Charging port cover structure of heavy truck

Abstract

A heavy truck charging port cover structure comprises a lining mechanism used for installing a charging port and a cover plate used for covering and protecting the charging port, a driving mechanism used for opening the cover plate in a translation type lateral moving mode is arranged between the lining mechanism and the cover plate, and the driving mechanism comprises a driving motor, a driving connecting rod and a driving rotating shaft; a driving gear is fixedly arranged at the output end of the driving motor, and a driven gear meshed with the driving gear to rotate is fixedly arranged on the driving rotating shaft; the other end of the driving connecting rod is hinged to the bottom of the cover plate; an opening position limiting switch and a closing position limiting switch which are used for closing the driving motor are arranged on the periphery of the rotating track of the driving gear, and the driving gear is provided with an extending part used for abutting against the opening position limiting switch or the closing position limiting switch. The extension part of the driving gear abuts against the opening position limiting switch or the closing position limiting switch, the driving motor is shut down, overload of the driving motor is prevented, and the product reliability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a charging port cover structure for heavy trucks. Background Art

[0002] With the development of automobile electrification, the automatic opening and closing of the charging port cover has become a trend for electric vehicles. Similarly, heavy truck users will have an increasing demand for vehicle charging automation. At present, the charging port covers of heavy trucks generally adopt traditional single-axis hinge structures, gooseneck structures, and reed structures, relying on manual operation and having a low degree of automation. When the flip charging port cover is opened, it occupies part of the external space of the vehicle and is more likely to be damaged by impact.

[0003] In the related art, an automatic opening and closing cover mechanism disclosed in CN113073917A improves the port cover structure of an automobile. By realizing the translational side shift opening of the cover plate, the possibility of dust entering the cover port is greatly reduced, and the automation of the opening and closing actions of the port cover can be realized.

[0004] Although the above-mentioned prior art solution improves the automation of the opening and closing of the automobile charging port cover and changes the situation that the fuel filling or charging port cover of the traditional port cover basically must be manually opened and closed. However, when the output shaft of the driving motor controls the opening or closing of the cover plate by forward rotation or reverse rotation, due to the limited rotation accuracy of the driving motor, in order to make the opening and closing states of the cover plate in place, a certain rotation amplitude is usually reserved. When the cover plate has been opened or closed in place, the output shaft of the motor will still rotate a certain angle slightly, which causes the motor to be overloaded and affects the service life of the driving motor. Summary of the Utility Model

[0005] To solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A charging port cover structure for heavy trucks includes a lining mechanism for installing a charging port and a cover plate for covering and protecting the charging port. A driving mechanism for translating and laterally shifting the cover plate mechanism to open is provided between the lining mechanism and the cover plate mechanism. The driving mechanism includes a driving motor, a driving connecting rod, and a driving rotating shaft. A driving gear is fixedly provided at the output end of the driving motor, and a driven gear meshing and rotating with the driving gear is fixedly provided on the driving rotating shaft. One end of the driving connecting rod is fixedly connected to the driving rotating shaft, and the other end is hinged to the bottom of the cover plate mechanism. An opening position limit switch and a closing position limit switch for turning off the driving motor are provided outside the rotation trajectory of the driving gear, and an extension part for abutting against the opening position limit switch or the closing position limit switch is provided on the driving gear.

[0007] Furthermore, a switch button for starting the driving mechanism is further provided on the lining mechanism.

[0008] Further, the driving mechanism further includes a follower link that is in transmission cooperation with the driving link. One end of the follower link is installed on the inner lining mechanism, and the other end is hinged to the bottom of the cover plate mechanism.

[0009] Further, the cover plate mechanism includes an outer plate and an inner plate. The inner plate is provided with a first hinge seat for hinging the driving link and a second hinge seat for installing the follower link.

[0010] Further, the driving mechanism is provided with two driving links and two follower links. The two driving links are fixedly connected through a driving rotating shaft. The driving link, the follower link, and the driving rotating shaft form a four-bar linkage mechanism, so that when the cover plate is opened and closed, the movement is smoother and more fluent.

[0011] Further, the inner lining mechanism is provided with an inner lining bottom plate and a link base for installing the follower link. The inner lining bottom plate is provided with a hollow part for installing a charging port.

[0012] Further, a plurality of limit and shock-absorbing noise-reducing blocks are further provided on the inner lining bottom plate for limiting the position and shock-absorbing and noise-reducing when the cover plate mechanism is closed.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. The present utility model is provided with an open position limit switch and a closed position limit switch for turning off the driving motor on the outer periphery of the rotation trajectory of the driving gear, and the driving gear is provided with an extension part for pressing against the open position limit switch or the closed position limit switch. When the cover plate is opened or closed in place, the driving motor is stopped by the extension part of the driving gear pressing against the open position limit switch or the closed position limit switch, preventing the driving motor from being overloaded, prolonging the service life of the driving motor, and improving the product reliability.

[0015] 2. The present utility model adopts two driving links, two follower links, and a driving rotating shaft to form a four-bar linkage mechanism, making the cover plate smoother and more fluent when opening and closing; at the same time, the cooperation of the driving link and the follower link enables the cover plate to achieve a translational side-opening effect, making the space occupied by the cover plate in the vehicle body width direction smaller when the cover plate is opened, reducing the probability of the cover plate being damaged by collision, and improving the product reliability.

[0016] 3. The present utility model is provided with limit and shock-absorbing blocks on the inner lining bottom plate of the inner lining mechanism, which limit the position of the cover plate when the cover plate is closed and have the effect of shock-absorbing and noise-reducing, improving the comfort of user use. Description of the Drawings

[0017] Figure 1 It is a three-dimensional view of the open state of the cover plate of the present utility model.

[0018] Figure 2This is a schematic structural diagram of the present utility model lacking a drive motor.

[0019] Figure 3 This is an exploded schematic diagram of the drive mechanism of the present utility model.

[0020] Figure 4 This is a three-dimensional view of the present utility model in the closed state of the cover plate.

[0021] Figure 5 This is a schematic structural diagram of the present utility model in the closed state of the cover plate.

[0022] Figure 6 This is a bottom view of the inner plate of the present utility model.

[0023] Figure 7 This is a top view of the lining mechanism of the present utility model.

[0024] Among them, the reference numerals in the figure are: cover plate 10, outer plate 11, inner plate 12, first hinge seat 121, second hinge seat 122,

[0025] lining 20, switch button 21, connecting rod base 22, limit shock absorber 23, hollow part 24, lining bottom plate 25,

[0026] drive motor 30, drive connecting rod 31, follower connecting rod 32, drive gear 33, driven gear 34, open position limit switch 35, closed position limit switch 36, drive rotating shaft 37. Detailed implementation manners

[0027] The following describes the detailed implementation manners of the present utility model with reference to the accompanying drawings.

[0028] In the description of the present utility model, it should be noted that if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. appear, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, if terms such as "first", "second", etc. appear, they are also only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] Refer to Figures 1-4, a heavy truck charging port cover, which includes a lining mechanism 20 provided with a charging port for installation, and a cover plate 10 for covering and protecting the charging port. There is a driving mechanism between the cover plate 10 and the lining mechanism 20 for laterally translating and opening the cover plate 10. In this embodiment, the driving mechanism includes a four-axis linkage rod mechanism composed of a driving rotating shaft 37, two driving connecting rods 31 and two follower connecting rods 32, and a driving motor 30 for providing power; specifically, a driving gear 33 is fixedly provided on the output end of the driving motor 30, and the driving gear 33 meshes and rotates with a driven gear 34, and the driven gear 34 is fixedly provided on the driving rotating shaft 37; one end of the driving connecting rod is fixedly connected to the driving rotating shaft 37, and the other end is hinged to the cover plate 10; both ends of the follower connecting rod 32 are respectively hinged to the lining mechanism 20 and the cover plate 10. A switch button 21 for driving the driving mechanism is also provided on the lining mechanism 20. When the user presses the switch button 21, the driving motor 30 is started to rotate forward or backward, driving the driving gear 33 to rotate, and the driven gear 34 and the driving rotating shaft 37 are driven, thereby driving the driving connecting rod 31 and the follower connecting rod 32, and pushing the cover plate 10 to laterally translate and open or close. The opening and closing method of the cover plate 10 is simple and fast. The four-link mechanism can make the movement of the cover plate 10 smoother and more fluent. At the same time, the laterally translating and opening method of the cover plate 10 occupies less space in the width direction of the vehicle body when opening, and can reduce the probability of the cover plate 10 being damaged by collision.

[0030] Refer to Figure 2 , Figure 3 and Figure 5 , a start position limit switch 35 and a close position limit switch 36 for shutting down the driving motor 30 are provided on the outer periphery of the rotation track of the driving gear 33. An extension 331 is provided on the driving gear 33. When the driving motor 30 rotates forward to drive the driving gear 33 to rotate until the cover plate 10 is fully opened, the extension 331 of the driving gear 33 abuts against the start position limit switch 35, shutting down the driving motor 30; when the driving motor 30 rotates backward, driving the driving gear 33 to rotate until the cover plate 10 is fully closed, the extension 331 of the driving gear 33 abuts against the close position limit switch 36, shutting down the driving motor 30; the design of the start position limit switch 35 and the close position limit switch 36 can improve the rotation accuracy of the driving gear 33 during the opening or closing process of the cover plate 10, avoid overloading of the output of the driving motor 30, extend the service life of the driving motor 30, and improve the reliability of the structure and vehicle safety.

[0031] Refer to Figure 2 , Figure 5 , Figure 6 and Figure 7, the cover plate 10 is composed of an outer plate 11 and an inner plate 12. The inner plate 12 is provided with a first hinge seat 121 and a second hinge seat 122, which are respectively used for installing the driving link 31 and the follower link 32. The lining mechanism 20 is provided with a lining bottom plate 25 and a link base 22 for installing the follower link 32. The lining bottom plate 25 is provided with a hollow part 24 for installing the charging port. The lining bottom plate 25 is further provided with a plurality of limit damping blocks 23, which can limit the cover plate 10 and play a role in shock absorption and noise reduction when the cover plate 10 is closed, improving the comfort of the user.

[0032] The above is only the specific implementation manner of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantive modification of the present invention using this concept shall fall within the scope of infringement of the protection scope of the present invention.

Claims

1. A structure of a heavy truck charging port cover, characterized in that: It includes a lining mechanism for installing a charging port and a cover plate for covering and protecting the charging port. A driving mechanism for laterally translating and opening the cover plate is provided between the lining mechanism and the cover plate. The driving mechanism includes a driving motor, a driving connecting rod, and a driving rotating shaft. A driving gear is fixedly provided at the output end of the driving motor. A driven gear that meshes and rotates with the driving gear is fixedly provided on the driving rotating shaft. One end of the driving connecting rod is fixedly connected to the driving rotating shaft, and the other end is hinged to the bottom of the cover plate. An open position limit switch and a closed position limit switch for turning off the driving motor are provided on the outer periphery of the rotation trajectory of the driving gear. The driving gear is provided with an extension for abutting against the open position limit switch or the closed position limit switch.

2. The structure of a heavy truck charging port cover according to claim 1, characterized in that: A switch button for starting the driving mechanism is further provided on the lining mechanism.

3. The structure of a heavy truck charging port cover according to claim 1, characterized in that: The driving mechanism further includes a follower connecting rod that is in cooperative transmission with the driving connecting rod. One end of the follower connecting rod is installed on the lining mechanism, and the other end is hinged to the bottom of the cover plate.

4. The structure of a heavy truck charging port cover according to claim 3, characterized in that: The cover plate includes an outer plate and an inner plate. The inner plate is provided with a first hinge seat for installing the driving connecting rod and a second hinge seat for installing the follower connecting rod.

5. The structure of a heavy truck charging port cover according to claim 3, characterized in that: The driving mechanism is provided with two driving connecting rods and two follower connecting rods. The two driving connecting rods are fixedly connected through the driving rotating shaft. The driving connecting rod, the follower connecting rod, and the driving rotating shaft form a four-bar linkage mechanism.

6. The structure of a heavy truck charging port cover according to claim 3, characterized in that: The lining mechanism is provided with a lining bottom plate and a connecting rod base for installing the follower connecting rod. The lining bottom plate is provided with a hollow portion for installing the charging port.

7. The structure of a heavy truck charging port cover according to claim 6, characterized in that: A number of limit and shock-absorbing noise-reducing blocks are further provided on the lining bottom plate for limiting and shock-absorbing when the cover plate is closed.

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