Oil filter with multi-layer filtering mechanism

Abstract

The utility model relates to the field of engine oil filters, and discloses an engine oil filter with a multi-layer filtering mechanism, which comprises filter paper, the rear end of the filter paper is fixedly connected to the front end of a first-layer central pipe, the outer wall of the first-layer central pipe is provided with a through hole, the lower surface of the first-layer central pipe is fixedly connected with an extension ring, and the extension ring is provided with a through hole. An extension ring is arranged on the upper surface of the first-layer center pipe, a locking assembly is arranged on the outer wall of the extension ring, a fixing assembly is arranged on the outer wall of the extension ring, a flow guide cover is fixedly connected to the upper surface of the first-layer center pipe, a fixing seat is in threaded connection with the inner wall of the flow guide cover, and a liquid outlet is formed in the inner wall of the fixing seat. According to the engine oil filter, through the fixing base, the filter screens and the first-layer center pipe, when the engine oil filter is used, dirty engine oil can be firstly filtered through the first-layer filter screen, then the second-layer filter screen takes effect, the cleaned engine oil is discharged out of the last filter screen through the liquid outlet, impurities of the engine oil filter can be cleared away as much as possible, and the filtering effect of the engine oil filter is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of oil filter, especially to an oil filter with a multi-layer filtering mechanism. BACKGROUND

[0002] The oil filter with a multi-layer filtering mechanism is a key component of an automobile engine, and its principle is to use multiple layers of filtering layers made of different materials, such as filter paper and fiber, to intercept and adsorb impurities in the oil, so that clean oil enters the engine. The structure includes a filter core, a housing, a bypass valve, a check valve, and the like. The advantage is that the filtering effect is good, and various particle size impurities can be removed. The service life is long, and each layer shares the filtering pressure.

[0003] Under the prior art, most of the oil filters on the market are single-layer filtering, but a single layer may miss a part of impurities such as metal chips or dust, which can damage the engine and result in poor filtering effect. Therefore, an oil filter with a multi-layer filtering mechanism is proposed to solve the above problems. SUMMARY

[0004] To make up for the above shortcomings, the utility model provides an oil filter with a multi-layer filtering mechanism, which aims to improve the problem of "single layer may miss a part of impurities such as metal chips or dust, which can damage the engine and result in poor filtering effect" in the prior art.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: an oil filter with a multi-layer filtering mechanism, comprising filter paper, a layer of center pipe is fixedly connected to the rear end of the filter paper, a through hole is arranged on the outer wall of the layer of center pipe, an extension ring is fixedly connected to the lower surface of the layer of center pipe, a locking assembly is arranged on the outer wall of the extension ring, a fixing assembly is arranged on the outer wall of the extension ring, a flow guide cover is fixedly connected to the upper surface of the layer of center pipe, a fixed seat is threadedly connected to the inner wall of the flow guide cover, a liquid outlet is arranged on the inner wall of the fixed seat, a filter screen is fixedly connected to the inner wall of the fixed seat, a second layer of center pipe is fixedly connected to the lower surface of the fixed seat, and a bottom hole is fixedly connected to the lower surface of the second layer of center pipe.

[0006] Further description of the above technical scheme:

[0007] The fixing assembly comprises a fixed plate, a threaded rod is threadedly connected to the inner wall of the fixed plate, and a knob is fixedly connected to the upper surface of the threaded rod.

[0008] Further description of the above technical scheme:

[0009] The locking assembly comprises a protection box, the lower surface of the protection box is fixedly connected to the upper surface of the fixed plate, and a plug block is slidingly connected to the inner wall of the protection box.

[0010] As a further description of the above technical solutions:

[0011] The left surface of the plug block is fixedly connected with a connecting rod, the outer wall of the connecting rod is slidably connected with the inner wall of the protection box, and the left surface of the connecting rod is fixedly connected with a pull plate.

[0012] As a further description of the above technical solutions:

[0013] The outer wall of the extension ring is provided with a slot, and the outer wall of the plug block is inserted into the inner wall of the slot.

[0014] As a further description of the above technical solutions:

[0015] The left surface of the plug block is fixedly connected with a reset spring, and the left end of the reset spring is fixedly connected with the inner wall of the protection box.

[0016] As a further description of the above technical solutions:

[0017] The flow guide cover is provided with a round corner.

[0018] As a further description of the above technical solutions:

[0019] The fixing assembly and the locking assembly are provided with a plurality of groups, and the plurality of fixing assemblies and locking assemblies are symmetrically arranged along the center line of the extension ring.

[0020] The utility model has the following beneficial effects:

[0021] 1、The utility model discloses a filter device, which comprises a fixed seat, a filter screen and a center pipe, and the filter screen is arranged on the center pipe.

[0022] 2、The utility model discloses a filter device, which comprises a fixed seat, a filter screen and a center pipe, and the filter screen is arranged on the center pipe. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the three-dimensional structure schematic diagram of the whole device in the utility model;

[0024] Figure 2 It is the three-dimensional structure schematic diagram of the locking assembly in the utility model;

[0025] Figure 3 It is the three-dimensional structure section view schematic diagram of the whole device in the utility model.

[0026] Legend:

[0027] 1, filter paper; 2, flow guide cover; 3, fixed seat; 4, filter screen; 5, a layer of central tube; 6, through hole; 7, extension ring; 8, fixed assembly; 9, locking assembly; 10, bottom hole; 11, liquid outlet; 12, two-layer central tube; 81, fixed plate; 82, threaded rod; 83, knob; 91, protection box; 92, plug; 93, connecting rod; 94, pull plate; 95, plug slot; 96, return spring. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] Referring to Figure 1 - Figure 3 An embodiment provided by the present application: an oil filter with a multi-layer filtering mechanism, comprising filter paper 1 for filtering impurities in oil, a layer of central tube 5 connected to the rear end of the filter paper 1 for first filtering impurities, a through hole 6 provided on the outer wall of the layer of central tube 5 for allowing oil to flow into the interior, an extension ring 7 connected to the lower surface of the layer of central tube 5 for connecting a fixed plate 81 without changing the device, a locking assembly 9 provided on the outer wall of the extension ring 7 for locking the extension ring 7 to realize the fixing device, a fixed assembly 8 provided on the outer wall of the extension ring 7 for fixing the locking device, a flow guide cover 2 connected to the upper surface of the layer of central tube 5 for guiding the flow of oil, a fixed seat 3 threadedly connected to the inner wall of the flow guide cover 2 for fixing a filter screen 4 and a liquid outlet 11, a liquid outlet 11 provided on the inner wall of the fixed seat 3 for guiding the flow of liquid, a filter screen 4 fixedly connected to the inner wall of the fixed seat 3 for performing third filtering to further increase the filtering effect, a two-layer central tube 12 fixedly connected to the lower surface of the fixed seat 3 for performing second filtering to enhance the filtering effect and having the same structure as the layer of central tube 5, and a bottom hole 10 fixedly connected to the lower surface of the two-layer central tube 12 for accommodating the oil filter shell.

[0030] Referring to Figure 1 - Figure 3The fixed assembly 8 comprises a fixed plate 81 for fixing the threaded rod 82, the inner wall of the fixed plate 81 is threadedly connected with the threaded rod 82 for screwing into the vehicle body to fix the device, the upper surface of the threaded rod 82 is fixedly connected with a knob 83 for facilitating the operator to screw, the locking assembly 9 comprises a protective box 91 for protecting the internal structure, the lower surface of the protective box 91 is fixedly connected to the upper surface of the fixed plate 81, the inner wall of the protective box 91 is slidingly connected with an insertion block 92 for being inserted into the insertion slot 95 to realize the fixing of the device, the left surface of the insertion block 92 is fixedly connected with a connecting rod 93 for connecting the insertion block 92 and the pull plate 94, the outer wall of the connecting rod 93 is slidingly connected to the inner wall of the protective box 91, and the left surface of the connecting rod 93 is fixedly connected with the pull plate 94 for facilitating the operator to pull the connecting rod 93.

[0031] Referring to Figure 1 - Figure 3 The outer wall of the extension ring 7 is provided with an insertion slot 95 for accommodating the insertion block 92, the outer wall of the insertion block 92 is inserted into the inner wall of the insertion slot 95, the left surface of the insertion block 92 is fixedly connected with a reset spring 96 for automatically resetting the insertion block 92 after movement, the left end of the reset spring 96 is fixedly connected to the inner wall of the protective box 91, and the flow guide cover 2 is provided with a round corner, the fixed assembly 8 and the locking assembly 9 are provided in multiple groups, and the multiple groups of the fixed assembly 8 and the locking assembly 9 are symmetrically arranged along the center line of the extension ring 7, so that the device will not shake or the like due to external force after being fixed, and the fixing effect is enhanced.

[0032] Working principle: first, place the device at the desired position, screw the threaded rod 82, pull the pull plate 94 after being fixed, the movement of the pull plate 94 drives the movement of the connecting rod 93, the connecting rod 93 synchronously drives the movement of the insertion block 92, and finally the insertion block 92 is retracted into the protective box 91, at this time the reset spring 96 is deformed, the oil filter is taken up, the insertion slot 95 is aligned with the insertion block 92, and the pull plate 94 is loosened, under the action of the internal reset spring 96, the insertion block 92 is reinserted into the insertion slot 95, the device is fixed, the flow guide cover 2 is screwed into the outer wall of the fixed seat 3 along the inner wall thread groove, at this time the dirty oil flows in, first passes through the filter paper 1, after the surface impurities of the filter paper 1 are filtered, the oil flows into the second layer of the center tube 12, after the filter paper of the second layer of the center tube 12 is filtered, it also flows into through the through hole 6 of the second layer of the center tube 12, and finally the oil is guided to the liquid outlet 11 and flows out along the liquid outlet 11, at this time it is filtered through the third filter screen 4.

[0033] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, the made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. An oil filter with a multi-layer filtering mechanism, comprising a filter paper (1), characterized in that: The rear end of the filter paper (1) is fixedly connected with a layer of central tube (5), the outer wall of the layer of central tube (5) is provided with a through hole (6), the lower surface of the layer of central tube (5) is fixedly connected with an extension ring (7), the outer wall of the extension ring (7) is provided with a locking assembly (9), the outer wall of the extension ring (7) is provided with a fixing assembly (8), the upper surface of the layer of central tube (5) is fixedly connected with a flow guide cover (2), the inner wall of the flow guide cover (2) is threadedly connected with a fixing seat (3), the inner wall of the fixing seat (3) is provided with a liquid outlet (11), the inner wall of the fixing seat (3) is fixedly connected with a filter screen (4), the lower surface of the fixing seat (3) is fixedly connected with a two-layer central tube (12), and the lower surface of the two-layer central tube (12) is fixedly connected with a bottom hole (10).

2. The oil filter having a multi-layer filtration mechanism according to claim 1, characterized by: The fixing assembly (8) comprises a fixed plate (81), and the inner wall of the fixed plate (81) is threadedly connected with a threaded rod (82).

3. The oil filter having a multi-layer filtration mechanism according to claim 2, characterized by: The locking assembly (9) comprises a protection box (91), and the lower surface of the protection box (91) is fixedly connected to the upper surface of the fixed plate (81).

4. The oil filter having a multi-layer filtration mechanism according to claim 3, characterized by: The left surface of the plug block (92) is fixedly connected with a connecting rod (93), the outer wall of the connecting rod (93) is slidably connected to the inner wall of the protection box (91), and the left surface of the connecting rod (93) is fixedly connected with a pull plate (94).

5. The oil filter having a multi-layer filtration mechanism according to claim 4, characterized by: The outer wall of the extension ring (7) is provided with a slot (95), and the outer wall of the plug block (92) is inserted into the inner wall of the slot (95).

6. The oil filter having a multi-layer filtration mechanism according to claim 5, characterized by: The left surface of the plug block (92) is fixedly connected with a reset spring (96), and the left end of the reset spring (96) is fixedly connected to the inner wall of the protection box (91).

7. The oil filter having a multi-layer filtration mechanism according to claim 1, characterized by: The flow guide cover (2) is provided with a round corner.

8. The oil filter having a multi-layer filtration mechanism according to claim 1, characterized by: The fixing assembly (8) and the locking assembly (9) are provided with a plurality of groups, and the plurality of groups of the fixing assembly (8) and the locking assembly (9) are symmetrically arranged along the center line of the extension ring (7).

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