Compressed air filtering device

Abstract

The utility model discloses a compressed air filtering device, which relates to the technical field of air filtering equipment, and comprises a fixed cylinder, an upper seat and a lower seat are respectively arranged at two ends of the fixed cylinder, an inner filter screen and an outer filter screen are arranged in the fixed cylinder, the inner filter screen and the outer filter screen are respectively of a cylindrical structure, and the upper seat and the lower seat are arranged on the fixed cylinder. The inner filter screen is arranged in the outer filter screen, a plurality of exhaust grooves are formed in the middle of the lower seat in a penetrating mode, and the exhaust grooves are formed between the inner filter screen and the outer filter screen. According to the utility model, the fixed cylinder is arranged, and the inner filter screen and the outer filter screen are arranged in the fixed cylinder, so that when compressed air is filtered, the compressed air can respectively penetrate through the filter screens from the inside of the inner filter screen and the outside of the outer filter screen to be filtered, and when the air is filtered only through one filter screen, the air can reversely wash the other filter screen; therefore, the effect of automatically cleaning the filter screen without shutdown can be achieved so as to ensure that the production of the blow molding barrel is not influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of air filtering equipment, in particular to a compressed air filtering device. Background Art

[0002] Compressed air is an important power source. It is the main power source in the blow molding process of blow molding barrels. Air is compressible. The air that has been reduced in volume and increased in pressure by the air compressor is called compressed air. However, it is not ideal that the compressed air contains a considerable amount of impurities, mainly solid particles. The impurities will affect the smoothness of the surface of the blow molding barrel product during the blow molding barrel processing. Therefore, it is necessary to filter the compressed air before using it. In the prior art, a filtering device is used to filter the compressed air.

[0003] For example, a compressed air dust removal and filtering device with publication number CN207950970U includes a container body, a partition plate disposed in the middle of the container body, a first filter element disposed on the left side of the partition plate, and a second filter element disposed on the right side of the partition plate, wherein the partition plate is provided with a through hole on the periphery, the first filter element includes a first filter cartridge and a first filter body filled in the first filter cartridge, the first filter body is a curled body formed by a cotton fiber net, the second filter element includes a second filter cartridge, a sealing plate sealed at both ends of the second filter cartridge, a mesh tube inserted in the second filter cartridge, and a second filter body filled in the second filter cartridge and located on the periphery of the mesh tube, the second filter cartridge is a mesh body, the inner hole of the mesh tube is opposite to the outlet pipe, and openings are provided on each sealing plate corresponding to the mesh tube, and the second filter body is two or more of natural fiber, chemical fiber, oil-absorbing polymer and water-absorbing polymer. The compressed air dust removal and filtering device allows the compressed air to pass through the first filter element and the second filter element to filter dust, water, oil, etc. in the compressed air.

[0004] The above technical solution has some problems in practical application. This technical solution processes compressed air through a filter. However, the filter will be clogged with impurities during long-term use and needs to be cleaned regularly. Cleaning the filter requires shutting down the device, which will have a certain impact on the production efficiency of the blow molding barrel.

[0005] Therefore, it is necessary to invent a compressed air filtering device to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a compressed air filtering device to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a compressed air filtering device, comprising a fixed cylinder, an upper seat and a lower seat are respectively arranged at both ends of the fixed cylinder, an inner filter screen and an outer filter screen are arranged inside the fixed cylinder, the inner filter screen and the outer filter screen are both arranged as a cylindrical structure, and the inner filter screen is arranged inside the outer filter screen, a plurality of exhaust grooves are arranged through the middle of the lower seat, and the exhaust grooves are arranged between the inner filter screen and the outer filter screen, an air intake groove is arranged through the middle of the upper seat, and the air intake groove is arranged Inside the inner filter, an air guide pipe is fixedly installed at the notch of the air inlet groove, an air inlet pipe is penetrated through the middle of the top end of the air guide pipe, a plurality of connecting pipes are arranged around both sides of the air inlet pipe, the bottom end of the connecting pipe extends to the bottom of the upper seat, and the bottom end of the connecting pipe is arranged between the fixed cylinder and the outer filter, a slider is arranged inside the air inlet pipe, an air guide groove is opened in the middle of the top end of the slider, a plurality of connecting grooves are arranged around the bottom end of the inner side wall of the air guide groove, and the connecting grooves correspond to the connecting pipes.

[0008] Preferably, the bottom end of the slider is arranged inside the air duct, an electric push rod is fixedly arranged in the middle of the bottom end of the slider, and the electric push rod is fixedly arranged at the bottom end of the air duct.

[0009] Preferably, the outer side walls of the upper seat and the lower seat are surrounded by a plurality of connecting ears, and connecting bolts are penetrated inside the connecting ears.

[0010] Preferably, a mounting seat is fixedly provided in the middle of the connecting bolt, and a mounting hole is penetrated through the outer side wall of the mounting seat.

[0011] Preferably, a conduit is fixedly provided at the top end of the air inlet pipe.

[0012] Preferably, an exhaust pipe is fixedly arranged at the notch of the exhaust groove, and one end of the exhaust pipe is arranged as a trumpet-shaped structure.

[0013] Technical effects and advantages of the utility model:

[0014] 1. The utility model sets a fixed cylinder, and an inner filter and an outer filter are arranged inside the fixed cylinder. When the compressed air is filtered, the compressed air can be filtered through the filter from the inside of the inner filter and the outside of the outer filter respectively. When the air is filtered through only one filter, the air can reversely flush the other filter, so as to achieve the effect of automatically cleaning the filter without stopping the machine, so as to ensure that the production of the blow molding barrel is not affected;

[0015] 2. The utility model sets an upper seat and a lower seat, which can guide the air. An air intake pipe is set at the top of the upper seat, and a slider that can slide up and down is set inside the air intake pipe. By adjusting the position of the slider, the air flow direction can be switched, thereby realizing the switching of automatic cleaning of the inner filter and the outer filter, so that the device can realize automatic cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic cross-sectional view of the overall structure of the utility model.

[0018] Figure 3 It is a schematic cross-sectional view of the overall structure of the utility model.

[0019] Figure 4 It is a schematic cross-sectional view of the upper seat structure of the utility model.

[0020] Figure 5 It is a schematic diagram of the structure of the inner filter and the outer filter of the utility model.

[0021] In the figure: 1. fixing cylinder; 2. upper seat; 3. lower seat; 4. inner filter; 5. outer filter; 6. exhaust groove; 7. air intake groove; 8. air guide pipe; 9. air intake pipe; 10. connecting pipe; 11. slider; 12. air guide groove; 13. connecting groove; 14. electric push rod; 15. connecting ear; 16. connecting bolt; 17. mounting seat; 18. conduit; 19. exhaust pipe. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The utility model provides Figure 1-5 A compressed air filtering device shown in the figure comprises a fixed cylinder 1, an upper seat 2 and a lower seat 3 are respectively arranged at both ends of the fixed cylinder 1, an inner filter screen 4 and an outer filter screen 5 are arranged inside the fixed cylinder 1, the inner filter screen 4 and the outer filter screen 5 are both arranged in a cylindrical structure, and the inner filter screen 4 is arranged inside the outer filter screen 5, and the inner filter screen 4 and the outer filter screen 5 can both filter the compressed air;

[0024] Specifically, a plurality of exhaust grooves 6 are provided through the middle of the lower seat 3, and the exhaust grooves 6 are provided between the inner filter screen 4 and the outer filter screen 5. An air inlet groove 7 is provided through the middle of the upper seat 2, and the air inlet groove 7 is provided inside the inner filter screen 4. An air guide pipe 8 is fixedly provided at the notch of the air inlet groove 7, and an air inlet pipe 9 is provided through the middle of the top of the air guide pipe 8. A plurality of connecting pipes 10 are provided around both sides of the air inlet pipe 9. The bottom ends of the connecting pipes 10 extend to the bottom of the upper seat 2, and the bottom ends of the connecting pipes 10 are provided between the fixed cylinder 1 and the outer filter screen 5. The compressed air can pass through the outer filter screen 5 from the outside to the inside and pass through the inner filter screen 4 from the inside to the outside, so as to filter the compressed air.

[0025] More specifically, a slider 11 is provided inside the air intake pipe 9, an air guide groove 12 is provided in the middle of the top of the slider 11, a plurality of connecting grooves 13 are provided around the bottom of the inner wall of the air guide groove 12, and the connecting grooves 13 correspond to the connecting pipe 10, the bottom end of the slider 11 is provided inside the air guide pipe 8, an electric push rod 14 is fixedly provided in the middle of the bottom end of the slider 11, and the electric push rod 14 is fixedly provided at the bottom end of the air guide pipe 8, and the electric push rod 14 is used to adjust the position of the slider 11 to adjust the gas flow trajectory;

[0026] In addition, the outer walls of the upper seat 2 and the lower seat 3 are surrounded by a plurality of connecting ears 15, the interior of the connecting ears 15 is penetrated by connecting bolts 16, a mounting seat 17 is fixedly provided in the middle of the connecting bolts 16, and the outer wall of the mounting seat 17 is penetrated by mounting holes. The setting of the mounting seat 17 facilitates the installation and fixation of the device, a conduit 18 is fixedly provided at the top of the air inlet pipe 9, an exhaust pipe 19 is fixedly provided at the notch of the exhaust groove 6, and one end of the exhaust pipe 19 is set as a trumpet-shaped structure. The exhaust pipe 19 can realize the discharge of filtered compressed air, and it can be connected to the blow molding machine to facilitate the production of blow molding barrels.

[0027] Working principle of this utility model:

[0028] When the device is in use, the air intake pipe 9 is connected to the compressor through the conduit 18, and the compressed air can enter the air intake pipe 9 through the conduit 18, and then enter the fixed cylinder 1 through the air intake pipe 9, and then the compressed air is filtered in the fixed cylinder 1;

[0029] When the slider 11 is located above the inside of the air inlet pipe 9, the connecting groove 13 on the outside of the slider 11 coincides with one end of the connecting pipe 10. At this time, the compressed air passes through the air guide groove 12, the connecting groove 13 and the connecting pipe 10 to move between the fixed cylinder 1 and the outer filter 5. After passing through the outer filter 5, the compressed air passes through the exhaust groove 6 and the exhaust pipe 19 to be discharged from the device. In this process, the compressed air can reversely pass through the inner filter 4 to realize the recoil cleaning of the inner filter 4.

[0030] When the slider 11 is located below the inside of the intake pipe 9, the connecting groove 13 on the outside of the slider 11 is misaligned with one end of the connecting pipe 10. At this time, the compressed air passes through the air guide groove 12, the connecting groove 13, the air guide pipe 8 and the intake groove 7 to enter the inside of the inner filter 4, and then passes through the inner filter 4 and then passes through the exhaust groove 6 and the exhaust pipe 19 to be discharged from the device. During this process, the compressed air can pass through the outer filter 5 in the reverse direction to achieve recoil cleaning of the outer filter 5.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A compressed air filtering device, comprising a fixed cylinder (1), characterized in that: An upper seat (2) and a lower seat (3) are respectively provided at both ends of the fixed cylinder (1); an inner filter screen (4) and an outer filter screen (5) are provided inside the fixed cylinder (1); the inner filter screen (4) and the outer filter screen (5) are both provided as cylindrical structures, and the inner filter screen (4) is provided inside the outer filter screen (5); a plurality of exhaust grooves (6) are provided through the middle of the lower seat (3), and the exhaust grooves (6) are provided between the inner filter screen (4) and the outer filter screen (5); an air intake groove (7) is provided through the middle of the upper seat (2), and the air intake groove (7) is provided inside the inner filter screen (4); a notch of the air intake groove (7) is fixedly provided An air guide pipe (8) is provided, an air intake pipe (9) is provided through the middle of the top end of the air guide pipe (8), a plurality of connecting pipes (10) are provided around both sides of the air intake pipe (9), the bottom end of the connecting pipe (10) extends to the bottom of the upper seat (2), and the bottom end of the connecting pipe (10) is provided between the fixed cylinder (1) and the outer filter screen (5), a slider (11) is provided inside the air intake pipe (9), an air guide groove (12) is provided in the middle of the top end of the slider (11), a plurality of connecting grooves (13) are provided around the bottom end of the inner side wall of the air guide groove (12), and the connecting grooves (13) correspond to the connecting pipe (10).

2. A compressed air filtering device according to claim 1, characterized in that: The bottom end of the slider (11) is arranged inside the air duct (8), an electric push rod (14) is fixedly arranged in the middle of the bottom end of the slider (11), and the electric push rod (14) is fixedly arranged at the bottom end of the air duct (8).

3. A compressed air filtering device according to claim 2, characterized in that: The outer side walls of the upper seat (2) and the lower seat (3) are surrounded by a plurality of connecting ears (15), and connecting bolts (16) are provided through the interior of the connecting ears (15).

4. A compressed air filtering device according to claim 3, characterized in that: A mounting seat (17) is fixedly provided in the middle of the connecting bolt (16), and a mounting hole is penetrated through the outer wall of the mounting seat (17).

5. A compressed air filtering device according to claim 4, characterized in that: A guide tube (18) is fixedly arranged at the top end of the air inlet pipe (9).

6. A compressed air filtering device according to claim 5, characterized in that: An exhaust pipe (19) is fixedly arranged at the notch of the exhaust groove (6), and one end of the exhaust pipe (19) is arranged as a trumpet-shaped structure.

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