Lock shell with good wear-resistant effect

By incorporating an arc-shaped slot, a limiting post, a protective plate, a lubrication layer, an anti-corrosion layer, and a sound insulation layer into the lock case, the wear problem of the lock case is solved, achieving the effects of dust prevention, friction reduction, corrosion prevention, and noise reduction, thus extending the service life of the lock case.

CN223781260UActive Publication Date: 2026-01-09SUZHOU YISONGKUN HARDWARE PROD CO LTD
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Patent Information

Application Number
CN202520212655.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-11
Publication Date
2026-01-09
Estimated Expiration
2035-02-11

AI Technical Summary

Technical Problem

In existing lock cases, the keyhole area of ​​the lock cylinder is exposed for a long time during use, which makes it easy for dust to enter, increasing friction and wear between the lock case and the lock cylinder, and affecting the service life.

Method used

A lock case structure was designed, which includes an arc-shaped slot, a limiting post, a protective plate, a lubrication layer, an anti-corrosion layer, and a sound insulation layer. The protective plate prevents dust from entering, the lubrication layer reduces friction, the anti-corrosion layer prevents corrosion, and the sound insulation layer reduces noise and extends service life.

Benefits of technology

It effectively prevents dust from entering, reduces wear on the lock case and lock cylinder, reduces friction and corrosion, reduces noise, and improves the performance and lifespan of the lock case.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223781260U_ABST
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Abstract

The utility model belongs to the technical field of lock shells, and discloses a lock shell with a good wear-resistant effect, which comprises a lock shell body, an arc-shaped slot is arranged at the top end of one side of the lock shell body, a circular mounting groove is arranged at the position, right below the arc-shaped slot, of one side of the lock shell body, and a limiting column is movably arranged in the circular mounting groove. A protection plate is installed on one side of the limiting column and located outside the lock shell body, and an arc-shaped inserting plate is installed at the top end, close to one side of the lock shell body, of one side of the protection plate. According to the device, the lock shell body and the lock cylinder can be protected through the protection plate, abrasion of the lock shell body caused by dust entering the lock shell body is reduced, meanwhile, friction between the lock cylinder and the lock shell body can be reduced through the lubricating layer, and corrosion of substances such as water to the lock shell body is reduced through the anti-corrosion layer; and noise transmission in the unlocking process is reduced through the sound insulation layer, so that the using effect of the lock shell is improved, and the service life of the lock shell is prolonged.
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Description

Technical Field

[0001] This utility model belongs to the field of lock case technology, and more specifically, it relates to a lock case with good wear resistance. Background Technology

[0002] The lock case is an important component of a lock, usually referring to the outer shell of the lock. Its main function is to protect the internal mechanical components such as the lock cylinder, springs, and bolt from damage or destruction caused by the external environment. The lock case also provides structural support for the lock and connects to the door frame, door panel, or other fixed objects.

[0003] In some modern lock cases, the keyhole area of ​​the lock cylinder is exposed to the outside for extended periods during use. This allows dust to easily enter the lock case and lock cylinder, increasing friction and wear between them and affecting the lifespan of the lock case.

[0004] Therefore, in view of this, we will study and improve the existing structure and its shortcomings to provide a lock case with good wear resistance, in order to achieve a more practical purpose. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a lock case with good wear resistance, which is achieved by the following specific technical means:

[0006] A lock case with good wear resistance includes a lock case body. An arc-shaped slot is provided at the top of one side of the lock case body. A circular mounting groove is provided on one side of the lock case body at a position directly below the arc-shaped slot. A limiting post is movably installed in the circular mounting groove. A protective plate is installed on one side of the limiting post, and the protective plate is located outside the lock case body. An arc-shaped insert is installed on the top of one side of the protective plate near the lock case body.

[0007] Furthermore, the position and size of the arc-shaped insert plate are matched with the position and size of the arc-shaped slot, respectively.

[0008] Furthermore, the protective plate has a pull block installed on the side away from the lock housing body.

[0009] Furthermore, the inner side of the lock housing body is provided with a lubricating layer, the outer side of the lubricating layer is provided with an anti-corrosion layer, and the outer side of the anti-corrosion layer is provided with a sound insulation layer.

[0010] Furthermore, the material of the lubricating layer is grease.

[0011] Furthermore, the anti-corrosion layer is made of zinc plating.

[0012] Furthermore, the sound insulation layer is made of silicone.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The wear-resistant lock case of this invention utilizes a combination of the lock case body, arc-shaped slot, circular mounting groove, limiting post, protective plate, arc-shaped insert plate, pull block, lubrication layer, anti-corrosion layer, and sound insulation layer. The protective plate effectively protects the lock case body and lock cylinder, reducing dust ingress and wear. The lubrication layer reduces friction between the lock cylinder and lock case body, the anti-corrosion layer reduces corrosion from moisture and other substances, and the sound insulation layer reduces noise transmission during unlocking, thus improving the lock case's performance and lifespan. Attached Figure Description

[0015] Figure 1 This is a three-dimensional exploded view of this utility model.

[0016] Figure 2 This is a three-dimensional schematic diagram of the present invention.

[0017] Figure 3 This is a cross-sectional schematic diagram of the internal material of the lock housing body of this utility model.

[0018] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0019] 1. Lock housing body; 2. Arc-shaped slot; 3. Circular mounting slot; 4. Limiting post; 5. Protective plate; 6. Arc-shaped insert plate; 7. Pull block; 8. Lubricating layer; 9. Anti-corrosion layer; 10. Sound insulation layer. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0021] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Example:

[0024] As attached Figure 1 To be continued Figure 3 As shown:

[0025] This utility model provides a lock case with good wear resistance, including a lock case body 1. An arc-shaped slot 2 is provided at the top of one side of the lock case body 1. A circular mounting groove 3 is provided on one side of the lock case body 1 at a position directly below the arc-shaped slot 2. A limiting post 4 is movably installed in the circular mounting groove 3. A protective plate 5 is installed on one side of the limiting post 4 and is located outside the lock case body 1. An arc-shaped insert 6 is installed at the top of one side of the protective plate 5 near the lock case body 1.

[0026] The position and size of the arc-shaped insert 6 are matched with the position and size of the arc-shaped slot 2, so that the arc-shaped insert 6 can enter the arc-shaped slot 2, and the protective plate 5 can be fixed to one side of the lock body 1 when idle.

[0027] Among them, the protective plate 5 has a pull block 7 installed on the side away from the lock shell body 1, which makes it easy to pull the protective plate 5.

[0028] The lock housing body 1 has a lubrication layer 8 on its inner side, an anti-corrosion layer 9 on its outer side, and a sound insulation layer 10 on its outer side. The lubrication layer 8 can reduce the friction between the lock cylinder and the lock housing body 1, the anti-corrosion layer 9 can reduce the corrosion of the lock housing body 1 by moisture and other substances, and the sound insulation layer 10 can reduce the noise generated during the unlocking process.

[0029] Among them, the material of the lubrication layer 8 is grease. Grease can form a lubricating film between components, reduce friction, reduce wear, and thus extend the service life of the lock.

[0030] Among them, the anti-corrosion layer 9 is made of zinc plating. The zinc plating layer can effectively prevent moisture, air and other corrosive substances from directly contacting the metal surface of the lock body 1, thereby extending its service life.

[0031] Among them, the sound insulation layer 10 is made of silicone. Silicone itself has good elasticity and toughness, which can effectively absorb and isolate vibration and noise. Its unique structure can reduce the propagation of sound waves, thereby achieving the effect of sound insulation.

[0032] The working principle of this embodiment is as follows: When the wear-resistant lock case is in use, the protective plate 5 can protect the lock case body 1 and the lock cylinder, reducing dust from entering the lock case body 1 and causing wear to the lock case body 1 and the lock cylinder structure. When unlocking, the user can pull the protective plate 5 out by pulling the pull block 7, so that the arc-shaped insert 6 is disengaged from the arc-shaped slot 2. At this time, under the action of gravity, the protective plate 5 rotates downward around the limiting post 4 as the axis, making it convenient for the user to unlock with the key. After unlocking, the user can pull the protective plate 5 to rotate, so that the arc-shaped insert 6 is rotated to a position parallel to the arc-shaped slot 2, and then push the protective plate 5 to make the arc-shaped insert 6 enter the arc-shaped slot 2, thereby limiting and fixing the protective plate 5. When the wear-resistant lock case is in use, the lubrication layer 8 can reduce the friction between the lock cylinder and the lock case body 1, the anti-corrosion layer 9 can reduce the corrosion of the lock case body 1 by moisture and other substances, and the sound insulation layer 10 can reduce the noise generated during the unlocking process.

[0033] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A lock case with good wear resistance, comprising a lock case body (1), characterized in that: The top end of one side of the lock shell body (1) is provided with an arc-shaped insertion slot (2), one side of the lock shell body (1) is provided with a circular mounting slot (3) at a position directly below the arc-shaped insertion slot (2), a limiting column (4) is movably mounted in the circular mounting slot (3), a protective plate (5) is mounted on one side of the limiting column (4), and the protective plate (5) is located outside the lock shell body (1), and an arc-shaped insertion plate (6) is mounted on one side of the protective plate (5) near the top end of one side of the lock shell body (1).

2. The lock case with good wear resistance effect according to claim 1, characterized in that: The position and size of the arc-shaped insertion plate (6) are matched with the position and size of the arc-shaped insertion slot (2) respectively.

3. The lock case with good wear resistance effect according to claim 2, characterized in that: The protective plate (5) is provided with a pull block (7) on the side away from the lock shell body (1).

4. The lock case with good wear resistance effect according to claim 3, characterized in that: The inner side of the lock shell body (1) is provided with a lubricating layer (8), the outer side of the lubricating layer (8) is provided with a corrosion-resistant layer (9), and the outer side of the corrosion-resistant layer (9) is provided with a sound insulation layer (10).

5. The lock case with good wear resistance effect according to claim 4, characterized in that: The material of the lubricating layer (8) is lubricating grease.

6. The lock case with good wear resistance effect according to claim 5, characterized in that: The material of the corrosion-resistant layer (9) is a galvanized layer.

7. The lock case with good wear resistance effect according to claim 6, characterized in that: The material of the sound insulation layer (10) is silica gel.