A door and window lock seat

Abstract

This utility model discloses a door and window lock base. The base has a top cover, and symmetrical limiting protrusions are provided on the top of the base near the central through hole. The top cover has symmetrical limiting grooves on its bottom near the central through hole. This utility model relates to the field of lock base technology. This door and window lock base, through the engaging and limiting of the limiting protrusions and grooves, can prevent the top cover from shifting or loosening on the base due to prolonged handle rotation.

Description

Technical Field

[0001] This utility model relates to the field of lock seat technology, specifically a door and window lock seat. Background Technology

[0002] A door and window lock seat is a component installed on the door and window frame to work with locks to achieve the functions of fixing and locking. It is an important part of the door and window hardware system and usually works in conjunction with accessories such as lock bodies and handles.

[0003] The lock seat consists of a base and a top cover. The installation between the top cover and the base is to put the top cover on the base, then put the handle on the top cover and fix the handle with screws. In this way, the handle will hold the top cover in place and thus complete the fixation. However, if the installation is only done by squeezing, the handle and the lock seat are prone to loosening during the long-term rotation of the handle, which will cause the top cover to easily shift and loosen. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a door and window lock seat that solves the problem that when the handle is installed by simply pressing, it is easy for the handle and the lock seat to become loose during long-term rotation, which can lead to the top cover shifting and loosening.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a door and window lock base, including a base, a top cover is provided on the top of the base, a limiting protrusion is symmetrically provided on the top of the base near the central through hole, and a limiting groove is symmetrically provided on the bottom of the top cover near the central through hole.

[0006] Preferably, the top cover fits onto the top of the base, and the limiting boss and the limiting groove fit together.

[0007] Preferably, the top of the top cover is provided with a handle, which is aligned with the through hole between the top cover and the base.

[0008] Preferably, the surface of the base has symmetrically arranged screw holes.

[0009] This utility model provides a door and window lock base. Compared with the prior art, it has the following advantages:

[0010] The door and window lock seat uses a limiting boss surface that matches the inner cavity of the limiting groove. This way, the limiting boss is locked in the limiting groove without protruding, allowing the top cover to fit snugly on the base. Therefore, by using the limiting boss and limiting groove to lock in place, the top cover can be prevented from shifting or loosening on the base due to prolonged rotation of the handle. Attached Figure Description

[0011] Figure 1This is a top view of the structure of this utility model;

[0012] Figure 2 This is a bottom view of the structure of this utility model;

[0013] Figure 3 This is a top-view disassembled schematic diagram of the structure of this utility model;

[0014] Figure 4 This is a bottom-view, disassembled schematic diagram of the structure of this utility model.

[0015] In the diagram: 1. Handle; 2. Base; 21. Limiting boss; 3. Top cover; 31. Limiting groove. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-4 This utility model provides a technical solution: a door and window lock base, including a base 2, a top cover 3 on the top of the base 2, symmetrically arranged limiting protrusions 21 on the top of the base 2 near the central through hole, and symmetrically arranged limiting grooves 31 on the bottom of the top cover 3 near the central through hole. The top cover 3 covers the top of the base 2, and the limiting protrusions 21 and the limiting grooves 31 fit together. A handle 1 is provided on the top of the top cover 3, and is aligned with the through hole between the top cover 3 and the base 2. The through hole between the base 2 and the top cover 3 is used for mounting the bottom of the handle 1. The holes are aligned, and the handle 1 is connected by screws through the through holes, so that the handle 1 and the base 2 are installed on the lock body, and the handle 1 rests against the top cover 3. The limiting boss 21 and the limiting groove 31 are semi-circular in shape, and the surface of the limiting boss 21 matches the inner cavity of the limiting groove 31. Thus, the limiting boss 21 is locked in the limiting groove 31 without protruding, so that the top cover 3 can fit against the base 2. Therefore, by limiting the locking of the limiting boss 21 and the limiting groove 31, the phenomenon of the top cover 3 shifting and loosening on the base 2 due to the long-term rotation of the handle 1 can be avoided.

[0018] Furthermore, screw holes are symmetrically provided on the surface of the base 2, and screws are inserted through the screw holes to install the base 2 with the lock body.

[0019] During operation or use, the top cover 3 is placed on the surface of the base 2, and then the limiting groove 31 is matched and limited by the limiting boss 21, so that the top cover 3 is attached to the base 2. Then the handle 1 is placed against the top cover 3, and finally the base 2 is installed on the lock body. The handle 1 is installed by passing screws through the base 2 and the top cover 3 to connect them. The limiting boss 21 and the limiting groove 31 are engaged and limited, which can prevent the top cover 3 from shifting and loosening on the base 2 due to the long-term rotation of the handle 1.

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0021] 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 lock escutcheon for doors and windows, comprising a base (2), characterized in that: The top of the base (2) is provided with a top cover (3), and the top of the base (2) and close to the position of the middle through hole is symmetrically provided with a limiting boss (21), and the bottom of the top cover (3) and close to the position of the middle through hole is symmetrically provided with a limiting recess (31).

2. A lock keeper according to claim 1, wherein: The top cover (3) is covered on the top of the base (2), and the limiting boss (21) and the limiting recess (31) are matched with each other.

3. A lock keeper according to claim 1, wherein: The top of the top cover (3) is provided with a handle (1), and the handle (1) is aligned with the through hole in the middle of the top cover (3) and the base (2).

4. A lock keeper according to claim 1, wherein: The surface of the base (2) is symmetrically provided with a screw hole.

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