Anti-collision press-unlock key fob
By incorporating a flexible limiting structure with a locking plate and a stopper block on the keychain, the problems of cumbersome keychain operation and accidental detachment are solved, achieving both quick unlocking and collision prevention.
Patent Information
- Application Number
- CN202522758893.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-26
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-26
AI Technical Summary
Existing keychains are cumbersome to open, difficult to unlock quickly, and prone to falling off due to accidental impacts.
A collision-resistant, press-to-unlock key fob was designed. By setting a card plate and a plug block on the U-shaped plate, the key fob can be quickly unlocked by using the elastic rotation and pressing operation of the card plate. The card plate rotation is restricted by the cooperation of the mounting groove and the card slot to prevent accidental detachment.
It enables quick opening of the keychain and prevents accidental detachment, reduces the risk of the card plate being rotated by impact, and improves ease of use and safety.
Smart Images

Figure CN224924662U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of keychains, and more specifically to an anti-collision, press-to-unlock keychain. Background Technology
[0002] Keychains are attached to key rings to connect with clothing, making it convenient to carry keys and preventing them from being lost. For example, the automatic locking keychain with announcement number CN219877602U includes an arc-shaped plate, a pin at one end of the arc-shaped plate, a central seat rotating on the pin, and a mating block fixed to the central seat. The side of the mating block away from the central seat is fitted against the other end of the arc-shaped plate. A locking mechanism is located on the side of the arc-shaped plate near the pin, limiting the rotation of the central seat. The locking mechanism includes a limiting frame fixed to the arc-shaped plate near the pin end, a sliding rod sliding within the limiting frame, and a locking shaft fixed to the sliding rod near the pin end. The central seat has a locking hole, and a spring is provided between the sliding rod and the limiting frame, allowing the locking shaft to insert into the locking hole. At this time, the mating block seals the open end of the arc-shaped plate. This invention effectively prevents the keychain from accidentally falling off. However, this technical solution requires pushing the locking shaft to slide axially to rotate the mating block when opening the keychain, making the operation of opening the keychain rather cumbersome. Utility Model Content
[0003] This utility model provides an anti-collision press-to-unlock keychain, which prevents the keychain from accidentally falling off and allows for quick opening of the keychain.
[0004] The technical solution adopted by this utility model to solve the above problems is as follows:
[0005] The anti-collision press-to-unlock key fob includes a U-shaped plate for connecting to clothing and a plug block for controlling the opening or closing of the U-shaped plate opening. The U-shaped plate includes a semi-circular plate and a long plate and a short plate extending from both ends of the semi-circular plate. A mounting plate extends from the end of the short plate away from the semi-circular plate. The mounting plate has a mounting groove in the middle. The plug block rotates in the mounting groove away from the end of the short plate. A retaining plate is elastically mounted inside the mounting groove, so that the retaining plate automatically and elastically moves closer to the plug block away from the end of the short plate. When the plug block closes the opening of the U-shaped plate, the retaining plate can automatically limit and lock the plug block in this state. By pressing the retaining plate closer to the end of the short plate, the other end of the retaining plate moves away from the plug block, releasing the limit and lock on the plug block.
[0006] A transverse shaft runs through the mounting plate and the clamping plate, forming a rotatable connection between the clamping plate and the mounting plate. A mounting platform is provided in the mounting groove near the end of the short plate, and a spring is provided between the mounting platform and the clamping plate.
[0007] The mounting platform has a protrusion at the end away from the short plate to restrict the elastic rotation of the clamping plate.
[0008] The plug block includes a connecting block and a rotating shaft, and the connecting block rotates within the mounting groove via the rotating shaft.
[0009] The connecting block has a contact surface at the end away from the pivot. When the connecting block is rotated through the pivot to close the opening of the U-shaped plate, the contact surface is in contact with the inner side of the long plate.
[0010] When the plug block closes the opening of the U-shaped plate, the connecting block is provided with a closing slot at the corresponding card plate. The card plate enters the closing slot away from the short plate end, restricting the rotation of the connecting block.
[0011] The connecting block is also provided with an opening slot. When the connecting block rotates to the point where the U-shaped plate opening is open, the plate moves away from the short plate end and enters the opening slot, which restricts the rotation of the connecting block again.
[0012] When the connecting block seals the opening between the long plate and the short plate, the connecting block has a protrusion extending towards the semi-circular plate.
[0013] The protrusion is a roller that rotates laterally on the connecting block.
[0014] The connecting block has a through mounting hole.
[0015] The beneficial effects of this utility model are:
[0016] When the U-shaped plate is closed, the locking plate automatically and elastically presses against the end of the plug near the plug, limiting the plug and keeping it in this position, thus preventing the key ring from accidentally falling off. When opening the key ring, pressing the locking plate causes it to rotate against the elastic force, moving the end of the locking plate away from the plug. At this point, the plug can be controlled to rotate outward, opening the U-shaped plate and quickly opening the key ring. Simultaneously, the locking plate's installation inside the mounting groove protects it from accidental impacts, greatly reducing the risk of rotation. Attached Figure Description
[0017] Figure 1 A schematic diagram showing the structure of the key fob when pressed to unlock and close in case of impact;
[0018] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure;
[0019] Figure 3 A schematic diagram showing the structure of the key fob when pressed to unlock it in case of impact.
[0020] Figure 4 for Figure 3 A schematic diagram of the cross-sectional structure;
[0021] Figure 5This is a schematic diagram of the U-shaped plate structure;
[0022] Figure 6 This is a schematic diagram of the plug block.
[0023] In the picture:
[0024] Long plate 1; Semicircular plate 2; Short plate 3; Connecting block 4; Mounting plate 5; Mounting groove 501; Mounting platform 502; Spring 503; Clamping plate 6; Horizontal shaft 7; Rotating shaft 8; Roller 9; Mounting hole 10; Closing groove 11; Opening groove 12. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] The following is combined Figure 1-6 Detailed explanation of the anti-collision press-to-unlock keychain:
[0027] The anti-collision press-to-unlock key fob includes a U-shaped plate for connecting with clothing and a plug block for controlling the opening or closing of the U-shaped plate opening. The U-shaped plate includes a semi-circular plate 2 and a long plate 1 and a short plate 3 extending from both ends of the semi-circular plate 2. A mounting plate 5 extends from the end of the short plate 3 away from the semi-circular plate 2. The mounting plate 5 has a mounting groove 501 in the middle. The plug block rotates within the mounting groove 501 away from the end of the short plate 3. A retaining plate 6 is elastically rotatably mounted inside the mounting groove 501, so that the end of the retaining plate 6 away from the short plate 3 automatically elastically approaches the plug block. When the plug block closes the opening of the U-shaped plate, the retaining plate 6 can automatically limit and lock the plug block in this state. By pressing the retaining plate 6 close to the end of the short plate 3, the other end of the retaining plate 6 moves away from the plug block, releasing the limit and locking of the plug block.
[0028] When the U-shaped plate is closed, the clamping plate 6 is located in the mounting groove 501. Through the elastic force acting on it, the clamping plate 6 automatically and elastically presses against the end of the plug block, forming a limit on the plug block, thereby keeping the plug block in this state and thus preventing the key ring from accidentally falling off.
[0029] When opening the key fob, press the latch plate 6 to make the latch plate 6 rotate against the elastic force, so that the latch plate 6 moves away from the end of the plug block. At this time, the plug block can be controlled to rotate outward, thereby opening the opening end of the U-shaped plate, thus achieving the purpose of quickly opening the key fob.
[0030] Meanwhile, the installation of the card plate 6 inside the mounting groove 501 provides protection for the card plate 6 by the mounting plates 5 on both sides of the mounting groove 501, greatly reducing the possibility of the card plate 6 rotating due to impact.
[0031] Among them, the U-shaped plate is a one-piece structure and is made of elastic material, and clothing generally refers to belts or trouser belts.
[0032] Further:
[0033] A transverse shaft 7 runs through the mounting plate 5 and the clamping plate 6, forming a rotatable connection between the clamping plate 6 and the mounting plate 5. A mounting platform 502 is provided in the mounting groove 501 near the end of the short plate 3, and a spring 503 is provided between the mounting platform 502 and the clamping plate 6.
[0034] The horizontal axis 7 passes through both the mounting plate 5 and the clamping plate 6 laterally, allowing the clamping plate 6 to rotate within the mounting groove 501. The spring 503 pushes the clamping plate 6 closer to the end of the short plate 3, causing the clamping plate 6 to rotate automatically around the horizontal axis 7. This causes the other end to automatically approach the plug block, thus automatically locking the plug block. At the same time, this prevents the clamping plate 6 from rotating freely around the horizontal axis 7, which would prevent continuous locking of the plug block.
[0035] Further:
[0036] The mounting platform 502 has a protrusion at the end away from the short plate 3 to restrict the elastic rotation of the clamping plate 6.
[0037] The protrusions limit the rotation of the clamping plate 6 when pushed by the spring 503, preventing the clamping plate 6 from automatically rotating into the U-shaped plate when the plug is opened, thus affecting the rotation of the plug.
[0038] Further:
[0039] The plug block includes a connecting block 4 and a rotating shaft 8. The connecting block 4 rotates within the mounting groove 501 via the rotating shaft 8.
[0040] The connecting block 4 has a contact surface at the end away from the rotating shaft 8. When the connecting block 4 is rotated through the rotating shaft 8 to close the opening of the U-shaped plate, the contact surface is in contact with the inner side of the long plate 1.
[0041] By setting the contact surface, the connecting block 4 is restricted from continuing to rotate inside the U-shaped plate around the pivot 8 after the opening of the U-shaped plate is closed. At the same time, when the opening of the U-shaped plate is closed, the connecting block 4 is in surface contact with the long plate 1, which further prevents the key ring from accidentally falling off.
[0042] Furthermore, through this contact surface, when the connecting block 4 is pushed to rotate and open the opening of the U-shaped plate, the connecting block 4 needs to overcome the elastic deformation of the U-shaped plate in order to rotate, forming a restriction on the rotation of the connecting block 4 by the long plate 1, which can further form a restriction on the locking state of the plug block. Moreover, when closing the key buckle, the plug block can be automatically stopped after rotating to the closed state.
[0043] Further:
[0044] When the plug closes the opening of the U-shaped plate, the connecting block 4 is provided with a closing slot 11 at the corresponding position of the card plate 6. The card plate 6 enters the closing slot 11 at the end away from the short plate 3, thus restricting the rotation of the connecting block 4.
[0045] By closing the slot 11, when the plug closes the opening of the U-shaped plate, the card plate 6 automatically rotates into the closing slot 11. The end face of the card plate 6 near the connecting block 4 contacts the inner wall of the closing slot 11. Thus, the contact between the two end faces restricts the outward rotation of the connecting block 4 around the pivot 8, thereby limiting the connection block 4 in the closed state and effectively preventing the opening of the U-shaped plate from opening due to the force of the connecting block 4, which could cause the keychain to fall off accidentally.
[0046] When it is necessary to open, press the latch 6 so that the latch 6 rotates out of the closing latch 11, and then rotate the connecting block 4 to open it;
[0047] Moreover, since the card plate 6 is restricted by the boss, when the connecting block 4 is rotated from the open state to the closed state, the closing can be completed by directly pushing the connecting block 4 to rotate, and the card plate 6 can automatically enter the closing slot 11 to complete the automatic limit locking.
[0048] Further:
[0049] The connecting block 4 is also provided with an opening slot 12. When the connecting block 4 rotates to the point where the U-shaped plate opening is open, the plate 6 enters the opening slot 12 away from the short plate 3 through the card plate 6, which restricts the rotation of the connecting block 4 again.
[0050] When the connecting block 4 is opened, it loses its limit and will rotate freely around the pivot 8, affecting the wearing of the U-shaped plate onto the clothing. Therefore, an opening slot 12 is provided. By pressing the locking plate 6 away from the closing slot 11, the connecting block 4 is rotated to open the U-shaped plate. After the connecting block 4 is rotated to the maximum opening degree of the U-shaped plate, the locking plate 6 is released, and the locking plate 6 can automatically rotate into the opening slot 12, thereby locking the connecting block 4 in this state again. This makes it easier to wear the U-shaped plate onto the clothing.
[0051] Further:
[0052] When the connecting block 4 blocks the opening between the long plate 1 and the short plate 3, the connecting block 4 has a protrusion extending towards the semi-circular plate 2.
[0053] By setting the protrusion, the overall area of the surface contact between the connecting block 4 and the long plate 1 is distributed on both sides of the rotating shaft 8, thereby making the connection block 4 more stable in sealing the opening end of the U-shaped plate.
[0054] By utilizing the elastic properties of the U-shaped plate, rotating the connecting block 4 causes the protrusion to press against the long plate 1, deforming the long plate 1 and causing the protrusion to rotate to the outside of the U-shaped plate, thus opening the U-shaped plate. After the protrusion slides past the long plate 1, the long plate 1 will automatically return to its original shape due to its own elasticity.
[0055] Further:
[0056] The protrusion is a roller 9 that rotates laterally on the connecting block 4.
[0057] When the connecting block 4 rotates to open the U-shaped plate, the sliding friction between the protrusion and the long plate 1 can be transformed into rolling friction, thus making it easier for the connecting block 4 to rotate.
[0058] Further:
[0059] The connecting block 4 has a through mounting hole 10, which makes it easy to put the key ring on the connecting block 4.
[0060] Of course, the above description is not a limitation of this instruction manual, and this utility model is not limited to the examples mentioned above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model are also within the protection scope of this utility model.
Claims
1. Anti-collision press-to-unlock key fob, characterized in that: The device includes a U-shaped plate for connecting with clothing and a plug for controlling the opening or closing of the U-shaped plate. The U-shaped plate includes a semi-circular plate (2) and a long plate (1) and a short plate (3) extending from both ends of the semi-circular plate (2). The short plate (3) has a mounting plate (5) extending from the end away from the semi-circular plate (2). The mounting plate (5) has a mounting groove (501) in the middle. The plug rotates in the mounting groove (501) away from the end of the short plate (3). A retaining plate (6) is elastically mounted inside the mounting groove (501), so that the retaining plate (6) automatically and elastically approaches the plug from the end away from the short plate (3). When the plug closes the opening of the U-shaped plate, the retaining plate (6) can automatically limit and lock the plug in this state. By pressing the retaining plate (6) close to the end of the short plate (3), the other end of the retaining plate (6) moves away from the plug, thus releasing the limit and locking of the plug.
2. The anti-collision press-to-unlock key fob according to claim 1, characterized in that: A transverse shaft (7) runs through the mounting plate (5) and the clamping plate (6) to form a rotatable connection between the clamping plate (6) and the mounting plate (5). A mounting platform (502) is provided in the mounting groove (501) near the end of the short plate (3). A spring (503) is provided between the mounting platform (502) and the clamping plate (6).
3. The anti-collision press-to-unlock key fob according to claim 2, characterized in that: The mounting platform (502) has a boss at the end away from the short plate (3) to restrict the elastic rotation of the card plate (6).
4. The anti-collision press-to-unlock key fob according to claim 2, characterized in that: The plug block includes a connecting block (4) and a rotating shaft (8), wherein the connecting block (4) rotates within the mounting groove (501) via the rotating shaft (8).
5. The anti-collision press-to-unlock key fob according to claim 4, characterized in that: The connecting block (4) has a contact surface at the end away from the rotating shaft (8). When the connecting block (4) is rotated through the rotating shaft (8) to close the opening of the U-shaped plate, the contact surface is in contact with the inner side of the long plate (1).
6. The anti-collision press-to-unlock key fob according to claim 5, characterized in that: When the plug closes the opening of the U-shaped plate, the connecting block (4) is provided with a closing slot (11) at the corresponding position of the card plate (6). The card plate (6) enters the closing slot (11) away from the short plate (3) to restrict the rotation of the connecting block (4).
7. The anti-collision press-to-unlock key fob according to claim 6, characterized in that: The connecting block (4) is also provided with an opening slot (12). When the connecting block (4) rotates to the point where the U-shaped plate opening is open, it enters the opening slot (12) through the end of the card plate (6) away from the short plate (3), thus restricting the rotation of the connecting block (4) again.
8. The anti-collision press-to-unlock key fob according to claim 5, characterized in that: When the connecting block (4) blocks the opening between the long plate (1) and the short plate (3), the connecting block (4) has a protrusion extending in the direction of the semicircular plate (2).
9. The anti-collision press-to-unlock key fob according to claim 8, characterized in that: The protrusion is a roller (9) that rotates laterally on the connecting block (4).
10. The anti-collision press-to-unlock key fob according to claim 4, characterized in that: The connecting block (4) has a through mounting hole (10).
Citation Information
Patent Citations
Automatic locking key chain
CN219877602U
