Filtering device for air compressor

Abstract

The utility model relates to the technical field of air compressors, in particular to a filtering device for an air compressor, which comprises a filter, a ventilation pipe is fixedly communicated with the inner wall of the filter, air inlet pipes respectively penetrate through the outer wall of the filter and the outer wall of the ventilation pipe, the air inlet pipes are communicated with the filter and the ventilation pipe, and two clamping grooves are arranged on the outer wall of one side of the filter close to the air inlet pipes. The inner wall of the filter is in sliding contact with a first filter screen and a second filter screen which are in sliding connection with the two clamping grooves correspondingly, the inner wall of the side, close to the clamping grooves, of the filter is fixedly connected with a first fixing column, and the flow speed generated when compressed air penetrates through the first filter screen finally enables wind power generated by rotation of a second fan to achieve the air purification effect. The speed measuring sliding block is driven to push the conducting strip to increase or decrease the moving distance on the resistance plate so as to determine the resistance, and as the ratio of the resistance to the output current is inversely proportional, the brightness of the warning lamp is determined according to the output current so as to judge whether the filter screen needs to be replaced or not.

Description

Technical Field

[0001] This utility model relates to the field of air compressor technology, and specifically to a filtration device for air compressors. Background Technology

[0002] An air compressor is a device used to compress gas. Air compressors are similar in structure to water pumps. Most air compressors are reciprocating piston type, rotary vane or rotary screw type. Centrifugal compressors are used in very large applications. In actual industrial production, since most factories are built in industrial areas and near highways, coupled with construction projects, power plants, etc., the air quality in industrial areas is poor and there is a lot of dust.

[0003] Some existing traditional air compressor filtration devices cannot detect the clogging status of each filter screen in a timely manner during the filtration process. This leads to the clogging problem not being resolved in time, thus missing the best maintenance time. Failure to detect and clean the filter screen in time may cause more serious equipment damage, thereby increasing maintenance and repair costs. Failure to detect clogging in time may also reduce the air filtration effect. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a filtration device for air compressors, which can effectively solve the problem that the existing technology cannot detect filter blockage in time.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] This utility model provides a filtration device for an air compressor, including a filter. A ventilation pipe is fixedly connected to the inner wall of the filter. An air inlet pipe passes through the outer walls of both the filter and the ventilation pipe. Two slots are formed on the outer wall of the filter near the air inlet pipe. A first filter screen and a second filter screen, slidably connected to the two slots, are slidably contacted on the inner wall of the filter. A first fixing post is fixedly connected to the inner wall of the filter near the slots. A first rotating shaft rotatably passes through the bottom end of the first fixing post, and a first fan and a first bevel gear are fixedly connected to both ends of the first rotating shaft. A wind speed testing chamber is fixedly connected to the outer wall of the filter away from the first rotating shaft. A rotating shaft also passes through the outer wall of the filter away from the first rotating shaft, with its top end extending into the wind speed testing chamber and fixedly connected to a second fan. A second bevel gear meshing with the first bevel gear is fixedly connected to the bottom end of the rotating shaft.

[0007] Furthermore, a speed measuring slider is slidably connected to the inner wall of the wind speed testing chamber, which is located directly above the second fan. A conductive sheet is fixedly connected to the upper surface of the speed measuring slider. A resistance plate, which is fixedly connected to the inner wall of the wind speed testing chamber, is slidably connected to the side of the conductive sheet away from the first fan. A warning light is fixedly connected to the top of the wind speed testing chamber, and the warning light is electrically connected to the conductive sheet to form a speed measuring circuit. Ventilation openings are provided on the symmetrical side of the filter.

[0008] Furthermore, the diameter of the ventilation duct gradually increases along the direction from the air inlet to the first filter screen, and the pore density of the second filter screen is greater than that of the first filter screen, which can filter impurities in the air more finely.

[0009] Furthermore, a first locking hole is fixedly connected to the outer wall of the first filter screen near the second fan, and a squeezing block is fixedly connected to the side of the first locking hole away from the wind speed testing chamber. A second locking hole is fixedly connected to the outer wall of the filter screen near the squeezing block. A locking bolt slides through the second locking hole and extends into the first locking hole. A spring that is sleeved on the outer wall of the locking bolt is fixedly connected to the side of the second locking hole away from the squeezing block.

[0010] Furthermore, a second fixing block is fixedly connected to the inner wall of the filter near the air intake pipe, and a motor is fixedly connected to the bottom of the speed measuring slider, with a third fan fixedly connected to the output end of the motor.

[0011] Furthermore, the conductive sheet and the resistance plate together form a sliding rheostat, allowing the conductive sheet to slide on the resistance coil, thereby changing the current through the change in resistance. The two ends of the ventilation pipe are connected through each other.

[0012] The technical solution provided by this utility model, compared with the known prior art, has the following advantages:

[0013] Beneficial effects:

[0014] The airflow generated by the compressed air passing through the first filter ultimately causes the second fan to rotate, generating airflow that drives the speed measuring slider to move the conductive plate on the resistance plate. The distance the movement changes, thus determining the resistance. Since the resistance is inversely proportional to the output current, the brightness of the warning light is determined by the current output, indicating whether the filter needs to be replaced. Timely replacement of clogged filters ensures smooth airflow, preventing the compressor from malfunctioning due to excessive pressure, thereby improving overall equipment efficiency. Maintaining a good filter condition reduces wear and tear on the internal components of the air compressor caused by dust and particles, thus extending the equipment's lifespan. Good filtration also prevents system malfunctions or safety issues caused by poor air quality. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a partial cross-sectional three-dimensional structural schematic diagram of the present utility model;

[0018] Figure 3 This utility model Figure 1 Enlarged view of point A in the middle;

[0019] Figure 4 This utility model Figure 2 Enlarged view of point B in the middle.

[0020] The labels in the diagram represent: 1. Filter; 2. Ventilation duct; 3. Air inlet duct; 4. Slot; 5. Warning light; 6. First filter screen; 7. Second filter screen; 8. First fixing post; 9. First rotating shaft; 10. First fan; 11. First bevel gear; 12. Second bevel gear; 13. Rotating shaft; 14. Second fan; 15. Wind speed test chamber; 16. Speed ​​measuring slider; 17. Conductive sheet; 18. Resistance plate; 19. Ventilation port; 20. Air outlet duct; 21. First locking hole; 22. Compression block; 23. Second locking hole; 24. Locking bolt; 25. Spring; 26. Second fixing block; 27. Motor; 28. Third fan. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0022] The present invention will be further described below with reference to the embodiments.

[0023] Example: Refer to Figures 1 to 4A filtration device for an air compressor includes a filter 1. A ventilation pipe 2 is fixedly connected to the inner wall of the filter 1. An air inlet pipe 3 passes through the outer walls of both the filter 1 and the ventilation pipe 2. Two slots 4 are formed on the outer wall of the filter 1 near the air inlet pipe 3. A first filter screen 6 and a second filter screen 7, which are slidably connected to the two slots 4, are slidably contacted on the inner wall of the filter 1. A first fixing post 8 is fixedly connected to the inner wall of the filter 1 near the slots 4. A first rotating shaft 9 rotatably passes through the bottom end of the first fixing post 8. A first fan 10 and a first bevel gear 11 are fixedly connected to both ends of the first rotating shaft 9. A wind speed testing chamber 15 is fixedly connected to the outer wall of the filter 1 away from the first rotating shaft 9. A rotating shaft 13 passes through the outer wall of the filter 1 away from the first rotating shaft 9. The top end of the rotating shaft 13 extends into the interior of the wind speed testing chamber 15 and is fixedly connected to a second fan 14. A second bevel gear 12, which meshes with the first bevel gear 11, is fixedly connected to the bottom end of the rotating shaft 13.

[0024] The inner wall of the wind speed testing chamber 15 is slidably connected to a speed measuring slider 16 located directly above the second fan 14. A conductive sheet 17 is fixedly connected to the upper surface of the speed measuring slider 16. A resistance plate 18, which is fixedly connected to the inner wall of the wind speed testing chamber 15, is slidably connected to the side of the conductive sheet 17 away from the first fan 10. A warning light 5 is fixedly connected to the top of the wind speed testing chamber 15, and the warning light 5 is electrically connected to the conductive sheet 17 to form a speed measuring circuit. Ventilation openings 19 are provided on the symmetrical side of the filter 1. The diameter of the ventilation pipe 2 gradually increases along the direction from the air inlet pipe 3 to the first filter screen 6. The sieve hole density of the second filter screen 7 is greater than that of the first filter screen 6, which can filter impurities in the air more finely.

[0025] The compressed air enters the ventilation pipe 2 through the intake pipe 3. As the diameter of the ventilation pipe 2 gradually increases from the intake pipe 3 to the first filter screen 6, the air velocity decreases, causing the air to stay on the first filter screen 6 and the second filter screen 7 for a longer time, resulting in cleaner air filtration. After a period of time, the filters gradually become clogged, and the air velocity through the filters decreases, causing the speed of the first fan 10 and the second fan 14 to decrease, resulting in less airflow. This shortens the distance that the speed measuring slider 16 and the conductive plate 17 slide on the resistor plate 18, thus shortening the resistance wire connected to the circuit, reducing the resistance, increasing the current in the circuit, and strengthening the brightness of the warning light 5. The corresponding filter under the warning light 5 is then replaced.

[0026] A first locking hole 21 is fixedly connected to the outer wall of the first filter screen 6 near the second fan 14. A squeezing block 22 is fixedly connected to the side of the first locking hole 21 away from the wind speed test chamber 15. A second locking hole 23 is fixedly connected to the outer wall of the filter 1 near the squeezing block 22. A locking bolt 24 slides through the second locking hole 23 and extends into the first locking hole 21. A spring 25 is fixedly connected to the side of the second locking hole 23 away from the squeezing block 22 and is sleeved on the outer wall of the locking bolt 24.

[0027] Pull the latch 24 along the direction from the first latch 21 to the second latch 23 to disengage the latch 24 from the first latch 21. Pull the filter screen upward and replace and clean it. While putting the filter screen back along the first latch groove 4 from top to bottom, the squeezing block 22 squeezes the rounded end of the latch 24, causing the spring 25 to expand and contract, so that the first latch 21 and the latch 24 are engaged, and the filter screen replacement process is completed.

[0028] A second fixing block 26 is fixedly connected to the inner wall of the filter 1 near the air intake pipe 3, and a motor 27 is fixedly connected to the bottom of the speed measuring slider 16. A third fan 28 is fixedly connected to the output end of the motor 27.

[0029] The start motor 27 drives the third fan 28 to rotate and guide the air entering the ventilation pipe 2 through the air intake pipe 3, so as to avoid the air being too dispersed inside the filter 1 and wasting air. The filtered air is discharged through the air outlet pipe 20.

[0030] The conductive sheet 17 and the resistance plate 18 together form a sliding rheostat, which allows the conductive sheet 17 to slide on the resistance coil. The magnitude of the current is changed by the change in resistance. The two ends of the ventilation pipe 2 are connected through each other.

[0031] The implementation principle of a filtration device for an air compressor in this embodiment is as follows: the air outlet of the air compressor is connected to the air inlet pipe 3. The starting motor 27 drives the third fan 28 to rotate and slowly blow the air entering the ventilation pipe 2 through the air inlet pipe 3 toward the first filter screen 6. As the diameter of the ventilation pipe 2 gradually increases from the air inlet pipe 3 to the first filter screen 6, the fluid molecules have more space to diffuse and choose their flow path. The collisions and mutual interference between molecules are relatively reduced, making the overall flow of the fluid more gentle. Therefore, the air velocity is slower, and the air stays longer when passing through the first filter screen 6 and the second filter screen 7. This helps to capture and block more particulate matter in the air, thereby improving the filtration efficiency of the filter screen.

[0032] When the first filter screen 6 and the second filter screen 7 are clogged, the airflow through the filters slows down, causing the first fan 10 to rotate at a lower speed. Through the torque transmission of the first rotating shaft 9, the second bevel gear 12, and the rotating shaft 13, the second fan 14 rotates at the same frequency as the first fan 10, generating wind that pushes the speed measuring slider 16, causing the conductive plate 17 to move a shorter distance along the direction from the second fan 14 to the speed measuring slider 16 on the resistor plate 18. Furthermore, as the resistor plate 18 slides from bottom to top, the current flowing through the warning light 5 gradually decreases, thus reducing the current supplied to the warning light. The higher current of lamp 5 increases the brightness of warning lamp 5, indicating that the filter needs to be replaced. Pull the latch 24 along the direction from the first latch 21 to the second latch 23 to disengage the first latch 21 from the latch 24 and clean the first filter 6. After cleaning, put the filter back along the first slot 4 from top to bottom. At the same time, the squeezing block 22 squeezes the rounded end of the latch 24, causing the spring 25 to expand and then contract, so that the first latch 21 and the latch 24 are engaged, thus completing the cleaning and replacement of the filter. Then the filtered air is discharged and collected through the air outlet pipe 20.

[0033] After the first filter 6 and the second filter 7 are replaced, the airflow velocity through the filter increases, and the distance that the speed measuring slider 16 pushes and the conductive sheet 17 moves on the resistor plate 18 also increases. Therefore, the current flowing into the warning light 5 decreases, and the brightness of the corresponding warning light 5 weakens. The worker judges whether the corresponding filter needs to be replaced based on the brightness of the warning light 5 corresponding to each filter.

[0034] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A filtration device for an air compressor, characterized in that, The filter includes a filter (1), the inner wall of which is fixedly connected to a ventilation pipe (2). The outer walls of the filter (1) and the ventilation pipe (2) are respectively connected to an air inlet pipe (3). Two slots (4) are provided on the outer wall of the filter (1) near the air inlet pipe (3). The inner wall of the filter (1) is slidably contacted by a first filter screen (6) and a second filter screen (7) slidably connected to the two slots (4). A first fixing post (8) is fixedly connected to the inner wall of the filter (1) near the slots (4). The bottom end of the first fixing post (8) rotatably passes through a first... A rotating shaft (9) is provided, and a first fan (10) and a first bevel gear (11) are fixedly connected to both ends of the first rotating shaft (9). A wind speed testing chamber (15) is fixedly connected to the outer wall of the filter (1) away from the first rotating shaft (9). A rotating shaft (13) is fixedly passed through the outer wall of the filter (1) away from the first rotating shaft (9). The top end of the rotating shaft (13) extends into the interior of the wind speed testing chamber (15) and is fixedly connected to a second fan (14). A second bevel gear (12) that meshes with the first bevel gear (11) is fixedly connected to the bottom end of the rotating shaft (13).

2. A filtration device for an air compressor according to claim 1, characterized in that, The inner wall of the wind speed testing chamber (15) is slidably connected to a speed measuring slider (16) located directly above the second fan (14). A conductive sheet (17) is fixedly connected to the upper surface of the speed measuring slider (16). A resistance plate (18) fixedly connected to the inner wall of the wind speed testing chamber (15) is slidably connected to the side of the conductive sheet (17) away from the first fan (10). A warning light (5) is fixedly connected to the top of the wind speed testing chamber (15), and the warning light (5) is electrically connected to the conductive sheet (17) to form a speed measuring circuit. Ventilation openings (19) are provided on the symmetrical side of the filter (1).

3. A filtration device for an air compressor according to claim 1, characterized in that, The diameter of the ventilation pipe (2) gradually increases along the direction from the air inlet pipe (3) to the first filter screen (6), and the sieve hole density of the second filter screen (7) is greater than that of the first filter screen (6).

4. A filtration device for an air compressor according to claim 1, characterized in that, The first filter screen (6) has a first locking hole (21) fixedly connected to the outer wall of the side near the second fan (14). The first locking hole (21) is fixedly connected to a squeezing block (22) on the side away from the wind speed test chamber (15). The filter (1) has a second locking hole (23) fixedly connected to the outer wall of the side near the squeezing block (22). A latch (24) slides through the second locking hole (23) and extends into the first locking hole (21). A spring (25) is fixedly connected to the side of the second locking hole (23) away from the squeezing block (22) and sleeved on the outer wall of the latch (24).

5. A filtration device for an air compressor according to claim 1, characterized in that, The filter (1) has a second fixing block (26) fixedly connected to the inner wall of the side near the air inlet pipe (3), and a motor (27) is fixedly connected to the bottom of the speed measuring slider (16), and a third fan (28) is fixedly connected to the output end of the motor (27).

6. A filtration device for an air compressor according to claim 2, characterized in that, The conductive sheet (17) and the resistance plate (18) together form a sliding rheostat, which allows the conductive sheet (17) to slide on the resistance coil, changing the magnitude of the current by changing the resistance. The two ends of the ventilation pipe (2) are connected through each other.

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