Air filtering mechanism of permanent magnet screw air compressor

Abstract

The utility model relates to air compressor technical field especially relates to a kind of air filtering mechanism of permanent-magnetic screw air compressor, including air compressor body, fixed ring, air inlet pipe, the fixed ring is fixedly connected in the air compressor body outer surface, fixed component is installed in the air inlet pipe, the fixed component includes shaft, connecting block, mounting ring, fastening ring, pull plate, fastening spring, the shaft rotation is connected in the air inlet pipe, the utility model is replaced by the cooperation of mounting ring, fastening ring, fastening spring and other parts, worker can simply and quickly, worker does not need to disassemble work to air inlet pipe and air compressor body, guarantee the sealing performance of air inlet pipe and air compressor body, meanwhile, worker can clean old filter screen when working on air compressor body, save cleaning time, improve work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of air compressor technology, and in particular to an air filtration mechanism for a permanent magnet screw air compressor. Background Technology

[0002] Permanent magnet screw air compressors are high-efficiency and energy-saving equipment developed by combining permanent magnet motors and variable frequency control technology with traditional air compressor technology. Compared with traditional fixed frequency air compressors, permanent magnet variable frequency models can dynamically adjust the speed and output power according to actual needs through permanent magnet motors and variable frequency control systems, so as to achieve precise control of air volume.

[0003] After prolonged use, the air filter of existing air compressors accumulates a large amount of dust and foreign matter on its surface. This dust or foreign matter seriously affects the air intake effect of the compressor. Since the filter is usually located inside the air intake pipe, the installation, disassembly and cleaning work is quite troublesome. Repeated disassembly will also reduce the sealing performance of the air intake pipe, which is not conducive to the air intake operation of the air compressor. Utility Model Content

[0004] The purpose of this utility model is to solve the following shortcomings in the prior art: after a long period of use, the air filter mechanism of the existing air compressor will have a lot of dust and foreign objects on the surface of the filter screen. These dust or foreign objects seriously affect the air intake effect of the compressor. The filter screen is usually located inside the air intake pipe, and the installation, disassembly and cleaning work is relatively troublesome. Repeated disassembly will also reduce the sealing performance of the air intake pipe, which is not conducive to the air intake operation of the air compressor. Therefore, an air filter mechanism for a permanent magnet screw air compressor is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An air filtration mechanism for a permanent magnet screw air compressor includes an air compressor body, a retaining ring, and an intake pipe, wherein the retaining ring is fixedly connected to the outer surface of the air compressor body; A fixing component is installed inside the intake pipe. The fixing component includes a rotating shaft, a connecting block, a mounting ring, a fastening ring, a pull plate, and a fastening spring. The rotating shaft is rotatably connected inside the intake pipe. The connecting block is threadedly connected to the outer surface of the rotating shaft. The mounting ring is fixedly connected to the connecting block and slidably connected to the intake pipe. Both fastening rings are slidably connected inside the mounting ring. Multiple fastening springs are fixedly connected between the fastening ring and the inner wall of the mounting ring. One end of the pull plate passes through the mounting ring and is fixedly connected to the fastening ring. The pull plate is slidably connected to the mounting ring.

[0006] Preferably, a filter screen is installed between the two fastening rings, the filter screen is slidably connected to the fastening rings, a limiting groove is formed in the air intake pipe, and the connecting block is slidably connected in the limiting groove.

[0007] Preferably, a sealing groove is provided at one end of the air compressor body, a sealing plate is slidably connected in the sealing groove, and a plurality of straight springs are fixedly connected between the sealing plate and the sealing groove.

[0008] Preferably, a sealing ring is fixedly connected to one end of the air intake pipe near the sealing plate. The outer surface of the sealing ring is provided with multiple protrusions, and the outer surface of the sealing plate is provided with multiple arc-shaped through holes. The protrusions are slidably connected in the arc-shaped through holes.

[0009] Preferably, two straight rods are fixedly connected to the outer surface of the air intake pipe, two square through holes are opened on the outer surface of the fixing ring, the straight rods are slidably connected in the square through holes, and locking holes are opened on the outer surface of the straight rods.

[0010] Preferably, two locking rods are slidably connected to the fixed ring, one end of the locking rod passing through the fixed ring is slidably connected in the locking hole, and a return spring is fixedly connected between one end of the locking rod and the fixed ring.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. Through the cooperation of parts such as mounting rings, fastening rings, and fastening springs, workers can easily and quickly replace old filters without disassembling the intake pipe and air compressor body, ensuring the sealing performance of the intake pipe and air compressor body. At the same time, workers can clean the old filter while the air compressor body is working, saving cleaning time and improving work efficiency.

[0012] 2. The intake pipe and the air compressor body are kept in a sealed state by the cooperation of parts such as sealing ring, sealing groove, and sealing plate. This ensures that occasional disassembly will not affect its sealing performance, prevents the disassembly from affecting the air compressor body, and improves the practicality and safety of the intake pipe. Attached Figure Description

[0013] Figure 1 This is a front structural schematic diagram of the air filtration mechanism of a permanent magnet screw air compressor proposed in this utility model; Figure 2 This is a schematic diagram of the exploded structure of the sealing ring of the air filter mechanism of a permanent magnet screw air compressor proposed in this utility model. Figure 3 This is a schematic diagram of the internal structure of the air intake pipe of an air filtration mechanism for a permanent magnet screw air compressor proposed in this utility model. Figure 4 This is a schematic diagram of the internal structure of the mounting ring of the air filter mechanism of a permanent magnet screw air compressor proposed in this utility model.

[0014] In the diagram: 1 Air compressor body, 2 Fixed ring, 3 Inlet pipe, 4 Sealing ring, 5 Sealing plate, 6 Straight spring, 7 Sealing groove, 8 Rotary shaft, 9 Connecting block, 10 Mounting ring, 11 Filter screen, 12 Fastening ring, 13 Pull plate, 14 Fastening spring, 15 Locking rod, 16 Return spring, 17 Straight rod. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] The terms used in this utility model, such as "upper", "lower", "left", "right", "middle" and "one", are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0017] Reference Figure 1 An air filtration mechanism for a permanent magnet screw air compressor includes an air compressor body 1, a fixing ring 2, and an intake pipe 3. The air compressor body 1 is existing technology. The fixing ring 2 is fixedly connected to the outer surface of the air compressor body 1, and two round holes are opened on the outer surface of the fixing ring 2.

[0018] Reference Figures 3-4 The intake pipe 3 is equipped with fixing components, including a rotating shaft 8, a connecting block 9, a mounting ring 10, a fastening ring 12, a pull plate 13, and a fastening spring 14. The rotating shaft 8 is rotatably connected inside the intake pipe 3. The connecting block 9 is threadedly connected to the outer surface of the rotating shaft 8 and is L-shaped. A limit groove is provided inside the intake pipe 3, and the connecting block 9 is slidably connected within the limit groove. The mounting ring 10 is fixedly connected to the connecting block 9, and the mounting ring 10 and the intake pipe 3 are in a sealed sliding connection. Figure 4As shown, the mounting ring 10 is slidably connected to the air intake pipe 3, and two fastening rings 12 are slidably connected inside the mounting ring 10. The outer surface of the fastening ring 12 has a slot, which corresponds to the retaining plate of the filter screen 11. Multiple fastening springs 14 are fixedly connected between the fastening ring 12 and the inner wall of the mounting ring 10. The fastening springs 14 have a large elastic force, which can ensure that the filter screen 11 can be installed relatively stably inside the air intake pipe 3. The pull plate 13 passes through one end of the mounting ring 10 and is fixedly connected to the fastening ring 12. The pull plate 13 is slidably connected to the mounting ring 10. The filter screen 11 is installed between the two fastening rings 12. The outer surface of the filter screen 11 has a retaining plate, and the filter screen 11 is slidably connected to the fastening ring 12.

[0019] Reference Figure 2 One end of the air compressor body 1 has a sealing groove 7, and a sealing plate 5 is slidably connected in the sealing groove 7. The sealing plate 5 and the sealing groove 7 are sealed and slid together. Multiple straight springs 6 are fixedly connected between the sealing plate 5 and the sealing groove 7. The straight springs 6 have a certain elasticity. A sealing ring 4 is fixedly connected to one end of the air intake pipe 3 near the sealing plate 5. Multiple protrusions are provided on the outer surface of the sealing ring 4. Multiple arc-shaped through holes are provided on the outer surface of the sealing plate 5. The protrusions are slidably connected in the arc-shaped through holes. The protrusions can be completely stuck in the arc-shaped through holes.

[0020] Reference Figure 1 Two straight rods 17 are fixedly connected to the outer surface of the intake pipe 3. Two square through holes are opened on the outer surface of the fixing ring 2. The straight rods 17 can be fully inserted into the fixing ring 2. The straight rods 17 are slidably connected in the square through holes. Locking holes are opened on the outer surface of the straight rods 17. Two locking rods 15 are slidably connected on the fixing ring 2. One end of the locking rod 15 passes through the fixing ring 2 and is slidably connected in the locking hole. A return spring 16 is fixedly connected between one end of the locking rod 15 and the fixing ring 2.

[0021] In this invention, when the air compressor body 1 is working, the internal exhaust fan draws outside air into the air compressor body 1 through the intake pipe 3. When the gas passes through the intake pipe 3, the filter screen 11 inside the intake pipe 3 blocks dust or foreign objects in the outside gas, preventing dust or foreign objects from clogging the devices inside the air compressor body 1. As the air compressor body 1 continues to work, more and more dust or foreign objects accumulate on the filter screen 11, which can affect the normal operation of the air compressor body 1. Workers need to clean the filter screen 11 in a timely manner. Workers can rotate the rotating shaft 8, which drives the connecting block 9 to move. The movement of the connecting block 9 drives the mounting ring 10 to move. As the rotating shaft 8 continues to rotate, the continuous movement of the connecting block 9 causes the mounting ring 10 to slide out of the intake pipe 3. Workers can pull the two pull plates 13, which drive the fastening ring 12 to move. The fastening ring 12 moves inward toward the mounting ring 10, tightening the connection between the mounting ring 10 and the fastening ring 12. When the spring 14 is subjected to pressure, it bends and deforms. At this time, the two fastening rings 12 slide out from both ends of the filter screen 11, and the filter screen 11 loses the fixing effect of the fastening rings 12. The worker can then remove the filter screen 11 and place the new filter screen 11 between the two fastening rings 12. At this time, the pull plate 13 is released, and the fastening rings 12 move towards the connection of the filter screen 11 under the elastic force of the fastening spring 14. Under the action of the two fastening rings 12, the newly replaced filter screen 11 is locked, completing the fixing of the filter screen 11. The shaft 8 is rotated in the opposite direction, and the rotation of the shaft 8 returns the mounting ring 10 and the filter screen 11 back into the intake pipe 3 through the connecting block 9, so that the air compressor body 1 can continue to work normally. The entire installation and replacement work is simple and quick. The worker does not need to disassemble the intake pipe 3 and the air compressor body 1, ensuring the sealing performance of the intake pipe 3 and the air compressor body 1. The worker can clean the old filter screen 11 while the air compressor body 1 is working, saving cleaning time and improving work efficiency.

[0022] After the air compressor body 1 has been running for a long time, some dirt will inevitably accumulate inside the intake pipe 3. To ensure the cleanliness of the intake pipe 3, the worker can pull the locking rods 15 on the two fixing rings 2. The locking rods 15 slide out of the locking holes of the straight rod 17, and the locking rods 15 lose their fixing effect on the straight rod 17. At this time, the intake pipe 3 and the air compressor body 1 are no longer fixed. Pulling the intake pipe 3 will separate the two, allowing the worker to quickly clean the intake pipe 3. After the intake pipe 3 is cleaned, the protrusion on the sealing ring 4 is aligned with the arc-shaped through hole on the sealing plate 5. The protrusion passes through the arc-shaped through hole, and the sealing ring 4 contacts the sealing plate 5. Then, the air compressor body 1... When pressed in a certain direction, the sealing ring 4 moves the sealing plate 5 into the sealing groove 7. At this time, the straight spring 6 bends under force. When the sealing ring 4 is fully inserted into the sealing groove 7, the intake pipe 3 is completely in contact with the air compressor body 1. At this time, the locking rod 15 is released. The locking rod 15 re-enters the locking hole of the straight rod 17 under the left and right pressure of the return spring 16, thus completing the fixing of the intake pipe 3 and the air compressor body 1. Under the left and right pressure of the sealing plate 5 and the sealing ring 4, the intake pipe 3 and the air compressor body 1 are kept in a sealed state at all times. This ensures that occasional disassembly will not affect its sealing performance, prevents the disassembly from affecting the air compressor body 1, and improves the practicality and safety of the intake pipe 3.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing", etc., should be interpreted broadly.

[0024] 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. An air filtration mechanism for a permanent magnet screw air compressor, comprising an air compressor body (1), a fixed ring (2), and an intake pipe (3), characterized in that, The fixing ring (2) is fixedly connected to the outer surface of the air compressor body (1); The intake pipe (3) is equipped with a fixing component, which includes a rotating shaft (8), a connecting block (9), a mounting ring (10), a fastening ring (12), a pull plate (13), and a fastening spring (14). The rotating shaft (8) is rotatably connected to the intake pipe (3). The connecting block (9) is threadedly connected to the outer surface of the rotating shaft (8). The mounting ring (10) is fixedly connected to the connecting block (9). The mounting ring (10) is slidably connected to the intake pipe (3). Both fastening rings (12) are slidably connected to the mounting ring (10). Multiple fastening springs (14) are fixedly connected between the fastening ring (12) and the inner wall of the mounting ring (10). One end of the pull plate (13) passes through the mounting ring (10) and is fixedly connected to the fastening ring (12). The pull plate (13) is slidably connected to the mounting ring (10).

2. The air filtration mechanism of a permanent magnet screw air compressor according to claim 1, characterized in that, A filter screen (11) is installed between the two fastening rings (12), and the filter screen (11) is slidably connected to the fastening rings (12). A limiting groove is opened in the air inlet pipe (3), and the connecting block (9) is slidably connected in the limiting groove.

3. The air filtration mechanism of a permanent magnet screw air compressor according to claim 1, characterized in that, The air compressor body (1) has a sealing groove (7) at one end, a sealing plate (5) is slidably connected in the sealing groove (7), and a plurality of straight springs (6) are fixedly connected between the sealing plate (5) and the sealing groove (7).

4. The air filtration mechanism of a permanent magnet screw air compressor according to claim 3, characterized in that, The intake pipe (3) is fixedly connected to a sealing ring (4) at one end near the sealing plate (5). The outer surface of the sealing ring (4) is provided with multiple protrusions, and the outer surface of the sealing plate (5) is provided with multiple arc-shaped through holes. The protrusions are slidably connected in the arc-shaped through holes.

5. The air filtration mechanism of a permanent magnet screw air compressor according to claim 1, characterized in that, Two straight rods (17) are fixedly connected to the outer surface of the air intake pipe (3). Two square through holes are opened on the outer surface of the fixing ring (2). The straight rods (17) are slidably connected in the square through holes. Locking holes are opened on the outer surface of the straight rods (17).

6. The air filtration mechanism of a permanent magnet screw air compressor according to claim 5, characterized in that, Two locking rods (15) are slidably connected on the fixed ring (2). One end of the locking rod (15) passes through the fixed ring (2) and is slidably connected in the locking hole. A return spring (16) is fixedly connected between one end of the locking rod (15) and the fixed ring (2).

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