Oil filter mounted on thin oil pump

Abstract

The utility model relates to an oil filter installed on a thin oil pump, which comprises a filter seat, a shell, an adapter seat, a framework and a filter element, the bottom of the filter seat is provided with an oil inlet channel and an oil outlet channel which are used for being externally connected with a pipeline, the adapter seat is connected with the oil outlet channel in a sealing mode, the adapter seat is fixedly connected with the filter element through the framework, and the filter seat is detachably connected with the shell and forms a cavity. The oil filter is characterized in that the oil inlet channel and the oil outlet channel are distributed at the position of the filter seat in a concentrated mode, pipelines needing to be externally connected are all arranged on one side of the oil filter, the filter element is sleeved with the shell, the cavity is divided into an outer cavity body and an inner cavity body through the filter element, the oil inlet channel is communicated with the outer cavity body, and the oil outlet channel is communicated with the inner cavity body through the adapter seat. Therefore, the axial mounting space of the oil filter is saved; and when the filter element needs to be cleaned, the filter element can be taken out and cleaned only by disassembling the shell, so that the difficulty in maintaining the oil filter is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of oil filters, and in particular to an oil filter installed on a thin oil pump. Background Technology

[0002] Thin oil pumps are mainly used to deliver thin oil-based lubricating oil to equipment parts that require lubrication, ensuring normal operation and extending service life. They are characterized by compact structure, stable operation, and high delivery efficiency. To prevent blockage of the oil circuit inside the thin oil pump, an oil filter is usually installed at the oil inlet. However, there are shortcomings in installing traditional grease filters. For example, patent number CN202322263514.3 discloses an external grease filter. Since the oil inlet and outlet of the filter are located on the sides of the housing and filter base respectively, sufficient installation space needs to be left for the external inlet and outlet pipes. This results in a large axial installation space required for the filter. Furthermore, when cleaning the filter element, the housing needs to be removed along with the pipes, which is inconvenient. Utility Model Content

[0003] To overcome the shortcomings of the prior art, the technical solution adopted by this utility model is: an oil filter installed on a thin oil pump, including a filter base, a housing, an adapter, a frame, and a filter element. The bottom of the filter base is provided with an oil inlet channel and an oil outlet channel for connecting to an external pipeline. The adapter is sealed and connected to the oil outlet channel. The filter element is fixedly connected to the adapter via the frame. The housing is detachably connected to the filter base to form a cavity. The housing is sleeved on the outside of the filter element. The cavity is divided into an outer cavity and an inner cavity by the filter element. The oil inlet channel is connected to the outer cavity, and the oil outlet channel is connected to the inner cavity via the adapter.

[0004] By adopting the above technical solution, the oil inlet and outlet channels are concentrated at the filter base, so that all external pipes are located on one side of the oil filter, thereby saving the axial installation space of the oil filter; when the filter element needs to be cleaned, the housing can be removed and the filter element can be cleaned, reducing the difficulty of maintaining the oil filter.

[0005] The present invention is further configured such that the oil outlet includes a central hole and a side hole that are connected to each other, the adapter has an upper ring and a lower ring, the upper ring is fitted with a filter element, the lower ring is fitted with a filter seat through the central hole, and the oil inlet is distributed parallel to one side of the central hole.

[0006] Using the above technical solution, blind holes are drilled on the top and side surfaces of the filter seat to form a connected central hole and side hole. The filter seat has a through hole drilled on one side of the central hole to form an oil inlet channel. The side hole and the outer side of the oil inlet channel are provided with threads for connecting external pipes. Since the side hole and the oil inlet channel are perpendicular, the two sets of external pipes are less likely to interfere with each other.

[0007] The present invention is further configured such that the filter seat has a threaded portion, the housing is threadedly connected to the filter seat through the threaded portion, and a first sealing ring is provided between the threaded portion and the housing.

[0008] Furthermore, the inner diameter of the threaded portion is larger than the outer diameter of the upper ring portion, and an oil passage is formed between the threaded portion and the upper ring portion. The oil inlet passage is connected to the outer cavity through the oil passage.

[0009] Furthermore, the lower ring portion is provided with a second sealing ring.

[0010] Using the above technical solution, lubricating oil fills the outer cavity through the oil inlet and oil passage, enters the inner cavity through the filter element, and then flows out through the adapter and oil outlet. Because the filter element has a cylindrical structure, its oil filtration area is large, making the lubricating oil filling process smoother.

[0011] The present invention is further configured such that the distance between the filter element and the housing is less than the height from the upper ring to the second sealing ring.

[0012] Using the above technical solution, when lubricating oil is injected from the oil inlet towards the outer cavity, it will drive the adapter to move towards the housing. Since the distance between the filter element and the housing is less than the height from the upper ring to the second sealing ring, the filter element will not lose its filtering function when it moves to the top surface of the housing.

[0013] The present invention is further provided that the surface of the skeleton has a plurality of oil holes.

[0014] Using the above technical solution, the frame supports the filter element in a cylindrical structure to prevent the filter element from deforming, and the surface of the frame has an array of oil holes for the flow of filtered lubricating oil.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The oil inlet and outlet channels are concentrated at the filter base, so that all external pipes are located on one side of the oil filter, thereby saving the axial installation space of the oil filter;

[0017] 2. When the filter element needs to be cleaned, simply remove the housing to take out the filter element and clean it, reducing the difficulty of maintaining the oil filter.

[0018] The embodiments of this utility model will be further described below with reference to the accompanying drawings. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of the present invention;

[0020] Figure 2 For the present utility model Figure 1 A magnified view of the central A-direction view;

[0021] Figure 3 For the present utility model Figure 1 A magnified view of the central B-direction view;

[0022] Wherein: 1-Filter seat, 2-House, 3-Adapter seat, 4-Skeleton, 5-Filter element, 6-Oil inlet passage, 7-Oil outlet passage, 8-Outer cavity, 9-Inner cavity, 11-Center hole, 12-Side hole, 13-Thread, 14-Threaded part, 15-First sealing ring, 16-Oil passage, 17-Second sealing ring, 31-Upper ring part, 32-Lower ring part, 41-Oil hole; Detailed Implementation

[0023] like Figure 1 As shown, this embodiment provides an oil filter installed on a thin oil pump, including a filter base 1, a housing 2, an adapter 3, a frame 4, and a filter element 5. The bottom of the filter base 1 is provided with an oil inlet channel 6 and an oil outlet channel 7 for connecting to an external pipeline. The adapter 3 is sealed to the oil outlet channel 7. The adapter 3 is fixedly connected to the filter element 5 through the frame 4. The filter base 1 is detachably connected to the housing 2 to form a cavity. The housing 2 is sleeved on the outside of the filter element 5. The cavity is divided into an outer cavity 8 and an inner cavity 9 through the filter element 5. The oil inlet channel 6 is connected to the outer cavity 8, and the oil outlet channel 7 is connected to the inner cavity 9 through the adapter 3.

[0024] Combination Figure 2 As shown, in this embodiment, the oil outlet 7 includes a central hole 11 and a side hole 12 that are connected. The adapter 3 is provided with an upper ring portion 31 and a lower ring portion 32. The upper ring portion 31 is snapped with a filter element 5, and the lower ring portion 32 is snapped with a filter seat 1 through the central hole 11. The oil inlet 6 is distributed parallel to one side of the central hole 11. Blind holes are drilled on the top and side surfaces of the filter seat 1 to form a connected central hole 11 and a side hole 12. The filter seat 1 has a through hole drilled on one side of the central hole 11 to form the oil inlet 6. The side hole 12 and the outer side of the oil inlet 6 are provided with threads 13 for connecting external pipes. The perpendicularity between the filter element 2 and the oil inlet 6 makes it less likely for the two sets of external pipes to interfere. The filter seat 1 is provided with a threaded part 14, and the housing 2 is threadedly connected to the filter seat 1 through the threaded part 14. A first sealing ring 15 is provided between the threaded part 14 and the housing 2. The inner diameter of the threaded part 14 is larger than the outer diameter of the upper ring 31. An oil passage 16 is formed between the threaded part 14 and the upper ring 31. The oil inlet 6 is connected to the outer cavity 8 through the oil passage 16. A second sealing ring 17 is provided in the lower ring 32. Since the filter element 5 has a cylindrical structure, its oil filtration area is large, making it smoother when adding lubricating oil.

[0025] Combination Figure 3As shown, in this embodiment, the distance L between the filter element 5 and the housing 2 is less than the height H of the upper ring 31 to the second sealing ring 17. When the lubricating oil is injected from the oil inlet 6 toward the outer cavity 8, it will drive the adapter to move toward the housing 2. Since the distance L between the filter element 5 and the housing 2 is less than the height H of the lower ring 32, when the filter element 5 moves to its top surface and abuts against the housing 2, the filtering function of the filter element 5 will not be lost.

[0026] In this embodiment, the surface of the skeleton 4 is provided with a plurality of oil holes 41. The skeleton 4 supports the filter element 5 in a cylindrical structure to prevent the filter element 5 from deforming. The surface of the skeleton 4 has an array of oil holes 41 for the flow of filtered lubricating oil.

[0027] The working principle of this utility model is as follows: lubricating oil enters through the oil inlet channel 6 and fills the outer cavity 8 through the oil passage 16. The lubricating oil is filtered by the filter element 5 and enters the inner cavity 9 through the oil hole 41. The filtered grease then flows out through the adapter 3 and the oil outlet channel 7. Since the oil inlet channel 6 and the oil outlet channel 7 are concentrated at the filter base 1, all external pipes are located on one side of the oil filter, thereby saving the axial installation space of the oil filter. When the filter element 5 needs to be cleaned, the housing 2 can be removed to take out the filter element 5 and clean it, reducing the difficulty of maintaining the oil filter.

[0028] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An oil filter installed on a thin oil pump, characterized in that, The filter includes a filter base (1), a housing (2), an adapter (3), a frame (4), and a filter element (5). The bottom of the filter base (1) is provided with an oil inlet channel (6) and an oil outlet channel (7) for connecting to an external pipeline. The adapter (3) is sealed and connected to the oil outlet channel (7). The adapter (3) is fixedly connected to the filter element (5) through the frame (4). The filter base (1) is detachably connected to the housing (2) to form a cavity. The housing (2) is fitted over the filter element (5). The cavity is divided into an outer cavity (8) and an inner cavity (9) through the filter element (5). The oil inlet channel (6) is connected to the outer cavity (8), and the oil outlet channel (7) is connected to the inner cavity (9) through the adapter (3).

2. The oil filter installed on a thin oil pump according to claim 1, characterized in that: The oil outlet channel (7) includes a central hole (11) and a side hole (12) that are connected. The adapter (3) is provided with an upper ring (31) and a lower ring (32). The upper ring (31) is fitted with a filter element (5), and the lower ring (32) is fitted with a filter seat (1) through the central hole (11). The oil inlet channel (6) is distributed parallel to one side of the central hole (11).

3. An oil filter installed on a thin oil pump according to claim 2, characterized in that: The filter seat (1) is provided with a threaded part (14), and the housing (2) is threadedly connected to the filter seat (1) through the threaded part (14), and a first sealing ring (15) is provided between the threaded part (14) and the housing (2).

4. An oil filter installed on a thin oil pump according to claim 3, characterized in that: The inner diameter of the threaded portion (14) is larger than the outer diameter of the upper ring portion (31). An oil passage (16) is formed between the threaded portion (14) and the upper ring portion (31). The oil inlet (6) is connected to the outer cavity (8) through the oil passage (16).

5. An oil filter installed on a thin oil pump according to claim 2, characterized in that: The lower ring (32) is provided with a second sealing ring (17).

6. An oil filter installed on a thin oil pump according to claim 2, characterized in that: The distance between the filter element (5) and the housing (2) is less than the height between the upper ring (31) and the second sealing ring (17).

7. An oil filter installed on a thin oil pump according to claim 1, characterized in that: The skeleton (4) has several oil holes (41) on its surface.

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