Air compressor filter element assembly convenient to maintain

Abstract

The utility model discloses an air compressor filter element assembly convenient to maintain, and relates to the technical field of air compressor filter elements, the air compressor filter element assembly convenient to maintain comprises a mounting frame, a permanent magnet motor is fixedly connected to the left portion of an inner cavity of the mounting frame, a pipe body is fixedly connected to the output end of the permanent magnet motor, and a support is fixedly connected to the bottom of the pipe body; the bottom of the support is fixedly connected with the bottom of the inner cavity of the mounting frame, and a sealing cover is embedded in the top of the pipe body. Through cooperation of the sealing cover, the mechanical sealing strip, the insertion rod, the clamping block, the threaded rod and the pressing plate, the sealing cover is pressed downwards, so that the sealing groove is completely embedded with the outer wall of the mechanical sealing strip, meanwhile, the insertion rod and the clamping block are clamped, then the threaded rod is rotated, the pressing plate is rotated to the position over the arc-shaped clamping groove, then the pressing plate is fixed, and the mechanical sealing strip is sealed. And then the threaded rod is rotated, so that the pressing plate is clamped with the arc-shaped clamping groove, and the sealing performance between the sealing cover and the pipe body is ensured.

Description

Technical Field

[0001] This utility model relates to the field of air compressor filter technology, specifically an air compressor filter assembly that is easy to maintain. Background Technology

[0002] Screw air compressors are mostly composed of components such as an air compressor, a pipe body, and an air filter. The air filter is the component that removes dust and dirt from the air. The filtered clean air enters the compression chamber of the screw rotor and is compressed. During the delivery process, the volume continuously decreases, the gas is continuously compressed, the pressure increases, and the temperature rises. At the same time, lubricating oil, which is atomized due to the air pressure difference, is sprayed into the compression chamber, thereby achieving the functions of compression, temperature reduction, sealing, and lubrication. It has high working efficiency and low maintenance costs. However, when it is necessary to maintain the filter element of the screw air compressor, it is relatively inconvenient and reduces working efficiency.

[0003] For example, the patent with authorization announcement number CN221442841U describes an easy-to-install screw air compressor filter element structure, including a housing, a permanent magnet motor fixedly installed at one end of the housing, a bracket fixedly installed at one end of the housing, and a pipe movably installed at one end of the bracket, a movable plate fixedly installed at one end of the connecting block, and a discharge pipe fixedly installed at one end of the movable plate, and a limiting component for limiting the movable plate at one end of the fixed plate, which relates to the field of filter element structure. This utility model, by incorporating components such as a pressure plate, a fixing block, a movable plate, a second connecting rod, a second spring, and a handle, allows workers to easily install the filter element by simply aligning the movable plate with the filter element tube and pressing it down. The pressure plate then restricts and fixes the movable plate, ensuring that the position of the movable plate and the filter element will not move during use. Simultaneously, the movable plate compresses the sealing gasket when moving, ensuring the airtightness of the utility model. However, this method also presents some problems and drawbacks. When fixing the filter element assembly after maintenance, multiple springs are used for compression, and then the pressure plate, in conjunction with the springs, installs and fixes the filter element assembly. This fixing method has poor stability. The vibration generated by the air compressor during operation has a significant impact on the springs. Furthermore, when the springs remain in one state for a long time, their rebound force and elasticity decrease, leading to a decrease in stability and a reduction in the air compressor's sealing performance.

[0004] Based on this, an easy-to-maintain air compressor filter element assembly is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this invention is to provide an air compressor filter element assembly that is easy to maintain, so as to solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An easy-to-maintain air compressor filter element assembly includes a mounting frame. A permanent magnet motor is fixedly connected to the left side of the inner cavity of the mounting frame. A tube is fixedly connected to the output end of the permanent magnet motor. A bracket is fixedly connected to the bottom of the tube. The bottom of the bracket is fixedly connected to the bottom of the inner cavity of the mounting frame. A sealing cap is fitted onto the top of the tube. A discharge pipe is fixedly connected to the top of the sealing cap. The outer wall of the discharge pipe penetrates the outer wall of the top of the mounting frame. A filter element is fixedly connected to the bottom of the sealing cap. The filter element is located in the inner cavity of the tube. A mechanical sealing strip is fixedly connected to the top of the tube. The outer wall of the mechanical sealing strip engages with the inner wall of the sealing cap. A engagement mechanism is provided on the outer wall of the sealing cap. A pressing mechanism is provided on the top of the tube.

[0008] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0009] In one alternative: the bottom of the sealing cover has a sealing groove, and the sealing groove is adapted to the mechanical sealing strip.

[0010] In one alternative embodiment: the snap-fit ​​mechanism includes a connecting block, the outer wall of which is fixedly connected to the outer wall of the sealing cap, a rod fixedly connected to the bottom of the connecting block, the outer wall of the rod penetrating the outer wall of the top of the tube, a plug inserted into the bottom of the rod, the outer wall of the plug fixedly connected to the outer wall of the tube, a snap-fit ​​block inserted into the inner wall of the plug, the outer wall of the snap-fit ​​block being inserted into the bottom of the rod, a pull plate fixedly connected to the outer wall of the snap-fit ​​block, and a limit mechanism provided at the bottom of the pull plate.

[0011] In one alternative: the bottom of the insertion rod has a slot that matches the shape of the snap-fit ​​block.

[0012] In one alternative embodiment: the limiting mechanism includes a connecting frame, the top of which is fixedly connected to the bottom of the pull plate, a sliding rod slidably connected to the top of the connecting frame, connecting plates fixedly connected to both ends of the sliding rod, a spring movably sleeved on the outer wall of the sliding rod, and the outer wall of the spring fixedly connected to the outer wall of the connecting frame, a limiting block slidably connected to the bottom of the connecting frame, and the top of the limiting block fixedly connected to the bottom of the connecting plate.

[0013] In one alternative: the limiting block is in the shape of an inverted T, and the outer wall of the connecting frame is provided with a sliding groove that matches the limiting block.

[0014] In one alternative embodiment: the pressing mechanism includes a mounting bracket, the bottom of which is fixedly connected to the top of the tube body, a threaded rod rotatably connected to the top of the mounting bracket, the bottom of which penetrates the outer wall of the tube body and is rotatably connected to the tube body, and a pressure plate threadedly connected to the top of the threaded rod, the outer wall of which is inserted into the top of the sealing cap.

[0015] In one alternative: the top of the sealing cover has an arc-shaped slot that matches the shape of the pressure plate.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This utility model utilizes the cooperation between the snap-fit ​​mechanism and the pressing mechanism. By rotating the threaded rod, the pressure plate moves upward on the outer wall of the threaded rod, so that the outer wall of the pressure plate is no longer inserted into the arc-shaped slot. Continuing to rotate the threaded rod drives the pressure plate to rotate, so that the pressure plate no longer obstructs the sealing cover. Then, pulling the pull plate prevents the snap-fit ​​block from contacting the snap-fit ​​groove at the bottom of the insertion rod. Subsequently, the sealing cover can be pulled upward, causing the connecting block and the insertion rod to move upward synchronously. At the same time, the sealing cover moves the filter element away from the inner cavity of the tube, thereby removing the filter element. Then, the filter element can be cleaned and maintained.

[0018] 2. This utility model utilizes the cooperation between the sealing cap, mechanical sealing strip, insert rod, snap-fit ​​block, threaded rod, and pressure plate. By pressing down on the sealing cap, the sealing groove is fully engaged with the outer wall of the mechanical sealing strip, while the insert rod and snap-fit ​​block are engaged. Then, the threaded rod is rotated to turn the pressure plate directly above the arc-shaped slot. The pressure plate is then fixed so that it no longer rotates. Finally, the threaded rod is rotated to engage the pressure plate with the arc-shaped slot, thereby ensuring the sealing performance between the sealing cap and the pipe body. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a cross-sectional structural diagram of the tube body of this utility model.

[0021] Figure 3 This is a schematic diagram of the snap-fit ​​mechanism of this utility model.

[0022] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0023] Figure reference numerals: 1. Mounting frame; 11. Permanent magnet motor; 12. Bracket; 13. Pipe body; 14. Sealing cap; 15. Discharge pipe; 16. Mechanical seal strip; 17. Filter element; 2. Snap-fit ​​mechanism; 21. Connecting block; 22. Insert rod; 23. Insert block; 24. Pull plate; 25. Snap-fit ​​block; 3. Limiting mechanism; 31. Connecting frame; 32. Slide rod; 33. Spring; 34. Connecting plate; 35. Limiting block; 4. Pressing mechanism; 41. Mounting bracket; 42. Threaded rod; 43. Pressure plate. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0025] In one embodiment, such as Figures 1-4 As shown, an easy-to-maintain air compressor filter assembly includes a mounting frame 1. A permanent magnet motor 11 is fixedly connected to the left side of the inner cavity of the mounting frame 1. A pipe body 13 is fixedly connected to the output end of the permanent magnet motor 11. A bracket 12 is fixedly connected to the bottom of the pipe body 13. The bottom of the bracket 12 is fixedly connected to the bottom of the inner cavity of the mounting frame 1. A sealing cover 14 is fitted to the top of the pipe body 13. A discharge pipe 15 is fixedly connected to the top of the sealing cover 14. The outer wall of the discharge pipe 15 penetrates the outer wall of the top of the mounting frame 1. A filter element 17 is fixedly connected to the bottom of the sealing cover 14. The filter element 17 is located in the inner cavity of the pipe body 13. A mechanical sealing strip 16 is fixedly connected to the top of the pipe body 13. The outer wall of the mechanical sealing strip 16 is engaged with the inner wall of the sealing cover 14. A engagement mechanism 2 is provided on the outer wall of the sealing cover 14. A pressing mechanism 4 is provided on the top of the pipe body 13.

[0026] In this embodiment, the locking mechanism 2 is limited by the limiting mechanism 3 so that the locking mechanism 2 can remain in the locking state and will not come out. At the same time, the sealing cover 14 is restricted by the pressing mechanism 4 so that the sealing cover 14 and the tube body 13 are tightly connected. The sealing groove at the bottom of the sealing cover 14 and the mechanical sealing strip 16 cooperate to ensure the sealing of the tube body 13.

[0027] In an optional embodiment, as shown in Figure 2, a sealing groove is provided at the bottom of the sealing cover 14, and the sealing groove is adapted to the mechanical sealing strip 16. The tightness of the connection between the sealing cover 14 and the tube body 13 is ensured by the cooperation between the sealing groove at the bottom of the sealing cover 14 and the mechanical sealing strip 16.

[0028] In an optional embodiment, such as Figures 1-3As shown, the snap-fit ​​mechanism 2 includes a connecting block 21. The outer wall of the connecting block 21 is fixedly connected to the outer wall of the sealing cover 14. A rod 22 is fixedly connected to the bottom of the connecting block 21. The outer wall of the rod 22 penetrates the outer wall of the top of the tube body 13. A plug 23 is inserted into the bottom of the rod 22. The outer wall of the plug 23 is fixedly connected to the outer wall of the tube body 13. A snap-fit ​​block 25 is inserted into the inner wall of the plug 23. The outer wall of the snap-fit ​​block 25 is inserted into the bottom of the rod 22. A pull plate 24 is fixedly connected to the outer wall of the snap-fit ​​block 25. A limit mechanism 3 is provided at the bottom of the pull plate 24. Pulling the pull plate 24 causes the snap-fit ​​block 25 to no longer contact the snap-fit ​​groove at the bottom of the rod 22. Then, the sealing cover 14 can be pulled upward, causing the sealing cover 14 to move the connecting block 21 and the rod 22 upward synchronously, so that the bottom of the rod 22 is no longer inserted into the inner wall of the plug 23.

[0029] In an optional embodiment, such as Figure 2 and Figure 3 As shown, the bottom of the insertion rod 22 has a slot that matches the shape of the snap-fit ​​block 25. Through the cooperation between the slot and the snap-fit ​​block 25, the insertion rod 22 can move directly downwards during installation, allowing the snap-fit ​​block 25 to move outwards on its own, eliminating the need for manual operation. At the same time, the cooperation between the slot and the snap-fit ​​block 25 can restrict the movement of the insertion rod 22.

[0030] In an optional embodiment, such as Figures 2-4 As shown, the limiting mechanism 3 includes a connecting frame 31. The top of the connecting frame 31 is fixedly connected to the bottom of the pull plate 24. A slide rod 32 is slidably connected to the top of the connecting frame 31. A connecting plate 34 is fixedly connected to both ends of the slide rod 32. A spring 33 is movably sleeved on the outer wall of the slide rod 32, and the outer wall of the spring 33 is fixedly connected to the outer wall of the connecting frame 31. A limiting block 35 is slidably connected to the bottom of the connecting frame 31. The top of the limiting block 35 is fixedly connected to the bottom of the connecting plate 34. By pulling the pull plate 24, the connecting frame 31 is moved synchronously, causing the connecting frame 31 to cause the spring 33 to retract. At the same time, the connecting frame 31 slides on the outer wall of the slide rod 32, and the limiting block 35 slides on the inner wall of the connecting frame 31.

[0031] In an optional embodiment, such as Figure 3 and Figure 4 As shown, the limiting block 35 is in the shape of an inverted T, and the outer wall of the connecting frame 31 is provided with a sliding groove that matches the limiting block 35. The limiting block 35 and the sliding groove restrict the connecting frame 31 and prevent the connecting frame 31 from traveling too far.

[0032] In an optional embodiment, such as Figure 2As shown, the pressing mechanism 4 includes a mounting frame 41. The bottom of the mounting frame 41 is fixedly connected to the top of the tube body 13. A threaded rod 42 is rotatably connected to the top of the mounting frame 41. The bottom of the threaded rod 42 penetrates the outer wall of the tube body 13 and is rotatably connected to the tube body 13. A pressure plate 43 is threadedly connected to the top of the threaded rod 42. The outer wall of the pressure plate 43 is inserted into the top of the sealing cover 14. When the threaded rod 42 is rotated, the pressure plate 43 will move upward on the outer wall of the threaded rod 42 because the outer wall of the pressure plate 43 is inserted into the arc-shaped slot. This causes the outer wall of the pressure plate 43 to no longer be inserted into the arc-shaped slot. Then, the threaded rod 42 is rotated again, causing the pressure plate 43 to rotate so that the pressure plate 43 no longer blocks the sealing cover 14.

[0033] In an optional embodiment, such as Figure 2 As shown, the top of the sealing cover 14 has an arc-shaped slot that matches the shape of the pressure plate 43. The pressure plate 43 is restricted by the arc-shaped slot, so that when the pressure plate 43 contacts the arc-shaped slot, the movement of the pressure plate 43 on the threaded rod 42 can only be a vertical translation, and it cannot rotate.

[0034] The above embodiment discloses an air compressor filter element assembly that is easy to maintain. When maintenance is required on the filter element 17 in the air compressor, first rotate the threaded rod 42. At this time, because the outer wall of the pressure plate 43 is inserted into the arc-shaped slot, the pressure plate 43 will move upward on the outer wall of the threaded rod 42, so that the outer wall of the pressure plate 43 is no longer inserted into the arc-shaped slot. Then continue to rotate the threaded rod 42, driving the pressure plate 43 to rotate, so that the pressure plate 43 no longer obstructs the sealing cover 14. Then pull the pull plate 24, driving the connecting frame 31 to move synchronously, so that the connecting frame 31 moves spring-loaded. Spring 33 retracts, and simultaneously the connecting frame 31 slides on the outer wall of the slide rod 32, while the limiting block 35 slides on the inner wall of the connecting frame 31. This causes the pull plate 24 to cause the locking block 25 to no longer contact the locking groove at the bottom of the insertion rod 22. Then, the sealing cover 14 can be pulled upwards, causing the sealing cover 14 to move the connecting block 21 and the insertion rod 22 upwards synchronously. This prevents the bottom of the insertion rod 22 from engaging with the inner wall of the insertion block 23, and simultaneously, the sealing groove of the sealing cover 14 no longer contacts the outer wall of the mechanical seal strip 16. Furthermore, the sealing cover 14 causes the filter element 17 to move away from the inner wall of the tube body 13. The filter element 17 can be removed by opening the cavity, and then it can be cleaned and maintained. During installation, align the insert rod 22 with the slot of the insert block 23, and press the sealing cover 14 down directly so that the sealing groove is fully engaged with the outer wall of the mechanical seal strip 16. At the same time, the outer wall of the insert rod 22 contacts the outer wall of the snap-fit ​​block 25, causing the snap-fit ​​block 25 to slide automatically on the inner wall of the insert block 23. When the bottom of the insert rod 22 is fully in contact with the inner wall of the insert block 23, the outer wall of the snap-fit ​​block 25 is engaged with the slot at the bottom of the insert rod 22 under the elastic force of the spring 33. After lowering the pressure plate 43 to the appropriate position, the pressure plate 43 is rotated to the top of the arc-shaped slot and then engaged with the arc-shaped slot to complete the assembly. In summary, the limiting mechanism 3 limits the engagement mechanism 2, ensuring that the engagement mechanism 2 remains engaged and does not come off. At the same time, the pressing mechanism 4 restricts the sealing cover 14, ensuring a tight connection between the sealing cover 14 and the pipe body 13. The cooperation between the sealing groove at the bottom of the sealing cover 14 and the mechanical sealing strip 16 ensures the sealing performance of the pipe body 13.

[0035] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An easy-to-maintain air compressor filter element assembly, comprising a mounting frame (1), wherein a permanent magnet motor (11) is fixedly connected to the left side of the inner cavity of the mounting frame (1), a tube body (13) is fixedly connected to the output end of the permanent magnet motor (11), a bracket (12) is fixedly connected to the bottom of the tube body (13), the bottom of the bracket (12) is fixedly connected to the bottom of the inner cavity of the mounting frame (1), a sealing cap (14) is fitted to the top of the tube body (13), a discharge pipe (15) is fixedly connected to the top of the sealing cap (14), the outer wall of the discharge pipe (15) penetrates the outer wall of the top of the mounting frame (1), and a filter element (17) is fixedly connected to the bottom of the sealing cap (14), the filter element (17) being located in the inner cavity of the tube body (13), characterized in that, A mechanical sealing strip (16) is fixedly connected to the top of the tube body (13). The outer wall of the mechanical sealing strip (16) is engaged with the inner wall of the sealing cover (14). The outer wall of the sealing cover (14) is provided with a engagement mechanism (2). The top of the tube body (13) is provided with a pressing mechanism (4).

2. The air compressor filter element assembly for easy maintenance according to claim 1, characterized in that, The bottom of the sealing cover (14) is provided with a sealing groove, and the sealing groove is compatible with the mechanical sealing strip (16).

3. The air compressor filter element assembly for easy maintenance according to claim 1, characterized in that, The snap-fit ​​mechanism (2) includes a connecting block (21), the outer wall of the connecting block (21) is fixedly connected to the outer wall of the sealing cap (14), the bottom of the connecting block (21) is fixedly connected to a rod (22), the outer wall of the rod (22) penetrates the outer wall of the top of the tube body (13), the bottom of the rod (22) is inserted into a plug (23), the outer wall of the plug (23) is fixedly connected to the outer wall of the tube body (13), the inner wall of the plug (23) is inserted into a snap-fit ​​block (25), the outer wall of the snap-fit ​​block (25) is inserted into the bottom of the rod (22), the outer wall of the snap-fit ​​block (25) is fixedly connected to a pull plate (24), and the bottom of the pull plate (24) is provided with a limit mechanism (3).

4. The air compressor filter element assembly for easy maintenance according to claim 3, characterized in that, The bottom of the insertion rod (22) is provided with a slot that matches the shape of the snap-fit ​​block (25).

5. The air compressor filter element assembly for easy maintenance according to claim 3, characterized in that, The limiting mechanism (3) includes a connecting frame (31), the top of the connecting frame (31) is fixedly connected to the bottom of the pull plate (24), a sliding rod (32) is slidably connected to the top of the connecting frame (31), a connecting plate (34) is fixedly connected to both the left and right ends of the sliding rod (32), a spring (33) is movably sleeved on the outer wall of the sliding rod (32), and the outer wall of the spring (33) is fixedly connected to the outer wall of the connecting frame (31), a limiting block (35) is slidably connected to the bottom of the connecting frame (31), and the top of the limiting block (35) is fixedly connected to the bottom of the connecting plate (34).

6. The air compressor filter element assembly for easy maintenance according to claim 5, characterized in that, The limiting block (35) is in the shape of an inverted T, and the outer wall of the connecting frame (31) is provided with a sliding groove that matches the limiting block (35).

7. The air compressor filter element assembly for easy maintenance according to claim 1, characterized in that, The pressing mechanism (4) includes a mounting bracket (41), the bottom of which is fixedly connected to the top of the tube body (13), and a threaded rod (42) is rotatably connected to the top of the mounting bracket (41). The bottom of the threaded rod (42) penetrates the outer wall of the tube body (13) and is rotatably connected to the tube body (13). A pressure plate (43) is threadedly connected to the top of the threaded rod (42), and the outer wall of the pressure plate (43) is inserted into the top of the sealing cover (14).

8. The air compressor filter element assembly for easy maintenance according to claim 7, characterized in that, The top of the sealing cover (14) has an arc-shaped slot that matches the shape of the pressure plate (43).

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