CN221137628U - Door closure structure, oil filler structure, charging port structure and vehicle - Google Patents

Abstract

The utility model relates to a door cover structure, an oil filler structure, a charging port structure and a vehicle, wherein the door cover structure comprises a cover plate, a port box and a driving device, the port box is provided with an inner opening and an outer opening which are mutually spaced in the inner-outer direction, and the driving device comprises a power mechanism, a first transmission mechanism and a second transmission mechanism; the power mechanism can drive the cover plate to move outwards from a closing position for closing the external opening to a first preset position through the first transmission mechanism; the power mechanism can drive the cover plate to translate from the first preset position to a second preset position for opening the external opening along a preset direction through the second transmission mechanism. Compared with the prior art, the door cover structure does not need to adopt a cover plate rotating and opening mode, a cantilever is not needed to be arranged, and when the cover plate is opened to the maximum state, the door cover structure is supported by the first transmission mechanism and the second transmission mechanism, does not have rotating trend, and has good vertical rigidity.

Description

Door closure structure, oil filler structure, charging port structure and vehicle

Technical Field

The utility model belongs to the technical field of accessories of hybrid vehicles, and particularly relates to a door cover structure, an oil filler structure, a charging port structure and a vehicle.

Background

The prior oil filler structure or charging port structure comprises a cantilever, an outer cover, a torsion spring, a port box, a rotating shaft and a push motor, wherein the outer cover is fixed on the cantilever to form a cover assembly. The working principle is as follows: the electric signal is unlocked, the hand presses the area corresponding to the triggering part of the push motor on the outer cover, the hand opens the cover assembly to the maximum opening state (in the process, the torsion spring provides certain auxiliary operation force), and after oiling or charging is finished, the hand closes the cover assembly to be matched and locked with the push motor structure.

The existing oil filler structure or charging port structure is long in cantilever setting in order to ensure the rotation space of the cantilever and the oiling or charging operation space, and the vertical rigidity of the cover assembly is poor when the cover assembly is opened to the maximum state.

Disclosure of utility model

The technical problems to be solved by the utility model are as follows: aiming at the problems that the cantilever is longer and the vertical rigidity of the cover component is poor when the cover component is opened to the maximum state in the prior oil filler structure or charging port structure, the door cover structure, the oil filler structure, the charging port structure and the vehicle are provided.

In order to solve the technical problems, in one aspect, an embodiment of the present utility model provides a door cover structure, including a cover plate, a mouth box, and a driving device, where the mouth box has an inner opening and an outer opening that are spaced from each other in an inner-outer direction, and the driving device includes a power mechanism, a first transmission mechanism, and a second transmission mechanism;

The power mechanism can drive the cover plate to move outwards from a closing position for closing the external opening to a first preset position through the first transmission mechanism;

The power mechanism can drive the cover plate to translate from the first preset position to a second preset position for opening the external opening along a preset direction through the second transmission mechanism.

Optionally, the sliding mechanism is fixed on the first transmission mechanism and is in sliding fit with the sliding mechanism along the preset direction, so that the cover plate slides along the preset direction relative to the sliding mechanism in the process of translating from the first preset position to the second preset position.

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

Optionally, the preset direction is a front-back direction, an up-down direction, or a left-right direction.

Optionally, the sliding mechanism comprises a sliding block, a sliding groove is arranged on the inner side of the cover plate, and the sliding block can slide in the sliding groove;

Or alternatively

The sliding mechanism comprises a sliding block, a sliding rail 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.

Optionally, the sliding rail mechanism includes first slide rail, first slide rail fixed connection is in the inboard of apron, be provided with the ball between first slide rail and the apron, be provided with on the first slide rail and hold the ball hole of ball, the ball protrusion in the ball hole and with slide mechanism rolling contact.

Optionally, the slide rail mechanism includes first slide rail and second slide rail, first slide rail fixed connection is in the inboard of apron, be provided with the ball between first slide rail and the second slide rail, be provided with on the second slide rail and hold the ball hole of ball, the ball protrusion in the ball hole and with slide mechanism and first slide rail rolling contact.

Optionally, the slide rail mechanism includes first slide rail and second slide rail, slide mechanism includes third slide rail and stopper, first slide rail fixed connection is in the inboard of apron, the third slide rail is fixed on the stopper, be provided with the ball between first slide rail and the third slide rail, be provided with on the second slide rail and hold the ball hole of ball, the ball protrusion in the ball hole and with first slide rail and third slide rail rolling contact.

Optionally, a guiding groove for guiding the movement of the limiting block is arranged in the concave space of the mouth box, and the limiting block always has a part accommodated in the guiding groove in the process that the cover plate translates from the first preset position to the second preset position.

Optionally, the second sliding rail is flexibly connected with the cover plate.

Optionally, the second sliding rail is connected with the cover plate through a spring;

The first sliding rail is provided with a through hole penetrating along the inner and outer directions, one end of the spring is fixed on the second sliding rail, and the other end of the spring penetrates through the through hole and is fixedly connected with the cover plate.

Optionally, the first transmission mechanism comprises a first driving rod, a crank, a universal rod and a push rod, the power mechanism is provided with a first output shaft, the first driving rod is coaxially connected with the first output shaft or integrally formed, one end of the crank is connected with the first driving rod, one end of the universal rod is connected with the other end of the crank in a spherical hinge manner, the other end of the universal rod is connected with one end of the push rod in a spherical hinge manner, and the other end of the push rod is fixed on the sliding mechanism; the first driving rod is perpendicular to the crank, and is parallel to and spaced from the ejector rod;

The first driving rod rotates to drive the crank to rotate, so that the universal rod drives the sliding mechanism and the cover plate to move along the inner and outer directions.

Optionally, the power mechanism is arranged behind the mouth box, the first driving rod passes through the mouth box, and the crank, the universal rod and the ejector rod are positioned in the concave space of the mouth box.

Optionally, the second transmission mechanism comprises a second driving rod, a power converter, a telescopic rod and a gear, the power mechanism is provided with a second output shaft, one end of the second driving rod is connected with the second output shaft, the other end of the second driving rod is connected with the power converter, the telescopic rod is nested with the power converter, and the gear is connected with one end of the telescopic rod, which is far away from the power converter; the power converter is used for converting the rotary motion of the second driving rod into the telescopic motion of the telescopic rod;

The inner side of the cover plate is provided with a rack which extends along the preset direction and is meshed with the gear, the second output shaft of the power mechanism rotates to drive the second driving rod to rotate, so that the power converter drives the telescopic rod to stretch and retract relative to the power converter, displacement of the cover plate from the closing position to the first preset position is matched, and normal meshing of the gear and the rack is further maintained.

Optionally, the power converter comprises an outer cylinder, a rotating shaft and a sliding body, the rotating shaft is arranged in the outer cylinder, the other end of the second driving rod is connected with one end of the rotating shaft, the other end of the rotating shaft is connected with the sliding body, the telescopic rod is inserted in the outer cylinder, the telescopic rod is a hollow shaft, a spiral groove spirally rising along the axial direction of the telescopic rod is formed in the inner hole wall of the telescopic rod, and the sliding body is slidably arranged in the spiral groove;

the second output shaft of the power mechanism rotates to drive the second driving rod, the rotating shaft and the sliding body to rotate, so that the sliding body slides relative to the spiral groove to drive the telescopic rod to stretch relative to the outer cylinder.

Optionally, the second driving rod, the power converter and the power mechanism are arranged behind the mouth box, the telescopic rod penetrates through the mouth box, and the gear is located in the concave space of the mouth box.

Optionally, the driving device further comprises a mounting seat, the first transmission mechanism and the second transmission mechanism are arranged in the mounting seat, the mounting seat is located at the rear of the mouth box, the first transmission mechanism is provided with a first power output end, the second transmission mechanism is provided with a second power output end, the first power output end is connected with the sliding mechanism, and the second power output end is connected with the cover plate.

Optionally, the first transmission mechanism comprises a fixed shaft and a first gear shaft, the first gear shaft is a hollow shaft and is sleeved outside the fixed shaft, and one end of the fixed shaft extending out of the first gear shaft is fixed on the mounting seat; one end of the first gear shaft extending out of the mounting seat forms the first power output end;

the second transmission mechanism comprises a rotating shaft and a second gear shaft, the second gear shaft is a hollow shaft and is sleeved outside the rotating shaft, and one end of the rotating shaft extending out of the second gear shaft is rotationally connected to the mounting seat;

The driving device further comprises a synchronous gear mechanism arranged in the mounting seat, the power mechanism is provided with a first output shaft, and the first output shaft of the power mechanism rotates to drive the first gear shaft and the second gear shaft to move along the inner and outer directions through the synchronous gear mechanism.

Optionally, the synchronous gear mechanism comprises a first gear, a second gear, a third gear, a fourth gear and a gear shaft, the gear shaft is rotationally connected to the mounting seat, the first gear is connected to a first output shaft of the power mechanism, 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;

The outer circumferential wall of the first gear shaft is provided with a first rack structure which extends along the axial direction and is meshed with the third gear, and the outer circumferential wall of the second gear shaft is provided with a second rack structure which extends along the axial direction and is meshed with the fourth gear.

Optionally, a row of first tooth-shaped holes are arranged on the peripheral wall of the first tooth shaft along the axial direction of the peripheral wall of the first tooth shaft, and the row of first tooth-shaped holes form the first rack structure;

and/or the number of the groups of groups,

And a row of second tooth-shaped holes are formed in the peripheral wall of the second gear shaft along the axial direction of the second gear shaft, and the row of second tooth-shaped holes form the second rack structure.

Optionally, a gear forming the second power output end is arranged at one end, close to the cover plate, of the second gear shaft, and a rack extending along the preset direction and meshed with the gear is arranged at the inner side of the cover plate;

The second transmission mechanism further comprises a reversing gear set, the circumferential rotation of the second gear shaft and the rotating shaft is limited, the power mechanism is provided with a second output shaft, and the rotation of the second output shaft of the power mechanism drives the rotating shaft, the second gear shaft and the gear to integrally rotate through the reversing gear set.

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 disposed on the rotating shaft and is meshed with the first bevel gear in an orthogonal manner.

Optionally, the power mechanism comprises a first power source and a second power source;

The first power source can drive the cover plate to move outwards from a closing position for closing the external opening to a first preset position through the first transmission mechanism;

the second power source can drive the cover plate to translate from the first preset position to a second preset position for opening the external opening along a preset direction through the second transmission mechanism.

Optionally, the first power source is a first motor, and the second power source is a second motor.

Optionally, the power mechanism is a motor, and the motor has a first output shaft and a second output shaft.

Optionally, the cover plate comprises an outer cover and a reinforcing plate connected to the inner side of the outer cover, and the sliding rail mechanism is connected to the inner side of the reinforcing plate.

Optionally, the inside edge of the stiffener is provided with a circumferential stiffener lip, the edge of the outer opening is provided with a lip groove, in which the stiffener lip is received in the closed position of the lid to seal the gap between the lid and the mouth box.

Optionally, a sealing ring is pressed in the inner opening.

Optionally, the mouthpiece is provided with an annular flange around the external opening, and a plurality of thinning grooves are provided on an outer side surface of the annular flange, so that a thickness of the annular flange at the thinning grooves is smaller than a thickness at other positions of the annular flange.

Optionally, the mouth box is provided with an annular flange around the external opening, and a buffer block is provided on a side of the outer side surface of the annular flange, which is far away from the first transmission mechanism.

According to the door cover structure, the power mechanism can drive the cover plate to move outwards from the closing position for closing the external opening of the mouth box to the first preset position through the first transmission mechanism; the power mechanism can drive the cover plate to translate from the first preset position to a second preset position for opening the external opening of the opening box along a preset direction through the second transmission mechanism. Compared with the prior art, the cover plate rotating and opening mode is not adopted any more, a cantilever is not required 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, no rotating trend exists, and the vertical rigidity is good.

In addition, the installation space occupied by the cantilever in the prior art can be reduced, and the size of the door cover structure is reduced.

In addition, the cover plate can be automatically opened and closed without manual operation, so that experience and technological sense are enhanced.

On the other hand, the embodiment of the utility model provides a fuel filler structure, which comprises a fuel filler pipe and the door cover structure, wherein one end of the fuel filler pipe is connected with the internal opening, and the other end of the fuel filler pipe is used for being connected with a fuel tank.

In still another aspect, an embodiment of the present utility model provides a charging port structure, including a charging seat and the door cover structure described above, where the charging seat is connected to the inner opening.

In still another aspect, an embodiment of the present utility model further provides a vehicle, which includes the door cover structure, the fuel filler structure, or the charging port structure described above.

Drawings

FIG. 1 is an exploded view of a door cover structure provided by a first embodiment of the present utility model;

fig. 2 is a schematic view of an outer cover of a door cover structure according to a first embodiment of the present utility model;

FIG. 3 is a schematic view of a reinforcement plate of a door cover structure according to a first embodiment of the present utility model;

FIG. 4 is another view of FIG. 3;

FIG. 5 is a schematic view of a mouthpiece with a door structure according to a first embodiment of the present utility model;

FIG. 6 is another view of FIG. 5;

Fig. 7 is a schematic view of a driving device of a door cover structure according to a first embodiment of the present utility model;

fig. 8 is a cross-sectional view of a door cover structure provided by the first embodiment of the present utility model;

FIG. 9 is a schematic view illustrating the engagement of a gear and a rack of a door cover structure according to a first embodiment of the present utility model;

FIG. 10 is a schematic view illustrating the installation of a reinforcing plate and a mouth box of a door cover structure according to a first embodiment of the present utility model;

FIG. 11 is a schematic diagram illustrating the installation of a driving device and a mouthpiece of a door cover structure according to a first embodiment of the present utility model;

FIG. 12 is another view of FIG. 11;

FIG. 13 is a schematic view of a closure panel of a door closure structure according to a first embodiment of the present utility model in a closed position;

Fig. 14 is a schematic view of a cover plate of a door cover structure provided in a first embodiment of the present utility model in a second preset position;

FIG. 15 is a schematic view of a door structure (with the mouth box removed) provided in accordance with a second embodiment of the present utility model;

Fig. 16 is a schematic view of a driving device of a door cover structure according to a second embodiment of the present utility model;

fig. 17 is a schematic view of the outer cover of the door cover structure according to the second embodiment of the present utility model;

FIG. 18 is a schematic view of a reinforcement panel of a door cover structure according to a second embodiment of the present utility model;

FIG. 19 is another view of FIG. 18;

Fig. 20 is a schematic view of a first sliding rail of a door cover structure according to a second embodiment of the present utility model;

Fig. 21 is a schematic view of a second sliding rail of a door cover structure according to a second embodiment of the present utility model;

fig. 22 is a schematic view of a third sliding rail of a door cover structure according to a second embodiment of the present utility model;

FIG. 23 is a schematic view of a stopper of a door cover structure according to a second embodiment of the present utility model;

FIG. 24 is a cross-sectional view taken along the line A-A in FIG. 23;

FIG. 25 is a schematic view of a mouthpiece with a door structure according to a second embodiment of the present utility model;

FIG. 26 is a cross-sectional view taken along the direction B-B in FIG. 25;

Fig. 27 is an assembly schematic diagram of a reinforcement plate and a sliding rail mechanism of a door cover structure according to a second embodiment of the present utility model;

FIG. 28 is a cross-sectional view taken along the direction C-C in FIG. 27;

FIG. 29 is an enlarged partial view of FIG. 28;

FIG. 30 is a cross-sectional view taken along the direction D-D in FIG. 27;

FIG. 31 is an enlarged view of a portion of FIG. 30;

FIG. 32 is another view of FIG. 15;

FIG. 33 is a cross-sectional view taken along the direction E-E in FIG. 32;

FIG. 34 is an enlarged partial view of FIG. 33;

Fig. 35 is an internal construction view of a door cover structure provided by a second embodiment of the present utility model;

FIG. 36 is a schematic view of a closure panel of a door closure structure according to a second embodiment of the present utility model in a closed position;

FIG. 37 is a cross-sectional view taken along the direction F-F in FIG. 36;

fig. 38 is a schematic view of a cover plate of a door cover structure according to a second embodiment of the present utility model in a second preset position.

Reference numerals in the specification are as follows:

1. A cover plate; 11. an installation space; 12. a rack; 13. an outer cover; 131. a first buckle; 14. a reinforcing plate; 141. a first clamping groove; 142. a stiffener lip; 2. a mouth box; 21. an internal opening; 22. an outer opening; 23. a concave space; 231. a guide groove; 24. a lip groove; 25. an annular flange; 251. thinning the groove; 252. a buffer block; 27. a third clamping groove; 28. a fourth clamping groove; 3. a power mechanism; 4. a first transmission mechanism; 41. a first driving lever; 42. a crank; 43. a universal rod; 44. a push rod; 45. a fixed shaft; 46. a first gear shaft; 461. a first rack structure; 462. a first toothed hole; 463. a head; 5. a second transmission mechanism; 51. a second driving lever; 52. a power converter; 521. an outer cylinder; 53. a telescopic rod; 54. a gear; 55. a rotation shaft; 56. a second gear shaft; 561. a second rack structure; 562. a second tooth-shaped hole; 57. a first bevel gear; 58. a second bevel gear; 6. a slide rail mechanism; 61. a first slide rail; 610. a through hole; 611. a groove; 612. a main body portion; 613. a ball support portion; 614. a hook part; 62. a second slide rail; 620. a mounting hole; 63. a ball; 621. a ball hole; 64. a spring; 65. a screw; 7. a sliding mechanism; 71. a third slide rail; 711. a convex plate; 712. a connection part; 713. a support part; 7131. pit; 714. a bending part; 7141. a guide groove; 72. a limiting block; 721. a receiving groove; 722. a notch groove; 8. a seal ring; 9. a mounting base; 10. a synchronous gear mechanism; 101. a first gear; 102. a second gear; 103. a third gear; 104. a fourth gear; 105. a gear shaft.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Herein, the up-down, right-left, front-rear directions are based on the orientation when the vehicle is placed horizontally, wherein the inside direction refers to a direction directed toward the interior of the vehicle cabin, and the outside direction refers to a direction directed toward the exterior of the vehicle cabin. The following describes the door cover structure provided by the embodiment of the utility model in detail with reference to the accompanying drawings.

First embodiment

As shown in fig. 1 to 14, the door structure provided in the first embodiment of the present utility model includes a cover plate 1, a mouth box 2, and a driving device, wherein the mouth box 2 has an inner opening 21 and an outer opening 22 spaced from each other in an inner-outer direction, and the driving device includes a power mechanism 3, a first transmission mechanism 4 and a second transmission mechanism 5; the power mechanism 3 can drive the cover plate 1 to move outwards from a closing position (shown in fig. 13) for closing the external opening to a first preset position through the first transmission mechanism 4, namely the cover plate 1 translates outwards for a certain distance to reach the first preset position; the power mechanism 3 is further capable of driving the cover plate 1 to translate from the first preset position in a preset direction to a second preset position (as shown in fig. 14) that opens the external opening 22 by the second transmission mechanism 5. The first preset position is positioned at one side, close to the outside of the vehicle, of the closing position of the cover plate 1 for closing the external opening, corresponds to the closing position in the direction perpendicular to the cover plate 1, and is positioned at the outer side of the outer surface of the side wall sheet metal. The second preset position is a position where the cover plate 1 is moved to a charging port or a fuel filler opening position where charging or fuel filling operation can be performed. The power mechanism 3 can drive the cover plate 1 to move outwards from a closing position for closing the external opening to a first preset position through the first transmission mechanism 4, and preferably moves linearly, so that the running stability of the cover plate 1 is improved. Other non-linear movements can also effect the opening of the charging or filler opening of the present utility model.

The sliding mechanism 6 is connected to the inner side of the cover plate 1, and the sliding mechanism 7 is fixed on the first transmission mechanism 4 and is in sliding fit with the sliding mechanism 6 along the preset direction, so that the cover plate 2 slides relative to the sliding mechanism 7 along the preset direction in the process of translating from the first preset position to the second preset position of the cover plate 1. 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 sliding rail mechanism 5 and the sliding mechanism 7, and the rigidity and the strength of the cover plate 1 are greatly improved.

Preferably, the preset direction is a direction parallel to the cover plate. I.e. the sliding plane of the cover plate 1 is parallel to the inner and outer direction. For example, when the door cover structure is arranged at a side wall of the vehicle, the preset direction may be a front-rear direction or an up-down direction. For another example, when the door cover structure is disposed on the front face of the vehicle, the preset direction may be a left-right direction or an up-down direction. For another example, when the door cover structure is disposed at the rear of the vehicle, the preset direction may be a left-right direction or an up-down direction.

Referring to fig. 8, the slide rail mechanism 6 includes a first slide rail 61 and a second slide rail 62, the slide mechanism 7 includes a third slide rail 71 and a stopper 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 stopper 72 by gluing or the like, a ball 63 is disposed between the first slide rail 61 and the third slide rail 71, a ball hole 621 for accommodating the ball 63 is disposed on the second slide rail 62, and the ball 63 protrudes out of the ball hole 621 and is in rolling contact with the first slide rail 61 and the third slide rail 71. The first sliding rail 61 and the cover plate 1 slide together relative to the third sliding rail 71, the second sliding rail 62 moves along with the first sliding rail 61, and the balls 63 roll in the ball holes 621, so that the sliding stability and smoothness of the cover plate 1 are enhanced.

A plurality of ball holes 621 are formed on both sides of the second slide rail 62 in the width direction and arranged along the length direction of the second slide rail 62, and correspondingly, two rows of balls 63 are formed along the length direction of the second slide rail 62, and each ball hole 621 is provided with a ball 63 therein.

Referring to fig. 8, the cover plate 1 is provided at an inner side thereof with an outwardly concave installation space 11, and the first slide rail 61 is substantially U-shaped and is interference-fitted in the installation space 11. The second slide rail 62 is kept in linkage with the first slide rail 61 by means of the balls 63. The first slide rail 61 has a groove 611 formed at both sides in the width direction thereof for receiving and holding the balls 63 to prevent the balls 63 from falling off, and the groove 611 extends along the length direction of the first slide rail 61. The third slide rail 71 is provided on both sides in the width direction with a convex plate 711 protruding toward the cover plate 1 and extending in the length direction of the third slide rail 71, and the balls 63 are supported between the bottom wall of the groove 611 and the convex plate 711.

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 the reinforcing effect can be exerted on the cover plate 1. The cover plate 1 is opened in a sliding way along a preset direction, the movement of the cover plate 1 only moves in an inner-outer direction and slides and translates in the preset direction, and the cover plate 1 does not have rotary movement and does not need a rotary space in the opening and closing process.

Referring to fig. 5 and 11, a guiding groove 231 for guiding the movement of the stopper 72 is provided in the concave space 23 of the mouthpiece 2, and the stopper 72 always has a portion accommodated in the guiding groove 231 during the process of translating the cover 1 from the first preset position to the second preset position. That is, the guide groove 231 always provides the movement guide of the stopper 72 during the movement of the cover plate 1.

Referring to fig. 9, the first transmission mechanism 4 includes a first driving rod 41, a crank 42, a universal rod 43, and a push rod 44, where the power mechanism 3 has a first output shaft, the first driving rod 41 is coaxially connected with the first output shaft or is integrally formed, one end of the crank 42 is connected with the first driving rod 41, one end of the universal rod 43 is connected with the other end of the crank 42 in a ball joint manner, the other end of the universal rod 43 is connected with one end of the push rod 44 in a ball joint manner, and the other end of the push rod 44 is fixed on the sliding mechanism 7, specifically, the other end of the push rod 44 is fixed on the limiting block 72; the first driving rod 41 is perpendicular to the crank 42, the first driving rod 41 is parallel to and spaced from the ejector rod 44, and the first driving rod 41 rotates to drive the crank 42 to rotate, so that the universal rod 43 drives the sliding mechanism 7 and the cover plate 2 to move along the inner and outer directions. That is, the first driving rod 41 is eccentrically disposed with respect to the push rod 44, so that when the crank 42 rotates (performs a circular motion on the mounting surface of the mouth box 2), the push rod 44 and the sliding mechanism 7 can be driven to reciprocate in the inner and outer directions by the universal rod 43, thereby driving the cover plate 1 to reciprocate in the inner and outer directions between the closed position and the first preset position.

Referring to fig. 11 and 12, the power mechanism 3 is disposed behind the mouth box 2, the first driving rod 41 passes through the mouth box 2, and the crank 42, the universal rod 43 and the push rod 44 are located in the concave space 23 of the mouth box 2.

Referring to fig. 3 and 9, the second transmission mechanism 5 includes a second driving rod 51, a power converter 52, a telescopic rod 53 and a gear 54, the power mechanism 3 has a second output shaft, one end of the second driving rod 51 is connected to the second output shaft, the other end of the second driving rod 51 is connected to the power converter 52, the telescopic rod 53 is nested with the power converter 52, and the gear 54 is connected to an end of the telescopic rod 53 far from the power converter 52; the power converter 52 is configured to convert a rotational motion of the second driving lever 51 into a telescopic motion of the telescopic lever 53; the inner side of the cover plate 1 is provided with a rack 12 extending along the preset direction and meshed with the gear 54, the second output shaft of the power mechanism 3 rotates to drive the second driving rod 51 to rotate, so that the power converter 52 drives the telescopic rod 53 to stretch and retract relative to the power converter 52, and the displacement of the cover plate 1 from the closed position to the first preset position is matched, so that the gear 54 and the rack 12 are kept in constant mesh. That is, the gear 54 needs to be kept in synchronization with the cover plate 1 when the cover plate 1 moves in the inward and outward directions. The rack 12 is disposed inside the reinforcing plate 14.

The power converter 52 includes an outer cylinder 521, a rotating shaft (not shown in the figure) and a sliding body (not shown in the figure), the rotating shaft is disposed in the outer cylinder 521, the other end of the second driving rod 51 is connected to one end of the rotating shaft, the other end of the rotating shaft is connected to the sliding body, the telescopic rod 53 is inserted into the outer cylinder 521, the telescopic rod 53 is a hollow shaft, a spiral groove spirally lifting along the axial direction of the telescopic rod 53 is disposed on an inner hole wall of the telescopic rod 53, and the sliding body is slidably disposed in the spiral groove; the second output shaft of the power mechanism 3 rotates to drive the second driving rod 51, the rotating shaft and the sliding body to rotate, so that the sliding body slides relative to the spiral groove to drive the telescopic rod 53 to stretch relative to the outer cylinder 521.

The second driving lever 51 and the rotation shaft may be integrally formed.

Referring to fig. 11 and 12, the second driving rod 51 and the power converter 52 are disposed at the rear of the mouthpiece 2, the telescopic rod 53 passes through the mouthpiece 2, and the gear 54 is located in the concave space 23 of the mouthpiece 2.

The driving device further comprises a mounting seat (not shown in the figure), the first transmission mechanism 4 and the second transmission mechanism 5 are arranged in the mounting seat, the mounting seat is positioned at the rear of the mouth box 2, the first transmission mechanism 4 is provided with a first power output end (namely, a push rod 44), the second transmission mechanism 5 is provided with a second power output end (namely, a gear 54), the first power output end is connected with the sliding mechanism 6, and the second power output end is connected with the cover plate 1 (namely, the gear 54 is meshed with the rack 12).

The power mechanism 3 is a motor having a first output shaft and a second output shaft.

Of course, other components may be substituted for the motor, such as a combination of a linear actuator and a direction converter. The linear actuators, such as pneumatic cylinders, hydraulic cylinders, and the direction converter may be a rack and pinion. The linear actuator drives the rack to move, so as to drive the gear to rotate.

Referring to fig. 1, the cover plate 1 includes 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 has a decorative effect with a smooth outer surface.

Referring to fig. 2 and 4, the inner side surface of the outer cover 13 is provided with a first buckle 131, and a first clamping groove 141 is provided on the outer side surface of the reinforcing plate 14 at a position corresponding to the first buckle 131, and the first buckle 131 is clamped in the first clamping groove 141, so that the outer cover 13 is fixedly mounted on the reinforcing plate 14.

Referring to fig. 3 and 4, the inner edge of the reinforcing plate 14 is provided with a reinforcing plate lip 142 surrounding a circle, the edge of the outer opening 22 is provided with a lip groove 24, and in the closed position of the cover plate 1, 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, forming a sealed space between the cover plate 1 and the mouth box 2. Realize the waterproof sealing of apron structure, avoid impurity such as water, dust to enter into in the mouth box 2.

Referring to fig. 5, the seal ring 8 is press fitted into the inner opening 31. The shape of the sealing ring 8 is matched with the charging seat or the oil filling pipe.

The mouthpiece 2 is provided with an annular flange 25 around the outer opening 32, and a plurality of thinning grooves 251 are provided on the outer side surface of the annular flange 25 such 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 effect of the thinning groove 251 is that the door cover structure is destroyed to open the cover plate for oiling or charging under the condition that the side wall metal plate is not destroyed in an emergency state.

A buffer block 252 is provided on the outer side of the annular flange 25 on the side remote from the first transmission mechanism 6. The buffer block 252 is used for preventing the cover plate 1 from collapsing at a position far away from the first transmission mechanism 6 in a static state, and plays a role in ensuring the surface difference of the appearance gap. In fig. 5, two buffer blocks 252 are provided at intervals.

Referring to fig. 6, a second buckle is provided at the inner edge of the mouth box 2, and is clamped with a second clamping groove on the metal plate (for example, a side wall metal plate) of the vehicle body, so as to fix the mouth box 2 on the metal plate of the vehicle body.

Referring to fig. 6 and 12, a third clamping groove 27 and a fourth clamping groove 28 are further provided on the inner side of the mouth box 2, and the third clamping groove 27 is used for clamping the power mechanism 3 so as to fix the power mechanism on the mouth box 2. The fourth clamping groove 28 is used for clamping the power converter 52 so as to fix the outer cylinder 521 of the power converter 52 on the mouth box 2.

Compared with the prior art, the door cover structure of the embodiment of the utility model does not adopt a cover plate rotating and opening mode, and does not need to arrange a cantilever, when the cover plate 1 is opened to the maximum state, the door cover structure is supported by the first transmission mechanism 4 and the second transmission mechanism 5, does not have rotating trend, and has better vertical rigidity.

In the prior art, the cover plate is manually opened, and experience is poor. According to the door cover structure provided by the embodiment of the utility model, the cover plate 1 can be automatically opened and closed without manual operation, so that experience and technological sense are enhanced.

In the prior art, the cantilever arrangement space is large, so that the whole structure of the door cover structure is large. According to the door cover structure provided by the embodiment of the utility model, the rotating radial arm is not arranged any more, so that the installation space occupied by the cantilever in the prior art can be reduced, and the volume of the door cover structure is reduced.

In addition, the slide rail mechanism 7 is embedded in the installation space 11 of the reinforcing plate 14, and the anti-dent strength of the cover plate 1 is improved in a static state. For example, when the door closure structure is installed on the side wall panel beating, can promote the anti concave intensity of side wall panel beating.

The door cover structure of the embodiment has the following working principle:

In the closed state of the cover plate 1, an electric signal is sent to the power mechanism 3 through the operation of a person, the first output shaft of the power mechanism 3 rotates to drive the first driving rod 41 and the crank 42 to rotate, the rotation motion of the crank is converted into the outward motion of the ejector rod 44 through the universal rod 43, the sliding mechanism 7, the sliding rail mechanism 6 and the cover plate 1 are driven to move outwards together, meanwhile, the second output shaft of the power mechanism 3 rotates to drive the second driving rod 51 to rotate, and then the telescopic rod 53 is driven to move outwards (the telescopic rod 53 rotates and moves outwards) through the power converter 52, so that the gear 54 is always meshed with the rack 12 on the reinforcing plate 14. In this way, the cover plate 1 is moved from the closed position to the first preset position away from the outer opening 22 of the open box 2. Then, the first output shaft of the power mechanism 3 is controlled to not output power, the second output shaft of the power mechanism 3 rotates to drive the second driving rod 51 to rotate, the telescopic rod 53 is not moved outwards due to the fact that the telescopic rod 53 is at the maximum extension position, the telescopic rod 53 is driven to rotate around the axis of the telescopic rod 53 through the power converter 52, the cover plate 1 slides along the preset direction through meshing of the gear 54 and the rack 12, the outer opening 22 is gradually opened until the outer opening 22 is opened to the maximum state, and the second output shaft of the power mechanism 3 stops rotating. After the oiling or charging is finished, the second output shaft of the power mechanism 3 rotates in the opposite direction, so that the gear 43 is driven to rotate in the opposite direction through the power converter 52 and the telescopic rod 53, the cover plate 1 is driven to slide in the opposite direction, and after the cover plate 1 returns to the first preset position, the first output shaft of the power mechanism 3 also rotates in the opposite direction, and the sliding mechanism 7, the sliding rail mechanism 6 and the cover plate 1 are driven to move inwards until the cover plate 1 returns to the closed state.

Second embodiment

Fig. 15 to 38 show a door cover structure according to a second embodiment of the present utility model, which is different from the first embodiment mainly in the driving device.

In this embodiment, referring to fig. 15 and fig. 32-35, the driving device includes a first transmission mechanism 4, a second transmission mechanism 5 and a mounting seat 9, where the first transmission mechanism 4 and the second transmission mechanism 5 are disposed in the mounting seat 9, the mounting seat 9 is located at the rear of the mouth box 2, the first transmission mechanism 4 has a first power output end, the second transmission mechanism 5 has a second power output end, the first power output end is connected with the sliding mechanism 7, and the second power output end is connected with the cover plate 1.

Specifically, 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, and one end of the fixed shaft 45 extending out of the first gear shaft 46 is fixed on the mounting seat 9; one end of the first gear shaft 46 extending out of the mounting seat 9 forms the first power output end; the second transmission mechanism 5 comprises 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, and one end of the rotating shaft 55 extending out of the second gear shaft 56 is rotatably connected to the mounting seat 9. The driving device further comprises a synchronous gear mechanism 10 arranged in the mounting seat 9, the power mechanism 3 is provided with a first output shaft, and the rotation of the first output shaft of the power mechanism 3 drives the first gear shaft 46 and the second gear shaft 56 to move along the inner and outer directions through the synchronous gear mechanism 10.

The synchronous gear mechanism 10 comprises a first gear 101, a second gear 102, a third gear 103, a fourth gear 104 and a gear shaft 105, wherein the gear shaft 105 is rotatably connected to the mounting seat 9, the first gear 101 is connected to a 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; the first gear shaft 46 is provided with a first rack structure 461 extending in the axial direction thereof and meshing with the third gear 103, and the second gear shaft 56 is provided with a second rack structure 561 extending in the axial direction thereof and meshing with the fourth gear 104.

A row of first tooth-shaped holes 462 are arranged on the peripheral wall of the first gear shaft 46 along the axial direction of the first gear shaft, and the row of first tooth-shaped holes 462 form the first rack structure 461; a row of second tooth-shaped holes 562 are provided in the outer circumferential wall of the second gear shaft 56 in the axial direction thereof, and the row of second tooth-shaped holes 562 constitute the second rack structure 561. The third gear 103 rotates to drive the first gear shaft 46 to move in and out, and the fourth gear 104 rotates to drive the second gear shaft 56 to move in and out.

One end of the second gear shaft 56, which is close to the cover plate 1, is provided with a gear 54 forming the second power output end, and the inner side of the cover plate 1 is provided with a rack 12 which extends along the preset direction and is meshed with the gear 54; the second transmission mechanism 5 further includes a reversing gear set, and the second gear shaft 56 and the rotating shaft 55 are limited in circumferential rotation, that is, the second gear shaft 56 can move inside and outside the rotating shaft 55 but cannot rotate relative to the rotating shaft 55. The power mechanism 3 has a second output shaft, and the rotation of the second output shaft of the power mechanism 3 drives the rotation shaft 55, the second gear shaft 56 and the gear 54 to integrally rotate through the reversing gear set.

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 rotation shaft 55 and is engaged with the first bevel gear 57 orthogonally.

The second embodiment also differs from the first embodiment in that the second slide rail 62 is flexibly connected to the cover plate 1. The ball 63 is ensured not to be jammed when rolling.

Referring to fig. 20, 29 and 31, 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 inner and outer directions, one end of the spring 64 is fixed on the second slide rail 62, and the other end of the spring 64 penetrates through the through hole 610 and is fixedly connected with 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 on 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.

Referring to fig. 31, the 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 one side of the supporting portion 713 away from the connecting portion 712, wherein the connecting portion 712, the bending portion 714 and the stopper 72 are bonded and fixed by gluing or the like. The support 713 is spaced from the stopper 72. The bent portion 714 is provided with a guide groove 7141 recessed toward the center of the stopper 72. The first slide rail 61 includes a main body 612, ball supporting portions 613 connected to two sides of the main body 612 in the width direction, and a hook portion 614 connected to one side of the ball supporting portions 613 away from the main body 612, wherein the main body 612 and the ball supporting portions 613 are spaced from the second slide rail 62, the hook portion 614 extends from an opening of the installation space 11 and bends toward the bending portion 714, the hook portion 614 is slidably inserted into the guide groove 7141, and 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 balls 63 are supported between the ball support portion 612 and the support portion 713.

The hook 614 is pressed against the inner wall of the opening of the installation space 11 to fix the first slide rail 61 to the inner side of the reinforcing plate 14.

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

Referring to fig. 23, 24, 31 and 34, a receiving groove 721 is provided in the stopper 72, the first gear shaft 46 has a columnar head 463, the outer diameter of the head 463 is larger than the diameter of the 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 stopper 72 are easy to be assembled and disassembled. The notch grooves 722 are formed in the two opposite sides of the limiting block 72, and the bending portions 714 are embedded into the notch grooves 722, so that space occupation of the bending portions 714 can be reduced, and the sliding mechanism 7 is more compact in structure.

Third embodiment (not shown)

The third embodiment provides a door cover structure that is different from the first embodiment in that the slide rail mechanism is different.

Specifically, the sliding mechanism comprises a sliding block, a sliding groove is formed in the inner side of the cover plate, and the sliding block can slide in the sliding groove.

The sliding block and the sliding groove are matched to slide relative to the first embodiment, and parts are reduced.

Preferably, the chute is a straight chute to improve the stability of the movement of the cover plate 1.

The door cover structure of the embodiment has the following working principle:

In the closed state of the cover plate 1, an electric signal is sent to the power mechanism 3 through the operation of a person, the first output shaft of the power mechanism 3 rotates, the first gear shaft 46 and the second gear shaft 56 are driven to move outwards through the synchronous gear mechanism 10, the sliding mechanism 7, the sliding rail mechanism 6 and the cover plate 1 are driven to move outwards together, and the gear 54 is always meshed with the rack 12 on the reinforcing plate 14. In this way, the cover plate 1 is moved from the closed position to the first preset position away from the outer opening 22 of the open box 2. Then, the first output shaft of the power mechanism 3 is controlled to not output power, the second output shaft of the power mechanism 3 rotates to drive the first bevel gear 57 to rotate, 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 the cover plate 1 slides along the preset direction through the meshing of the gear 54 and the rack 12, the external opening 22 is gradually opened until the external opening 22 is opened to the maximum state, and the second output shaft of the power mechanism 3 stops rotating. After the oiling or charging is completed, the second output shaft of the power mechanism 3 rotates reversely, so that the gear 43 is driven to reversely rotate through the first bevel gear 57, the second bevel gear 58, the rotating shaft 55 and the second gear shaft 56, the cover plate 1 is driven to reversely slide, the second output shaft of the power mechanism 3 is controlled to not output power after the cover plate 1 returns to the first preset position, the first output shaft of the power mechanism 3 reversely rotates, the first gear shaft 46 and the second gear shaft 56 are driven to move inwards through the synchronous gear mechanism 10, and the sliding mechanism 7, the sliding rail mechanism 6, the cover plate 1 and the gear 54 are driven to move inwards until the cover plate 1 returns to the closed state.

Fourth embodiment (not shown)

The third embodiment provides a door cover structure that is different from the first embodiment in that the slide rail mechanism is different.

Specifically, the sliding mechanism comprises a sliding block, a sliding rail 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.

The sliding block and the sliding rail are matched to slide relative to the first embodiment, and parts are reduced.

Preferably, the sliding rail is a linear sliding rail, so as to improve the stability of the movement of the cover plate 1.

Fifth embodiment (not shown)

The fifth embodiment provides a door cover structure that is different from the second embodiment in that the slide rail mechanism is different.

Specifically, the sliding mechanism comprises a sliding block, a sliding groove is formed in the inner side of the cover plate, and the sliding block can slide in the sliding groove.

The sliding block and the sliding groove are matched to slide relative to the second embodiment, and parts are reduced.

Sixth embodiment (not shown)

The sixth embodiment provides a door cover structure that is different from the second embodiment in that the slide rail mechanism is different.

Specifically, the sliding mechanism comprises a sliding block, a sliding rail 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.

Compared with the second embodiment, the sliding block and the sliding rail are matched to slide, and parts are reduced.

Seventh embodiment (not shown)

The seventh embodiment provides a door cover structure that is different from the first embodiment in that the slide rail mechanism is different.

Specifically, slide rail mechanism includes first slide rail, first slide rail fixed connection is in the inboard of apron, be provided with the ball between first slide rail and the apron, be provided with on the first slide rail and hold the ball hole of ball, the ball protrusion in the ball hole and with slide mechanism rolling contact.

The number of parts is reduced relative to the first embodiment with only one rail.

Eighth embodiment (not shown)

The eighth embodiment provides a door cover structure, which is different from the second embodiment in that the slide rail mechanism is different.

Specifically, slide rail mechanism includes first slide rail, first slide rail fixed connection is in the inboard of apron, be provided with the ball between first slide rail and the apron, be provided with on the first slide rail and hold the ball hole of ball, the ball protrusion in the ball hole and with slide mechanism rolling contact.

The number of parts is reduced relative to the first embodiment with only one rail.

Ninth embodiment (not shown)

The ninth embodiment provides a door cover structure different from the first embodiment in the slide rail mechanism.

Specifically, slide rail mechanism includes first slide rail and second slide rail, first slide rail fixed connection is in the inboard of apron, be provided with the ball between first slide rail and the second slide rail, be provided with on the second slide rail and hold the ball hole of ball, the ball protrusion in the ball hole and with slide mechanism and first slide rail rolling contact.

The third slide rail is reduced relative to the first embodiment.

Tenth embodiment (not shown)

The tenth embodiment provides a door cover structure that is different from the second embodiment in that the slide rail mechanism is different.

Specifically, slide rail mechanism includes first slide rail and second slide rail, first slide rail fixed connection is in the inboard of apron, be provided with the ball between first slide rail and the second slide rail, be provided with on the second slide rail and hold the ball hole of ball, the ball protrusion in the ball hole and with slide mechanism and first slide rail rolling contact.

The third slide rail is reduced relative to the second embodiment.

Eleventh embodiment (not shown)

The eleventh embodiment provides a door cover structure different from the first embodiment in that the power mechanism is divided into two independent parts.

Specifically, the power mechanism comprises a first power source and a second power source; the first power source can drive the cover plate to move outwards from a closing position for closing the external opening to a first preset position through the first transmission mechanism; the second power source can drive the cover plate to translate from the first preset position to a second preset position for opening the external opening along a preset direction through the second transmission mechanism.

The first transmission mechanism and the second transmission mechanism are driven by two independent power sources respectively, so that the control is simpler, and the first transmission mechanism and the second transmission mechanism can be mutually independent, so that the mutual influence of the first transmission mechanism and the second transmission mechanism is avoided. The number of parts of the first transmission mechanism and the second transmission mechanism can be reduced, so that the structures of the first transmission mechanism and the second transmission mechanism are simplified.

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

Of course, other components may be substituted for the motor, such as a combination of a linear actuator and a direction converter. The linear actuators, such as pneumatic cylinders, hydraulic cylinders, and the direction converter may be a rack and pinion. The linear actuator drives the rack to move, so as to drive the gear to rotate.

In addition, the embodiment of the utility model also provides a fuel filler structure, which comprises a fuel filler pipe and the door cover structure of any embodiment, wherein one end of the fuel filler pipe is connected with the internal opening 21, and the other end of the fuel filler pipe is used for being connected with a fuel tank.

The seal ring 8 is used to seal a gap between one end of the filler tube and the inner wall surface of the internal opening 21.

In addition, the embodiment of the utility model also provides a charging port structure, which comprises a charging seat and the door cover structure of any embodiment, wherein the charging seat is connected at the inner opening 32 and is used for externally connecting a charging gun.

The gasket 8 is used for a gap between the outer periphery of the charging stand and the inner wall surface of the internal opening 21.

In addition, the embodiment of the utility model also provides a vehicle, which comprises the door cover structure, the oil filler structure or the charging port structure of the embodiment.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (33)

1. The door cover structure is characterized by comprising a cover plate, a mouth box and a driving device, wherein the mouth box is provided with an inner opening and an outer opening which are mutually spaced in the inner-outer direction, and the driving device comprises a power mechanism, a first transmission mechanism and a second transmission mechanism;

The power mechanism can drive the cover plate to move outwards from a closing position for closing the external opening to a first preset position through the first transmission mechanism;

The power mechanism can drive the cover plate to translate from the first preset position to a second preset position for opening the external opening along a preset direction through the second transmission mechanism.

2. The door cover structure according to claim 1, further comprising a slide rail mechanism and a sliding mechanism, wherein the slide rail mechanism is connected to an inner side of the cover plate, and the sliding mechanism is fixed on the first transmission mechanism and is in sliding fit with the slide rail mechanism along the preset direction, so that the cover plate slides along the preset direction relative to the sliding mechanism in the process of translating from the first preset position to the second preset position.

3. The door cover structure according to claim 1, wherein the predetermined direction is a direction parallel to the cover plate.

4. The door cover structure according to claim 3, wherein the predetermined direction is a front-rear direction, an up-down direction, or a left-right direction.

5. The door cover structure according to claim 2, wherein the sliding mechanism includes a slider, a slide groove is provided on an inner side of the cover plate, and the slider is slidable in the slide groove;

Or alternatively

The sliding mechanism comprises a sliding block, a sliding rail 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.

6. The door cover structure according to claim 2, wherein the slide rail mechanism includes a first slide rail fixedly connected to an inner side of the cover plate, a ball is provided between the first slide rail and the cover plate, a ball hole for accommodating the ball is provided on the first slide rail, and the ball protrudes out of the ball hole and is in rolling contact with the slide mechanism.

7. The door cover structure according to claim 2, wherein the slide rail mechanism comprises 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, and the ball protrudes out of the ball hole and is in rolling contact with the slide mechanism and the first slide rail.

8. The door cover structure according to claim 2, wherein the sliding rail mechanism comprises a first sliding rail and a second sliding rail, the sliding mechanism comprises a third sliding rail and a limiting block, the first sliding rail is fixedly connected to the inner side of the cover plate, the third sliding rail is fixed to the limiting block, a ball is arranged between the first sliding rail and the third sliding rail, a ball hole for accommodating the ball is arranged on the second sliding rail, and the ball protrudes out of the ball hole and is in rolling contact with the first sliding rail and the third sliding rail.

9. The door cover structure according to claim 8, wherein a guiding groove for guiding movement of the stopper is provided in the concave space of the mouth box, and the stopper always has a portion accommodated in the guiding groove during translation of the cover plate from the first preset position to the second preset position.

10. The door cover structure according to claim 8 or 9, wherein the second slide rail is flexibly connected to the cover plate.

11. The door cover structure according to claim 10, wherein the second slide rail is connected to the cover plate by a spring;

The first sliding rail is provided with a through hole penetrating along the inner and outer directions, one end of the spring is fixed on the second sliding rail, and the other end of the spring penetrates through the through hole and is fixedly connected with the cover plate.

12. The door cover structure according to claim 2, wherein the first transmission mechanism comprises a first driving rod, a crank, a universal rod and a push rod, the power mechanism is provided with a first output shaft, the first driving rod is coaxially connected with the first output shaft or integrally formed, one end of the crank is connected with the first driving rod, one end of the universal rod is connected with the other end of the crank in a spherical hinge manner, the other end of the universal rod is connected with one end of the push rod in a spherical hinge manner, and the other end of the push rod is fixed on the sliding mechanism; the first driving rod is perpendicular to the crank, and is parallel to and spaced from the ejector rod;

The first driving rod rotates to drive the crank to rotate, so that the universal rod drives the sliding mechanism and the cover plate to move along the inner and outer directions.

13. The door cover structure according to claim 12, wherein the power mechanism is disposed behind the mouth box, the first driving rod passes through the mouth box, and the crank, the universal rod and the ejector rod are located in a concave space of the mouth box.

14. The door cover structure according to claim 2, wherein the second transmission mechanism comprises a second driving rod, a power converter, a telescopic rod and a gear, the power mechanism is provided with a second output shaft, one end of the second driving rod is connected with the second output shaft, the other end of the second driving rod is connected with the power converter, the telescopic rod is nested with the power converter, and the gear is connected with one end of the telescopic rod, which is far away from the power converter; the power converter is used for converting the rotary motion of the second driving rod into the telescopic motion of the telescopic rod;

The inner side of the cover plate is provided with a rack which extends along the preset direction and is meshed with the gear, the second output shaft of the power mechanism rotates to drive the second driving rod to rotate, so that the power converter drives the telescopic rod to stretch and retract relative to the power converter, displacement of the cover plate from the closing position to the first preset position is matched, and normal meshing of the gear and the rack is further maintained.

15. The door cover structure according to claim 14, wherein the power converter comprises an outer cylinder, a rotating shaft and a sliding body, the rotating shaft is arranged in the outer cylinder, the other end of the second driving rod is connected with one end of the rotating shaft, the other end of the rotating shaft is connected with the sliding body, the telescopic rod is inserted in the outer cylinder, the telescopic rod is a hollow shaft, a spiral groove spirally rising along the axial direction of the telescopic rod is arranged on the inner hole wall of the telescopic rod, and the sliding body is slidably arranged in the spiral groove;

the second output shaft of the power mechanism rotates to drive the second driving rod, the rotating shaft and the sliding body to rotate, so that the sliding body slides relative to the spiral groove to drive the telescopic rod to stretch relative to the outer cylinder.

16. The door cover structure according to claim 14, wherein the second driving lever, the power converter and the power mechanism are disposed behind the mouth box, the telescopic lever passes through the mouth box, and the gear is located in a concave space of the mouth box.

17. The door cover structure according to claim 2, wherein the driving device further comprises a mounting seat, the first transmission mechanism and the second transmission mechanism are arranged in the mounting seat, the mounting seat is located at the rear of the mouth box, the first transmission mechanism is provided with a first power output end, the second transmission mechanism is provided with a second power output end, the first power output end is connected with the sliding mechanism, and the second power output end is connected with the cover plate.

18. The door cover structure according to claim 17, wherein the first transmission mechanism comprises a fixed shaft and a first gear shaft, the first gear shaft is a hollow shaft and is sleeved outside the fixed shaft, and one end of the fixed shaft extending out of the first gear shaft is fixed on the mounting seat; one end of the first gear shaft extending out of the mounting seat forms the first power output end;

the second transmission mechanism comprises a rotating shaft and a second gear shaft, the second gear shaft is a hollow shaft and is sleeved outside the rotating shaft, and one end of the rotating shaft extending out of the second gear shaft is rotationally connected to the mounting seat;

The driving device further comprises a synchronous gear mechanism arranged in the mounting seat, the power mechanism is provided with a first output shaft, and the first output shaft of the power mechanism rotates to drive the first gear shaft and the second gear shaft to move along the inner and outer directions through the synchronous gear mechanism.

19. The door cover structure according to claim 18, wherein the synchronizing gear 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 base, the first gear is connected to the first output shaft of the power mechanism, the second gear, the third gear, and the fourth gear are disposed on the gear shaft, and the first gear is meshed with the second gear;

The outer circumferential wall of the first gear shaft is provided with a first rack structure which extends along the axial direction and is meshed with the third gear, and the outer circumferential wall of the second gear shaft is provided with a second rack structure which extends along the axial direction and is meshed with the fourth gear.

20. The door cover structure according to claim 19, wherein a row of first tooth-shaped holes are provided in an outer peripheral wall of the first tooth shaft along an axial direction thereof, the row of first tooth-shaped holes constituting the first rack structure;

and/or the number of the groups of groups,

And a row of second tooth-shaped holes are formed in the peripheral wall of the second gear shaft along the axial direction of the second gear shaft, and the row of second tooth-shaped holes form the second rack structure.

21. The door cover structure according to claim 18, wherein one end of the second gear shaft, which is close to the cover plate, is provided with a gear constituting the second power output end, and a rack extending in the preset direction and engaged with the gear is provided on the inner side of the cover plate;

The second transmission mechanism further comprises a reversing gear set, the circumferential rotation of the second gear shaft and the rotating shaft is limited, the power mechanism is provided with a second output shaft, and the rotation of the second output shaft of the power mechanism drives the rotating shaft, the second gear shaft and the gear to integrally rotate through the reversing gear set.

22. The door cover structure of claim 21, wherein the reversing gear set includes a first bevel gear coupled to the second output shaft of the power mechanism and a second bevel gear disposed on the rotating shaft and in orthogonal engagement with the first bevel gear.

23. The door cover structure of claim 1, wherein the power mechanism comprises a first power source and a second power source;

The first power source can drive the cover plate to move outwards from a closing position for closing the external opening to a first preset position through the first transmission mechanism;

the second power source can drive the cover plate to translate from the first preset position to a second preset position for opening the external opening along a preset direction through the second transmission mechanism.

24. The door cover structure of claim 23, wherein the first power source is a first motor and the second power source is a second motor.

25. The door cover structure of claim 1, wherein the power mechanism is a motor having a first output shaft and a second output shaft.

26. The door cover structure according to claim 2, wherein the cover plate includes an outer cover and a reinforcing plate attached to an inner side of the outer cover, and the slide rail mechanism is attached to an inner side of the reinforcing plate.

27. The door closure structure of claim 26, wherein an inside edge of the reinforcement panel is provided with a surrounding reinforcement panel lip, and a lip groove is provided at an edge of the outer opening, the reinforcement panel lip being received in the lip groove in a closed position of the cover panel to seal a gap between the cover panel and the mouth box.

28. The door cover structure according to claim 1, wherein a gasket is press fitted into the inner opening.

29. The door cover structure according to claim 1, wherein the mouth box is provided with an annular flange around the outer opening, and a plurality of thinning grooves are provided on an outer side surface of the annular flange so that a thickness of the annular flange at the thinning grooves is smaller than a thickness at other positions of the annular flange.

30. The door cover structure according to claim 1, wherein the mouth box is provided with an annular flange around the outer opening, and a buffer block is provided on an outer side surface of the annular flange on a side away from the first transmission mechanism.

31. A filler neck structure comprising a filler neck and the door closure structure of any one of claims 1-30, wherein one end of the filler neck is connected to the interior opening, and the other end of the filler neck is adapted to be connected to a fuel tank.

32. A charging port structure comprising a charging stand and the door cover structure of any one of claims 1-30, wherein the charging stand is connected to the inner opening.

33. A vehicle comprising the door cover structure of any one of claims 1-30, the fuel filler structure of claim 31, or the charging port structure of claim 32.