Electric fuel tank lock

Abstract

The invention discloses an electric fuel tank lock, and relates to the technical field of electronic locksets, the electric fuel tank lock comprises a lock body seat and a spring bolt movably mounted on the lock body seat, the lock body seat is provided with a first limiting piece, and the spring bolt is provided with a limiting space matched with the first limiting piece; the first buffering piece is movably installed on the spring bolt and comprises a first cohesion part, a second cohesion part is arranged on the spring bolt, the first cohesion part and the second cohesion part are installed in a cohesion mode, and the first buffering piece moves to drive the spring bolt to move. According to the electronic control oil tank lock, the first buffering piece is arranged on the spring bolt, the first buffering piece achieves the buffering function through the elastic piece, it is guaranteed that the electromagnetic valve can be conducted at the first time under the condition of rapid unlocking, and the phenomenon that unlocking is abnormal due to the fact that a traditional electronic control oil tank lock is operated too fast is optimized.

Description

Technical Field

[0001] The present invention relates to the field of electronic locks, and in particular to an electric fuel tank lock. Background Art

[0002] Existing motorcycle fuel tank locks are mainly opened by mechanical keys. When refueling, the user needs to take out the mechanical key, align it with the keyhole, insert the mechanical key, and then unlock the tank. The process is complicated and inconvenient.

[0003] There is also a knob-type fuel tank cap currently available, which can be opened by simply rotating the cap; although it is easy to operate, it cannot lock the fuel tank, and sometimes passers-by can open the fuel tank when the car is parked on the roadside.

[0004] There is another kind of electronically controlled fuel tank lock for motorcycles on the market. When the cover is opened, the cover pushes the lock tongue, and the lock tongue pulls the lock rod. When the lock rod moves, the micro switch is pressed and driven, and then the micro switch is powered on to drive the solenoid valve to extend and retract to unlock the lock rod, and then the lock rod avoids the lock tongue to complete the opening of the fuel tank cover. During this period, the cover and the lock tongue are reset by the spring. If the user operates too quickly, the micro switch contacts are not energized in time, which will cause the lock rod and the solenoid valve to be stuck due to interference, so that the fuel tank lock cannot be unlocked, and the work is unreliable; due to the complicated structure principle and action, the parts have high precision requirements, otherwise they are easy to fail, which reduces the user experience; At the same time, the electronic control structure of this type of electronic fuel tank lock is made on the fuel tank of the motorcycle body, occupying the space of the motorcycle body and not utilizing the space inside the fuel tank lock cover; when unlocking and waiting for refueling, in order to keep the fuel tank lock not locked, the solenoid valve is always energized during the waiting period for refueling, and the battery power is always consumed during the waiting period for refueling, which wastes resources and cannot guarantee safety.

[0005] On the other hand, the hinge structure of this type of electronically controlled fuel tank lock lacks a damping mechanism. When the fuel tank lock is opened or closed, it may swing rapidly due to inertia or external force, causing collision with other components, which can easily damage the paint surface and generate noise, and also affect the service life of the entire fuel tank lock. Summary of the invention

[0006] The present invention aims to solve one of the technical problems existing in the prior art.

[0007] The present application provides an electric fuel tank lock, including a fuel tank cover assembly, the fuel tank cover assembly including the following structure: A lock body seat, and a lock tongue movably mounted on the lock body seat, wherein the lock body seat is provided with a first limiting piece, and the lock tongue is provided with a limiting space cooperating with the first limiting piece; A first buffer member movably mounted on the lock tongue, the first buffer member comprising a first embracing portion, the lock tongue being provided with a second embracing portion, the first embracing portion and the second embracing portion being mounted in an embracing manner, and the displacement of the first buffer member drives the displacement of the lock tongue; The lock tongue is also provided with a first mounting groove and a second mounting groove; A first elastic member, one end of the first elastic member is fixed to the first buffer member, and the other end of the first elastic member is fixed to the first mounting groove; A second elastic member and a second limiting member, wherein the second elastic member is installed in the second installation groove, the second limiting member is fixed to the lock body seat, one end of the second elastic member is fixed to the second limiting member, and the other end of the second elastic member is fixed to one end of the second installation groove; wherein the elastic force of the first elastic member is greater than that of the second elastic member; The solenoid valve comprises a solenoid valve body and a front end rod of the solenoid valve, wherein the front end rod of the solenoid valve is in an extended state before being energized, and in the extended state, the front end rod of the solenoid valve acts as a third limiter to block one end of the unlocking movement direction of the lock tongue; A micro switch, the micro switch is in contact with and connected to the first buffer member, and is electrically connected to the solenoid valve; A face cover and a prying cover installed on the face cover, one end of the prying cover is a driving end and the other end is a movable end, the driving end drives the movable end to push the first buffer member, after the first buffer member is pushed, the first elastic member and the second elastic member drive the lock tongue to move toward the front end rod direction of the solenoid valve, and the micro switch senses the displacement state of the first buffer member and energizes the solenoid valve to release the front end rod of the solenoid valve.

[0008] Preferably, the first buffer member has two first bosses on its inner side, the lock tongue is provided with a first groove cooperating with the first boss, the first groove and the first boss are in an embraced state, and there is a buffer distance between the inner end faces of the first boss and the first groove in the unlocking movement direction.

[0009] Preferably, a protrusion is provided at one end of the lock tongue in the unlocking movement direction, and a second groove which is in contact and connected with the front end rod of the solenoid valve is provided at the top end of the protrusion.

[0010] Preferably, a rotating shaft is arranged on the surface cover, a movable end of the cover is movably connected to the rotating shaft, and a protrusion close to the first buffer member is arranged on the movable end.

[0011] Preferably, it also includes an outer ring fixed to the fuel tank, one side of the outer ring is provided with a lock tongue groove, the lock tongue is located in the lock tongue groove when locked, and the other side of the outer ring is provided with a hinge structure rotatably connected to one side of the fuel tank cover assembly.

[0012] Preferably, the hinge structure includes a cylindrical pin arranged on the outer ring, and a pin groove arranged on the fuel tank cover assembly and cooperating with the cylindrical pin.

[0013] Preferably, the cylindrical pin is hollow, and a connecting hole is provided on one side of the middle part; a threading hole is provided on the lock body seat, one end of the threading hole is connected to the pin groove, and cooperates with the inner cavity of the cylindrical pin for threading the wire harness.

[0014] Preferably, the hinge structure also includes a flip block installed on the fuel tank cover assembly, which is movably installed in the lock body seat, one end of which is connected to the fuel tank cover assembly, and the other end is connected to the cylindrical pin through a pin groove; the first damping structure and the second damping structure are respectively arranged between the two sides of the flip block and the inner walls of the two sides of the lock body seat, providing damping force when the flip block flips.

[0015] Preferably, the first damping structure and the second damping structure both include an arc groove arranged on the side wall of the lock body seat, the arc groove being concentric with the axis of the cylindrical pin; a damping ring arranged in the arc groove; a first screw, which passes through the damping ring and is connected to the flip block through a screw hole, and a spring is installed between the outer end and the outer wall of the damping ring; a washer is provided between the spring and the outer wall of the damping ring; a second screw, which is installed on the front side of the lock body seat through a mounting hole, the mounting hole is connected to the arc groove, and tightening the second screw can compensate for the wear of the inner ring of the damping ring; The inner side wall of the damping ring and the outer side wall of the flip block are in sliding friction, and the middle section of the first screw and the inner ring of the damping ring are in sliding friction.

[0016] Beneficial effects: Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: A first buffer is arranged on the lock tongue, and the first buffer realizes a buffering function through an elastic member, thereby ensuring that the solenoid valve can be turned on immediately in the case of rapid unlocking, thereby optimizing the phenomenon of abnormal unlocking caused by excessively rapid operation of a traditional electric control tank lock.

[0017] At the same time, the electric control structure (functional operating mechanism) is installed inside the fuel tank cap to optimize the space. Due to the limited space on the edge of the fuel tank, the designer considers placing the electric control structure inside the fuel tank cap. While maintaining the structure of the traditional electric control fuel tank lock, the function and strength remain unchanged or even better. Compared with the more complex structure of the traditional electric control fuel tank lock, the coordination of the buffer and the lock tongue makes the overall structure smaller, simpler and more compact, which provides convenience for the structural realization of installing the electric control structure inside the fuel tank cap.

[0018] Further as a preferred solution, the hollow hole and the internal hole of the cylindrical pin are used to thread the wiring harness, which effectively solves the wiring problem of the internal electronic control structure of the fuel tank cap.

[0019] When the fuel tank cover assembly is opened or closed, the flip block flips in the lock body seat, the inner wall of the damping ring rubs against the side wall of the flip block, and the gasket rubs against the outer wall of the damping ring, and the middle section of the first screw rubs against the inner ring of the damping ring, providing damping force for the opening or closing process of the fuel tank cover assembly, preventing the fuel tank cover assembly from colliding with other parts due to rapid inertia during the opening and closing process, which can effectively reduce noise, protect the paint surface, and increase the service life of the entire fuel tank lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A structural diagram of an electric fuel tank lock in an open state according to an embodiment of the present invention; Figure 2 A structural diagram of the closed state of the electric fuel tank lock proposed in an embodiment of the present invention; Figure 3 A schematic diagram of the structure inside the fuel tank cap assembly provided by an embodiment of the present invention; Figure 4 A cross-sectional view of an electric fuel tank lock according to an embodiment of the present invention; Figure 5 A front structural diagram of a lock tongue and a first buffer member of an electric fuel tank lock according to an embodiment of the present invention; Figure 6 A reverse structural diagram of a lock tongue and a first buffer member of an electric fuel tank lock according to an embodiment of the present invention; Figure 7 A partial three-dimensional diagram of the lock body seat, the damping structure and the pressing member of the electric fuel tank lock proposed in an embodiment of the present invention; Figure 8 A partial three-dimensional diagram of the flip block and damping structure of the electric fuel tank lock proposed in an embodiment of the present invention; Fig. 9 This is a front structural diagram of the pressing member and the retaining member of the electric fuel tank lock proposed in an embodiment of the present invention; Fig.10 This is a reverse structural diagram of the pressing member and the retaining member of the electric fuel tank lock proposed in an embodiment of the present invention.

[0021] Reference numerals 100-tank cover assembly, 200-outer ring, 10-lock body seat, 101-first limiter, 20-pressure cover, 201-limiting space, 202-protrusion, 3-pin groove, 30-first spring washer, 40-second spring washer, 401-encapsulation screw, 50-cylindrical pin, 60-face cover, 601-rotating shaft, 602-protrusion, 603-threading hole, 70-lock tongue, 701-first mounting groove, 702-second mounting groove, 703-first groove, 704-second groove, 80-push cover, 801-driving end, 802-movable end, 90-first elastic member, 110-first buffer member, 11-first embracing portion, 1101-first boss, 1102 -buffer rod, 120-second elastic member, 121-second limit member, 131-flip block, 132-damping structure, 1321-arc groove, 1322-damping ring, 1323-first screw, 1324-washer, 1325-second screw, 140-solenoid valve, 1401-front end rod of solenoid valve, 150-circuit board, 160-micro switch, 1601-paddle, 17-retractable member, 171-housing, 172-elastic plate, 173-blocking block, 174-outer groove, 175-matching block, 176-reset block, 18-pressing member, 181-rotating groove, 182-rotating shaft, 183-circular plate, 184-top block, 185-paddle. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0023] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0024] The electric fuel tank lock provided in the embodiment of the present application is described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0025] Embodiment 1: like Figures 1 to 6As shown, an embodiment of the present application provides an electric fuel tank lock, including a fuel tank cover assembly 100 and an outer ring 200, the fuel tank cover assembly 100 includes a lock body seat assembly and a functional operating mechanism in the lock body seat assembly, wherein the lock body seat assembly includes a lock body seat 10, a pressure cover 20, a first spring washer 30, a second spring washer 40, a cylindrical pin 50 and a face cover 60.

[0026] The functional operating mechanism installed on the fuel tank cap assembly 100 is as follows: A lock body base 10, and a lock tongue 70 movably mounted on the lock body base 10, wherein the lock body base 10 is provided with a first limiting member 101, and the lock tongue 70 is provided with a limiting space 201 cooperating with the first limiting member 101; Exemplarily, the first limiting member 101 is implemented as a boss fixed to the lock body seat, and the limiting space 201 is implemented as a movable groove slidably matched with the boss.

[0027] The first buffer 110 is movably mounted on the lock tongue 70. The first buffer 110 includes a first embracing portion 11. The lock tongue 70 is provided with a second embracing portion 71. The first embracing portion 11 and the second embracing portion 71 are installed in an embracing manner. The displacement of the first buffer 110 drives the lock tongue to move, that is, horizontal displacement along the unlocking direction. The lock tongue 70 is also provided with a first installation groove 701 and a second installation groove 702.

[0028] The first elastic member 90, one end of the first elastic member 90 is fixed to the first buffer member 110, and the other end is fixed to the first mounting groove 701; the second elastic member 120 and the second stopper 121, the second elastic member 120 is installed in the second mounting groove 702, the second stopper 121 is fixed to the lock body seat 10 and one end of the second elastic member 120 is fixed to the second stopper 121, and the other end of the second elastic member 120 is fixed to one end of the second mounting groove 702; wherein the elastic force of the first elastic member 90 is greater than that of the second elastic member 120. The first mounting groove 701 and the second mounting groove 702 mentioned here are the names of the installation spaces of the first elastic member and the second elastic member, and are not limited to specific shapes and structures.

[0029] The solenoid valve 140 includes a solenoid valve body and a solenoid valve front end rod 1401. The solenoid valve front end rod 1401 is in an extended state before being energized. In the extended state, the solenoid valve front end rod 1401 acts as a third limiter to block one end of the unlocking movement direction of the lock tongue 70.

[0030] The micro switch 160 is in contact with the first buffer 110 and is electrically connected to the solenoid valve 140; specifically, the paddle 1601 of the micro switch 160 is in contact with the first buffer 110. When the first buffer 110 moves, the micro switch 160 can quickly respond to turn on the solenoid valve.

[0031] The face cover 60 and the prying cover 80 mounted on the face cover 60, one end of the prying cover 80 is the driving end 801, and the other end is the movable end 802, the driving end 801 drives the movable end 802 to push the first buffer 110, and the first buffer 110 pushes and drives the lock tongue 70 to move toward the direction of the front end rod 1401 of the electromagnetic valve through the first elastic member 90 and the second elastic member 120, and the micro switch 160 senses the displacement state of the first buffer 110 and energizes the electromagnetic valve 140 to release the front end rod 1401 of the electromagnetic valve. That is, the front end rod 1401 of the electromagnetic valve in the original locked state is extended, so that the front end of the lock tongue 70 is blocked and cannot move, and when the first buffer 110 touches the micro switch 160 and energizes, the electromagnetic valve is attracted, and the obstruction state is cancelled, thereby opening the fuel tank cover assembly 100.

[0032] The specific installation method of the flip cover 80 is as follows: a rotating shaft 601 is provided on the surface cover 60, and a movable end 802 of the flip cover 80 is movably connected to the rotating shaft 601, and the movable end 802 is provided with a protrusion 602 close to the first buffer 110. The existence of the protrusion enables the flip cover 80 to effectively push the first buffer 110 after being moved.

[0033] In a preferred solution, a protrusion 202 is provided at one end of the lock tongue 70 in the unlocking movement direction, and a second groove 704 is provided at the top end of the protrusion 202 to be in contact with the front end rod 1401 of the solenoid valve.

[0034] Among them, the first elastic member 90 and the second elastic member 120 are implemented as a first spring and a second spring, wherein the second spring is provided with two groups of springs, and the first spring is located between the two groups of second springs; two groups of second limit members are provided corresponding to the lock body seat, and two groups of second installation grooves 7 are provided on the lock tongue.

[0035] Specifically, the first buffer 110 includes a buffer rod 1102 and a first embracing portion 11. The first buffer has two first bosses on its inner side. It can be understood that the first embracing portion 11 includes a first boss 1101. The lock tongue 70 is provided with a first groove 703 that matches the first boss 1101. The first groove 703 and the first boss 1101 are in an embracing state, and there is a buffer distance between the inner end faces of the first boss 1101 and the first groove 703 in the unlocking movement direction. The buffer rod 1102 is a position that directly receives the push. The micro switch is triggered at the first moment of receiving the push. At the same time, it is pressed by the first elastic member, and then pressed by the second elastic member to push the lock tongue to move. When the lock tongue moves to a certain distance, and the distance reaches the buffer distance, the first embracing portion 11 and the second embracing portion 71 continue to drive the lock tongue to move. In this way, an effective buffer mechanism that will not go wrong is achieved. At the same time, after the unlocking is completed, the first elastic member and the second elastic member play a role in resetting. There is an existing technology that sets two sets of springs, and the lock tongue connecting spring plays a buffering role. However, the disadvantages of this design are also very obvious. The two sets of springs will respond quickly after being pushed. Even if there is a certain buffer, the speed of the lock tongue's forward displacement and the response time will still not be perfectly matched, resulting in a stuck phenomenon. The setting of the first elastic member of this solution, combined with the buffer distance between the first boss and the end face of the first groove, solves this problem very well. At the same time, since the elastic force of the second elastic member is greater, the reset ability after unlocking is also guaranteed.

[0036] The fuel tank cap assembly 100 also includes a circuit board, the solenoid valve and the micro switch are electrically connected through the circuit board, and the solenoid valve 140 and the circuit board 150 have a waterproof potting structure. The solenoid valve 140, the circuit board 150 and other waterproof parts are potted, which is more reliable than the rubber pad of the traditional fuel tank lock.

[0037] The pressure cover 20 is installed on the oil tank. The first spring washer 30 is installed on the upper surface of the pressure cover 20. The second spring washer 40 is arranged at the bottom of the lock body seat in cooperation with the first spring washer 30. The spring washer disclosed here is considered to be an elastic sealing ring, which plays a sealing role. It includes a universal spring washer and a sealing ring. The universal spring washer is generally 0.3mm thick and is generally made of metal 65Mn or a spring washer made by a stainless steel heat treatment process. It is not easy to be damaged and has better corrosion resistance; the sealing ring is generally made of rubber material and has better sealing performance. At the same time, the packaging structure of the lock body seat and the face cover in the present application may affect the packaging screw 401 when the oil vapor rises upward, or enter the interior of the oil tank cover assembly 100 from the packaging screw 401. A sealing gasket structure is adopted, and its coverage area is wider than that of the sealing ring. It can directly wrap the screw part, which solves the sealing problem well.

[0038] The outer ring 200 is fixed to the fuel tank, and one side of the outer ring 200 is provided with a locking tongue groove. When locked, the locking tongue 70 is located in the locking tongue groove. The other side of the outer ring 200 is provided with a hinge structure rotatably connected to one side of the fuel tank cover assembly 100.

[0039] The hinge structure includes a cylindrical pin 50 disposed on the outer ring 200 , and a pin groove 3 disposed on the fuel tank cover assembly 100 and matched with the cylindrical pin 50 .

[0040] The cylindrical pin 50 is hollow, and a connecting hole is provided on one side of the middle part; a threading hole 603 is provided on the lock body seat 10, and one end of the threading hole 603 is connected to the pin groove 3, and cooperates with the inner cavity of the cylindrical pin 50 for threading the wire harness.

[0041] The hinge structure also includes a flip block 131 installed on the fuel tank cover assembly 100, which is movably installed in the lock body seat 10, one end of which is connected to the fuel tank cover assembly 100, and the other end is connected to the cylindrical pin 50 through the pin groove 3; a pair of damping structures 132 are respectively arranged between the two sides of the flip block 131 and the inner walls of the two sides of the lock body seat 10, to provide damping force when the flip block 131 flips.

[0042] The pair of damping structures 132 each include an arc groove 1321 disposed on the side wall of the lock body seat 10, the arc groove 1321 being concentric with the axis of the cylindrical pin 50; a damping ring 1322 disposed in the arc groove 1321; a first screw 1323, which passes through the damping ring 1322 and is connected to the flip block 131 through a screw hole, and a spring is installed between the outer end and the outer wall of the damping ring 1322; a washer 1324 is provided between the spring and the outer wall of the damping ring 1322; a second screw 1325, which is installed on the front side of the lock body seat 10 through a mounting hole, the mounting hole is connected to the arc groove 1321, and tightening the second screw 1325 can compensate for the wear of the inner ring of the damping ring 1322; The inner wall of the damping ring 1322 and the outer wall of the flip block 131 are in sliding friction, and the middle section of the screw and the inner ring of the damping ring 1322 are in sliding friction.

[0043] In actual use, the user can adjust the tightening degree of the first screw 1323 and the second screw 1325 according to his / her needs to obtain a damping feel of different strengths.

[0044] The hinge structure also includes a pair of stoppers 17, which are arranged between the flip block 131 and the two sides of the lock body seat 10 to prevent the fuel tank cover assembly 100 from closing to the outer circle. Both include a shell 171 embedded in the inner wall of the lock body seat 10 through an inner groove. The top and one end of the shell 171 are open, and an elastic plate 172 is arranged on the inner wall of the other end. The elastic plate 172 extends along the inner cavity of the shell 171 and is provided with a plurality of blocking blocks 173 on the top. The blocking blocks 173 have a flat surface on one side facing the inner end side wall of the lock body seat 10 and an inclined surface on the other side; a pair of outer grooves 174 are symmetrically arranged on the opposite side of the flip block 131 On the wall, corresponding to each inner groove, a plurality of matching blocks 175 are arranged inside, and each matching block 175 has an inclined surface on one side facing the inner end side wall of the lock body seat 10, and a flat surface on the other side; a pair of reset blocks 176 are symmetrically fixed on the inner side of the other end of the flip block 131, and the flip block 131 is also U-shaped; a pair of pressing members 18 are rotatably mounted at one end of the inner groove, and cooperate with the corresponding outer groove 174 and the reset block 176, and are used to press the free end of each elastic plate 172 when the fuel tank cover assembly 100 needs to be closed, so that each blocking block 173 is separated from each matching block 175, and the fuel tank cover assembly 100 is reset after closing; When the fuel tank cover assembly 100 is opened (when flipped clockwise), the inclined surfaces of each blocking block 173 face the inclined surfaces of each matching blocking block 175. When the fuel tank cover assembly 100 needs to be closed (when flipped counterclockwise), the planes of each blocking block 173 face the planes of each matching blocking block 175, so that after the fuel tank cover assembly 100 is fully opened, it cannot be closed directly, preventing the fuel tank cover assembly 100 from being closed due to accidental touch.

[0045] The pressing member 18 includes a rotating groove 181, which is arranged at one end of the inner groove, and a rotating shaft 182 is rotatably installed inside. A circular plate 183 is fixed on the upper end of the rotating shaft 182; a top block 184 is arranged on one side of the bottom surface of the circular plate 183, and both end surfaces of the top block 184 are inclined; a lever 185 is arranged on one side of the top surface of the circular plate 183. Before closing the fuel tank cover assembly 100, the fuel tank cover assembly 100 is pushed in the opening direction, so that the inner end of the outer groove 174 pushes the lever 185, and the top block 184 pushes the free end of the elastic plate 172 downward, and each blocking block 173 and each matching block 175 are separated, and then the fuel tank cover assembly 100 is pushed in the closing direction to complete the closing, and the reset block 176 moves the lever 185, and the top block 184 is separated from the elastic plate 172, and the elastic plate 172 is reset.

[0046] The rotating groove 181 is connected to one end of the inner groove, and a recessed groove is provided at the free end of the elastic plate 172. One side of the circular plate 183 slides in cooperation with the recessed groove. Both sides of the corresponding end of the shell 171 are also provided with notches for sliding cooperation with the circular plate 183 and the top block 184, so that the top block 184 can enter and exit the inner cavity of the shell 171, and cooperate with the recessed groove at the free end of the elastic plate 172 to press the free end of the elastic plate 172 to sink.

[0047] Before the fuel tank cover assembly 100 needs to be closed, it is first flipped in the opening direction so that the inner end of the outer groove 174 on the flip block 131 pushes the lever 185, controls the circular plate 183 to rotate, and makes the top block 184 rotate toward the elastic plate 172, pushing the free end of the elastic plate 172 into the shell 171. When the fuel tank cover assembly 100 is closed, the reset block 176 pushes the lever 185, the circular plate 183 is reversed, the top block 184 is away from the elastic plate 172, and the elastic plate 172 is reset under its own elastic action.

[0048] It should be noted that, in this article, the term "comprises", "includes" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0049] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. An electric fuel tank lock, characterized in that: The fuel tank cover assembly includes the following structure: A lock body seat, and a lock tongue movably mounted on the lock body seat, wherein the lock body seat is provided with a first limiting piece, and the lock tongue is provided with a limiting space cooperating with the first limiting piece; A first buffer member movably mounted on the lock tongue, the first buffer member comprising a first embracing portion, the lock tongue being provided with a second embracing portion, the first embracing portion and the second embracing portion being mounted in an embracing manner, and the displacement of the first buffer member drives the displacement of the lock tongue; The lock tongue is also provided with a first mounting groove and a second mounting groove; A first elastic member, one end of the first elastic member is fixed to the first buffer member, and the other end of the first elastic member is fixed to the first mounting groove; A second elastic member and a second limiting member, wherein the second elastic member is installed in the second installation groove, the second limiting member is fixed to the lock body seat, one end of the second elastic member is fixed to the second limiting member, and the other end of the second elastic member is fixed to one end of the second installation groove; wherein the elastic force of the first elastic member is greater than that of the second elastic member; It also includes an unlocking component, which is used to move the first buffer member to push the lock tongue to retract into the lock body seat.

2. The electric fuel tank lock according to claim 1, characterized in that: The unlocking component includes a solenoid valve, including a solenoid valve body and a front end rod of the solenoid valve. The front end rod of the solenoid valve is in an extended state before being energized, and in the extended state, the front end rod of the solenoid valve acts as a third limiter to block one end of the unlocking movement direction of the lock tongue; A micro switch, the micro switch is in contact with and connected to the first buffer member, and is electrically connected to the solenoid valve; A face cover and a prying cover installed on the face cover, one end of the prying cover is a driving end and the other end is a movable end, the driving end drives the movable end to push the first buffer member, after the first buffer member is pushed, the first elastic member and the second elastic member drive the lock tongue to move toward the front end rod direction of the solenoid valve, and the micro switch senses the displacement state of the first buffer member and energizes the solenoid valve to release the front end rod of the solenoid valve.

3. The electric fuel tank lock according to claim 1, characterized in that: The first buffer member has two first bosses on its inner side, and the lock tongue is provided with a first groove matched with the first boss. The first groove and the first boss are in an embraced state, and there is a buffer distance between the inner end faces of the first boss and the first groove in the unlocking movement direction.

4. The electric fuel tank lock according to claim 1, characterized in that: A protrusion is arranged at one end of the lock tongue in the unlocking movement direction, and a second groove which is in contact with and connected to the front end rod of the electromagnetic valve is arranged at the top end of the protrusion.

5. The electric fuel tank lock according to claim 2, characterized in that: The surface cover is provided with a rotating shaft, the movable end of the cover is movably connected to the rotating shaft, and the movable end is provided with a protrusion close to the first buffer member.

6. The electric fuel tank lock according to claim 1, characterized in that: It also includes an outer ring fixed to the fuel tank, one side of the outer ring is provided with a lock tongue groove, when locked, the lock tongue is located in the lock tongue groove, and the other side of the outer ring is provided with a hinge structure rotatably connected to one side of the fuel tank cover assembly.

7. The electric fuel tank lock according to claim 6, characterized in that: The hinge structure comprises a cylindrical pin arranged on the outer ring, and a pin groove arranged on the fuel tank cover assembly and matched with the cylindrical pin.

8. The electric fuel tank lock according to claim 7, characterized in that: The cylindrical pin is hollow, and a connecting hole is provided on one side of the middle part; a threading hole is provided on the lock body seat, one end of the threading hole is connected to the pin groove, and cooperates with the inner cavity of the cylindrical pin for threading the wire harness.

9. The electric fuel tank lock according to claim 6, characterized in that: The hinge structure also includes a flip block installed on the fuel tank cover assembly, which is movably installed in the lock body seat, one end of which is connected to the fuel tank cover assembly, and the other end is connected to the cylindrical pin through a pin groove; the first damping structure and the second damping structure are respectively arranged between the two sides of the flip block and the inner walls of the two sides of the lock body seat, providing damping force when the flip block flips.

10. The electric fuel tank lock according to claim 9, characterized in that: The first damping structure and the second damping structure both include an arc groove arranged on the side wall of the lock body seat, the arc groove being concentric with the axis of the cylindrical pin; and a damping ring arranged in the arc groove; A first screw passes through the damping ring and is connected to the flip block through a screw hole, and a spring is installed between the outer end and the outer wall of the damping ring; a washer is provided between the spring and the outer wall of the damping ring; a second screw is installed on the front side of the lock body seat through a mounting hole, and the mounting hole is connected to the arc groove, and tightening the second screw can compensate for the wear of the inner ring of the damping ring; The inner wall of the damping ring and the outer wall of the flip block are in sliding friction, and the middle section of the screw and the inner ring of the damping ring are in sliding friction.

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