Portable modular bridge

Abstract

The invention discloses a portable modular bridge, which belongs to the field of emergency bridges and comprises bridge span modules, connecting rod modules, reinforcing rod modules, long-strip clamping grooves, holes, first buckles, second buckles and connecting joints. The holes are formed in the two vertical sides of the bridge span modules, the connecting rod modules penetrate through the holes to connect the two or more bridge span modules, long-strip-shaped clamping grooves are formed in the two ends of the bridge head of each bridge span module, first buckles are arranged at the two ends of each reinforcing rod module, and the reinforcing rod modules are connected with the long-strip-shaped clamping grooves in a matched mode through the first buckles. Second buckles are arranged at the ends of the bridge span modules, the heads and the tails of the bridge span modules in the length direction are connected through the second buckles, the bridge span modules are transversely connected through connecting joints in the width direction, and the bridge span modules and the connecting rod modules are in a detached state in the carrying process so as to reduce the transportation size. According to the invention, the generalization level is high, and the modular expansion of the length and width dimensions and the bearing capacity and the reduction of the transportation volume can be realized.

Description

Technical Field

[0001] The invention relates to the field of emergency bridges, in particular to a portable modular bridge. Background Art

[0002] Emergency bridges play an important role in ensuring the mobility of troops and in non-war military operations such as flood control and earthquake relief. In order to improve the security efficiency of emergency bridges, it is necessary to reduce their transportation volume and weight, improve their mobility, and increase their modularity as much as possible to enhance their flexibility of use.

[0003] An existing mobile modular bridge connecting bridge latch mechanism (patent number CN105755947A) utilizes a crank and sleeve structure to realize the latch action through a gear pair and a spiral pair. The connecting bridge latch structure is relatively stable and reliable. Its main disadvantage is that the connecting bridge latch structure is relatively complex and requires an additional power source. An existing modular bridge template quick connection device (patent number CN219547586U) uses a reinforcement component and connecting bolts to fix the modular bridge template. Its main disadvantage is that the reinforcement component is large in size and the connection steps are relatively complicated. The existing assembled modular bridge (patent number CN106758761A) includes a middle bridge section and an end bridge section. The bridge sections are connected by single and double ear latches. The structure is simple and reliable, and the span and width are variable. Its main disadvantage is that the single and double ear latch connection requires high installation accuracy.

[0004] In summary, the existing bridge equipment has a low degree of modularity and is not flexible enough to use. Summary of the invention

[0005] In view of the problems that existing emergency bridges are not modular enough and are not flexible enough in use, the purpose of the present invention is to provide a portable modular bridge with a simple structure, modular expandability, and convenient and fast splicing and withdrawal, which is conducive to improving the maneuverability of bridge equipment and has a wider range of applications.

[0006] The technical solution for achieving the purpose of the present invention is as follows:

[0007] A portable modular bridge comprises a span module, a connecting rod module, a reinforcing rod module, a long card slot, a hole, a first buckle, and a second buckle; the holes are arranged on both vertical sides of the span module, the connecting rod module passes through the hole to connect two or more span modules, the two ends of the span module are provided with long card slots inside, the two ends of the reinforcing rod module are provided with first buckles, the reinforcing rod module is connected with the long card slot through the first buckle, and the end of the span module is provided with a second buckle. The span module, the connecting rod module, and the reinforcing rod module are quickly connected and disassembled through a splicing structure.

[0008] The bridge span module is connected at the head and tail ends in the length direction by a second buckle, and the bridge span module is a box-shaped closed structure.

[0009] The bridge span modules are connected transversely in the width direction via connecting joints, and the connecting joints are integrated with the bridge span modules or are separate from the bridge span modules.

[0010] The second buckle has a shape of any one of a triangle, a rhombus or a circle.

[0011] The bridge span modules can be expanded and spliced ​​along the length and width directions to form road surface equipment.

[0012] The bridge span module and the connecting rod module are in a disassembled state during transportation to reduce the transportation volume.

[0013] The beneficial effects of the present invention are:

[0014] (1) The present invention can realize rapid splicing and disassembly, has a simple structure and strong maneuverability;

[0015] (2) The present invention can realize modular splicing and expansion in length and width directions, and has better adaptability to overcoming obstacles of various sizes, shapes and large areas;

[0016] (3) The present invention is in a disassembled state during transportation, which can reduce the transportation volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the structural composition of the present invention

[0018] Figure 2 Disassembly state diagram of the present invention

[0019] Figure 3 Schematic diagram of adding connecting rod and reinforcing rod module

[0020] Figure 4 Adding bridge span module diagram

[0021] Figure 5 Schematic diagram of the splicing and expansion of the bridge span module in the length direction

[0022] Figure 6 to Figure 9 One-piece splicing joint part I enlarged view

[0023] Fig.10 Schematic diagram of integrated splicing expansion of bridge span modules in width direction

[0024] Figure 11-12 Enlarged view of the integrated splicing joint in the width direction of the span module, part II

[0025] Fig.13 Schematic diagram of split splicing expansion in the width direction of the bridge span module

[0026] Figures 14 to 16 Enlarged view of the split splicing joint in the width direction of the bridge span module Part III

[0027] Fig.17 Schematic diagram of the bridge span module being connected horizontally with vertical snap-on connections

[0028] Fig.18 Schematic diagram of horizontal snap-on connection of bridge span modules

[0029] Fig.19 Schematic diagram of crossing horizontal long obstacle

[0030] Fig. 20 Schematic diagram of modular bridges crossing various obstacles

[0031] Fig.21 Schematic diagram of modular bridge expansion into road surface

[0032] Among them, 1-bridge span module, 2-connecting rod module, 3-reinforcement rod module, 4-long slot, 5-hole, 6-first buckle, 7-second buckle, 8-connecting joint, 9-horizontal split joint, 10-vertical split joint, 11-first basic module, 12-second basic module, 13-large span obstacle, 14-small span obstacle, 15-vertical height obstacle. DETAILED DESCRIPTION

[0033] The present invention is described in detail below in conjunction with the accompanying drawings. The enumerated embodiments are only used to help understand the present invention and should not be construed as limiting the scope of protection of the invention. For ordinary technicians in this technical field, the present invention can be improved and modified without departing from the principles and ideas of the present invention. These improvements and modifications also fall within the scope of protection of the claims of the present invention.

[0034] like Figure 1 As shown, a portable modular bridge of this embodiment includes a span module 1, a connecting rod module 2, a reinforcing rod module 3, a long card slot 4, a hole 5, and a first buckle 6. The hole 5 is set on both sides of the span module 1, and the connecting rod module 2 connects the two span modules 1 through the hole 5. The two ends of the span module 1 are provided with a long card slot 4 inside, and the two ends of the reinforcing rod module 3 are provided with a first buckle 6, which is connected with the long card slot 4 through the first buckle 6. The number of reinforcing rod modules is modularly increased or decreased according to the bearing capacity.

[0035] like Figure 2 As shown, in the transport state, two bridge span modules are stacked up and down, and two connecting rod modules are placed side by side on the bridge span modules and fixed by ropes or fasteners. The overall volume after disassembly is smaller than before disassembly, which is convenient for transportation.

[0036] like Figure 3As shown, holes 5 are added to the bridge span module 1 to increase the number of connecting rod modules and increase the stability of the bridge. The number of reinforcing rod modules 3 is modularly increased through long card slots 4 according to the bearing capacity requirements. Figure 3 Two reinforcement bar modules are shown in FIG.

[0037] like Figure 4 As shown, the connecting rod module 2 passes through the hole 5 to achieve connection with the bridge span module 1, so as to increase the lateral passable area and accommodate the passage of vehicles with different rut widths.

[0038] like Figure 5 As shown, the span is increased by splicing and expanding the span module 1 in the length direction, and the span module 4 is a box-shaped closed structure so that both the upper and lower bridge decks are passable.

[0039] like Figure 6 to Figure 9 As shown, the end of the bridge span module is provided with a second buckle 7, and the head and tail of the bridge span module in the length direction are connected by the second buckle 7. Increasing the number of second buckles and enlarging the size of the second buckle enhances the joint strength, and the arc surface of the second buckle reduces the stress concentration at the joint. The shape of the second buckle 7 is any one of a triangle, a rhombus or a circle. The second buckle 7 changes the angle direction, including 0 to 360 degrees, to achieve fast and flexible connection and expansion of the bridge span module.

[0040] like Figure 10 to Figure 12 As shown, the multi-channel rapid crossing of long obstacles is achieved by splicing and expanding the width direction of the modular bridge. The connecting joints 8 are arranged on both sides of the length direction of the bridge span module 1. The bridge span modules are fixedly connected by the connecting joints 8 to enhance the passing stability. The connecting joints 8 are single-ear and double-ear joints, and the directions include horizontal or vertical. The connecting joints 8 are integrated with the bridge span module.

[0041] like Figure 13 to Figure 16 As shown, the connection joint is separate from the bridge span module. The connection joint is a horizontal split joint 9 or a vertical split joint 10, which is fixed to the bridge span by bolts, or the connection joint is fixedly connected to the bridge span module by a buckle 7.

[0042] The bridge span modules are fixedly connected in the horizontal direction by means of the second buckle 7. By changing the direction of the second buckle, the vertical buckle is Fig.17 , as shown by the horizontal buckle 18, it is convenient to realize the fast and flexible connection and expansion of the bridge span module.

[0043] like Fig.19As shown, the first basic module 11 and the second basic module 12 are arranged side by side to ensure that multiple channels can cross long obstacles at the same time. The first basic module 11 includes three bridge span modules 1 to provide a larger passable channel area. The adjacent second basic modules 12 are laterally connected through connecting joints to ensure the stability of the bridge span.

[0044] like Fig. 20 As shown, in order to cross the large-span obstacle 13 and the small-span obstacle 14, the obstacles are overcome by flexibly adjusting the splicing quantity and splicing shape of the bridge span modules, and the bridge span modules can overcome the vertical height obstacle 15.

[0045] like Fig.21 As shown, the bridge span module 1 is spliced ​​in the length and width directions to expand into a road surface for use in overcoming obstacles in soft and muddy areas in emergency situations. The shape and size of the road surface can be adjusted by adjusting the splicing direction and number of the bridge span modules.

Claims

1. A portable modular bridge, characterized in that: The invention comprises a bridge span module (1), a connecting rod module (2), a reinforcing rod module (3), a long card slot (4), a hole (5), a first card buckle (6), a second card buckle (7), and a connecting joint (8); the holes (5) are arranged on both sides of the bridge span module (1) in the length direction; the connecting rod module (2) passes through the holes (5) to connect two or more bridge span modules (1); the bridge ends of the bridge span module (1) are provided with long card slots (4); the reinforcing rod module (3) is provided with a first card buckle (6) at both ends; the reinforcing rod module (3) is provided with a first card buckle (6) at both ends; the reinforcing rod module (8 ... The block (3) is connected with the long slot (4) through a first buckle (6); a second buckle (7) is arranged at the end of the bridge span module; the head and tail of the bridge span module (1) are connected in the length direction through the second buckle (7); the bridge span module (1) is a box-shaped closed structure; the connecting joint (8) is arranged on both sides of the length direction of the bridge span module (1); the bridge span modules (1) are connected in the transverse direction of the width direction through the connecting joint (8); the connecting joint (8) is integrated with the bridge span module or is separate from the bridge span module.

2. The portable modular bridge according to claim 1, characterized in that The number of holes (5) on the bridge span module (1) can be increased according to the number of connecting rod modules.

3. The portable modular bridge according to claim 1, characterized in that: The second buckle (7) is in any one of a triangle, a rhombus or a circle shape.

4. The portable modular bridge according to claim 1, characterized in that The three bridge span modules (1) are transversely connected to form a first basic module (11), and the two bridge span modules (1) are transversely connected to form a second basic module (12). The first basic module (11) and the second basic module (12) are arranged side by side to ensure that multiple channels can cross obstacles at the same time.

5. The portable modular bridge according to claim 1, characterized in that: The bridge span modules (1) are spliced ​​and expanded in both the length direction and the width direction to form road surface equipment, which is used to overcome obstacles in soft and muddy areas.

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