CN109025558B - Automobile fuel tank cap actuator - Google Patents

Abstract

The invention provides an automobile fuel tank cap actuator, which comprises a base and a base cap arranged on the base in a covering way, wherein the interior of the base is divided into a motor cavity and a locking cavity, an intercommunicated jack is arranged between the motor cavity and the locking cavity, a power mechanism is arranged in the motor cavity, a lock tongue is connected to the power mechanism in a transmission way, and a locking mechanism is arranged in the locking cavity, and the lock tongue can pass through the jack and be inserted into the locking mechanism. The invention combines an electric form and a mechanical form, improves the defects of the prior art, avoids misoperation, plays a role in safety, realizes the actions of circularly sliding, rotating and limiting the motion lock shaft through the matching of the motion lock shaft, the guide lock sleeve and the locking cavity, realizes the locking or unlocking of the small oiling door or the small charging door, has exquisite design, firm structure and durability, improves the production and installation efficiency, effectively reduces the impact force and noise, and further improves the service life, the safety and the comfort of the whole product.

Description

Automobile fuel tank cap actuator

Technical Field

The invention relates to the field of automobile accessories, in particular to an automobile fuel tank cap actuator.

Background

Nowadays, with the development of the automobile industry and the improvement of the automobile popularity, the performance requirements of people on the automobile are higher and higher, and the rapidness, convenience and safety of various operations of the automobile are also more important, so that the improvement of the automobile structure and the application of new technology are particularly important for automobile enterprises.

The automobile fuel tank cover actuator is a fuel tank cover, and a locking mechanism of the charging cover controls the opening and closing of the fuel tank. In the traditional structure, the small door of the oil filler cap or the small door of the charging cap is opened and closed, and most of the small doors are opened or closed in a mechanical mode, namely, the lock rod is fixed on the small door, the lock sleeve is fixed on the vehicle body seat, and the opening and the closing are realized by pressing or pulling the inhaul cable, so that the small door is easily influenced by external factors to cause misoperation. Therefore, the fuel tank cap actuator on the market at present has complex structure, various parts and inconvenient assembly, which results in excessive cost and inconvenience for production and installation.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides an actuator for an automobile fuel tank cap.

The technical scheme for solving the technical problems is as follows: the automobile fuel tank cap actuator comprises a base and a base cover which is covered on the base, wherein the interior of the base is divided into a motor cavity and a locking cavity, an intercommunicating jack is formed between the motor cavity and the locking cavity, a power mechanism is arranged in the motor cavity, a lock tongue is connected to the power mechanism in a transmission way, and a locking mechanism is arranged in the locking cavity, and the lock tongue can pass through the jack and is inserted into the locking mechanism;

the power mechanism comprises a motor, an output gear connected to an output shaft of the motor, a gear ring meshed with the output gear, and a lock tongue in transmission connection with the gear ring, wherein the gear ring is provided with a closed upper end face, a guide chute with an eccentric track is formed in the upper end face, a guide salient point is arranged at the tail end of the lock tongue in a downward protruding mode, the guide salient point is arranged in the guide chute in a sliding mode, the motor is started, and the lock tongue can realize telescopic motion according to the eccentric track on the guide chute through transmission of the output gear and the gear ring;

the locking mechanism comprises a moving lock shaft, a guide lock sleeve and a spring, wherein the upper end of the moving lock shaft is provided with a lock pin, the lock pin extends out of the base cover and is connected with the oil tank cover, the guide lock sleeve is sleeved on the moving lock shaft, the inner wall of the locking cavity is provided with a limit boss, and the guide lock sleeve and the limit boss form limit fit; the movable lock shaft is provided with a containing cavity, the spring is arranged in the containing cavity, the upper end of the spring is abutted with the cavity wall at the top of the containing cavity, and the lower end of the spring is abutted with the bottom of the locking cavity;

a circle of locking grooves for inserting the lock tongue are formed in the periphery of the movable lock shaft;

the inner wall of the guide lock sleeve is provided with at least two limiting sliding grooves which vertically penetrate through the guide lock sleeve, the limiting sliding grooves are uniformly distributed along the inner wall of the guide lock sleeve, the outer wall of the motion lock shaft is provided with guide blocks, and the guide blocks are clamped into the limiting sliding grooves;

the bottom of the locking cavity is provided with a circle of guide ring in an upward protruding mode, the guide ring consists of a plurality of identical guide ribs, the upper end face of each guide rib is an inclined rotary guide inclined plane, and the limiting chute corresponds to the highest point of the rotary guide inclined plane in the vertical direction;

a guide boss is convexly arranged on the inner wall of the guide lock sleeve, and a rotary gap is formed between the guide boss and the guide ring; the guide boss consists of a locking guide inclined plane and a release guide inclined plane, the inclination direction of the locking guide inclined plane is consistent with that of the release guide inclined plane, and the inclination direction of the rotary guide inclined plane is opposite to that of the locking guide inclined plane and that of the release guide inclined plane respectively; the tail end of the locking guide inclined plane is connected with the front end of the release guide inclined plane and forms a locking part with a height difference, the front end of the locking guide inclined plane is tightly attached to one of the limit sliding grooves, and the tail end of the release guide inclined plane is tightly attached to the other limit sliding groove.

Preferably, the two limit sliding grooves are arranged on the inner wall of the guide lock sleeve at intervals of 180 degrees, the two guide bosses are symmetrically distributed on the inner wall of the guide lock sleeve, and the four guide ribs are uniformly distributed on the bottom of the locking cavity.

Preferably, a spring support column is convexly arranged at the bottom of the locking cavity, and the lower part of the spring is sleeved on the spring support column.

Preferably, a gear seat for fixing the gear ring is arranged between the motor and the gear ring, a stop block is arranged on the gear seat, a limiting protrusion is arranged on the gear ring, and the stop block and the limiting protrusion form limiting fit, so that the stop block plays a role in limiting the rotation angle of the gear ring.

Preferably, the gear frame is convexly provided with a concave limiting frame, and the lock tongue is arranged on the limiting frame.

Preferably, the side surface of the stop block is provided with a soft cushion.

Preferably, the lower end surface of the guide block is obliquely arranged and forms a lower movement inclined plane matched with the rotary guide inclined plane;

the upper end face of the guide block is obliquely arranged and forms an upper movement inclined plane which is matched with the locking guide inclined plane and the releasing guide inclined plane.

The invention has the beneficial effects that: combines the electric form with mechanical form to improve prior art's defect, avoided the maloperation, played the insurance effect, through the cooperation in motion lock axle, direction lock sleeve and locking chamber, realized the rotatory and spacing action of motion lock axle circulation sliding, realized the shutting or unblanking to refueling the little door or charging the little door, the design is exquisite, and sound construction, durable has improved the efficiency of production installation, effectively reduces impact force and noise, and then has improved holistic life, security and the travelling comfort of product.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is a cross-sectional view of the motion lock shaft in a released state in accordance with the present invention.

Fig. 4 is a cross-sectional view of the motion lock shaft in a locked state in accordance with the present invention.

Fig. 5 is a schematic view of the internal structure of the base.

Fig. 6 is a cross-sectional view of the lock chamber.

Fig. 7 is a schematic structural view of the guide sleeve.

Fig. 8 is a schematic structural view of the gear seat.

Fig. 9 is a schematic structural view of the ring gear.

Detailed Description

The invention is described in further detail below with reference to the drawings and the detailed description.

Referring to fig. 1 to 9, an automobile fuel tank cap actuator comprises a base 1 and a base cover 2 which is arranged on the base 1 in a covering manner, wherein the interior of the base 1 is divided into a motor cavity 3 and a locking cavity 4, an intercommunicated jack 5 is arranged between the motor cavity 3 and the locking cavity 4, a power mechanism is arranged in the motor cavity 3, a lock tongue 6 is connected to the power mechanism in a transmission manner, a locking mechanism is arranged in the locking cavity 4, and the lock tongue 6 can pass through the jack 5 and be inserted into the locking mechanism;

the power mechanism comprises a motor 7, an output gear 8 connected to an output shaft of the motor, a gear ring 9 meshed with the output gear 8, and a lock tongue 6 in transmission connection with the gear ring 9, wherein the gear ring 9 is provided with a closed upper end surface, a guide chute 10 with an eccentric track is arranged on the upper end surface, the tail end of the lock tongue 6 is provided with a guide convex point 11 in a downward protruding mode, the guide convex point 11 is slidably arranged in the guide chute 10, the motor 7 is started, and the lock tongue 6 can realize telescopic movement according to the eccentric track on the guide chute 10 through transmission of the output gear 8 and the gear ring 9;

the locking mechanism comprises a moving lock shaft 12, a guide lock sleeve 13 and a spring 14, wherein a lock pin 15 is arranged at the upper end of the moving lock shaft 12, the lock pin 15 extends out of the base cover 2 and is connected with the oil tank cover, the guide lock sleeve 13 is sleeved on the moving lock shaft 12, a limit boss 16 is arranged on the inner wall of the locking cavity 4, and the guide lock sleeve 13 and the limit boss 16 form limit fit; the motion lock shaft 12 is provided with a containing cavity 17, the spring 14 is arranged in the containing cavity 17, the upper end of the spring 14 is abutted with the cavity wall at the top of the containing cavity 17, and the lower end of the spring 14 is abutted with the bottom of the locking cavity 4;

a circle of locking groove 18 for inserting the lock tongue 6 is formed in the periphery of the movable lock shaft 12;

the inner wall of the guide lock sleeve 13 is provided with at least two vertical limit sliding grooves 19 penetrating through the guide lock sleeve 13, the limit sliding grooves 19 are uniformly distributed along the inner wall of the guide lock sleeve 13, the outer wall of the motion lock shaft 12 is provided with guide blocks 20, and the guide blocks 20 are clamped into the limit sliding grooves 19;

the bottom of the locking cavity 4 is provided with a circle of guide ring 21 in an upward protruding mode, the guide ring 21 consists of a plurality of identical guide ribs 22, the upper end face of each guide rib 22 is an inclined rotary guide inclined plane 23, and the limit chute 19 corresponds to the highest point of the rotary guide inclined plane 23 in the vertical direction;

a guide boss 24 is convexly arranged on the inner wall of the guide lock sleeve 13, and a rotary gap 25 is formed between the guide boss 24 and the guide ring 21; the guide boss 24 is composed of a locking guide inclined plane 26 and a release guide inclined plane 27, the inclination direction of the locking guide inclined plane 26 is consistent with that of the release guide inclined plane 27, and the inclination direction of the rotary guide inclined plane 23 is opposite to that of the locking guide inclined plane 26 and that of the release guide inclined plane 27 respectively; the end of the locking guide inclined surface 26 is connected with the front end of the release guide inclined surface 27 and forms a locking part 28 with a height difference, the front end of the locking guide inclined surface 26 is clung to one of the limit sliding grooves 19, and the end of the release guide inclined surface 27 is clung to the other limit sliding groove 19.

Preferably, the two limit sliding grooves 19 are arranged on the inner wall of the guide lock sleeve 13 at 180 degrees intervals, the two guide bosses 24 are symmetrically distributed on the inner wall of the guide lock sleeve 13, and the four guide ribs 22 are uniformly distributed on the bottom of the locking cavity 4. In the preferred embodiment, when the lock is used, the lock shaft 12 can be locked and released for 2 times by rotating one circle, namely, when the lock shaft 12 rotates for a certain angle (preferably 90 degrees), the lock shaft 12 can be switched from the locked state to the released state or from the released state to the locked state. The uniformly distributed structure is simple and convenient to produce, low in cost and more stable and reliable in use.

In this embodiment, a spring support column 29 is convexly disposed at the bottom of the locking cavity 4, and the lower portion of the spring 14 is sleeved on the spring support column 29. Through the setting of spring support column 29, can play spacing, the effect of support to spring 14 for spring 14 is in the more stable of in-process position maintenance, thereby ensures normal result of use.

In this embodiment, a gear seat 30 for fixing the gear ring 9 is disposed between the motor 7 and the gear ring 9, a stop block 31 is disposed on the gear seat 30, a limit protrusion 32 is disposed on the gear ring 9, and the stop block 31 and the limit protrusion 32 form a limit fit, so that the stop block 31 plays a role in limiting the rotation angle of the gear ring 9. The gear frame is convexly provided with a concave limiting frame 33, and the lock tongue 6 is arranged on the limiting frame 33.

In this embodiment, the side surface of the stopper 31 is provided with a cushion 34. The cushion 34 can play a role in buffering when the limit protrusion 32 collides with the stop block 31, so that the service life of parts is prolonged, and noise generated during collision is effectively reduced.

In this embodiment, the lower end surface of the guide block 20 is obliquely disposed and forms a lower moving inclined surface 35 adapted to the rotary guide inclined surface 23; the upper end surface of the guide block 20 is inclined and forms an upper moving inclined surface 36 which is matched with the locking guide inclined surface 26 and the releasing guide inclined surface 27. With the structure of this embodiment, when the guide block 20 contacts the guide ring 21 or the guide boss 24, the lower moving inclined surface 35 also contacts the rotating guide inclined surface 23, and the upper moving inclined surface 36 or the locking guide inclined surface 26 or the releasing guide inclined surface 27 contacts, so that the rotating movement of the moving lock shaft 12 can be smoother in place by the design of the inclination angles of the inclined surfaces and the application cooperation (preferably the inclination angles are consistent).

When the actuator is locked, a movable lock shaft 12 connected with the oil tank cover is forced to be inserted into the bottom of a locking cavity 4 when the oil tank cover is closed, so that a spring 14 is contracted, and a lower movable inclined surface 35 at the lower end of a guide block 20 on the movable lock shaft 12 is abutted with a rotary guide inclined surface 23 on a guide ring 21 at the bottom of the locking cavity 4 in the inserting process, and the movable lock shaft 12 is driven to rotate due to the mutual guiding action of the inclined surfaces; then the user releases the oil tank cover, the movable lock shaft 12 returns upwards under the action of the restoring force of the spring 14 and enables the lower movable inclined surface 35 to be separated from the rotary guide inclined surface 23, the movable lock shaft 12 is rotated to a certain angle in the previous pressing process, so that the position of the guide block 20 is staggered with the limit chute 19 in the rising stage, the guide block 20 is abutted with the guide boss 24 on the guide lock sleeve 13, the upper movable inclined surface 36 at the upper end of the movable lock shaft 12 is contacted with the locking guide inclined surface 26 and guides the guide block 20 to the position of the locking part 28, at the moment, the guide block 20 forms interference fit with the locking part 28, the movable lock shaft 12 stops rotating, and then the motor 7 is started to drive the lock tongue 6 to be locked into the locking groove 18 of the movable lock shaft 12, so that the aim of locking the movable lock shaft 12 is fulfilled.

When the actuator is unlocked, the starting motor 7 is reversely rotated to realize pre-unlocking, the fuel tank cover is pressed again to enable the movable lock shaft 12 connected with the fuel tank cover to be forced to be inserted into the bottom of the locking cavity 4 and enable the spring 14 to be contracted, and in the inserting process, the lower movable inclined surface 35 at the lower end of the guide block 20 on the movable lock shaft 12 is abutted with the rotary guide inclined surface 23 on the guide ring 21 at the bottom of the locking cavity 4, and the movable lock shaft 12 is driven to rotate due to the mutual guiding action of the inclined surfaces; then the user releases the oil tank cover, the movable lock shaft 12 returns upwards under the action of the restoring force of the spring 14 and enables the lower movable inclined surface 35 to be separated from the rotary guide inclined surface 23, and the position of the guide block 20 is staggered from the locking part 28 in the ascending stage because the movable lock shaft 12 rotates to a certain angle in the previous pressing process, the guide block 20 can be abutted with the guide boss 24 on the guide lock sleeve 13, the upper movable inclined surface 36 at the upper end of the movable lock shaft 12 is contacted with the release guide inclined surface 27 and guides the guide block 20 to the position of the limit chute 19, and after the guide block 20 is clamped into the limit chute 19, the movable lock shaft 12 can continuously ascend and return to the initial position by the restoring force of the spring 14, so that the purpose of releasing the movable lock shaft 12 is achieved.

Claims (7)

1. The automobile fuel tank cap actuator comprises a base and a base cover which is covered on the base, wherein the interior of the base is divided into a motor cavity and a locking cavity, an intercommunicating jack is formed between the motor cavity and the locking cavity, a power mechanism is arranged in the motor cavity, a lock tongue is connected to the power mechanism in a transmission way, and a locking mechanism is arranged in the locking cavity, and the lock tongue can pass through the jack and is inserted into the locking mechanism; the method is characterized in that:

the power mechanism comprises a motor, an output gear connected to an output shaft of the motor, a gear ring meshed with the output gear, and a lock tongue in transmission connection with the gear ring, wherein the gear ring is provided with a closed upper end face, a guide chute with an eccentric track is formed in the upper end face, a guide salient point is arranged at the tail end of the lock tongue in a downward protruding mode, the guide salient point is arranged in the guide chute in a sliding mode, the motor is started, and the lock tongue can realize telescopic motion according to the eccentric track on the guide chute through transmission of the output gear and the gear ring;

the locking mechanism comprises a moving lock shaft, a guide lock sleeve and a spring, wherein the upper end of the moving lock shaft is provided with a lock pin, the lock pin extends out of the base cover and is connected with the oil tank cover, the guide lock sleeve is sleeved on the moving lock shaft, the inner wall of the locking cavity is provided with a limit boss, and the guide lock sleeve and the limit boss form limit fit; the movable lock shaft is provided with a containing cavity, the spring is arranged in the containing cavity, the upper end of the spring is abutted with the cavity wall at the top of the containing cavity, and the lower end of the spring is abutted with the bottom of the locking cavity;

a circle of locking grooves for inserting the lock tongue are formed in the periphery of the movable lock shaft;

the inner wall of the guide lock sleeve is provided with at least two limiting sliding grooves which vertically penetrate through the guide lock sleeve, the limiting sliding grooves are uniformly distributed along the inner wall of the guide lock sleeve, the outer wall of the motion lock shaft is provided with guide blocks, and the guide blocks are clamped into the limiting sliding grooves;

the bottom of the locking cavity is provided with a circle of guide ring in an upward protruding mode, the guide ring consists of a plurality of identical guide ribs, the upper end face of each guide rib is an inclined rotary guide inclined plane, and the limiting chute corresponds to the highest point of the rotary guide inclined plane in the vertical direction;

a guide boss is convexly arranged on the inner wall of the guide lock sleeve, and a rotary gap is formed between the guide boss and the guide ring; the guide boss consists of a locking guide inclined plane and a release guide inclined plane, the inclination direction of the locking guide inclined plane is consistent with that of the release guide inclined plane, and the inclination direction of the rotary guide inclined plane is opposite to that of the locking guide inclined plane and that of the release guide inclined plane respectively; the tail end of the locking guide inclined plane is connected with the front end of the release guide inclined plane and forms a locking part with a height difference, the front end of the locking guide inclined plane is tightly attached to one of the limit sliding grooves, and the tail end of the release guide inclined plane is tightly attached to the other limit sliding groove.

2. The automotive fuel tank cap actuator of claim 1, wherein: the limiting sliding grooves are arranged on the inner wall of the guide lock sleeve at intervals of 180 degrees, the two guide bosses are symmetrically distributed on the inner wall of the guide lock sleeve, and the four guide ribs are uniformly distributed on the bottom of the locking cavity.

3. The automotive fuel tank cap actuator of claim 1, wherein: the bottom of the locking cavity is convexly provided with a spring support column, and the lower part of the spring is sleeved on the spring support column.

4. The automotive fuel tank cap actuator of claim 1, wherein: the gear seat is used for fixing the gear ring, a stop block is arranged on the gear seat, a limiting protrusion is arranged on the gear ring, and the stop block and the limiting protrusion form limiting fit, so that the stop block plays a role in limiting the rotation angle of the gear ring.

5. The automotive fuel tank cap actuator of claim 4, wherein: the gear seat is convexly provided with a concave limiting frame, and the lock tongue is arranged on the limiting frame.

6. The automotive fuel tank cap actuator of claim 4, wherein: the side of the stop block is provided with a soft cushion.

7. The automotive fuel tank cap actuator of claim 1, wherein: the lower end face of the guide block is obliquely arranged and forms a lower movement inclined plane matched with the rotary guide inclined plane;

the upper end face of the guide block is obliquely arranged and forms an upper movement inclined plane which is matched with the locking guide inclined plane and the releasing guide inclined plane.

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