Child pulling rope magnetic lock

By using a magnetic lock design and a limiting structure, the problems of cumbersome operation and wear of child leash locking devices are solved, achieving a convenient, stable, and safe locking effect while reducing manufacturing costs.

CN223577728UActive Publication Date: 2025-11-21JIANGRUN CULTURE MEDIA (ZHANGJIAGANG) CO LTD
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Patent Information

Application Number
CN202520144008.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-21
Publication Date
2025-11-21
Estimated Expiration
2035-01-21

AI Technical Summary

Technical Problem

Existing child leash locking devices suffer from cumbersome operation, severe wear and tear, and poor stability, affecting ease of use and safety.

Method used

It adopts a magnetic lock design, which locks and unlocks by using the magnetic bead on the key and the magnetic bead on the latch assembly. Combined with the limit structure and sliding groove design, it ensures the stability and convenience of the latch.

Benefits of technology

It simplifies the locking operation, improves locking stability, reduces wear, avoids jamming, enhances safety and durability, and reduces manufacturing costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a child pulling rope magnetic lock which comprises a lock catch top cover, a lock catch bottom cover, a key and a lock catch assembly. The lock catch assembly and the hook are locked and unlocked through the magnetic beans. During unlocking, after a key is inserted, the magnetic beans attract each other to drive the lock catch assembly to be separated from the hook; during locking, after the key is taken out, the lock catch assembly and the hook are locked again under the action of the spring. The lock is easy and convenient to operate and stable in locking, the abrasion problem of a traditional mechanical lock is avoided, safety, durability and use convenience are improved, and the lock is widely suitable for safety devices such as child pulling ropes.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a child traction rope lock, more specifically to a child traction rope magnetic lock. BACKGROUND

[0002] With the increasing concern of society for children's safety issues, child traction ropes have become a safety device used by many parents in daily life. Child traction ropes are usually used to ensure the safety of children in public places, avoiding getting lost or accidents. In order to improve the convenience and safety of use, modern child traction ropes are mostly equipped with traction ropes with lock devices, aiming to effectively fix children and prevent sudden detachment. However, how to design a lock device that is simple to operate, safe and reliable, and durable, has become an important development direction for child traction ropes.

[0003] Most of the child traction rope lock devices on the market still use traditional mechanical lock structures. These locks usually rely on buckles, gears or spiral structures for locking, and these mechanical parts are prone to wear and tear during use, causing the lock to loosen or fail to lock normally. Especially in the case of frequent operation, the opening and closing of the lock may become difficult, causing jamming and increasing the time and difficulty of unlocking. Traditional mechanical locks often require tedious manual operation, such as rotation or pressing, which not only increases the user's operation burden, but also may affect the response speed in emergency situations, causing unnecessary safety hazards.

[0004] In addition, traditional mechanical locks are usually made of metal or plastic, which are easily affected by external environment during long-term use, such as wear and tear, corrosion, etc., resulting in a decrease in the reliability and durability of the lock system, and even the lock may not work properly due to long-term friction wear. Therefore, the existing technology has obvious deficiencies in the stability of the structure, the convenience of operation and the durability of the product.

[0005] Therefore, there is an urgent need for a new type of child traction rope magnetic lock that can effectively solve the problems existing in the prior art and provide a more safe, convenient and durable solution. SUMMARY

[0006] In order to solve the above problems, the utility model provides a child traction rope magnetic lock, which is designed by cooperating with the magnetic beans, and combines the structure of the lock top cover and the lock bottom cover, so that the locking and unlocking can be easily realized, and the stability of the lock assembly can be ensured.

[0007] To achieve the above purpose, the utility model provides the following technical scheme, mainly including:

[0008] The child traction rope magnetic lock is composed of a lock top cover, a lock bottom cover, two lock assemblies and a key, the lock assemblies are installed inside the lock top cover and are used for mutual locking with the lock bottom cover, the key is provided with a first magnetic bean, and the lock assembly is provided with a second magnetic bean, and the unlocking and locking between the lock top cover and the lock bottom cover are realized by the key being adsorbed to and separated from the lock assembly.

[0009] One end of the lock top cover is provided with a first rope buckle, an insertion opening is formed in the upper end of the lock top cover and close to the first rope buckle and is used for inserting the key, a limiting plate is installed on the lower end of the lock top cover through buckling, one first limiting hole, two second limiting holes and two limiting grooves are formed in the limiting plate respectively, the two second limiting holes correspond to the two lock assemblies respectively, two first sliding grooves are formed in the inside of the lock top cover respectively, the first sliding grooves are in sliding connection with the lock assemblies, and a limiting strip is arranged in the center of the first sliding groove and is used for limiting the moving distance of the lock assembly.

[0010] The end of the lock bottom cover away from the lock top cover is provided with a second rope buckle, the second rope buckle is mirror-imaged with the first rope buckle, one limiting block, two hooks and two limiting columns are arranged on the lock bottom cover respectively and correspond to one first limiting hole, two second limiting holes and two limiting grooves formed in the limiting plate respectively, and the lock bottom cover is locked with the lock assemblies of the lock top cover through the hooks.

[0011] A second sliding groove is formed in the center of the lock assembly, the second sliding groove is in sliding connection with the limiting strip, a spring is arranged between the second sliding groove and the limiting strip, the spring force is smaller than the magnetic force between the magnetic beans, a second magnetic bean is arranged at one end of the lock assembly, and an inclined table is arranged at the other end of the lock assembly, and the inclined table is locked with the hook.

[0012] Compared with the prior art, the technical scheme has the following beneficial effects:

[0013] (1) The operation convenience is improved: the magnetic lock is adopted in the utility model, the first magnetic bean on the key and the second magnetic bean on the lock assembly are used for realizing the locking and unlocking, the operation process of the lock is greatly simplified, the user only needs to insert the key, the locking can be easily completed by the magnetic adsorption, the unlocking can be realized by releasing the magnetic force, the operation is simple and fast, and the manual operation is reduced.

[0014] (2) The locking stability is enhanced: the lock top cover and the lock bottom cover can be firmly locked through the adsorption between the magnetic beans, the loosening or unlocking problem caused by external force interference is prevented, the stability of the magnetic force makes the lock have high locking effect in the use process, and the safety hidden danger caused by the loosening or unlocking of the lock is prevented when the child traction rope is used.

[0015] (3) Avoid the wear and tear problem of traditional mechanical lock: Unlike traditional mechanical lock structure, the magnetic lock assembly of the utility model reduces frictional contact, so the lock component is not easy to wear and tear, prolonging the service life. At the same time, the opening and closing of the lock do not depend on the traditional gear or buckle mechanism, reducing the risk of operation difficulty or lock failure caused by wear and tear.

[0016] (4) Reduce the difficulty of unlocking: due to the design of magnetic beans and sliding groove cooperation, the lock assembly and the first sliding groove inside the lock cover top can slide smoothly, ensuring that there is no jamming phenomenon when unlocking. The adsorption force of the magnetic beans is strong enough to ensure that the locked state is not easily unlocked accidentally, and at the same time, when unlocking is needed, smooth unlocking can be achieved by releasing the magnetic force with the key.

[0017] (5) Enhance the stability and safety of the lock assembly: through the mutual correspondence of multiple magnetic beans for unlocking, two positioning points for unlocking are set, and only when all the positioning points correspond, the lock assembly can be completely unlocked; at the same time, the second sliding groove in the lock assembly cooperates with the limiting strip, effectively limiting the movement range of the lock assembly, avoiding unnecessary displacement caused by external force. This structure makes the lock assembly stable during locking and unlocking, thereby further improving the safety.

[0018] (6) Improve the reliability of the overall structure: through the cooperation design of multiple structural elements such as limiting plate, hook and limiting block, the lock system of the utility model has high assembly precision and structural reliability. Each component is designed with precise limiting and connection to ensure the stability and consistency of the lock system during use.

[0019] (7) Strong adaptability and wide application range: due to the simple structure of the utility model, it has strong adaptability and can be widely used in various children's traction ropes, harnesses, child safety devices with locks and other scenes, especially in environments that need to be frequently unlocked and locked, and is not prone to failure or failure.

[0020] (8) Reduce the manufacturing cost of complex structure: the design of the utility model is relatively simple, which adopts the structure of magnetic beans and sliding groove, avoiding complex mechanical parts and tedious mechanical processing process, compared with traditional mechanical lock, it has lower manufacturing cost and higher production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, obviously, the drawings in the following description are only the embodiments of the utility model, and for those skilled in the art, other drawings can be obtained without creative labor on the premise of providing the drawings.

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0023] Figure 2 This is an exploded view of the three-dimensional structure of this utility model.

[0024] Figure 3 This is a three-dimensional structural cross-sectional view of the bottom of the locking top cover of this utility model.

[0025] Figure 4 This is a schematic diagram of the internal structure of the locking top cover of this utility model.

[0026] Figure 5 This is an exploded view of the internal structure of the locking top cover of this utility model.

[0027] 1-Lock top cover, 101-First rope buckle, 102-Insert port, 103-Limiting plate, 104-First limiting hole, 105-Second limiting hole, 106-Limiting groove, 107-First sliding groove, 108-Limiting strip, 2-Lock bottom cover, 201-Second rope buckle, 202-Hook, 203-Limiting block, 204-Limiting post, 3-Key, 301-First magnetic bead, 4-Lock assembly, 401-Second magnetic bead, 402-Sloping platform, 403-Second sliding groove, 404-Spring. Detailed Implementation

[0028] 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.

[0029] Example

[0030] Magnetic lock on child leash, such as Figures 1 to 5 As shown, it includes a top cover 1, a bottom cover 2, two latch assemblies 4, and a key 3;

[0031] The locking assembly 4 is installed inside the locking top cover 1 and is used to lock with the locking bottom cover 2;

[0032] The key 3 is provided with a first magnetic bead 301, and the latch assembly 4 is provided with a second magnetic bead 401. The key 3 attracts and disengages from the latch assembly 4 to achieve the unlocking and locking of the latch top cover 1 and the latch bottom cover 2.

[0033] In order to further optimize the above scheme, the lock top cover 1 is provided with a first rope buckle 101 at one end, and a insertion port 102 is formed at the upper end of the lock top cover 1 close to the first rope buckle 101, which is used for inserting the key 3;

[0034] The lower end of the lock top cover 1 is provided with a limiting plate 103 through a buckle, and a first limiting hole 104, two second limiting holes 105 and two limiting grooves 106 are formed in the limiting plate 103 respectively;

[0035] The upper side of the inside of the lock top cover 1 is provided with two first sliding grooves 107 respectively, the first sliding grooves 107 are connected with the lock assembly 4 through sliding, and a limiting strip 108 is arranged at the center of the first sliding grooves 107, which is used for limiting the moving distance of the lock assembly 4.

[0036] In order to further optimize the above scheme, the second rope buckle 201 is arranged at the end of the lock bottom cover 2 away from the lock top cover 1, and the second rope buckle 201 is mirror image with the first rope buckle 101;

[0037] The lock bottom cover 2 is provided with a limiting block 203, two hooks 202 and two limiting columns 204 respectively, which are corresponding to the first limiting hole 104, the two second limiting holes 105 and the two limiting grooves 106 of the limiting plate 103 respectively, and the lock bottom cover 2 is locked with the lock assembly 4 of the lock top cover 1 through the hooks 202.

[0038] In order to further optimize the above scheme, the second sliding groove 403 is formed at the center of the lock assembly 4, the second sliding groove 403 is connected with the limiting strip 108 through sliding, and a spring 404 is arranged between the second sliding groove 403 and the limiting strip 108, the elastic force of the spring 404 is smaller than the magnetic force between the second magnetic bean 401 and the first magnetic bean 301.

[0039] The lock assembly 4 is provided with the second magnetic bean 401 at one end and the inclined table 402 at the other end, and the inclined table 402 is locked with the hook 202.

[0040] In order to further optimize the above scheme, the spring 404 is arranged between the second sliding groove 403 and the limiting strip 108, and the elastic force of the spring 404 is smaller than the magnetic force between the second magnetic bean 401 and the first magnetic bean 301.

[0041] In order to further optimize the above scheme, the insertion port 102 is convenient for inserting and pulling out the key 3, so as to realize the locking and unlocking functions.

[0042] In order to further optimize the above scheme, the limiting strip 108 limits the moving distance of the lock assembly 4, and ensures the stable position of the lock assembly 4 in the lock top cover 1.

[0043] In order to further optimize the above scheme, the first sliding groove 107 is connected with the lock catch assembly 4, so that the lock catch assembly 4 can be smoothly moved in the lock catch top cover 1.

[0044] Working principle:

[0045] The child traction rope magnetic lock of the utility model is composed of a lock catch top cover 1, a lock catch bottom cover 2, a key 3 and a lock catch assembly 4, and adopts a magnetic lock design principle. The working principle is as follows:

[0046] Locking and unlocking principle of the lock catch assembly:

[0047] The lock catch top cover 1 and the lock catch bottom cover 2 are connected with each other through the lock catch assembly 4. In the locked state, the hook 202 on the lock catch assembly 4 is locked with the buckle 103 in the lock catch top cover 1, so as to ensure that the lock catch device is stably locked.

[0048] Unlocking process: mutual adsorption between magnetic beans:

[0049] When the key 3 is inserted into the insertion port 102 on the lock catch top cover 1, the first magnetic bean 301 on the key 3 is adsorbed with the second magnetic bean 401 on the lock catch assembly 4. The magnetic force between the magnetic beans makes the lock catch assembly 4 slide along the first sliding groove 107, so as to drive the hook 202 to separate from the buckle 103 on the lock catch top cover 1. At this time, the lock catch assembly 4 and the hook 202 are successfully separated, and unlocking is realized.

[0050] Locking process: separation between spring action and magnetic beans:

[0051] After unlocking, when the key 3 is taken out of the insertion port 102, the magnetic adsorption between the magnetic beans 301 and 401 disappears. At the same time, under the elastic force of the spring 404, the lock catch assembly 4 is relocked with the hook 202. The spring 404 drives the lock catch assembly 4 to move along the second sliding groove 403 to the buckle 103 direction, and the hook 202 is reconnected with the buckle 103, so as to realize locking.

[0052] Limiting structure ensures stability:

[0053] In the locking and unlocking process, the limiting holes 104 and 105 and the limiting groove 106 on the limiting plate 103 cooperate with the limiting block 203 and the limiting column 204 on the lock catch bottom cover 2, so as to ensure that the lock catch assembly 4 always stably slides and avoids excessive movement, and to ensure the stability and durability of the lock catch device.

[0054] Safety and convenience:

[0055] The utility model discloses a magnetic lock's design, not only reduces the wear and tear problem of traditional mechanical lock, also simplifies the operation process, user only needs to insert key 3, can pass through magnetic force and unlock, and the operation is simple and convenient, convenient, when the key is taken out, spring restores the locking state automatically, avoids manual intervention, greatly promotes the security and stability of lock.

[0056] Through the above-mentioned design, the utility model discloses a child traction rope magnetic lock has simple operation, excellent security and durability, can effectively solve the defect of traditional mechanical lock, provides a kind of efficient, safe, reliable child traction rope locking solution.

[0057] Each embodiment in the present specification is described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same or similar parts between each embodiment can be referred to each other.For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the related parts can be referred to the method part.

[0058] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the utility model. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A child traction rope magnetic lock, comprising a lock top cover (1), a lock bottom cover (2), two lock assemblies (4) and a key (3), characterized in that: the lock assembly (4) is installed inside the lock top cover (1) and is used to lock and unlock with the lock bottom cover (2); the key (3) is provided with a first magnetic bean (301), and the lock assembly (4) is provided with a second magnetic bean (401), and the unlocking and locking between the lock top cover (1) and the lock bottom cover (2) are realized by the key (3) adsorbing and separating from the lock assembly (4). One end of the lock top cover (1) is provided with a first rope buckle (101), and an insertion port (102) is formed near the first rope buckle (101) at the upper end of the lock top cover (1) for inserting the key (3); a limiting plate (103) is installed at the lower end of the lock top cover (1) through buckling, and the limiting plate (103) is provided with one first limiting hole (104), two second limiting holes (105) and two limiting grooves (106) respectively; The inside of the lock top cover (1) is provided with two first sliding grooves (107) respectively, the first sliding grooves (107) are slidingly connected with the lock assemblies (4), and the first sliding grooves (107) are provided with a limiting strip (108) at the center for limiting the movement distance of the lock assemblies (4).

2. The child tether magnetic lock of claim 1, wherein: The end of the lock bottom cover (2) away from the lock top cover (1) is provided with a second rope buckle (201), and the second rope buckle (201) is mirror image with the first rope buckle (101); the lock bottom cover (2) is provided with one limiting block (203), two hooks (202) and two limiting columns (204) respectively, and they are one-to-one corresponding with one first limiting hole (104), two second limiting holes (105) and two limiting grooves (106) formed in the limiting plate (103) respectively, and the lock bottom cover (2) is locked and unlocked with the lock assembly (4) of the lock top cover (1) through the hooks (202).

4. The child traction rope magnetic lock according to claim 3, characterized in that: A second sliding groove (403) is formed at the center of the lock assembly (4), the second sliding groove (403) is slidingly connected with the limiting strip (108), a spring (404) is arranged between the second sliding groove (403) and the limiting strip (108), and the elastic force of the spring (404) is smaller than the magnetic force between the second magnetic bean (401) and the first magnetic bean (301); 3. The child harness magnetic leash of claim 2, wherein: One end of the lock assembly (4) is provided with a second magnetic bean (401), and the other end is provided with an inclined table (402), and the inclined table (402) is locked and unlocked with the hook (202).

5. The child traction rope magnetic lock according to claim 4, characterized in that: A spring (404) is arranged between the second sliding groove (403) and the limiting strip (108), and the elastic force of the spring (404) is smaller than the magnetic force between the second magnetic bean (401) and the first magnetic bean (301). ​ ​ ​ ​ 6. The child harness magnetic leash of claim 2, wherein: The insertion opening (102) facilitates the insertion and extraction of the key (3), thereby realizing the locking and unlocking functions.

7. The child tether magnetic force lock of claim 2, wherein: The limiting strip (108) limits the movement distance of the lock catch assembly (4), ensuring the stable position of the lock catch assembly (4) in the lock catch top cover (1).

8. The child tether magnetic force lock of claim 2, wherein: The first sliding groove (107) is in sliding connection with the lock catch assembly (4), so that the lock catch assembly (4) can move smoothly in the lock catch top cover (1).