A prefabricated box girder pouring device

Abstract

This utility model discloses a precast box girder casting device, which relates to the field of box girder casting technology. It includes a base plate, with two supports and a box girder casting mold mounted on the top of the base plate. A moving component is arranged between opposite sides of the two supports. The vibration component includes a mounting frame, with a rotating shaft rotatably mounted on the top of the mounting frame. A cross plate and a vertical plate are fixedly mounted on the bottom of the rotating shaft. A set of round shells and arc-shaped rubber impact blocks are fixedly mounted on the outer wall of the vertical plate. A gear is fixedly mounted on the top of the rotating shaft, and a rack is meshed on the outer wall of the gear. When the moving component moves to perform casting, the gear and rack work together to drive the arc-shaped rubber impact blocks to continuously rotate and impact the box girder casting mold, causing the mold to vibrate. This vibration breaks up air bubbles in the concrete near the box girder casting mold, improving the strength and durability of the box girder and ensuring its overall quality.

Description

Technical Field

[0001] This utility model relates to the field of box girder casting technology, specifically a precast box girder casting device. Background Technology

[0002] Precast box girders are a type of beam used in bridge engineering. They are hollow inside and have flanges on both sides of the upper part, hence the name. They are concrete structures precast in a separate site or factory and then erected on bridge piers using a bridge-building machine. During the casting of precast box girders, concrete is poured into the formwork.

[0003] In the prior art, such as the intelligent casting device for precast concrete box girders described in patent number CN218398718U, the technical solution is as follows: it includes a box girder body and a base at the bottom for supporting the box girder body. Support plates are slidably connected to both sides of the top of the base. A bearing plate is provided in the middle of the two support plates. A sliding groove is opened on one side of each of the two support plates. Both ends of the bearing plate are located in the inner cavity of the sliding groove and are slidably connected to the support plate. Limiting grooves are opened on both sides of the bottom of the bearing plate. U-shaped clamps are provided at both ends of one side of the bearing plate. Limiting blocks are fixedly connected to the bottom of the inner cavity of the U-shaped clamps. The limiting blocks are located in the inner cavity of the limiting grooves. A clamping member is fixedly connected to one side of the U-shaped clamps.

[0004] Although the aforementioned patent can cast box girders, some problems still exist. During concrete casting, some air bubbles may be present in the concrete near the surface of the box girder mold. If these air bubbles are not dealt with in time, they may affect the quality of the box girder forming. Therefore, this utility model provides a precast box girder casting device. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a precast box girder casting device, which solves the problem that during concrete casting, there may be some air bubbles in the concrete near the surface of the box girder mold, and these air bubbles may affect the quality of the box girder forming if they are not dealt with in time.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a precast box girder casting device, including a base plate, two supports and a box girder casting mold are respectively installed on the top of the base plate, a movable component is arranged between the opposite sides of the two supports, and vibration components are arranged on both sides of the outer wall of the movable component;

[0007] The moving component includes a housing, a moving plate is movably inserted into the inner wall of the housing, and a feeding pipe is fixedly installed on the outer wall of the moving plate;

[0008] The vibration assembly includes a mounting frame, a rotating shaft rotatably mounted on the top of the mounting frame, a cross plate fixedly mounted on the bottom of the rotating shaft, a set of vertical plates mounted on the bottom of the cross plate, a set of circular shells fixedly mounted on the outer wall of the vertical plates, an arc-shaped rubber impact block provided on one side of the outer wall of the circular shells, a gear fixedly mounted on the top of the rotating shaft, and a rack meshing on the outer wall of the gear.

[0009] Preferably, electric slide rails are fixedly installed on the outer walls of both brackets, and mounting plates are fixedly installed on the output ends of the two electric slide rails. The mounting plates are fixedly connected to the housing, and a threaded screw is rotatably installed on the inner wall of the housing. The outer wall of the threaded screw is threadedly connected to the moving plate.

[0010] Preferably, a motor is fixedly installed on one side of the outer wall of the housing, and the output shaft of the motor passes through the inner wall of the housing and is fixedly connected to one end of the outer wall of the threaded screw.

[0011] Preferably, a spring is fixedly installed on the inner wall of the circular shell, and a sliding post is fixedly installed on one end of the outer wall of the spring, the sliding post being movably inserted into the inner wall of the circular shell.

[0012] Preferably, the sliding column is fixedly connected to the arc-shaped rubber impact block, a limiting groove is formed through the outer wall of the circular shell, a limiting block is fixedly installed on the outer wall of the sliding column, and the limiting block is movably inserted into the inner wall of the limiting groove.

[0013] Preferably, the two racks are fixedly connected to the inner walls of the two brackets respectively, and the two mounting brackets are fixedly connected to the mounting plate.

[0014] Beneficial effects

[0015] This utility model provides a precast box girder casting device. Compared with the prior art, it has the following advantages:

[0016] 1. In this precast box girder casting device, when the electric slide rail moves the material feeding pipe, it drives the mounting plate and mounting frame to move linearly together, causing the gears to roll on the rack, which in turn drives the rotating shaft to rotate. The rotation of the rotating shaft, in turn, drives the cross plate fixed at its bottom to rotate, and the vertical plate installed at the bottom of the cross plate rotates accordingly. The circular shell fixed to the outer wall of the vertical plate and the arc-shaped rubber impact block on one side of the outer wall of the circular shell also rotate, causing the arc-shaped rubber impact block on the circular shell to continuously impact the box girder casting mold. During the rotation, the arc-shaped rubber impact block is squeezed by the box girder casting mold, thus moving inward to compress the spring. At this time, the arc-shaped rubber impact block can rotate past the surface of the box girder casting mold. As the mounting frame moves, the arc-shaped rubber impact block can continue to rotate and impact the box girder casting mold, causing the box girder casting mold to vibrate. This can break up air bubbles in the concrete near the box girder casting mold, effectively solving the problem of air bubbles in the concrete near the mold surface. This avoids internal defects in the box girder after molding due to residual air bubbles, improves the strength and durability of the box girder, and ensures the overall quality of the box girder.

[0017] 2. This precast box girder casting device, through the coordination of the motor, threaded screw, and electric slide rail in the moving component, achieves automatic and precise movement of the material discharge pipe, significantly increasing the concrete pouring speed compared to manual hand-held equipment. It can complete the casting of large-area box girders in a short time, reducing construction time and improving overall construction efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective;

[0020] Figure 3 This is a schematic diagram of the main structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the relevant structure of the vibration component of this utility model;

[0022] Figure 5 This is a partial structural schematic diagram of the vibration component of this utility model.

[0023] In the diagram: 1. Base plate; 2. Support frame; 3. Box girder casting mold; 4. Moving component; 41. Electric slide rail; 42. Mounting plate; 43. Housing; 44. Threaded screw; 45. Motor; 46. Moving plate; 48. Feed pipe; 5. Vibration component; 51. Mounting frame; 52. Rotating shaft; 53. Gear; 54. Rack; 55. Cross plate; 56. Vertical plate; 57. Round shell; 58. Spring; 59. Sliding column; 510. Arc-shaped rubber impact block; 511. Limiting groove; 512. Limiting block. Detailed Implementation

[0024] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This utility model provides two technical solutions:

[0026] Figures 1-5 The first embodiment is shown: a precast box girder casting device, including a base plate 1, two supports 2 and a box girder casting mold 3 respectively installed on the top of the base plate 1, a moving component 4 is arranged between the opposite sides of the two supports 2, and vibration components 5 are arranged on both sides of the outer wall of the moving component 4.

[0027] The moving component 4 includes a housing 43, a moving plate 46 is movably inserted into the inner wall of the housing 43, and a feeding pipe 48 is fixedly installed on the outer wall of the moving plate 46.

[0028] The vibration assembly 5 includes a mounting frame 51. A rotating shaft 52 is rotatably mounted on the top of the mounting frame 51. A cross plate 55 is fixedly mounted on the bottom of the rotating shaft 52. A set of vertical plates 56 is mounted on the bottom of the cross plate 55. A set of circular shells 57 is fixedly mounted on the outer wall of the vertical plates 56. An arc-shaped rubber impact block 510 is provided on one side of the outer wall of the circular shell 57. The vibration assembly 5 is set at a suitable distance from the box girder casting mold 3 so that when the arc-shaped rubber impact block 510 rotates, it can contact the surface of the box girder casting mold 3, thereby generating an impact and causing the surface of the box girder casting mold 3 to vibrate. A gear 53 is fixedly mounted on the top of the rotating shaft 52. A rack 54 is meshed on the outer wall of the gear 53. When the mounting frame 51 moves, it will drive the gear 53 to rotate on the surface of the rack 54.

[0029] Electric slide rails 41 are fixedly installed on the outer walls of both brackets 2. Mounting plates 42 are fixedly installed on the output ends of the two electric slide rails 41. The electric slide rails 41 are existing technology and can drive the mounting plates 42 to move linearly. The mounting plates 42 are fixedly connected to the housing 43. A threaded screw 44 is rotatably installed on the inner wall of the housing 43. The outer wall of the threaded screw 44 is threadedly connected to the moving plate 46.

[0030] A motor 45 is fixedly installed on one side of the outer wall of the housing 43. The output shaft of the motor 45 passes through the inner wall of the housing 43 and is fixedly connected to one end of the outer wall of the threaded screw 44. When the motor 45 starts, it can drive the threaded screw 44 to rotate, thereby driving the moving plate 46 and the feeding pipe 48 to move.

[0031] Figures 1-5 The second embodiment is shown. The main difference from the first embodiment is that a spring 58 is fixedly installed on the inner wall of the circular shell 57, and a sliding column 59 is fixedly installed on one end of the outer wall of the spring 58. The sliding column 59 is movably inserted into the inner wall of the circular shell 57. When the arc-shaped rubber impact block 510 impacts, it will be squeezed by the box girder casting mold 3, which will cause the sliding column 59 to contract inward. At this time, the spring 58 is squeezed, which makes the extension distance of the arc-shaped rubber impact block 510 shorter, so that it can slide across the surface of the box girder casting mold 3.

[0032] The sliding column 59 is fixedly connected to the arc-shaped rubber impact block 510. A limiting groove 511 is opened through the outer wall of the round shell 57. A limiting block 512 is fixedly installed on the outer wall of the sliding column 59. The limiting block 512 is movably inserted into the inner wall of the limiting groove 511. The limiting block 512 and the limiting groove 511 can limit the sliding column 59 and prevent the extension distance between the arc-shaped rubber impact block 510 and the sliding column 59 from being too large.

[0033] The two racks 54 are fixedly connected to the inner walls of the two brackets 2 respectively, and the two mounting brackets 51 are fixedly connected to the mounting plate 42.

[0034] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0035] During operation, when precast box girders are required, concrete is first poured into the box girder casting mold 3 through the discharge pipe 48. Then, the discharge pipe 48 is moved in the direction of the support 2 by two electric slide rails 41. Then, the motor 45 is turned on, and the motor 45 drives the threaded screw 44 to rotate. The threaded screw 44 then drives the moving plate 46 and the discharge pipe 48 to move in the direction of the machine casing 43. During the movement, the discharge pipe 48 delivers concrete into the box girder casting mold 3, realizing the concrete pouring operation. This allows the discharge pipe 48 to accurately pour concrete at different parts of the mold. When the electric slide rails 41 move the discharge pipe 48, they will drive the mounting plate 42 and the mounting frame 51 to move linearly together, which will cause the gear 53 to roll on the rack 54, thereby driving the rotating shaft 52 to rotate. The rotation of the rotating shaft 52 will drive the cross plate 55 fixed at its bottom to rotate, and the vertical plate 56 installed at the bottom of the cross plate 55 will rotate accordingly. The circular shell 57 fixed to the outer wall of the vertical plate 56 and the arc-shaped rubber impact block 510 on one side of the outer wall of the circular shell 57 also rotate, causing the arc-shaped rubber impact block 510 on the circular shell 57 to continuously impact the box girder casting mold 3. During the rotation, the arc-shaped rubber impact block 510 is squeezed by the box girder casting mold 3, thereby moving inward to compress the spring 58. At this time, the arc-shaped rubber impact block 510 can rotate past the surface of the box girder casting mold 3. As the mounting frame 51 moves, the arc-shaped rubber impact block 510 can continue to rotate and impact the box girder casting mold 3, causing the box girder casting mold 3 to vibrate. This can break up air bubbles in the concrete near the box girder casting mold 3, effectively solving the problem of air bubbles in the concrete near the mold surface. This avoids internal defects in the box girder after molding due to residual air bubbles, improves the strength and durability of the box girder, and ensures the overall quality of the box girder.

[0036] 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.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A prefabricated box girder pouring device, comprising a bottom plate (1), the top end of the bottom plate (1) is respectively provided with two supports (2) and a box girder pouring mold (3), characterized in that: A movable component (4) is provided between the opposite sides of the two supports (2), and a vibration component (5) is provided on both sides of the outer wall of the movable component (4); The moving component (4) includes a housing (43), a moving plate (46) is movably inserted into the inner wall of the housing (43), and a feeding pipe (48) is fixedly installed on the outer wall of the moving plate (46). The vibration assembly (5) includes a mounting frame (51), a rotating shaft (52) is rotatably mounted on the top of the mounting frame (51), a cross plate (55) is fixedly mounted on the bottom of the rotating shaft (52), a set of vertical plates (56) is mounted on the bottom of the cross plate (55), a set of round shells (57) is fixedly mounted on the outer wall of the vertical plates (56), an arc-shaped rubber impact block (510) is provided on one side of the outer wall of the round shells (57), a gear (53) is fixedly mounted on the top of the rotating shaft (52), and a rack (54) is meshed on the outer wall of the gear (53).

2. The precast box girder pouring device according to claim 1, wherein: Electric slide rails (41) are fixedly installed on the outer walls of the two brackets (2). Mounting plates (42) are fixedly installed on the output ends of the two electric slide rails (41). The mounting plates (42) are fixedly connected to the housing (43). A threaded screw (44) is rotatably installed on the inner wall of the housing (43). The outer wall of the threaded screw (44) is threadedly connected to the moving plate (46).

3. The precast box girder pouring device according to claim 2, wherein: A motor (45) is fixedly installed on one side of the outer wall of the housing (43). The output shaft of the motor (45) passes through the inner wall of the housing (43) and is fixedly connected to one end of the outer wall of the threaded screw (44).

4. The precast box girder casting device according to claim 1, characterized in that: A spring (58) is fixedly installed on the inner wall of the round shell (57), and a sliding column (59) is fixedly installed on one end of the outer wall of the spring (58). The sliding column (59) is movably inserted into the inner wall of the round shell (57).

5. The precast box girder pouring device according to claim 4, wherein: The sliding column (59) is fixedly connected to the arc-shaped rubber impact block (510). A limiting groove (511) is opened through the outer wall of the round shell (57). A limiting block (512) is fixedly installed on the outer wall of the sliding column (59). The limiting block (512) is movably inserted into the inner wall of the limiting groove (511).

6. The precast box girder pouring device according to claim 2, wherein: The two racks (54) are fixedly connected to the inner walls of the two brackets (2) respectively, and the two mounting brackets (51) are fixedly connected to the mounting plate (42).

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