Air inlet air filtering device of air compressor

Abstract

The air inlet air filtering device of the air compressor comprises an air inlet box, three vertical guide grooves are welded to an inner cavity of the air inlet box, filter screen supporting frames are connected to inner cavities of the three vertical guide grooves in a sliding mode, the left side and the right side of each filter screen supporting frame are each provided with two circular grooves, and the two circular grooves are connected with the filter screen supporting frames in a sliding mode. A circular groove is formed in the middle of the filter screen supporting frame, a hollow pipe is fixedly connected to an inner cavity of the circular groove, a limiting circular ring is connected to an inner cavity of the hollow pipe in a sliding mode, and a spring is welded between the limiting circular ring and the inner wall of the hollow pipe. And the filter screen supporting frame is detached out of the inner cavity of the air inlet box, so that the filter screen in the filter device can be flexibly detached and replaced after the filter screen is full of dust, the overall filtering effect of the filter device is ensured, the quality of compressed air is improved, and the effectiveness of the compressed air in various applications is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of air compressors, in particular to an air inlet air filter device of an air compressor. Background Art

[0002] An air compressor (abbreviated as air compressor) is a device used to compress air. Its main function is to convert mechanical energy into gas pressure energy to provide power for various pneumatic tools and systems. Air compressors have a wide range of applications, including but not limited to refrigerators, air conditioners, refrigeration, oil fields, natural gas filling stations, rock drills, pneumatic tools and other industries.

[0003] A filter device needs to be installed at the air inlet of the air compressor to prevent dust and impurities in the air from entering the compressor and causing wear of internal parts. In order to make the filter in the filter device flexibly replaceable after the dust is full, so as to ensure the overall filtering effect of the filter device, thereby improving the quality of the compressed air and ensuring its effectiveness in various applications, an air inlet filter device for the air compressor is designed. The device can filter the air sucked into the air compressor layer by layer through the combination of coarse-pore filter, fine-pore filter and activated carbon filter. At the same time, the combination of circular groove, spring and ball can facilitate the flexible replacement of the filter support frame, thereby ensuring the overall filtering effect of the filter device, improving the quality of the compressed air and ensuring its effectiveness in various applications. Utility Model Content

[0004] The purpose of the utility model is to provide an air inlet filter device for an air compressor, which has the function of allowing the filter screen in the filter device to be flexibly removed and replaced after it is full of dust, so as to ensure the overall filtering effect of the filter device, thereby improving the quality of compressed air and ensuring its effectiveness in various applications, so as to solve the above-mentioned background technical problems.

[0005] The technical solution of the utility model for solving the above-mentioned technical problems is as follows: an air inlet filter device for an air compressor, which includes an air inlet box: three vertical guide grooves are welded to the inner cavity of the air inlet box, and the inner cavities of the three vertical guide grooves are slidably connected to a filter support frame, and two circular grooves are provided on the left and right sides of the filter support frame, and the inner cavity of the circular groove is fixedly connected to a hollow tube, and the inner cavity of the hollow tube is slidably connected to a limiting ring, a spring is welded between the limiting ring and the inner wall of the hollow tube, and the inner cavity of the limiting ring is rotatably connected to a ball.

[0006] Preferably, the vertical guide grooves are arranged front to back, the inner cavity of the air intake box is provided with a plurality of circular holes, the circular holes are located in the inner cavity of the vertical guide grooves, and the surface of the ball is rollingly connected to the inner cavity of the circular holes.

[0007] Preferably, the filter support frame is provided with limiting grooves on both the front and rear sides, the inner wall of the vertical guide groove is fixedly connected to a limiting strip, and the surface of the limiting strip is slidably connected to the inner cavity of the limiting groove.

[0008] Preferably, the inner cavity of the filter support frame is respectively installed with a coarse-pore filter, a fine-pore filter, and an activated carbon filter, and the tops of the three filter support frames are fixedly connected with a lever handle.

[0009] Preferably, the front side of the air intake box is connected to an air intake connecting pipe, and the rear side of the air intake box is connected to an air outlet connecting pipe, and the opposite ends of the air intake connecting pipe and the air outlet connecting pipe are fixedly connected to flange rings.

[0010] Preferably, the bottom of the air intake box is fixedly connected with an expansion pad by bolts, and the expansion pad is a rubber expansion pad.

[0011] The beneficial effects of the utility model are:

[0012] 1. The utility model pulls the lever handle to drive the filter support frame to slide upward, thereby separating the surface of the ball from the inner cavity of the circular hole, and then removing the filter support frame from the inner cavity of the air inlet box. This can achieve the purpose of making the filter in the filter device flexibly removable and replaceable after it is full of dust, thereby ensuring the overall filtering effect of the filter device, thereby improving the quality of compressed air and ensuring its effectiveness in various applications;

[0013] 2. The utility model uses the limiting groove and the limiting strip in conjunction with each other, so that the filter support frame can exert a vertical guiding force on the filter support frame during its sliding process in the inner cavity of the vertical guide groove, so that the surface of the ball can accurately fall into the inner cavity of the circular hole;

[0014] 3. The utility model can provide a buffering protection between the air intake box and the ground by setting the expanded pad, and at the same time increase the contact area between the air intake box and the ground, so that the air intake box can be more stable after being placed on the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] in:

[0016] Figure 1 This is a schematic front view of an embodiment of the utility model;

[0017] Figure 2 This is a front view schematic diagram of an embodiment of the utility model;

[0018] Figure 3 This is a schematic diagram of the main view splitting of an embodiment of the utility model;

[0019] Figure 4This is a schematic top cross-sectional view of an air intake box according to an embodiment of the present invention;

[0020] Figure 5 This is an embodiment of the utility model Figure 3 A partial enlarged view of point A.

[0021] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0022] 1. Air intake box, 2. Vertical guide groove, 3. Filter support frame, 4. Circular groove, 5. Hollow tube, 6. Limiting ring, 7. Spring, 8. Ball, 9. Limiting groove, 10. Limiting bar, 11. Coarse-pore filter, 12. Fine-pore filter, 13. Activated carbon filter, 14. Leverage handle, 15. Inlet connecting pipe, 16. Outlet connecting pipe, 17. Flange ring, 18. Expanding pad. DETAILED DESCRIPTION

[0023] Hereinafter, embodiments of the air inlet filter device of an air compressor according to the present invention will be described with reference to the accompanying drawings. Example 1

[0024] Figure 1-5 The air inlet filter device of an air compressor of an embodiment of the present invention is shown, which includes: an air intake box 1: the inner cavity of the air intake box 1 is welded with three vertical guide grooves 2, the inner cavities of the three vertical guide grooves 2 are slidably connected to the filter support frame 3, and the left and right sides of the filter support frame 3 are provided with two circular grooves 4, the inner cavity of the circular groove 4 is fixedly connected to a hollow tube 5, the inner cavity of the hollow tube 5 is slidably connected to a limiting ring 6, a spring 7 is welded between the limiting ring 6 and the inner wall of the hollow tube 5, and the inner cavity of the limiting ring 6 is rotatably connected to a ball 8, the three vertical guide grooves 2 are arranged front to back, and the inner cavity of the air intake box 1 is provided with a plurality of circular holes, which are located at the vertical guide grooves. Toward the inner cavity of the groove 2, the surface of the ball 8 is rollingly connected to the inner cavity of the circular hole, and limiting grooves 9 are provided on the front and rear sides of the filter support frame 3. The inner wall of the vertical guide groove 2 is fixedly connected to the limiting strip 10, and the surface of the limiting strip 10 is slidingly connected to the inner cavity of the limiting groove 9. Through the coordinated use of the limiting groove 9 and the limiting strip 10, the filter support frame 3 can apply a vertical guiding force to the filter support frame 3 during the sliding process of the inner cavity of the vertical guide groove 2, so that the surface of the ball 8 can accurately fall into the inner cavity of the circular hole. The inner cavities of the three filter support frames 3 are respectively installed with a coarse-pore filter 11, a fine-pore filter 12, and an activated carbon filter 13. Example 2

[0025] Figure 1-5The air inlet filter device of an air compressor of an embodiment of the present invention is shown, which includes: an air inlet box 1: the inner cavity of the air inlet box 1 is welded with three vertical guide grooves 2, the inner cavities of the three vertical guide grooves 2 are slidably connected to the filter support frame 3, the left and right sides of the filter support frame 3 are provided with two circular grooves 4, the inner cavity of the circular groove 4 is fixedly connected to a hollow tube 5, the inner cavity of the hollow tube 5 is slidably connected to a limiting ring 6, a spring 7 is welded between the limiting ring 6 and the inner wall of the hollow tube 5, the inner cavity of the limiting ring 6 is rotatably connected to a ball 8, the tops of the three filter support frames 3 are fixedly connected to With the help of handle 14, the front side of the air intake box 1 is connected with an air intake connecting pipe 15, and the rear side of the air intake box 1 is connected with an air outlet connecting pipe 16. The opposite ends of the air intake connecting pipe 15 and the air outlet connecting pipe 16 are fixedly connected with flange rings 17. The bottom of the air intake box 1 is fixedly connected with an expanded pad 18 by bolts. The expanded pad 18 is a rubber expanded pad. Through the setting of the expanded pad 18, a buffering protection force can be obtained between the air intake box 1 and the ground, and the contact area between the air intake box 1 and the ground can be increased, which can make the air intake box 1 more stable after being placed on the ground.

[0026] Working principle: When the present invention is used, the user inserts the filter support frame 3 into the inner cavity of the air intake box 1 from top to bottom, and then the left and right sides of the filter support frame 3 are both in the inner cavity of the vertical guide groove 2, so that the filter support frame 3 obtains a vertical guiding force. At the same time, during the sliding process of the filter support frame 3, the ball 8 is supported by the limiting ring 6 and the spring 7, and its surface rolls close to the inner wall of the air intake box 1. When the position of the ball 8 is parallel to the position of the circular hole, the rebound force of the spring 7 pushes the ball 8 to fall into the inner cavity of the circular hole, and then the installation of the filter support frame 3 is completed. , and then the coarse-pore filter 11, the fine-pore filter 12 and the activated carbon filter 13 fall into the inner cavity of the air intake box 1, and filter the hollow layer by layer. When the filter in the filter support frame 3 needs to be replaced, pull the lever handle 14 to drive the filter support frame 3 to slide upward, and then make the surface of the ball 8 separate from the inner cavity of the circular hole, and then remove the filter support frame 3 from the inner cavity of the air intake box 1, so that the filter in the filter device can be flexibly replaced after it is full of dust, so as to ensure the overall filtering effect of the filter device, thereby improving the quality of compressed air and ensuring its effectiveness in various applications.

[0027] To sum up: the air inlet filter device of the air compressor drives the filter support frame 3 to slide upward by pulling the lever handle 14, thereby separating the surface of the ball 8 from the inner cavity of the circular hole, and then removing the filter support frame 3 from the inner cavity of the air inlet box 1, so that the filter in the filter device can be flexibly replaced after being full of dust, so as to ensure the overall filtering effect of the filter device, thereby improving the quality of compressed air and ensuring its effectiveness in various applications.

Claims

1. An air inlet filter device for an air compressor, characterized in that: The invention comprises an air intake box (1): the inner cavity of the air intake box (1) is welded with three vertical guide grooves (2), the inner cavities of the three vertical guide grooves (2) are all slidably connected to a filter support frame (3), the left and right sides of the filter support frame (3) are provided with two circular grooves (4), the inner cavity of the circular groove (4) is fixedly connected to a hollow tube (5), the inner cavity of the hollow tube (5) is slidably connected to a limiting ring (6), a spring (7) is welded between the limiting ring (6) and the inner wall of the hollow tube (5), and the inner cavity of the limiting ring (6) is rotatably connected to a ball (8).

2. The air inlet filter device of an air compressor according to claim 1, characterized in that: The three vertical guide grooves (2) are arranged in front and back, and the inner cavity of the air intake box (1) is provided with a plurality of circular holes, the circular holes are located in the inner cavity of the vertical guide grooves (2), and the surface of the ball (8) is rollingly connected to the inner cavity of the circular holes.

3. The air inlet filter device of an air compressor according to claim 2, characterized in that: Limiting grooves (9) are provided on both the front and rear sides of the filter support frame (3); the inner wall of the vertical guide groove (2) is fixedly connected to a limiting strip (10); and the surface of the limiting strip (10) is slidably connected to the inner cavity of the limiting groove (9).

4. The air inlet filter device of an air compressor according to claim 3, characterized in that: The inner cavities of the three filter support frames (3) are respectively installed with a coarse-pore filter (11), a fine-pore filter (12), and an activated carbon filter (13), and the tops of the three filter support frames (3) are fixedly connected with a lever handle (14).

5. The air inlet filter device of an air compressor according to claim 4, characterized in that: The front side of the air intake box (1) is connected to an air intake connecting pipe (15), and the rear side of the air intake box (1) is connected to an air outlet connecting pipe (16). The opposite ends of the air intake connecting pipe (15) and the air outlet connecting pipe (16) are fixedly connected to flange rings (17).

6. The air inlet filter device of an air compressor according to claim 5, characterized in that: The bottom of the air intake box (1) is fixedly connected to a surface expansion pad (18) via bolts, and the surface expansion pad (18) is a rubber surface expansion pad.

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