An oil tank return filter

Abstract

This utility model discloses an oil tank return oil filter, relating to the field of oil tank return oil filtration technology. It includes an oil inlet pipe, an oil outlet unit on one side of the inlet pipe, a fixing unit on the top surface of the oil outlet unit, and a filter unit inside the oil outlet unit. The oil outlet unit includes a connecting compartment and a disassembly unit. The connecting compartment is fixedly connected to one side of the inlet pipe, and the disassembly unit is fixedly connected to one side of the connecting compartment. The oil outlet unit includes a fixing plate, which is fixedly connected to one side of the connecting compartment. A fixing box is fixedly connected to the top surface of the fixing plate, and a pull rod is threaded through the inner side of the fixing box. A pressing block is fixedly connected to one end of the pull rod. This utility model, through the arrangement of the fixing plate, fixing box, pull rod, pressing block, and spring, achieves the effect of facilitating the disassembly of the tank cover, thereby facilitating the cleaning of the interior of the connecting compartment, and improving the practicality of the device.

Description

Technical Field

[0001] This utility model relates to the field of oil tank return oil filtration technology, specifically to an oil tank return oil filter. Background Technology

[0002] The return oil filter is a device used to filter out contaminants generated or introduced into the system before they return to the oil tank. It is installed on the return oil line at the end of the system. Its function is to filter out contaminants generated or introduced into the system before they return to the oil tank. Therefore, it is one of the most important filters for controlling the cleanliness of the system. Although it is a low-pressure line, pulsation or pressure shock may occur depending on the operating conditions of the transmission device. Therefore, the material and strength of the components must be fully considered.

[0003] Currently, the filter elements of oil return filters are mainly divided into four types: glass fiber, paper, mesh, and wire mesh. However, each type of oil return filter has the problem of poor filtration effect or frequent filter element replacement. Therefore, an oil tank oil return filter is needed to reduce the filter element replacement cycle and extend its service life. Utility Model Content

[0004] The purpose of this invention is to provide an oil tank return filter to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] An oil tank return filter includes an oil inlet pipe, an oil outlet unit is provided on one side of the oil inlet pipe, a fixing unit is provided on the top surface of the oil outlet unit, and a filter unit is provided inside the oil outlet unit.

[0007] The oil outlet unit includes a connecting chamber and a disassembly unit. The connecting chamber is fixedly connected to one side of the oil inlet pipe, and the disassembly unit is fixedly connected to one side of the connecting chamber.

[0008] The oil outlet unit includes a fixing plate, which is fixedly connected to one side of the connecting chamber. A fixing box is fixedly connected to the top surface of the fixing plate. A pull rod is provided through the inner side of the fixing box. A pressing block is fixedly connected to one end of the pull rod. The pressing block is slidably engaged with the inner side of the fixing box. A spring is sleeved on the outer side of the pull rod. One end of the spring is fixedly connected to the inner side of the fixing box and the other end of the spring is fixedly connected to one side of the pressing block.

[0009] A further improvement of this utility model is that: an inner groove is provided on the inner side of the top surface of the connecting chamber, an outer shell is fixedly connected to one side of the connecting chamber, and a plurality of oil outlet holes are provided on the inner side of the outer shell.

[0010] By adopting the above technical solution, the sealing effect of the connecting chamber is improved through the design of the inner tank, and the design of the outer shell and the oil outlet facilitates the discharge of filtered oil.

[0011] A further improvement of the present invention is that the fixing unit includes a cover, a connecting block is fixedly connected to one side of the cover, and one side of the connecting block is slidably connected to one side of the pressing block.

[0012] By adopting the above technical solution, through the design of the hopper cover, connecting block and inner tank, oil leakage can be avoided during the filtration process.

[0013] A further improvement of this utility model is that a sealing strip is fixedly connected to the bottom surface of the bin cover, and a threaded rod is threadedly connected to the inner side of the top surface of the bin cover.

[0014] By adopting the above technical solution, the design of the cover, threaded rod, and buckle facilitates the adjustment and limiting of filter elements of different lengths.

[0015] A further improvement of this utility model is that: a buckle is provided on the inner side of the threaded rod, a push block is rotatably connected to one end of the sealing strip, a second spring is fixedly connected to one side of the push block, and a fitting block is fixedly connected to one end of the second spring.

[0016] By adopting the above technical solution, the setting of push block, spring 2 and bonding block achieves the effect of facilitating the fixing of filter element, and at the same time, facilitating the disassembly and replacement of filter element.

[0017] A further improvement of the present invention is that the filter unit includes a filter element, the filter element is disposed inside the connecting compartment, the top surface of the filter element has several through holes, and the top surface of the filter element has a positioning groove.

[0018] By adopting the above technical solution, the filter element and through holes are designed to facilitate the filtration of the returned oil.

[0019] A further improvement of this utility model is that a positioning block is engaged with the inner side of the positioning groove, and a magnetic rod is fixedly connected to one side of the positioning block.

[0020] By adopting the above technical solution, the arrangement of filter element, positioning groove, positioning block and magnetic rod achieves the effect of easily sticking iron filings in oil, and at the same time makes it easy to clean the magnetic rod.

[0021] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0022] This utility model provides an oil tank return filter. By setting up a fixing plate, fixing box, pull rod, pressing block and spring, it achieves the effect of easy disassembly of the tank cover, thereby facilitating the cleaning of the inside of the connecting tank and improving the practicality of the device. The inner groove improves the sealing effect of the connecting tank, and the outer shell and oil outlet facilitate the discharge of filtered oil.

[0023] This utility model provides an oil tank return filter. The design of the tank cover, threaded rod and buckle facilitates the adjustment and limiting of filter elements of different lengths. The design of the push block, spring and contact block facilitates the fixing of the filter element and the disassembly and replacement of the filter element. Attached Figure Description

[0024] Figure 1 This is a three-dimensional cross-sectional view of the present invention;

[0025] Figure 2 This is a schematic diagram of the oil outlet unit of this utility model;

[0026] Figure 3 This utility model Figure 2 Enlarged schematic diagram of structure A;

[0027] Figure 4 This is a schematic diagram of the structure of the fixing unit of this utility model;

[0028] Figure 5 This is an exploded structural diagram of the filter unit of this utility model.

[0029] In the diagram: 1. Oil inlet pipe; 2. Oil outlet unit; 21. Connecting compartment; 22. Easy-to-remove unit; 221. Fixing plate; 222. Fixing box; 223. Pull rod; 224. Pressing block; 225. Spring one; 23. Inner groove; 24. Outer shell; 25. Oil outlet hole; 3. Fixing unit; 31. Compartment cover; 32. Connecting block; 33. Sealing strip; 34. Threaded rod; 35. Buckle; 36. Push block; 37. Spring two; 38. Adhesive block; 4. Filter unit; 41. Filter element; 42. Through hole; 43. Positioning groove; 44. Positioning block; 45. Magnetic rod. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to embodiments: Example 1

[0031] like Figures 1-5As shown, this utility model provides an oil tank return filter, including an oil inlet pipe 1, an oil outlet unit 2 provided on one side of the oil inlet pipe 1, a fixing unit 3 provided on the top surface of the oil outlet unit 2, a filter unit 4 provided inside the oil outlet unit 2, the oil outlet unit 2 including a connecting chamber 21 and a detachable unit 22, the connecting chamber 21 being fixedly connected to one side of the oil inlet pipe 1, the detachable unit 22 being fixedly connected to one side of the connecting chamber 21, the oil outlet unit 2 including a fixing plate 221, the fixing plate 221 being fixedly connected to one side of the connecting chamber 21, a fixing box 222 being fixedly connected to the top surface of the fixing plate 221, and a through-hole for the inner side of the fixing box 222. A pull rod 223 has a pressing block 224 fixedly connected to one end. The pressing block 224 is slidably engaged with the inside of the fixed box 222. A spring 225 is sleeved on the outside of the pull rod 223. One end of the spring 225 is fixedly connected to the inside of the fixed box 222, and the other end is fixedly connected to one side of the pressing block 224. Pulling the pull rod 223 causes the pressing block 224 to move inside the fixed box 222, which in turn causes the spring 225 to retract. At the same time, the pressing block 224 is placed on the top surface of the connecting block 32. Simultaneously, the elastic action of the spring 225 completes the fixation of the compartment cover 31. Example 2

[0032] like Figures 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, an inner groove 23 is provided on the inner side of the top surface of the connecting chamber 21, a housing 24 is fixedly connected to one side of the connecting chamber 21, a plurality of oil outlet holes 25 are provided on the inner side of the housing 24, the fixing unit 3 includes a chamber cover 31, a connecting block 32 is fixedly connected to one side of the chamber cover 31, one side of the connecting block 32 is slidably connected to one side of the pressing block 224, a sealing strip 33 is fixedly connected to the bottom surface of the chamber cover 31, a threaded rod 34 is threadedly connected to the inner side of the top surface of the chamber cover 31, and a buckle 35 is provided on the inner side of the threaded rod 34 for sealing. One end of strip 33 is rotatably connected to push block 36, and one side of push block 36 is fixedly connected to spring 27. One end of spring 27 is fixedly connected to adhesive block 38. The cover 31 is placed on the top surface of connecting chamber 21, and then the connecting block 32 on the bottom side of the cover 31 seals with the inner groove 23 on the top surface of the connecting chamber 21. Then, the threaded rod 34 is controlled to drive push block 36 to rotate, and at the same time, it drives spring 27 on the bottom side to move, which in turn drives adhesive block 38 to adhere to the top surface of filter element 41, thereby completing the limiting and fixing of filter element 41. The filtered oil is discharged through several oil outlet holes 25. Example 3

[0033] like Figures 1-5As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the filter unit 4 includes a filter element 41, which is disposed inside the connecting chamber 21. The top surface of the filter element 41 has several through holes 42 and a positioning groove 43. A positioning block 44 is engaged inside the positioning groove 43, and a magnetic rod 45 is fixedly connected to one side of the positioning block 44. Oil is discharged into the interior of the filter element 41 through the several through holes 42 for filtration. Subsequently, the magnetic rod 45 adsorbs iron filings in the oil. After long-term use, the magnetic rod 45 can be removed through the positioning block 44 for cleaning, and the filtered oil is discharged through several oil outlet holes 25.

[0034] The working principle of the oil return filter in this oil tank will be explained in detail below.

[0035] like Figures 1-5 As shown, by placing the filter element 41 inside the connecting chamber 21, and then placing the chamber cover 31 on the top surface of the connecting chamber 21, the connecting block 32 on the bottom side of the chamber cover 31 seals with the inner groove 23 on the top surface of the connecting chamber 21. Then, the threaded rod 34 drives the push block 36 to rotate, simultaneously moving the bottom spring 37, which in turn causes the fitting block 38 to adhere to the top surface of the filter element 41, thus completing the limiting and fixing of the filter element 41. Simultaneously, pulling the pull rod 223 moves the pressing block 224 inside the fixed box 222, thereby... Spring 225 retracts, simultaneously placing pressing block 224 on the top surface of connecting block 32. The elasticity of spring 225 also secures the cover 31. The return oil pipe is connected via oil inlet pipe 1, pumping oil into the connecting chamber 21. The oil is then discharged through several through holes 42 into the filter element 41 for filtration. Magnetic rod 45 attracts iron filings from the oil. After prolonged use, the magnetic rod 45 can be removed and cleaned via positioning block 44. The filtered oil is then discharged through several oil outlet holes 25.

[0036] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. An oil tank return filter, comprising an oil inlet pipe (1), characterized in that: An oil outlet unit (2) is provided on one side of the oil inlet pipe (1), a fixing unit (3) is provided on the top surface of the oil outlet unit (2), and a filter unit (4) is provided inside the oil outlet unit (2). The oil outlet unit (2) includes a connecting chamber (21) and a disassembly unit (22). The connecting chamber (21) is fixedly connected to one side of the oil inlet pipe (1), and the disassembly unit (22) is fixedly connected to one side of the connecting chamber (21). The oil outlet unit (2) includes a fixing plate (221), which is fixedly connected to one side of the connecting chamber (21). A fixing box (222) is fixedly connected to the top surface of the fixing plate (221). A pull rod (223) is provided through the inner side of the fixing box (222). A pressing block (224) is fixedly connected to one end of the pull rod (223). The pressing block (224) is slidably engaged with the inner side of the fixing box (222). A spring (225) is sleeved on the outer side of the pull rod (223). One end of the spring (225) is fixedly connected to the inner side of the fixing box (222), and the other end of the spring (225) is fixedly connected to one side of the pressing block (224).

2. The oil tank return filter according to claim 1, characterized in that: The inner side of the top surface of the connecting chamber (21) is provided with an inner groove (23), and a shell (24) is fixedly connected to one side of the connecting chamber (21). A number of oil outlet holes (25) are provided on the inner side of the shell (24).

3. The oil tank return filter according to claim 1, characterized in that: The fixing unit (3) includes a compartment cover (31), and a connecting block (32) is fixedly connected to one side of the compartment cover (31). One side of the connecting block (32) is slidably connected to one side of the pressing block (224).

4. The oil tank return filter according to claim 3, characterized in that: A sealing strip (33) is fixedly connected to the bottom surface of the cover (31), and a threaded rod (34) is threadedly connected to the inner side of the top surface of the cover (31).

5. The oil tank return filter according to claim 4, characterized in that: The inner side of the threaded rod (34) is provided with a buckle (35), one end of the sealing strip (33) is rotatably connected to a push block (36), one side of the push block (36) is fixedly connected to a spring (37), and one end of the spring (37) is fixedly connected to a bonding block (38).

6. The oil tank return filter according to claim 1, characterized in that: The filter unit (4) includes a filter element (41), which is disposed inside the connecting compartment (21). The top surface of the filter element (41) has several through holes (42) and a positioning groove (43).

7. The oil tank return filter according to claim 6, characterized in that: A positioning block (44) is engaged with the inner side of the positioning groove (43), and a magnetic rod (45) is fixedly connected to one side of the positioning block (44).

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