CN221215784U - Combined bridge structure - Google Patents

Abstract

The utility model discloses a combined type bridge passing structure which is used for bearing downward pressure of heavy truck vehicles and comprises a bridge passing assembly, a power part for driving the bridge passing assembly to move, rolling assemblies arranged on two sides of the bridge passing assembly and a guide rail contacted with the roller assemblies; the bridge passing assembly comprises a first bridge passing assembly, a second bridge passing assembly and a connecting piece for connecting the first bridge passing assembly and the second bridge passing assembly; the power part operates to drive the roller assemblies to move on the guide rails and drive the first bridge passing assembly and the second bridge passing assembly to synchronously move. The whole bridge assembly is arranged to be a first bridge assembly and a second bridge assembly, the first bridge assembly is connected with the second bridge assembly through the connecting piece, the force which is originally acted on one plate is dispersed to two plates, the safety and stability of the bridge assembly are improved, and the enough bearing capacity of the bridge assembly is ensured when large-sized vehicles such as heavy trucks enter the power exchange station.

Description

Combined bridge structure

Technical Field

The utility model relates to a bridge crossing device of a power exchange station, in particular to a combined bridge crossing structure.

Background

Along with the rapid development of electric vehicles, how to rapidly realize the energy supply of the electric vehicles, so that the electric vehicles are as convenient as the traditional fuel oil vehicles, is one of the important problems faced by the electric vehicle industry, and the problem is successfully solved by the occurrence of the power exchange station. The battery in the vehicle, which needs energy supplement, is replaced by the battery with full electricity in the battery compartment by the power exchanging station, and the replaced battery is sent into the battery compartment for charging.

After the electric vehicle enters the power exchange station, the electric vehicle gives way to the RGV trolley, so that the electric vehicle is convenient to take and place a battery, a bridge passing component is arranged in the power exchange station, and the bridge passing component gives way to the RGV trolley through movement. The bridge assembly that uses in the current power station that trades is a whole, and a monoblock span is too big, and a monoblock bridge assembly's atress is not good, and when trading the large-scale vehicle of heavy card etc. and trade the electricity, a monoblock bridge board's stability and bearing capacity are not enough, and the security is not high.

Disclosure of Invention

The utility model overcomes the defects of the prior art and provides a combined type gap bridge structure.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the combined type bridge passing structure is used for bearing downward pressure of heavy truck vehicles and comprises a bridge passing assembly, a power part for driving the bridge passing assembly to move, rolling assemblies arranged on two sides of the bridge passing assembly and a guide rail contacted with the roller assemblies; the bridge passing assembly comprises a first bridge passing assembly, a second bridge passing assembly and a connecting piece for connecting the first bridge passing assembly and the second bridge passing assembly; the power part operates to drive the roller assemblies to move on the guide rails and drive the first bridge passing assembly and the second bridge passing assembly to synchronously move.

Further specifically, the connecting piece is including setting up U type buckle on the first bridge module, setting up cardboard on the second bridge module and connect U type buckle and the connecting bolt of cardboard, the cardboard inserts in the opening of U type buckle.

More specifically, one connecting piece is arranged.

Further specifically, a shielding plate for shielding the connecting piece is arranged above the connecting piece, and two sides of the shielding plate are respectively contacted with the first bridge passing assembly and the second bridge passing assembly.

Further specifically, the first bridge passing assembly comprises a bridge passing plate and a bridge passing frame connected with the bridge passing plate, and the bridge passing plate is in contact with the wheels.

Further specifically, the second bridge component has the same structure as the first bridge component.

The guide rail is an h-shaped guide rail, and the h-shaped guide rail comprises a web, a first flange plate arranged on the web and extending to one side of the web, and a second flange plate arranged on the web and extending to two sides of the web; the second flange plates positioned on two sides of the web are respectively a connecting side connected with an external structure and a pressed side bearing pressure, and the first flange plates are positioned on the connecting side.

Further specifically, the rolling assembly comprises a roller seat arranged on the gap bridge assembly and a roller arranged on the roller seat, and the roller moves on the guide rail.

Further specifically, the roller is in contact with the h-shaped guide rail.

Further specifically, the power part comprises a power motor arranged on the bridge passing assembly, a power shaft driven by the power motor to rotate, power gears arranged at two ends of the power shaft and a power rack arranged on the steel frame and matched with the power gears, and the power motor drives the power gears to rotate so as to drive the bridge passing assembly to move along the power rack.

The utility model solves the defects existing in the background technology, and has the following beneficial effects:

The bridge passing assembly is arranged to move on the guide rail, and after the vehicle enters the power exchange station, the bridge passing assembly can be directly moved to the power exchange trolley to give way or allow the vehicle to pass through without lifting the vehicle; when the bridge passing assembly is arranged into a whole, the safety and the stability of the bridge passing assembly are not high, so that the whole bridge passing assembly is arranged into a first bridge passing assembly and a second bridge passing assembly which are separated, the first bridge passing assembly is connected with the second bridge passing assembly through a connecting piece, the force which is originally acted on one plate is dispersed onto the two plates, the safety and the stability of the bridge passing assembly are improved, and the enough bearing capacity of the bridge passing assembly is ensured when a large-sized vehicle such as a heavy truck enters a power exchange station.

Drawings

The utility model is further described below with reference to the drawings and examples;

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is an enlarged view of FIG. 1A in accordance with the present utility model;

FIG. 3 is a schematic perspective view of a second embodiment of the present utility model;

FIG. 4 is an enlarged view of FIG. 3B in accordance with the present utility model;

FIG. 5 is a schematic perspective view of a third embodiment of the present utility model;

FIG. 6 is a schematic perspective view of a connector of the present utility model;

FIG. 7 is a schematic side elevational view of the connector of the present utility model;

FIG. 8 is a schematic perspective view of a guide rail of the present utility model;

FIG. 9 is a schematic perspective view of a guide rail of the present utility model;

FIG. 10 is a schematic perspective view of a fourth embodiment of the present utility model;

FIG. 11 is an enlarged view of FIG. 10 at C in accordance with the present utility model;

Fig. 12 is a schematic perspective view of a power unit according to the present utility model;

In the figure: 1. a connecting piece; 11. u-shaped buckles; 12. a clamping plate; 13. a connecting bolt; 2. a gap bridge assembly; 21. a guide wheel; 22. an in-place detection sensor; 23. a gasket; 24. a first bridge assembly; 25. a second bridge assembly; 3. a power section; 31. a power motor; 32. a power shaft; 33. a power gear; 34. a power rack; 35. a shaft seat; 36. a drive gear; 37, respectively; a driven gear; 38. a dynamic bearing; 4. an h-shaped guide rail; 41. a first flange plate; 42. a second flange plate; 43. a web; 45. a limiting block; 46. a stiffness plate; 47. guide rail reinforcing ribs; 48. a first reinforcing plate; 49. a second reinforcing plate; 5. a rolling assembly; 51. a roller seat; 52. and a roller.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model become more apparent, the technical solutions in the embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings in the embodiments of the present utility model. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the utility model. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present utility model. Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

It should be understood that the drawings are for illustrative purposes only.

The utility model will now be described in further detail with reference to the drawings and examples, which are simplified schematic illustrations of the basic structure of the utility model, which are presented only by way of illustration, and thus show only the structures that are relevant to the utility model.

A combined bridge structure is shown in fig. 1-12, is used for bearing downward pressure of heavy truck and comprises a bridge assembly 2, a power part 3 for driving the bridge assembly 2 to move, rolling assemblies 5 arranged on two sides of the bridge assembly 2 and a guide rail contacted with the rolling assemblies 5.

When the axle assembly 2 is required to move, the power part 3 drives the axle assembly 2 to move, but when the axle assembly 2 is set to be complete, the stability and the safety are not high, in principle, the axle assembly is provided with four-wheel supports, more wheels are generally not contacted with the guide rails, and only the wheels for supporting bear the load after being pressed and deformed, but the large-sized vehicle such as a heavy truck is applied by the scheme, if the axle assembly is set to be a whole, if the bearing is 50T, the stress of a single wheel at least reaches 12.5T, the bearing capacity of an individual roller 52 needs to be calculated according to 20T, and the roller 52 needs to be quite large at the moment, so the axle assembly 2 is set to be two parts, the two parts of axle assemblies are respectively connected with the roller 52, and at the moment, the single group can be 25T, and the single roller can be at most 10T. The bridge assembly 2 comprises a first bridge assembly 24, a second bridge assembly 25 and a connecting piece 1, wherein the first bridge assembly 24 and the second bridge assembly 25 are arranged in a split mode; the bridge passing assembly 2 is arranged in two parts, so that the stability and the safety of the bridge passing assembly 2 can be improved, and when the power part 3 drives the bridge passing assembly, the first bridge passing assembly 24 and the second bridge passing assembly 25 which are arranged in a split manner synchronously move; the first bridge component 24 and the second bridge component 25 have the same structure, taking the first bridge component 24 as an example, the first bridge component 24 comprises a bridge plate and a bridge frame connected with the bridge plate, the bridge frame is used for enhancing the strength of the bridge plate and ensuring the stability of the heavy truck on the bridge component 2, the bridge frame is fixedly connected with the bridge plate, the bridge plate and the bridge frame synchronously move, and the bridge plate is in direct contact with wheels of the vehicle.

The connecting piece 1 comprises a U-shaped buckle 11 arranged on a first bridge passing assembly 24, a clamping plate 12 arranged on a second bridge passing assembly 25 and a connecting bolt 13 connected with the U-shaped buckle 11 and the clamping plate 12, wherein the clamping plate 12 is inserted into an opening of the U-shaped buckle 11, a first connecting hole is formed in the clamping plate 12, a second connecting hole is formed in the U-shaped buckle 11, the connecting bolt 13 penetrates through the first connecting hole and the second connecting hole to connect the U-shaped buckle 11 with the clamping plate 12, and the connecting bolt 13 is vertically arranged. The U-shaped buckle 11 may be replaced by a first buckle plate disposed on the first bridge assembly 24, a second buckle plate and a third buckle plate connected to the first buckle plate and disposed parallel to each other, and the buckle plate 12 is inserted between the second buckle plate and the third buckle plate.

The first bridge passing component 24 and the second bridge passing component 25 are connected together through the connecting piece 1, one, two or more connecting pieces 1 can be arranged, when one connecting piece 1 is arranged, the connecting piece 1 is arranged in the middle of one end, close to each other, of the first bridge passing component 24 and the second bridge passing component 25, connection reliability of the first bridge passing component 24 and the second bridge passing component 25 is guaranteed, the connecting bolt 13 is vertically arranged, and the first bridge passing component 24 and the second bridge passing component 25 can rotate around the connecting bolt 13 by arranging one connecting piece 1 so as to adapt to a bent guide rail; when the connecting piece 1 is provided with two or more connecting pieces, the connecting piece 1 is uniformly arranged at one end of the first bridge passing component 24 and the second bridge passing component 25, which are close to each other, so that the connection between the first bridge passing component 24 and the second bridge passing component 25 is ensured to be reliable, but when the two or more connecting pieces 1 are provided, the function of rotating around the connecting bolt 13 cannot be realized.

The first bridge component 24 and/or the second bridge component 25 are/is provided with shielding plates for shielding the connecting piece, the shielding plates extend towards the second bridge component 25 and are contacted with the second bridge component 25 when arranged on the first bridge component, the shielding plates extend towards the first bridge component 24 and are contacted with the second bridge component 24 when arranged on the first bridge component, and the two shielding plates extend towards one side close to each other and are contacted with the first bridge component 24 and the second bridge component 25 when the shielding plates are arranged on the first bridge component 24 and the second bridge component 25, and the upper surfaces of the shielding plates are flush with the upper surfaces of the first bridge component 24 and the second bridge component 25, so that vehicles can conveniently enter. Of course, the length of the two bridge plates can also be directly increased to cover the connecting piece 1. The shielding plate is arranged above the connecting piece 1, so that sediment on a vehicle can be prevented from falling off, and the sediment falls on the electricity changing trolley below the gap bridge assembly 2.

The guide rail is an h-shaped guide rail 4, and the h-shaped guide rail 4 comprises a first flange plate 41, a second flange plate 42 and a web 43 arranged between the first flange plate 41 and the second flange plate 42; the first flange plate 41, the second flange plate 42 and the web 43 are all straight plates, and the first flange plate 41 and the second flange plate 42 are parallel and oppositely arranged; one side of the web 43 is vertically connected with the first flange plate 41, and the other side is vertically connected with the second flange plate 42; the first flange 41 is used as an upper plate of the h-shaped guide rail 4, the second flange 42 is used as a lower plate of the h-shaped guide rail 4, and of course, the setting positions of the first flange 41 and the second flange 42 can be interchanged; after the web 43 is vertically connected to the first flange plate 41 and the second flange plate 42, the two sides of the web 43 are respectively a pressed side and a connection side, the connection side is used for being connected with an external structure, the pressed side is used for being connected with a part which needs to move on a guide rail, the external structure is a steel frame, when pressure exists on the h-shaped guide rail 4, the first flange plate 41 on the pressed side is bent to influence the rotation of the moving wheel 21, therefore, the second flange plate 42 horizontally extends to the pressed side and the connection side of the web 43, the first flange plate 41 only horizontally extends to the connection side of the web 43, the first flange plate 41 is not arranged on the pressed side, the first flange plate 41 on the pressed side can be cut after the complete h-shaped guide rail 4 is manufactured, a part of the pressed side can be not made during the molding, and the molding mode is not limited as long as the first flange plate 41 does not bend to influence the movement of other parts during the pressing on the pressed side.

Because the h-shaped guide rail 4 has a large volume and is inconvenient to replace, a detachable rigidity plate 46 is arranged on the second flange plate 42 on the pressure side.

In order to increase the strength of the h-shaped guide rail 4, a first reinforcing plate 48 is arranged on one side, far away from the web 43, of the first flange plate 41, two side edges of the first reinforcing plate 48 are flush with two side edges of the first flange plate 41, a second reinforcing plate 49 is arranged on one side, far away from the web 43, of the second flange plate 42, two side edges of the second reinforcing plate 49 are flush with two side edges of the second flange plate 42, and the strength of the first flange plate 41 and the strength of the second flange plate 42 can be enhanced by the first reinforcing plate 48 and the second reinforcing plate 49, so that the damage of the h-shaped guide rail 4 is reduced. The web 43 is provided with guide rail reinforcing rib 47 in the connection side, guide rail reinforcing rib 47 all is connected with first flange board 41, second flange board 42, guide rail reinforcing rib 47 sets up a plurality of, and even setting is in on the h type guide rail 4, reinforcing the intensity of h type guide rail 4 avoids h type guide rail 4 damages.

The two sides of the bridge passing assembly 2 are provided with rolling assemblies 5, in order to ensure that the rolling assemblies 5 support the bridge passing assembly 2 in a rolling manner, the rolling assemblies 5 on one side of the bridge passing assembly 2 are at least two, and are uniformly distributed on one side of the bridge passing assembly 2, in the scheme, the rolling assemblies 5 on one side of the bridge passing assembly 2 are four, and the rolling assemblies 5 drive the bridge passing assembly 2 to move along the h-shaped guide rail 4. The rolling assembly 5 comprises a roller seat 51 arranged on the gap bridge assembly 2 and a roller 52 arranged on the roller seat 51, the roller 52 moves on the h-shaped guide rail 4, the roller 52 is in contact with the rigidity plate 46 of the h-shaped guide rail 4, the strength of the roller 51 is larger than that of the rigidity plate 46, the rigidity plate 46 can be directly replaced in the subsequent use process, and the operation is convenient.

The two sides of the gap bridge assembly 2 are further provided with guide wheels 21, the guide wheels 21 are in contact with the side edges of the second flange plates 42, so that damage of the guide wheels 21 to the h-shaped guide rails 4 is effectively prevented, the guide wheels 21 are in contact with the side surfaces of the rigid plates 46, the guide wheels 21 play a guide role for the gap bridge assembly 2, and deflection in the moving process is prevented. At least two guide wheels 21 are arranged and uniformly arranged on the gap bridge assembly 2 to guide the gap bridge assembly 2.

Limiting blocks 45 are arranged at two ends of the h-shaped guide rail 4 to prevent the bridge passing assembly 2 from being separated from the h-shaped guide rail 4 in the moving process, an in-place detection sensor 22 for detecting the position of the bridge passing assembly 2 is arranged on the bridge passing assembly 2, and the in-place detection sensor 22 is arranged at one end, close to the limiting blocks 45, of the bridge passing assembly 2 and is used for detecting whether the bridge passing assembly 2 moves in place or not; the in-place detection sensor 22 may be provided as a ranging sensor, a proximity sensor, an in-place sensor, or the like. In order to detect the position of the bridge assembly 2 and facilitate the next action, if the in-place detection sensor 22 detects the limiting block 45, the bridge assembly 2 is moved to the in-place state, and the power part 3 stops moving the bridge assembly 2; if the stop block 45 is not detected by the in-place detection sensor 22, the bridge assembly 2 needs to be kept moving. If the in-place detection sensor 22 detects the limiting block 45, the bridge assembly 2 does not stop moving, and further movement of the bridge assembly 2 is limited due to the limiting block 45, so that the bridge assembly 2 is effectively prevented from being separated from the h-shaped guide rail 4. In order to prevent the gap bridge assembly 2 from being impacted with the limiting block 45 directly in the moving process of the gap bridge assembly 2, a gasket 23 is arranged on the gap bridge assembly 2, and when the gap bridge assembly 2 is in contact with the limiting block 45, the damage of the limiting block 45 to the gap bridge assembly 2 is reduced through the gasket 23.

The power part 3 comprises a power motor 31 arranged on the gap bridge assembly 2, a power shaft 32 driven by the power motor 31 to rotate, power gears 33 arranged at two ends of the power shaft 32, and a power rack 34 arranged on a steel frame and matched with the power gears 33; a driving gear 36 is arranged on the power motor 31, a driven gear 37 is arranged on the power shaft 32, the driving gear 36 is meshed with the driven gear 37, the driving gear 36 drives the driven gear 37 to rotate, and the power shaft 32 is synchronously driven to rotate; a plurality of shaft seats 35 are uniformly arranged on the gap bridge assembly 2, power bearings 38 are fixedly arranged on the shaft seats 35, and the power shaft 32 passes through the plurality of power bearings 38 and rotates in the power bearings 38; the two ends of the power shaft 32 are provided with power gears 33, when the power shaft 32 rotates, the power gears 33 are driven to move on the power racks 34, two power gears 33 are respectively arranged on two sides of the power shaft 32 for better ensuring the movement of the gap bridge assembly 2, the arrangement mode is the same as that of the structure, a first power gear is connected with the power shaft 32, a second power gear is meshed with the second power gear and meshed with the power racks 34, the power shaft 32 drives the first power gear to rotate, and the first power gear drives the second power gear to move on the power racks 34 and synchronously drives the gap bridge assembly 2 to move.

In summary, the first bridge passing component 24 and the second bridge passing component 25 which are formed by arranging a whole bridge passing component 2 into a split structure are connected through the connecting piece 1, so that the vehicle-mounted situation can be fitted, the force originally acted on one plate is dispersed to the two plates, the safety and the stability of the bridge passing component 2 are improved, and the enough bearing capacity of the bridge passing component 2 is ensured when a large-sized vehicle such as a heavy truck enters the power exchange station; the shielding plate is arranged to prevent wheels from sinking and prevent sediment on the vehicle from falling onto the power changing trolley; the connecting piece 1 is provided with one connecting piece, so that the first bridge passing component 24 and the second bridge passing component 25 can rotate around the connecting bolt 13 in a small range to adapt to a bent guide rail; the h-shaped guide rail 4 is arranged, the first flange plate 41 on the original pressure side is cut or not arranged, and when a subsequent heavy vehicle enters a power exchange station, the first flange plate 41 on the pressure side cannot be bent due to overlarge pressure, so that the movement of the roller 52 is influenced, and the movement of the gap bridge assembly 2 is influenced; the guide wheels 21 are arranged to ensure that the bridge assembly 2 moves according to the set direction; the in-place detection sensor 22 is arranged, so that the moving position of the bridge assembly 2 is known in time, and the next step is convenient to carry out.

The above-described preferred embodiments according to the present utility model are intended to suggest that, from the above description, various changes and modifications can be made by the person skilled in the art without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.

The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present utility model within the scope of the technical concept of the present utility model, and all the simple modifications belong to the protection scope of the present utility model.

In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.

Moreover, any combination of the various embodiments of the utility model can be made without departing from the spirit of the utility model, which should also be considered as disclosed herein.

Claims (10)

1. A modular bridge construction for bearing downward pressure of a heavy truck vehicle, characterized by: the device comprises a bridge passing assembly (2), a power part (3) for driving the bridge passing assembly (2) to move, rolling assemblies (5) arranged at two sides of the bridge passing assembly (2), and guide rails contacted with the rolling assemblies (5); the bridge assembly (2) comprises a first bridge assembly (24), a second bridge assembly (25) and a connecting piece (1) for connecting the first bridge assembly (24) and the second bridge assembly (25), wherein the first bridge assembly (24) and the second bridge assembly (25) are arranged in a split mode, and rolling assemblies (5) are arranged on the first bridge assembly (24) and the second bridge assembly (25); the power part (3) operates to drive the rolling assembly (5) to move on the guide rail and drive the first bridge passing assembly (24) and the second bridge passing assembly (25) which are arranged in a split mode to move synchronously.

2. The modular bridge construction of claim 1, wherein: the connecting piece (1) comprises a U-shaped buckle (11) arranged on the first bridge passing component (24), a clamping plate (12) arranged on the second bridge passing component (25) and a connecting bolt (13) for connecting the U-shaped buckle (11) and the clamping plate (12), wherein the clamping plate (12) is inserted into an opening of the U-shaped buckle (11).

3. The modular bridge construction of claim 2, wherein: when the connecting bolts are vertically arranged, one connecting piece (1) is arranged.

4. The modular bridge construction of claim 1, wherein: a shielding plate for shielding the connector (1) is arranged on the first bridge passing assembly (24), extends towards the second bridge passing assembly (25) and is in contact with the second bridge passing assembly (25).

5. The modular bridge construction of claim 1, wherein: the first bridge assembly (24) comprises a bridge frame and a bridge passing plate arranged on the bridge frame, and the second bridge assembly (25) has the same structure as the first bridge assembly (24).

6. The modular bridge construction of claim 1, wherein: the guide rail is an h-shaped guide rail (4), and the h-shaped guide rail (4) comprises a web plate (43), a first flange plate (41) arranged on the web plate (43) and extending to one side of the web plate (43), and a second flange plate (42) arranged on the web plate (43) and extending to two sides of the web plate (43); the second flange plates (42) located on both sides of the web (43) are respectively a connection side connected with an external structure and a compression side bearing pressure, and the first flange plates (41) are located on the connection side.

7. The modular bridge construction of claim 6, wherein: a detachable stiffness plate (46) is arranged on the pressure side of the second flange plate (42).

8. The modular bridge construction of claim 7, wherein: the rolling assembly (5) comprises a roller seat (51) arranged on the gap bridge assembly (2) and a roller (52) arranged on the roller seat (51), and the roller (52) moves on the h-shaped guide rail (4).

9. The modular bridge construction of claim 8, wherein: the roller (52) is in contact with a stiffness plate (46) of the h-shaped guide rail (4).

10. The modular bridge construction of claim 1, wherein: the power part (3) comprises a power motor (31) arranged on the gap bridge assembly (2), a power shaft (32) driven by the power motor (31), power gears (33) arranged at two ends of the power shaft (32) and a power rack (34) arranged on a steel frame and matched with the power gears (33), wherein the power motor (31) drives the power gears (33) to rotate so as to drive the gap bridge assembly (2) to move along the power rack (34).