A hinged door system for a passenger vehicle

Abstract

This utility model relates to the field of buses, specifically to a hinged door system for buses, including a vehicle body, a door, and a drive unit. The vehicle body has a door opening, and the drive unit is fixed to the internal frame of the vehicle body. The drive end of the drive unit is fixedly connected to the door, and the drive unit drives the door to close or open the door opening. A strip-shaped mounting hole is fixed to the side of the door opening, extending along the inner and outer opening directions of the door opening. A main sealing component is fixed to the strip-shaped mounting hole, and the opening direction of the strip-shaped mounting hole is the same as the inner and outer opening directions of the door opening. During assembly, the distance between the main sealing component and the outer opening of the door opening is adjusted using the opening range of the strip-shaped mounting hole, thereby achieving positional adjustment between the door and the main sealing component when the door is closed, adapting to door specifications with different dimensional errors.

Description

Technical Field

[0001] The utility model relates to the field of passenger cars, in particular to a hinged door system for a passenger car. Background Art

[0002] A passenger car is a means of transport specially designed for carrying passengers. It usually has a relatively spacious seating space and can accommodate multiple passengers at the same time. Passenger cars are usually used in urban public transport, tourism travel, shuttle services and other occasions. There are many types and models of passenger cars, including large buses, medium buses, minibuses, etc. Different types of passenger cars differ in the number of seats, body size and functions. Passenger cars are usually driven by professional drivers to ensure the safety and comfort of passengers. In modern society, passenger cars have become one of the important choices for people to travel, providing people with convenient transportation services.

[0003] The structure of a passenger car mainly includes a body structure, a chassis structure, a power system and an electrical system. The body structure includes a frame and a door. Existing doors include driving modes such as folding doors, outward swinging doors, inward swinging doors or manual doors. However, due to errors in door production, there are differences in the dimensions of the doors, which makes the contact between the door and the sealing strip too tight during assembly, affecting the door-closing efficiency, or too loose contact affecting the sealing effect at the door. Utility Model Content

[0004] The object of the present utility model is to provide a hinged door system for a passenger car, which aims to solve the problem that errors in door production lead to differences in door dimensions, which causes too tight contact between the door and the sealing strip during assembly that affects door-closing efficiency, or too loose contact that affects the sealing effect at the door.

[0005] To achieve the above objective, the utility model adopts the following technical solution: A hinged door system for a passenger car, comprising a vehicle body main body, a vehicle door and a driving unit, wherein a door opening is provided on the vehicle body main body, the driving unit is fixed on an inner frame of the vehicle body main body, a driving end of the driving unit is fixedly connected with the vehicle door, and the driving unit drives the vehicle door to close or open the door opening; a strip-shaped assembling hole is fixed on a side surface of the door opening, the strip-shaped assembling hole extends along an inner and outer opening direction of the door opening, a main sealing assembly is fixed on the strip-shaped assembling hole, and a sealing strip of the main sealing assembly extends towards the outer side of the door opening and interferes with a movement path of the vehicle door.

[0006] Further, the main sealing assembly further comprises a sealing seat and a cover plate, a cross-sectional shape of the sealing seat is a "冂" shape, a fixing member is arranged inside the sealing seat, and the fixing member passes through the sealing seat and the strip-shaped assembling hole to be fixedly connected with the door opening; the cover plate is detachably connected to an opening of the sealing seat; the sealing strip is arranged at a side portion of the sealing seat.

[0007] Furthermore, the inner side of the free end of the sealing seat is provided with a toothed surface; the side of the cover plate is provided with an extended connecting arm, the outer side of the connecting arm is provided with engaging teeth, the connecting arm extends into the interior of the sealing seat, and the engaging teeth mesh with the toothed surface.

[0008] Furthermore, the sealing seat has outwardly extending mounting blocks on both sides of its end, the mounting blocks have mounting cavities inside, and the mounting blocks have mounting channels communicating with the mounting cavities on their outer sides. The sealing strip includes a sealing part and a mounting part. The mounting part includes two outwardly extending mounting arms. The mounting arms have outwardly extending mounting plates on their opposite sides. The mounting plates have limiting protrusions on both sides. The ends of the mounting plates are inserted into the mounting cavity. The limiting protrusions are located in the mounting cavity and abut against the inner opening of the mounting channel.

[0009] Furthermore, a mounting post is fixed inside the doorway, and the strip-shaped assembly hole is formed on the mounting post; The end of the mounting arm extends to both sides of the sealing seat, and the end of the mounting arm near the mounting post has an outwardly protruding part, which is interference-fitted between the mounting post and the sealing seat.

[0010] Furthermore, the end of the cover plate is provided with an outwardly extending pressing portion, which extends to the outside of the sealing strip and abuts against the end face of the mounting arm.

[0011] Furthermore, the drive unit includes a telescopic drive motor and a drive connection assembly, and a mounting bracket is fixed on the internal frame, with the end of the drive motor hinged to the mounting bracket. The drive connection assembly includes a hinge seat, a connecting plate, and two opposing drive arms. The hinge seat is fixed to the inside of the vehicle body and located on the side of the door opening. One end of each of the two drive arms is hinged to the upper and lower ends of the hinge seat, and the other end of each of the two drive arms is fixedly connected to the upper and lower ends of the connecting plate, respectively. The drive end of the telescopic drive motor is hinged to one of the drive arms. The connecting plate is fixedly connected to the inside of the car door.

[0012] Furthermore, the drive arm includes a bent connecting section and a straight connecting section; One end of the bent connecting segment is hinged to the hinge seat, and the other end of the bent connecting segment is bent outward and connected to one end of the straight connecting segment. The straight connecting segment is fixedly connected to the connecting plate.

[0013] Furthermore, the main sealing assembly is distributed on both sides and the top surface of the door opening, and the bottom inner side of the door is provided with an outwardly extending lower sealing assembly, which abuts against the body of the vehicle.

[0014] Furthermore, the lower sealing assembly includes a "U"-shaped mounting base and a lower sealing part connected to the inner side of the "U"-shaped mounting base, wherein the lower sealing part abuts against the vehicle body. The bottom of the door is provided with an outwardly extending mounting plate. The "U"-shaped mounting seat is inserted into the end of the mounting plate. The inner sides of the "U"-shaped mounting seat are provided with opposing limiting arms. The distance between the free ends of the opposing limiting arms is less than the thickness of the mounting plate. The free ends of the limiting arms abut against the mounting plate.

[0015] By adopting the above technical solution, this utility model has the following advantages compared with the prior art: The main sealing assembly is fixed to the inner side of the door opening through a strip-shaped mounting hole. The opening direction of the strip-shaped mounting hole is the same as the inner and outer opening direction of the door opening. During the assembly process, the distance between the main sealing assembly and the outer opening of the door opening is adjusted by using the opening range of the strip-shaped mounting hole. This allows for position adjustment between the door and the main sealing assembly when the door is closed, adapting to door specifications with different size errors, and avoiding situations where the distance between them is too close, affecting closing efficiency, or too far, affecting sealing performance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the hinged door system of the bus described in this utility model; Figure 2 This is a schematic diagram of the open state structure of the hinged door system of the bus described in this utility model; Figure 3 This is a schematic diagram of the closed state structure of the hinged door system of the bus described in this utility model; Figure 4 This is an enlarged schematic diagram of part A of the hinged door system of the bus described in this utility model; Figure 5 This is a cross-sectional structural diagram of the hinged door system of the bus described in this utility model; Figure 6 This is an enlarged schematic diagram of part B of the hinged door system of the bus described in this utility model; Figure 7 This is a side view of the door opening structure of the hinged door system of the bus described in this utility model; Figure 8 This is a schematic diagram of the main sealing assembly of the hinged door system of the bus described in this utility model; Figure 9is a schematic structural view of the driving connection assembly of the hinged door system for the passenger car according to the present utility model.

[0017] Description of the reference numerals: 1. Vehicle body; 11. Door opening; 12. Mounting post; 121. Strip-shaped assembly hole; 13. Internal frame; 131. Mounting bracket; 2. Main sealing assembly; 21. Sealing strip; 211. Sealing portion; 2111. Buffer cavity; 2112. Exhaust passage; 212. Mounting portion; 2121. Mounting arm; 2122. Mounting insertion plate; 2123. Limit projection; 2124. Protruding portion; 22. Sealing seat; 221. Fixing member; 222. Tooth-shaped surface; 23. Cover plate; 231. Connecting arm; 2311. Engaging tooth; 232. Pressing portion; 24. Mounting block; 241. Mounting cavity; 242. Mounting passage; 3. Driving unit; 31. Telescopic driving motor; 32. Driving connection assembly; 321. Hinged seat; 322. Connecting flat plate; 323. Driving arm; 3231. Bent connecting section; 3232. Straight connecting section; 4. Vehicle door; 41. Mounting plate; 5. Lower sealing assembly; 51. "冂"-shaped mounting seat; 511. Limit arm; 52. Lower sealing portion. DETAILED DESCRIPTION

[0018] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model, and are not intended to limit the present utility model.

[0019] In addition, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are all based on the orientation or positional relationship shown in the accompanying drawings, which are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element of the present utility model must have a specific orientation, and therefore cannot be construed as a limitation to the present utility model.

[0020] When an element is referred to as being "fixed to", "provided at" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0021] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example

[0022] Please refer to Figure 1-9 As shown, this embodiment provides a hinged door system for a bus, including a vehicle body, a door 4, and a drive unit 3. A door opening 11 is provided on the vehicle body. The drive unit 3 is fixed to the internal frame 13 of the vehicle body, and its drive end is fixedly connected to the door 4. The drive unit 3 drives the door 4 to close or open the door opening 11. A strip-shaped mounting hole 121 is fixed to the side of the door opening 11, extending along the inner and outer opening directions of the door opening 11. A main sealing assembly 2 is fixed to the strip-shaped mounting hole 121, and the sealing strip 21 of the main sealing assembly 2 extends outwards from the door opening 11 and interferes with the movement path of the door 4.

[0023] The main sealing assembly 2 is fixed to the inner side of the door opening 11 through the strip-shaped mounting hole 121. The opening direction of the strip-shaped mounting hole 121 is the same as the inner and outer opening direction of the door opening 11. During the assembly process, the distance between the main sealing assembly 2 and the outer opening of the door opening 11 is adjusted by using the opening range of the strip-shaped mounting hole 121. This allows for position adjustment between the door 4 and the main sealing assembly 2 when the door is closed, adapting to different door 4 specifications with different size errors, and avoiding the two being too close, which would affect the closing efficiency, or too far apart, which would affect the sealing effect.

[0024] Please refer to Figure 1-3As shown, specifically, the drive unit 3 includes a telescopic drive motor 31 and a drive connection assembly 32. A mounting bracket 131 is fixed on the internal frame 13, and the end of the drive motor is hinged to the mounting bracket 131. The drive connection assembly 32 includes a hinge seat 321, a connecting plate 322, and two opposing drive arms 323. The hinge seat 321 is fixed to the inner side of the vehicle body and located on the side of the door opening 11. One end of each drive arm 323 is hinged to the upper and lower ends of the hinge seat 321, respectively, and the other ends of each drive arm 323 are fixedly connected to the upper and lower ends of the connecting plate 322, respectively. The drive end of the telescopic drive motor 31 is hinged to one drive arm 323. The connecting plate 332 is fixedly connected to the inner side of the door 4. In this embodiment, the drive end of the telescopic drive motor 31 is hinged to the drive arm 323 located below. The telescopic drive motor 31 applies pushing and pulling forces to the drive arm 323, causing the drive arm 323 to rotate around the hinge seat 321 as the center, transmitting the pushing and pulling forces to the door 4, thereby driving the door 4 to open and close. Two drive arms 323 are provided, applying pushing and pulling forces to the door 4 in both the vertical and horizontal directions of the connecting plate 322, ensuring greater stability of the door 4 during both opening and closing processes.

[0025] Please refer to Figure 9 As shown, the drive arm 323 further includes a bent connecting section 3231 and a straight connecting section 3232. One end of the bent connecting section 3231 is hinged to the hinge seat 321, and the other end of the bent connecting section 3231 is bent outward and connected to one end of the straight connecting section 3232. The straight connecting section 3232 is fixedly connected to the connecting plate 322. The drive arm 323 is arranged in a "?" shape, using the bending space of the bent connecting section 3231 to make way for the side of the door opening 11, avoiding collision between the drive arm 323 and the side of the door opening 11 during the flipping process, which would affect the opening and closing of the door 4. The straight connecting section 3232 is used to connect to the connecting plate 322, which effectively increases the connection area between the drive arm 323 and the connecting plate 322, ensuring that the thrust and pull applied by the telescopic drive motor 31 to the drive arm 323 can be better transmitted to the connecting plate 322 and the door 4.

[0026] Please refer to Figure 4 and Figure 8As shown, specifically, the main seal assembly 2 further comprises a seal seat 22 and a cover plate 23, and the cross-sectional shape of the seal seat 22 is an inverted "U" shape. A fixing member 221 is provided inside the seal seat 22, and the fixing member 221 passes through the seal seat 22 and the strip-shaped assembly hole 121 to be fixedly connected with the door opening 11. In this embodiment, the fixing member 221 is a bolt, and the bolt passes through the seal seat 22 and the strip-shaped assembly hole 121 to be fixedly connected with the door opening 11. Likewise, other fixing structures may also be provided to fix the seal seat 22. The cover plate 23 is detachably connected to the opening of the seal seat 22; the sealing strip 21 is arranged on the side of the seal seat 22. The fixing member 221 is located inside the seal seat 22 to limit the position of the seal seat 22, and the cover plate 23 seals the opening of the seal seat 22, so as to shield the fixing member 221 and prevent external structures from affecting the fixing effect of the fixing member 221. Meanwhile, the detachable cover plate 23 is provided, which facilitates the assembly and disassembly of the fixing member 221 after the cover plate 23 is disassembled and assembled, improves the assembly and disassembly efficiency of the main seal assembly 2, thereby reducing the position adjustment time of the main seal assembly 2 and improving the overall assembly efficiency of the passenger car.

[0027] A toothed surface 222 is provided on the inner side of the free end of the seal seat 22; an extending connecting arm 231 is provided on the side of the cover plate 23, and an engaging tooth 2311 is provided on the outer side surface of the connecting arm 231. The connecting arm 231 extends into the seal seat 22, and the engaging tooth 2311 meshes with the toothed surface 222. The cover plate 23 is fixed by engaging the connecting arm 231 inside the seal seat 22, so as to ensure the covering effect of the cover plate 23 on the seal seat 22 without being affected by external force. Meanwhile, applying an outward pulling force to the cover plate 23 can separate the engaging tooth 2311 from the toothed surface 222, realize the disassembly of the cover plate 23, and improve the convenience of disassembly and installation of the cover plate 23.

[0028] Furthermore, the sealing seat 22 has outwardly extending mounting blocks 24 on both sides of its end. Each mounting block 24 has an internal mounting cavity 241, and its external side has a mounting channel 242 communicating with the mounting cavity 241. The sealing strip 21 includes a sealing portion 211 and a mounting portion 212. The mounting portion 212 includes two outwardly extending mounting arms 2121. On opposite sides of the mounting arms 2121 are outwardly extending mounting inserts 2122, and the mounting inserts 2122 have limiting protrusions on both sides. The ends of the mounting inserts 2122 are inserted into the mounting cavity 241, and the limiting protrusions are located within the mounting cavity 241 and abut against the inner opening of the mounting channel 242. The mounting cavity 241 accommodates the mounting inserts 2122 and the limiting protrusions 2123. The limiting protrusions 2123 apply a limiting force to the mounting inserts 2122 in a direction away from the mounting arms 2121, ensuring the installation stability of the sealing strip 21. In this embodiment, the end of the limiting protrusion 2123 is inclined. Specifically, the end of the limiting protrusion 2123 is inclined in the opposite direction to the installation direction of the mounting plate 2122, and the limiting protrusions 2123 on both sides form an "eight"-shaped barb structure. Simultaneously, the inner side of the mounting channel 242 is inclined, and the inclination direction of the inner side of the mounting channel 242 is the same as the inclination direction of the limiting protrusion 2123 on the same side. The inner side of the mounting channel 242 forms a guide side to guide the mounting plate 2122 and the limiting protrusion 2123, improving the ease of installation of the limiting plate. The end of the limiting protrusion 2123 has increased flexibility and is inclined towards the side of the inner opening of the mounting channel 242, providing a limiting force to the mounting plate 2122 internally, thus improving the installation stability of the sealing strip 21.

[0029] Please refer to Figure 4 As shown, furthermore, a mounting post 12 is fixed inside the door opening 11, and a strip-shaped mounting hole 121 is formed on the mounting post 12. The end of the mounting arm 2121 extends to both sides of the sealing seat 22. The end of the mounting arm 2121 near the mounting post 12 is provided with an outwardly protruding part 2124, which is interference-fitted between the mounting post 12 and the sealing seat 22. The mounting post 12 elevates the main sealing assembly 2, ensuring that the main sealing assembly 2 corresponds with the side of the door 4, and ensuring the contact effect between the sealing strip 21 and the door 4. In addition, the outwardly protruding part 2124 is provided at the end of the mounting arm 2121. The protruding part 2124 is between the mounting post 12 and the sealing seat 22, sealing the gap between the mounting post 12 and the sealing seat 22, preventing external liquid from entering the interior of the vehicle body through the gap, and improving the waterproof effect of the bus door 4. At the same time, it limits the sealing strip 21, improving the installation stability of the sealing strip 21.

[0030] In this embodiment, a gap exists between the side of the door 4 and the side of the door opening 11 to prevent collision between the door 4 and the vehicle body during opening and closing. A buffer cavity 2111 is provided inside the sealing part 211, and an exhaust channel 2112 is provided on the sealing part 211, extending towards the gap between the door 4 and the door opening 11. This utilization of the gap space improves the exhaust efficiency of the sealing part 211.

[0031] Furthermore, the end of the cover plate 23 is provided with an outwardly extending pressing portion 232, which extends to the outside of the sealing strip 21 and abuts against the end face of the mounting arm 2121. The pressing portion 232 presses and limits the mounting arm 2121 on the other side, and cooperates with the mounting post 12 to provide limiting force on both sides of the sealing strip 21, further improving the installation stability of the sealing strip 21.

[0032] Please refer to Figure 5 As shown, in this embodiment, the main sealing assembly 2 is distributed on both sides and the top surface of the door opening 11, and the bottom inner side of the door 4 is provided with an outwardly extending lower sealing assembly 5, which abuts against the body of the vehicle. Compared to setting the main sealing assembly 2 at the bottom of the door opening 11, the main sealing assembly 2 is easily stepped on during getting in and out of the vehicle, affecting the sealing effect of the main sealing assembly 2 on the bottom of the door 4. The sealing structure at the bottom of the door 4 is set at the bottom inner side of the door 4 and moves with the door 4, avoiding damage to the lower sealing assembly 5 during getting in and out of the vehicle.

[0033] Please refer to Figure 6 As shown, specifically, the lower sealing assembly 5 includes a "U"-shaped mounting base 51 and a lower sealing part 52 connected to the inner side of the "U"-shaped mounting base 51, with the lower sealing part 52 abutting against the vehicle body. The bottom of the door 4 has an outwardly extending mounting plate 41, with the "U"-shaped mounting base 51 inserted into the end of the mounting plate 41. The inner surfaces of the "U"-shaped mounting base 51 are provided with opposing limiting arms 511, the distance between the free ends of the opposing limiting arms 511 being less than the thickness of the mounting plate 41. In this embodiment, the free ends of the opposing limiting arms 511 abut against each other, and the free ends of the limiting arms 511 abut against the mounting plate 41. During the insertion of the U-shaped mounting base 51, the mounting plate 41 enters the interior of the U-shaped mounting base 51, pushing the limiting arm 511 downward. In the completed installation state, the free end of the limiting arm 511 abuts against the mounting plate 41 and remains in a downward extending state. The friction between them provides a limiting force to the U-shaped mounting base 51, ensuring its installation stability. When disassembling the U-shaped mounting base 51, a downward force is applied, causing the mounting plate 41 to move upward, causing the limiting arm 511 to bend upward and separate, thus completing the disassembly of the U-shaped mounting base 51.

[0034] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A hinged door system for a passenger vehicle, characterized in that, It comprises a vehicle body main body, a vehicle door and a drive unit, wherein a door opening is provided on the vehicle body main body, the drive unit is fixed on an inner frame of the vehicle body main body, a drive end of the drive unit is fixedly connected with the vehicle door, and the drive unit drives the vehicle door to close or open the door opening; A strip-shaped assembling hole is fixed on a side surface of the door opening, the strip-shaped assembling hole extends along an inner and outer opening direction of the door opening, a main sealing assembly is fixed on the strip-shaped assembling hole, and a sealing strip of the main sealing assembly extends toward an outer side of the door opening and interferes with a movement path of the vehicle door; The main sealing assembly further comprises a sealing seat and a cover plate, a cross-sectional shape of the sealing seat is a "冂" shape, a fixing member is provided inside the sealing seat, and the fixing member passes through the sealing seat and the strip-shaped assembling hole to be fixedly connected with the door opening; The cover plate is detachably connected to an opening of the sealing seat; the sealing strip is arranged on a side portion of the sealing seat.

2. The hinged door system for a passenger vehicle according to claim 1, characterized in that: A tooth-shaped surface is provided on an inner side of a free end of the sealing seat; an extending connecting arm is provided on a side portion of the cover plate, an engaging tooth is provided on an outer side surface of the connecting arm, the connecting arm extends into the sealing seat, and the engaging tooth meshes with the tooth-shaped surface.

3. The hinged door system for a passenger vehicle according to claim 1, characterized in that: Mounting blocks extending outward are provided on both sides of an end portion of the sealing seat, a mounting cavity is opened inside the mounting block, and a mounting channel communicated with the mounting cavity is provided on an outer side of the mounting block; The sealing strip comprises a sealing part and a mounting part, the mounting part comprises two outwardly extending mounting arms, a mounting insertion plate extending outward is provided on opposite side surfaces of the mounting arms, limiting protrusions are provided on both sides of the mounting insertion plate, an end portion of the mounting insertion plate is inserted into the mounting cavity, and the limiting protrusions are located in the mounting cavity and abut against an inner opening of the mounting channel.

4. The hinged door system for a passenger vehicle according to claim 3, characterized in that: A mounting post is fixed in the door opening, and the strip-shaped assembling hole is opened on the mounting post; End portions of the mounting arms extend to both sides of the sealing seat, a protruding portion protruding outward is provided at an end portion of the mounting arm close to one side of the mounting post, and the protruding portion is assembled between the mounting post and the sealing seat in an interference fit.

5. The hinged door system for a passenger vehicle according to claim 4, characterized in that: A pressing portion extending outward is provided at an end portion of the cover plate, the pressing portion extends to an outer side of the sealing strip and abuts against an end surface of the mounting arm.

6. The hinged door system for a passenger vehicle according to claim 1, characterized in that: The drive unit comprises a telescopic drive motor and a drive connection assembly, a mounting bracket is fixed on the inner frame, and an end portion of the drive motor is hinged to the mounting bracket; The drive connection assembly comprises a hinged seat, a connecting flat plate and two oppositely arranged drive arms; the hinged seat is fixed on an inner side of the vehicle body main body and located at a side portion of the door opening, one ends of the two drive arms are respectively hinged to an upper end and a lower end of the hinged seat, the other ends of the two drive arms are respectively fixedly connected with an upper end and a lower end of the connecting flat plate, and a drive end of the telescopic drive motor is hinged to one of the drive arms; The connecting flat plate is fixedly connected with an inner side of the vehicle door.

7. The hinged door system for a passenger vehicle according to claim 6, characterized in that: The drive arm comprises a bent connecting section and a straight connecting section; One end of the bent connecting section is hinged to the hinged seat, the other end of the bent connecting section is bent outward and connected with one end of the straight connecting section, and the straight connecting section is fixedly connected with the connecting flat plate.

8. The hinged door system for a passenger vehicle according to claim 1, characterized in that: The main seal assemblies are distributed on both sides and the top surface of the door opening, the inner bottom of the vehicle door is provided with a downward seal assembly extending outward, and the downward seal assembly abuts against the vehicle body.

9. The hinged door system for a passenger vehicle according to claim 8, characterized in that: The downward seal assembly comprises an inverted U-shaped mounting seat and a downward sealing part connected to the inner side of the inverted U-shaped mounting seat, and the downward sealing part abuts against the vehicle body; The bottom of the vehicle door is provided with an outwardly extending mounting plate, the inverted U-shaped mounting seat is inserted into the end of the mounting plate, oppositely arranged limiting arms are arranged between inner side surfaces of the inverted U-shaped mounting seat, the distance between the free ends of the opposite limiting arms is smaller than the thickness of the mounting plate, and the free ends of the limiting arms abut against the mounting plate.

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