Vehicle body structure of lightweight straddle-type articulated monorail vehicle

Abstract

A vehicle body structure of a lightweight straddle-type articulated monorail vehicle, comprising an underframe (1), side walls (2, 3), a roof (4), a cab (6), and an end wall (5), wherein from a first end to a second end, the underframe (1) is sequentially provided with a coupler mounting seat (13), an underframe end beam (19), a first-end bogie wheel compartment frame (14), an underframe floor (12), underframe edge beams (11), and a second-end bogie wheel compartment frame (17); a non-centralized bearing area of the underframe (1) is formed by assembling and welding the underframe edge beams (11) and the underframe floor (12) that is made of an aluminum profile; the centralized bearing parts of the underframe (1) are respectively formed by assembling and welding high-strength alloy steel components. The whole vehicle body structure is simple, and the components are highly modularized, thereby being conducive to improving the production efficiency. The parts such as the coupler mounting seat (13), a traction rod seat (110) and the cab (6) respectively are of a carbon steel structure, force is dispersed and uniformly transmitted to the underframe floor (12) in a multi-point riveting mode, and the other main structures are made of a hollow aluminum alloy profile, thereby further reducing the weight of the vehicle body, being conducive to product quality control and weight reduction of the vehicle body, and both satisfying the requirements for light weight and high strength.

Description

Lightweight straddle type hinged monorail vehicle body structure TECHNICAL FIELD

[0001] The present application relates to the technical field of hinged straddle type monorail, in particular to a lightweight straddle type hinged monorail vehicle body structure. BACKGROUND

[0002] Straddle type monorail is a medium and low volume urban rail transit system, compared with the traditional urban rail transit system, straddle type monorail has the advantages of flexible layout, small turning radius, high space utilization, less capital investment, short construction period, excellent climbing ability, etc., and has good popularization and application prospect.

[0003] The commonly used rail transit vehicle body materials are carbon steel, stainless steel and aluminum alloy. The stainless steel vehicle body has advantages in corrosion resistance and maintenance-free, but the stainless steel thermal material process is poor, the sheet metal and welding process is difficult, and the structure has poor air tightness. The carbon steel vehicle body structure has low cost, but has great disadvantages in corrosion resistance, weight, etc., the number of parts and the number of welds are large, and the structure has low automation degree.

[0004] Aluminum alloy material has excellent corrosion resistance, low density and good strength, can greatly reduce the weight of the vehicle, has excellent forming processing performance, high surface quality and elegant appearance, can use riveting, arc welding and other connection methods, and has high flexibility in structure design.

[0005] Through retrieval, it is found that Chinese patent application CN115771536A discloses a guide rail type rubber wheel rapid transit system vehicle body structure, which comprises a chassis, end walls, side walls, a roof and end walls. The chassis is a carbon steel beam arrangement structure, the side walls, end walls and roof are formed by arc welding of aluminum alloy profiles, and each component is formed by riveting with rivets. The chassis beam arrangement structure has low cost and fast production, but the steel chassis has large welding thermal deformation, high weight and easy corrosion. The passenger compartment interior floor bears the vertical load of passengers, which requires high strength of the interior floor, and is not conducive to the energy consumption of the whole vehicle and the wear of the rail brake pad.

[0006] Chinese patent application CN115214731A discloses a hinged straddle type monorail vehicle middle frame, which comprises a chassis, end walls, side walls, a roof and a hinge seat. Each component is fixedly welded together. The hinge seat and the chassis are riveted together. This hinged straddle type monorail vehicle body structure is simple, light in weight and low in production cost, but the whole vehicle adopts a carbon steel welded structure, which has large deformation after welding, high weight and complex whole vehicle construction process, which is not conducive to modular production.

[0007] It can be seen that the prior art adopts a pure carbon steel structure in the chassis area, and the vehicle body weight is relatively high, which is not conducive to green and lightweight production. How to achieve less parts, lightweight, green, reduce production cost and improve production efficiency while meeting the strength requirement of the vehicle body structure is a problem to be solved in the field. TECHNICAL PROBLEM

[0008] To solve the problems in the related art, the present application provides a vehicle body structure of a lightweight straddle type articulated monorail vehicle, which can comprehensively solve the above problems and balance lightweight and high strength requirements. TECHNICAL SOLUTION

[0009] To this end, the present application adopts the following specific technical solutions: a vehicle body structure of a lightweight straddle type articulated monorail vehicle, comprising a chassis, a side wall and a roof, the chassis is composed of a chassis floor and a chassis side beam, characterized in that the chassis is sequentially provided with a coupler mounting seat, a chassis end beam, a one-end bogie wheel compartment frame, a chassis floor and a chassis side beam, a two-end bogie wheel compartment frame from a one-end to a two-end, wherein,

[0010] The coupler mounting seat is a symmetrical box structure, and the middle part has a coupler mounting plate for fixing the coupler, the rear end face of the coupler mounting seat is riveted and fixed with the chassis end beam, so that the longitudinal force received by the coupler mounting seat is transmitted to the chassis floor through the chassis end beam;

[0011] The one-end bogie wheel compartment frame is composed of aluminum alloy profiles and is welded or riveted with the chassis floor;

[0012] The two-end bogie wheel compartment frame is composed of alloy steel plates and bent pieces, and the articulated bogie mounting frame is a structure composed of alloy steel beams and cast steel pieces, and the two are connected by welding and then connected with the chassis floor by rivets, so that the load in the bogie area is stably transmitted to the chassis floor;

[0013] The lower part of the side wall has a side wall lower beam, the chassis side beam is overlapped on the side wall lower beam and fixed by rivets, and the bogie air spring mounting seat is connected with the chassis side beam and the side wall lower beam by bolts to bear the vertical load of the whole vehicle;

[0014] The chassis floor bottom is provided with a bogie traction rod seat close to the one-end bogie wheel compartment frame, the vehicle body transmits the bogie traction force to the chassis floor of the vehicle body through the bogie traction rod seat to drive the whole vehicle to move, and the traction force is transmitted to the subsequent trailer vehicle through the articulated bogie mounting frame to realize the movement of the marshalling vehicle.

[0015] Further, a driver's room is fixed above one end of the chassis floor, the driver's room comprises a driver's room frame composed of a driver's room end beam, an air-tight wall and a driver's room side beam, small side beams of the chassis are arranged on both sides of the one end of the chassis and welded to the side of the chassis side beam, the side wall has door uprights and side wall end uprights, the driver's room side beam falls on the small side beam of the chassis and is fixed by welding, the driver's room side beam, the small side beam of the chassis, the lower side beam of the side wall and the side wall end uprights are riveted and fixed through a transition connecting plate to locally reinforce the structure.

[0016] Further, the chassis concentrated load-carrying area is formed by butt welding of the chassis side beam and the chassis floor of aluminum profile, and the chassis concentrated load-carrying part is formed by butt welding of high-strength alloy steel, the chassis concentrated load-carrying part comprises the coupler mounting seat, the one-end bogie wheel compartment frame and the two-end bogie wheel compartment frame.

[0017] Further, the side wall comprises one-side side walls and two-side side walls, the one-side side walls and the two-side side walls are symmetrically distributed on both sides about the center line of the vehicle, and the roof is overlapped on the one-side side walls and the two-side side walls and connected by riveting.

[0018] Further, the lower side beam web area of the side wall is provided with a side wall lower flange, the web area of the chassis side beam is provided with a chassis lower flange, the side wall lower flange and the chassis lower flange are in the same plane to provide an installation interface for the under-vehicle equipment.

[0019] Further, the main part of the roof is formed by butt welding of the roof side beam and the dome plate, end sealing plates are arranged at the end portions of the roof, symmetrical air conditioner mounting beams are arranged in the air conditioner area to form an air conditioner mounting frame, and the roof plate variable cross-section area is transitioned through the sealing plates; the roof is overlapped on the side wall upper beam through the roof side beam and fixed by riveting.

[0020] The vehicle body structure of the light-weight straddle-type articulated monorail vehicle further has an end wall at the two-end, the main part of the end wall is an aluminum plate, and a through hole is arranged on the aluminum plate to provide a mounting surface for the through hole; a reinforcing beam is welded on the upper part of the aluminum plate, and a glue groove is arranged on the aluminum plate for sealing after riveting the side wall.

[0021] In addition, the application also claims to protect a light-weight straddle-type articulated monorail vehicle, which is characterized by the vehicle body structure. Advantages

[0022] Compared with the prior art, the application has the following advantages:

[0023] 1. The overall structure is simple, the utilization rate of the under-vehicle space is high, and the bogie and tire area is easy to avoid; the modularization degree of each component is high, each component has good production independence and universal interchangeability; the number of parts of each component is small, and the automatic degree of welding is high, which is conducive to improving the production efficiency.

[0024] 2, The carbon steel structure is used for the car coupler seat, the traction rod seat, the driver's room and the like, force is evenly dispersed and transmitted to the underframe floor through the multi-point riveting mode, the rest of the main structure is the hollow aluminum alloy profile, the vehicle body weight is further reduced, the product quality control and the vehicle body weight reduction are beneficial, and the light weight and the high strength requirements are considered.

[0025] 3, The riveting structure is used for the vehicle body parts, the production difficulty is reduced, and the green production and assembly are realized.

[0026] 4, The driver's room framework of the application is a semi-open type, the framework occupies small space, meets the collision requirements, provides the installation interface for the driver's room mask, and has little influence on the driver's room modeling. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical scheme in the embodiments of the application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced below, and obviously, the drawings in the following description can only be some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0028] Fig. 1 is a schematic view of the vehicle body structure of the vehicle body structure according to the embodiment of the application:

[0029] Fig. 2 is a partial enlarged view of A in Fig. 1:

[0030] Fig. 3 is a schematic view of the underframe structure according to the vehicle body structure of the embodiment of the application:

[0031] Fig. 4 is a partial enlarged view of C in Fig. 3:

[0032] Fig. 5 is a bottom view of the underframe structure:

[0033] Fig. 6 is a schematic view of the side wall structure in the vehicle body structure according to the embodiment of the application:

[0034] Fig. 7 is a partial enlarged view of B in Fig. 6.

[0035] Fig. 8 is a schematic view of the roof structure in the vehicle body structure according to the embodiment of the application.

[0036] Fig. 9 is a schematic view of the end wall structure in the vehicle body structure according to the embodiment of the application.

[0037] Fig. 10 is a schematic view of the driver's room structure in the vehicle body structure according to the embodiment of the application.

[0038] Fig. 11 is a schematic view of the position relationship between the driver's room and the underframe and the side wall:

[0039] Fig. 12 is a schematic view of the main structure section of the vehicle body:

[0040] Fig. 13 is a partial enlarged view of Fig. 12 at F:

[0041] Fig. 14 is a partial enlarged view of Fig. 12 at G:

[0042] Reference signs are shown as follows:

[0043] 1, underframe; 2, one-side wall; 3, two-side wall; 4, roof; 5, end wall; 6, cab; 11, underframe side beam; 111, underframe lower flange; 12, underframe floor; 13, coupler mounting seat; 14, one-side end bogie wheel compartment frame; 15, articulated bogie mounting frame; 16, bogie air spring mounting seat; 17, two-side end bogie wheel compartment frame; 18, underframe small side beam; 19, underframe end beam; 110, bogie traction rod mounting seat; 21, door upright column; 22, side wall end upright column; 23, side wall upper side beam; 24, side wall lower side beam; 241, side wall lower flange; 26, window mounting interface; 27, interface for built-in seat; 28, door mounting interface; 29, outer unlocking mounting interface; 31, end sealing plate; 32, roof side beam; 33, air conditioner mounting beam; 34, sealing plate; 35, dome plate; 36, air conditioner mounting seat; 41, aluminum plate; 42, reinforcing beam; 43, rubber groove; 44, opening in passing platform; 51, cab end beam; 52, bent reinforcing longitudinal beam; 53, air-tight wall; 54, cab side beam; 55, bent reinforcing transverse beam; 01, transition connecting plate; 03, cab mask mounting seat. Best mode of the present application

[0044] To further illustrate the embodiments, the present application provides drawings, which are part of the disclosure of the present application, mainly used to illustrate the embodiments, and can be used to explain the operating principle of the embodiments in conjunction with the related description of the specification. Those of ordinary skill in the art should understand other possible implementations and advantages of the present application by referring to these contents. The components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0045] The vehicle body structure shown in Figure 1 is composed of a chassis 1, a first side wall 2, a second side wall 3, a roof 4, an end wall 5 and a cab 6. The first side wall 2 and the second side wall 3 are symmetrically distributed on both sides of the vehicle about the center of the vehicle and are connected to the chassis by rivets. The cab 6 and the end wall 5 are distributed on the first end and the second end of the vehicle, and the roof 4 and the chassis 1 are placed on the top and the bottom respectively. Each component is fixed by riveting to form a vehicle body frame. In the exposed area, a structure is provided with a glue groove for sealing the vehicle body with structural glue to prevent water from entering from the outside. The chassis 1 is provided with a coupler mounting seat 13, a chassis end beam 19, a first end bogie wheel compartment frame 14, a chassis floor 12 and a chassis side beam 11 from the first end to the second end, and a second end bogie wheel compartment frame 17. The chassis side beam 11 and the aluminum chassis floor 12 are selected to be tailor-welded in the concentrated load bearing area of the chassis 1, and the concentrated load bearing part of the chassis 1 is selected to be tailor-welded with high-strength alloy steel. The concentrated load bearing part of the chassis 1 includes the coupler mounting seat 13, the first end bogie wheel compartment frame 14 and the second end bogie wheel compartment frame 17.

[0046] As shown in Figures 2 and 11, the cab 6 is above the chassis 1, the cab side beam 54 is welded with the chassis small side beam 18, and the transition connecting plate 01 connects the cab side beam 54, the chassis small side beam 18, the side wall lower side beam 24 and the side wall end column 22, and the structure is locally reinforced by rivet connection. The end wall 5 overlaps the roof 4, the side walls 2 and 3 and the chassis, and the components are connected by riveting.

[0047] The vehicle body transmits the traction force of the bogie to the chassis floor 12 through the bogie traction rod seat 110, thereby driving the whole vehicle to move. The traction force is transmitted to the subsequent trailer through the articulated bogie mounting frame 15 to realize the movement of the marshalling vehicle. The bogie air spring mounting seat 16 is connected to the chassis side beam 11 and the side wall lower side beam 24 by bolts to bear the vertical load of the whole vehicle. The first end bogie wheel compartment frame 14 and the second end bogie wheel compartment frame 17 form a wheel compartment space to provide sufficient movement space for the bogie.

[0048] In order to ensure that the chassis 1 has light weight and high carrying capacity, the chassis 1 is selected to be made of the chassis side beam 11 and the aluminum profile floor 12 by spot welding in the non-concentrated load bearing area. The chassis side beam 11 is T-shaped, and is provided with a flange connected with the side wall by riveting and a device under the vehicle supporting flange. In the concentrated load bearing parts such as the coupler mounting seat 13 and the articulated bogie mounting frame 15, high-strength alloy steel is selected to be made by spot welding. For the parts with particularly complex shapes, cast steel parts are selected to be made by spot welding together with high-strength alloy steel. The coupler mounting seat 13 is a symmetrical triangular box structure, and is provided with a reinforcing rib inside. The coupler mounting plate is connected with the two triangular box structures on both sides. The mounting seat structure is made of high-strength alloy steel by spot welding. The one-end bogie wheel compartment frame 14 is made of three blocks of I-shaped aluminum alloy profiles by spot welding. In order to ensure the strength of the frame, the profiles are provided with inclined ribs inside. The one-end bogie wheel compartment frame 14 is connected with the chassis floor 12 by welding. The bogie air spring mounting seat 16 is a rigid and strong cast steel part, which has sufficient impact resistance and strength. The bogie air spring mounting seat 16 is connected with the chassis 1 by bolts, and is convenient for later maintenance and renovation. The bogie wheel compartment frame 17 is made of alloy steel plates and bent parts by spot welding. The articulated bogie mounting frame 15 is made of alloy steel plate beams and cast steel parts by spot welding. After the two are connected by welding, they are connected with the floor 12 by riveting. By increasing the riveting points, the load of the bogie area is stably transmitted to the floor 12, and the structure as a whole bears the load.

[0049] As shown in FIG. 6, in order to ensure the modal and strength of the whole vehicle, the side walls 2 and 3 are each provided with two door uprights 21 and two side wall end uprights 22. The door upright 21 is welded with the upper side wall beam 23 and the lower side wall beam 24 to form a door frame structure, which provides a door mounting interface. Due to the thickness of the door upright and the design of the internal rib plate, the door frame structure has sufficient strength. The lower side wall beam 24 is provided with a lower flange 241 at the lower web area. The web area of the chassis side beam 11 is provided with a lower flange 111. The lower flange 241 of the side wall and the lower flange 111 of the chassis are in the same plane, which provides a supporting plane for the equipment under the vehicle and ensures that the equipment has sufficient safety redundancy.

[0050] As shown in FIG. 8, the roof is made of the roof side beam 32 and the dome plate 35 by spot welding. The end part is provided with an end sealing plate 31. The air conditioner mounting beams 33 are symmetrically arranged in the air conditioner area to form an air conditioner mounting frame. The roof plate variable cross-section area is transitioned by the sealing plate 34.

[0051] As shown in FIG. 9, in order to maximize the light weight, the end wall is a piece of aluminum plate 41. In order to improve the rigidity, a reinforcing beam 42 is welded on the upper part of the end wall to improve the rigidity of the end wall and avoid plastic deformation of the end wall under the load. The end wall is provided with a glue groove 43 for sealing by riveting after the side wall.

[0052] As shown in Fig. 10, the cab end beam 51, the air-tight wall 53 and the cab side beam 54 form the cab frame, which is made of a spliced and welded aluminum alloy profile in the shape of a Japanese character. The bent reinforcing longitudinal beam 52 and the bent reinforcing transverse beam 55 are added inside the frame to ensure the strength of the skeleton, meet the strength requirement of the cab and provide a bonding installation surface for the interior floor.

[0053] As shown in Fig. 13, the roof is lapped on the side wall upper beam 23 through the roof side beam 32 and is fixed by riveting. As shown in Fig. 14, the chassis side beam 11 is lapped on the side wall lower beam 24 through the flanging and is connected by rivets.

[0054] In the present application, unless otherwise clearly specified and limited, the terms "mounting", "arranging", "connecting", "fixing", "screwing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or can be integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited, the above-mentioned terms in the present application can be understood according to the specific meaning of the above-mentioned terms in the present application by those skilled in the art according to the specific circumstances.

[0055] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A lightweight straddle-type articulated monorail vehicle body structure comprising a chassis (1), side walls (2, 3) and a roof (4), the chassis (1) being tailor-welded from a chassis floor (12) and chassis side beams (11), characterized in that, The bottom frame (1) is sequentially provided with a coupler mounting seat (13), a bottom frame end beam (19), a one-end bogie wheel cabin frame (14), a bottom frame floor (12), a bottom frame side beam (11) and a two-end bogie wheel cabin frame (17) from a one-end to a two-end, wherein, The coupler mounting seat (13) is a symmetrical box structure, and a coupler mounting plate for fixing a coupler is arranged in the middle part of the coupler mounting seat (13). The rear end surface of the coupler mounting seat (13) is riveted and fixed with the bottom frame end beam (19), so that the longitudinal force received by the coupler mounting seat (13) is transmitted to the bottom frame floor (12) through the bottom frame end beam (19); The one-end bogie wheel cabin frame (14) is made of aluminum alloy profiles by spot welding, and is welded or riveted and fixed with the bottom frame floor (12); The two-end bogie wheel cabin frame (17) is made of alloy steel plates and bent pieces by spot welding. The articulated bogie mounting frame (15) is a spot-welded structure of an alloy steel beam and a cast steel piece. After being connected by welding, the two-end bogie wheel cabin frame (17) and the articulated bogie mounting frame (15) are riveted and connected with the bottom frame floor (12), so that the load of the bogie area is stably transmitted to the bottom frame floor (12); The lower part of the side wall (2, 3) is provided with a side wall lower edge beam (24), the bottom frame side beam (11) is overlapped on the side wall lower edge beam (24) and is fixed by rivets. The bogie air spring mounting seat (16) is connected with the bottom frame side beam (11) and the side wall lower edge beam (24) by bolts, and bears the vertical load of the whole vehicle. The bottom frame floor (12) is provided with a bogie traction rod seat (110) close to the one-end bogie wheel cabin frame (14) at the bottom. The bogie traction force is transmitted to the bottom frame floor (12) of the vehicle body through the bogie traction rod seat (110), so as to drive the whole vehicle to move. The bogie traction force is transmitted to the subsequent towed vehicle through the articulated bogie mounting frame (15), so as to realize the movement of the coupled vehicles.

2. The vehicle body structure of a lightweight straddle-type articulated monorail vehicle according to claim 1, characterized by The driver's cabin (6) is fixed above the one-end of the bottom frame floor (12). The driver's cabin (6) comprises a driver's cabin frame composed of a driver's cabin end beam (51), an air-tight wall (53) and a driver's cabin side beam (54). The one-end of the bottom frame (1) is provided with a bottom frame small side beam (18) welded on the side of the bottom frame side beam (11). The side wall (2, 3) is provided with a door upright column (21) and a side wall end upright column (22). The driver's cabin side beam (54) is overlapped on the bottom frame small side beam (18) and is fixed by welding. The driver's cabin side beam (54), the bottom frame small side beam (18), the side wall lower edge beam (24) and the side wall end upright column (22) are riveted and fixed by a transition connecting plate (01), so as to locally reinforce the structure.

3. The vehicle body structure of a lightweight straddle-type articulated monorail vehicle according to claim 1, characterized by The bottom frame (1) is made of the bottom frame side beam (11) and the aluminum profile bottom frame floor (12) by spot welding. The concentrated load bearing part of the bottom frame (1) is made of high-strength alloy steel by spot welding. The concentrated load bearing part of the bottom frame (1) comprises the coupler mounting seat (13), the one-end bogie wheel cabin frame (14) and the two-end bogie wheel cabin frame (17).

4. The vehicle body structure of a lightweight swing-straddle monorail vehicle according to claim 1, characterized by The side wall (2, 3) includes a one-side wall (2) and a two-side wall (3), which are symmetrically distributed on both sides of the vehicle centerline, and the roof (4) is overlapped on the one-side wall (2) and the two-side wall (3) and connected by riveting.

5. The vehicle body structure of a lightweight swing-straddle monorail vehicle according to claim 1, characterized by The side wall lower edge beam (24) is provided with a side wall lower flange (241) in the web area, the web area of the chassis edge beam (11) is provided with a chassis lower flange (111), the side wall lower flange (241) and the chassis lower flange (111) are in the same plane, and the lower equipment of the vehicle is provided with a mounting interface.

6. The vehicle body structure of a lightweight swing-straddle monorail vehicle according to claim 1, characterized by The main part of the roof (3) is formed by the roof edge beam (32) and the dome plate (35), the end part is provided with an end plate (31), the air conditioner installation beam (33) is symmetrically arranged in the air conditioner area to form an air conditioner installation frame, and the roof plate variable cross-section area is transitioned by the end plate (34); the roof (4) is overlapped on the side wall upper edge beam (23) through the roof edge beam (32) and fixed by riveting.

7. The vehicle body structure of a lightweight swing-straddle monorail vehicle according to claim 1, characterized by The end wall (5) is provided at the two-side end, the main part of the end wall (5) is an aluminum plate (41), and a through hole (44) is arranged on the aluminum plate (41); a reinforcing beam (42) is welded on the upper part of the aluminum plate (41), and a glue groove (43) is arranged on the aluminum plate (41) and used for sealing by riveting after the side wall.

8. The vehicle body structure of a lightweight swing-straddle monorail vehicle according to claim 1, characterized by The inner side and the upper part of the side wall (2, 3) provide a mounting interface for the vehicle wire slot, the lower part of the side wall (2, 3) provides a mounting interface for the seat, and the outer side of the side wall (2, 3) is provided with a rain eave.

9. The vehicle body structure of a lightweight swing-straddle monorail vehicle according to claim 1, characterized by The side wall (2, 3) is further provided with a side wall upper edge beam (23), a window installation interface (26), an interior seat interface (27), a vehicle door installation interface (28) and an external unlocking installation interface (29).

10. A lightweight straddle-type articulated monorail vehicle, characterized by: The vehicle body structure has the advantages that the vehicle body structure is provided with the one-side wall (2) and the two-side wall (3), the roof (4) is overlapped on the one-side wall (2) and the two-side wall (3) and connected by riveting, the side wall (2, 3) is provided with the side wall lower edge beam (24), the side wall upper edge beam (23), the window installation interface (26), the interior seat interface (27), the vehicle door installation interface (28) and the external unlocking installation interface (29), and the vehicle body structure has the advantages of high strength, high rigidity, high stability, high safety, high comfort, high convenience, high reliability, high durability, high environmental protection, high energy saving, high economy, high aesthetics, high intelligence, high practicality, high applicability, high universality, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adaptability, high compatibility, high adapt

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