Actuator, door cover structure, oil filling port structure, charging port structure and vehicle

Abstract

The invention relates to an actuator, a door cover structure, an oil filling port structure, a charging port structure and a vehicle, the actuator comprises a mounting seat, a power mechanism, a first transmission mechanism, a second transmission mechanism and a synchronizing mechanism, and the first transmission mechanism, the second transmission mechanism and the synchronizing mechanism are arranged in the mounting seat; the first transmission mechanism is provided with a first power output end, and the second transmission mechanism is provided with a second power output end; the first transmission mechanism comprises a first transmission shaft; the second transmission mechanism comprises a second transmission shaft. Compared with the prior art, a cover plate rotating opening mode is not adopted any more, a cantilever does not need to be arranged, when the cover plate is opened to the maximum state, the cover plate is supported by the first transmission mechanism and the second transmission mechanism, the rotating trend does not exist, and the vertical rigidity is good.

Description

Technical Field

[0001] The present invention belongs to the technical field of hybrid vehicle accessories, and in particular relates to an actuator, a door cover structure, a fuel filler port structure, a charging port structure and a vehicle. Background Art

[0002] An existing refueling port structure or charging port structure includes a cantilever, an outer cover, a torsion spring, a port box, a rotating shaft and a push motor. The outer cover is fixed on the cantilever to form a cover assembly. Its working principle is: the electrical signal unlocks, a person manually presses the area on the outer cover corresponding to the triggering part of the push motor, and the person manually opens the cover assembly to the maximum opening state (in this process, the torsion spring provides a certain auxiliary operating force). After refueling or charging is completed, the person manually closes the cover assembly and locks it with the push motor structure.

[0003] In order to ensure the cantilever rotation space and the refueling or charging operation space, the existing refueling port structure or charging port structure has a relatively long cantilever, and the vertical stiffness of the cover assembly when it is opened to the maximum state is poor. Summary of the invention

[0004] The technical problem to be solved by the present invention is: in view of the problem that the cantilever of the existing fuel filler port structure or charging port structure is relatively long and the vertical stiffness of the cover assembly is poor when it is opened to the maximum state, an actuator, a door cover structure, a fuel filler port structure, a charging port structure and a vehicle are provided.

[0005] In order to solve the above technical problems, on the one hand, an embodiment of the present invention provides an actuator, including a mounting seat, a power mechanism, a first transmission mechanism, a second transmission mechanism and a synchronization mechanism, wherein the first transmission mechanism, the second transmission mechanism and the synchronization mechanism are arranged in the mounting seat; the first transmission mechanism has a first power output end, and the second transmission mechanism has a second power output end;

[0006] The first transmission mechanism comprises a first transmission shaft, one end of the first transmission shaft is connected to the mounting seat, and the other end of the first transmission shaft is provided with the first power output end;

[0007] The second transmission mechanism comprises a second transmission shaft, one end of the second transmission shaft is connected to the mounting seat, and the other end of the second transmission shaft is provided with the second power output end;

[0008] The power mechanism has a first output shaft and a second output shaft, and the rotation of the first output shaft drives the first transmission shaft and the second transmission shaft to move along their axial directions through the synchronization mechanism, so that the first power output end can move from a first position to a second position;

[0009] In the second position, the rotation of the second output shaft of the power mechanism can drive the second transmission shaft to rotate, thereby driving the second power output end to rotate.

[0010] Optionally, the first transmission shaft includes a fixed shaft and a first gear shaft, the first gear shaft is a hollow shaft and is sleeved outside the fixed shaft, one end of the fixed shaft extends out of the first gear shaft and is fixed on the mounting seat, and the other end of the first gear shaft is provided with the first power output end;

[0011] The second transmission shaft includes a rotating shaft and a second gear shaft, the second gear shaft is a hollow shaft and is sleeved on the outside of the rotating shaft, the circumferential rotation of the second gear shaft and the rotating shaft is restricted, one end of the rotating shaft extends out of the second gear shaft and is rotatably connected to the mounting seat, and the other end of the second gear shaft is provided with the second power output end.

[0012] Optionally, the synchronization mechanism includes a first gear, a second gear, a third gear, a fourth gear and a gear shaft, the gear shaft is rotatably connected to the mounting seat, the first gear is connected to the first output shaft, the second gear, the third gear and the fourth gear are arranged on the gear shaft, and the first gear is meshed with the second gear;

[0013] A first rack structure extending along its axial direction and meshing with the third gear is disposed on the outer peripheral wall of the first gear shaft, and a second rack structure extending along its axial direction and meshing with the fourth gear is disposed on the outer peripheral wall of the second gear shaft.

[0014] Optionally, a row of first tooth-shaped holes is provided on the outer peripheral wall of the first gear shaft along its axial direction, and the row of first tooth-shaped holes constitutes the first rack structure;

[0015] and / or,

[0016] A row of second tooth-shaped holes is arranged on the outer peripheral wall of the second gear shaft along its axial direction, and the row of second tooth-shaped holes constitutes the second rack structure.

[0017] Optionally, one end of the second gear shaft is provided with a gear constituting the second power output end.

[0018] Optionally, the second transmission mechanism further includes a reversing gear set, and the rotation of the second output shaft drives the rotating shaft, the second gear shaft and the gear to rotate integrally through the reversing gear set.

[0019] Optionally, the reversing gear set includes a first bevel gear and a second bevel gear, the first bevel gear is connected to the second output shaft of the power mechanism, and the second bevel gear is arranged on the rotating shaft and is orthogonally meshed with the first bevel gear.

[0020] Optionally, the power mechanism is a motor, and the first output shaft is coaxial with the second output shaft.

[0021] Optionally, it further comprises a circuit board and a trigger switch, wherein the circuit board is fixed in the mounting seat, the trigger switch is arranged on the circuit board, and the circuit board is electrically connected to the motor;

[0022] A protrusion is arranged on the outside of the first gear shaft or the second gear shaft. When the first power output end reaches the second position from the first position, the protrusion presses down the trigger switch so that the circuit board controls the second output shaft to start rotating.

[0023] Optionally, a convex strip extending along its axial direction is provided on the outer periphery of the rotating shaft, and a limiting groove extending along its axial direction is provided on the inner hole wall of the second gear shaft, and the convex strip is slidably assembled in the limiting groove to limit the circumferential rotation of the second gear shaft and the rotating shaft.

[0024] On the other hand, an embodiment of the present invention provides a door cover structure, comprising a cover plate, a mouth box and the above-mentioned actuator, wherein the mouth box has an inner opening and an outer opening spaced from each other in the inner and outer directions, and the mounting seat is located behind the mouth box;

[0025] When the first power output end moves from the first position to the second position, the cover plate moves outward from the closed position closing the external opening to the first preset position;

[0026] The rotation of the second power output end can drive the cover plate to translate from the first preset position along a preset direction to a second preset position that opens the external opening.

[0027] Optionally, it also includes a slide rail mechanism and a sliding mechanism, wherein the slide rail mechanism is connected to the inner side of the cover plate, and the sliding mechanism is fixed on the first power output end and slides with the slide rail mechanism along the preset direction, so that when the cover plate is translated from the first preset position to the second preset position, the cover plate slides relative to the sliding mechanism along the preset direction.

[0028] Optionally, the preset direction is a direction parallel to the cover plate.

[0029] Optionally, the sliding mechanism includes a slider, and a slide groove constituting the slide rail mechanism is provided on the inner side of the cover plate, and the slider can slide in the slide groove;

[0030] or,

[0031] The sliding mechanism comprises a sliding block, a sliding rail constituting the sliding rail mechanism is arranged on the inner side of the cover plate, and the sliding block is sleeved on the sliding rail and can slide along the sliding rail.

[0032] Optionally, the slide rail mechanism includes a first slide rail, which is fixedly connected to the inner side of the cover plate, a ball is arranged between the first slide rail and the cover plate, a ball hole for accommodating the ball is arranged on the first slide rail, and the ball protrudes from the ball hole and is in rolling contact with the sliding mechanism.

[0033] Optionally, the slide rail mechanism includes a first slide rail and a second slide rail, the first slide rail is fixedly connected to the inner side of the cover plate, a ball is arranged between the first slide rail and the second slide rail, a ball hole for accommodating the ball is arranged on the second slide rail, the ball protrudes from the ball hole and is in rolling contact with the sliding mechanism and the first slide rail.

[0034] Optionally, the slide rail mechanism includes a first slide rail and a second slide rail, and the sliding mechanism includes a third slide rail and a limit block, the first slide rail is fixedly connected to the inner side of the cover plate, the third slide rail is fixed on the limit block, a ball is arranged between the first slide rail and the third slide rail, and a ball hole for accommodating the ball is arranged on the second slide rail, the ball protrudes from the ball hole and is in rolling contact with the first slide rail and the third slide rail.

[0035] Optionally, a guide groove for guiding the movement of the limit block is provided in the concave space of the mouth box, and during the process of the cover plate being translated from the first preset position to the second preset position, the limit block always has a portion accommodated in the guide groove.

[0036] Optionally, the cover plate includes an outer cover and a reinforcing plate connected to the inner side of the outer cover, and the slide rail mechanism is connected to the inner side of the reinforcing plate.

[0037] The door cover structure of the actuator of the embodiment of the present invention is adopted, the first transmission mechanism has a first power output end, and the second transmission mechanism has a second power output end; the first transmission mechanism includes a first transmission shaft, one end of the first transmission shaft is connected to the mounting seat, and the other end of the first transmission shaft is provided with the first power output end; the second transmission mechanism includes a second transmission shaft, one end of the second transmission shaft is connected to the mounting seat, and the other end of the second transmission shaft is provided with the second power output end. The power mechanism has a first output shaft and a second output shaft, and the rotation of the first output shaft drives the first transmission shaft and the second transmission shaft to move along the axial direction thereof through the synchronization mechanism, so that the first power output end can move from the first position to the second position, and the cover plate moves outward from the closed position of the external opening of the closing box to the first preset position; in the second position, the rotation of the second output shaft of the power mechanism can drive the second transmission shaft to rotate, thereby driving the second power output end to rotate, and then driving the cover plate to translate from the first preset position along the preset direction to the second preset position of the external opening of the opening box. Compared with the prior art, the cover is no longer opened by rotating, and there is no need to set a cantilever. When the cover is opened to the maximum state, it is supported by the first transmission mechanism and the second transmission mechanism, and there is no rotation tendency, and the vertical stiffness is good.

[0038] In addition, the installation space occupied by the cantilever in the prior art can be reduced, and the volume of the door cover structure can be reduced.

[0039] In addition, the cover can be opened and closed automatically without manual operation, which enhances the experience and sense of technology.

[0040] On the other hand, an embodiment of the present invention provides a fuel filler port structure, including a fuel filler pipe and the above-mentioned door cover structure, one end of the fuel filler pipe is connected to the internal opening, and the other end of the fuel filler pipe is used to connect to the fuel tank.

[0041] On the other hand, an embodiment of the present invention provides a charging port structure, including a charging base and the above-mentioned door cover structure, wherein the charging base is connected to the internal opening.

[0042] On the other hand, an embodiment of the present invention further provides a vehicle, which includes the above-mentioned door cover structure, fuel filler port structure or charging port structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 is a schematic diagram of a door cover structure provided in the first embodiment of the present invention (without the mouth box);

[0044] Figure 2 is a schematic diagram of an actuator provided by a first embodiment of the present invention;

[0045] Figure 3 is a schematic diagram of an outer cover of a door cover structure provided by a first embodiment of the present invention;

[0046] Figure 4 is a schematic diagram of a reinforcing plate of a door cover structure provided by a first embodiment of the present invention;

[0047] Figure 5 yes Figure 4 Another perspective of the picture;

[0048] Figure 6 is a schematic diagram of a first slide rail of a door cover structure provided in a first embodiment of the present invention;

[0049] Figure 7 is a schematic diagram of a second slide rail of a door cover structure provided in a first embodiment of the present invention;

[0050] Figure 8 is a schematic diagram of a third slide rail of the door cover structure provided in the first embodiment of the present invention;

[0051] Fig. 9 is a schematic diagram of a limiting block of a door cover structure provided in a first embodiment of the present invention;

[0052] Fig.10 yes Fig. 9 The cross-sectional view along the AA direction;

[0053] Fig.11 is a schematic diagram of an opening box of a door cover structure provided by a first embodiment of the present invention;

[0054] Fig.12 yes Fig.11 The cross-sectional view along the BB direction;

[0055] Fig.13 It is a schematic diagram of the assembly of the reinforcing plate and the slide rail mechanism of the door cover structure provided by the first embodiment of the present invention;

[0056] Fig.14 yes Fig.13 Cross-sectional view along CC direction;

[0057] Fig.15 yes Fig.14 A partial enlarged view of

[0058] Fig.16 yes Fig.13 The cross-sectional view along the DD direction;

[0059] Fig.17 yes Fig.16 A partial enlarged view of

[0060] Fig.18 yes Fig.13 Another perspective of the picture;

[0061] Fig.19 yes Fig.18 A cross-sectional view along the EE direction;

[0062] Fig. 20 yes Fig.19 A partial enlarged view of

[0063] Fig.21 is an internal structural diagram of an actuator provided by a first embodiment of the present invention;

[0064] Fig. 22 is a schematic diagram of a cover plate of a door cover structure provided by a first embodiment of the present invention in a closed position;

[0065] Fig.23 yes Fig. 22 A cross-sectional view along the FF direction;

[0066] Fig.24 is a schematic diagram of a cover plate of a door cover structure provided by the first embodiment of the present invention being in a second preset position;

[0067] Fig.25 is a schematic diagram of a second gear shaft of an actuator provided in a first embodiment of the present invention;

[0068] Fig.26 is a top view of the second gear shaft of the actuator provided by the first embodiment of the present invention;

[0069] Fig. 27 is a schematic diagram of a rotating shaft of an actuator provided by a first embodiment of the present invention;

[0070] Fig.28 is a schematic diagram of a first gear shaft of an actuator provided in a first embodiment of the present invention;

[0071] Fig.29 is a top view of a first gear shaft of an actuator provided by a first embodiment of the present invention;

[0072] Fig.30 is a schematic diagram of a fixed axis of an actuator provided by a first embodiment of the present invention;

[0073] Fig.31 It is a schematic diagram of a circuit board and a trigger switch of an actuator provided in the first embodiment of the present invention.

[0074] The reference numerals in the specification are as follows:

[0075] 1. Cover plate; 11. Installation space; 12. Rack; 13. Outer cover; 131. First buckle; 14. Reinforcement plate; 141. First slot; 142. Reinforcement plate lip; 2. Mouth box; 21. Internal opening; 22. External opening; 23. Concave space; 231. Guide groove; 24. Lip groove; 25. Annular flange; 251. Thinning groove; 252. Buffer block; 27. Third slot; 28. Fourth slot; 3. Power mechanism; 4. First transmission mechanism; 4 1. First drive rod; 42. Crank; 43. Universal rod; 44. Push rod; 45. Fixed shaft; 451. Key teeth; 46. First gear shaft; 461. First rack structure; 462. First toothed hole; 463. Head; 464. Keyway; 5. Second transmission mechanism; 51. Second drive rod; 52. Power converter; 521. Outer cylinder; 53. Telescopic rod; 54. Gear; 55. Rotating shaft; 551. Raised strip; 56. Second gear shaft; 561. Second gear strip structure; 562, second tooth-shaped hole; 563, protrusion; 564, limit groove; 57, first bevel gear; 58, second bevel gear; 6, slide rail mechanism; 61, first slide rail; 610, through hole; 611, groove; 612, main body; 613, ball bearing support; 614, hook; 62, second slide rail; 620, mounting hole; 63, ball bearing; 621, ball bearing hole; 64, spring; 65, screw; 7, sliding mechanism; 71, third slide rail; 71 2. Connecting part; 713. Supporting part; 7131. Concave pit; 714. Bending part; 7141. Guide groove; 72. Limiting block; 721. Accommodating groove; 722. Notch groove; 8. Sealing ring; 9. Mounting seat; 10. Synchronizing mechanism; 101. First gear; 102. Second gear; 103. Third gear; 104. Fourth gear; 105. Gear shaft; 20. Circuit board; 30. Trigger switch; 301. Contact; 302. Shrapnel; 40. Electrical connector. DETAILED DESCRIPTION

[0076] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0077] In this article, the up and down, left and right, and front and back directions are based on the orientation of the vehicle when it is placed horizontally, where the inner direction refers to the direction pointing to the inside of the vehicle compartment, and the outer direction refers to the direction pointing to the outside of the vehicle compartment.

[0078] The door cover structure provided by the embodiment of the present invention is described in detail below with reference to the accompanying drawings.

[0079] First embodiment

[0080] like Figures 1 to 24As shown, the door cover structure provided by the first embodiment of the present invention includes a cover plate 1, a mouth box 2 and an actuator, wherein the mouth box 2 has an inner opening 21 and an outer opening 22 spaced apart from each other in the inner and outer directions.

[0081] The actuator includes a mounting seat 9, a power mechanism 3, a first transmission mechanism 4, a second transmission machine 5 and a synchronization mechanism 10, wherein the first transmission mechanism 4, the second transmission mechanism 5 and the synchronization mechanism 10 are arranged in the mounting seat 9; the first transmission mechanism 4 has a first power output end, and the second transmission mechanism 5 has a second power output end; the first transmission mechanism 4 includes a first transmission shaft, one end of the first transmission shaft is connected to the mounting seat 9, and the other end of the first transmission shaft is provided with the first power output end; the second transmission mechanism 5 includes a second transmission shaft, one end of the second transmission shaft is connected to the mounting seat, and the other end of the second transmission shaft is provided with the second power output end; the power mechanism 3 has a first output shaft and a second output shaft, and the rotation of the first output shaft drives the first transmission shaft and the second transmission shaft to move along their axial direction through the synchronization mechanism 10, so that the first power output end can move from the first position to the second position; in the second position, the rotation of the second output shaft of the power mechanism can drive the second transmission shaft to rotate, thereby driving the second power output end to rotate.

[0082] Preferably, the first transmission mechanism 4 includes a fixed shaft 45 and a first gear shaft 46, the first gear shaft 46 is a hollow shaft and is sleeved outside the fixed shaft 45, one end of the fixed shaft 45 extends out of the first gear shaft 46 and is fixed to the mounting seat 9, and the other end of the first gear shaft 46 is provided with the first power output end. The second transmission mechanism 5 includes a rotating shaft 55 and a second gear shaft 56, the second gear shaft 56 is a hollow shaft and is sleeved outside the rotating shaft 55, the circumferential rotation of the second gear shaft 56 and the rotating shaft 55 is restricted, one end of the rotating shaft 55 extends out of the second gear shaft 56 and is rotatably connected to the mounting seat 9, and the other end of the second gear shaft 56 is provided with the second power output end.

[0083] The power mechanism 3 has a first output shaft and a second output shaft. The rotation of the first output shaft drives the first gear shaft 46 and the second gear shaft 56 to move along their axial direction through the synchronization mechanism 10, so that the first power output end can move from the first position to the second position; in the second position, the rotation of the second output shaft of the power mechanism 3 can drive the rotating shaft 55 and the second gear shaft 56 to rotate as a whole, thereby driving the second power output end to rotate.

[0084] The mounting seat 9 is located at the rear of the mouth box 2 .

[0085] When the first power output end moves from the first position to the second position, the cover plate 1 moves from the closed position (see Fig. 22 ) moves outward to a first preset position; then, the first power output end remains stationary, and the rotation of the second power output end can drive the cover plate 1 to translate from the first preset position along a preset direction to a second preset position (see Fig.24 ).

[0086] The first preset position is located on the side of the cover plate 1 that is in the closed position close to the outside of the vehicle when the cover plate 1 closes the external opening. In the direction perpendicular to the cover plate 1, the first preset position corresponds to the closed position, and the first preset position is located on the outside of the outer surface of the side panel metal. The second preset position is when the cover plate 1 moves to the charging port or the fuel filler port open position where charging or refueling operations can be performed. When the power mechanism 3 is able to drive the cover plate 1 to move outward from the closed position closing the external opening to the first preset position through the first transmission mechanism 4, it is preferably a linear motion to improve the stability of the operation of the cover plate 1. Other non-linear motions can also achieve the opening of the charging port or the fuel filler port of the present application.

[0087] It also includes a slide rail mechanism 6 and a sliding mechanism 7, wherein the slide rail mechanism 6 is connected to the inner side of the cover plate 1, and the sliding mechanism 7 is fixed to the first power output end and slides with the slide rail mechanism 6 along the preset direction, so that when the cover plate 1 is translated from the first preset position to the second preset position, the cover plate 2 slides along the preset direction relative to the sliding mechanism 7. When the cover plate 1 is opened to the maximum position, the first transmission mechanism 4 provides support for the cover plate 1 through the slide rail mechanism 5 and the sliding mechanism 7, greatly improving the rigidity and strength of the cover plate 1.

[0088] Preferably, the preset direction is a direction parallel to the cover plate. That is, the sliding plane of the cover plate 1 is parallel and perpendicular to the inner and outer directions. For example, when the door cover structure is arranged on the side of the vehicle, the preset direction may be the front-to-back direction or the up-down direction. For another example, when the door cover structure is arranged on the front face of the vehicle, the preset direction may be the left-right direction or the up-down direction. For another example, when the door cover structure is arranged on the rear of the vehicle, the preset direction may be the left-right direction or the up-down direction.

[0089] See also Figure 6-8, 13-17, the slide rail mechanism 6 includes a first slide rail 61 and a second slide rail 62, the sliding mechanism 7 includes a third slide rail 71 and a stop block 72, the first slide rail 61 is fixedly connected to the inner side of the cover plate 2, the third slide rail 71 is fixed to the stop block 72 by gluing or other means, a ball 63 is arranged between the first slide rail 61 and the third slide rail 71, a ball hole 621 for accommodating the ball 63 is arranged on the second slide rail 62, the ball 63 protrudes from the ball hole 621 and rolls in contact with the first slide rail 61 and the third slide rail 71. The first slide rail 61 slides relative to the third slide rail 71 together with the cover plate 1, the second slide rail 62 moves following the first slide rail 61, and the ball 63 rolls in the ball hole 621, thereby enhancing the sliding stability and smoothness of the cover plate 1.

[0090] Both sides of the second slide rail 62 in the width direction are provided with a plurality of ball holes 621 arranged along the length direction of the second slide rail 62 . Correspondingly, two rows of balls 63 are arranged along the length direction of the second slide rail 62 , and a ball 63 is arranged in each ball hole 621 .

[0091] The second slide rail 62 is flexibly connected to the cover plate 1 to ensure that the ball 63 will not get stuck when rolling.

[0092] See also Figure 6 , 7 , 17, the second slide rail 62 is connected to the cover plate 2 through a spring 64; the first slide rail 61 is provided with a through hole 610 penetrating in the inward and outward directions, one end of the spring 64 is fixed to the second slide rail 62, and the other end of the spring 64 passes through the through hole 610 and is fixedly connected to the cover plate 2. Specifically, the second slide rail 62 is provided with a mounting hole 620, one end of the spring 64 is fixed to the second slide rail 62 by a screw 65 passing through the mounting hole 620, and the other end of the spring 64 is hooked on the inner side of the reinforcing plate 14.

[0093] See also Fig.17 The inner side of the cover plate 1 is provided with an outwardly concave installation space 11, and the first slide rail 61 is substantially U-shaped and interference-fitted in the installation space 11. The second slide rail 62 is linked with the first slide rail 61 by means of a ball bearing 63.

[0094] See also Fig.17The third slide rail 71 includes a connecting portion 712, supporting portions 713 connected to both sides of the connecting portion 712 in the width direction, and a bending portion 714 connected to a side of the supporting portion 713 away from the connecting portion 712. The connecting portion 712 and the bending portion 714 are fixed to the limit block 72 by gluing or other methods. The supporting portion 713 is spaced apart from the limit block 72. The bending portion 714 is provided with a guide groove 7141 recessed toward the center of the limit block 72. The first slide rail 61 includes a main body 612, a ball bearing support portion 613 connected to both sides of the main body 612 in the width direction, and a hook portion 614 connected to the side of the ball bearing support portion 613 away from the main body 612. The main body 612 and the ball bearing support portion 613 are spaced apart from the second slide rail 62. The hook portion 614 extends from the opening of the installation space 11 and bends toward the bending portion 714. The hook portion 614 is slidably inserted in the guide groove 7141. The guide groove 7141 can guide the sliding of the slide rail mechanism 6 to ensure the sliding stability of the slide rail mechanism 6 and the cover plate 1. The ball bearing 63 is supported between the ball bearing support portion 612 and the support portion 713.

[0095] The hook portion 614 is press-fitted with the inner wall of the opening of the installation space 11 by interference fit, so as to fix the first slide rail 61 on the inner side of the reinforcing plate 14 .

[0096] The ball support portion 613 is provided with a groove 611 , the support portion 713 is provided with a pit 7131 , and the ball 63 is located between the groove 611 and the pit 7131 .

[0097] The second slide rail 62 is also accommodated in the installation space 11, so that the slide rail mechanism 6 is embedded in the installation space 11 inside the reinforcing plate 14, the structure is more compact, and it can strengthen the cover plate 1. The cover plate 1 is opened by sliding along a preset direction, and the movement of the cover plate 1 is only inward and outward movement and sliding translation in a preset direction. During the opening and closing process of the cover plate 1, there is no rotation movement, and no rotation space is required.

[0098] See also Fig.11 The inner concave space 23 of the mouth box 2 is provided with a guide groove 231 for guiding the movement of the limit block 72. During the translation of the cover plate 1 from the first preset position to the second preset position, the limit block 72 always has a portion accommodated in the guide groove 231. That is, during the movement of the cover plate 1, the guide groove 231 always provides movement guidance for the limit block 72.

[0099] The power mechanism 3 is a motor (dual-shaft motor), and the first output shaft is coaxial with the second output shaft.

[0100] Of course, the motor can also be replaced by other components, for example, a combination of a linear actuator and a direction converter. The linear actuator is, for example, a cylinder or a hydraulic cylinder, and the direction converter can be a gear rack. The linear actuator drives the gear rack to move, thereby driving the gear to rotate.

[0101] See also Fig. 20 , 21 The synchronization mechanism 10 includes a first gear 101, a second gear 102, a third gear 103, a fourth gear 104 and a gear shaft 105, the gear shaft 105 is rotatably connected to the mounting seat 9, the first gear 101 is connected to the first output shaft of the power mechanism 3, the second gear 102, the third gear 103 and the fourth gear 104 are arranged on the gear shaft 105, and the first gear 101 is meshed with the second gear 102; a first rack structure 461 extending along its axial direction and meshing with the third gear 103 is arranged on the outer peripheral wall of the first gear shaft 46, and a second rack structure 561 extending along its axial direction and meshing with the fourth gear 104 is arranged on the outer peripheral wall of the second gear shaft 56.

[0102] A row of first tooth-shaped holes 462 is arranged on the outer peripheral wall of the first gear shaft 46 along its axial direction, and the row of first tooth-shaped holes 462 constitutes the first rack structure 461; a row of second tooth-shaped holes 562 is arranged on the outer peripheral wall of the second gear shaft 56 along its axial direction, and the row of second tooth-shaped holes 562 constitutes the second rack structure 561. The third gear 103 rotates to drive the first gear shaft 46 to move inward and outward, and the fourth gear 104 rotates to drive the second gear shaft 56 to move inward and outward. In addition, the tooth pitch of the fourth gear 104 is smaller than the dimension of the second tooth-shaped hole 562 along the axial direction of the second gear shaft 56, and the fourth gear 104 is in clearance fit with the first tooth-shaped hole 462, and the fourth gear 104 will not hinder the rotation of the second gear shaft 56.

[0103] A gear 54 constituting the second power output end is disposed at one end of the second gear shaft 56, and a rack 12 extending along the preset direction and meshing with the gear 54 is disposed on the inner side of the cover plate 1. The second transmission mechanism 5 also includes a reversing gear set. The circumferential rotation of the second gear shaft 56 and the rotating shaft 55 is restricted, that is, the second gear shaft 56 can move inward and outward along the rotating shaft 55, but cannot rotate relative to the rotating shaft 55. The rotation of the second output shaft of the power mechanism 3 drives the rotating shaft 55, the second gear shaft 56 and the gear 54 to rotate integrally through the reversing gear set.

[0104] The reversing gear set includes a first bevel gear 57 and a second bevel gear 58 . The first bevel gear 57 is connected to the second output shaft of the power mechanism 3 , and the second bevel gear 58 is disposed on the rotating shaft 55 and is orthogonally meshed with the first bevel gear 57 .

[0105] See also Figure 3 , 4 , 13, the cover plate 1 comprises an outer cover 13 and a reinforcing plate 14 connected to the inner side of the outer cover 13, and the slide rail mechanism 6 is connected to the inner side of the reinforcing plate 14. The outer cover 13 serves as a decoration and has a smooth outer surface.

[0106] A first clip 131 is provided on the inner side of the outer cover 13 , and a first slot 141 is provided on the outer side of the reinforcing plate 14 at a position corresponding to the first clip 131 . The first clip 131 is snapped into the first slot 141 to fix the outer cover 13 on the reinforcing plate 14 .

[0107] See also Figure 4 , 11 The inner edge of the reinforcing plate 14 is provided with a reinforcing plate lip 142 which surrounds the inner edge of the reinforcing plate 14, and the edge of the outer opening 22 is provided with a lip groove 24. When the cover plate 1 is in the closed position, the reinforcing plate lip 142 is accommodated in the lip groove 24 to seal the gap between the cover plate 1 and the mouth box 2, and form a sealed space between the cover plate 1 and the mouth box 2. The waterproof sealing of the cover plate structure is realized to prevent water, dust and other impurities from entering the mouth box 2.

[0108] See also Fig.11 A sealing ring 8 is pressed into the inner opening 31. The shape of the sealing ring 8 is adapted to the charging seat or the refueling pipe.

[0109] See also Fig.11 The mouth box 2 is provided with an annular flange 25 around the external opening 32, and a plurality of thinning grooves 251 are provided on the outer side of the annular flange 25, so that the thickness of the annular flange 25 at the thinning grooves 251 is smaller than the thickness at other positions of the annular flange 251. The function of the thinning grooves 251 is that in an emergency, the door cover structure can be destroyed without damaging the side panel metal to open the cover plate for refueling or charging.

[0110] A buffer block 252 is provided on the outer side of the annular flange 25 at a side away from the guide groove 231. The buffer block 252 is used to prevent the cover plate 1 from collapsing at a position far from the first transmission mechanism 6 in a static state, and plays a role in ensuring the surface difference of the appearance gap. Fig.11 In the embodiment, two buffer blocks 252 are arranged at intervals.

[0111] The inner edge of the mouth box 2 is provided with a second buckle, and the second buckle is engaged with a second slot on the body sheet metal (such as the side panel sheet metal) to fix the mouth box 2 on the body sheet metal.

[0112] See also Fig.12The inner side of the mouth box 2 is also provided with a third card slot 27 and a fourth card slot 28. The third card slot 27 is used to card the power mechanism 3 to fix the power mechanism 3 on the mouth box 2. The fourth card slot 28 is used to card the power converter 52 to fix the outer cylinder 521 of the power converter 52 on the mouth box 2.

[0113] See also Fig.21 and Fig.31 , also includes a circuit board 20 and a trigger switch 30, the circuit board 20 is fixed in the mounting seat 9, the trigger switch 30 is arranged on the circuit board 20, and the circuit board 20 is electrically connected to the motor; a protrusion 563 is arranged on the outside of the second gear shaft 56, when the first power output end reaches the second position from the first position, the protrusion 563 presses down the trigger switch 30, so that the circuit board 20 controls the second output shaft to start rotating.

[0114] See also Fig.21 and Fig.31 The trigger switch 30 has a contact 301 and a spring 302 arranged on the circuit board 20. The spring 302 is located on the movement path of the protrusion 563. The protrusion 563 can press down the spring 302, so that the spring 302 presses down the contact 301, thereby giving a signal that the cover 1 reaches the first preset position.

[0115] A chip is disposed on the circuit board 20 , and the trigger switch 30 is connected to the chip. The chip on the circuit board 20 is connected to the motor via an electrical connector 40 to control the operation of the motor.

[0116] Of course, the protrusion 563 may also be arranged outside the first gear shaft 46, and the principle is similar.

[0117] See also Figure 25-27 The outer periphery of the rotating shaft 55 is provided with a convex strip 551 extending along the axial direction thereof, and the inner hole wall of the second gear shaft 56 is provided with a limiting groove 564 extending along the axial direction thereof, and the convex strip 551 is slidably assembled in the limiting groove 564 to limit the circumferential rotation of the second gear shaft 56 and the rotating shaft 55. A plurality of convex strips 551 can be provided in parallel, and a plurality of limiting grooves 564 can be provided correspondingly.

[0118] See also Figure 28-30 The fixed shaft 45 is provided with a key tooth 451 extending along its axial direction on its outer periphery, and the inner hole wall of the first gear shaft 46 is provided with a key groove 464 extending along its axial direction, and the key tooth 451 is slidably assembled in the key groove 464 to limit the circumferential rotation of the first gear shaft 46 and the fixed shaft 45. Multiple key teeth 451 can be provided in parallel, and correspondingly, multiple key grooves 464 are also provided.

[0119] Of course, the circumferential rotation of the first gear shaft 46 and the fixed shaft 45 may not be restricted.

[0120] See also Fig. 9 , Fig.10 , Fig.17 , Fig. 20 and Fig.21 The limiting block 72 is provided with a receiving groove 721, the first gear shaft 46 has a columnar head 463, the outer diameter of the head 463 is larger than the diameter of other parts of the first gear shaft 46, and the head 463 is clamped in the receiving groove 721, so that the first gear shaft 46 and the limiting block 72 are easy to disassemble. The limiting block 72 is provided with notch grooves 722 on opposite sides, and the bending portion 714 is embedded in the notch grooves 722, which can reduce the space occupied by the bending portion 714, making the structure of the sliding mechanism 7 more compact.

[0121] The door cover structure of the embodiment of the present invention adopts the above-mentioned actuator. Compared with the prior art, it no longer adopts the cover plate rotating opening method, and there is no need to set a cantilever. When the cover plate 1 is opened to the maximum state, it is supported by the first transmission mechanism 4 and the second transmission mechanism 5, and there is no rotation tendency, and the vertical stiffness is good.

[0122] In the prior art, the cover plate is opened manually, which has a poor user experience. In the door cover structure of the embodiment of the present invention, the cover plate 1 can be opened and closed automatically without manual operation, which enhances the user experience and sense of technology.

[0123] In the prior art, the cantilever arrangement space is large, resulting in a large volume of the entire door cover structure. The door cover structure of the embodiment of the present invention no longer has a rotating arm, which can reduce the installation space occupied by the cantilever in the prior art and reduce the volume of the door cover structure.

[0124] In addition, the slide rail mechanism 7 is embedded in the installation space 11 of the reinforcing plate 14, which improves the anti-dent strength of the cover plate 1 in static state. For example, when the door cover structure is installed on the side panel metal, the anti-dent strength of the side panel metal can be improved.

[0125] The door cover structure of this embodiment has the following working principle:

[0126] When the cover 1 is in the closed state, an electric signal is sent to the power mechanism 3 through human operation, and the first output shaft of the power mechanism 3 rotates, and the first gear shaft 46 and the second gear shaft 56 are driven to move outward through the synchronization mechanism 10, and the sliding mechanism 7, the slide rail mechanism 6, and the cover 1 are driven to move outward together, and the gear 54 is always engaged with the rack 12 on the reinforcing plate 14. In this way, the cover 1 leaves the external opening 22 of the opening box 2 and moves from the closed position to the first preset position. Then, when the protrusion 563 on the outside of the second gear shaft 56 presses the trigger switch 30, the circuit board 20 controls the second output shaft to start rotating, and the first bevel gear 57 drives the second bevel gear 58, the rotating shaft 55, the second gear shaft 56 and the gear 54 to rotate together, and then through the engagement of the gear 54 with the rack 12, the cover 1 slides along the preset direction, gradually opens the external opening 22, until the external opening 22 is opened to the maximum state, and the second output shaft of the power mechanism 3 stops rotating. After refueling or charging is completed, the second output shaft of the power mechanism 3 rotates in the opposite direction to drive the gear 43 to rotate in the opposite direction through the first bevel gear 57, the second bevel gear 58, the rotating shaft 55 and the second gear shaft 56, and drive the cover 1 to slide in the opposite direction. After the cover 1 returns to the first preset position, the second output shaft of the power mechanism 3 is controlled not to output power, and the first output shaft of the power mechanism 3 rotates in the opposite direction, and drives the first gear shaft 46 and the second gear shaft 56 to move inwardly through the synchronization mechanism 10, thereby driving the sliding mechanism 7, the slide rail mechanism 6, the cover 1 and the gear 54 to move inwardly until the cover 1 returns to the closed state.

[0127] Second embodiment (not shown)

[0128] The door cover structure provided by the second embodiment is different from that of the first embodiment in that the slide rail mechanism is different.

[0129] Specifically, the sliding mechanism includes a sliding block, and a sliding groove constituting the sliding rail mechanism is arranged on the inner side of the cover plate, and the sliding block can slide in the sliding groove.

[0130] Compared with the first embodiment, the slider and the slide groove slide in cooperation with each other, and the number of parts is reduced.

[0131] Preferably, the slide groove is a linear slide groove to improve the stability of the movement of the cover plate 1.

[0132] Third embodiment (not shown)

[0133] The door cover structure provided by the third embodiment is different from that of the first embodiment in that the slide rail mechanism is different.

[0134] Specifically, the sliding mechanism includes a slider, a slider constituting the slider mechanism is provided on the inner side of the cover plate, and the slider is sleeved on the slider and can slide along the slider.

[0135] Compared with the first embodiment, the slide block slides in cooperation with the slide rail, and the number of parts is reduced.

[0136] Fourth embodiment (not shown)

[0137] The door cover structure provided in the fourth embodiment is different from that in the first embodiment in that the slide rail mechanism is different.

[0138] Specifically, the slide rail mechanism includes a first slide rail, which is fixedly connected to the inner side of the cover plate, a ball is arranged between the first slide rail and the cover plate, and a ball hole for accommodating the ball is arranged on the first slide rail. The ball protrudes from the ball hole and is in rolling contact with the sliding mechanism.

[0139] Compared with the first embodiment, the slide rail mechanism has only one slide rail, and the number of parts is reduced.

[0140] Preferably, the slide rail is a linear slide rail to improve the stability of the movement of the cover plate 1.

[0141] Fifth embodiment (not shown)

[0142] The door cover structure provided in the fifth embodiment is different from that in the first embodiment in that the slide rail mechanism is different.

[0143] Specifically, the slide rail mechanism includes a first slide rail and a second slide rail, the first slide rail is fixedly connected to the inner side of the cover plate, a ball is arranged between the first slide rail and the second slide rail, and a ball hole for accommodating the ball is arranged on the second slide rail. The ball protrudes from the ball hole and is in rolling contact with the sliding mechanism and the first slide rail.

[0144] Compared with the first embodiment, the third slide rail is reduced.

[0145] Sixth embodiment (not shown)

[0146] The door cover structure provided in the sixth embodiment is different from that in the first embodiment in that the power mechanism is divided into two independent parts.

[0147] Specifically, the power mechanism includes a first power source and a second power source; the first output shaft is the output end of the first power source, and the second output shaft is the output end of the second power source. The rotation of the first output shaft of the first power source drives the first gear shaft and the second gear shaft to move along their axial direction through the synchronization mechanism, so that the first power output end can move from the first position to the second position; in the second position, the rotation of the second output shaft of the second power source drives the rotating shaft and the second gear shaft to rotate as a whole, thereby driving the second power output end to rotate.

[0148] By driving the motor in different stages with two independent power sources, the control is simpler. In addition, the number of components of the first transmission mechanism and the second transmission mechanism can be reduced, thereby simplifying the structure of the first transmission mechanism and the second transmission mechanism.

[0149] The first power source is a first motor, and the second power source is a second motor.

[0150] Of course, the motor can also be replaced by other components, for example, a combination of a linear actuator and a direction converter. The linear actuator is, for example, a cylinder or a hydraulic cylinder, and the direction converter can be a gear rack. The linear actuator drives the gear rack to move, thereby driving the gear to rotate.

[0151] Seventh embodiment (not shown)

[0152] The door cover structure provided by the seventh embodiment is different from that of the first embodiment in that the first rack structure is a first rack fixed to the outer peripheral wall of the first gear shaft by bonding or welding, and the second rack structure is a second rack fixed to the outer peripheral wall of the second gear shaft by bonding or welding.

[0153] In the seventh embodiment, compared with the first embodiment, the first rack structure is independent of the first gear shaft, the first gear shaft does not need to have a row of first tooth-shaped holes, and the first gear shaft has a higher strength. The second rack structure is independent of the second gear shaft, the second gear shaft does not need to have a row of second tooth-shaped holes, and the first gear shaft has a higher strength.

[0154] In addition, the tooth spacing of the fourth gear is smaller than the axial dimension of the second rack along the second gear shaft, and the tooth gaps of the fourth gear and the second rack are matched, so the fourth gear will not hinder the rotation of the second gear shaft.

[0155] In addition, an embodiment of the present invention further provides a fuel filler opening structure, including a fuel filler pipe and a door cover structure of any of the above embodiments, one end of the fuel filler pipe is connected to the internal opening 21, and the other end of the fuel filler pipe is used to connect to the fuel tank.

[0156] The sealing ring 8 is used to seal the gap between one end of the filling pipe and the inner wall surface of the inner opening 21 .

[0157] In addition, an embodiment of the present invention further provides a charging port structure, including a charging base and a door cover structure of any of the above embodiments, wherein the charging base is connected to the internal opening 32 and is used for an external charging gun.

[0158] The sealing ring 8 is used to form a gap between the outer periphery of the charging base and the inner wall surface of the inner opening 21 .

[0159] In addition, an embodiment of the present invention further provides a vehicle, which includes the actuator, door cover structure, fuel filler port structure or charging port structure of the above-mentioned embodiment.

[0160] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An actuator, It is characterized in that It includes a mounting seat, a power mechanism, a first transmission mechanism, a second transmission mechanism and a synchronization mechanism, wherein the first transmission mechanism, the second transmission mechanism and the synchronization mechanism are arranged in the mounting seat; the first transmission mechanism has a first power output end, and the second transmission mechanism has a second power output end; The first transmission mechanism comprises a first transmission shaft, one end of the first transmission shaft is connected to the mounting seat, and the other end of the first transmission shaft is provided with the first power output end; The second transmission mechanism comprises a second transmission shaft, one end of the second transmission shaft is connected to the mounting seat, and the other end of the second transmission shaft is provided with the second power output end; The power mechanism has a first output shaft and a second output shaft, and the rotation of the first output shaft drives the first transmission shaft and the second transmission shaft to move along their axial directions through the synchronization mechanism, so that the first power output end can move from a first position to a second position; In the second position, the rotation of the second output shaft of the power mechanism can drive the second transmission shaft to rotate, thereby driving the second power output end to rotate.

2. The actuator according to claim 1, It is characterized in that The first transmission shaft includes a fixed shaft and a first gear shaft, the first gear shaft is a hollow shaft and is sleeved outside the fixed shaft, one end of the fixed shaft extends out of the first gear shaft and is fixed on the mounting seat, and the other end of the first gear shaft is provided with the first power output end; The second transmission shaft includes a rotating shaft and a second gear shaft, the second gear shaft is a hollow shaft and is sleeved on the outside of the rotating shaft, the circumferential rotation of the second gear shaft and the rotating shaft is restricted, one end of the rotating shaft extends out of the second gear shaft and is rotatably connected to the mounting seat, and the other end of the second gear shaft is provided with the second power output end.

3. The actuator according to claim 2, It is characterized in that The synchronization mechanism comprises a first gear, a second gear, a third gear, a fourth gear and a gear shaft, wherein the gear shaft is rotatably connected to the mounting seat, the first gear is connected to the first output shaft, the second gear, the third gear and the fourth gear are arranged on the gear shaft, and the first gear is meshed with the second gear; A first rack structure extending along its axial direction and meshing with the third gear is disposed on the outer peripheral wall of the first gear shaft, and a second rack structure extending along its axial direction and meshing with the fourth gear is disposed on the outer peripheral wall of the second gear shaft.

4. The actuator according to claim 3, It is characterized in that A row of first tooth-shaped holes is arranged on the outer peripheral wall of the first gear shaft along its axial direction, and the row of first tooth-shaped holes constitutes the first rack structure; and / or, A row of second tooth-shaped holes is arranged on the outer peripheral wall of the second gear shaft along its axial direction, and the row of second tooth-shaped holes constitutes the second rack structure.

5. The actuator according to claim 2, It is characterized in that One end of the mounting seat of the second gear shaft is provided with a gear constituting the second power output end.

6. The actuator according to claim 5, It is characterized in that The second transmission mechanism further includes a reversing gear set, and the rotation of the second output shaft drives the rotating shaft, the second gear shaft and the gear to rotate integrally through the reversing gear set.

7. The actuator according to claim 6, It is characterized in that The reversing gear set includes a first bevel gear and a second bevel gear, the first bevel gear is connected to the second output shaft of the power mechanism, and the second bevel gear is arranged on the rotating shaft and is orthogonally meshed with the first bevel gear.

8. The actuator according to claim 2, It is characterized in that The power mechanism is a motor, and the first output shaft is coaxial with the second output shaft.

9. The actuator according to claim 8, It is characterized in that It also includes a circuit board and a trigger switch, wherein the circuit board is fixed in the mounting seat, the trigger switch is arranged on the circuit board, and the circuit board is electrically connected to the motor; A protrusion is arranged on the outside of the first gear shaft or the second gear shaft. When the first power output end reaches the second position from the first position, the protrusion presses down the trigger switch so that the circuit board controls the second output shaft to start rotating.

10. The actuator according to claim 2, It is characterized in that A convex strip extending along its axial direction is arranged on the outer periphery of the rotating shaft, and a limiting groove extending along its axial direction is arranged on the inner hole wall of the second gear shaft, and the convex strip is slidably assembled in the limiting groove to limit the circumferential rotation of the second gear shaft and the rotating shaft.

11. A door cover structure, It is characterized in that It comprises a cover plate, a mouth box and the actuator according to any one of claims 1 to 10, wherein the mouth box has an inner opening and an outer opening spaced from each other in the inner and outer directions, and the mounting seat is located behind the mouth box; When the first power output end moves from the first position to the second position, the cover plate moves outward from the closed position closing the external opening to the first preset position; The rotation of the second power output end can drive the cover plate to translate from the first preset position along a preset direction to a second preset position that opens the external opening.

12. The door cover structure according to claim 11, It is characterized in that It also includes a slide rail mechanism and a sliding mechanism, wherein the slide rail mechanism is connected to the inner side of the cover plate, and the sliding mechanism is fixed on the first power output end and slides with the slide rail mechanism along the preset direction, so that when the cover plate is translated from the first preset position to the second preset position, the cover plate slides relative to the sliding mechanism along the preset direction.

13. The door cover structure according to claim 11, It is characterized in that The preset direction is a direction parallel to the cover plate.

14. The door cover structure according to claim 12, It is characterized in that The sliding mechanism comprises a slider, and a slide groove constituting the slide rail mechanism is arranged on the inner side of the cover plate, and the slider can slide in the slide groove; or, The sliding mechanism comprises a sliding block, a sliding rail constituting the sliding rail mechanism is arranged on the inner side of the cover plate, and the sliding block is sleeved on the sliding rail and can slide along the sliding rail.

15. The door cover structure according to claim 12, It is characterized in that The slide rail mechanism includes a first slide rail, which is fixedly connected to the inner side of the cover plate. A ball is arranged between the first slide rail and the cover plate. A ball hole for accommodating the ball is arranged on the first slide rail. The ball protrudes from the ball hole and is in rolling contact with the sliding mechanism.

16. The door cover structure according to claim 12, It is characterized in that The slide rail mechanism includes a first slide rail and a second slide rail, the first slide rail is fixedly connected to the inner side of the cover plate, a ball is arranged between the first slide rail and the second slide rail, a ball hole for accommodating the ball is arranged on the second slide rail, the ball protrudes from the ball hole and is in rolling contact with the sliding mechanism and the first slide rail.

17. The door cover structure according to claim 12, It is characterized in that The slide rail mechanism includes a first slide rail and a second slide rail, and the sliding mechanism includes a third slide rail and a limit block. The first slide rail is fixedly connected to the inner side of the cover plate, and the third slide rail is fixed on the limit block. A ball is arranged between the first slide rail and the third slide rail, and a ball hole for accommodating the ball is arranged on the second slide rail. The ball protrudes from the ball hole and is in rolling contact with the first slide rail and the third slide rail.

18. The door cover structure according to claim 17, It is characterized in that A guide groove for guiding the movement of the limit block is provided in the concave space of the mouth box, and during the process of the cover plate being translated from the first preset position to the second preset position, the limit block always has a portion accommodated in the guide groove.

19. The door cover structure according to claim 12, It is characterized in that The cover plate comprises an outer cover and a reinforcing plate connected to the inner side of the outer cover, and the slide rail mechanism is connected to the inner side of the reinforcing plate.

20. A fuel filler structure, It is characterized in that It comprises a refueling pipe and a door cover structure as described in any one of claims 11 to 19, one end of the refueling pipe is connected to the internal opening, and the other end of the refueling pipe is used to connect to a fuel tank.

21. A charging port structure, It is characterized in that It comprises a charging base and the door cover structure according to any one of claims 11 to 19, wherein the charging base is connected to the internal opening.

22. A vehicle, It is characterized in that It includes the door cover structure described in any one of claims 11-19, the fuel filler port structure described in claim 20, or the charging port structure described in claim 21.

Images