Key chain lamp
By designing a U-shaped hook and a rotating connection between the hook and the base, along with a flexible locking mechanism, and combining LED lights and a buzzer, the problem of the key ring easily detaching is solved. This achieves a compact structure and multifunctionality for the key ring light, providing emergency lighting and alarm functions.
Patent Information
- Application Number
- CN202520603362.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-04-02
AI Technical Summary
Existing key ring lights are prone to losing their key rings due to accidental collisions, and they also lack multi-functional emergency lighting and alarm functions.
A keychain light was designed, which uses a U-shaped hook to rotate and connect to the base. An axial limit is achieved by a locking component with an elastic structure. Combined with an LED light and a buzzer, the hook and the outer shell form a closed structure. The hook can rotate freely, making it easy to hang the key ring. It also has a rechargeable LED light and a buzzer, providing lighting and alarm functions.
It features a key ring that is not easily detached, a compact and reasonable structure, emergency lighting and alarm functions, ease of use, and meets diverse needs.
Smart Images
Figure CN223730853U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a keychain light. Background Technology
[0002] In low-light environments, people often rely on their mobile phones' flashlight function for emergency illumination. However, situations sometimes arise, such as forgetting to bring the phone, the phone running out of battery, or difficulty in taking out the phone. In these cases, alternative lighting tools are needed. Currently, there are keychain lights on the market that can be carried with keys. Existing keychain lights generally use a torsion spring on one side of the clasp to set a torsion-type elastic rod for easy locking of the key ring. The operation is simple, but during use, the elastic rod is easily bumped unintentionally, causing the key ring to detach from the keychain light, resulting in the loss of keys. Utility Model Content
[0003] To address the shortcomings mentioned above, this utility model provides a keychain light.
[0004] To achieve the above objectives, this utility model provides a keychain light, including a hollow outer shell, the outer shell including a cover and a base, the base containing a circuit board, one end of the outer shell having an LED light that projects outward and is electrically connected to the circuit board, and the other end of the outer shell having a hook, on which a key ring is movably fitted for hanging a key;
[0005] The hook has a U-shaped structure. One end of the hook has a positioning shaft, which is rotatably connected to the base and axially limited by a locking component. The base has a positioning groove to accommodate the locking component and the positioning shaft. The positioning shaft has an annular groove machined circumferentially. A limiting block is fitted on the locking component. After the positioning shaft passes through the through hole in the middle of the locking component, the limiting block engages with the annular groove. A compression spring is provided at the end of the positioning shaft, and a compression spring I is provided at the inner end of the locking component. The other end of the hook has a limiting post that matches the limiting hole on the base. After pressing the locking component, the limiting post can pop out of the limiting hole, and the hook can rotate freely.
[0006] As a further improvement of this utility model, the inner diameter of the through hole matches the outer diameter of the positioning shaft, a side groove is machined on the side of the through hole near the compression spring I, the shape of the side groove matches the annular groove, and an arc-shaped groove is machined at the end of the limiting block to match the annular groove.
[0007] As a further improvement of this utility model, the lower part of the positioning groove is provided with a sliding groove, the lower part of the positioning shaft extends into the sliding groove and is provided with an annular protrusion, the compression spring is sleeved below the annular protrusion, and the other end of the compression spring abuts against the inner wall of the sliding groove.
[0008] As a further improvement of this utility model, the circuit board is provided with a USB charging port, a buzzer, and a rechargeable battery on the side facing the cover. The base has an opening on one side corresponding to the USB charging port and a dust cover is installed thereon. The other side of the base is provided with a buzzer switch for controlling the buzzer. An LED light button switch is provided at the center of the bottom of the base for controlling the LED light.
[0009] As a further improvement of this utility model, a sound-speaking hole is provided in the middle of the cover, and a loudspeaker is provided inside the sound-speaking hole.
[0010] As a further improvement of this utility model, the LED light is housed in the positioning hole at the end of the outer shell. The positioning hole is located at the connection between the cover and the base, and the positioning hole is open to the outside.
[0011] The beneficial effects of this utility model are as follows:
[0012] This keychain light has a compact and reasonable structure. One end of the hook is rotatably connected to the base via a positioning shaft and is axially positioned using a locking component with an elastic structure. The other end of the hook has a limiting post that cooperates with a limiting hole on the base to restrict the hook's rotation. A closed structure is formed between the hook and the outer shell, making it difficult for the key ring to fall off the hook. Pressing the locking component allows the hook to partially pop out and rotate freely, facilitating the hanging of the key ring. It has a built-in rechargeable LED light to help users illuminate in dark environments and facilitate key use. It also has a built-in buzzer that users can turn on to sound an alarm when needed. It is multifunctional and easy to use. Attached Figure Description
[0013] Figure 1 This utility model relates to an explosion of a keychain lamp. Figure 1 ;
[0014] Figure 2 This utility model relates to an explosion of a keychain lamp. Figure 2 ;
[0015] Figure 3 This is a cross-sectional view of a keychain light according to the present invention;
[0016] Figure 4 This is a 3D view of hook 3;
[0017] Figure 5 This is a perspective view of locking component 5;
[0018] Figure 6 This is a perspective view of a keychain light according to the present invention.
[0019] In the diagram: 1. Cover; 11. Speaker hole; 12. Speaker; 2. Base; 21. Positioning groove; 211. Slide groove; 22. LED light button switch; 23. Dust cover; 24. Positioning hole; 25. Buzzer switch; 26. Limiting hole; 3. Hook; 31. Positioning shaft; 311. Annular groove; 312. Annular protrusion; 32. Compression spring; 33. Limiting post; 4. Key ring; 5. Locking component; 51. Through hole; 511. Side groove; 52. Limiting block; 521. Arc groove; 53. Compression spring I; 6. Circuit board; 7. USB charging port; 8. Buzzer; 9. LED light; 10. Rechargeable battery. Detailed Implementation
[0020] like Figure 1-3 As shown, the keychain lamp of this utility model includes a hollow outer shell, which includes a cover 1 and a base 2. A circuit board 6 is provided inside the base 2. An LED light 9 that projects outward and is electrically connected to the circuit board 6 is provided at one end of the outer shell. The LED light 9 is housed in a positioning hole 24 at the end of the outer shell. The positioning hole 24 is located at the connection between the cover 1 and the base 2 and is open to the outside. A hook 3 is provided at the other end of the outer shell. A key ring 4 is movably sleeved on the hook 3 for hanging a key. A USB charging interface 7, a buzzer 8, and a rechargeable battery 10 are provided on the side of the circuit board 6 facing the cover 1. An opening is provided on one side of the base 2 corresponding to the USB charging interface 7 and a dust cover 23 is installed. A buzzer switch 25 is provided on the other side of the base 2 for controlling the buzzer 8. An LED light button switch 22 is provided at the center of the bottom of the base 2 for controlling the LED light 9. A speaker hole 11 is opened in the middle of the cover 1, and a speaker 12 is provided inside the speaker hole 11.
[0021] The hook 3 has a U-shaped structure. One end of the hook 3 is provided with a positioning shaft 31. The positioning shaft 31 is rotatably connected to the base 2 and is axially limited by the locking member 5. The base 2 is provided with a positioning groove 21 to accommodate the locking member 5 and the positioning shaft 31. The positioning shaft 31 has an annular groove 311 machined circumferentially. The locking member 5 is provided with a limiting block 52. After the positioning shaft 31 passes through the through hole 51 in the middle of the locking member 5, the limiting block 52 is engaged and inserted into the annular groove 311. The inner diameter of the through hole 51 matches the outer diameter of the positioning shaft 31. A side groove 511 is machined on the side of the through hole 51 near the compression spring I 53 (see Figure 5 The side groove 511 is shaped to match the annular groove 311. The end of the limiting block 52 is machined with an arc-shaped groove 521 to match the annular groove 311. The end of the positioning shaft 31 is provided with a compression spring 32. The lower part of the positioning groove 21 is provided with a sliding groove 211. The lower part of the positioning shaft 31 extends into the sliding groove 211 and is provided with an annular protrusion 312 (see...). Figure 4The compression spring 32 is sleeved below the annular protrusion 312, and the other end of the compression spring 32 abuts against the inner wall of the slide groove 211. The inner end of the locking part 5 is provided with a compression spring I 53, and the other end of the hook 3 is provided with a limiting post 33 that matches the limiting hole 26 on the base 2. After pressing the locking part 5, the limiting post 33 can pop out of the limiting hole 26, and the hook 3 can rotate freely.
[0022] This keychain light has a compact and reasonable structure. One end of the hook is rotatably connected to the base via a positioning shaft and is axially positioned using a locking component with an elastic structure. The other end of the hook has a limiting post that cooperates with a limiting hole on the base to restrict the hook's rotation. A closed structure is formed between the hook and the outer shell, making it difficult for the key ring to fall off the hook. Pressing the locking component allows the hook to partially pop out and rotate freely, facilitating the hanging of the key ring. It has a built-in rechargeable LED light to help users illuminate in dark environments and facilitate key use. It also has a built-in buzzer that users can turn on to sound an alarm when needed. It is multifunctional and easy to use.
[0023] In practical use, for ease of understanding of this utility model, it will be described in conjunction with the accompanying drawings;
[0024] When using this keychain light, simply press the LED light button switch in the middle of the base to turn on the LED light, and press the buzzer switch on the side of the base to turn on the buzzer. When you need to hang a key ring, simply press the outside of the locking mechanism. The compression spring I on the inside of the locking mechanism will elastically contract, and the limiting block on the locking mechanism will disengage from the annular groove on the positioning shaft. The compression spring at the bottom of the positioning shaft will push the bottom of the positioning shaft out of the positioning groove, and the limiting post at the other end of the hook will disengage from the limiting hole on the base. The hook can then rotate freely around the positioning shaft. After hanging the key ring on the hook, rotate the limiting post at the end of the hook to correspond to the position of the limiting hole on the base, and then press the hook towards the base until the limiting block on the locking mechanism is pressed into the annular groove under the elastic restoring force of the compression spring I. At this time, the limiting post at the other end of the hook also extends into the limiting hole on the base, forming a closed structure between the hook and the outer shell, making it difficult for the key ring to fall off the hook.
[0025] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A key fob light, characterized by: The utility model provides a hollow shell, the shell includes cover (1) and base (2), be equipped with circuit board (6) in base (2), one end of shell is equipped with the LED lamp (9) that projects outward and is electrically connected with circuit board (6), the other end of shell is equipped with the hanging buckle (3), the key ring (4) for hanging key is movably sleeved on hanging buckle (3), The hanging buckle (3) is in U-shaped structure, one end of the hanging buckle (3) is provided with a positioning shaft (31), the positioning shaft (31) is rotatably connected with the base (2) and is axially limited by a locking member (5), the base (2) is provided with a positioning groove (21) for accommodating the locking member (5) and the positioning shaft (31), the positioning shaft (31) is circumferentially processed with an annular groove (311), the locking member (5) is provided with a limiting block (52) matched thereon, the positioning shaft (31) passes through the through hole (51) in the middle of the locking member (5), and then the limiting block (52) is matched and clamped into the annular groove (311), the end of the positioning shaft (31) is provided with a compression spring (32), the inner end of the locking member (5) is provided with a compression spring I (53), the other end of the hanging buckle (3) is provided with a limiting column (33) matched with a limiting hole (26) on the base (2), after pressing the locking member (5), the limiting column (33) can be popped out of the limiting hole (26), and the hanging buckle (3) can be freely rotated.
2. A key fob light according to claim 1, wherein: The inner diameter of the through hole (51) matches the outer diameter of the positioning shaft (31), a side recess (511) is processed on the side of the through hole (51) close to the compression spring I (53), the side recess (511) is matched with the annular groove (311) in shape, and an arc-shaped groove (521) is processed on the end of the limiting block (52) and matched with the annular groove (311).
3. A key fob light according to claim 1, wherein: The lower part of the positioning groove (21) is provided with a sliding groove (211), the lower part of the positioning shaft (31) extends into the sliding groove (211) and is provided with an annular convex edge (312), the compression spring (32) is sleeved below the annular convex edge (312), and the other end of the compression spring (32) abuts against the inner wall of the sliding groove (211).
4. The keychain light of claim 1, wherein: The side of the circuit board (6) facing the cover (1) is provided with a USB charging interface (7), a buzzer (8) and a charging battery (10), one side of the base (2) is provided with an opening corresponding to the USB charging interface (7) and is provided with a dust cover (23), the other side of the base (2) is provided with a buzzer switch (25) for controlling the buzzer (8), and the bottom center of the base (2) is provided with an LED lamp key switch (22) for controlling the LED lamp (9).
5. A key fob light according to claim 4, wherein: The cover (1) is provided with a loudspeaker hole (11) in the middle, and the inside of the loudspeaker hole (11) is provided with a loudspeaker (12).
6. A key fob light according to claim 1, wherein: The LED lamp (9) is accommodated in the positioning hole (24) at the end of the shell, the positioning hole (24) is arranged at the connection between the cover (1) and the base (2), and the positioning hole (24) is communicated inside and outside.