Novel filter of oilless air compressor

Abstract

The utility model provides a novel filter of an oilless air compressor, and belongs to the technical field of machinery. The problems that an existing novel filter is large in noise and not ideal in filtering effect are solved. The novel filter of the oilless air compressor comprises a shell formed by fixedly connecting an upper shell and a lower shell, a filtering cavity is formed in the shell, a filtering body is arranged in the filtering cavity, the lower shell is provided with an air inlet part, and the air inlet part is provided with a first air inlet channel vertically arranged and a second air inlet channel horizontally arranged. The upper end of the first air inlet channel is communicated with one end of the second air inlet channel, the other end of the second air inlet channel is communicated with the filtering cavity, the shell is provided with an air outlet cavity and an air outlet, and the air outlet cavity is communicated with the filtering cavity and the air outlet. The novel filter of the oilless air compressor has the advantages of low noise and good filtering effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery and relates to a filter body, in particular to a new filter for an oil-free air compressor. Background Art

[0002] Air compressors are widely used in various industrial applications to provide compressed air to support production and manufacturing processes. In these applications, maintaining the quality of compressed air is critical, and air filters are an important part of ensuring air quality. Current air compressors usually use fixed air filters, and replacing the filter element requires disassembling and reassembling the filter element frame. This process may require professional technicians and is time-consuming. In addition, due to the close connection between the filter element and other parts of the compressor, replacing the filter element may cause the machine to downtime longer, causing unnecessary interruptions to production. Therefore, an air compressor with an air filter element quick replacement structure is designed to change the above technical defects.

[0003] For example, a Chinese patent document discloses an air filter for an air compressor (application number: 201610812686.3), which includes a head, which receives the inflow of compressed air and guides it to the filter body, and discharges the air filtered by the filter body; the filter body is fixedly arranged on the head, and filters foreign matter contained in the provided compressed air; the main body is connected to the head, and discharges condensed water and foreign matter; the filter body includes: a filter component; an upper cap and a lower cap, which are installed by combining the filter component up and down; a connecting rod, which passes through the upper cap and the lower cap and is fixed by connecting bolts; the filter component is composed of a cylindrical body and a plurality of dehumidification protrusions, and the plurality of dehumidification protrusions are formed on the outer peripheral surface of the body. However, the air filter for an air compressor is noisy and the filtering effect is not ideal. Summary of the invention

[0004] The utility model aims to solve the above problems in the prior art and proposes a novel filter for an oil-free air compressor with low noise and good filtering effect.

[0005] The purpose of the utility model can be achieved through the following technical solutions: a new type of filter for an oil-free air compressor, comprising a shell formed by a fixed connection between an upper shell and a lower shell, the shell being provided with a filter chamber, the filter chamber being provided with a filter body, characterized in that the lower shell is provided with an air inlet portion, the air inlet portion is provided with a vertically arranged air inlet channel 1 and a horizontally arranged air inlet channel 2, the upper end of the air inlet channel 1 is connected with one end of the air inlet channel 2, the other end of the air inlet channel 2 is connected with the filter chamber, the shell is provided with an air outlet chamber and an air outlet, the air outlet chamber is connected with the filter chamber and the air outlet.

[0006] The air outlet is arranged downward, and the air outlet is connected with the air inlet of the oil-free air compressor. When working, the air enters through the vertically arranged air inlet channel 1 and enters the filter chamber through the horizontally arranged air inlet channel 2. The air is filtered by the filter body in the filter chamber. The filtered air enters the air outlet chamber and is output through the air outlet. By adopting a maze-like channel, the filtering effect of the filter body is improved, and it has a good noise reduction effect, which improves the comfort of use.

[0007] In the novel filter of the oil-free air compressor, a partition is provided in the housing and the partition separates the filter chamber and the air outlet chamber, and a through-flow channel is provided on the partition. The filter chamber and the air outlet chamber are separated by the partition, so that the filtered air can be fully filtered, which has the advantages of good filtering effect and simple and reliable structure.

[0008] In the novel filter of the oil-free air compressor, the number of the filter chambers is two and they are respectively arranged on both sides of the air inlet.

[0009] In the novel filter of the oil-free air compressor, the edge of the lower shell is provided with a positioning convex body 1 and the positioning convex body 1 is arranged along the edge of the lower shell, and the edge of the upper shell is provided with a positioning groove 1, the positioning groove 1 matches the positioning convex body 1 and the positioning convex body 1 is embedded in the positioning groove 1. The positioning convex body 1 is embedded in the positioning groove 1, so that the upper shell and the lower shell have a good positioning effect and improve the sealing effect.

[0010] In the novel filter of the oil-free air compressor, the lower side of the upper shell is provided with four clamps, the lower shell is provided with slots matching the clamps, and the clamps are clamped in the slots. The clamps are clamped in the slots, thereby improving the connection effect between the upper shell and the lower shell.

[0011] In the novel filter of the oil-free air compressor, the upper edge of the air inlet portion has a protruding positioning convex body 2, the inner end surface of the upper shell is provided with a positioning convex body 3, the lower end of the positioning convex body 3 is provided with a positioning groove 2, the positioning convex body 2 matches the positioning groove 2 and the positioning convex body 2 is embedded in the positioning groove 2, and the positioning convex body 2 and the positioning convex body 3 form the above-mentioned air inlet channel 2. The above-mentioned arrangement enables the upper shell and the lower shell to be firmly connected, and by providing the positioning convex body 3, the strength of the upper shell is improved, thereby improving the service life.

[0012] In the novel filter of the oil-free air compressor, a second filter body is positioned in the air outlet cavity, and the flow channel and the air outlet are respectively located on both sides of the second filter body. The second filter body is arranged in the air outlet cavity to achieve secondary filtration of the air and improve the filtering effect.

[0013] In the novel filter of the oil-free air compressor, the inner side of the upper shell is provided with a connecting protrusion 1, the lower shell is provided with a connecting protrusion 2, the outer end surface of the connecting protrusion 1 is provided with a connecting groove and the connecting protrusion 2 is embedded in the connecting groove. The screw passes through the connecting protrusion 1 and the connecting protrusion 2 to connect the upper shell and the lower shell, which has the advantages of firm connection and easy disassembly.

[0014] Compared with the existing technology, the new filter of this oil-free air compressor has the following advantages:

[0015] 1. The air enters through the vertically arranged air inlet channel 1 and enters the filter chamber through the horizontally arranged air inlet channel 2, and is filtered by the filter body in the filter chamber. By adopting a labyrinth-like channel, the filtering effect of the filter body is improved, and it has a good noise reduction effect and improves the comfort of use;

[0016] 2. The filter chamber and the air outlet chamber are separated by the partition, so that the filtered air can be fully filtered, which has the advantages of good filtering effect and simple and reliable structure;

[0017] 3. The positioning groove 2 of the positioning convex body 3 on the inner end surface of the upper shell is used for the positioning convex body 2 at the upper end of the air inlet part to be embedded, thereby improving the firm connection between the upper shell and the lower shell. By providing the positioning convex body 3, the strength of the upper shell is improved, thereby increasing the service life;

[0018] 4. The card head is connected to the card slot, which improves the connection effect between the upper shell and the lower shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of a new filter of the oil-free air compressor.

[0020] Figure 2 It is a top view schematic diagram of the new filter of the oil-free air compressor.

[0021] Figure 3 yes Figure 2 AA cross-sectional view of .

[0022] Figure 4 yes Figure 2 BB cross-sectional view.

[0023] Figure 5 This is a schematic diagram of the interior of the new filter of this oil-free air compressor.

[0024] Figure 6 It is a cross-sectional schematic diagram of another embodiment of the novel filter.

[0025] In the figure, 1, upper shell; 1a, connecting groove; 1b, clamping head; 1c, connecting protrusion one; 2, lower shell; 2a, clamping groove; 2b, connecting protrusion two; 2c, air outlet cavity; 2d, air outlet; 2e, filter cavity; 3, filter body; 4, air inlet part; 4a, air inlet channel one; 4b, air inlet channel two; 5, partition part; 5a, circulation channel; 6, positioning protrusion one; 7, positioning groove one; 8, positioning protrusion two; 9, positioning protrusion three; 10, positioning groove two; 11, filter body two. DETAILED DESCRIPTION

[0026] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0027] like Figures 1 to 5 As shown, the novel filter of the oil-free air compressor comprises a shell formed by the upper shell 1 and the lower shell 2 being fixedly connected, the shell is provided with a filter chamber 2e, the filter chamber 2e is provided with a filter body 3, the lower shell 2 is provided with an air inlet 4, the air inlet 4 is provided with a vertically arranged air inlet channel 1 4a and a horizontally arranged air inlet channel 2 4b, the upper end of the air inlet channel 1 4a is connected with one end of the air inlet channel 2 4b, the other end of the air inlet channel 2 4b is connected with the filter chamber 2e, the shell is provided with an air outlet chamber 2c and an air outlet 2d, the air outlet chamber 2c is connected with the filter chamber 2e and the air outlet 2d. A partition 5 is provided in the shell and the partition 5 separates the filter chamber 2e and the air outlet chamber 2c, and a through-flow channel 5a is provided on the partition 5. There are two filter chambers 2e and they are respectively arranged on both sides of the air inlet 4.

[0028] The edge of the lower shell 2 is provided with a positioning protrusion 6 and the positioning protrusion 6 is arranged along the edge of the lower shell 2. The edge of the upper shell 1 is provided with a positioning groove 7, and the positioning groove 7 matches the positioning protrusion 6 and the positioning protrusion 6 is embedded in the positioning groove 7, so that the upper shell 1 and the lower shell 2 have a good positioning effect and improve the sealing effect. Four clamping heads 1b are provided on the lower side of the upper shell 1, and the lower shell 2 is provided with a clamping groove 2a matching the clamping head 1b, and the clamping head 1b is clamped in the clamping groove 2a. The clamping head 1b is clamped in the clamping groove 2a, which improves the connection effect between the upper shell 1 and the lower shell 2.

[0029] The upper end edge of the air inlet portion 4 has a protruding positioning convex body 2 8, the inner end surface of the upper shell body 1 is provided with a positioning convex body 3 9, and the lower end of the positioning convex body 3 9 is provided with a positioning groove 2 10, the positioning convex body 2 8 matches the positioning groove 2 10 and the positioning convex body 2 8 is embedded in the positioning groove 2 10, the positioning convex body 2 8 and the positioning convex body 3 9 form the above-mentioned air inlet channel 2 4b, so that the upper shell body 1 and the lower shell body 2 are firmly connected, and by providing the positioning convex body 3 9, the strength of the upper shell body 1 is improved, thereby improving the service life.

[0030] The inner side of the upper shell 1 is provided with a connecting protrusion 1c, the lower shell 2 is provided with a connecting protrusion 2b, the outer end surface of the connecting protrusion 1c is provided with a connecting groove 1a and the connecting protrusion 2b is embedded in the connecting groove 1a.

[0031] During operation, air enters through the vertically arranged air inlet channel 1 4a and enters the filter chamber 2e through the horizontally arranged air inlet channel 2 4b, and is filtered by the filter body 3 in the filter chamber 2e. The filtered air enters the air outlet chamber 2c and is output through the air outlet 2d. By adopting a labyrinth-like channel, the filtering effect of the filter body 3 is improved, and it has a good noise reduction effect and improves the comfort of use. The screw passes through the connecting convex body 1c and the connecting convex body 2b, and the clamp head 1b is clamped in the clamping groove 2a, so that the upper shell 1 and the lower shell 2 are fixedly connected, which improves the connection effect of the upper shell 1 and the lower shell 2, and has the advantages of firm connection and convenient disassembly.

[0032] The filter chamber 2e and the air outlet chamber 2c are separated by the partition 5, so that the filtered air can be fully filtered, which has the advantages of good filtering effect and simple and reliable structure.

[0033] As another way, Figure 6 As shown, a second filter body 11 is positioned in the air outlet cavity 2c, and the flow channel 5a and the air outlet 2d are respectively located on both sides of the second filter body 11, thereby realizing secondary filtration of the air and improving the filtering effect.

[0034] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0035] Although the present invention uses more terms such as upper shell 1, connecting groove 1a, clamp head 1b, connecting convex body 1c, lower shell 2, clamping groove 2a, connecting convex body 2b, air outlet cavity 2c, air outlet 2d, filter cavity 2e, filter body 3, air inlet 4, air inlet channel 1 4a, air inlet channel 2 4b, partition 5, circulation channel 5a, positioning convex body 1 6, positioning groove 1 7, positioning convex body 2 8, positioning convex body 3 9, positioning groove 2 10, filter body 2 11, etc., it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A novel filter for an oil-free air compressor, comprising a housing formed by a top housing (1) and a bottom housing (2) fixedly connected, wherein a filter chamber (2e) is provided on the housing, and a filter body (3) is provided in the filter chamber (2e), wherein: The lower shell (2) is provided with an air inlet portion (4), the air inlet portion (4) is provided with a vertically arranged air inlet channel 1 (4a) and a horizontally arranged air inlet channel 2 (4b), the upper end of the air inlet channel 1 (4a) is connected to one end of the air inlet channel 2 (4b), the other end of the air inlet channel 2 (4b) is connected to the filter chamber (2e), the shell is provided with an air outlet chamber (2c) and an air outlet (2d), the air outlet chamber (2c) is connected to the filter chamber (2e) and the air outlet (2d).

2. The novel filter for oil-free air compressor according to claim 1 is characterized in that: A partition (5) is provided in the shell, and the partition (5) separates the filter cavity (2e) and the air outlet cavity (2c), and a penetrating flow channel (5a) is provided on the partition (5).

3. The novel filter for oil-free air compressor according to claim 1 is characterized in that: The number of the filter chambers (2e) is two and they are respectively arranged on both sides of the air inlet portion (4).

4. The novel filter for oil-free air compressor according to claim 1, 2 or 3, characterized in that: The edge of the lower shell (2) is provided with a positioning protrusion (6) and the positioning protrusion (6) is arranged along the edge of the lower shell (2), and the edge of the upper shell (1) is provided with a positioning groove (7), the positioning groove (7) matches the positioning protrusion (6) and the positioning protrusion (6) is embedded in the positioning groove (7).

5. The novel filter for oil-free air compressor according to claim 1, 2 or 3, characterized in that: The lower side of the upper shell (1) is provided with four clamping heads (1b), the lower shell (2) is provided with a clamping slot (2a) matching the clamping head (1b), and the clamping head (1b) is clamped in the clamping slot (2a).

6. The novel filter for oil-free air compressor according to claim 1, 2 or 3, characterized in that: The upper end edge of the air inlet portion (4) has a protruding positioning convex body 2 (8), the inner end surface of the upper shell body (1) is provided with a positioning convex body 3 (9), the lower end of the positioning convex body 3 (9) is provided with a positioning groove 2 (10), the positioning convex body 2 (8) matches the positioning groove 2 (10) and the positioning convex body 2 (8) is embedded in the positioning groove 2 (10), and the positioning convex body 2 (8) and the positioning convex body 3 (9) form the above-mentioned air inlet channel 2 (4b).

7. The novel filter for oil-free air compressor according to claim 2 is characterized in that: A second filter body (11) is positioned in the air outlet cavity (2c), and the flow channel (5a) and the air outlet (2d) are respectively located on both sides of the second filter body (11).

8. The novel filter for oil-free air compressor according to claim 1, 2 or 3, characterized in that: The inner side of the upper shell (1) is provided with a connecting protrusion 1 (1c), the lower shell (2) is provided with a connecting protrusion 2 (2b), the outer end surface of the connecting protrusion 1 (1c) is provided with a connecting groove (1a), and the connecting protrusion 2 (2b) is embedded in the connecting groove (1a).

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