A prefilter cartridge

Abstract

This utility model discloses a pre-filter element, including an upper end cover and a lower end cover. A cylindrical filter element is disposed between the lower end cover and the upper end cover. The filter element has a central hole. An air inlet connected to the central hole is opened on the upper end cover. A turbulence shaft rotatably connected to the lower end cover is disposed in the central hole. A blade is disposed on the turbulence shaft near the air inlet. A multi-faceted shaft is connected in series on the turbulence shaft. The number of faces of the multi-faceted shaft is N. Each side of the multi-faceted shaft is provided with a guide vane that guides the airflow laterally. The axial positions of all guide vanes are different; N≥3. A bracket is disposed in the central hole and connected to the upper end cover. The turbulence shaft is also rotatably connected to the bracket. This filter element, through the built-in turbulence element, allows the air entering the filter element to be evenly dispersed in the central hole, so that the filtration position is not concentrated, the distribution is uniform, the filtration effect is good, the spacing extends the service life of the filter element, the overall function is perfect, and the practicality is strong.

Description

Technical Field

[0001] This utility model relates to the field of filtration equipment technology, and more specifically, to a pre-filter cartridge. Background Technology

[0002] Conventional pre-filters are equipped with cartridge-type air filters. These filters are named for their hollow cylindrical shape and are a common structural type in air filtration systems. They are widely used in automobiles, construction machinery, industrial equipment, generator sets, and other scenarios that require air filtration.

[0003] When loaded into the pre-filter, its simple structure and lack of internal airflow turbulence elements result in overly concentrated and unevenly distributed filtration positions, leading to poor overall performance. Therefore, this invention proposes a pre-filter element. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a pre-filter cartridge.

[0005] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows: A pre-filter element of this utility model includes an upper end cover and a lower end cover. A cylindrical filter element is disposed between the lower end cover and the upper end cover. The filter element has a central hole. An air inlet connected to the central hole is provided on the upper end cover. A turbulence shaft rotatably connected to the lower end cover is disposed within the central hole. A blade is disposed on the turbulence shaft near the air inlet. A multi-faceted shaft is connected in series on the turbulence shaft. The number of faces of the multi-faceted shaft is N. Each side of the multi-faceted shaft is provided with a guide vane for lateral airflow. The axial positions of all guide vanes are different; N≥3.

[0006] The present invention is further configured such that: a bracket is provided in the central hole, the bracket is connected to the upper end cover, and the turbulence shaft is also rotatably connected to the bracket.

[0007] The present invention is further configured such that the turbulence shaft and the central hole are arranged on the same axis.

[0008] The present invention is further configured such that: the filter element has an outer mesh frame around it, the upper end of the outer mesh frame is connected to the upper end cover, and the lower end is connected to the lower end cover.

[0009] The present invention is further configured such that: the filter element has an inner mesh frame inside, the upper end of the inner mesh frame is connected to the upper end cover, and the lower end is connected to the lower end cover.

[0010] The present invention is further configured such that N = 4.

[0011] In summary, the present invention has the following beneficial effects: the pre-filter cartridge involved in the present invention, through the built-in turbulence-dispersing element, allows the air entering the cartridge to be evenly dispersed in the central hole, so that the filtration position is not concentrated, the distribution is uniform, the filtration effect is good, the spacing extends the service life of the cartridge, the overall function is perfect, and the practicality is strong. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a partial structural schematic diagram of the present invention. Detailed Implementation

[0014] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that these descriptions are only for further illustrating the features and advantages of this utility model, and not for limiting the patent claims of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0015] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0016] Example 1

[0017] See Figure 1 and Figure 2 As shown, the pre-filter cartridge involved in this embodiment includes an upper end cover 1 and a lower end cover 2. A cylindrical filter cartridge 3 is provided between the lower end cover 2 and the upper end cover 1. The filter cartridge 3 has a central hole 4. An air inlet 5 connected to the central hole is provided on the upper end cover 1. A turbulence shaft 6 rotatably connected to the lower end cover is provided in the central hole 4. The turbulence shaft 6 is coaxial with the central hole 4. A blade 7 near the air inlet is provided on the turbulence shaft 6. A multi-faceted shaft 8 is connected in series on the turbulence shaft 6. The number of faces of the multi-faceted shaft 8 is N. Each side of the multi-faceted shaft 8 is provided with a guide vane 9 that guides the airflow laterally. The axial positions of all guide vanes 9 are different; N = 4.

[0018] Furthermore, the filter element 3 has an outer mesh frame 11 around its periphery, with the upper end of the outer mesh frame 11 connected to the upper end cover 1 and the lower end connected to the lower end cover 2; the filter element 3 has an inner mesh frame 12 around its periphery, with the upper end of the inner mesh frame 12 connected to the upper end cover 1 and the lower end connected to the lower end cover 2.

[0019] In this embodiment, the air to be filtered enters the central hole 4 from the air inlet 5. The airflow blows onto the blades 7, causing the turbulence shaft 6 to rotate. At the same time, it causes the polygonal shaft 8 and its guide vanes 9 to rotate, so that the airflow flowing through the blades 7 will be laterally guided by each guide vane 9 and evenly impact the inner wall of the filter element 3 to ensure that the filtration position is evenly distributed.

[0020] The outer mesh frame 11 and the inner mesh frame 12 are used to securely install the filter element 3.

[0021] Example 2

[0022] See Figure 1 and Figure 2 As shown, the pre-filter cartridge involved in this embodiment is further configured based on embodiment 1, wherein a bracket 10 is provided in the central hole 4, the bracket 10 is connected to the upper end cover 1, and the turbulence shaft 6 is also rotatably connected to the bracket 10.

[0023] In this embodiment, the bracket 10 is used to securely mount the spoiler shaft 6.

[0024] The pre-filter cartridge involved in this utility model, through the built-in turbulence-dispersing element, allows the air entering the cartridge to be evenly dispersed within the central hole, so that the filtration position is not concentrated, the distribution is uniform, the filtration effect is good, the spacing extends the service life of the cartridge, the overall function is perfect, and the practicality is strong.

[0025] Unless otherwise specified, in this utility model, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the actual orientation or positional relationship shown. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe orientation or positional relationships in this utility model are for illustrative purposes only and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the embodiments and according to the specific circumstances.

[0026] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A pre-filter cartridge, comprising an upper end cover and a lower end cover, wherein a cylindrical cartridge is disposed between the lower end cover and the upper end cover, the cartridge having a central hole, and an air inlet connected to the central hole is provided on the upper end cover, characterized in that: The central hole is equipped with a rotatable swivel shaft connected to the lower end cover. The swivel shaft is equipped with blades near the air inlet. A multi-faceted shaft is connected in series on the swivel shaft. The number of facets of the multi-faceted shaft is N. Each side of the multi-faceted shaft is equipped with a guide vane that guides the airflow laterally. The axial positions of all guide vanes are different; N≥3.

2. The pre-filter cartridge according to claim 1, characterized in that: A bracket is provided inside the central hole, and the bracket is connected to the upper end cover. The turbulence shaft is also rotatably connected to the bracket.

3. The pre-filter cartridge according to claim 1 or 2, characterized in that: The turbulence shaft is coaxial with the central hole.

4. The pre-filter cartridge according to claim 3, characterized in that: The filter element has an outer mesh frame around its periphery. The upper end of the outer mesh frame is connected to the upper end cover, and the lower end is connected to the lower end cover.

5. The pre-filter cartridge according to claim 4, characterized in that: The filter element has an inner mesh frame inside, with the upper end of the inner mesh frame connected to the upper end cover and the lower end connected to the lower end cover.

6. The pre-filter cartridge according to claim 1, characterized in that: The value of N is 4.

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