A vehicle door sealing strip structure and a vehicle door

Abstract

The application provides a vehicle door sealing strip structure and a vehicle door, and relates to the technical field of vehicle doors. The vehicle door is characterized in that a connecting plate is fixedly connected to the outside of a door frame, the connecting plate is hinged to the door frame, a fixed frame is fixedly connected to one side of the door frame, a sliding groove is formed in one side of the fixed frame, a fixed mounting frame is fixedly connected to one side of the door frame, an inflation assembly is arranged in the fixed frame, and a plurality of positioning cylinders are arranged in the fixed mounting frame. The second folding air bag is inflated, the flexible contact column is pushed out of the positioning cylinder, the hand of a person is contacted and reminded by the positioning cylinder when the hand is at the edge of the door frame, the hand is retracted, the hand of the person is prevented from being clamped when the door frame is closed, and the person is prevented from being hurt.

Description

TECHNICAL FIELD

[0001] The present application relates to a sealing strip structure and a vehicle door, in particular to a vehicle door sealing strip structure and a vehicle door, belonging to the technical field of vehicle doors. BACKGROUND

[0002] With the development of social economy, cars have become an important means of transportation in people's lives, and more and more families own private cars. The vehicle door is an important part of the car, and the sealing strip outside the vehicle door.

[0003] The present application discloses a vehicle door structure with patent No. CN204225701U, which comprises a door body, the door body comprising an inner surface located inside the car and an outer surface located outside the car, the inner surface being provided with a sundry containing box, the inner surface being provided with a horizontally extending convex rail, the side of the sundry containing box being provided with a sliding groove movable left and right along the convex rail; the top of the sundry containing box is hingedly connected to one end of a top cover, the other end of the top cover is provided with a first magnet, and the sundry containing box is provided with a second magnet attracted to the first magnet; the upper and lower parts of the inner surface are each provided with an article fixing structure, the article fixing structure comprising a buckle portion provided at the left end of the inner surface and a connecting belt provided at the right end of the inner surface, the connecting belt being provided with a buckle member buckled with the buckle portion; the inner surface of the door is provided with a rubber layer, a sponge layer and a fluff layer from inside to outside. The movable containing box, the rubber layer, the sponge layer and the fluff layer can prevent the person inside the car from being injured, and the article fixing structure can fix the articles inside the car.

[0004] The above-mentioned scheme has many benefits, but has the following defects:

[0005] 1. The anti-pinch device mostly detects whether the door is pinched by an object through a sensor installed on the edge of the door. During the process of opening or closing the door, once the sensor detects that the door is pinched by an object, it will send a signal to the controller, and the controller will in turn control the door to open or close again to achieve the effect of safety protection. However, the above-mentioned anti-pinch device relies heavily on the sensor and the controller, and if they fail, the door will either not work or may continuously pinch the passenger;

[0006] 2. The electronic sensor is usually a single sensor, which has errors in monitoring and cannot accurately monitor. SUMMARY

[0007] (I) Technical problems solved

[0008] The purpose of the present application is to solve the above problems and provide a car door sealing strip structure and a car door to solve the problem that in the prior art, the anti-pinch device mostly detects whether the door is pinched by an object through a sensor installed on the door edge, and during the opening or closing of the door, once the sensor detects that the door is pinched by an object, it sends a signal to the controller, which in turn controls the door to open or close again to achieve the effect of safety protection, and the anti-pinch device relies heavily on the sensor and the controller and other electrical components, if the two fail, the door either cannot work or may continuously pinch the passenger; the electronic sensor is often a single sensor, which has errors in monitoring and cannot accurately monitor the invention content.

[0009] (II) Technical scheme

[0010] The present application is implemented by the following technical scheme: a car door, comprising a door frame and a car body, the outer side of the door frame is fixedly connected with a connecting plate, the connecting plate is hinged with the door frame, one side of the door frame is fixedly connected with a fixed frame, one side of the fixed frame is provided with a sliding groove, one side of the door frame is fixedly connected with a fixed mounting frame, the inside of the fixed frame is provided with an inflation assembly, the inside of the fixed mounting frame is provided with a plurality of positioning cylinders, and the plurality of positioning cylinders are all provided with an ejection assembly;

[0011] The fixed frame is provided with a reinforcing assembly on one side for reinforcement.

[0012] Preferably, the inflation assembly comprises a push rod, one end of the push rod is hinged with the car body, the other end of the car body is hinged with a push plate, the push plate is arranged in the inside of the fixed frame, the push plate is slidingly connected with the fixed frame, and the push plate is partially extended to the outside of the fixed frame through the sliding groove.

[0013] Preferably, the inflation assembly further comprises two extrusion rods, the outside of the two extrusion rods is all sleeved with a fixed cylinder, the extrusion rod penetrates one side of the fixed cylinder and is slidingly connected with the fixed cylinder, the fixed cylinder is fixedly connected with the fixed frame, one end of the extrusion rod is fixedly connected with a first push disc, one side of the first push disc is fixedly connected with a first folding air bag, the first push disc is fixedly connected with a first spring on the other side, the first spring is sleeved on the outside of the extrusion rod and fixedly connected with the fixed cylinder, the first folding air bag can be expanded by pulling the first folding air bag through the first spring, and then the inside of the first folding air bag is recharged with gas.

[0014] Preferably, the ejection assembly comprises a flexible contact column arranged in the positioning cylinder and in sliding connection with the positioning cylinder, one end of the flexible contact column is fixedly connected with a second folding air bag, the second folding air bag is fixedly connected with the positioning cylinder, a telescopic rod is fixedly connected between the flexible contact column and one end of the positioning cylinder inside, a second spring is sleeved outside the telescopic rod, and two ends of the second spring are fixedly connected with the flexible contact column and the positioning cylinder respectively.

[0015] Preferably, one end of each of the two first folding air bags is fixedly connected with a mounting pipe, a communication pipe corresponding to the plurality of positioning cylinders is fixedly connected outside the mounting pipe, the communication pipe passes through the fixed frame and the fixed mounting frame and is fixedly communicated with the plurality of second folding air bags respectively, and the flexible contact column is ejected to prompt the person and avoid being injured by the door frame.

[0016] Preferably, the reinforcing assembly comprises a mounting column arranged in the middle of the fixed frame, a mounting cylinder fixedly connected on one side of the fixed frame, a moving plate arranged in the mounting cylinder, a buffer column fixedly connected to the bottom of the moving plate, a connecting column arranged on the top of the buffer column, the connecting column penetrating through the buffer column and fixedly connected with the moving plate, a fixed rod fixedly connected between the connecting column and the mounting column, and a third spring sleeved outside the buffer column.

[0017] A door sealing strip structure comprises a sealing strip, the two sides of the sealing strip are provided with protruding blocks, the two protruding blocks are symmetrically arranged, the top of the sealing strip is fixedly connected with an arc-shaped strip, and the inside of the sealing strip is fixedly connected with a plurality of adsorption pads.

[0018] Preferably, limit grooves are formed in the two sides of the sealing strip, and the limit grooves are arranged in a trapezoidal cross section.

[0019] An automobile door system comprises:

[0020] A detection unit is configured to monitor the edge of the door.

[0021] A data comparison module is configured to compare and judge the monitored data, the output end of the detection unit is connected with the input end of the data comparison module, the input end of the data comparison module is connected with a pre-stored data module, and the input end of the pre-stored data module is connected with a data interval setting module.

[0022] A central processing unit is connected with the output end of the data comparison module, the output end of the central processing unit is connected with the output end of an execution module, and the output end of the central processing unit is connected with a data storage unit.

[0023] The detection unit includes an infrared sensor, a pressure sensor, and a displacement sensor, all of which are connected to the input of the data comparison module.

[0024] Preferably, the data range setting module includes an infrared data module, a pressure data module, and a displacement data module, and the output terminals of the infrared data module, the pressure data module, and the displacement data module are all connected to the input terminal of the pre-stored data module.

[0025] This invention provides a door sealing strip structure and a car door, which have the following beneficial effects:

[0026] 1. The car door uses a first push plate to push a first folding airbag on one side. The first folding airbag is compressed, and the gas inside the first folding airbag is injected into a second folding airbag inside the positioning cylinder through the installation tube. This causes the second folding airbag to inflate. When the second folding airbag inflates, it pushes a flexible contact post, which is then pushed out of the positioning cylinder. When a person's hand is at the edge of the door frame, the positioning cylinder provides a contact reminder to the person's hand, causing the person's hand to retract. This prevents the person's hand from being pinched when the door frame is pulled closed, thus avoiding injury.

[0027] 2. When an impact occurs in the middle of the car door frame, the connecting column is pulled by four fixed rods, which in turn pulls the moving plate. Since there is a buffer column on the top of the moving plate, the moving plate squeezes the buffer column, thereby dispersing the tension of the connecting column.

[0028] 3. The door sealing strip structure creates a blocking effect when the lower part of the sealing strip is inserted into the outside of the door frame, and there is an arc-shaped strip at the top of the sealing strip. The arc-shaped strip can prevent rainwater from staying and allow rainwater to slide off automatically, avoiding the accumulation of rainwater.

[0029] 4. This door system uses a data comparison module to compare received data with pre-set values. When there are significant fluctuations in the data, the data is sent to the central processor, which then sends a signal to the execution module. This causes the execution module to control an external alarm to sound, thus alerting the personnel. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the fixed frame structure of the present invention;

[0032] Figure 3 This is a schematic cross-sectional view of the fixed frame structure of the present invention;

[0033] Figure 4This is a schematic cross-sectional view of the fixed cylinder structure of the present invention;

[0034] Figure 5 This is a schematic diagram of the fixed mounting frame structure of the present invention;

[0035] Figure 6 This is a schematic diagram of the positioning cylinder structure of the present invention;

[0036] Figure 7 This is a schematic diagram of the ejector component structure of the present invention;

[0037] Figure 8 This is a schematic diagram of the reinforced component structure of the present invention;

[0038] Figure 9 This is a schematic cross-sectional view of the mounting cylinder structure of the present invention;

[0039] Figure 10 This is a schematic diagram of the sealing strip structure of the present invention;

[0040] Figure 11 This is a schematic cross-sectional view of the sealing strip of the present invention;

[0041] Figure 12 This is a schematic diagram of the door system structure of the present invention.

[0042] [Explanation of Key Component Symbols]

[0043] 1. Door frame; 2. Body; 3. Fixing frame; 4. Connecting plate; 5. Push rod; 7. Push plate; 8. Pressing rod; 9. Fixing cylinder; 10. Fixing mounting frame; 11. First push plate; 12. First folding airbag; 13. First spring; 14. Mounting tube; 15. Positioning cylinder; 16. Flexible contact post; 17. Second folding airbag; 18. Telescopic rod; 19. Second spring; 20. Mounting post; 21. Mounting cylinder; 22. Buffer post; 23. Moving plate; 24. Third spring; 25. Connecting post; 26. 27. Fixing rod; 2701. Sealing strip; 2702. Limiting groove; 2703. Protrusion block; 2704. Arc strip; 2705. Adsorption pad; 28. Central processing unit; 29. ​​Detection unit; 291. Infrared sensor; 292. Pressure sensor; 293. Displacement sensor; 30. Data comparison module; 31. Pre-stored data module; 32. Data range setting module; 321. Infrared data module; 322. Pressure data module; 323. Displacement data module; 33. Execution module; 34. Data storage unit. Detailed Implementation

[0044] This invention provides a door sealing strip structure and a car door.

[0045] Please see Figure 1 , Figure 2 , Figure 3 ,Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 A connecting plate 4 is fixedly connected to the outside of the door frame 1. The connecting plate 4 is hinged to the door frame 1. A fixed frame 3 is fixedly connected to one side of the door frame 1. A sliding groove is provided on one side of the fixed frame 3. A fixed mounting frame 10 is fixedly connected to one side of the door frame 1. An inflation component is provided inside the fixed frame 3. Multiple positioning cylinders 15 are provided inside the fixed mounting frame 10. Each of the multiple positioning cylinders 15 is provided with an ejection component.

[0046] A reinforcing component is provided on one side of the fixed frame 3 for reinforcement.

[0047] The inflation assembly includes a push rod 5, one end of which is hinged to the vehicle body 2, and the other end of the vehicle body 2 is hinged to a push plate 7. The push plate 7 is disposed inside the fixed frame 3 and is slidably connected to the fixed frame 3. Part of the push plate 7 extends to the outside of the fixed frame 3 through a groove. The inflation assembly also includes two compression rods 8, each with a fixed cylinder 9 sleeved on its outer side. The compression rod 8 passes through one side of the fixed cylinder 9 and is slidably connected to the fixed cylinder 9. The fixed cylinder 9 is fixedly connected to the fixed frame 3. One end of the compression rod 8 is fixedly connected to a first push plate 11. One side of the first push plate 11 is fixedly connected to a first folding airbag 12. Between the first folding airbag 12 and the fixed cylinder 9, and on the other side of the first push plate 11, a first spring 13 is fixedly connected. The first spring 13 is sleeved on the outside of the compression rod 8 and fixedly connected to the fixed cylinder 9. The first folding airbag 12 can be inflated by pulling the first spring 13, thereby re-inflating the first folding airbag 12 with gas.

[0048] The ejection assembly includes a flexible contact post 16, which is disposed inside the positioning cylinder 15 and slidably connected to the positioning cylinder 15. A second folded airbag 17 is fixedly connected to one end of the flexible contact post 16, and the second folded airbag 17 is fixedly connected to the positioning cylinder 15. A telescopic rod 18 is fixedly connected between the flexible contact post 16 and one end inside the positioning cylinder 15. A second spring 19 is sleeved on the outside of the telescopic rod 18, and the two ends of the second spring 19 are fixedly connected to the flexible contact post 16 and the positioning cylinder 15, respectively.

[0049] Each of the two first folding airbags 12 has a mounting tube 14 fixedly connected to one end. The mounting tube 14 has a connecting tube that corresponds to one of the multiple positioning cylinders 15. The connecting tube passes through the fixed frame 3 and the fixed mounting frame 10 and is fixedly connected to the multiple second folding airbags 17 respectively. It is pushed out through the flexible contact post 16, thereby alerting the personnel and preventing them from being pinched by the door frame 1.

[0050] Specifically, when the door frame 1 is hinged to the body 2 via the connecting plate 4, and one end of the push rod 5 is mounted on one side of the body 2 and hinged thereto, when a person closes the door, the push rod 5 will push the push plate 7 to move. Since the push plate 7 slides inside the fixed frame 3, it pushes the compression rod 8 fixedly connected to one side to move. The compression rod 8 then pushes the first push plate 11 fixedly connected to one end, causing the first push plate 11 to push the first folding airbag 12 on one side, thus compressing the first folding airbag 12. The gas inside the first folding airbag 12 is injected into the second folding airbag 17 inside the positioning cylinder 15 through the installation tube 14, thereby causing the second folding airbag 17 to inflate. When the second folding airbag 17 inflates, it pushes the flexible contact post 16, thereby causing the flexible contact post 16 to be pushed out of the positioning cylinder 15. When the person's hand is at the edge of the door frame 1, the positioning cylinder 15 provides a contact reminder to the person's hand, causing the person's hand to retract, thereby preventing the person's hand from being pinched when the door frame 1 is pulled closed, thus preventing injury to the person.

[0051] Please refer to it again. Figure 10 and Figure 11 The reinforcing component includes a mounting post 20, which is located in the middle of the fixed frame 3. A mounting cylinder 21 is fixedly connected to one side of the fixed frame 3. A movable plate 23 is provided inside the mounting cylinder 21. A buffer post 22 is fixedly connected to the bottom of the movable plate 23. A connecting post 25 is provided at the top of the buffer post 22. The connecting post 25 passes through the buffer post 22 and is fixedly connected to the movable plate 23. A fixing rod 26 is fixedly connected between the connecting post 25 and the mounting post 20. A third spring 24 is sleeved on the outside of the buffer post 22.

[0052] Specifically, a mounting post 20 is fixedly connected to one side of the fixed frame 3. When an impact occurs in the middle of the door frame 1, the connecting post 25 is pulled by the four fixed rods 26, which in turn pulls the moving plate 23. Since the top of the moving plate 23 is equipped with a buffer post 22, the moving plate 23 squeezes the buffer post 22, thereby dispersing the pulling force of the connecting post 25.

[0053] Please refer to it again. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 11A door sealing strip structure includes a sealing strip 27, with protrusions 2702 on both sides of the sealing strip 27, the two protrusions 2702 being symmetrically arranged, an arc-shaped strip 2703 being fixedly connected to the top of the sealing strip 27, and multiple adsorption pads 2704 being fixedly connected inside the sealing strip 27. Water is blocked by the arc-shaped strip 2703 to prevent rainwater from accumulating.

[0054] Both sides of the sealing strip 27 have limit grooves 2701, and the cross-section of the limit grooves 2701 is set as trapezoidal.

[0055] Specifically, a sealing strip 27 can be fitted on the outside of the door frame 1. The protrusions 2702 and limiting grooves 2701 on both sides of the sealing strip 27 form a stepped shape. When the lower part of the sealing strip 27 is inserted into the outside of the door frame 1, it forms a blocking effect. Furthermore, an arc-shaped strip 2703 is provided at the top of the sealing strip 27 to prevent rainwater from accumulating.

[0056] Please refer to it again. Figure 12 A car door system, comprising:

[0057] Detection unit 29 is used to monitor the edge of the door;

[0058] The data comparison module 30 is used to compare and judge the monitored data. The output end of the detection unit 29 is connected to the input end of the data comparison module 30. The input end of the data comparison module 30 is connected to the pre-stored data module 31, and the input end of the pre-stored data module 31 is connected to the data range setting module 32.

[0059] The central processing unit 28 has its input terminal connected to the output terminal of the data comparison module 30, its output terminal connected to the output terminal of the execution module 33, and its output terminal connected to the data storage unit 34.

[0060] The detection unit 29 includes an infrared sensor 291, a pressure sensor 292, and a displacement sensor 293. The infrared sensor 291, pressure sensor 292, and displacement sensor 293 are all connected to the input terminal of the data comparison module 30.

[0061] The data range setting module 32 includes an infrared data module 321, a pressure data module 322, and a displacement data module 323. The output terminals of the infrared data module 321, the pressure data module 322, and the displacement data module 323 are all connected to the input terminal of the pre-stored data module 31.

[0062] Specifically, an infrared sensor 291, a pressure sensor 292, and a displacement sensor 293 are provided on the outside of the door frame 1. The infrared sensor 291 monitors in real time whether there are objects at the edge of the door, the pressure sensor 292 analyzes the pressure generated when the door frame 1 is closed, and the displacement sensor 293 monitors whether the door frame 1 is closed properly.

[0063] When the data from the infrared sensor 291, pressure sensor 292, and displacement sensor 293 are input into the data comparison module 30, the received data is compared with the values ​​preset inside the data comparison module 30. When there is a large fluctuation in the data, it is sent to the central processing unit 28, which then sends a signal to the execution module 33, causing the execution module 33 to control an external alarm to sound, thereby alerting personnel.

[0064] Working principle: When the door frame 1 is hinged to the body 2 via the connecting plate 4, and one end of the push rod 5 is installed on one side of the body 2 and hinged to the body 2, when the person closes the door, the push rod 5 will push the push plate 7 to move. Since the push plate 7 slides inside the fixed frame 3, the push plate 7 pushes the compression rod 8 fixedly connected on one side to move. The compression rod 8 pushes the first push plate 11 fixedly connected at one end, so that the first push plate 11 pushes the first folding airbag 12 on one side, so that the first folding airbag 12 is compressed. The gas inside the first folding airbag 12 is filled into the second folding airbag 17 inside the positioning cylinder 15 through the installation tube 14, so that the second folding airbag 17 expands. When the second folding airbag 17 expands, it pushes the flexible contact post 16, so that the flexible contact post 16 is pushed out of the positioning cylinder 15. When the person's hand is at the edge of the door frame 1, the positioning cylinder 15 reminds the person's hand to retract, so as to avoid the person's hand being pinched when pulling the door frame 1 to close.

[0065] Furthermore, a mounting post 20 is fixedly connected to one side of the fixed frame 3. When an impact occurs in the middle of the door frame 1, the connecting post 25 is pulled by the four fixed rods 26, causing the connecting post 25 to pull the moving plate 23. Since the top of the moving plate 23 is equipped with a buffer post 22, the moving plate 23 squeezes the buffer post 22, thereby dispersing the pulling force of the connecting post 25.

[0066] A sealing strip 27 can be fitted on the outside of the door frame 1. The protrusions 2702 and the limiting grooves 2701 on both sides of the sealing strip 27 form a stepped shape. When the lower part of the sealing strip 27 is inserted into the outside of the door frame 1, it forms a blocking effect. An arc-shaped strip 2703 is provided at the top of the sealing strip 27. The arc-shaped strip 2703 can prevent rainwater from accumulating.

[0067] An infrared sensor 291, a pressure sensor 292, and a displacement sensor 293 are provided on the outside of the door frame 1. The infrared sensor 291 monitors in real time whether there are objects at the edge of the door, the pressure sensor 292 analyzes the pressure generated when the door frame 1 is closed, and the displacement sensor 293 monitors whether the door frame 1 is closed properly.

[0068] When the data from the infrared sensor 291, pressure sensor 292, and displacement sensor 293 are input into the data comparison module 30, the received data is compared with the values ​​preset inside the data comparison module 30. When there is a large fluctuation in the data, it is sent to the central processing unit 28, which then sends a signal to the execution module 33, causing the execution module 33 to control an external alarm to sound, thereby alerting personnel.

[0069] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A car door, comprising a door frame (1) and a body (2), characterized in that: A connecting plate (4) is fixedly connected to the outside of the door frame (1), and the connecting plate (4) is hinged to the door frame (1). A fixing frame (3) is fixedly connected to one side of the door frame (1), and a sliding groove is provided on one side of the fixing frame (3). A fixing mounting frame (10) is fixedly connected to one side of the door frame (1). An inflation assembly is provided inside the fixing frame (3), and multiple positioning cylinders (15) are provided inside the fixing mounting frame (10). Each of the multiple positioning cylinders (15) is provided with an ejection assembly. A reinforcement is provided on one side of the fixing frame (3). The inflation assembly includes a push rod (5), one end of which is hinged to the vehicle body (2), and the other end of which is hinged to a push plate (7). The push plate (7) is disposed inside the fixed frame (3) and is slidably connected to the fixed frame (3). Part of the push plate (7) extends to the outside of the fixed frame (3) through a groove. The inflation assembly also includes two extrusion rods (8), and a fixed cylinder (9) is sleeved on the outside of each of the two extrusion rods (8). The extrusion rods (8) pass through one side of the fixed cylinder (9) and are connected to the fixed frame (3). The fixed cylinder (9) is slidably connected to the fixed frame (3). One end of the extrusion rod (8) is fixedly connected to the first push plate (11). One side of the first push plate (11) is fixedly connected to the first folding airbag (12). Between the first folding airbag (12) and the fixed cylinder (9), and on the other side of the first push plate (11), a first spring (13) is fixedly connected. The first spring (13) is sleeved on the outside of the extrusion rod (8) and fixedly connected to the fixed cylinder (9). The ejection assembly includes a flexible contact column (16). The flexible contact post (16) is disposed inside the positioning cylinder (15) and is slidably connected to the positioning cylinder (15). A second folded airbag (17) is fixedly connected to one end of the flexible contact post (16). The second folded airbag (17) is fixedly connected to the positioning cylinder (15). A telescopic rod (18) is fixedly connected between the flexible contact post (16) and one end inside the positioning cylinder (15). A second spring (19) is sleeved on the outside of the telescopic rod (18). The two ends of the second spring (19) are fixedly connected to the flexible contact post (16) and the positioning cylinder (15) respectively.

2. A car door according to claim 1, characterized in that: Each of the two first folding airbags (12) is fixedly connected to an installation tube (14) at one end. The outside of the installation tube (14) is fixedly connected to a connecting tube corresponding to a plurality of positioning cylinders (15). The connecting tube passes through the fixed frame (3) and the fixed installation frame (10) and is fixedly connected to a plurality of second folding airbags (17).

3. A car door according to claim 2, characterized in that: The reinforcing component includes a mounting column (20), which is located in the middle of the fixed frame (3). A mounting cylinder (21) is fixedly connected to one side of the fixed frame (3). A movable plate (23) is provided inside the mounting cylinder (21). A buffer column (22) is fixedly connected to the bottom of the movable plate (23). A connecting column (25) is provided at the top of the buffer column (22). The connecting column (25) passes through the buffer column (22) and is fixedly connected to the movable plate (23). A fixing rod (26) is fixedly connected between the connecting column (25) and the mounting column (20). A third spring (24) is sleeved on the outside of the buffer column (22).

4. A car door system, comprising a car door as described in any one of claims 1-3, characterized in that, include: Detection unit (29) is used to monitor the edge of the door; The data comparison module (30) is used to compare and judge the monitored data. The output end of the detection unit (29) is connected to the input end of the data comparison module (30). The input end of the data comparison module (30) is connected to the pre-stored data module (31). The input end of the pre-stored data module (31) is connected to the data range setting module (32). The central processing unit (28) is connected to the output end of the data comparison module (30). The output end of the central processing unit (28) is connected to the output end of the execution module (33). The output end of the central processing unit (28) is connected to the data storage unit (34). The detection unit (29) includes an infrared sensor (291), a pressure sensor (292), and a displacement sensor (293). The infrared sensor (291), pressure sensor (292), and displacement sensor (293) are all connected to the input end of the data comparison module (30).

5. A car door system according to claim 4, characterized in that: The data range setting module (32) includes an infrared data module (321), a pressure data module (322), and a displacement data module (323). The output terminals of the infrared data module (321), the pressure data module (322), and the displacement data module (323) are all connected to the input terminal of the pre-stored data module (31).

Images