Self-cleaning dust collector filter screen

Abstract

The utility model provides a self-cleaning dust collector filter screen, which belongs to the technical field of household appliances, aims to solve the problem that the suction force is reduced due to dust blockage in the use process of the conventional dust collector filter screen, and comprises an exhaust fan which is arranged at the rear end part of the device; the driving fan blade shell is of a cylindrical shell structure, and the driving fan blade shell is fixedly arranged on the front end face of the exhaust fan; the dust collector filter screen is arranged in the filter screen shell; the filter screen cleaning bracket is of a frame structure with a cylindrical appearance; the filter screen self-cleaning assembly is arranged in the filter screen shell; and the protective shell quick connecting assembly is arranged at the joint of the filter screen shell and the driving fan blade shell. The cleaning device has the comprehensive advantages that the cleaning performance is continuous and efficient, the user experience and convenience are improved, the reliability is enhanced, and the service life is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of household appliance technology, and more specifically, it relates to a self-cleaning vacuum cleaner filter. Background Technology

[0002] Self-cleaning vacuum cleaner filters are special filters designed to automatically remove dust and impurities from their own surface. They aim to maintain the vacuum cleaner's optimal performance and reduce user maintenance. Existing self-cleaning vacuum cleaner filters generally require opening the vacuum cleaner casing after use and placing the filter part into a specially designed cleaning device for automatic cleaning.

[0003] Based on the above, existing self-cleaning vacuum cleaner filter designs require users to manually open the vacuum cleaner casing and place the filter into a specially designed cleaning device after use for automatic cleaning. This often leads to reduced suction power due to dust clogging, affecting cleaning efficiency and causing several drawbacks. First, as dust accumulates on the filter, the vacuum cleaner's suction power significantly weakens, resulting in a greatly reduced cleaning effect. Users are forced to frequently pause cleaning to clean or replace the filter, increasing the burden and time cost. Second, a clogged filter forces the motor to work harder to maintain suction, consuming more electricity and potentially shortening its lifespan due to overheating or excessive load, increasing maintenance and replacement costs. Finally, failing to clean a clogged filter in a timely manner may allow some fine particles to re-enter the air, reducing indoor air quality and posing a potential health risk to users. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a self-cleaning vacuum cleaner filter to solve the problem of reduced suction power caused by dust clogging during the use of existing vacuum cleaner filters.

[0005] The purpose and function of this self-cleaning vacuum cleaner filter are achieved by the following specific technical means:

[0006] A self-cleaning vacuum cleaner filter includes:

[0007] An exhaust fan, wherein the exhaust fan is located at the rear end of the device;

[0008] A drive fan blade housing, wherein the drive fan blade housing is a cylindrical housing structure and is fixedly mounted on the front end face of the exhaust fan;

[0009] The filter screen housing is a cylindrical shell structure, and the rear end of the filter screen housing is located at the front end of the drive fan blade housing;

[0010] Cleaning drive fan blades, wherein the cleaning drive fan blades are rotatably disposed inside the drive fan blade housing;

[0011] A vacuum cleaner filter screen is disposed inside a filter screen housing and is fixedly disposed on the front end face of the drive fan blade housing.

[0012] The filter cleaning bracket is a cylindrical frame structure. The filter cleaning bracket is set inside the filter housing and is slidably connected to the surface of the vacuum cleaner filter through a ring structure at the rear end.

[0013] A filter self-cleaning component, wherein the filter self-cleaning component is disposed inside the filter housing;

[0014] A quick-connect assembly for the protective housing is disposed at the junction of the filter housing and the drive fan blade housing.

[0015] Furthermore, the filter self-cleaning component includes:

[0016] The power spline shaft is a spline shaft structure with trapezoidal splines, and the rear end of the power spline shaft is synchronously fixed on the front end face of the cleaning drive fan blade.

[0017] The reciprocating drive shaft is cylindrical in shape. A rectangular reciprocating track groove is formed on the surface of the reciprocating drive shaft. An internal spline hole is formed concentrically on the reciprocating drive shaft. The spline hole formed on the reciprocating drive shaft cooperates with the spline structure on the surface of the power spline shaft. The power spline shaft and the reciprocating drive shaft together constitute a spline shaft transmission mechanism.

[0018] Furthermore, the filter self-cleaning component also includes:

[0019] The reciprocating guide block is a cylindrical block structure. It is fixedly installed on the front end face of the vacuum cleaner filter. The upper end of the reciprocating guide block is slidably connected to a rectangular reciprocating track groove opened on the surface of the reciprocating drive shaft. The rectangular reciprocating track groove of the reciprocating drive shaft and the reciprocating guide block together constitute a linear reciprocating motion mechanism.

[0020] Furthermore, the filter self-cleaning component also includes:

[0021] A reciprocating limiting baffle, which is an annular mechanism slightly larger than the circumference of the vacuum cleaner filter, is fixedly installed at the front end of the vacuum cleaner filter.

[0022] Furthermore, the filter self-cleaning component also includes:

[0023] The enhanced cleaning scraper consists of several rubber strips, which are circumferentially distributed on the inner wall of the rear end of the filter cleaning bracket.

[0024] Furthermore, the protective housing quick-connect assembly includes:

[0025] A quick-connect external thread is provided at the front end of the drive fan blade housing;

[0026] The quick-connect internal thread is located on the inner wall of the rear end of the filter screen housing. The quick-connect external thread and the quick-connect internal thread mesh with each other to form a threaded connection mechanism.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] First, the new self-cleaning component uses the suction power generated by the exhaust fan to clean the filter simultaneously, ensuring that the filter surface does not easily become clogged during use. This instant cleaning mechanism maintains the vacuum cleaner's high suction power and avoids the problem of reduced suction power due to filter clogging, thus ensuring a stable and efficient cleaning effect over a long period of time. In addition, the long, strip-shaped rubber cleaning blade enhances cleaning efficiency, more thoroughly removing fine particles and stubborn dirt from the filter, further ensuring the vacuum cleaner's performance.

[0029] Secondly, the quick-connect assembly of the protective shell uses a threaded connection, making the installation between the filter housing and the filter screen more secure and easier to disassemble. This improvement not only increases the efficiency of emptying dust but also simplifies daily maintenance and reduces the user's workload. Users can more easily clean or replace the filter without worrying about loose connections, thus enhancing the overall user experience.

[0030] This design not only improves the reliability of the vacuum cleaner during operation but also reduces the probability of machine malfunctions caused by filter problems by effectively preventing filter clogging, indirectly extending the vacuum cleaner's lifespan. Simultaneously, the efficient self-cleaning function reduces the frequency of filter replacement, lowering long-term operating costs and contributing positively to environmental protection. In summary, the new self-cleaning vacuum cleaner filter design optimizes the product's practicality and durability, providing users with a more reliable option.

[0031] This invention features a self-cleaning component. After the vacuum cleaner is started, the fan slides back and forth across the filter surface, cleaning it simultaneously using the generated suction to remove dust from the filter, preventing clogging and maintaining stable suction. Meanwhile, the rubber-reinforced cleaning scraper included in the component further enhances the cleaning effect, ensuring the filter is always in optimal condition. Furthermore, the quick-connect assembly for the protective shell uses a threaded connection, achieving a secure connection and quick disassembly between the filter shell and the filter, improving efficiency when emptying dust and simplifying maintenance. This design not only guarantees long-term, high-efficiency cleaning performance but also reduces the user's workload, extends the vacuum cleaner's lifespan, and lowers long-term operating costs, providing users with a more convenient and reliable cleaning solution. Attached Figure Description

[0032] Figure 1 This is a front view structural schematic diagram of the main body of this utility model.

[0033] Figure 2 This is a structural schematic diagram of the main body of this utility model from the rear.

[0034] Figure 3 This is a schematic diagram of the exploded view of the main body of this utility model.

[0035] Figure 4 This is a structural schematic diagram of the self-cleaning filter component of this utility model.

[0036] Figure 5 This is a schematic diagram of the structure of the self-cleaning filter component of this utility model after the filter is hidden.

[0037] Figure 6 This is a structural schematic diagram of the splined fit between the power splined shaft and the reciprocating drive shaft of this utility model.

[0038] Figure 7 This is a utility model Figure 4 A structural schematic diagram of the enlarged view at point A in the middle.

[0039] Figure 8 This is a utility model Figure 3 A structural schematic diagram of the enlarged view at point B in the middle.

[0040] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0041] 1. Power spline shaft; 2. Reciprocating drive shaft; 3. Reciprocating guide block; 4. Reciprocating limit baffle; 5. Reinforced cleaning scraper; 6. Quick-connect external thread; 7. Quick-connect internal thread; 8. Exhaust fan; 9. Drive fan blade housing; 10. Cleaning drive fan blade; 11. Vacuum cleaner filter; 12. Filter cleaning bracket; 13. Filter housing. Detailed Implementation

[0042] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0043] Example 1:

[0044] As attached Figure 1 To be continued Figure 8 As shown:

[0045] This utility model provides a self-cleaning vacuum cleaner filter, comprising:

[0046] Exhaust fan 8 is located at the rear end of the device;

[0047] Drive fan blade housing 9, which is a cylindrical housing structure, is fixedly installed on the front end face of the exhaust fan 8.

[0048] The filter screen housing 13 is a cylindrical shell structure, and the rear end of the filter screen housing 13 is located at the front end of the drive fan blade housing 9.

[0049] Cleaning drive fan blade 10 is rotatably disposed inside drive fan blade housing 9;

[0050] Vacuum cleaner filter 11 is disposed inside the filter housing 13 and is fixedly disposed on the front end face of the drive fan blade housing 9.

[0051] The filter cleaning bracket 12 is a cylindrical frame structure. The filter cleaning bracket 12 is set inside the filter housing 13 and is slidably connected to the surface of the vacuum cleaner filter 11 through the ring structure at the rear end.

[0052] A filter self-cleaning component is disposed inside the filter housing 13.

[0053] The protective housing quick-connect assembly is located at the junction of the filter housing 13 and the drive fan blade housing 9.

[0054] The filter self-cleaning component includes:

[0055] The power spline shaft 1 is a spline shaft structure with trapezoidal splines. The rear end of the power spline shaft 1 is synchronously fixed on the front end face of the cleaning drive fan blade 10.

[0056] The reciprocating drive shaft 2 is a cylindrical structure with a rectangular reciprocating track groove on its surface and an inner spline hole concentrically formed therein. The spline hole on the reciprocating drive shaft 2 cooperates with the spline structure on the surface of the power spline shaft 1. The power spline shaft 1 and the reciprocating drive shaft 2 together constitute a spline shaft transmission mechanism. In use, after the vacuum cleaner is started, the suction force generated by the rotation of the exhaust fan 8 is used to perform vacuuming. At the same time, the suction force generated drives the cleaning drive fan blade 10 to rotate, which in turn drives the power spline shaft 1 to rotate. Since the power spline shaft 1 and the reciprocating drive shaft 2 together constitute a spline shaft transmission mechanism, the reciprocating drive shaft 2 drives the filter cleaning bracket 12 to rotate, thus enabling the filter cleaning bracket 12 to move back and forth.

[0057] The filter self-cleaning component also includes:

[0058] The reciprocating guide block 3 is a cylindrical block structure. It is fixedly installed on the front end face of the vacuum cleaner filter 11. The upper end of the reciprocating guide block 3 is slidably connected to the rectangular reciprocating track groove opened on the surface of the reciprocating drive shaft 2. The rectangular reciprocating track groove of the reciprocating drive shaft 2 and the reciprocating guide block 3 together form a linear reciprocating motion mechanism. In use, when the reciprocating drive shaft 2 rotates, the rectangular reciprocating track groove of the reciprocating drive shaft 2 and the reciprocating guide block 3 together form a linear reciprocating motion mechanism. At the same time, the spline hole opened on the reciprocating drive shaft 2 and the spline structure on the surface of the power spline shaft 1 cooperate with each other, so that the reciprocating drive shaft 2 drives the filter cleaning bracket 12 to rotate and reciprocate back and forth at the same time. Its function is to enable the filter cleaning bracket 12 to use the generated suction to clean the vacuum cleaner filter 11 synchronously when the exhaust fan 8 is working, so as to prevent the surface of the vacuum cleaner filter 11 from being blocked and affecting the suction.

[0059] The filter self-cleaning component also includes:

[0060] The reciprocating limiting baffle 4 is an annular mechanism with a circumference slightly larger than that of the vacuum cleaner filter 11. The reciprocating limiting baffle 4 is fixedly installed at the front end of the vacuum cleaner filter 11. In use, the reciprocating limiting baffle 4 can limit the forward movement of the filter cleaning bracket 12, so that the filter cleaning bracket 12 will not detach from the surface of the vacuum cleaner filter 11 when cleaning the vacuum cleaner filter 11.

[0061] The filter self-cleaning component also includes:

[0062] The enhanced cleaning scraper 5 is a long strip of rubber with several pieces. These pieces are distributed circumferentially on the inner wall of the rear end of the filter cleaning bracket 12. In use, the long strip of rubber enhanced cleaning scraper 5 can enhance the cleaning effect of the filter cleaning bracket 12 on the vacuum cleaner filter 11 by utilizing its sharp edges.

[0063] The protective housing quick-connect assembly includes:

[0064] Quick-connect external thread 6 is provided at the front end of the drive fan blade housing 9;

[0065] The quick-connect internal thread 7 is located on the inner wall of the rear end of the filter screen housing 13. The quick-connect external thread 6 and the quick-connect internal thread 7 mesh with each other to form a threaded connection mechanism. In use, the quick-connect external thread 6 and the quick-connect internal thread 7 are connected by a threaded connection, which can make the connection more secure and the disassembly more convenient, improving the efficiency of dust emptying and the reliability of use.

[0066] The specific usage and function of this first embodiment are as follows:

[0067] In use, after the vacuum cleaner is started, the suction power generated by the rotating fan 8 is used for vacuuming. Simultaneously, the suction power drives the cleaning drive fan blades 10 to rotate, which in turn drives the power spline shaft 1 to rotate. Since the power spline shaft 1 and the reciprocating drive shaft 2 together form a spline shaft transmission mechanism, the reciprocating drive shaft 2 drives the filter cleaning bracket 12 to rotate, thus providing the filter cleaning bracket 12 with the necessary conditions for back-and-forth movement. When the reciprocating drive shaft 2 rotates, the rectangular reciprocating track groove of the reciprocating drive shaft 2 and the reciprocating guide block 3 together form a linear reciprocating motion mechanism. At the same time, the spline hole in the reciprocating drive shaft 2 cooperates with the spline structure on the surface of the power spline shaft 1, thereby enabling the reciprocating drive shaft 2 to drive the filter cleaning bracket 12 to simultaneously rotate and reciprocate back and forth. The design allows the filter cleaning bracket 12 to simultaneously clean the vacuum cleaner filter 11 using the suction generated when the exhaust fan 8 is working, preventing the surface of the vacuum cleaner filter 11 from becoming clogged and affecting suction. The reciprocating limit baffle 4 limits the forward movement of the filter cleaning bracket 12, ensuring that the filter cleaning bracket 12 does not detach from the surface of the vacuum cleaner filter 11 during cleaning. The long, strip-shaped rubber cleaning scraper 5 enhances the cleaning effect of the filter cleaning bracket 12 on the vacuum cleaner filter 11 with its sharp edges. The quick-connect external thread 6 and quick-connect internal thread 7 are connected by threads, allowing for a tighter connection and quicker disassembly, improving the efficiency of emptying dust and the reliability during use.

Claims

1. A self-cleaning dust cleaner filter screen, characterized by: The self-cleaning dust collector filter screen comprises: An air extractor (8) arranged at the rear end of the device; A driving fan blade housing (9) in a cylindrical shell structure, which is fixedly arranged at the front end of the air extractor (8); A filter screen housing (13) in a cylindrical shell structure, which is arranged at the front end of the driving fan blade housing (9); A cleaning driving fan blade (10) rotatably arranged in the driving fan blade housing (9); A dust collector filter screen (11) arranged in the filter screen housing (13), which is fixedly arranged at the front end of the driving fan blade housing (9); A filter screen cleaning support (12) in a frame structure with a cylindrical appearance, which is arranged in the filter screen housing (13) and is slidably connected to the surface of the dust collector filter screen (11) through a circular structure at the rear end; A filter screen self-cleaning assembly arranged in the filter screen housing (13); A protective shell quick connection assembly arranged at the joint of the filter screen housing (13) and the driving fan blade housing (9).

2. The self-cleaning dust cleaner filter screen according to claim 1, wherein: The filter screen self-cleaning assembly comprises: A power spline shaft (1) in a spline shaft structure provided with trapezoidal splines, which is fixedly arranged at the front end of the cleaning driving fan blade (10); A reciprocating driving shaft (2) in a cylindrical structure, which is provided with a rectangular reciprocating track groove on the surface and is provided with an internal spline hole concentrically, the spline hole of the reciprocating driving shaft (2) cooperates with the spline structure on the surface of the power spline shaft (1), and the power spline shaft (1) and the reciprocating driving shaft (2) jointly form a spline shaft transmission mechanism.

3. The self-cleaning dust cleaner filter screen of claim 1, wherein: The filter screen self-cleaning assembly further comprises: A reciprocating guide block (3) in a cylindrical block structure, which is fixedly arranged at the front end of the dust collector filter screen (11) and is slidably connected to the rectangular reciprocating track groove provided on the surface of the reciprocating driving shaft (2), and the rectangular reciprocating track groove of the reciprocating driving shaft (2) and the reciprocating guide block (3) jointly form a linear reciprocating motion mechanism.

4. The self-cleaning dust cleaner filter screen of claim 1, wherein: The filter screen self-cleaning assembly further comprises: A reciprocating limiting baffle (4) in an annular mechanism slightly larger than the circumference of the dust collector filter screen (11), which is fixedly arranged at the front end of the dust collector filter screen (11).

5. The self-cleaning dust cleaner filter screen of claim 1, wherein: The filter screen self-cleaning assembly further comprises: A reinforced cleaning blade (5) in a rubber strip structure, which is circumferentially distributed on the inner wall of the rear end of the filter screen cleaning support (12).

6. The self-cleaning dust cleaner filter screen of claim 1, wherein: The protective shell quick connection assembly comprises: Quick connection outer thread (6) is set in the front end of the driving fan blade shell (9); Quick connection inner thread (7) is set in the rear end inner wall of the filter screen shell (13), and the quick connection outer thread (6) and the quick connection inner thread (7) are engaged with each other to form a threaded connection mechanism.

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