A car side skirt capable of automatically opening and closing and a corresponding high-end welcoming car

Abstract

The invention discloses a car side skirt that can be opened and closed automatically, belongs to the field of automobile technology, and includes a side skirt body and a transmission device; the side skirt body includes a fixed plate connected to the lower side beam, a mud guard and a dust shield box that are rotatably connected to the fixed plate through a rotating shaft; a linkage device is rotatably connected to the fixed plate, and the linkage device includes a first connecting plate and a second connecting plate, one side of the first connecting plate is movably connected to the dust shield box, and one side of the second connecting plate is rotatably connected to the inner wall of the dust shield box. The invention also discloses a high-end welcoming car, including a car body, a car door rotatably connected to the car body, and a car side skirt fixed on the lower side beam of the car body. The mud guard of the invention can be stored in the dust shield box, will not be exposed for a long time, can keep it clean for a long time, prevent the driver and passenger from getting their trouser legs dirty when getting on and off the car, can increase the experience of high-end cars, and make the driver and passenger experience VIP treatment, is easy to use, has low production cost, and is suitable for making side skirts of all cars.

Description

Technical Field

[0001] The invention belongs to the technical field of automobiles, relates to an automobile side skirt which can be opened and closed automatically, and also relates to a high-end welcoming automobile. Background Art

[0002] Most of the existing automobile side skirts are sheet-shaped structures fixed on the lower side beam of the automobile. On the one hand, they can play a role in aesthetics, and on the other hand, they can reduce the wind flow under the car. However, when the car passes through a muddy road, the side skirts of the car will be covered with mud. When the driver and passengers get on and off the car, it is very easy for the mud attached to the side skirts to dirty their trouser legs, or the rain on the side skirts to wet their trouser legs. Even if the car is running normally in sunny weather, dust and other impurities will be attached to the side skirts. If the car is not washed in time, the trouser legs of the driver and passengers may also be dirty.

[0003] For high-end welcoming cars, the mud or dust attached to the side skirts of the car may dirty the trouser legs or skirts of the driver and passengers, which greatly reduces the driver and passengers' experience, makes the high-end welcoming car unable to provide adequate service to the guests, and reduces the grade of high-end cars. Summary of the invention

[0004] In order to solve the above deficiencies in the prior art, the present invention aims to provide a car side skirt that can be opened and closed automatically, so as to prevent foreign matter such as mud from being attached to the car side skirt, avoid dirtying the trouser legs when getting on and off the car, and keep the car side skirt clean and hygienic;

[0005] The present invention also provides a high-end welcoming car to achieve the purpose of increasing the high-end car experience, making the car more powerful, and improving the comfort of the car in all aspects.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0007] An automobile side skirt capable of opening and closing automatically comprises a side skirt body and a transmission device for opening and closing the side skirt body;

[0008] The side skirt body comprises a fixing plate connected to the lower side beam of the vehicle, a fender rotatably connected to the fixing plate via a rotating shaft, and a dust shield box rotatably connected to the fender;

[0009] The fixed plate is rotatably connected to a linkage device for supporting the dust shield box, the linkage device includes a first connecting plate rotatably connected to the fixed plate and a second connecting plate rotatably connected to the fixed plate, a side of the first connecting plate not connected to the fixed plate passes through the dust shield box and is movably connected to the dust shield box, and a side of the second connecting plate not connected to the fixed plate is rotatably connected to an inner wall of the dust shield box, so as to prevent the dust shield box from shaking when it is opened;

[0010] The transmission device drives the rotating shaft to rotate.

[0011] As a limitation of the present invention: a side of the dust shielding box facing the fixed plate is a slope.

[0012] As another limitation of the present invention: a sealing member is fixedly provided on the lower side beam of the automobile, and the position of the sealing member is the same as the position where the side wall of the dust shielding box is buckled on the lower side beam.

[0013] As a limitation of the present invention: the transmission device comprises a first transmission shaft, a second transmission shaft, a third transmission shaft and a fourth transmission shaft rotatably connected to the vehicle body;

[0014] One end of the first transmission shaft is meshed with the door shaft through teeth, and the other end is fixed with a first rotating disk, and the end surface of the first rotating disk is provided with lower teeth;

[0015] One end of the second transmission shaft is sleeved with a second rotating disk through an overload protection device, an end surface of the second rotating disk is provided with upper teeth matching with the lower teeth, and the other end thereof is detachably connected to the third transmission shaft through a connecting device;

[0016] The third transmission shaft is fixedly connected to the fourth transmission shaft via a connecting member;

[0017] The fourth transmission shaft drives the rotating shaft to rotate through the reversing gear set.

[0018] As a further limitation of the present invention: the overload protection device includes a baffle fixedly mounted on the end of the second transmission shaft, a through groove arranged on the inner wall of the second turntable, and a protrusion arranged on the outer wall of the second transmission shaft and cooperating with the through groove, wherein the through groove and the protrusion cooperate to limit circumferential rotation; and also includes a spring sleeved on the second transmission shaft and a nut threadedly connected to the second transmission shaft, wherein two nuts are provided, one end of the spring abuts against the second turntable, and the other end abuts against the nut.

[0019] As a further limitation of the present invention: the connecting device includes a sleeve and a ejector pin, the second transmission shaft and the third transmission shaft are both provided with external threads, the inner wall of the sleeve is provided with internal threads matching the external threads, the ejector pin is threadedly connected to the outer wall of the sleeve and abuts against the second transmission shaft or the third transmission shaft.

[0020] As a further limitation of the present invention: the gear reversing group includes a toothed disc fixed on the fourth transmission shaft and teeth arranged on the end surface of the rotating shaft, the teeth on the toothed disc are arranged around the circumference of the toothed disc, and the toothed disc is meshed with the teeth on the rotating shaft to drive the fender to rotate;

[0021] The connecting piece is a universal joint.

[0022] As a limitation of the present invention: the transmission device includes a scissors-type structure, one end of the scissors-type structure is provided with a first free end and a second free end, and the other end is extended at the hinge point to form a third free end, wherein the first free end is provided on the vehicle body, and the second free end is detachably provided on the vehicle door through a snap; the third free end is connected to a rack through a ball joint bearing, and one end of the ball joint bearing connected to the rack is sleeved with a second spring, one end of the second spring is against the rack, and the rotating shaft is provided with teeth matching the rack.

[0023] As a further limitation of the present invention: the vehicle body and the vehicle door are both provided with insertion holes, the buckle is made of elastic material, one end of which is a closed end that can be retracted in the insertion hole, and the other end can be retracted inwardly by power and can also be opened outwardly under the action of elastic force.

[0024] A high-end welcoming car comprises a car body, car doors rotatably connected to the car body and car side skirts fixedly arranged on the lower side beam of the car body, wherein the car side skirts adopt any one of the above technical solutions.

[0025] Due to the adoption of the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0026] (1) Driven by the rotating shaft, the dust shield box of the present invention is buckled on the fixed plate and fits with the lower side beam of the car, so that the fender is stored in the dust shield box. When the door is opened, the fender is lowered. Since the fender is stored in the dust shield box, foreign matter will not be attached to it. When the driver and passengers get off the car, their trouser legs will not be dirty. When the car door is closed, the fender is stored in the dust shield box to prevent it from being exposed to the outside. The fender of the device can be kept clean at all times, and slogans can be pasted on the fender. For high-end cars, the experience and comfort of the driver and passengers are increased. When welcoming guests, with the lighting effect, the lights are on, the doors are opened, and the fenders are lowered, which can show the VIP treatment to the drivers and passengers, and enhance the functionality of high-end cars; the first connecting plate and the second connecting plate can rotate around the fixed plate, the first connecting plate can not only keep the dust cover box in a stable state when it is opened, but also extend the mudguard position, and the second connecting plate can prevent the dust cover box from colliding with the lower side beam of the car when it is opened, so that the dust cover box can be opened at an angle, which can not only save space for opening the dust cover box, but also reduce the obstruction of the dust cover box when the drivers and passengers get off the car, making it easier to stretch their legs;

[0027] (2) The slope on the dust shield box of the present invention can prevent the accumulation of impurities and facilitate the discharge of impurities. The sealing member is provided on the lower side beam of the automobile, which can not only seal the dust shield box, but also play a role in buffering and shock absorption, thereby preventing the dust shield box from colliding with the lower side beam of the automobile.

[0028] (3) The transmission device of the present invention is provided with a four-stage transmission, which can increase the flexibility of the transmission and prevent the four transmission shafts from being broken due to excessive rigidity during the transmission process. The second transmission shaft and the third transmission shaft are detachably connected. When the side skirt body is not needed, the second transmission shaft and the third transmission shaft are separated for easy control. The third transmission shaft and the fourth transmission shaft are connected by a universal joint, which reduces the requirement for coaxiality when the two are installed, and is easy to install and adjust.

[0029] (4) The spring of the present invention can play the role of overload protection. When the nut is adjusted upward, the spring is compressed, and the elastic potential energy of the spring is increased, so that the first rotating disk and the second rotating disk are more closely engaged, and the transmission is more stable;

[0030] (5) The sleeve of the present invention connects the second transmission shaft and the third transmission shaft through a thread. The connection and separation between the two can be achieved by simply rotating the sleeve. The structure is simple and easy to adjust. The ejector pin fixes the sleeve and the third transmission shaft to ensure that the dust shielding box is in a normally closed state.

[0031] (6) The scissor structure of the present invention can drive the rack to move up and down, and the rack cooperates with the rotating shaft to rotate the fender. This structure is suitable for cars where the body and the door are connected by hinges. The structure is simple and easy to control.

[0032] (7) The buckle of the present invention can realize the disassembly of one free end of the scissor structure. When the side skirt body is not needed, one end of the scissor structure can be disassembled, which is convenient for adjustment and has low manufacturing cost.

[0033] To sum up, the fender of the present invention can be stored in the dust box and will not be exposed for a long time, so it can be kept clean for a long time and prevent the driver and passengers from getting their trouser legs dirty when getting on and off the car. It can increase the experience of a high-end car and is clean and hygienic, allowing the driver and passengers to experience VIP treatment. It is easy to use and has a low production cost, and is suitable for making side skirts of all cars. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] Figure 1 It is a schematic diagram of the three-dimensional structure of the side skirt body 1 of Example 1 of the present invention;

[0036] Figure 2 This is a structural schematic diagram of the transmission device connected to the rotating shaft 32 after the vehicle door is fully opened in Example 1 of the present invention;

[0037] Figure 3 This is a schematic structural diagram of the connection between the first transmission shaft 4 and the second transmission shaft 8 in Example 1 of the present invention;

[0038] Figure 4This is a schematic cross-sectional view of the connection between the second rotating disk 9 and the second transmission shaft 8 in Embodiment 1 of the present invention;

[0039] Figure 5 It is a schematic diagram of the three-dimensional structure when the teeth on the rotating shaft 32 of Example 1 of the present invention are on the end surface;

[0040] Figure 6 This is a schematic diagram of the front view of the structure of the transmission device connected to the rotating shaft 32 in Example 2 of the present invention;

[0041] Figure 7 It is a left-side structural schematic diagram of a transmission device according to Embodiment 2 of the present invention;

[0042] Figure 8 It is a schematic diagram of the cross-sectional structure of the buckle according to embodiment 2 of the present invention.

[0043] In the figure: 1-lower beam, 2-door shaft, 3-side skirt body, 31-fixed plate, 32-rotating shaft, 33-fender, 34-dust box, 35-linkage device, 351-first connecting plate, 352-second connecting plate, 4-first transmission shaft, 5-first turntable, 6-nut, 7-spring, 8-second transmission shaft, 9-second turntable, 10-third transmission shaft, 11-connecting device, 111-sleeve, 112-thimble, 12-universal joint, 13-fourth transmission shaft, 14-toothed disc, 15-bearing seat, 16-scissors structure, 17-first free end, 18-second free end, 19-hinge point, 20-third free end, 21-rack, 22-driven shaft, 23-blocking plate, 24-magnet, 25-second spring, 26-ball joint bearing, 27-track. DETAILED DESCRIPTION

[0044] The preferred embodiment of the present invention is described below in conjunction with the accompanying drawings. It should be understood that the automobile side skirt capable of automatically opening and closing described herein is a preferred embodiment, which is only used to illustrate and explain the present invention and does not constitute a limitation of the present invention.

[0045] Example 1 A car side skirt capable of opening and closing automatically

[0046] In this embodiment, Figure 1-Figure 5 As shown, an automobile side skirt that can be opened and closed automatically comprises a side skirt body 3 and a transmission device for opening and closing the side skirt body 3; the side skirt body 3 in this embodiment is detachably arranged on the lower side beam 1 of the automobile, the side skirt body 3 can be opened and closed, and folded and stored, the transmission device is arranged between the vehicle body and the vehicle door, and when a person manually opens the vehicle door, the transmission device drives the side skirt body 3 to open and close. When the vehicle door is opened, the side skirt body 3 is opened driven by the transmission device, and when the vehicle door is closed, the side skirt body 3 is closed driven by the transmission device and folded together.

[0047] The side skirt body 3 includes a fixing plate 31, a mudguard 33 and a dust shielding box 34. The fixing plate 31 is connected to the lower side beam 1 of the automobile. The fixing plate 31 is provided with an arc that fits the lower side beam 1 of the automobile, and can be closely attached to the lower side beam 1 of the automobile, so as to play a role in strengthening the lower side beam 1. The mudguard 33 is rotatably connected to the fixing plate 31 through a rotating shaft 32, that is, the rotating shaft 32 is rotatably connected to the fixing plate 31, and the mudguard 33 is fixed on the rotating shaft 32. The rotation of the rotating shaft 32 drives the mudguard 33 to rotate around the fixing plate 31. The dust shielding box 34 is rotatably connected to the mudguard 33, that is, one side of the mudguard 33 is fixed on the rotating shaft 32, and the other end is rotatably connected with the dust shielding box 34. The two ends of the mudguard 33 and the dust shielding box 34 are connected by a top and bottom hinge or a chicken leg hinge in the prior art, so that the mudguard 33 and the dust shielding box 34 can be rotatably connected. The dust shield box 34 has five surfaces, forming a groove with an opening, and the side with the opening faces the fixed plate 31. The side of the dust shield box 34 facing the fixed plate 31 is a slope, which can make foreign objects slide down automatically and will not hide dirt. A seal is fixedly provided on the lower beam 1 of the automobile. The seal has a circle, and its position is the same as the position where the side wall of the dust shield box 34 is buckled on the lower beam 1. After the dust shield box 34 is opened or closed, a seal is provided at the position in contact with the lower beam 1 of the automobile to prevent the dust shield box 34 from colliding with the lower beam 1. The seal is made of a softer material such as rubber or sponge, which can not only play a sealing role, but also a buffering and shock absorbing role. Figure 1 As shown, when the mudguard 33 rotates upward along with the rotating shaft 32, the mudguard 33 is fitted with the fixed plate 31, and the dust shield box 34 is buckled on the fixed plate 31, so that the mudguard 33 is stored in the dust shield box 34, and the mudguard 33 is not exposed to the outside, thereby preventing dirt and other impurities from adhering to the mudguard 33; when the mudguard 33 rotates downward along with the rotating shaft 32, the mudguard 33 is separated from the fixed plate 31 by a certain angle, so that even if the trouser legs of the driver and the passenger fall on the mudguard 33, the mudguard 33 is clean and will not dirty the trouser legs of the driver and the passenger, or will not get the trouser legs of the driver and the passenger wet on rainy days.

[0048] In order to ensure that the dust box 34 does not swing arbitrarily when the mudguard 33 is separated from the fixed plate 31, a linkage device 35 for supporting the dust box 34 is rotatably connected to the fixed plate 31, and the linkage device 35 includes a first connecting plate 351 rotatably connected to the fixed plate 31 and a second connecting plate 352 rotatably connected to the fixed plate 31, the first connecting plate 351 and the second connecting plate 352 are rotatably connected to the fixed plate 31 through a driven shaft 22, that is, the driven shaft 22 is rotatably connected to the fixed plate 31, the first connecting plate 351 and the second connecting plate 352 are fixed on the driven shaft 22, and the rotating shaft 32 is arranged parallel to the driven shaft 22. The end of the first connecting plate 351 not connected to the driven shaft 22 passes through the dust shielding box 34 and is movably connected to the dust shielding box 34, that is, a long hole is provided on the surface of the dust shielding box 34 connected to the mud guard 33, for the first connecting plate 351 to pass through. When the mud guard 33 is opened, the dust shielding box 34 rotates downward, and the first connecting plate 351 extends out of the dust shielding box 34 to extend the mud guard 33. When the mud guard 33 is closed and stored in the dust shielding box 34, the first connecting plate 351 can also be buckled on the dust shielding box 34. The end of the second connecting plate 352 not connected to the driven shaft 22 is rotatably connected to the inner wall of the dust shielding box 34. In this embodiment, a shaft is provided on the inner wall of the dust shielding box 34, and the side wall of the dust shielding box 34 is rotatably connected to the shaft, so that when the dust shielding box 34 rotates with the mud guard 33, it can maintain a certain angle and will not shake. The second connecting plate 352 and the fixed plate 31 are provided with magnets 24 at corresponding positions. The magnets 24 on the second connecting plate 352 are provided at the lower part of the second connecting plate 352, and the magnets 24 on the fixed plate 31 are provided at the right side of the fixed plate 31. When the mud guard 33 rotates downward and the angle between the second connecting plate 352 and the fixed plate 31 is small, the two attract each other by magnetic attraction, which can ensure that the mud guard 33 is kept more stable when it is opened. When the dust shielding box 34 is buckled with the fixed plate 31, the first connecting plate 351 and the second connecting plate 352 are stored in the dust shielding box 34 along with the mud guard 33. When the dust shielding box 34 is separated from the fixed plate 31, an inclined surface is formed between the mud guard 33 and the fixed plate 31. Under the action of the first connecting plate 351 and the second connecting plate 352, the dust shielding box 34 maintains a certain angle with the mud guard 33. The mudguard 33 moves under the drive of the rotating shaft 32 to close or separate from the fixing plate 31 , and the dust shielding box 34 , the first connecting plate 351 , and the second connecting plate 352 move in a connecting rod manner under the drive of the mudguard 33 .

[0049] The transmission device of this embodiment is suitable for a car whose door is connected to the car body through the door shaft 2. The transmission device includes a first transmission shaft 4, a second transmission shaft 8, a third transmission shaft 10 and a fourth transmission shaft 13 which are rotatably connected to the car body, forming a four-stage transmission. The multi-stage transmission can reduce the rigidity of the transmission process, which can not only provide a buffer when the fender 33 rotates, but also prevent the shaft 32 from breaking. Figure 2As shown, the vehicle body is fixed with a plurality of bearing seats 15 in sequence from top to bottom, and the first transmission shaft 4, the second transmission shaft 8, the third transmission shaft 10 and the fourth transmission shaft 13 are rotatably connected to the corresponding bearing seats 15 through bearings to achieve mutual rotation.

[0050] The outer wall of the door shaft 2 used to connect the door and the body of the vehicle is provided with external teeth, and the outer wall of the door shaft 2 is provided with teeth all around. One end of the first transmission shaft 4 is also provided with external teeth that match the external teeth on the door shaft 2. When the door is opened or closed, the door shaft 2 rotates, driving the first transmission shaft 4 to rotate. A first turntable 5 is fixedly provided at the other end of the first transmission shaft 4, and lower teeth are provided on the end face of the first turntable 5. One end of the second transmission shaft 8 is sleeved with a second turntable 9 through an overload protection device, and upper teeth that match the lower teeth are provided on the end face of the second turntable 9. Figure 3 and Figure 4 As shown, the overload protection device includes a baffle 23 provided at the end of the second transmission shaft 8, a through slot provided on the inner wall of the second rotating disk 9, and a convex block provided on the outer wall of the second transmission shaft 8 and matched with the through slot. The through slot and the convex block cooperate to limit the circumferential rotation. Therefore, the rotation of the first transmission shaft 4 drives the second transmission shaft 8 to rotate. In order to prevent the second rotating disk 9 from moving downward, the overload protection device also includes a spring 7 sleeved on the second transmission shaft 8 and a nut 6 threadedly connected to the second transmission shaft 8. The nut 6 is provided with two, one end of the spring 7 abuts on the second rotating disk 9, and the other end abuts on the nut 6. The spring 7 can play the role of overload protection. When the nut 6 is screwed upward, the spring 7 is compressed, so that the spring 7 presses the second rotating disk 9, ensuring that the first rotating disk 5 and the second rotating disk 9 are closely meshed.

[0051] The other end of the second transmission shaft 8 is detachably connected to the third transmission shaft 10 through a connecting device 11. The connecting device 11 includes a sleeve 111 and a sleeve ejector pin 112. The second transmission shaft 8 and the third transmission shaft 10 are provided with external threads, and the inner wall of the sleeve 111 is provided with internal threads that match the external threads. The second transmission shaft 8 and the third transmission shaft 10 are both inserted into the sleeve 111. The connection and disassembly of the second transmission shaft 8 and the third transmission shaft 10 are achieved by rotating the position of the sleeve 111. The outer wall of the sleeve 111 has an internal threaded hole, and the ejector pin 112 is provided with external threads. The ejector pin 112 is screwed to the outer wall of the sleeve 111, one end of which is against the second transmission shaft 8 or the third transmission shaft 10, and the other end is exposed outside the sleeve 111, which can further lock the sleeve 111 with the second transmission shaft 8 or the third transmission shaft 10.

[0052] The third transmission shaft 10 is fixedly connected to the fourth transmission shaft 13 through a connecting piece, and the connecting piece is a universal joint 12. The two are connected through the universal joint 12, which reduces the centering work during installation, reduces the coaxiality requirements, increases the flexibility of the connection, and enables the fender 33 to have a buffering effect when moving.

[0053] The fourth transmission shaft 13 drives the rotating shaft 32 to rotate through the reversing gear set, and the reversing gear set can change the direction of transmission. From the perspective of placing the device on the main driver's seat, when the rotating shaft 32 and the fourth transmission shaft 13 are meshed, the gear reversing set includes a toothed disc 14 fixed on the fourth transmission shaft 13 and teeth arranged on the end face of the rotating shaft 32. The toothed disc 14 is meshed with the teeth on the rotating shaft 32 to drive the fender 33 to rotate and separate or close with the fixed plate 31. The teeth on the rotating shaft 32 that mesh with the toothed disc 14 are provided with half. The gear reversing set can also be a bevel gear set, one bevel gear is fixed on the fourth transmission shaft 13, and the other bevel gear is fixed on the rotating shaft 32, and the teeth of the bevel gear fixed on the rotating shaft 32 are provided with half.

[0054] The method of using this embodiment is as follows: when the driver needs to get off the vehicle and open the door, the door shaft 2 connected to the vehicle body rotates, the door shaft 2 meshes with the teeth of the first transmission shaft 4, driving the first transmission shaft 4 to rotate, the lower teeth on the first rotating disk 5 on the first transmission shaft 4 mesh with the upper teeth of the second rotating disk 9 on the second transmission shaft 8, driving the second transmission shaft 8 to rotate, the second transmission shaft 8 and the third transmission shaft 10 are connected through the sleeve 111 to form a whole and rotate at the same time, the third transmission shaft 10 and the fourth transmission shaft 13 are linked through the universal joint 12, and the fourth transmission shaft 13 drives the rotating shaft 32 to move under the action of the reversing gear set, so that the fender 33 is separated from the fixed plate 31 by a certain angle. When the driver gets off the vehicle, even if the trouser legs rub against the fender 33, the fender 33 is kept in the dust cover box 34 and is relatively clean, and the trouser legs will not be dirty. When the vehicle door is closed, the first transmission shaft 4, the second transmission shaft 8, the third transmission shaft 10 and the fourth transmission shaft 13 drive the rotating shaft 32 to rotate in the opposite direction, so that when the vehicle door is closed, the dust shielding box 34 is buckled on the fixing plate 31.

[0055] Example 2 A car side skirt capable of opening and closing automatically

[0056] like Figure 6-Figure 8 As shown, the structure of this embodiment is basically the same as that of embodiment 1, and the difference lies in the transmission device. The transmission device of this embodiment is suitable for a car whose door and body are connected by hinges.

[0057] The transmission device comprises a scissor-fork structure 16, the upper end of the scissor-fork structure 16 is a first free end 17 and a second free end 18, the first free end 17 is fixed on the vehicle body, and the second free end 18 is detachably mounted on the vehicle door through a buckle. The vehicle body and the vehicle door are both provided with a plug hole, and the buckle is made of elastic material, such as Figure 8 As shown, one end is closed to form a pointed end, which can be inserted into the socket, and the other end is two free ends. After pinching the two free ends with hands, it is inserted into the socket. After the hands are released, the two free ends open outward and press against the inner wall of the socket to achieve the fixing effect. When taking out the buckle, pinch the two free ends with hands to reduce the distance between the two free ends for easy removal. Its structure is the same as the fixed card structure on the socks in the prior art. When fixing the two free ends 17 of the scissor structure 16, pass the buckle through the second free end 18 of the scissor structure 16 and insert it into the socket. When the side skirt body 3 is not needed, remove the buckle that fixes the second free end 18 to the car door, and fix the second free end 18 to the car body. The scissor structure 16 is a double-layer structure that can ensure the stability of movement.

[0058] The other end of the scissor structure 16 is extended at the hinge point 19 to form a third free end 20. The third free end 20 is connected to a rack 21 through a ball joint bearing 26. Both ends of the ball joint bearing 26 are rod-shaped. Therefore, a second spring 25 is sleeved on the rod connected to one end of the rack 21. One end of the second spring 25 is against the rack 21, and the other end is against the ball head. The second spring 25 can play the role of overload protection to prevent the rack 21 from being damaged when the door is opened or closed too quickly. The circumference of the rotating shaft 32 is provided with teeth that match the rack 21. The teeth on the rack 21 and the rotating shaft 32 are meshed to drive the fender 33 to rotate. In order to ensure the stability of the movement of the rack 21, a track 27 that enables the rack 21 to move up and down along the vehicle body is provided on the vehicle body. The track 27 adopts any one of the existing technologies, which can be a slide rail and slider type, or a groove and protrusion type.

[0059] The method of using this embodiment is as follows: when the driver needs to get off the vehicle and opens the door, the first free end 17 and the second free end 18 of the scissor structure 16 are opened, so that the third free end 20 of the scissor mechanism moves upward, driving the rack 21 to move upward, the rack 21 engages with the teeth on the rotating shaft 32, so that the fender 33 is separated from the fixed plate 31 by a certain angle. When closing the door, the first free end 17 and the second free end 18 of the scissor structure 16 are closed, the third free end 20 moves downward, driving the rack 21 to move downward, the rack 21 engages with the teeth on the rotating shaft 32, so that the fender 33 is attached to the fixed plate 31, and at the same time, the dust shield box 34 is buckled on the fixed plate 31.

[0060] Example 3 A high-end welcoming car

[0061] The present embodiment is a high-end welcoming car, comprising a car body, car doors rotatably connected to the car body, and car side skirts fixedly mounted on the lower side beam 1 of the car body, wherein the car side skirts adopt any one of Embodiment 1 or Embodiment 2, and the car body, car doors and the lower side beam 1 on the car body adopt any one of the prior art.

Claims

1. An automobile side skirt capable of opening and closing automatically, characterized in that: It comprises a side skirt body and a transmission device for opening and closing the side skirt body; the side skirt body comprises a fixing plate connected to the lower side beam of the automobile, a fender rotatably connected to the fixing plate through a rotating shaft, and a dust shield box rotatably connected to the fender, and both ends of the fender and the dust shield box are connected through a top and bottom hinge or a chicken leg hinge; The fixed plate is rotatably connected with a linkage device for supporting the dust shield box, the linkage device includes a first connecting plate rotatably connected to the fixed plate and a second connecting plate rotatably connected to the fixed plate, the side of the first connecting plate not connected to the fixed plate passes through the dust shield box and is movably connected to the dust shield box, and the side of the second connecting plate not connected to the fixed plate is rotatably connected to the inner wall of the dust shield box, so as to prevent the dust shield box from shaking when it is opened; the transmission device drives the rotating shaft to rotate; The transmission device includes a first transmission shaft, a second transmission shaft, a third transmission shaft and a fourth transmission shaft rotatably connected to the vehicle body; One end of the first transmission shaft is meshed with the door shaft through teeth, and the other end is fixed with a first rotating disk, and the end surface of the first rotating disk is provided with lower teeth; one end of the second transmission shaft is sleeved with a second rotating disk through an overload protection device, and the end surface of the second rotating disk is provided with upper teeth matching with the lower teeth, and the other end is detachably connected to the third transmission shaft through a connecting device; The third transmission shaft is fixedly connected to the fourth transmission shaft through a connecting piece; the fourth transmission shaft drives the rotating shaft to rotate through a reversing gear set; The overload protection device includes a baffle fixedly arranged on the end of the second transmission shaft, a through groove arranged on the inner wall of the second turntable, and a protrusion arranged on the outer wall of the second transmission shaft and cooperating with the through groove, and the through groove and the protrusion cooperate to limit circumferential rotation; it also includes a spring sleeved on the second transmission shaft and a nut threadedly connected to the second transmission shaft, and the nut is provided with two, one end of the spring is against the second turntable, and the other end is against the nut.

2. The automatically opening and closing automobile side skirt according to claim 1, characterized in that: The side of the dust shielding box facing the fixing plate is a slope.

3. The automatically opening and closing automobile side skirt according to claim 1 or 2, characterized in that: A sealing member is fixedly arranged on the lower side beam of the automobile, and the position of the sealing member is the same as the position where the side wall of the dust shielding box is buckled on the lower side beam.

4. The automatically opening and closing automobile side skirt according to claim 3, characterized in that: The connecting device includes a sleeve and a ejector pin. The second transmission shaft and the third transmission shaft are both provided with external threads. The inner wall of the sleeve is provided with an internal thread that matches the external thread. The ejector pin is threadedly connected to the outer wall of the sleeve and abuts against the second transmission shaft or the third transmission shaft.

5. The automatically opening and closing automobile side skirt according to claim 4, characterized in that: The reversing gear set includes a toothed disc fixed on the fourth transmission shaft and teeth arranged on the end surface of the rotating shaft, the teeth on the toothed disc are arranged around the circumference of the toothed disc, and the toothed disc meshes with the teeth on the rotating shaft to drive the fender to rotate; The connecting piece is a universal joint.

6. A high-end welcoming car, characterized by: The vehicle side skirt comprises a vehicle body, a vehicle door rotatably connected to the vehicle body, and a vehicle side skirt as claimed in any one of claims 1 to 5 fixedly arranged on the lower side beam of the vehicle body.

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