Air dryer with filtering function

Abstract

The invention provides an air dryer with a filtering function, and belongs to the technical field of air dryers. Comprising an air dryer body, the top end of the air dryer body is sealed through a top cover, the top cover is sleeved with an air input pipe and an air output pipe, and the bottom end of the air input pipe extends into the air dryer body and is communicated with the position between two adapter pipes which are symmetrically distributed. According to the air dryer disclosed by the invention, the two groups of adapter pipes, the electric valves, the filtering cabins and the cleaning assemblies are arranged, so that air entering the air dryer body through the air input pipe for drying is provided with two channels for circulation; and the channel where the other group of filtering cabins are located is closed through the electric valve and is automatically cleaned, so that the air dryer with the filtering function can automatically clean the structures in the filtering cabins by virtue of the cleaning assembly under the condition that the air dryer is not stopped, and the working efficiency of the equipment is improved.

Description

Technical Field

[0001] The invention relates to the technical field of air dryers, and in particular to an air dryer with a filtering function. Background Art

[0002] An air dryer is an air drying device widely used in industries such as industry, food processing, and pharmaceutical manufacturing. It is mainly used to remove moisture from the air to meet the demand for dry air in different scenarios. At present, the common air dryers on the market are mainly divided into two categories: refrigeration type and adsorption type. The refrigeration dryer condenses water vapor into liquid water by lowering the air temperature, thereby achieving air drying; the adsorption dryer uses the characteristics of the adsorbent to adsorb water vapor in the air to achieve the purpose of drying.

[0003] Existing air dryers have achieved certain results in drying effects, but there are still some shortcomings in practical applications. First of all, traditional air dryers often only focus on the drying function of the air, but ignore the impact of impurities in the air on the drying effect and equipment life. These impurities will not only affect the performance of the dryer, but may also cause equipment blockage and increase maintenance costs. Even if some air dryers are equipped with corresponding filtering structures to separate impurities in the air, they are only simply filtered through the filter. While the impurity separation effect is poor, the filter needs to be frequently cleaned and replaced. The subsequent maintenance operations are cumbersome and the maintenance cost is high. In addition, the equipment cannot work normally during the cleaning process, affecting the working efficiency of the equipment. Therefore, the present application provides an air dryer with a filtering function to meet the needs. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an air dryer with a filtering function to solve the problems of poor filtering effect, high cleaning frequency of the filtering structure, cumbersome cleaning operation and inability of the equipment to work normally during the cleaning process.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] An air dryer with a filtering function comprises an air dryer body, the top of the air dryer body is closed by a top cover, an air input pipe and an air output pipe are sleeved on the top cover, the bottom end of the air input pipe extends to the interior of the air dryer body and is connected with two symmetrically distributed transfer pipes, an electric valve is sleeved on the outside of the transfer pipe, and a sealing cover is fixedly connected to the end of the transfer pipe, a filter cabin located below the sealing cover is arranged in the air dryer body, two groups of assembly frames arranged up and down are fixedly connected in the filter cabin, one end of the assembly frame is tilted downward, and a fixing frame is sleeved in the assembly frame; a first filter assembly is used for preliminary filtering of air input into the air dryer body, and the first filter assembly is connected to the fixing frame at the top; a second filter assembly is used for secondary filtering of air input into the air dryer body, and the second filter assembly is connected to the fixing frame at the bottom; a cleaning assembly is used for automatically cleaning the first filter assembly and the second filter assembly, and the cleaning assembly is connected to the filter cabin.

[0007] Optionally, an air drying system and a controller are provided in the air dryer body, the end of the filter output pipe is connected to the input end of the air drying system, an opening is provided on one side of the filter cabin, and a movable plate is provided at the opening.

[0008] Optionally, the first filter assembly includes a dust filter plate fixedly connected to the upper fixed frame and a first support plate, the dust filter plate is located above the first support plate, and the dust filter plate is provided with evenly distributed filter screens, a gap is provided between the first support plate and the filter screens, and the first support plate is provided with evenly distributed through openings.

[0009] Optionally, transfer channels corresponding to the positions of the filter screens are opened in the first support plate, and the through openings and the positions of the filter screens are staggered.

[0010] Optionally, the second filter assembly includes an oil mist filter plate fixedly connected to the fixing frame below and a second support plate, the second support plate is provided with evenly distributed air-permeable circular holes, the oil mist filter plate is made of hard cotton, and a wavy groove is provided on the top of the oil mist filter plate.

[0011] Optionally, the ends of the first support plate and the second support plate are fixedly connected with storage boxes, the storage box at the end of the first support plate is located below the transfer channel, and the storage box at the end of the second support plate is located below the lowest point of the wavy groove on the oil mist filter plate, and the bottom of the storage box is fixedly connected with an extension plate, and the end of the extension plate extends to the inner wall of the filter cabin.

[0012] Optionally, the storage box is provided with a closing plate on the outside, a paddle is fixedly connected to the closing plate, and a limiting rod is symmetrically installed on the closing plate, a limiting groove matching the shape of the limiting rod is opened in the storage box, and a spring is fixedly connected between the storage box and the limiting rod.

[0013] Optionally, a limiting plate is fixedly connected to one side of the top of the assembly frame close to the movable plate, the end of the limiting plate is bent toward the movable plate, and a weakening groove is provided at the connection between the limiting plate and the assembly frame, and a hook groove matching the shape of the end of the limiting plate is provided on the inner side wall of the movable plate.

[0014] Optionally, positioning blocks are symmetrically installed on the inner side of the fixed frame, a slot is provided on the positioning block close to the movable plate, a C-shaped pressure plate is fixedly connected to the side of the limit plate away from the movable plate, and a clamping strip matching the shape of the slot is provided at the bottom end of the pressure plate.

[0015] Optionally, the cleaning component includes four evenly distributed electric telescopic rods mounted on the outside of the filter cabin, the electric telescopic rods and the assembly frame are parallel to each other, the filter cabin is provided with a first movable frame and a second movable frame respectively located above the dust filter plate and the oil mist filter plate, the first movable frame and the second movable frame are fixedly connected to the outside with extrusion edges, the two electric telescopic rods form a group, one group of the electric telescopic rods is fixedly connected to the first movable frame, and the other group of the electric telescopic rods is fixedly connected to the second movable frame, a brush is provided at the bottom of the first movable frame, and a scraper matching the top shape of the oil mist filter plate is fixedly connected to the bottom of the second movable frame.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] In the above scheme, by setting two groups of transfer tubes and electric valves as well as filter cabins and cleaning components, the air that enters the air dryer body through the air input pipe for drying has two channels for circulation. When the air is filtered in the filter cabin of one group of channels, the channel where the filter cabin of the other group is located is closed by the electric valve and automatic cleaning is carried out. As a result, the air dryer with a filtering function can rely on the cleaning component to automatically clean the structure in the filter cabin without stopping the machine, thereby improving the working efficiency of the equipment.

[0018] By setting up the first filter component and the second filter component, the dust and oil mist in the air to be dried are separated step by step, thereby effectively reducing the dust and oil mist impurities in the air entering the equipment, avoiding the presence of impurities affecting the service life of the equipment, and also ensuring the drying effect of the equipment.

[0019] By providing the first movable frame and the second movable frame in the cleaning component and the storage box and the closing plate in the first filter component and the second filter component, the dust and oil cleaned from the dust filter plate and the oil mist filter plate by the cleaning component can be collected in the storage box for storage, thereby reducing the frequency of cleaning and maintenance by the staff, and they only need to clean the dust and oil stored in the storage box regularly.

[0020] By arranging the extrusion edges on the first movable frame and the second movable frame, when the electric telescopic rod works and drives the first movable frame and the second movable frame to move back and forth respectively above the dust filter plate and the oil mist filter plate, the closing plate is pushed open by relying on the extrusion edges on the first movable frame and the second movable frame to realize opening of the storage box, and the storage box is immediately closed after the first movable frame and the second movable frame are away from the storage box, so as to avoid the dust and oil previously stored in the filter cabin from escaping and causing pollution when the filter cabin is filtering the air, so that the cleaning component is associated with the structures of the first filter component and the second filter component, and the structure is ingenious and practical.

[0021] By providing the limit plate and the hook groove as well as the weakened groove and the pressure plate, when the fixed frame is assembled in the assembly frame, the movable plate can be closed by squeezing the limit plate so that the card strip on the pressure plate is embedded in the card groove on the weakened groove, thereby realizing the positioning of the fixed frame and ensuring the stability of the fixed frame during filtering and cleaning. Secondly, the limit plate can also cooperate with the hook groove to form a simple limit for the movable plate, which is convenient for the staff to open and close the movable plate, making the regular maintenance and cleaning operations of the structure in the filter cabin simple and convenient, and making the details of the entire technical solution more complete. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0023] Figure 1 It is a three-dimensional structural schematic diagram of an air dryer with filtering function;

[0024] Figure 2 It is a schematic diagram of the coordination structure between the air input pipe, the transfer pipe and the filter cabin;

[0025] Figure 3 It is a schematic diagram of the coordination structure of the filter cabin, the cover and the movable plate;

[0026] Figure 4 This is a schematic diagram of the internal structure of the filter cabin;

[0027] Figure 5 It is a schematic diagram of the three-dimensional structure after the dust filter plate is separated from the fixing frame;

[0028] Figure 6 for Figure 5 The enlarged structural diagram at A in the middle;

[0029] Figure 7 for Figure 5 The enlarged structural diagram at B in the middle;

[0030] Figure 8 for Figure 5 The enlarged structural diagram at C in the middle;

[0031] Fig. 9 It is a schematic diagram of the three-dimensional structure after the oil mist filter plate is separated from the fixing frame;

[0032] Fig.10 It is a schematic diagram of the matching structure between the limit plate, the hook groove and the positioning block;

[0033] Fig.11 is a schematic diagram of the matching structure between the first support plate and the storage box;

[0034] Fig.12 for Fig.11 The enlarged structural diagram at B in the middle;

[0035] Fig.13 It is a schematic diagram of the three-dimensional structure of the first movable frame and the second movable frame.

[0036] Reference numerals:

[0037] 1. Air dryer body; 2. Top cover; 3. Air input pipe; 4. Air output pipe; 5. Transfer pipe; 6. Electric valve; 7. Filter cabin; 8. Cover; 9. Movable plate; 10. Filter output pipe; 11. Electric telescopic rod; 12. Assembly frame; 13. Limit plate; 14. Hook groove; 15. Dust filter plate; 16. Oil mist filter plate; 17. First movable frame; 18. Second movable frame; 19. Filter screen; 20. Fixed frame; 21. First support plate; 22. Closing plate; 23. Positioning block; 24. Storage box; 25. Extension plate; 26. Card slot; 27. Limit rod; 28. Spring; 29. ​​Limit slot; 30. Scraper; 31. Second support plate; 32. Pick; 33. Weakened slot; 34. Press plate; 35. Card strip; 36. Transfer channel; 37. Through opening; 38. Brush; 39. Extrusion edge.

[0038] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0039] The following is a detailed description of an air dryer with a filtering function provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0040] It should be noted that the references to "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0041] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0042] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0043] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0044] like Figures 1 to 13As shown, an embodiment of the present invention provides an air dryer with a filtering function, comprising an air dryer body 1, the top of the air dryer body 1 is closed by a top cover 2, an air input pipe 3 and an air output pipe 4 are sleeved on the top cover 2, the bottom end of the air input pipe 3 extends to the inside of the air dryer body 1 and is connected to two symmetrically distributed transfer pipes 5, an electric valve 6 is sleeved on the outside of the transfer pipe 5, and a sealing cover 8 is fixedly connected to the end of the transfer pipe 5, a filter cabin 7 located below the sealing cover 8 is installed in the air dryer body 1, and the setting of the transfer pipe 5 enables the air input channel in the air dryer body 1 to have two In the process of automatically cleaning the related structure of one of the transfer tubes 5, the electric valve 6 can work and change the air input path, so that the air is passed into the air dryer body 1 from the other transfer tube 5 for drying, thereby realizing the automatic cleaning of the structure in the filter cabin 7 while maintaining the normal operation of the air dryer body 1, providing a good environment for the automatic cleaning of the structure in the filter cabin 7, and maintaining the normal operation of the air dryer body 1 during the cleaning process. Two sets of assembly frames 12 arranged up and down are fixedly connected in the filter cabin 7, one end of the assembly frame 12 is tilted downward, and a fixed The air drying system and the controller are arranged in the air dryer body 1. The end of the filter output pipe 10 is connected with the input end of the air drying system. An opening is provided on one side of the filter cabin 7, and a movable plate 9 is provided at the opening. The air drying system can dry the air output through the filter output pipe 10 in the air dryer body 1. The principle and use of the air drying system are the same as those of the prior art, and will not be described in detail here. The setting of the assembly frame 12 is to provide an assembly space for the relevant filter structure of the filter cabin 7, and its inclined setting state makes the filter structure also in an inclined state. state, and then in the subsequent self-cleaning process, the cleaned dust and oil accumulation can be easily collected, the filter cabin 7 and the movable plate 9 are movably connected by a rotating rod, so that the movable plate 9 can be opened at the side of the filter cabin 7 to expose the structure in the filter cabin 7, which is convenient for subsequent inspection and maintenance of the structure in the filter cabin 7, and the movable plate 9 closes the opening on the side of the filter cabin 7 during the filtering work of the filter cabin 7 to ensure the sealing effect of the filter cabin 7, so that the air passing through the filter cabin 7 is affected by the filtering structure, and the dust and oil mist impurities in the air are separated, so as to ensure the drying effect and service life of the equipment.

[0045] The first filter assembly is used for preliminary filtering of the air input into the air dryer body 1. The first filter assembly is connected to the upper fixing frame 20. The setting of the first filter assembly can separate most of the dust and impurities in the air passing through the first filter assembly, so as to avoid the accumulation of dust and impurities in the pipeline of the equipment, which affects the service life of the equipment, and at the same time can also reduce the filtering burden of the subsequent filtering structure; the second filter assembly is used for secondary filtering of the air input into the air dryer body 1. The second filter assembly is connected to the lower fixing frame 20. The second filter assembly can separate the oil mist in the passing air, further reduce the impurities in the air to be dried, and avoid the oil mist adhering to the inner wall of the pipeline of the equipment during the drying process to form oily impurities and affect the drying effect of the equipment; the cleaning assembly is used for automatically cleaning the first filter assembly and the second filter assembly. The cleaning assembly is connected to the filter cabin 7. When the cleaning assembly is working, it can clean the first filter assembly and the second filter assembly at the same time, and store the dust and oil accumulated in the filtering process of the two together to ensure the subsequent filtering effect, reduce the frequency of manual cleaning and maintenance, and reduce the cleaning and maintenance costs of the equipment.

[0046] In this embodiment, if Figures 4 to 6 as well as Fig.11As shown, the first filter assembly includes a dust filter plate 15 and a first support plate 21 fixedly connected to the upper fixing frame 20, the dust filter plate 15 is located above the first support plate 21, and the dust filter plate 15 is provided with uniformly distributed filter screens 19, a gap is provided between the first support plate 21 and the filter screen 19, and the first support plate 21 is provided with uniformly distributed through openings 37, and the first support plate 21 is provided with transfer channels 36 corresponding to the positions of the filter screens 19 one by one, and the through openings 37 and the positions of the filter screens 19 are staggered with each other, and the staggered positional relationship between the through openings 37 and the filter screen 19 can prevent dust falling from the filter screen 19 during cleaning from passing through the through openings 37 and polluting other structures in the filter cabin 7, there is no fixed connection relationship between the fixing frame 20 and the assembly frame 12, the dust filter plate 15 and the first support plate 21 are both fixedly connected to the fixing frame 20, and are an integrated structure with the fixing frame 20 The filter screen 19 on the dust filter plate 15 and the through opening 37 on the first support plate 21 as well as the gap between the dust filter plate 15 and the first support plate 21 provide a channel for the circulation of air, ensuring that the air can pass through the first filter assembly normally while limiting the passage path of the air, so that the air must pass through the filter screen 19, and then pass through the filter screen 19 to separate the dust in the air, and make the separated dust accumulate outside the filter screen 19, waiting for subsequent automatic cleaning. In the subsequent automatic cleaning process, part of the dust swept from the filter screen 19 will pass through the filter screen 19 and fall, and the transfer channel 36 corresponding to the position of the filter screen 19 can receive this part of the dust, and rely on the tilted state of the assembly frame 12 and the fixing frame 20 to accumulate and store this part of the dust, so as to avoid the dust falling during the cleaning process, and then affect the normal operation of other structures, and ensure that the dust is collected in the area where the first filter assembly is located.

[0047] In this embodiment, if Figure 4 and Figure 5 as well as Fig. 9As shown, the second filter assembly includes an oil mist filter plate 16 fixedly connected to the fixing frame 20 below and a second support plate 31. The second support plate 31 is provided with evenly distributed air holes. The oil mist filter plate 16 is made of hard cotton, and a wave-shaped groove is provided on the top of the oil mist filter plate 16. The hard cotton material can ensure the basic shape of the oil mist filter plate 16 and has good air passing capacity, which can ensure that the air passes through the oil mist filter plate 16 and the air permeable holes on the second support plate 31. Therefore, it can effectively keep the air passing. The oil mist in the air is separated and made to adhere to the top surface of the oil mist filter plate 16. The wavy groove on the top of the oil mist filter plate 16 can increase the surface area of ​​the top of the oil mist filter plate 16, thereby increasing the contact area between the oil mist filter plate 16 and the passing air, and enhancing the separation effect of the oil mist filter plate 16 on the oil mist in the air. The ends of the first support plate 21 and the second support plate 31 are fixedly connected with a storage box 24. The storage box 24 at the end of the first support plate 21 is located below the transfer channel 36, and the storage box 24 at the end of the second support plate 31 is located above the oil mist filter plate 16. Below the lowest point of the wavy groove on the filter plate 16, an extension plate 25 is fixedly connected to the bottom of the storage box 24, and the end of the extension plate 25 extends to the inner wall of the filter cabin 7. The storage box 24 is used to store the accumulated dust and oil mist generated by the first filter assembly and the second filter assembly during the automatic cleaning process. In order to ensure the dust and oil collection effect, the storage box 24 corresponding to the dust filter plate 15 is arranged below the transfer channel 36 to ensure that the dust swept off the dust filter plate 15 and the dust collected by the transfer channel 36 can finally enter The oil is stored in the storage box 24, and the storage box 24 corresponding to the oil mist filter plate 16 is set below the lowest point of the wavy groove on the oil mist filter plate 16 to ensure that the oil scraped off the oil mist filter plate 16 can fall into the storage box 24 for temporary storage. The card slot 26 at the bottom of the storage box 24 closes the space between the storage box 24 and the inner wall of the filter cabin 7, so as to limit the flow path of air in the filter cabin 7, and ensure that after the air enters the filter cabin 7, it must be filtered and separated twice by the first filter component and the second filter component to ensure the subsequent air drying effect.

[0048] In this embodiment, if Figures 4 to 12As shown, the storage box 24 is provided with a closing plate 22 on the outside, a paddle 32 is fixedly connected to the closing plate 22, and a limiting rod 27 is symmetrically installed on the closing plate 22. A limiting groove 29 that matches the shape of the limiting rod 27 is opened in the storage box 24, and a spring 28 is fixedly connected between the storage box 24 and the limiting rod 27. The top of the storage box 24 is an opening, through which the dust and oil generated by the dust filter plate 15 and the oil mist filter plate 16 during the automatic cleaning process are received and stored. The opening is closed by the closing plate 22, and the closing plate 22 and the storage box 24 are associated and connected by the limiting rod 27 and the limiting groove 29. The storage box 24 is thickened on both sides close to the fixing frame 20 to provide space for the opening of the limiting groove 29. In a normal state, under the elastic force of the spring 28, the limiting rod 27 is completely embedded in the limiting groove 29, and the closing plate 22 also The opening of the storage box 24 is closed to ensure the storage effect of the storage box 24 on dust and oil, and to prevent the stored oil and dust from escaping when air passes through the filter cabin 7. When the paddle 32 is manually pushed or squeezed by other structures to move it toward the area where the extension plate 25 is located, the paddle 32 pulls the closing plate 22 to move, and at the same time makes the limit rod 27 slide in the limit groove 29 and compress the spring 28, so as to open the opening at the top of the storage box 24, so as to facilitate the access of dust or oil and manual cleaning after the fixing frame 20 and the storage box 24 are taken out from the assembly frame 12. After the external force is removed, the spring 28 pulls the limit rod 27 and the closing plate 22 to reset under the action of its own elastic force, and closes the storage box 24 again to prevent the circulating air from bringing out the dust and oil in the storage box 24 when the filter cabin 7 is filtering the air.

[0049] In this embodiment, if Figures 4 to 10As shown, a limiting plate 13 is fixedly connected to one side of the top of the assembly frame 12 near the movable plate 9, the end of the limiting plate 13 is bent toward the movable plate 9, and a weakening groove 33 is provided at the connection between the limiting plate 13 and the assembly frame 12, and a hook groove 14 adapted to the shape of the end of the limiting plate 13 is provided on the inner side wall of the movable plate 9, and a positioning block 23 is symmetrically installed on the inner side of the fixed frame 20, and a card slot 26 is provided on the positioning block 23 near the movable plate 9, and a C-shaped pressing plate 34 is fixedly connected to the side of the limiting plate 13 away from the movable plate 9. The bottom end of the pressure plate 34 is provided with a card strip 35 that matches the shape of the card slot 26. The opening of the weakened slot 33 makes the thickness of the limit plate 13 at the weakened slot 33 thinner and weaker. After being acted upon by an external force, it is more likely to deform. The setting of the limit plate 13 has two functions. On the one hand, the bending of the end of the limit plate 13 enables the end of the limit plate 13 to be embedded in the hook slot 14 on the movable plate 9 when the movable plate 9 is closed outside the filter cabin 7, thereby forming a preliminary limit fixation of the closed state of the movable plate 9. Although the movable plate 9 is not locked, However, the closed state of the movable plate 9 is maintained, which is convenient for the staff to perform the closing operation on the movable plate 9. The locking of the movable plate 9 is achieved by the sleeve arrangement between the filter cabin 7 and the cover 8. After the movable plate 9 is closed, the cover 8 is sleeved on the top of the filter cabin 7 and the movable plate 9, so that the interior of the filter cabin 7 forms a closed space. On the other hand, the limit plate 13 is squeezed by the movable plate 9 after the movable plate 9 is closed, and then the bottom end of the pressure plate 34 is driven to be close to the outside of the positioning block 23, so that the card strip 35 It is embedded in the card slot 26 on the positioning block 23 to strengthen the fixing effect of the fixing frame 20 in the assembly frame 12, thereby maintaining the stability of the dust filter plate 15 and the oil mist filter plate 16 during operation and automatic cleaning. When it is necessary to disassemble the fixing frame 20 in the assembly frame 12, after opening the movable plate 9, the limit plate 13 can also be moved to drive the pressure plate 34 away from the positioning block 23, and the card strip 35 can be withdrawn from the card slot 26 to release the fixing state of the fixing frame 20. The operation is simple and convenient, and it is easy for the staff to disassemble and maintain the fixing frame 20.

[0050] In this embodiment, if Figures 2 to 5 as well as Fig. 9 and Fig.13As shown, the cleaning assembly includes four evenly distributed electric telescopic rods 11 sleeved on the outside of the filter cabin 7, the electric telescopic rods 11 and the assembly frame 12 are parallel to each other, the filter cabin 7 is sleeved with a first movable frame 17 and a second movable frame 18 respectively located above the dust filter plate 15 and the oil mist filter plate 16, the first movable frame 17 and the second movable frame 18 are fixedly connected to the outside with an extrusion edge 39, two electric telescopic rods 11 form a group, one group of electric telescopic rods 11 is fixedly connected to the first movable frame 17, and the other group of electric telescopic rods 11 is fixedly connected to the second movable frame 18, and the electric telescopic rods 11 and the electric valve 6 are both connected to the air dryer The controller in the body 1 is electrically connected. The principles and working methods of the electric valve 6, the electric telescopic rod 11 and the controller in the present application are the same as those in the prior art, and will not be described in detail here. A brush 38 is provided at the bottom of the first movable frame 17, and a scraper 30 adapted to the top shape of the oil mist filter plate 16 is fixedly connected to the bottom of the second movable frame 18. The setting of the cleaning component can be started when the filter cabin 7 in which it is located does not perform air filtering work. When the electric valve 6 on the same transfer tube 5 is closed, there is no air circulation in the filter cabin 7 at the end of the transfer tube 5. At this time, the electric telescopic rod 11 in the filter cabin 7 works and repeatedly performs telescopic activities. , and then the electric telescopic rod 11 drives the first movable frame 17 and the second movable frame 18 to reciprocate above the dust filter plate 15 and the oil mist filter plate 16 respectively. During the movement of the first movable frame 17 and the second movable frame 18, the first movable frame 17 can drive the brush 38 to clean the dust accumulated on the dust filter plate 15, and push the cleaned dust or rely on the guidance of the transfer channel 36 to be stored in the storage box 24, and the second movable frame 18 drives the scraper 30 to scrape the upper surface of the oil mist filter plate 16, scrape off the oil accumulated in the wavy groove on the oil mist filter plate 16, and push it to the position corresponding to the oil mist filter plate 16 The storage box 24 is stored in the storage box 24. Secondly, when the first movable frame 17 and the second movable frame 18 move closer to the storage box 24, the extrusion edge 39 is driven to approach the paddle 32 on the closing plate 22, and the extrusion edge 39 pushes the paddle 32, and then drives the closing plate 22 to move, and the opening at the top of the storage box 24 is opened, so that the cleaned dust and oil can smoothly enter the storage box 24 for storage. After the first movable frame 17 and the second movable frame 18 are away from the paddle 32, the spring 28 pulls the limit rod 27 and the closing plate 22 to reset under the action of its own elastic force, and the storage box 24 is closed again to seal the cleaned dust and oil.

[0051] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0052] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An air dryer with filtering function, characterized in that: It comprises an air dryer body, the top of which is closed by a top cover, an air input pipe and an air output pipe are sleeved on the top cover, the bottom end of the air input pipe extends to the interior of the air dryer body and is connected with two symmetrically distributed transfer pipes, an electric valve is sleeved on the outside of the transfer pipe, and a sealing cover is fixedly connected to the end of the transfer pipe, a filter cabin located below the sealing cover is installed in the air dryer body, two groups of assembly frames arranged up and down are fixedly connected in the filter cabin, one end of the assembly frame is tilted downward, and a fixing frame is sleeved in the assembly frame; A first filter assembly, used for preliminarily filtering the air input into the air dryer body, the first filter assembly being connected to the fixing frame located above; A second filter assembly, used for secondary filtering of the air input into the air dryer body, the second filter assembly being connected to the fixing frame located below; A cleaning component is used for automatically cleaning the first filter component and the second filter component, and the cleaning component is connected to the filter cabin.

2. The air dryer with filtering function according to claim 1, characterized in that: The air dryer body is provided with an air drying system and a controller. The end of the filter output pipe is connected with the input end of the air drying system. An opening is provided on one side of the filter cabin, and a movable plate is provided at the opening.

3. The air dryer with filtering function according to claim 2, characterized in that: The first filter assembly includes a dust filter plate fixedly connected to the upper fixing frame and a first support plate, the dust filter plate is located above the first support plate, and a uniformly distributed filter screen is arranged in the dust filter plate, a gap is arranged between the first support plate and the filter screen, and the first support plate is provided with uniformly distributed through openings.

4. The air dryer with filtering function according to claim 3, characterized in that: The first support plate is provided with transfer channels corresponding to the positions of the filter screens one by one, and the through openings and the positions of the filter screens are staggered with each other.

5. The air dryer with filtering function according to claim 4, characterized in that: The second filter assembly includes an oil mist filter plate fixedly connected to the fixing frame below and a second support plate, the second support plate is provided with evenly distributed air-permeable circular holes, the oil mist filter plate is made of hard cotton, and a wavy groove is provided on the top of the oil mist filter plate.

6. The air dryer with filtering function according to claim 5, characterized in that: The ends of the first support plate and the second support plate are both fixedly connected with storage boxes, the storage box at the end of the first support plate is located below the transfer channel, and the storage box at the end of the second support plate is located below the lowest point of the wavy groove on the oil mist filter plate, and the bottom of the storage box is fixedly connected with an extension plate, and the end of the extension plate extends to the inner wall of the filter cabin.

7. The air dryer with filtering function according to claim 6, characterized in that: The storage box is provided with a closing plate on the outside, a paddle is fixedly connected to the closing plate, and a limiting rod is symmetrically installed on the closing plate. A limiting groove matching the shape of the limiting rod is opened in the storage box, and a spring is fixedly connected between the storage box and the limiting rod.

8. The air dryer with filtering function according to claim 2, characterized in that: A limiting plate is fixedly connected to one side of the top of the assembly frame close to the movable plate, the end of the limiting plate is bent toward the movable plate, and a weakening groove is provided at the connection between the limiting plate and the assembly frame, and a hook groove matching the shape of the end of the limiting plate is provided on the inner side wall of the movable plate.

9. The air dryer with filtering function according to claim 8, characterized in that: Positioning blocks are symmetrically installed on the inner side of the fixed frame, and a slot is provided on the positioning block close to the movable plate. A C-shaped pressure plate is fixedly connected to the side of the limit plate away from the movable plate, and a clamping strip matching the shape of the slot is provided at the bottom end of the pressure plate.

10. The air dryer with filtering function according to claim 6, characterized in that: The cleaning component includes four evenly distributed electric telescopic rods sleeved on the outside of the filter cabin, the electric telescopic rods and the assembly frame are parallel to each other, the filter cabin is sleeved with a first movable frame and a second movable frame respectively located above the dust filter plate and the oil mist filter plate, the first movable frame and the second movable frame are fixedly connected to the outside with extrusion edges, the two electric telescopic rods form a group, one group of the electric telescopic rods is fixedly connected to the first movable frame, and the other group of the electric telescopic rods is fixedly connected to the second movable frame, a brush is provided at the bottom of the first movable frame, and a scraper adapted to the top shape of the oil mist filter plate is fixedly connected to the bottom of the second movable frame.

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