Safe corrosion-resistant fan

Abstract

The utility model discloses a safe corrosion-resistant fan, belongs to the technical field of fans, and solves the problems that impurities are easy to adhere to a stainless steel corrosion-resistant filter screen of an existing device, the impurities can prevent external air from passing through the stainless steel corrosion-resistant filter screen, and the blowing effect of blowing is reduced. An air outlet pipe and an air inlet pipe are arranged on the top face and the side face of the shell correspondingly, a filter screen and an impurity discharging pipe are arranged in the air inlet pipe and on the bottom face of the air inlet pipe correspondingly, a motor is fixedly installed on the side, away from the air inlet pipe, of the shell, and a transmission shaft of the motor penetrates through the side wall of the shell to be fixedly connected with a wind wheel. An impurity cleaning assembly is arranged in the shell, a first connecting rod is driven by a motor to rotate, then a reset spring can be repeatedly stretched and contracted, when the reset spring contracts, the elastic force of the reset spring drives a second annular plate to impact a short rod, then a filter screen on the second annular plate is vibrated, and the filter screen is cleaned. Impurities attached to the filter screen can be shaken down, and the air blowing effect of the fan can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of corrosion-resistant fans, in particular to a safe corrosion-resistant fan. Background Art

[0002] A wind wheel is arranged inside the fan casing, and a motor for driving the wind wheel to rotate is installed on the casing. The rotation of the wind wheel increases the flow rate of the air inside the casing, and then the external air enters the casing through the air inlet pipe and is then discharged through the exhaust pipe.

[0003] After searching, the application with patent number 202322091278.1 discloses a safe and corrosion-resistant fan, including: a stainless steel shell and a motor, the motor is fixed on the stainless steel shell, the rotating shaft of the motor is connected to a stainless steel wind wheel, the stainless steel shell is provided with an air inlet pipe and an air outlet pipe, the lower end of the air inlet pipe is provided with a waste pipe, and the waste pipe is threadedly connected to a collecting cover;

[0004] Although the safe and corrosion-resistant fan uses a stainless steel anti-corrosion filter to filter impurities in the air and can filter the gas while preventing impurities from entering the interior of the corrosion-resistant fan and damaging the first and second anti-corrosion coatings, impurities are easily attached to the stainless steel anti-corrosion filter of the safe and corrosion-resistant fan. The impurities will hinder the external air from passing through the stainless steel anti-corrosion filter, resulting in a reduction in the blowing effect.

[0005] Therefore, we proposed a safe and corrosion-resistant fan. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a safe and corrosion-resistant blower, which solves the problem that impurities are easily attached to the stainless steel anti-corrosion filter of the prior device, which impurities will hinder the external air from passing through the stainless steel anti-corrosion filter, resulting in reduced blowing effect.

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a safe and corrosion-resistant fan, comprising a shell, the top surface and side surface of the shell are respectively provided with an air outlet pipe and an air inlet pipe, the interior and bottom surface of the air inlet pipe are respectively provided with a filter screen and a debris discharge pipe, a motor is fixedly installed on the side of the shell away from the air inlet pipe, and the transmission shaft of the motor passes through the side wall of the shell and is fixedly connected to a wind wheel;

[0008] An impurity cleaning component is arranged inside the housing;

[0009] The impurity cleaning assembly includes a first connecting rod fixedly installed in the middle of the side wall of the wind wheel, a second connecting rod is provided at an end of the first connecting rod away from the wind wheel, and an end of the second connecting rod away from the first connecting rod is fixedly installed on the middle part of the side of the short rod, the inner wall of the intake pipe is fixedly sleeved with a first annular plate, a side of the first annular plate away from the short rod is provided with a second annular plate movably sleeved on the inner wall of the intake pipe, a side of the second annular plate close to the first annular plate contacts the arc surface of the short rod, a side of the second annular plate close to the first annular plate is fixedly installed with an arc-shaped protrusion, a side of the arc-shaped protrusion close to the short rod is an inclined surface, and the second annular plate and the arc-shaped protrusion have a smooth transition, a return spring is provided between the first annular plate and the second annular plate, two ends of the return spring are respectively fixedly installed on the side walls of the second annular plate and the first annular plate, and the filter is fixedly sleeved in the inner circle of the second annular plate.

[0010] Preferably, the arc-shaped protrusion is arranged on the inner ring of the side surface of the second annular plate, and the return spring is arranged on the outer ring of the side surface of the second annular plate, and the two ends of the short rod do not contact the return spring, and the diameter of the second annular plate is the same as the inner diameter of the intake pipe, wherein, when the short rod rotates, its arc surface will contact the side surfaces of the second annular plate and the arc-shaped protrusion, and when the arc surface of the short rod contacts the side surface of the second annular plate, the return spring is at a natural length, and when the arc surface of the short rod contacts the arc surface of the arc protrusion, the short rod will push the arc protrusion and the second annular plate to the side away from the short rod, and then the return spring will be stretched, and when the short rod rotates, its arc surface will alternately contact the arc surface of the second annular plate and the arc surface of the arc protrusion, and then the return spring will repeatedly stretch and contract, and when the return spring contracts, the elastic force of the return spring drives the second annular plate to hit the short rod, and then the filter screen on the second annular plate is vibrated, so that impurities attached to the filter screen can be shaken off.

[0011] Preferably, eight arc-shaped protrusions and return springs are provided in a circular array, and the eight arc-shaped protrusions and return springs are arranged in a one-to-one correspondence, wherein after the short rod rotates one circle, the second annular plate will reciprocate eight times inside the intake pipe, thereby causing the filter to shake eight times.

[0012] Preferably, a reducer is arranged between the first connecting rod and the second connecting rod, the input shaft of the reducer is fixedly connected to the first connecting rod, and the output shaft of the reducer is fixedly connected to the second connecting rod, wherein the reducer is prior art, when the motor drives the wind wheel to rotate, the first connecting rod will rotate synchronously with the wind wheel, and then the first connecting rod drives the second connecting rod to rotate, and the rotation speed of the second connecting rod can be changed by the reducer to reduce its rotation speed.

[0013] Preferably, one end of an L-shaped rod is fixedly mounted on the side of the reducer, and the other end of the L-shaped rod is fixedly mounted on the inner wall of the intake pipe, wherein the reducer can be supported by the L-shaped rod and then fixed inside the housing.

[0014] The utility model provides a safe and corrosion-resistant fan. It has the following beneficial effects:

[0015] 1. The safe and corrosion-resistant fan drives the first connecting rod to rotate through the motor, and the second connecting rod can be driven to rotate through the first connecting rod, and then the short rod is driven to rotate. When the short rod rotates, its arc surface will alternately contact with the arc surface of the second annular plate and the arc surface of the arc-shaped protrusion, and then the reset spring will repeatedly stretch and contract. When the reset spring contracts, the elastic force of the reset spring drives the second annular plate to hit the short rod, and then the filter screen on the second annular plate is vibrated, which can shake off the impurities attached to the filter screen, and then the impurities are discharged through the impurity discharge pipe, thereby avoiding the situation where impurities are attached to the filter screen and then hinder the air from passing through the filter screen, which is beneficial to improving the blowing effect of the fan, and solves the problem that the stainless steel anti-corrosion filter screen of the existing device is easy to adhere to impurities, and the impurities will hinder the external air from passing through the stainless steel anti-corrosion filter screen, resulting in a reduced blowing effect of the air;

[0016] 2. The safe and corrosion-resistant fan can support the reducer through the L-shaped rod, and then fix the reducer inside the shell. When the motor drives the wind wheel to rotate, the first connecting rod will rotate synchronously with the wind wheel, and then the first connecting rod drives the second connecting rod to rotate. The rotation speed of the second connecting rod can be changed by the reducer to reduce its rotation speed, thereby avoiding the second annular plate and the short rod from colliding too many times and the reset spring from being stretched too many times, which is beneficial to the service life of the impurity cleaning component. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the housing and the wind wheel of the utility model;

[0019] Figure 3 This is a schematic diagram of the reducer structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the second annular plate structure of the present utility model.

[0021] In the figure: 1. housing; 11. air outlet pipe; 12. air inlet pipe; 13. exhaust pipe; 14. filter; 2. motor; 21. wind wheel; 3. impurity cleaning assembly; 31. first connecting rod; 32. reducer; 33. second connecting rod; 34. short rod; 35. first annular plate; 36. second annular plate; 37. arc-shaped protrusion; 38. reset spring; 39. L-shaped rod. DETAILED DESCRIPTION

[0022] 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.

[0023] Embodiment 1:

[0024] like Figure 1-4As shown: it includes a shell 1, the top surface and side surface of the shell 1 are respectively provided with an outlet pipe 11 and an inlet pipe 12, the interior and bottom surface of the inlet pipe 12 are respectively provided with a filter screen 14 and an exhaust pipe 13, a motor 2 is fixedly installed on the side of the shell 1 away from the inlet pipe 12, the transmission shaft of the motor 2 passes through the side wall of the shell 1 and is fixedly connected to a wind wheel 21, an impurity cleaning component 3 is arranged inside the shell 1, and the impurity cleaning component 3 includes a first connecting rod 31 fixedly installed in the middle of the side wall of the wind wheel 21, a second connecting rod 33 is arranged at one end of the first connecting rod 31 away from the wind wheel 21, and the end of the second connecting rod 33 away from the first connecting rod 31 is fixedly installed on a short rod In the middle part of the side surface 34, the inner wall of the intake pipe 12 is fixedly sleeved with a first annular plate 35, and a second annular plate 36 that is movably sleeved on the inner wall of the intake pipe 12 is provided on the side of the first annular plate 35 away from the short rod 34. The side of the second annular plate 36 close to the first annular plate 35 contacts the arc surface of the short rod 34, and the side of the second annular plate 36 close to the first annular plate 35 is fixedly installed with an arc-shaped protrusion 37, and the side of the arc-shaped protrusion 37 close to the short rod 34 is an inclined surface, and the second annular plate 36 and the arc-shaped protrusion 37 have a smooth transition, and a return spring 38 is provided between the first annular plate 35 and the second annular plate 36, and the two ends of the return spring 38 are respectively fixed. The filter screen 14 is fixedly mounted on the side walls of the second annular plate 36 and the first annular plate 35, the filter screen 14 is fixedly sleeved in the inner ring of the second annular plate 36, the arc-shaped protrusion 37 is arranged on the inner ring of the side of the second annular plate 36, the return spring 38 is arranged on the outer ring of the side of the second annular plate 36, the two ends of the short rod 34 do not contact the return spring 38, the diameter of the second annular plate 36 is the same as the inner diameter of the intake pipe 12, the arc-shaped protrusion 37 and the return spring 38 are both provided with eight arc-shaped protrusions 37 and the return spring 38 are arranged in a one-to-one correspondence, the first connecting rod 31 is driven to rotate by the motor 2, and the first connecting rod 31 can be driven The second connecting rod 33 is driven to rotate, and then the short rod 34 is driven to rotate. When the short rod 34 rotates, its arc surface will alternately contact the arc surfaces of the second annular plate 36 and the arc-shaped protrusion 37, and then the return spring 38 will repeatedly stretch and contract. When the return spring 38 contracts, the elastic force of the return spring 38 drives the second annular plate 36 to hit the short rod 34, and then the filter 14 on the second annular plate 36 is vibrated, which can shake off the impurities attached to the filter 14, and then the impurities are discharged through the impurity discharge pipe 13, thereby avoiding the impurities from being attached to the filter 14 and then hindering the air from passing through the filter 14, which is conducive to improving the blowing effect of the fan;

[0025] Embodiment 2:

[0026] like Figure 2-3As shown: a reducer 32 is arranged between the first connecting rod 31 and the second connecting rod 33, the input shaft of the reducer 32 is fixedly connected to the first connecting rod 31, and the output shaft of the reducer 32 is fixedly connected to the second connecting rod 33. One end of an L-shaped rod 39 is fixedly installed on the side of the reducer 32, and the other end of the L-shaped rod 39 is fixedly installed on the inner wall of the intake pipe 12. The reducer 32 can be supported by the L-shaped rod 39, and then the reducer 32 is fixed inside the shell 1. When the motor 2 drives the wind wheel 21 to rotate, the first connecting rod 31 will rotate synchronously with the wind wheel 21, and then the first connecting rod 31 drives the second connecting rod 33 to rotate. The rotation speed of the second connecting rod 33 can be changed by the reducer 32 to reduce its rotation speed, thereby avoiding the second annular plate 36 and the short rod 34 from colliding too many times and the reset spring 38 from being stretched too many times, which is beneficial to the service life of the impurity cleaning component 3.

[0027] The working principle and use process of the utility model: when the safe and corrosion-resistant fan is used, the motor 2 is started to drive the wind wheel 21 to rotate, and the outside air enters the interior of the shell 1 through the air inlet pipe 12 and is finally discharged through the air outlet pipe 11. The impurities in the outside air are filtered through the filter 14. When the wind wheel 21 rotates, the first connecting rod 31 can be driven to rotate synchronously, and the second connecting rod 33 can be driven to rotate through the first connecting rod 31. The rotation speed of the second connecting rod 33 can be reduced by the reducer 32. When the second connecting rod 33 rotates, the short rod 34 will rotate synchronously with it. When the short rod 34 rotates, its arc surface will contact the side surfaces of the second annular plate 36 and the arc-shaped protrusion 37. When the arc surface of the short rod 34 contacts the second annular plate 36 and the arc-shaped protrusion 37, When the side of the plate 36 contacts, the return spring 38 is at a natural length. When the arc surface of the short rod 34 contacts the arc surface of the arc protrusion 37, the short rod 34 will push the arc protrusion 37 and the second annular plate 36 to the side away from the short rod 34, and then the return spring 38 will be stretched. When the short rod 34 rotates, its arc surface will alternately contact the arc surfaces of the second annular plate 36 and the arc protrusion 37, and then the return spring 38 will repeatedly stretch and contract. When the return spring 38 contracts, the elastic force of the return spring 38 drives the second annular plate 36 to hit the short rod 34, and then the filter screen 14 on the second annular plate 36 is vibrated, which can shake off the impurities attached to the filter screen 14, and then the impurities are discharged through the impurity discharge pipe 13.

[0028] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A safe and corrosion-resistant fan, comprising a housing (1), wherein an air outlet pipe (11) and an air inlet pipe (12) are respectively arranged on the top surface and the side surface of the housing (1), a filter screen (14) and an impurity discharge pipe (13) are respectively arranged inside and on the bottom surface of the air inlet pipe (12), a motor (2) is fixedly mounted on a side of the housing (1) away from the air inlet pipe (12), and a transmission shaft of the motor (2) penetrates through the side wall of the housing (1) and is fixedly connected to a wind wheel (21); Features: An impurity cleaning component (3) is arranged inside the housing (1); The impurity cleaning assembly (3) comprises a first connecting rod (31) fixedly mounted in the middle of the side wall of the wind wheel (21); a second connecting rod (33) is arranged at one end of the first connecting rod (31) away from the wind wheel (21); an end of the second connecting rod (33) away from the first connecting rod (31) is fixedly mounted on the middle of the side of the short rod (34); a first annular plate (35) is fixedly sleeved on the inner wall of the air intake pipe (12); a second annular plate (36) movably sleeved on the inner wall of the air intake pipe (12) is arranged on one side of the first annular plate (35) away from the short rod (34); the second annular plate (36) is close to the first annular plate (35). 5), one side of the second annular plate (36) contacts the arc surface of the short rod (34), an arc-shaped protrusion (37) is fixedly installed on the side of the second annular plate (36) close to the first annular plate (35), the side of the arc-shaped protrusion (37) close to the short rod (34) is an inclined surface, and a smooth transition is formed between the second annular plate (36) and the arc-shaped protrusion (37), a return spring (38) is arranged between the first annular plate (35) and the second annular plate (36), and the two ends of the return spring (38) are respectively fixedly installed on the side walls of the second annular plate (36) and the first annular plate (35), and the filter screen (14) is fixedly sleeved in the inner ring of the second annular plate (36).

2. A safe and corrosion-resistant fan according to claim 1, characterized in that: The arc-shaped protrusion (37) is arranged on the inner ring of the side of the second annular plate (36), the return spring (38) is arranged on the outer ring of the side of the second annular plate (36), the two ends of the short rod (34) do not contact the return spring (38), and the diameter of the second annular plate (36) is the same as the inner diameter of the intake pipe (12).

3. The safe and corrosion-resistant fan according to claim 1 is characterized in that: The arc-shaped protrusions (37) and the return springs (38) are each provided with eight arc-shaped protrusions (37) and eight return springs (38) distributed in a ring array, and the eight arc-shaped protrusions (37) and the return springs (38) are provided in a one-to-one correspondence.

4. The safe and corrosion-resistant fan according to claim 1 is characterized in that: A reducer (32) is provided between the first connecting rod (31) and the second connecting rod (33); an input shaft of the reducer (32) is fixedly connected to the first connecting rod (31); and an output shaft of the reducer (32) is fixedly connected to the second connecting rod (33).

5. A safe and corrosion-resistant fan according to claim 4, characterized in that: One end of an L-shaped rod (39) is fixedly mounted on the side of the reducer (32), and the other end of the L-shaped rod (39) is fixedly mounted on the inner wall of the intake pipe (12).

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