Novel filter for screw air compressor

Abstract

The utility model discloses a novel filter for a screw air compressor, which relates to the technical field of screw air compressor parts and comprises a filter box, a first support ring is mounted on the inner side of the filter box, a groove is arranged at the top of the inner side of the first support ring, and a rubber ring is mounted on the inner side of the first support ring through the groove. A groove is formed in the top wall of the inner side of the first supporting ring, the first supporting ring on the inner side is fixed through the filter box, stability of the first supporting ring is guaranteed, the groove is formed in the top wall of the inner side of the first supporting ring, the rubber ring on the inner side is fixed through the groove, and therefore the rubber ring on the inner side is fixed through the rubber ring on the inner side. The rubber ring limits the limiting ring on the inner side, a user can conveniently mount, dismount and mount the limiting ring, and the first assembly ring is used for the first-stage filter layer, the second-stage filter layer and the third-stage filter layer at the bottom, so that the user can conveniently dismount and replace the first-stage filter layer, the second-stage filter layer and the third-stage filter layer.

Description

Technical Field

[0001] This utility model relates to the technical field of screw air compressor parts, specifically a new type of filter for screw air compressors. Background Technology

[0002] Screw air compressors are oil-injected single-stage twin-screw compressors, available in both single-screw and twin-screw types. They employ high-efficiency belt drive to rotate the compressor unit, compressing air. Oil injection cools the compressed air within the compressor unit. The air-oil mixture discharged from the compressor unit undergoes coarse and fine separation to remove the oil, ultimately yielding clean compressed air. A cooler is used to cool both the compressed air and the oil.

[0003] Patent document CN214764031U discloses a novel filter for a screw air compressor. The filter includes a filter housing and a detachable top cover mounted on the upper side of the filter housing. The filter housing also has an air outlet and an air inlet extending into the filter housing. A fixing ring and a fixing connector are fixed to one end of the air inlet extending into the filter housing, with the fixing ring located above the fixing connector. A filter element is installed at the air inlet port. A rotating connector is fixed to the outer periphery of the filter element, and the rotating connector is movably connected to the fixing connector. Multiple pull rods movably pass through the fixing ring. A limit block is fixed to one end of each pull rod, and a return spring sleeved on the pull rod is provided between the limit block and the fixing ring.

[0004] However, the internal filter structure of the screw air compressor filter described in the aforementioned publicly available documents is inconvenient for users to disassemble and replace. Utility Model Content

[0005] The purpose of this utility model is to provide a new type of filter for screw air compressors, so as to solve the technical problem mentioned in the background art that the internal filtration structure of the filter for screw air compressors is inconvenient for users to disassemble and replace.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A novel filter for a screw air compressor, comprising: a filter box, a first support ring installed on the inner side of the filter box, a groove provided on the top inner side of the first support ring, a rubber ring installed on the inner side of the first support ring through the groove, a limiting ring installed on the inner side of the rubber ring, a first assembly ring installed on the inner side of the limiting ring, a primary filter layer installed at the bottom of the first assembly ring, a secondary filter layer installed at the bottom of the first assembly ring, a tertiary filter layer installed at the bottom of the first assembly ring, a second assembly ring installed at the bottom of the primary, secondary, and tertiary filter layers, a second support ring installed on the inner side of the filter box, the second support ring being located below the first support ring, a sealing ring installed on the inner side of the second support ring, and the second assembly ring being movably installed on the inner side of the sealing ring.

[0007] Preferably, an output pipe is installed through one side of the inner wall of the filter box. The output pipe is located between the first support ring and the second support ring. A second sealing ring is installed at one end of the output pipe. A second flange is installed on the outside of the output pipe. A second connecting bolt is installed through the inside of the second flange.

[0008] Preferably, a fixing ring is installed on the outside of the filter box, a connecting threaded rod is installed on the top of the fixing ring, a fastening cap is installed on the outside of the connecting threaded rod through the thread, and a handle is installed on the top of the fastening cap.

[0009] Preferably, a top cover is installed on the top of the filter box, a through plate is installed on the outer side of the top cover, a connecting threaded rod passes through the inner side of the through plate, and the outer side of the connecting threaded rod is movably connected to the fastening cap by threads.

[0010] Preferably, a retaining ring is installed at the bottom of the top cover, and a closing ring is installed on the outside of the retaining ring, with the closing ring abutting against the inner top wall of the filter box.

[0011] Preferably, an input pipe is installed on the inner side of the top cover, a first sealing ring is installed at the top of the input pipe, and a first flange is installed on the outer side of the input pipe.

[0012] Preferably, a first connecting bolt is installed through the inner side of the first flange.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model has a groove on the inner top wall of the first support ring, and the filter box is fixed to the inner first support ring to ensure the stability of the first support ring. The groove on the inner top wall of the first support ring is fixed to the inner rubber ring, and the rubber ring limits the inner limiting ring, which makes it convenient for users to install and disassemble the limiting ring and the first assembly ring to the bottom first-stage filter layer, second-stage filter layer and third-stage filter layer, so that users can easily disassemble and replace the first-stage filter layer, second-stage filter layer and third-stage filter layer.

[0015] 2. This utility model has a first-stage filter layer, a second-stage filter layer, and a third-stage filter layer installed. The first assembly ring fixes the bottom of the first-stage filter layer, the second-stage filter layer, and the third-stage filter layer. The bottom of the first-stage filter layer, the second-stage filter layer, and the third-stage filter layer are fixedly connected to the second assembly ring. The first-stage filter layer, the second-stage filter layer, and the third-stage filter layer filter the air, thereby improving the filtration effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the first assembly ring structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the filter box structure of this utility model.

[0020] In the diagram: 1. Filter box; 2. First support ring; 3. Rubber ring; 4. Second support ring; 5. Sealing ring; 6. Limiting ring; 7. First assembly ring; 8. Primary filter layer; 9. Secondary filter layer; 10. Tertiary filter layer; 11. Second assembly ring; 12. Fixing ring; 13. Connecting threaded rod; 14. Top cover; 15. Snap ring; 16. Closing ring; 17. Fastening cap; 18. Handle; 19. Input pipe; 20. First sealing ring; 21. First flange; 22. First connecting bolt; 23. Output pipe; 24. Second sealing ring; 25. Second flange; 26. Second connecting bolt. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are 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, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms installation, setting, connection, etc., should be interpreted broadly. For example, connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 A novel filter for a screw air compressor includes: a filter box 1, a first support ring 2 installed on the inner side of the filter box 1, a groove provided on the top of the inner side of the first support ring 2, a rubber ring 3 installed on the inner side of the first support ring 2 through the groove, a limiting ring 6 installed on the inner side of the rubber ring 3, a first assembly ring 7 installed on the inner side of the limiting ring 6, a primary filter layer 8 installed at the bottom of the first assembly ring 7, a secondary filter layer 9 installed at the bottom of the first assembly ring 7, a tertiary filter layer 10 installed at the bottom of the first assembly ring 7, a second assembly ring 11 installed at the bottom of the primary filter layer 8, the secondary filter layer 9 and the tertiary filter layer 10, a second assembly ring 11 installed on the inner side of the filter box 1, the second support ring 4 being located below the first support ring 2, a sealing ring 5 installed on the inner side of the second support ring 4, and the second assembly ring 11 being movably installed on the inner side of the sealing ring 5;

[0025] The filter box 1 is fixed to the inner first support ring 2 to ensure the stability of the first support ring 2. A groove is formed on the inner top wall of the first support ring 2, which fixes the inner rubber ring 3. The rubber ring 3 limits the inner limiting ring 6, facilitating user installation and removal. The limiting ring 6 and the first assembly ring 7 are installed on the bottom primary filter layer 8, secondary filter layer 9, and tertiary filter layer 10, allowing users to easily disassemble and replace these layers. The limiting ring 6 fixes the inner first assembly ring 7 to ensure its stability. The bottom primary filter layer 8, secondary filter layer 9, and tertiary filter layer 10 are fixed. The bottom of the primary filter layer 8, secondary filter layer 9, and tertiary filter layer 10 are fixedly connected to the second assembly ring 11. The second assembly ring 11 is installed inside the sealing ring 5. The second support ring 4 fixes the inner sealing ring 5 to ensure the stability of the sealing ring 5. The sealing ring 5 limits the inner second assembly ring 11 to ensure the stability of the second assembly ring 11 and to ensure sealing. The primary filter layer 8, secondary filter layer 9, and tertiary filter layer 10 filter the air to improve the filtration effect.

[0026] Please see Figure 1 , Figure 2 and Figure 4 An output pipe 23 is installed through one side of the inner wall of the filter box 1. The output pipe 23 is located between the first support ring 2 and the second support ring 4. A second sealing ring 24 is installed at one end of the output pipe 23. A second flange 25 is installed on the outside of the output pipe 23. A second connecting bolt 26 is installed through the inside of the second flange 25.

[0027] The filter box 1 fixes one side of the output pipe 23 to ensure the stability of the output pipe 23. One end of the output pipe 23 is fixed to the second sealing ring 24, which is made of rubber material. The output pipe 23 is fixed to the outer second flange 25 to ensure the stability of the second flange 25. The inner side of the second flange 25 limits the second connecting bolt 26. The second connecting bolt 26 is connected to the external pipe through threads to ensure that air can be transmitted normally. The output pipe 23 outputs air.

[0028] Please see Figure 1 and Figure 2A fixing ring 12 is installed on the outside of the filter box 1. A connecting threaded rod 13 is installed on the top of the fixing ring 12. A fastening cap 17 is installed on the outside of the connecting threaded rod 13 through a thread. A handle 18 is installed on the top of the fastening cap 17. A top cover 14 is installed on the top of the filter box 1. A through plate is installed on the outside of the top cover 14. The connecting threaded rod 13 passes through the inside of the through plate. The outside of the connecting threaded rod 13 is movably connected to the fastening cap 17 through a thread. A retaining ring 15 is installed at the bottom of the top cover 14. A closing ring 16 is installed on the outside of the retaining ring 15. The closing ring 16 abuts against the inner top wall of the filter box 1. An input pipe 19 is installed on the inside of the top cover 14. A first closing ring 20 is installed at the top of the input pipe 19. A first flange 21 is installed on the outside of the input pipe 19. A first connecting bolt 22 is installed through the inside of the first flange 21.

[0029] The filter box 1 is fixed to the outer fixing ring 12 to ensure the stability of the fixing ring 12. The fixing ring 12 is fixed to the top connecting threaded rod 13 to ensure the stability of the connecting threaded rod 13. The outer side of the connecting threaded rod 13 is movably connected to the fastening cap 17 through threads. The top of the fastening cap 17 is fixedly connected to the handle 18 for easy gripping by the user. The top of the filter box 1 supports the top cover 14. The bottom of the top cover 14 is fixed to the retaining ring 15. The retaining ring 15 is fixed to the outer closing ring 16. The closing ring 16 is locked in the inner top wall of the filter box 1 to ensure sealing. The fastening cap 17 is pressed against the top of the through plate to ensure the stability of the through plate.

[0030] The top cover 14 is fixed to the inner input pipe 19, and the input pipe 19 is fixed to the outer first flange 21 to ensure the stability of the first flange 21. The first flange 21 limits the inner first connecting bolt 22. The input pipe 19 transmits control air to the inside of the filter box 1. The air passes through the inner side of the first-stage filter layer 8, the second-stage filter layer 9 and the third-stage filter layer 10.

[0031] Working principle: The top cover 14 fixes the inner input pipe 19, and the input pipe 19 fixes the outer first flange 21 to ensure the stability of the first flange 21. The first flange 21 limits the inner first connecting bolt 22. The input pipe 19 transmits control air to the inside of the filter box 1. The air passes through the inner side of the first-stage filter layer 8, the second-stage filter layer 9, and the third-stage filter layer 10. The first-stage filter layer 8, the second-stage filter layer 9, and the third-stage filter layer 10 filter the air to improve the filtration effect. The output pipe 23 outputs the air.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A novel filter for a screw air compressor, characterized in that, Includes: a filter box (1), a first support ring (2) installed on the inner side of the filter box (1), a groove provided on the top of the inner side of the first support ring (2), a rubber ring (3) installed on the inner side of the first support ring (2) through the groove, a limiting ring (6) installed on the inner side of the rubber ring (3), a first assembly ring (7) installed on the inner side of the limiting ring (6), a first-stage filter layer (8) installed at the bottom of the first assembly ring (7), a second-stage filter layer (9) installed at the bottom of the first assembly ring (7), a third-stage filter layer (10) installed at the bottom of the first-stage filter layer (8), the second-stage filter layer (9) and the third-stage filter layer (10) installed at the bottom of the first-stage filter layer (8), the second-stage filter layer (9) and the third-stage filter layer (10) installed at the bottom of the first-stage filter layer (8), the second-stage filter layer (9) and the third-stage filter layer (10), a second assembly ring (11) installed on the inner side of the filter box (1), the second support ring (4) located below the first support ring (2), a sealing ring (5) installed on the inner side of the second support ring (4), and the second assembly ring (11) movably installed on the inner side of the sealing ring (5).

2. The novel filter for a screw air compressor according to claim 1, characterized in that: An output pipe (23) is installed through one side of the inner wall of the filter box (1). The output pipe (23) is located between the first support ring (2) and the second support ring (4). A second sealing ring (24) is installed at one end of the output pipe (23). A second flange (25) is installed on the outside of the output pipe (23). A second connecting bolt (26) is installed through the inside of the second flange (25).

3. The novel filter for a screw air compressor according to claim 1, characterized in that: A fixing ring (12) is installed on the outside of the filter box (1). A connecting threaded rod (13) is installed on the top of the fixing ring (12). A fastening cap (17) is installed on the outside of the connecting threaded rod (13) through a threaded movement. A handle (18) is installed on the top of the fastening cap (17).

4. The novel filter for a screw air compressor according to claim 1, characterized in that: A top cover (14) is installed on the top of the filter box (1). A through plate is installed on the outside of the top cover (14). A connecting threaded rod (13) passes through the inside of the through plate. The outside of the connecting threaded rod (13) is movably connected to the fastening cap (17) by threads.

5. A novel filter for a screw air compressor according to claim 4, characterized in that: A retaining ring (15) is installed at the bottom of the top cover (14), and a closing ring (16) is installed on the outside of the retaining ring (15). The closing ring (16) abuts against the inner top wall of the filter box (1).

6. A novel filter for a screw air compressor according to claim 4, characterized in that: An input pipe (19) is installed on the inner side of the top cover (14), a first sealing ring (20) is installed at the top of the input pipe (19), and a first flange (21) is installed on the outer side of the input pipe (19).

7. A novel filter for a screw air compressor according to claim 6, characterized in that: The first connecting bolt (22) is installed through the inner side of the first flange (21).

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