Gear linkage locking mechanism and an automatic charging port cover

Abstract

The present invention provides a gear linkage locking mechanism and an automatic charging port cover, wherein the gear linkage locking mechanism includes a connecting plate, a driving shaft passing through the connecting plate, the driving shaft is connected to the connecting plate through a driving gear, a driving gear and a locking gear are provided on both sides of the driving gear, a locking rack is provided below the driving gear, the driving shaft is connected to the driving motor, and the driving motor works to drive the driving shaft to move, the driving shaft drives the driving gear and the locking gear to move, and the locking gear drives the locking rack to perform linear motion. The beneficial effects of the present invention are embodied in that the gear linkage locking mechanism of the present invention has a wide range of application scenarios, high reliability, and low cost. The automatic charging port cover using the gear linkage locking mechanism can effectively and stably achieve mechanical locking, and for vehicle manufacturers, it also avoids complicated control logic and can reduce software development costs accordingly.

Description

Technical Field

[0001] The present invention belongs to the technical field of automobile accessories, and in particular relates to a gear linkage locking mechanism and an automatic charging port cover. Background Art

[0002] With the continuous development of new energy vehicles, many parts of traditional fuel vehicles have been optimized and upgraded to cater to the experience of end consumers. Among them, the automatic charging port cover is an upgrade based on the traditional fuel tank cover of fuel vehicles. The automatic charging port cover can be opened in a variety of ways, such as button opening, central control screen opening, mobile phone APP opening, charging gun approaching opening, etc., thereby giving users a better sensory experience.

[0003] The existing automatic charging port cover is mainly composed of a motor and a motion mechanism. The motor is used to open or close the charging port cover. However, when in the closed state, due to the limitation of the motor torque, the charging port cover cannot have sufficient holding force, which will result in the charging port cover product being unable to be locked in the closed state, resulting in an abnormal gap between the charging port cover and the vehicle body. What's worse, the inability to lock will cause the charging port cover to be thrown out due to inertia during vehicle driving, or when the vehicle turns at high speed, the charging port cover is at risk of being thrown out by centrifugal force.

[0004] At the same time, to increase product competitiveness, some new energy vehicle brands have added reverse charging functions, namely adding sockets for other electrical devices next to the charging station. However, if the charging port cover cannot be locked when closed, there is a risk that the reverse charging function can be used by others. To solve the problem of being unable to lock, the current common solution is to add an electronic lock. The principle is that after the charging port cover is closed, a signal is sent through the in-position switch, and the electronic lock receives the signal and activates the lock, locking the charging port cover. However, electronic locks are expensive and also increase the difficulty of vehicle control logic. Summary of the Invention

[0005] In order to address the deficiencies of the prior art, the present invention proposes a gear-linked locking mechanism and an automatic charging port cover, wherein the charging port cover can be mechanically locked and has high safety.

[0006] The purpose of the present invention is achieved through the following technical solutions:

[0007] The gear linkage locking mechanism includes a connecting plate and a driving shaft passing through the connecting plate. The driving shaft is connected to the connecting plate through a driving gear. A driving gear and a locking gear are provided on both sides of the driving gear. A locking rack is provided below the driving gear. The driving shaft is connected to a driving motor. When the driving motor works, it drives the driving shaft to move. The driving shaft drives the driving gear and the locking gear to move. The locking gear drives the locking rack to perform linear motion.

[0008] Preferably, the gear of the driving gear is an irregular gear, and the teeth on the driving gear only occupy a partial circumference of the gear, and a latch tooth is provided on one side of the gear tooth, and the spacing between the latch tooth and the gear tooth is greater than the spacing between adjacent gear teeth; the gear teeth on the driving gear are meshed with the gear teeth on the driving gear, and the driving gear is provided with a locking tooth, the length of the locking tooth is greater than the other gear teeth on the driving gear, and a second locking tooth is protruding from the locking gear. When the driving gear rotates, the driving locking tooth contacts the second locking tooth to drive the locking gear to rotate, and the locking rack is provided below the locking gear, and the locking gear teeth are provided on the locking rack, and the locking gear teeth on the locking rack are meshed with the gear teeth on the locking gear.

[0009] Preferably, a boss is provided on the side wall of the connecting plate, a positioning strip is provided below the boss, a slot is provided behind the boss, a notch is provided at the front end of the connecting plate, the tail end of the locking rack is placed in the slot through a spring, the front end of the locking rack is placed in the notch, and the middle part of the locking rack is placed on the boss and mounted on the positioning strip.

[0010] Preferably, the locking rack includes a tail section, a middle section and a front section, a connecting oblique section is provided between the middle section and the front section, the front section is placed above the extension line of the middle section, the middle section is provided with meshing teeth for engaging with the locking gear, the middle section is also provided with a strip groove, a limiting section is vertically provided on the locking rack, the limiting section is provided at the intersection of the tail end and the middle section, the limiting section is placed in front of the slot, a spring is sleeved on the tail end, and the strip groove is sleeved on the protruding column.

[0011] Preferably, an automatic charging port cover has any one of the above gear linkage locking mechanisms.

[0012] Preferably, it includes a charging door box and a door cover arranged on the charging door box, one end of the door cover is connected to the driving gear through a connecting shaft, and a locking rod for locking the door cover is provided on one side of the door box, one end of the locking rod is connected to the front section of the locking rack, and the other end of the locking rod is placed in front of the door cover and bent toward the door cover.

[0013] Preferably, a locking opening is provided at the bottom front end of the door cover, and the active shaft moves to drive the locking gear to rotate, and combined with the spring to drive the locking rack to perform linear reciprocation, driving the driving gear to drive the bent front end of the locking rod to extend into or leave the locking opening, thereby completing the locking or loosening of the door cover, and the driving gear drives the door cover to rotate to achieve opening or closing.

[0014] Preferably, a micro switch is also provided on the connecting plate, and the micro switch is placed behind the limit section. The linear movement of the locking rack realizes the disconnection or closing of the micro switch, and the micro switch is connected to the vehicle's entire system.

[0015] The beneficial effects of the present invention are reflected in its wide application scenarios, high reliability, and low cost. Automatic charging port covers using this gear-linked locking mechanism can effectively and stably achieve mechanical locking. For vehicle manufacturers, this also avoids complex control logic and can correspondingly reduce software development costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 : Schematic diagram of the automatic charging port cover structure of the present invention, with the driving shaft hidden at this time.

[0017] Figure 2 : Figure 1 An enlarged schematic diagram of the middle gear linkage locking mechanism structure A.

[0018] Figure 3 : Schematic diagram of the connecting plate structure of the present invention.

[0019] Figure 4 : A schematic structural diagram of the locking rack of the present invention.

[0020] Figure 5 : The present invention Figure 1 Schematic diagram of the automatic charging port cover structure.

[0021] Figure 6 : Schematic diagram of the automatic charging port cover structure from another perspective of the present invention.

[0022] Among them, 1 door cover, 2 driving gear, 3 driving gear, 4 locking gear, 5 locking rod, 6 micro switch, 7 connecting plate, 8 spring, 11 connecting shaft, 12 locking mouth, 13 driving shaft, 31 locking tooth, 22 locking tooth, 43 second locking tooth, 71 protrusion, 73 recess, 74 slot, 81 front section, 82 connecting oblique section, 83 locking gear tooth, 84 limiting section, 85 tail section, 86 strip groove, 51 bending section. DETAILED DESCRIPTION

[0023] The present invention discloses a gear linkage locking mechanism and an automatic charging port cover having the gear linkage locking mechanism. Figures 1-6 As shown, the gear linkage locking mechanism includes a connecting plate 7 and a driving shaft 13 passing through the connecting plate 7. The driving shaft 13 is placed in the driving gear 2 and connected to the connecting plate 7 through the driving gear 2. A driving gear 3 and a locking gear 4 are respectively provided on both sides of the driving gear 2.

[0024] A locking rack is provided below the driving gear 2. The other end of the driving shaft 13 is connected to the driving motor. When the driving motor works, it drives the driving shaft 13 to move. The driving shaft 13 drives the driving gear 3 and the locking gear 4 to move. The locking gear 4 drives the locking rack to perform linear motion.

[0025] Specifically, the drive gear 3 is an irregular gear, meaning that the teeth are not evenly distributed around the circumference. As shown in the figure, the teeth on the drive gear 3 only occupy a portion of the circumference of the gear. A latching tooth 31 is provided on one side of the tooth, and the spacing between the latching tooth 31 and the gear teeth is greater than the spacing between adjacent teeth.

[0026] The teeth on the drive gear 3 mesh with the teeth on the driving gear 2. Specifically, the driving gear 2 is provided with primary teeth and primary latching teeth 21 that mesh with the teeth of the drive gear 3. Furthermore, the driving gear 2 is provided with a locking tooth 22, which is longer than the other teeth on the driving gear 2. The locking tooth 22 is used to drive the rotation of the locking gear 4. The locking gear 4 is provided with a coaxial boss, on which a second locking tooth 43 is disposed outwardly.

[0027] The driving gear 2 rotates, driving the locking tooth 22 to contact the second locking tooth 43, thereby driving the locking gear 4 to rotate. The locking rack is arranged below the locking gear 4, and the locking rack is provided with locking gear teeth 83. The locking gear teeth 83 on the locking rack are engaged with the gear teeth on the locking gear 4. Therefore, when the locking gear 4 rotates, it will drive the locking rack to perform linear motion.

[0028] A protruding column 71 is provided on the side wall of the connecting plate 7 , a positioning bar 72 is provided below the protruding column 71 , a locking groove 74 is provided behind the protruding column 71 , and a notch 73 is provided at the front end of the connecting plate 7 .

[0029] The locking rack includes a tail section 85, a middle section and a front section 81, and a connecting oblique section 82 is provided between the middle section and the front end. The connecting oblique section 82 is provided obliquely upward, that is, the front section 81 is placed above the extension line of the middle section.

[0030] The middle part is provided with meshing teeth 83 for engaging with the locking gear, and the middle part is also provided with a strip groove 86. A limiting section 84 is vertically provided on the locking rack, and the limiting section 84 is provided at the intersection of the tail section 85 and the middle part. The limiting section is placed in front of the card slot, and a spring 8 is placed on the tail end. The tail end 85 of the locking rack is placed in the card slot 74 through the spring 8, and the front section 81 of the locking rack is placed in the recess 73. The middle part of the locking rack is placed on the boss through the strip groove 86, and its bottom is mounted on the positioning bar 72.

[0031] The present invention also discloses an automatic charging port cover having any of the above-described gear-linked locking mechanisms, comprising a charging door box and a door cover 1 mounted on the charging door box, one end of which is connected to a drive gear 3 via a connecting shaft 11. In this embodiment, the drive gear 3 is positioned above and behind the connecting plate 7 to facilitate opening and closing of the door cover. As shown in the drawings of this embodiment, the teeth of the drive gear 3 are located on the rear side of the drive gear 3 to rotate the door cover in actual use.

[0032] A locking rod 5 for locking the door cover 1 is provided on one side of the door box, one end of the locking rod 5 is connected to the front section 81 of the locking rack, and the other end of the locking rod 5 is placed on the front side of the door cover and bent toward the door cover 1.

[0033] Specifically, a locking opening 12 is provided at the bottom front end of the door cover 1 , and the bent section 51 of the locking rod 5 reciprocates inside and outside the locking opening 12 , thereby achieving the purpose of locking or loosening the door cover 1 .

[0034] The connecting plate 7 of the present invention is also provided with a micro switch 6, which is connected to the vehicle's entire system. The micro switch 6 is placed behind the limit section 84, and the linear movement of the locking rack will open or close the micro switch 6.

[0035] The driving shaft 13 moves, driving the driving gear 2 to rotate. The driving gear 2 rotates, driving the locking gear 4 to rotate through the locking gear 22. When the locking gear 4 rotates, it moves toward the rear of the door cover 1 by engaging the meshing teeth 83 on the locking rack, extending the front end of the locking rod 5 into the locking opening 12 for locking. Similarly, when the door cover 1 needs to be opened, the locking rack moves toward the front side of the door cover under the action of the spring, causing the front end of the locking rod 5 to leave the locking opening. At this time, the micro switch 6 and the limit section 84 change from closed to open, thereby giving the entire vehicle a signal that the charging port cover has been unlocked and opened. After the unlocking action is completed, the driving gear drives the driving gear 3 to move, and the driving gear 3 drives the door cover 1 to complete the flip and realize its opening action.

[0036] Finally, it should be noted that terms such as "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicate positions or relationships based on the positions or relationships shown in the accompanying drawings. These terms are intended solely to facilitate and simplify the description of the present invention and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. Gear linkage locking mechanism, characterized by: The invention comprises a connecting plate and a driving shaft passing through the connecting plate, wherein the driving shaft is connected to the connecting plate through a driving gear, a driving gear and a locking gear are provided on both sides of the driving gear, and a locking rack is provided below the driving gear. The driving shaft is connected to a driving motor, and when the driving motor works, it drives the driving shaft to move, and the driving shaft drives the driving gear and the locking gear to move, and the locking gear drives the locking rack to perform linear motion; The gear of the driving gear is an irregular gear, and the teeth of the driving gear are distributed on the rear side of the driving gear. The teeth on the driving gear have and only occupy part of the circumference of the gear. A latch tooth is provided on one side of the gear tooth, and the spacing between the latch tooth and the gear tooth is greater than the spacing between adjacent gear teeth; the gear teeth on the driving gear are meshed with the gear teeth on the driving gear, and the driving gear is provided with a locking tooth, the length of the locking tooth is greater than the other gear teeth on the driving gear, and a second locking tooth is protruding from the locking gear. When the driving gear rotates, the driving locking tooth contacts the second locking tooth to drive the locking gear to rotate, and the locking rack is provided below the locking gear. The locking gear teeth on the locking rack are meshed with the gear teeth on the locking gear.

2. The gear linkage locking mechanism according to claim 1, wherein: A boss is provided on the side wall of the connecting plate, a positioning strip is provided below the boss, a slot is provided behind the boss, a notch is provided at the front end of the connecting plate, the tail end of the locking rack is placed in the slot through a spring, the front end of the locking rack is placed in the notch, and the middle part of the locking rack is placed on the boss and mounted on the positioning strip.

3. The gear linkage locking mechanism according to claim 2, wherein: The locking rack includes a tail section, a middle section and a front section, a connecting oblique section is provided between the middle section and the front section, the front section is placed above the extension line of the middle section, the middle section is provided with meshing teeth for engaging with the locking gear, the middle section is also provided with a strip groove, a limiting section is vertically provided on the locking rack, the limiting section is provided at the intersection of the tail section and the middle section, the limiting section is placed in front of the slot, the tail section is sleeved with a spring, and the strip groove is sleeved on the convex column.

4. An automatic charging port cover, characterized in that: It has a gear linkage locking mechanism as claimed in any one of claims 1 to 3.

5. The automatic charging port cover according to claim 4, characterized in that: It includes a charging door box and a door cover arranged on the charging door box. One end of the door cover is connected to the driving gear through a connecting shaft. A locking rod for locking the door cover is provided on one side of the door box. One end of the locking rod is connected to the front section of the locking rack, and the other end of the locking rod is placed on the front side of the door cover and bent toward the door cover.

6. The automatic charging port cover according to claim 5, characterized in that: The locking rack includes a tail section, a middle section and a front section, the tail section is sleeved with a spring, and a locking opening is provided at the bottom front end of the door cover. The active shaft moves, driving the locking gear to rotate, and combined with the spring to drive the locking rack to perform linear reciprocating, driving the driving gear to drive the bent front end of the locking rod to extend into or leave the locking opening, completing the locking or loosening of the door cover, and the driving gear drives the door cover to rotate to achieve opening or closing.

7. The automatic charging port cover according to claim 6, characterized in that: A limit section is vertically provided on the locking rack, and a micro switch is also provided on the connecting plate. The micro switch is placed behind the limit section. The linear movement of the locking rack realizes the disconnection or closing of the micro switch, and the micro switch is connected to the vehicle's entire system.

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