Prefabricated box girder web steel bar binding auxiliary tool
By designing an L-shaped structure and an adjustable scale plate for binding the web reinforcement of precast box girders, the problem of insufficient adaptability of traditional tools was solved, enabling precise control of reinforcement spacing, reducing construction costs and improving production quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2026-03-27
AI Technical Summary
In the process of binding reinforcement bars for the web of precast box girders, traditional measuring tools lack flexibility and adjustability, making it difficult to adapt to box girder webs of different specifications and sizes, resulting in increased construction costs and insufficient precision control.
An auxiliary tool comprising an L-shaped horizontal base plate and a vertical back plate was designed, equipped with an adjustable scale plate and roller structure, which enables precise control of rebar spacing through scale grooves and marking units, adapting to webs of different angles and sizes.
This technology enables precise control of rebar spacing during the binding of web reinforcement in precast box girders, reducing human error, lowering construction costs, and improving production quality and efficiency.
Smart Images
Figure CN224044134U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the field of building assembly, and particularly relates to a prefabricated box girder web reinforcement binding auxiliary tool. BACKGROUND
[0002] The prefabricated box girder is the most important component in the assembly bridge, and the internal reinforcement of the prefabricated box girder is staggered, so the reinforcement spacing needs to be strictly controlled. The reinforcement spacing is an important control item in the reinforcement binding process. If the error control precision of the reinforcement spacing is insufficient, the error will be accumulated, the positions of other reinforcements will be occupied, and the stress of the box girder will be seriously affected. The reinforcement arrangement at the web of the box girder is more complex than that at other positions, and the number of reinforcements is also more. Since the reinforcement at the web is long, the curvature will be generated during the extension of the reinforcement, so the spacing control of the web reinforcement should also be more precise. Actually, the advantage of the prefabricated box girder lies in high production standardization and precise parameter control. If the parameter control loses precision, the advantage of the prefabricated box girder will also be significantly weakened.
[0003] In the actual construction process, workers often rely on experience and simple measuring tools to control the reinforcement spacing. This method is easily affected by human factors and is difficult to guarantee high-precision spacing control. Especially at the complex structure part of the web, the traditional measuring method is more likely to have errors. Although some existing auxiliary tools can improve the precision of reinforcement spacing control to a certain extent, they often lack flexibility and are difficult to adapt to box girder webs of different specifications and sizes. In addition, most of the existing auxiliary tools lack adjustability and are difficult to quickly adjust according to different construction requirements and design parameters. This leads to the need to prepare multiple sets of auxiliary tools of different specifications when facing different prefabricated box girder projects, increasing the construction cost and management difficulty. CONTENT OF THE INVENTION
[0004] The application provides a prefabricated box girder web reinforcement binding auxiliary tool which can strictly control the spacing of the web reinforcement and guarantee the production and processing quality.
[0005] The technical scheme of the application is as follows:
[0006] A prefabricated box girder web reinforcement binding auxiliary tool, comprising a horizontal bottom plate and a vertical back plate intersecting into an L shape,
[0007] A first scale plate is arranged in parallel above the horizontal bottom plate, an inclined second scale plate is arranged between the first scale plate and the vertical back plate, and the two ends of the second scale plate are respectively connected with the first scale plate and the vertical back plate in a sliding mode;
[0008] The first and second scale plates are provided with a scale slot penetrating along the middle line of the length direction, at least one side of the scale slot is marked with a scale, and a plurality of marking units are arranged in the scale slot, the marking unit comprises a bolt shaft, a movable gasket connected with the bolt shaft in the upper part of the scale slot, and a bolt screw-connected with the bolt shaft in the lower part of the scale slot.
[0009] Further, the diameter of the movable gasket is greater than the width of the scale slot.
[0010] Further, the horizontal bottom plate is provided with a roller shell below, and the roller shell is internally provided with a roller rotationally connected therewith.
[0011] Further, the roller shell is externally provided with a horizontal shaft, and an arc-shaped ring body is rotationally connected to the horizontal shaft.
[0012] Further, a fixed gasket is arranged between the bolt and the scale slot, and the fixed gasket and the bolt shaft are in an integral structure.
[0013] Due to the adoption of the above technical scheme, the application has the following beneficial effects:
[0014] 1. The prefabricated box girder web reinforcement binding auxiliary tool provided by the application can adapt to different web angles and realize repeated application of the tool in multiple scenes. In specific use, the inclination angle of the second scale plate can be finely adjusted through the first and second scale plates, so as to match the inclination angle of the web.
[0015] 2. The application can maintain a fixed spacing of the reinforcement during the binding process. During reinforcement binding, multiple tools are used jointly in the length direction of the box girder. Before binding, a marking unit is installed at the corresponding position according to the drawing, and then the tool is moved and attached to the reinforcement binding position. The reinforcement can be placed on the bolt shaft of the marking unit or at a certain distance to play a role in indicating the spacing.
[0016] 3. In the application, a marking unit needs to be installed on the first scale plate at the lowermost end of the second scale plate. This marking unit does not have a marking function, but can limit the second scale plate to prevent it from moving. In order to further improve the limiting effect, a marking unit can also be installed on the back of the second scale plate on the first scale plate.
[0017] 4. As a preferred embodiment of the application, the roller shell and the roller are provided in the application, the roller shell is provided with a horizontal shaft, the horizontal shaft is rotationally connected with an arc-shaped ring body, which can fix the roller to prevent the tool from moving. After the arc-shaped ring body is rotated, it is rotated into the gap between the roller and the roller shell, and the roller is clamped to prevent it from moving. BRIEF DESCRIPTION OF DRAWINGS
[0018] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and serve to explain the principles of the application, and do not limit the application.
[0019] Figure 1 A structure schematic diagram of a prefabricated box girder web reinforcement binding auxiliary tool provided by the application is shown in the figure;
[0020] Figure 2 A structure schematic diagram of the marking unit is shown in the figure;
[0021] Figure 3 A structure schematic diagram of the marking unit is shown in the figure; Figure 1 An enlarged view of A in the figure;
[0022] In the drawings:
[0023] 1, horizontal bottom plate; 2, vertical back plate; 3, first scale plate; 4, second scale plate; 5, scale groove; 6, marking unit; 7, bolt shaft; 8, movable gasket; 9, bolt; 10, roller housing; 11, roller; 12, horizontal shaft; 13, ring body; 14, fixed gasket. DETAILED DESCRIPTION
[0024] Based on the background art, referring to the accompanying Figure 1 The accompanying Figure 3 , the application provides a prefabricated box girder web reinforcement binding auxiliary tool, which comprises an L-shaped horizontal bottom plate 1 and a vertical back plate 2, a first scale plate 3 is arranged in parallel above the horizontal bottom plate 1, an inclined second scale plate 4 is arranged between the first scale plate 3 and the vertical back plate 2, and the second scale plate 4 is slidably connected to the first scale plate 3 and the vertical back plate 2 at two ends respectively; a scale groove 5 is arranged through the middle line of the first scale plate 3 and the second scale plate 4 along the length direction, at least one side of the scale groove 5 is marked with a scale, and a plurality of marking units 6 are arranged in the scale groove 5, the marking unit 6 comprises a bolt 9 shaft 7, a movable gasket 8 which is connected to the bolt 9 shaft 7 in a sleeved manner above the scale groove 5, and a bolt 9 which is screw-connected to the bolt 9 shaft 7 below the scale groove 5.
[0025] It should be noted that the structure in the accompanying Figure 1 is only an example, and in specific implementation, the height of the vertical back plate 2 should be able to keep the second scale plate 4 in a vertical state. The application forms a stable support through the L-shaped vertical back plate 2 and the horizontal bottom plate 1, which is helpful for the stress of the auxiliary tool. Further, the first scale plate 3 is arranged above the horizontal bottom plate 1, the inclined second scale plate 4 is arranged between the first scale plate 3 and the vertical back plate 2, the first scale plate 3 and the vertical back plate 2 are perpendicular to each other, and the inclination angle of the second scale plate 4 is adjusted through the scale, which is convenient and fast.
[0026] In the present application, the sliding connection between the second scale plate 4 and the first scale plate 3 and the vertical back plate 2 can be achieved by a sliding rail and a sliding groove. When the sliding device is not provided, the second scale plate 4 can also slide. When the angle of the second scale plate 4 is determined, a bolt 9 can be installed at the upper end of the scale groove 5 for fastening.
[0027] In the present application, the movable gasket 8 of the marking unit 6 can protect the scale and prevent it from being worn. In addition, a marking unit 6 is installed on the first scale plate 3 at the lowermost end of the second scale plate 4. This marking unit 6 does not have a marking function, but can limit the movement of the second scale plate 4. In order to further improve the limiting effect, a marking unit 6 can also be installed on the back of the second scale plate 4 on the first scale plate 3.
[0028] As a preferred embodiment of the present application, the diameter of the movable gasket 8 is greater than the width of the scale groove 5. On the one hand, the movable gasket can serve as a reference for reading the scale, and on the other hand, the diameter of the movable gasket 8 can increase the limiting effect and ensure that the movable gasket 8 does not come out of the scale groove 5 when sliding in the scale groove 5.
[0029] As a preferred embodiment of the present application, a roller 11 housing 10 is provided below the horizontal bottom plate 1, and a roller 11 is rotatably connected inside the roller 11 housing 10. The technical scheme of the present application can more conveniently move and adjust the position of the auxiliary tool during use by providing a roller 11 housing 10 below the horizontal bottom plate 1 and a roller 11 rotatably connected inside the roller 11 housing 10. The provision of the roller 11 improves the flexibility and operational convenience of the overall tool, reducing the labor intensity of the operator. Specifically, the design of the roller 11 housing 10 can be diverse, for example, it can be made of metal material to ensure its strength and durability. The roller 11 can be made of wear-resistant material to prolong its service life. The rotational connection between the roller 11 and the roller 11 housing 10 can be achieved by a bearing to ensure smoothness and stability of rolling.
[0030] In a specific embodiment of the above-mentioned embodiment, a horizontal shaft 12 is provided outside the roller 11 housing 10, and an arc-shaped ring body 13 is rotatably connected to the horizontal shaft 12. After the arc-shaped ring body 13 is rotated, it is screwed into the gap between the roller 11 and the roller 11 housing, clamping the roller 11 to prevent it from moving.
[0031] As a preferred embodiment of the present application, a fixing washer 14 is arranged between the bolt 9 and the scale groove 5, and the fixing washer 14 is in an integral structure with the bolt 9 shaft 7. By arranging the fixing washer 14 between the bolt 9 and the scale groove 5, and making the fixing washer 14 and the bolt 9 shaft 7 in an integral structure, when in use, the bolt 9 shaft 7 is passed through the scale groove 5 from below the second scale plate 4 or the first scale plate 3, which can protect the back of the scale plate, and the fixing washer 14 and the scale plate are tightened against the bolt 9, which can also effectively prevent the labeling unit 6 from being deviated, and improve the positioning accuracy.
[0032] The use method of the present application is as follows:
[0033] When reinforcing steel bars are tied, multiple tools are used in the length direction of the box girder. Before tying, the labeling unit 6 is installed in the scale groove 5 according to the scale on the drawing in advance, then the tool is moved and attached to the reinforcing steel bar tying position, and the reinforcing steel bars are placed on the bolt 9 shaft 7 of the labeling unit 6, or are spaced at a certain distance, which can also play a role in indicating the spacing. In addition, when installing the labeling unit 6, a labeling unit 6 needs to be installed on the first scale plate 3 at the lowermost end of the second scale plate 4, which labeling unit 6 does not have a labeling function, but can limit the second scale plate 4 to prevent it from moving. In order to further improve the limiting effect, a labeling unit 6 can also be installed on the back of the second scale plate 4 on the first scale plate 3. After the installation of the labeling unit 6 is completed, the circular arc ring body 13 is inserted between the roller 11 and the roller 11 shell 10, and the roller 11 is fixed.
[0034] The places not mentioned in the present application can be realized by using or referring to the existing technology.
[0035] The above only describes the embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the scope of the claims of the present application.
Claims
1. A prefabricated box girder web reinforcement binding auxiliary tool, comprising a horizontal bottom plate and a vertical back plate intersecting into an L shape, characterized in that, a first scale plate is arranged in parallel above the horizontal bottom plate, an inclined second scale plate is arranged between the first scale plate and the vertical back plate, and the second scale plate is slidably connected to the first scale plate and the vertical back plate at both ends thereof; a scale slot is arranged through the middle line of the first scale plate and the second scale plate in the length direction, at least one side of the scale slot is marked with a scale, a plurality of marking units are arranged in the scale slot, the marking unit comprises a bolt shaft, a movable gasket connected to the bolt shaft in a sleeved manner above the scale slot, and a bolt screw-connected to the bolt shaft below the scale slot.
2. The prefabricated box girder web reinforcement binding auxiliary tool according to claim 1, characterized in that, the diameter of the movable gasket is greater than the width of the scale slot.
3. The prefabricated box girder web reinforcement binding auxiliary tool according to claim 1, characterized in that, a roller housing is arranged below the horizontal bottom plate, and a roller is rotatably connected inside the roller housing.
4. The prefabricated box girder web reinforcement binding auxiliary tool according to claim 3, characterized in that, a horizontal shaft is arranged outside the roller housing, and a circular arc ring body is rotatably connected to the horizontal shaft.
5. The prefabricated box girder web reinforcement binding auxiliary tool according to claim 1, characterized in that, a fixed gasket is arranged between the bolt and the scale slot, and the fixed gasket and the bolt shaft are in an integral structure.