A retractable jetty

Abstract

The application discloses a telescopic corridor bridge and belongs to the technical field of horizontal riveting type frames. The telescopic corridor bridge comprises a first suspension frame and a second suspension frame which are oppositely arranged and respectively suspended on a rotating shaft of a fixed flange plate and a movable flange plate, and a pedal assembly arranged between the first suspension frame and the second suspension frame; the pedal assembly comprises a plurality of first type frames which are transversely and interval connected on the first suspension frame and a plurality of second type frames which are transversely and interval connected on the second suspension frame; the first suspension frame and the second suspension frame are staggered and overlapped in sequence, and an embedded component is slidingly embedded between adjacent first type frames and second type frames. The telescopic corridor bridge is divided into two parts which are overlapped with each other, so that the corridor bridge can be telescoped, the length of the corridor bridge is changed, the telescoping process is simple and rapid, meanwhile, the assembly and disassembly can be realized by sliding at the overlapped position, so that the disassembly of the whole corridor bridge is simple and rapid.

Description

Technical Field

[0001] The invention relates to the technical field of horizontal riveted profiles, and in particular to a retractable gallery bridge. Background Art

[0002] Large-diameter, circular-shaped riveted parts are used in the aerospace field. They require horizontal riveting jigs for assembly. Figure 1 As shown, the foundation is cast from reinforced concrete, followed by the laying of the ground rails. To ensure the stability of the ground rails, another layer of reinforced concrete is cast to bury the lower half of the ground rails. The ground rails are also connected to fixed and movable flanges via a base. The fixed flange is fixed to the foundation via the base, while the movable flange can slide along the ground rails with the base. When assembling a large-diameter cylindrical riveted component, four 1 / 4 rivet pieces are first placed between two flanges. The fixed beams at the edges of each 1 / 4 rivet piece are then riveted together on a horizontal riveting jig to assemble the large-diameter cylindrical riveted component. To facilitate operator access, conventional horizontal riveting jigs also feature a bridge. This traditional bridge extends into the flanges, occupying the inner ring space of the flanges, preventing the flanges from rotating. This, in turn, prevents the two flanges from interlocking and adjusting. Furthermore, the bridge length cannot be adjusted. When assembling large-diameter cylindrical riveted components of varying lengths, the traditional bridge will protrude from the flanges or be insufficiently long. Summary of the Invention

[0003] The object of the present invention is to provide a retractable gallery bridge to solve the problem that the length of the gallery bridge of the existing horizontal riveted frame cannot be adjusted.

[0004] The technical solution of the present invention to solve the above technical problems is as follows:

[0005] A retractable covered bridge comprises: a first suspension frame and a second suspension frame which are arranged opposite to each other and suspended on the rotating shafts of a fixed flange and a movable flange respectively, and a pedal assembly arranged between the first suspension frame and the second suspension frame;

[0006] The pedal assembly includes a plurality of first profiles that are laterally and spaced apart connected to the first suspension frame and a plurality of second profiles that are laterally and spaced apart connected to the second suspension frame; the first profiles and the second profiles are alternately overlapped in sequence, and an embedded component is slidably embedded between adjacent first profiles and second profiles.

[0007] The retractable covered bridge of the present invention is divided into two parts. One part is suspended on the rotating shaft of the fixed flange by a first suspension frame, and the other part is suspended on the movable flange by a second suspension frame. The two parts are respectively provided with a first frame and a second frame. The first frame and the second frame are sequentially staggered and overlapped. Adjacent first and second frames are connected by embedded components, so that the first and second frames can slide relative to each other after being connected, thereby increasing or decreasing the distance between the first and second suspension frames, making the covered bridge extendable and retractable. The entire extension and retraction process is simple and rapid. At the same time, because adjacent first and second frames are connected by embedded components, the first and second frames only need to be connected to the corresponding first and second suspension frames, making the overall assembly of the covered bridge simple and rapid.

[0008] Furthermore, both sides of the first and second frames are provided with embedding grooves, and both sides of the embedding component extend into the embedding grooves of the adjacent first and second frames, respectively.

[0009] Furthermore, the above-mentioned embedding groove is a T-shaped groove, and the cross-sections of both sides of the embedded component are T-shaped.

[0010] When the T-shaped embedding groove of the present invention cooperates with the T-shaped side surface of the embedding component, it can ensure that the first frame and the second frame only slide in the axial direction, avoid vertical misalignment between the first frame and the second frame, avoid jamming, and improve the smoothness of sliding.

[0011] Furthermore, between the adjacent first and second dies, the embedded component is fixedly connected to one of the dies, and the embedded component is slidably fitted with the other dies.

[0012] The present invention fixes the embedded component to one of the profiles, thereby preventing the embedded component and the profile from derailing and improving the integrity and safety of the covered bridge.

[0013] Furthermore, a first support frame and a second support frame are respectively provided on one side of the above-mentioned first suspension frame and the second suspension frame; the first support frame and the second support frame have the same structure and are arranged opposite to each other, and the top surfaces of the first support frame and the second support frame are stepped from both sides to the middle, and each step of the first support frame is respectively connected to a number of first type frames, and each step of the second support frame is respectively connected to a number of second type frames.

[0014] The top surfaces of the first support frame and the second support frame of the present invention are stepped from both sides to the middle, so that the corridor bridge has multiple working surfaces of different heights, which is convenient for operators to stand on different working surfaces to operate. Moreover, this distribution method is compatible with large-diameter cylindrical riveted parts and is suitable for the assembly of large-diameter cylindrical riveted parts.

[0015] Furthermore, the first molded frame and the second molded frame on the steps corresponding to the first supporting frame and the second supporting frame are flush.

[0016] Furthermore, anti-sinking plates are laid on the first and second profiles on the steps corresponding to the first and second support frames.

[0017] Furthermore, the side edges of the first suspension bracket and the second suspension bracket are provided with multiple support blocks, and the bottoms of the first suspension bracket and the second suspension bracket are provided with clamping blocks; the sides of the first support bracket and the second support bracket are provided with limit blocks supported on the corresponding support blocks, and the bottoms of the first support bracket and the second support bracket are provided with clamping slots clamped on the clamping blocks.

[0018] The first support frame and the second support frame of the present invention are directly placed on the first suspension frame and the second suspension frame, so that the limit block contacts the support block and the card slot cooperates with the card block. No additional fixation (such as bolt fixation, etc.) is required, which reduces the assembly difficulty of the corridor bridge, reduces the assembly time, and improves the assembly efficiency.

[0019] Furthermore, the support block is provided with a baffle for preventing the corresponding limiting block from falling from the support block.

[0020] The present invention has the following beneficial effects:

[0021] (1) The retractable corridor bridge of the present invention is divided into two parts. The first and second frames of the two parts are staggered and overlapped in sequence, and the adjacent first and second frames are connected by embedded components, so that the first and second frames can slide against each other after being connected, thereby increasing or decreasing the distance between the first suspension frame and the second suspension frame, so that the corridor bridge can be extended and retracted. The entire extension and retraction process is simple and rapid. At the same time, since the adjacent first and second frames are connected by embedded components, the first and second frames only need to be connected to the corresponding first and second suspension frames, and the overall assembly of the corridor bridge is simple and rapid.

[0022] (2) When the T-shaped embedding groove of the present invention and the T-shaped side surface of the embedding member cooperate, it can ensure that the first frame and the second frame slide only in the axial direction, avoid vertical misalignment between the first frame and the second frame, avoid jamming, and improve the smoothness of sliding.

[0023] (3) The top surfaces of the first support frame and the second support frame of the present invention are stepped from both sides to the middle, so that the corridor bridge has multiple working surfaces of different heights, which is convenient for operators to stand on different working surfaces to operate. Moreover, this distribution method is compatible with large-diameter cylindrical riveted parts and is suitable for the assembly of large-diameter cylindrical riveted parts.

[0024] (4) The first support frame and the second support frame of the present invention are directly placed on the first suspension frame and the second suspension frame, so that the limit block contacts the support block and the card slot cooperates with the card block. No additional fixation (such as bolt fixation, etc.) is required, which reduces the assembly difficulty of the corridor bridge, reduces the assembly time, and improves the assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural diagram of a traditional horizontal riveting jig;

[0026] Figure 2 Schematic diagram of the structure of the retractable covered bridge of the present invention;

[0027] Figure 3 Schematic diagram of the connection structure between the first suspension bracket and the first support bracket of the present invention;

[0028] Figure 4 is a schematic structural diagram of the first suspension bracket of the present invention;

[0029] Figure 5 It is a structural schematic diagram of the first supporting frame of the present invention;

[0030] Figure 6 It is a schematic structural diagram of the adjacent first and second jigs of the present invention.

[0031] In the figure: 41-first suspension frame; 42-second suspension frame; 43-pedal assembly; 411-first support frame; 412-support block; 413-block; 414-limiting block; 415-slot; 416-baffle; 421-second support frame; 431-first frame; 432-second frame; 433-embedded component; 434-embedded slot. DETAILED DESCRIPTION

[0032] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0033] Please refer to Figure 2 This embodiment provides a retractable covered bridge consisting of two parts, suspended from the rotating shafts of the fixed and movable flanges of a horizontal riveted frame. The two parts can move closer or further away from each other, allowing the entire covered bridge to expand and contract, adapting to changes in the distance between the fixed and movable flanges caused by the sliding of the movable flange. Compared to existing covered bridges, the retractable covered bridge of this embodiment does not pass through the flanges, allowing the flanges to be connected to the base via a rotating shaft. This allows the two flanges to be adjusted (rotated) synchronously through the cooperation of the two rotating shafts.

[0034] The retractable covered bridge of this embodiment includes: a first suspension frame 41 and a second suspension frame 42 of identical structure but in opposite directions, and a pedal assembly 43 disposed between the first and second suspension frames 41, 42. The pedal assembly 43 forms a work surface for an operator to stand on. The pedal assembly 43 is composed of two parts, each fixedly connected to the first and second suspension frames 41, 42, respectively. Simultaneously, the two parts can slide relative to each other, thereby increasing or decreasing the distance between the first and second suspension frames 41, 42, and thus achieving the overall extension and retraction of the covered bridge.

[0035] Please refer to Figures 3 to 5 A first support frame 411 and a second support frame 421 are connected to one side of the first suspension frame 41 and the second suspension frame 42 near the bottom, respectively. The first support frame 411 and the second support frame 421 have the same structure but are oriented in opposite directions. The first support frame 411 and the second support frame 421 are arranged opposite each other. In this embodiment, the first suspension frame 41 and the second suspension frame 42 have the same structure but are oriented in opposite directions. The first support frame 411 and the second support frame 421 have the same structure but are oriented in opposite directions. Therefore, this embodiment only describes the structure of the first suspension frame 41.

[0036] The top of the first suspension bracket 41 is provided with a through hole for being mounted on the rotating shaft of the flange of the horizontal riveting frame, and the first suspension bracket 41 can rotate on the rotating shaft. When the flange is adjusted, the position of the pedal assembly 43 will not change significantly. The edge of the first suspension bracket 41 connected to the first support bracket 411 is provided with multiple support blocks 412. Specifically, the support blocks 412 are arranged on the vertical side edges and bottom edge of the first suspension bracket 41. At the same time, the support blocks 412 on both sides of the first suspension bracket 41 correspond to each other. The bottom of the first suspension bracket 41 is provided with a clamping block 413, and the extension direction of the clamping block 413 is consistent with the extension direction of the support block 412. The support block 412 and the clamping block 413 are used to support the first support bracket 411. During assembly, the first support bracket 411 can be directly placed on the support block 412 and the clamping block 413, making the disassembly and assembly process simple and quick.

[0037] In order to prevent the first support frame 411 from falling off the support block 412 and the clamping block 413, in this embodiment, a baffle 416 is provided on the support block 412. The baffle 416 is arranged opposite to the first suspension frame 41, and the first support frame 411 is clamped between the baffle 416 and the first suspension frame 41.

[0038] The top surface of the first support frame 411 is stepped from both sides to the center, forming multiple working surfaces of varying heights when connected to the pedal assembly 43. The sides of the first support frame 411 are provided with stoppers 414 corresponding to the support blocks 412. The stoppers 414 are placed on the corresponding support blocks 412 and blocked by baffles 416. The bottom of the first support frame 411 is provided with a slot 415 corresponding to the stoppers 413, allowing the first support frame 411 to engage with the first suspension frame 41.

[0039] Please refer to Figure 2 and Figure 6 The pedal assembly 43 includes a plurality of first frames 431 and a plurality of second frames 432. Each step of the first support frame 411 is connected to a plurality of first frames 431, and each step of the second support frame 421 is connected to a plurality of second frames 432. In the same step of the first support frame 411, the first frames 431 are arranged horizontally at intervals, and in the same step of the second support frame 421, the second frames 432 are arranged horizontally at intervals. In the corresponding steps of the first support frame 411 and the second support frame 421, the first frames 431 and the second frames 432 are flush. At the same time, one end of the first frame 431 and the second frame 432 are respectively connected to the corresponding first support frame 411 and the second support frame 421 by bolts, and the other ends of the first frame 431 and the second frame 432 are staggered and overlapped in sequence and connected by embedded components 433, so that the first frame 431 and the second frame 432 can slide in the extension direction.

[0040] The top surfaces of the first support frame 411 and the second support frame 421 of this embodiment are stepped from both sides to the middle, so that the corridor bridge has multiple working surfaces of different heights, which facilitates operators to stand on different working surfaces to operate. Moreover, this distribution method is compatible with large-diameter cylindrical riveted parts and is suitable for assembling large-diameter cylindrical riveted parts. At the same time, the first support frame 411 and the second support frame 421 of this embodiment are directly placed on the first suspension frame 41 and the second suspension frame 42, so that the limit block 414 contacts the support block 412 and the clamping groove 415 cooperates with the clamping block 413. No additional fixing is required, which reduces the difficulty of assembling and disassembling the corridor bridge, reduces the assembly and disassembly time, and improves the assembly and disassembly efficiency.

[0041] Both sides of the first and second profiles 431, 432 are provided with insertion slots 434, extending in the same direction as the first and second profiles 431, 432. Insertion members 433 extend into the insertion slots 434 of the adjacent first and second profiles 431, 432, respectively. These insertion members 433 serve not only to connect the first and second profiles 431, 432 but also to guide the sliding movement between them.

[0042] To ensure good connectivity between the embedded component 433 and the first and second frames 431 and 432, in this embodiment, the embedded grooves 434 are T-shaped, so that the cross-sections of the first and second frames 431 and 432 are I-shaped. In this case, the cross-sections of both sides of the embedded component 433 are T-shaped. In other embodiments of the present invention, the embedded grooves 434 may be provided on all four sides of the first and second frames 431 and 432.

[0043] In order to prevent the embedded component 433 from being separated from the first frame 431 or the second frame 432 due to uncertain movement, thereby causing the adjacent first frame 431 and the second frame 432 to separate, in this embodiment, between the adjacent first frame 431 and the second frame 432, the embedded component 433 is fixedly connected to one of the frames by a hexagon socket screw, and the embedded component 433 slides with the other frame. At this time, within the set length variation range, the embedded component 433 will not be separated from the first frame 431 or the second frame 432.

[0044] In this embodiment, anti-sinking plates (not shown) are laid on the first and second frames 431 and 432 on the steps corresponding to the first support frame 411 and the second support frame 421 to prevent operators from falling into the gap. The size of the anti-sinking plates is adapted to the length of the corridor during operation.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A retractable covered bridge, characterized in that: include: A first suspension frame (41) and a second suspension frame (42) are arranged opposite to each other and are suspended on the rotating shafts of the fixed flange and the movable flange respectively, and a pedal assembly (43) is arranged between the first suspension frame (41) and the second suspension frame (42); The pedal assembly (43) comprises a plurality of first profiles (431) laterally and spaced apart connected to the first suspension frame (41) and a plurality of second profiles (432) laterally and spaced apart connected to the second suspension frame (42); the first profiles (431) and the second profiles (432) are alternately overlapped in sequence, and an embedded component (433) is slidably embedded between adjacent first profiles (431) and second profiles (432).

2. The retractable covered bridge according to claim 1, characterized in that: Embedding grooves (434) are respectively provided on both sides of the first frame (431) and the second frame (432), and both sides of the embedded component (433) extend into the embedding grooves (434) of the adjacent first frame (431) and the second frame (432).

3. The retractable covered bridge according to claim 2, characterized in that: The embedding groove (434) is a T-shaped groove, and the cross-sections of both sides of the embedding component (433) are T-shaped.

4. The retractable covered bridge according to claim 1, characterized in that: Between the adjacent first shaped frames (431) and the second shaped frames (432), the embedded component (433) is fixedly connected to one of the shaped frames, and the embedded component (433) is slidably matched with the other shaped frame.

5. The retractable covered bridge according to any one of claims 1 to 4, characterized in that: A first support frame (411) and a second support frame (421) are respectively provided on one side of the first suspension frame (41) and the second suspension frame (42); the first support frame (411) and the second support frame (421) have the same structure and are arranged opposite to each other; the top surfaces of the first support frame (411) and the second support frame (421) are stepped from both sides to the middle; each step of the first support frame (411) is respectively connected to a plurality of the first shaped frames (431), and each step of the second support frame (421) is respectively connected to a plurality of the second shaped frames (432).

6. The retractable covered bridge according to claim 5, characterized in that: The first shaped frame (431) and the second shaped frame (432) on the steps corresponding to the first supporting frame (411) and the second supporting frame (421) are flush.

7. The retractable covered bridge according to claim 6, characterized in that: Anti-sinking plates are laid on the first profile frame (431) and the second profile frame (432) on the steps corresponding to the first support frame (411) and the second support frame (421).

8. The retractable covered bridge according to claim 5, characterized in that: The side edges of the first suspension frame (41) and the second suspension frame (42) are both provided with a plurality of support blocks (412), and the bottoms of the first suspension frame (41) and the second suspension frame (42) are both provided with a clamping block (413); the sides of the first support frame (411) and the second support frame (421) are both provided with a limit block (414) supported on the corresponding support block (412), and the bottoms of the first support frame (411) and the second support frame (421) are both provided with a clamping slot (415) clamped on the clamping block (413).

9. The retractable covered bridge according to claim 8, characterized in that: The support block (412) is provided with a baffle (416) for preventing the corresponding limiting block (414) from falling off the support block (412).

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