Fabricated construction temporary bridge

Abstract

The utility model relates to the technical field of construction temporary supporting equipment, and discloses an assembly type construction temporary bridge which comprises a plurality of connecting units, and every two adjacent connecting units are detachably connected. Wherein the connecting unit comprises two supporting cross beams which are arranged in parallel, a buoy is arranged at the bottom of each supporting cross beam, and the two supporting cross beams are connected through a supporting longitudinal beam which is vertically arranged; connecting rods are arranged at the two ends of the supporting longitudinal beam, an L-shaped clamping plate is arranged on one side of each connecting rod, and connecting holes allowing the connecting rods to penetrate through are formed in the supporting cross beam; supporting plates are laid on the supporting longitudinal beams; the temporary bridge can be quickly mounted and dismounted, meanwhile, the length of the temporary bridge can be flexibly adjusted according to requirements, various working condition requirements can be met, the working efficiency is high, the building cost is low, and the practicability is high.

Description

A prefabricated construction temporary bridge Technical Field

[0001] This utility model relates to the technical field of temporary construction support equipment, and in particular to a prefabricated construction temporary bridge. Background Technology

[0002] Temporary bridges are common temporary structures used in building construction, bridge erection, or temporary works to cross rivers, ditches, or other obstacles, allowing construction workers and equipment to pass. Traditional temporary construction bridges typically use fixed steel or concrete structures, which suffer from problems such as long installation periods, difficult dismantling, and inconvenient transportation. Especially in water or complex terrain conditions, construction efficiency is low, and they are difficult to reuse.

[0003] While existing prefabricated temporary bridges have improved modularity to some extent, they still have shortcomings in their connection structures. For example, some temporary bridges use bolts or welding to connect unit modules, making installation and disassembly cumbersome and requiring high construction precision. Furthermore, the protective structures of traditional temporary bridges are usually fixed, making them difficult to adjust or store quickly, thus affecting transportation and storage efficiency. Therefore, there is an urgent need for a prefabricated construction temporary bridge that is easy to install, disassemble, and reuse, in order to improve construction efficiency, reduce construction costs, and adapt to different working conditions. Summary of the Invention

[0004] The purpose of this utility model is to provide a prefabricated construction temporary bridge that can be quickly installed and disassembled, and whose length can be flexibly adjusted according to needs. It can meet the needs of various working conditions, has high work efficiency, low construction cost, and strong practicality.

[0005] The present invention adopts the following technical solution:

[0006] A prefabricated temporary construction bridge includes multiple connecting units, with adjacent connecting units being detachably connected. Each connecting unit includes two parallel supporting beams, each supporting beam having a pontoon at its bottom. The two supporting beams are connected by vertically arranged supporting longitudinal beams. Each supporting longitudinal beam has a connecting rod at both ends, and each connecting rod has an L-shaped clamping plate on one side. The supporting beams have connecting holes for the connecting rods to pass through. Support plates are laid on the supporting longitudinal beams.

[0007] Preferably, the supporting crossbeam has a groove matching the thickness of the card plate, and the tops of the supporting longitudinal beam and the supporting crossbeam are at the same height after they are connected.

[0008] Preferably, the supporting longitudinal beam has a positioning cavity inside along its length, the top of the supporting longitudinal beam has a moving groove communicating with the positioning cavity, a positioning plate is elastically provided on the supporting plate, an adjustment hole is provided on the top of the supporting plate, and an adjustment rod provided on the top of the positioning plate is movably located in the adjustment hole; wherein the width of the positioning plate is smaller than the width of the moving groove, and the length is greater than the width of the moving groove.

[0009] Preferably, the top of the positioning plate and the two sides of the moving groove at the top of the positioning cavity are provided with intermeshing positioning teeth and positioning grooves.

[0010] Preferably, it further includes four positioning rods, two of which are arranged on both sides of the connecting unit at the first end, and the remaining two are arranged on both sides of the connecting unit at the last end; wherein a steel wire rope is provided between the two positioning rods at the first and last ends on each side, and a protective rod is provided on the supporting crossbeam, and the protective rod is connected to the steel wire rope.

[0011] Preferably, both positioning rods are equipped with winding wheels, and the wire rope is wound onto the winding wheels; a ratchet is coaxially provided on the winding wheels, and ratchet teeth that mesh with the ratchet are elastically provided on the positioning rods; a handle is connected to the winding wheels.

[0012] Preferably, the end of the wire rope is provided with a positioning pin, and the positioning rod without the winding wheel is provided with a positioning sleeve for the positioning pin to pass through.

[0013] Preferably, multiple protective ropes are arranged between adjacent guardrails from top to bottom.

[0014] Preferably, the protective rod is provided with the positioning sleeve, and both ends of the protective rope are provided with the positioning pin.

[0015] Preferably, the connecting rod is provided with an external thread, and a connector is provided between two adjacent connecting units. The connector includes threaded sleeves at both ends, and the two threaded sleeves are rotatably disposed at both ends of the connecting rod; the threaded sleeves are threadedly connected to the corresponding connecting rod.

[0016] Compared with existing technologies, the advantages of this utility model are as follows: The modular design of this utility model facilitates rapid installation and disassembly. This prefabricated construction bridge is composed of multiple standardized connecting units, with adjacent units connected by a detachable structure, thus meeting the operational needs of waterways of different spans. The L-shaped clamping plates and connecting rods on the supporting longitudinal beams allow for easy and quick installation by first inserting the connecting rods into the connecting holes and then rotating the supporting longitudinal beams to engage the clamping plates. The supporting crossbeams and longitudinal beams are prefabricated, requiring only on-site assembly, significantly shortening the construction cycle. Furthermore, they can be reused after disassembly, reducing construction costs. Attached Figure Description

[0017] Figure 1 is a top view of an embodiment of this application;

[0018] Figure 2 is a structural schematic diagram of the supporting beam in an embodiment of this application;

[0019] Figure 3 is a schematic diagram of the supporting longitudinal beam in an embodiment of this application;

[0020] Figure 4 is a partial sectional view of the support plate and the support longitudinal beam of this application;

[0021] Figure 5 is a partial cross-sectional view of the positioning rod according to an embodiment of this application. Detailed Implementation

[0022] The present invention will now be described clearly and completely with reference to the accompanying drawings and embodiments:

[0023] As shown in Figures 1 to 5, the prefabricated temporary construction bridge of this utility model includes multiple connecting units, with adjacent connecting units being detachably connected. Each connecting unit includes two parallel supporting beams 1, and each supporting beam 1 has a pontoon 2 at its bottom for placement in the water to provide buoyancy support for the entire connecting unit. The specifications of the pontoon 2 can be matched and selected according to the weight to be borne during operation. The pontoon 2 is preferably a cylindrical structure, such as a discarded metal oil drum, with both ends rotatably connected to the supporting beams 1 via sealed bearings, facilitating the pushing of the connecting unit into the river channel after assembly on the bank. The support beams 1 and 2 are connected by vertically arranged longitudinal beams 3. Each end of the longitudinal beam 3 is equipped with a connecting rod 4. Each connecting rod 4 has an L-shaped clamping plate 5 on the same side. The length of the clamping plate 5 from the end closest to the longitudinal beam 3 to the end furthest from the longitudinal beam 3 matches the width of the support beam 1. The support beam 1 has connecting holes 6 for the connecting rods 4 to pass through. During operation, the connecting rod 4 is first inserted into the connecting hole 6, and then rotated along the direction of the clamping plate 5. The clamping plate 5 will then lock onto the support beam 1, thereby achieving a quick connection between the longitudinal beam 3 and the support beam 1, effectively improving work efficiency. A support plate 13 is laid on the longitudinal beam 3 to provide a support platform for construction operations.

[0024] As shown in Figure 2, the support beam 1 has a groove 7 that matches the thickness of the clamping plate 5. After the support longitudinal beam 3 is connected to the support beam 1, the tops are at the same height, so as to provide a flat support for the laying of the support plate 13 at the connection point of the support longitudinal beam 3 and the support beam 1. In addition, as shown in Figure 1, the connecting rod 4 is provided with external threads, and a connector is provided between two adjacent connecting units. The connector includes threaded sleeves 8 at both ends, and the two threaded sleeves 8 are rotatably set at both ends of the connecting rod 9. The threaded sleeves 8 are threadedly connected to the corresponding connecting rod 4. The two connecting units are connected and fixed through the connector. The structure is simple and the operation is convenient and quick.

[0025] Furthermore, a positioning cavity 10 is formed inside the supporting longitudinal beam 3 along its length direction, and a moving groove 11 communicating with the positioning cavity 10 is formed on the top of the supporting longitudinal beam 3. A positioning plate 12 is provided on the supporting plate 13, and the positioning plate 12 is located at the bottom of the supporting plate 13. An adjustment hole 14 is formed on the top of the supporting plate 13, and an adjustment rod 15 provided on the top of the positioning plate 12 is movably located in the adjustment hole 14. The positioning plate 12 is elastically set at the bottom of the supporting plate 13 by a spring 16 provided between the adjustment rod 15 and the supporting plate 13. Specifically, a spring 16 is provided on the adjustment rod 15, and the top end of the spring 16 is rotatably connected to the bottom end of the supporting plate 13 to prevent the spring 16 from obstructing the rotation of the adjustment rod 15. The width of the positioning plate 12 is smaller than the width of the moving groove 11, and the length is larger than the moving groove. The width of the 11 is less than the length of the moving groove 11. In the initial state, the positioning plate 12 is parallel to the moving groove 11. When the support plate 13 is placed on the support longitudinal beam 3, the positioning plate 12 moves down into the moving groove 11. When the support plate 13 is pushed to the designated position, the adjusting rod 15 can be pressed down to make the positioning plate 12 move down into the positioning cavity 10. Then, the adjusting rod 15 is controlled to rotate 90 degrees, and the positioning plate 12 is vertically located below the moving groove 11, abutting against the top wall of the positioning cavity 10 to achieve the positioning of the support plate 13. In this utility model, the adjusting rod 15 is located in the adjusting hole 14 in both the initial state and the working state to avoid safety hazards to workers stepping on the support plate 13. At the same time, the top of the adjusting rod 15 is recessed with an adjusting groove so that tools can be inserted into it to drive the adjusting rod 15 to rotate.

[0026] Preferably, the top of the positioning plate 12 and the top of the positioning cavities 10 on both sides of the moving groove 11 are provided with intermeshing positioning teeth 17 and positioning grooves. The intermeshing of the positioning teeth 17 and positioning grooves can further improve the stability of the support plate 13 during installation. In this embodiment, the positioning plates 12 are symmetrically arranged in two rows, each row being a certain length away from the edge of the support plate 13. This allows the support plate 13 to partially overlap the end support beam 1 during installation, compensating for the gap between the two connecting units and ensuring safety.

[0027] Furthermore, as shown in Figures 1 and 2, this embodiment also includes four positioning rods 18. Two positioning rods 18 are arranged on both sides of the first connecting unit along the length of the supporting beam 1, and the remaining two positioning rods 18 are arranged on both sides of the last connecting unit along the length of the supporting beam 1. A steel wire rope 19 is installed between the first and last positioning rods 18 on each side, and a protective rod 20 is installed on the supporting beam 1, connected to the steel wire rope 19. The positioning rods 18 are pre-embedded on the banks at both ends of the river channel. By using the protective rod 20 on the supporting beam 1 to connect with the steel wire rope 19, multiple connecting units can be limited, ensuring the relative stability of the connecting units during operation. The protective rod 20 is preferably detachably connected to the supporting beam 1 for subsequent storage and transportation. The supporting beam 1 and the protective rod 20 can be connected by a screw and nut. Specifically, an installation through hole is opened on the supporting beam 1, and the protective rod 20 is inserted into it. The supporting beam 1 has a fixing hole that passes through the installation through hole. The part of the protective rod 20 inserted into the installation through hole is also provided with a fixing hole. A screw is inserted into the fixing hole, and the other end of the screw is fastened with a nut.

[0028] In addition, both positioning rods 18 are equipped with take-up wheels 21, on which the wire rope 19 is wound up. A ratchet 22 is coaxially mounted on the take-up wheel 21, and ratchet teeth 23, which mesh with the ratchet 22, are elastically mounted on the positioning rods 18. A handle is connected to the take-up wheel 21. Turning the handle allows for easy winding of the wire rope 19, facilitating disassembly, transportation, and storage. It also allows for adjustment of the wire rope 19 length depending on the number of connecting units. With the ratchet teeth 23 engaged with the ratchet 22, the wire rope 19 will not release from the take-up wheel 21 when pulled by the connecting unit, ensuring stability during operation. In this example, a cavity is preferably provided on the upper part of the positioning rod 18, and the winding wheel 21, ratchet 22, and ratchet tooth 23 are all located in the cavity. The positioning rod 18 has a wire outlet hole that communicates with the cavity, through which the wire rope 19 passes. The handle is located outside the positioning rod 18, and an operating rod connected to the ratchet tooth 23 is also provided outside the positioning rod 18, so that the ratchet tooth 23 can be disengaged from the ratchet 22 by adjusting the operating rod when releasing the wire rope 19.

[0029] The end of the wire rope 19 is provided with a positioning pin 24. The positioning rod 18 without a winding wheel 21 is provided with a positioning sleeve 25 for the positioning pin 24 to pass through. By the positioning pin 24 passing through the positioning sleeve, the wire rope 19 can be quickly deployed.

[0030] Furthermore, multiple protective ropes are installed between adjacent guardrails 20 from top to bottom. These ropes serve as protective fences to protect construction workers. Specifically, each guardrail 20 is equipped with a positioning sleeve 25, which is located on the near end faces of two adjacent guardrails 20. Both ends of the protective rope are equipped with positioning pins 24. By inserting the positioning pins 24 into the positioning sleeves, the protective ropes can be quickly installed and removed.

[0031] In use, this utility model first connects the longitudinal support beam 3 and the transverse support beam 1, and then lays the support plate 13 to complete the assembly of the connecting unit. After assembling a matching number of connecting units according to the width of the river channel, it is placed in the water. Positioning rods 18 are fixedly installed on both banks of the river channel, and steel wire ropes 19 are erected. During erection, the steel wire ropes 19 are passed through the through holes above the guard rods 20 to complete the connection between the steel wire ropes 19 and the connecting unit. After the steel wire ropes 19 are connected, the guard ropes between adjacent guard rods 20 are connected to complete the construction and installation of the temporary bridge.

Claims

1. A prefabricated temporary construction bridge, characterized in that: It includes multiple connecting units, and two adjacent connecting units are detachably connected; wherein each connecting unit includes two parallel supporting beams, each supporting beam has a float at its bottom, and the two supporting beams are connected by vertically arranged supporting longitudinal beams; each supporting longitudinal beam has a connecting rod at both ends, each connecting rod has an L-shaped clamping plate on one side, and the supporting beam has a connecting hole for the connecting rod to pass through; a supporting plate is laid on the supporting longitudinal beam.

2. The prefabricated construction temporary bridge according to claim 1, characterized in that: The supporting crossbeam has a groove that matches the thickness of the card plate, and the top of the supporting longitudinal beam and the supporting crossbeam are at the same height after they are connected.

3. The prefabricated construction temporary bridge according to claim 2, characterized in that: The supporting longitudinal beam has a positioning cavity inside along its length, and a moving groove communicating with the positioning cavity is formed on the top of the supporting longitudinal beam. A positioning plate is elastically provided on the supporting plate, and an adjustment hole is formed on the top of the supporting plate. An adjustment rod provided on the top of the positioning plate is movably located in the adjustment hole. The width of the positioning plate is smaller than the width of the moving groove, and the length is greater than the width of the moving groove.

4. The prefabricated construction temporary bridge according to claim 3, characterized in that: The top of the positioning plate and the top of the positioning cavity are provided with intermeshing positioning teeth and positioning grooves on both sides of the moving groove.

5. The prefabricated construction temporary bridge according to claim 1, characterized in that: It also includes four positioning rods, two of which are arranged on both sides of the connecting unit at the beginning, and the remaining two are arranged on both sides of the connecting unit at the end; wherein a steel wire rope is provided between the two positioning rods at the beginning and end on each side, and a protective rod is provided on the supporting crossbeam, and the protective rod is connected to the steel wire rope.

6. The prefabricated construction temporary bridge according to claim 5, characterized in that: Both positioning rods are equipped with winding wheels, and the wire rope is wound onto the winding wheels; a ratchet is coaxially mounted on the winding wheels, and ratchet teeth that mesh with the ratchet are elastically mounted on the positioning rods; a handle is connected to the winding wheels.

7. The prefabricated construction temporary bridge according to claim 6, characterized in that: The end of the wire rope is provided with a positioning pin, and the positioning rod without the winding wheel is provided with a positioning sleeve for the positioning pin to pass through.

8. The prefabricated construction temporary bridge according to claim 7, characterized in that: Multiple protective ropes are installed between adjacent guardrails from top to bottom.

9. The prefabricated construction temporary bridge according to claim 8, characterized in that: The protective rod is provided with the positioning sleeve, and both ends of the protective rope are provided with the positioning pin.

10. The prefabricated construction temporary bridge according to claim 1, characterized in that: The connecting rod is provided with an external thread, and a connecting member is provided between two adjacent connecting units. The connecting member includes threaded sleeves at both ends, and the two threaded sleeves are rotatably disposed at both ends of the connecting rod; the threaded sleeves are threadedly connected to the corresponding connecting rod.

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