A screw air compressor filter screen

Abstract

The utility model discloses a screw air compressor filter screen belongs to air compressor filter screen technical field, including the connecting shell, the top and bottom of connecting shell all are established the connecting groove, the inside plug connection of connecting shell has the filter box, the bottom fixedly connected of connecting shell has the installation shell, the inside slide connection of installation shell has the limit block, the bottom fixedly connected of limit block has the first spring, the bottom fixedly connected of first spring is in the bottom inner wall of installation shell, one side inner wall fixedly connected of connecting shell has the slide cylinder, the inside slide connection of slide cylinder has the slide column, one end of slide column extends to the outside of slide cylinder, and fixedly connected with the push board, through the cooperation of above each device, after the staff down pull rod drive limit block and contract in the inside of installation shell, the second spring of losing extrusion force will release pressure, and can move through the push board and push the filter box, thereby facilitating the staff and take out the filter box.

Description

Technical Field

[0001] This utility model relates to the field of air compressor filter technology, specifically a screw air compressor filter. Background Technology

[0002] Industrial screw air compressors are suitable for various industrial applications due to their low noise and low vibration. However, air compressors require a large amount of air to enter during operation. Therefore, in harsh working environments such as foundries, woodworking factories, and cement plants, a large amount of dust particles are drawn into the compressor, which seriously affects the cleanliness of the compressor's interior and reduces its service life.

[0003] An investigation revealed that a utility model patent (publication number: CN221220806U) discloses a screw air compressor filter screen, comprising a primary filter box and a secondary filter cartridge along the airflow direction, wherein the primary filter box is located below the secondary filter cartridge; the primary filter box includes a housing and a box body, the box body being hollow, with an air inlet at the lower end and an air outlet at the upper end; a filter screen is provided in the middle of the box body, and the two ends of the filter screen are fixedly connected to the traction shaft, the traction shaft being hinged to the inner wall of the box body, and a power motor is connected to the outer side of one of the traction shafts, under the action of the power motor, the filter screen is wound around the traction shaft and rotates.

[0004] In the aforementioned patent, the box body is provided with a connecting hole that matches the top rod on the box body. The top rod is equipped with a spring. When the box body is fully inserted into the box body, the spring will push the top rod to insert into the connecting hole, thereby effectively improving the stability of the box body. However, there are multiple top rods. When replacing the filter screen, all the top rods need to be pressed at the same time to remove the box body from the inside of the box body, which is inconvenient to operate.

[0005] Therefore, this utility model provides a screw air compressor filter to solve the above problems. Utility Model Content

[0006] This invention provides a screw air compressor filter screen, which aims to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a screw air compressor filter screen, comprising a connecting shell, wherein connecting grooves are provided at the top and bottom of the connecting shell, a filter box is inserted into the inside of the connecting shell, an mounting shell is fixedly connected to the bottom of the connecting shell, a limiting block is slidably connected inside the mounting shell, a first spring is fixedly connected to the bottom end of the limiting block, the bottom end of the first spring is fixedly connected to the bottom inner wall of the mounting shell, a sliding cylinder is fixedly connected to one side inner wall of the connecting shell, a sliding column is slidably connected inside the sliding cylinder, one end of the sliding column extends to the outside of the sliding cylinder and is fixedly connected to a push plate, a second spring is sleeved on the side surface of the sliding cylinder, one end of the second spring is fixedly connected to one side inner wall of the connecting shell, and the other end of the second spring is fixedly connected to the side of the push plate near the sliding column.

[0008] As a preferred technical solution of this application, the mounting shell is vertically arranged, the top end of the limiting block extends into the interior of the connecting shell, one side of the limiting block is in contact with one side of the filter box, and the side of the push plate away from the slide column is in contact with the other side of the filter box.

[0009] As a preferred technical solution of this application, a pull rod is fixedly connected to the side of the limiting block away from the filter box, and a sliding groove is provided on one side of the mounting shell, through which the pull rod extends to the outside of the mounting shell.

[0010] As a preferred technical solution of this application, a sliding plate is fixedly connected to the bottom of the filter box, and a slide rail is fixedly connected inside the connecting shell, with the sliding plate inserted into the slide rail.

[0011] As a preferred technical solution of this application, a rotating shaft is fixedly connected inside the slide rail, and a roller is rotatably connected to the side surface of the rotating shaft, with the side surface of the roller contacting the bottom of the slide plate.

[0012] As a preferred technical solution of this application, a mounting bracket is fixedly connected to one side of the filter box, a motor is installed inside the mounting bracket, a rotating rod is rotatably connected inside the filter box, a fixed plate is provided on the rotating rod, one end of the rotating rod extends to the outside of the filter box and is fixedly connected to the output end of the motor, and a transmission wheel is fixedly connected to the side surface of the rotating rod, the transmission wheel being located outside the filter box.

[0013] This utility model has a simple structure and is easy to use. With the arrangement of a first spring, a limiting block, a pull rod, a second spring, and a push plate, after the operator pulls down the pull rod to cause the limiting block to retract inside the mounting shell, the second spring, which loses its squeezing force, will release pressure and can push the filter box to move through the push plate, so that the operator can take out the filter box. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a screw air compressor filter screen; Figure 2 This is a schematic diagram of the installation of a filter box in a screw air compressor filter screen; Figure 3 This is a schematic diagram of the installation of a rotating rod in a screw air compressor filter screen; Figure 4 This is a cross-sectional view of the connecting shell in a screw air compressor filter screen; Figure 5 for Figure 4 Enlarged view of point A in the image; Figure 6 for Figure 4 Enlarged view of point B in the image.

[0015] In the picture: 1. Connecting shell; 2. Filter box; 3. Mounting shell; 4. First spring; 5. Limiting block; 6. Pull rod; 7. Slide cylinder; 8. Slide column; 9. Second spring; 10. Push plate; 11. Slide plate; 12. Slide rail; 13. Roller; 14. Rotating rod; 15. Fixing plate; 16. Transmission wheel; 17. Mounting bracket; 18. Motor. Detailed Implementation

[0016] 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.

[0017] This utility model provides a screw air compressor filter screen, such as... Figure 1 , Figure 5 and Figure 6 As shown, the device includes a connecting shell 1, with connecting grooves at both the top and bottom. A filter box 2 is inserted into the inside of the connecting shell 1. A mounting shell 3 is fixedly connected to the bottom of the connecting shell 1. A limit block 5 is slidably connected inside the mounting shell 3. A first spring 4 is fixedly connected to the bottom end of the limit block 5. The bottom end of the first spring 4 is fixedly connected to the bottom inner wall of the mounting shell 3. A sliding cylinder 7 is fixedly connected to one side inner wall of the connecting shell 1. A sliding column 8 is slidably connected inside the sliding cylinder 7. One end of the sliding column 8 extends to the outside of the sliding cylinder 7 and is fixedly connected to a push plate 10. A second spring 9 is sleeved on the side surface of the sliding cylinder 7. One end of the second spring 9 is fixedly connected to one side inner wall of the connecting shell 1, and the other end of the second spring 9 is fixedly connected to the side of the push plate 10 near the sliding column 8.

[0018] The mounting shell 3 is vertically set, the top of the limiting block 5 extends into the interior of the connecting shell 1, one side of the limiting block 5 is in contact with one side of the filter box 2, and the side of the push plate 10 away from the slide column 8 is in contact with the other side of the filter box 2.

[0019] A pull rod 6 is fixedly connected to the side of the limiting block 5 away from the filter box 2. A sliding groove is provided on one side of the mounting shell 3, and the pull rod 6 extends to the outside of the mounting shell 3 through the sliding groove.

[0020] The connecting grooves at the top and bottom of the connecting shell 1 are used to connect the air supply pipe. The filter box 2 has a filter screen inside. When installing the filter box 2 inside the connecting shell 1, the pull rod 6 needs to be pulled down first. The pull rod 6 can drive the limiting block 5 to retract inside the mounting shell 3, thereby providing installation space for the filter box 2. When the limiting block 5 retracts, it can compress the first spring 4. After the top of the limiting block 5 is completely removed from the inside of the connecting shell 1, the filter box 2 can be inserted into the inside of the connecting shell 1. During the sliding process inside the connecting shell 1, the filter box 2 will come into contact with the push plate 10 and can squeeze the push plate 10, thereby forcing the push plate 10 to move inside the connecting shell 1. When the push plate 10 moves, it can... The compression of the second spring 9, the setting of the slide cylinder 7 and the slide column 8 ensures stability when the push plate 10 moves. When the filter box 2 is completely inside the connecting shell 1, the pull rod 6 can be released. At this time, the first spring 4 will release pressure and push the limit block 5 to move, so that its top end re-enters the connecting shell 1, thereby providing a limiting effect for the filter box 2 and improving the stability of the filter box 2. When replacing the filter screen, the pull rod 6 also needs to be pulled down first. When the top end of the limit block 5 is completely removed from the connecting shell 1, the second spring 9 will release pressure and push the filter box 2 to move through the push plate 10, so that the staff can take out the filter box 2.

[0021] Furthermore, in order to improve the smoothness of the movement of filter cartridge 2, such as Figure 1 , Figure 2 and Figure 4 As shown, a slide plate 11 is fixedly connected to the bottom of the filter box 2, and a slide rail 12 is fixedly connected inside the connecting shell 1. The slide plate 11 is inserted into the inside of the slide rail 12.

[0022] The slide rail 12 is fixedly connected to a rotating shaft, and a roller 13 is rotatably connected to the side surface of the rotating shaft. The side surface of the roller 13 is in contact with the bottom of the slide plate 11.

[0023] As the filter box 2 slides inside the connecting shell 1, the roller 13 also rotates due to friction, thus assisting the movement of the filter box 2. This effectively reduces the friction during the movement of the filter box 2 and improves the smoothness of its movement. Furthermore, in order to achieve air filtration, such as Figure 1 , Figure 2 and Figure 3 As shown, a mounting bracket 17 is fixedly connected to one side of the filter box 2. A motor 18 is installed inside the mounting bracket 17. A rotating rod 14 is rotatably connected inside the filter box 2. A fixing plate 15 is installed on the rotating rod 14. One end of the rotating rod 14 extends to the outside of the filter box 2 and is fixedly connected to the output end of the motor 18. A transmission wheel 16 is fixedly connected to the side surface of the rotating rod 14. The transmission wheel 16 is located outside the filter box 2.

[0024] There are two rotating rods 14, each equipped with a drive wheel 16. The two drive wheels 16 are connected by a belt. The rotating rods 14 are fixed to the fixed plate 15 with screws. When installing the filter screen, one end of the filter screen can be placed between one set of rotating rods 14 and the fixed plate 15, and then the screws can be turned to clamp the filter screen. Then, the current rotating rod 14 can be rotated to wrap the filter screen around it. After the wrapping is completed, the other end of the filter screen needs to be fixed between the other set of rotating rods 14 and the fixed plate 15. After the filter screen is installed, the filter box 2 can be installed inside the connecting shell 1. During use, air can enter the interior of the filter box 2 through the connecting groove on the connecting shell 1 and come into contact with the filter screen, which can then intercept impurities in the air.

[0025] 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 filter screen, comprising a connecting shell (1), characterized in that: The top and bottom of the connecting shell (1) are provided with connecting grooves. A filter box (2) is inserted into the inside of the connecting shell (1). An installation shell (3) is fixedly connected to the bottom of the connecting shell (1). A limit block (5) is slidably connected inside the installation shell (3). A first spring (4) is fixedly connected to the bottom end of the limit block (5). The bottom end of the first spring (4) is fixedly connected to the bottom inner wall of the installation shell (3). A slide cylinder (7) is fixedly connected to one side inner wall of the connecting shell (1). A slide column (8) is slidably connected inside the slide cylinder (7). One end of the slide column (8) extends to the outside of the slide cylinder (7) and is fixedly connected to a push plate (10). A second spring (9) is sleeved on the side surface of the slide cylinder (7). One end of the second spring (9) is fixedly connected to one side inner wall of the connecting shell (1), and the other end of the second spring (9) is fixedly connected to the side of the push plate (10) near the slide column (8).

2. The screw air compressor filter screen according to claim 1, characterized in that: The mounting shell (3) is vertically arranged, the top of the limiting block (5) extends into the interior of the connecting shell (1), one side of the limiting block (5) is in contact with one side of the filter box (2), and the side of the push plate (10) away from the slide column (8) is in contact with the other side of the filter box (2).

3. A screw air compressor filter screen according to claim 1, characterized in that: The limiting block (5) is fixedly connected to a pull rod (6) on the side away from the filter box (2), and a sliding groove is provided on one side of the mounting shell (3). The pull rod (6) extends to the outside of the mounting shell (3) through the sliding groove.

4. A screw air compressor filter screen according to claim 1, characterized in that: The bottom of the filter box (2) is fixedly connected to a slide plate (11), and the inside of the connecting shell (1) is fixedly connected to a slide rail (12). The slide plate (11) is inserted into the inside of the slide rail (12).

5. A screw air compressor filter screen according to claim 4, characterized in that: The slide rail (12) is fixedly connected to a rotating shaft inside, and a roller (13) is rotatably connected to the side surface of the rotating shaft. The side surface of the roller (13) is in contact with the bottom of the slide plate (11).

6. A screw air compressor filter screen according to claim 1, characterized in that: A mounting bracket (17) is fixedly connected to one side of the filter box (2). A motor (18) is installed inside the mounting bracket (17). A rotating rod (14) is rotatably connected inside the filter box (2). A fixing plate (15) is installed on the rotating rod (14). One end of the rotating rod (14) extends to the outside of the filter box (2) and is fixedly connected to the output end of the motor (18). A transmission wheel (16) is fixedly connected to the side surface of the rotating rod (14). The transmission wheel (16) is located outside the filter box (2).

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