Inlet air filtering device for oil-free compressor

Abstract

The utility model discloses an intake air filtering device for an oil-free compressor, which relates to the technical field of oil-free compressor equipment and comprises an air inlet pipeline, a fixing component is rotatably arranged in the air inlet pipeline, and an adjusting and limiting component capable of driving the fixing component to rotate and limiting is arranged on the air inlet pipeline. The fixing assembly comprises a pair of fixing plates and four right-angle plates, the four right-angle plates are evenly arranged between the pair of fixing plates, and the pair of fixing plates are rotationally arranged in the air inlet pipeline; according to the utility model, the positions of the four filter plates are repeatedly adjusted, so that the filter plate to be disassembled and cleaned is rotated to the inlet side of the air inlet pipeline, the filth-blocked filter plate is disassembled and cleaned by personnel, and in the cleaning process, the pair of filter plates in the standby state are in the use state, so that the inlet air can be filtered in the cleaning process, and the cleaning efficiency is improved. And the operation of the oil-free compressor does not need to be stopped.

Description

Technical Field

[0001] The utility model relates to the technical field of oil-free compressor equipment, in particular to an air intake filtering device for an oil-free compressor. Background Art

[0002] An oil-free compressor refers to a compressor that does not use lubricating oil in the compressor cylinder. The crankcase of a completely oil-free compressor is of a dry structure, and its connecting rod large and small holes, and the front and rear main bearings of the crankshaft generally adopt grease-containing ball bearings with double-port seals. Since there is no lubricating oil in contact with the compressed air source during operation, the discharged gas is absolutely free of oil and gas.

[0003] When an oil-free compressor is in use, a filtering device needs to be arranged at the air inlet to filter out impurities such as dust in the intake air. However, after the filtering device is used for a period of time, the filtering element therein is prone to dirt blockage and needs to be cleaned. When the filtering element is disassembled and cleaned, the operation of the oil-free compressor needs to be stopped, which in turn affects the continuous operation of the oil-free compressor. Therefore, an air intake filtering device for an oil-free compressor is urgently needed to be developed. Content of the Utility Model

[0004] In view of the above deficiencies of the prior art, the utility model provides an air intake filtering device for an oil-free compressor. By repeatedly adjusting the positions of four filter plates, the filter plate to be disassembled and cleaned is rotated to the inlet side of the intake pipe, and the operator disassembles and cleans the dirt-blocked filter plate. During the cleaning process, a pair of filter plates in the standby state are in the use state to ensure that the intake air can be filtered during the cleaning process without stopping the operation of the oil-free compressor.

[0005] To achieve the above purposes, the utility model is realized through the following technical solutions: An air intake filtering device for an oil-free compressor includes an intake pipe, a fixing component is rotatably arranged in the intake pipe, an adjusting and limiting component capable of driving the fixing component to rotate and performing limiting is arranged on the intake pipe. The fixing component includes a pair of fixing plates and four right-angle plates. The four right-angle plates are evenly arranged between the pair of fixing plates. The pair of fixing plates are rotatably arranged in the intake pipe. The right-angle sides of each adjacent pair of right-angle plates are opposite to each other, and a connecting plate is detachably arranged between them. A filter plate is arranged on each connecting plate.

[0006] Preferably, a plurality of limiting cylinders are penetrated through one side of each right-angle plate. A first limiting ring is arranged on the inner wall of the end of the limiting cylinder. A first inserting rod penetrates through the limiting cylinder and the first limiting ring. A second limiting ring is arranged on the first inserting rod. A first compression spring is sleeved on the first inserting rod between the first limiting ring and the second limiting ring. A plurality of first inserting holes are formed on each connecting plate. A first inserting slot is formed on the right-angle plate opposite to the right-angle plate provided with the limiting cylinder. The first inserting rod can penetrate through the first inserting hole and the end part is embedded into the first inserting slot.

[0007] Preferably, the adjustment limit assembly includes a rotating rod, a rotating plate, a second plug rod, a third limit ring and a second compression spring, the rotating rod passes through the side wall of the intake pipe and is connected to the fixed plate, the rotating rod is rotatably set on the intake pipe, the rotating plate is set at the end of the rotating rod outside the intake pipe, a second plug hole is opened on the rotating plate, the second plug rod is inserted in the second plug hole, a third limit ring is arranged on the second plug rod, a second compression spring is sleeved on the second plug rod and located between the third limit ring and the rotating plate, four second slots are opened in a cross shape on the outer wall of the intake pipe, and the end of the second plug rod can be embedded in the second slot.

[0008] The utility model provides an air intake filter device for an oil-free compressor, which has the following beneficial effects:

[0009] 1. The utility model repeatedly adjusts the positions of the four filter plates so that the filter plates to be disassembled and cleaned are rotated to the inlet side of the air intake pipe. The personnel disassemble and clean the dirty and blocked filter plates. During the cleaning process, the pair of filter plates in the standby state are in the use state, so as to ensure that the intake air can be filtered during the cleaning process without stopping the operation of the oil-free compressor;

[0010] 2. When the filter plate is disassembled, the personnel manually pushes the first plug rod upwards, and the plug rod is pulled out from the first slot and the first plug hole opened in the connecting plate, and drives the second limiting ring to move in the direction of the first limiting ring, so that the first compression spring between the first limiting ring and the second limiting ring is compressed, and the personnel manually pulls out the filter plate and the connecting plate to clean the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0012] Figure 2 For this utility model Figure 1 A magnified view of part A;

[0013] Figure 3 It is a left view of the utility model;

[0014] Figure 4 For this utility model Figure 3 Enlarged view of part B.

[0015] In the figure: 1, intake pipe; 2, fixing plate; 3, right-angle plate; 4, limiting cylinder; 5, first limiting ring; 6, first insertion rod; 7, second limiting ring; 8, first compression spring; 9, first slot; 10, connecting plate; 10-1, first insertion hole; 11, filter plate; 12, rotating rod; 13, rotating plate; 13-1, second insertion hole; 14, second insertion rod; 15, second compression spring; 16, third limiting ring; 17, second slot. Detailed implementation manner

[0016] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0017] As Figures 1-4As shown in the figure, an intake air filtering device for an oil-free compressor includes an intake air pipe 1. A fixing component is rotatably arranged in the intake air pipe 1. An adjusting and limiting component capable of driving the fixing component to rotate and performing limiting is arranged on the intake air pipe 1. The fixing component includes a pair of fixing plates 2 and four right-angle plates 3. The four right-angle plates 3 are evenly arranged between the pair of fixing plates 2. The pair of fixing plates 2 are rotatably arranged in the intake air pipe 1. The right-angle sides of each adjacent pair of the right-angle plates 3 face each other, and a connecting plate 10 is detachably arranged therebetween. A filter plate 11 is arranged on each connecting plate 10; a plurality of limiting cylinders 4 are penetrated through one side of each right-angle plate 3. A first limiting ring 5 is arranged on the inner wall of the end of the limiting cylinder 4. A first insertion rod 6 is penetrated through the limiting cylinder 4 and the first limiting ring 5. A second limiting ring 7 is arranged on the first insertion rod 6. A first compression spring 8 is sleeved on the first insertion rod 6 between the first limiting ring 5 and the second limiting ring 7. A plurality of first insertion holes 10-1 are formed in each connecting plate 10. A first slot 9 is formed in the right-angle plate 3 opposite to the right-angle plate 3 provided with the limiting cylinder 4. The first insertion rod 6 can penetrate through the first insertion hole 10-1 and the end thereof is embedded in the first slot 9; the adjusting and limiting component includes a rotating rod 12, a rotating plate 13, a second insertion rod 14, a third limiting ring 16 and a second compression spring 15. The rotating rod 12 penetrates through the side wall of the intake air pipe 1 and is connected to the fixing plate 2. The rotating rod 12 is rotatably arranged on the intake air pipe 1. The rotating plate 13 is arranged at the end of the rotating rod 12 outside the intake air pipe 1. A second insertion hole 13-1 is formed in the rotating plate 13. The second insertion rod 14 is inserted in the second insertion hole 13-1. A third limiting ring 16 is arranged on the second insertion rod 14. A second compression spring 15 is sleeved on the second insertion rod 14 between the third limiting ring 16 and the rotating plate 13. Four second slots 17 are formed in a cross shape on the outer wall of the intake air pipe 1. The end of the second insertion rod 14 can be embedded in the second slot 17.

[0018] The detailed connection means are well-known techniques in the art. The following mainly introduces the working principle and process, which are as follows:

[0019] According to the attached drawings of the specification Figures 1-4It can be seen that the four filter plates 11 of the present utility model are detachably arranged in a cross shape on the four right-angle plates 3. When filtering the air entering the intake pipe 1, a pair of opposite filter plates 11 block the intake pipe 1 (this pair of filter plates 11 is in the radial direction of the intake pipe 1), and the other pair of filter plates 11 is parallel to the intake pipe 1 as a standby state. When it is necessary to disassemble and clean a pair of dirty and blocked filter plates 11, first rotate the four filter plates 11 by 90 degrees, disassemble one filter plate 11 close to the inlet of the intake pipe 1, reinstall it after cleaning, then rotate the four filter plates 11 by 180 degrees, rotate the other dirty and blocked filter plate 11 to the inlet side of the intake pipe 1, and reinstall it after disassembly. During the disassembly and cleaning process, the pair of standby filter plates 11 is in use, that is, this pair of filter plates 11 is in the position of blocking the intake pipe 1. In this way, it can be realized that when cleaning the filter plates 11, the intake air can also be filtered; the present utility model repeatedly adjusts the positions of the four filter plates 11 to rotate the filter plates 11 to be disassembled and cleaned to the inlet side of the intake pipe 1, and the personnel disassemble and clean the dirty and blocked filter plates 11. During the cleaning process, the pair of standby filter plates 11 is in use to ensure that the intake air can also be filtered during the cleaning process without stopping the operation of the oil-free compressor.

[0020] There is a possible implementation. When disassembling the filter plate 11, the personnel manually push up the first insertion rod 6, and the insertion rod is pulled out from the first slot 9 and the first insertion hole 10-1 opened on the connecting plate 10, and drives the second limiting ring 7 to move towards the direction of the first limiting ring 5, so that the first compression spring 8 between the first limiting ring 5 and the second limiting ring 7 is compressed. The personnel manually pull out the filter plate 11 and the connecting plate 10 to clean the filter plate 11, and the reverse operation can be performed during installation. During normal use, under the elastic force of the first compression spring 8, it can be ensured that the insertion rod is always inserted into the first insertion hole 10-1 and the first slot 9, so as to limit the connecting plate 10 by the insertion rod.

[0021] There is a possible implementation. When adjusting the position of the filter plate 11, the personnel manually push out the second insertion rod 14, and the end of the second insertion rod 14 is pulled out from the second slot 17. The personnel rotate the rotating plate 13 to adjust the position. The rotating plate 13 drives the rotating rod 12 to rotate, the rotating rod 12 drives the connected fixing plate 2 to rotate, the fixing plate 2 drives the four right-angle plates 3 to rotate, and the four right-angle plates 3 drive the four filter plates 11 to rotate, so as to realize the adjustment of the positions of the four filter plates 11. When rotated to the appropriate position, the personnel release the second insertion rod 14, and under the elastic force of the second compression spring 15, it drives the third limiting ring 16 to move towards the direction of the intake pipe 1, and the third limiting ring 16 drives the second insertion rod 14 to move, so that the end of the second insertion rod 14 is embedded into the corresponding second slot 17 again. The four second slots 17 are arranged in a cross shape to correspond to the positions of the four filter plates 11.

[0022] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An intake air filtering device for an oil-free compressor, comprising an intake air pipe (1), characterized in that, A fixing component is rotatably arranged in the intake pipe (1). An adjusting and limiting component capable of driving the fixing component to rotate and performing limiting is arranged on the intake pipe (1). The fixing component includes a pair of fixing plates (2) and four right-angle plates (3). The four right-angle plates (3) are evenly arranged between the pair of fixing plates (2). The pair of fixing plates (2) are rotatably arranged in the intake pipe (1). The right-angle sides of each adjacent pair of the right-angle plates (3) face each other, and a connecting plate (10) is detachably arranged therebetween. A filter plate (11) is arranged on each connecting plate (10).

2. The intake air filtering device for an oil-free compressor according to claim 1, characterized in that, A plurality of limiting cylinders (4) are arranged through one side of each right-angle plate (3). A first limiting ring (5) is arranged on the inner wall of the end of the limiting cylinder (4). A first inserting rod (6) is arranged through the limiting cylinder (4) and the first limiting ring (5). A second limiting ring (7) is arranged on the first inserting rod (6). A first compression spring (8) is sleeved on the first inserting rod (6) between the first limiting ring (5) and the second limiting ring (7). A plurality of first inserting holes (10-1) are formed in each connecting plate (10). A first slot (9) is formed in the right-angle plate (3) opposite to the right-angle plate (3) provided with the limiting cylinder (4). The first inserting rod (6) can penetrate through the first inserting hole (10-1) and the end thereof can be embedded into the first slot (9).

3. The air intake filtering device for an oil-free compressor according to claim 1, characterized in that, The adjusting and limiting component includes a rotating rod (12), a rotating plate (13), a second inserting rod (14), a third limiting ring (16) and a second compression spring (15). The rotating rod (12) penetrates through the side wall of the intake pipe (1) and is connected to the fixing plate (2). The rotating rod (12) is rotatably arranged on the intake pipe (1). The rotating plate (13) is arranged at the end of the rotating rod (12) outside the intake pipe (1). A second inserting hole (13-1) is formed in the rotating plate (13). The second inserting rod (14) is inserted into the second inserting hole (13-1). A third limiting ring (16) is arranged on the second inserting rod (14). A second compression spring (15) is sleeved on the second inserting rod (14) between the third limiting ring (16) and the rotating plate (13). Four second slots (17) are formed in a cross shape on the outer wall of the intake pipe (1). The end of the second inserting rod (14) can be embedded into the second slot (17).

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