A padlock with replaceable lock cylinder and lock

By designing an adapter mechanism and a disassembly mechanism, the padlock cylinder can be easily replaced, solving the problem of the entire lock being scrapped after the cylinder is damaged, reducing maintenance costs and improving operational efficiency.

CN119531678BActive Publication Date: 2025-11-07ZHONGSHAN CITY JIXIN CORE LOCK CO LTD
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Patent Information

Application Number
CN202411972618.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-11-07
Estimated Expiration
2044-12-30

AI Technical Summary

Technical Problem

If the lock cylinder of an existing padlock is damaged, it cannot be replaced individually, resulting in the entire lock becoming unusable, increasing maintenance costs and making repairs inconvenient.

Method used

A padlock replacement cylinder and lock were designed. Through the cooperation of the adapter mechanism and the disassembly and assembly mechanism, the lock cylinder can be easily disassembled and assembled by means of threaded connection and bolt connection. It includes a bearing component, an insertion component, a connecting component, a fixing component, a take-up component and a locking component, so as to realize the individual replacement of the lock cylinder.

Benefits of technology

It reduces replacement and maintenance costs, is simple and convenient to operate, and the design of the adapter and disassembly mechanism allows the lock cylinder to be replaced separately when it is damaged, reducing the frequency of replacing the whole lock and improving maintenance efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a padlock core replacing and locking device, which comprises a lock body, an adapting mechanism and a dismounting mechanism. The padlock core replacing and locking device has the advantages that the padlock core can be replaced independently when the padlock is damaged, the cost of replacement and maintenance is reduced, and the padlock core is convenient to operate in actual use. The dismounting mechanism is slid in the adapting mechanism and is fixed and dismounted by screwing and unscrewing. The padlock core is directly pushed upward and screwed when being installed. The padlock core is directly slid downward and removed when being dismounted. The adapting mechanism can also be removed and is separately dismounted by bolt connection, which is convenient for the subsequent removal and replacement of the dismounting mechanism.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of locks, in particular to a padlock with replaceable lock cylinder and lock. BACKGROUND

[0002] Locks are devices that serve to close, including locks, keys and their accessories, mainly for the opening and closing of various door bodies and improving the security protection of the space inside. There are many types of locks, among which padlocks are one of them. Padlocks are locks that can be opened and closed by keys or other means, usually made of metal. The main feature of padlocks is that they can be hung on various objects such as doors, windows, equipment, etc. to achieve protection of these objects. There are many types of padlocks, and different types of padlocks can be selected according to different use scenarios and needs.

[0003] The lock cylinder of a padlock usually contains multiple obstacles (such as leaves or marbles). When the correct key is inserted, the obstacles will be pushed to the same height, allowing the lock cylinder to rotate and move the lock tongue, ultimately achieving unlocking. Specifically, when the key is inserted into the lock cylinder, the serrations or grooves on the key will align with the obstacles inside the lock cylinder, pushing the obstacles to move. When all obstacles are properly aligned, the lock cylinder can be rotated to open the lock.

[0004] The padlocks in the prior art cannot replace the lock cylinder. Since the lock body and lock cylinder of the padlock in the prior art are completely installed inside the integrally formed lock body, the lock cylinder cannot be replaced when it is damaged. Violent disassembly directly results in the padlock being scrapped and unable to be used. At the same time, when the lock cylinder is damaged, the entire padlock is replaced, thereby increasing maintenance costs and being not conducive to subsequent maintenance or maintenance operations on the lock cylinder. SUMMARY

[0005] The present application aims to provide a padlock with replaceable lock cylinder and lock, which has the advantage of being easy to replace the lock cylinder inside the padlock. The lock cylinder can be replaced directly after it is damaged, without the need to replace the entire padlock, thereby reducing costs. At the same time, the operation is simple and convenient during replacement, which is beneficial to the use of people, thereby solving the problems raised in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solution: a padlock with replaceable lock cylinder and lock, comprising a lock body, an adapter mechanism and a disassembly and assembly mechanism.

[0007] The inside of the lock body is provided with a switching mechanism for switching the lock, and the inside of the lock body is provided with an adapter mechanism for limiting the disassembly and assembly mechanism. The inside of the adapter mechanism is provided with a disassembly and assembly mechanism for replacing the lock cylinder.

[0008] The switching mechanism comprises a bearing assembly and an insertion assembly. The bearing assembly is arranged inside the lock body, and the insertion assembly is arranged inside the lock body.

[0009] The adapting mechanism comprises a connecting assembly arranged inside the lock body and a fixing assembly arranged on the top of the connecting assembly.

[0010] The dismounting mechanism comprises a taking and placing assembly arranged inside the adapting mechanism and a locking assembly arranged inside the lock body.

[0011] The lock cylinder can be fixed by tightening the locking assembly, and the lock cylinder can be removed by loosening the locking assembly, and the lock cylinder can be replaced by loosening and tightening the locking assembly.

[0012] Illustratively, the bearing assembly comprises blind holes respectively arranged at two ends of the top of the lock body and a spring arranged at the bottom of the inner cavity of one of the blind holes.

[0013] Illustratively, the fixing assembly comprises a lock beam slidingly connected to the inner side of one of the blind holes, and one end of the lock beam is located in the inner side of the spring and connected thereto.

[0014] Illustratively, an arc-shaped groove is arranged on the inner side wall of the lock beam, lock latches are arranged on both sides of the inner cavity of the lock body, the lock latches are located on the inner side of the lock beam and the arc-shaped groove, and the lock beam is arranged in a U shape.

[0015] Illustratively, the connecting assembly comprises a connecting sleeve screwed to the inner side wall of the lock body, and an adapting hole is arranged on the top of the connecting sleeve.

[0016] Illustratively, the fixing assembly comprises a first screw and a first mounting hole, the first mounting hole is arranged on the top of the connecting sleeve, and the first screw is threadedly connected to the inner side of the first mounting hole.

[0017] Illustratively, a second mounting hole is arranged on the bottom of the inner cavity of the other blind hole, and the first screw is connected to the connecting sleeve through the second mounting hole and the first mounting hole.

[0018] Illustratively, the taking and placing assembly comprises a lock cylinder body slidingly arranged in the inner side of the adapting hole, and a first connecting hole is arranged on one side of the lock cylinder body.

[0019] Illustratively, the locking assembly comprises a second connecting hole arranged on one side of the lock body, and a second screw is threadedly connected to the inner side of the first connecting hole and the second connecting hole.

[0020] A lock comprises the above-mentioned lock cylinder.

[0021] Compared with the prior art, the present application has the following beneficial effects:

[0022] The application realizes the advantage that the existing padlock can replace the lock cylinder alone when damaged through the cooperation of the adapting mechanism and the dismounting mechanism. The way of replacing the lock cylinder alone can not only reduce the cost of replacement and maintenance, but also facilitate the operation of people in actual use. The dismounting mechanism slides in the adapting mechanism and realizes the fixing and dismounting operation through the way of screwing and loosening. When installing, the lock cylinder is directly pushed upward and screwed, and when dismounting, the lock cylinder directly slides downward to complete the dismounting operation, so as to facilitate the replacement, maintenance and repair operation. The adapting mechanism can also be dismounted, and the bolted way can be used for separate dismounting, which facilitates the subsequent dismounting and replacement operation of the adapting and dismounting mechanism.

[0023] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the present application. The objects and other advantages of the present application can be realized and attained by the structure particularly pointed out in the description and the appended drawings. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a schematic view of the structure of the present application;

[0025] Figure 2 It is a schematic view of the internal structure of the lock body of the present application;

[0026] Figure 3 It is a schematic view of the lock tongue structure of the present application;

[0027] Figure 4 It is a schematic view of the first connecting hole structure of the present application;

[0028] Figure 5 It is a schematic view of the first bolt structure of the present application;

[0029] Figure 6 It is a schematic view of the bottom structure of the present application.

[0030] In the figure: 1, lock body; 2, switch mechanism; 21, spring; 22, lock beam; 23, lock tongue; 24, blind hole; 3, adapting mechanism; 31, connecting sleeve; 32, first bolt; 33, adapting hole; 4, dismounting mechanism; 41, lock cylinder body; 42, first connecting hole; 43, second bolt; 44, second connecting hole. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0032] This invention provides a padlock replacement cylinder and lock, including a lock body 1, an adapter mechanism 3 and a disassembly and assembly mechanism 4;

[0033] The lock body 1 is equipped with a switch mechanism 2 for opening and closing the lock, and the lock body 1 is equipped with an adapter mechanism 3 for limiting disassembly and assembly mechanism 4. The adapter mechanism 3 is equipped with a disassembly and assembly mechanism 4 for easy replacement of the lock cylinder.

[0034] The switching mechanism 2 includes a carrying component and an insertion component. The carrying component is disposed inside the lock body 1, and the insertion component is disposed inside the lock body 1.

[0035] The padlock's ability to open and close is facilitated by the cooperation of the support component and the insertion component.

[0036] The adapter mechanism 3 includes a connecting component and a fixing component. The connecting component is located inside the lock body 1, and the fixing component is located on top of the connecting component.

[0037] The connection and fixing components facilitate the installation and disassembly of the limiting and disassembly mechanism 4, while the adapter mechanism 3 also facilitates its individual disassembly, maintenance and replacement.

[0038] The disassembly and assembly mechanism 4 includes a pick-up and put-out component and a locking component. The pick-up and put-out component is located inside the adapter mechanism 3, and the locking component is located inside the lock body 1.

[0039] The lock cylinder can be easily removed and replaced by the pick-and-place and locking components, and a new lock cylinder can be taken out and locked to reduce maintenance costs. At the same time, the operation is simple and convenient.

[0040] The lock cylinder can be fixed by tightening the locking assembly, and removed by loosening the locking assembly. The lock cylinder can be replaced depending on whether the locking assembly is tightened or loosened.

[0041] in;

[0042] like Figure 3 As shown, the load-bearing component includes blind holes 24 and springs 21. Blind holes 24 are respectively opened at both ends of the top of the lock body 1, and springs 21 are set at the bottom of the inner cavity of one side of the blind hole 24. The blind holes 24 are opened for the installation of springs 21 and for fitting the two ends of the lock beam 22.

[0043] like Figure 3 As shown, the fixing component includes a locking beam 22, which is slidably connected to the inside of a blind hole 24 on one side. One end of the locking beam 22 is located inside and connected to the spring 21. The locking beam 22 is mainly used to realize the opening and closing operation of the padlock, and can also realize the suspension operation to achieve the actual effect of the padlock.

[0044] like Figure 3As shown, the inner wall of the lock beam 22 has an arc-shaped groove, and the lock tongue 23 is placed on both sides of the inner cavity of the lock body 1. The lock tongue 23 is located inside the lock beam 22 and the arc-shaped groove. The lock beam 22 is U-shaped, and the arc-shaped groove is designed to fit the lock tongue 23. The lock tongue 23 in the padlock mainly functions as an opener and locker. The lock tongue 23 is an important component of the padlock and is responsible for controlling the opening and closing of the lock. Specifically, the lock tongue 23 cooperates with the lock cylinder to realize the locking and unlocking functions of the padlock. When the correct key is inserted and rotated, the mechanical structure inside the lock cylinder will move the lock tongue 23, thereby opening the padlock. Conversely, when the lock tongue 23 is in the locked state, the padlock cannot be opened.

[0045] As shown in the figure, the padlock is in the locked and closed state at this time. When it needs to be opened, the corresponding key is inserted into the lock cylinder body 41 from the bottom and then the key is turned. The key will drive the internal components of the lock cylinder body 41 to rotate, thereby driving the rotating part at the top to rotate together. Since the outer side of the top rotating part has a connecting groove, the connecting groove is compatible with the lock tongue 23 and increases the movement space of the lock tongue 23. Since the lock tongue 23 will no longer press against the lock beam 22 and the arc groove opened on the lock beam 22, the lock beam 22 is lifted upward according to the elasticity of the spring 21. At this time, one end of the lock beam 22 will push the corresponding lock tongue 23 to move in the increased space. Then, one end of the lock tongue 23 directly disengages from the lock body 1 and the corresponding blind hole 24 opened on the lock body 1, thereby completing the work of opening the padlock.

[0046] When the padlock needs to be fixed to a door or an object to be closed, the lock beam 22 is passed through the door ring or handle, and the lock body 1 is rotated so that the lock body 1 and the lock beam 22 are symmetrically arranged vertically, with the closed end of the lock beam 22 aligned with the corresponding blind hole 24. At this time, the lock beam 22 and the lock body 1 are pressed directly, causing the closed end of the lock beam 22 to be inserted into the blind hole 24 of the lock body 1. Since the top of the lock cylinder body 41 is equipped with a coil spring, the padlock will be reset after being rotated open. Based on the above, the lock cylinder body 41 limits the bolt 23 and reduces its space for movement, which will directly push it to the preset position and adapt to the arc groove to complete the limiting of the lock beam 22 and the locking operation of the padlock.

[0047] further;

[0048] like Figure 5 As shown, the connecting assembly includes a connecting sleeve 31, which is bolted to the inner wall of the lock body 1. An adapter hole 33 is provided on the top of the connecting sleeve 31. The connecting sleeve 31 is used for limiting the operation when the lock cylinder is replaced, while the adapter hole 33 can achieve a complete adaptation and limiting operation.

[0049] like Figure 5As shown, the fixing assembly includes a first bolt 32 and a first mounting hole, the first mounting hole is opened at the top of the connecting sleeve 31, the first bolt 32 is threadedly connected inside the first mounting hole, the opening of the first mounting hole facilitates the connection and installation of the first bolt 32, and the first bolt 32 plays a locking and fixing operation on the connecting sleeve 31.

[0050] As shown in the figure, the bottom of the other side blind hole 24 lumen is provided with a second mounting hole, the first bolt 32 is connected with the connecting sleeve 31 through the second mounting hole and the first mounting hole, and the second mounting hole is mainly used for adapting the first bolt 32 to facilitate the locking and fixing operation of the connecting sleeve 31. Figure 5

[0051] As shown in the figure, the mounting state is shown, when disassembly is needed, the padlock is in an open state, that is, the left end of the lock tongue 23 is separated from the lock body 1 and located above it, at this time, the corresponding tool is directly inserted into the corresponding blind hole 24 inside, and the first bolt 32 is adapted, the tool is directly rotated and the first bolt 32 is rotated, and through the threaded connection, it is gradually separated from the connecting sleeve 31, that is, from the first mounting hole, then the connecting sleeve 31 is directly made to gradually slide off and separate from the inside of the lock body 1, and the disassembly operation of the connecting sleeve 31 is completed;

[0052] For the installation of the connecting sleeve 31, reverse operation according to the above disassembly method can be performed, since the bottom of the lock body 1 is provided with a hole hole adapted to the connecting sleeve 31, the new connecting sleeve 31 after replacement or repair is directly slid into the inside of the lock body 1, then the first bolt 32 is rotated by the external corresponding tool, and extended into the corresponding first mounting hole, so as to be connected with the connecting sleeve 31, and the connecting sleeve 31 is fixed.

[0053] Preferably;

[0054] As shown in the figure, the taking and placing assembly includes a lock cylinder body 41, the lock cylinder body 41 is slidably located in the inside of the adapting hole 33, one side of the lock cylinder body 41 is provided with a first connecting hole 42, the main function of the lock cylinder body 41 in the padlock is to control the opening and closing of the lock, the lock cylinder body 41 is matched with the key through the internal mechanical structure, so as to ensure that only the correct key can open the lock, thereby ensuring the safety of the padlock, the first connecting hole 42 is mainly used for adapting the second bolt 43, to assist it to complete the subsequent disassembly and replacement and repair operation. Figure 4

[0055] As shown in the figure, the bottom of the other side blind hole 24 lumen is provided with a second mounting hole, the first bolt 32 is connected with the connecting sleeve 31 through the second mounting hole and the first mounting hole, and the second mounting hole is mainly used for adapting the first bolt 32 to facilitate the locking and fixing operation of the connecting sleeve 31. Figure 4 and 3 ​​As shown, the locking assembly includes a second connecting hole 44 opened on one side of the lock body 1, the first connecting hole 42 and the second connecting hole 44 are both internally threaded with a second bolt 43, the second connecting hole 44 is opened to facilitate the adaptation of the second bolt 43, and the second bolt 43 mainly fixes the lock cylinder body 41 inside the lock body.

[0056] As shown in the installed state, when the old lock cylinder body 41 needs to be removed and replaced with a new one, the old lock cylinder body 41 needs to be removed first. First, insert the corresponding tool into the first connecting hole 42, then adapt to one end of the second bolt 43. When the two are adapted, rotate the tool to drive the second bolt 43 to rotate together until the second bolt 43 is completely separated from the inside of the first connecting hole 42 and the lock cylinder body 41. Then the lock cylinder body 41 will slowly slide down due to its own weight, and separate from the connecting sleeve 31 and the inside of the lock body 1 to complete the removal operation.

[0057] When the removal is completed, the new lock cylinder body 41 can be removed and installed. Based on the above, the connecting sleeve 31 is in the installed state and has not been removed. At this time, the new lock cylinder body 41 needs to be moved from bottom to top and inserted into the adapter hole 33 inside the connecting sleeve 31, and the two are slid. Continue to slide upwards until the bottom between the two is horizontally aligned, and the top of the lock cylinder body 41 is adapted to the top of the inner cavity of the lock body 1.

[0058] Based on the above, as shown in Figure 3 The top of the inner cavity of the lock body 1 is provided with a groove adapted to the lock cylinder body 41, mainly used for limiting the position of the top of the new lock cylinder body 41 during installation, to ensure the accuracy of installation, and the top of the outer side of the lock cylinder body 41 is located between the two groups of lock tongues 23, and the two groups of lock tongues 23 are two stainless steel steel balls as shown in the figure.

[0059] When the above work is completed, the second bolt 43 can be rotated in the opposite direction. The second bolt 43 is first threaded between the second connecting hole 44, and then extends into the first connecting hole 42 of the lock cylinder body 41 and is threaded with it until it cannot be extended to the position and state. At this time, the second bolt 43 cannot be rotated to complete the locking and fixing state.

[0060] The connecting sleeve 31 is used to limit the installation of the lock core body 41, and the lock core body 41 is protected from damage, the connecting sleeve 31 and the lock core body 41 are bolted and fixed, and the two are convenient to disassemble and replace, the lock core of the existing padlock can be replaced alone when damaged, the lock core is replaced alone, the cost of replacement and maintenance is reduced, and the operation is convenient and simple.

[0061] Based on the above, the application includes but is not limited to the bolted fixing mode, and various modes such as elastic clamping can be used for the fixing operation of the lock core during disassembly and replacement.

[0062] A lock includes a lock core.

[0063] Although embodiments of the application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A padlock shackle replacement cylinder, comprising: The lock body (1), the matching mechanism (3) and the dismounting mechanism (4); The inside of the lock body (1) is provided with a switching mechanism (2) for switching the lock, and the inside of the lock body (1) is provided with a matching mechanism (3) for limiting the dismounting mechanism (4), and the inside of the matching mechanism (3) is provided with a dismounting mechanism (4) for facilitating replacement of the lock cylinder. The switching mechanism (2) comprises a bearing assembly and an insertion assembly, the bearing assembly is arranged in the inside of the lock body (1), and the insertion assembly is arranged in the inside of the lock body (1). The matching mechanism (3) comprises a connecting assembly and a fixing assembly, the connecting assembly is arranged in the inside of the lock body (1), the connecting assembly comprises a connecting sleeve (31), the connecting sleeve (31) is bolted to the inner side wall of the lock body (1), the top of the connecting sleeve (31) is provided with a matching hole (33), and the fixing assembly is arranged at the top of the connecting assembly. The dismounting mechanism (4) comprises a taking and placing assembly and a locking assembly, the taking and placing assembly is arranged in the inside of the matching mechanism (3), the taking and placing assembly comprises a lock cylinder body (41), the lock cylinder body (41) is slidably located in the inside of the matching hole (33), one side of the lock cylinder body (41) is provided with a first connecting hole (42), the locking assembly is arranged in the inside of the lock body (1), the locking assembly comprises a second connecting hole (44), the second connecting hole (44) is arranged on one side of the lock body (1), and the first connecting hole (42) and the second connecting hole (44) are both threadedly connected with a second bolt (43). The lock cylinder can be fixed by tightening the locking assembly, and the lock cylinder can be removed by loosening the locking assembly, and the lock cylinder can be replaced according to the tightening and loosening of the locking assembly.

2. A padlock shackle replacement cylinder according to claim 1 wherein: The bearing assembly comprises a blind hole (24) and a spring (21), the blind hole (24) is arranged at the two ends of the top of the lock body (1), and the spring (21) is arranged at the bottom of the inner cavity of one side of the blind hole (24).

3. A padlock shackle replacement cylinder according to claim 2, wherein: The fixing assembly comprises a lock beam (22), the lock beam (22) is slidably connected in the inside of one side of the blind hole (24), and one end of the lock beam (22) is located in the inside of the spring (21) and connected with the spring (21).

4. A padlock shackle replacement cylinder according to claim 3, wherein: The inside wall of the lock beam (22) is provided with an arc-shaped groove, lock lugs (23) are arranged on the two sides of the inner cavity of the lock body (1), the lock lugs (23) are located on the inside of the lock beam (22) and the arc-shaped groove, and the lock beam (22) is arranged in a U shape.

5. The padlock shackle replacement cylinder of claim 2, wherein: The fixing assembly comprises a first bolt (32) and a first mounting hole, the first mounting hole is arranged at the top of the connecting sleeve (31), and the first bolt (32) is threadedly connected in the first mounting hole.

6. A padlock shackle replacement cylinder according to claim 5 wherein: The bottom of the inner cavity of the other side of the blind hole (24) is provided with a second mounting hole, and the first bolt (32) is connected with the connecting sleeve (31) through the second mounting hole and the first mounting hole.

7. A lock characterised in that The lock cylinder comprises the lock cylinder according to any one of claims 1-6.

Citation Information

Patent Citations

  • Padlock with replaceable lock hoop

    CN117513879A

  • Fingerprint lock cylinder replacement structure for padlock

    WO2022021723A1