Glass fiber reinforced plastic centrifugal fan with dustproof function

Abstract

The utility model relates to a glass fiber reinforced plastic centrifugal fan with a dustproof function, which belongs to the technical field of glass fiber reinforced plastic centrifugal fans and comprises a glass fiber reinforced plastic centrifugal fan body, an air inlet is arranged on the front end face of the glass fiber reinforced plastic centrifugal fan body, and the right side of the air inlet is fixedly connected with a fixing block on the front end face of the glass fiber reinforced plastic centrifugal fan body. The upper wall and the lower wall of the fixing block are rotationally connected with a connecting shaft, the outer wall of the connecting shaft is rotationally connected with a connecting block, and one end of the connecting block is fixedly connected with a connecting frame. The dustproof net has the advantages that the connecting frame is clamped with the supporting plate through the positioning holes and the positioning rods, then the rubber ring is tightly attached to the front end face of the connecting frame, and the pushing plate is tightly attached to the front end face of the rubber ring, so that the connecting frame extrudes the pushing plate, and the first dustproof net is mounted and dismounted; the dustproof net can be rapidly taken down from the fan to be cleaned or replaced, the influence of dust accumulation on the performance of the fan is reduced, and operation is easy and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of glass fiber reinforced plastic centrifugal fans, in particular to a glass fiber reinforced plastic centrifugal fan with a dustproof function. Background Art

[0002] Fiberglass centrifugal fans are made of fiberglass, also known as corrosion-resistant centrifugal fans. They are generally used in environments with corrosive gases to discharge these gases. The gases they convey must not contain sticky materials, must contain less than or equal to 150mg / m³ of dust and hard particles, must have a temperature of less than or equal to 60°C, and must have a relative humidity of less than or equal to 100%. Fiberglass centrifugal fans are not suitable for high-temperature environments.

[0003] During long-term operation, dust and other particulate matter are easily accumulated at the air inlet and outlet of the fan. These impurities will not only affect the operating efficiency of the fan, but may also cause wear and damage to key components such as the impeller and bearings inside the fan, thereby shortening the service life of the fan. Traditional dust prevention measures often have problems such as inconvenient installation, difficult disassembly, and poor sealing effect, which cannot meet users' needs for efficient and convenient maintenance of the fan. In response to the above situation, we have launched a fiberglass centrifugal fan with dust prevention function. Utility Model Content

[0004] The purpose of the present invention is to provide a fiberglass centrifugal fan with dustproof function, so as to solve the problem raised in the above background technology that dust and other particulate matter are easily accumulated at the air inlet and outlet of the fan during long-term operation, and these impurities not only affect the operating efficiency of the fan.

[0005] The technical solution of the utility model is:

[0006] A fiberglass reinforced plastic centrifugal fan body, wherein the front end surface of the fiberglass reinforced plastic centrifugal fan body is provided with an air inlet, a fixed block is fixedly connected to the front end surface of the fiberglass reinforced plastic centrifugal fan body on the right side of the air inlet, the upper and lower walls of the fixed block are rotatably connected to a connecting shaft, the outer wall of the connecting shaft is rotatably connected to a connecting block, and one end of the connecting block is fixedly connected to a connecting frame;

[0007] The inner wall of the air inlet is fixedly connected to a support plate, the front end wall of the support plate is fixedly connected to a positioning rod, the front end surface of the support plate is fitly connected to a connecting frame, a positioning hole is provided at the edge of the connecting frame, the inner wall of the connecting frame is fixedly connected to a first dustproof net, the front end surface of the connecting frame is fitly connected to a rubber ring, and the front end surface of the rubber ring is fitly connected to a push plate.

[0008] Furthermore, the connecting frame forms a snap-fit ​​structure with the support plate through the positioning holes and the positioning rods.

[0009] Engage the connecting frame with the support plate through the positioning hole and the positioning rod to install the first dustproof net on the inner wall of the connecting frame, then press the rubber ring tightly against the front end surface of the connecting frame, and then press the push plate tightly against the front end surface of the rubber ring. Finally, the connecting frame and the connecting block are rotated with the fiberglass centrifugal fan body through the connecting shaft, so that the connecting frame squeezes the push plate to achieve the installation and removal of the first dustproof net.

[0010] Furthermore, a connecting rod is fixedly connected to the left end edge of the connecting frame, a threaded bolt is provided inside the connecting rod, and a limiting rod is provided on the front end surface of the fiberglass centrifugal fan body on the right side of the air inlet.

[0011] When installing the connecting frame, fit the connecting frame on the air inlet, make the inner wall of the connecting frame contact and fit with the limiting rod, and turn the threaded bolt to lock the two, so that the dust screen can be removed at the same time.

[0012] The utility model provides a fiberglass reinforced plastic centrifugal fan with dustproof function through improvement. Compared with the existing technology, it has the following improvements and advantages:

[0013] First: In the utility model, the connecting frame is engaged with the support plate through the positioning hole and the positioning rod, and then the rubber ring is tightly attached to the front end surface of the connecting frame, and then the push plate is tightly attached to the front end surface of the rubber ring, so that the connecting frame squeezes the push plate to realize the installation and disassembly of the first dustproof net. The dustproof net can be quickly removed from the fan for cleaning or replacement, which also reduces the impact of dust accumulation on the performance of the fan, and the operation is simple and convenient.

[0014] Second: The utility model provides dustproof nets at the air inlet and outlet of the fiberglass centrifugal fan body to block dust and other particulate matter in the external environment from entering the interior of the fan, which helps to keep the interior of the fan clean and prevents dust from causing wear and damage to key components such as the impeller and bearings inside the fan, thereby extending the service life of the fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further explained below in conjunction with the accompanying drawings and Examples:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the support frame connection structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure of the first dustproof net of the utility model.

[0019] Explanation of the accompanying drawings: 1. FRP centrifugal fan body; 2. Air inlet; 201. Fixed block; 202. Connecting shaft; 203. Connecting block; 204. Connecting frame; 3. Support plate; 301. Positioning rod; 302. Connecting frame; 303. First dustproof net; 304. Positioning hole; 305. Rubber ring; 306. Push plate; 4. Connecting rod; 401. Threaded bolt; 402. Limiting rod; 5. Air outlet; 501. Limiting groove; 502. Limiting plate; 503. Support frame; 504. Second dustproof net; 505. Locking block; 506. First rotating shaft; 507. Transmission rod; 508. Second rotating shaft. DETAILED DESCRIPTION

[0020] The following will be combined with the Figures 1 to 3 This utility model is described in detail, and the technical solutions in the embodiments of this utility model are clearly and completely described. Obviously, the embodiments described are only some of the embodiments of this utility model, not all of them. Based on the embodiments of this utility model, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this utility model.

[0021] The utility model provides a glass fiber reinforced plastic centrifugal fan with dustproof function through improvement. Figure 1-Figure 3 As shown, it includes a fiberglass reinforced plastic centrifugal fan body 1, the front face of the fiberglass reinforced plastic centrifugal fan body 1 is provided with an air inlet 2, the right side of the air inlet 2 is located at the front face of the fiberglass reinforced plastic centrifugal fan body 1 and is fixedly connected to a fixing block 201, the upper and lower walls of the fixing block 201 are rotatably connected to a connecting shaft 202, the outer wall of the connecting shaft 202 is rotatably connected to a connecting block 203, and one end of the connecting block 203 is fixedly connected to a connecting frame 204;

[0022] The inner wall of the air inlet 2 is fixedly connected to the support plate 3, the front end wall of the support plate 3 is fixedly connected to the positioning rod 301, the front end surface of the support plate 3 is fitted and connected to the connecting frame 302, a positioning hole 304 is provided at the edge of the connecting frame 302, the inner wall of the connecting frame 302 is fixedly connected to the first dustproof net 303, the front end surface of the connecting frame 302 is fitted and connected to the rubber ring 305, and the front end surface of the rubber ring 305 is fitted and connected to the push plate 306.

[0023] In this embodiment: the air inlet 2 of the fiberglass centrifugal fan body 1 is provided with a first dustproof net 303 to prevent dust and other particulate matter in the external environment from entering the interior of the fan, which helps to keep the interior of the fan clean and prevent dust from causing wear and damage to key components such as the impeller and bearings inside the fan, thereby extending the service life of the fan. When installing and removing the first dustproof net 303, the connecting frame 302 is engaged with the support plate 3 through the positioning hole 304 and the positioning rod 301 to achieve the installation of the first dustproof net 303 on the inner wall of the connecting frame 302, and then the rubber ring 305 is tightly attached to the front end surface of the connecting frame 302, and then the push plate 306 is tightly attached to the rubber ring 305. The front end face of the fan is finally connected to the frame 204 and the connecting block 203, which are rotated with the glass fiber reinforced plastic centrifugal fan body 1 through the connecting shaft 202, so that the connecting frame 204 squeezes the push plate 306 to achieve the installation and removal of the first dustproof net 303, simplifying the installation process of the first dustproof net 303. The addition of the rubber ring 305 can ensure the sealing between the connecting frame 302 and the dustproof net, preventing dust from entering the inside of the fan through the gap. At the same time, the rubber ring 305 can also provide a certain buffering effect, reducing the damage to the dustproof net caused by vibration or impact. The dustproof net can be quickly removed from the fan for cleaning or replacement, which also reduces the impact of dust accumulation on the fan performance.

[0024] In a preferred embodiment, an air outlet 5 is provided above the fiberglass centrifugal fan body 1, and a limiting groove 501 is provided on the inner wall of the air outlet 5. The inner wall of the limiting groove 501 is slidably connected to the limiting plate 502, and the inner wall of the limiting plate 502 is fixedly connected to the support frame 503. The inner wall of the support frame 503 is fixedly connected to the second dustproof net 504, and the limiting plates 502 are provided in two groups. The two groups of limiting plates 502 are located at the front and rear ends of the support frame 503 and are fixedly connected. The provided support frame 503 slides in the limiting groove 501 through the limiting plate 502, so as to slide out the second dustproof net 504 on the inner wall of the support frame 503, thereby facilitating cleaning.

[0025] In a preferred embodiment, the front end of the limit plate 502 is fixedly connected to a locking block 505, and the internal rotation of the locking block 505 is connected to the first rotating shaft 506, the lower end of the first rotating shaft 506 is rotationally connected to the transmission rod 507, and the end of the transmission rod 507 is rotationally connected to the second rotating shaft 508. The transmission rod 507 is rotationally connected to the limit rod 402 through the second rotating shaft 508. When the connecting frame 204 rotates, the transmission rod 507 rotates through the first rotating shaft 506 and the locking block 505, so that the locking block 505 is pulled out and the second dustproof net 504 on the inner wall of the support frame 503 is slid out. Therefore, when the first dustproof net 303 is disassembled, the second dustproof net 504 is pulled out at the same time to achieve cleaning of the second dustproof net 504.

[0026] In a preferred embodiment, a connecting rod 4 is fixedly connected to the left end edge of the connecting frame 204, and a threaded bolt 401 is provided inside the connecting rod 4. A limiting rod 402 is provided on the front end face of the fiberglass centrifugal fan body 1 to the right of the air inlet 2. When the connecting frame 204 is installed, the connecting frame 204 is attached to the air inlet 2, and the inner wall of the connecting frame 204 is in contact with the limiting rod 402. The threaded bolt 401 is rotated to lock the two, so that the dust net can be disassembled at the same time.

[0027] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fiberglass centrifugal fan with dustproof function, characterized by: The invention comprises a glass fiber reinforced plastic centrifugal fan body (1), wherein an air inlet (2) is provided on the front end surface of the glass fiber reinforced plastic centrifugal fan body (1), a fixing block (201) is fixedly connected to the front end surface of the glass fiber reinforced plastic centrifugal fan body (1) on the right side of the air inlet (2), the fixing block (201) is rotatably connected to a connecting shaft (202), the outer wall of the connecting shaft (202) is rotatably connected to a connecting block (203), and one end of the connecting block (203) is fixedly connected to a connecting frame (204); The inner wall of the air inlet (2) is fixedly connected to a support plate (3), the front end wall of the support plate (3) is fixedly connected to a positioning rod (301), the front end surface of the support plate (3) is fitted and connected to a connecting frame (302), a positioning hole (304) is provided at the edge of the connecting frame (302), the inner wall of the connecting frame (302) is fixedly connected to a first dustproof net (303), the front end surface of the connecting frame (302) is fitted and connected to a rubber ring (305), and the front end surface of the rubber ring (305) is fitted and connected to a push plate (306).

2. The fiberglass reinforced plastic centrifugal fan with dustproof function according to claim 1, characterized in that: The connecting frame (302) forms a snap-fit ​​structure with the support plate (3) through the positioning hole (304) and the positioning rod (301).

3. The fiberglass reinforced plastic centrifugal fan with dustproof function according to claim 1, characterized in that: An air outlet (5) is provided above the fiberglass reinforced plastic centrifugal fan body (1), a limiting groove (501) is provided on the inner wall of the air outlet (5), and the inner wall of the limiting groove (501) is slidably connected to a limiting plate (502).

4. The fiberglass reinforced plastic centrifugal fan with dustproof function according to claim 3, characterized in that: The inner wall of the limiting plate (502) is fixedly connected to the supporting frame (503), the inner wall of the supporting frame (503) is fixedly connected to a second dustproof net (504), and the limiting plates (502) are provided in two groups, and the two groups of limiting plates (502) are located at the front and rear ends of the supporting frame (503) and are fixedly connected.

5. The fiberglass reinforced plastic centrifugal fan with dustproof function according to claim 4, characterized in that: The front end of the limiting plate (502) is fixedly connected to a locking block (505), the interior of the locking block (505) is rotatably connected to a first rotating shaft (506), and the lower end of the first rotating shaft (506) is rotatably connected to a transmission rod (507).

6. The fiberglass reinforced plastic centrifugal fan with dustproof function according to claim 5, characterized in that: The end of the transmission rod (507) is rotatably connected to a second rotating shaft (508).

7. The fiberglass reinforced plastic centrifugal fan with dustproof function according to claim 1, characterized in that: A connecting rod (4) is fixedly connected to the left end edge of the connecting frame (204), a threaded bolt (401) is provided inside the connecting rod (4), and a limiting rod (402) is provided on the front end surface of the glass fiber reinforced plastic centrifugal fan body (1) on the right side of the air inlet (2).

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