Industrial fan

Abstract

The utility model belongs to the technical field of fans, and particularly relates to an industrial fan which comprises a shell, outer ring plates are fixedly connected to the two sides of the shell, a motor is installed in the shell, fan blades are fixedly connected to the output end of the motor, the fan blades are arranged in an annular array mode, filter screens are installed on the two sides of the shell, and trapezoid blocks are fixedly connected to the outer surfaces of the filter screens. The trapezoidal blocks are arranged in an annular array mode, connecting grooves are formed in the inner sides of the trapezoidal blocks, a clamping plate is fixedly connected between the two connecting grooves, trapezoidal grooves matched with the trapezoidal blocks are formed in the outer annular plate, connecting blocks are fixedly connected into the trapezoidal grooves, and the two connecting blocks are located in the two connecting grooves and movably connected with the two connecting grooves. Clamping grooves are formed in the inner sides of the two groups of connecting blocks, and the two groups of clamping grooves are trapezoidal. According to the industrial fan, the purpose of disassembling the filter screen at any time can be achieved, the mode is easy to operate, external tools are not needed, and then the filter screen can be conveniently replaced, overhauled, cleaned and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan technical field especially relates to an industrial fan. BACKGROUND

[0002] Industrial fan is used for conveying, exhaust, ventilation or heating and cooling and other industrial processing equipment, usually adopts axial or centrifugal design, it is widely used in machinery, chemical industry, building industry to provide strong airflow energy, satisfy the air flow and static pressure required in different production and processing environment, according to the working characteristic and processing demand can be classified as axial fan, centrifugal fan and gas type fan.

[0003] Axial fan is through impeller rotation to produce airflow, and gas is transported from one place to another, it has simple structure, energy saving and environmental protection and high reliability, at present, both sides of axial fan are equipped with filter screen, can filter some impurities and pollutants, make the air transported by fan more clean and safe, ensure the quality of product and the stability of production process, but since filter screen is generally fixed on fan by annular array bolt, when filter screen is disassembled, professional tool is needed, therefore, filter screen cannot be replaced at any time, and it has the problem of difficult disassembly, in addition, axial fan generates strong airflow noise when running, airflow noise can cause influence on surrounding environment and human health.

[0004] Therefore, an industrial fan is needed to solve the above problems.

[0005] At present, the existing industrial fan gradually finds the following defects in the use process:

[0006] 1) filter screen is disassembled by bolt, needs to use professional tool, and has the problem of difficult disassembly;

[0007] 2) axial fan generates airflow noise when running, which can cause influence on surrounding environment and human body. INVENTION CONTENTS

[0008] In order to overcome the defects of the prior art pointed out above, the present inventors have made in-depth research, and after paying a lot of creative labor, the utility model is completed.

[0009] Specifically, the technical problem to be solved by the utility model is to provide an industrial fan to solve the technical problem that filter screen is disassembled by bolt at present, professional tool is needed, and there is the problem of difficult disassembly.

[0010] In order to solve the above technical problems, the utility model provides the following technical scheme:

[0011] An industry fan, including a shell, both sides of the shell are fixedly connected with an outer ring plate, the inside of the shell is installed with a motor, the output end of the motor is fixedly connected with a fan blade, the fan blade is arranged in an annular array, both sides of the shell are installed with a filter screen, the filter screen is located on the inside of the outer ring plate, the outer surface of the filter screen is fixedly connected with a trapezoidal block, the trapezoidal block is arranged in an annular array, the inside of the trapezoidal block is provided with a connecting groove, the connecting groove is provided with two groups, and the two groups correspond to each other, the connecting groove is fixedly connected with a clamping plate between the two groups, the clamping plate is provided with two groups, and the two groups correspond to each other, the inside of the outer ring plate is provided with a trapezoidal groove which is adapted to the trapezoidal block, the inside of the trapezoidal groove is fixedly connected with a connecting block, the connecting block is provided with two groups, and the two groups correspond to each other, the two groups of the connecting block are located in the inside of the two groups of the connecting groove and are movably connected with the two groups of the connecting groove, the inside of the two groups of the connecting block is provided with a clamping groove, and the two groups of the clamping groove are trapezoidal.

[0012] As an improved technical solution, the inside of the trapezoidal block is installed with a clamping block, the clamping block is located between the two groups of the clamping plate, one end of the trapezoidal block penetrates through the trapezoidal block and extends to the inside of the trapezoidal groove and is located in the inside of the two groups of the clamping groove.

[0013] As an improved technical solution, one end of the clamping block away from the trapezoidal block is fixedly connected with an L-shaped rod, the other end of the L-shaped rod is fixedly connected with a sleeve ring, the inside of the sleeve ring is movably connected with a bolt.

[0014] As an improved technical solution, the outer surface of the outer ring plate is provided with a threaded groove, the threaded groove is arranged in an annular array, one end of the bolt penetrates through the sleeve ring and extends to the inside of the threaded groove and is threadedly connected with the threaded groove, one end of the bolt away from the outer ring plate is fixedly connected with a knob, and the outer surface of the knob is installed with an annular array of rubber strips.

[0015] As an improved technical solution, the inside of the shell is installed with a silica gel sleeve, the inside of the silica gel sleeve is provided with a circular groove and a V-shaped groove, the V-shaped groove is provided with two groups and is located on both sides of the silica gel sleeve, and the circular groove is located between the two groups of the V-shaped groove.

[0016] As an improved technical solution, the circular groove and the V-shaped groove are arranged in an annular array, and the inside of the circular groove and the V-shaped groove are communicated.

[0017] As an improved technical solution, the inside of the silica gel sleeve is provided with a recess, the bottom of the motor is fixedly connected with a base, and the bottom of the base extends to the inside of the shell through the recess and is fixedly connected with the shell.

[0018] After the above technical scheme is adopted, the beneficial effects of the present application are:

[0019] 1. The utility model discloses a filter screen can be disassembled at any time, and the operation is simple, and the filter screen can be replaced, overhauled, cleaned and the like conveniently without the help of external tools.

[0020] 2. The utility model discloses a plurality of fan blades are arranged, the stress state of each fan blade group can be balanced, the stress of single fan blade can be reduced, mechanical vibration is reduced, thereby the generation of noise can be reduced, the use of silica gel cover, circular groove and V-shaped groove can effectively disperse, absorb and reduce airflow noise, thereby better noise reduction effect is reached. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will be briefly introduced to the drawing needed to be used in the embodiment description, obviously, the drawing in the following description is only some embodiments of the utility model, for the ordinary skilled person in the art, under the premise of not paying the creative labor, other drawings can also be obtained according to these drawings. Wherein:

[0022] Figure 1 It is the overall structure schematic diagram of the utility model industrial fan.

[0023] Figure 2 It is the cross-sectional structure schematic diagram of the utility model industrial fan.

[0024] Figure 3 It is the explosion structure schematic diagram of the utility model industrial fan.

[0025] Figure 4 It is the filter screen related structure schematic diagram of the utility model industrial fan.

[0026] Figure 5 It is the trapezoidal block and the relevant structure schematic diagram of the utility model industrial fan.

[0027] Figure 6 It is the A part enlarged structure schematic diagram of the utility model industrial fan. Figure 3

[0028] Figure 7 It is the silica gel cover structure schematic diagram of the utility model industrial fan.

[0029] BRIEF DESCRIPTION OF DRAWINGS

[0030] ​1, shell; 2, outer ring plate; 3, motor; 4, fan blade; 5, filter screen; 6, trapezoidal block; 7, connecting groove; 8, clamping plate; 9, trapezoidal groove; 10, connecting block; 11, clamping groove; 12, clamping block; 13, L-shaped rod; 14, collar; 15, bolt; 16, knob; 17, threaded groove; 18, silica gel sleeve; 19, circular groove; 20, V-shaped groove; 21, groove; 22, base. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0032] It should be noted that all the directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the utility model are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directionality indications will also change accordingly.

[0033] Meanwhile, "and / or" or "and / or" appearing throughout the text means that it includes three schemes, taking "A and / or B" as an example, including A scheme, or B scheme, or A and B schemes.

[0034] In addition, the description of "first", "second" and the like in the utility model is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0035] As Figures 1 to 7 As shown in the drawings, the embodiment provides an industrial fan, the industrial fan includes a shell 1, both sides of the shell 1 are fixedly connected with an outer ring plate 2, a motor 3 is installed in the shell 1, a fan blade 4 is fixedly connected to the output end of the motor 3, the fan blade 4 is arranged in an annular array, a filter screen 5 is installed on both sides of the shell 1, the filter screen 5 is located on the inner side of the outer ring plate 2, the fan blade 4 is arranged as multiple groups, and the stress state of each fan blade 4 group is balanced, so that the stress of a single fan blade 4 is reduced, mechanical vibration is reduced, and the generation of noise can be reduced;

[0036] The outer surface of the filter screen 5 is fixedly connected with trapezoidal blocks 6, the trapezoidal blocks 6 are arranged in an annular array, the inner side of the trapezoidal blocks 6 is provided with connecting grooves 7, the connecting grooves 7 are provided in two groups and correspond to each other, and the two groups of connecting grooves 7 are fixedly connected with clamping plates 8 provided in two groups and corresponding to each other;

[0037] The inner part of the outer ring plate 2 is provided with trapezoidal grooves 9 adapted to the trapezoidal blocks 6, the inner part of the trapezoidal grooves 9 is fixedly connected with connecting blocks 10 provided in two groups and corresponding to each other, the two groups of connecting blocks 10 are located in the inner part of the two groups of connecting grooves 7 and are movably connected therewith, and the inner side of the two groups of connecting blocks 10 is provided with clamping grooves 11, the two groups of clamping grooves 11 are trapezoidal in shape, the trapezoidal blocks 6 are located in the inner part of the trapezoidal grooves 9, and the connecting grooves 7 and the connecting blocks 10 are adapted to each other, so that the filter screen 5 can be preliminarily installed and positioned.

[0038] The trapezoidal blocks 6 are provided with clamping blocks 12 located between the two groups of clamping plates 8, one end of the trapezoidal blocks 6 penetrates the trapezoidal blocks 6 and extends into the inner part of the trapezoidal grooves 9 and is located in the inner part of the two groups of clamping grooves 11, and the clamping blocks 12 are composed of two groups of trapezoidal plates, which can fix the trapezoidal blocks 6 and the outer ring plate 2 and make the connection of the two more stable.

[0039] One end of the clamping blocks 12 away from the trapezoidal blocks 6 is fixedly connected with L-shaped rods 13, the other end of the L-shaped rods 13 is fixedly connected with a sleeve ring 14, the inner part of the sleeve ring 14 is movably connected with a bolt 15, and the L-shaped rods 13 can facilitate the driving operation of the clamping blocks 12.

[0040] The outer surface of the outer ring plate 2 is provided with screw grooves 17 arranged in an annular array, one end of the bolt 15 penetrates the sleeve ring 14 and extends into the inner part of the screw grooves 17 and is screw-connected therewith, so as to position and lock the clamping blocks 12 and further ensure the stability of the connection between the trapezoidal blocks 6 and the outer ring plate 2;

[0041] One end of the bolt 15 away from the outer ring plate 2 is fixedly connected with a knob 16, the outer surface of the knob 16 is provided with annularly arranged rubber strips, so as to facilitate the driving of the knob 16 and further facilitate the driving operation of the bolt 15, and this way does not need to rely on external equipment, and in addition, the diameter of the knob 16 is greater than that of the sleeve ring 14, which can avoid the separation of the bolt 15 and the sleeve ring 14.

[0042] The inner side of the shell 1 is provided with a silica gel sleeve 18, the inner side of the silica gel sleeve 18 is provided with a circular groove 19 and a V-shaped groove 20, the V-shaped groove 20 is provided with two groups, and is respectively located at the two sides of the silica gel sleeve 18, and the circular groove 19 is located between the two groups of V-shaped grooves 20. The silica gel sleeve 18 is installed on the inner side of the shell 1, which can increase the thickness of the sound insulation material, effectively reduce the noise sensitivity to the external environment, and the relatively soft physical characteristics of the silica gel sleeve 18 can better absorb noise and reduce the generation of noise. At the same time, the interface generated at the boundary of the V-shaped groove 20 can absorb noise and cause bending reflection therein. The circular groove 19 can reflect, scatter and absorb noise by the principle of reflection and scattering, so that the air flow field can flow more smoothly, and the noise of air control can be reduced.

[0043] The circular groove 19 and the V-shaped groove 20 are arranged in a circular array, the circular groove 19 and the V-shaped groove 20 are communicated with each other, and the circular groove 19 and the V-shaped groove 20 are equidistant and arranged in a circular array, which can increase the sound insulation area, and make the sound waves continuously reflect, scatter and absorb between the circular groove 19 and the V-shaped groove 20, so as to weaken the propagation intensity of the sound waves and achieve the effect of noise reduction. Through the communication between the circular groove 19 and the V-shaped groove 20, the circular groove 19 and the V-shaped groove 20 can effectively disperse, absorb and reduce the energy of sound, so as to achieve better noise reduction effect.

[0044] The inner side of the silica gel sleeve 18 is provided with a recess 21, the bottom of the motor 3 is fixedly connected with a base 22, the bottom of the base 22 extends to the inner side of the shell 1 through the recess 21 and is fixedly connected with the shell 1, so as to support the motor 3 and avoid the problem that the vibration generated by the motor 3 during work affects the silica gel sleeve 18.

[0045] When the filter screen 5 is disassembled, the knob 16 is reversely rotated to drive the bolt 15 to slowly move along the inner side of the threaded groove 17 and be disconnected with the threaded groove 17, then the L-shaped rod 13 is pulled to drive the clamping block 12 to be disconnected with the trapezoidal block 6 and the trapezoidal groove 9, and the filter screen 5 is pulled to drive the trapezoidal block 6 to be disconnected with the trapezoidal groove 9, so that the disassembly of the filter screen 5 is completed. When the filter screen 5 is installed, the operation is opposite. In this way, the filter screen 5 can be disassembled at any time, and the operation is simple without the aid of external tools, so that the replacement, maintenance and cleaning of the filter screen 5 can be facilitated.

[0046] Through the arrangement of multiple groups of fan blades 4, the stress state of each group of fan blades 4 is balanced, so that the stress of a single fan blade 4 is reduced, and the mechanical vibration is reduced, so that the generation of noise can be reduced. In combination with the use of the silica gel sleeve 18, the circular groove 19 and the V-shaped groove 20, the airflow noise can be more effectively dispersed, absorbed and reduced, so that better noise reduction effect can be achieved.

[0047] It should be understood that the use of these embodiments is by way of illustration only and is not intended to limit the scope of the present application. In addition, it should also be understood that, after reading the technical content of the present application, those skilled in the art can make various modifications, modifications and / or variations to the present application, and all of these equivalent forms also fall within the protection scope defined by the claims attached to the present application.

Claims

1. An industrial fan characterized by: Including the shell (1), both sides of the shell (1) are fixedly connected with the outer ring plate (2), the inside of the shell (1) is installed with the motor (3), the output end of the motor (3) is fixedly connected with the fan blade (4), the fan blade (4) is arranged in an annular array, both sides of the shell (1) are installed with the filter screen (5), the filter screen (5) is located at the inside of the outer ring plate (2); The outer surface of the filter screen (5) is fixedly connected with the trapezoidal block (6), the trapezoidal block (6) is arranged in an annular array, the inside of the trapezoidal block (6) is provided with the connecting groove (7), the connecting groove (7) is provided with two groups, and they correspond to each other, the two groups of connecting grooves (7) are fixedly connected with the clamping plate (8), the clamping plate (8) is provided with two groups, and they correspond to each other; The inside of the outer ring plate (2) is provided with the trapezoidal groove (9) adapted to the trapezoidal block (6), the inside of the trapezoidal groove (9) is fixedly connected with the connecting block (10), the connecting block (10) is provided with two groups, and they correspond to each other, the two groups of connecting blocks (10) are located in the inside of the two groups of connecting grooves (7) and are movably connected with them, the inside of the two groups of connecting blocks (10) is provided with the clamping groove (11), and the two groups of clamping grooves (11) are trapezoidal.

2. The industrial fan of claim 1, wherein: The inside of the trapezoidal block (6) is installed with the clamping block (12), the clamping block (12) is located between the two groups of clamping plates (8), one end of the trapezoidal block (6) penetrates the trapezoidal block (6) and extends to the inside of the trapezoidal groove (9) and is located in the inside of the two groups of clamping grooves (11).

3. The industrial fan of claim 2, wherein: One end of the clamping block (12) away from the trapezoidal block (6) is fixedly connected with the L-shaped rod (13), the other end of the L-shaped rod (13) is fixedly connected with the sleeve ring (14), the inside of the sleeve ring (14) is movably connected with the bolt (15).

4. The industrial fan of claim 3, wherein: The outer surface of the outer ring plate (2) is provided with the threaded groove (17), the threaded groove (17) is arranged in an annular array, one end of the bolt (15) penetrates the sleeve ring (14) and extends to the inside of the threaded groove (17) and is threadedly connected with it; One end of the bolt (15) away from the outer ring plate (2) is fixedly connected with the knob (16), the outer surface of the knob (16) is installed with the annular array of rubber strips.

5. The industrial fan of claim 1, wherein: The inside of the shell (1) is installed with the silica gel sleeve (18), the inside of the silica gel sleeve (18) is provided with the circular groove (19) and the V-shaped groove (20), the V-shaped groove (20) is provided with two groups and is located at both sides of the silica gel sleeve (18), and the circular groove (19) is located between the two groups of V-shaped grooves (20).

6. The industrial fan of claim 5, wherein: The circular groove (19) and the V-shaped groove (20) are arranged in an annular array, and the inside of the circular groove (19) and the V-shaped groove (20) communicates.

7. The industrial fan of claim 6, wherein: The inside of the silica gel sleeve (18) is provided with the recess (21), the bottom of the motor (3) is fixedly connected with the base (22), and the bottom of the base (22) extends to the inside of the shell (1) through the recess (21) and is fixedly connected with it.

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