Scaffold board mechanism for bridge welding

By designing an adjustable scaffolding mechanism for bridge welding, the problem of length mismatch caused by changes in the spacing between the web plates of adjacent steel beams was solved, thereby improving the safety and construction efficiency of high-altitude operations and making it suitable for various construction scenarios.

CN223482252UActive Publication Date: 2025-10-28CHINA RAILWAY TENTH GRP FOURTH ENG CO LTD +1
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Patent Information

Application Number
CN202422067992.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-26
Publication Date
2025-10-28
Estimated Expiration
2034-08-26

AI Technical Summary

Technical Problem

The existing scaffolding mechanism for bridge welding cannot adapt to changes in the spacing between the web plates of two adjacent sets of steel beams, resulting in length mismatch and unusability.

Method used

Design a device comprising a first plate and a second plate, which, through the combination of a plug-in part, an abutment end, a positioning element, and a pull-out groove, enables flexible adjustment and fixation of the plate spacing, ensuring that the main body of the device matches the web of the steel beam.

Benefits of technology

It enables flexible adjustment based on the spacing of the steel beam web, ensuring that the main body of the device matches the steel beam web, improving the safety and construction efficiency of high-altitude operations. The structure is simple and convenient, and it is suitable for large-area construction scenarios.

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Abstract

The utility model relates to the technical field of building construction facilities, and discloses a scaffold board mechanism for bridge welding. The device specifically comprises a device body, the device body comprises a first plate body and a second plate body, and the first plate body and the second plate body are each provided with a butt joint end and an abutting end; inserting parts are arranged at the two ends, in the width direction, of the butt joint end of the first plate body, inserting grooves are formed in the inserting parts in the length direction of the first plate body, and pulling grooves are jointly formed between the adjacent inserting grooves and used for allowing the butt joint end of the second plate body to be connected in an inserted mode so that the distance between the butt joint end of the first plate body and the butt joint end of the second plate body can be adjusted; a positioning piece is arranged between the inserting part and the second plate body and is used for locking the first plate body and the second plate body; the total length formed by the first plate body and the second plate body is flexibly adjusted by increasing or reducing the overlapping length of the first plate body and the second plate body.
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Description

Technical Field

[0001] This utility model relates to the field of building construction facilities technology, and more specifically, to a scaffolding mechanism for bridge welding. Background Technology

[0002] Welding steel beams for elevated bridges requires the erection of specialized work platforms or the use of aerial work platforms, which places high demands on the site and makes installation extremely inconvenient. During construction, based on the structural characteristics of the composite steel plate beams, the bottom of the beams typically uses I-shaped webs. Traditional scaffolding boards are laid on the inside of the I-shaped flanges at the bottom of the beams, with a length slightly less than the distance between the webs of two adjacent sets of steel beams in the composite steel plate beam. These boards are laid fully along the longitudinal direction of the composite steel plate beams, which can solve the problem of safe high-altitude welding operations for steel beams.

[0003] However, due to factors such as the design plane alignment, road widening, and ramps, the spacing between the webs of two adjacent sets of steel beams will vary within a certain range. This can easily lead to a mismatch between the length of the scaffold plank and the spacing of the steel beam webs, resulting in the scaffold plank becoming unusable. Utility Model Content

[0004] This utility model provides a scaffolding mechanism for bridge welding, which can overcome some or all the defects of the prior art.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution, which includes a device body, the device body including a first plate and a second plate, both the first plate and the second plate having a butt end and an abutting end, the abutting ends of the first plate and the second plate being used to abut against the inner side of adjacent flange plates respectively;

[0006] Both ends of the first plate have insertion portions along the width direction. Insertion slots are formed in the insertion portions along the length direction of the first plate. Adjacent insertion slots together form a pull-out slot, which is used for the insertion of the second plate to achieve the adjustment of the distance between the abutting end of the first plate and the abutting end of the second plate. A positioning element is provided between the insertion portion and the second plate, which is used for locking the first plate and the second plate.

[0007] With the inclusion of a first plate, a second plate, a butt joint, an insertion part, an abutment end, an insertion groove, a positioning element, and a pull-out groove in this invention, before high-altitude operations, construction workers first insert the butt joint end of the second plate into the pull-out groove of the first plate. Then, they visually estimate the distance between the webs of adjacent composite beams and use the positioning element to adjust and fix the total length of the first and second plates stacked together. Next, the locked device body is laid onto the adjacent flange plate. If the total length of the device body does not match the distance between the webs of adjacent composite beams, the total length of the device body can be readjusted until it ensures that the lower ends of the two abutment ends of the first and second plates have a sufficiently large contact area with the flange plate surface, and that the ends of the two abutment ends are flush with the steel plate. With the web of the composite beam firmly secured and the main body of the device free from slippage, the above steps are repeated to fully lay the device along the longitudinal direction of the web flanges, allowing construction workers to begin high-altitude operations. Compared to existing technologies, this invention can flexibly adjust the total length of the first and second plates by increasing or decreasing the overlap length of the first and second plates according to the spacing between the webs of two adjacent sets of steel beams, achieving the goal of matching the total length with the distance between the webs of adjacent composite beams. Secondly, bridge high-altitude operations require a large number of scaffold boards to follow the construction. This invention has a simple structure, is easy to install and dismantle, and is convenient to transport. Furthermore, the length adjustment of this invention has a wide range of applications, suitable for large-scale on-site construction scenarios, and can also be recycled in different construction scenarios.

[0008] In this utility model, the plug-in part has a top plate and a bottom plate arranged opposite to each other. The opposite edges of the top plate and the bottom plate are connected by a side plate, and the other opposite edges of the top plate and the bottom plate are respectively connected by an upper plate and a lower plate; the top plate, the bottom plate, the side plate, the upper plate and the lower plate together form the plug-in groove.

[0009] like Figure 3 As shown, through the arrangement of the top plate, bottom plate, side plate, upper plate and lower plate in this utility model, the cooperation of the top plate and bottom plate can limit the docking end of the second plate in the height direction, and the side plate, upper plate and lower plate can limit the docking end of the second plate in the horizontal direction, thereby ensuring that the first plate and the second plate only have displacement along the length direction of the first plate and preventing misalignment.

[0010] In this utility model, the top of the pull-out groove is provided with an anti-slip structure. The anti-slip structure has an anti-slip groove that is recessed into the pull-out groove. The lower edges of the two upper plates of the plug-in part are connected by a panel. The panel and the two upper plates together form the anti-slip groove.

[0011] With the anti-slip groove and panel in this utility model, construction workers can step into the anti-slip groove when working. The anti-slip groove can limit the movement of the construction workers' feet in the direction of travel, thus better ensuring the safety of construction workers working at height.

[0012] In this invention, the top plate and the bottom plate are uniformly provided with a plurality of first pin holes along the length direction of the first plate body for cooperating with the positioning component, and the mating end of the second plate body is provided with a plurality of second pin holes corresponding to the first pin holes; the positioning component is a pin.

[0013] With the arrangement of the first pin hole, the second pin hole, and the pin in this utility model, construction personnel can insert multiple pins into the first pin hole and the second pin hole after adjusting the total length of the main body of the device to prevent relative displacement between the first plate and the second plate in the length direction of the first plate, thus achieving better fixation of the first plate and the second plate.

[0014] In this invention, multiple reinforcing ribs are uniformly provided along the width direction of the mating end and the abutting end. The reinforcing ribs can further improve the bending resistance of the first plate and the second plate.

[0015] In this invention, multiple hollow holes are evenly provided on the first plate and the second plate, which can ensure that the weight is reduced while the anti-slip property is increased. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a first plate in Embodiment 1;

[0017] Figure 2 This is a schematic diagram of the structure of a second plate in Example 1;

[0018] Figure 3 This is a cross-sectional view of a first plate body according to Example 1;

[0019] Figure 4 This is an assembly cross-sectional view of the first plate and the second plate in Embodiment 1;

[0020] Figure 5 This is an assembly appearance diagram of the first plate and the second plate in Example 1. Detailed Implementation

[0021] To further understand the content of this utility model, a detailed description of the utility model is provided in conjunction with the embodiments. It should be understood that the embodiments are merely illustrative and not limiting of the utility model.

[0022] Example 1

[0023] like Figure 1-5 As shown, this embodiment provides a scaffolding mechanism for bridge welding, which includes a device body. The device body includes a first plate 101 and a second plate 201. Both the first plate 101 and the second plate 201 have a butt end and an abutment end 104. The abutment ends 104 of the first plate 101 and the second plate 201 are respectively used to abut against the inner side of adjacent flange plates.

[0024] Both ends of the first plate 101 along the width direction have insertion portions 102. Insertion slots 306 are formed in the insertion portions 102 along the length direction of the first plate 101. Adjacent insertion slots 306 together form a pull-out slot 308. The pull-out slot 308 is used for the insertion of the second plate 201 to achieve the adjustment of the distance between the abutting end 104 of the first plate 101 and the abutting end 104 of the second plate 201. A positioning member is provided between the insertion portions 102 and the second plate 201. The positioning member is used for locking between the first plate 101 and the second plate 201.

[0025] With the arrangement of the first plate 101, second plate 201, docking end, insertion part 102, abutting end 104, insertion groove 306, positioning element, and pull-out groove 308 in this embodiment, before high-altitude operations, construction personnel first insert the docking end of the second plate 201 into the pull-out groove 308 of the first plate 101, then visually estimate the distance between the webs of adjacent composite beams, and use the positioning element to adjust and fix the total length of the first plate 101 and the second plate 201 stacked together. Then, the locked device body is laid on the adjacent flange plate. If the total length of the device body does not match the distance between the webs of adjacent composite beams, the total length of the device body can be readjusted until it can ensure that the lower end faces of the two abutting ends 104 of the first plate 101 and the second plate 201 have a sufficiently large contact area with the flange plate surface, and the ends of the two abutting ends 104 are... With the head firmly abutting against the web of the steel plate composite beam and the main body of the device remaining stable, the above steps are repeated to fully lay the device along the longitudinal direction of the web flanges, allowing construction workers to begin high-altitude operations. Compared to existing technologies, this embodiment can flexibly adjust the total length of the first plate 101 and the second plate 201 by increasing or decreasing the overlap length of the first plate 101 and the second plate 201 according to the spacing between the webs of two adjacent sets of steel beams. This ensures that the total length matches the distance between the webs of adjacent composite beams, achieving the goal of matching the total length with the distance between the webs of adjacent composite beams. Secondly, a large number of scaffold boards are required for high-altitude bridge operations. The structure of this embodiment is simple, easy to install and dismantle, and convenient to transport. Furthermore, the length adjustment of this embodiment has a wide range of applications, suitable for large-scale on-site construction scenarios, and can be recycled in different construction scenarios.

[0026] In this embodiment, the insertion part 102 has a top plate 301 and a bottom plate 302 disposed opposite to each other. The opposite edges of the top plate 301 and the bottom plate 302 are connected by a side plate 303, and the other opposite edges of the top plate 301 and the bottom plate 302 are respectively connected to an upper plate 304 and a lower plate 305. The top plate 301, the bottom plate 302, the side plate 303, the upper plate 304 and the lower plate 305 together form the insertion groove 306.

[0027] In this embodiment, the insertion part is a C-shaped steel. C-shaped steel is easy to obtain, has good structural assembly matching, good pressure stability, and high structural strength. The first plate 101 and the second plate 201 can be welded together based on two C-shaped steels and a panel 307, or they can be integrally formed.

[0028] like Figure 3 As shown, through the arrangement of the top plate 301, bottom plate 302, side plate 303, upper plate 304 and lower plate 305 in this embodiment, the cooperation of the top plate 301 and the bottom plate 302 can limit the docking end of the second plate 201 in the height direction, and the side plate 303, upper plate 304 and lower plate 305 can limit the docking end of the second plate 201 in the horizontal direction, thereby ensuring that the first plate 101 and the second plate 201 only have displacement along the length direction of the first plate 101 and preventing misalignment.

[0029] In this embodiment, the top of the pull-out groove 308 is provided with an anti-slip structure. The anti-slip structure has an anti-slip groove that is recessed into the pull-out groove 308. The lower edges of the upper plates 304 of the two plug-in parts 102 are connected by a panel 307. The panel 307 and the two upper plates 304 together form the anti-slip groove.

[0030] With the anti-slip groove and panel 307 in this embodiment, construction workers can step into the anti-slip groove when working. The anti-slip groove can limit the movement of the construction workers' feet in the direction of travel, thereby better ensuring the safety of construction workers working at height.

[0031] In this embodiment, the top plate 301 and the bottom plate 302 are uniformly provided with a plurality of first pin holes 103 for cooperating with the positioning component along the length direction of the first plate 101, and the docking end of the second plate 201 is provided with a plurality of second pin holes 202 corresponding to the first pin holes 103; the positioning component is a pin.

[0032] With the arrangement of the first pin hole 103, the second pin hole 202, and the pin in this embodiment, the construction personnel can insert multiple pins into the first pin hole 103 and the second pin hole 202 after adjusting the total length of the main body of the device to prevent the first plate 101 and the second plate 201 from having relative displacement in the length direction of the first plate 101, thus achieving better fixation of the first plate 101 and the second plate 201.

[0033] In this embodiment, a plurality of reinforcing ribs 501 are uniformly provided along the width direction of the docking end and the abutment end 104. The reinforcing ribs 501 can further improve the bending resistance of the first plate 101 and the second plate 201.

[0034] In this embodiment, the first plate 101 and the second plate 201 are uniformly provided with a plurality of hollow holes 105, which can ensure that the weight is reduced while the anti-slip performance is increased.

[0035] It is readily understood that those skilled in the art can combine, split, or reorganize the embodiments provided in this application to obtain other embodiments, all of which do not exceed the protection scope of this application.

[0036] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the embodiments shown are only part of the embodiments of the present invention. The actual structure is not limited to this. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A scaffolding mechanism for bridge welding, characterized in that, The device includes a main body, which includes a first plate (101) and a second plate (201). Both the first plate (101) and the second plate (201) have a mating end and an abutting end (104). The abutting ends (104) of the first plate (101) and the second plate (201) are respectively used to abut against the inner side of adjacent flange plates. The first plate (101) has insertion portions (102) at both ends of its mating end along the width direction. Insertion slots (306) are formed in the insertion portions (102) along the length direction of the first plate (101). Adjacent insertion slots (306) together form a pull-out slot (308). The pull-out slot (308) is used for the mating end of the second plate (201) to be inserted, so as to realize the adjustment of the distance between the abutting end (104) of the first plate (101) and the abutting end (104) of the second plate (201). A positioning member is provided between the insertion portion (102) and the second plate (201). The positioning member is used for locking between the first plate (101) and the second plate (201). The top of the pull-out groove (308) is provided with an anti-slip structure, which has an anti-slip groove recessed into the pull-out groove (308).

2. The bridge welding scaffolding mechanism according to claim 1, characterized in that: The insertion part (102) has a top plate (301) and a bottom plate (302) arranged opposite to each other. The opposite edges of the top plate (301) and the bottom plate (302) are connected by a side plate (303). The other opposite edges of the top plate (301) and the bottom plate (302) are respectively connected to an upper plate (304) and a lower plate (305). The top plate (301), the bottom plate (302), the side plate (303), the upper plate (304) and the lower plate (305) together form the insertion groove (306).

3. The bridge welding scaffolding mechanism according to claim 1, characterized in that: The lower edges of the upper plates (304) of the two plug-in parts (102) are connected by a panel (307), and the panel (307) and the two upper plates (304) together form the anti-slip groove.

4. The bridge welding scaffolding mechanism according to claim 1, characterized in that: The top plate (301) and the bottom plate (302) are provided with a plurality of first pin holes (103) for cooperating with positioning parts along the length direction of the first plate (101), and the second plate (201) is provided with a plurality of second pin holes (202) corresponding to the first pin holes (103) on the mating end.

5. A bridge welding scaffolding mechanism according to claim 1, characterized in that: Multiple reinforcing ribs (501) are uniformly provided along the width direction of the docking end and the abutment end (104).

6. A bridge welding scaffolding mechanism according to claim 1, characterized in that: Multiple perforated holes (105) are evenly provided on the first plate (101) and the second plate (201).

7. A bridge welding scaffolding mechanism according to claim 1, characterized in that: The positioning component is a pin (401).