Filter screen mechanism for fresh air system

Abstract

The utility model discloses a filter screen mechanism for a fresh air system, and relates to the technical field of filter screen mechanisms, the filter screen mechanism comprises an air inlet pipe, the opposite inner walls of the air inlet pipe 1 are provided with rotating holes, a mounting shaft is rotatably mounted in the two rotating holes together, and the mounting shaft is fixedly sleeved with a filter plate matched with the air inlet pipe. In use, when the filter plate needs to be cleaned, the collecting assembly is firstly pushed into the air inlet pipe, then limiting of the limiting assembly on the mounting shaft is relieved, the mounting shaft is turned over by 180 degrees, when the mounting shaft rotates, the filter plate is driven to turn over synchronously, and at the moment, part of foreign matter can fall into the collecting assembly; and then a rectangular sliding plate and a cleaning brush are driven by a reciprocating motion assembly to do reciprocating horizontal motion to clean the bottom of the filter plate, so that all residual foreign matters fall into a collecting assembly, and therefore, the filter plate can be effectively cleaned, disassembly is not needed, the cleaning efficiency is high, the effect is good, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of filter mechanisms, in particular to a filter mechanism for a fresh air system. Background Art

[0002] The fresh air system needs to filter out impurities through filters, but the filter mechanism of the fresh air system still has the following problems in use:

[0003] After long-term use, a large amount of impurities will accumulate on the filter screen of the current fresh air system. It needs to be disassembled and cleaned, which is cumbersome and inconvenient to use. To solve the above problems, a filter screen mechanism for a fresh air system is proposed. Summary of the invention

[0004] The purpose of the present application is to provide a filter mechanism for a fresh air system, so as to solve the problem in the above-mentioned background technology that after long-term use, a large amount of impurities will accumulate on the filter mechanism of the current fresh air system, and the filter mechanism needs to be disassembled and cleaned, and the overall operation is cumbersome and inconvenient to use.

[0005] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a filter mechanism for a fresh air system, comprising an air inlet pipe, wherein the relative inner walls of the air inlet pipe are provided with rotating holes, and mounting shafts are installed in the two rotating holes to rotate together, and a filter plate compatible with the air inlet pipe is fixedly sleeved on the mounting shaft, and a limiting component is arranged on the mounting shaft, and a U-shaped groove is provided on the inner wall of the peripheral side of the air inlet pipe, and a rectangular slide is slidably installed in the U-shaped groove through a reciprocating motion component, and a cleaning brush is arranged on the top of the rectangular slide, and the cleaning brush is compatible with the filter plate, and a supporting frame is fixedly installed on the outer wall of the peripheral side of the air inlet pipe, and a collecting component compatible with the cleaning brush is arranged on the top of the supporting frame.

[0006] Preferably, one end of the mounting shaft extends to the outside of the air inlet pipe and is fixedly mounted with a knob.

[0007] Preferably, the limit assembly includes a limit gear and a limit rack, a rectangular cavity is provided in the air inlet duct, and the relative inner walls of the rectangular cavity are commonly provided with a partition, a circular hole is opened on the side of the partition, a sliding shaft is slidably installed in the circular hole, the side of the limit rack is fixedly connected to one end of the sliding shaft, an operating hole is opened on the side inner wall of the rectangular cavity, an operating plate is slidably installed in the operating hole, the side of the operating plate is fixedly connected to the other end of the sliding shaft, the limit gear is fixedly sleeved on the installation shaft, the limit gear is meshed and installed with the limit rack, and a compression unit is provided on the side of the limit rack.

[0008] Preferably, the compression unit comprises a compression spring, one end of the compression spring is fixedly mounted on a side of the limiting rack, and the other end of the compression spring is fixedly mounted on a side of the partition.

[0009] Preferably, the reciprocating motion assembly includes two reciprocating screw rods, both ends of which are rotatably mounted on the relative inner walls of the U-shaped groove, the two reciprocating screw rods are connected by a linkage unit, and the rectangular slide plate is threadedly mounted on the two reciprocating screw rods.

[0010] Preferably, the linkage unit includes two sprockets, which are respectively fixedly sleeved on the two reciprocating screw rods, and chains are commonly meshed and installed on the two sprockets. A drive motor is fixedly installed on the side of the air inlet pipe, and the output shaft of the drive motor is connected to the end of one of the reciprocating screw rods.

[0011] Preferably, the collecting assembly includes a collecting drawer, a collecting hole is provided on the side of the air inlet pipe, a limiting groove is provided between the collecting hole and the relative inner wall of the air inlet pipe, limiting sliders are slidably installed in the two limiting grooves, the two sides of the collecting drawer are respectively fixedly connected to the relative sides of the two limiting sliders, a pull ring is provided on the side of the collecting drawer, and the collecting drawer is slidably arranged on the top of the supporting frame.

[0012] In summary, the technical effects and advantages of the utility model are:

[0013] In the utility model, when it is needed to clean the filter plate during use, the collecting assembly is first pushed into the air inlet duct, and then the limit of the installation shaft by the limit assembly is released, and the installation shaft is flipped 180 degrees. When the installation shaft rotates, the filter plate is driven to flip synchronously. At this time, some foreign matter will fall into the collecting assembly, and then the reciprocating motion assembly drives the rectangular slide and the cleaning brush to reciprocate horizontally to clean the bottom of the filter plate, so that all the remaining foreign matter falls into the collecting assembly. This arrangement can effectively clean the filter plate without disassembly, with high cleaning efficiency, good effect and strong practicality.

[0014] In the utility model, when it is necessary to rotate the installation shaft, first pull the operating plate, thereby driving the sliding shaft and the limit rack to move horizontally synchronously, releasing the engagement of the limit rack and the limit gear, thereby releasing the limiting function of the installation shaft, making it easier to rotate the installation shaft. When it is reset, the engagement of the limit rack and the limit gear can effectively prevent the installation shaft from rotating, and the elastic effect of the compression spring improves the stability of the engagement of the limit rack and the limit gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application 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 present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 A schematic diagram of the three-dimensional structure of a filter mechanism for a fresh air system in an embodiment of the present application;

[0017] Figure 2 This is a schematic diagram of the partial cross-section structure of the air inlet pipe and the knob in the embodiment of the present application;

[0018] Figure 3 This is an enlarged structural diagram of the limit gear and the limit rack in the embodiment of the present application;

[0019] Figure 4 This is a schematic diagram of the partial cross-section structure of the air inlet pipe and the filter plate in the embodiment of the present application;

[0020] Figure 5 for Figure 4 Enlarged structural diagram at A in the middle.

[0021] In the figure: 1. air inlet duct; 2. mounting shaft; 3. filter plate; 4. knob; 5. limit gear; 6. limit rack; 7. partition; 8. sliding shaft; 9. compression spring; 10. operating panel; 11. reciprocating screw rod; 12. sprocket; 13. chain; 14. driving motor; 15. rectangular slide plate; 16. cleaning brush; 17. carrying frame; 18. collection drawer; 19. limit slider. 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] Example: Reference Figure 1-5A filter mechanism for a fresh air system shown in the figure comprises an air inlet pipe 1, the opposite inner walls of the air inlet pipe 1 are provided with rotating holes, a mounting shaft 2 is installed in the two rotating holes for common rotation, a filter plate 3 matched with the air inlet pipe 1 is fixedly sleeved on the mounting shaft 2, a limiting component is arranged on the mounting shaft 2, a U-shaped groove is provided on the inner wall of the peripheral side of the air inlet pipe 1, a rectangular slide plate 15 is slidably installed in the U-shaped groove through a reciprocating motion component, a cleaning brush 16 is arranged on the top of the rectangular slide plate 15, the cleaning brush 16 is matched with the filter plate 3, a supporting frame 17 is fixedly installed on the outer wall of the peripheral side of the air inlet pipe 1, and a collecting component matched with the cleaning brush 16 is arranged on the top of the supporting frame 17.

[0024] By means of the above structure, during use, when the filter plate 3 needs to be cleaned, first push the collecting assembly into the air inlet pipe 1, then release the limit of the limiting assembly on the mounting shaft 2, and flip the mounting shaft 2 180 degrees. When the mounting shaft 2 rotates, it drives the filter plate 3 to flip synchronously. At this time, some foreign matter will fall into the collecting assembly, and then the reciprocating motion assembly drives the rectangular slide 15 and the cleaning brush 16 to reciprocate horizontally to clean the bottom of the filter plate 3, so that all the remaining foreign matter falls into the collecting assembly. This arrangement can effectively clean the filter plate 3 without disassembly, with high cleaning efficiency, good effect and strong practicality.

[0025] like Figure 3 As shown, one end of the installation shaft 2 extends to the outside of the air inlet pipe 1 and is fixedly mounted with a knob 4. The advantage of such an arrangement is that, through the arrangement of the knob 4, a convenient operation function of the installation shaft 2 can be achieved.

[0026] Specifically, when the installation shaft 2 needs to be rotated, the knob 4 can be rotated to drive the installation shaft 2 to rotate synchronously, thereby achieving convenient operation.

[0027] like Figure 3 As shown, the limit assembly includes a limit gear 5 and a limit rack 6. A rectangular cavity is provided in the air inlet pipe 1. The relative inner walls of the rectangular cavity are jointly provided with a partition 7. A circular hole is opened on the side of the partition 7. A sliding shaft 8 is slidably installed in the circular hole. The side of the limit rack 6 is fixedly connected to one end of the sliding shaft 8. An operating hole is opened on the side inner wall of the rectangular cavity. An operating plate 10 is slidably installed in the operating hole. The side of the operating plate 10 is fixedly connected to the other end of the sliding shaft 8. The limit gear 5 is fixedly sleeved on the mounting shaft 2. The limit gear 5 is meshed and installed with the limit rack 6. A compression unit is provided on the side of the limit rack 6. The advantage of such a configuration is that, through the configuration of the limit gear 5 and the limit rack 6, the meshing action of the limit rack 6 and the limit gear 5 can be achieved to limit the mounting shaft 2 to prevent it from rotating.

[0028] Specifically, when it is necessary to rotate the mounting shaft 2, first pull the operating panel 10, thereby driving the sliding shaft 8 and the limit rack 6 to move horizontally synchronously, releasing the engagement between the limit rack 6 and the limit gear 5, thereby releasing the limiting function of the mounting shaft 2, making it easier to rotate the mounting shaft 2. When it is reset, the engagement between the limit rack 6 and the limit gear 5 can effectively prevent the mounting shaft 2 from rotating.

[0029] like Figure 3 As shown, the compression unit includes a compression spring 9, one end of the compression spring 9 is fixedly installed on the side of the limit rack 6, and the other end of the compression spring 9 is fixedly installed on the side of the partition 7. The advantage of this arrangement is that, through the arrangement of the compression spring 9, when the limit on the operating panel 10 is released, the limit rack 6 can be reset under the elastic action of the compression spring 9.

[0030] Specifically, when the limit on the operating panel 10 is released, the elastic action thereof can drive the operating panel 10, the sliding shaft 8 and the limit rack 6 to realize the reset function, thereby improving the stability of the limit rack 6 when meshing with the limit gear 5.

[0031] like Figure 5 As shown, the reciprocating motion assembly includes two reciprocating screw rods 11, both ends of the two reciprocating screw rods 11 are rotatably installed on the relative inner walls of the U-shaped groove, the two reciprocating screw rods 11 are connected by a linkage unit, and the rectangular slide plate 15 is threadedly installed on the two reciprocating screw rods 11. The advantage of this arrangement is that through the arrangement of the two reciprocating screw rods 11, the horizontal reciprocating sliding function of the rectangular slide plate 15 can be realized.

[0032] Specifically, when the two reciprocating screw rods 11 rotate, they drive the rectangular slide plate 15 to reciprocate horizontally, and then drive the cleaning brush 16 to clean the bottom of the filter plate 3, and the cleaning effect is better.

[0033] like Figure 5 As shown, the linkage unit includes two sprockets 12, which are respectively fixedly sleeved on two reciprocating screw rods 11, and a chain 13 is installed on the two sprockets 12 in meshing relationship with each other. A driving motor 14 is fixedly installed on the side of the air inlet pipe 1, and the output shaft of the driving motor 14 is connected to the end of one of the reciprocating screw rods 11. The advantage of such an arrangement is that, through the arrangement of the two sprockets 12 and the chain 13, the two reciprocating screw rods 11 can be driven to rotate synchronously, thereby preventing the rectangular slide 15 from getting stuck during horizontal movement.

[0034] Specifically, when the drive motor 14 is started, the drive motor 14 drives one of the reciprocating screws 11 and the sprocket 12 to rotate, and then drives the other sprocket 12 and the reciprocating screw 11 to rotate synchronously under the meshing action of the sprocket 12 and the chain 13, thereby avoiding the rectangular slide 15 from getting stuck during movement.

[0035] like Figure 1 As shown, the collecting component includes a collecting drawer 18, a collecting hole is provided on the side of the air inlet pipe 1, and a limiting groove is provided together with the collecting hole and the relative inner wall of the air inlet pipe 1, and limiting sliders 19 are slidably installed in the two limiting grooves. The two side portions of the collecting drawer 18 are fixedly connected to the relative side portions of the two limiting sliders 19 respectively, and a pull ring is provided on the side of the collecting drawer 18. The collecting drawer 18 is slidably set on the top of the supporting frame 17. The advantage of such a setting is that through the setting of the collecting drawer 18, the impurities brushed off the filter plate 3 can be collected to prevent them from falling into the air inlet pipe 1.

[0036] Specifically, the collecting drawer 18 is pushed into the air inlet pipe 1 , and when the cleaning brush 16 cleans the filter plate 3 , impurities will fall into the collecting drawer 18 , thereby preventing the impurities from falling into the air inlet pipe 1 and polluting the air.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A filter mechanism for a fresh air system, comprising an air inlet pipe (1), characterized in that: The opposite inner walls of the air inlet pipe (1) are provided with rotating holes, and mounting shafts (2) are rotatably mounted in the two rotating holes. A filter plate (3) matching the air inlet pipe (1) is fixedly sleeved on the mounting shaft (2), and a limit position component is arranged on the mounting shaft (2). A U-shaped groove is provided on the inner wall of the circumference of the air inlet pipe (1), and a rectangular slide plate (15) is slidably mounted in the U-shaped groove via a reciprocating motion component. A cleaning brush (16) is arranged on the top of the rectangular slide plate (15), and the cleaning brush (16) is matched with the filter plate (3). A bearing frame (17) is fixedly mounted on the outer wall of the circumference of the air inlet pipe (1), and a collecting component matching the cleaning brush (16) is arranged on the top of the bearing frame (17).

2. The filter mechanism for a fresh air system according to claim 1, characterized in that: One end of the installation shaft (2) extends to the outside of the air inlet pipe (1) and is fixedly mounted with a knob (4).

3. The filter mechanism for a fresh air system according to claim 1, characterized in that: The limit assembly comprises a limit gear (5) and a limit rack (6); a rectangular cavity is provided in the air inlet pipe (1); a partition (7) is provided on the opposite inner walls of the rectangular cavity; a circular hole is provided on the side of the partition (7); a sliding shaft (8) is slidably installed in the circular hole; a side of the limit rack (6) is fixedly connected to one end of the sliding shaft (8); an operating hole is provided on the inner wall of the side of the rectangular cavity; an operating plate (10) is slidably installed in the operating hole; a side of the operating plate (10) is fixedly connected to the other end of the sliding shaft (8); the limit gear (5) is fixedly sleeved on the mounting shaft (2); the limit gear (5) is meshed and installed with the limit rack (6); and a compression unit is provided on the side of the limit rack (6).

4. The filter mechanism for a fresh air system according to claim 3, characterized in that: The compression unit comprises a compression spring (9), one end of the compression spring (9) is fixedly mounted on a side of the limiting rack (6), and the other end of the compression spring (9) is fixedly mounted on a side of the partition (7).

5. The filter mechanism for a fresh air system according to claim 1, characterized in that: The reciprocating motion assembly comprises two reciprocating screw rods (11), both ends of the two reciprocating screw rods (11) are rotatably mounted on the opposite inner walls of the U-shaped groove, the two reciprocating screw rods (11) are connected via a linkage unit, and the rectangular slide plate (15) is threadedly mounted on the two reciprocating screw rods (11).

6. The filter mechanism for a fresh air system according to claim 5, characterized in that: The linkage unit comprises two sprockets (12), the two sprockets (12) are respectively fixedly sleeved on the two reciprocating screw rods (11), a chain (13) is commonly meshed and mounted on the two sprockets (12), a drive motor (14) is fixedly mounted on the side of the air inlet pipe (1), and an output shaft of the drive motor (14) is connected to an end of one of the reciprocating screw rods (11).

7. The filter mechanism for a fresh air system according to claim 1, characterized in that: The collecting assembly comprises a collecting drawer (18), a collecting hole is provided on the side of the air inlet pipe (1), a limiting groove is provided on the collecting hole and the inner wall opposite to the air inlet pipe (1), limiting sliders (19) are slidably installed in the two limiting grooves, two side portions of the collecting drawer (18) are respectively fixedly connected to the opposite side portions of the two limiting sliders (19), a pull ring is provided on the side of the collecting drawer (18), and the collecting drawer (18) is slidably arranged on the top of the supporting frame (17).

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