High-strength square shaft rocker arm

Abstract

The utility model belongs to the technical field of door and window fastener accessories, and particularly relates to a high-strength square shaft rocker arm which comprises a rocker arm body which is divided into a connecting end and a swinging end. The connecting end is in a flat cylinder shape and is provided with a square through hole; the swinging end is of an arm-shaped structure formed by outwards extending the connecting end; the rocker arm is simple in structure, can be accurately matched with a square shaft and other components, ensures the stability and accuracy of connection, prevents the rocker arm from relatively rotating or displacing in the working process, improves the deformation resistance of the rocker arm when bearing large load, and ensures that the rocker arm can keep stable shape and performance in the working process.

Description

Technical Field

[0001] This utility model belongs to the technical field of door and window locking device accessories, specifically relating to a high-strength square shaft rocker arm. Background Technology

[0002] A rocker arm is a type of door and window locking accessory and an important component of the door and window hardware system. Its main function is to enable the locking and opening of doors and windows.

[0003] The existing rocker arm structure has poor rigidity, and the central through hole is circular, resulting in low torsional strength. When paired with an irregularly shaped circular shaft, it is prone to slippage and cannot be locked with the transmission device, thus affecting the locking and opening states of the rocker arm. Utility Model Content

[0004] The purpose of this invention is to provide a high-strength square shaft rocker arm.

[0005] Includes a rocker arm body, which is divided into a connecting end and a swinging end;

[0006] The connecting end is a flat cylindrical shape and has a square through hole;

[0007] The swing end is an arm-shaped structure extending outward from the connecting end.

[0008] Preferably, an arc-shaped groove is provided at the junction of the connecting end and the swing end.

[0009] Preferably, the arc-shaped slot is provided with reinforcing ribs on both sides.

[0010] Preferably, the square through hole has chamfered corners at the side wall bends and edges.

[0011] Preferably, the sidewall of the square through hole has a frosted surface.

[0012] Preferably, the top of the swing end away from the connecting end has an arc-shaped structure.

[0013] The beneficial effects of this utility model are:

[0014] The square through-holes allow for precise fit with components such as square shafts, ensuring the stability and accuracy of the connection and preventing relative rotation or displacement of the rocker arm during operation. Reinforcing ribs are installed on both sides of the arc-shaped groove, further enhancing the structural strength of the connection between the connecting end and the swing end, and improving the rocker arm's resistance to deformation under heavy loads. During operation, the chamfer reduces stress concentration, preventing problems such as through-hole cracking caused by stress concentration, and extending the rocker arm's service life.

[0015] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.

[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this utility model;

[0019] Figure 2 This is a side view of an embodiment of the present invention;

[0020] Figure 3 This is a cross-sectional structural diagram of the working state of an embodiment of this utility model.

[0021] In the picture:

[0022] 1. Rocker arm body; 2. Connecting end; 3. Swinging end; 4. Square through hole; 5. Arc-shaped groove; 6. Reinforcing rib; 7. Transmission device. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] like Figures 1 to 3As shown, this embodiment provides a high-strength square-shaft rocker arm, including a rocker arm body 1, which is divided into a connecting end 2 and a swing end 3. The connecting end 2 is a flat cylindrical shape. This flat cylindrical structure ensures a certain connection strength while better adapting to the installation space and reducing interference with other components. It has a square through hole 4, which precisely matches the square shaft, ensuring the stability and accuracy of the connection and preventing relative rotation or displacement of the rocker arm during operation. The swing end 3 is an arm-like structure extending outward from the connecting end 2. The connecting end focuses on connecting with components such as the square shaft, while the swing end is used to realize the swing function of the rocker arm. The structure is clear, and the functional areas are well-defined, which helps improve the overall performance and reliability of the rocker arm.

[0025] An arc-shaped groove 5 is provided at the junction of the connecting end 2 and the swing end 3. Reinforcing ribs 6 are provided on both sides of the arc-shaped groove 5. Figure 3 As shown in the assembly drawing, the transmission device 7 in the door and window locking device is locked in the arc-shaped slot 5 during operation. The reinforcing ribs 6 on both sides improve the strength and stability of the stressed parts, increase the resistance of the swing end 3 to deformation when subjected to large loads, ensure that the rocker arm can maintain a stable shape and performance during operation, and effectively prevent the rocker arm from being damaged due to insufficient strength at the connection.

[0026] The square through-hole has chamfered corners at the four side wall bends and edges. This reduces wear on components such as the square shaft during installation, lowers installation difficulty, and improves installation efficiency. On the other hand, during rocker arm operation, the chamfer reduces stress concentration, preventing problems such as through-hole cracking caused by stress concentration, and extending the service life of the rocker arm.

[0027] The sidewall of the square through hole 4 is frosted, which increases the friction between the through hole and components such as the square shaft, making the connection more secure.

[0028] The top of the swing end 3, away from the connecting end 2, has an arc-shaped structure. This makes the swing end 3 swing more smoothly, reduces friction and collision with other components, and lowers noise and energy loss. At the same time, the arc-shaped structure also has a certain aesthetic appeal, making the overall appearance of the rocker arm more harmonious.

[0029] All the devices selected in this application (parts whose specific structures are not specified) are general standard parts or parts known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0030] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A high-strength square shaft rocker arm, characterized in that: It includes a rocker arm body (1), which is divided into a connecting end (2) and a swing end (3). The connecting end (2) is a flat cylindrical shape and has a square through hole (4). The swing end (3) is an arm-shaped structure extending outward from the connecting end (2).

2. The high-strength square shaft rocker arm according to claim 1, characterized in that: An arc-shaped groove (5) is provided at the junction of the connecting end (2) and the swing end (3).

3. The high-strength square shaft rocker arm according to claim 2, characterized in that: The arc-shaped slot (5) is provided with reinforcing ribs (6) on both sides.

4. The high-strength square shaft rocker arm according to claim 1, characterized in that: The square through hole (4) has chamfers at the corners of its side walls and at its edges.

5. The high-strength square shaft rocker arm according to claim 1, characterized in that: The sidewall of the square through hole (4) has a frosted surface.

6. The high-strength square shaft rocker arm according to claim 1, characterized in that: The top of the swing end (3) away from the connecting end (2) has an arc-shaped structure.

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