Self-lubricating lock cylinder

By setting up a lubricating structure inside the lock body, including a connecting plate and lubricating block, and automatically applying lubricating oil to the surface of the lock bolt, the problem of rust of the lock core and key during the use of the lock is solved, and the automatic lubrication of the lock core and the service life are extended.

CN223003882UActive Publication Date: 2025-06-20宁波鑫浦金属制品有限公司
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Patent Information

Application Number
CN202422218351.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-11
Publication Date
2025-06-20
Estimated Expiration
2034-09-11

AI Technical Summary

Technical Problem

During the use of the lock, the lock core and key are prone to rust, making it difficult to insert the key into the key hole, affecting normal unlocking.

Method used

A lubricating structure is arranged inside the lock body, including a connecting plate and a lubricating block. When the lubricating block rotates, lubricating oil is automatically applied to the surface of the locking bolt to reduce friction and achieve automatic lubrication.

Benefits of technology

Through the automatic lubrication structure, the friction between the lock bolt and the inner wall of the lock body is reduced, the normal rotation and unlocking of the lock core are ensured, and the service life of the lock core is extended.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223003882U_ABST
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Abstract

The utility model discloses a self-lubricating lock cylinder which comprises a lock body and a lock bolt, the lock body is of an up-down through structure, the upper half portion of the lock body is of a circular truncated cone structure, the lower half portion of the lock body is of a cylinder structure, the inner wall of the lock body is provided with a groove structure, the section of the groove structure is in a cyclone shape, and the lock bolt is rotationally installed on the inner wall of the lock body. The other end of the lock bolt penetrates through the lower end of the lock body, the lock bolt is of a cylindrical structure, a lock block matched with a key is arranged in the lock bolt, a lock hole is formed in the surface of one side of the lock bolt, the lock hole is communicated with the lock block in the lock bolt, and the other end of the lock bolt is connected with a rotating tongue. According to the self-lubricating lock cylinder, the connecting plate is installed on the inner wall of the lock body in an embedded mode, the spherical lubricating block is rotationally installed on the surface of the connecting plate, the lubricating block makes contact with a lock bolt, and the friction force between the lock bolt and the inner wall of the lock body can be reduced through the rotating lubricating block.
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Description

Technical Field

[0001] The utility model relates to the technical field of locks, in particular to a lock core with automatic lubrication. Background Technique

[0002] A lock refers to an appliance that plays a closing role, which includes a lock, a key and its accessories. In addition to being opened with a key, a lock can also be opened by instructions such as light, electricity, magnetism, sound and fingerprint. A lock is an important protective article and also has the functions of management and decoration. In a lock, the lock core is a very important component. The lock core is the main part that controls the opening of the lock and is the heart of the lock. It refers to the core part that can rotate with the key and drive the bolt to move. Locks have various forms, and the cylinder lock core tongue lock is one of them. The lock is opened and locked by driving the tongue to rotate by rotating the lock core.

[0003] During the use of locks, the lock core or the key usually rusts, making it difficult to insert the key into the keyhole, which brings some unnecessary troubles to the normal unlocking. Usually, the lock core is lubricated with lead powder or lubricating oil. However, pencils and lubricating oil cannot be carried with you, so it will affect the unlocking process of the lock and cause an impact on daily life. Content of the Utility Model

[0004] The purpose of the utility model is to provide a lock core with automatic lubrication. A lubrication structure is arranged inside the lock body of the device, and the bolt is automatically lubricated during the rotation of the bolt, so as to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a lock core with automatic lubrication,

[0006] Preferably, it includes a lock body and a bolt. The lock body is a structure that penetrates up and down. The upper half of the lock body is a frustum structure, and the lower half of the lock body is a cylindrical structure. A groove structure with a cyclone-shaped cross-section is arranged on the inner wall of the lock body. A bolt is rotatably installed on the inner wall of the lock body. The other end of the bolt penetrates the lower end of the lock body. The bolt is a cylindrical structure, and a lock block matching the key is arranged inside the bolt. A keyhole is arranged on one side surface of the bolt, and the keyhole communicates with the lock block inside the bolt. The other end of the bolt is connected to a tongue connection.

[0007] Adopting the above technical solution, a lubrication structure is arranged inside the lock body, and the lubrication structure sets a rotating lubricating block to automatically lubricate the rotating bolt.

[0008] Preferably, the lubrication structure includes a connecting plate. The connecting plate is installed on the inner wall of the lock body, and the connecting plate is embedded in the inner wall of the lock body and is flush with the inner wall of the lock body.

[0009] With the above technical solution, the lubrication structure can be used to automatically lubricate during the rotation of the lock core.

[0010] Preferably, the lock body is a hollow structure, and an oil storage cavity is arranged inside the lock body. The oil storage cavity is fixedly connected to the side surface of the connecting plate. One side of the oil storage cavity is open and in contact with the side surface of the connecting plate. A lubricating block is rotatably installed on the surface of the connecting plate. The lubricating block is a spherical structure, and the other side of the lubricating block is located inside the oil storage cavity.

[0011] With the above technical solution, the rotating lubricating block can lubricate the lock bolt.

[0012] Preferably, an oil injection structure is arranged on the surface of the lock body. The oil injection structure is provided with an oil injection port for facilitating the filling of lubricating oil into the oil storage cavity.

[0013] With the above technical solution, the oil injection structure can conveniently fill lubricating oil into the oil storage cavity.

[0014] Preferably, the oil injection structure includes an oil injection port which is arranged through the upper surface of the lock body. A connecting pipe is arranged on the lower surface of the oil injection port, and the other end of the connecting pipe penetrates through the surface of the oil storage cavity. A detachable threaded cap is arranged on the surface of the oil injection port.

[0015] With the above technical solution, the lubricating oil can be injected into the oil storage cavity by using the oil injection port and the connecting pipe.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows: The lock core with automatic lubrication:

[0017] 1. In this device, a connecting plate is embedded and installed on the inner wall of the lock body, and a spherical lubricating block is rotatably installed on the surface of the connecting plate. By using the contact between the lubricating block and the lock bolt, the rotating lubricating block can reduce the friction between the lock bolt and the inner wall of the lock body;

[0018] 2. On one side surface of the connecting plate of this device, an oil storage cavity is arranged, and lubricating oil is placed in the oil storage cavity. The rotating lubricating block can smear the lubricating oil on the outer surface of the lock bolt, thereby realizing the automatic lubrication of the lock bolt and increasing the service life of the lock core;

[0019] 3. An oil injection port is arranged through the upper surface of the lock body in this device. The oil injection port is a detachable threaded cap, and a connecting pipe is arranged on the lower surface of the oil injection port and connected to the oil storage cavity, making it convenient for the device to inject lubricating oil into the oil storage cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a front view structural schematic diagram of the present utility model;

[0021] Figure 2 is a bottom view structural schematic diagram of the present utility model;

[0022] Figure 3 Schematic diagram of the bolt structure of the present utility model;

[0023] Figure 4 Top view structure schematic diagram of the lock body of the present utility model;

[0024] Figure 5 Front cross-sectional structure schematic diagram of the lock body of the present utility model;

[0025] Figure 6 Front cross-sectional structure schematic diagram of the oil storage cavity of the present utility model.

[0026] In the figure: 1, lock body; 2, bolt; 3, keyhole; 4, connecting plate; 5, oil storage cavity; 6, lubricating block; 7, oil injection port; 8, connecting pipe. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] Please refer to Figures 1-6 , the present utility model provides a technical solution: an automatically lubricated lock core, including a lock body 1, a bolt 2, a keyhole 3, a connecting plate 4, an oil storage cavity 5, a lubricating block 6, an oil injection port 7, and a connecting pipe 8.

[0029] The lock body 1 is a structure that penetrates up and down. The upper half of the lock body 1 is a frustum structure, and the lower half of the lock body 1 is a cylindrical structure. The inner wall of the lock body 1 is provided with a groove structure with a cyclone-shaped cross-section. A bolt 2 is rotatably installed on the inner wall of the lock body 1. The other end of the bolt 2 penetrates the lower end of the lock body 1. The bolt 2 is a cylindrical structure, and a lock block matching the key is provided inside the bolt 2. A keyhole 3 is provided on one side surface of the bolt 2, and the keyhole 3 communicates with the lock block inside the bolt 2. The other end of the bolt 2 is connected with a latch connection;

[0030] As Figure 1 , Figure 2 and Figure 3 shown, when using this device, connect one end of the bolt 2 with the latch, insert the key into the keyhole 3, and engage it with the lock block provided inside the bolt 2. Rotate the bolt 2. During the process of the bolt 2 rotating on the inner wall of the lock body 1, drive the latch connected to the surface of the bolt 2 to rotate. The rotating latch can realize the opening and closing of the lock core.

[0031] The interior of the lock body 1 is provided with a lubrication structure. The lubrication structure is provided with a rotating lubricating block 6 to automatically lubricate the rotating lock bolt 2. The lubrication structure includes a connecting plate 4. The connecting plate 4 is installed on the inner wall of the lock body 1, and the connecting plate 4 is embedded in the inner wall of the lock body 1 and is flush with the inner wall of the lock body 1. The lock body 1 is a hollow structure. An oil storage cavity 5 is arranged inside the lock body 1. The oil storage cavity 5 is fixedly connected to the side surface of the connecting plate 4. One side of the oil storage cavity 5 is open and in contact with the side surface of the connecting plate 4. A lubricating block 6 is rotatably installed on the surface of the connecting plate 4. The lubricating block 6 is a spherical structure, and the other side of the lubricating block 6 is located inside the oil storage cavity 5;

[0032] As Figure 4 , Figure 5 and Figure 6 shown, lubricating oil is placed inside the oil storage cavity 5. When the lock bolt 2 rotates inside the lock body 1, the spherical lubricating block 6 rotates driven by the lock bolt 2. The rotating lubricating block 6 can reduce the friction between the lock bolt 2 and the inner wall of the lock body 1. At the same time, during the rotation of the lubricating block 6, the lubricating oil inside the oil storage cavity 5 is smeared on the surface of the lock bolt 2, thereby lubricating the surface of the lock bolt 2 and increasing the service life of the device.

[0033] The surface of the lock body 1 is provided with an oil injection structure. The oil injection structure is provided with an oil injection port 7 for facilitating the filling of lubricating oil into the oil storage cavity 5. The oil injection structure includes an oil injection port 7. The oil injection port 7 is arranged through the upper surface of the lock body 1. A connecting pipe 8 is arranged on the lower surface of the oil injection port 7. The other end of the connecting pipe 8 penetrates the surface of the oil storage cavity 5. A detachable threaded cap is arranged on the surface of the oil injection port 7;

[0034] As Figure 4 , Figure 5 and Figure 6 shown, rotate the threaded cap on the surface of the oil injection port 7, inject lubricating oil into the oil injection port 7. The lubricating oil enters the interior of the oil storage cavity 5 along the connecting pipe 8. Rotate the threaded cap to close the oil injection port 7 again, and the lubricating oil can be stored inside the oil storage cavity 5.

[0035] Working principle: When using this automatically lubricated lock core, insert the key into the keyhole 3 and rotate the lock bolt 2. The lock bolt 2 rotates on the inner wall of the lock body 1. The rotating lock bolt 2 drives the lubricating block 6 to rotate. The rotating lubricating block 6 smears the lubricating oil stored in the oil storage cavity 5 on the surface of the lock bolt 2, lubricates between the lock bolt 2 and the lock body 1, and increases the service life of the device. The oil injection port 7 can be used to inject lubricating oil into the interior of the oil storage cavity 5, increasing the overall practicality.

[0036] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic lubricating lock core, comprising a lock body (1) and a lock bolt (2), characterized in that: The lock body (1) is a structure that is connected from top to bottom, and the upper part of the lock body (1) is a truncated cone structure, and the lower part of the lock body (1) is a cylindrical structure. The inner wall of the lock body (1) is provided with a groove structure with a cross-section of a whirlwind shape. A lock bolt (2) is rotatably mounted on the inner wall of the lock body (1), and the other end of the lock bolt (2) passes through the lower end of the lock body (1). The lock bolt (2) is a cylindrical structure, and a lock block matching a key is arranged inside the lock bolt (2). A keyhole (3) is arranged on one side surface of the lock bolt (2), and the keyhole (3) is connected with the lock block inside the lock bolt (2). The other end of the lock bolt (2) is connected with a rotating tongue.

2. The automatic lubricating lock cylinder according to claim 1, characterized in that: A lubrication structure is provided inside the lock body (1), and a rotating lubrication block (6) is provided in the lubrication structure to automatically lubricate the rotating lock bolt (2).

3. The automatic lubricating lock cylinder according to claim 2, characterized in that: The lubrication structure comprises a connecting plate (4), wherein the connecting plate (4) is mounted on the inner wall of the lock body (1), and the connecting plate (4) is embedded in the inner wall of the lock body (1), and the connecting plate (4) is flush with the inner wall of the lock body (1).

4. The automatic lubricating lock cylinder according to claim 1, characterized in that: The lock body (1) is a hollow structure, an oil storage chamber (5) is arranged inside the lock body (1), the oil storage chamber (5) is fixedly connected to the side surface of the connecting plate (4), one side of the oil storage chamber (5) is open and contacts the side surface of the connecting plate (4), a lubricating block (6) is rotatably mounted on the surface of the connecting plate (4), the lubricating block (6) is a spherical structure, and the other side of the lubricating block (6) is located inside the oil storage chamber (5).

5. The automatic lubricating lock cylinder according to claim 1, characterized in that: The surface of the lock body (1) is provided with an oil injection structure, and the oil injection structure is provided with an oil injection port (7) for facilitating the filling of lubricating oil into the oil storage cavity (5).

6. The automatic lubricating lock cylinder according to claim 5, characterized in that: The oil filling structure comprises an oil filling port (7), wherein the oil filling port (7) is arranged through the upper surface of the lock body (1), a connecting pipe (8) is arranged on the lower surface of the oil filling port (7), the other end of the connecting pipe (8) passes through the surface of the oil storage cavity (5), and a detachable threaded cover is arranged on the surface of the oil filling port (7).