High efficiency voluteless fan

Abstract

The utility model provides a kind of high efficiency voluteless fan, including support and the ventilation passage being opened in the support, the ventilation passage one side is provided with first turntable and second turntable, first turntable and the second turntable between jointly fixed connection has multiple flabellums, multiple the flabellums are equidistantly arranged, the both sides of flabellum are slidably provided with cleaning plate, the cleaning plate is used to clean the surface of flabellum when moving, the cleaning plate is fixedly connected with transmission rod, multiple transmission rod is slidably arranged on the second turntable, the end of multiple transmission rod away from the cleaning plate is jointly fixedly connected with third turntable, the utility model provides a kind of high efficiency voluteless fan, and the surface of flabellum can be cleaned by the setting of cleaning plate, prevent dust from accumulating on the surface of flabellum, maintain the smooth surface of blade, to reduce energy loss, improve fan efficiency.

Description

Technical Field

[0001] This utility model relates to the field of ventilation device technology, specifically to a high-efficiency volute-free fan. Background Technology

[0002] A fan is a mechanical device that converts mechanical energy into gas kinetic energy through a rotating impeller for transporting gas or generating airflow. It is widely used in ventilation, cooling, exhaust, dust removal and other fields. A volute-less fan is a fan without a volute structure. Its impeller is directly exposed to the air or installed in a duct, and the rotation of the impeller directly drives the gas flow. In a fan with a volute, the airflow needs to pass through the volute after flowing out of the impeller. This process may generate some airflow separation and eddies, resulting in energy loss. However, a volute-less fan does not have a volute, and the airflow flows directly out of the impeller, reducing these losses and making it more efficient under certain operating conditions.

[0003] High-efficiency volute-less fans have a simpler structure, lacking the complex volute component, resulting in lower manufacturing costs and easier installation and maintenance. Furthermore, the absence of a volute structure reduces noise generated by airflow within the fan, leading to better noise control. However, because the blades are directly exposed to the environment, they are prone to dust accumulation. Long-term dust accumulation increases airflow resistance, reducing fan efficiency and increasing energy consumption. Uneven dust accumulation on the blades can also cause uneven mass distribution, leading to vibrations and potentially damaging bearings or the motor over time. Therefore, volute-less fans require frequent shutdowns for impeller cleaning, disrupting continuous operation.

[0004] In view of this, a high-efficiency volute-less fan is proposed. Utility Model Content

[0005] The purpose of this invention is to solve the problem that the blades of high-efficiency volute-less fans are prone to dust accumulation and are difficult to clean, and to provide a high-efficiency volute-less fan.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a high-efficiency volute-less fan, including a bracket and a ventilation channel formed on the bracket. A first turntable and a second turntable are arranged on one side of the ventilation channel. A plurality of fan blades are fixedly connected between the first turntable and the second turntable. The plurality of fan blades are arranged at equal intervals. A cleaning plate is slidably arranged on both sides of the fan blades. The cleaning plate is used to clean the surface of the fan blades when moving. A transmission rod is fixedly connected to the cleaning plate. A plurality of transmission rods are slidably arranged on the second turntable. The ends of the plurality of transmission rods away from the cleaning plate are fixedly connected to a third turntable.

[0007] Preferably, an electric push rod is fixedly connected to the second turntable, the protruding end of the electric push rod passes through the second turntable, and the protruding end of the electric push rod is fixedly connected to the third turntable. The electric push rod is used to move the third turntable in the horizontal direction relative to the second turntable when it extends or retracts, so as to drive multiple cleaning plates to clean multiple fan blades simultaneously.

[0008] Preferably, a motor is fixedly connected to the bracket, and a telescopic rod is fixedly connected to the output end of the motor. One end of the telescopic rod is fixedly connected to the motor, and the other end of the telescopic rod is fixedly connected to the third turntable. The telescopic rod is used to drive the third turntable to rotate when the motor starts, thereby driving the fan blades to rotate.

[0009] Preferably, the telescopic rod includes a main rod and a secondary rod slidably disposed on the main rod. The main rod has a sliding groove for sliding the secondary rod. A plurality of limiting blocks are fixedly connected to the secondary rod. The sliding groove has a plurality of limiting grooves adapted to the limiting blocks for limiting the limiting blocks.

[0010] Preferably, four limiting blocks are provided on the secondary rod, and four limiting grooves are provided in the main rod. The limiting grooves do not penetrate the sliding groove to ensure that the secondary rod will not detach from the main rod.

[0011] Preferably, the length of the transmission rod is greater than the length of the fan blade to ensure that the cleaning plate can clean all parts of the fan blade.

[0012] Preferably, both cleaning plates on both sides of the fan blade are in close contact with the fan blade.

[0013] Compared with the prior art, this utility model has the following beneficial effects:

[0014] The high-efficiency volute-free fan provided by this utility model can clean the surface of the fan blades by setting a cleaning plate, preventing dust from accumulating on the surface of the fan blades, maintaining the smooth surface of the blades, thereby reducing energy loss and improving fan efficiency.

[0015] The high-efficiency volute-free fan provided by this utility model solves the problem of traditional fans requiring periodic shutdowns for blade cleaning, allowing the cleaning plate to complete the cleaning task during operation, reducing the need for manual maintenance and greatly reducing downtime. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0017] Figure 1This is a three-dimensional structural diagram of an embodiment of the present utility model.

[0018] Figure 2 This is a diagram showing the working state of the cleaning plate according to an embodiment of the present invention.

[0019] Figure 3 This is a split diagram of an embodiment of the present invention.

[0020] Figure 4 This is a cross-sectional schematic diagram of a telescopic rod according to an embodiment of the present invention.

[0021] In the picture:

[0022] 1. Bracket, 2. Ventilation duct, 3. First turntable, 4. Second turntable, 5. Fan blade, 6. Cleaning plate, 7. Transmission rod, 8. Slot, 9. Electric push rod, 10. Third turntable, 11. Motor, 12. Telescopic rod, 121. Main rod, 122. Secondary rod, 123. Sliding groove, 124. Limiting block, 125. Limiting groove. Detailed Implementation

[0023] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] Please see Figure 1-4 .

[0025] This utility model relates to a high-efficiency volute-less fan, comprising a support frame and a ventilation channel formed on the support frame. A first turntable and a second turntable are arranged on one side of the ventilation channel. Multiple fan blades are fixedly connected between the first and second turntables and are evenly spaced. Cleaning plates are slidably arranged on both sides of the fan blades. The cleaning plates are used to clean the surface of the fan blades when moving. A transmission rod is fixedly connected to the cleaning plate. Multiple transmission rods are slidably arranged on the second turntable. The ends of the multiple transmission rods away from the cleaning plates are fixedly connected to a third turntable. This arrangement allows the first and second turntables to rotate synchronously when the third turntable rotates, which in turn drives the multiple fan blades to rotate for ventilation.

[0026] In addition, an electric push rod is fixedly connected to the second turntable. The extended end of the electric push rod passes through the second turntable and is fixedly connected to the third turntable. The electric push rod is used to extend or retract to move the third turntable horizontally relative to the second turntable to drive multiple cleaning plates to clean multiple fan blades simultaneously. The second turntable has slots that are adapted to the size of the cleaning plates. This design allows the device to work while it is in operation, that is, while the fan blades are rotating, by driving multiple cleaning plates through the electric push rod, thus solving the problem of needing to stop the machine to clean the fan blades.

[0027] Secondly, a motor is fixedly connected to the bracket, and a telescopic rod is fixedly connected to the output end of the motor. One end of the telescopic rod is fixedly connected to the motor, and the other end of the telescopic rod is fixedly connected to the third turntable. The telescopic rod is used to drive the third turntable to rotate when the motor starts, thereby driving the fan blades to rotate. The telescopic rod allows the third turntable to adapt to the motor after it is moved.

[0028] Specifically, the telescopic rod includes a main rod and a secondary rod slidably mounted on the main rod. The main rod has a sliding groove for the secondary rod to slide. Multiple limiting blocks are fixedly connected to the secondary rod. The sliding groove has multiple limiting grooves that are adapted to the limiting blocks for limiting the limiting blocks. The limiting blocks and limiting rods are designed to ensure that the secondary rod can rotate together with the main rod.

[0029] Furthermore, there are four limiting blocks on the secondary rod and four limiting grooves inside the main rod. The limiting grooves do not penetrate the sliding groove to ensure that the secondary rod will not detach from the main rod.

[0030] Secondly, the length of the transmission rod is greater than the length of the fan blade to ensure that the cleaning plate can clean all parts of the fan blade. In other words, the cleaning plate can move from one end of the fan blade to the other end to clean the entire fan blade.

[0031] In addition, the two cleaning plates on both sides of the fan blade are in close contact with the fan blade, and the distance between the two slots is the same as the thickness of the fan blade. In the specific setting, the transmission rod is set with a rectangular cross-section, and the size of the slot is matched with the size of the transmission rod. This ensures that the transmission rod can drive the second and first turntables to rotate while rotating with the third turntable.

[0032] It should be noted that when setting up, it is necessary to ensure that the rotation of the first, second, and third turntables is synchronized to avoid vibration and noise caused by asynchrony. This can be achieved by fixing multiple sliding rods that pass through the second turntable to the third turntable.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A high-efficiency volute-free fan, characterized in that: The device includes a support frame and a ventilation channel formed on the support frame. A first turntable and a second turntable are provided on one side of the ventilation channel. Multiple fan blades are fixedly connected between the first turntable and the second turntable. The multiple fan blades are equally spaced. Cleaning plates are slidably provided on both sides of the fan blades. The cleaning plates are used to clean the surface of the fan blades when moving. A transmission rod is fixedly connected to the cleaning plate. Multiple transmission rods are slidably provided on the second turntable. The ends of the multiple transmission rods away from the cleaning plate are fixedly connected to a third turntable.

2. The high-efficiency volute-less fan as described in claim 1, characterized in that: An electric push rod is fixedly connected to the second turntable. The extended end of the electric push rod passes through the second turntable and is fixedly connected to the third turntable. The electric push rod is used to extend or retract to move the third turntable in the horizontal direction relative to the second turntable, thereby driving multiple cleaning plates to clean multiple fan blades simultaneously.

3. The high-efficiency volute-less fan as described in claim 1, characterized in that: A motor is fixedly connected to the bracket, and a telescopic rod is fixedly connected to the output end of the motor. One end of the telescopic rod is fixedly connected to the motor, and the other end of the telescopic rod is fixedly connected to the third turntable. The telescopic rod is used to drive the third turntable to rotate when the motor starts, thereby driving the fan blades to rotate.

4. The high-efficiency volute-less fan as described in claim 3, characterized in that: The telescopic rod includes a main rod and a secondary rod slidably mounted on the main rod. The main rod has a sliding groove for the secondary rod to slide. Multiple limiting blocks are fixedly connected to the secondary rod. The sliding groove has multiple limiting grooves adapted to the limiting blocks for limiting the limiting blocks.

5. The high-efficiency volute-less fan as described in claim 4, characterized in that: Four limiting blocks are provided on the secondary rod, and four limiting grooves are provided in the main rod. The limiting grooves do not penetrate the sliding groove to ensure that the secondary rod will not detach from the main rod.

6. The high-efficiency volute-less fan as described in claim 5, characterized in that: The length of the transmission rod is greater than the length of the fan blade to ensure that the cleaning plate can clean all parts of the fan blade.

7. The high-efficiency volute-less fan as described in claim 6, characterized in that: Both cleaning plates on both sides of the fan blade are in close contact with the fan blade.

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