A lifting window gear seat structure

Abstract

This utility model discloses a lift window gear seat structure, including a frame with a mounting hole in the middle. A bearing is fixedly installed in the mounting hole by a retaining spring. A rotating shaft passes through the inner ring of the bearing, and sprockets are symmetrically arranged in the middle of the rotating shaft. This utility model relates to the field of door and window hardware technology. This lift window gear seat structure, by fixing the bearing with a retaining spring, effectively prevents its axial movement, improving the stability and lifespan of the drive shaft. The integrated design of the outer cover and drive motor facilitates installation and maintenance, and the overall structure is compact and provides good protection.

Description

Technical Field

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

[0002] Existing lift-up window systems are widely used in various types of buildings due to their high opening rate and good ventilation. Their core transmission mechanism typically consists of a motor driving a gear base, which in turn drives a chain via a sprocket, thus achieving the lifting and lowering movement of the window sash. Therefore, the reliability, stability, and integration of the gear base structure directly determine the performance and service life of the entire lift-up window system.

[0003] Currently, the common gear seat structures for lift windows on the market have the following shortcomings: First, in terms of bearing fixing, most products rely solely on simple interference fits or simple retaining rings. Under conditions of frequent forward and reverse starting and stopping of the motor, the bearings are prone to axial movement. This movement leads to inaccurate meshing between the sprocket and chain, generating noise and wear. In severe cases, it can even cause tooth skipping or chain slippage, resulting in window sash jamming and posing a safety hazard. Second, existing gear seat structures often do not adequately consider the integrated installation of the drive motor. The motor is usually a separate component, requiring on-site alignment, fixing, and connection. The installation process is cumbersome, demands high technical skills from installers, and the connection between the motor and the gear seat is usually exposed and lacks protection. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a lifting window gear seat structure that can effectively limit the axial movement of the bearing, improve transmission stability, and facilitate the installation and maintenance of the drive motor.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a lifting window gear seat structure, including a frame, a mounting hole is provided in the middle of the frame, a bearing is fixedly installed in the mounting hole by a snap ring, a rotating shaft is passed through the inner ring of the bearing, and sprockets are symmetrically arranged in the middle of the rotating shaft.

[0006] Preferably, the surface of the sprocket is engaged with a chain for transmitting power and driving the window sash to rise and fall.

[0007] Preferably, the side of the frame is fixedly covered by an outer cover in a detachable manner, which serves as a connection and protection function.

[0008] Preferably, the outer cover is externally and detachably fixed with a drive motor to provide power input.

[0009] Preferably, the output end of the drive motor and the connection end of the rotating shaft are fixedly connected by a keyway or coupling to ensure reliable power transmission.

[0010] Preferably, the mounting hole has a retaining groove for accommodating the retaining ring, for mounting the retaining ring.

[0011] This utility model provides a lifting window gear seat structure. Compared with the prior art, it has the following advantages: 1. The lifting window gear seat structure uses a snap ring to fix the bearing, effectively preventing axial movement and improving the stability and lifespan of the drive shaft.

[0012] 2. The lifting window gear seat structure, through the integrated design of the outer cover and drive motor, facilitates installation and maintenance, and has a compact overall structure and good protection. Attached Figure Description

[0013] Figure 1 This is a complete structural schematic diagram of the present utility model; Figure 2 This is a partial schematic diagram of the structure of this utility model; Figure 3 This is a schematic diagram of the gear seat structure of this utility model; Figure 4 This is a disassembled schematic diagram of the gear seat structure of this utility model.

[0014] In the diagram: 1. Frame; 2. Outer cover; 3. Rotating shaft; 4. Sprocket; 5. Bearing; 6. Snap ring. Detailed Implementation

[0015] 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.

[0016] Please see Figures 1 to 4 This utility model provides a technical solution: a lifting window gear seat structure, including a frame 1, which is typically made of die-cast or machined metal material and has sufficient structural strength. A mounting hole is precisely machined in the center of the frame 1, and an annular retaining ring groove is formed on the inner wall of the mounting hole. A retaining ring 6 (preferably a retaining ring for the hole) is fitted into the retaining ring groove.

[0017] The bearing 5 (deep groove ball bearing or sliding bearing) is pressed in from one side of the mounting hole until its outer end face is firmly held against by the retaining spring 6, thereby effectively preventing axial movement of the bearing 5 during operation. A rotating shaft 3, made of stainless steel or high-strength alloy steel, is inserted through the inner ring of the bearing 5 with an interference fit or clearance fit. Two symmetrically distributed sprockets 4 are fixedly mounted in the middle of the rotating shaft 3 via a key connection (or spline, press fitting, etc.). The teeth of the sprockets 4 are adapted to the chain used in the lifting window system, and the two mesh with each other to transmit power.

[0018] The outer cover 2 is detachably installed on the side of the frame 1 by multiple bolts. To improve the protection level, a sealing ring (not shown in the figure) can be installed at the joint between the outer cover 2 and the frame 1. A drive motor (generally a micro geared motor) is fixedly installed on the outside of the outer cover 2 by screws. The output end of the drive motor is coaxially fixedly connected to the connecting end of the rotating shaft 3 through a coupling (or through a key and a keyway at the end of the rotating shaft 3) to ensure efficient and reliable power transmission.

[0019] During assembly, first press the bearing 5 into the mounting hole of the frame 1, then install the snap ring 6 into the snap ring groove 6a, using the elastic tension of the snap ring 6 to restrict the axial freedom of the bearing 5. Next, pass the rotating shaft 3 with the sprocket 4 already installed through the inner ring of the bearing 5. Then, wrap the chain around the sprocket 4. After that, fasten the outer cover 2 to the side of the frame 1 with bolts. Finally, fix the drive motor to the outer cover 2 and reliably connect its output shaft to the end of the rotating shaft 3 to complete the assembly of the entire gear seat.

[0020] During operation, the drive motor starts, causing the rotating shaft 3 to rotate, which in turn drives the sprocket 4 fixed on it to rotate synchronously. The sprocket 4 meshes with the chain, converting the rotational motion of the motor into the linear motion of the chain, thereby driving the window sash connected to the chain to achieve a smooth and reliable lifting or lowering action. This utility model has a compact structure, reliable axial positioning, good protection, and is easy to install and maintain the drive unit, significantly improving the service life and operational stability of the lifting window system.

[0021] 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.

[0022] 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 lifting window gear seat structure, comprising a frame (1), characterized in that: The frame (1) has a mounting hole in the middle, and a bearing (5) is fixedly installed in the mounting hole by a snap ring (6). A rotating shaft (3) passes through the inner ring of the bearing (5), and a sprocket (4) is symmetrically arranged in the middle of the rotating shaft (3).

2. The lifting window gear seat structure according to claim 1, characterized in that: The outer cover (2) is fixedly installed on the side of the frame (1) in a detachable manner.

3. The lifting window gear seat structure according to claim 2, characterized in that: The outer cover (2) is externally and detachably fixed with a drive motor.

4. The lifting window gear seat structure according to claim 3, characterized in that: The output end of the drive motor is connected to the end of the rotating shaft (3) by a coupling or keyway.

5. The lifting window gear seat structure according to claim 1, characterized in that: The surface of the sprocket (4) is engaged with a chain.

6. The lifting window gear seat structure according to claim 1, characterized in that: The mounting hole has a retaining groove for accommodating the retaining ring (6).

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