A temporary portable modular steel bridge suitable for heavy loads

Abstract

The utility model discloses a kind of temporary movable modular steel bridges suitable for heavy load, including first cross plate, the top of the first cross plate is provided with second cross plate, the both sides of the first cross plate are uniformly attached with third cross plate, the bottom of the first cross plate and third cross plate is fixedly connected with connecting rod, the both sides of the second cross plate are uniformly attached with fourth cross plate, the first cross plate and third cross plate between and second cross plate and fourth cross plate between are inserted with mounting plate. The utility model relates to the technical field of modular steel bridge, the temporary movable modular steel bridge suitable for heavy load can change the position height of first cross plate and second cross plate according to actual adjustment demand when erecting installation, so as to guarantee that bridge deck is in flush state after erecting, and then improve the quality of subsequent use, and staff does not need to carry out excessive treatment to roadbed in advance.

Description

Technical Field

[0001] This utility model relates to the field of modular steel bridge technology, specifically a temporary movable modular steel bridge suitable for heavy loads. Background Technology

[0002] Modular steel bridges are bridges that are rapidly assembled from standardized prefabricated steel components. They are characterized by rapid construction, reusability, strong adaptability, and high load-bearing capacity, and are widely used in emergency rescue, military engineering, temporary transportation, and construction access roads.

[0003] When traditional modular steel bridges are used, a foundation layer needs to be laid before construction to ensure that the bridge deck is level. However, laying the foundation requires a large amount of sand and gravel, which slows down the overall construction speed. Moreover, the newly laid foundation is not well compacted and cannot provide adequate support, thus causing inconvenience to the workers. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a temporary movable modular steel bridge suitable for heavy loads. It solves the problem that traditional modular steel bridges require a foundation to be laid before construction to ensure a level bridge deck. However, laying the foundation requires a large amount of sand and gravel, which slows down the overall construction speed and results in poor compaction of the newly laid foundation, which cannot provide adequate support and causes inconvenience for workers.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a temporary movable modular steel bridge suitable for heavy loads, comprising a first horizontal plate, a second horizontal plate above the first horizontal plate, third horizontal plates attached to both sides of the first horizontal plate, connecting rods fixedly connected to the bottom of the first and third horizontal plates, fourth horizontal plates attached to both sides of the second horizontal plate, mounting plates inserted between the first and third horizontal plates and between the second and fourth horizontal plates, and multiple mounting plates fixed to the outer walls of the first, third, second, and fourth horizontal plates by high-strength bolts, and an adjustment mechanism provided below the first and third horizontal plates, the adjustment mechanism comprising: support plates, and multiple... A set of high-strength bolts are respectively located below the first horizontal plate and the two third horizontal plates, and are fixedly connected to the bottom of the connecting rod by high-strength bolts; multiple vertical rods are respectively inserted into the inner wall of the multiple support plates; multiple high-strength bolts are respectively rotatably connected to the inner wall of the support plate by bearings, and their outer walls are respectively threaded to the inner walls of the multiple vertical rods; multiple first bevel gears are respectively rotatably connected to the inner walls of the multiple support plates by bearings; multiple second bevel gears are respectively fixedly connected to the lower outer walls of the multiple high-strength bolts, and respectively mesh with the outer walls of the multiple first bevel gears; wherein, twisting the first bevel gears drives the high-strength bolts through the second bevel gears, causing the vertical rods to move along the inner wall of the support plate.

[0006] Preferably, the bottom of each of the plurality of support plates is fixedly connected with a probe rod.

[0007] Preferably, a limiting rod is inserted into the inner wall of the connecting rod, the bottom of the limiting rod is fixedly connected to the top of the vertical rod, and the bottom of the first horizontal plate and the third horizontal plate are fixedly connected to a connecting plate by high-strength bolts.

[0008] Preferably, a reinforcing mechanism is provided below the first horizontal plate and the two third horizontal plates. The reinforcing mechanism includes: a transverse reinforcing rod, fixedly connected to the bottom of the first horizontal plate and the third horizontal plate; a longitudinal reinforcing rod, fixedly connected to the bottom of the first horizontal plate and the third horizontal plate, and fixedly connected to the outer wall of the transverse reinforcing rod; and a reinforcing diagonal rod, fixedly connected to the bottom of the first horizontal plate and the third horizontal plate, and fixedly connected to the outer wall of the connecting rod. The transverse reinforcing rod, the longitudinal reinforcing rod, and the reinforcing diagonal rod can improve the strength of the device during use.

[0009] Preferably, a buffer device is provided above the first and third horizontal plates. The buffer device includes: multiple sleeves, each fixedly connected to the top of the first and third horizontal plates; multiple insert rods, each inserted into the inner wall of the multiple sleeves and fixedly connected to the bottom of the second and fourth horizontal plates; and multiple high-strength springs, each fixedly connected to the top of the first and third horizontal plates and fixedly connected to the bottom of the second and fourth horizontal plates. When the high-strength springs are compressed, they exert a force in the opposite direction on the second and fourth horizontal plates to achieve buffer protection. Beneficial effects

[0010] This utility model provides a temporary movable modular steel bridge suitable for heavy loads. It has the following advantages: Through the cooperation of the first and third horizontal plates and the adjustment mechanism, this temporary movable modular steel bridge suitable for heavy loads can automatically change the position and height of the first and second horizontal plates according to actual adjustment needs during erection and installation, ensuring that the bridge deck is flush after erection, thereby improving subsequent service quality. Furthermore, it eliminates the need for extensive pre-treatment of the roadbed by workers, significantly reducing their workload.

[0011] The combination of the buffer device, the second cross plate, and the fourth cross plate can automatically buffer heavy vehicles when they pass over the bridge deck, so that the instantaneous impact of the vehicle when it reaches the bridge deck will not damage the bridge deck, thus ensuring the quality during use. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 for Figure 1 A sectional view;

[0014] Figure 3 for Figure 2 A bottom view of the first horizontal plate, the third horizontal plate, and the longitudinal reinforcing bar;

[0015] Figure 4 for Figure 2 A schematic diagram of the mounting plate.

[0016] In the diagram: 1. First horizontal plate; 2. Adjustment mechanism; 21. Support plate; 211. Insertion rod; 22. Vertical rod; 23. High-strength screw; 24. First bevel gear; 25. Second bevel gear; 3. Buffer device; 31. Sleeve; 32. Insert rod; 33. High-strength spring; 4. Reinforcing mechanism; 41. Longitudinal reinforcing rod; 42. Transverse reinforcing rod; 43. Reinforcing diagonal rod; 5. Second horizontal plate; 6. Third horizontal plate; 7. Fourth horizontal plate; 8. Limiting rod; 9. Mounting plate; 10. Connecting plate; 11. Connecting rod. Detailed Implementation

[0017] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0019] When traditional modular steel bridges are used, in order to ensure that the bridge deck is level, a foundation layer needs to be laid before the construction. However, laying the foundation requires a large amount of sand and gravel, which slows down the overall construction speed. Moreover, the newly laid foundation is not well compacted and cannot provide good support, thus causing inconvenience to the workers.

[0020] In view of this, the present invention provides a temporary movable modular steel bridge suitable for heavy loads. Through the cooperation of the first horizontal plate, the third horizontal plate and the adjustment mechanism, the position and height of the first and second horizontal plates can be changed automatically according to the actual adjustment needs during the erection and installation process, so as to ensure that the bridge deck is in a flat state after erection, thereby improving the subsequent use quality. Moreover, it does not require workers to do too much pre-treatment of the roadbed, thus greatly reducing the workload of workers.

[0021] Example 1: By Figure 1 , 2As shown in sections 3 and 4, a temporary movable modular steel bridge suitable for heavy loads includes a first horizontal plate 1, a second horizontal plate 5 above the first horizontal plate 1, and third horizontal plates 6 attached to both sides of the first horizontal plate 1. Connecting rods 11 are fixedly connected to the bottom of both the first horizontal plate 1 and the third horizontal plate 6. Fourth horizontal plates 7 are attached to both sides of the second horizontal plate 5. Mounting plates 9 are inserted between the first horizontal plate 1 and the third horizontal plate 6, and between the second horizontal plate 5 and the fourth horizontal plate 7. Multiple mounting plates 9 are fixed to the outer walls of the first horizontal plate 1, the third horizontal plate 6, the second horizontal plate 5, and the fourth horizontal plate 7 by high-strength bolts. An adjustment mechanism 2 is provided below the first horizontal plate 1 and the third horizontal plate 6. The adjustment mechanism 2 includes multiple support plates 21, which are respectively installed on the first horizontal plate 1 and the two horizontal plates 6. Below the third horizontal plate 6, and fixedly connected to the bottom of the connecting rod 11 by high-strength bolts; multiple vertical rods 22 are provided, each inserted into the inner wall of multiple support plates 21; multiple high-strength screws 23 are provided, each rotatably connected to the inner wall of the support plate 21 by bearings, and their outer walls are threadedly connected to the inner walls of multiple vertical rods 22; multiple first bevel gears 24 are provided, each rotatably connected to the inner wall of multiple support plates 21 by bearings; multiple second bevel gears 25 are provided, each fixedly connected to the lower outer wall of multiple high-strength screws 23, and meshing with the outer walls of multiple first bevel gears 24; wherein, twisting the first bevel gears 24 drives the high-strength screws 23 through the second bevel gears 25, causing the vertical rods 22 to move along the inner wall of the support plate 21;

[0022] In the specific implementation process, it is worth noting that the materials of the high-strength screw 23, high-strength spring 33 and high-strength bolt can be selected from steel of Q420 or above, and the specific specifications are not limited. They can be selected according to the actual needs of use. When the first bevel gear 24 is turned, the second bevel gear 25 can be driven to move. In turn, the position between the vertical rod 22 and the support plate 21 can be changed through the high-strength screw 23 so as to adjust the erection height. During the erection, the workers can adjust the erection length of the bridge deck by increasing or decreasing the number of first horizontal plates 1 installed. The bottom of the vertical rod 22 is provided with a rectangular limiting plate to limit the vertical rod 22 and the support plate 21.

[0023] Furthermore, probe rods 211 are fixedly connected to the bottom of each of the multiple support plates 21;

[0024] In the specific implementation process, it is worth noting that the staff can insert the probe 211 into the foundation to improve the stability during the erection process;

[0025] Furthermore, a limiting rod 8 is inserted into the inner wall of the connecting rod 11, and the bottom of the limiting rod 8 is fixedly connected to the top of the vertical rod 22. The bottom of the first horizontal plate 1 and the third horizontal plate 6 are fixedly connected to the connecting plate 10 by high-strength bolts.

[0026] In the specific implementation process, it is worth noting that the limiting rod 8 can limit the connecting rod 11 and the vertical rod 22, while the connecting plate 10 can limit the installation of the first horizontal plate 1 and the third horizontal plate 6.

[0027] Specifically, when using this temporary movable modular steel bridge suitable for heavy loads, the workers first insert the probe rod 211 into the foundation. Then, according to the installation requirements, the first bevel gear 24 is turned, which drives the high-strength screw rod 23 to rotate through the second bevel gear 25. This changes the position between the vertical rod 22 and the support plate 21 to adjust the erection height. Next, the workers put the connecting rod 11 on the outer wall of the limiting rod 8, and then use high-strength bolts to install and fix the connecting rod 11 and the vertical rod 22. Then, the connecting plate 10 is used to fix the first horizontal plate 1 and the third horizontal plate 6. The mounting plate 9 is then inserted into the inner wall of the first horizontal plate 1, the third horizontal plate 6, the second horizontal plate 5, and the fourth horizontal plate 7, and then the mounting plate 9 is connected and fixed with high-strength bolts. At this point, the erection work is completed.

[0028] Example 2: From Figure 1 , 2 As can be seen from section 3, a reinforcing mechanism 4 is provided below the first horizontal plate 1 and the two third horizontal plates 6. The reinforcing mechanism 4 includes: a transverse reinforcing rod 42, which is fixedly connected to the bottom of the first horizontal plate 1 and the third horizontal plate 6; a longitudinal reinforcing rod 41, which is fixedly connected to the bottom of the first horizontal plate 1 and the third horizontal plate 6 and is fixedly connected to the outer wall of the transverse reinforcing rod 42; and a reinforcing diagonal rod 43, which is fixedly connected to the bottom of the first horizontal plate 1 and the third horizontal plate 6 and is fixedly connected to the outer wall of the connecting rod 11. The transverse reinforcing rod 42, the longitudinal reinforcing rod 41, and the reinforcing diagonal rod 43 can improve the strength of this device during use.

[0029] In the specific implementation process, it is worth noting that the transverse reinforcing bar 42, the longitudinal reinforcing bar 41, and the reinforcing diagonal bar 43 can improve the strength of the first horizontal plate 1 and the third horizontal plate 6. It should be noted that in actual use, transverse reinforcing bars 42 and longitudinal reinforcing bars 41 with similar structures can also be provided at the bottom of the second horizontal plate 5 and the fourth horizontal plate 7 to ensure the overall strength. It should be noted that the reinforcing mechanism 4 provided in this embodiment is only one possible implementation method to strengthen the components of this case, and not all embodiments. In the specific implementation process, other structures can also be adopted, and the selection of specific structures can be reasonably designed according to the actual situation.

[0030] Furthermore, a buffer device 3 is provided above the first horizontal plate 1 and the third horizontal plate 6. The buffer device 3 includes: multiple sleeves 31, which are fixedly connected to the top of the first horizontal plate 1 and the third horizontal plate 6 respectively; multiple insert rods 32, which are inserted into the inner wall of the multiple sleeves 31 and fixedly connected to the bottom of the second horizontal plate 5 and the fourth horizontal plate 7 respectively; and multiple high-strength springs 33, which are fixedly connected to the top of the first horizontal plate 1 and the third horizontal plate 6 respectively, and whose tops are fixedly connected to the bottom of the second horizontal plate 5 and the fourth horizontal plate 7 respectively. When the high-strength springs 33 are compressed, they will exert a reverse force on the second horizontal plate 5 and the fourth horizontal plate 7 to achieve buffer protection.

[0031] In the specific implementation process, it is worth noting that a damping pad should be provided between the sleeve 31 and the insertion rod 32. This can increase the friction between the sleeve 31 and the insertion rod 32, thereby consuming the elastic potential energy of the high-strength spring 33 and achieving a damping effect. The elastic coefficient of the high-strength spring 33 is not limited and can be selected according to the actual use requirements. In order to ensure the quality of use, the staff needs to maintain and replace the high-strength spring 33 regularly to avoid the phenomenon of decreased performance due to long-term use of the high-strength spring 33.

[0032] Specifically, based on the above embodiment one, when the transport vehicle reaches the top of this case, the second horizontal plate 5 and the fourth horizontal plate 7 can compress the high-strength spring 33, and the insertion rod 32 moves along the inner wall of the sleeve 31. At this time, the elastic potential energy of the high-strength spring 33 can achieve buffer protection.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A temporary movable modular steel bridge suitable for heavy loads, comprising a first transverse plate (1), characterized in that: A second horizontal plate (5) is provided above the first horizontal plate (1), and a third horizontal plate (6) is attached to both sides of the first horizontal plate (1). A connecting rod (11) is fixedly connected to the bottom of the first horizontal plate (1) and the third horizontal plate (6). A fourth horizontal plate (7) is attached to both sides of the second horizontal plate (5). Mounting plates (9) are inserted between the first horizontal plate (1) and the third horizontal plate (6) and between the second horizontal plate (5) and the fourth horizontal plate (7). Multiple mounting plates (9) are fixedly connected to the outer walls of the first horizontal plate (1), the third horizontal plate (6), the second horizontal plate (5), and the fourth horizontal plate (7) by high-strength bolts. An adjustment mechanism (2) is provided below the first horizontal plate (1) and the third horizontal plate (6). The adjustment mechanism (2) includes: Multiple support plates (21) are provided, respectively located below the first horizontal plate (1) and the two third horizontal plates (6), and are fixedly connected to the bottom of the connecting rod (11) by high-strength bolts. Multiple vertical rods (22) are provided and are respectively inserted into the inner walls of multiple support plates (21); Multiple high-strength screws (23) are provided, all of which are rotatably connected to the inner wall of the support plate (21) through bearings, and their outer walls are threadedly connected to the inner walls of multiple vertical rods (22); Multiple first bevel gears (24) are provided and are rotatably connected to the inner walls of multiple support plates (21) via bearings; Multiple second bevel gears (25) are provided and are respectively fixedly connected to the lower outer wall of multiple high-strength screws (23), and respectively mesh with the outer wall of multiple first bevel gears (24); The first bevel gear (24) is twisted to drive the high-strength screw (23) through the second bevel gear (25), which in turn drives the vertical rod (22) to move along the inner wall of the support plate (21).

2. A temporary movable modular steel bridge suitable for heavy loads according to claim 1, characterized in that: Each of the multiple support plates (21) has a probe rod (211) fixedly connected to its bottom.

3. A temporary movable modular steel bridge suitable for heavy loads according to claim 1, characterized in that: A limiting rod (8) is inserted into the inner wall of the connecting rod (11), and the bottom of the limiting rod (8) is fixedly connected to the top of the vertical rod (22). The bottom of the first horizontal plate (1) and the third horizontal plate (6) are fixedly connected by a connecting plate through high-strength bolts.

4. A temporary movable modular steel bridge suitable for heavy loads according to claim 1, characterized in that: A reinforcing mechanism (4) is provided below the first horizontal plate (1) and the two third horizontal plates (6), the reinforcing mechanism (4) comprising: A transverse reinforcing bar (42) is fixedly connected to the bottom of the first transverse plate (1) and the third transverse plate (6); The longitudinal reinforcing rod (41) is fixedly connected to the bottom of the first horizontal plate (1) and the third horizontal plate (6), and is fixedly connected to the outer wall of the transverse reinforcing rod (42); The reinforcing diagonal bar (43) is fixedly connected to the bottom of the first horizontal plate (1) and the third horizontal plate (6), and is fixedly connected to the outer wall of the connecting rod (11); The transverse reinforcing bar (42), longitudinal reinforcing bar (41), and reinforcing diagonal bar (43) can improve the strength of the case during use.

5. A temporary movable modular steel bridge suitable for heavy loads according to claim 1, characterized in that: A buffer device (3) is provided above the first horizontal plate (1) and the third horizontal plate (6), the buffer device (3) comprising: Multiple sleeves (31) are provided and are respectively fixedly connected to the top of the first horizontal plate (1) and the third horizontal plate (6); Multiple insertion rods (32) are provided and are respectively inserted into the inner walls of multiple sleeves (31), and are respectively fixed to the bottom of the second horizontal plate (5) and the fourth horizontal plate (7); Multiple high-strength springs (33) are provided and are fixedly connected to the top of the first horizontal plate (1) and the third horizontal plate (6), respectively, and their tops are fixedly connected to the bottom of the second horizontal plate (5) and the fourth horizontal plate (7); When the high-strength spring (33) is compressed, it will exert opposite forces on the second horizontal plate (5) and the fourth horizontal plate (7) to achieve buffer protection.

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