Sliding device and steel truss beam construction bearing platform

Abstract

The utility model discloses a sliding device and steel truss construction bearing platform, wherein the sliding device, include: first mobile subassembly, second mobile subassembly and fixed component, first mobile subassembly includes support frame and guide wheel, and first mobile subassembly is used for connecting bearing platform. Fixed component can be detachable, can be connected in support frame, and fixed component includes the clamping portion, and the clamping portion is used for buckling in steel truss. Second mobile subassembly can be detachable, can be connected in support frame, and second mobile subassembly includes the rolling wheel, and second mobile subassembly is used for sliding connection steel truss, and when second mobile subassembly slides, the clamping portion is separated from steel truss, can keep with the close distance of steel truss's correspondence, forms potential anti -falling insurance structure. First mobile subassembly and second mobile subassembly can be adapted to longitudinal and transverse displacement demand respectively, can drive bearing platform along longitudinal and transverse relative steel truss and slide, satisfies the displacement demand of different construction position.

Description

Technical Field

[0001] This utility model relates to the field of steel bridge truss construction technology, and in particular to a sliding device and a load-bearing platform for steel truss construction with a sliding device. Background Technology

[0002] A steel bridge truss installation platform is a specialized high-altitude work platform designed for the installation of large steel truss bridges. It is used for hoisting, splicing, and welding of steel bridge trusses. The platform uses high-strength steel as its load-bearing frame. During construction, most operations are completed below the bridge deck, providing a safe and stable operating space for personnel and equipment. In existing technologies, the load-bearing platform typically uses a hanging basket to weld the cantilever arms to the chords and bridge deck. This method restricts platform movement, limits workspace, and makes transporting the platform time-consuming and labor-intensive. Furthermore, the welding positioning process affects the surface properties of the bridge structure and significantly impacts construction safety and progress. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a sliding device, which has the advantages of convenient operation and high flexibility.

[0004] This utility model also proposes a load-bearing platform for the construction of steel truss beams with the above-mentioned sliding device.

[0005] The sliding device according to this utility model includes: A first moving component, comprising a support frame and guide wheels, is used to connect to a carrying platform and drive the carrying platform to move longitudinally. A fixing component is detachably connected to the support frame, the fixing component including a snap-fit ​​portion for snapping onto the steel truss beam; The second moving component is detachably connected to the support frame. The second moving component includes rolling wheels and is slidably connected to the steel truss. The second moving component is used to drive the bearing platform to slide laterally. When the second moving component slides, the locking part disengages from the steel truss.

[0006] The sliding device according to this utility model has at least the following beneficial effects: the first moving component and the second moving component can respectively adapt to displacement requirements in different directions. For example, the first moving component can move longitudinally, and the second moving component can move laterally. The first moving component is connected to the bearing platform through guide wheels, and the bearing platform can be slid along a preset direction by means of the rolling of the guide wheels, thereby realizing the longitudinal position adjustment of the bearing platform. Both the fixed component and the second moving component are detachable and can be connected to the support frame. When the fixed component is installed, the locking part can be firmly locked to the steel truss, providing reliable support for the bearing platform through rigid connection and ensuring stability during construction; when switching to the second moving component, the rolling wheel forms a sliding engagement with the steel truss, which can drive the bearing platform to slide laterally relative to the steel truss, meeting the displacement requirements of different construction positions. Meanwhile, when the second moving component is installed on the support frame, the locking part of the fixed component is suspended in the air. This avoids structural interference with the steel truss beam to ensure smooth movement, while maintaining close correspondence with the steel truss beam, forming a potential fall protection structure. Thus, while flexibly switching between construction states, it also takes into account operational stability and ease of relocation.

[0007] According to some embodiments of the present invention, the sliding device includes a locking part, the support frame is connected to a first fastener, the locking part is snapped onto one side of the steel truss beam, the first fastener abuts against the other side of the steel truss beam, and the first fastener is used to drive the locking part to press and fix it to the steel truss beam.

[0008] According to some embodiments of the present invention, the sliding device includes an extension plate that extends along the axial direction of the guide wheel, and the first fastener is connected to the extension plate.

[0009] According to some embodiments of the present invention, the sliding device includes a first connecting plate and two opposing second connecting plates. The second connecting plates are vertically arranged, and the first connecting plate is horizontally arranged. The first connecting plate is used to connect the second moving component, and the second connecting plate is used to connect the fixed component.

[0010] According to some embodiments of the present invention, the sliding device includes a fixing component and a second fastener. The locking part is rotatably connected to the support frame through the connecting component, and the locking part is fixed to the first moving component by the second fastener.

[0011] According to some embodiments of the present invention, the sliding device has four locking parts, two locking parts form a group, and two groups of locking parts are symmetrically arranged on both sides of the support frame.

[0012] According to some embodiments of the present invention, the sliding device has two rolling wheels, which are symmetrically arranged on both sides of the support frame.

[0013] According to some embodiments of the present invention, the sliding device has two guide wheels, which are symmetrically arranged along the center line of the support frame.

[0014] According to some embodiments of the present invention, the sliding device has a positioning block detachably mounted on the upper flange of the bearing platform, the positioning block being used to restrict the movement of the first moving component.

[0015] The steel truss construction support platform according to this utility model includes the sliding device described in this utility model.

[0016] The steel truss construction support platform according to this utility model has at least the following beneficial effects: By connecting the sliding device, the adaptability and safety of steel truss construction are improved. With the help of the first and second moving components, the support platform can be moved flexibly in multiple dimensions, allowing connection to different construction points without repeated disassembly and reassembly, significantly reducing construction auxiliary time. The fixed and moving components can be switched, forming a rigid fixation through the synergistic action of the locking part and the first fastener, ensuring the stability of the support platform during operation, while also achieving efficient displacement through the sliding cooperation of the rolling wheels, meeting dynamic construction needs. Simultaneously, the suspended safety structure of the locking part during movement, the balanced support formed by the symmetrically distributed locking parts and rolling wheels, and the limiting function of the positioning blocks, combined with the compact and detachable overall structure, effectively reduce the risks of high-altitude operations, facilitate transportation and maintenance, and significantly improve the efficiency and reliability of steel truss construction.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a front view of the sliding device according to an embodiment of the present invention; Figure 2 for Figure 1 Side view of the sliding device shown; Figure 3 for Figure 1 A top view of the sliding device is shown; Figure 4 This is a front view of the second moving device of the sliding device according to an embodiment of the present invention; Figure 5for Figure 4 Side view of the sliding device shown; Figure 6 This is a side view of the platform in an embodiment of the present utility model; Figure 7 This is a side view of the carrying platform according to another embodiment of the present invention.

[0019] Explanation of icon numbers: First moving component 100; support frame 110; extension plate 111; first connecting plate 112; second connecting plate 113; guide wheel 120; first fastener 130; Fixing component 200; snap-fit ​​part 210; connector 220; second fastener 230; Second moving component 300; Rolling wheel 310; Positioning block 400; Platform capacity 500; 600 steel truss girder. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0021] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0023] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0024] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0025] The steel bridge truss installation platform uses high-strength steel as its load-bearing frame. During construction, most operations are completed below the bridge deck, providing a safe and stable operating space for personnel and equipment. In existing technologies, the load-bearing platform is usually constructed by welding the cantilever arms to the chords and bridge deck in the form of a hanging basket. The platform cannot be moved, the working space is limited, and transporting the load-bearing platform back and forth is time-consuming and labor-intensive. The welding positioning required affects the surface performance of the bridge structure and also greatly impacts construction safety and progress.

[0026] Therefore, such as Figures 1 to 5 As shown, the sliding device proposed in this utility model includes: a first moving component 100, a fixed component 200, and a second moving component 300. The first moving component 100 includes a support frame 110 and guide wheels 120. The support frame 110 serves as the main structure and is used to connect the carrying platform 500. The guide wheels 120 are installed at the bottom of the support frame 110 and can cooperate with the track or guide structure on the carrying platform 500 to allow the carrying platform 500 to slide along a preset direction. The support frame 110 is typically made of Q235B steel to ensure overall rigidity and load-bearing capacity, facilitating installation and adjustment in high-altitude environments. The guide wheels 120 are symmetrically arranged on both sides of the centerline of the support frame 110 to ensure smooth movement and reduce off-center loading or jamming. The first moving component 100 can push the carrying platform 500 to move laterally along the steel truss beam 600. The second moving component 300 can push the carrying platform 500 to move longitudinally along the steel truss beam 600, quickly positioning it to the required work point, avoiding repeated disassembly and reassembly, and greatly improving construction efficiency.

[0027] In some embodiments of this utility model, such as Figures 1 to 5As shown, the fixing component 200 is detachably connected to the support frame 110 and mainly includes a snap-fit ​​part 210, a connector 220, and a second fastener 230. The snap-fit ​​part 210 is typically a hook or a clamping plate, which can be directly snapped onto the flange of the steel truss 600 to form a rigid connection. The connector 220 is a pin, which allows the snap-fit ​​part 210 to be rotatably mounted on the support frame 110, facilitating adaptation to different angles of the steel truss 600 cross-section, and also facilitating disassembly and installation. The second fastener 230 is used to lock the snap-fit ​​part 210 to prevent it from loosening under stress. The support frame 110 is also equipped with a first fastener 130. When the snap-fit ​​part 210 is snapped onto one side of the steel truss beam 600, the first fastener 130 can press against the steel truss beam 600 from the other side. By adjusting the thread, the steel truss beam 600 is tightened, so that the snap-fit ​​part 210 and the steel truss beam 600 fit tightly together, increasing the friction of the contact surface, so that the bearing platform 500 has stability during operation, effectively resists construction loads and external disturbances, and ensures the safety of personnel and equipment.

[0028] In some embodiments of this utility model, such as Figures 1 to 5 As shown, the second moving component 300 is detachably connected to the support frame 110. The second moving component 300 can move longitudinally along the steel truss 600, and the direction of movement of the second moving component 300 is perpendicular to the direction of movement of the first moving component 100. The second moving component 300 includes a roller 310, the axis of which is perpendicular to the guide wheel 120, allowing the bearing platform 500 to move longitudinally along the steel truss 600. When the second moving component 300 is installed in place, the roller 310 contacts the flange surface of the steel truss 600, supporting the sliding of the entire device. At this time, the locking part 210 of the fixing component 200 is in a suspended state, neither interfering with the movement nor hindering the movement, while maintaining a close correspondence with the steel truss 600, forming a fall protection mechanism. The rollers 310 are symmetrically arranged on both sides of the support frame 110 to ensure even load distribution and smooth movement. During construction, if the platform position needs to be adjusted, simply disassemble the fixed component 200 and install the second moving component 300 to achieve rapid relocation without the need for lifting equipment or other auxiliary tools, thus saving a significant amount of time and manpower.

[0029] In some embodiments of this utility model, such as Figures 1 to 5As shown, the support frame 110 includes a horizontally arranged first connecting plate 112 and a vertically arranged second connecting plate 113. The first connecting plate 112 is used to install the second moving component 300, and the second connecting plate 113 is used to connect the fixed component 200. The first connecting plate 112 and the second connecting plate 113 cooperate with the second moving component 300 and the fixed component 200 respectively, making the force transmission more direct and the structure more reasonable. In addition, the support frame 110 is also provided with an extension plate 111, which extends along the axis of the guide wheel 120. The first fastener 130 is installed on the extension plate 111, which facilitates the adjustment of the clamping force from the side to accommodate steel truss beams 600 of different thicknesses. The design of the first fastener 130 also enhances the overall structural stability of the support frame 110 and prevents deformation during fastening or movement.

[0030] In some embodiments of this utility model, such as Figures 1 to 5 As shown, four locking parts 210 are typically provided, arranged symmetrically in two groups on both sides of the support frame 110. The two locking parts 210 in each group can jointly clamp the same part of the steel truss beam 600, forming a double safety net. Even if one side accidentally loosens, the other side can still provide effective support. This symmetrical distribution not only improves the reliability of the fixation but also makes the device applicable to various steel truss beam 600 cross-sections, enhancing its versatility. The rolling wheels 310 and guide wheels 120 are also arranged symmetrically. The two rolling wheels 310 are positioned on both sides of the support frame 110, and the two guide wheels 120 are symmetrical along the centerline, ensuring that no eccentric force is generated during movement, thus preventing the platform from tilting or swaying.

[0031] In some embodiments of this utility model, such as Figures 1 to 5 As shown, a positioning block 400 is installed on the upper flange of the support platform 500. The positioning block 400 is detachable and can be installed on top of the support platform 500 to limit the movement range of the first moving component 100. The positioning block 400 is typically tightened against the upper flange of the steel beam of the support platform 500 by adjusting the bolts on the positioning block 400, thus preventing the first moving component 100 from moving. The anti-slip device is simple and reliable, requiring no electric or hydraulic drive, and is particularly suitable for high-altitude working environments, preventing accidental slippage of the platform and improving construction accuracy and safety.

[0032] The steel truss 600 construction support platform 500 according to an embodiment of the present invention includes a sliding device according to an embodiment of the present invention.

[0033] The steel truss 600 construction support platform 500 according to an embodiment of the present invention improves the adaptability and safety of steel truss 600 construction by employing the sliding device and connecting sliding device of the present invention. With the help of the first moving component 100 and the second moving component 300, the support platform 500 can be moved flexibly in multiple dimensions, allowing connection to different construction points without repeated disassembly and reassembly, significantly reducing construction auxiliary time. The fixed component 200 and the moving component can be used interchangeably, forming a rigid fixation through the synergistic action of the snap-fit ​​part 210 and the first fastener 130 to ensure the stability of the support platform 500 during operation, while also achieving efficient displacement through the sliding cooperation of the rolling wheels 310 to meet dynamic construction needs. Meanwhile, the suspension safety structure of the locking part 210 during movement, the balanced support formed by the symmetrically distributed locking parts 210 and the rolling wheels 310, and the limiting of the positioning block 400, make the overall structure reasonable, safe, reliable and detachable, effectively reducing the risk of high-altitude operations, facilitating transportation and maintenance, and significantly improving the efficiency and reliability of the steel truss beam 600 construction.

[0034] Reference Figure 6 and Figure 7 In this embodiment of the invention, the supporting platform 500 for the construction of the steel truss 600 integrates the aforementioned sliding device. It typically consists of a steel frame plate, a working panel, guardrails, etc. The sliding device is installed at the bottom of the upper flange plate of the steel beam of the supporting platform 500 and at the top of the lower flange of the steel truss 600, connecting to the steel truss 600. During construction, personnel can choose between fixed or movable states as needed: when performing high-precision operations such as welding and splicing, the fixed component 200 is used to firmly fix the platform to the steel truss 600; when it is necessary to move the work point, the second movable component 300 is switched, allowing the platform to slide along the steel truss 600 to a new position. Throughout the process, the locking part 210 is suspended during movement, preventing wear on the surface of the steel truss 600 and serving as a fall protection in emergencies, enhancing overall safety. The platform frame of the supporting platform 500 adopts a modular design, allowing for size adjustments according to the bridge span. The sliding devices can also be installed in batches, enabling multi-point synchronous movement or fixing. During construction, the platform can cover a large area under the bridge deck, providing a stable working space for personnel. Equipment and materials can also be placed on the platform, reducing the number of times they need to be hoisted at height.

[0035] Reference Figure 6 and Figure 7In some application scenarios, the bearing platform 500 is suspended from the steel truss beam 600. The support frame 110 is rotatably connected to the locking part 210 via the connector 220. The locking part 210 is locked onto the top surface of the lower flange plate of the steel truss beam 600. The support frame 110 is fixed to the locking part 210 by the second fastener 230, and then the locking part 210 is pressed and fixed to the steel truss beam 600 by the first fastener 130, thus completing the fixation of the bearing platform 500. The bearing platform 500 is pushed so that the top of the bearing platform 500 moves linearly along the circumference of the guide wheel 120. After reaching the target position, the positioning block 400 is installed to restrict the movement of the bearing platform 500. A manual hoist is suspended from the steel truss beam 600 and connected to the supporting platform 500. The first fastener 130 is loosened, and the supporting platform 500 is raised a certain distance using the manual hoist. The second moving component 300 is fixed to the connecting piece 220 using the third fastener. The manual hoist is released, causing the guide wheel 120 to fall onto the steel truss beam 600. At this time, the locking part 210 is suspended in the air. The manual hoist is then pulled to move the supporting platform 500 laterally along the rolling wheel 310. After moving laterally to the target position, the supporting platform 500 is raised using the manual hoist. The second moving component 300 is removed, and the manual hoist is released, causing the fixing component 200 to fall and be fixed by the first fixing piece.

[0036] Other components and operations of the bearing platform 500 for the construction of the steel truss 600 according to the embodiments of this utility model are known to those skilled in the art and will not be described in detail here.

[0037] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A sliding device, characterized in that, include: A first moving component, comprising a support frame and guide wheels, is used to connect to a carrying platform and drive the carrying platform to move longitudinally. A fixing component is detachably connected to the support frame, the fixing component including a snap-fit ​​portion for snapping onto the steel truss beam; The second moving component is detachably connected to the support frame. The second moving component includes rolling wheels and is slidably connected to the steel truss. The second moving component is used to drive the bearing platform to move laterally. When the second moving component slides, the locking part disengages from the steel truss.

2. The sliding device according to claim 1, characterized in that: The fixing component includes a snap-fit ​​part, the support frame is connected to a first fastener, the snap-fit ​​part is snapped onto one side of the steel truss beam, the first fastener abuts against the other side of the steel truss beam, and the first fastener is used to drive the snap-fit ​​part to press and fix it to the steel truss beam.

3. The sliding device according to claim 2, characterized in that: The support frame includes an extension plate that extends along the axial direction of the guide wheel, and the first fastener is connected to the extension plate.

4. The sliding device according to claim 1, characterized in that: The support frame includes a first connecting plate and two opposing second connecting plates. The second connecting plates are vertically arranged, and the first connecting plate is horizontally arranged. The first connecting plate is used to connect the second moving component, and the second connecting plates are used to connect the fixed component.

5. The sliding device according to claim 1, characterized in that: The fixing component includes a connector and a second fastener. The snap-fit ​​part is rotatably connected to the support frame via the connector, and the snap-fit ​​part is fixed to the first moving component via the second fastener.

6. The sliding device according to claim 1, characterized in that: There are four locking parts, and two locking parts form a group. The two groups of locking parts are symmetrically arranged on both sides of the support frame.

7. The sliding device according to claim 1, characterized in that: There are two rollers, which are symmetrically arranged on both sides of the support frame.

8. The sliding device according to claim 1 or 4, characterized in that: There are two guide wheels, which are symmetrically arranged along the center line of the support frame.

9. The sliding device according to claim 1, characterized in that: The upper flange of the carrying platform is detachably fitted with a positioning block, which is used to restrict the movement of the first moving component.

10. A load-bearing platform for steel truss construction, characterized in that: Includes the sliding device as described in any one of claims 1 to 9.

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