Modularly assembled metro door panel

Abstract

The utility model relates to subway door assembly technical field discloses a modular assembly subway door door panel, including main skeleton and door shell, the adjacent between main skeleton and door shell is provided with assembly mechanism, the assembly mechanism is used for realizing the modular connection assembly of device, the outer wall top of door shell is provided with window mechanism, the window mechanism is used for providing the observation port for car door, the outer wall bottom of door shell is provided with apron mechanism, the assembly mechanism includes a plurality of bolts no.

Description

Technical Field

[0001] This utility model relates to the field of subway car door assembly technology, and in particular to a modularly assembled subway car door panel. Background Technology

[0002] The door panel is the main part of the subway car door. It is made of aluminum alloy and is lightweight and corrosion resistant. The door panel usually has a frame structure inside and is filled with honeycomb material to enhance strength and sound and heat insulation performance. Depending on the type of door, the door panel moves in different ways. For example, the door panel of a sliding door moves by sliding during opening and closing, while the door panel of an in-car sliding door moves in the sandwich between the outer wall panel and the inner side panel of the car.

[0003] The subway car door panels are formed by cutting and stamping to create the inner and outer skin structures. The door panel frame is directly welded using argon arc welding. When assembling double-glazed safety glass, structural sealant is used for bonding and fixing, which can form an integral assembly structure that balances lightweight and high strength. Due to the internal filling of polyurethane foam or aluminum honeycomb structure, combined with double-glazed glass, the sound insulation effect is excellent.

[0004] The existing subway car door panels have a fixed structure, which makes it impossible to modularly combine and assemble them, significantly restricting production and maintenance. During production, door panels for different car models need to be customized separately, production line switching is time-consuming, and the process is highly dependent, making it difficult to adapt to mixed production of multiple car models. When the car doors are maintained, the fixed structure means that the entire door panel needs to be disassembled for repairs. Even if small parts such as seals and locks are damaged, the entire door panel needs to be disassembled, and it is difficult to achieve accurate replacement, which seriously affects operational efficiency. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a modularly assembled subway door panel, which aims to improve the problem that the existing subway door structure is fixed and cannot achieve modular assembly, thus affecting the production process and subsequent maintenance.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a modularly assembled subway car door panel, including a main frame and a door shell, wherein an assembly mechanism is provided between adjacent parts of the main frame and the door shell, the assembly mechanism is used to realize the modular connection and assembly of the device, a window mechanism is provided on the top of the outer wall of the door shell, the window mechanism is used to provide an observation opening for the car door, and a cover plate mechanism is provided on the bottom of the outer wall of the door shell. The assembly mechanism includes multiple bolts, the outer walls of which are threaded to the inner wall of the main frame. Nuts are threaded to the front of each bolt. Multiple screw holes are provided on the front of the outer wall of the door shell, and multiple screw holes are provided on the rear of the outer wall of the door shell. The front and rear sides of the outer walls of the nuts are threaded to the inner walls of the screw holes. An inner assembly is provided on the inner wall of the door shell. An opening assembly is provided on the right front end of the door shell. A sliding assembly is provided on the rear side of the door shell. An outer edge strip is fixedly connected to each adjacent side of the outer wall of the door shell.

[0007] As a further description of the above technical solution: The window mechanism includes an outer frame, the outer wall of which is located on the top of the inner wall of the door shell, a glass plate is fixedly connected to the front side of the inner wall of the outer frame, an intermediate membrane is fixedly connected to the inner wall of the outer frame, a glass plate is fixedly connected to the rear side of the inner wall of the outer frame, and fixing components are provided on the left and right sides of the outer frame.

[0008] As a further description of the above technical solution: The cover plate mechanism includes an outer frame two. The outer wall of the outer frame two is set at the bottom of the inner wall of the door shell. Protective plates are fixedly connected to the front and rear sides of the inner wall of the outer frame two. Sound insulation plates are fixedly connected to the adjacent side of the two protective plates. Insulation plates are fixedly connected to the inner wall of the outer frame two. Connecting components are provided on the left and right sides of the outer frame two.

[0009] As a further description of the above technical solution: The inner assembly includes multiple inner edge strips, and the outer walls of the multiple inner edge strips are fixedly connected to the front and rear sides of the inner wall of the door shell on opposite sides. Multiple fixing blocks are fixedly connected to the inner walls of the multiple inner edge strips.

[0010] As a further description of the above technical solution: The opening assembly includes a handle outer plate, which is disposed on the front side of the outer wall of the door shell. The front side of the handle outer plate is threaded with a plurality of bolts, and the rear side of the plurality of bolts is threaded with the front side of the outer wall of the door shell.

[0011] As a further description of the above technical solution: The sliding assembly includes multiple supports, the front sides of which are disposed on the rear side of the door shell. Multiple bolts are threadedly connected to the rear side of each of the multiple supports. The front sides of the multiple bolts are threadedly connected to the rear side of the door shell. A rotating shaft is rotatably connected to the opposite side of each of the multiple supports. A vehicle body is rotatably connected to the opposite side of each of the multiple rotating shafts. Two pulleys are rotatably connected to the front side of each of the multiple vehicle bodies. A slide rail is provided on the opposite side of the door shell. The inner walls of the two slide rails are slidably connected to the outer walls of the multiple pulleys.

[0012] As a further description of the above technical solution: The fixing component includes multiple bolts four, the outer walls of the multiple bolts four are threaded to the outer wall of the outer frame one, the front and rear sides of the outer walls of the multiple bolts four are respectively threaded to the adjacent side of the multiple fixing blocks, and the front side of the multiple bolts four is threaded to a nut two.

[0013] As a further description of the above technical solution: The connecting assembly includes multiple bolts five, the outer walls of which are threaded to the outer wall of the outer frame two, and the front and rear sides of the outer walls of the multiple bolts five are respectively threaded to the adjacent side of the multiple fixing blocks. Nuts three are threaded to the front side of the multiple bolts five.

[0014] This utility model has the following beneficial effects: 1. In this utility model, at the junction of the main frame and the door shell, bolts are inserted into the inner wall of the main frame, and nuts are screwed onto the front side. The front and rear sides of the nuts are respectively threaded into screw holes one and two on the door shell. The inner assembly provides installation points for other structures, and the outer strip fits the adjacent side of the door shell. The opening component and the sliding component are adapted to each other to realize modular assembly of the door panel, improve connection stability, simplify the assembly process, ensure structural regularity, and facilitate subsequent maintenance and component replacement.

[0015] 2. In this utility model, an outer frame is installed on the top of the inner wall of the door shell, a glass plate is fixed on the front side of its inner wall, an intermediate film is connected in the middle position, a glass plate is fixed on the rear side, and the left and right sides of the outer frame are reinforced by fixing components, so that all components are tightly connected into a whole, realizing the vehicle door observation function, ensuring the stability of the window structure, improving the safety of use, and adapting to the overall assembly requirements of the door panel. Attached Figure Description

[0016] Figure 1 A perspective view of a modularly assembled subway car door panel proposed in this utility model; Figure 2 This is a split view of the assembly mechanism in a modularly assembled subway car door panel proposed in this utility model; Figure 3 This is a schematic diagram of the sliding component in a modularly assembled subway car door panel according to the present invention. Figure 4 This is a split view of the window mechanism in a modularly assembled subway car door panel according to the present invention. Figure 5 This is an exploded view of the cover plate mechanism in the modular assembly of a subway car door panel proposed in this utility model.

[0017] Legend: 1. Main frame; 2. Door shell; 3. Assembly mechanism; 31. Bolt 1; 32. Nut 1; 33. Screw hole 1; 34. Screw hole 2; 35. Inner assembly; 351. Inner edge strip; 352. Fixing block; 36. Opening assembly; 361. Handle outer plate; 362. Bolt 2; 37. Sliding assembly; 371. Support; 372. Bolt 3; 373. Rotating shaft; 374. Car body; 375. Pulley; 376. Slide rail; 38. Outer edge strip; 4. Window mechanism; 41. Outer frame 1; 42. Glass plate 1; 43. Interlayer film; 44. Glass plate 2; 45. Fixing assembly; 451. Bolt 4; 452. Nut 2; 5. Cover plate mechanism; 51. Outer frame 2; 52. Protective plate; 53. Sound insulation plate; 54. Thermal insulation plate; 55. Connecting assembly; 551. Bolt 5; 552. Nut 3. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0019] Reference Figures 1-3 An embodiment of this utility model is provided: a modularly assembled subway car door panel, including a main frame 1 and a door shell 2. An assembly mechanism 3 is provided between the main frame 1 and the door shell 2. The assembly mechanism 3 is used to realize the modular connection and assembly of the device. A window mechanism 4 is provided on the top of the outer wall of the door shell 2. The window mechanism 4 is used to provide an observation opening for the car door. A cover plate mechanism 5 is provided on the bottom of the outer wall of the door shell 2. Assembly mechanism 3 includes multiple bolts 31, the outer walls of multiple bolts 31 are threaded to the inner wall of main frame 1, the front sides of multiple bolts 31 are threaded to nuts 32, the front side of the outer wall of door shell 2 is provided with multiple screw holes 33, the rear side of the outer wall of door shell 2 is provided with multiple screw holes 34, the front and rear sides of the outer walls of multiple nuts 32 are respectively threaded to the inner walls of multiple screw holes 33 and screw holes 34, the inner wall of door shell 2 is provided with an inner assembly 35, the right front end of door shell 2 is provided with an opening assembly 36, the rear side of door shell 2 is provided with a sliding assembly 37, and the adjacent sides of the outer wall of door shell 2 are fixedly connected with outer edge strips 38. Specifically, the inner wall of the door shell 2 is aligned and fitted with the front and back of the main frame 1. Then, multiple bolts 31 are passed through multiple screw holes 34 on the rear side of the door shell 2, and simultaneously through multiple screw holes 33 on the front side of both the main frame 1 and the door shell 2. At this point, the outer walls of the bolts 31 form a threaded connection with the main frame 1 and the door shell 2. Next, multiple nuts 32 are threaded to the front sides of the bolts 31. Through the cooperation of bolts 31, nuts 32, screw holes 33, and screw holes 34, the main frame 1 and the door shell 2 are initially fixed. The outer edge strip 38 on the adjacent side of the outer wall of the door shell 2 ensures the alignment of the door shell 2 during assembly and the sealing effect of the assembled door panel, enhancing the fit of the door shell 2 and achieving the connection between adjacent door shells 2. Then, the opening component 36 on the front right end of the door shell 2 is assembled with the corresponding installation structure on the front side of the door shell 2. Through the cooperation of the opening component 36 with the door shell 2, the door shell 2 can be opened. The manual opening of the car door provides structural support. Then, the sliding component 37 on the rear side of the door shell 2 is assembled with the corresponding structure on the rear side of the door shell 2. Through the cooperation between the sliding component 37 and the door shell 2, the car door can move along a set trajectory, ensuring the normal opening and closing of the car door. When assembling the door shell 2 with the main frame 1, the window mechanism 4 is fixed to the inner side of the upper half of the door shell 2 through the first set of mounting points of the inner assembly component 35, and the cover plate mechanism 5 is fixed to the inner side of the lower half of the door shell 2 through the second set of mounting points of the inner assembly component 35. Since the window mechanism 4, the cover plate mechanism 5 and the inner assembly component 35 are the same size, the installation of the window mechanism 4 and the cover plate mechanism 5 can be combined and matched according to the usage, thereby enhancing the modular installation performance of the door panel. Through the cooperation between the window mechanism 4, the cover plate mechanism 5 and the door shell 2, the observation window and protective layer of the car door can be formed, completing the modular assembly of the subway car door panel and realizing its function.

[0020] Reference Figure 4 The window mechanism 4 includes an outer frame 41, the outer wall of the outer frame 41 is set on the top of the inner wall of the door shell 2, a glass plate 42 is fixedly connected to the front side of the inner wall of the outer frame 41, an intermediate film 43 is fixedly connected to the inner wall of the outer frame 41, a glass plate 44 is fixedly connected to the rear side of the inner wall of the outer frame 41, and fixing components 45 are provided on the left and right sides of the outer frame 41. Specifically, the dimensions of the outer frame 41 are matched with the inner assembly 35 of the door shell 2, stably fixing the outer frame 41 to the top of the inner wall of the door shell 2, achieving a modular installation effect between the window mechanism 4 and the door body. From front to back, the inner wall of the outer frame 41 is fixedly connected to glass plate 42, intermediate film 43, and glass plate 44. Glass plate 42, intermediate film 43, and glass plate 44 together form a multi-layer composite soundproof glass within the outer frame 41. Glass plate 42 and glass plate 44 are both made of soda-lime glass, and the intermediate film 43 is made of PVB resin. Glass plate 42, intermediate film 43, and glass plate 44 work together to achieve the dual effect of light transmission and isolation from the external environment. Fixing component 45 is assembled on the left and right sides of outer frame 41, which can provide an installation base for the connection and fixation of window mechanism 4 and inner assembly component 35 on door shell 2. Through the cooperation of fixing component 45 and outer frame 41, the positions of glass plate 42, intermediate film 43, and glass plate 44 within fixing component 45 are limited to prevent the components from shifting during use and to achieve a stable effect of the internal structure of window mechanism 4.

[0021] Reference Figures 2-5 The cover plate mechanism 5 includes an outer frame 51, the outer wall of which is located at the bottom of the inner wall of the door shell 2. Protective plates 52 are fixedly connected to the front and rear sides of the inner wall of the outer frame 51. Sound insulation plates 53 are fixedly connected to the adjacent side of the two protective plates 52. Insulation plates 54 are fixedly connected to the inner wall of the outer frame 51. Connecting components 55 are provided on the left and right sides of the outer frame 51. The inner assembly 35 includes multiple inner edge strips 351. The outer walls of the multiple inner edge strips 351 are fixedly connected to the front and rear sides of the inner wall of the door shell 2 on opposite sides. Multiple fixing blocks 352 are fixedly connected to the inner walls of the multiple inner edge strips 351. The opening assembly 36 includes a handle outer plate 361. The handle outer plate 361 is located on the front side of the outer wall of the door shell 2. Multiple bolts 362 are threadedly connected to the front side of the handle outer plate 361. The rear side of the multiple bolts 362 is threadedly connected to the front side of the outer wall of the door shell 2. Specifically, the dimensions of the outer frame 51 are matched with the inner assembly 35 of the door shell 2, stably fixing the outer frame 51 to the bottom of the inner wall of the door shell 2, achieving a modular installation effect between the cover mechanism 5 and the door body. Protective plates 52 are fixedly connected to the front and rear sides of the inner wall of the outer frame 51. The protective plates 52 form structural protection through the internal cavity area formed by their connection with the front and rear sides of the inner wall of the door shell 2. Sound insulation plates 53 are fixedly connected to adjacent sides of the two protective plates 52. The sound insulation plates 53 are made of flame-retardant polyester fiber sound-absorbing felt material. The sound insulation plates 53 and the protective plates 52 form a structural protection effect. Plate 52 works together to block sound transmission between the inside and outside of the door. Through the protective plate 52 and the sound insulation plate 53, the door structure achieves a dual effect of protection and sound insulation. The inner wall of the outer frame 51 is fixedly connected to the insulation plate 54, which is made of graphite modified EPS material. The insulation plate 54 can reduce heat exchange between the inside and outside of the door. Through the load-bearing capacity of the insulation plate 54 and the outer frame 51, the door's heat insulation function is stably realized. Connecting components 55 are set on the left and right sides of the outer frame 51, which can provide connection and fixation between the cover plate mechanism 5 and the inner assembly component 35 on the door shell 2. The installation base is provided, and the cover plate mechanism 5 is stably installed on the bottom of the inner wall of the door shell 2 by connecting component 55 and outer frame 51. The outer walls of multiple inner edge strips 351 in the inner assembly 35 are fixedly connected to the front and rear sides of the inner wall of the door shell 2 on opposite sides. The inner edge strips 351 provide an installation carrier for the fixing blocks 352. Multiple fixing blocks 352 are fixedly connected to the inner walls of multiple inner edge strips 351. The fixing blocks 352 provide installation points for the fixing component 45 and connecting component 55. Through the inner edge strips 351 and fixing blocks 352, the window... The modular combination installation of the door shell 2 by the door mechanism 4 and the cover plate mechanism 5 is effective. The handle outer plate 361 in the opening component 36 is set on the front side of the outer wall of the door shell 2, providing a force-applying component for the manual opening operation of the door. The front side of the handle outer plate 361 is threadedly connected to multiple bolts 362. The rear side of the multiple bolts 362 is threadedly connected to the front side of the outer wall of the door shell 2. The bolts 362 stably fix the handle outer plate 361 to the front side of the outer wall of the door shell 2. Through the handle outer plate 361 and the bolts 362, the convenience and stability of the door opening operation are achieved.

[0022] Reference Figures 3-4The sliding assembly 37 includes multiple supports 371. The front sides of the multiple supports 371 are located on the rear side of the door shell 2. Multiple bolts 372 are threadedly connected to the rear side of each of the multiple supports 371. The front sides of the multiple bolts 372 are threadedly connected to the rear side of the door shell 2. A rotating shaft 373 is rotatably connected to the opposite side of each of the multiple supports 371. A vehicle body 374 is rotatably connected to the opposite side of each of the multiple rotating shafts 373. Two pulleys 375 are rotatably connected to the front side of each of the multiple vehicle bodies 374. A slide rail 376 is provided on the opposite side of each of the door shell 2. The inner walls of the two slide rails 376 are slidably connected to the outer walls of the multiple pulleys 375. The fixing component 45 includes multiple bolts 451, the outer walls of which are threaded to the outer wall of the outer frame 41. The front and rear sides of the outer walls of the multiple bolts 451 are threaded to the adjacent sides of the multiple fixing blocks 352 respectively. Nuts 452 are threaded to the front side of the multiple bolts 451. The connecting component 55 includes multiple bolts 551, the outer walls of which are threaded to the outer wall of the outer frame 51. The front and rear sides of the outer walls of the multiple bolts 551 are threaded to the adjacent sides of the multiple fixing blocks 352 respectively. Nuts 552 are threaded to the front side of the multiple bolts 551. Specifically, multiple bolts 372 securely connect multiple supports 371 to the rear top and bottom of the door shell 2. Through the cooperation of the supports 371 and bolts 372, a fixed connection is achieved between the supports 371 and the door shell 2. Rotary shafts 373 are rotatably connected to the opposite sides of the supports 371, and vehicle bodies 374 are rotatably connected to the opposite sides of the shafts 373. Through the cooperation of the supports 371, shafts 373, and vehicle bodies 374, a rotatable connection is achieved between the vehicle bodies 374 and the supports 371. Two pulleys 375 are rotatably connected to the front of each vehicle body 374. A slide rail 376 is provided on the opposite side of the door shell 2. The two slide rails 376 contact the pulleys 375, allowing the sliding assembly 37 to move stably along the slide rails 376, thereby driving the door to open and close to both sides. Multiple bolts 451 are threaded onto the outer wall of the outer frame 41. The front and rear sides of the outer wall are threadedly connected to the adjacent side of multiple fixing blocks 352. Nuts 452 are threadedly connected to the front side of multiple bolts 451. Through the threaded connection of bolts 451 to the outer frame 41 and fixing blocks 352, and the threaded engagement of nuts 452 and bolts 451, the effect of fixed connection between the outer frame 41 and fixing blocks 352 is achieved. The outer wall of multiple bolts 551 is threadedly connected to the outer wall of the outer frame 2 51. The front and rear sides of the outer wall of multiple bolts 551 are threadedly connected to the adjacent side of multiple fixing blocks 352. Nuts 552 are threadedly connected to the front side of multiple bolts 551. Through the threaded connection of bolts 551 to the outer frame 2 51 and fixing blocks 352, and the threaded engagement of nuts 552 and bolts 551, the effect of fixed connection between the outer frame 2 51 and fixing blocks 352 is achieved. Finally, the modular installation function of window mechanism 4, cover plate mechanism 5 and door shell 2 is realized.

[0023] Working principle: Align the inner wall of the door shell 2 with the front and rear ends of the main frame 1 and fit them tightly. Then, take multiple bolts 31 and insert each bolt 31 into the multiple pre-set screw holes 34 on the rear side of the door shell 2. After passing through the screw holes 34, continue through the main frame 1 and the multiple pre-set screw holes 33 on the front side of the door shell 2. At this time, the outer wall of the bolt 31 forms a stable threaded connection between the bolt 31, the main frame 1, and the door shell 2 through the threaded structure of the screw holes 33, the inner wall of the screw holes 34, and the corresponding threaded part of the main frame 1. Then, insert multiple nuts 32 into each bolt 31. The threaded connection is made at the front end of the door shell 2. Through the fastening action of bolt 31 and nut 32 and the positioning action of screw hole 33 and screw hole 34, the main frame 1 and the door shell 2 are initially fixed. During this process, the outer edge strip 38 on the adjacent side of the outer wall of the door shell 2 can assist in the alignment of its position during the assembly of the door shell 2, ensuring the accuracy of the fit between the door shell 2 and the main frame 1. At the same time, after the assembly is completed, the outer edge strip 38 can fill the gap between the door shell 2 and the adjacent parts, enhance the overall fit of the door shell 2, and thus achieve a sealed connection between adjacent door shells 2, ensuring the overall sealing of the door panel. After initial fixing, the opening component 36 and the sliding component 37 are assembled. The opening component 36 is assembled at the corresponding mounting structure on the front right side of the door shell 2. Through the adaptive connection between the opening component 36 and the mounting structure of the door shell 2, structural support is provided for the manual opening operation of the door, ensuring that the operator can easily control the door through the opening component 36. The sliding component 37 is assembled at the corresponding structure on the rear side of the door shell 2. Through the cooperation between the sliding component 37 and the rear structure of the door shell 2, the door can move along a preset trajectory, thereby ensuring that the door can normally complete the opening and closing actions during use. While assembling the door shell 2 and the main frame 1, the window mechanism 4 and the cover plate mechanism are simultaneously installed. The installation of 5 involves the window mechanism 4 being fixed to the inner side of the upper half of the door shell 2 via the first set of mounting points of the inner assembly 35, and the cover plate mechanism 5 being fixed to the inner side of the lower half of the door shell 2 via the second set of mounting points of the inner assembly 35. Since the window mechanism 4, the cover plate mechanism 5 and the inner assembly 35 are perfectly matched in size, the installation positions of the window mechanism 4 and the cover plate mechanism 5 can be flexibly combined according to actual usage requirements, effectively enhancing the modular installation performance of the door panel. The cooperation between the window mechanism 4 and the door shell 2 can form an observation window for the car door, and the cooperation between the cover plate mechanism 5 and the door shell 2 can form a protective layer for the car door, laying the foundation for the subsequent realization of the complete function of the car door. The inner wall of the outer frame 41 of the window mechanism 4 is fixedly connected from front to back with glass plate 42, intermediate film 43 and glass plate 44. The three together form a multi-layer composite soundproof glass structure within the space defined by the outer frame 41. Glass plate 42 and glass plate 44 are made of soda-lime glass, which has good light transmission and structural strength. Intermediate film 43 is made of PVB resin, which has excellent adhesion and sound insulation performance. Glass plate 42, intermediate film 43 and glass plate 44 work together to ensure the light transmission of the door and effectively isolate it from the external environment, preventing external noise and dust from entering the vehicle. Fixing components 45 are installed on the left and right sides of the outer frame 41. Fixing components 45 can provide an installation base for the connection and fixation of the window mechanism 4 and the inner assembly component 35 on the door shell 2, ensuring that the window mechanism 4 is stably installed on the top of the inner wall of the door shell 2, thereby achieving the structural stability of the window mechanism 4 and ensuring its long-term performance. Protective plates 52 are fixedly connected to both the front and rear sides of the inner wall of the outer frame 51 in the cover mechanism 5. The protective plates 52 form a closed internal cavity area through their connection with the front and rear sides of the inner wall of the door shell 2. The combination of the structural strength of this cavity area and the protective plates 52 can provide effective structural protection for the door, preventing the door from deforming due to external impact or internal stress. Sound insulation plates 53 are fixedly connected to adjacent sides of the two protective plates 52. The sound insulation plates 53 are made of flame-retardant polyester fiber sound-absorbing felt material, which has good sound absorption, sound insulation and flame-retardant properties. The sound insulation plates 53 and the protective plates 52 work together to effectively block the door. The sound transmission between the inside and outside reduces the impact of external noise on the in-vehicle environment. The inner wall of the outer frame 2 51 is also fixedly connected with an insulation board 54. The insulation board 54 is made of graphite modified EPS material, which has excellent thermal insulation performance and can significantly reduce the heat exchange between the inside and outside of the door, maintaining the stability of the in-vehicle temperature. In addition, the left and right sides of the outer frame 2 51 are provided with connecting components 55. The connecting components 55 can provide an installation base for the connection and fixation of the cover mechanism 5 and the inner assembly component 35 on the door shell 2, ensuring that the cover mechanism 5 is stably assembled on the bottom of the inner wall of the door shell 2, enhancing the structural stability of the cover mechanism 5, and preventing it from loosening during use. The inner assembly 35 serves as the main mounting carrier for the window mechanism 4 and the cover plate mechanism 5. The inner assembly 35 includes multiple inner edge strips 351 and multiple fixing blocks 352. The outer walls of the multiple inner edge strips 351 are fixedly connected to the front and rear sides of the inner wall of the door shell 2 on opposite sides. The inner edge strips 351 provide a stable mounting carrier for the fixing blocks 352 through their fixed connection with the door shell 2. Multiple fixing blocks 352 are fixedly connected to the inner walls of the multiple inner edge strips 351. The position of each fixing block 352 corresponds to the installation position of the fixing component 45 of the window mechanism 4 and the connecting component 55 of the cover plate mechanism 5. This provides precise installation points for the fixing component 45 and the connecting component 55. Through the bearing effect of the inner edge strips 351 on the fixing blocks 352 and the cooperation between the fixing blocks 352 and the fixing component 45 and the connecting component 55, the modular combination installation of the window mechanism 4 and the cover plate mechanism 5 on the door shell 2 is realized, ensuring the connection stability between each mechanism and the door shell 2. The handle outer plate 361 in the opening assembly 36 is set on the front side of the outer wall of the door shell 2, providing a convenient force application component for the manual opening operation of the door. Multiple threaded holes are pre-set on the front side of the handle outer plate 361, and multiple bolts 362 pass through these threaded holes and are threadedly connected to the pre-set threaded holes on the front side of the outer wall of the door shell 2. Through the tightening action of the bolts 362, the handle outer plate 361 is stably fixed on the front side of the outer wall of the door shell 2, preventing the handle outer plate 361 from loosening or falling off during use, thereby achieving the convenience and stability of the door opening operation. Multiple bolts 372 in the sliding assembly 37 pass through the pre-set mounting holes of the support 371 and are threadedly connected to the pre-set threaded holes at the top and bottom of the rear side of the door shell 2. Through the tightening action of the bolts 372, the multiple supports 371 are securely connected to the top and bottom of the rear side of the door shell 2, achieving a fixed connection between the supports 371 and the door shell 2. Each of the opposite sides of the multiple supports 371 is rotatably connected to a rotating shaft 373 via bearings. Each of the opposite sides of the multiple rotating shafts 373 is fixedly connected to the vehicle body 374 and can rotate relative to the vehicle body 374. This connection is achieved through the supports 371 and the rotating shafts 372. The cooperation between 73 and the vehicle body 374 enables the rotatable connection between the vehicle body 374 and the support 371, providing a basis for the rotation of the pulley 375. Two pulleys 375 are rotatably connected to the front of each of the multiple vehicle bodies 374. A slide rail 376 is fixedly installed on the opposite side of the door shell 2. The track grooves of the two slide rails 376 are in contact with and adapted to the outer wall of the multiple pulleys 375, so that the sliding component 37 can move stably along the slide rail 376 under the limiting action of the slide rail 376, thereby driving the entire door to open and close to both sides, ensuring the smoothness and stability of the door opening and closing action; When installing the window mechanism 4 and the cover plate mechanism 5, the fixing component 45 and the connecting component 55 will be assembled with the door shell 2 through a modular installation method. For the fixing component 45, multiple bolts 451 are used, and the outer wall of each bolt 451 is threaded to the pre-set threaded hole on the outer wall of the outer frame 41. At the same time, the front and rear sides of the outer wall of the bolt 451 are threaded to the pre-set threaded holes on the adjacent side of multiple fixing blocks 352. Then, multiple nuts 452 are screwed into the ends of each bolt 451 that extend to the front side of the fixing block 352. Through the threaded connection between the bolt 451 and the outer frame 41 and the fixing block 352, and the fastening action between the nuts 452 and the bolt 451, the fixing between the outer frame 41 and the fixing block 352 is achieved. The connection ensures that the window mechanism 4 is stably assembled on the top of the inner wall of the door shell 2. For the connecting component 55, multiple bolts 551 are used, and the outer wall of each bolt 551 is threaded to the threaded hole on the outer wall of the outer frame 2 51. At the same time, the front and rear sides of the outer wall of the bolt 551 are threaded to the threaded holes on the adjacent side of multiple fixing blocks 352. Then, multiple nuts 352 are threaded to the ends of each bolt 551 that extend to the front side of the fixing block 352. Through the threaded connection between the bolt 551 and the outer frame 2 51 and the fixing block 352, and the fastening action between the nuts 352 and the bolt 551, the fixed connection between the outer frame 2 51 and the fixing block 352 is achieved, thereby ensuring that the cover plate mechanism 5 is stably assembled on the bottom of the inner wall of the door shell 2.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A modularly assembled subway car door panel, comprising a main frame (1) and a door shell (2), characterized in that: An assembly mechanism (3) is provided between the main frame (1) and the door shell (2). The assembly mechanism (3) is used to realize the modular connection assembly of the device. A window mechanism (4) is provided on the top of the outer wall of the door shell (2). The window mechanism (4) is used to provide an observation port for the door. A cover plate mechanism (5) is provided on the bottom of the outer wall of the door shell (2). The assembly mechanism (3) includes multiple bolts (31), the outer walls of the multiple bolts (31) are threaded to the inner wall of the main frame (1), the front sides of the multiple bolts (31) are threaded to nuts (32), the front side of the outer wall of the door shell (2) is provided with multiple screw holes (33), the rear side of the outer wall of the door shell (2) is provided with multiple screw holes (34), the front and rear sides of the outer walls of the multiple nuts (32) are respectively threaded to the inner walls of the multiple screw holes (33) and screw holes (34), the inner wall of the door shell (2) is provided with an inner assembly (35), the right front end of the door shell (2) is provided with an opening assembly (36), the rear side of the door shell (2) is provided with a sliding assembly (37), and the adjacent sides of the outer wall of the door shell (2) are fixedly connected with outer edge strips (38).

2. The modularly assembled subway car door panel according to claim 1, characterized in that: The window mechanism (4) includes an outer frame (41), the outer wall of the outer frame (41) is set on the top of the inner wall of the door shell (2), a glass plate (42) is fixedly connected to the front side of the inner wall of the outer frame (41), an intermediate film (43) is fixedly connected to the inner wall of the outer frame (41), a glass plate (44) is fixedly connected to the rear side of the inner wall of the outer frame (41), and fixing components (45) are provided on the left and right sides of the outer frame (41).

3. A modularly assembled subway car door panel according to claim 1, characterized in that: The cover plate mechanism (5) includes an outer frame two (51), the outer wall of the outer frame two (51) is set at the bottom of the inner wall of the door shell (2), the front and rear sides of the inner wall of the outer frame two (51) are fixedly connected with protective plates (52), the adjacent sides of the two protective plates (52) are fixedly connected with sound insulation plates (53), the inner wall of the outer frame two (51) is fixedly connected with heat insulation plates (54), and the left and right sides of the outer frame two (51) are provided with connecting components (55).

4. A modularly assembled subway car door panel according to claim 1, characterized in that: The inner assembly (35) includes multiple inner edge strips (351), the outer walls of the multiple inner edge strips (351) are fixedly connected to the front and rear sides of the inner wall of the door shell (2) on opposite sides, and multiple fixing blocks (352) are fixedly connected to the inner walls of the multiple inner edge strips (351).

5. A modularly assembled subway car door panel according to claim 1, characterized in that: The opening assembly (36) includes a handle outer plate (361), which is disposed on the front side of the outer wall of the door shell (2). The front side of the handle outer plate (361) is threaded with a plurality of bolts (362), and the rear side of the plurality of bolts (362) is threaded to the front side of the outer wall of the door shell (2).

6. A modularly assembled subway car door panel according to claim 1, characterized in that: The sliding assembly (37) includes multiple supports (371), the front side of which is located on the rear side of the door shell (2). Multiple bolts (372) are threadedly connected to the rear side of each of the multiple supports (371). The front side of each of the multiple bolts (372) is threadedly connected to the rear side of the door shell (2). A rotating shaft (373) is rotatably connected to the opposite side of each of the multiple supports (371). A vehicle body (374) is rotatably connected to the opposite side of each of the multiple rotating shafts (373). Two pulleys (375) are rotatably connected to the front side of each of the multiple vehicle bodies (374). A slide rail (376) is provided on the opposite side of each of the door shell (2). The inner wall of the two slide rails (376) is slidably connected to the outer wall of the multiple pulleys (375).

7. A modularly assembled subway car door panel according to claim 2, characterized in that: The fixing component (45) includes multiple bolts four (451), the outer walls of the multiple bolts four (451) are threaded to the outer wall of the outer frame one (41), the front and rear sides of the outer walls of the multiple bolts four (451) are respectively threaded to the adjacent side of the multiple fixing blocks (352), and the front side of the multiple bolts four (451) is threaded to a nut two (452).

8. A modularly assembled subway car door panel according to claim 3, characterized in that: The connecting assembly (55) includes a plurality of bolts five (551), the outer walls of the plurality of bolts five (551) are threaded to the outer wall of the outer frame two (51), the front and rear sides of the outer walls of the plurality of bolts five (551) are respectively threaded to the adjacent side of the plurality of fixing blocks (352), and the front side of the plurality of bolts five (551) is threaded to a nut three (552).

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