Disassembly-free self-cleaning wall-mounted fresh air machine

Abstract

A disassembly-free self-cleaning wall-mounted fresh air machine relates to the technical field of air conditioning and comprises a box shell, an air inlet barrel communicated with an inner cavity of the box shell is horizontally and fixedly connected to the back face of the box shell, spiral cleaning blades in friction contact with the inner wall of the air inlet barrel are rotatably arranged on the inner wall of the air inlet barrel, an end cover is buckled at the inlet end of the air inlet barrel, and air inlet holes are evenly distributed in the end cover. A detachable filter screen is vertically arranged in the box shell, and cleaning plates in frictional contact are slidably arranged on the front face and the back face of the filter screen correspondingly. The utility model solves the problems that in the prior art, when an air inlet pipeline of a fresh air machine is used, a large number of impurities are easily adhered to the inner wall, mildew is easily generated after a long time, the introduced fresh air has peculiar smell, and the cleanliness of indoor air is influenced; and the problem that in the air inlet and air exchange process of an existing fresh air machine, as a filter screen in the fresh air machine is used, granularity is prone to blocking the front face and the back face of the filter screen, and the ventilation efficiency in the air inlet and air exchange process is affected is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to a disassembly-free self-cleaning wall-mounted fresh air fan. Background Art

[0002] The fresh air fan is an effective air purification device that can circulate indoor air. On the one hand, it discharges the polluted air indoors to the outside, and on the other hand, it inputs the fresh air outdoors into the room after sterilization, disinfection, filtration and other measures, so that the room is filled with fresh and clean air at all times.

[0003] With the improvement of people's living standards, the functions of wall-mounted fresh air fans and the characteristics of not needing to lay pipes in advance have gradually been recognized by people. Many families will install wall-mounted fresh air fans in rooms after decoration. In order to ensure good sealing, the traditional fresh air system places the filter element inside the machine by screwing or opening and closing the door structure. When the filter element is used for a long time, dust will accumulate on the surface of the filter element, which will increase the wind resistance of the filter device exponentially, greatly reducing the ventilation effect. The filter element needs to be cleaned regularly, which is time-consuming and labor-intensive.

[0004] A patent with publication number CN110793098A is disclosed in the prior art. The solution includes a shell, with a dirty air inlet and a fresh air outlet respectively provided at both ends of the shell; a filter element, a dual-axis centrifugal fan and a full heat exchange element are provided inside the shell; a rotating motor is provided at one end of the filter element, and a fixing rod is provided at an end of the rotating motor opposite to the filter element, and the fixing rod passes through one end of the filter element and enters the interior of the filter element; a cleaning mechanism is symmetrically provided on the fixing rod, and the cleaning mechanism includes a fixing column, a splint and a cleaning brush. The provided wall-mounted fresh air fan which is easy to clean has the advantages of easy operation, flexible use, and easy cleaning of dust in the filter element.

[0005] As the existing devices including the above patents are used, the shortcomings of the technology are gradually exposed, which are mainly manifested in the following aspects:

[0006] First, as the existing fresh air fan's air inlet duct is used, a large amount of impurities tend to adhere to the inner wall, which is prone to mildew over time, causing the introduced fresh air to have odor and affecting the cleanliness of the indoor air.

[0007] Second, during the air intake and ventilation process of the existing fresh air fans, the filter inside the fresh air fans is used and the particles are easily blocked on the front and back sides of the filter, which affects the ventilation efficiency during the air intake and ventilation process.

[0008] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0009] In view of the defects in the prior art, the utility model solves the problems that the air inlet duct of the fresh air fan in the traditional technology is prone to adhesion of a large amount of impurities on the inner wall during use, which is prone to mildew over time, resulting in odor in the introduced fresh air and affecting the cleanliness of the indoor air; and the problem that during the air intake and ventilation process of the existing fresh air fan, the filter inside the fresh air fan is prone to clogging on the front and back sides of the filter with particles during use, which affects the ventilation efficiency during the air intake and ventilation process.

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

[0011] The invention discloses a self-cleaning wall-mounted fresh air fan which does not require disassembly, and comprises a box shell, the back of which is horizontally fixed with an air inlet tube connected to its inner cavity, the inner wall of which is rotatably provided with spiral cleaning blades which are in frictional contact with the inner wall, the inlet end of which is buckled with an end cover, and the end cover is evenly provided with air inlet holes, a detachable filter is vertically provided in the box shell, and cleaning plates which are in frictional contact are slidably provided on the front and back surfaces of the filter.

[0012] As an optimized solution, two cross bars are fixedly connected in parallel in the air inlet cylinder, the inner end of the spiral cleaning blade is fixedly connected to a support sleeve via a connecting rod, a horizontal axis is horizontally fixedly connected to the cross bar, and the support sleeve is rotatably sleeved on the horizontal axis.

[0013] As an optimized solution, the outer end of the spiral cleaning blade is fixedly connected to a cross column through a connecting rod, the cross column is rotatably mounted on another cross bar, and one end of the cross column passes through the end cover and is threadedly connected to a knob.

[0014] As an optimized solution, an air inlet hole connected to the air inlet tube is opened on the back side of the box shell, and a conical air guide cover is fixedly connected to the air inlet hole through a rod body.

[0015] As an optimized solution, a screw rod located on both sides of the filter screen is vertically rotatable corresponding to each cleaning plate in the box shell, and the cleaning plate is threadedly connected to the screw rod.

[0016] As an optimized solution, a driving machine for driving the screw to rotate is fixedly connected to the top of the box shell.

[0017] As an optimized solution, a drive sleeve is threadedly connected to the screw rod, and the cleaning plate is fixed to the outer wall of the drive sleeve.

[0018] As an optimized solution, a slag discharge hole is opened at the bottom of the filter screen in the box shell, and a slag discharge box covering the slag discharge hole is detachably mounted on the lower surface of the box shell.

[0019] As an optimized solution, the filter is fixed in a rectangular frame, the top of the rectangular frame is abutted against the inner top surface of the box shell, the upper end of the slag discharge box is open, a partition is fixed in the slag discharge box, the upper end of the partition is fixed with a support seat, and the bottom of the rectangular frame is abutted against the support seat.

[0020] As an optimized solution, the upper and lower ends of the rectangular frame are respectively fixed with positioning strips, and the box shell and the support seat are respectively provided with positioning grooves matching the positioning strips.

[0021] As an optimized solution, an axial flow fan is fixedly connected inside the box shell.

[0022] As an optimized solution, ventilation holes are evenly distributed on the front side of the box shell.

[0023] As an optimized solution, outer edges of the upper ports of the slag discharge box are respectively fixed with enclosure plates, and the enclosure plates are fixed to the lower surface of the box shell by bolts.

[0024] Compared with the prior art, the beneficial effects of the utility model are:

[0025] When a large amount of impurities adhere to the inner wall of the air inlet cylinder during use, for maintenance, unscrew the knob, remove the end cover, and then screw the knob onto the horizontal column. By driving the horizontal column to rotate, the spiral cleaning blades are driven to rotate to scrape off the impurities on the inner surface of the air inlet cylinder, and the impurities are scraped out from the outer port of the air inlet cylinder by the spiral action, so as to facilitate the cleaning of the impurities accumulated in the air inlet cylinder and prevent the phenomenon of mildew caused by the accumulation of impurities affecting the indoor air.

[0026] Since the fresh air fan supplies air and exchanges air when in use, impurities will accumulate on both sides of the filter. When the filter needs to be cleaned, the drive motor drives the screw to rotate, and then drives the cleaning plate to scrape off the particles adhered to the front and back sides of the filter, thereby improving the ventilation performance. The scraped impurities fall into the slag box through the slag discharge hole. When the slag box is full of impurities and needs to be cleaned, the bolts can be loosened to remove the slag box for cleaning. At this point, the filter can be removed and the filter can be deeply cleaned together, thereby improving the ventilation of the fresh air fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0028] Figure 1 It is a structural schematic diagram of the utility model.

[0029] In the figure: 1-box shell; 2-air inlet cylinder; 3-spiral cleaning blade; 4-connecting rod; 5-cross bar; 6-support sleeve; 7-cross axis; 8-cross column; 9-knob; 10-end cover; 11-air inlet; 12-air inlet; 13-conical guide cover; 14-filter screen; 15-screw; 16-cleaning plate; 17-drive sleeve; 18-drive machine; 19-axial flow fan; 20-ventilation hole; 21-rectangular frame; 22-positioning strip; 23-slag discharge box; 24-partition; 25-support seat; 26-slag discharge hole; 27-enclosure. DETAILED DESCRIPTION

[0030] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0031] like Figure 1 As shown, the non-disassembly type self-cleaning wall-mounted fresh air fan comprises a box shell 1, on the back of which is horizontally fixedly connected an air inlet tube 2 connected to its inner cavity, on the inner wall of the air inlet tube 2 is rotatably provided a spiral cleaning blade 3 which is in frictional contact with the inner wall, at the inlet end of the air inlet tube 2 is buckled an end cover 10, on which are evenly distributed air inlet holes 11, a detachable filter screen 14 is vertically provided in the box shell 1, on the front and back surfaces of the filter screen 14 are respectively slidably provided cleaning plates 16 which are in frictional contact.

[0032] Two cross bars 5 are fixedly connected in parallel in the air inlet cylinder 2. The inner end of the spiral cleaning blade 3 is fixedly connected to a support sleeve 6 through a connecting rod 4. A horizontal shaft 7 is horizontally fixedly connected to the cross bar 5. The support sleeve 6 is rotatably sleeved on the horizontal shaft 7.

[0033] The outer end of the spiral cleaning blade 3 is fixedly connected to a cross column 8 through a connecting rod 4. The cross column 8 is rotatably mounted on another cross bar 5. One end of the cross column 8 passes through an end cover 10 and is threadedly connected to a knob 9.

[0034] An air inlet hole 12 connected to the air inlet tube 2 is formed on the back of the box shell 1, and a conical air guide cover 13 is fixedly connected to the air inlet hole 12 through a rod body.

[0035] Screw rods 15 are respectively arranged in the box shell 1 for vertical rotation corresponding to each cleaning plate 16 and located on both sides of the filter screen 14 , and the cleaning plate 16 is threadedly connected to the screw rods 15 .

[0036] The top of the box shell 1 is fixedly connected with a driving machine 18 for driving the screw rod 15 to rotate.

[0037] A driving sleeve 17 is threadedly connected to the screw rod 15 , and a cleaning plate 16 is fixed to the outer wall of the driving sleeve 17 .

[0038] A slag discharge hole 26 is provided at the bottom of the box shell 1 at the filter screen 14 , and a slag discharge box 23 covering the slag discharge hole 26 is detachably mounted on the lower surface of the box shell 1 .

[0039] The filter screen 14 is fixed in the rectangular frame 21, the top of the rectangular frame 21 is against the inner top surface of the box shell 1, the upper end of the slag discharge box 23 is opened, a partition 24 is fixed in the slag discharge box 23, the upper end of the partition 24 is fixed to a support seat 25, and the bottom of the rectangular frame 21 is against the support seat 25.

[0040] Positioning strips 22 are fixedly connected to the upper and lower ends of the rectangular frame 21 , respectively. Positioning grooves matching the positioning strips 22 are respectively formed on the box shell 1 and the support seat 25 .

[0041] An axial flow fan 19 is fixedly connected in the box shell 1.

[0042] Ventilation holes 20 are evenly distributed on the front side of the box shell 1 .

[0043] The outer edges of the upper ports of the slag discharge box 23 are respectively fixed with enclosure plates 27 , and the enclosure plates 27 are fixed to the lower surface of the box shell 1 by bolts.

[0044] There are other components in the fresh air fan that are common in daily life and are not the innovation of this patent, so they will not be elaborated here. The innovation of this patent lies in the cleaning of impurities.

[0045] The working principle of this device is:

[0046] When a large amount of impurities adhere to the inner wall of the air inlet cylinder 2 during use and maintenance is required, the knob 9 is unscrewed, the end cover 10 is removed, and then the knob 9 is screwed onto the cross column 8, and the cross column 8 is driven to rotate, so as to drive the spiral cleaning blade 3 to rotate to scrape off the impurities on the inner surface of the air inlet cylinder 2, and the impurities are scraped out from the outer port of the air inlet cylinder 2 by the spiral action, so as to facilitate the cleaning of the impurities accumulated in the air inlet cylinder 2 and prevent the phenomenon of mildew caused by the accumulation of impurities affecting the indoor air;

[0047] Since the fresh air fan delivers air and exchanges air when in use, impurities will accumulate on both sides of the filter 14. When the filter 14 needs to be cleaned, the drive motor 18 drives the screw 15 to rotate, and then drives the cleaning plate 16 to scrape off the particles adhered to the front and back sides of the filter 14, thereby improving the ventilation performance. The scraped impurities fall into the slag box 23 through the slag discharge hole 26. When the slag box 23 is full of impurities and needs to be cleaned, the bolts can be loosened to remove the slag box 23 for cleaning. At this point, the filter 14 can be removed, and the filter 14 can be deeply cleaned together, thereby improving the ventilation of the fresh air fan.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. The non-disassembly self-cleaning wall-mounted fresh air fan is characterized by: The invention comprises a box shell (1), the back side of the box shell (1) is horizontally fixedly connected with an air inlet cylinder (2) communicating with its inner cavity, the inner wall of the air inlet cylinder (2) is rotatably provided with spiral cleaning blades (3) in frictional contact with the inner wall, the inlet end of the air inlet cylinder (2) is buckled with an end cover (10), the end cover (10) is evenly distributed with air inlet holes (11), a detachable filter screen (14) is vertically provided in the box shell (1), and cleaning plates (16) in frictional contact are slidably provided on the front and back surfaces of the filter screen (14).

2. The disassembly-free self-cleaning wall-mounted fresh air blower according to claim 1 is characterized in that: Two cross bars (5) are fixedly connected in parallel in the air inlet cylinder (2); the inner end of the spiral cleaning blade (3) is fixedly connected to a support sleeve (6) via a connecting rod (4); a horizontal shaft (7) is fixedly connected to the cross bar (5) in a horizontal manner; and the support sleeve (6) is rotatably sleeved on the horizontal shaft (7).

3. The disassembly-free self-cleaning wall-mounted fresh air blower according to claim 2 is characterized in that: The outer end of the spiral cleaning blade (3) is fixedly connected to a cross column (8) via a connecting rod (4). The cross column (8) is rotatably mounted on another cross bar (5). One end of the cross column (8) passes through the end cover (10) and is threadedly connected to a knob (9).

4. The disassembly-free self-cleaning wall-mounted fresh air blower according to claim 3 is characterized in that: An air inlet hole (12) connected to the air inlet tube (2) is provided on the back of the box shell (1), and a conical air guide cover (13) is fixedly connected to the air inlet hole (12) via a rod body.

5. The disassembly-free self-cleaning wall-mounted fresh air blower according to claim 4 is characterized in that: The box shell (1) is provided with screw rods (15) on both sides of the filter screen (14) corresponding to each cleaning plate (16) for vertical rotation. The cleaning plate (16) is threadedly connected to the screw rods (15). The top of the box shell (1) is fixedly connected with a driving machine (18) for driving the screw rods (15) to rotate.

6. The disassembly-free self-cleaning wall-mounted fresh air blower according to claim 5 is characterized in that: The screw rod (15) is threadedly connected with a driving sleeve (17), and the cleaning plate (16) is fixedly connected to the outer wall of the driving sleeve (17).

7. The disassembly-free self-cleaning wall-mounted fresh air blower according to claim 6 is characterized in that: The box shell (1) is provided with a slag discharge hole (26) at the bottom of the filter screen (14), and a slag discharge box (23) covering the slag discharge hole (26) is detachably mounted on the lower surface of the box shell (1).

8. The disassembly-free self-cleaning wall-mounted fresh air blower according to claim 7 is characterized in that: The filter screen (14) is fixedly connected in a rectangular frame (21), the top of the rectangular frame (21) is in contact with the inner top surface of the box shell (1), the upper end of the slag discharge box (23) is open, a partition (24) is fixedly connected in the slag discharge box (23), the upper end of the partition (24) is fixedly connected to a support seat (25), and the bottom of the rectangular frame (21) is in contact with the support seat (25).

9. The disassembly-free self-cleaning wall-mounted fresh air blower according to claim 8 is characterized in that: Positioning strips (22) are fixedly connected to the upper and lower ends of the rectangular frame (21), and positioning grooves matching the positioning strips (22) are respectively provided on the box shell (1) and the support seat (25).

10. The disassembly-free self-cleaning wall-mounted fresh air blower according to claim 9 is characterized in that: The outer edges of the upper ports of the slag discharge box (23) are respectively fixed with enclosure plates (27), and the enclosure plates (27) are fixed to the lower surface of the box shell (1) by bolts.

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