Dust collection filtering structure of handheld dust collector

Abstract

The dust collection filtering structure of the handheld dust collector comprises a dust collection controller, the front end of the dust collection controller is detachably connected with a dust collection bin, one end of the dust collection controller is fixedly connected with a connecting ring block, and a positioning opening is formed in one end of the dust collection controller. According to the dust collection filtering structure of the handheld dust collector, the positioning block rotates when being inserted into the inner side of the L-shaped disassembly and assembly groove to the bottom, and the positioning anti-falling block is clamped into the inner side of the positioning hole, so that the filtering net frame is positioned outside the filtering positioning frame; the filter frame is positioned on the inner wall of one end of the filter positioning frame through a connecting thread groove and a bottom positioning opening, a second filter screen on the inner wall of the filter frame and a first filter screen at one end of the filter screen frame can intercept most of large-particle dust and impurities in advance, and the amount of dust directly entering the main filter is reduced; therefore, the service life of the main filter is prolonged, and the filter replacement frequency and cost are reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of handheld vacuum cleaners, specifically to a dust collection and filtration structure for a handheld vacuum cleaner. Background Technology

[0002] The dust filter structure of a handheld vacuum cleaner is a key component inside the vacuum cleaner, responsible for separating the sucked-in dust, pollen, and other pollutants from the air to ensure that the exhaust air is clean. When the vacuum cleaner is turned on, the motor drives the fan to rotate, generating a high-speed airflow. The airflow enters the dust cup through the nozzle and pipe. Dust and debris are initially separated in the dust cup by centrifugal force. The remaining fine dust and air mixture enters the filter device, where the dust is further separated by the interception effect of the filter material. After passing through the filter device, the clean air is discharged from the rear of the vacuum cleaner.

[0003] The common dust filtration structure of handheld vacuum cleaners requires frequent replacement of filters or other consumables, resulting in high operating costs and increased household expenses. This is especially true for high-quality filters, which are typically expensive. Furthermore, the frequent replacement of disposable consumables generates a large amount of waste, increasing the pressure on waste disposal and negatively impacting the environment. This also has certain adverse effects on users. Therefore, we propose a dust filtration structure for handheld vacuum cleaners. Utility Model Content

[0004] Technical Problem Solved: Addressing the shortcomings of existing technologies, this utility model provides a dust filtration structure for a handheld vacuum cleaner, offering advantages such as extended filter life and reduced maintenance costs. When the positioning block is inserted into the inner side of the L-shaped disassembly slot to the bottom, it rotates, and the positioning anti-detachment block engages with the inner side of the positioning hole, positioning the filter frame outside the filter positioning frame. The filter frame is positioned on the inner wall of one end of the filter positioning frame via a connecting threaded groove and a bottom positioning port. The second filter screen on the inner wall of the filter frame and the first filter screen at one end of the filter frame can pre-intercept most large dust particles and impurities, reducing the amount of dust directly entering the main filter, thereby extending the lifespan of the main filter. This reduces the frequency and cost of filter replacements, and also reduces vacuum cleaner performance degradation and repair costs caused by filter clogging, effectively solving the problems in the background technology.

[0005] Technical Solution: To achieve the above objectives, the technical solution adopted by this utility model is as follows: a dust collection and filtration structure for a handheld vacuum cleaner, including a dust collection controller, a dust collection chamber detachably connected to the front end of the dust collection controller, a connecting ring block fixedly connected to one end of the dust collection controller, a positioning port opened at one end of the dust collection controller, a filter frame detachably connected to one end of the dust collection controller, a first filter screen fixedly connected to one end of the filter frame, a filter positioning frame detachably connected to the inner wall of the filter frame, and a positioning ring block fixedly connected to one end of the filter positioning frame.

[0006] Preferably, one end of the vacuum controller is fixedly connected to one end of the connecting ring block, the vacuum collection chamber is positioned with the vacuum controller via the connecting ring block, one end of the filter frame is fixedly connected to one end of the first filter, and one end of the positioning ring block is fixedly connected to one end of the filter positioning frame.

[0007] Preferably, a filter element is fixedly connected to the inner wall of the filter positioning frame, and L-shaped disassembly grooves are provided at both the upper and lower ends of the outer wall of the filter positioning frame. Positioning holes are provided on both sides of the inner wall of the L-shaped disassembly grooves. A bottom positioning port is provided on the inner wall of one end of the filter positioning frame. A filter frame is positioned and installed on the inner wall of the bottom positioning port. A second filter screen is fixedly connected to the inner wall of the filter frame, and a connecting threaded groove is provided on the outer wall of the filter frame.

[0008] Preferably, positioning blocks are fixedly connected to both sides of the inner wall of the filter frame, the inner wall of the positioning block is provided with an inner movable hole, a positioning anti-detachment block is movably connected to the inner side of the inner movable hole, an anti-detachment plate is fixedly connected to the rear end of the positioning anti-detachment block, and a damping elastic element is fixedly connected to the rear end of the anti-detachment plate.

[0009] Preferably, the inner wall of the filter positioning frame is fixedly connected to the outer wall of the filter element, the filter frame and the second filter screen are integrally formed, and the filter frame is positioned on the inner wall of the filter positioning frame through a connecting threaded groove and a bottom positioning port.

[0010] Preferably, one side of each positioning block is fixedly connected to both sides of the inner wall of the filter frame, the rear end of each positioning anti-detachment block is fixedly connected to one side of the anti-detachment plate, the other side of the anti-detachment plate is fixedly connected to one end of the damping elastic element, and the other end of the damping elastic element is fixedly connected to the inner wall of the inner movable hole.

[0011] Beneficial Effects: Compared with the prior art, this utility model provides a dust filtration structure for a handheld vacuum cleaner, which has the following beneficial effects: In this dust filtration structure for a handheld vacuum cleaner, when the positioning block is inserted into the inner side of the L-shaped disassembly groove to the bottom and rotates, the positioning anti-dislodgement block is locked into the inner side of the positioning hole, so that the filter frame is positioned outside the filter positioning frame. The filter frame is positioned on the inner wall of one end of the filter positioning frame through the connecting threaded groove and the bottom positioning port. The second filter screen on the inner wall of the filter frame and the first filter screen at one end of the filter frame can pre-intercept most of the large particles of dust and impurities, reducing direct contact with air. The amount of dust entering the main filter is reduced, thus extending the main filter's lifespan and reducing the frequency and cost of filter replacements. This also reduces vacuum cleaner performance degradation and repair costs caused by filter clogging. The positioning anti-detachment block, through its rear-end damping elastic element, can move inside the inner movable hole. The anti-detachment plate at the rear end of the positioning anti-detachment block acts as a limit to prevent detachment. When disassembly is required, rotate the filter frame to disengage the positioning anti-detachment block from the positioning hole, allowing the positioning block to be pulled out from the inside of the L-shaped disassembly slot. This completes the disassembly and assembly of the filter frame and filter positioning bracket, facilitating subsequent cleaning and replacement. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the dust collection and filtration structure of a handheld vacuum cleaner according to the present invention.

[0013] Figure 2 This is a schematic diagram showing the disassembled dust collection controller, dust collection chamber, and filter frame in the dust collection and filtration structure of a handheld vacuum cleaner according to this utility model.

[0014] Figure 3 This is a schematic diagram showing the disassembled filter frame and filter positioning frame in the dust collection and filtration structure of a handheld vacuum cleaner according to this utility model.

[0015] Figure 4 This is a schematic diagram showing the disassembled filter frame and filter positioning frame in the dust collection and filtration structure of a handheld vacuum cleaner according to this utility model.

[0016] Figure 5 This is a schematic diagram of the flipping of the filter frame in the dust collection and filtration structure of a handheld vacuum cleaner according to the present invention.

[0017] In the diagram: 1. Vacuum controller; 2. Vacuum collection bin; 3. Connecting ring block; 4. Positioning port; 5. Filter frame; 6. Filter No. 1; 7. Positioning ring block; 8. Filter positioning frame; 9. Filter element; 10. L-shaped disassembly groove; 11. Positioning hole; 12. Bottom positioning port; 13. Filter frame; 14. Filter No. 2; 15. Connecting threaded groove; 16. Positioning block; 17. Inner movable hole; 18. Anti-detachment plate; 19. Positioning anti-detachment block; 20. Damping elastic element. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] like Figure 1-5 As shown, a dust collection and filtration structure for a handheld vacuum cleaner includes a dust collector 1. A dust collection chamber 2 is detachably connected to the front end of the dust collector 1. A connecting ring block 3 is fixedly connected to one end of the dust collector 1. A positioning port 4 is opened at one end of the dust collector 1. A filter frame 5 is detachably connected to one end of the dust collector 1. A first filter 6 is fixedly connected to one end of the filter frame 5. A filter positioning frame 8 is detachably connected to the inner wall of the filter frame 5. A positioning ring block 7 is fixedly connected to one end of the filter positioning frame 8. The positioning ring block 7 and the positioning port 4 are mutually compatible.

[0020] Furthermore, one end of the vacuum controller 1 is fixedly connected to one end of the connecting ring block 3, the vacuum collection chamber 2 is positioned with the vacuum controller 1 through the connecting ring block 3, one end of the filter frame 5 is fixedly connected to one end of the first filter 6, and one end of the positioning ring block 7 is fixedly connected to one end of the filter positioning frame 8 to enhance the firmness.

[0021] Furthermore, a filter element 9 is fixedly connected to the inner wall of the filter positioning frame 8. L-shaped disassembly grooves 10 are provided at both the upper and lower ends of the outer wall of the filter positioning frame 8. Positioning holes 11 are provided on both sides of the inner wall of the L-shaped disassembly grooves 10. A bottom positioning port 12 is provided on the inner wall of one end of the filter positioning frame 8. A filter frame 13 is positioned and installed on the inner wall of the bottom positioning port 12. A second filter screen 14 is fixedly connected to the inner wall of the filter frame 13. A connecting thread groove 15 is provided on the outer wall of the filter frame 13. The connecting thread groove 15 and the bottom positioning port 12 are mutually compatible.

[0022] Furthermore, positioning blocks 16 are fixedly connected to both sides of the inner wall of the filter frame 5. The inner wall of the positioning block 16 is provided with an inner movable hole 17. A positioning anti-detachment block 19 is movably connected to the inner side of the inner movable hole 17. An anti-detachment plate 18 is fixedly connected to the rear end of the positioning anti-detachment block 19. A damping elastic element 20 is fixedly connected to the rear end of the anti-detachment plate 18 to provide elasticity.

[0023] Furthermore, the inner wall of the filter positioning frame 8 is fixedly connected to the outer wall of the filter element 9, and the filter frame 13 and the second filter screen 14 are integrally formed. The filter frame 13 is positioned on the inner wall of the filter positioning frame 8 through the connecting threaded groove 15 and the bottom positioning port 12, which can be quickly positioned and disassembled.

[0024] Furthermore, one side of the positioning block 16 is fixedly connected to both sides of the inner wall of the filter frame 5, the rear end of the positioning anti-detachment block 19 is fixedly connected to one side of the anti-detachment plate 18, the other side of the anti-detachment plate 18 is fixedly connected to one end of the damping elastic member 20, and the other end of the damping elastic member 20 is fixedly connected to the inner wall of the inner movable hole 17 to enhance stability.

[0025] Working Principle: A dust collection and filtration structure for a handheld vacuum cleaner. During use, the filter frame 5 and filter positioning frame 8 are positioned at one end of the vacuum controller 1 via positioning ring 7 and positioning port 4. The dust collection chamber 2 is positioned at the front end of the vacuum controller 1 via its inner wall threads and connecting ring 3. When the positioning block 16 is inserted into the inner side of the L-shaped disassembly slot 10 to the bottom and rotates, the positioning anti-detachment block 19 engages with the inner side of the positioning hole 11, positioning the filter frame 5 outside the filter positioning frame 8. The filter frame 13 is positioned on the inner wall of one end of the filter positioning frame 8 via connecting threaded groove 15 and bottom positioning port 12. The second filter 14 on the inner wall of the filter frame 13 and the first filter 6 at one end of the filter frame 5 can pre-block... By intercepting most large dust particles and impurities, the amount of dust directly entering the main filter is reduced, thereby extending the service life of the main filter. This reduces the frequency and cost of filter replacement, and also reduces the performance degradation and maintenance costs of the vacuum cleaner caused by filter clogging. The positioning anti-detachment block 19 can move inside the inner movable hole 17 through the action of its rear damping elastic element 20. The anti-detachment plate 18 at the rear end of the positioning anti-detachment block 19 plays a limiting and anti-detachment role. When disassembly is required, rotate the filter screen frame 5 to disengage the positioning anti-detachment block 19 from the positioning hole 11, and the positioning block 16 can be pulled out from the inside of the L-shaped disassembly groove 10, so that the filter screen frame 5 and the filter positioning frame 8 can be disassembled and assembled, which is convenient for subsequent cleaning and replacement.

[0026] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A dust collection and filtration structure for a handheld vacuum cleaner, comprising a dust collection controller (1), characterized in that: The front end of the vacuum controller (1) is detachably connected to a dust collection chamber (2). One end of the vacuum controller (1) is fixedly connected to a connecting ring block (3). One end of the vacuum controller (1) is provided with a positioning port (4). One end of the vacuum controller (1) is detachably connected to a filter frame (5). One end of the filter frame (5) is fixedly connected to a first filter screen (6). The inner wall of the filter frame (5) is detachably connected to a filter positioning frame (8). One end of the filter positioning frame (8) is fixedly connected to a positioning ring block (7).

2. The dust suction and filtration structure of a handheld vacuum cleaner according to claim 1, characterized in that: One end of the vacuum controller (1) is fixedly connected to one end of the connecting ring block (3), the vacuum dust collection chamber (2) is positioned with the vacuum controller (1) through the connecting ring block (3), one end of the filter frame (5) is fixedly connected to one end of the first filter (6), and one end of the positioning ring block (7) is fixedly connected to one end of the filter positioning frame (8).

3. The dust suction and filtration structure of a handheld vacuum cleaner according to claim 2, characterized in that: The filter positioning frame (8) has a filter core (9) fixedly connected to its inner wall. The filter positioning frame (8) has L-shaped disassembly grooves (10) at both the top and bottom ends of its outer wall. The L-shaped disassembly grooves (10) have positioning holes (11) on both sides of their inner walls. The filter positioning frame (8) has a bottom positioning port (12) at one end of its inner wall. The filter frame (13) is positioned and installed on the inner wall of the bottom positioning port (12). The filter frame (13) has a second filter screen (14) fixedly connected to its inner wall. The filter frame (13) has a connecting thread groove (15) on its outer wall.

4. The dust suction and filtration structure of a handheld vacuum cleaner according to claim 3, characterized in that: Positioning blocks (16) are fixedly connected to both sides of the inner wall of the filter frame (5). An inner movable hole (17) is opened on the inner wall of the positioning block (16). A positioning anti-detachment block (19) is movably connected to the inner side of the inner movable hole (17). An anti-detachment plate (18) is fixedly connected to the rear end of the positioning anti-detachment block (19). A damping elastic element (20) is fixedly connected to the rear end of the anti-detachment plate (18).

5. The dust suction and filtration structure of a handheld vacuum cleaner according to claim 4, characterized in that: The inner wall of the filter positioning frame (8) is fixedly connected to the outer wall of the filter core (9). The filter frame (13) and the second filter screen (14) are integrally formed. The filter frame (13) is positioned on the inner wall of the filter positioning frame (8) through the connecting threaded groove (15) and the bottom positioning port (12).

6. The dust suction and filtration structure of a handheld vacuum cleaner according to claim 5, characterized in that: One side of the positioning block (16) is fixedly connected to both sides of the inner wall of the filter frame (5), the rear end of the positioning anti-detachment block (19) is fixedly connected to one side of the anti-detachment plate (18), the other side of the anti-detachment plate (18) is fixedly connected to one end of the damping elastic member (20), and the other end of the damping elastic member (20) is fixedly connected to the inner wall of the inner movable hole (17).

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