Ventilation building structure
By using plug-in components to connect the fan blades and drive shaft in the ventilation building structure, the problem of dust accumulation on the fan blades and difficulty in cleaning is solved, enabling convenient disassembly and efficient cleaning of the fan blades.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG GANGSHENG HLDG GRP CO LTD
- Filing Date
- 2025-03-21
- Publication Date
- 2026-04-14
AI Technical Summary
In existing ventilation building structures, the fan blades easily accumulate dust during rotation, making cleaning time-consuming and difficult to disassemble.
The fan blades are detachably connected to the drive shaft using a plug-in assembly. The fan blades can be easily disassembled and cleaned through the cooperation of the plug-in block and the drive column.
It enables easy disassembly and cleaning of the fan blades, improving cleaning efficiency and reducing cleaning time.
Smart Images

Figure CN224120438U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ventilation structure technology, specifically to a ventilation building structure. Background Technology
[0002] In the utility model application entitled "A Ventilated Building Structure" (Announcement No. CN221724498U, Announcement Date: 2024-09-17), a building cover plate is included. A high-efficiency ventilation adjustment mechanism is provided on the top of the building cover plate. An arc-shaped baffle is rotatably connected to the top of the building cover plate and can seal the top of the ventilation duct. A connecting arm is provided between the arc-shaped baffle and the other end of the drive head, and the two are connected through the connecting arm. A dustproof net is installed at the bottom of the ventilation duct. Starting the drive motor drives the drive head to rotate, which in turn drives the connecting arm to move in a circular motion around it. This allows the arc-shaped baffle to control the opening and closing of the ventilation duct. Simultaneously, the dustproof net provides effective protection for the ventilation duct. A wind speed sensor effectively detects the external wind speed and transmits the signal to a controller, which then drives the arc-shaped baffle to operate, thereby effectively controlling the opening and closing angle.
[0003] In the prior art, including the above-mentioned ventilation mechanisms, in order to increase indoor air convection, ventilation mechanisms generally adopt structures such as fans. When the fan blades rotate, they become charged due to friction with the air, which makes it easy for dust in the air to be irradiated onto the fan blades. Therefore, the fan blades need to be cleaned regularly. However, it is difficult to disassemble the fan blades during the cleaning process, which makes cleaning the dust on the fan blades time-consuming. Utility Model Content
[0004] The purpose of this invention is to provide a ventilated building structure to address the aforementioned shortcomings of the prior art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A ventilation building structure includes a fixed frame, a drive shaft rotatably connected to the fixed frame, a fan blade detachably mounted on the drive shaft, and a plug-in assembly mounted on the fan blade for connecting the fan blade and the drive shaft.
[0007] Preferably, the plug-in assembly includes a plug-in component and a transmission component, wherein the plug-in component is used to engage the fan blade with the drive shaft, and the transmission component is connected to the plug-in component.
[0008] Preferably, the connector includes three connector blocks that are slidably connected in the radial direction of the fan blades.
[0009] Preferably, the drive shaft has a matching insertion hole at the position of each insertion block on its radial side.
[0010] Preferably, the transmission component includes a transmission column that is slidably connected in the axial direction of the fan blade, and the transmission column is connected to the fan blade by a spring.
[0011] Preferably, a limiting block is provided on the radial direction of the drive shaft at the position corresponding to each plug-in block, the limiting block has a limiting groove, and a drive pin that matches the limiting groove is fixedly connected to each plug-in block.
[0012] In the above technical solution, the present invention provides a ventilation building structure, which detachably connects the drive shaft and the fan blades through a plug-in assembly, so that when there is a lot of dust accumulated on the fan blades, the fan blades can be disassembled to clean the dust.
[0013] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.
[0014] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0016] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;
[0017] Figure 2 A schematic diagram of the fan blade and drive shaft mounting structure provided in an embodiment of this utility model;
[0018] Figure 3 This is a schematic diagram of the internal structure of the fan blade provided in an embodiment of the present utility model.
[0019] Explanation of reference numerals in the attached figures:
[0020] 1. Fixing frame; 1.1. Drive shaft; 1.10. Insertion hole; 1.2. Fan blade; 1.20. Drive column; 1.201. Limiting block; 1.2011. Drive groove; 1.21. Spring; 1.22. Insertion block; 1.220. Drive pin. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.
[0022] Reference Figure 1-3 As shown, this utility model provides a ventilation building structure, including a fixed frame 1, a drive shaft 1.1 rotatably connected to the fixed frame 1, a fan blade 1.2 detachably mounted on the drive shaft 1.1, and a plug-in assembly mounted on the fan blade 1.2 for connecting the fan blade 1.2 and the drive shaft 1.1.
[0023] The plug-in assembly includes a plug-in component and a transmission component. The plug-in component is used to snap the fan blade 1.2 into the drive shaft 1.1, and the transmission component is connected to the plug-in component.
[0024] The connector includes three plug blocks 1.22 that are slidably connected in the radial direction of the fan blade 1.2.
[0025] A matching insertion hole 1.10 is provided on the radial side of the drive shaft 1.1 at the position corresponding to each insertion block 1.22.
[0026] The transmission component includes a transmission column 1.20 that is slidably connected to the fan blade 1.2 in the axial direction, and the transmission column 1.20 is connected to the fan blade 1.2 by a spring 1.21.
[0027] A limiting block 1.201 is provided on the radial direction of the drive shaft 1.1 at the position corresponding to each plug-in block 1.22. The limiting block 1.201 has a limiting groove. A drive pin 1.220 that matches the limiting groove is fixedly connected to each plug-in block 1.22.
[0028] Specifically, such as Figure 1As shown, the fixed frame 1 is a hollow cylindrical structure with both ends open. A drive shaft 1.1 is coaxially rotatably connected to the fixed frame 1. A fan blade 1.2 is coaxially sleeved inside the drive shaft 1.1. Three insertion holes 1.10, adapted to the insertion blocks 1.22, are respectively opened on the radial direction of the drive shaft 1.1. The drive shaft 1.1 is coaxially sleeved on the central axis of the fan blade 1.2. A drive column 1.20 slides axially on the fan blade 1.2. The drive shaft 1.1 and the drive column 1.20 are connected by a spring 1.21. Three limiting blocks 1.201 are fixedly connected radially to the fan blade 1.20. Each limiting block 1.201 has a transmission groove 1.2011, which is arranged in a wedge shape. Three plug-in blocks 1.22 are slidably connected radially on the central axis of the fan blade 1.2. Each plug-in block 1.22 has a transmission pin 1.220 that matches the position of the transmission groove 1.2011. In order for the fan blade 1.2 to rotate, the fan blade 1.2 is coaxially fixedly connected to the output shaft of the motor. The motor is mounted on the fixed frame 1.
[0029] During use, when a lot of dust accumulates on the fan blade 1.2, the user can manually press the transmission column 1.20. As the transmission column 1.20 moves, it causes the spring 1.21 to extend, which in turn causes the transmission groove 1.2011 on the transmission column 1.20 to interact with the transmission pin 1.220. This causes each plug block 1.22 to move radially toward its axis in the direction of the fan blade 1.2. When each plug block 1.22 disengages from the plug holes 1.10 on the transmission shaft 1.1, the fan blade 1.2 can be pulled out of the transmission shaft 1.1, making it easier for the user to clean the fan blade 1.2.
[0030] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A ventilated building structure, comprising a fixing frame (1), characterized in that, A drive shaft (1.1) is rotatably connected to the fixed frame (1). A fan blade (1.2) is detachably mounted on the drive shaft (1.1). A plug-in assembly is provided on the fan blade (1.2). The plug-in assembly is used to connect the fan blade (1.2) and the drive shaft (1.1). The plug-in assembly includes a plug-in component and a transmission component. The plug-in component is used to snap the fan blade (1.2) and the drive shaft (1.1). The transmission component is connected to the plug-in component. The plug-in component includes three plug-in blocks (1.22) that are slidably connected in the radial direction of the fan blade (1.2). A plug-in hole (1.10) that is adapted to each plug-in block (1.22) is opened in the radial direction of the drive shaft (1.1).
2. The ventilated building structure according to claim 1, characterized in that, The transmission component includes a transmission column (1.20) that is slidably connected to the fan blade (1.2) in the axial direction, and the transmission column (1.20) and the fan blade (1.2) are connected by a spring (1.21).
3. A ventilated building structure according to claim 1, characterized in that, A limiting block (1.201) is provided on the radial side of the drive shaft (1.1) at the position corresponding to each plug block (1.22). A limiting groove is provided on the limiting block (1.201), and a drive pin (1.220) that matches the limiting groove is fixedly connected to each plug block (1.22).
Citation Information
Patent Citations
Ventilation building structure
CN221724498U