Oil-free screw compressor

Abstract

This utility model discloses an oil-free screw compressor, comprising a casing, a filter screen disposed on the upper surface of the casing, first locking blocks fixedly connected to both sides of the filter screen, and symmetrically fixed locking plates connected to the upper surface of the casing. The interiors of the first locking blocks and the locking plates are slidably connected. A positioning hole is formed on the upper surface of the locking plate, the lower end of which extends through the upper surface of the first locking blocks to the outside. Rotating components are disposed on both sides of the casing, and sleeves are rotatably connected inside each rotating component. A telescopic rod is slidably connected inside each sleeve, the front end of which extends through the front end of the sleeve to the outside and is fixedly connected to a pad. A knob is disposed on the outside of the sleeve. This structure facilitates filter screen replacement, prevents dust accumulation on the filter screen surface from affecting airflow, and utilizes the telescopic rod and pad to support the casing, maintaining its stability.

Description

Technical Field

[0001] This utility model relates to an oil-free screw compressor. Background Technology

[0002] An air compressor is a device used to compress gas. It is the main component of an air supply system, converting the mechanical energy of a prime mover (usually an electric motor) into gas pressure energy; it is the device that generates compressed air pressure.

[0003] However, existing air compressors only use filters to filter impurities in the air when delivering air. The filters are usually fixed to the top of the casing, making them inconvenient to remove. The filters are also prone to clogging, which affects the air delivery efficiency. Utility Model Content

[0004] The purpose of this invention is to provide an oil-free screw compressor that solves the problem that existing filters are inconvenient to clean and can easily affect air delivery performance.

[0005] To achieve the above objectives, an oil-free screw compressor is provided, including a housing. A filter screen is provided on the upper surface of the housing. First clamping blocks are fixedly connected to both sides of the filter screen. A clamping plate is symmetrically fixedly connected to the upper surface of the housing. The interior of the first clamping blocks is slidably connected to the interior of the clamping plates. A positioning hole is provided on the upper surface of the clamping plate. The lower end of the positioning hole extends through the upper surface of the first clamping blocks to the outside. Rotating components are provided on both sides of the chassis. A sleeve is rotatably connected inside the rotating component. A telescopic rod is slidably connected inside the sleeve. The front end of the telescopic rod passes through the front end of the sleeve and extends to the outside, and is fixedly connected to a pad. A knob is provided on the outside of the sleeve.

[0006] Multiple vertical rods are fixedly connected to the upper surface of the chassis. A limit plate is slidably connected to the inner wall of the vertical rods. A positioning rod is provided on the upper surface of the limit plate, and the front end of the positioning rod extends into the positioning hole.

[0007] A fixed plate is fixedly connected to the inner wall of the vertical rod, and a movable plate is slidably connected to the inner wall of the vertical rod. A first spring is fixedly connected between the movable plate and the fixed plate.

[0008] A movable rod is provided between the limiting plate and the movable plate, and the outside of the movable rod is slidably connected to the middle of the fixed plate.

[0009] A connecting block is rotatably connected to the outside of the rotating component. The rotating component is hexagonal in shape. A second locking block is provided on the outside of the rotating component. A support plate is fixedly connected to the upper end of the second locking block.

[0010] The rotating component is provided with a housing on its outer side, and a mounting plate is slidably connected inside the housing. A connecting rod is fixedly connected between the mounting plate and the support plate.

[0011] A second spring is provided on the upper surface of the mounting plate, and a pull rod is provided on the upper surface of the mounting plate. The pull rod is slidably connected to the middle part of the housing.

[0012] The chassis contains a controller, a motor, a screw compressor, and a circulating cooler, and a fan is installed on the top of the chassis.

[0013] The above-mentioned solution has the following beneficial effects: 1. This utility model utilizes a card plate and a first card block to cooperate in installing a filter screen, and uses a positioning rod and a positioning hole to cooperate in positioning the filter screen. Moreover, the filter screen slides inside the first card block, which facilitates the disassembly and replacement of the first filter screen and avoids the filter screen from being blocked by impurities.

[0014] 2. This utility model utilizes a sleeve and a telescopic rod to support the chassis and keep it stable. Furthermore, the angle of the telescopic rod can be adjusted by using a rotating component that works in conjunction with the sleeve. Attached Figure Description

[0015] Figure 1 This is a side view of an oil-free screw compressor according to the present invention.

[0016] Figure 2 This is a left view of an oil-free screw compressor according to the present invention.

[0017] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle.

[0018] Figure 4 This utility model Figure 2 Enlarged view of point B in the middle.

[0019] Figure 5 This is a three-dimensional view of the filter screen of an oil-free screw compressor according to this utility model.

[0020] Legend: 1. Chassis; 2. Controller; 3. Motor; 4. Screw compressor; 5. Circulating cooler; 6. Filter screen; 7. Knob; 8. Pad; 9. Telescopic rod; 10. Sleeve; 11. Positioning hole; 12. First locking block; 13. Locking plate; 14. Vertical rod; 15. Movable plate; 16. Movable rod; 17. Fixed plate; 18. Limiting plate; 19. Positioning rod; 20. First spring; 21. Rotating component; 22. Mounting plate; 23. Connecting rod; 24. Connecting block; 25. Second locking block; 26. Support plate; 27. Second spring; 28. Pull rod; 29. ​​Housing. Detailed Implementation

[0021] Reference Figure 1-5 This utility model provides an oil-free screw compressor, including a housing 1. A filter screen 6 is provided on the upper surface of the housing 1 for filtering impurities in the air. First locking blocks 12 are fixedly connected to both sides of the filter screen 6. A locking plate 13 is symmetrically fixedly connected to the upper surface of the housing 1 to facilitate the disassembly and replacement of the filter screen 6. The interior of the first locking block 12 is slidably connected to the interior of the locking plate 13. A positioning hole 11 is provided on the upper surface of the locking plate 13. The lower end of the positioning hole 11 passes through the upper surface of the first locking block 12 and extends to the outside. Rotating parts 21 are provided on both sides of the chassis 1 to adjust the angle of the sleeve 10. The sleeve 10 is rotatably connected inside the rotating parts 21. The telescopic rod 9 is slidably connected inside the sleeve 10. The front end of the telescopic rod 9 passes through the front end of the sleeve 10 and extends to the outside, and is fixedly connected to the pad 8. The lower surface of the pad 8 is provided with an anti-slip pad to support the chassis 1 and keep the chassis stable. A knob 7 is provided on the outside of the sleeve 10.

[0022] Multiple vertical rods 14 are fixedly connected to the upper surface of the casing 1. A limit plate 18 is slidably connected to the inner wall of the vertical rods 14. A positioning rod 19 is provided on the upper surface of the limit plate 18. The positioning rod 19 cooperates with the positioning hole 11 to position the filter screen 6 and keep the filter screen 6 stable. The front end of the positioning rod 19 extends into the positioning hole 11. A fixed plate 17 is fixedly connected to the inner wall of the vertical rods 14. A movable plate 15 is slidably connected to the inner wall of the vertical rods 14. A first spring 20 is fixedly connected between the movable plate 15 and the fixed plate 17. Pushing the movable plate 15 can automatically make the positioning rod 19 cooperate with the positioning hole 11. A movable rod 16 is provided between the limit plate 18 and the movable plate 15. The outer side of the movable rod 16 is slidably connected to the middle of the fixed plate 17. A connecting block 24 is rotatably connected to the outer side of the rotating part 21. Part 21 is hexagonal, which facilitates positioning of the rotating part 21. A second locking block 25 is provided on the outside of the rotating part 21. A support plate 26 is fixedly connected to the upper end of the second locking block 25. A housing 29 is provided on the outside of the rotating part 21. An mounting plate 22 is slidably connected inside the housing 29. A connecting rod 23 is fixedly connected between the mounting plate 22 and the support plate 26. A second spring 27 is provided on the upper surface of the mounting plate 22. A pull rod 28 is provided on the upper surface of the mounting plate 22. The pull rod 28 is slidably connected to the middle of the housing 29. The machine box 1 is equipped with a controller 2, a motor 3, a screw compressor 4 and a circulating cooler 5. A fan is provided at the top of the machine box 1. Water cooled by the lubrication and cooling circulation system is introduced into the compression chamber of the screw compressor 4. It is completely oil-free and can produce pure oil-free compressed air.

[0023] When in use, the fan and the circulating cooler 5 work together to deliver air. The air passes through the middle of the filter screen 6. After long-term use, a lot of dust will easily accumulate on the surface of the filter screen 6. Therefore, manually pull the positioning rod 19 to separate the positioning rod 19 from the positioning hole 11, and take out the two first clips 12 inside the filter screen 6 to replace the filter screen 6 and ensure the air delivery effect. Before use, loosen knob 7, adjust the length of telescopic rod 9, use pad 8 to support the device and keep it stable, and pull rod 28 to separate second locking block 25 from connecting block 24. With the cooperation of rotating part 21, the angle of sleeve 10 can be adjusted, thus facilitating support of chassis 1. Loosen rod 28, and under the elastic action of second spring 27, push support plate 26 to move, so that second locking block 25 cooperates with connecting block 24, thereby positioning rotating part 21, keeping sleeve 10 stable, and preventing loosening when supporting chassis 1.

Claims

1. An oil-free screw compressor comprising a casing (1), characterized in that, A filter screen (6) is provided on the upper surface of the chassis (1). A first locking block (12) is fixedly connected to both sides of the filter screen (6). A locking plate (13) is symmetrically fixedly connected to the upper surface of the chassis (1). The interior of the first locking block (12) is slidably connected to the interior of the locking plate (13). A positioning hole (11) is provided on the upper surface of the locking plate (13). The lower end of the positioning hole (11) extends through the upper surface of the first locking block (12) to the outside. Rotating parts (21) are provided on both sides of the chassis (1). A sleeve (10) is rotatably connected inside the rotating part (21). A telescopic rod (9) is slidably connected inside the sleeve (10). The front end of the telescopic rod (9) extends through the front end of the sleeve (10) to the outside and is fixedly connected to a pad (8). A knob (7) is provided on the outside of the sleeve (10).

2. The oil-free screw compressor according to claim 1, characterized in that, Multiple vertical rods (14) are fixedly connected to the upper surface of the chassis (1). A limiting plate (18) is slidably connected to the inner wall of the vertical rod (14). A positioning rod (19) is provided on the upper surface of the limiting plate (18). The front end of the positioning rod (19) extends into the positioning hole (11).

3. An oil-free screw compressor according to claim 2, characterized in that, A fixed plate (17) is fixedly connected to the inner wall of the vertical rod (14), and a movable plate (15) is slidably connected to the inner wall of the vertical rod (14). A first spring (20) is fixedly connected between the movable plate (15) and the fixed plate (17).

4. An oil-free screw compressor according to claim 2, characterized in that, A movable rod (16) is provided between the limiting plate (18) and the movable plate (15), and the movable rod (16) is slidably connected to the middle of the fixed plate (17).

5. An oil-free screw compressor according to claim 1, characterized in that The rotating part (21) is rotatably connected to a connecting block (24) on its outer side. The rotating part (21) is hexagonal in shape. A second locking block (25) is provided on the outside of the rotating part (21). A support plate (26) is fixedly connected to the upper end of the second locking block (25).

6. An oil-free screw compressor according to claim 1, characterized in that The rotating part (21) is provided with a housing (29) on the outside, and a mounting plate (22) is slidably connected inside the housing (29). A connecting rod (23) is fixedly connected between the mounting plate (22) and the support plate (26).

7. An oil-free screw compressor according to claim 6, characterized in that, A second spring (27) is provided on the upper surface of the mounting plate (22), and a pull rod (28) is provided on the upper surface of the mounting plate (22). The pull rod (28) is slidably connected to the middle part of the housing (29).

8. An oil-free screw compressor according to claim 1, characterized in that The chassis (1) is equipped with a controller (2), an electric motor (3), a screw compressor (4) and a circulating cooler (5), and a fan is installed on the top of the chassis (1).

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