CN212950126U - Intelligent oil filling cover - Google Patents

Abstract

The embodiment of the utility model discloses intelligence adds oil cap, include: the upper cover, the lid body, drive mechanism and actuating mechanism, the upper cover is connected with the lid body, surround and form the transmission chamber, place the transmission intracavity in the actuating mechanism, and connect between upper cover and the lid body, actuating mechanism is connected with drive mechanism, when the pressure reaches the preset threshold value in the oil tank, actuating mechanism drives drive mechanism and moves to the second position from the primary importance, when drive mechanism is in the primary importance, be connected through the drive mechanism transmission between upper cover and the lid body, when drive mechanism is in the second place, the separation is connected in the transmission between upper cover and the lid body. The upper cover that intelligence adds oil cap is connected through drive mechanism and lid body, and when oil tank internal pressure reached the threshold value, actuating mechanism can remove the second position from the primary importance for be connected the separation between upper cover and the lid body, thereby when rotating the upper cover and trying to take off this adds oil cap, can't transmit and cover on one's body, make this add oil cap can't take off.

Description

Intelligent oil filling cover

Technical Field

The utility model relates to an add oil cap technical field, especially relate to an intelligence adds oil cap.

Background

Because gasoline has strong volatility and is inflammable and explosive, the oil filling cover needs good sealing performance so as to avoid gasoline steam overflow. However, when the temperature inside the fuel tank of the automobile rises rapidly, such as in summer when the temperature changes greatly, or when the automobile enters or passes through a high-temperature area, the pressure inside the fuel tank of the automobile increases rapidly, and if the fuel filler cap is opened at the moment, the accident that gasoline or gasoline steam is sprayed from the fuel filler to hurt people is easy to occur.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned technique not enough, provide an intelligence and add oil cap, solve among the prior art oil tank internal pressure and open when too big and add oil cap, appear the technical problem who hurts the people accident easily.

In order to achieve the technical purpose, the embodiment of the utility model provides an intelligence adds oil cap, this intelligence adds oil cap includes: the upper cover, the lid body, drive mechanism and actuating mechanism, the upper cover is connected with the lid body, surround and form the transmission chamber, place the transmission intracavity in the actuating mechanism, and connect between upper cover and the lid body, actuating mechanism is connected with drive mechanism, when the pressure reaches the preset threshold value in the oil tank, actuating mechanism drives drive mechanism and moves to the second position from the primary importance, when drive mechanism is in the primary importance, be connected through the drive mechanism transmission between upper cover and the lid body, when drive mechanism is in the second place, the separation is connected in the transmission between upper cover and the lid body.

Compared with the prior art, this intelligence adds oil cap's upper cover is connected with the lid body through drive mechanism, and when oil tank internal pressure reached the threshold value, actuating mechanism can remove to the second position from the primary importance for be connected through drive mechanism between upper cover and the lid body and be destroyed, thereby when rotating the upper cover and try to take off this and add oil cap, the rotation of upper cover can't transmit to the lid on one's body, makes this add oil cap can't take off, has avoided the emergence of hindering the people accident.

Drawings

FIG. 1 is a cross-sectional view of a first embodiment of a smart fuel filler cap provided by the present invention;

FIG. 2 is a cross-sectional view of a second embodiment of the smart fuel filler cap of the present invention with normal air pressure;

FIG. 3 is a cross-sectional view of a second embodiment of the smart fuel filler cap of the present invention with an overpressure;

FIG. 4 is a cross-sectional view of a third embodiment of the smart fuel filler cap provided by the present invention;

FIG. 5 is a cross-sectional view of a fourth embodiment of the smart fuel filler cap provided by the present invention;

fig. 6 is a schematic view of the structure of the ring gear of fig. 5.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention 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 merely illustrative of the invention and are not intended to limit the invention.

This intelligence adds oil cap sets up at the oil pipe mouth of pipe of adding of car oil tank, through screw thread and add oil pipe cooperation sealing connection. Including upper cover, lid body, drive mechanism, actuating mechanism and resetting means, wherein the upper cover surrounds with the lid body and forms the transmission chamber, places the transmission intracavity in the drive mechanism and connects between upper cover and lid body, and lid body lateral wall is provided with the screw thread, with the screw-thread fit sealing connection on the inner wall of oil pipe mouth of pipe department. When installing this oil filling lid on adding oil pipe, the lid body inserts in adding oil pipe, and the upper cover stays outside of the oil pipe, when needs open the oil tank (like when adding oil), through rotating the upper cover that exposes outside adding oil pipe, then drives the lid body rotation in adding oil pipe through drive mechanism to twist off and add oil cover. In order to meet the sealing performance between the oil filling cover and the oil filling pipe, the radius of the upper cover is larger than that of the cover body, a groove is formed between the upper cover and the cover body, and a sealing gasket is arranged in the groove. When this oil filling cover is installed on adding oil pipe, add the mouth of pipe of oil pipe and insert the recess in, compress tightly sealed pad, fill up the clearance that adds between oil pipe and the upper cover recess through sealed pad and realize sealedly.

When the internal pressure of the oil tank is in a normal range, the transmission mechanism is in the first position, the upper cover and the cover body are in transmission connection through the transmission mechanism, and the whole oil filling cover can be screwed off by rotating the upper cover. When the internal pressure of the oil tank is high to a certain degree (namely a preset threshold), the driving mechanism can move the transmission mechanism from the first position to the second position under the action of the pressure, the connection transmission between the upper cover and the cover body is broken, and the rotation of the upper cover cannot be transmitted to the cover body through the transmission mechanism. When the internal pressure of the oil tank is high to a certain degree, the oil filling cover cannot be screwed down by rotating the upper cover, so that the occurrence of accidents of hurting people is avoided.

The reset device is connected with the transmission mechanism, and the restoring force direction of the reset device is opposite to the driving direction of the driving mechanism. After the internal pressure of oil tank drops back to the normal value again, resetting means can drive mechanism and remove to the primary importance from the second place, resumes being connected between upper cover and the lid body for the rotation of upper cover can transmit the lid on one's body through drive mechanism, can twist off this oil filler cap smoothly through rotatory upper cover promptly.

In the first embodiment, please refer to fig. 1.

In the present embodiment, the driving mechanism 5a is electrically controlled to drive the transmission mechanism to separate from the cover body according to the pressure in the oil tank, and specifically includes an upper cover 1a, a cover body 2a, a transmission mechanism 3a, a gasket 4a, a driving mechanism 5a and a reset device 6 a.

Tooth grooves are formed in the inner wall of the upper cover 1a along the axis direction, and the tooth grooves are also formed in the inner wall of the cover body 2a along the axis direction. Upper cover 1a, the coaxial arrangement of lid body 2a and drive mechanism 3a three, drive mechanism 3a outwards extends first connecting portion and second connecting portion along its radial direction, first connecting portion offer with the tooth's socket matched with of upper cover 1a be connected the tooth, the tooth is connected with lid body 2 a's tooth's socket matched with is offered to the second connecting portion, through the cooperation of connecting tooth and tooth's socket, the rotation of upper cover 1a self can transmit for lid body 2a through drive mechanism 3a, it is rotatory to drive lid body 2 a.

The connection mode of the transmission mechanism 3a and the upper cover 1a and the cover body 2a can also adopt transition fit connection relation, and the rotation of the upper cover 1a is transmitted to the cover body 2a by means of the friction force on the contact surface between the transmission mechanism 3a and the upper cover 1a and the cover body 2 a. Compared with the above-mentioned manner of engaging and connecting the tooth socket and the connecting tooth, the manner of engaging and connecting the tooth socket and the connecting tooth is inferior in reliability and durability, and in practical use, the manner of engaging and connecting the tooth socket and the connecting tooth is preferable.

A circle of groove is formed between the upper cover 1a and the cover body 2a, and a sealing gasket 4a is arranged in the groove. This oil filler cap is used for sealing this gap of filling oil between lid and the oil pipe when installing on filling oil pipe.

The driving mechanism 5a includes a sensor 51a, a controller 52a and an actuating mechanism 53a, the sensor 51a is a pressure sensor capable of detecting the pressure inside the tank, and is disposed on the side of the cap body 2a facing the inside of the tank, i.e., the side away from the upper cap 1a, and is in contact with the inside of the filler pipe of the tank, so as to be capable of directly detecting the pressure inside the tank. The controller 52a may be of a selected type, such as a C8051F single chip microcomputer. The actuating mechanism 53a is connected to the transmission mechanism 3a for transmission, and in this embodiment, an electric cylinder is selected to be capable of extending or contracting according to the direction of current. The sensor 51a, the controller 52a and the actuating mechanism 53a are connected to a working circuit through wires, and the circuit is also connected with a power supply which can be externally connected or self-contained.

When the pressure in the oil tank rises, the sensor 51a senses the change of the air pressure, generates an electric signal and transmits the electric signal to the controller 52a, and the controller 52a controls the actuating mechanism 53a to push the transmission mechanism 3a to move towards the upper cover 1a according to the signal until the connecting teeth of the second connecting part are separated from the tooth grooves of the cover body 2 a. The connection between drive mechanism 3a and the lid body 2a is destroyed, and the rotation of upper cover 1a can't pass through drive mechanism 3a and transmit on the lid body 2a, when oil tank internal pressure was too big promptly, can't take off this oil filler lid through rotating upper cover 1a, has realized the protection to personnel.

The return means 6a is a spring in the present embodiment, and may be another elastic member or a driving mechanism such as a motor, which is provided in the upper cover 1a, has one end abutting against the upper cover 1a and the other end abutting against the transmission mechanism 3a, and has an elastic direction opposite to the magnetic force direction of the electromagnet 53 a. When the air pressure in the oil tank returns to normal, the resistance of the air pressure sensor 51a increases, the magnetic force of the electromagnet 53a decreases, and the elastic force of the reset device 6a is larger than the repulsive force of the electromagnet 53a exerted on the transmission mechanism 3 a. The transmission mechanism 3a moves towards the electromagnet 53a, the connecting teeth of the second connecting part are re-engaged with the tooth grooves of the cover body 2a, the connection between the transmission mechanism 3a and the cover body 2a is restored, the rotation of the upper cover 1a can be transmitted to the cover body 2a through the transmission mechanism 3a, and at this time, the oil filling cover can be taken down by screwing the upper cover 1 a.

See fig. 2 and 3 for a second embodiment.

In the present embodiment, the driving mechanism 5b is mechanically driven to separate the transmission mechanism from the cover body according to the pressure in the oil tank, and specifically includes an upper cover 1b, a cover body 2b, a transmission mechanism 3b, a gasket 4b, a driving mechanism 5b, and a reset device 6 b.

Tooth grooves are formed in the inner wall of the upper cover 1b along the axis direction, and the tooth grooves are also formed in the inner wall of the cover body 2b along the axis direction. Upper cover 1b, the lid body 2b and the coaxial arrangement of drive mechanism 3b three, drive mechanism 3b outwards extends first connecting portion 31b and second connecting portion 32b along its radial direction, first connecting portion 31b offer with upper cover 1 b's tooth's socket matched with be connected the tooth, second connecting portion 32b offer with lid body 2 b's tooth's socket matched with be connected the tooth, through the cooperation of connecting tooth and tooth's socket, the rotation of upper cover 1b self can transmit for lid body 2b through drive mechanism 3b, it is rotatory to drive lid body 2 b. The first connection portion 31b and the second connection portion 32b may be integrally formed, or may be divided into a plurality of parts and connected.

In the present embodiment, the transmission mechanism 3b includes a first connecting portion 31b, a second connecting portion 32b, and a jack 33 b. The lower end of the ejector rod 33b is abutted with the driving mechanism 5b, the upper end is abutted with the first connecting part 31b, the second connecting part 32b is sleeved on the ejector rod 33b, the first connecting part 31b and the second connecting part 32b are respectively engaged and connected with tooth grooves in the upper cover 1b and the cover body 2b, and the first connecting part 31b is further connected with the second connecting part 32b in a matching mode.

A circle of groove is formed between the upper cover 1b and the cover body 2b, and a sealing gasket 4b is arranged in the groove. This oil filler cap is used for sealing this gap of filling oil between lid and the oil pipe when installing on filling oil pipe.

The cover body 2b is provided with a through hole 21b communicated with the transmission cavity, and in the embodiment, the driving mechanism 5b is a flexible membrane. The diaphragm can deform under the action of external force to cover the through hole 21b, and the peripheral edge of the diaphragm is hermetically connected with the cover body 2b, so that the communication between the inner cavity of the cover body 2b and the oil tank is isolated. The middle part of the diaphragm abuts against the lower end of the push rod 33 b. When the pressure inside the oil tank rises, the pressure pushes the diaphragm to move toward the inside of the cover body 2b, pushes the push rod 33b to move upward, and further pushes the first connecting portion 31b to move upward, so that the first connecting portion 31b is separated from the second connecting portion 32 b. The connection between the first connecting portion 31b and the second connecting portion 32b is broken, and the rotation of the upper cover 1b cannot be transmitted to the cover body 2b through the transmission mechanism 3b, that is, when the internal pressure of the oil tank is too high, the oil filling cover cannot be taken down by rotating the upper cover 1b, so that the personnel protection is realized.

The returning means 6b is a spring in the present embodiment, and other elastic member or a driving mechanism such as a motor may be used, and is provided in the upper cover 1b, and has one end abutting against the upper cover 1b and the other end abutting against the first connecting portion 31b, and is arranged coaxially with the first connecting portion 31b and the jack 33 b. When the air pressure in the oil tank returns to normal, the pressure applied to the diaphragm is reduced, and the elastic force of the resetting device 6b is larger than the pressure applied to the diaphragm by the gas in the oil tank. The first connecting portion 31b is pushed toward the second connecting portion 32b and the connections are re-engaged. The connection between the first connection portion 31b and the second connection portion 32b is restored, the rotation of the upper cover 1b can be transmitted to the first connection portion 31b through the engagement of the connection teeth and the tooth grooves, the first connection portion 31b can transmit the rotation to the second connection portion 32b through the friction force on the contact surface, the second connection portion 32b is transmitted to the cover body 2b through the engagement of the connection teeth and the tooth grooves, and the oil filler cover can be taken off by screwing the upper cover 1 b.

See fig. 4 for a third embodiment.

In the present embodiment, the driving mechanism 5c is mechanically driven to separate the transmission mechanism from the cover body according to the pressure in the oil tank, and specifically includes an upper cover 1c, a cover body 2c, a transmission mechanism 3c, a gasket 4c, a driving mechanism 5c, and a reset device 6 c.

Tooth grooves are formed in the inner wall of the upper cover 1c along the axis direction, and the tooth grooves are also formed in the inner wall of the cover body 2c along the axis direction. Upper cover 1c, cover body 2c and the coaxial arrangement of drive mechanism 3c three, drive mechanism 3c outwards extends first connecting portion and second connecting portion along its radial direction, first connecting portion offer with upper cover 1 c's tooth's socket matched with be connected the tooth, the second connecting portion offer with cover body 2 c's tooth's socket matched with be connected the tooth, through the cooperation of connecting tooth and tooth's socket, the rotation of upper cover 1c self can transmit for cover body 2c through drive mechanism 3c, it is rotatory to drive cover body 2 c.

The connection mode of the transmission mechanism 3c and the upper cover 1c and the cover body 2c can also adopt transition fit connection relation, and the rotation of the upper cover 1c is transmitted to the cover body 2c by means of the friction force on the contact surface between the transmission mechanism 3c and the upper cover 1c and the cover body 2 c. Compared with the above-mentioned manner of engaging and connecting the tooth socket and the connecting tooth, the manner of engaging and connecting the tooth socket and the connecting tooth is inferior in reliability and durability, and in practical use, the manner of engaging and connecting the tooth socket and the connecting tooth is preferable.

A circle of groove is formed between the upper cover 1c and the cover body 2c, and a sealing gasket 4c is arranged in the groove. This oil filler cap is used for sealing this gap of filling oil between lid and the oil pipe when installing on filling oil pipe.

The cover body 2c is provided with a pipeline part which is a cylindrical cavity and is provided with a through hole 21c communicated with the pipeline part, the driving mechanism 5c comprises a piston 51c and a sealing ring 52c, and the piston 51c is arranged in the cover body 2c and forms a gap with the inner wall of the cover body 2 c. The seal ring 52c is fitted over the piston 51c to seal a gap between the piston 51c and the inner wall of the cover body 2c, and the piston 51c is slidable in the axial direction of the pipe portion. The lower end of the transmission mechanism 3c is connected to the piston 51c in a general abutting manner, or in an integrally formed manner by using a connecting member such as a bolt or a clip.

When the pressure inside the tank rises, the pressure pushes the piston 51c to move towards the inside of the cap body 2c, and the seal ring 52c also moves along with the piston 51c, maintaining airtightness throughout the movement. The driving mechanism 3c is pushed to move towards the upper cover 1c until the connecting teeth of the second connecting part are separated from the tooth grooves of the cover body 2 c. The connection between drive mechanism 3c and the lid body 2c is destroyed, and the rotation of upper cover 1c can't transmit to lid body 2c through drive mechanism 3c on, when oil tank internal pressure was too big promptly, can't take off this oil filler lid through rotating upper cover 1c, has realized the protection to personnel.

The returning means 6c is a spring in the present embodiment, and another elastic member or a driving mechanism such as a motor may be employed, which is provided in the upper cover 1c, has one end abutting against the upper cover 1c and the other end abutting against the first connecting portion 31c, and is disposed coaxially with the piston 51 c. When the gas pressure in the tank returns to normal, the pressure applied to the piston 51c decreases, and the elastic force of the resetting device 6c is larger than the pressure applied to the piston 51c by the gas in the tank. The transmission mechanism 3c moves towards the piston 51c, the connecting teeth of the second connecting part are re-engaged with the tooth grooves of the cover body 2c, the connection between the transmission mechanism 3c and the cover body 2c is restored, the rotation of the upper cover 1c can be transmitted to the cover body 2c through the transmission mechanism 3c, and the oil filling cover can be taken down by screwing the upper cover 1 c.

See fig. 5 and 6 for a fourth example.

In the present embodiment, the driving mechanism 5d also adopts a mechanical manner to drive the transmission mechanism to separate from the cover body according to the pressure in the oil tank, and specifically includes an upper cover 1d, a cover body 2d, a transmission mechanism 3d, a gasket 4d, a driving mechanism 5d and a reset device 6 d.

Tooth grooves are formed in the inner wall of the upper cover 1d along the axis direction, and the tooth grooves are also formed in the inner wall of the cover body 2d along the axis direction. The upper cover 1d, the cover body 2d and the transmission mechanism 3d are coaxially arranged, the transmission mechanism 3d needs to transmit the rotation of the upper cover 1d to the cover body 2d, and the separation of the transmission relation is realized under the action of the driving mechanism 5 d.

Therefore, in this embodiment, the transmission mechanism 3d includes a top rod 31d, a gear ring 32d and an insert plate 33d, the bottom end of the top rod 31d is connected to the driving mechanism 5d, and the top end is connected to the insert plate 33d, and the connection manner may be general abutment, connection pieces such as bolts and buckles, or connection by integral molding. The gear ring 31d includes a gear ring body 311d and at least one elastic arm 312d, the gear ring body 311d is fixedly connected to the upper cover 1d, one end of the elastic arm 312d is fixedly connected to the gear ring body 311d, and when there are a plurality of elastic arms 312d, the elastic arms 312d are uniformly distributed around the gear ring body 311 d. Elastic joint arm 312d forms the ring gear clearance with ring gear main part 311d, and elastic joint arm 312d has been kept away from one side in ring gear clearance and has been seted up and connect the tooth's socket that matches with being connected to corresponding seting up on the lid body 2d inner wall to there is the clearance between connection tooth and the tooth's socket. The insert plate 33d includes ejector pins 331d in one-to-one correspondence with the gaps of the toothed rings, and the radius of the ejector pins 331d is gradually increased along the moving direction of the drive transmission mechanism 3d of the drive mechanism 5 d. When the thimble 331d is inserted into the gear ring gap, the elastic arm 312d is pressed and deformed toward the tooth space, so that the connecting tooth is engaged with the tooth space, and the connection relationship between the cover body 2d and the transmission mechanism 3d is formed. When the driving mechanism 5d pushes the thimble 331d to be pulled out from the gear ring gap, the elastic joint arm 312d is restored to the original state, so that the connecting teeth and the tooth grooves are separated, and the connection relationship between the cover body 2d and the transmission mechanism 3d disappears.

A circle of groove is formed between the upper cover 1d and the cover body 2d, and a sealing gasket 4d is arranged in the groove. This oil filler cap is used for sealing this gap of filling oil between lid and the oil pipe when installing on filling oil pipe.

Through-hole 21d has been seted up towards one side of oil tank to lid body 2d for inside lid body 2d passes through-hole 21d intercommunication oil tank, in this embodiment, actuating mechanism 5d is the diaphragm. The diaphragm has elasticity, covers the through hole 21d, and the peripheral edge is connected with the inner wall of the cover body 2d in a sealing manner, so that the communication between the inner cavity of the cover body 2d and the oil tank is isolated. The middle part of the diaphragm is abutted against the lower end of the ejector rod 33 d. When the pressure in the oil tank rises, the pressure pushes the diaphragm to move towards the inside of the cover body 2d, the push rod 31d is pushed to move upwards, and the inserting plate 33d is further pushed to move upwards, so that the push needle 331d is pulled out from the gear ring gap. Elastic joint arm 312d warp the recovery, connects tooth and tooth's socket separation, and on the rotation of upper cover 1d can't transmit lid body 2d through ring gear 32d, when oil tank internal pressure was too big promptly, can't take off this oil filler cap through rotating upper cover 1d, realized the protection to personnel.

Similar to the first embodiment, the driving mechanism 5d may also adopt an electrically controlled driving structure to obtain similar technical effects; similar to the embodiment, the driving mechanism 5d may also take the form of a piston and a sealing ring to obtain similar technical effects.

The returning means 6d is a spring in the present embodiment, and other driving mechanisms such as an elastic member or a motor may be adopted, and one end of the returning means is abutted against the upper cover 1d and the other end is abutted against the first connecting portion 31d and is arranged coaxially with the first connecting portion 31d and the push rod 33 d. When the air pressure in the oil tank returns to normal, the pressure applied to the diaphragm is reduced, and the elastic force of the resetting device 6d is larger than the pressure applied to the diaphragm by the gas in the oil tank. The insert plate 33d is pushed toward the ring gear 32d and the thimble 331d is reinserted into the ring gear gap. The connecting teeth of the elastic joint arm 312d are engaged with the tooth grooves again, and the rotation of the upper cover 1d can be transmitted to the cover body 2d through the engagement of the connecting teeth and the tooth grooves, so that the oil filler cover can be taken down by screwing the upper cover 1 d.

Implement the embodiment of the utility model provides a, following beneficial effect has: the utility model discloses an intelligence adds oil cap's upper cover is connected through drive mechanism and lid body, and when oil tank internal pressure reached the threshold value, actuating mechanism can remove the second position from the primary importance for be connected through drive mechanism between upper cover and the lid body and destroyed, thereby when rotating the upper cover and try to take off this adds oil cap, the rotation of upper cover can't transmit to the lid on one's body, makes this add oil cap can't take off, has avoided the emergence of hindering the people accident.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. An intelligent fuel filler cap, comprising: upper cover, lid body, drive mechanism and actuating mechanism, the upper cover with the lid body is connected, surrounds and forms the transmission chamber, place in the drive mechanism in the transmission chamber, and connect the upper cover with between the lid body, actuating mechanism with drive mechanism connects, when the oil tank internal pressure reaches the preset threshold value, actuating mechanism drives drive mechanism moves the second position from the primary importance, works as drive mechanism is in during the primary importance, the upper cover with connect through the drive mechanism transmission between the lid body, works as drive mechanism is in during the second position, the upper cover with the separation is connected in the transmission between the lid body.

2. The smart fuel cap of claim 1 further comprising a reset device coupled to the transmission, the reset device being capable of moving the transmission from the second position to the first position when the pressure in the fuel tank is less than the threshold.

3. The smart fuel cap of claim 2 wherein the transmission mechanism and the drive mechanism are disposed toward one end of the cap body.

4. The intelligent oil filling cover according to claim 3, wherein the driving mechanism comprises an air pressure sensor, a controller and an actuating mechanism, the air pressure sensor is electrically connected with the actuating mechanism, the air pressure sensor is arranged on one side of the cover body facing the oil tank and used for detecting the air pressure inside the oil tank, the controller can control the actuating mechanism to move according to the value of the sensor, and the actuating mechanism is connected with the transmission mechanism for transmission.

5. The smart fuel cap of claim 4, wherein the actuating mechanism is an electric cylinder.

6. The intelligent oil filling cover according to claim 3, wherein a through hole communicated with the transmission cavity is formed in the cover body, the driving mechanism is a flexible membrane covering the through hole, the periphery of the driving mechanism is hermetically connected with the cover body, one end of the transmission mechanism is abutted against the membrane, and the other end of the transmission mechanism is abutted against the reset device.

7. The intelligent fuel cap of claim 3, wherein a pipe portion is formed on the cap body, and a through hole communicating with the pipe portion is formed in the cap body, the driving mechanism includes a piston and a sealing ring, the piston is disposed in the pipe portion, the sealing ring is sleeved on the piston for sealing a gap between the piston and an inner wall of the cap body, the piston is capable of moving axially in the pipe portion, and one end of the transmission mechanism abuts against the piston and the other end abuts against the resetting device.

8. The intelligent oil filling cover according to claim 6 or 7, wherein the transmission mechanism further comprises a connecting part arranged in the middle of the transmission mechanism, and the connecting part is detachably connected with the inner wall of the cover body.

9. The intelligent oil filling cover according to claim 8, wherein a tooth groove is formed in the inner wall of the cover body along the movement direction of the transmission mechanism, and the connecting portion is provided with connecting teeth which are connected with the tooth groove in a matched manner.

10. The smart fuel cap of claim 9, wherein the connecting portion includes a ring gear, the ring gear includes a ring gear body and at least one flexible joint arm, the ring gear body is fixedly connected to the upper cap, one end of the flexible joint arm is fixedly connected to the ring gear body and forms a ring gear gap with the ring gear body, the flexible joint arm has a connecting tooth on a side away from the ring gear gap, the transmission mechanism further includes a thimble inserted into the ring gear gap, and a radius of the thimble increases gradually along a direction of the driving mechanism driving the transmission mechanism to move.

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