Adjustable diffuser convenient for wind pressure adjustment
By introducing a rotating rod, gears, and a servo motor-driven transmission mechanism into the diffuser, the problem of inconvenient adjustment and maintenance of diffuser blades is solved, enabling convenient adjustment of wind pressure and rapid blade replacement, thus improving work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-03-31
AI Technical Summary
The blades and disc of the existing diffuser are an integral structure, which makes it inconvenient to adjust the air pressure, and the whole unit needs to be replaced when the blades are damaged, which affects the working efficiency.
An adjustable diffuser was designed, which adopts a transmission mechanism driven by a rotating rod, gears and a servo motor. The servo motor drives the gears and gear ring to rotate, thereby realizing the rotation adjustment of the blade assembly. The blades can be quickly fixed or released by the screw and handle, which is convenient for replacement.
It enables convenient adjustment of wind pressure and quick replacement of blades, improving the maintenance and working efficiency of the diffuser.
Smart Images

Figure CN224064574U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of diffuser technology, specifically to an adjustable diffuser that facilitates wind pressure regulation. Background Technology
[0002] The diffuser converts the kinetic energy of gas into static pressure energy, and the disk blades play a crucial role in this process. By guiding the airflow within the diffuser and utilizing changes in the flow cross-sectional area, the disk blades gradually reduce the airflow velocity, thereby effectively converting kinetic energy into static pressure energy and increasing the gas pressure.
[0003] In the process of realizing this utility model, the inventors discovered the following problems with the existing technology: 1. In the use of existing diffusers, the blades and the disk are usually an integral structure, which makes it inconvenient to adjust the blades, and thus inconvenient to adjust the wind pressure; 2. In the use of existing diffusers, when the blades are damaged, the entire diffuser needs to be replaced, which is time-consuming and labor-intensive, and affects the efficiency of the work. Utility Model Content
[0004] The purpose of this utility model is to provide an adjustable diffuser that facilitates wind pressure regulation, thereby solving the problems of inconvenient adjustment and maintenance of diffusers mentioned in the background art. To achieve the above objective, this utility model provides the following technical solution: an adjustable diffuser that facilitates wind pressure regulation, comprising a body, a rotating rod rotatably connected to the inner wall of the body, a blade assembly mounted on the outer wall of the rotating rod, a first gear mounted at the bottom end of the rotating rod, a gear ring rotatably connected to the inner wall of the body, and a transmission assembly mounted on the outer wall of the gear ring.
[0005] The blade assembly includes a connecting block mounted on the outer wall of the rotating rod, a screw and a blade body are mounted on the inner wall of the connecting block, and a handle is mounted on one side surface of the screw.
[0006] The transmission assembly includes a second gear mounted on the outer wall of the gear ring, a drive rod mounted on the inner wall of the second gear, a servo motor mounted on one end of the drive rod, and a mounting base mounted on the bottom surface of the servo motor.
[0007] More preferably, the inner wall of the connecting block is provided with a T-shaped insert, and both sides of the outer wall of the blade body are provided with slots whose internal dimensions are consistent with the external dimensions of the T-shaped insert.
[0008] More preferably, a fixing groove with an internal size structure that matches the external size structure of the screw is formed on one side surface of the blade body, and the handle and the screw form a helical transmission mechanism.
[0009] More preferably, a vibration damping pad is provided at the connection between the blade body and the connecting block.
[0010] More preferably, the servo motor forms a transmission mechanism with the second gear via a drive rod, and the outer wall of the gear ring is provided with a first annular toothed track that matches the external dimensions of the second gear.
[0011] More preferably, the inner wall of the gear ring is provided with a second annular gear track that matches the outer dimensions of the first gear.
[0012] More preferably, the blade body has a total of fifteen blades, and the blade bodies are symmetrical about the central axis of the body.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] This invention employs an easily adjustable design. The servo motor can then be started, driving the second gear to rotate via a drive rod. The second gear meshes with the first annular toothed rail, causing the toothed ring to rotate. When the toothed ring rotates, it meshes with the first gear via the second annular toothed rail, causing the rotating rod to rotate and thus adjusting the rotation of the blade assembly, thereby achieving the required adjustment of wind pressure.
[0015] This invention features a maintenance-friendly design. After the blade body and connecting block are inserted and installed, the fixing groove is located directly below the screw. The handle can be rotated to rotate the screw and insert it into the fixing groove, which can quickly fix the blade body. Conversely, the fixing of the blade body can be released, which facilitates the quick replacement of damaged blade bodies and effectively improves maintenance efficiency. Attached Figure Description
[0016] Figure 1 This is a front view structural diagram of the present invention;
[0017] Figure 2 This is a schematic diagram of the structure of this utility model from below;
[0018] Figure 3 This is an exploded magnified structural diagram of the blade assembly of this utility model;
[0019] Figure 4 This is an enlarged structural schematic diagram of the transmission component of this utility model.
[0020] In the diagram: 1. Body; 2. Rotating rod; 3. Blade assembly; 301. Connecting block; 302. Screw; 303. Blade body; 304. Handle; 4. First gear; 5. Gear ring; 6. Transmission assembly; 601. Second gear; 602. Drive rod; 603. Servo motor; 604. Mounting base. Detailed Implementation
[0021] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figures 1 to 4 This utility model provides a technical solution: an adjustable diffuser that facilitates wind pressure adjustment, including a body 1, a rotating rod 2 rotatably connected to the inner wall of the body 1, a blade assembly 3 installed on the outer wall of the rotating rod 2, a first gear 4 installed at the bottom end of the rotating rod 2, a gear ring 5 rotatably connected to the inner wall of the body 1, and a transmission assembly 6 installed on the outer wall of the gear ring 5.
[0023] The blade assembly 3 includes a connecting block 301 mounted on the outer wall of the rotating rod 2. A screw 302 and a blade body 303 are mounted on the inner wall of the connecting block 301. A handle 304 is mounted on one side surface of the screw 302.
[0024] The transmission assembly 6 includes a second gear 601 mounted on the outer wall of the gear ring 5, a drive rod 602 mounted on the inner wall of the second gear 601, a servo motor 603 mounted on one end of the drive rod 602, and a mounting base 604 mounted on the bottom surface of the servo motor 603.
[0025] In this embodiment, as Figure 3 As shown, the inner wall of the connecting block 301 is provided with a T-shaped insert, and both sides of the outer wall of the blade body 303 are provided with slots whose internal dimensions and structures are consistent with the external dimensions and structures of the T-shaped insert. This design facilitates the quick connection, installation and separation of the blade body 303 with the connecting block 301 through the slots and the T-shaped insert.
[0026] In this embodiment, as Figure 3 As shown, a fixing groove with internal dimensions matching the external dimensions of the screw 302 is provided on one side surface of the blade body 303, and the handle 304 and the screw 302 form a helical transmission mechanism. With this design, when the blade body 303 is inserted and installed with the connecting block 301, the fixing groove is located directly below the screw 302. The handle 304 can be rotated to rotate the screw 302 and insert it into the fixing groove, which can quickly fix the blade body 303. Conversely, the fixing of the blade body 303 can be released, which facilitates the quick replacement of damaged blade bodies 303 and effectively improves maintenance efficiency.
[0027] In this embodiment, as Figure 3 As shown, a vibration damping pad is provided at the connection between the blade body 303 and the connecting block 301; the vibration damping pad can be used to reduce vibration.
[0028] In this embodiment, as Figure 4 As shown, the servo motor 603 forms a transmission mechanism with the second gear 601 via the drive rod 602, and the outer wall of the gear ring 5 is provided with a first annular toothed rail that matches the external dimensions of the second gear 601. With this design, the servo motor 603 can be started, and the second gear 601 can be driven to rotate via the drive rod 602. The second gear 601 meshes with the first annular toothed rail, which can drive the gear ring 5 to rotate.
[0029] In this embodiment, as Figure 2 As shown, the inner wall of the gear ring 5 is provided with a second annular toothed rail that matches the outer dimensions of the first gear 4. With this design, when the gear ring 5 rotates, it meshes with the first gear 4 through the second annular toothed rail, which can drive the rotating rod 2 to rotate, thereby adjusting the blade assembly 3 according to the wind pressure adjustment requirements.
[0030] In this embodiment, as Figure 1 As shown, there are fifteen blade bodies 303, and the blade bodies 303 are symmetrical about the central axis of the device 1. Through this design, the pressure can be effectively increased, the airflow can be controlled, and the efficiency can be improved through the blade bodies 303.
[0031] The usage and advantages of this utility model: This adjustable diffuser, which facilitates wind pressure regulation, operates as follows:
[0032] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, firstly, the blade body 303 is inserted and installed into the connecting block 301. At this time, the fixing groove of the blade body 303 is located directly below the screw 302. By rotating the handle 304, the screw 302 is rotated and inserted into the fixing groove, which can quickly fix the blade body 303. Conversely, the fixing of the blade body 303 can be released, which facilitates the quick replacement of the damaged blade body 303. Then, the servo motor 603 can be started, which drives the second gear 601 to rotate through the drive rod 602. The second gear 601 meshes with the first annular toothed rail, which can drive the toothed ring 5 to rotate. When the toothed ring 5 rotates, it meshes with the first gear 4 through the second annular toothed rail, which can drive the rotating rod 2 to rotate, thereby adjusting the rotation of the blade assembly 3 to meet the needs of wind pressure adjustment.
[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An adjustable diffuser for facilitating wind pressure adjustment, comprising a body (1), characterized in that: The inner wall of the device body (1) is rotationally connected with a rotating rod (2), the outer wall of the rotating rod (2) is installed with a vane assembly (3), the bottom end of the rotating rod (2) is installed with a first gear (4), the inner wall of the device body (1) is rotationally connected with a gear ring (5), the outer wall of the gear ring (5) is installed with a transmission assembly (6). The vane assembly (3) comprises a connecting block (301) installed on the outer wall of the rotating rod (2), the inner wall of the connecting block (301) is installed with a screw rod (302) and a vane body (303), one side surface of the screw rod (302) is installed with a handle (304). The transmission assembly (6) comprises a second gear (601) installed on the outer wall of the gear ring (5), the inner wall of the second gear (601) is installed with a drive rod (602), one end of the drive rod (602) is installed with a servo motor (603), the bottom surface of the servo motor (603) is installed with a mounting seat (604).
2. An adjustable diffuser for ease of wind pressure adjustment as claimed in claim 1 wherein: The inner wall of the connecting block (301) is provided with a T-shaped plug, and the outer wall of the vane body (303) is provided with a slot on both sides, the internal size structure of which is consistent with the external size structure of the T-shaped plug.
3. An adjustable diffuser for ease of wind pressure adjustment according to claim 2, characterized in that: One side surface of the vane body (303) is provided with a fixing groove, the internal size structure of which is consistent with the external size structure of the screw rod (302), and the handle (304) and the screw rod (302) constitute a screw transmission mechanism.
4. An adjustable diffuser for ease of wind pressure adjustment according to claim 3, characterized in that: The connecting portion of the vane body (303) and the connecting block (301) is provided with a damping gasket.
5. The adjustable diffuser for ease of wind pressure adjustment of claim 1, wherein: The servo motor (603) and the second gear (601) constitute a transmission mechanism through the drive rod (602), and the outer wall of the gear ring (5) is provided with a first annular tooth track, the external size of which is consistent with that of the second gear (601).
6. An adjustable diffuser for ease of wind pressure adjustment as claimed in claim 1 wherein: The inner wall of the gear ring (5) is provided with a second annular tooth track, the external size of which is consistent with that of the first gear (4).
7. An adjustable diffuser for facilitating wind pressure adjustment as defined in claim 4, wherein: The vane body (303) is provided with fifteen, and the vane bodies (303) are symmetric about the central axis of the device body (1).