Filter fan

Abstract

The utility model discloses a filtering fan which comprises a shell body and a filtering body, a stepped groove is formed in the shell body, a clamping ring is arranged in the stepped groove, a guide column is arranged in the middle of the clamping ring, the guide column is connected with a limiting ring, and by designing the stepped groove and the clamping ring structure, the filtering body can be conveniently installed and fixed, and meanwhile the stability of the filtering body is guaranteed; a guide column and a limiting ring are arranged, so that the filter body is mounted more accurately and quickly; through the connection of the one-way valve and the cloth bag, the filter body can be conveniently and preliminarily cleaned, the blockage problem of the filter body is effectively relieved, and the service life of the filter body is prolonged; due to the design of the conical fan cover, the air velocity at the air inlet can be increased, so that air passes through the filter body more quickly, and the filter efficiency is improved; due to the design of the assembly plate and the assembly groove, the fan can be conveniently fixed to the installation position, and the stability of the fan is improved; due to the arrangement of the tool groove, the limiting ring and the guide column are connected more easily and conveniently, and the installation efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fans, and in particular relates to a filtering fan. Background Art

[0002] In industrial production, laboratory research and daily life, filter fans are widely used in various environments as a common ventilation equipment. However, there are some problems in the design and use of traditional filter fans. For example, the replacement process of the filter body is often complicated and cumbersome, requiring professional tools and personnel to operate, which increases maintenance costs and time. In addition, the fixing method of the filter body is not stable enough and is prone to falling off or shifting when running at high speed, which not only affects the filtering effect of the fan, but may also cause damage to the equipment. Therefore, it is necessary to improve the existing filter fans to improve their efficiency and safety. Utility Model Content

[0003] In order to solve the problems raised in the above-mentioned background technology, the utility model provides the following technical solutions: a filter fan, comprising a shell body and a filter body, the front and rear ends of the shell body are respectively an air inlet and an air outlet, and the characteristic is that: a stepped groove matched with the filter body is opened in the shell body, a clamping ring is arranged in the stepped groove, a guide column is arranged in the middle of the clamping ring, the guide column is connected to a limiting ring, the filter body is sequentially sleeved on the guide column, and the two ends of the filter body are respectively abutted against the limiting ring and the clamping ring.

[0004] Furthermore, a one-way valve is provided on the outer wall of the shell body, and the one-way valve is located between the clamping ring and the air outlet.

[0005] Furthermore, the air inlet is connected to a conical wind hood, a small port of the conical wind hood is arranged away from the air inlet, and a large port of the conical wind hood is in contact with the filter body.

[0006] Furthermore, an assembly plate is provided on the outer wall of the shell body, and an assembly groove is provided on the assembly plate.

[0007] Furthermore, the assembly plate is symmetrically arranged on the outer wall of the shell body.

[0008] Furthermore, a tool groove is formed at the end of the limiting ring.

[0009] Furthermore, the large port of the conical wind hood is threadedly connected to the air inlet.

[0010] Furthermore, a gap is provided between the assembly plate and the shell body.

[0011] The beneficial effects of the utility model are as follows: by designing the stepped groove and the clamping ring structure, the filter body can be conveniently installed and fixed while ensuring the stability of the filter body; the provision of the guide column and the limit ring makes the installation of the filter body more accurate and quick; through the connection of the one-way valve and the cloth bag, the filter body can be conveniently preliminarily cleaned, effectively alleviating the clogging problem of the filter body and extending the service life of the filter body; the design of the conical wind hood can increase the air flow rate at the air inlet, allowing the air to pass through the filter body faster and improving the filtration efficiency; the design of the assembly plate and the assembly groove makes it convenient to fix the fan in the installation position, thereby improving the stability of the fan; the provision of the tool groove makes the connection between the limit ring and the guide column easier and improves the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a first-perspective stereogram of the present invention;

[0013] Figure 2 This is a second perspective stereogram of the utility model

[0014] Figure 3 It is a left view of the utility model;

[0015] Figure 4 for Figure 3 Schematic diagram of the section along the AA direction;

[0016] Figure 5 It is an explosion diagram of the utility model.

[0017] The meaning of the numbers in the figure are as follows: 1 - shell body; 2 - filter body; 3 - air inlet; 4 - air outlet; 5 - stepped groove; 6 - clamping ring; 7 - guide column; 8 - limit ring; 9 - one-way valve; 10 - conical air hood; 11 - assembly plate; 12 - assembly groove; 13 - tool groove. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1-5The utility model provides the following technical solutions: a filter fan, comprising a shell body 1 and a filter body 2, the front and rear ends of the shell body 1 are respectively an air inlet 3 and an air outlet 4, characterized in that: a stepped groove 5 adapted to the filter body 2 is opened in the shell body 1, a clamping ring 6 is arranged in the stepped groove 5, a guide column 7 is arranged in the middle of the clamping ring 6, the guide column 7 is connected to a limiting ring 8, the filter body 2 is sequentially sleeved on the guide column 7, and the two ends of the filter body 2 are respectively abutted against the limiting ring 8 and the clamping ring 6.

[0020] In the above structure, a plurality of ventilation grooves are provided on the clamping ring 6; a plurality of layers of filter bodies 2 are placed in the stepped groove 5; the filter bodies 2 can be quickly and accurately placed in the stepped groove 5 by setting the guide pillars 7, and the relative positions of the filter bodies 2 and the stepped groove 5 can be effectively limited by setting the limiting rings 8.

[0021] In this embodiment, a one-way valve 9 is disposed on the outer wall of the housing body 1 , and the one-way valve 9 is located between the clamp ring 6 and the air outlet 4 .

[0022] By adopting the above structure, the air outlet 4 is blocked and connected to the air inlet 3 with a cloth bag, the air pipe is connected to the one-way valve 9, and the filter body 2 is preliminarily cleaned by backblowing, thereby alleviating the blockage problem of the filter body 2.

[0023] In this embodiment, the air inlet 3 is connected to a conical wind hood 10 , a small port of the conical wind hood 10 is arranged away from the air inlet 3 , and a large port of the conical wind hood 10 is in contact with the filter body 2 .

[0024] By adopting the above structure, the diameter of the air inlet 3 can be reduced by adding the conical wind hood 10, so that the diameter of the air inlet 3 is smaller than the diameter of the air outlet 4, and the air flow rate at the air inlet 3 can be increased, so that the air passes through the filter body 2 faster.

[0025] In this embodiment, a mounting plate 11 is disposed on the outer wall of the housing body 1 , and a mounting groove 12 is formed on the mounting plate 11 .

[0026] With the above structure, the fan can be fixed at the installation position by connecting with the assembly groove 12 through bolts.

[0027] In this embodiment, the assembly plate 11 is symmetrically arranged on the outer wall of the housing body 1 .

[0028] In this embodiment, a tool groove 13 is formed at the end of the limiting ring 8 .

[0029] By adopting the above structure, under the premise of ensuring the limiting of the filter body 2, no nut is added, and the connection between the limiting ring 8 and the guide column 7 can be completed by inserting the hexagonal wrench into the working angle groove.

[0030] In this embodiment, the large port of the conical wind hood 10 is threadedly connected to the air inlet 3 .

[0031] By adopting the above structure, the end of the conical wind hood 10 can press the edge of the filter body 2, and the middle and edge of the filter body 2 are both limited, which can effectively control the relative position of the filter body 2 and the stepped groove 5.

[0032] In this embodiment, a gap is provided between the assembly plate 11 and the housing body 1 .

[0033] The above structure provides a force point, and the hand can be inserted into the gap to facilitate the hand-held movement of the fan.

[0034] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filter fan, comprising a housing body and a filter body, wherein the front and rear ends of the housing body are respectively an air inlet and an air outlet, and the characteristics are: A stepped groove matched with the filter body is provided in the shell body, a clamping ring is provided in the stepped groove, a guide column is provided in the middle of the clamping ring, the guide column is connected to the limiting ring, the filter body is sequentially sleeved on the guide column, and the two ends of the filter body are respectively abutted against the limiting ring and the clamping ring.

2. A filter fan according to claim 1, characterized in that: A one-way valve is disposed on the outer wall of the shell body, and the one-way valve is located between the clamping ring and the air outlet.

3. A filter fan according to claim 1, characterized in that: The air inlet is connected to a conical wind hood, a small port of the conical wind hood is arranged away from the air inlet, and a large port of the conical wind hood is in contact with the filter body.

4. A filter fan according to claim 1, characterized in that: The outer wall of the shell body is provided with a mounting plate, and the mounting plate is provided with a mounting groove.

5. A filter fan according to claim 4, characterized in that: The assembly plate is symmetrically arranged on the outer wall of the shell body.

6. A filter fan according to claim 1, characterized in that: A tool groove is formed at the end of the limiting ring.

7. A filter fan according to claim 3, characterized in that: The large port of the conical wind hood is threadedly connected to the air inlet.

8. A filter fan according to claim 4, characterized in that: A gap is arranged between the assembly plate and the shell body.

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