A high-strength car key protective shell
By designing a closed box structure and fixing components, the problem of damage caused by exposed key buttons is solved, achieving high-strength protection and convenient operation of the key, and adapting to the fixing of keys of different sizes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUYAO HUADAN AUTO PARTS CO LTD
- Filing Date
- 2025-07-03
- Publication Date
- 2026-06-30
AI Technical Summary
Even with existing car key protective shells that provide all-around protection, the key buttons are still exposed, making them susceptible to damage from impacts from external objects, which can lead to key malfunction.
A closed box structure including a protective shell and a cover was designed. The cover can be quickly locked and unlocked by the cooperation of the limiting rod and the limiting hole. The fixing components of the bidirectional screw and the clamping block are used to accommodate the fixing of keys of different sizes.
It effectively prevents external objects from impacting the key buttons, extends the key's lifespan, improves ease of use and versatility, and is compatible with various car key models.
Smart Images
Figure CN224432238U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of key protection shell technology, specifically to a high-strength car key protection shell. Background Technology
[0002] A car smart key is an advanced device with anti-theft and starting functions. It controls the car doors, trunk, fuel tank cap, windows, and sunroof by emitting infrared signals. The smart key can be divided into an entry system and a starting system. It uses advanced RFID wireless radio frequency identification technology. When the owner approaches or leaves the vehicle at a certain distance, the door locks will automatically open or close and correspondingly deactivate or activate the anti-theft mode.
[0003] A search of Chinese patent CN203584029U reveals a flip-type car key protective shell. It uses a rotatable connection between a sleeve and a connecting part to separate the first shell and the second shell. The car key is then installed in the first shell, and the second shell is flipped over to engage with the first shell, thus achieving a secure installation of the car key.
[0004] The above solution uses a shell that surrounds the key on all four sides for protection. However, the buttons on the car key are still exposed to the outside. If an external object hits the buttons, it can easily damage them, causing the car key to malfunction.
[0005] Therefore, this utility model provides a high-strength car key protective shell to solve the above problems. Utility Model Content
[0006] In order to overcome the shortcomings of the prior art, this utility model provides a high-strength car key protective shell to solve the problem that although the key is protected by a shell that wraps around the key, the key buttons are still exposed to the outside. If an external object hits the key buttons, it will easily cause damage to the buttons, thus causing the car key to malfunction.
[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0008] A high-strength car key protective shell includes a protective shell, a cover rotatably connected to the protective shell, a limiting seat fixedly connected inside the protective shell, a limiting hole on the cover, a moving groove on the limiting seat, a moving block slidably connected in the moving groove, a limiting rod fixedly connected to the moving block, and the limiting rod being inserted into the limiting hole to limit the cover, a first spring being provided below the moving block, a moving component for pushing the limiting rod out of the limiting hole being provided on the cover, and a fixing component for clamping and fixing the key inside the protective shell.
[0009] Preferably, a lifting ring is fixedly connected to the protective shell.
[0010] Preferably, the movable component includes a control box fixedly connected to the housing cover, a linkage plate slidably connected inside the control box, a top rod fixedly connected to the linkage plate, and the bottom end of the top rod penetrating the control box and inserted into a limiting hole.
[0011] Preferably, a pressing rod is fixedly connected to the linkage plate, and the top end of the pressing rod passes through the control box and extends to the top of the control box. A second spring is provided inside the control box, and the two ends of the second spring abut against the linkage plate and the control box respectively.
[0012] Preferably, a limiting plate is fixedly connected to the extrusion rod, and the limiting plate is located above the control box.
[0013] Preferably, the fixing assembly includes two support seats fixedly connected to the bottom wall of the protective shell. Each of the two support seats has a sliding groove, and each of the two sliding grooves is rotatably connected to a bidirectional screw. Each end of the bidirectional screw is threadedly connected to a clamping block, and the clamping block is slidably connected to the sliding groove.
[0014] The beneficial effects of this utility model are as follows:
[0015] 1. By combining the protective case and the cover, a closed box structure is formed, which can fully enclose the car key. This avoids the problem of traditional protective cases only protecting the area around the key while exposing the buttons. The cover covers the opening of the protective case, effectively preventing external objects from impacting the key buttons, reducing the risk of button damage, and thus extending the service life of the car key.
[0016] 2. The combination of the limiting rod and the limiting hole enables quick locking and unlocking of the cover. Simply push the linkage plate with the squeezing rod to easily disconnect the cover from the protective case, making it convenient to take out and put away the key and operate the buttons. This not only improves the ease of use but also enhances the practicality of the protective case.
[0017] 3. By setting up a fixing component, and using the cooperation of a two-way screw and a clamping block, it can be adjusted according to the size of the key, ensuring that keys of different sizes can be firmly fixed in the protective shell, thus improving the versatility of the protective shell and making it compatible with various car key models. Attached Figure Description
[0018] Figure 1 This is a perspective view of the present invention.
[0019] Figure 2 A cross-sectional view of this utility model Figure 1 .
[0020] Figure 3 This utility model Figure 2 An enlarged schematic diagram of the structure at point A in the middle.
[0021] Figure 4 A cross-sectional view of this utility model Figure 2 .
[0022] In the diagram: 1. Protective shell; 2. Shell cover; 3. Lifting ring; 4. Limiting seat; 5. Support seat; 6. Slide groove; 7. Bidirectional screw; 8. Clamping block; 9. Moving groove; 10. Moving block; 11. First spring; 12. Limiting rod; 13. Limiting hole; 14. Control box; 15. Linkage plate; 16. Pressing rod; 17. Limiting plate; 18. Top rod; 19. Second spring. Detailed Implementation
[0023] The following will refer to the attached reference. Figures 1 to 4 The various embodiments of this utility model will be described in detail below. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of this utility model and are not intended to limit the scope of protection of this utility model.
[0024] A high-strength car key protective shell, such as Figures 1 to 4 As shown, it includes a protective shell 1, a lifting ring 3 fixedly connected to the protective shell 1, and a shell cover 2 rotatably connected to the protective shell 1.
[0025] The top surface of the protective shell 1 is open, and the protective shell 1 can be suspended in a suitable position by the lifting ring 3. The shell cover 2 is located at the opening of the protective shell 1, and the shell cover 2 covers the opening of the protective shell 1 to seal the opening.
[0026] A limiting seat 4 is fixedly connected inside the protective shell 1. A limiting hole 13 is opened on the shell cover 2. A moving groove 9 is opened on the limiting seat 4. A moving block 10 is slidably connected in the moving groove 9. A limiting rod 12 is fixedly connected to the moving block 10. The limiting rod 12 is inserted into the limiting hole 13 to limit the shell cover 2. A first spring 11 is provided below the moving block 10.
[0027] When the cover 2 is rotated to close the protective cover 1, the moving groove 9 and the limiting hole 13 are aligned. Under the elastic support of the first spring 11, the moving block 10 drives the limiting rod 12 to be inserted into the limiting hole 13 to limit the cover 2, so that the protective cover 1 and the cover 2 form a closed box structure to protect the key.
[0028] In this embodiment, the cover 2 is provided with a moving component for pushing the limiting rod 12 out of the limiting hole 13. The moving component includes a control box 14 fixedly connected to the cover 2. A linkage plate 15 is slidably connected inside the control box 14. A top rod 18 is fixedly connected to the linkage plate 15, and the bottom end of the top rod 18 passes through the control box 14 and is inserted into the limiting hole 13.
[0029] When it is necessary to disconnect the protective shell 1 from the cover 2, the linkage plate 15 can be moved down in the control box 14, and the top rod 18 on the linkage plate 15 can be inserted into the limiting hole 13, and the limiting rod 12 can be pushed out from the inside of the limiting hole 13, thereby disconnecting the protective shell 1 from the cover 2, so that the cover 2 can be rotated on the protective shell 1 to expose the opening to the outside, thereby enabling the key to be picked up and put away and the key buttons to be pressed.
[0030] The linkage plate 15 is fixedly connected to a pressing rod 16, and the top end of the pressing rod 16 passes through the control box 14 and extends to the top of the control box 14. A second spring 19 is provided inside the control box 14, and the two ends of the second spring 19 abut against the linkage plate 15 and the control box 14 respectively.
[0031] The linkage plate 15 is pushed by the compression rod 16, and the second spring 19 supports the linkage plate 15 with its own elasticity. After the compression rod 16 releases the pushing force on the linkage plate 15, the second spring 19 can drive the linkage plate 15 to reset.
[0032] Furthermore, a limiting plate 17 is fixedly connected to the extrusion rod 16, and the limiting plate 17 is located above the control box 14. The limiting plate 17 facilitates the pushing of the extrusion rod 16, and the limiting plate 17 can also limit the movement distance of the extrusion rod 16.
[0033] In this embodiment, a fixing component for clamping and fixing the key is provided inside the protective shell 1. The fixing component includes two support seats 5 fixedly connected to the bottom wall of the inner wall of the protective shell 1. Each of the two support seats 5 has a sliding groove 6. A bidirectional screw 7 is rotatably connected to each of the two sliding grooves 6. A clamping block 8 is threadedly connected to both ends of the bidirectional screw 7, and the clamping block 8 is slidably connected to the sliding groove 6.
[0034] When keys of different sizes are installed inside the protective housing 1, both ends of the key can be placed on the two support seats 5 respectively. By rotating the bidirectional screw 7, the two clamping blocks 8 move towards each other in the slide groove 6, thereby pressing the clamping blocks 8 against the key and fixing the key. This allows for the installation and fixing of keys of different sizes.
[0035] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0036] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0037] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.
Claims
1. A high-strength automobile key protection case comprising a protection case (1), characterized in that, The protective shell (1) is rotatably connected to a cover (2), and a limiting seat (4) is fixedly connected inside the protective shell (1). A limiting hole (13) is opened on the cover (2), and a moving groove (9) is opened on the limiting seat (4). A moving block (10) is slidably connected inside the moving groove (9). A limiting rod (12) is fixedly connected on the moving block (10), and the cover (2) is limited by the limiting rod (12) inserted into the limiting hole (13). A first spring (11) is provided below the moving block (10). A moving component is provided on the cover (2) for pushing the limiting rod (12) out of the limiting hole (13). A fixing component for clamping and fixing the key is provided inside the protective shell (1).
2. The high-strength protective case for a car key according to claim 1, wherein A lifting ring (3) is fixedly connected to the protective shell (1).
3. The high-strength protective case for a car key according to claim 1, wherein The moving component includes a control box (14) fixedly connected to the cover (2), a linkage plate (15) slidably connected inside the control box (14), a top rod (18) fixedly connected to the linkage plate (15), and the bottom end of the top rod (18) passes through the control box (14) and is inserted into the limiting hole (13).
4. A high-strength car key protective shell according to claim 3, characterized in that, A pressing rod (16) is fixedly connected to the linkage plate (15), and the top end of the pressing rod (16) passes through the control box (14) and extends to the top of the control box (14). A second spring (19) is provided inside the control box (14), and the two ends of the second spring (19) abut against the linkage plate (15) and the control box (14) respectively.
5. A high-strength car key protective shell according to claim 4, characterized in that, A limiting plate (17) is fixedly connected to the extrusion rod (16), and the limiting plate (17) is located above the control box (14).
6. A high-strength car key protective shell according to claim 1, characterized in that, The fixing assembly includes two support seats (5) fixedly connected to the bottom wall of the inner shell (1). Each of the two support seats (5) has a sliding groove (6). Each of the two sliding grooves (6) is rotatably connected to a bidirectional screw (7). Both ends of the bidirectional screw (7) are threadedly connected to a clamping block (8), and the clamping block (8) is slidably connected to the sliding groove (6).