Screw air compressor capable of exhausting stably
By installing a multi-layer filter structure and a brush device inside the screw air compressor's air intake box, the problem of wear and tear on the equipment caused by dust and impurities is solved, achieving stable exhaust and convenient maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-27
- Publication Date
- 2026-03-06
AI Technical Summary
In severe weather conditions, dust and impurities in the air are easily dispersed, causing wear on the screw air compressor rotor, bearings, and seals, affecting the stable exhaust of the equipment.
A first and second filter screen are installed inside the intake box of the screw air compressor. Combined with bristles and inclined plates, they are used to intercept and partition dust and impurities. The filter screens are easy to clean and replace through limit blocks and spring structure.
It effectively reduces the impact of dust and impurities on the equipment, improves the stability of equipment exhaust, and reduces maintenance frequency and failure probability.
Smart Images

Figure CN223975247U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of screw air compressor technology, specifically a screw air compressor with stable exhaust. Background Technology
[0002] A screw air compressor is a positive displacement compressor that compresses gas by rotating a pair of meshing screws (male and female rotors) in a sealed cavity. It can be divided into three types: single screw, twin screw, and multi-stage screw. The design of twin screw air compressors is more reasonable and advanced than that of single screw air compressors.
[0003] In actual use, the quality of the outside air is difficult to control. When encountering severe weather, a large amount of dust and impurities in the air are blown up and scattered in the air. Dust will aggravate the wear of rotors, bearings and seals, which will affect the exhaust volume of the equipment and thus affect the stable exhaust of the equipment.
[0004] Therefore, this utility model provides a screw air compressor with stable exhaust to solve the above problems. Utility Model Content
[0005] This invention provides a screw air compressor with stable exhaust, aiming to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] As a preferred technical solution of this application, it includes a screw air compressor body, an air intake box installed on the side wall of the screw air compressor body, a sealing baffle slidably contacting the inner side wall of the air intake box, a limiting post fixedly connected to the top of the outer side wall of the sealing baffle, a first filter screen fixedly connected to the bottom of the outer side wall of the sealing baffle, a sealing plate fixedly connected to the bottom of the inner side wall of the air intake box, a pair of fixing blocks fixedly connected to the top of the outer side wall of the screw air compressor body, a first connecting post slidably connected to the inner side wall of the fixing blocks, a limiting block fixedly connected to one end of the first connecting post, a pull ring fixedly connected to the other end, the limiting block contacting the limiting post, a first spring fixedly connected to the side wall of the limiting block, and a fixing block fixedly connected to one end of the first spring.
[0008] As a preferred technical solution of this application, a second filter screen is fixedly connected to the inner wall of the air intake box. The second filter screen is inclined. A connecting strip is slidably connected to the inner wall of the air intake box. A brush plate is fixedly connected to one end of the connecting strip, and a contact plate is fixedly connected to the other end. A plurality of bristles are fixedly connected to the bottom of the outer wall of the brush plate, and the bristles are in contact with the second filter screen.
[0009] As a preferred technical solution of this application, a first limiting strip is fixedly connected to the side wall of the air intake box, a first limiting plate is fixedly connected to the outer wall of the first limiting strip, a collection box is slidably contacted on the outer wall of the first limiting strip, and an inclined plate is fixedly connected to the side wall of the air intake box.
[0010] As a preferred technical solution of this application, a plurality of second springs are fixedly connected to the bottom of the inner sidewall of the air intake box, a connecting plate is fixedly connected to the top of the outer sidewall of the second springs, the connecting plate is in contact with the first filter screen, a pair of second limiting plates are fixedly connected to the bottom of the inner sidewall of the air intake box, the second limiting plates are in contact with the connecting plate, and the connecting plate is in contact with the sealing plate.
[0011] As a preferred technical solution of this application, the inner sidewall of the limiting block is rotatably connected to a second connecting post, and a pair of rollers are fixedly connected to the outer sidewall of the second connecting post, the rollers being in contact with the air intake box.
[0012] As a preferred technical solution of this application, two pairs of second limiting strips are fixedly connected to the inner wall of the air intake box. The second limiting strips are disposed on both sides of the sealing baffle and are in contact with the sealing baffle.
[0013] As a preferred technical solution of this application, a number of baffles are fixedly connected to the outer wall of the air intake box.
[0014] The first filter allows staff to adjust the equipment according to the environment, intercepting dust and impurities in the air, reducing the impact of air impurities on the equipment's exhaust, and increasing the stability of the equipment's exhaust.
[0015] The second filter and brush bristles allow the equipment to intercept large particles of impurities in separate sections, making it easier for staff to use and maintain the equipment and reducing the frequency of cleaning the first filter. Attached Figure Description
[0016] Figure 1 A schematic diagram of the overall structure of a screw air compressor with stable exhaust;
[0017] Figure 2 This is a schematic diagram of the intake box in a screw air compressor with stable exhaust.
[0018] Figure 3 A schematic diagram of the structure of the second filter screen in a screw air compressor with stable exhaust;
[0019] Figure 4 A schematic diagram of the limiting block in a screw air compressor for stable exhaust;
[0020] Figure 5 A schematic diagram of the structure of the second spring in a screw air compressor for stable exhaust;
[0021] Figure 6 This is a schematic diagram of the collection box in a screw air compressor for stable exhaust.
[0022] In the picture:
[0023] 1. Screw air compressor body; 11. Air inlet box; 12. Sealing baffle; 13. Limiting post; 14. First filter screen; 15. Sealing plate; 16. Fixing block; 17. First connecting post; 18. Limiting block; 19. First spring; 10. Pull ring; 2. Second filter screen; 21. Connecting strip; 22. Brush plate; 23. Brush bristles; 24. Contact plate; 3. First limiting strip; 31. First limiting plate; 32. Collection box; 33. Inclined plate; 4. Second spring; 41. Connecting plate; 42. Second limiting plate; 5. Second connecting post; 51. Roller; 6. Second limiting strip; 7. Stop bar. Detailed Implementation
[0024] 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.
[0025] This utility model provides a screw air compressor with stable exhaust, such as Figures 1-6 As shown, the compressor includes a screw air compressor body 1. An air inlet box 11 is installed on the side wall of the screw air compressor body 1. A sealing baffle 12 is slidably contacted on the inner side wall of the air inlet box 11. A limiting post 13 is fixedly connected to the top of the outer side wall of the sealing baffle 12. A first filter screen 14 is fixedly connected to the bottom of the outer side wall of the sealing baffle 12. A sealing plate 15 is fixedly connected to the bottom of the inner side wall of the air inlet box 11. A pair of fixing blocks 16 are fixedly connected to the top of the outer side wall of the screw air compressor body 1. A first connecting post 17 is slidably connected to the inner side wall of the fixing block 16. A limiting block 18 is fixedly connected to one end of the first connecting post 17, and a pull ring 10 is fixedly connected to the other end. The limiting block 18 contacts the limiting post 13. A first spring 19 is fixedly connected to the side wall of the limiting block 18. One end of the first spring 19 is fixedly connected to the fixing block 16.
[0026] When the equipment is working, the sealing baffle 12 slides along the air inlet box 11, and the limiting post 13 squeezes the limiting block 18, causing the limiting block 18 to move to one side until the sealing baffle 12 moves to the designated position. At this time, the first spring 19 pushes the limiting block 18 to fix the limiting post 13. When the screw air compressor body 1 is started, air flows from the air inlet box 11 into the screw air compressor body 1. The air is blocked by the sealing baffle 12 and flows into the screw air compressor body 1 after passing through the first filter screen 14. 4. It will intercept dust and impurities in the air. When the equipment is used for a long time and the first filter screen 14 needs to be cleaned, pull the pull rings 10 on both sides outward. When the limit block 18 is disengaged from the limit post 13, the staff can take out the limit post 13 and clean the first filter screen 14. Through the first filter screen 14, the staff can adjust the equipment according to the usage environment, intercept dust and impurities in the air, reduce the impact of impurities in the air on the equipment exhaust, and increase the stability of the equipment exhaust.
[0027] like Figure 2 and Figure 3 As shown, a second filter screen 2 is fixedly connected to the inner wall of the air intake box 11. The second filter screen 2 is inclined. A connecting strip 21 is slidably connected to the inner wall of the air intake box 11. A brush plate 22 is fixedly connected to one end of the connecting strip 21, and a contact plate 24 is fixedly connected to the other end. Several bristles 23 are fixedly connected to the bottom of the outer wall of the brush plate 22, and the bristles 23 are in contact with the second filter screen 2.
[0028] When the equipment is working, the air will intercept large particles of impurities. Pulling the contact plate 24 will move the connecting bar 21. At this time, the bristles 23 will rub against the second filter screen 2, and the bristles 23 will sweep away the large particles above the second filter screen 2. The large particles will flow out of the equipment along the tilt angle of the second filter screen 2. Through the setting of the second filter screen 2 and the bristles 23, the equipment can intercept large particles of impurities in sections, which makes it easier for staff to use and maintain the equipment and reduces the frequency of staff cleaning the first filter screen 14.
[0029] like Figure 2 and Figure 6 As shown, a first limiting strip 3 is fixedly connected to the side wall of the air intake box 11, a first limiting plate 31 is fixedly connected to the outer wall of the first limiting strip 3, a collection box 32 is slidably contacted to the outer wall of the first limiting strip 3, and an inclined plate 33 is fixedly connected to the side wall of the air intake box 11.
[0030] When the equipment is working, the collection box 32 slides along the first limit bar 3. When the collection box 32 contacts the first limit plate 31, large particles of impurities inside the air intake box 11 will flow into the collection box 32 through the inclined plate 33. The collection box 32 and the inclined plate 33 make it easy for staff to collect large particles of impurities, which will facilitate their subsequent processing and reduce the situation of impurities scattering everywhere.
[0031] like Figure 3 and Figure 5 As shown, several second springs 4 are fixed to the bottom of the inner wall of the air intake box 11, and a connecting plate 41 is fixed to the top of the outer wall of the second springs 4. The connecting plate 41 is in contact with the first filter screen 14. A pair of second limiting plates 42 are fixed to the bottom of the inner wall of the air intake box 11. The second limiting plates 42 are in contact with the connecting plate 41, and the connecting plate 41 is in contact with the sealing plate 15.
[0032] When the equipment is in operation, when the operator installs the first filter screen 14, the first filter screen 14 will squeeze the connecting plate 41, which will cause the second spring 4 to be compressed and contract. The connecting plate 41 will move horizontally under the restriction of the second limiting plate 42 and the sealing plate 15. When the operator needs to remove the first filter screen 14, the operator will disengage the limiting block 18 from the limiting post 13. At this time, the second spring 4 will reset and the second spring 4 will bounce the first filter screen 14 upward. The second spring 4 and the connecting plate 41 make it easy for the operator to disassemble the first filter screen 14 and use the equipment.
[0033] like Figure 4 As shown, a second connecting post 5 is rotatably connected to the inner side wall of the limiting block 18, and a pair of rollers 51 are fixed to the outer side wall of the second connecting post 5. The rollers 51 are in contact with the air intake box 11.
[0034] When the equipment is working, the limit block 18 will move and the roller 51 will roll. The roller 51 will first contact the air inlet box 11. By setting the roller 51, the stability of the limit block 18 during movement is increased, and the possibility of equipment failure due to bending of the limit block 18 during long-term operation is reduced.
[0035] like Figure 3 As shown, two pairs of second limiting strips 6 are fixed to the inner wall of the air intake box 11. The second limiting strips 6 are arranged on both sides of the sealing baffle 12 and are in contact with the sealing baffle 12.
[0036] When the equipment is working, the sealing baffle 12 will slide under the restriction of the second limit bar 6. The second limit bar 6 increases the stability of the sealing baffle 12 during movement and reduces the probability of the sealing baffle 12 tilting during movement.
[0037] like Figure 2As shown, several baffles 7 are fixed to the outer wall of the air intake box 11.
[0038] When the equipment is working, air will enter the air intake box 11 through the baffle 7. The baffle 7 can intercept rainwater from the outside. By setting the baffle 7, the probability of the air intake box 11 being corroded by rainwater and other substances is reduced.
[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A screw air compressor with stable exhaust, comprising a screw air compressor body (1), characterized in that: The screw air compressor body (1) side wall is provided with an air inlet tank (11), the air inlet tank (11) inner side wall is in sliding contact with a sealing baffle (12), the sealing baffle (12) outer side wall top is fixedly connected with a limiting column (13), the sealing baffle (12) outer side wall bottom is fixedly connected with a first filter screen (14), the air inlet tank (11) inner side wall bottom is fixedly connected with a sealing plate (15), the screw air compressor body (1) outer side wall top is fixedly connected with a pair of fixed blocks (16), the fixed block (16) inner side wall is in sliding connection with a first connecting column (17), the first connecting column (17) one end is fixedly connected with a limiting block (18), the other end is fixedly connected with a pull ring (10), the limiting block (18) is in contact with the limiting column (13), the limiting block (18) side wall is fixedly connected with a first spring (19), the first spring (19) one end is fixedly connected with a fixed block (16).
2. A screw air compressor with stable exhaust according to claim 1, characterized in that: The air inlet tank (11) inner side wall is fixedly connected with a second filter screen (2), the second filter screen (2) is inclined, the air inlet tank (11) inner side wall is in sliding connection with a connecting strip (21), the connecting strip (21) one end is fixedly connected with a brush plate (22), the other end is fixedly connected with a contact plate (24), the brush plate (22) outer side wall bottom is fixedly connected with a plurality of bristles (23), the bristles (23) are in contact with the second filter screen (2).
3. A screw air compressor with stable exhaust according to claim 1, characterized in that: The air inlet tank (11) side wall is fixedly connected with a first limiting strip (3), the first limiting strip (3) outer side wall is fixedly connected with a first limiting plate (31), the first limiting strip (3) outer side wall is in sliding contact with a collection box (32), the air inlet tank (11) side wall is fixedly connected with an inclined plate (33).
4. A screw air compressor with stable exhaust according to claim 1, characterized in that: The air inlet tank (11) inner side wall bottom is fixedly connected with a plurality of second springs (4), the second spring (4) outer side wall top is fixedly connected with a connecting plate (41), the connecting plate (41) is in contact with the first filter screen (14), the air inlet tank (11) inner side wall bottom is fixedly connected with a pair of second limiting plates (42), the second limiting plate (42) is in contact with the connecting plate (41), the connecting plate (41) is in contact with the sealing plate (15).
5. A screw air compressor with stable exhaust according to claim 1, characterized in that: The limiting block (18) inner side wall is rotatably connected with a second connecting column (5), the second connecting column (5) outer side wall is fixedly connected with a pair of rollers (51), the rollers (51) are in contact with the air inlet tank (11).
6. A stable exhaust screw air compressor as claimed in claim 1, wherein: The air inlet tank (11) inner side wall is fixedly connected with two pairs of second limiting strips (6), the second limiting strips (6) are arranged on both sides of the sealing baffle (12), and the second limiting strips (6) are in contact with the sealing baffle (12).
7. A stable exhaust screw air compressor as claimed in claim 1, wherein: The air inlet tank (11) outer side wall is fixedly connected with a plurality of blocking strips (7).