A filtering and refining equipment

Abstract

The utility model relates to a filtering and refining device, including: an equipment housing, which includes a top cover, a middle cover and a bottom cover connected in sequence from top to bottom, wherein the bottom cover includes a bottom cover body, a connecting hole, a threaded connection cylinder, an external threaded cylinder and a discharge port; the middle cover includes a connecting pipe; a threaded cover is arranged on the outside of the threaded connection cylinder; a first closing ball and a second closing ball are arranged inside the threaded connection cylinder and the connecting pipe respectively; a filter cylinder is arranged below the bottom cover and includes a connecting outer cylinder, a blocking block, a cylindrical filter screen and a flow hole; the blocking block and the cylindrical filter screen are both arranged inside the connecting outer cylinder. The utility model achieves a blocking effect by arranging the threaded cover, the first blocking ball and the second blocking ball. When the filter cylinder is disassembled, the two blocking balls both play a blocking role, so that the lubricating oil cannot flow out from the connecting pipe and the threaded connection cylinder, thereby achieving the effect of replacing the filter cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of lubricating oil filtering equipment, in particular to filtering and refining equipment. Background Art

[0002] Lubricating oil is a technology-intensive product, a mixture of complex hydrocarbons, and its actual performance is the combined effect of complex physical or chemical changes. When used, lubricating oil is usually applied to the surface of moving parts such as machine bearings or certain parts of mechanical equipment. It has the effect of reducing friction, avoiding heat and preventing machine wear. During the production process of lubricating oil, in order to reduce impurities inside the lubricating oil and ensure the quality of the lubricating oil, it is usually necessary to filter the lubricating oil using a filtering device.

[0003] The existing filtering device used in the production process of lubricating oil usually adopts the form of a filter screen for filtering. After the filter screen has been working for a long time, the solid impurities in the lubricating oil will adhere to the surface of the filter screen and block the filter screen, thereby making the filtering effect worse. Usually, in order to avoid this situation, staff are required to perform regular maintenance. During the maintenance process, the equipment needs to be shut down. At this time, the filter is in a stopped working state, and other processes will also be relatively stopped until the filter screen is replaced. Therefore, a filtering and refining equipment is proposed to solve the above-mentioned problems. Utility Model Content

[0004] Based on the above description, the utility model provides a filtering and refining device to solve the problem that the existing filter needs to be shut down when replacing the filter screen.

[0005] The utility model solves the above-mentioned technical problems with the following technical solutions: A filtering and refining device, comprising: a device housing, the device housing comprising a top cover, a middle cover and a bottom cover connected in sequence from top to bottom, the bottom cover comprising a bottom cover body, a connecting hole, a threaded connection cylinder, an external threaded cylinder and a discharge port, the middle cover comprising a connecting tube, the threaded cover is arranged on the outside of the threaded connection cylinder and comprises a connecting hole, a first closing ball and a second closing ball are respectively arranged on the inside of the threaded connection cylinder and the connecting tube, the filter cylinder is arranged below the bottom cover and comprises a connecting outer cylinder, a blocking block, a cylindrical filter screen and a flow hole, the connecting outer cylinder is connected to the threaded connection cylinder through the flow hole, and the blocking block and the cylindrical filter screen are both arranged on the inside of the connecting outer cylinder.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, the top cover comprises a support frame, and a top cover body is arranged on the upper surface of the support frame.

[0008] Furthermore, the middle cover comprises a middle cover body, the middle cover body is arranged on the bottom end of the support frame by screws, and a connecting pipe is arranged inside the middle cover body.

[0009] Furthermore, the connecting tubes are distributed equidistantly in a ring shape, the second closing balls are arranged inside the connecting tubes, and the diameter of the second closing balls is smaller than the inner diameter of the top of the connecting tubes and larger than the inner diameter of the bottom of the connecting tubes.

[0010] Furthermore, the bottom cover body is arranged below the middle cover body by screws, the communicating hole is arranged on the lower surface of the bottom cover body, the communicating tube passes through the communicating hole, and the communicating hole and the communicating tube are in a one-to-one correspondence.

[0011] Furthermore, a threaded connection tube is provided on the bottom surface of the bottom cover body, and the threaded connection tubes are equidistantly distributed in a ring shape along the outer circle of the connecting hole. A first closing ball is provided inside the threaded connection tube, and the diameter of the first closing ball is smaller than the inner diameter of the top of the threaded connection tube and larger than the inner diameter of the bottom of the threaded connection tube.

[0012] Furthermore, an external threaded barrel is provided at the bottom end of the bottom cover body, and the external threaded barrel is in a one-to-one correspondence with the connecting hole, and a discharge port is provided at the side of the bottom cover body.

[0013] Furthermore, the threaded cover includes an internally threaded cover body, which is arranged on the outside of the threaded connection tube by means of a threaded connection. The top of the internally threaded cover body is provided with a connecting hole connected to the threaded connection tube, and the inside of the internally threaded cover body is provided with a limit block extending to the inside of the threaded connection tube.

[0014] Furthermore, the connecting outer cylinder comprises a connecting outer cylinder body, an inner threaded cylinder and a sealing ring are arranged on the outside of the connecting outer cylinder body, the inner threaded cylinder is threadedly connected to the outer threaded cylinder, and the sealing ring is in contact with the inner wall of the outer threaded cylinder.

[0015] Furthermore, the blocking block includes a bottom block, a threaded block is provided at the top of the bottom block, the threaded block is arranged inside the connecting outer tube by means of threads, a top column is provided at the top of the threaded block, the top column extends to the inside of the connecting tube and contacts with the second closing ball.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0017] 1. The utility model is provided with a top cover, a middle cover, a bottom cover and a filter cartridge, and the top cover, the middle cover and the bottom cover cooperate with each other to form a complete equipment housing. After the lubricating oil is passed into the top cover, the lubricating oil shell directly enters the interior of the filter cartridge through the connecting pipe. After the lubricating oil is filtered, it enters the interior of the bottom cover through the flow hole and the threaded connection cartridge, and is discharged from the discharge port;

[0018] 2. By setting the threaded cover, the first closing ball and the second closing ball, a sealing effect is achieved. When the filter cartridge and the bottom cover are connected to each other, the top column lifts up the second closing ball, so that the connecting pipe and the filter cartridge are connected to each other. When the lubricating oil enters from the threaded connecting tube after being filtered through the filter cartridge, the first closing ball is lifted up by the lubricating oil at this time, so that the lubricating oil can enter the interior of the bottom cover. When the filter cartridge is removed, the two sealing balls both play a sealing role, so that the lubricating oil cannot flow out from the connecting tube and the threaded connecting tube, thereby achieving the effect of replacing the filter cartridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of a filtering and refining device provided in an embodiment of the utility model;

[0020] Figure 2 for Figure 1 Structural cross-sectional view of

[0021] Figure 3 for Figure 2 A structural diagram from another perspective;

[0022] Figure 4 for Figure 3 A partial enlarged schematic diagram of the middle A area;

[0023] Figure 5 This is a schematic diagram of the structure of the middle cover in the embodiment of the utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the bottom cover in the embodiment of the utility model;

[0025] Figure 7 This is a schematic diagram of the structure of the threaded cover in the embodiment of the utility model;

[0026] Figure 8 This is a schematic diagram of the structure of the blocking block in the embodiment of the utility model;

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] 1. Top cover; 11. Support frame; 12. Top cover body; 2. Middle cover; 21. Middle cover body; 22. Connecting pipe; 3. Bottom cover; 31. Bottom cover body; 32. Connecting hole; 33. Threaded connection cylinder; 34. Externally threaded cylinder; 35. Discharge port; 4. Threaded cover; 41. Internally threaded cover body; 42. Connecting hole; 43. Limiting block; 5. First closing ball; 6. Second closing ball; 7. Connecting outer cylinder; 71. Connecting outer cylinder body; 72. Internally threaded cylinder; 8. Blocking block; 81. Bottom block; 82. Threaded block; 83. Top column; 9. Cylindrical filter; 10. Flow hole. DETAILED DESCRIPTION

[0029] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0031] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0032] See also Figure 1-Figure 6 , the device housing comprises a top cover 1, a middle cover 2 and a bottom cover 3 connected in sequence from top to bottom, wherein,

[0033] The top cover 1 includes a support frame 11, and a top cover body 12 is provided on the upper surface of the support frame 11.

[0034] The bottom cover 3 comprises a bottom cover body 31, a communicating hole 32, a threaded connection tube 33, an externally threaded tube 34 and a discharge port 35. The bottom cover body 31 is arranged below the middle cover body 21 by screws. The communicating hole 32 is arranged on the lower surface of the bottom cover body 31. The communicating tube 22 passes through the communicating hole 32. The communicating hole 32 and the communicating tube 22 are in a one-to-one correspondence. The bottom surface of the bottom cover body 31 is provided with a threaded connection tube 33. The threaded connection tube 33 is distributed in an annular manner and equidistantly along the outer circle of the communicating hole 32. The inside of the threaded connection tube 33 is provided with a first closing ball 5. The diameter of the first closing ball 5 is smaller than the inner diameter of the top of the threaded connection tube 33 and larger than the inner diameter of the bottom of the threaded connection tube 33. The bottom end of the bottom cover body 31 is provided with an externally threaded tube 34. The externally threaded tube 34 and the communicating hole 32 are in a one-to-one correspondence. The side of the bottom cover body 31 is provided with a discharge port 35.

[0035] The middle cover 2 includes a connecting pipe 22. The middle cover 2 includes a middle cover body 21. The middle cover body 21 is screwed to the bottom end of the support frame 11. The middle cover body 21 is provided with a connecting pipe 22 inside. The connecting pipes 22 are equidistantly distributed in a ring shape. The second closing ball 6 is provided inside the connecting pipe 22. The diameter of the second closing ball 6 is smaller than the inner diameter of the top of the connecting pipe 22 and larger than the inner diameter of the bottom of the connecting pipe 22.

[0036] Based on the above, the top cover 1, the middle cover 2 and the bottom cover 3 are connected to each other by cylinder screws. At this time, the space between the top cover 1 and the middle cover 2 can temporarily retain the lubricating oil. After the lubricating oil flows into the interior of the top cover 1 and the middle cover 2 through the top cover 1, the lubricating oil can flow downward along the connecting pipe 22 to the filter cylinder. The setting of the external threaded cylinder 34 enables the filter cylinder to be connected to the bottom cover 3, and the interior of the threaded connection cylinder 33 can be provided with a first closing ball 5. The first closing ball 5 and the second closing ball 6 respectively play the effect of blocking the threaded connection cylinder 33 and the connecting pipe 22. When the filter cylinder is removed, the second closing ball 6 fits tightly with the inner wall of the connecting pipe 22 under the action of gravity to block the connecting pipe 22. At this time, the lubricating oil between the top cover 1 and the middle cover 2 cannot flow out from the blocked connecting pipe 22, and the first closing ball 5 cannot move upward after losing the thrust of the lubricating oil from bottom to top, that is, the threaded connecting cylinder 33 is kept closed under the action of gravity.

[0037] like Figure 2-Figure 4 as well as Figure 7 As shown, the threaded cover 4 is arranged outside the threaded connection cylinder 33 and includes a connection hole 42;

[0038] The threaded cover 4 includes an internal threaded cover body 41, which is arranged on the outside of the threaded connection tube 33 by threaded connection. The top of the internal threaded cover body 41 is provided with a connection hole 42 connected to the threaded connection tube 33, and the inside of the internal threaded cover body 41 is provided with a limit block 43 extending to the inside of the threaded connection tube 33.

[0039] Based on the above, the threaded cover 4 is threadedly connected to the threaded connecting tube 33. At this time, the connecting hole 42 plays a connecting role. The setting of the limit block 43 plays a role in limiting the movement range of the first closing ball 5, thereby avoiding the situation where the first closing ball 5 blocks the connecting hole 42.

[0040] like Figure 1-Figure 4 as well as Figure 8 As shown, the filter cartridge is arranged below the bottom cover 3 and comprises a connecting outer cartridge 7, a blocking block 8, a cylindrical filter screen 9 and a flow hole 10, wherein:

[0041] The connecting outer cylinder 7 is connected with the threaded connecting cylinder 33 through the flow hole 10. The connecting outer cylinder 7 includes a connecting outer cylinder body 71. The outer portion of the connecting outer cylinder body 71 is provided with an internal threaded cylinder 72 and a sealing ring. The internal threaded cylinder 72 is threadedly connected with the external threaded cylinder 34. The sealing ring contacts the inner wall of the external threaded cylinder 34.

[0042] The blocking block 8 and the cylindrical filter screen 9 are both arranged inside the connecting outer tube 7. The blocking block 8 includes a bottom block 81. A threaded block 82 is arranged at the top of the bottom block 81. The threaded block 82 is arranged inside the connecting outer tube 7 by means of threads. A top column 83 is arranged at the top of the threaded block 82. The top column 83 extends to the inside of the connecting tube 22 and contacts the second closing ball 6.

[0043] Based on the above, the internal threaded barrel 72 is threadedly connected to the external threaded barrel 34. During this process, the top column 83 extends into the interior of the connecting tube 22, playing the role of lifting the second closing ball 6, and the cylindrical filter screen 9 is arranged between the threaded block 82 and the barrel 71, playing the role of filtering the lubricating oil, and the flow hole 10 plays the role of connecting the outer barrel 7 and the equipment casing.

[0044] In actual use of this embodiment, the lubricating oil is passed into the interior of the top cover 1. At this time, the lubricating oil flows into the interior of the connecting outer cylinder 71 after passing through the connecting pipe 22, and flows out from the flow hole 10 after being filtered by the cylindrical filter 9. The flowing lubricating oil pushes the first closing ball 5 upward, so that after the first closing ball 5 moves upward, the lubricating oil can flow through the threaded connecting cylinder 33 and enter between the bottom cover 3 and the middle cover 2, and the filtered lubricating oil can be discharged from the discharge port 35;

[0045] When the filter needs to be replaced, the connecting outer cylinder 7 can be rotated so that the connecting outer cylinder 7 drives the blocking block 8 to move downward together. During this process, the top column 83 gradually descends, and then the second closing ball 6 moves downward under the combined action of gravity and the downward pressure of the lubricating oil, that is, the second closing ball 6 blocks the connecting pipe 22. When the filter cartridge is completely separated from the equipment housing, the first closing ball 8 also blocks the threaded connecting cylinder 33, so that the lubricating oil can no longer leak from the connection between the filter cartridge and the equipment housing. At this time, the cylindrical filter 9 can be replaced or another filter cartridge can be directly replaced;

[0046] The device is provided with a plurality of filter cartridges, so that one of the filter cartridges can be removed during the filtering process of the filtering and refining equipment, which does not affect the normal use of the equipment. After the single filter cartridge is removed, the cylindrical filter screen 9 inside it can be replaced, and after the replacement, the filter cartridge can be installed without affecting the operation of the equipment.

[0047] The device is provided with a unique device housing and filter cartridge structure, so that the device housing can be sealed after the filter cartridge is removed. Removing a single filter cartridge will not cause the device to stop operating. The removed filter cartridge can be replaced and then installed. Compared with traditional filtering devices, this device can replace the filter without stopping the machine, thereby extending the service life.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A filtering and refining device, characterized in that: include: The device housing comprises a top cover (1), a middle cover (2) and a bottom cover (3) which are connected in sequence from top to bottom, wherein: A bottom cover (3), comprising a bottom cover body (31), a communicating hole (32), a threaded connection cylinder (33), an external threaded cylinder (34) and a discharge port (35); A middle cover (2), comprising a connecting pipe (22); A threaded cover (4), which is arranged outside the threaded connection cylinder (33) and includes a connection hole (42); A first closing ball (5) and a second closing ball (6), which are respectively arranged inside the threaded connection tube (33) and the connecting tube (22); The filter cartridge is arranged below the bottom cover (3) and comprises a connecting outer cartridge (7), a blocking block (8), a cylindrical filter screen (9) and a flow hole (10), wherein: A connecting outer cylinder (7) which is connected to the threaded connecting cylinder (33) through a flow hole (10); The blocking block (8) and the cylindrical filter screen (9) are both arranged inside the connecting outer cylinder (7).

2. The filtering and refining equipment according to claim 1, characterized in that: The top cover (1) comprises a support frame (11), and a top cover body (12) is provided on the upper surface of the support frame (11).

3. The filtering and refining equipment according to claim 2, characterized in that: The middle cover (2) comprises a middle cover body (21), the middle cover body (21) is arranged on the bottom end of the support frame (11) by means of screws, and a connecting pipe (22) is arranged inside the middle cover body (21).

4. The filtering and refining equipment according to claim 3, characterized in that: The connecting tubes (22) are distributed in an annular shape and at equal intervals. The second closing balls (6) are arranged inside the connecting tubes (22). The diameter of the second closing balls (6) is smaller than the inner diameter of the top of the connecting tubes (22) and larger than the inner diameter of the bottom of the connecting tubes (22).

5. The filtering and refining equipment according to claim 4, characterized in that: The bottom cover body (31) is arranged below the middle cover body (21) by means of screws, the connecting hole (32) is arranged on the lower surface of the bottom cover body (31), the connecting tube (22) passes through the connecting hole (32), and the connecting hole (32) and the connecting tube (22) are in a one-to-one correspondence.

6. The filtering and refining equipment according to claim 5, characterized in that: A threaded connection tube (33) is arranged on the bottom surface of the bottom cover body (31), and the threaded connection tube (33) is equidistantly distributed in a circular shape along the outer circle of the connecting hole (32). A first closing ball (5) is arranged inside the threaded connection tube (33), and the diameter of the first closing ball (5) is smaller than the inner diameter of the top of the threaded connection tube (33) and larger than the inner diameter of the bottom of the threaded connection tube (33).

7. The filtering and refining equipment according to claim 1, characterized in that: An external threaded barrel (34) is provided at the bottom end of the bottom cover body (31), and the external threaded barrel (34) is in a one-to-one correspondence with the connecting hole (32). A discharge port (35) is provided on the side of the bottom cover body (31).

8. The filtering and refining equipment according to claim 1, characterized in that: The threaded cover (4) comprises an internal threaded cover body (41), which is arranged on the outside of the threaded connection tube (33) by means of a threaded connection, and a connection hole (42) which is connected to the threaded connection tube (33) is arranged at the top end of the internal threaded cover body (41), and a limit block (43) which extends to the inside of the threaded connection tube (33) is arranged inside the internal threaded cover body (41).

9. The filtering and refining equipment according to claim 1, characterized in that: The connecting outer cylinder (7) comprises a connecting outer cylinder body (71), the outside of which is provided with an internal threaded cylinder (72) and a sealing ring, the internal threaded cylinder (72) being threadedly connected to the external threaded cylinder (34), and the sealing ring being in contact with the inner wall of the external threaded cylinder (34).

10. The filtering and refining equipment according to claim 3, characterized in that: The blocking block (8) comprises a bottom block (81), a threaded block (82) is arranged at the top end of the bottom block (81), the threaded block (82) is arranged inside the connecting outer cylinder (7) by means of a thread, and a top column (83) is arranged at the top end of the threaded block (82), the top column (83) extends to the inside of the connecting tube (22) and contacts the second sealing ball (6).

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