Light explosion-proof fan

Abstract

The utility model belongs to the field of anti-explosion fans, and particularly relates to a light anti-explosion fan which comprises an anti-explosion fan body, gear rings are rotationally installed at the two ends of the anti-explosion fan body respectively, cross rods are fixedly installed on the two side walls in the two gear rings respectively, and mounting holes are formed in the surfaces of one sides of the two cross rods respectively. Cleaning strips are detachably mounted in the two sets of mounting holes, brushes are arranged on the surfaces of the sides, located on the protection plate, of the two sets of cleaning strips, when the fan works, the two sets of gear rings can be driven to rotate at the two ends of the fan at the same time, and the cross rod can be driven to rotate while rotating; during rotation, a brush arranged on a cleaning strip mounted in a mounting hole brushes a protection plate, impurities adsorbed on the protection plate are brushed off, and therefore the problems that a large amount of dust and impurities are adsorbed in the fan during working, if cleaning is not conducted in time, the fan breaks down and cannot be used, and the service life of the fan is prolonged are solved. And the service life of the fan is shortened.

Description

Technical Field

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

[0002] Explosion-proof fans are general-purpose fans for conveying flammable and explosive gases. Fans are machines that convert rotational mechanical energy into gas pressure energy and kinetic energy and convey the gas. Fans are mainly divided into two types: axial flow fans and centrifugal fans. Axial flow fans are widely used in various fields of industrial production due to their simple structure and easy installation.

[0003] Due to some fan working environment reasons, such as more dust and impurities in the air, the fan will absorb a lot of dust and impurities inside when it is working. If it is not cleaned in time, the fan will malfunction and cannot be used, thereby reducing the service life of the fan; therefore, a lightweight explosion-proof fan is proposed to address the above problems. Utility Model Content

[0004] In order to make up for the shortcomings of the prior art, due to some fan working environment reasons, such as more dust and impurities in the air, the fan will absorb a lot of dust and impurities inside when working. If they are not cleaned in time, the fan will malfunction and cannot be used, thereby reducing the service life of the fan. The utility model proposes a lightweight explosion-proof fan.

[0005] The technical solution adopted by the utility model to solve its technical problems is: the utility model describes a light explosion-proof fan, including an explosion-proof fan body, protective plates are fixed on the inner sides of both ends of the explosion-proof fan body, and multiple groups of ventilation holes are provided on the upper surfaces of two groups of the protective plates, gear rings are rotatably installed on both ends of the explosion-proof fan body, cross bars are fixedly installed on both side walls of the two groups of gear rings, mounting holes are provided on one side surface of the two groups of cross bars, the two groups of mounting holes are set as rectangles, cleaning strips can be detachably installed in the two groups of mounting holes, and brushes are provided on one side surface of the two groups of cleaning strips located on the protective plates.

[0006] Preferably, the surfaces at both ends of the explosion-proof fan body are provided with connecting grooves in a circular shape, and the surfaces on one side of the two groups of gear rings are fixedly connected with connecting rings corresponding to the connecting grooves, and the two groups of connecting grooves are rotatably embedded in the two groups of connecting grooves respectively.

[0007] Preferably, both ends of the two groups of cross bars are provided with raised blocks on one side surface of the protective plate, the opposite side surfaces of the two groups of raised blocks are fixedly connected to the limiting plates, the one side surfaces of the two groups of limiting plates are provided with screw holes, and both ends of the two groups of cleaning strips are rotatably penetrated by bolts corresponding to the screw holes.

[0008] Preferably, a rotating rod is provided above both ends of the explosion-proof fan body, and support plates are rotatably penetrated at both ends of the rotating rod. The lower surfaces of the two groups of support plates are fixedly connected to the upper surfaces of the two ends of the explosion-proof fan body, and gears are fixedly installed on the surfaces of both ends of the rotating rod, and the two groups of gears are respectively engaged with the teeth on the gear ring.

[0009] Preferably, a mounting groove is provided in the middle of the upper surface of the explosion-proof fan body, a worm wheel is fixedly passed through the rotating rod at the mounting groove, a worm is meshed with teeth at the bottom of the worm wheel, and the worm is located in the mounting groove.

[0010] Preferably, both ends of the worm are rotatably penetrated by side plates, the lower surfaces of the two groups of side plates are respectively fixedly connected to the upper surfaces of the mounting grooves, and a motor for driving the worm to rotate is fixedly installed on one side of one group of side plates.

[0011] The utility model is beneficial in that:

[0012] 1. The utility model can block some larger impurities in the air through the protective plate, while the ventilation holes can allow the air to circulate normally. When the fan is working, the two sets of gear rings can be driven to rotate at both ends of the fan at the same time, and the rotation will drive the cross bar to rotate. During the rotation, the brush arranged on the cleaning strip installed in the mounting hole will brush the protective plate to brush off the impurities adsorbed on the protective plate. The cleaning strip can be detachably installed, and it can be disassembled and replaced according to the wear degree of the brush, thereby solving the problem that due to the working environment of some fans, for example, there are more dust and impurities in the air, which makes the fan absorb a lot of dust and impurities inside when it is working. If it is not cleaned in time, it will cause the fan to malfunction and cannot be used, thereby reducing the service life of the fan.

[0013] 2. The utility model uses a fixed connection between the gear ring and the connecting ring, and since the connecting ring is rotatably connected in the connecting groove, the gear ring is rotatably installed on the explosion-proof fan body. The cleaning strip is placed in the mounting hole, and one side surface of both ends is fitted with one side surface of the two sets of limit plates. The bolts are then turned to lock them in the screw holes to fix the cleaning strip. When disassembling, the bolts can be released to remove it, which is convenient for disassembly and installation. By starting the motor, the motor will drive the worm to rotate when it is working, and the worm will drive the worm wheel to rotate when the worm rotates. Due to the fixed connection between the worm wheel and the worm, when the worm wheel rotates, the rotating rod will be driven to rotate together. The rotation of the rotating rod will drive the two sets of gears to rotate at the same time. When the two sets of gears rotate, they will drive the two sets of gear rings to rotate at the same time, thereby achieving the purpose of driving the gear ring to rotate for cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 4 It is a partial structural schematic diagram of the utility model.

[0019] In the figure: 1. explosion-proof fan body; 2. protective plate; 3. ventilation hole; 4. connecting groove; 5. connecting ring; 6. gear ring; 7. cross bar; 8. mounting hole; 9. limit plate; 10. cleaning strip; 11. brush; 12. screw hole; 13. bolt; 14. support plate; 15. gear; 16. rotating rod; 17. mounting groove; 18. worm gear; 19. worm; 20. side panel; 21. motor. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-Figure 4 As shown, a light explosion-proof fan comprises an explosion-proof fan body 1, protective plates 2 are fixed on the inner sides of both ends of the explosion-proof fan body 1, and multiple groups of ventilation holes 3 are provided on the upper surfaces of two groups of protective plates 2, gear rings 6 are rotatably installed on both ends of the explosion-proof fan body 1, cross bars 7 are fixedly installed on both side walls of the two groups of gear rings 6, mounting holes 8 are provided on one side surface of the two groups of cross bars 7, and the two groups of mounting holes 8 are arranged in rectangles, and cleaning strips 10 can be detachably installed in the two groups of mounting holes 8, and the two groups of cleaning strips 10 are provided with brushes 11 on one side surface of the protective plate 2.

[0022] During operation, some larger impurities in the air can be blocked by the protective plate 2, while the vent holes 3 allow the air to circulate normally. When the fan is working, the two sets of gear rings 6 can be driven to rotate at both ends of the fan at the same time, and the cross bar 7 will be driven to rotate while rotating. During rotation, the brush 11 provided on the cleaning strip 10 installed in the mounting hole 8 will brush the protective plate 2 to brush off the impurities adsorbed on the protective plate 2. The cleaning strip 10 is detachable and can be removed and replaced according to the wear degree of the brush 11, thereby solving the problem that due to some working environments of the fan, for example, there are more dust and impurities in the air, which causes a lot of dust and impurities to be adsorbed inside the fan when it is working. If it is not cleaned in time, the fan will malfunction and cannot be used, thereby reducing the service life of the fan.

[0023] Furthermore, connection grooves 4 are formed in a circular pattern on the surfaces of both ends of the explosion-proof fan body 1, and connection rings 5 ​​corresponding to the connection grooves 4 are fixedly connected to one side surface of the two sets of gear rings 6, and the two sets of connection grooves 4 are rotatably embedded in the two sets of connection grooves 4 respectively.

[0024] During operation, the gear ring 6 is fixedly connected to the connecting ring 5 , and the connecting ring 5 is rotatably connected in the connecting groove 4 , so that the gear ring 6 is rotatably mounted on the explosion-proof fan body 1 .

[0025] Furthermore, both ends of the two groups of cross bars 7 are provided with raised blocks on one side surface of the protective plate 2, and the opposite side surfaces of the two groups of raised blocks are fixedly connected to the limiting plate 9. The one side surface of the two groups of limiting plates 9 is provided with screw holes 12, and both ends of the two groups of cleaning strips 10 are rotatably penetrated by bolts 13 corresponding to the screw holes 12.

[0026] During operation, the cleaning strip 10 is placed in the mounting hole 8, and one side surface of the two ends is fitted with one side surface of the two sets of limit plates 9. Then the bolts 13 are turned to lock them in the screw holes 12 to fix the cleaning strip 10. When disassembling, the bolts 13 can be released to remove it, which is convenient for disassembly and installation.

[0027] Furthermore, a rotating rod 16 is provided above both ends of the explosion-proof fan body 1, and support plates 14 are rotatably penetrated at both ends of the rotating rod 16. The lower surfaces of the two groups of support plates 14 are fixedly connected to the upper surfaces of the two ends of the explosion-proof fan body 1, and gears 15 are fixedly installed on the surfaces of both ends of the rotating rod 16, and the two groups of gears 15 are respectively engaged with the teeth on the gear ring 6.

[0028] During operation, the two sets of gears 15 are driven to rotate by driving the rotating rod 16 to rotate simultaneously, and the two sets of gears 15 are driven to rotate the two sets of gear rings 6 simultaneously, thereby achieving the purpose of driving the gear rings 6 to rotate for cleaning.

[0029] Furthermore, a mounting groove 17 is opened in the middle of the upper surface of the explosion-proof fan body 1 , and a worm wheel 18 is fixedly passed through the rotating rod 16 at the mounting groove 17 , and a worm 19 is meshed with teeth at the bottom of the worm wheel 18 , and the worm 19 is located in the mounting groove 17 .

[0030] During operation, the worm 19 is driven to rotate, and the worm wheel 18 is driven to rotate when the worm 19 rotates. Since the worm wheel 18 is fixedly connected to the worm 19 , the rotating rod 16 is driven to rotate when the worm wheel 18 rotates.

[0031] Furthermore, both ends of the worm 19 are rotatably penetrated by side plates 20 , the lower surfaces of the two groups of side plates 20 are respectively fixedly connected to the upper surfaces of the mounting grooves 17 , and one side of one group of side plates 20 is fixedly mounted with a motor 21 for driving the worm 19 to rotate.

[0032] During operation, by starting the motor 21 to work, the motor 21 drives the worm 19 to rotate, thereby achieving the purpose of electric cleaning.

[0033] Working principle: some larger impurities in the air can be blocked by the protective plate 2, while the air holes 3 allow the air to circulate normally. When the fan is working, the two sets of gear rings 6 can be driven to rotate at both ends of the fan at the same time, and the rotation will drive the cross bar 7 to rotate. During the rotation, the brush 11 set on the cleaning strip 10 installed in the mounting hole 8 will brush the protective plate 2 to brush off the impurities adsorbed on the protective plate 2. The cleaning strip 10 is detachable and can be removed and replaced according to the wear degree of the brush 11.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A lightweight explosion-proof fan, comprising an explosion-proof fan body (1), characterized in that: Protective plates (2) are fixed on the inner sides of both ends of the explosion-proof fan body (1), and multiple groups of ventilation holes (3) are provided on the upper surfaces of the two groups of protective plates (2). Gear rings (6) are rotatably installed on both ends of the explosion-proof fan body (1), and cross bars (7) are fixedly installed on the inner side walls of the two groups of gear rings (6). Mounting holes (8) are provided on one side surface of the two groups of cross bars (7), and the two groups of mounting holes (8) are arranged in a rectangular shape. Cleaning strips (10) can be detachably installed in the two groups of mounting holes (8), and brushes (11) are provided on one side surface of the two groups of cleaning strips (10) located on the protective plates (2).

2. A lightweight explosion-proof fan according to claim 1, characterized in that: The surfaces of both ends of the explosion-proof fan body (1) are provided with connecting grooves (4) in a circular manner, and the surfaces of one side of the two groups of gear rings (6) are fixedly connected with connecting rings (5) corresponding to the connecting grooves (4), and the two groups of connecting grooves (4) are rotatably embedded in the two groups of connecting grooves (4) respectively.

3. A lightweight explosion-proof fan according to claim 2, characterized in that: Both ends of the two groups of cross bars (7) are provided with raised blocks on one side surface of the protective plate (2), and the surfaces of the two groups of raised blocks on the opposite side are fixedly connected to the limit plate (9), and the surfaces of the two groups of limit plates (9) on one side are provided with screw holes (12), and both ends of the two groups of cleaning strips (10) are rotatably penetrated by bolts (13) corresponding to the screw holes (12).

4. A lightweight explosion-proof fan according to claim 3, characterized in that: A rotating rod (16) is provided above both ends of the explosion-proof fan body (1), and support plates (14) are rotatably penetrated at both ends of the rotating rod (16). The lower surfaces of two groups of the support plates (14) are fixedly connected to the upper surfaces of both ends of the explosion-proof fan body (1), and gears (15) are fixedly installed on the surfaces of both ends of the rotating rod (16), and the two groups of gears (15) are respectively engaged with the teeth on the gear ring (6).

5. A lightweight explosion-proof fan according to claim 4, characterized in that: A mounting groove (17) is provided in the middle of the upper surface of the explosion-proof fan body (1), a worm wheel (18) is fixedly passed through the rotating rod (16) at the mounting groove (17), a worm (19) is meshed with teeth at the bottom of the worm wheel (18), and the worm (19) is located in the mounting groove (17).

6. A lightweight explosion-proof fan according to claim 5, characterized in that: Both ends of the worm (19) are rotatably penetrated by side plates (20), the lower surfaces of the two groups of side plates (20) are respectively fixedly connected to the upper surfaces of the mounting grooves (17), and a motor (21) for driving the worm (19) to rotate is fixedly installed on one side of one group of side plates (20).

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