Composite metal handle

By designing a composite metal handle, combining a steel handle rod and a zinc alloy handle sleeve, the problems of heavy weight and insufficient rigidity of the outer handle are solved, achieving an aesthetically pleasing, lightweight, and stable connection.

CN223867768UActive Publication Date: 2026-02-03DONGGUAN GUANHUI HARDWARE
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Patent Information

Application Number
CN202520451432.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-14
Publication Date
2026-02-03
Estimated Expiration
2035-03-14

AI Technical Summary

Technical Problem

The existing external handles are made of a single material, which leads to problems such as excessive weight, insufficient hardness, or easy deformation during long-term use, making it difficult to balance aesthetics, weight reduction, and strength.

Method used

It adopts a composite metal structure, with the handle and pull sleeve made of different materials and integrated design. The pull sleeve has a molded texture or pattern, and a stable connection is achieved through the mounting sleeve and connecting screw.

Benefits of technology

It achieves both aesthetic appeal and weight reduction while ensuring the strength and rigidity of the handle, resulting in a stable connection that is not easily twisted excessively.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of door handles, in particular to a composite metal handle which comprises a handle rod and handle sleeves at the two ends of the handle rod, the handle rod and the handle sleeves are of an integrated structure, textures or patterns are formed on the handle sleeves, the handle sleeves are matched with mounting sleeves, and the other ends of the mounting sleeves are disc-shaped. A mounting screw hole is formed in the disc-shaped end of the mounting sleeve, and mounting of the mounting sleeve is achieved through matching of a mounting bolt and the mounting screw hole. According to the composite metal handle, the handle sleeves integrated with the handle rod are arranged at the two ends of the handle rod, the handle rod and the handle sleeves can be made of different materials through the structure, texture structures are formed on the handle sleeves, and therefore the composite metal handle is attractive, the weight is reduced, and meanwhile the strength and hardness of the handle part are guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of door handles, and in particular to a composite metal handle. Background Technology

[0002] Door handles are a common structure widely used in various types of doors. They come in many varieties, including long handles, short handles, recessed handles, and external handles. The simplest type is the external handle, which generally consists of a handle rod and two mounting sleeves. The mounting sleeves are bolted to the door, cabinet, or drawer.

[0003] Existing external handles are generally made of a single material, such as steel or zinc alloy. However, single materials have certain drawbacks when used for a long time. For example, steel has high hardness and strength, but it is heavy overall and generally cannot be directly molded into patterns or textures. Zinc alloy has good toughness and ductility, and can be die-cast to obtain complex patterns or textures, but its strength and hardness are insufficient, and it is prone to deformation when pulled outward. Therefore, there is an urgent need to design a composite handle that takes into account aesthetics, reduces weight, and ensures the strength and hardness of the handle part. Utility Model Content

[0004] The purpose of this invention is to provide a composite metal handle with integrated handle sleeves at both ends of the handle rod. This structure allows the handle rod and handle sleeves to be made of different materials, with a textured structure formed on the handle sleeves. This achieves a balance between aesthetics, weight reduction, and strength and rigidity of the handle.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a composite metal handle, including a handle rod and handle sleeves at both ends of the handle rod, wherein the handle rod and handle sleeves are an integral structure, the handle sleeves are formed with textures or patterns, the handle sleeves are fitted with mounting sleeves, the other end of the mounting sleeves is disc-shaped, and one end of the disc-shaped mounting sleeves is provided with mounting screw holes, and the mounting sleeves are installed by the cooperation of mounting bolts with mounting screw holes.

[0006] Preferably, both ends of the handle are inserted into the handle sleeve.

[0007] Preferably, the side of the handle rod that is inserted into the handle sleeve has a notch.

[0008] Preferably, the pull sleeve has an installation hole that fits the mounting sleeve with a clearance, and both the pull sleeve and the mounting sleeve have threaded holes at their mating parts, and are connected by a connecting screw.

[0009] Preferably, the middle part of the connecting screw is a tapered flange, and the threaded hole port on the pull sleeve and the mounting sleeve is tapered to mate with the tapered flange.

[0010] The technical effects of this utility model are as follows:

[0011] 1. Install integrated handle sleeves at both ends of the handle. This structure allows the handle and handle sleeves to be made of different materials, with textured structures formed on the handle sleeves. This achieves a balance between aesthetics, weight reduction, and strength and rigidity of the handle.

[0012] 2. Insert the end of the handle into the handle sleeve and make a notch at the end of the handle to ensure a stable connection when the handle and the handle sleeve are integrated.

[0013] 3. The threaded rod and its tapered flange design ensure a secure connection between the pull sleeve and the mounting sleeve without over-tightening. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of a composite metal handle.

[0015] Figure 2 This is a top view of a composite metal handle.

[0016] Figure 3 for Figure 2 Sectional view of AA.

[0017] Figure 4 This is a partial schematic diagram of the mating parts of the handle, pull sleeve, and mounting sleeve.

[0018] The text labels shown in the diagram are: 1. Handle bar; 2. Handle sleeve; 3. Mounting sleeve; 4. Mounting screw hole; 5. Connecting screw; 6. Mounting socket. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way. Example 1

[0020] like Figure 1-2 As shown, this embodiment discloses a composite metal handle, characterized in that it includes a handle rod 1 and handle sleeves 2 at both ends of the handle rod 1, and the handle rod 1 and handle sleeves 2 are an integral structure. The handle sleeves 2 are formed with textures or patterns. The handle sleeves 2 are fitted with mounting sleeves 3. The other end of the mounting sleeves 3 is disc-shaped, and a mounting screw hole 4 is opened at one end of the disc-shaped end of the mounting sleeves 3. The mounting sleeves 3 are installed by the cooperation of the mounting bolts with the mounting screw holes 4.

[0021] The core innovation of this application lies in the integrated design of the handle rod 1 and the handle sleeve 2. Specifically, the handle rod can be made of steel, while the handle sleeve 2 can be made of zinc alloy. The handle rod is placed into a die-casting mold of zinc alloy, thus achieving the integration of the handle rod 1 and the handle sleeve 2. Patterns or textures are die-cast on the handle sleeve 2 to enhance the aesthetics of the composite metal handle. Then, the mounting sleeve 3 is connected to the handle sleeve 2. Finally, the handle can be installed on the door panel or cabinet simply by using mounting bolts to engage with the mounting screw holes 4 in the mounting sleeve 3. Example 2

[0022] like Figure 3-4 As shown, compared to Embodiment 1, in this embodiment, both ends of the handle 1 are inserted into the handle sleeve 2, and the side of the part of the handle 1 inserted into the handle sleeve 2 has a notch.

[0023] The design of this embodiment ensures a more stable connection between the handle rod 1 and the handle sleeve 2 when they are integrally die-cast. Example 3

[0024] like Figure 4 As shown, compared to Embodiment 2, the pull glove 2 in this embodiment has an installation hole 6 that fits with the installation sleeve 3 with a clearance, and both the pull glove 2 and the installation sleeve 3 have threaded holes at their mating parts, and are connected by a connecting screw 5. The middle part of the connecting screw 5 is a tapered flange, and the threaded hole ports on the pull glove 2 and the installation sleeve 3 are tapered and fit with the tapered flange.

[0025] The specific connection between the pull sleeve 2 and the mounting sleeve 3 is as follows: First, screw one end of the connecting screw 5 into the threaded hole of the mounting sleeve 3, and make the lower part of the tapered flange engage with the tapered part of the threaded hole on the mounting sleeve 3 to prevent further tightening. Then, insert the other end of the connecting screw 5 into the threaded hole of the pull sleeve 2, and screw the threaded rod completely into this threaded hole until the tapered part engages with the tapered flange to prevent further tightening. The clearance fit between the mounting insertion hole 6 and the mounting sleeve 3 will not affect the overall tightening of the mounting sleeve and the threaded rod.

[0026] It should be noted that, in this document, 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 process, method, article, or apparatus.

[0027] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A composite metal handle, characterized in that, Includes a handle (1) and handle sleeves (2) at both ends of the handle (1), and the handle (1) and handle sleeves (2) are an integral structure. The handle sleeves (2) are formed with textures or patterns. The handle sleeves (2) are fitted with mounting sleeves (3). The other end of the mounting sleeves (3) is disc-shaped, and the disc-shaped end of the mounting sleeves (3) is provided with mounting screw holes (4). The mounting sleeves (3) are installed by fitting mounting bolts with mounting screw holes (4).

2. The composite metal handle according to claim 1, characterized in that, The two ends of the handle (1) are inserted into the handle sleeve (2).

3. A composite metal handle according to claim 2, characterized in that, The part of the handle (1) that is inserted into the handle sleeve (2) has a notch on its side.

4. A composite metal handle according to any one of claims 1-3, characterized in that, The pull glove (2) has an installation hole (6) that fits the mounting sleeve (3) with a clearance, and the pull glove (2) and the mounting sleeve (3) are both provided with threaded holes and are connected by a connecting screw (5).

5. A composite metal handle according to claim 4, characterized in that, The middle part of the connecting screw (5) is a tapered flange, and the threaded hole ports on the pull sleeve (2) and the mounting sleeve (3) are tapered to match the tapered flange.