Anti-falling key chain
By designing an anti-loss keychain and using a dial and resistance components to restrict the dial's rotation, the problem of psychiatric keys being easily lost and stolen has been solved, achieving secure key management and convenient use.
Patent Information
- Application Number
- CN202520974985.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-16
- Publication Date
- 2026-03-20
- Estimated Expiration
- 2035-05-16
AI Technical Summary
The existing keys to psychiatric wards are prone to accidental loss or being snatched by patients during routine management, making it difficult to guarantee security.
A key ring designed to prevent loss includes a connecting buckle, a connecting cord, and a key ring. The rotation of the dial is restricted by a dial and a resistance component to prevent accidental loss and snatching. It is made of stainless steel to withstand disinfection, and the connecting cord is an elastic cord to adjust the distance.
Effectively prevents keychains from accidentally falling off or being snatched by patients, ensuring the safe use of keys, facilitating nurses' operation, and suitable for key management in psychiatric wards.
Smart Images

Figure CN224007914U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of keychain technology, specifically relating to an anti-loss keychain. Background Technology
[0002] In the daily management of psychiatric wards, keys serve as crucial access control tools for key areas such as wards and treatment rooms, making their security paramount. Due to the unique nature of their conditions, some mental illness patients may exhibit impulsive, violent, or escape-prone behaviors. If a key is seized, the patient could use it to escape supervision, potentially leading to a series of dangerous incidents such as harming others, self-harm, suicide, or disrupting hospital order. This not only threatens the patient's own safety but also seriously endangers the lives and property of medical staff, other patients, and those in the surrounding area. Furthermore, psychiatric wards typically store various medications, medical equipment, and patients' personal information. Loss of control over keys could result in the damage or loss of these items, disrupting normal medical operations and even triggering medical disputes. Therefore, ensuring the security of psychiatric ward keys is a critical link in maintaining normal medical order and ensuring the safety of patients and medical staff. Utility Model Content
[0003] (1) Technical problems to be solved
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an anti-loss keychain. This keychain is designed to solve the problem that the keys in the psychiatric ward are easily accidentally dropped and snatched by mental patients in the daily management of the psychiatric ward, making it difficult to ensure the safety of the keys.
[0005] (2) Technical solution
[0006] To solve the above-mentioned technical problems, this utility model provides an anti-loss keychain, which includes a connecting buckle, a connecting rope, and a key ring. One end of the connecting rope is fixedly connected to the connecting buckle, and the other end of the connecting rope is fixedly connected to the key ring. The connecting buckle includes a buckle body and an elastic buckle rotatably mounted on the buckle body. A buckle cavity is formed between the buckle body and the elastic buckle. A dial wheel is rotatably mounted inside the bottom end of the buckle body. A limiting groove corresponding to the bottom end of the elastic buckle is opened on the outer surface of the dial wheel. A display block is provided on the front of the dial wheel. A through hole corresponding to the display block is opened on the front of the buckle body. The outer surface of the dial wheel is located outside the buckle body.
[0007] Preferably, a cavity is provided inside the bottom end of the buckle body, and a rotating shaft is fixedly connected to both the front and rear sides of the dial, with the rotating shaft rotatably connected to the inner wall of the cavity.
[0008] Furthermore, elongated holes are provided on the inner walls of both sides of the cavity, and the dial is located inside the elongated holes. Anti-slip textures are provided on the outer surface of the dial.
[0009] Furthermore, the front of the buckle body has a stepped groove that communicates with the cavity. A cover plate is fixedly connected to the inside of the stepped groove by screws, and a resistance component is provided on the back of the cover plate.
[0010] Furthermore, the resistance assembly includes a fixed box fixedly connected to the back of the cover plate. A movable block is slidably connected inside the fixed box. A spring is fixedly connected between one end of the movable block and the inner wall of the fixed box. A limit stick is fixedly connected to the other end of the movable block. A boss is fixedly connected to the front of the dial. Multiple arc-shaped shallow grooves are formed on the outer surface of the boss. The limit stick passes through the outside of the fixed box and is located in the arc-shaped shallow grooves. The limit stick is slidably connected to the fixed box.
[0011] Furthermore, the connecting buckle is used to fix it to the nurse's uniform, and the lower surface of the buckle body is fixedly connected to the mounting ring. The connecting buckle and the mounting ring are made of stainless steel.
[0012] Furthermore, the connecting rope is fixedly connected to the mounting ring, and the connecting rope is an elastic rope.
[0013] (3) Beneficial effects
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] 1. In this utility model, by rotating the dial wheel and the boss, the boss can squeeze the limiting ball rod through the arc-shaped shallow groove during the rotation. At this time, the limiting ball rod drives the movable block to move in the fixed box and compress the spring. Thus, by setting the resistance component, the dial wheel can be prevented from rotating randomly. When using it, an external force is required to shake the dial wheel, making it safer to use.
[0016] 2. This utility model features a dial on the keychain, with a limiting groove on the dial to limit the rotation of the elastic buckle. When a normal user rotates the dial to the through hole, the limiting groove is located at the bottom of the elastic buckle. Then, pressing the elastic buckle rotates it into the limiting groove, allowing for quick keychain removal. If a mentally ill patient tries to snatch it, the dial can block the elastic buckle even if it is pressed, preventing accidental detachment and preventing the mentally ill patient from taking it. Furthermore, nurses can rotate the dial with one hand, further enhancing the safety of the psychiatric key. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0018] Figure 2 This is a schematic diagram of the connecting buckle structure of this utility model.
[0019] Figure 3 This is a front view cross-sectional structural diagram of the connecting buckle of this utility model.
[0020] Figure 4 This is a right-side cross-sectional view of the connecting buckle of this utility model.
[0021] Figure 5 This is the utility model Figure 4 A magnified structural diagram of point A in the middle.
[0022] Figure 6 This is a schematic diagram of the cover plate of this utility model.
[0023] The markings in the attached diagram are as follows: 1. Connecting buckle; 2. Connecting rope; 3. Key ring; 4. Buckle body; 5. Elastic buckle; 6. Buckle cavity; 7. Dial wheel; 8. Limiting groove; 9. Display block; 10. Through hole; 11. Mounting ring; 401. Cavity; 402. Elongated hole; 403. Stepped groove; 404. Screw; 405. Cover plate; 406. Resistance component; 4061. Fixing box; 4062. Movable block; 4063. Spring; 4064. Limiting ball rod; 701. Rotating shaft; 702. Boss; 703. Arc-shaped shallow groove. Detailed Implementation
[0024] This specific embodiment is an anti-loss keychain, suitable for psychiatric wards, and its structural diagram is shown below. Figures 1-6 As shown, the keychain includes a connecting buckle 1, a connecting rope 2, and a key ring 3. A key can be installed on the key ring 3. One end of the connecting rope 2 is fixedly connected to the connecting buckle 1, and the other end of the connecting rope 2 is fixedly connected to the key ring 3. The connecting rope 2 can be tied in a knot or other secure methods. The connecting buckle 1 is fixed to the nurse's uniform. The connecting buckle 1 includes a buckle body 4 and an elastic buckle 5 rotatably mounted on the buckle body 4. A buckle cavity 6 is formed between the buckle body 4 and the elastic buckle 5. The elastic buckle 5 can be rotated and pressed to make the buckle cavity 6 communicate with the outside. At the same time, a torsion spring is installed for reset. A dial wheel 7 is rotatably mounted inside the bottom end of the buckle body 4. The outer surface of the dial wheel 7 has a limiting groove 8 corresponding to the bottom end of the elastic buckle 5. After the elastic buckle 5 is reset, the bottom end extends to the surface of the dial wheel 7. A display block 9 is provided on the front of the dial wheel 7. A through hole 10 corresponding to the display block 9 is provided on the front of the buckle body 4. The outer surface of the dial wheel 7 is located outside the buckle body 4. The position of the display block 9 can be easily observed through the through hole 10. The display block 9 can be coated with a bright red color for easy observation.
[0025] like Figure 2 and Figure 3 As shown: In this embodiment, a cavity 401 is provided inside the bottom end of the buckle body 4, and a rotating shaft 701 is fixedly connected to both the front and rear sides of the dial 7. The rotating shaft 701 is rotatably connected to the inner wall of the cavity 401; in this way, the dial 7 can rotate freely around the rotating shaft 701 inside the cavity 401.
[0026] like Figure 2 and Figure 3As shown: In this embodiment, elongated holes 402 are provided on the inner walls of both the left and right sides of the cavity 401. The dial 7 is located inside the elongated holes 402, and anti-slip textures are provided on the outer surface of the dial 7. The anti-slip textures on the outer surface of the dial 7 can increase the friction between the operator's hand and the dial 7, and prevent slippage.
[0027] like Figure 4 and Figure 5 As shown: In this embodiment, the front of the buckle body 4 is provided with a stepped groove 403 that communicates with the cavity 401. The inside of the stepped groove 403 is fixedly connected to the cover plate 405 by screws 404. The back of the cover plate 405 is provided with a resistance component 406. This facilitates the installation of the dial 7 inside the cavity 401. At the same time, the resistance component 406 appropriately limits the rotation of the dial 7 to prevent the dial 7 from rotating randomly. When in use, an external force is required to rotate the dial 7.
[0028] like Figure 4 , Figure 5 and Figure 6 As shown: In this embodiment, the resistance component 406 includes a fixed box 4061 fixedly connected to the back of the cover plate 405. A movable block 4062 is slidably connected inside the fixed box 4061. A spring 4063 is fixedly connected between one end of the movable block 4062 and the inner wall of the fixed box 4061. A limit stick 4064 is fixedly connected to the other end of the movable block 4062. A boss 702 is fixedly connected to the front of the dial 7. Multiple arc-shaped shallow grooves 703 are formed on the outer surface of the boss 702, limiting… The positioning stick 4064 passes through the outside of the fixed box 4061 and is located in the arc-shaped shallow groove 703. The positioning stick 4064 is slidably connected to the fixed box 4061. By rotating the dial 7 and the boss 702, the boss 702 can squeeze the positioning stick 4064 through the arc-shaped shallow groove 703 during the rotation. At this time, the positioning stick 4064 drives the movable block 4062 to move in the fixed box 4061 and compress the spring 4063, thereby restricting the free rotation of the dial 7 through the resistance component 406.
[0029] like Figure 1 and Figure 2 As shown: In this embodiment, the connecting buckle 1 is used to fix it to the nurse's uniform, and the lower surface of the buckle body 4 is fixedly connected to the mounting ring 11. The connecting buckle 1 and the mounting ring 11 are made of stainless steel. In this way, the keychain can withstand alcohol wiping and disinfection, and can be disinfected after use to ensure hygiene.
[0030] In this embodiment, the connecting rope 2 is fixedly connected to the mounting ring 11, and the connecting rope 2 is an elastic rope; the distance between the connecting buckle 1 and the key ring 3 can be adjusted by the elastic rope, making it more convenient to use.
[0031] Working principle: During use, the dial 7 and the boss 702 rotate. During the rotation, the boss 702 can press the limiting rod 4064 through the arc-shaped shallow groove 703. At this time, the limiting rod 4064 drives the movable block 4062 to move within the fixed box 4061 and compress the spring 4063, thereby restricting the free rotation of the dial 7 through the resistance component 406 until the display block 9 on the front of the dial 7 moves to the through hole 10. At this time, the limiting groove 8 is located at the bottom of the elastic buckle 5. Then, press the elastic buckle 5 to rotate it into the limiting groove. Next, fix the connecting buckle 1 to the nurse's uniform, then loosen the elastic buckle 5 to reset it. Then rotate the dial 7 to move the limiting groove 8 away from the bottom of the elastic buckle 5. In actual use, if the elastic buckle 5 is accidentally pressed, it can be blocked by the dial 7 to prevent accidental detachment. In addition, mental patients are mentally abnormal and have difficulty rotating the limiting groove 8 on the dial 7 to the bottom of the elastic buckle 5, which can also prevent mental patients from snatching it. At the same time, the nurse can rotate the dial 7 with one hand to quickly pick up and put away the keychain, which is very convenient to use.
[0032] All technical features in this embodiment can be freely combined according to actual needs.
[0033] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.
Claims
1. A keychain designed to prevent loss, comprising a connecting buckle (1), a connecting cord (2), and a key ring (3), characterized in that: One end of the connecting rope (2) is fixedly connected to the connecting buckle (1), and the other end of the connecting rope (2) is fixedly connected to the key ring (3). The connecting buckle (1) includes a buckle body (4) and an elastic buckle (5) rotatably mounted on the buckle body (4). A buckle cavity (6) is formed between the buckle body (4) and the elastic buckle (5). A dial wheel (7) is rotatably mounted inside the bottom end of the buckle body (4). A limiting groove (8) corresponding to the bottom end of the elastic buckle (5) is opened on the outer surface of the dial wheel (7). A display block (9) is provided on the front of the dial wheel (7). A through hole (10) corresponding to the display block (9) is opened on the front of the buckle body (4). The outer surface of the dial wheel (7) is located outside the buckle body (4).
2. The anti-loss keychain according to claim 1, characterized in that, The bottom end of the buckle (4) has a cavity (401) inside. The front and rear sides of the dial (7) are fixedly connected with rotating shafts (701), and the rotating shafts (701) are rotatably connected to the inner wall of the cavity (401).
3. The anti-loss keychain according to claim 2, characterized in that, The cavity (401) has elongated holes (402) on both the left and right inner walls. The dial wheel (7) is located inside the elongated holes (402), and the outer surface of the dial wheel (7) has anti-slip texture.
4. The anti-loss keychain according to claim 3, characterized in that, The front of the buckle (4) is provided with a stepped groove (403) that communicates with the cavity (401). The inside of the stepped groove (403) is fixedly connected to a cover plate (405) by screws (404). A resistance component (406) is provided on the back of the cover plate (405).
5. The anti-loss keychain according to claim 4, characterized in that, The resistance assembly (406) includes a fixed box (4061) fixedly connected to the back of the cover plate (405). A movable block (4062) is slidably connected inside the fixed box (4061). A spring (4063) is fixedly connected between one end of the movable block (4062) and the inner wall of the fixed box (4061). A limiting rod (4064) is fixedly connected to the other end of the movable block (4062). A boss (702) is fixedly connected to the front of the dial (7). A plurality of arc-shaped shallow grooves (703) are opened on the outer surface of the boss (702). The limiting rod (4064) penetrates the outside of the fixed box (4061) and is located in the arc-shaped shallow groove (703). The limiting rod (4064) is slidably connected to the fixed box (4061).
6. The anti-loss keychain according to claim 5, characterized in that, The connecting buckle (1) is used to fix it to the nurse's uniform. The lower surface of the buckle body (4) is fixedly connected to the mounting ring (11). The connecting buckle (1) and the mounting ring (11) are made of stainless steel.
7. The anti-loss keychain according to claim 6, characterized in that, The connecting rope (2) is fixedly connected to the mounting ring (11), and the connecting rope (2) is an elastic rope.