Oil filter with replaceable filter element

Abstract

The invention discloses an oil filter with replaceable filter elements. The oil filter comprises a case, an oil inlet tank, an oil discharge tank, a filter element switching assembly, a first driving part and a second driving part. The filter element switching assembly comprises a sliding frame and filter elements, the sliding frame is arranged in the interval between the oil inlet tank and the oil outlet tank in a left-right sliding mode, a left containing groove and a right containing groove are formed in the sliding frame, and the filter elements are detachably and horizontally placed in the containing grooves. The filter element used by the device is a plate type filter element, the filter element is simple in structure and large in filtering flow, the filter element is horizontally placed, lubricating oil automatically flows through the filter element from top to bottom by means of self weight to be filtered and purified, the lubricating oil flows smoothly in the whole filtering process, and the filtering efficiency is higher; and the two filter elements are arranged in the device, and the positions of the two filter elements can be switched, so that the device is still in a normal operation state when the removed old filter element is disassembled, assembled and replaced, the non-stop replacement of the filter elements can be realized, and extra loss caused by long-time stop of the device is avoided.

Description

Technical Field

[0001] The invention relates to the field of oil filter machines, in particular to an oil filter machine with a replaceable filter element. Background Art

[0002] The main function of the oil filter is to filter and purify the lubricating oil, remove the water and impurities in the lubricating oil, so as to avoid the emulsification failure of the lubricating oil. The filter element commonly used in the existing oil filter is a cylindrical filter element, which has a complex structure, high cost, and a small filtration flow rate. Moreover, if it needs to be replaced after a period of use, the oil filter machine often needs to be shut down to remove and replace the filter element. It is impossible to replace it without stopping the machine, and improvement is needed. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide an oil filter with a replaceable filter element.

[0004] The technical solution of the present invention is as follows: A filter element replaceable oil filter, characterized in that it comprises:

[0005] A chassis, wherein the front side of the chassis is provided with a door that can be opened or closed, the top of the chassis is provided with an oil inlet pipe, and the bottom of the chassis is provided with an oil drain pipe;

[0006] An oil inlet tank, the oil inlet tank is arranged inside the chassis, the bottom of the oil inlet tank is open, a bellows is arranged on the top of the oil inlet tank, the bellows is connected with the oil inlet pipe, and a control valve is arranged between the bellows and the oil inlet pipe;

[0007] An oil drain box, the oil drain box is fixedly arranged inside the chassis, the oil drain box is located directly below the oil inlet box and is separated from the oil inlet box, the upper side of the oil drain box is open, and the bottom of the oil drain box is connected to the oil drain pipe;

[0008] A filter element switching assembly, the filter element switching assembly comprises a slide and a filter element, the filter element is a plate filter element, the outer periphery of the filter element is provided with a frame, the slide can be slid left and right in the interval between the oil inlet tank and the oil outlet tank, the slide is provided with two placement grooves, one on the left and one on the right, each placement groove is provided with a filter element that can be detachably placed horizontally, the outer frame of the filter element is provided with a flange, and the flange is supported at the upper edge of the slide;

[0009] a first driving member, wherein a left limit switch and a right limit switch are arranged in the chassis, and the first driving member is connected to the slide to drive the slide to slide between the left limit switch and the right limit switch, and when the slide slides to the left limit switch, the filter element on the right side of the slide is located between the oil inlet tank and the oil outlet tank, and when the slide slides to the right limit switch, the filter element on the left side of the slide is located between the oil inlet tank and the oil outlet tank;

[0010] The second driving member is connected to the oil inlet tank, and the second driving member is used to drive the oil inlet tank to move up and down to tighten or loosen the outer frame of the filter element below.

[0011] Furthermore, the left limit switch is arranged on the inner wall of the chassis, the right limit switch is arranged on the oil drain tank, and a detection block is arranged on the slide, and the detection block is located between the left limit switch and the right limit switch.

[0012] Furthermore, the first driving member includes a first electric telescopic rod, one end of which is fixedly connected to the detection block, and the other end of which is fixedly connected to the oil drain tank via a support.

[0013] Furthermore, a horizontal support rail is provided in the chassis, and the support rail is two and arranged one in front and one behind, and the slide is supported on the support rail.

[0014] Furthermore, the second driving member includes a second electric telescopic rod, one end of the second electric telescopic rod is fixedly connected to the chassis, and the other end of the second electric telescopic rod is fixedly connected to the oil inlet tank.

[0015] Furthermore, sealing rings are provided at the bottom of the oil inlet tank and the top of the oil outlet tank.

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

[0017] This device is used to filter and purify lubricating oil, remove moisture and impurities in lubricating oil, so as to avoid emulsification failure of lubricating oil. The filter element used in this device is a plate filter element, which has a simple structure and a large filtering flow rate. The filter element is placed horizontally, and the lubricating oil automatically flows through the filter element from top to bottom by its own weight for filtering and purification. The flow of lubricating oil in the whole filtering process is relatively smooth, and the filtering efficiency will be higher; and there are two filter elements in this device, which can be switched in position, so when the old filter element is disassembled and replaced, the device is still in normal operation, so the filter element can be replaced without stopping the machine, avoiding additional losses caused by long-term shutdown of the device.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work:

[0020] Figure 1 It is an overall schematic diagram of the present invention;

[0021] Figure 2 It is a schematic diagram of the box door of the present invention after opening;

[0022] Figure 3 This is a front view of the box door of the present invention after it is opened;

[0023] Figure 4 is a schematic diagram of the internal components of the chassis of the present invention;

[0024] Figure 5 is an exploded schematic diagram of the filter element and the slide frame of the present invention;

[0025] Figure 6 yes Figure 4 A cross-sectional view of

[0026] Reference numerals:

[0027] 1. Chassis; 2. Chassis door; 3. Oil inlet pipe; 4. Oil drain pipe; 5. Oil inlet tank; 6. Bellows; 7. Control valve; 8. Oil drain tank; 9. Slide; 10. Filter element; 11. Frame; 12. Flanging; 13. Left limit switch; 14. Right limit switch; 15. First drive member; 16. Second drive member; 17. Detection block; 18. Support rail. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "vertical", "circumferential", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the description of the present invention, "first feature" and "second feature" may include one or more of the features. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0032] like Figure 1-Figure 6 The oil filter machine with replaceable filter element shown in the figure comprises: a chassis 1, an oil inlet box 5, an oil outlet box 8, a filter element switching assembly, a first driving member 15 and a second driving member 16.

[0033] like Figure 1 and Figure 2 As shown, a door 2 which can be opened or closed is provided on the front side of the chassis 1 , an oil inlet pipe 3 is provided on the top of the chassis 1 , and an oil drain pipe 4 is provided on the bottom of the chassis 1 .

[0034] like Figure 2-Figure 4 As shown, the oil inlet tank 5 is arranged inside the chassis 1, the bottom of the oil inlet tank 5 is open, and a bellows 6 is arranged on the top of the oil inlet tank 5, the bellows 6 is connected with the oil inlet pipe 3, and a control valve 7 is arranged between the bellows 6 and the oil inlet pipe 3; the oil drain tank 8 is fixedly arranged inside the chassis 1, the oil drain tank 8 is located directly below the oil inlet tank 5 and is separated from the oil inlet tank 5, the upper side of the oil drain tank 8 is open, and the bottom of the oil drain tank 8 is connected to the oil drain pipe 4.

[0035] like Figure 3-Figure 5As shown, the filter element switching assembly includes a slide 9 and a filter element 10. The filter element 10 is a plate filter element 10. A frame 11 is provided on the outer periphery of the filter element 10. The slide 9 can be slid left and right in the interval between the oil inlet tank 5 and the oil outlet tank 8. Two placement grooves, one on the left and one on the right, are provided on the slide 9. The filter element 10 can be detachably and horizontally placed in each placement groove. The outer frame of the filter element 10 is provided with a flange 12, and the flange 12 is supported at the upper edge of the slide 9.

[0036] A left limit switch 13 and a right limit switch 14 are provided in the chassis 1. The first driving member 15 is connected to the slide 9 to drive the slide 9 to slide between the left limit switch 13 and the right limit switch 14. When the slide 9 slides to the left limit switch 13, the filter element 10 on the right side of the slide 9 is located between the oil inlet tank 5 and the oil drain tank 8. When the slide 9 slides to the right limit switch 14, the filter element 10 on the left side of the slide 9 is located between the oil inlet tank 5 and the oil drain tank 8. The second driving member 16 is connected to the oil inlet tank 5, and the second driving member 16 is used to drive the oil inlet tank 5 to move up and down to tighten or loosen the outer frame of the filter element 10 below.

[0037] Specifically, the working process of this device is as follows:

[0038] When the device is operating normally, one of the left and right filter elements 10 will always be located between the oil inlet tank 5 and the oil outlet tank 8. Figure 6 For example, assuming that the filter element 10 on the right is located between the oil inlet tank 5 and the oil drain tank 8, during the operation of the device, the control valve 7 is in a normally open state. At this time, the lubricating oil flows into the oil inlet tank 5 from the oil inlet pipe 3, and will automatically be filtered and purified through the filter element 10 downward, and then automatically flow to the oil drain tank 8 below, and finally be discharged from the oil drain pipe 4.

[0039] The filter element 10 is a plate filter element 10, which has a simple structure and a large filtering flow rate. After filtering and purifying the lubricating oil, the water and impurities in the lubricating oil can be removed, thereby preventing the lubricating oil from emulsification failure. Moreover, the filter element 10 in the device is placed horizontally, and the lubricating oil automatically flows through the filter element 10 from top to bottom by its own weight for filtering and purification. The lubricating oil flows smoothly during the entire filtering process, and the filtering efficiency will be higher.

[0040] When the device needs to replace the filter element 10 after running for a period of time, the control valve 7 is temporarily closed first, and then the second drive member 16 drives the oil inlet tank 5 to move upward to loosen the original filter element 10. At this time, the first drive member 15 drives the slide 9 to move to the right, so that the new filter element 10 on the left side moves to between the oil inlet tank 5 and the oil drain tank 8, and the original old filter element 10 on the right side moves out to the right. Finally, the second drive member 16 drives the oil inlet tank 5 to move downward to reset and press the new filter element 10, and the control valve 7 is reopened, and the device can continue to operate.

[0041] At this time, the operator can open the box door 2, disassemble the removed old filter element 10 and replace it with a new filter element 10 for next use. This form of disassembly and replacement of the filter element 10 is simple and convenient, and when disassembling and replacing the removed old filter element 10, the device is still in normal operation, so the filter element 10 can be replaced without stopping the machine, avoiding additional losses caused by long-term shutdown of the device.

[0042] In this device, if Figure 5 As shown, the outer frame of the filter element 10 has a flange 12, and the filter element 10 can be directly placed in the placement groove. At this time, the flange 12 is supported on the upper edge of the slide 9, which is very convenient to use.

[0043] In the present device, in order to prevent the lubricating oil from leaking during filtration, the oil inlet box 5 is pressed against the outer frame of the filter element 10, and sealing rings can be further provided at the bottom of the oil inlet box 5 and the top of the oil drain box 8, thereby improving the sealing performance.

[0044] In this device, if Figure 3 and Figure 4 As shown, a bellows 6 is provided between the top of the oil inlet tank 5 and the oil discharge pipe 4 , and the bellows 6 is retractable, so it will not affect the up and down movement of the oil inlet tank 5 .

[0045] In this device, in order to accurately control the distance of the slide 9 sliding left and right, a left limit switch 13 and a right limit switch 14 are provided in the chassis 1. Figure 2 As shown, the left limit switch 13 is arranged on the inner wall of the chassis 1, the right limit switch 14 is arranged on the oil drain tank 8, and the slide 9 is provided with a detection block 17, and the detection block 17 is located between the left limit switch 13 and the right limit switch 14, so that when the detection block 17 moves to a certain limit switch position, the first drive block stops working and moves in the opposite direction at the next start.

[0046] In actual application, the first driving member 15 includes a first electric telescopic rod, one end of which is fixedly connected to the detection block 17, and the other end is fixedly connected to the oil drain tank 8 through a support, thereby the slide 9 can be driven to slide left and right through the extension and retraction of the first electric telescopic rod.

[0047] In this device, if Figure 3 and Figure 4 As shown, a horizontal support rail 18 is provided in the chassis 1. The support rail 18 is two and arranged one in front of the other. The slide 9 is supported on the support rail 18, thereby providing a stable support for the slide 9.

[0048] In this device, if Figure 3 and Figure 4As shown, the second driving member 16 includes a second electric telescopic rod, one end of which is fixedly connected to the chassis 1, and the other end is fixedly connected to the oil inlet tank 5, so that the oil inlet tank 5 can be driven to move up and down by the extension and retraction of the second electric telescopic rod.

[0049] In summary, the device is used to filter and purify lubricating oil, remove moisture and impurities in the lubricating oil, so as to avoid emulsification failure of the lubricating oil. The filter element 10 used in the device is a plate filter element 10, which has a simple structure and a large filtering flow rate. The filter element 10 is placed horizontally, and the lubricating oil automatically flows from top to bottom through the filter element 10 by its own weight for filtering and purification. The lubricating oil flows smoothly during the entire filtering process, and the filtering efficiency will be higher; and two filter elements 10 are provided in the device, which can be switched in position, so that when the old filter element 10 is disassembled and replaced, the device is still in normal operation, so the filter element 10 can be replaced without stopping the machine, avoiding additional losses caused by long-term shutdown of the device.

[0050] Although a portion of the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations to these embodiments are within the scope of protection of the claims of the present invention without departing from the principles and purpose of the present invention.

Claims

1. A filter element replaceable oil filter, characterized in that: include: A chassis, wherein the front side of the chassis is provided with a door that can be opened or closed, the top of the chassis is provided with an oil inlet pipe, and the bottom of the chassis is provided with an oil drain pipe; An oil inlet tank, the oil inlet tank is arranged inside the chassis, the bottom of the oil inlet tank is open, a bellows is arranged on the top of the oil inlet tank, the bellows is communicated with the oil inlet pipe, and a control valve is arranged between the bellows and the oil inlet pipe; An oil drain box, the oil drain box is fixedly arranged inside the chassis, the oil drain box is located directly below the oil inlet box and is separated from the oil inlet box, the upper side of the oil drain box is open, and the bottom of the oil drain box is connected to the oil drain pipe; A filter element switching assembly, the filter element switching assembly comprises a slide and a filter element, the filter element is a plate filter element, the outer periphery of the filter element is provided with a frame, the slide can be slid left and right in the interval between the oil inlet tank and the oil outlet tank, the slide is provided with two placement grooves, one on the left and one on the right, each placement groove is provided with a filter element that can be detachably placed horizontally, the outer frame of the filter element is provided with a flange, and the flange is supported at the upper edge of the slide; a first driving member, wherein a left limit switch and a right limit switch are arranged in the chassis, and the first driving member is connected to the slide to drive the slide to slide between the left limit switch and the right limit switch, and when the slide slides to the left limit switch, the filter element on the right side of the slide is located between the oil inlet tank and the oil outlet tank, and when the slide slides to the right limit switch, the filter element on the left side of the slide is located between the oil inlet tank and the oil outlet tank; The second driving member is connected to the oil inlet tank, and the second driving member is used to drive the oil inlet tank to move up and down to tighten or loosen the outer frame of the filter element below.

2. The filter element replaceable oil filter according to claim 1, characterized in that: The left limit switch is arranged on the inner wall of the chassis, the right limit switch is arranged on the oil drain tank, and a detection block is arranged on the slide, and the detection block is located between the left limit switch and the right limit switch.

3. The replaceable filter element oil filter according to claim 2, characterized in that: The first driving member includes a first electric telescopic rod, one end of which is fixedly connected to the detection block, and the other end of which is fixedly connected to the oil drain tank via a support.

4. The filter element replaceable oil filter according to claim 1, characterized in that: A horizontal support rail is arranged in the chassis. The support rail is in two pieces and arranged one in front of the other. The slide is supported on the support rail.

5. The filter element replaceable oil filter according to claim 1, characterized in that: The second driving member includes a second electric telescopic rod, one end of which is fixedly connected to the chassis, and the other end of which is fixedly connected to the oil inlet tank.

6. The filter element replaceable oil filter according to claim 1, characterized in that: The bottom of the oil inlet tank and the top of the oil outlet tank are both provided with sealing rings.

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