Temporary steel bridge for subway construction

Abstract

The utility model relates to the related technical field of temporary steel bridges for iron construction, in particular to a temporary steel bridge for subway construction, which comprises a bridge floor main body, a panel supporting piece and a supporting cross rod, and the panel supporting piece comprises a supporting frame, a tail end locking piece and an adjusting assembly. According to the temporary steel bridge for subway construction, efficient and convenient bridge floor supporting is achieved through cooperative work of the bridge floor body, the panel supporting pieces and the supporting transverse rods. The panel supporting piece is composed of a plurality of supporting frames formed by hinging, and can be unfolded through the adjusting assembly according to actual requirements so as to support the bridge deck body. And when not in use, the folding chair can be folded and stored through the adjusting assembly, so that the occupied space is greatly reduced, and the transportation is convenient. And the tail end locking piece of the panel supporting piece locks the supporting frame, so that the stability of the structure is further enhanced, the stability of the bridge floor in the subway construction process is ensured, and the construction efficiency and safety are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of temporary steel bridges for subway construction, and in particular to a temporary steel bridge for subway construction. Background Technology

[0002] A temporary steel bridge for subway construction is a type of temporary bridge structure, mainly used to ensure smooth traffic flow above the construction area during subway station construction, while also facilitating construction.

[0003] The related technology, with announcement number CN221320628U, describes a temporary steel bridge for subway construction. It includes a bridge deck body, with piers fixedly installed at the bottom. Bases are installed on the top surface of the bridge deck body near the center of both sides, and support seats are fixedly installed on the top surface of the bridge deck body near the four corners. Connecting components engage with grooves, and the bridge deck body is supported and reinforced by gaskets and a base plate, increasing the stability of the device, facilitating installation, and improving worker efficiency. The corresponding grooves at both ends of the bridge deck body facilitate continuous laying, increasing the device's applicability. Furthermore, the pre-installed guardrails on the bridge deck body, adjusted and reinforced by bases and bolts, solve the problem of inconvenient installation on construction sites, increasing user efficiency. Limiting posts at both ends of the bridge deck control vehicle passage, further enhancing the device's applicability.

[0004] The aforementioned steel temporary bridge utilizes the bridge deck and piers to form a temporary bridge structure. During construction, prefabricated support seats must be made according to the actual pier length to ensure the bridge deck can be stably supported. However, while this construction method enhances the stability of the bridge deck and increases the reliability and safety of the device, the need to customize support seats according to site conditions not only increases the demand for manpower but also leads to a decrease in installation efficiency. Utility Model Content

[0005] This invention solves the problems in related technologies and proposes a temporary steel bridge for subway construction. The panel support is composed of multiple hinged support frames, which can be unfolded according to actual needs through adjustment components to support the main body of the bridge deck. When not in use, it can also be folded and stored using adjustment components, significantly reducing the space occupied and facilitating transportation. The locking component at the end of the panel support locks the support frame, further enhancing the stability of the structure, ensuring the stability of the bridge deck during subway construction, and improving construction efficiency and safety.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: a temporary steel bridge for subway construction, including a bridge deck body, a panel support member set on the lower end face of the bridge deck body, and support crossbars set on both sides of the other end of the panel support member.

[0007] The panel support includes several support frames that are hinged together, a tail locking member located at the tail end of the support frame, and an adjustment component located at the front end of the support frame.

[0008] By adopting the above technical solution, efficient and convenient bridge deck support is achieved through the coordinated work of the bridge deck main body, panel supports, and supporting crossbars. The panel supports consist of multiple hinged support frames, which can be unfolded according to actual needs via adjustable components to support the bridge deck main body; when not in use, they can be folded and stored using the adjustable components, significantly reducing space occupation and facilitating transportation. The supporting crossbars play a stabilizing role, ensuring the safety and stability of the entire structure during construction. The locking components at the ends of the panel supports further enhance the structural stability by locking the support frames, ensuring the stability of the bridge deck during subway construction and improving construction efficiency and safety.

[0009] As a preferred embodiment, the support frame includes a first connecting rod, a second connecting rod hinged to the first connecting rod, a third connecting rod hinged to the other end of the first connecting rod, a fourth connecting rod hinged to the other end of the second connecting rod, and a connecting shaft for hinged to the other ends of the third connecting rod and the fourth connecting rod. Connecting shafts are also provided at the hinge points of the first connecting rod, the second connecting rod, and the third connecting rod and the fourth connecting rod.

[0010] By adopting the above technical solution, since the first link, second link, third link and fourth link are connected by connecting pivots, it is easy to unfold the support frame and easy to fold and store the support frame.

[0011] As a preferred embodiment, the adjustment assembly includes an adjustment frame, an adjustment screw connected to the adjustment frame, an adjustment sleeve disposed at the connection point between the adjustment screw and the adjustment frame, a movable slide frame connected to the end of the adjustment screw away from the adjustment frame, and a mounting plate fixedly disposed at the other end of the adjustment frame. The mounting plate is hinged to the connection point between the first connecting rod and the second connecting rod.

[0012] By adopting the above technical solution, it is easier to connect the support frame and the adjustment frame through the mounting frame, thereby facilitating the unfolding and folding of the support frame by the adjustment assembly. The end of the movable sliding frame away from the adjustment screw is connected to the hinge of the third and fourth links. When the adjustment screw is rotated, due to the complementary effect between it and the adjustment screw sleeve, it is easy to push the third and fourth links to move relative to the first and second links, thereby facilitating the unfolding of the support frame.

[0013] As a preferred embodiment, the system also includes adjustable feet disposed on the lower end face of each connecting shaft. One end of the adjustable foot is fixedly connected to the connecting shaft, and the other end of the adjustable foot is fixedly connected to the support crossbar by a fastener.

[0014] By adopting the above technical solution, adjustable feet are provided on the lower end face of each connecting shaft. One end of the adjustable foot is connected to the connecting shaft by a fixed connection, and the other end is connected to the support crossbar by a fastener. This design not only facilitates the adjustment of the distance between the connecting shaft and the support crossbar, but also allows for flexible adjustment of the height and position of the support frame, enhances the support stability of the panel support for the main body of the bridge deck, simplifies the installation and adjustment process, and gives the main body of the bridge deck good stability.

[0015] As a preferred embodiment, the tail-end locking member includes a first locking rod hinged to a first connecting rod of the outermost support frame, a second locking rod hinged to a second connecting rod of the outermost support frame, a first gear disposed at the other end of the first locking rod, a second gear disposed at the other end of the second locking rod and meshing with the first gear, and a mounting base for mounting the first gear and the second gear, wherein the first gear and the second gear are rotatably connected to the mounting base respectively.

[0016] By adopting the above technical solution, the tail-end locking component achieves the unfolding and locking of the support frame through a first locking rod and a second locking rod hinged to the first and second connecting rods of the outermost support frame. Both are equipped with a first gear and a second gear, respectively, and can mesh and rotate. When the support frame unfolds, the first locking rod and the second locking rod rotate through the meshing of the first and second gears, adapting to the gradually increasing angle of the support frame. Simultaneously, the meshing action of the first and second gears fixes the support frame, thereby achieving locking and effectively ensuring the stability of the support frame, making the entire structure more robust and reliable after unfolding.

[0017] Compared with the prior art, the beneficial effects of this utility model are: This utility model;

[0018] 1. Through the coordinated work of the main bridge deck, panel supports, and supporting crossbars, efficient and convenient bridge deck support is achieved. The panel supports consist of multiple hinged support frames, which can be unfolded according to actual needs via adjustable components to support the main bridge deck; when not in use, they can also be folded and stored using adjustable components, significantly reducing space occupation and facilitating transportation.

[0019] 2. The supporting crossbars play a stabilizing role, ensuring the safety and stability of the entire structure during construction;

[0020] 3. The locking component at the end of the panel support further enhances the stability of the structure by locking the support frame, ensuring the stability of the bridge deck during subway construction and improving construction efficiency and safety. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the steel temporary bridge for subway construction according to this utility model;

[0022] Figure 2 This utility model relates to a temporary steel bridge for subway construction. Figure 1 A structural schematic diagram of the front view;

[0023] Figure 3 This is a structural schematic diagram of the panel support component in the steel temporary bridge for subway construction according to this utility model;

[0024] Figure 4 This is a structural schematic diagram of the tail-end locking component in the temporary steel bridge for subway construction of this utility model;

[0025] Figure 5 This utility model relates to a temporary steel bridge for subway construction. Figure 4 Schematic diagram of the enlarged view at point A

[0026] In the picture:

[0027] 100. Bridge deck main body; 1. Panel support; 2. Support crossbar; 3. Adjustment frame; 31. Mounting plate; 41. First connecting rod; 42. Second connecting rod; 43. Third connecting rod; 44. Fourth connecting rod; 45. First locking rod; 451. First gear; 46. Second locking rod; 461. Second gear; 51. Connecting shaft; 511. Adjustable support leg; 61. Moving slide frame; 62. Adjusting screw; 621. Adjusting screw sleeve; 7. Mounting base. Detailed Implementation

[0028] The technical solutions of the present utility model 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 utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0029] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0030] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0031] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0032] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0033] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0034] like Figures 1 to 5 As shown, a temporary steel bridge for subway construction includes a bridge deck body 100, a panel support 1 installed on the lower end of the bridge deck body 100, and support crossbars 2 installed on both sides of the other end of the panel support 1.

[0035] Please refer to details. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The panel support component 1 comprises several hinged support frames, a tail-end locking component at the tail end of each support frame, and an adjustment component at the front end of each support frame. In this invention, efficient and convenient bridge deck support is achieved through the coordinated operation of the bridge deck body 100, the panel support component 1, and the support crossbar 2. The panel support component 1, composed of multiple hinged support frames, can be unfolded according to actual needs via the adjustment component to support the bridge deck body 100. When not in use, it can be folded and stored using the adjustment component, significantly reducing space occupation and facilitating transportation. The support crossbar 2 provides stability, ensuring the safety and stability of the entire structure during construction. The tail-end locking component of the panel support component 1 further enhances the stability of the structure by locking the support frames, ensuring the stability of the bridge deck during subway construction and improving construction efficiency and safety.

[0036] Please refer to the details. Figure 2 , Figure 3 and Figure 4Each support frame includes a first connecting rod 41, a second connecting rod 42 hinged to the first connecting rod 41, a third connecting rod 43 hinged to the other end of the first connecting rod 41, a fourth connecting rod 44 hinged to the other end of the second connecting rod 42, and a connecting shaft 51 for hinged to the other ends of the third connecting rod 43 and the fourth connecting rod 44. Connecting shafts 51 are also provided at the hinge points of the first connecting rod 41, the second connecting rod 42, the third connecting rod 43, and the fourth connecting rod 44. Since the first connecting rod 41, the second connecting rod 42, the third connecting rod 43, and the fourth connecting rod 44 are connected by connecting shafts 51, it is convenient to unfold the support frame and to fold and store the support frame.

[0037] Please refer to the details. Figure 3 , Figure 4 and Figure 5 The adjustment assembly includes an adjustment frame 3, an adjustment screw 62 connected to the adjustment frame 3, an adjustment sleeve 621 disposed at the connection between the adjustment screw 62 and the adjustment frame 3, a movable slide frame 61 connected to the end of the adjustment screw 62 away from the adjustment frame 3, and a mounting plate 31 fixedly disposed at the other end of the adjustment frame 3. The mounting plate 31 is hinged to the connection between the first connecting rod 41 and the second connecting rod 42, thereby facilitating the connection between the support frame and the adjustment frame 3 through the mounting frame, thus facilitating the unfolding and folding of the support frame by the adjustment assembly. The end of the movable slide frame 61 away from the adjustment screw 62 is connected to the hinge of the third connecting rod 43 and the fourth connecting rod 44. When the adjustment screw 62 is rotated, due to the complementary effect between it and the adjustment sleeve 621, it is easy to push the third connecting rod 43 and the fourth connecting rod 44 to move relative to the first connecting rod 41 and the second connecting rod 42, thereby facilitating the unfolding of the support frame.

[0038] Accordingly, the support frame is hinged together by the first link 41, the second link 42, the third link 43, and the fourth link 44 via the connecting pivot 51. The entire structure can be folded and stored in the initial state and unfolded when needed. The working principle of unfolding and folding is as follows: First, the support frame is connected to the adjustment frame 3 in the adjustment assembly via the mounting plate 31. The adjustment assembly includes the adjustment frame 3, the adjustment screw 62, the adjustment sleeve 621, the movable slide frame 61, and the mounting plate 31. When the adjustment screw 62 is rotated, the movable slide frame 61 pushes the third link 43 and the fourth link 44 to move relative to the first link 41 and the second link 42, thereby gradually unfolding the support frame from the folded state to the desired shape until all the support frames are unfolded. This method is simple to operate and saves space.

[0039] Please refer to the details. Figure 2 and Figure 3To facilitate the connection between the panel support 1 and the support crossbar 2, adjustable feet 511 are also provided on the lower end face of the connecting shaft 51 on each side. One end of the adjustable foot 511 is fixedly connected to the connecting shaft 51, and the other end of the adjustable foot 511 is fixedly connected to the support crossbar 2 through a fastener. Adjustable feet 511 are provided on the lower end face of the connecting shaft 51 on each side. One end of the adjustable foot 511 is fixedly connected to the connecting shaft 51, and the other end is connected to the support crossbar 2 through a fastener. This design not only facilitates the adjustment of the distance between the connecting shaft 51 and the support crossbar 2, but also allows for flexible adjustment of the height and position of the support frame, enhancing the support stability of the panel support 1 on the bridge deck body 100, simplifying the installation and adjustment process, and giving the bridge deck body 100 good stability.

[0040] Please refer to the details. Figure 4 and Figure 5 The tail-end locking component includes a first locking rod 45 hinged to the first connecting rod 41 of the outermost support frame, a second locking rod 46 hinged to the second connecting rod 42 of the outermost support frame, a first gear 451 disposed at the other end of the first locking rod 45, a second gear 461 disposed at the other end of the second locking rod 46 and meshing with the first gear 451, and a mounting base 7 for mounting the first gear 451 and the second gear 461. The first gear 451 and the second gear 461 are rotatably connected to the mounting base 7 respectively. The tail-end locking component realizes the expansion and locking of the support frame through the first locking rod 45 and the second locking rod 46 hinged to the first connecting rod 41 and the second connecting rod 42 of the outermost support frame. The two are respectively equipped with the first gear 451 and the second gear 461, and the two can mesh and rotate. When the support frame is unfolded, the first locking rod 45 and the second locking rod 46 rotate through the meshing of the first gear 451 and the second gear 461 to adapt to the gradually increasing angle of the support frame. At the same time, with the help of the meshing action of the first gear 451 and the second gear 461, the support frame is fixed, thereby locking the support frame and effectively ensuring the stability of the support frame, making the entire structure more robust and reliable after unfolding.

[0041] In this embodiment, during use, rotating the adjusting screw 62 causes the sliding frame 61 to push the third connecting rod 43 and the fourth connecting rod 44 relative to the first connecting rod 41 and the second connecting rod 42, thereby gradually unfolding the support frame from a folded state to the desired shape until all the support frames are unfolded. During the unfolding of the support frames, the first locking rod 45 and the second locking rod 46 rotate through the meshing of the first gear 451 and the second gear 461, adapting to the gradually increasing angle of the support frames. Simultaneously, the meshing of the first gear 451 and the second gear 461 fixes the support frames. Locking the support frame effectively ensures its stability. One end of the adjustable support leg 511 is connected to the connecting shaft 51 via a fixed connection, while the other end is connected to the support crossbar 2 via a fastener. This design not only facilitates adjusting the distance between the connecting shaft 51 and the support crossbar 2, but also allows for flexible adjustment of the height and position of the support frame. The panel support 1 is then fixedly installed, and the bridge deck body 100 is installed on the upper surface of the panel support 1. This avoids laying the support steel plates of the bridge deck body 100 one by one, simplifying the installation process and improving work efficiency.

[0042] The above are preferred embodiments of this utility model. Those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above. Any obvious improvements, substitutions or modifications made by those skilled in the art based on this utility model shall fall within the protection scope of this utility model.

Claims

1. A subway construction steel temporary bridge, characterized in that: The utility model relates to a bridge deck support structure, comprising a bridge deck body (100), a panel support (1) arranged at the lower end face of the bridge deck body (100), and a support crossbar (2) arranged at both sides of the other end of the panel support (1). The panel support (1) comprises a plurality of support frames hinged to each other, a tail end locking member arranged at the tail end of the support frame, and an adjusting assembly arranged at the front end of the support frame.

2. The subway construction steel temporary bridge according to claim 1, characterized in that: The support frame comprises a first connecting rod (41), a second connecting rod (42) hinged to the first connecting rod (41), a third connecting rod (43) hinged to the other end of the first connecting rod (41), a fourth connecting rod (44) hinged to the other end of the second connecting rod (42), and a connecting rotating shaft (51) for hinging the other ends of the third connecting rod (43) and the fourth connecting rod (44).

3. The subway construction steel temporary bridge according to claim 2, characterized in that: The first connecting rod (41), the second connecting rod (42), and the hinging positions of the third connecting rod (43) and the fourth connecting rod (44) are also provided with connecting rotating shafts (51).

4. The subway construction steel temporary bridge according to claim 3, characterized in that: The adjusting assembly comprises an adjusting frame (3), an adjusting screw rod (62) connected to the adjusting frame (3), an adjusting screw sleeve (621) arranged at the connecting position of the adjusting screw rod (62) and the adjusting frame (3), a moving sliding frame (61) arranged at the end of the adjusting screw rod (62) away from the adjusting frame (3), and a mounting plate (31) fixedly arranged at the other end of the adjusting frame (3).

5. The subway construction steel temporary bridge according to claim 4, characterized in that: The mounting plate (31) is hinged to the connecting position of the first connecting rod (41) and the second connecting rod (42), and the end of the moving sliding frame (61) away from the adjusting screw rod (62) is connected to the hinging position of the third connecting rod (43) and the fourth connecting rod (44).

6. The subway construction steel temporary bridge according to claim 5, characterized in that: An adjustable supporting leg (511) is arranged at the lower end face of each connecting rotating shaft (51), one end of the adjustable supporting leg (511) is fixedly connected to the connecting rotating shaft (51), and the other end of the adjustable supporting leg (511) is fixedly connected to the support crossbar (2) through a fixing member.

7. The subway construction steel temporary bridge according to claim 6, characterized in that: The tail end locking member comprises a first locking rod (45) hinged to the first connecting rod (41) of the outermost support frame, a second locking rod (46) hinged to the second connecting rod (42) of the outermost support frame, a first gear (451) arranged at the other end of the first locking rod (45), a second gear (461) arranged at the other end of the second locking rod (46) and meshing with the first gear (451), and a mounting seat (7) for mounting the first gear (451) and the second gear (461).

8. The subway construction steel temporary bridge according to claim 7, characterized in that: The first gear (451) and the second gear (461) are respectively rotationally connected to the mounting seat (7).

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