A key fob

Abstract

The utility model discloses a key ring, including the casing, the casing defines a sliding channel, the buckle ring's first end and second end are movably inserted in the casing, and are equipped with the notch between first end and second end, the locking portion, the first end is connected in the locking portion, and at least part locking portion movably inserts in the sliding channel, the locking portion drives first end and second end and separates the casing, to make the buckle ring switch from the locking state to the unlocking state. Through the setting of above -mentioned structure, in the natural state (i.e. locking state), and the first end and the second end of buckle ring are respectively stably inserted in the casing. When needing to unlock, the user exerts a force to the casing, so that the locking portion slides in the sliding channel and generates displacement, and then through the connecting relationship between it and the first end of the buckle ring, the buckle ring is driven to move, so that it separates from the casing, and then switches to the unlocking state, which is convenient for hanging or taking down the article.

Description

Technical Field

[0001] This utility model relates to the field of lock technology, and in particular to a keychain with locking function. Background Technology

[0002] As an everyday personal item, the main function of a keychain is to securely and conveniently carry and manage keys, USB drives, small tools, or decorative items. An ideal keychain needs to ensure reliable connection and prevent items from accidentally falling off, while also being easy to use and durable for long-term use.

[0003] Currently, most keychains on the market are hook-and-loop, metal plate, or magnetic types. Rotary hook-and-loop keychains are not convenient to operate and require a lot of force to open. Metal spring structures are prone to plastic deformation after repeated fatigue use, resulting in weakened clamping force and the risk of items accidentally falling off. Magnetic keychains use the attraction of magnets to connect, which is convenient to operate, but the magnetic force is easily weakened by impact and high temperature, and there is a risk of being forcibly pulled off by strong external force, making it difficult to meet the security needs of carrying important items.

[0004] Therefore, this utility model provides a keychain that can effectively solve the above problems. It has a simple structure, good performance, and allows for convenient operation of the keychain's locked and unlocked states. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, this utility model provides a keychain with a simple structure, good performance, and convenient operation of the keychain's locked and unlocked states.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A keychain, comprising:

[0008] A housing that defines a sliding channel;

[0009] A buckle, wherein a first end and a second end of the buckle are movably inserted into the housing, and a notch is provided between the first end and the second end;

[0010] A locking part, the first end of which is connected to the locking part, at least a portion of which is movably inserted into the sliding channel, the locking part causing the first end and the second end to disengage from the housing, so that the buckle switches from the locked state to the unlocked state.

[0011] As an improvement of this utility model, the locking part includes a sliding pin, at least a portion of which is movably inserted into the sliding channel. The sliding pin slides within the sliding channel to drive the buckle away from the housing, allowing the notch to be exposed and the buckle to switch from a locked state to an unlocked state.

[0012] As an improvement of this utility model, the sliding pin is provided with a limiting block, which limits the sliding range of the sliding pin.

[0013] As an improvement of this utility model, the locking part further includes an elastic member sleeved on the outer periphery of the sliding pin. The two ends of the elastic member abut against the upper inner wall of the limiting block and the sliding channel, respectively. In the locked state, the sliding pin slides, causing the buckle to disengage from the housing, and the notch is exposed, so that the buckle switches from the locked state to the unlocked state. The elastic member has a tendency to switch the buckle to the locked state.

[0014] As an improvement of this utility model, the housing is provided with a first retaining ring groove that communicates with the external environment, the first end is movably inserted into the first retaining ring groove, and the sliding pin slides in the first retaining ring groove and the sliding channel to drive the first end to disengage from or be inserted into the first retaining ring groove.

[0015] As an improvement of this utility model, the housing is further provided with a second retaining ring groove that communicates with the external environment. The second end is movably inserted into the second retaining ring groove, and the first end drives the second end to disengage from or insert into the second retaining ring groove.

[0016] As an improvement of this utility model, the locking part further includes a fixing pin, which is connected to the first end and the top end of the sliding pin.

[0017] As an improvement of this utility model, the housing is further provided with a through hole, which connects the first buckle groove and the sliding channel.

[0018] As an improvement of this utility model, the housing is provided with a contact end, which allows the user to slide the housing.

[0019] As an improvement to this utility model, the buckle is a circular ring structure with the notch.

[0020] The beneficial effects of this invention are as follows: With the above-described structure, in the natural state (i.e., the locked state), the first and second ends of the buckle are securely inserted into the housing. When unlocking is required, the user applies a force (such as pressing or sliding) to the housing, causing the locking part to slide and displace within the sliding channel. This displacement, through its connection with the first end of the buckle, moves the buckle, disengaging it from the housing and switching it to the unlocked state, facilitating the hanging or removal of items. This keychain achieves reliable unlocking through a simple linear sliding operation, offering advantages such as convenient operation, robust structure, and long service life. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a schematic diagram of the overall structure of the keychain in the locked state of this utility model at one angle;

[0024] Figure 2 This is a schematic diagram of the overall structure of the keychain in the locked state from another angle.

[0025] Figure 3 This is a schematic diagram of the overall structure of the keychain in the unlocked state of this utility model from one angle;

[0026] Figure 4 This is a schematic diagram of the overall structure of the keychain in the unlocked state from another angle.

[0027] Figure 5 This is a cross-sectional structural diagram of the key ring of the utility model in the locked state;

[0028] Figure 6 This is a cross-sectional structural diagram of the key ring of this utility model in the unlocked state.

[0029] Explanation of reference numerals in the attached figures:

[0030] 100. Housing; 110. Sliding channel; 120. First retaining ring groove; 130. Second retaining ring groove; 140. Through hole; 150. Contact end; 200. Retaining ring; 210. First end; 220. Second end; 230. Notch; 300. Locking part; 310. Sliding pin; 311. Limiting block; 320. Elastic element; 330. Fixing pin. Detailed Implementation

[0031] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0032] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0033] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0035] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0036] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0037] Reference Figures 1 to 6 A keychain, comprising:

[0038] Housing 100, the housing 100 defining a sliding channel 110;

[0039] The buckle 200 has a first end 210 and a second end 220 that are movably inserted into the housing 100, and a notch 230 is provided between the first end 210 and the second end 220.

[0040] The locking part 300 has a first end 210 connected to it. At least a portion of the locking part 300 is movably inserted into the sliding channel 110. The locking part 300 drives the first end 210 and the second end 220 to disengage from the housing 100, so that the buckle 200 switches from the locked state to the unlocked state.

[0041] With the above-described structure, in the natural state (i.e., the locked state), the first end 210 and the second end 220 of the buckle 200 are securely inserted into the housing 100. When unlocking is required, the user applies a force (such as pressing or sliding) to the housing 100, causing the locking part 300 to slide and displace within the sliding channel 110. This displacement, through the connection between the locking part 300 and the first end 210 of the buckle 200, moves the first end 210 and the second end 220, disengaging them from the housing 100. At this point, the notch 230 is exposed, switching to the unlocked state for easy hanging or removing of items. To switch from the unlocked state to the locked state, the user manually moves the locking part 300 in the opposite direction, re-inserting the first end 210 and the second end 220 into the housing 100. The notch 230 is no longer exposed. This keychain achieves reliable unlocking through a simple linear sliding operation, offering advantages such as convenient operation, robust structure, and long service life. Preferably, the buckle 200 is an integral structure.

[0042] In this embodiment, the locking part 300 includes a sliding pin 310, at least a portion of which is movably inserted into the sliding channel 110. The sliding pin 310 slides within the sliding channel 110, causing the retaining ring 200 to disengage from the housing 100, thus exposing the notch 230. The retaining ring 200 then switches from a locked state to an unlocked state. Through this structure, the sliding pin 310, as the core structure for power transmission, effectively transmits the user's actions to the retaining ring 200. When the user applies force to the housing 100, the sliding pin 310 moves smoothly upward within the sliding channel 110 (upward relative to the housing 100). Through the connection between the sliding pin 310 and the first end 210 of the retaining ring 200, the retaining ring 200 disengages from its insertion position within the housing 100. When switching from the unlocked to the locked state, a reverse force must be manually applied to the housing 100. The sliding pin 310 moves smoothly downward relative to the housing 100 within the sliding channel 110, and the first end 210 and the second end 220 are re-inserted into the housing 100. At this point, the notch 230 is no longer exposed. This unlocking mechanism, based on the core principle of linear sliding, has a simple and clear structure, a direct and efficient power transmission path, and effectively avoids the risk of failure that may arise from complex transmissions. It ensures the reliability of user operation and extends the service life of the keychain.

[0043] In this embodiment, the sliding pin 310 is provided with a limiting block 311, which restricts the sliding range of the sliding pin 310. Through the above structure, the limiting block 311 acts as a mechanical stop structure for the sliding pin 310, precisely limiting the movement range of the sliding pin 310 within the sliding channel 110. Preferably, the limiting block 311 is located at the bottom end of the sliding pin 310. Its working principle is as follows: when the sliding pin 310 slides relative to the housing 100, the limiting block 311 moves along with the sliding pin 310. During the upward sliding process of the sliding pin 310, the limiting block 311 eventually abuts against the inner wall at the upper end of the sliding channel 110, thereby preventing the sliding pin 310 from continuing to move upward. Therefore, the maximum sliding range of the limiting block 311 is the maximum stroke allowed by the sliding channel 110 for the sliding pin 310 to move. Optionally, the limiting block 311 can be integrally formed with the sliding pin 310, and the width of the limiting block 311 is greater than the width of the sliding pin 310, but smaller than the diameter of the sliding channel 110. Preferably, the bottom of the sliding channel 110 is connected to the external environment. In the locked state, the limiting block 311 does not protrude from the outer surface of the housing 100, and the outer contour of the limiting block 311 matches the outer contour of the housing 100, forming a smooth structure.

[0044] In this embodiment, the locking part 300 further includes an elastic element 320 sleeved on the outer periphery of the sliding pin 310. The two ends of the elastic element 320 abut against the limiting block 311 and the upper inner wall of the sliding channel 110, respectively. In the locked state, the sliding pin 310 slides, causing the buckle 200 to disengage from the housing 100, and the notch 230 protrudes, allowing the buckle 200 to switch from the locked state to the unlocked state. The elastic element 320 has a tendency to switch the buckle 200 back to the locked state. With the above structure, when the user applies a downward force to the housing 100, the sliding pin 310 slides upward relative to the sliding channel 110. At this time, the elastic element 320 is compressed between the limiting block 311 and the upper inner wall of the sliding channel 110, storing elastic potential energy. The upward movement of the sliding pin 310, through its connection with the first end 210 of the retaining ring 200, causes the retaining ring 200 to disengage from the housing 100, completing the switch from the locked state to the unlocked state. When the user releases the applied force, the compressed elastic element 320 releases its stored elastic potential energy, pushing the limiting block 311 downward, thereby causing the sliding pin 310 to slide downward along the sliding channel 110 and automatically return to its initial position. Simultaneously, the retaining ring 200 also resets under the action of the sliding pin 310, re-entering the housing 100 to form an insertion fit, returning to the locked state.

[0045] In other embodiments, the limiting block 311 should be configured to be perpendicular to the axis of the sliding channel 110, and the limiting block 311 should be detachably connected to the outer surface of the housing 100. When the user needs to unlock the key fob, the limiting block 311 is separated from the housing 100, and the direction of the limiting block 311 and the sliding channel 110 is adjusted to be consistent, so that the limiting block 311 can slide in the sliding channel 110. At this time, the user applies a force to the housing 100, causing the sliding pin 310 to slide upward relative to the sliding channel 110, thereby adjusting the key fob to the unlocked state. Alternatively, the sliding pin 310 is threaded into the sliding channel 110.

[0046] In this embodiment, the housing 100 is provided with a first retaining ring groove 120 communicating with the external environment. The first end 210 is movably inserted into the first retaining ring groove 120. The sliding pin 310 slides in the first retaining ring groove 120 and the sliding channel 110 to drive the first end 210 out of the first retaining ring groove 120. Through the above structure, the first retaining ring groove 120 and the sliding channel 110 together allow and guide the sliding pin 310 to slide inside. In the locked state, the first end 210 of the retaining ring 200 is inserted into the first retaining ring groove 120, and its sidewall provides effective restraint to prevent the retaining ring 200 from accidentally coming out. When unlocking is required, the user's force drives the sliding pin 310 to slide upward along a predetermined trajectory in the sliding channel 110. Since the sliding pin 310 is fixedly connected to the first end 210 of the retaining ring 200, the linear motion of the sliding pin 310 is directly converted into the displacement of the first end 210, so that it moves smoothly upward along the axial direction of the first retaining ring groove 120, thereby completely breaking free from the constraint of the first retaining ring groove 120.

[0047] In this embodiment, the housing 100 is further provided with a second buckle groove 130 communicating with the external environment. The second end 220 is movably inserted into the second buckle groove 130, and the first end 210 drives the second end 220 to disengage from the second buckle groove 130. Through the above structural arrangement, the first end 210 and the second end 220 of the buckle 200 are respectively inserted into the first buckle groove 120 and the second buckle groove 130, forming a stable double-point insertion structure. When the user operates the sliding pin 310 to slide upwards, the sliding pin 310 first drives the first end 210 connected to it to disengage from the first buckle groove 120. Since the buckle 200 is a single structure, the movement of the first end 210 will immediately produce a direct linkage effect, thereby driving the second end 220 at the other end to simultaneously and almost without delay disengage from the second buckle groove 130. It should be noted that the second end 220 is the open end of the keychain, allowing the user to hang and store items through the second end 220 when the keychain is unlocked. When the keychain is unlocked, such as... Figure 3 , Figure 4 and Figure 6As shown, since the sliding pin 310 is movably inserted into the sliding channel 110 and the first retaining ring groove 120, the sliding pin 310 can also rotate radially relative to the sliding channel 110, thereby driving the first end 210 to rotate, which in turn directly links the second end 220 to rotate. At this time, the user can hang and store items such as keys through the second end 220, which forms an opening with the housing 100. After the user hangs the items, he manually rotates the second end 220 to the position above the corresponding position of the second retaining ring groove 130. At this time, the first end 210 is also positioned above the first retaining ring groove 120. The elastic element 320 is driven by the elastic potential energy stored in the compression to move the first end 210 and the second end 220 into the first retaining ring groove 120 and the second retaining ring groove 130, thus completing the switch from the unlocked state to the locked state.

[0048] In this embodiment, the locking part 300 further includes a fixing pin 330, which connects the first end 210 and the top end of the sliding pin 310. Through the above structural arrangement, the fixing pin 330 constitutes a key hub connecting the sliding pin 310 and the first end 210 of the retaining ring 200. Figure 5 and Figure 6 As shown, the specific connection method is as follows: the fixed pin 330 can be inserted into the groove set at the top of the sliding pin 310 to form a connection part, and the connection part is then inserted into the slot at the top of the first end 210. The three are reliably connected and fixed by means of interference fitting and other methods, thereby forming a rigid or fixed linkage component.

[0049] In this embodiment, the housing 100 is further provided with a through hole 140, which connects the first retaining ring groove 120 and the sliding channel 110. Through the above structural arrangement, the through hole 140 establishes a crucial connection channel between the first retaining ring groove 120 and the sliding channel 110. This structural feature achieves the following core functions and beneficial effects: It provides precise motion guidance: the through hole 140 is not only a simple connecting hole, but also guides and limits the movement of the sliding pin 310, working together with the sliding channel 110 and the first retaining ring groove 120 to ensure that the entire locking part 300 moves smoothly along a predetermined trajectory; by setting this single feature of the through hole 140, the mutual connection between the sliding channel 110 and the first retaining ring groove 120 is achieved; the existence of the through hole 140 provides a space for the sliding pin 310 and the first end 210 fixed thereto (the rotation of the first end 210 will drive the rotation of the entire retaining ring 200) to rotate slightly radially along the axis of the sliding pin 310. This is the premise for realizing the function of "rotating the buckle 200 in the unlocked state to form an opening for hanging items", which greatly enhances the practicality and convenience of the keychain.

[0050] In this embodiment, the housing 100 is provided with a contact end 150, which allows the user to slide the housing 100. With this structure, the contact end 150 serves as the primary structure for the user to apply force. The user slides the contact end 150, causing the housing 100 to move downwards, thus causing the sliding pin 310 to move upwards relative to the sliding channel 110. Specifically, the contact end 150 can be a specific area on the outer surface of the housing 100, and can be provided with ergonomically contoured protrusions, depressions, or anti-slip textures (such as knurling, stripes, or dotted protrusions), or can be made of a different material than other parts of the housing 100 (such as soft rubber coating) to provide a more comfortable feel and greater friction. Optionally, the upper end of the housing 100 can also be provided with a pressing end. In this case, the pressing end is located between the first retaining ring groove 120 and the second retaining ring groove 130. The user presses the pressing end, causing the housing 100 to move downwards, thus causing the sliding pin 310 to move upwards relative to the sliding channel 110.

[0051] In this embodiment, the buckle 200 is a ring structure with the notch 230. Through this structure, the ring-like buckle 200, as a rigid, integrally formed component, allows the user to hang items from the second end 220 due to the ring shape of the upper notch 230. In the unlocked state, the user can hang items through the notch 230, passing the item's hole through the second end 220 for easy hanging. In the locked state, when hanging items, under natural gravity, the items are attached to the bottom of the U-shaped buckle 200.

[0052] The above description provides one or more embodiments in conjunction with specific content, and does not imply that the specific implementation of this utility model is limited to these descriptions. Any methods or structures that are similar to or identical to those of this utility model, or any technical deductions or substitutions made based on the concept of this utility model, should be considered within the protection scope of this utility model.

Claims

1. A keychain, characterized in that, include: A housing (100) defining a sliding channel (110); A buckle (200) is provided, wherein a first end (210) and a second end (220) of the buckle (200) are movably inserted into the housing (100), and a notch (230) is provided between the first end (210) and the second end (220); A locking part (300) is provided, with the first end (210) connected to the locking part (300). At least a portion of the locking part (300) is movably inserted into the sliding channel (110). The locking part (300) drives the first end (210) and the second end (220) to disengage from the housing (100), so that the buckle (200) switches from the locked state to the unlocked state.

2. The keychain according to claim 1, characterized in that, The locking part (300) includes a sliding pin (310), at least a portion of which is movably inserted into the sliding channel (110). The sliding pin (310) slides within the sliding channel (110) to drive the buckle (200) away from the housing (100), allowing the notch (230) to protrude, and the buckle (200) switches from a locked state to an unlocked state.

3. The keychain according to claim 2, characterized in that, The sliding pin (310) is provided with a limiting block (311), which limits the sliding range of the sliding pin (310).

4. The keychain according to claim 3, characterized in that, The locking part (300) also includes an elastic element (320) sleeved on the outer periphery of the sliding pin (310). The two ends of the elastic element (320) abut against the upper inner wall of the limiting block (311) and the sliding channel (110), respectively. In the locked state, the sliding pin (310) is slid, causing the buckle (200) to disengage from the housing (100), and the notch (230) is exposed, so that the buckle (200) switches from the locked state to the unlocked state. The elastic element (320) has a tendency to switch the buckle (200) to the locked state.

5. The keychain according to claim 2, characterized in that, The housing (100) is provided with a first retaining groove (120) communicating with the external environment. The first end (210) is movably inserted into the first retaining groove (120). The sliding pin (310) slides in the first retaining groove (120) and the sliding channel (110) to drive the first end (210) to disengage from or be inserted into the first retaining groove (120).

6. The keychain according to claim 5, characterized in that, The housing (100) is also provided with a second retaining groove (130) that communicates with the external environment. The second end (220) is movably inserted into the second retaining groove (130). The first end (210) drives the second end (220) to disengage from or insert into the second retaining groove (130).

7. The keychain according to claim 2, characterized in that, The locking part (300) further includes a fixing pin (330), which is connected to the top end of the first end (210) and the top end of the sliding pin (310).

8. The keychain according to claim 5, characterized in that, The housing (100) is also provided with a through hole (140), which is connected to the first retaining ring groove (120) and the sliding channel (110).

9. The keychain according to claim 1, characterized in that, The housing (100) is provided with a contact end (150), which allows the user to slide the housing (100).

10. The keychain according to claim 1, characterized in that, The buckle (200) is a circular structure with the notch (230).

Images