Locking fuel tank cap lock

Abstract

The present application relates to a locking type fuel tank cap lock applied to the field of fuel tank, comprising a positioning ring fixedly installed on the upper end of the fuel tank mouth of a vehicle, a cover shell hingedly connected to the upper end of the positioning ring, and a fuel tank cap locking monitoring system carried on the central control end of the vehicle, which cooperates with a locking guide rod, an inductive core strip, a fuel tank cap locking inductive unit and a locking prompt unit, can effectively realize the effective monitoring of the data of whether the cover shell is closed and the locking of the sealing plug, can produce an intuitive prompt sound feedback when the driver closes the cover shell and locks the sealing plug, effectively assists the driver to judge the locking state of the sealing plug, avoids the problem of poor locking caused by operation failure, and effectively guarantees the sealing effect of the locking tongue on the fuel tank, avoids the hidden danger of fuel leakage, and can monitor and feedback the continuous locking state of the sealing plug during subsequent driving, timely sends an abnormal locking alarm signal to the driver, and guarantees the driving safety.

Description

TECHNICAL FIELD

[0001] The oil tank cover lock relates to the technical field of oil tank cover locks, and particularly relates to an oil tank cover lock. BACKGROUND

[0002] The oil tank cover is an important part of the oil tank of an automobile, and mainly serves to protect the fuel in the oil tank from being polluted and damaged by the outside world, and prevent fuel leakage and fire accidents. The oil tank cover lock is a safety device for preventing unauthorized personnel from opening the oil tank cover, thereby protecting the fuel of the automobile from being stolen or polluted.

[0003] In the application and practice of the current oil tank cover lock, the driver often cannot intuitively and accurately evaluate whether the locking mechanism has been effectively locked after completing the closing and locking operation of the oil tank cover. Due to human negligence or improper operation, the oil tank cover may appear to be locked, but in fact, the ideal locking state is not achieved, thereby weakening the sealing performance thereof.

[0004] If the above situation is not discovered and corrected in time, it will bury the hidden danger of fuel leakage in the subsequent driving process, which not only may cause resource waste and environmental pollution, but more importantly, significantly increases the safety risk in the driving process, and poses a potential threat to driving safety. Therefore, optimizing the design of the oil tank cover lock and enhancing the intuitive feedback mechanism of the locking state have important practical significance for improving the safety of the vehicle. SUMMARY

[0005] In view of the above prior art, the technical problem to be solved by the present application is how to monitor and feedback whether the oil tank cover is completely locked in place to ensure driving safety.

[0006] To solve the above problems, the present application provides a locking type oil tank cover lock, comprising a positioning ring fixedly installed on the upper end of the oil tank opening of an automobile, a cover shell hingedly connected to the upper end of the positioning ring, and an oil tank cover locking monitoring system carried on the central control end of the automobile, the lower end of the cover shell being fixedly connected with a sealing plug, the lower end of the sealing plug being provided with a lock tongue, the lower end of the cover shell being fixedly connected with a guide rod seat located at the rear side of the sealing plug, and the lower end of the guide rod seat being connected with a locking guide rod;

[0007] The lower end of the positioning ring is fixedly connected with a sensing arc block corresponding to the position of the guide rod seat, the lower end of the sensing arc block is fixedly connected with a sensing branch corresponding to the position of the locking guide rod, a sensing base is installed in the sensing branch, the upper end of the sensing base is fixedly connected with a locking sensing cylinder, a sensing core strip matched with the locking guide rod is slidably arranged in the locking sensing cylinder, a sensing cavity is formed in the sensing core strip, locking contact rods are fixedly connected to the inner walls of the upper and lower sensing cavities, and auxiliary springs are fixedly connected between the inner walls of the upper and lower sensing cavities and slidably sleeved outside the locking contact rods;

[0008] The oil tank cover locking monitoring system comprises a locking monitoring processing unit, an oil tank cover locking sensing unit, an oil tank cover unlocking collecting unit and an automobile driving state collecting unit connected to the input end of the locking monitoring processing unit, and an oil tank cover locking data transmission unit, an oil tank pressure regulation unit, a locking prompting unit and an abnormal locking alarm unit connected to the output end of the locking monitoring processing unit.

[0009] The input end of the oil tank cover locking sensing unit is connected with the locking lever signal, the input end of the oil tank cover unlocking collecting unit is connected with the locking bolt signal, the input end of the automobile driving state collecting unit is connected with the automobile central control signal, the output end of the oil tank pressure regulation unit is connected with the pressure regulating valve signal arranged on the sealing plug, the output end of the locking prompting unit is connected with the buzzer signal installed on the positioning ring, and the output ends of the abnormal locking alarm unit and the oil tank cover locking data transmission unit are connected with the automobile central control signal.

[0010] In the locking type oil tank cover lock, the data of whether the cover shell is closed and the sealing plug is locked can be effectively monitored, an intuitive prompt sound feedback can be generated when the driver closes the cover shell and locks the sealing plug, the driver can be effectively assisted to judge the locking state of the sealing plug, the problem of poor locking caused by operation error can be avoided, the sealing effect of the locking bolt on the oil tank can be effectively ensured, and the hidden danger of fuel leakage can be avoided.

[0011] As a further improvement of the present application, the lower end of the sensing core strip is fixedly connected with an extension rod, the lower end of the extension rod extends to the outside of the sensing base, and a bottom plate is fixedly connected thereto, and a tension spring slidingly sleeved outside the extension rod is fixedly connected between the upper end of the bottom plate and the lower end of the sensing base.

[0012] As a further improvement of the present application, the upper end of the bottom plate is fixedly connected with a plurality of fluctuation levers outside the tension spring, the lower end of the sensing base is embedded with a plurality of fluctuation tabs matched with the fluctuation levers, and the input end of the locking monitoring processing unit is further connected with a pressure fluctuation abnormality collecting unit, and the input end of the pressure fluctuation abnormality collecting unit is respectively connected with the fluctuation tabs and the locking lever signal.

[0013] As a further improvement of the present application, a guide rod groove is formed in the lower end of the guide rod seat, a guide rod spring is fixedly connected to the inner wall of the guide rod groove, and the lower end of the guide rod spring is fixedly connected with the upper end of the locking guide rod.

[0014] As a further improvement of the present application, the inner diameter of the tension spring is greater than the outer diameter of the sensing core strip, the stiffness coefficient of the tension spring is greater than the sum of the stiffness coefficient of the auxiliary spring and the stiffness coefficient of the guide rod spring, and the stiffness coefficient of the guide rod spring is greater than the stiffness coefficient of the auxiliary spring.

[0015] As a further improvement of the present application, a plurality of locking grooves are formed on the lower end of the cover shell outside the sealing plug, and an adsorbing iron block is arranged in the locking groove.

[0016] As another improvement of the present application, a plurality of L-shaped arc blocks corresponding to the positions of the locking grooves are fixedly connected to the lower end of the positioning ring, and a forced locking electromagnetic block is fixedly connected to the upper end of the L-shaped arc block. The output end of the locking monitoring processing unit is connected to an emergency forced locking unit, and the output end of the emergency forced locking unit is signal connected to the forced locking electromagnetic block.

[0017] As a further improvement of the present application, a plurality of L-shaped arc blocks corresponding to the positions of the locking grooves are fixedly connected to the lower end of the positioning ring, and a forced locking electromagnetic block is fixedly connected to the upper end of the L-shaped arc block. The output end of the locking monitoring processing unit is connected to an emergency forced locking unit, and the output end of the emergency forced locking unit is signal connected to the forced locking electromagnetic block.

[0018] In summary, through the cooperation of the locking guide rod, the sensing core strip, the oil tank cover locking sensing unit and the locking prompting unit, the data of whether the cover shell is closed and the sealing plug is locked can be effectively monitored, and an intuitive prompt sound feedback can be generated when the driver closes the cover shell and locks the sealing plug, effectively assisting the driver in judging the locking state of the sealing plug, avoiding the problem of poor locking due to operation errors, and effectively ensuring the sealing effect of the locking tongue on the oil tank, avoiding the risk of fuel leakage, and monitoring and feeding back the continuous locking state of the sealing plug during subsequent driving, issuing an abnormal locking alarm signal to the driver in time, effectively ensuring the sealing of the oil tank during driving, reducing the safety risk during driving, and ensuring driving safety. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the first and second embodiments of the locking type oil tank cover lock opening axial view of the present application;

[0020] Figure 2 It is the first and second embodiments of the oil tank cover locking monitoring system control logic diagram of the present application;

[0021] Figure 3 It is the first and second embodiments of the locking type oil tank cover lock opening left view of the present application;

[0022] Figure 4 It is the first and second embodiments of the locking type oil tank cover lock opening locking sensing cylinder front view of the present application;

[0023] Figure 5 It is the first and second embodiments of the locking type oil tank cover lock opening locking sensing cylinder front view of the present application;

[0024] Figure 6Locking sensing cylinder main view sectional view when the oil tank pressure is too large for the first and second embodiments of the present application;

[0025] Figure 7 Locking sensing cylinder main view sectional view when the oil tank pressure is too small for the first and second embodiments of the present application;

[0026] Figure 8 Locking oil tank cap lock exploded view when the lock is closed for the first and second embodiments of the present application;

[0027] Figure 9 Axonometric view when the locking oil tank cap lock is normally locked when closed for the second embodiment of the present application;

[0028] Figure 10 Main view partial sectional view when the locking oil tank cap lock is normally locked when closed for the second embodiment of the present application;

[0029] Figure 11 Axonometric view when the locking oil tank cap lock is forcibly locked when closed for the second embodiment of the present application;

[0030] Figure 12 Main view partial sectional view when the locking oil tank cap lock is forcibly locked when closed for the second embodiment of the present application.

[0031] Explanation of reference numerals in the figures:

[0032] 1 positioning ring, 11 sensing arc block, 12 sensing support block, 13 L-shaped arc block, 2 cap shell, 21 lock tongue, 22 sealing plug, 3 locking sensing cylinder, 31 sensing base, 32 sensing core strip, 33 locking contact lever, 34 auxiliary spring, 35 extension rod, 36 bottom plate, 37 tension spring, 38 wavy contact lever, 4 locking guide rod, 41 guide rod base, 42 guide rod spring, 5 forced locking electromagnetic block, 6 adsorbing iron block, 61 elastic adapting block. DETAILED DESCRIPTION

[0033] The two embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0034] First embodiment:

[0035] Figure 1 - Figure 8 The locking oil tank cap lock is shown, comprising a positioning ring 1 fixedly installed on the upper end of the oil tank mouth of the automobile, a cap shell 2 hingedly connected to the upper end of the positioning ring 1, and an oil tank cap locking monitoring system carried on the central control end of the automobile. The cap shell 2 is fixedly connected with a sealing plug 22 at the lower end, the sealing plug 22 is installed with a lock tongue 21 at the lower end, the cap shell 2 is fixedly connected with a guide rod base 41 located at the rear side of the sealing plug 22 at the lower end, and the guide rod base 41 is connected with a locking guide rod 4 at the lower end;

[0036] The lower end of the positioning ring 1 is fixedly connected with an induction arc block 11 corresponding to the position of the guide rod seat 41, the lower end of the induction arc block 11 is fixedly connected with an induction branch block 12 corresponding to the position of the locking guide rod 4, the induction branch block 12 is internally mounted with an induction base 31, the upper end of the induction base 31 is fixedly connected with a locking induction cylinder 3, the locking induction cylinder 3 is internally slidably provided with an induction core strip 32 matched with the locking guide rod 4, the induction core strip 32 is internally provided with an induction cavity, the upper and lower two inner walls of the induction cavity are fixedly connected with locking touch rods 33, and the upper and lower two inner walls of the induction cavity are fixedly connected with auxiliary springs 34 slidably sleeved outside the locking touch rods 33.

[0037] The oil tank cover locking monitoring system comprises a locking monitoring processing unit, an oil tank cover locking induction unit, an oil tank cover unlocking acquisition unit and an automobile running state acquisition unit connected to the input end of the locking monitoring processing unit, and an oil tank cover locking data transmission unit, an oil tank pressure regulation unit, a locking prompt unit and an abnormal locking alarm unit connected to the output end of the locking monitoring processing unit.

[0038] The input end of the oil tank cover locking induction unit is signal connected with the locking touch rod 33, the input end of the oil tank cover unlocking acquisition unit is signal connected with the locking bolt 21, the input end of the automobile running state acquisition unit is signal connected with the automobile central control end, the output end of the oil tank pressure regulation unit is signal connected with the pressure regulating valve arranged on the sealing plug 22, the output end of the locking prompt unit is signal connected with the buzzer installed on the positioning ring 1, and the output ends of the abnormal locking alarm unit and the oil tank cover locking data transmission unit are signal connected with the automobile central control end. Through the cooperation of the locking guide rod 4, the induction core strip 32, the oil tank cover locking induction unit and the locking prompt unit, the data of whether the cover shell 2 is closed and the sealing plug 22 is locked can be effectively monitored, an intuitive prompt sound feedback can be generated when the driver closes the cover shell 2 and locks the sealing plug 22, the driver can be effectively assisted to judge the locking state of the sealing plug 22, the problem of poor locking caused by operation error can be avoided, the sealing effect of the locking bolt 21 on the oil tank can be effectively guaranteed, the risk of fuel leakage can be reduced, the safety risk during driving can be greatly reduced, and the driving safety can be guaranteed.

[0039] Figure 4 - Figure 7The lower end of the induction core strip 32 is fixedly connected with an extension rod 35, the lower end of the extension rod 35 extends to the outside of the induction base 31, and is fixedly connected with a bottom plate 36, the upper end of the bottom plate 36 and the lower end of the induction base 31 are fixedly connected with a tension spring 37 which is sleeved on the outside of the extension rod 35, the cooperation of the extension rod 35, the bottom plate 36 and the tension spring 37 can effectively realize the supporting effect of the induction core strip 32, ensure the monitoring effect of the induction core strip 32 and the locking guide rod 4 on the locking state of the sealing plug 22, promote the persistence and effectiveness of the induction data, and can realize real-time monitoring during locking operation and driving, thereby ensuring driving safety.

[0040] Figure 2 and Figure 4 - Figure 7 The upper end of the bottom plate 36 is fixedly connected with a plurality of fluctuation touch rods 38 located outside the tension spring 37, the lower end of the induction base 31 is embedded with a plurality of fluctuation touch pieces matched with the fluctuation touch rods 38, the input end of the locking monitoring processing unit is also connected with a pressure fluctuation abnormality acquisition unit, the input end of the pressure fluctuation abnormality acquisition unit is respectively connected with the fluctuation touch pieces and the locking touch rod 33, and the cooperation of the pressure fluctuation abnormality acquisition unit, the locking touch rod 33 and the fluctuation touch pieces can effectively realize real-time acquisition and feedback of the sealing state data of the sealing plug 22 during driving, when the sealing plug 22 is poorly sealed, the pressure regulating valve will lose the regulating effect on the pressure in the oil tank, which will further cause the problem of excessive or insufficient pressure in the oil tank, and the pressure fluctuation in the oil tank can trigger the pressure fluctuation abnormality acquisition unit, effectively realizing the acquisition and transmission of the poor sealing data of the sealing plug 22, effectively reminding the driver to stop and check, adjusting and maintaining the locking of the locking bolt 21, avoiding fuel leakage caused by poor sealing, and ensuring safety during subsequent driving.

[0041] Figure 4 - Figure 7 The lower end of the guide rod seat 41 is provided with a guide rod groove, the inner wall of the guide rod groove is fixedly connected with a guide rod spring 42, the lower end of the guide rod spring 42 is fixedly connected with the upper end of the locking guide rod 4, and the guide rod spring 42 can effectively buffer the locking guide rod 4, which is suitable for the floating effect of the pressure in the oil tank during driving, and reduces the damage of the locking guide rod 4 and the induction core strip 32.

[0042] Figure 4 - Figure 7The inner diameter of the tension spring 37 is greater than the outer diameter of the sensing core strip 32, the stiffness coefficient of the tension spring 37 is greater than the sum of the stiffness coefficient of the auxiliary spring 34 and the stiffness coefficient of the guide rod spring 42, the stiffness coefficient of the guide rod spring 42 is greater than the stiffness coefficient of the auxiliary spring 34, the limitation of the stiffness coefficients of the auxiliary spring 34, the tension spring 37 and 45 can effectively feedback the data of the pressure fluctuation in the oil tank, when the pressure fluctuation in the oil tank is small, the constant triggering effect of the locking contact rod 33 is maintained, when the pressure fluctuation in the oil tank is large, the feedback triggering of the pressure abnormality is timely generated, the reminding effect on the driver is realized, and the driving safety is ensured.

[0043] Figure 1 - Figure 8 After the driver finishes refueling, the lock tongue 21 and the sealing plug 22 are inserted into the oil tank opening portion through the cover shell 2, the oil tank opening portion is sealed through the sealing plug 22, then the lock tongue 21 is twisted to be locked through the knob at the upper end of the cover shell 2, or the lock tongue 21 is locked through the electric control button on the cover shell 2, after the lock tongue 21 is locked, the cover shell 2 is in the abutting position of the oil tank opening portion, the guide rod seat 41 and the locking guide rod 4 are driven by the cover shell 2 to move downward, the locking guide rod 4 extrudes the sensing core strip 32 in the locking sensing cylinder 3, so that the sensing core strip 32 shrinks, because the stiffness coefficient of the guide rod spring 42 is greater than the stiffness coefficient of the auxiliary spring 34, and the stiffness coefficient of the tension spring 37 is greater than the sum of the stiffness coefficient of the auxiliary spring 34 and the stiffness coefficient of the guide rod spring 42, therefore, in the process that the locking guide rod 4 compresses the sensing core strip 32, the auxiliary spring 34 preferentially shrinks and deforms, so that the sensing core strip 32 shrinks, then the guide rod spring 42 generates a certain shrinkage under the support of the tension spring 37, under the bidirectional extrusion action among the guide rod spring 42, the locking guide rod 4 and the tension spring 37, the sensing core strip 32 and the auxiliary spring 34 generate complete shrinkage deformation, so that the upper and lower two locking contact rods 33 in the sensing core strip 32 generate abutting triggering, reach the oil tank cover locking sensing unit, the locking monitoring processing unit receives the locking signal, the locking monitoring processing unit sends the locking prompt data to the locking prompt unit, the locking prompt unit starts the buzzer to issue the locking completion buzzer reminding at the position of the cover shell 2, which can make an intuitive voice feedback to the driver or operator who closes the cover shell 2 at this time, effectively assist the cover shell 2, the lock tongue 21 and the sealing plug 22 to reach the complete locking state, ensure the locking effectiveness of the sealing plug 22 after each refueling, avoid the subsequent oil tank sealing problem caused by poor locking, at the same time, the locking monitoring processing unit also sends the locking data to the oil tank cover locking data transmission unit, so that the oil tank cover locking data transmission unit transmits the locking data to the automobile central control end, which is convenient for the automobile central control end to process and store the automobile data.

[0044] In the process of driving, due to the shaking of the car, the contact between fuel and air will cause the pressure of the fuel tank to increase, or due to the continuous consumption of fuel in the fuel tank, the pressure of the fuel tank will decrease, so in the process of driving, the pressure in the fuel tank is in a certain fluctuation state, and then after the driving state acquisition unit transmits the data about the car being in driving state to the locking monitoring processing unit, the pressure control unit will issue a pressure control instruction to the fuel tank pressure control unit, so that the fuel tank pressure control unit acts on the pressure regulating valve to regulate the pressure fluctuation in the fuel tank, and ensure the safety of the fuel tank in the application process;

[0045] And when the pressure in the fuel tank increases, the bottom plate 36 will produce a certain extrusion effect on the tension spring 37, the tension spring 37 will produce upward shrinkage deformation, drive the bottom plate 36 to move upward, drive the inductive core strip 32 in the contracted state to move upward through the extension rod 35, produce an upward thrust on the locking guide rod 4, make the guide rod spring 42 produce further compression, and then after the pressure regulating valve plays a pressure regulating role, the bottom plate 36 loses the extrusion effect of the pressure, the tension spring 37 produces a restoring elongation deformation, and drives the inductive core strip 32 to move downward through the bottom plate 36 and the extension rod 35, and continuously maintains the inductive core strip 32 in the fully contracted state under the elastic recovery effect of the guide rod spring 42; It can effectively ensure the pressure balance in the fuel tank, promote the safety of the fuel tank application, and continuously monitor the sealing state of the sealing plug 22 in the driving process, and ensure the driving safety;

[0046] Or when the pressure fluctuation in the fuel tank decreases, the negative pressure in the fuel tank will act on the bottom plate 36, causing the bottom plate 36 to be adsorbed and move downward, and the inductive core strip 32 will move downward under the action of the tension spring 37, and at this time, due to the elastic elongation effect of the guide rod spring 42, the locking guide rod 4 will be driven to move downward after the inductive core strip 32 moves downward, thereby effectively maintaining the continuous compression of the auxiliary spring 34 in the inductive core strip 32 and the continuous triggering effect of the locking touch rod 33, and then after the pressure regulating valve plays a pressure regulating role, the bottom plate 36 loses the adsorption effect of the negative pressure, and will drive the inductive core strip 32 and the locking guide rod 4 to produce a restoring action under the elastic recovery effect of the tension spring 37, and the guide rod spring 42 maintains a certain compression effect, and restores the position of the inductive core strip 32 and the locking guide rod 4. Because the pressure fluctuation is small and effectively regulated, the displacement of the bottom plate 36 is not large, so the displacement is within the elastic range of the tension spring 37, so the upper and lower locking touch rods 33 in the inductive core strip 32 maintain a continuous contact effect in this process;

[0047] In the process of balancing and maintaining the pressure in the oil tank by the lock monitoring processing unit controlling the pressure regulating valve through the oil tank pressure regulating unit, if the pressure in the oil tank continues to increase, the bottom plate 36 moves upward continuously to compress the tension spring 37, and the tension spring 37 and the guide rod spring 42 are also fully retracted, and after the fluctuation trigger rod 38 extrudes and triggers the fluctuation contact piece, the fluctuation contact piece transmits the trigger data to the pressure fluctuation abnormal collection unit. After the lock monitoring processing unit receives the pressure abnormal data transmitted by the pressure fluctuation abnormal collection unit, it is judged that the pressure regulating valve is malfunctioning at this time, and the lock tongue 21 is in a poor sealing state, so the abnormal alarm is transmitted to the abnormal lock alarm unit, and the alarm signal is transmitted to the automobile central control end by the abnormal lock alarm unit, so that the automobile central control end alarms and reminds the driver in the cab, reminds the driver to find a safe parking point in time, and carries out parking investigation to find out the reason for the poor sealing, and handles the bad reason to ensure the safety of subsequent driving;

[0048] Or if the pressure in the oil tank continues to decrease, the bottom plate 36 continuously moves downward to continuously stretch and deform the tension spring 37, and the extension rod 35 drives the inductive core strip 32 to continuously move downward, and when the inductive core strip 32 moves downward to the fully stretched position of the guide rod spring 42, the lock guide rod 4 no longer extrudes the inductive core strip 32, and the auxiliary spring 34 in the inductive core strip 32 produces elastic recovery effect, thereby causing the two lock trigger rods 33 in the inductive core strip 32 to separate, and the signal of the separation of the lock trigger rod 33 is transmitted to the lock monitoring processing unit by the pressure fluctuation abnormal collection unit. The lock monitoring processing unit judges and processes the received pressure abnormal data, judges that the pressure regulating valve is malfunctioning at this time, and the lock tongue 21 is in a poor sealing state, so the abnormal alarm is transmitted to the abnormal lock alarm unit, and the alarm signal is transmitted to the automobile central control end by the abnormal lock alarm unit, so that the automobile central control end alarms and reminds the driver in the cab, reminds the driver to find a safe parking point in time, and carries out parking investigation to find out the reason for the poor sealing, and handles the bad reason to ensure the safety of subsequent driving;

[0049] By feeding the lock tongue 21 sealing state data to the driver in time during driving, the safety during driving can be effectively ensured, and the problem of resource waste and environmental pollution caused by subsequent continuous poor sealing and fuel leakage can be avoided. More importantly, the safety risk during driving is further reduced to ensure driving safety. In the process of regulating the pressure in the oil tank and collecting and feeding data of the lock sealing state by the lock monitoring processing unit, the lock monitoring processing unit also transmits the monitored full data to the automobile central control end through the oil tank cover locking data transmission unit, displays and stores the related data through the automobile central control end, promotes the correlation between the oil tank sealing and the automobile central control end, and further ensures the safety of driving.

[0050] The second embodiment:

[0051] Figure 1 - Figure 12 The locking tank cap lock is shown as a further improvement of the first embodiment, which can realize further development of the locking tank cap lock function, realize the multi-specification of the locking tank cap lock, and effectively adapt to different market demands. A plurality of locking grooves are formed on the lower end of the cover shell 2 outside the sealing plug 22. An adsorption iron block 6 is arranged in the locking groove. The outer diameter of the adsorption iron block 6 is smaller than the inner diameter of the locking groove. According to the position of the cover shell 2 and the sealing plug 22 of different specifications, a plurality of locking grooves can be evenly distributed on the lower end of the cover shell 2. The locking grooves can also be arranged according to the reserved position of the cover shell 2 to ensure the effectiveness of the subsequent forced locking action. When the sealing plug 22 cannot be locked and cannot be restored by the driver, the forced locking action can ensure the safety of the driver driving to the repair point or the safe parking point.

[0052] Figure 2 And Figure 8 - Figure 12 The lower end of the positioning ring 1 is fixedly connected with a plurality of L-shaped arc blocks 13 corresponding to the position of the locking groove. The upper end of the L-shaped arc block 13 is fixedly connected with a forced locking electromagnetic block 5. The output end of the locking monitoring processing unit is connected with an emergency forced locking unit. The output end of the emergency forced locking unit is signal connected with the forced locking electromagnetic block 5. The cooperation of the emergency forced locking unit, the forced locking electromagnetic block 5 and the adsorption iron block 6 can perform forced locking action on the sealing plug 22 when the sealing plug 22 cannot be locked and cannot be restored by human. It can give the driver effective safe driving time and ensure the sealing of the tank in the distance from the driver driving the vehicle to the safe parking point or the repair point, which further guarantees the safety of driving.

[0053] Figure 8 - Figure 12 The upper inner wall of the locking groove is fixedly connected with an elastic adaptation block 61. The lower end of the elastic adaptation block 61 is fixedly connected with the adsorption iron block 6, and the adsorption iron block 6 is in sliding cooperation with the locking groove. The setting of the elastic adaptation block 61 can increase the applicability of the adsorption iron block 6 to different specifications of the cover shell 2 and the sealing plug 22. The adsorption iron block 6 and the forced locking electromagnetic block 5 can effectively adsorb on the cover shell 2 which can be evenly arranged, and then realize the forced locking effect of the sealing plug 22. On the cover shell 2 which cannot be evenly arranged, the effective adsorption of the adsorption iron block 6 and the forced locking electromagnetic block 5 is ensured through the auxiliary action of the elasticity of the elastic adaptation block 61, which promotes the further rotation of the cover shell 2 towards the tank opening, and promotes the sealing effect of the sealing plug 22 on the tank opening, realizing the effect of forced locking.

[0054] Figure 1 - Figure 12 After the locking monitoring processing unit receives the abnormal oil tank pressure data transmitted by the pressure fluctuation abnormality collection unit, the locking monitoring processing unit sends alarm data to the vehicle central control terminal through the abnormal locking alarm unit, and transmits a locking prompt instruction to the emergency forced locking unit. The emergency forced locking unit passes current into the forced locking electromagnet block 5, so that the forced locking electromagnet block 5 generates an electromagnetic effect to electromagnetically attract the adsorbed iron block 6. The position of the sealing plug 22 at the oil tank opening is controlled to move downward and be locked and maintained. The sealing plug 22 is locked by forced locking, which can help the driver to find a safe parking point or a nearby repair point to gain effective time and ensure the safety of driving in this section. After the locking monitoring processing unit obtains the vehicle parking data through the vehicle driving state collection unit, the current passing into the forced locking electromagnet block 5 is cut off through the emergency forced locking unit, so that the forced adsorption effect of the adsorbed iron block 6 is lost, and the cover shell 2 and the sealing plug 22 are convenient for replacement and maintenance.

[0055] In combination with the actual needs, the above-mentioned embodiments of the present application are not limited to the scope, and various changes made within the knowledge of those skilled in the art without departing from the concept of the present application still fall within the protection scope of the present application.

Claims

1. A locking fuel door latch characterized by: The utility model relates to an oil tank cover lock monitoring system, which comprises a positioning ring (1) fixedly installed on the upper end of the oil tank mouth of a vehicle, a cover shell (2) hingedly connected to the upper end of the positioning ring (1), and an oil tank cover lock monitoring system mounted on the central control end of the vehicle. The lower end of the positioning ring (1) is fixedly connected with an induction arc block (11) corresponding to the guide rod seat (41), the lower end of the induction arc block (11) is fixedly connected with an induction branch block (12) corresponding to the lock guide rod (4), the induction branch block (12) is internally mounted with an induction base (31), the upper end of the induction base (31) is fixedly connected with a lock induction cylinder (3), the lock induction cylinder (3) is internally slidably provided with an induction core strip (32) matched with the lock guide rod (4), the induction core strip (32) is internally provided with an induction cavity, the upper and lower inner walls of the induction cavity are fixedly connected with lock contact rods (33), and the upper and lower inner walls of the induction cavity are fixedly connected with auxiliary springs (34) slidably sleeved on the outer sides of the lock contact rods (33). The oil tank cover lock monitoring system comprises a lock monitoring processing unit, the input end of the lock monitoring processing unit is connected with an oil tank cover lock induction unit, an oil tank cover unlocking acquisition unit and a vehicle driving state acquisition unit, and the output end of the lock monitoring processing unit is connected with an oil tank cover lock data transmission unit, an oil tank pressure regulation unit, a lock prompting unit and an abnormal lock alarm unit. The input end of the oil tank cover lock induction unit is signal-connected with the lock contact rod (33), the input end of the oil tank cover unlocking acquisition unit is signal-connected with the lock tongue (21), the input end of the vehicle driving state acquisition unit is signal-connected with the central control end of the vehicle, the output end of the oil tank pressure regulation unit is signal-connected with a pressure regulating valve arranged on the sealing plug (22), the output end of the lock prompting unit is signal-connected with a buzzer mounted on the positioning ring (1), and the output ends of the abnormal lock alarm unit and the oil tank cover lock data transmission unit are signal-connected with the central control end of the vehicle.

2. A locking fuel tank cap lock according to claim 1, characterized in that: The lower end of the induction core strip (32) is fixedly connected with an extension rod (35), the extension rod (35) extends to the outside of the induction base (31) at the lower end and is fixedly connected with a bottom plate (36), and the upper end of the bottom plate (36) and the lower end of the induction base (31) are fixedly connected with a tension spring (37) slidably sleeved on the outer side of the extension rod (35).

3. A lock ring cap lock as defined in claim 2, wherein: The upper end of the bottom plate (36) is fixedly connected with a plurality of fluctuation contact rods (38) located on the outer side of the tension spring (37), the lower end of the induction base (31) is embedded with a plurality of fluctuation contact pieces matched with the fluctuation contact rods (38), the input end of the lock monitoring processing unit is further connected with a pressure fluctuation abnormality acquisition unit, and the input end of the pressure fluctuation abnormality acquisition unit is signal-connected with the fluctuation contact pieces and the lock contact rod (33) respectively.

4. A lock ring type filler neck cap lock as defined in claim 2 wherein: The guide rod seat (41) is provided with a guide rod slot at the lower end, and the inner wall of the guide rod slot is fixedly connected with a guide rod spring (42), and the lower end of the guide rod spring (42) is fixedly connected with the upper end of the locking guide rod (4).

5. A lock ring type filler neck cap lock as defined in claim 4 wherein: The inner diameter of the tension spring (37) is greater than the outer diameter of the induction core strip (32), the stiffness coefficient of the tension spring (37) is greater than the sum of the stiffness coefficient of the auxiliary spring (34) and the stiffness coefficient of the guide rod spring (42), and the stiffness coefficient of the guide rod spring (42) is greater than the stiffness coefficient of the auxiliary spring (34).

6. A locking fuel tank cap lock according to claim 1, characterized in that: The cover shell (2) is provided with a plurality of locking grooves outside the sealing plug (22) at the lower end, and the locking grooves are provided with adsorption iron blocks (6).

7. A lock ring type filler neck cap lock as defined in claim 6 wherein: The lower end of the positioning ring (1) is fixedly connected with a plurality of L-shaped arc blocks (13) corresponding to the positions of the locking grooves, the upper end of the L-shaped arc block (13) is fixedly connected with a forced locking electromagnetic block (5), the output end of the locking monitoring processing unit is connected with an emergency forced locking unit, and the output end of the emergency forced locking unit is signal connected with the forced locking electromagnetic block (5).

8. A lock ring type filler neck cap lock as defined in claim 6 wherein: The inner wall of the locking groove is fixedly connected with an elastic adaptation block (61), the lower end of the elastic adaptation block (61) is fixedly connected with the adsorption iron block (6), and the adsorption iron block (6) is in sliding cooperation with the locking groove.

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