Mechanical lock with mechanical lock cylinder of self-lubricating structure
By incorporating a lubrication assembly consisting of an oil reservoir and sponge balls into the mechanical lock cylinder, the lubricating oil is generated through friction between the balls caused by the rotation of the key. This solves the problems of easy loss of syringes and cumbersome manual lubrication, achieving self-lubrication of the lock body and improving ease of use.
Patent Information
- Application Number
- CN202423298783.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2034-12-31
AI Technical Summary
The syringes used for lubrication in existing mechanical locks are easily lost, and the lubrication process requires cumbersome manual operation, which affects the effectiveness of use.
A self-lubricating mechanical lock cylinder was designed. By setting a lubrication component consisting of an oil reservoir, a sponge, and ball bearings inside the lock body, the key rotation drives the ball bearings to rub and carry out the lubricating oil, thus achieving self-lubrication.
It achieves self-lubrication of the lock body and lock cylinder, avoids rust, simplifies lubrication operations, and improves ease of use.
Smart Images

Figure CN223867807U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical lock technology, and in particular to a self-lubricating mechanical lock core. Background Technology
[0002] Door locks play a vital role in protecting personal and property safety. Based on their unlocking methods, they are generally divided into two types: electronic door locks and mechanical door locks. Mechanical door locks use a key that matches the lock to unlock or lock.
[0003] In the prior art, such as Chinese patent CN216380936U, a mechanical-electronic padlock with a built-in lubrication structure includes a padlock body, a linkage rod on the top of the padlock body, and a locking rod on one side of the linkage rod; a dust plug installed in the middle of the upper surface of the padlock body, an oil reservoir installed at one end of the padlock body, and a placement box connected to one side of the oil reservoir, the placement box having an elastic groove, and a syringe placed in the elastic groove; a lock cylinder located in the middle of the padlock body, a lubrication channel on the top of the lock cylinder, and steel balls installed on both sides of the lock cylinder; a return spring connected to the lower part of the locking rod, and a first electromagnet installed below the linkage rod. Compared with existing devices, this mechanical-electronic padlock with a built-in lubrication structure allows lubricating oil to be easily drawn from the oil reservoir using a syringe and then inserted into the lubrication channel, thereby achieving a lubrication effect on the lock cylinder.
[0004] In the aforementioned patent, although an oil reservoir is provided on the outside of the lock body and an oil injector is provided, the injector can easily draw lubricating oil from the oil reservoir and put it into the lubrication channel to lubricate the lock cylinder. However, the injector is inserted into a storage box, which is easy to lose and affects the lubrication of the lock body. In addition, the lubrication process requires personnel to manually inject an appropriate amount of oil into the lock cylinder, which is a cumbersome operation and affects the use of the mechanical lock. Utility Model Content
[0005] The purpose of this utility model is to solve the problems in the existing technology where the injector for oiling is inserted into the storage box, which is easy to lose and affects the oiling and lubrication of the lock body. In addition, the lubrication process requires personnel to manually inject an appropriate amount of oil into the lock cylinder, which is a cumbersome operation and affects the use of mechanical locks. Therefore, a self-lubricating mechanical lock cylinder is proposed.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a self-lubricating mechanical lock cylinder, comprising: a lock body, wherein a mounting groove is provided at the center of the top of the lock body, a cover is provided on the inner surface of the mounting groove, and a through hole is provided at the center of the bottom of the mounting groove, the through hole being connected to the lock body; a lubrication assembly, wherein the lubrication assembly is disposed inside the through hole, the lubrication assembly comprising an oil storage cylinder, the oil storage cylinder being disposed on the inner surface of the through hole, a fixed shaft being fixedly connected at the center of the bottom of the oil storage cylinder, a rotating plate being rotatably connected to the bottom of the fixed shaft, a protrusion being fixedly connected to the bottom of the rotating plate, a plurality of balls being equidistantly arranged at the top edge of the rotating plate, ball seats being symmetrically arranged on the outer surface of the plurality of balls, and a sponge being provided at the bottom of the oil storage cylinder.
[0007] Preferably, the ball seats are arranged in multiple groups, and the bottom of the oil storage cylinder is provided with multiple mounting holes at equal intervals, with the multiple groups of ball seats respectively disposed inside the multiple mounting holes.
[0008] Preferably, the inner surface of the oil storage cylinder is fixedly connected with multiple limiting blocks at equal intervals, and the outer surface of the sponge is in contact with the outer surface of the multiple limiting blocks.
[0009] Preferably, the outer surfaces of the plurality of balls are bonded to the outer surface of the sponge, and the outer surface of the sponge is bonded to the inner surface of the oil storage cylinder.
[0010] Preferably, the inner surface of the lock body is provided with a lock cylinder, and the bottom of the lock cylinder is provided with a lock hole, which is through-hole.
[0011] Preferably, the keyhole is connected to the lock body, and the protrusion is located inside the keyhole.
[0012] Preferably, a guide block is provided at the top of the oil storage cylinder, the guide block is located inside the mounting groove, and the inner side of the guide block is funnel-shaped.
[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0014] 1. In this utility model, when a person inserts a key into the keyhole and rotates it to open or close the lock, the lock cylinder will drive the protrusion to rotate, causing the rotating plate to rub against multiple balls. When the multiple balls roll in the limit position, they will carry out the oil stored in the oil reservoir and sponge, allowing a small amount of lubricating oil to penetrate into the lock body, lock cylinder, and keyhole, thus playing a self-lubricating role, preventing rust from appearing inside the lock body, and making it convenient for people to use. This solves the problems in the background technology, where the injector used for oiling is inserted into the storage box, which is easy to lose and affects the oiling of the lock body. In addition, the lubrication process requires personnel to manually inject an appropriate amount of oil into the lock cylinder, which is a relatively cumbersome operation and affects the use effect of the mechanical lock.
[0015] 2. In this utility model, when in use, multiple limiting blocks are equidistantly arranged on the inner side of the oil storage cylinder. When the sponge is embedded in the oil storage cylinder, the sponge can be limited to prevent the sponge from shifting when the ball rolls, thus affecting the contact between the ball and the sponge. By setting the inner side of the guide block into a funnel shape, it is helpful to guide the residual oil into the oil storage cylinder when there is less oil inside. It is highly practical. Attached Figure Description
[0016] Figure 1 A perspective view of a self-lubricating mechanical lock cylinder is provided for this utility model;
[0017] Figure 2 This utility model provides a partial structural diagram of a self-lubricating mechanical lock core.
[0018] Figure 3 This utility model provides a schematic diagram of the lock body structure of a self-lubricating mechanical lock core.
[0019] Figure 4 This utility model provides a schematic diagram of the lubrication component structure of a self-lubricating mechanical lock core.
[0020] Figure 5 This utility model provides a schematic diagram of the rotating plate structure of a self-lubricating mechanical lock core.
[0021] Figure 6 This utility model provides a schematic diagram of the oil storage cylinder structure of a self-lubricating mechanical lock core.
[0022] Figure 7 This utility model presents a schematic diagram of the ball bearing structure of a self-lubricating mechanical lock core.
[0023] Legend: 1. Lock body; 2. Lock cylinder; 3. Lock hole; 4. Cover; 5. Lubrication assembly; 501. Guide block; 502. Oil reservoir; 503. Fixed shaft; 504. Rotating plate; 505. Protrusion; 506. Ball bearing; 507. Limiting block; 508. Sponge; 509. Ball seat; 6. Mounting groove; 7. Through hole. Detailed Implementation
[0024] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0026] Example 1: As Figures 1-7 As shown, this utility model provides a self-lubricating mechanical lock cylinder, comprising: a lock body 1, with a mounting groove 6 at the top center of the lock body 1, a cover 4 on the inner surface of the mounting groove 6, and a through hole 7 at the bottom center of the mounting groove 6, the through hole 7 communicating with the lock body 1; a lubrication assembly 5, disposed inside the through hole 7, the lubrication assembly 5 including an oil reservoir 502, the oil reservoir 502 being disposed on the inner surface of the through hole 7, a fixed shaft 503 fixedly connected to the bottom center of the oil reservoir 502, a rotating plate 504 rotatably connected to the bottom of the fixed shaft 503, and a protrusion 505 fixedly connected to the bottom of the rotating plate 504. Multiple balls 506 are equidistantly arranged at the top edge, and ball seats 509 are symmetrically arranged on the outer surface of each ball 506. A sponge 508 is arranged at the inner bottom of the oil storage cylinder 502. Multiple ball seats 509 are arranged in multiple groups. Multiple mounting holes are equidistantly opened at the inner bottom of the oil storage cylinder 502. Multiple groups of ball seats 509 are respectively arranged inside multiple mounting holes. The outer surface of the multiple balls 506 is in contact with the outer surface of the sponge 508. The outer surface of the sponge 508 is in contact with the inner surface of the oil storage cylinder 502. A lock cylinder 2 is arranged on the inner surface of the lock body 1. A lock hole 3 is opened at the bottom of the lock cylinder 2. The lock hole 3 is through and connected to the lock body 1. A protrusion 505 is located inside the lock hole 3.
[0027] The overall effect of Embodiment 1 is as follows: When the mechanical padlock is in use, an installation groove 6 is opened at the center of the top of the lock body 1, and a through hole 7 is opened at the bottom of the installation groove 6 to communicate with the lock body 1. The oil guide block 501 and the oil storage cylinder 502 are respectively installed inside the installation groove 6 and the through hole 7. An appropriate amount of lubricating oil is injected into the guide block 501 and the oil storage cylinder 502 in advance so that the sponge 508 can fully absorb the oil. The sponge 508 is then sealed by connecting it to the lock body 1 through the cap 4. When a person uses the matching key to insert into the keyhole 3 and rotates it, the lock cylinder 2 rotates inside the lock body 1 to open and close the lock. The lock cylinder 2 will drive the protrusion 505, causing the rotating plate 504 to rotate on the outer surface of the fixed shaft 503. The rotating plate 504, which rotates synchronously, will rub against the multiple balls 506 set at its top edge. The process involves rubbing, causing multiple ball bearings 506 to roll within multiple ball seats 509. During this rolling, the ball bearings 506 carry out the oil stored in the oil reservoir 502 and sponge 508, allowing a small amount of lubricating oil to penetrate into the lock body 1, lock cylinder 2, and lock hole 3, thus providing lubrication. This ensures that there is always a suitable amount of lubricating oil in the gaps between the lock cylinder 2, lock body 1, and lock hole 3, preventing rust between the lock body 1 and lock cylinder 2 when lubrication is neglected. This self-lubricating effect is convenient for users and solves the problems in the background technology where the injector used for lubrication is inserted into a storage box, which is easily lost and affects the lubrication of the lock body. Furthermore, the lubrication process requires manual injection of a suitable amount of oil into the lock cylinder 2, which is cumbersome and affects the performance of the mechanical lock.
[0028] Example 2: As Figures 1-7 As shown, multiple limiting blocks 507 are fixedly connected at equal intervals on the inner surface of the oil storage cylinder 502. The outer surface of the sponge 508 is in contact with the outer surface of the multiple limiting blocks 507. A guide block 501 is provided on the top of the oil storage cylinder 502. The guide block 501 is located inside the mounting groove 6. The inner side of the guide block 501 is funnel-shaped.
[0029] The overall effect of Embodiment 2 is that, during use, by equidistantly setting multiple limiting blocks 507 on the inner side of the oil storage cylinder 502, the sponge 508 can be limited when it is embedded inside the oil storage cylinder 502, preventing the ball bearing 506 from shifting during rolling and affecting the contact between the ball bearing 506 and the sponge 508. By setting the inner side of the guide block 501 in a funnel shape, it helps to guide the residual oil into the oil storage cylinder 502 when there is less oil inside, which is highly practical.
[0030] Working principle: When using a mechanical padlock, an installation groove 6 is opened at the center of the top of the lock body 1, and a through hole 7 is opened at the bottom of the installation groove 6 to communicate with the lock body 1. An oil guide block 501 and an oil reservoir 502 are installed inside the installation groove 6 and the through hole 7, respectively. An appropriate amount of lubricating oil is injected into the guide block 501 and the oil reservoir 502 beforehand, allowing the sponge 508 to fully absorb the oil. The sponge 508 is then sealed by a cap 4 connected to the lock body 1. When a person inserts the matching key into the keyhole 3 and rotates it, the lock cylinder 2 rotates within the lock body 1 to open and close the lock. The lock cylinder 2 drives the protrusion 505, causing the rotating plate 504 to rotate on the outer surface of the fixed shaft 503. The synchronously rotating rotating plate 504 rubs against multiple balls 506 set at its top edge, causing the balls 506 to roll within multiple ball seats 509. During the rolling process, the oil stored in the oil reservoir 502 and sponge 508 is carried out, allowing a small amount of lubricating oil to penetrate into the lock body 1, lock cylinder 2, and lock hole 3, thus providing lubrication. This ensures that there is always a suitable amount of lubricating oil in the gap between the lock cylinder 2, the lock body 1, and the lock hole 3, preventing rust between the lock body 1 and the lock cylinder 2 when people forget to lubricate and maintain the lock body 1. It has a self-lubricating effect and is easy to use. By setting multiple limiting blocks 507 at equal intervals on the inner side of the oil reservoir 502, the sponge 508 can be limited when it is embedded in the oil reservoir 502, preventing the ball bearing 506 from shifting during rolling and affecting the contact between the ball bearing 506 and the sponge 508. By setting the inner side of the guide block 501 in a funnel shape, it helps to guide the remaining oil into the oil reservoir 502 when the internal oil is low, making it highly practical.
[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A self-lubricating mechanical lock cylinder, characterized in that, include: The lock body (1) has an installation groove (6) at the top center, a cover (4) is provided on the inner surface of the installation groove (6), and a through hole (7) is provided at the bottom center of the installation groove (6), and the through hole (7) is connected to the lock body (1). A lubrication assembly (5) is disposed inside a through hole (7). The lubrication assembly (5) includes an oil reservoir (502) disposed on the inner surface of the through hole (7). A fixed shaft (503) is fixedly connected to the bottom center of the oil reservoir (502). A rotating plate (504) is rotatably connected to the bottom of the fixed shaft (503). A protrusion (505) is fixedly connected to the bottom of the rotating plate (504). Multiple balls (506) are equidistantly arranged at the top edge of the rotating plate (504). Ball seats (509) are symmetrically arranged on the outer surface of the multiple balls (506). A sponge (508) is disposed at the inner bottom of the oil reservoir (502).
2. The self-lubricating mechanical lock cylinder according to claim 1, characterized in that: The ball seats (509) are arranged in multiple groups, and the inner bottom of the oil storage cylinder (502) is provided with multiple mounting holes at equal intervals. The multiple groups of ball seats (509) are respectively arranged inside the multiple mounting holes.
3. The self-lubricating mechanical lock cylinder according to claim 2, characterized in that: The inner surface of the oil storage cylinder (502) is fixedly connected with multiple limiting blocks (507) at equal intervals, and the outer surface of the sponge (508) is in contact with the outer surface of the multiple limiting blocks (507).
4. The self-lubricating mechanical lock cylinder according to claim 3, characterized in that: The outer surfaces of the plurality of balls (506) are attached to the outer surface of the sponge (508), and the outer surface of the sponge (508) is attached to the inner surface of the oil storage cylinder (502).
5. The self-lubricating mechanical lock cylinder according to claim 4, characterized in that: The inner surface of the lock body (1) is provided with a lock cylinder (2), and the bottom of the lock cylinder (2) is provided with a lock hole (3), which is through.
6. The self-lubricating mechanical lock cylinder according to claim 5, characterized in that: The lock hole (3) is connected to the lock body (1), and the protrusion (505) is located inside the lock hole (3).
7. The self-lubricating mechanical lock cylinder according to claim 6, characterized in that: A guide block (501) is provided on the top of the oil storage cylinder (502). The guide block (501) is located inside the mounting groove (6), and the inner side of the guide block (501) is funnel-shaped.
Citation Information
Patent Citations
Mechanical electronic padlock with built-in lubricating structure
CN216380936U