Dust filtering device

Abstract

The utility model relates to a dust filtering device in the technical field of filtering, which comprises a filter element assembly and a fan, the filter element assembly comprises a mounting base, an outer filter block, an inner filter block and a connecting block, an outer filter screen and an inner filter screen which assist in dust filtering are respectively arranged in the outer filter block and the inner filter block, and the fan is communicated with the interior of the mounting base; kinetic energy and pressure of air are increased through centrifugal force generated by the draught fan, so that the air with dust sequentially passes through the outer filter block and the inner filter block to reach the interior of the draught fan, and the air with dust is preliminarily filtered through the outer filter block and the inner filter block; the air with dust is secondarily filtered through the outer filter screen and the inner filter screen, a simplified structure is adopted for secondary filtering, meanwhile, the outer filter screen and the inner filter screen are additionally arranged, and the structure is small, exquisite, flexible, convenient to carry and convenient to machine and assemble; and the manufacturing cost is saved, and subsequent cleaning and mounting are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of filtration technology, and in particular to a dust filtration device. Background Technology

[0002] Dust consists of solid particles suspended in the air, typically less than 100 micrometers in diameter. It can originate from various activities, such as industrial production, transportation, construction, and natural disasters. The impact of dust on the environment and human health varies depending on its source, chemical composition, and particle size.

[0003] Dust filtration technologies mainly include mechanical filtration, electrostatic filtration, wet filtration, and high-pressure pulse dust collectors. When selecting a suitable dust filtration solution, the properties, concentration, particle size of the dust, and the specific requirements of the production environment must be considered. Common dust filtration equipment includes bag filters, cyclone dust collectors, and electrostatic precipitators.

[0004] The existing Chinese patent with publication number CN220779410U discloses a dust filtration device, including a body, an air inlet pipe, a fan, a connecting pipe, a partition, a filter bag, a cleaning pipe, a filter box, a collection tank, and a sealing door. The air inlet pipe is installed at the bottom of the body on one side, and the fan is installed at the top of the body. A connecting pipe is installed between the fan and the body. The partition is installed inside the body. In actual use, by setting up the body, air inlet pipe, fan, connecting pipe, partition, filter bag, cleaning pipe, annular head, nozzle, filter box, filter screen, inclined plate, outer sealing frame, spring, locking block, collection tank, and sealing door, the dust attached to the surface of the filter bag can be quickly cleaned by washing it with water. At the same time, the solid dust impurities washed off can be intercepted on the filter screen of the filter box, which facilitates the recycling and reuse of cleaning water. Furthermore, the filter box is easy to disassemble and assemble, and easy to clean. The operation is simple and convenient.

[0005] While this patented device has a filtering effect, its structure occupies a large area and is not easy to disassemble and clean. When it needs to be used in a specific installation environment, such as a small processing workshop, its large structure requires more space and is not flexible in use, increasing the number of steps and reducing work efficiency. Therefore, the inventor has proposed a dust filtering device to solve the above-mentioned technical problems of traditional filtering devices requiring more space and lacking flexibility in use. Utility Model Content

[0006] In order to overcome the shortcomings mentioned above, the utility model aims to provide a technical solution that can solve the above problems.

[0007] A dust filtration device includes a filter element assembly and a fan. The filter element assembly includes a mounting base, an outer filter block, an inner filter block, and a connecting block. The outer filter block is mounted on the outer side of the mounting base. One end of the connecting block abuts against the surface of the inner filter block and the top of the mounting base. The inner filter block is located inside the mounting base. The outer and inner filter blocks are respectively provided with an outer filter screen and an inner filter screen for auxiliary dust filtration. One end of the fan is connected to the surface of the mounting base, and the fan communicates with the interior of the mounting base.

[0008] Furthermore, a power switch is electrically connected to the surface of the fan. One end of the power switch is a power interface for connecting an external power supply cable. The power interface provides a stable power supply to the fan and facilitates the connection of the external power supply cable, thereby ensuring the fan operates normally.

[0009] The fan uses an electric motor to drive the impeller to rotate, thereby generating centrifugal force, which draws air into the fan and discharges it axially. During this process, the blades inside the fan do work on the air, increasing the air's kinetic energy and pressure. Its working principle is based on the principles of momentum conservation and energy conversion in fluid mechanics. Air is drawn into the fan, and because the fan and the mounting base are connected, the dust-laden air passes through the outer and inner filter blocks in sequence before reaching the fan's interior. The outer and inner filter blocks then perform preliminary filtration of the dust-laden air.

[0010] Then, the air containing dust is filtered a second time through the external and internal filter screens installed inside the external and internal filter blocks, achieving a double filtration effect. When the filtration is complete, the air is discharged along the axial direction of the fan, completing the filtration and exhaust process. The simplified secondary filtration structure, with the addition of external and internal filter screens, is compact, flexible, easy to carry, and easy to process and assemble.

[0011] Furthermore, an adjusting ring is connected between the mounting base and the fan to adjust the tightness of the connection. The adjusting ring can effectively adjust the tightness of the connection between the two, improve the stability and reliability of the connection, facilitate the maintenance and replacement of the fan, and improve the shock resistance between the mounting base and the fan, reducing loosening caused by vibration, which could lead to abnormal operation of the fan.

[0012] Furthermore, the mounting base and the fan are connected by connecting screws to increase connection stability. The connecting screws can effectively increase the connection stability between the mounting base and the fan, prevent the connection from loosening due to vibration and other reasons, thereby reducing the vibration frequency, ensuring the normal operation of the fan and extending the service life of the filter structure. The connecting screws are arranged in a matrix structure, which helps to improve connection stability and enhance the overall structure.

[0013] Furthermore, the mounting base and the connecting block are detachable; the detachable structure facilitates maintenance and upgrades, reduces repair costs, and improves the product's flexibility. In addition, when a single component is damaged, the structure can be repaired by replacing it individually, avoiding the need for complete replacement, thus reducing expenses and improving repair efficiency.

[0014] Furthermore, both the outer and inner filter blocks are fin-shaped structures; this structure can effectively increase the filtration area and improve filtration efficiency, while also facilitating cleaning and maintenance. When cleaning is required, the outer and inner filter blocks can be removed and then rinsed with a high-pressure water gun or cleaned with a brush; this helps to clean dirt and impurities, thereby improving filtration efficiency, extending the service life of the equipment, and reducing maintenance costs and downtime.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: the impeller is driven to rotate by the motor of the fan, thereby generating centrifugal force, which draws air into the fan and discharges it along the axis. In this process, the blades inside the fan do work on the air, increasing the kinetic energy and pressure of the air. Its working principle is based on the principle of conservation of momentum and energy conversion in fluid mechanics. The fan draws air into the fan. Since the fan and the mounting base are connected, the air with dust passes through the outer filter block and the inner filter block in sequence, thereby reaching the inside of the fan. The air with dust is initially filtered by the outer filter block and the inner filter block.

[0016] Then, the air containing dust is filtered a second time through the external filter block and the internal filter block, which are installed inside the external filter block and the internal filter block. This achieves the function of two filtrations. When the filtration is completed, the air is discharged along the axis of the fan, completing the filtration and exhaust process. The simplified structure of the secondary filtration, with the addition of external and internal filter screens, makes the structure compact, flexible, easy to carry, and easy to process and assemble.

[0017] This device adopts a simplified structure, saving manufacturing costs while being suitable for purification in small places such as rooms and small processing workshops. The detachable structure facilitates subsequent cleaning and installation, and the secondary filtration structure makes the filtration more delicate, reducing the dust content in the air. Attached Figure Description

[0018] Figure 1 This is a front view of a dust filtration device;

[0019] Figure 2 This is a three-dimensional diagram of a dust filtration device;

[0020] Figure 3 Another perspective view of a dust filtration device;

[0021] Figure 4 This is another 3D view of a dust filtration device;

[0022] In the diagram: Fan-1, Mounting base-2, External filter block-3, Internal filter block-4, Connecting block-5, External filter screen-6, Internal filter screen-7, Power switch-8, Power interface-9, Adjusting ring-10, Connecting screw-11. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] For this embodiment, please refer to Figures 1-4 The dust filtration device specifically implemented therein includes a filter element assembly and a fan 1. The filter element assembly includes a mounting base 2, an outer filter block 3, an inner filter block 4, and a connecting block 5. The outer filter block 3 is installed on the outer side of the mounting base 2. One end of the connecting block 5 abuts against the surface of the inner filter block 4 and the top of the mounting base 2. The inner filter block 4 is located inside the mounting base 2. The outer filter block 3 and the inner filter block 4 are respectively provided with an outer filter screen 6 and an inner filter screen 7 for auxiliary dust filtration. One end of the fan 1 is connected to the surface of the mounting base 2, and the fan 1 is in communication with the interior of the mounting base 2.

[0025] A power switch 8 is electrically connected to the surface of the fan 1. One end of the power switch 8 is a power interface 9, which is used to connect an external power supply cable. The use of the power interface 9 can provide a stable power supply to the fan 1 and facilitate the connection of the external power supply cable, thereby ensuring the normal operation of the fan 1.

[0026] The fan 1 uses an electric motor to drive the impeller to rotate, thereby generating centrifugal force, which draws air into the fan 1 and discharges it along the axial direction. In this process, the blades inside the fan 1 do work on the air, increasing the kinetic energy and pressure of the air. Its working principle is based on the principle of conservation of momentum and energy conversion in fluid mechanics. The fan 1 draws air into the fan 1. Since the fan 1 is connected to the interior of the mounting base 2, the air with dust passes through the outer filter block 3 and the inner filter block 4 in sequence, thereby reaching the interior of the fan 1. The air with dust is initially filtered by the outer filter block 3 and the inner filter block 4. The principle of the fan 1 in this embodiment is based on existing technology.

[0027] Then, the air containing dust is filtered a second time through the outer filter block 3 and the inner filter block 4, which are equipped with outer filter screen 6 and inner filter screen 7. This achieves the effect of two-stage filtration. When the filtration is completed, the air is discharged along the axial direction of the fan 1, completing the filtration and exhaust process. The simplified structure of secondary filtration, with the addition of outer filter screen 6 and inner filter screen 7, makes the structure compact, flexible, easy to carry, and easy to process and assemble.

[0028] An adjusting ring 10 is connected between the mounting base 2 and the fan 1 to adjust the tightness of the connection. The adjusting ring 10 can effectively adjust the tightness of the connection between the two, improve the stability and reliability of the connection, facilitate the maintenance and replacement of the fan 1, and improve the shock resistance between the mounting base 2 and the fan 1, reducing loosening caused by vibration, which could lead to abnormal operation of the fan 1.

[0029] The mounting base 2 and the fan 1 are connected by connecting screws 11 to increase the connection stability. The connecting screws 11 can effectively increase the connection stability between the mounting base 2 and the fan 1, prevent the connection from loosening due to vibration and other reasons, thereby reducing the vibration frequency, ensuring the normal operation of the fan 1 and extending the service life of the filter structure. The connecting screws 11 are arranged in a matrix structure, which helps to improve the connection stability and enhance the overall structure.

[0030] The mounting base 2 and the connecting block 5 are detachable; the detachable structure facilitates maintenance and upgrades, reduces repair costs, and improves the flexibility of product use. In addition, when a single component is damaged, the structure can be repaired by replacing it individually, avoiding the need for complete replacement, thus reducing expenses and improving maintenance efficiency.

[0031] Both the outer filter block 3 and the inner filter block 4 are fin-shaped structures. This structure can effectively increase the filtration area and improve the filtration efficiency. At the same time, it is easy to clean and maintain. When cleaning is required, the outer filter block 3 and the inner filter block 4 can be removed and then rinsed with a high-pressure water gun or cleaned with a brush. This can clean dirt and impurities, so as to improve the filtration efficiency, extend the service life of the equipment, and reduce maintenance costs and downtime.

[0032] The key design features of this invention are as follows: the impeller of the fan 1 is driven by an electric motor to rotate, thereby generating centrifugal force, which draws air into the fan 1 and discharges it along the axial direction. During this process, the blades inside the fan 1 do work on the air, increasing the kinetic energy and pressure of the air. Its working principle is based on the principle of conservation of momentum and energy conversion in fluid mechanics. The fan 1 draws air into the fan 1. Since the fan 1 is connected to the interior of the mounting base 2, the air containing dust passes through the outer filter block 3 and the inner filter block 4 in sequence, thereby reaching the interior of the fan 1. The air containing dust is initially filtered by the outer filter block 3 and the inner filter block 4.

[0033] Then, the air containing dust is filtered a second time through the outer filter block 3 and the inner filter block 4, which are equipped with outer filter screen 6 and inner filter screen 7. This achieves the effect of two-stage filtration. When the filtration is completed, the air is discharged along the axial direction of the fan 1, completing the filtration and exhaust process. The simplified structure of secondary filtration, with the addition of outer filter screen 6 and inner filter screen 7, makes the structure compact, flexible, easy to carry, and easy to process and assemble.

[0034] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A dust filtration device, comprising a filter element assembly and a fan, characterized in that: The filter element assembly includes a mounting base, an outer filter block, an inner filter block, and a connecting block. The outer filter block is mounted on the outer side of the mounting base. One end of the connecting block abuts against the surface of the inner filter block and the top of the mounting base. The inner filter block is located inside the mounting base. The outer and inner filter blocks are respectively provided with an outer filter screen and an inner filter screen for auxiliary dust filtration. One end of the fan is connected to the surface of the mounting base, and the fan is in communication with the interior of the mounting base.

2. The dust filtration device according to claim 1, characterized in that: The surface of the fan is electrically connected to a power switch, one end of which is a power interface for connecting an external power supply cable.

3. The dust filtration device according to claim 1, characterized in that: An adjusting ring for adjusting the tightness is connected between the mounting base and the fan.

4. A dust filtration device according to any one of claims 1-3, characterized in that: The mounting base is connected to the fan by connecting screws to increase connection stability.

5. A dust filtration device according to any one of claims 1-3, characterized in that: The mounting base and the connecting block are detachable.

6. A dust filtration device according to any one of claims 1-3, characterized in that: Both the outer filter block and the inner filter block have a fin-shaped structure.

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