Sealing steel plate welding positioning framework for steel box girder manhole well

Abstract

The utility model discloses a closed steel plate welding and positioning framework for a steel box girder manhole well, which comprises a closed welding plate structure, a steel plate positioning structure and a steel plate positioning structure, and is characterized in that the closed welding plate structure comprises a steel plate main body and an extension support; the steel plate main body can be embedded into a manhole wellhead in the same shape; the extension support extends and is fixedly connected to the outer side part of the steel plate main body; and the height-adjusting supporting structure is assembled on the extending support of the closed welding plate structure, and the height-adjusting supporting structure is correspondingly located on the outer edge part of the manhole mouth. The technical problem that in the prior art, the flatness is not high when a welding plate is sealed for a steel box girder manhole is solved.

Description

Technical Field

[0001] This utility model relates to the field of municipal bridge engineering technology, and more specifically, to a closed steel plate welding positioning structure for manholes of steel box girders. Background Technology

[0002] Currently, with the rapid development of steel structure bridges, steel box girder pedestrian bridges have been widely used in the construction of urban pedestrian bridges in recent years due to their advantages such as light weight, short construction period, mature construction technology, minimal impact on traffic during construction, saving project investment, and outstanding bending and torsional resistance.

[0003] In the existing technology, after the steel box girder is installed and welded on site, the manhole usually needs to be sealed with a welded plate. During the sealing process, due to factors such as manual operation of the sealing steel plate, it is easy for it to shift or tilt after positioning, resulting in low overall positioning accuracy and inability to guarantee the flatness of the top surface of the steel box girder after welding. In addition, it is difficult to detect the tilt in time and adjust it in real time when the sealing steel plate is manually positioned. Utility Model Content

[0004] Therefore, this utility model provides a closed steel plate welding positioning structure for manholes of steel box girders to solve the technical problem of low flatness when welding closed plates for manholes of steel box girders in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A closed steel plate welded positioning structure for manholes in steel box girders includes:

[0007] The enclosed welded plate structure includes a steel plate body and extended supports;

[0008] The steel plate body can be embedded in the manhole opening in the same shape;

[0009] The extension support is extended and fixedly installed on the outer side of the steel plate body;

[0010] An adjustable support structure is assembled on the extension support of the closed welded plate structure, and the adjustable support structure is located at the outer edge of the manhole opening. Based on the above technical solution, the present invention is further described as follows:

[0011] As a further embodiment of this utility model,

[0012] The main body of the steel plate is a rectangular steel plate, and several sets of extension supports are provided. The several sets of extension supports are respectively extended and fixed to the outer side of the rectangular steel plate main body, and the ends of the several sets of extension supports away from the steel plate main body are all located at the outer edge of the manhole opening.

[0013] As a further embodiment of this utility model,

[0014] The extension supports are provided in four sets, and the four sets of extension supports are respectively fixedly connected to the four corners of the rectangular steel plate body at a 45-degree angle.

[0015] As a further embodiment of this utility model,

[0016] The height adjustment support structure is configured as a leveling bolt support.

[0017] As a further embodiment of this utility model,

[0018] The leveling bolt support is provided in four sets, and the four sets of leveling bolt support are respectively screwed and assembled at the end of the four sets of extension supports away from the main body of the steel plate.

[0019] As a further embodiment of this utility model,

[0020] All four sets of leveling bolt supports are vertically assembled.

[0021] As a further aspect of this utility model, it also includes:

[0022] The alignment verification structure can be used to compare and verify the flatness between the main body of the steel plate and the outer edge of the manhole opening.

[0023] As a further embodiment of this utility model,

[0024] The alignment verification structure includes a limiting bracket, an alignment extension support plate, and a horizontal measuring scale.

[0025] The limiting bracket is provided in two sets, and the two sets of limiting brackets are respectively fixedly connected to the two sets of opposite extension brackets in a one-to-one manner; the aligning extension support plate is set as a horizontal plate, and the aligning extension support plate is vertically movable and assembled between the two sets of limiting brackets.

[0026] The horizontal measuring ruler is fixedly mounted on the top position of the alignment extension support plate.

[0027] As a further embodiment of this utility model,

[0028] The limiting bracket is configured as an L-shaped plate, and there are two sets of L-shaped limiting brackets. The two sets of L-shaped limiting brackets are fixedly connected to the two sets of opposite extension supports in a one-to-one correspondence.

[0029] As a further embodiment of this utility model,

[0030] Both sets of limiting brackets are located on the outer side of the steel plate body, and the alignment extension support plate is erected simultaneously on the top of the steel plate body and the outer edge of the manhole opening based on the two sets of limiting brackets.

[0031] This utility model has the following beneficial effects:

[0032] This architecture can effectively serve as the sealing plate for the manhole opening through the closed welded plate structure. At the same time, the flatness of the closed welded plate structure can be adjusted by using the leveling bolt support, thereby effectively improving the welding quality of the manhole sealing steel plate, ensuring the flatness of the top surface of the steel box girder, and enhancing the overall functionality and practicality. Attached Figure Description

[0033] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. The structures, proportions, sizes, etc., drawn in this specification are only used to complement the content disclosed in the specification, so that those skilled in the art can understand and read them. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0034] Figure 1 This is a schematic diagram of the overall structure of the closed steel plate welding positioning framework for the manhole of a steel box girder provided in Embodiment 1 of this utility model.

[0035] Figure 2 This is one of the application state structural diagrams of the closed steel plate welding positioning structure for the manhole of a steel box girder provided in Embodiment 1 of this utility model.

[0036] Figure 3 This is a schematic diagram of the overall structure of the closed steel plate welding positioning framework for the manhole of a steel box girder provided in Embodiment 2 of this utility model.

[0037] Figure 4 This is a schematic diagram of the application state structure of the closed steel plate welding positioning structure for the manhole of a steel box girder provided in Embodiment 2 of this utility model.

[0038] The attached diagram lists the components represented by each number as follows:

[0039] Enclosed welded plate structure 1: steel plate main body 11, extension support 12;

[0040] Leveling bolt support leg 2;

[0041] Alignment verification structure 3: limit holder 31, alignment extension support plate 32, horizontal measuring ruler 33;

[0042] Manhole opening a. Detailed Implementation

[0043] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0044] The terms "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity of description and are not intended to limit the scope of implementation of this utility model. Any changes or adjustments to their relative relationships, without substantially altering the technical content, shall also be considered within the scope of implementation of this utility model.

[0045] Example 1

[0046] like Figures 1 to 2 As shown, this embodiment of the invention provides a closed steel plate welding positioning structure for manholes in steel box girders, including a closed welded plate structure 1 and leveling bolt supports 2. The closed welded plate structure 1 effectively serves as the sealing plate for the manhole opening a, while the leveling bolt supports 2 allow for leveling the closed welded plate structure 1, thereby effectively improving the welding quality of the manhole sealing steel plate, ensuring the flatness of the top surface of the steel box girder, and enhancing the overall functionality and practicality. The specific settings are as follows:

[0047] Please refer to Figures 1 to 2 The enclosed welded plate structure 1 includes a steel plate body 11 and an extension support 12. The steel plate body 11 can be embedded in the manhole opening a in the same shape. Optionally, the steel plate body 11 can be set as, but is not limited to, a rectangular steel plate. The extension support 12 is provided in four sets. The four sets of extension supports 12 are respectively connected to the four corners of the rectangular steel plate body 11 at a 45-degree angle. This is to extend the support points of the steel plate body 11 corresponding to the four corners to the outer edge of the manhole opening a through the four sets of extension supports 12, and further assemble the leveling bolt support 2 to complete the auxiliary leveling.

[0048] The leveling bolt legs 2 are provided in four sets. The four sets of leveling bolt legs 2 are respectively screwed and assembled at the ends of the four sets of extension supports 12 away from the steel plate body 11. The four sets of leveling bolt legs 2 are all vertically assembled. After the steel plate body 11 is embedded in the manhole opening a, the height can be adjusted by the leveling bolt legs 2 to keep the steel plate body 11 and the outer edge of the manhole opening a flat, thereby ensuring the overall welding flatness of the steel box girder.

[0049] Example 2

[0050] In Example 2, the same symbols are used for the same structures as in Example 1, and the same descriptions are omitted. Example 2 is an improvement on Example 1. Please refer to [link / reference needed]. Figure 3 and Figure 4 The closed steel plate welding positioning structure also includes an alignment verification structure 3, used to compare the flatness between the steel plate body 11 and the outer edge of the manhole opening a. The specific settings are as follows:

[0051] The alignment verification structure 3 includes a limiting bracket 31, an alignment extension support plate 32, and a horizontal measuring scale 33. The limiting bracket 31 is an L-shaped plate, and two sets of L-shaped limiting brackets 31 are provided. The two sets of L-shaped limiting brackets 31 are respectively fixedly connected to two opposing sets of extension supports 12, and both sets of L-shaped limiting brackets 31 are located on the outer side of the steel plate body 11. The alignment extension support plate 32 is a horizontal plate, and the alignment extension support plate 32 is vertically movable and assembled on the two sets of L-shaped limiting brackets. Between the seats 31, the horizontal measuring ruler 33 is fixedly installed at the top position of the alignment extension support plate 32, so as to realize that the alignment extension support plate 32 is simultaneously erected at the top position of the outer edge of the steel plate body 11 and the manhole opening a. At this time, the bottom end face of the alignment extension support plate 32 is flush with the outer edge end face of the manhole opening a. Thus, the flatness of the steel plate body 11 can be compared by adjusting the top end face of the steel plate body 11 and the bottom end face of the alignment extension support plate 32 to make them flush. The contact state between the bottom end face of the alignment extension support plate 32 and the outer edge end face of the manhole opening a can be monitored in real time.

[0052] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A closed steel plate welded positioning structure for manholes in steel box girders, characterized in that, include: The enclosed welded plate structure includes a steel plate body and extended supports; The steel plate body can be embedded in the manhole opening in the same shape; The extension support is extended and fixedly installed on the outer side of the steel plate body; An adjustable support structure is installed on the extension support of the closed welded plate structure, and the adjustable support structure is located at the outer edge of the manhole opening.

2. The closed steel plate welding positioning structure for manholes in steel box girders according to claim 1, characterized in that, The main body of the steel plate is a rectangular steel plate, and several sets of extension supports are provided. The several sets of extension supports are respectively extended and fixed to the outer side of the rectangular steel plate main body, and the ends of the several sets of extension supports away from the steel plate main body are all located at the outer edge of the manhole opening.

3. The closed steel plate welding positioning structure for manholes in steel box girders according to claim 2, characterized in that, The extension supports are provided in four sets, and the four sets of extension supports are respectively fixedly connected to the four corners of the rectangular steel plate body at a 45-degree angle.

4. The closed steel plate welding positioning structure for manholes in steel box girders according to claim 2, characterized in that, The height adjustment support structure is configured as a leveling bolt support.

5. The closed steel plate welding positioning structure for manholes in steel box girders according to claim 4, characterized in that, The leveling bolt support is provided in four sets, and the four sets of leveling bolt support are respectively screwed and assembled at the end of the four sets of extension supports away from the main body of the steel plate.

6. The closed steel plate welding positioning structure for manholes in steel box girders according to claim 5, characterized in that, All four sets of leveling bolt supports are vertically assembled.

7. The closed steel plate welding positioning structure for manholes in steel box girders according to claim 3, characterized in that, Also includes: The alignment verification structure can be used to compare and verify the flatness between the main body of the steel plate and the outer edge of the manhole opening.

8. The closed steel plate welding positioning structure for manholes in steel box girders according to claim 7, characterized in that, The alignment verification structure includes a limiting bracket, an alignment extension support plate, and a horizontal measuring scale. The limiting bracket is provided in two sets, and the two sets of limiting brackets are fixedly connected to the two sets of opposite extension brackets in a one-to-one manner; the aligning extension support plate is set as a horizontal plate, and the aligning extension support plate is vertically movable and assembled between the two sets of limiting brackets. The horizontal measuring ruler is fixedly mounted on the top position of the alignment extension support plate.

9. The closed steel plate welding positioning structure for manholes in steel box girders according to claim 8, characterized in that, The limiting bracket is configured as an L-shaped plate, and there are two sets of L-shaped limiting brackets. The two sets of L-shaped limiting brackets are fixedly connected to the two sets of opposite extension supports in a one-to-one correspondence.

10. The closed steel plate welding positioning structure for manholes in steel box girders according to claim 9, characterized in that, Both sets of limiting brackets are located on the outer side of the steel plate body, and the alignment extension support plate is erected simultaneously on the top of the steel plate body and the outer edge of the manhole opening based on the two sets of limiting brackets.

Images