Novel energy-saving explosion-proof fan

Abstract

The utility model relates to the technical field of explosion-proof fans, in particular to a novel energy-saving explosion-proof fan which comprises a fan cover, a fan is arranged in an inner channel of the fan cover, a cathode plate is arranged on the upper surface of the inner side of an air inlet of the fan cover, and an anode plate is arranged on the lower surface of the inner side of the air inlet of the fan cover. A scraping mechanism assembly is arranged on the top wall of the fan cover and below the negative plate, the interior of the scraping mechanism assembly is vertically through, a scraping plate upwards extends out of the scraping mechanism assembly from the interior of the scraping mechanism assembly, and the scraping plate is in contact with the surface of the negative plate on the upper portion in the inclined direction; the scraper moves back and forth along the length direction of the cathode plate and scrapes off oil stains adhered to the cathode plate; the cathode and anode plates arranged in the fan cover can be effectively insulated, and oil dirt in the fan cover can be cleaned regularly, so that the possibility of oil dirt collision and spark generation can be reduced, the explosion-proof performance can be improved, the working efficiency of the fan can be ensured, the energy consumption can be reduced, and the fan is energy-saving and environment-friendly.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof fans, in particular to a novel energy-saving explosion-proof fan. Background Art

[0002] Explosion-proof fans can be used for ventilation and smoke exhaust. During long-term use, oil will adhere to the inside of the fan cover. When the oil inside accumulates thicker and thicker, the oil thrown out of the fan rubs against the oil inside the fan cover, which will cause a fire. In addition, the thickness of the oil inside the fan cover gradually increases, which will lead to a decrease in fan efficiency and an increase in power consumption. Therefore, in order to improve the explosion-proof performance of the fan, it is necessary to clean the inside of the fan cover regularly. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and proposes a new energy-saving explosion-proof fan.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A novel energy-saving explosion-proof fan, comprising a fan cover, a fan is arranged in the internal channel of the fan cover, a cathode plate is arranged on the upper surface of the inner side of the air inlet of the fan cover, and an anode plate is arranged on the lower surface, a scraping mechanism assembly is arranged on the top wall of the fan cover below the cathode plate, the interior of the scraping mechanism assembly is vertically penetrated, and a scraper extends upward from the scraping mechanism assembly, the scraper obliquely contacts the surface of the upper cathode plate, and the scraper moves back and forth along the length direction of the cathode plate to scrape off the oil stains adhering to the cathode plate;

[0006] The scraping mechanism assembly includes an external frame, and rotating rollers are rotatably connected to the two sides of the frame. The roller surfaces of the rotating rollers are provided with closed and disc-shaped winding guide grooves. Slide blocks are slidably connected to the two sides of the inner wall of the frame. Sliding balls are provided on the top of the sliders, which extend into the guide grooves and slide along the grooves. A reversible connecting plate is connected between the sliders on both sides through a bearing component, and the connecting plate is fixedly connected to the scraper.

[0007] In a preferred technical solution, the fan cover is provided with a recovery tank for receiving dropped oil at the bottom of the anode plate thereof.

[0008] In a preferred technical solution, control boxes are respectively provided on both sides of the outer wall of the frame on the same side, and two bevel gears for maintaining meshing transmission are provided in each control box. The bevel gears opposite to each other in the two control boxes are connected through a transmission shaft, and the other bevel gears in the two control boxes are respectively connected to the corresponding rotating rollers. A transmission motor for controlling the meshing of the bevel gears is also provided on one of the control boxes.

[0009] In a preferred technical solution, a slide groove for linear sliding of the slider is provided on the lower half of the inner wall of the frame, and fixing columns are provided on both sides of the bottom of the slide groove on the inner wall of the frame.

[0010] In a preferred technical solution, the outer surface of the slider is provided with a first step and a second step, and an L-shaped lever is rotatably installed on the first step. The long and short arms of the lever are kept vertical, with the long arm of the lever at the bottom and the short arm at the top, and the connecting plate and the long arm of the lever are arranged on the same straight line.

[0011] In a preferred technical solution, a spring rod is provided on the second step, and the spring rod extends toward the shifting rod, and the spring rod is pushed by the shifting rod to slide elastically.

[0012] In a preferred technical solution, the lever slides linearly with the slider, and the lever touches the fixed columns on both sides of the inner side of the frame at the beginning and the end of the sliding stroke of the slider respectively to achieve angle flipping.

[0013] The beneficial effects of the utility model are:

[0014] The explosion-proof fan structure proposed in this scheme solves the problems of low explosion-proof performance and high energy consumption of explosion-proof fans. The positive and negative plates arranged in the wind cover can effectively insulate, and the oil stains inside the wind cover are cleaned regularly. Such a design can reduce the possibility of oil stains colliding and generating sparks, which is beneficial to improving explosion-proof performance, and can ensure the working efficiency of the fan, reduce energy consumption, and save energy and protect the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the explosion-proof fan proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the front view of the scraping mechanism assembly proposed in the utility model;

[0017] Figure 3 This is a bottom view structural diagram of the scraping mechanism assembly proposed by the utility model;

[0018] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0019] In the figure: 1. fan cover; 2. fan; 3. cathode plate; 4. anode plate; 5. recovery tank; 6. scraper mechanism assembly; 7. rotating roller; 8. slider; 9. connecting plate; 10. scraper; 11. control box; 12. transmission shaft; 13. transmission motor; 14. guide groove; 15. second step; 16. first step; 17. spring rod; 18. lever; 19. fixed column; 20. sliding ball. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] In this embodiment, refer to Figure 1-4 A new type of energy-saving explosion-proof fan includes a fan cover 1, a fan 2 is arranged in the internal channel of the fan cover 1, and a cathode plate 3 is arranged on the upper surface of the inner side of the air inlet of the fan cover 1, and an anode plate 4 is arranged on the lower surface. It should be supplemented that an insulating layer plate is arranged on the inner side of the cathode plate 3 and the anode plate. Figure 1 As shown, the fan cover 1 is provided with a recovery groove 5 for receiving dropped oil at the bottom of its anode plate 4. A triangular boss is provided above the anode plate 4, and the oil is guided to the recovery groove 5 through the triangular boss.

[0022] The top wall of the fan cover 1 is provided with a scraper mechanism assembly 6 below the cathode plate 3. The interior of the scraper mechanism assembly 6 is vertically penetrated. With such a design, the hanging oil stains can be directly dropped into the recovery tank 5 below. The scraper mechanism assembly 6 extends a scraper 10 upward from the interior thereof. The overall process is that the scraper 10 contacts the surface of the cathode plate 3 above in an oblique direction, and the scraper 10 moves back and forth along the length direction of the cathode plate 3 and scrapes off the oil stains adhering to the cathode plate 3.

[0023] The structure of the scraping mechanism assembly 6 is described in detail. Figure 2 or attached Figure 3 As shown, the scraping mechanism assembly 6 includes an external frame, and rotating rollers 7 are rotatably connected to the two sides of the frame. The roller surface of the rotating roller 7 is provided with a closed and disc-shaped winding guide groove 14, and the inner wall of the frame is slidably connected to the two sides of the slider 8. Figure 2 or attached Figure 4 As shown, the lower half of the inner wall of the frame is provided with a slide groove for the slider 8 to slide linearly, and the top of the slider 8 is provided with a slide ball 20 that extends into the guide groove 14 and slides along its groove. A reversible connecting plate 9 is connected between the sliders 8 on both sides through a bearing component, and the connecting plate 9 is fixedly connected to the scraper 10.

[0024] Control boxes 11 are respectively arranged on both sides of the outer wall on the same side of the frame, and two bevel gears for meshing transmission are arranged in each control box 11. The bevel gears opposite to each other in the two control boxes 11 are connected through a transmission shaft 12. The other bevel gears in the two control boxes 11 are respectively connected with the corresponding rotating rollers 7. A transmission motor 13 for controlling the meshing of the bevel gears is also arranged on one of the control boxes 11.

[0025] The two control boxes 11 keep synchronous rotation through the transmission between the bevel gears and control the two rotating rollers 7 in the frame to be in the same rotation state. Since the two sliders 8 are slidably matched with the guide grooves 14 on the rotating rollers 7 through the sliding balls 20, the sliders 8 on both sides will slide synchronously along a straight line. Since the scraper 10 is installed between the two sliders 8 through the connecting plate 9, the scraper 10 will also translate with it, and the scraper 10 is used to scrape the oil stains on the surface of the cathode plate 3.

[0026] Here, as attached Figure 2 As shown, the inner wall of the frame is also provided with fixing columns 19 on both sides of the bottom of the slideway. Figure 4 It can be seen that the outer surface of the slider 8 is provided with a first step 15 and a second step 16. An L-shaped lever 18 is rotatably mounted on the first step 15. The long and short arms of the lever 18 are kept vertical, the long arm of the lever 18 is at the bottom and the short arm is at the top, and the connecting plate 9 and the long arm of the lever 18 are arranged on the same straight line. It should be particularly noted that a spring rod 17 is arranged on the second step 16. The spring rod 17 extends toward the lever 18, and the lever 18 pushes the spring rod 17 to slide elastically. The lever 18 slides linearly with the slider 8, and the lever 18 touches the fixed columns 19 on both sides of the inner side of the frame at the beginning and end of the sliding stroke of the slider 8 respectively to achieve angle flipping.

[0027] There are two main processes for the scraper 10 to move back and forth with the slider 8. The first is to move forward in the direction of scraping off oil stains; the second is to retract. In the process of scraping off oil stains, the scraper 10 moves forward in the inclined direction and contacts the surface of the cathode plate 3 along the plate surface. Therefore, even if there are protruding parts on the cathode plate 3, it will not collide with the scraper 10, that is, the scraper 10 will not be damaged; in the process of retracting, the slider 8 slides to the end of the stroke, and the long arm of the lever 18 touches the fixed column 19 at the corresponding position and is pushed by the fixed column 19 to reverse the direction. At this time, the slide 8 slides in the opposite direction, and the inclination direction of the scraper 10 is also opposite to the original direction, that is, the scraper 10 retreats and contacts the surface of the cathode plate 3 along the plate surface, and no collision damage will occur. Such a design is conducive to protecting the scraper 10 and ensuring its normal use. Finally, it should be noted that the spring rod 17 is always pushed outward by the elastic force, and the spring rod 17 always touches the lever 18. When the lever 18 flips over, the spring rod 17 retracts. After the lever 18 moves to one side, the spring rod 17 continues to extend outward. The function of the spring rod 17 is to limit the position of the lever 18 to ensure that the lever 18 is fixed in position during the translation process. The fixed position of the lever 18 is the fixed position of the scraper 10. This design is conducive to scraping off oil stains.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A novel energy-saving explosion-proof fan, comprising a fan cover (1), wherein a fan (2) is arranged in an internal channel of the fan cover (1), wherein a cathode plate (3) is arranged on the upper surface of the inner side of the air inlet of the fan cover (1), and an anode plate (4) is arranged on the lower surface, wherein: The top wall of the fan cover (1) is provided with a scraping mechanism assembly (6) below the cathode plate (3), the interior of the scraping mechanism assembly (6) is vertically penetrated, and a scraper (10) extends upward from the interior of the scraping mechanism assembly (6), the scraper (10) contacts the surface of the cathode plate (3) above in an oblique direction, and the scraper (10) moves back and forth along the length direction of the cathode plate (3) and scrapes off the oil stains adhering to the cathode plate (3); The scraping mechanism assembly (6) comprises an external frame, wherein rotating rollers (7) are rotatably connected to the two sides of the frame, and the roller surfaces of the rotating rollers (7) are provided with closed guide grooves (14) that maintain a disc-like winding shape. Slide blocks (8) are slidably connected to the two sides of the inner wall of the frame, and the top of the slide block (8) is provided with a sliding ball (20) that extends into the guide groove (14) and slides along the groove. A reversible connecting plate (9) is connected between the slide blocks (8) on both sides via a bearing component, and the connecting plate (9) is fixedly connected to the scraper (10).

2. A new energy-saving explosion-proof fan according to claim 1, characterized in that: The fan cover (1) is provided with a recovery tank (5) at the bottom of the anode plate (4) thereof for receiving dropped oil stains.

3. A new energy-saving explosion-proof fan according to claim 1, characterized in that: Control boxes (11) are respectively arranged on both sides of the outer wall of the frame on the same side, and two bevel gears for meshing transmission are arranged in each of the control boxes (11). The bevel gears facing each other in the two control boxes (11) are connected to each other through a transmission shaft (12). The other bevel gears in the two control boxes (11) are respectively connected to the corresponding rotating rollers (7). A transmission motor (13) for controlling the meshing of the bevel gears is also arranged on one of the control boxes (11).

4. A new energy-saving explosion-proof fan according to claim 1, characterized in that: The lower half of the inner wall of the frame is provided with a slide groove for the slider (8) to slide linearly, and the inner wall of the frame is also provided with fixing columns (19) at both sides of the bottom of the slide groove.

5. A new energy-saving explosion-proof fan according to claim 4, characterized in that: The outer surface of the slider (8) is provided with a first step (15) and a second step (16); an L-shaped lever (18) is rotatably mounted on the first step (15); the long and short arms of the lever (18) are kept vertical; the long arm of the lever (18) is located at the bottom and the short arm is located at the top; the connecting plate (9) and the long arm of the lever (18) are arranged on the same straight line.

6. A new energy-saving explosion-proof fan according to claim 5, characterized in that: A spring rod (17) is arranged on the second step (16), and the spring rod (17) extends toward the direction of the shifting rod (18), and the spring rod (17) is pushed by the shifting rod (18) to slide elastically.

7. A new energy-saving explosion-proof fan according to claim 5, characterized in that: The lever (18) slides linearly along with the slider (8), and the lever (18) touches the fixed columns (19) on both sides of the inner side of the frame at the beginning and the end of the sliding stroke of the slider (8) respectively to achieve angle flipping.

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