Lubricating oil filter with oil spill prevention structure

Abstract

The utility model discloses a lubricating oil filter with an oil spill prevention structure, which relates to the technical field of lubricating oil filtration and comprises a filter bin, an oil outlet pipe fixedly connected to the bottom of the filter bin, an oil inlet mechanism arranged on the top of the filter bin, a filter element arranged on the inner side of the filter bin, and a sealing mechanism arranged on the top of the filter element. Heated lubricating oil is guided into the inner side of the filter bin through the oil inlet pipe, the butt flange is matched with the connecting flange to play a sealing role, and the lubricating oil falls into the inner side of the filter element through the central oil passing hole formed in the sealing mechanism, is filtered by the filter element, is discharged into the inner side of the filter bin and is finally discharged through the oil outlet pipe. In the process, the thermal bimetallic strip absorbs heat of the lubricating oil and then expands, the expanded thermal bimetallic strip extrudes the rubber ring to be tightly attached to the inner wall of the filtering bin, sealing is tighter, the phenomenon of oil spilling caused by high oil pressure is prevented, and the problem that an existing lubricating oil filter is low in filtering effect due to the phenomenon of oil spilling is solved.

Description

Technical Field

[0001] This utility model relates to the field of lubricating oil filtration technology, and in particular to a lubricating oil filter with an anti-overflow structure. Background Technology

[0002] Lubricating oil is a liquid or semi-solid lubricant used in various types of automobiles and mechanical equipment to reduce friction and protect machinery and processed parts. Due to leakage in the lubrication system, dust particles in the air may enter or dust may fall off due to wear and tear on the system. The lubricating oil will inevitably decompose and deteriorate due to long-term operation at high temperatures and in the presence of water, resulting in the precipitation of colloidal substances. Before using these lubricating oils for power supply operations, filters are needed to achieve the corresponding filtration process.

[0003] Currently, most existing lubricating oil filters achieve their effects using the following technologies;

[0004] Mechanical filtration technology includes screen filtration and cartridge filtration;

[0005] Adsorption filtration technology, including activated carbon adsorption and ion exchange resin adsorption;

[0006] Magnetic filtration technology uses magnetic materials to adsorb and separate ferromagnetic impurities in lubricating oil;

[0007] Centrifugal filtration technology separates impurities from lubricating oil using centrifugal force.

[0008] Currently, existing lubricating oil filters using mechanical filtration technology have been found to have at least the following problems in actual use;

[0009] In actual use, existing lubricating oil filters may experience oil overflow at the sealing unit of the filter element due to lubricating oil pressure. This can cause unfiltered lubricating oil to spill out from the sealing unit, affecting the filtration effect of the lubricating oil. Utility Model Content

[0010] To address the shortcomings of existing technologies, this utility model provides a lubricating oil filter with an anti-overflow structure, thus solving the problem of low filtration efficiency in existing lubricating oil filters.

[0011] To achieve the above objectives, this utility model provides the following technical solution:

[0012] A lubricating oil filter with an anti-overflow structure includes a filter chamber, an oil outlet pipe fixedly connected to the bottom of the filter chamber, an oil inlet mechanism provided at the top of the filter chamber, a filter element provided inside the filter chamber, and a sealing mechanism provided at the top of the filter element. The oil inlet mechanism includes an oil inlet pipe and a connecting flange, and the sealing mechanism includes a rubber ring, a hot bimetallic strip, and a central oil passage hole.

[0013] Preferably, the top surface of the filter chamber is fixedly connected to a connecting flange, which is compatible with the mating flange, and a sealing gasket is provided between the connecting flange and the mating flange.

[0014] Preferably, a six-bolt assembly is fitted between the connecting flange and the mating flange, the bolt assembly including hex bolts and hex nuts.

[0015] Preferably, the oil inlet pipe is fixedly connected to the docking flange, and a flange is fixedly connected to the end of the oil inlet pipe away from the docking flange.

[0016] Preferably, a cross-shaped mounting bracket is fixedly connected to the inner wall of the filter chamber, a fixed plate is fixedly connected to the axis of the cross-shaped mounting bracket, and a support plate is fixedly connected to the top surface of the fixed plate.

[0017] Preferably, the bottom of the filter element is fixedly connected to a chassis, and the chassis is in contact with the top surface of the support plate.

[0018] Preferably, the inner side of the rubber ring has an annular groove, the bimetallic strip is fixedly installed inside the annular groove, the center of the rubber ring has a central oil passage hole, the bimetallic strip is composed of two layers of metal materials with different coefficients of thermal expansion, including an active layer metal sheet and a passive layer metal sheet, the active layer material is a manganese-nickel-copper alloy, the passive layer material is mainly a nickel-iron alloy, and the passive layer metal sheet is connected to the rubber ring.

[0019] Preferably, the bottom surface of the rubber ring is fixedly connected to the top surface of the filter element, and the outer wall of the rubber ring is in contact with the inner wall of the filter chamber by compression.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] I. This application connects to an external feeding mechanism via an oil inlet pipe, allowing heated lubricating oil to be introduced into the inner side of the filter chamber. The mating flange and connecting flange provide a sealing effect. The lubricating oil falls into the inner side of the filter element through the central oil passage of the sealing mechanism, is filtered by the filter element, and then discharged into the inner side of the filter chamber, finally exiting through the oil outlet pipe. During this process, the hot bimetallic strip absorbs the heat of the lubricating oil and expands. The expanded hot bimetallic strip compresses the rubber ring to adhere tightly to the inner wall of the filter chamber, making the seal tighter and preventing oil overflow due to high oil pressure. This solves the problem of low filtration efficiency caused by oil overflow in existing lubricating oil filters.

[0022] Second, this application, by providing a detachable docking flange and a connecting flange, allows the filter element to be removed from the filter chamber along with the sealing mechanism after the oil inlet mechanism is disassembled, facilitating the cleaning and replacement of the filter element, thus enabling this application to have the effect of a replaceable filter element. Attached Figure Description

[0023] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 2 This is an exploded structural diagram of the present invention;

[0026] Figure 3 This is a half-sectional view of the present invention;

[0027] Figure 4 This is a bottom view of the filter element and sealing mechanism of this utility model;

[0028] Figure 5 This is a cross-sectional structural diagram of the filter element of this utility model.

[0029] Legend: 1. Filter chamber; 2. Connecting flange; 3. Oil inlet pipe; 4. Cross-shaped mounting bracket; 5. Filter element; 6. Sealing mechanism; 7. Bolt assembly; 101. Oil outlet pipe; 201. Butt flange; 401. Fixing plate; 402. Support plate; 501. Base; 601. Rubber ring; 602. Bimetallic strip; 603. Center oil passage hole. Detailed Implementation

[0030] This application provides a lubricating oil filter with an anti-overflow structure, which effectively solves the problem of low filtration efficiency in existing lubricating oil filters.

[0031] Example

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the technical solution in this application embodiment effectively solves the technical problem of low filtration effect of existing lubricating oil filters. The overall idea is as follows:

[0033] To address the problems existing in the prior art, this utility model provides a lubricating oil filter with an anti-overflow structure, including a filter chamber 1, an oil outlet pipe 101 fixedly connected to the bottom of the filter chamber 1, an oil inlet mechanism provided at the top of the filter chamber 1, a filter element 5 provided on the inner side of the filter chamber 1, and a sealing mechanism 6 provided at the top of the filter element 5. The oil inlet mechanism includes an oil inlet pipe 3 and a connecting flange 201, and the sealing mechanism 6 includes a rubber ring 601, a hot bimetallic strip 602, and a central oil passage hole 603.

[0034] A connecting flange 2 is fixedly connected to the top surface of the filter chamber 1. The connecting flange 2 is compatible with the mating flange 201, and a sealing gasket is provided between the connecting flange 2 and the mating flange 201.

[0035] A six-bolt assembly 7 is adapted between the connecting flange 2 and the mating flange 201. The bolt assembly 7 includes hex bolts and hex nuts.

[0036] The oil inlet pipe 3 is fixedly connected to the docking flange 201, and a flange is fixedly connected to the end of the oil inlet pipe 3 away from the docking flange 201.

[0037] A cross-shaped mounting bracket 4 is fixedly connected to the inner wall of the filter chamber 1. A fixed plate 401 is fixedly connected to the axis of the cross-shaped mounting bracket 4. A support plate 402 is fixedly connected to the top surface of the fixed plate 401.

[0038] The bottom of the filter element 5 is fixedly connected to the chassis 501, and the chassis 501 is in contact with the top surface of the support plate 402.

[0039] An annular groove is provided on the inner side of the rubber ring 601, and the bimetallic strip 602 is fixedly installed on the inner side of the annular groove. A central oil passage hole 603 is provided at the axis of the rubber ring 601. The bimetallic strip 602 is composed of two layers of metal materials with different coefficients of thermal expansion, including an active layer metal sheet and a passive layer metal sheet. The active layer material is a manganese-nickel-copper alloy, and the passive layer material is mainly a nickel-iron alloy. The passive layer metal sheet is connected to the rubber ring 601.

[0040] The bottom surface of the rubber ring 601 is fixedly connected to the top surface of the filter element 5, and the outer wall of the rubber ring 601 is pressed against the inner wall of the filter chamber 1.

[0041] Filter compartment 1: As the main space for lubricating oil filtration, it houses components such as filter element 5 and provides a place for the filtration process.

[0042] Connection flange 2: Used to connect with docking flange 201, so that oil inlet pipe 3 is connected to filter chamber 1, and a sealing gasket is provided to achieve a sealing effect.

[0043] Oil inlet pipe 3: Connected to the external feeding mechanism, it introduces heated lubricating oil into the inside of the filter chamber 1.

[0044] Cross-shaped mounting bracket 4: fixed to the inner wall of filter chamber 1, providing support for fixed plate 401, and thus supporting filter element 5.

[0045] Filter element 5: Filters the lubricating oil entering the filter chamber 1 to remove impurities.

[0046] Sealing mechanism 6: It consists of a rubber ring 601, a hot bimetallic strip 602 and a central oil passage 603. The central oil passage 603 allows lubricating oil to flow into the filter element 5. The hot bimetallic strip 602 expands when heated and squeezes the rubber ring 601, so that the rubber ring 601 is tightly attached to the inner wall of the filter chamber 1, thereby enhancing the sealing effect.

[0047] Bolt assembly 7: includes hex bolts and hex nuts, used to secure the connecting flange 2 and the mating flange 201, ensuring the stability of the connection.

[0048] Oil outlet pipe 101: Located at the bottom of filter chamber 1, it discharges the lubricating oil filtered by filter element 5 into filter chamber 1.

[0049] Connecting flange 201: It is adapted to connecting flange 2 to connect oil inlet pipe 3 and filter chamber 1, so as to realize the connection and sealing of oil inlet channel.

[0050] Fixed plate 401: Fixed at the axis of the cross-shaped mounting bracket 4, providing a mounting base for the support plate 402.

[0051] Support plate 402: Supports the bottom of filter element 5 with the base plate 501, ensuring that filter element 5 is stably installed in filter chamber 1.

[0052] Chassis 501: Located at the bottom of filter element 5, it contacts the top surface of support plate 402 to keep filter element 5 stable.

[0053] Rubber ring 601: Its bottom surface is fixedly connected to the top surface of the filter element 5, and its outer wall is pressed against the inner wall of the filter chamber 1, further enhancing the sealing effect under the action of the hot bimetallic strip 602.

[0054] Thermo-bimetallic strip 602: Composed of two layers of metal materials with different coefficients of thermal expansion, it absorbs heat from the lubricating oil and expands to compress the rubber ring 601, achieving a tighter seal.

[0055] Center oil passage 603: Located at the center of the rubber ring 601, it is the channel through which lubricating oil flows from the oil inlet pipe 3 into the filter element 5.

[0056] Working principle:

[0057] In this application, the oil inlet pipe 3 is connected to an external feeding mechanism, and heated lubricating oil is introduced into the inner side of the filter chamber 1 through the oil inlet pipe 3. The connecting flange 201 cooperates with the connecting flange 2 to perform a sealing function. The lubricating oil will fall into the inner side of the filter element 5 through the central oil passage 603 opened in the sealing mechanism 6. After being filtered by the filter element 5, it will be discharged into the inner side of the filter chamber 1 and finally discharged through the oil outlet pipe 101. During this process, the hot bimetallic strip 602 will absorb the heat of the lubricating oil and expand. The expanded hot bimetallic strip 602 will squeeze the rubber ring 601 to stick tightly to the inner wall of the filter chamber 1, making the seal tighter and preventing oil overflow due to high oil pressure.

[0058] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A lubricating oil filter with an anti-oil-overflow structure, comprising a filter bin (1), a bottom of the filter bin (1) being fixedly connected with an oil outlet pipe (101), characterized in that, The top of the filter bin (1) is provided with an oil inlet mechanism, the inner side of the filter bin (1) is provided with a filter core (5), and the top of the filter core (5) is provided with a sealing mechanism (6); Wherein, the oil inlet mechanism comprises an oil inlet pipe (3) and a butt flange (201); Wherein, the sealing mechanism (6) comprises a rubber ring (601), a thermal bimetallic strip (602) and a center oil passing hole (603).

2. The lubricating oil filter having an oil spill prevention structure according to claim 1, characterized by: The top surface of the filter bin (1) is fixedly connected with a connecting flange (2), the connecting flange (2) is matched with the butt flange (201), and a sealing washer is arranged between the connecting flange (2) and the butt flange (201).

3. The lubricating oil filter having an oil spill prevention structure according to claim 2, characterized by: Six bolt assemblies (7) are matched between the connecting flange (2) and the butt flange (201), and the bolt assemblies (7) comprise hexagonal bolts and hexagonal nuts.

4. The lubricating oil filter having an oil spill prevention structure according to claim 3, characterized by: The oil inlet pipe (3) is fixedly connected with the butt flange (201), and the oil inlet pipe (3) is fixedly connected with a flange plate at the end away from the butt flange (201).

5. The lubricating oil filter having an oil spill prevention structure according to claim 4, characterized by: The inner wall of the filter bin (1) is fixedly connected with a cross-shaped mounting bracket (4), the axis of the cross-shaped mounting bracket (4) is fixedly connected with a fixed disc (401), and the top surface of the fixed disc (401) is fixedly connected with a supporting disc (402).

6. The lubricating oil filter having an oil spill prevention structure according to claim 5, characterized by: The bottom of the filter core (5) is fixedly connected with a bottom disc (501), and the top surface of the supporting disc (402) is in contact with the bottom disc (501).

7. The lubricating oil filter having an oil spill prevention structure according to claim 6, characterized by: The inner side of the rubber ring (601) is provided with an annular groove, the thermal bimetallic strip (602) is fixedly installed in the inner side of the annular groove, and the axis of the rubber ring (601) is provided with a center oil passing hole (603).

8. The lubricating oil filter having an oil spill prevention structure according to claim 7, characterized by: The bottom surface of the rubber ring (601) is fixedly connected with the top surface of the filter core (5), and the outer wall of the rubber ring (601) is in extrusion contact with the inner wall of the filter bin (1).

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