A portable cover plate laying structure suitable for between inverted arch trestle bridge deck platforms

Abstract

The utility model relates to a portable cover plate laying structure suitable for between inverted-arch trestle bridge floor platform, including upper and lower setting cover plate and support pole group, support pole group includes sleeve, sleeve is connected with connecting rod group through screw thread structure, and connecting rod group includes connecting rod, and connecting rod one end connects lead screw, and connecting rod other end hinged platform connecting seat, platform connecting seat is composed of connecting plate and connecting lug plate, connecting plate middle part is opened connecting through -hole, and connecting plate both sides connecting lug plate, and the positioning mechanism is equipped between cover plate and support pole group, the utility model discloses through support pole group can adjust connecting rod length and adapt to the bridge floor platform spacing of different width, can be folded simultaneously when pouring concrete, and do not affect the size of operation space.

Description

Technical Field

[0001] This utility model belongs to the technical field of tunnel construction equipment, and relates to a portable cover plate laying structure suitable for bridge deck platforms of arch bridges. Background Technology

[0002] During the construction of the tunnel invert arch, the temporary steel plate laying in the hollow area of ​​the traditional trestle bridge deck platform 3 mainly relies on manual handling and hoisting, which results in low efficiency and significant safety hazards. In existing technologies, the temporary steel plates are mostly fixed by simple placement or hinged welding. The former is prone to displacement and falling, while the latter is time-consuming and labor-intensive to disassemble and assemble. Especially in the high humidity and dusty tunnel environment, and under the repeated crushing and vibration of construction vehicles, the cover plates are prone to deformation and displacement, reducing construction efficiency and adding unnecessary procedures to the construction process. Summary of the Invention

[0003] The purpose of this utility model is to provide a portable cover plate laying structure suitable for bridge deck platforms of arch bridges, which can solve the above-mentioned problems and speed up construction efficiency.

[0004] According to the technical solution provided by this utility model: a portable cover plate laying structure suitable for bridge deck platforms of an arch bridge includes upper and lower cover plates and a support rod assembly; the support rod assembly includes a sleeve, which is connected to a connecting rod assembly through a threaded structure; the connecting rod assembly includes a connecting rod, one end of which is connected to a lead screw, and the other end of which is hinged to a platform connecting seat; the platform connecting seat consists of a connecting plate and connecting ear plates; a connecting through hole is opened in the middle of the connecting plate, and ear plates are connected to both sides of the connecting plate; a positioning mechanism is provided between the cover plate and the support rod assembly.

[0005] As a further improvement of this utility model, the ear plate is triangular, the bottom of the ear plate is the ear plate connecting edge, the ear plate connecting edge is connected to the connecting plate by welding process, and the upper part of the ear plate is provided with ear plate pin hole.

[0006] As a further improvement of this utility model, the top of the ear plate is arc-shaped.

[0007] As a further improvement of this utility model, the connecting rod is made of a rectangular hollow tube, and a blocking plate is installed at one end of the connecting rod, which is directly connected to the lead screw.

[0008] As a further improvement of this utility model, the sleeve is provided with a threaded hole, and the lead screw is engaged with the threaded hole.

[0009] As a further improvement of this utility model, a cover plate covers the support rod assembly, and connecting seat clearance holes are evenly distributed on the cover plate.

[0010] As a further improvement of this utility model, handles are symmetrically installed on the cover plate.

[0011] As a further improvement of this utility model, the positioning mechanism includes a matching connecting rod slot, a cover plate side assembly, and a positioning insert plate; the connecting rod slot is a blind slot, including a first connecting rod slot and a second connecting rod slot, the first connecting rod slot and the second connecting rod slot being located on the outer periphery of the connecting rod; the cover plate side assembly includes a cover plate folded edge and a cover plate stop edge, the cover plate folded edge and the cover plate stop edge being located on the side of the cover plate.

[0012] The positive and progressive effects of this utility model are as follows: 1. This utility model can adjust the length of the connecting rods through the support rod assembly to adapt to the spacing of bridge deck platforms of different widths. At the same time, it can be folded during concrete pouring without affecting the size of the working space.

[0013] 2. This utility model uses a modular cover plate design to facilitate installation and disassembly, saving unnecessary steps during installation and removal and speeding up construction efficiency. Attached Figure Description

[0014] Figure 1 This is a front view of the support rod assembly of this utility model; Figure 2 This is a top view of the support rod assembly of this utility model; Figure 3 This is a front view of the cover plate of this utility model; Figure 4 This is a top view of the cover plate of this utility model; Figure 5 This is a front view of the cover plate and support rod assembly of this utility model during installation; Figure 6 This is a top view of the cover plate and support rod assembly of this utility model during installation. Detailed Implementation

[0015] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0016] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0017] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this utility model described herein. Furthermore, terms such as "comprising" and "having" mean that in addition to those already listed in "comprising" and "having," other unlisted contents may also be included; for example, a process, method, system, product, or device may include a series of steps or units, not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products, or devices.

[0018] Due to the angle of the drawing, some parts may not be drawn, but their positions and connections can be understood from the text descriptions.

[0019] like Figure 5 As shown, this utility model is a portable cover plate laying structure suitable for bridge deck platforms 3 of an arch bridge, including cover plates 2 and support rod groups 1 arranged at the top and bottom.

[0020] like Figure 1 As shown, the support rod assembly 1 includes a sleeve 16, which is connected to the connecting rod assembly via a threaded structure. The connecting rod assembly includes a connecting rod 14, one end of which is connected to a lead screw 15, and the other end of which is hinged to a platform connecting seat.

[0021] The platform connecting seat consists of a connecting plate 11 and connecting lugs 12. A connecting through hole 11-1 is opened in the middle of the connecting plate 11, which, along with bolts, connects the platform connecting seat to the bridge deck platform 3. Lugs 12 are connected to both sides of the connecting plate 11. The lugs 12 are triangular in shape, with their bottom forming a connecting edge. This connecting edge is connected to the connecting plate 11 via welding. A lug pin hole is provided at the top of the lugs 12, which, along with a pin, is hinged to the connecting rod 14.

[0022] The top of the ear plate 12 is rounded to avoid stress concentration and extend the service life of the platform connector.

[0023] While ensuring strength, the connecting rod 14 is made as lightweight as possible to reduce the labor intensity of the operator. In this embodiment, the connecting rod 14 is a rectangular hollow tube, and a blocking plate is installed at one end of the connecting rod 14, which is directly connected to the lead screw 15.

[0024] The sleeve 16 has a threaded hole, and the lead screw 15 mates with the threaded hole. To rotate the sleeve 16, the connecting rod assemblies on both sides can be simultaneously contracted or expanded. The threads of the lead screws 15 on both sides are opposite, and the sleeve 16 has two sections of threads, one on the left and one on the right, which are respectively adapted to the threads of the lead screws 15 on both sides.

[0025] like Figures 3-4 As shown, the cover plate 2 covers the support rod assembly 1, and the cover plate 2 has evenly distributed connecting seat clearance holes 22. In this embodiment, the three sets of support rod assemblies 1 are arranged in parallel, with the cover plate 2 located above them. The cover plate 2 has symmetrical connecting seat clearance holes 22 in the middle and on both sides.

[0026] To facilitate the handling of cover plate 2, handles 21 are symmetrically installed on cover plate 2.

[0027] A positioning mechanism is provided between the cover plate 2 and the support rod assembly 1 to prevent the cover plate 2 from sliding off the support rod assembly 1. The positioning mechanism includes a matching connecting rod slot, a cover plate side assembly, and a positioning insert plate 4. Figure 2 As shown, the connecting rod slot is a blind slot, including a first connecting rod slot 14-1 and a second connecting rod slot 14-2, which are located on the outer periphery of the connecting rod 14. The cover plate side assembly includes a cover plate flange 23 and a cover plate stop 24, which are located on the side of the cover plate 2. The cover plate flange 23 is inserted into either the first connecting rod slot 14-1 or the second connecting rod slot 14-2, and the positioning plate 4 is inserted into either the second connecting rod slot 14-2 or the first connecting rod slot 14-1 and is located outside the cover plate stop 24.

[0028] Specifically, the first connecting rod slot 14-1 and the second connecting rod slot 14-2 on the two connecting rods 14 are symmetrically arranged along the center line. The cover plate flanges 23 and cover plate retaining edges 24 on both sides of the cover plate 2 are symmetrically arranged. The left cover plate flange 23 of the cover plate 2 is inserted into the first connecting rod slot 14-1 on the left connecting rod 14; the second connecting rod slot 14-2 corresponds to the cover plate retaining edge 24, and the positioning plate 4 is inserted into the second connecting rod slot 14-2 and located outside the cover plate retaining edge 24. The first connecting rod slot 14-1 on the right connecting rod 14 corresponds to the right cover plate retaining edge 24 of the cover plate 2, and the positioning plate 4 is inserted into the first connecting rod slot 14-1 and located outside the cover plate retaining edge 24; the cover plate flange 23 is inserted into the second connecting rod slot 14-2. This can prevent stress concentration when the cover plate 2 shakes.

[0029] The working process of this utility model is as follows: like Figure 6 As shown, after the bridge deck platform 3 of the arch bridge is installed, the connecting plate 11 is bolted to the side of the bridge deck platform 3, and the support rod assembly 1 is connected between the two bridge deck platforms 3. At the same time, the telescopic sleeve 16 is adjusted to fix the connecting rod 14. Then, the cover plate handle 21 can be lifted manually, and the cover plate 2 is laid on top of the telescopic rod assembly 1. The positioning insert 4 is placed into the first connecting rod slot 14-1, the second connecting rod slot 14-2, and the cover plate folded edge 23. The positioning insert 4 is located outside the cover plate retaining edge 24. When concrete pouring and construction work are required, the cover plate 2 can be quickly lifted and the support rod assembly 1 can be retracted to speed up the construction progress.

[0030] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of this utility model, and the utility model is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of this utility model, and these modifications and improvements are also considered to be within the protection scope of this utility model.

Claims

1. A portable cover plate laying structure suitable for use between bridge deck platforms of an arched trestle bridge, characterized in that, It includes a cover plate (2) and a support rod assembly (1) set at the top and bottom; the support rod assembly (1) includes a sleeve (16), which is connected to the connecting rod assembly through a threaded structure. The connecting rod assembly includes a connecting rod (14), one end of which is connected to a lead screw (15), and the other end of which is hinged to a platform connecting seat; the platform connecting seat is composed of a connecting plate (11) and a connecting ear plate (12); a connecting through hole (11-1) is opened in the middle of the connecting plate (11), and ear plates (12) are connected on both sides of the connecting plate (11); a positioning mechanism is provided between the cover plate (2) and the support rod assembly (1).

2. The portable cover plate laying structure for use between bridge deck platforms of an arched trestle bridge as described in claim 1, characterized in that, The ear plate (12) is triangular. The bottom of the ear plate (12) is the ear plate connecting edge. The ear plate connecting edge is connected to the connecting plate (11) by welding process. The ear plate (12) has an ear plate pin hole on the upper part.

3. The portable cover plate laying structure for use between bridge deck platforms of an arched trestle bridge as described in claim 1, characterized in that, The top of the ear plate (12) is rounded.

4. The portable cover plate laying structure for use between bridge deck platforms of an arched trestle bridge as described in claim 1, characterized in that, The connecting rod (14) is made of a rectangular hollow tube. A blocking plate is installed at one end of the connecting rod (14), and the blocking plate is directly connected to the lead screw (15).

5. The portable cover plate laying structure for use between bridge deck platforms of an arched trestle bridge as described in claim 1, characterized in that, The sleeve (16) has a threaded hole, and the lead screw (15) is engaged with the threaded hole.

6. The portable cover plate laying structure for use between bridge deck platforms of an arched trestle bridge as described in claim 1, characterized in that, The cover plate (2) covers the support rod assembly (1), and the cover plate (2) has evenly distributed connecting seat clearance holes (22).

7. The portable cover plate laying structure for use between bridge deck platforms of an arched trestle bridge as described in claim 1, characterized in that, Handles (21) are symmetrically installed on the cover plate (2).

8. The portable cover plate laying structure for use between bridge deck platforms of an arched trestle bridge as described in claim 1, characterized in that, The positioning mechanism includes a matching connecting rod slot, a cover plate side assembly, and a positioning insert (4); the connecting rod slot is a blind slot, including a first connecting rod slot (14-1) and a second connecting rod slot (14-2); the first connecting rod slot (14-1) and the second connecting rod slot (14-2) are located on the outer periphery of the connecting rod (14); the cover plate side assembly includes a cover plate folded edge (23) and a cover plate stop edge (24), and the cover plate folded edge (23) and the cover plate stop edge (24) are located on the side of the cover plate (2).

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