A precast component hoisting equipment for bridge construction

Abstract

This utility model discloses a precast component hoisting device for bridge construction, belonging to the technical field of bridge construction equipment. It includes a fixed base with a telescopic mechanism on its top. A top seat is connected to the top of the telescopic mechanism. Two cylinders are symmetrically connected to one side of the top seat, and a rectangular seat is fixedly connected to the output end of each cylinder. In this utility model, the cylinders drive the rectangular seat, fixed box, hoist housing, and winding mechanism to move, allowing the winding mechanism and external fixing devices to meet different length requirements. At this time, the rectangular seat drives the first rack to rotate via a connecting block, causing the gear to drive the second rack, fixed block, and counterweight block to move away from the fixed box. This automatically adjusts the center of gravity on both sides of the top seat, effectively improving the balance of the top seat and fixed base during use, thereby preventing any impact on the hoisting operation.

Description

Technical Field

[0001] This utility model belongs to the technical field of bridge construction equipment, and in particular relates to a precast component hoisting equipment for bridge construction. Background Technology

[0002] Bridges are structures built over rivers, lakes, and seas to allow vehicles and pedestrians to pass smoothly. The construction sites for prefabricated components used in bridge engineering are also increasing. Prefabricated components are prefabricated components for on-site assembly. To ensure the installation of prefabricated components, hoisting equipment is needed to move them to the appropriate location.

[0003] For example, Chinese patent document (CN116281564B) discloses a hoisting device for bridge construction, including a support frame. A fixed frame is provided at the upper end of the support frame, and a first hydraulic cylinder for pushing the fixed frame to move is provided on the support frame. A lever arm is provided at one end of the fixed frame, and one end of the lever arm is inserted into the fixed frame. This invention, by setting a fixing assembly composed of a first column and a fixing plate, allows the soundproof barrier to be placed into a limiting groove from the upper end of the first column during use. The material limiting mechanism allows the soundproof barrier to move. Without sliding out of the limiting groove, during material unloading, the first column is aligned with the H-beam on the bridge body, and then the material limiting mechanism is released from the restriction on the sound barrier. In this way, the sound barrier at the first column will slide into the H-beam under its own weight. This technical solution can complete the hoisting and installation of multiple sound barrier bodies at one time, and the installation efficiency is higher. However, during the use of this equipment, its elongation is too large, which will affect the center of gravity of the entire equipment, and thus affect the operational stability and safety of the equipment. Therefore, it needs to be improved. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that the excessive elongation of the existing technology during use will affect the center of gravity of the entire equipment, thereby affecting the stability and safety of the equipment operation. Therefore, a precast component hoisting equipment for bridge construction is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A precast component hoisting device for bridge construction includes a fixed base, a telescopic mechanism on the top of the fixed base, a top seat connected to the top of the telescopic mechanism, two cylinders symmetrically connected to the outer side of the top seat, a rectangular seat fixedly connected to the output end of the cylinders, the rectangular seat slidably connected inside the top seat, and a center of gravity adjustment component provided on one side of the inside of the rectangular seat; a fixed box fixedly connected to the side of the rectangular seat away from the top seat, and a cleaning component provided on one side of the inside of the fixed box.

[0007] The center of gravity adjustment component includes a connecting block, the top of which is fixedly connected to the inner wall of the rectangular seat. A first rack is fixedly connected to one side of the connecting block, a gear is meshed with the other side of the first rack, a second rack is meshed with the other side of the gear, a fixing block is fixedly connected to the bottom of the second rack, and a counterweight is fixedly connected to the other side of the fixing block.

[0008] As a further description of the above technical solution:

[0009] A connecting shaft is fixedly connected inside the gear, and the connecting shaft is rotatably connected inside the top seat. The second rack and the first rack are arranged in opposite directions. A T-shaped slider is fixedly connected to the side of the second rack away from the gear. A T-shaped groove is opened on one side of the inside of the top seat, and the T-shaped slider is slidably connected in the T-shaped groove. The fixed block and the counterweight are both slidably connected inside the top seat, and the cross-sectional shape of the fixed block is set to L-shape.

[0010] As a further description of the above technical solution:

[0011] The bottom of the telescopic mechanism is connected to a rotating motor via a fixed shaft. The rotating motor is located inside the fixed base, and the bottom of the rotating motor is fixedly connected to the inner wall of the fixed base. The cross-sectional shape of the fixed base is T-shaped.

[0012] As a further description of the above technical solution:

[0013] A hoist shell is provided on one side inside the fixed box. Both the hoist shell and the bottom of the fixed box have circular through holes. A winding mechanism is provided inside the hoist shell. A rotating shaft is provided inside the winding mechanism. One end of the rotating shaft extends to the outside of the fixed box and is fixedly connected to a drive motor. The drive motor is fixedly connected to the outer wall of the fixed box through a support base. The rotating shaft is rotatably connected inside the fixed box.

[0014] As a further description of the above technical solution:

[0015] The cleaning component includes a connecting seat with an annular cross-section. The top of the connecting seat is fixedly connected to the outer wall of the fixed box, and the connecting seat and the circular through hole are on the same axis.

[0016] As a further description of the above technical solution:

[0017] Support blocks are fixedly connected to both sides of the bottom of the connector. The cross-sectional shape of the support blocks is L-shaped. The same cleaning block is fixedly connected to one side of the two support blocks. The cross-sectional shape of the cleaning block is annular, and the cleaning block and the circular through hole are on the same axis.

[0018] As a further description of the above technical solution:

[0019] The connecting seat has a cavity inside, and multiple air outlets are arranged in a circular array at the bottom of the cavity. One side of the cavity is connected to an air supply pipe, and the other end of the air supply pipe is connected to an air bladder. The bottom of the air bladder is fixedly connected to the inner wall of the fixed box through a flat plate.

[0020] As a further description of the above technical solution:

[0021] A horizontal plate is fixedly connected to the top of the airbag, and a protrusion is provided on the top of the horizontal plate. The protrusion is fixedly connected to the outer periphery of the rotating shaft. An air inlet pipe is connected to one side of the airbag. One-way valves are provided on both the air inlet pipe and the air supply pipe. Springs are provided on both sides of the airbag. The two sides of the springs are fixedly connected to the bottom of the horizontal plate and the top of the plate, respectively.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0023] 1. In this utility model, the center of gravity adjustment component enables the cylinder to move the rectangular seat, the fixed box, the hoist shell, and the winding mechanism, so that the winding mechanism and the external fixing device can meet the usage requirements of different lengths. At this time, the rectangular seat will drive the first rack to rotate through the connecting block, so that the gear drives the second rack, the fixed block and the counterweight to move away from the fixed box, so as to automatically adjust the center of gravity on both sides of the top seat, effectively improving the balance of the top seat and the fixed seat during use, thereby preventing the impact on the hoisting work of the equipment.

[0024] 2. In this utility model, after the prefabricated parts are clamped and fixed by the external fixing device through the cleaning component, the drive motor drives the rotating shaft and the winding mechanism to rotate. At this time, the cleaning block will clean the surface of the wire rope to prevent impurities from adhering to its surface, thereby helping to reduce the wear of the wire rope during use. At the same time, the rotating shaft will squeeze the cross plate, air bag and spring through the protrusion, and spray the gas inside the air bag through the air pipe, cavity and multiple air outlets onto the contact surface of the cleaning block and the wire rope, further improving the cleaning effect of the equipment on the wire rope. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the center of gravity adjustment component in this utility model;

[0027] Figure 3 In this utility model Figure 2 A magnified schematic diagram of the structure at point A;

[0028] Figure 4 This is a schematic diagram of the overall three-dimensional structure of the cleaning component in this utility model;

[0029] Figure 5 In this utility model Figure 4 A magnified schematic diagram of the structure at point B.

[0030] Legend:

[0031] 1. Fixed base; 2. Telescopic mechanism; 3. Top base; 4. Cylinder; 5. Rectangular base; 6. Center of gravity adjustment assembly; 601. Connecting block; 602. First rack; 603. Gear; 604. Connecting shaft; 605. Second rack; 606. Fixed block; 607. Counterweight block; 7. Fixed box; 8. Hoist housing; 9. Cleaning assembly; 901. Connecting base; 902. Support block; 903. Cleaning block; 904. Cavity; 905. Air outlet; 906. Air duct; 907. Airbag; 908. Horizontal plate; 909. Protrusion; 910. Spring; 10. Rotating shaft; 11. Drive motor. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0033] Please see Figures 1-5 This utility model provides a technical solution: a precast component hoisting device for bridge construction, including a fixed base 1, a telescopic mechanism 2 is provided on the top of the fixed base 1, a top base 3 is connected to the top of the telescopic mechanism 2, two cylinders 4 are symmetrically connected to the outer side of the top base 3, a rectangular base 5 is fixedly connected to the output end of the cylinders 4, the rectangular base 5 is slidably connected inside the top base 3, and a center of gravity adjustment component 6 is provided on one side inside the rectangular base 5, a fixed box 7 is fixedly connected to the side of the rectangular base 5 away from the top base 3, and a cleaning component 9 is provided on one side inside the fixed box 7.

[0034] The center-of-gravity adjustment assembly 6 includes a connecting block 601. The top of the connecting block 601 is fixedly connected to the inner wall of the rectangular base 5. A first rack 602 is fixedly connected to one side of the connecting block 601. A gear 603 is meshed with the other side of the first rack 602. A second rack 605 is meshed with the other side of the gear 603. A fixing block 606 is fixedly connected to the bottom of the second rack 605. A counterweight block 607 is fixedly connected to the other side of the fixing block 606. A connecting shaft 604 is fixedly connected inside the gear 603. The connecting shaft 604 is rotatably connected inside the top base 3. The second rack 605 and the first rack 602 are arranged opposite to each other. A T-shaped slider is fixedly connected to the side of the second rack 605 away from the gear 603. A T-shaped groove is opened on one side of the inside of the top base 3. The T-shaped slider is slidably connected to the T-shaped groove. Inside the chute, the fixed block 606 and the counterweight 607 are slidably connected inside the top seat 3. The fixed block 606 has an L-shaped cross-section. The bottom of the telescopic mechanism 2 is connected to a rotating motor via a fixed shaft. The rotating motor is located inside the fixed seat 1, and its bottom is fixedly connected to the inner wall of the fixed seat 1. The fixed seat 1 has a T-shaped cross-section. A hoist shell 8 is provided on one side inside the fixed box 7. Both the hoist shell 8 and the bottom of the fixed box 7 have circular through holes. A winding mechanism is provided inside the hoist shell 8. A rotating shaft 10 is provided inside the winding mechanism. One end of the rotating shaft 10 extends to the outside of the fixed box 7 and is fixedly connected to a drive motor 11. The drive motor 11 is fixedly connected to the outer wall of the fixed box 7 via a support seat. The rotating shaft 10 is rotatably connected inside the fixed box 7.

[0035] Detailed Implementation: The fixed base 1 is fixed to the external mobile device, and the wire rope is wound around the winding mechanism. Then, the external fixing device is connected to the wire rope on the winding mechanism. The external mobile device drives the fixed base 1 to move. The telescopic mechanism 2 adjusts the height of the top base 3, the fixed box 7, the hoist housing 8, and the winding mechanism. The cylinder 4 is activated as needed, driving the rectangular base 5, the fixed box 7, the hoist housing 8, and the winding mechanism to move, allowing the winding mechanism and external fixing device to adapt to different length requirements. The external fixing device can be activated to different distances as needed. Above the precast components, precast components at different distances are fixed. At the same time, the rectangular base 5 drives the first rack 602 to rotate through the connecting block 601. Utilizing the linkage effect between the first rack 602 and the gear 603, power is transmitted to the gear 603, causing the gear 603 to drive the second rack 605 to move. This causes the second rack 605 to drive the fixed block 606 and the counterweight block 607 to move away from the fixed box 7, thereby automatically adjusting the center of gravity on both sides of the top base 3. This effectively improves the balance of the top base 3 and the fixed base 1 during use, thus preventing any impact on the hoisting work of the equipment.

[0036] The cleaning component 9 includes a connecting seat 901 with an annular cross-section. The top of the connecting seat 901 is fixedly connected to the outer wall of the fixed box 7, and the connecting seat 901 and the circular through hole are on the same axis. Support blocks 902 are fixedly connected to both sides of the bottom of the connecting seat 901. The cross-sectional shape of the support blocks 902 is L-shaped. The same cleaning block 903 is fixedly connected to one side of the two support blocks 902. The cross-sectional shape of the cleaning block 903 is annular, and the cleaning block 903 and the circular through hole are on the same axis. A cavity 904 is formed inside the connecting seat 901, and the bottom of the cavity 904 is circumferentially arranged. Multiple air outlets 905 are distributed in the column. One side of the cavity 904 is connected to an air supply pipe 906, and the other end of the air supply pipe 906 is connected to an airbag 907. The bottom of the airbag 907 is fixedly connected to the inner wall of the fixed box 7 via a flat plate. A horizontal plate 908 is fixedly connected to the top of the airbag 907. A protrusion 909 is provided on the top of the horizontal plate 908. The protrusion 909 is fixedly connected to the outer periphery of the rotating shaft 10. An air inlet pipe is connected to one side of the airbag 907. One-way valves are provided on both the air inlet pipe and the air supply pipe 906. Springs 910 are provided on both sides of the airbag 907. The two sides of the springs 910 are fixedly connected to the bottom of the horizontal plate 908 and the top of the flat plate, respectively.

[0037] Detailed Implementation: After the external fixing device clamps and fixes the precast component, the drive motor 11 is started. The drive motor 11 drives the rotating shaft 10 and the winding mechanism to rotate, causing the winding mechanism to move the external fixing device and the precast component upwards via the wire rope, hoisting them to a suitable external position. At this time, the cleaning block 903 cleans the surface of the wire rope to prevent impurities from adhering to its surface, thereby helping to reduce wear on the wire rope during use. Simultaneously, the rotating shaft 10 drives the protrusion 909 to rotate, and the protrusion 909 rotates... During the process, the horizontal plate 908, airbag 907, and spring 910 are squeezed, and the gas inside the airbag 907 is transported to the cavity 904 through the air supply pipe 906. The gas is then sprayed onto the contact surface of the cleaning block 903 and the wire rope through multiple air outlets 905, further improving the cleaning effect of the equipment on the wire rope. Afterward, the hoisting height of the equipment is adjusted by the telescopic mechanism 2. Rotating the motor will drive the telescopic mechanism 2 and the top seat 3 to move, thereby adjusting the hoisting angle of the external fixing device and prefabricated components, effectively improving the applicability of the equipment.

[0038] Working Principle: In use, the fixed base 1 is fixed to the external mobile device, and the wire rope is wound around the winding mechanism. Then, the external fixing device is connected to the wire rope on the winding mechanism. The fixed base 1 is moved by the external mobile device. The telescopic mechanism 2 adjusts the height of the top base 3, the fixed box 7, the hoist housing 8, and the winding mechanism. The cylinder 4 is activated as needed, which moves the rectangular base 5, the fixed box 7, the hoist housing 8, and the winding mechanism to accommodate different length requirements. The external fixing device is activated to move above the precast parts at different distances to fix them. At the same time, the rectangular base 5 drives the first rack 602 to rotate through the connecting block 601. Utilizing the linkage effect between the first rack 602 and the gear 603, power is transmitted to the gear 603, causing the gear 603 to drive the second rack 605 to move. The second rack 605 then drives the fixed block 605. 6 and counterweight 607 move away from the fixed box 7 to automatically adjust the center of gravity on both sides of the top seat 3. After the external fixing device clamps and fixes the precast component, the drive motor 11 is started. The drive motor 11 drives the rotating shaft 10 and the winding mechanism to rotate, so that the winding mechanism drives the external fixing device and the precast component upward through the wire rope, hoisting it to a suitable external position. At this time, the cleaning block 903 cleans the surface of the wire rope, and the rotating shaft 10 drives the protrusion 90 9 rotates, and during the rotation, the protrusion 909 squeezes the horizontal plate 908, airbag 907 and spring 910, and delivers the gas inside the airbag 907 to the cavity 904 through the air supply pipe 906, and sprays it onto the contact surface of the cleaning block 903 and the wire rope through multiple air outlets 905. Then, the hoisting height of the equipment is adjusted by the telescopic mechanism 2. The rotating motor drives the telescopic mechanism 2 and the top seat 3 to move, so as to adjust the hoisting angle of the external fixing device and the prefabricated parts.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A precast component hoisting device for bridge construction, comprising a fixed base (1), characterized in that: The top of the fixed base (1) is provided with a telescopic mechanism (2), the top of the telescopic mechanism (2) is connected to a top base (3), two cylinders (4) are symmetrically connected to the outer side of the top base (3), the output end of the cylinder (4) is fixedly connected to a rectangular base (5), the rectangular base (5) is slidably connected inside the top base (3), and a center of gravity adjustment component (6) is provided on one side inside the rectangular base (5). A fixed box (7) is fixedly connected to the side of the rectangular base (5) away from the top base (3), and a cleaning component (9) is provided on one side inside the fixed box (7). The center of gravity adjustment component (6) includes a connecting block (601), the top of which is fixedly connected to the inner wall of the rectangular base (5), a first rack (602) is fixedly connected to one side of the connecting block (601), a gear (603) is meshed with the other side of the first rack (602), a second rack (605) is meshed with the other side of the gear (603), a fixing block (606) is fixedly connected to the bottom of the second rack (605), and a counterweight (607) is fixedly connected to the other side of the fixing block (606).

2. The precast component hoisting equipment for bridge construction according to claim 1, characterized in that: A connecting shaft (604) is fixedly connected inside the gear (603). The connecting shaft (604) is rotatably connected inside the top seat (3). The second rack (605) and the first rack (602) are arranged oppositely. A T-shaped slider is fixedly connected to the side of the second rack (605) away from the gear (603). A T-shaped groove is opened on one side inside the top seat (3). The T-shaped slider is slidably connected in the T-shaped groove. The fixing block (606) and the counterweight block (607) are both slidably connected inside the top seat (3). The cross-sectional shape of the fixing block (606) is set to L-shape.

3. The precast component hoisting equipment for bridge construction according to claim 2, characterized in that: The bottom of the telescopic mechanism (2) is connected to a rotating motor via a fixed shaft. The rotating motor is located inside the fixed seat (1), and the bottom of the rotating motor is fixedly connected to the inner wall of the fixed seat (1). The cross-sectional shape of the fixed seat (1) is T-shaped.

4. The precast component hoisting equipment for bridge construction according to claim 3, characterized in that: A hoist shell (8) is provided on one side inside the fixed box (7). Both the hoist shell (8) and the bottom of the fixed box (7) are provided with circular through holes. A winding mechanism is provided inside the hoist shell (8). A rotating shaft (10) is provided inside the winding mechanism. One end of the rotating shaft (10) extends to the outside of the fixed box (7) and is fixedly connected to a drive motor (11). The drive motor (11) is fixedly connected to the outer wall of the fixed box (7) through a support seat. The rotating shaft (10) is rotatably connected inside the fixed box (7).

5. The precast component hoisting equipment for bridge construction according to claim 4, characterized in that: The cleaning component (9) includes a connecting seat (901) with an annular cross-section. The top of the connecting seat (901) is fixedly connected to the outer wall of the fixed box (7), and the connecting seat (901) and the circular through hole are on the same axis.

6. The precast component hoisting equipment for bridge construction according to claim 5, characterized in that: Support blocks (902) are fixedly connected to both sides of the bottom of the connecting seat (901). The cross-sectional shape of the support block (902) is set to L-shape. The same cleaning block (903) is fixedly connected to one side of the two support blocks (902). The cross-sectional shape of the cleaning block (903) is annular, and the cleaning block (903) and the circular through hole are on the same axis.

7. The precast component hoisting equipment for bridge construction according to claim 6, characterized in that: The connecting seat (901) has a cavity (904) inside. Multiple air outlets (905) are arranged in a circular array at the bottom of the cavity (904). An air supply pipe (906) is connected to one side of the cavity (904), and an air bag (907) is connected to the other end of the air supply pipe (906). The bottom of the air bag (907) is fixedly connected to the inner wall of the fixed box (7) through a flat plate.

8. The precast component hoisting equipment for bridge construction according to claim 7, characterized in that: A horizontal plate (908) is fixedly connected to the top of the airbag (907). A protrusion (909) is provided on the top of the horizontal plate (908). The protrusion (909) is fixedly connected to the outer periphery of the rotating shaft (10). An air inlet pipe is connected to one side of the airbag (907). A one-way valve is provided on both the air inlet pipe and the air supply pipe (906). Springs (910) are provided on both sides of the airbag (907). The two sides of the springs (910) are fixedly connected to the bottom of the horizontal plate (908) and the top of the plate, respectively.

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