Movable cover plate device

Abstract

The utility model relates to a movable cover plate device which is applied to the field of automobile application and comprises an upper cover plate and a lower cover plate which are arranged on an instrument desk, an upper device used for driving the upper cover plate to be opened and closed and a lower device used for driving the lower cover plate to be opened and closed are arranged on the instrument desk, and the upper device comprises an upper support arranged in the instrument desk; two supporting plates are oppositely arranged on the upper support, sliding grooves are oppositely formed in the two supporting plates, the upper cover plate is located between the two sliding grooves and connected into the two sliding grooves in a sliding mode, and a first driving unit used for driving the upper cover plate to move in a reciprocating mode along the sliding grooves is arranged on the upper support. The movable cover plate device has the technical effects that single-side opening and closing are achieved through independent control of the upper device and the lower device, flexibility is high, meanwhile, the application range of the movable cover plate device is widened, mechanism hiding can be conducted through the upper cover plate and the lower cover plate which can move on the single side, the attractiveness degree of a cabin is improved, and the practicability is high. And the storage space in the vehicle is increased.

Description

Technical Field

[0001] The present application relates to the field of automobile application technology, and in particular to a movable cover device. Background Art

[0002] The space inside the cockpit is limited, and some seldom-used components on the instrument panel occupy a certain amount of cockpit space.

[0003] Announcement No. CN215590636U discloses a vehicle-mounted central control with an automatic driving reminder function for a smart car, including a central console, a mounting groove is opened in the middle position of one side of the central console, and a display screen is slidably provided in the mounting groove, the interior of the central console is a hollow structure, and a pushing and lifting mechanism is provided in the central console, and a first cover plate is slidably provided on the upper part of both vertical sides of the mounting groove, and the two first cover plates are relatively far away from one end and pass through the inner wall of one side of the mounting groove, and the first cover plate is located at one end of the interior of the central console and a second cover plate is slidably inserted.

[0004] When the above-mentioned vehicle-mounted central control is in use, since the first cover plate and the second cover plate are connected as a whole and opened and closed simultaneously, it is difficult to realize single-sided opening and closing, resulting in poor flexibility and a small scope of application. Summary of the invention

[0005] In order to help solve the problem that the above-mentioned vehicle-mounted central control is difficult to open and close on one side, a movable cover device is provided in the present application, which adopts the following technical solution: it includes an upper cover and a lower cover arranged on the instrument panel, and the instrument panel is respectively provided with an upper device for driving the upper cover to open and close and a lower device for driving the lower cover to open and close, the upper device includes an upper bracket arranged in the instrument panel, two support plates are relatively provided on the upper bracket, and slide grooves are relatively opened on the two support plates, the upper cover is located between the two slide grooves and is slidably connected in the two slide grooves, and the upper bracket is provided with a first drive unit for driving the upper cover to move back and forth along the slide groove.

[0006] Through the above technical scheme, when the mechanisms in the instrument panel, such as the vehicle-mounted robot, the electronic screen, etc., are located inside the instrument panel, the upper cover and the lower cover are respectively fitted with the surface of the instrument panel; when the mechanisms in the instrument panel, such as the vehicle-mounted robot, the electronic screen, etc., need to be extended out of the instrument panel, the first drive unit is started, driving the upper cover to slide along the slide groove to retract the upper cover into the instrument panel, the lower device is started to retract the lower cover into the instrument panel, and then the mechanism in the instrument panel is extended from the inside of the instrument panel. After the extension of the mechanism is completed, the first drive unit is started, driving the upper cover to slide along the slide groove to extend the upper cover to the surface of the instrument panel and fit it with the instrument panel, thereby reducing the possibility of dust and the like entering the instrument panel through the corresponding position of the instrument panel and the upper cover, and realizing single-sided opening and closing by separately controlling the upper device and the lower device, which has strong flexibility and improves the scope of application of the movable cover device.

[0007] In a specific implementation scheme, the first driving unit includes a screw rod rotatably connected to an upper bracket, the upper bracket is provided with a first driving motor for driving the screw rod to rotate, and a nut of the screw rod is connected to the upper cover plate through a connecting assembly.

[0008] Through the above technical solution, the first drive motor is started to drive the screw to rotate, drive the nut of the screw to move, and thus drive the upper cover to move back and forth along the slide groove to realize the opening and closing of the upper cover. The screw can effectively convert rotational motion into linear motion, and the transmission efficiency is high.

[0009] In a specific feasible implementation scheme, a support shaft is connected between the two support plates, a mounting seat is sleeved on the support shaft and rotatably connected, the first drive motor is arranged on the mounting seat, the output end of the first drive motor is coaxially fixedly connected with the first worm, the end of the lead screw facing away from the upper cover plate is fixedly sleeved with a first worm wheel matching the first worm, the lead screw is rotatably connected to the mounting seat, and the first worm wheel is meshingly connected to the first worm.

[0010] Through the above technical solution, the first drive motor is started to drive the first worm to rotate, and the first worm drives the first worm wheel to rotate, thereby driving the lead screw to rotate. The meshing area of ​​the first worm wheel and the first worm is large and the load-bearing capacity is strong. The structure is more solid and stable, has a strong load-bearing capacity, and has high transmission efficiency.

[0011] In a specific possible implementation scheme, the connecting assembly includes a connecting seat arranged on the nut of the screw rod, a connecting shaft is provided on the upper cover plate, a connecting hole matching the connecting shaft is opened on the connecting seat, and the connecting shaft passes through the connecting hole.

[0012] Through the above technical solution, the upper cover is connected to the connecting seat through the connecting shaft passing through the connecting hole. When the nut of the screw rod moves, the connecting seat is driven to move, thereby driving the upper cover to move, thereby improving the stability of the upper cover when moving.

[0013] In a specific possible implementation scheme, a reinforcement block is provided on the surface of the upper cover plate facing the connecting shaft, a mounting hole matching the connecting shaft is opened on the reinforcement block, and the connecting shaft passes through the mounting hole.

[0014] Through the above technical solution, the reinforcing block enhances the strength of the upper cover plate while enhancing the stability of the connection between the upper cover plate and the connecting shaft.

[0015] In a specific possible implementation scheme, a mounting bolt is passed through the reinforcing block, a thread groove matching the mounting bolt is opened on the connecting shaft, and the mounting bolt is threadedly connected in the thread groove.

[0016] Through the above technical solution, the stability of the connection between the reinforcement block and the connecting shaft is further enhanced by bolt connection, reducing the possibility of shaking when the upper cover plate moves.

[0017] In a specific possible implementation manner, the upper cover plate is rotatably connected with a first roller and a second roller matching the slide grooves, respectively, and the first roller and the second roller are located in two slide grooves respectively.

[0018] Through the above technical solution, the design of the first roller and the second roller can significantly reduce the friction between the upper cover plate and the slide groove. Compared with the sliding friction, the rolling friction is usually much smaller, which enables the upper cover plate to move along the slide groove more easily, and the wear of the upper cover plate and the slide groove will also be reduced accordingly, thereby extending the service life.

[0019] In a specific feasible implementation scheme, the lower device includes a basic frame arranged in the instrument panel, and a left lower bracket and a right lower bracket are respectively provided on the basic frame relative to each other, and the lower cover plate is arranged between the left lower bracket and the right lower bracket, and a left connecting plate is rotatably connected to the left lower bracket, and one end of the left connecting plate facing the lower cover plate is hinged to the lower cover plate, and a right connecting plate is rotatably connected to the right lower bracket, and one end of the right connecting plate facing the lower cover plate is hinged to the lower cover plate, and a second driving unit for driving the right connecting plate to rotate is provided on the right lower bracket.

[0020] Through the above technical solution, the second driving unit is started to drive the right connecting plate to rotate. Since the right connecting plate is hinged with the lower cover plate, the lower cover plate is driven to move to realize the opening and closing of the lower cover plate.

[0021] In a specific possible implementation scheme, the lower cover plate is hinged to the right connecting plate through a transition plate, the end of the transition plate away from the right connecting plate is hinged to a right rotating plate, and the end of the right rotating plate away from the transition plate is hinged to the right lower bracket.

[0022] Through the above technical solution, the transition plate is hinged to the right connecting plate and the right rotating plate respectively, so that the lower cover plate can move in a wider angle range and with greater flexibility.

[0023] In a specific possible implementation scheme, the second drive unit includes a second drive motor arranged on the right lower bracket, the output end of the second drive motor is coaxially fixedly connected with a second worm, the right connecting plate is provided with a second worm wheel matching the second worm, and the second worm is meshingly connected with the second worm wheel.

[0024] Through the above technical solution, the second motor is started to drive the second worm to rotate, and the second worm drives the second worm wheel to rotate, thereby driving the right connecting plate to rotate. The second worm wheel and the second worm have a large meshing area and a strong load-bearing capacity. The structure is more solid and stable, has a strong load-bearing capacity, and has high transmission efficiency.

[0025] In summary, the present application has the following beneficial technical effects: when the mechanisms in the dashboard, such as the on-board robot, the electronic screen, etc., are located inside the dashboard, the upper cover and the lower cover are respectively fitted with the surface of the dashboard; when the mechanisms in the dashboard, such as the on-board robot, the electronic screen, etc., need to be extended out of the dashboard, the first drive unit is started, driving the upper cover to slide along the slide groove to retract the upper cover into the dashboard, the lower device is started to retract the lower cover into the dashboard, and then the mechanism in the dashboard is extended from the inside of the dashboard. After the extension of the mechanism is completed, the first drive unit is started, driving the upper cover to slide along the slide groove to extend the upper cover to the surface of the dashboard and fit it with the dashboard, reducing the possibility of dust and the like entering the dashboard through the position on the dashboard corresponding to the upper cover, and using the upper device and the lower device to separately control one-sided opening and closing, which has strong flexibility and improves the scope of application of the movable cover device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0027] Figure 2 It is a schematic diagram of the upper device structure of an embodiment of the present application.

[0028] Figure 3 It is a schematic diagram of the lower device structure of an embodiment of the present application.

[0029] Figure 4 It is a schematic diagram of the structure of the second worm gear used in an embodiment of the present application.

[0030] Figure 5 It is a schematic diagram of the use of an embodiment of the present application.

[0031] 1. The first drive unit; 2. The second drive motor; 3. The second worm; 4. The second worm gear; 5. The second roller; 6. The second roller; 7. The second roller; 8. The second roller; 9. The second worm; 10. The second worm gear; 11. The second worm gear; 12. The second roller; 13. The second worm; 14. The second worm gear; 15. The second roller; 16. The second roller; 17. The second roller; 18. The second roller; 19. The second roller; 20. The second roller; 21. The second roller; 22. The second worm; 23. The second worm gear; 24. The second worm; 25. The second roller; 26. The second roller; 27. The second worm; 28. The second worm gear; 29. ​​The second drive motor; 30. The second worm; 31. The second worm gear; 32. The second guide rod; 33. The bearing; 34. The instrument panel. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-5 This application is described in further detail.

[0033] The embodiment of the present application discloses a movable cover device.

[0034] Reference Figure 1 The movable cover device includes an upper cover 1 and a lower cover 2 arranged on the instrument panel 34. The upper cover 1 and the lower cover 2 in the embodiment of the present application are made in the shape of the surface of the instrument panel 34. The instrument panel 34 is respectively provided with an upper device 3 for driving the upper cover 1 to open and close and a lower device 4 for driving the lower cover 2 to open and close. The upper device 3 includes an upper bracket 5 arranged in the instrument panel 34. Two support plates 6 are relatively arranged on the upper bracket 5. Slide grooves 7 are relatively opened on the two support plates 6. The shape of the slide groove 7 can be adjusted to a straight line or an arc according to the actual situation of the instrument panel 34. The upper cover 1 is located between the two slide grooves 7 and is slidably connected in the two slide grooves 7. The upper cover 1 is rotatably connected with a first roller 20 and a second roller matching the slide groove 7. The first roller 20 and the second roller are respectively located in the two slide grooves 7. The size of the first roller 20 and the second roller is slightly smaller than the size of the slide groove 7. The upper bracket 5 is provided with a first driving unit 8 for driving the upper cover 1 to reciprocate along the slide groove 7. The design of the first roller 20 and the second roller can significantly reduce the friction between the upper cover plate 1 and the slide groove 7. Compared with the sliding friction, the rolling friction is usually much smaller, which enables the upper cover plate 1 to move along the slide groove 7 more easily. The wear of the upper cover plate 1 and the slide groove 7 will also be reduced accordingly, thereby extending the service life.

[0035] Reference Figure 1 and Figure 2 The first drive unit 8 includes a screw rod 9 rotatably connected to the upper bracket 5, and a first drive motor 10 for driving the screw rod 9 to rotate is installed on the upper bracket 5. The nut of the screw rod 9 is connected to the upper cover 1 through a connecting assembly, and the connecting assembly includes a connecting seat 15 arranged on the nut of the screw rod 9. The operator can set the nut of the screw rod 9 and the connecting seat 15 as an integral component according to actual conditions, or split them into two separate parts and connect them. The upper cover 1 is connected with a connecting shaft 16, and a connecting hole matching the size of the connecting shaft 16 is opened on the connecting seat 15. The connecting shaft 16 passes through the connecting hole. When the shape of the slide 7 is adjusted to an arc according to the actual situation of the instrument panel 34, the connecting shaft 16 and the connecting seat 15 are a rotating pair, and the connecting seat 15 and the connecting shaft 16 can rotate relative to each other, so as to adapt to the motion trajectory requirements of different instrument panels. Therefore, the upper cover 1 is connected to the connecting seat 15 through the connecting hole through which the connecting shaft 16 passes. When the nut of the screw rod 9 moves, the connecting seat 15 is driven to move, thereby driving the upper cover 1 to move, thereby improving the stability of the upper cover 1 when moving.

[0036] Reference Figure 1 and Figure 2Two reinforcing blocks 17 are fixedly connected to the surface of the upper cover plate 1 facing the connecting shaft 16. Both reinforcing blocks 17 are provided with mounting holes 18 matching the size of the connecting shaft 16. The connecting shaft 16 passes through the two mounting holes 18 in sequence. Mounting bolts are passed through the reinforcing blocks 17. The connecting shaft 16 is provided with thread grooves 19 matching the size of the mounting bolts. The mounting bolts are threadedly connected in the thread grooves 19. The reinforcing blocks 17 enhance the strength of the upper cover plate 1 and the stability of the connection between the upper cover plate 1 and the connecting shaft 16. The bolt connection further enhances the stability of the connection between the reinforcing blocks 17 and the connecting shaft 16, reducing the possibility of shaking when the upper cover plate 1 moves.

[0037] Reference Figure 1 and Figure 2 , a support shaft 11 is connected between the two support plates 6, and a mounting seat 12 is sleeved and rotatably connected on the support shaft 11. When the shape of the slide slot 7 is adjusted to an arc shape according to the actual situation of the instrument panel 34, a rotating pair is formed between the support shaft 11 and the mounting seat 12, and the support shaft 11 and the mounting seat 12 can rotate relative to each other, so as to adapt to the motion trajectory requirements of different instrument panels. The first drive motor 10 is arranged on the mounting seat 12, and the output end of the first drive motor 10 is coaxially fixedly connected with a first worm 13, and the end of the screw 9 away from the upper cover plate 1 is fixedly sleeved with a first worm wheel 14 matching the first worm 13, the screw 9 is rotatably connected with the mounting seat 12, and the first worm wheel 14 is meshed with the first worm 13. Therefore, starting the first drive motor 10 drives the first worm 13 to rotate, and the first worm 13 drives the first worm wheel 14 to rotate, thereby driving the screw 9 to rotate, the meshing area of ​​the first worm wheel 14 and the first worm 13 is large, the bearing capacity is strong, and its structure is more solid and stable, with strong bearing capacity and high transmission efficiency. In the embodiment of the present application, a guide rod 32 parallel to the screw rod 9 can be set according to actual conditions. The guide rod 32 passes through the connecting seat 15. A bearing 33 can be set on the connecting seat 15. The guide rod 32 contacts the inner edge of the bearing 33. The end of the guide rod 32 facing away from the connecting seat 15 is set on the mounting seat 12. The guide rod 32 can improve the stability of the connecting seat 15 when it moves.

[0038] The driving principle of the upper device 3 in the embodiment of the present application is: starting the first driving motor 10 drives the first worm 13 to rotate, the first worm 13 drives the first worm wheel 14 to rotate, thereby driving the screw 9 to rotate, driving the nut of the screw 9 to move, thereby driving the upper cover plate 1 to reciprocate along the slide groove 7 to realize the opening and closing of the upper cover plate 1.

[0039] Reference Figure 1 and Figure 3The lower device 4 includes a base frame 21 disposed in the instrument panel 34, a left lower bracket 22 and a right lower bracket 23 are bolted to the base frame 21, respectively, the lower cover 2 is disposed between the left lower bracket 22 and the right lower bracket 23, a left connecting plate 24 is rotatably connected to the left lower bracket 22, and one end of the left connecting plate 24 facing the lower cover 2 is hinged to the lower cover 2, a right connecting plate 25 is rotatably connected to the right lower bracket 23, one end of the right connecting plate 25 facing the lower cover 2 is hinged to the lower cover 2 through a transition plate 27, a right rotating plate 28 is hinged to the end of the transition plate 27 facing away from the right connecting plate 25, and one end of the right rotating plate 28 facing away from the transition plate 27 is hinged to the right lower bracket 23, and a second driving unit 26 for driving the right connecting plate 25 to rotate is disposed on the right lower bracket 23. By respectively hingedly connecting the transition plate 27 with the right connecting plate 25 and the right rotating plate 28, the lower cover 2 can move in a wider angle range and with greater flexibility.

[0040] Reference Figure 1 and Figure 4 The second drive unit 26 includes a second drive motor 29 disposed on the right lower bracket 23, the output end of the second drive motor 29 is coaxially fixedly connected with a second worm 30, and the right connecting plate 25 is provided with a second worm wheel 31 matching the second worm 30, and the second worm 30 is meshedly connected with the second worm wheel 31. Therefore, starting the second motor drives the second worm 30 to rotate, and the second worm 30 drives the second worm wheel 31 to rotate, thereby driving the right connecting plate 25 to rotate, and the second worm wheel 31 and the second worm 30 have a large meshing area, a strong load-bearing capacity, and a more solid and stable structure, with a strong load-bearing capacity and high transmission efficiency.

[0041] The driving principle of the lower device 4 in the embodiment of the present application is as follows: when it is necessary to extend the lower cover 2 to the position where it fits on the surface of the instrument panel 34, the second motor is started to drive the second worm 30 to rotate, and the second worm 30 drives the second worm wheel 31 to rotate, thereby driving the right connecting plate 25 to rotate to provide an oblique upward thrust for the lower cover 2, and under the restriction of the left connecting plate 24, the lower cover 2 is extended toward the opening of the instrument panel 34; when it is necessary to retract the lower cover 2 from the position where it fits on the surface of the instrument panel 34 to the inside of the instrument panel 34, the second motor is started to drive the second worm 30 to rotate, and the second worm 30 drives the second worm wheel 31 to rotate, thereby driving the right connecting plate 25 to rotate to provide an oblique downward pulling force for the lower cover 2, and under the restriction of the left connecting plate 24, the lower cover 2 is retracted from the opening of the instrument panel 34.

[0042] Reference Figure 5 In the embodiment of the present application, taking the electronic screen as an example, the upper device 3 and the lower device 4 can be used in combination, or they can be used separately according to the actual use of the instrument panel 34. Through the upper cover plate 1 and the lower cover plate 2 that can be moved on one side, the space of the instrument panel 34 can be used to hide the mechanism, improve the beauty of the cabin, and increase the storage space in the car.

[0043] The implementation principle of the embodiment of the present application is as follows: when the mechanism such as the vehicle-mounted robot, the electronic screen, etc. in the instrument panel 34 is located inside the instrument panel 34, the upper cover plate 1 and the lower cover plate 2 are respectively fitted with the surface of the instrument panel 34; when the mechanism such as the vehicle-mounted robot, the electronic screen, etc. in the instrument panel 34 needs to be extended out of the instrument panel 34, the first drive motor 10 is started to drive the first worm 13 to rotate, the first worm 13 drives the first worm wheel 14 to rotate, thereby driving the screw 9 to rotate, driving the nut of the screw 9 to move, thereby driving the upper cover plate 1 to move along the slide groove 7 to achieve the retraction of the upper cover plate 1, starting the second motor to drive the second worm 30 to rotate, the second worm 30 drives the second worm wheel 31 to rotate, thereby driving the right connecting plate 25 to rotate to provide a downward oblique pulling force for the lower cover plate 2, thereby driving the lower cover plate 2 to move to achieve the retraction of the lower cover plate 2, and then the mechanism in the instrument panel 34 is extended from the inside of the instrument panel 34.

[0044] When the upper cover 1 needs to be closed after the extension action of the mechanism is completed, the first drive motor 10 is started to drive the first worm 13 to rotate, and the first worm 13 drives the first worm wheel 14 to rotate, thereby driving the screw 9 to rotate, driving the nut of the screw 9 to move, thereby driving the upper cover 1 to move along the slide groove 7 to achieve the extension of the upper cover 1, and moving the upper cover 1 to the surface of the instrument panel 34 and fitting the instrument panel 34, thereby reducing the possibility of dust and the like entering the instrument panel 34 through the position on the instrument panel 34 corresponding to the upper cover 1, and using the upper device 3 and the lower device 4 to control separately to achieve unilateral opening and closing, which has strong flexibility and improves the application range of the movable cover device. Through the unilaterally movable upper cover 1 and lower cover 2, the space of the instrument panel 34 can be used to hide the mechanism, thereby improving the aesthetics of the cockpit and increasing the storage space in the car.

[0045] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A movable cover device, characterized in that: The invention comprises an upper cover plate (1) and a lower cover plate (2) arranged on an instrument panel (34); an upper device (3) for driving the upper cover plate (1) to open and close and a lower device (4) for driving the lower cover plate (2) to open and close are respectively arranged on the instrument panel (34); the upper device (3) comprises an upper bracket (5) arranged in the instrument panel (34); two supporting plates (6) are arranged oppositely on the upper bracket (5); sliding grooves (7) are arranged oppositely on the two supporting plates (6); the upper cover plate (1) is located between the two sliding grooves (7) and is slidably connected in the two sliding grooves (7); and a first driving unit (8) for driving the upper cover plate (1) to reciprocate along the sliding groove (7) is arranged on the upper bracket (5).

2. The movable cover device according to claim 1, characterized in that: The first drive unit (8) comprises a screw rod (9) rotatably connected to an upper bracket (5); a first drive motor (10) for driving the screw rod (9) to rotate is provided on the upper bracket (5); and a nut of the screw rod (9) is connected to the upper cover plate (1) via a connecting assembly.

3. The movable cover device according to claim 2, characterized in that: A support shaft (11) is connected between the two support plates (6); a mounting seat (12) is sleeved on the support shaft (11) and rotatably connected thereto; the first drive motor (10) is arranged on the mounting seat (12); the output end of the first drive motor (10) is coaxially fixedly connected to a first worm (13); one end of the lead screw (9) facing away from the upper cover plate (1) is fixedly sleeved with a first worm wheel (14) matching the first worm (13); the lead screw (9) is rotatably connected to the mounting seat (12); and the first worm wheel (14) is meshingly connected to the first worm (13).

4. The movable cover device according to claim 2, characterized in that: The connection assembly comprises a connection seat (15) arranged on a nut of a screw rod (9); a connection shaft (16) is arranged on the upper cover plate (1); a connection hole matching the connection shaft (16) is opened on the connection seat (15); and the connection shaft (16) passes through the connection hole.

5. The movable cover device according to claim 4, characterized in that: A reinforcing block (17) is provided on the surface of the upper cover plate (1) facing the connecting shaft (16), a mounting hole (18) matching the connecting shaft (16) is provided on the reinforcing block (17), and the connecting shaft (16) passes through the mounting hole (18).

6. The movable cover device according to claim 5, characterized in that: The reinforcing block (17) is provided with a mounting bolt, the connecting shaft (16) is provided with a thread groove (19) matching the mounting bolt, and the mounting bolt is threadedly connected in the thread groove (19).

7. The movable cover device according to claim 1, characterized in that: The upper cover plate (1) is rotatably connected to a first roller (20) and a second roller matching the slide groove (7), and the first roller (20) and the second roller are respectively located in the two slide grooves (7).

8. The movable cover device according to claim 1, characterized in that: The lower device (4) comprises a base frame (21) arranged in the instrument panel (34); a left lower bracket (22) and a right lower bracket (23) are respectively arranged on the base frame (21); the lower cover plate (2) is arranged between the left lower bracket (22) and the right lower bracket (23); a left connecting plate (24) is rotatably connected to the left lower bracket (22); one end of the left connecting plate (24) facing the lower cover plate (2) is hinged to the lower cover plate (2); a right connecting plate (25) is rotatably connected to the right lower bracket (23); one end of the right connecting plate (25) facing the lower cover plate (2) is hinged to the lower cover plate (2); and a second driving unit (26) for driving the right connecting plate (25) to rotate is arranged on the right lower bracket (23).

9. The movable cover device according to claim 8, characterized in that: The lower cover plate (2) is hinged to the right connecting plate (25) via a transition plate (27); one end of the transition plate (27) away from the right connecting plate (25) is hinged to a right rotating plate (28); and one end of the right rotating plate (28) away from the transition plate (27) is hinged to the right lower bracket (23).

10. The movable cover device according to claim 8, characterized in that: The second drive unit (26) comprises a second drive motor (29) arranged on the right lower bracket (23); the output end of the second drive motor (29) is coaxially fixedly connected with a second worm (30); the right connecting plate (25) is provided with a second worm wheel (31) matching the second worm (30); the second worm (30) is meshingly connected with the second worm wheel (31).

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