Rotary pressing oil tank lock
By using a rotating and pressing design for the fuel tank lock, and utilizing a sliding rotation transmission assembly with a limit post and guide groove, the problem of traditional fuel tank cap locks accidentally popping out during vibration is solved, thus achieving safe and convenient installation of the fuel tank cap.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-04-03
AI Technical Summary
Traditional car fuel tank cap locks are prone to popping out accidentally when vibrated, and are inconvenient to disassemble and install.
A rotary pressing fuel tank lock was designed, which uses a rotary transmission component in which the limiting post slides in the guide groove. Combined with the limiting flange and groove structure of the limiting component, the lock tongue can rotate to lock the fuel tank cover, and electronic locking is achieved through electrical connectors.
The safety of the fuel tank cap has been improved, preventing accidental opening, and it is easy to disassemble and install.
Smart Images

Figure CN224078907U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive component technology, and in particular to a rotary pressing fuel tank lock. Background Technology
[0002] A fuel tank cap lock is a device on a car used to lock the fuel tank cap. Its importance lies in ensuring fuel safety and preventing fuel theft or leakage. Its main function is to ensure the fuel tank cap remains closed while the vehicle is in motion, preventing fuel leakage, foreign object entry, or accidental opening. Traditional automotive fuel tank cap locks primarily rely on mechanical control technology, using the fuel tank cap's own spring or latch structure. Pressing the cap locks it in place, and pressing it again opens it. However, most existing push-button locks only move vertically, which can cause the latch to accidentally pop out due to vibration during bumpy driving. Furthermore, most are integrated mechanisms, making disassembly and installation inconvenient. Utility Model Content
[0003] In view of this, the present invention provides a rotary pressing oil tank lock to solve the above-mentioned technical problems.
[0004] A rotary-pressing fuel tank lock includes a housing, a rotary transmission assembly disposed on the housing, and a limiting assembly disposed on the housing. A limiting post is disposed on the rotary transmission assembly. The limiting assembly includes a first limiting member disposed within the housing and a second limiting member disposed on the first limiting member. A limiting flange and a limiting groove are respectively provided at opposite ends of the first and second limiting members. The limiting flange and the limiting groove are spaced apart and form a guide groove spirally arranged along the axial direction of the first and second limiting members. The limiting post is slidably disposed within the guide groove. When the rotary transmission assembly moves axially, the limiting post slides along the guide groove, causing the rotary transmission assembly to rotate simultaneously with its axial movement.
[0005] Furthermore, the rotary transmission assembly includes a rotating disk disposed within the housing, a base column rotatably disposed on the rotating disk, a sliding member slidably disposed on the base column, a spring sleeved on the sliding member, a pressing member disposed on the sliding member, an outer cylinder disposed on the pressing member, and a locking hole disposed on the outer cylinder.
[0006] Furthermore, one end of the base column is rotatably connected to the rotating disk, and the other end is slidably connected to the sliding member. One end of the sliding member is slidably connected to the base column, and the other end is connected to the pressing member.
[0007] Furthermore, a first limiting flange is provided at the middle position of the base column, and a second limiting flange is provided at the middle position of the slider. One end of the spring abuts against the first limiting flange, and the other end abuts against the second limiting flange. The spring drives the slider and the pressing member provided on the slider to move away from the base column through its own elastic force.
[0008] Furthermore, a locking tongue is provided on each side of the pressing member, and the locking tongue will adjust its orientation after the pressing member is rotated.
[0009] Furthermore, the inner wall of the outer cylinder is provided with a plurality of limiting grooves arranged along the axial direction of the outer cylinder, and the first limiting flange, the second limiting flange, and the pressing member are provided with a plurality of limiting strips whose positions correspond to the positions of the limiting grooves, and the limiting strips are slidably disposed in the limiting grooves.
[0010] Furthermore, the first limiting member has a clamp-shaped structure and buckles are provided at both ends of the first limiting member, and the second limiting member has a slot corresponding to the buckle, and the buckle engages with the slot.
[0011] Furthermore, a support platform is also provided on one side of the second limiting member.
[0012] Furthermore, the rotary pressing tank lock includes an electrical connector disposed on the housing, the electrical connector being an interface for inserting a power supply.
[0013] Compared with the prior art, the rotary transmission assembly of the rotary pressing oil tank lock provided by this utility model is provided with a limiting post. The first limiting member and the second limiting member have a limiting flange and a limiting groove respectively at their opposite ends. The limiting flange and the limiting groove are spaced apart and form a guide groove spirally arranged along the axial direction of the first and second limiting members. The limiting post is slidably disposed within the guide groove. When the rotary transmission assembly is pressed, the limiting post is limited to sliding within the guide groove, causing the outer cylinder to move axially and rotate simultaneously, thereby causing the locking tongues on both sides of the pressing member to rotate and lock the oil tank cap. The first limiting member has buckles at both ends, and the second limiting member has slots corresponding to the buckles. The buckles engage with the slots, facilitating the disassembly and installation of the first and second limiting members. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of a rotary pressing oil tank lock provided by this utility model.
[0015] Figure 2 for Figure 1A schematic diagram of the structure of the oil tank lock that is rotated and pressed down to remove the housing.
[0016] Figure 3 for Figure 1 An exploded view of the limiting component with a rotation locking structure.
[0017] Figure 4 for Figure 1 A schematic diagram of the rotary transmission assembly of the rotary pressing oil tank lock.
[0018] Figure 5 for Figure 1 An exploded view of the rotary transmission assembly of the rotary pressing oil tank lock. Detailed Implementation
[0019] The specific embodiments of this utility model are described in further detail below. It should be understood that the description of the embodiments of this utility model herein is not intended to limit the scope of protection of this utility model.
[0020] like Figures 1 to 5 The diagram shown is a structural schematic of a rotary-pressing fuel tank lock provided by this utility model. The rotary-pressing fuel tank lock includes a housing 10, a rotary transmission assembly 20 disposed on the housing 10, a limiting assembly 30 disposed on the housing 10, and an electrical connector 40 disposed on the housing 10. It is conceivable that the rotary-pressing fuel tank lock also includes other functional modules, such as connecting components, electrical connection components, and mounting components, etc., which are technologies well known to those skilled in the art and will not be described in detail here.
[0021] The housing 10 is used to support the aforementioned functional modules. Therefore, the housing 10 is provided with various functional structures, such as screws, mounting holes, etc., to complete the installation and assembly of the aforementioned functional modules. These can be set according to actual needs, and will not be described in detail here. The housing 10 is the outermost structure of the equipment, mainly serving a protective function to prevent dust, moisture, physical impact, etc. from the external environment from damaging the internal components.
[0022] The rotary transmission assembly 20 includes a rotating disk 21 disposed within the housing 10, a base column 22 rotatably disposed on the rotating disk 21, a sliding member 23 slidably disposed on the base column 22, a spring 24 sleeved on the sliding member 23, a pressing member 25 disposed on the sliding member 23, an outer cylinder 26 disposed on the pressing member 25, and a locking hole 27 disposed on the outer cylinder 26.
[0023] The rotating disk 21 supports the base column 22 and rotates with it. One end of the base column 22 is rotatably connected to the rotating disk 21, and the other end is slidably connected to the sliding member 23. A first limiting flange 221 is provided at the middle position of the base column 22, which is used to mount one end of the spring 24. One end of the sliding member 23 is slidably connected to the base column 22, and the other end is connected to the pressing member 25. A second limiting flange 231 is provided at the middle position of the sliding member 23, which is used to mount the other end of the spring 24. One end of the spring 24 abuts against the first limiting flange 221, and the other end abuts against the second limiting flange 231. The spring 24, through its own elastic force, drives the sliding member 23 and the pressing member 25 mounted on the sliding member 23 to move away from the base column 22. When the pressing member 25 is pressed, the sliding member 23 moves towards the base post 22 while the spring 24 is compressed. After pressing a certain distance, the relative position of the sliding member 23 and the base post 22 is locked. When the pressing member 25 is pressed again, the relative position of the sliding member 23 and the base post 22 is unlocked. At this time, the elastic potential energy of the compressed spring 24 drives the sliding member 23 to move away from the base post 22 until the spring 24 is in a free state and no longer compressed. The unlocking and locking method between the sliding member 23 and the base post 22 can be existing technology, such as the technical solution disclosed in patent number 201811123421.8. The outer cylinder 26 and the pressing member 25 are connected together by the connecting member 251 to ensure that the outer cylinder 26 moves synchronously when the pressing member 25 is pressed. In this embodiment, the connecting member 251 is a pin. A locking tongue 252 is provided on each side of the pressing member 25. The locking tongue 252 will adjust its orientation after the pressing member 25 is rotated, thereby pressing the fuel tank cap and making the fuel tank cap unable to be opened.
[0024] A limiting post 261 is provided on the outer side wall of the outer cylinder 26. The limiting post 261 is slidably inserted into the limiting component 30. The limiting post 261 moves in an arc shape by the limiting component 30, so that the rotary transmission component 20 moves axially and rotates at the same time. A detailed explanation will be given below in conjunction with the limiting component 30.
[0025] The inner wall of the outer cylinder 26 is provided with multiple limiting grooves 262 arranged axially along the outer cylinder 26. The first limiting flange 221, the second limiting flange 231, and the pressing member 25 are provided with multiple limiting strips 263 whose positions correspond to the positions of the limiting grooves 262. The limiting strips 263 are slidably disposed in the limiting grooves 262. When the outer cylinder 26 moves axially and rotates, it drives the pressing member 25 to move axially and rotate synchronously, so that the locking tongues 252 on both sides of the pressing member 25 lock the oil tank cap.
[0026] The limiting component 30 includes a first limiting member 31 disposed within the housing 10, and a second limiting member 32 disposed on the first limiting member 31.
[0027] The first limiting member 31 and the second limiting member 32 are respectively provided with a limiting flange 33 and a limiting groove 34 at their opposite ends. The limiting flange 33 and the limiting groove 34 are spaced apart from each other and form a guide groove 35 that is spirally arranged along the axial direction of the first limiting member 31 and the second limiting member 32. The limiting post 261 is slidably disposed in the guide groove 35. Therefore, when the outer cylinder 26 moves axially, the limiting post 261 is limited to slide within the guide groove 35, thereby causing the outer cylinder 26 to rotate while moving axially. The extension length and extension arc of the guide groove 35 can limit the moving distance and rotation angle of the rotary transmission assembly 20. In this embodiment, the extension length and extension arc of the guide groove 35 cause the rotary transmission assembly 20 to rotate 90 degrees, thereby causing the locking tongues 252 on both sides of the pressing member 25 to rotate and lock the oil tank cap. When unlocking, the limiting post 261 is located on the side of the guide groove 35 facing the pressing member 25. When locked, the limiting post 261 is located on the side of the guide groove 35 facing the rotating disk 21.
[0028] To facilitate the assembly and disassembly of the first limiting member 31 and the second limiting member 32, the first limiting member 31 has a clamp-like structure and is provided with buckles 36 at both ends. The second limiting member 32 is provided with a slot 37 corresponding to the buckles 36, and the buckles 36 engage with the slots 37. During installation, the first limiting member 31 is set first, then the rotary transmission assembly 20 is set and the limiting post 261 is placed between the limiting flange 33 and the limiting groove 34. Then the second limiting member 32 is set and the buckles 36 engage with the slots 37. After the first limiting member 31 and the second limiting member 32 are spliced together, they form a hollow cylindrical structure, which is used to facilitate the axial movement of the rotary transmission assembly 20. The second limiting member 32 is also provided with a support platform on one side, which is used to set the electronic locking device of the oil tank lock (not shown in the figure). The electronic locking device is inserted into the locking hole 27 to further lock the rotary transmission assembly 20 after pressing, so as to prevent accidental opening. The electronic locking device should be the prior art, and will not be described in detail here.
[0029] The electrical connector 40 is used to connect the power supply interface to the electronic locking device, thereby driving the electronic locking device to work through the power supply.
[0030] Compared with the prior art, the rotary transmission assembly 20 of the rotary pressing oil tank lock provided by this utility model is provided with a limiting post 261. The first limiting member 31 and the second limiting member 32 are respectively provided with a limiting flange 33 and a limiting groove 34 at their opposite ends. The limiting flange 33 and the limiting groove 34 are spaced apart from each other and form a guide groove 35 spirally arranged along the axial direction of the first limiting member 31 and the second limiting member 32. The limiting post 261 is slidably disposed within the guide groove 35. When the rotary transmission assembly 20 is pressed, the limiting post 261 is limited to sliding within the guide groove 35, causing the outer cylinder 26 to move axially and rotate simultaneously, thereby causing the locking tongues 252 on both sides of the pressing member 25 to rotate and lock the oil tank cover. The first limiting member 31 has buckles 36 at both ends, and the second limiting member 32 has a slot 37 corresponding to the buckles 36. The buckles 36 engage with the slots 37, thereby facilitating the disassembly and installation of the first limiting member 31 and the second limiting member 32.
[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Any modifications, equivalent substitutions or improvements within the spirit of the present utility model are covered within the scope of the claims of the present utility model.
Claims
1. A rotary pressing oil tank lock, characterized in that: The rotary pressing oil tank lock includes a housing, a rotary transmission assembly disposed on the housing, and a limiting assembly disposed on the housing. The rotary transmission assembly is provided with a limiting post. The limiting assembly includes a first limiting member disposed within the housing and a second limiting member disposed on the first limiting member. The opposing ends of the first limiting member and the second limiting member are respectively provided with a limiting flange and a limiting groove. The limiting flange and the limiting groove are spaced apart from each other and form a guide groove that is spirally arranged along the axial direction of the first limiting member and the second limiting member. The limiting post is slidably disposed in the guide groove. When the rotary transmission assembly moves axially, the limiting post slides along the guide groove, so that the rotary transmission assembly rotates while moving axially.
2. The rotary pressing oil tank lock as described in claim 1, characterized in that: The rotary transmission assembly includes a rotating disk disposed within the housing, a base column rotatably disposed on the rotating disk, a sliding member slidably disposed on the base column, a spring sleeved on the base column, a pressing member disposed on the sliding member, an outer cylinder disposed on the pressing member, and a locking hole disposed on the outer cylinder.
3. The rotary pressing oil tank lock as described in claim 2, characterized in that: One end of the base column is rotatably connected to the rotating disk, and the other end is slidably connected to the sliding member. One end of the sliding member is slidably connected to the base column, and the other end is connected to the pressing member.
4. The rotary pressing oil tank lock as described in claim 2, characterized in that: A first limiting flange is provided at the middle position of the base column, and a second limiting flange is provided at the middle position of the slider. One end of the spring abuts against the first limiting flange, and the other end abuts against the second limiting flange. The spring drives the slider and the pressing member provided on the slider to move away from the base column through its own elastic force.
5. The rotary pressing oil tank lock as described in claim 2, characterized in that: A locking tongue is provided on each side of the pressing member, and the locking tongue will adjust its orientation after the pressing member is rotated.
6. The rotary pressing oil tank lock as described in claim 4, characterized in that: The inner wall of the outer cylinder is provided with a plurality of limiting grooves arranged along the axial direction of the outer cylinder. The first limiting flange, the second limiting flange, and the pressing member are provided with a plurality of limiting strips whose positions correspond to the positions of the limiting grooves. The limiting strips are slidably disposed in the limiting grooves.
7. The rotary pressing oil tank lock as described in claim 1, characterized in that: The first limiting member has a clamp-shaped structure and buckles are provided at both ends of the first limiting member. The second limiting member has a slot corresponding to the buckle, and the buckle engages with the slot.
8. The rotary pressing oil tank lock as described in claim 1, characterized in that: A support platform is also provided on one side of the second limiting member.
9. The rotary pressing oil tank lock as described in claim 1, characterized in that: The rotary pressing tank lock includes an electrical connector disposed on the housing, the electrical connector being used as an interface for inserting a power source.
Citation Information
Patent Citations
Actuation device
CN109552432B