Wear-resistant fan

Abstract

The utility model provides a wear-resisting draught fan which comprises an impeller chamber, a detachable air inlet cylinder is installed at an air inlet of the impeller chamber, a detachable air outlet cylinder is installed at an air outlet of the impeller chamber, the air outlet cylinder is parallel to the air inlet cylinder, inner pipe sleeves are inserted in the air inlet cylinder and the air outlet cylinder, and the inner pipe sleeves are connected with the impeller chamber. One ends of the two inner pipe sleeves are inserted into the impeller chamber air inlet and the impeller chamber air outlet correspondingly, and a detachable filter screen used for filtering dust is installed at the end, away from the impeller chamber, of the inner pipe sleeve in the air inlet barrel. The dust collector has the advantages that high-speed airflow containing dust particles does not make direct contact with the air inlet barrel and the air outlet barrel, and the service life of the air inlet barrel and the service life of the air outlet barrel are prolonged.

Description

Technical Field

[0001] The utility model relates to an abrasion-resistant fan, belonging to the technical field of fans. Background Art

[0002] The vortex fan is a kind of fan. An air inlet cylinder and an air outlet cylinder are respectively installed at the air inlet and the air outlet of the impeller chamber of the vortex fan, and the air inlet cylinder and the air outlet cylinder are located below the motor. When the vortex fan is working, the air flow passes through the air inlet cylinder and the air outlet cylinder at a high speed. Therefore, the dust particles in the air flow will impact the inner walls of the air inlet cylinder and the air outlet cylinder during the high-speed flow of the water air flow, resulting in more and more serious wear of the inner walls of the air inlet cylinder and the air outlet cylinder, affecting the service life of the air inlet cylinder and the air outlet cylinder. Therefore, it is necessary to design an abrasion-resistant fan that can improve the service life of the air inlet cylinder and the air outlet cylinder. Content of the Utility Model

[0003] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide an abrasion-resistant fan to solve the problems put forward in the above background art. The utility model improves the service life of the air inlet cylinder and the air outlet cylinder.

[0004] In order to achieve the above purpose, the utility model is realized through the following technical solutions: An abrasion-resistant fan includes an impeller chamber. A detachable air inlet cylinder is installed at the air inlet of the impeller chamber, and a detachable air outlet cylinder is installed at the air outlet of the impeller chamber. The air outlet cylinder is parallel to the air inlet cylinder. Inner pipe sleeves are inserted into both the air inlet cylinder and the air outlet cylinder. One ends of the two inner pipe sleeves are respectively inserted into the air inlet of the impeller chamber and the air outlet of the impeller chamber. A detachable dust filter screen is installed at the end of the inner pipe sleeve in the air inlet cylinder away from the impeller chamber.

[0005] Furthermore, a plurality of grooves are recessed on the outer surfaces of the ends of the air inlet cylinder close to the impeller chamber and the outer surfaces of the ends of the air outlet cylinder close to the impeller chamber. A perforation is formed on one side of the groove. A limiting block is provided on the side of the perforation facing away from the impeller chamber. A round hole aligned with the perforation is formed on one side of the limiting block. A screw is inserted into the channel formed by the round hole and the perforation. One end of the screw passes through the hole on the impeller chamber and is threadedly connected with a nut. A plurality of thin rods are fixedly connected to the surface of the limiting block facing the perforation. A plurality of blind holes matching with the thin rods are formed on the side of the groove where the perforation is formed. One end of the thin rod away from the limiting block is inserted into the blind hole.

[0006] Furthermore, a motor for driving the impeller to rotate is installed on one side of the impeller chamber. A U-shaped frame is installed at the lower position of the outer surface of the motor. The U-shaped frame is arranged between the air inlet cylinder and the air outlet cylinder.

[0007] Furthermore, two positioning ears are fixedly connected to the lower position of the outer surface of the impeller chamber. Fixing holes are formed on the upper surfaces of the positioning ears.

[0008] Furthermore, the filter screen is installed inside the ring, the ring is sleeved on one end of the inner tube sleeve inside the air inlet cylinder, and both the ring and the filter screen are arranged inside the air inlet cylinder.

[0009] Furthermore, tube cylinders are installed at one end of the air inlet cylinder far away from the impeller chamber and at one end of the air outlet cylinder far away from the impeller chamber, and internal threads matching the external threads on the air duct are machined on the inner surface of the tube cylinder.

[0010] Advantages of the utility model:

[0011] 1. Inner tube sleeves are installed inside both the air inlet cylinder and the air outlet cylinder. Then, dust particles will flow through the inner tube sleeves driven by the high-speed air flow, so that the high-speed air flow containing dust particles does not directly contact the air inlet cylinder and the air outlet cylinder, improving the service life of the air inlet cylinder and the air outlet cylinder. When the inner tube sleeves are worn, they can be replaced separately, reducing the replacement cost.

[0012] 2. The thin rod on the limit block is inserted into the blind hole inside the groove. Then, supported by the thin rod, there is a certain distance between the limit block and the perforation. After the screw passes through the round hole and the perforation and is connected to the impeller chamber, at this time, a part of the screw is exposed. When the screw and the nut cannot be normally separated due to rust or other reasons, the screw can be cut off using the gap between the perforation and the round hole, facilitating the replacement of the inner tube sleeve in the later stage. Description of the drawings

[0013] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, purposes and advantages of the utility model will become more obvious:

[0014] Figure 1 Structural schematic diagram of a wear-resistant fan of the utility model;

[0015] Figure 2 Enlarged view at A of a wear-resistant fan of the utility model;

[0016] Figure 3 Assembly schematic diagram of the inner tube sleeve and the air outlet cylinder of a wear-resistant fan of the utility model;

[0017] Figure 4 Assembly schematic diagram of the ring, the filter screen and the inner tube sleeve of a wear-resistant fan of the utility model;

[0018] In the figure: 1 - impeller chamber, 2 - motor, 3 - air outlet cylinder, 4 - U-shaped frame, 5 - tube cylinder, 6 - air inlet cylinder, 7 - positioning ear, 8 - screw, 9 - limit block, 10 - thin rod, 11 - perforation, 12 - groove, 13 - inner tube sleeve, 14 - filter screen, 15 - ring. Specific embodiments

[0019] To make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] Please refer to Figure 1 , the present utility model provides a technical solution: a wear-resistant fan, including an impeller chamber 1, a motor 2 for driving the impeller to rotate is installed on one side of the impeller chamber 1, a U-shaped frame 4 is installed at the lower position of the outer surface of the motor 2, the U-shaped frame 4 is arranged between the air inlet cylinder 6 and the air outlet cylinder 3, two positioning ears 7 are fixedly connected to the lower position of the outer surface of the impeller chamber 1, fixing holes are provided on the upper surface of the positioning ears 7, and the U-shaped frame 4 and the positioning ears 7 are installed at the required positions by using bolts to complete the fixation of the positions of the impeller chamber 1 and the motor 2. Pipe cylinders 5 are installed at both ends of the air inlet cylinder 6 far from the impeller chamber 1 and the air outlet cylinder 3 far from the impeller chamber 1. Internal threads matching the external threads on the air pipe are processed on the inner surface of the pipe cylinder 5. The design of the pipe cylinder 5 facilitates the installation of the air pipe on the air inlet cylinder 6 and the air outlet cylinder 3.

[0021] Refer to Figure 1 , Figure 2 and Figure 3 , a detachable air inlet cylinder 6 is installed at the air inlet of the impeller chamber 1, a detachable air outlet cylinder 3 is installed at the air outlet of the impeller chamber 1, the air outlet cylinder 3 and the air inlet cylinder 6 are parallel to each other. Among them, a plurality of grooves 12 are recessed on the outer surfaces of the ends of the air inlet cylinder 6 close to the impeller chamber 1 and the air outlet cylinder 3 close to the impeller chamber 1. A perforation 11 is provided on one side surface of the groove 12. A limiting block 9 is provided on the side of the perforation 11 away from the impeller chamber 1. A round hole aligned with the perforation 11 is provided on one side surface of the limiting block 9. A screw 8 is inserted into the channel formed by the round hole and the perforation 11. One end of the screw 8 passes through the hole on the impeller chamber 1 and is threadedly connected with a nut. A plurality of thin rods 10 are fixedly connected to the surface of the limiting block 9 facing the perforation 11. A plurality of blind holes matching the thin rods 10 are provided on the side surface of the groove 12 where the perforation 11 is provided. The end of the thin rod 10 away from the limiting block 9 is inserted into the blind hole, so that the thin rod 10 on the limiting block 9 is inserted into the blind hole in the groove 12. Then, supported by the thin rod 10, there is a certain distance between the limiting block 9 and the perforation 11. When the screw 8 passes through the round hole and the perforation 11 and is connected to the impeller chamber 1, at this time, a part of the screw 8 is in a bare state. When the screw 8 and the nut cannot be normally separated due to rust or other reasons, the screw 8 can be cut off by using the gap between the perforation 11 and the round hole, which is convenient for the later replacement of the inner pipe sleeve 13.

[0022] Refer to Figure 1 , Figure 3 and Figure 4, inner pipe sleeves 13 are inserted into both the air inlet pipe 6 and the air outlet pipe 3. One ends of the two inner pipe sleeves 13 are respectively inserted into the air inlet of the impeller chamber 1 and the air outlet of the impeller chamber 1. By installing the inner pipe sleeves 13 in both the air inlet pipe 6 and the air outlet pipe 3, dust particles will flow through the inner pipe sleeves 13 driven by the high-speed air flow. Thus, the high-speed air flow containing dust particles does not directly contact the air inlet pipe 6 and the air outlet pipe 3, improving the service life of the air inlet pipe 6 and the air outlet pipe 3. When the inner pipe sleeve 13 is worn, it can be replaced separately, reducing the replacement cost.

[0023] Refer to Figure 1 and Figure 4 , a detachable dust filter screen 14 is installed at the end of the inner pipe sleeve 13 in the air inlet pipe 6 away from the impeller chamber 1. The filter screen 14 is installed in the ring 15, and the ring 15 is sleeved on one end of the inner pipe sleeve 13 in the air inlet pipe 6. Both the ring 15 and the filter screen 14 are arranged in the air inlet pipe 6. The ring 15 serves to connect the filter screen 14 and the inner pipe sleeve 13, and the filter screen 14 serves to filter larger dust particles.

[0024] Although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A wear-resistant fan, comprising an impeller chamber (1), characterized in that: A detachable air inlet cylinder (6) is installed at the air inlet of the impeller chamber (1), and a detachable air outlet cylinder (3) is installed at the air outlet of the impeller chamber (1). The air outlet cylinder (3) is parallel to the air inlet cylinder (6). Inner pipe sleeves (13) are inserted into both the air inlet cylinder (6) and the air outlet cylinder (3). One ends of the two inner pipe sleeves (13) are respectively inserted into the air inlet of the impeller chamber (1) and the air outlet of the impeller chamber (1). A detachable dust filter net (14) is installed at the end of the inner pipe sleeve (13) in the air inlet cylinder (6) away from the impeller chamber (1).

2. The wear-resistant fan according to claim 1, wherein: On the outer surface of one end of the air inlet cylinder (6) close to the impeller chamber (1) and on the outer surface of one end of the air outlet cylinder (3) close to the impeller chamber (1), a plurality of grooves (12) are recessed. A perforation (11) is formed on one side surface inside the groove (12). A limiting block (9) is provided on the side of the perforation (11) away from the impeller chamber (1). A round hole aligned with the perforation (11) is formed on one side surface of the limiting block (9). A screw (8) is inserted into the channel formed by the round hole and the perforation (11). One end of the screw (8) passes through a hole on the impeller chamber (1) and is threadedly connected to a nut. A plurality of thin rods (10) are fixedly connected to the surface of the limiting block (9) facing the perforation (11). A plurality of blind holes matching the thin rods (10) are formed on the side surface of the groove (12) where the perforation (11) is formed. One end of the thin rod (10) away from the limiting block (9) is inserted into the blind hole.

3. A wear-resistant fan according to claim 1, characterized in that: A motor (2) for driving the impeller to rotate is installed on one side surface of the impeller chamber (1). A U-shaped frame (4) is installed at the lower position of the outer surface of the motor (2). The U-shaped frame (4) is arranged between the air inlet cylinder (6) and the air outlet cylinder (3).

4. A wear-resistant fan according to claim 1, characterized in that: Two positioning ears (7) are fixedly connected to the lower position of the outer surface of the impeller chamber (1). Fixing holes are formed on the upper surfaces of the positioning ears (7).

5. The wear-resistant fan according to claim 1, characterized in that: The filter net (14) is installed inside a ring (15). The ring (15) is sleeved on one end of the inner pipe sleeve (13) in the air inlet cylinder (6). Both the ring (15) and the filter net (14) are arranged inside the air inlet cylinder (6).

6. The wear-resistant fan according to claim 1, wherein: Pipe cylinders (5) are installed at the ends of the air inlet cylinder (6) away from the impeller chamber (1) and the air outlet cylinder (3) away from the impeller chamber (1). Internal threads matching the external threads on the air duct are machined on the inner surfaces of the pipe cylinders (5).

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