Magnetic type lock cylinder cover structure

The magnetic lock cylinder cover design solves the problems of inconvenient lock cylinder cover installation and dust and moisture prevention, enabling quick disassembly and sealing protection, and improving the service life and security of the lock.

CN224002506UActive Publication Date: 2026-03-17WENZHOU HAOGUAN LOCK IND TECH CO LTD
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Patent Information

Application Number
CN202520652118.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-08
Publication Date
2026-03-17
Estimated Expiration
2035-04-08

AI Technical Summary

Technical Problem

The existing lock cylinder cover structure is inconvenient to install, easily damages the lock, and cannot effectively prevent dust and moisture from entering, affecting its service life and security.

Method used

The lock cylinder cover adopts a magnetic suction structure, which uses the magnetic snap-fit ​​between the metal magnetic ring and the metal adsorption groove, combined with an automatic tensioning structure and an inclined prying groove design, to achieve quick disassembly and assembly of the lock cylinder cover and sealing protection.

Benefits of technology

It improves the ease of disassembly and assembly of the lock cylinder cover, prevents dust and moisture from entering, extends the service life of the lock, and enhances the user experience and security.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a magnetic attraction type lock cylinder cover structure, which relates to the technical field of locksets, and comprises a lockhole panel and a lock cylinder, the lock cylinder is arranged on the inner side and the outer side of the lockhole panel and is provided with a lock cylinder cover mounting groove, a lock cylinder cover is clamped in the lock cylinder cover mounting groove, one side of the lock cylinder cover is provided with a metal magnetic attraction ring, and the metal magnetic attraction ring is connected with the lock cylinder cover mounting groove. A sealing cover corresponding to the lock cylinder is arranged in the center of the lock cylinder cover, and the sealing cover is connected in the automatic tensioning structure in a sliding manner; a metal magnetic suction ring is in magnetic suction clamping connection with a metal adsorption groove, two prying grooves are obliquely and symmetrically arranged, a user key is conveniently clamped after being obliquely inserted and then disassembled, the disassembly and assembly efficiency and safety are improved, rapid assembly and disassembly of the lock cylinder cover are achieved, the convenience of maintenance operation is greatly improved, and the practicability of the lock cylinder cover is improved. Meanwhile, lock structure damage possibly caused by a traditional fixing mode is avoided; the sealing cover is tightly attached to the lock cylinder under the action of the automatic tensioning structure and blocks the rotating cover, and invasion of dust and moisture is effectively prevented.
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Description

Technical Field

[0001] This utility model relates to the field of lock technology, and in particular to a magnetic lock cylinder cover structure. Background Technology

[0002] Most lock cylinder covers on the market are directly attached to the outside of the lock cylinder by means of bolt fixing, welding or gluing. A major drawback of this method is that installation and disassembly are very inconvenient.

[0003] Especially during lock cylinder replacement or lubrication maintenance, this fixing method not only increases the difficulty of the operation but may also cause damage to the lock cylinder and its surrounding structure due to repeated disassembly, affecting the service life and security of the entire lock. In addition, in the existing lock cylinder cover structure design, a key passage groove is usually set on the rotating plate to guide the key and reduce the contact space between the lock cylinder and the outside. Although these groove designs are often relatively narrow, they still cannot effectively prevent external moisture and dust from entering. In humid or dusty environments, these contaminants may not only directly damage the internal components of the lock cylinder but also affect the function of the lubricating oil, leading to lock cylinder lubrication failure and difficulty in opening, increasing the inconvenience to users. This problem is more prominent, especially in rainy or dusty climates. Therefore, we propose a magnetic lock cylinder cover structure. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, change the existing lock cylinder cover structure and installation structure, provide convenient disassembly, avoid damage to the lock structure during disassembly, prevent dust and moisture from entering the lock cylinder, and improve the user experience and service life of the lock cylinder.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A magnetic lock cylinder cover structure includes a lock hole panel and a lock cylinder. The lock cylinder is mounted on the lock hole panel and has lock cylinder cover mounting grooves on its inner and outer sides. A lock cylinder cover is snapped into the lock cylinder cover mounting groove. A metal magnetic ring is provided on one side of the lock cylinder cover. A sealing cover is provided at the center of the lock cylinder cover corresponding to the lock cylinder. The sealing cover is slidably connected in an automatic tensioning structure.

[0007] The outer side of the lock cylinder cover is symmetrically provided with pry grooves;

[0008] The automatic tensioning structure includes guide frames, two sets of which are parallel to each other on both sides of the sealed cover. The guide frames extend to the inner wall of a metal magnetic ring on one side. Several springs are installed inside the guide frames corresponding to the lock cylinder cover end. The outer sides of the two guide frames are provided with snap-fit ​​covers.

[0009] Furthermore, the lock cylinder cover mounting groove has a metal adsorption groove inside corresponding to the metal magnetic ring, and a marking groove is provided on the metal adsorption groove. A marking block is provided on the inner side of the metal magnetic ring corresponding to the marking groove. The marking block is connected to the marking groove so that the lock cylinder cover and the metal adsorption groove are magnetically engaged.

[0010] Furthermore, a rotating groove is provided through the lock cylinder cover, and a rotating disc corresponding to the sealing cover and the lock cylinder is rotatably connected in the rotating groove.

[0011] Furthermore, the size of the pry groove is greater than 0.8mm, and two sets of pry grooves are arranged in an inclined manner with alternating inclination.

[0012] Furthermore, the sealing cover is circular with a size larger than the rotating groove, and has sliding blocks at both ends.

[0013] Furthermore, the inner side of the guide frame is provided with a guide groove along the length direction corresponding to the sliding block, and the sliding block is slidably connected in the guide groove.

[0014] Furthermore, the spring opens to allow the sealing cover to abut against the arc-shaped corner on the inner side of the guide frame at that end. Both ends of the spring abut against the brackets respectively. One bracket is fixed to the sealing cover, and the other bracket is fixed between the two guide frames at the other end.

[0015] Furthermore, one end of the snap-fit ​​cover is hinged to a guide frame, and the other end is snapped onto another guide frame. The inner side of the snap-fit ​​cover is provided with a number of dividers less than the number of springs, which are used to space adjacent springs.

[0016] Furthermore, the sealing cover is designed to be inclined from the spring side to the other side of the rotating disk end face.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. By magnetically engaging the metal magnetic ring and the metal adsorption groove, the two prying grooves are arranged symmetrically and at an angle, which not only facilitates the use of a key to insert at an angle and engage for disassembly, but also improves the efficiency and safety of disassembly and assembly. This enables the quick installation and disassembly of the lock cylinder cover, greatly improving the convenience of maintenance operations, while avoiding the damage to the lock structure that may be caused by traditional fixing methods.

[0019] 2. Under the action of the automatic tensioning structure, the sealing cover fits tightly against the lock cylinder and blocks the rotating cover, effectively preventing the intrusion of dust and moisture, protecting the internal components of the lock cylinder from damage, extending the service life of the lock, and ensuring the continuous effectiveness of the lubricating oil, reducing the problem of difficulty in opening.

[0020] Furthermore, through the cooperation of the guide frame, spring, and snap-on cover, the automatic tensioning, opening, and closing of the sealing cover is achieved, ensuring the sealing performance and normal use of the lock cylinder cover.

[0021] In summary, the magnetic lock cylinder cover structure of this utility model not only improves the ease of disassembly and assembly of the lock cylinder cover and the dustproof and moisture-proof performance of the lock, but also achieves stable fixing and sealing protection of the lock cylinder cover through the design of the pry groove and automatic tensioning structure, which significantly improves the user experience and service life of the lock. Attached Figure Description

[0022] Figure 1 A schematic diagram of the overall structure of a magnetic lock cylinder cover provided by this utility model;

[0023] Figure 2 A schematic diagram showing the overall structure of a magnetic lock cylinder cover provided by this utility model;

[0024] Figure 3 A schematic diagram of the inner part of a magnetic lock cylinder cover structure provided by this utility model;

[0025] Figure 4 A schematic diagram of the sealed cover planar structure of a magnetic lock cylinder cover provided by this utility model;

[0026] Figure 5 This is a schematic diagram of the inner side structure of the snap-fit ​​cover plate of a magnetic lock cylinder cover structure provided by this utility model.

[0027] Illustration: 1. Keyhole panel;

[0028] 2. Lock cylinder;

[0029] 3. Lock cylinder cover mounting groove; 31. Metal adsorption groove; 32. Marking groove;

[0030] 4. Lock cylinder cover; 41. Pry groove; 42. Rotating groove; 43. Rotating disc;

[0031] 5. Metal magnetic ring; 51. Marking block;

[0032] 6. Sealing cover; 61. Sliding block;

[0033] 7. Automatic tensioning structure; 71. Guide frame; 72. Spring; 73. Fastening cover plate; 731. Dividing frame; 74. Guide slide; 75. Rounded corner; 76. Bracket. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0035] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0036] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0038] like Figure 1-5 As shown, this embodiment provides a magnetic lock cylinder cover structure, which mainly includes a lock hole panel 1, a lock cylinder 2, a lock cylinder cover mounting groove 3, a lock cylinder cover 4, a metal magnetic ring 5, a sealing cover 6, and an automatic tensioning structure 7.

[0039] The lock cylinder 2 is installed on the lock hole panel 1. The inner and outer sides of the lock cylinder 2 are provided with lock cylinder cover mounting grooves 3. The lock cylinder cover 4 is snapped into the mounting groove. A metal magnetic ring 5 is provided on one side. The center position of the lock cylinder cover 4 is provided with a sealing cover 6 corresponding to the lock cylinder 2. This sealing cover 6 is slidably connected in the automatic tensioning structure 7. The outer side of the lock cylinder cover 4 is also symmetrically provided with pry grooves 41, which are convenient for disassembly using a key.

[0040] The automatic tensioning structure 7 includes guide frames 71, springs 72, and locking covers 73. There are two sets of guide frames 71, which are parallel to each other on both sides of the sealing cover 6 and extend to the inner wall of the metal magnetic ring 5. Several springs 72 are installed inside the guide frames 71 corresponding to the end faces of the lock cylinder cover 4. Locking covers 73 are provided on the outer sides of the two guide frames 71 to fix the guide frames 71 and springs 72.

[0041] Example 2:

[0042] Based on Example 1, Example 2 further refines the structure:

[0043] First, a metal adsorption groove 31 is opened inside the lock cylinder cover mounting groove 3 corresponding to the metal magnetic ring 5, and a marking groove 32 is opened on the metal adsorption groove 31. A marking block 51 is provided on the inner side of the metal magnetic ring 5. When the marking block 51 is aligned with the marking groove 32, the lock cylinder cover 4 and the metal adsorption groove 31 are magnetically engaged.

[0044] A rotating groove 42 is also provided through the lock cylinder cover 4. A rotating disk 43 corresponding to the sealing cover 6 and the lock cylinder 2 is rotatably connected in this rotating groove 42. The rotating disk 43 is rotatably connected in the rotating groove 42, which is a conventional design in the prior art. The size of the prying groove 41 is greater than 0.8mm, and it is arranged in two sets of staggered inclined angles, which makes it easy to pry and pull out by inserting a key.

[0045] The sealing cover 6 is circular, and its size is larger than the rotating groove 42. It is also provided with sliding blocks 61 at both ends. The inner side of the guide frame 71 is provided with a guide groove 74 along the length direction corresponding to the sliding block 61. The sliding block 61 is slidably connected in this guide groove 74. When the key is inserted and rotated, the spring 72 is tensioned. When it is completely pulled out, the spring 72 is completely reset. During this process, the sliding block 61 is slidably connected in the guide groove 74 to ensure that the sealing cover 6 moves stably inside the two guide frames 71.

[0046] When the spring 72 opens, the sealing cover 6 will abut against the arc corner 75 on the inner side of the guide frame 71. The two ends of the spring 72 abut against the bracket 76 respectively. One bracket 76 is fixed to the sealing cover 6, and the other bracket 76 is fixed between the two guide frames 71 at the other end, ensuring that there are force pads at both ends.

[0047] One end of the snap-fit ​​cover plate 73 is hinged to a guide frame 71, and the other end is snapped onto another guide frame 71. The snap-fit ​​structure prevents the spring 72 from flying out. At the same time, the spring 72 can be directly replaced if it is damaged later. The inner side of the snap-fit ​​cover plate 73 is also provided with a number of dividers 731 less than the number of springs 72, which are used to separate adjacent springs 72 so that the springs 72 do not affect each other.

[0048] Specifically, the end face of the sealing cover 6 corresponding to the rotating disk 43 is designed to be inclined from the side of the spring 72 to the other side. When the key passes through the rotating disk 43, it will come into contact with the sealing cover 6. Due to the inclined design of the end face of the sealing cover 6, the key will slide slightly to one side, which will apply a lateral force to the sealing cover 6, thereby causing the spring 72 to contract. At this time, the key is straightened and inserted into the lock cylinder 2.

[0049] Workflow: When using this magnetic lock cylinder cover structure, the lock cylinder cover 4 first achieves magnetic engagement with the metal adsorption groove 31 in the lock cylinder cover mounting groove 3 through the metal magnetic ring 5. When a key needs to be inserted, the key moves through the rotating disk 43 and abuts against the sealing cover 6. Due to the inclined design of the sealing cover 6, the key can easily slide and push open the sealing cover 6 (while compressing the spring 72). Then the key can be inserted into the lock cylinder 2 to perform the unlocking operation. When the lock cylinder cover 4 needs to be disassembled for maintenance, a tool can be used to easily pry the lock cylinder cover 4 out of the lock cylinder cover mounting groove 3 by prying the groove 41.

[0050] The above design not only improves the ease of disassembly and assembly of the lock cylinder cover 4, but also effectively prevents the intrusion of dust and moisture, thereby extending the service life of the lock and improving its security.

[0051] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A magnetic lock core cover structure, comprising a lock hole panel (1) and a lock core (2), the lock core (2) is installed on the lock hole panel (1), and a lock core cover mounting groove (3) is formed on the inner and outer sides of the lock core (2), and a lock core cover (4) is clamped in the lock core cover mounting groove (3), characterized in that: One side of the lock core cover (4) is provided with a metal magnetic ring (5), and the center of the lock core cover (4) is provided with a sealing cover (6) corresponding to the lock core (2), which is slidingly connected in the automatic tensioning structure (7); The outer side of the lock core cover (4) is symmetrically provided with a prying groove (41); The automatic tensioning structure (7) includes a guide frame (71), the guide frame (71) has two groups of parallel sides on both sides of the sealing cover (6), the guide frame (71) extends to the inner wall of the metal magnetic ring (5) on one side, and a plurality of springs (72) are installed in the guide frame (71) corresponding to the end of the lock core cover (4).

2. The magnetic lock core cover structure according to claim 1, characterized in that: The inside of the lock core cover mounting groove (3) is provided with a metal adsorption groove (31) corresponding to the metal magnetic ring (5), the metal adsorption groove (31) is provided with a mark groove (32), and the inside of the metal magnetic ring (5) is provided with a mark block (51) corresponding to the mark groove (32), the mark block (51) is connected to the mark groove (32), and the lock core cover (4) and the metal adsorption groove (31) are connected by magnetic attraction.

3. The magnetic lock core cover structure according to claim 1, characterized in that: The lock core cover (4) is provided with a rotating groove (42) penetrating through, and the rotating groove (42) is rotatably connected with a rotating disc (43) corresponding to the sealing cover (6) and the lock core (2).

4. The magnetic lock core cover structure according to claim 1, characterized in that: The size of the prying groove (41) is greater than 0.8mm, and the two groups of prying grooves (41) are arranged in an inclined manner.

5. The magnetic lock core cover structure according to claim 3, characterized in that: The sealing cover (6) is circular and has a size greater than the rotating groove (42), and two ends are provided with sliding blocks (61).

6. The magnetic lock core cover structure according to claim 5, characterized in that: The inside of the guide frame (71) is provided with a guide sliding groove (74) corresponding to the sliding block (61) along the length direction, and the sliding block (61) is slidingly connected in the guide sliding groove (74).

7. The magnetic lock core cover structure according to claim 1, characterized in that: The spring (72) is opened to make the sealing cover (6) abut on the arc corner (75) on the inside of the end of the guide frame (71), and the two ends of the spring (72) abut on the bracket (76), one of the brackets (76) is fixed with the sealing cover (6), and the other end of the bracket (76) is fixed between the other two guide frames (71).

8. The magnetic lock core cover structure according to claim 1, characterized in that: One end of the buckling cover plate (73) is hinged to one guide frame (71), and the other end is buckled and connected to the other guide frame (71), and the inside of the buckling cover plate (73) is provided with a number of partition frames (731) less than the number of springs (72), which are used to space the adjacent springs (72).

9. The magnetic lock core cover structure according to claim 1, characterized in that: The end face of the sealing cover (6) corresponding to the rotating disc (43) is designed to be inclined from the side of the spring (72) to the other side.