CN-224214422-U - High-pressure aluminum alloy explosion-proof fan

Abstract

The utility model relates to the technical field of explosion-proof fans, in particular to a high-pressure aluminum alloy explosion-proof fan which comprises an underframe and an explosion-proof fan body, wherein one end of the explosion-proof fan body is rotationally connected with the underframe through an end shaft, two symmetrical arc-shaped guide pieces are arranged on one side of the underframe, which is far away from the end shaft, the two arc-shaped guide pieces are positioned on the side surface of the explosion-proof fan body, the circle center of each arc-shaped guide piece is positioned on the end shaft, each arc-shaped guide piece comprises an arc-shaped guide part and a sliding part, the sliding parts are connected with the side wall of the explosion-proof fan body, positioning holes distributed at equal intervals are formed in the outer side of each arc-shaped guide part, and locking positioning pieces matched with the positioning holes are arranged on the sliding parts of the arc-shaped guide pieces.

Inventors

• JIN WANBING
• GUO BO
• QIAN AN
• LI YIJIE

Assignees

• 宣城巴法洛风机有限公司

Dates

Publication Date

20260508

Application Date

20250612

Claims (5)

1. 1. The high-voltage aluminum alloy explosion-proof fan comprises a bottom frame (1) and an explosion-proof fan body (2) and is characterized in that one end of the explosion-proof fan body (2) is rotationally connected with the bottom frame (1) through an end shaft, two symmetrical arc-shaped guide pieces (5) are arranged on one side, away from the end shaft, of the bottom frame (1), the two arc-shaped guide pieces (5) are located on the side face of the explosion-proof fan body (2), the circle center of each arc-shaped guide piece (5) is located on the end shaft, each arc-shaped guide piece (5) comprises an arc-shaped guide part and a sliding part, the sliding parts are connected with the side walls of the explosion-proof fan body (2), positioning holes (7) distributed at equal distances are formed in the outer sides of the arc-shaped guide parts, and locking positioning pieces (6) matched with the positioning holes (7) are arranged on the sliding parts of the arc-shaped guide pieces (5).
2. 2. The high-pressure aluminum alloy explosion-proof fan as set forth in claim 1, wherein the arc-shaped guide part comprises an arc-shaped guide frame (51) fixed on the underframe (1), the positioning hole (7) is formed in the outer arc surface of the arc-shaped guide frame (51), an arc-shaped notch (52) is formed in the arc-shaped guide frame (51), and the sliding part is located in the notch (52).
3. 3. The high-pressure aluminum alloy explosion-proof fan according to claim 2, wherein the sliding part comprises a sliding column (53) arranged in the notch (52) in a sliding manner, one end of the sliding column (53) is connected with the outer side wall of the explosion-proof fan body (2), a limiting ring (54) attached to the arc-shaped guide frame (51) is fixed on the outer side of the sliding column (53), and the locking positioning piece (6) is fixed on the end side of the sliding column (53).
4. 4. The high-pressure aluminum alloy explosion-proof fan according to claim 3, wherein the locking positioning piece (6) comprises a side plate (61) fixed on one side of the sliding column (53), a pin shaft (62) is slidably inserted on one side of the side plate (61), a handle block (63) is fixed at one end of the pin shaft (62), a convex ring (64) is fixed at one end, far away from the handle block (63), of the pin shaft (62), and a spring (65) positioned between the convex ring (64) and the side plate (61) is sleeved on the pin shaft (62).
5. 5. The high-pressure aluminum alloy explosion-proof fan according to claim 1, wherein a bottom plate (4) is fixed on one side of the underframe (1), and a telescopic tube (3) is rotatably connected between the top of the bottom plate (4) and the outer wall of the bottom end of the explosion-proof fan body (2).

Description

High-pressure aluminum alloy explosion-proof fan Technical Field The utility model relates to the technical field of explosion-proof fans, in particular to a high-pressure aluminum alloy explosion-proof fan. Background The explosion-proof fan is used for places needing ventilation, such as underground coal mines, boiler rooms and the like, where the concentration of combustible gas is high. The process of the explosion-proof fan requires that the rotating part (fan impeller) can not generate sparks when rubbed with the shell under special conditions so as not to ignite the combustible gas to cause serious consequences. The existing explosion-proof fan needs to be directly moved when the angle of the explosion-proof fan needs to be adjusted, the angle of the explosion-proof fan is adjusted, the explosion-proof fan is usually fixed by using bolts, and the explosion-proof fan needs to be disassembled and assembled again if the explosion-proof fan needs to be moved, so that the angle of the explosion-proof fan is inconvenient to adjust. Disclosure of utility model The utility model aims to provide a high-pressure aluminum alloy explosion-proof fan so as to solve the problems in the background technology. The high-pressure aluminum alloy explosion-proof fan comprises a bottom frame and an explosion-proof fan body, wherein one end of the explosion-proof fan body is rotatably connected with the bottom frame through an end shaft, two symmetrical arc-shaped guide pieces are arranged on one side, away from the end shaft, of the bottom frame, the two arc-shaped guide pieces are positioned on the side face of the explosion-proof fan body, the circle center of each arc-shaped guide piece is positioned on the end shaft, each arc-shaped guide piece comprises an arc-shaped guide part and a sliding part, the sliding parts are connected with the side wall of the explosion-proof fan body, positioning holes distributed at equal intervals are formed in the outer side of each arc-shaped guide part, and locking positioning pieces matched with the positioning holes are arranged on the sliding parts of the arc-shaped guide pieces. The anti-explosion fan has the advantages that the fan angle is conveniently adjusted through the cooperation of the structures such as the underframe, the anti-explosion fan body, the arc-shaped guide piece, the locking positioning piece and the like, when the fan angle needs to be adjusted, only the locking positioning piece is needed to be loosened, the sliding part slides along the arc-shaped guide part, the anti-explosion fan body is driven to rotate around the end shaft, and the anti-explosion fan body is locked with the positioning hole through the cooperation of the locking positioning piece after reaching the target angle. Preferably, the arc guiding part comprises an arc guiding frame fixed on the underframe, the positioning hole is formed in the outer cambered surface of the arc guiding frame, an arc notch is formed in the arc guiding frame, and the sliding part is located in the notch. The anti-explosion fan has the advantages that the positioning holes formed in the outer cambered surface of the arc-shaped guide frame are matched with the locking positioning pieces to realize angle locking, and the arc-shaped notch provides an accurate sliding path for the sliding part. Preferably, the sliding part comprises a sliding column arranged in the notch in a sliding way, one end of the sliding column is connected with the outer side wall of the anti-explosion fan body, a limiting ring attached to the arc-shaped guide frame is fixed on the outer side of the sliding column, and the locking positioning piece is fixed on the end side of the sliding column. The anti-explosion fan has the advantages that when the anti-explosion fan body rotates around the end shaft, the sliding column synchronously slides along the notch, and the limiting ring is in contact with the arc-shaped guide frame in a fitting manner, so that shaking and offset in the adjusting process are avoided. Preferably, the locking positioning piece comprises a side plate fixed on one side of the sliding column, a pin shaft is inserted into one side of the side plate in a sliding manner, a handle block is fixed at one end of the pin shaft, a convex ring is fixed at one end of the pin shaft away from the handle block, and a spring positioned between the convex ring and the side plate is sleeved on the pin shaft. The locking positioning piece has the advantages that the pin shaft of the locking positioning piece always keeps the trend of being inserted into the positioning hole under the action of the spring, when the angle needs to be adjusted, the pin shaft is separated from the positioning hole by pulling the handle block, the handle block is released after the angle is adjusted in place, and the pin shaft is pushed by the elastic force of the spring to be reinserted into the corresponding positioning hole, so that the aim of quick locking