CN211116351U

CN211116351U - Filter and engine assembly

Info

Publication number: CN211116351U
Application number: CN201921646180.5U
Authority: CN
Inventors: 崔永; 王超; 赵建洲; 李珊珊
Original assignee: Weichai Power Co Ltd
Current assignee: Weichai Power Co Ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-07-28
Anticipated expiration: 2029-09-29

Abstract

The utility model relates to the field of filters, and discloses a filter and an engine assembly, wherein the filter comprises a filter cover and a filter tank detachably connected with the filter cover, one of the filter cover and the filter tank is provided with an annular sealing groove, a first sealing ring in interference fit with the annular sealing groove is arranged in the annular sealing groove, and the first sealing ring is clamped between the filter cover and the filter tank; the side wall of the annular sealing groove is provided with a first hole extending along the depth direction of the annular sealing groove, and the first hole is communicated with the annular sealing groove. The utility model discloses set up first hole on the lateral wall of ring seal groove, when changing first sealing washer, can adopt to insert first downthehole with the instrument that has the first sealing washer of dismantlement now, then act on first sealing washer to in-process that can avoid dismantling first sealing washer simultaneously sets up the filter cap or the strain jar of first sealing washer by first sealing washer extracting tool fish tail, has improved dismouting efficiency in quick dismantlement first sealing washer.

Description

Filter and engine assembly

Technical Field

The utility model relates to a filter field especially relates to a filter and engine assembly.

Background

The filter tank of filter includes canister and filter cover, and in the filter core subassembly of filter located the cavity that canister and filter cover formed, because the filter core on the filter core subassembly need be changed after using a period, so canister and filter cover usually adopt to dismantle the connection, like threaded connection.

To avoid oil leakage, a seal ring is typically provided between the canister and the bowl, and the seal ring also has a seal failure problem, requiring replacement of the seal ring when replacing the filter cartridge on the cartridge assembly.

At present, a sealing ring is installed in a manner that an annular groove is formed in a filter cover and the sealing ring is installed in the sealing ring in an interference fit manner. The sealing ring is installed by adopting the mode, so that the following problems exist: the sealing ring is in interference fit with the annular groove, so that the assembly and disassembly are inconvenient; when the sealing ring is disassembled, the annular groove is easy to scratch, and then the sealing ring which is arranged in the annular groove again is scratched by the scratched annular groove.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a filter and engine assembly can solve the difficult dismouting that the sealing washer adopted the interference fit to exist and very easily the problem of fish tail ring channel when dismantling the sealing washer.

To achieve the purpose, the utility model adopts the following technical proposal:

a filter comprises a filter cover and a filter tank detachably connected with the filter cover, wherein one of the filter cover and the filter tank is provided with an annular sealing groove, a first sealing ring in interference fit with the annular sealing groove is arranged in the annular sealing groove, and the first sealing ring is clamped between the filter cover and the filter tank; and a first hole extending along the depth direction of the annular sealing groove is formed in the side wall of the annular sealing groove, and the first hole is communicated with the annular sealing groove.

As a preferable aspect of the filter, the first hole is provided below the first seal ring.

As a preferable technical solution of the above filter, one of the filter cover and the filter canister is provided with an internal thread, and the other is provided with an external thread matching the internal thread.

As a preferred technical scheme of the filter, the filter also comprises a filter element assembly arranged in a cavity formed by the filter tank and the filter cover, the filter element assembly is connected with the filter cover, a sump oil channel for circulating and filtering the working oil before the filtering and temporarily storing the sump oil formed by the filtering is formed between the filter element assembly and the filter cover, and a sump oil discharge channel is arranged at the lower end of the filter tank;

and an oil discharging assembly is arranged between the dirty oil discharging channel and is used for communicating or disconnecting the dirty oil discharging channel and the dirty oil discharging channel.

As a preferable technical solution of the above filter, the first hole is provided in the filter cover or the filter canister provided with the external thread, and the first hole is located above the external thread and is communicated with the dirty oil passage; when the dirty oil channel is communicated with the dirty oil discharge channel, the first hole is communicated with the outside atmosphere.

As a preferable technical scheme of the filter, the oil drainage assembly comprises an insertion part formed by downward protruding of the lower end of the filter element assembly, and an outer ring formed by upward protruding of the bottom of the filter tank;

the insertion part can be inserted into the outer ring and is in sealing fit with the outer ring, so that the dirty oil channel is disconnected with the dirty oil discharge channel, or the insertion part is separated from the outer ring so that the dirty oil channel is communicated with the dirty oil discharge channel.

As a preferred technical scheme of the above filter, an oil purifying channel for circulating filtered oil is formed in the filter element assembly, the oil discharging assembly further comprises an inner ring formed by upward protruding arrangement of the bottom of the filter tank, and the outer ring is sleeved outside the inner ring; the dirty oil discharge channel is formed between the outer ring and the inner ring, and the height of the upper end surface of the outer ring is lower than that of the upper end surface of the inner ring;

when the first hole can be just communicated with the outside atmosphere or is not completely communicated with the outside atmosphere, the insertion part can be separated from the dirty oil discharge channel and is in sealing fit with the outer peripheral surface of the inner ring, so that the dirty oil discharge channel is communicated with the dirty oil channel, and the dirty oil channel is disconnected with the clean oil channel.

As a preferable technical solution of the above filter, a first sealing member is provided between an inner wall of the outer ring and an outer wall of the insertion portion, and a second sealing member is provided between an outer wall of the inner ring and an inner wall of the insertion portion.

As a preferable aspect of the filter, a plurality of the first holes are provided.

The utility model also provides an engine assembly, including above-mentioned filter.

The utility model has the advantages that: the utility model discloses set up first hole on the lateral wall of ring seal groove, when changing first sealing washer, can adopt to insert first downthehole with the instrument that has the first sealing washer of dismantlement now, then act on first sealing washer to in-process that can avoid dismantling first sealing washer simultaneously sets up the filter cap or the strain jar of first sealing washer by first sealing washer extracting tool fish tail, has improved dismouting efficiency in quick dismantlement first sealing washer.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

FIG. 1 is a schematic view of a filter cover and a filter tank according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a filter cover according to an embodiment of the present invention;

FIG. 3 is an enlarged partial schematic view at A of FIG. 1;

FIG. 4 is a cross-sectional view of a filter according to a second embodiment of the present invention;

FIG. 5 is an enlarged partial schematic view at B in FIG. 4;

FIG. 6 is a schematic structural diagram of a filter element assembly according to a second embodiment of the present invention;

fig. 7 is a schematic structural diagram of a canister according to a second embodiment of the present invention.

In the figure:

1. a filter tank; 11. an inner ring; 12. an outer ring; 13. a dirty oil discharge passage; 14. a clean oil discharge passage;

2. a filter element assembly; 21. a clean oil channel; 22. a plug-in part;

3. a dirty oil channel; 4. a first seal member; 5. a second seal member; 6. a filter cover; 61. a first hole; 7. a first seal ring.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.

Example one

As shown in fig. 1 to 3, the present embodiment provides a filter, including a filter cover 6 and a filter canister 1 detachably connected thereto, one of the filter cover 6 and the filter canister 1 is provided with an annular sealing groove, a first sealing ring 7 in interference fit with the annular sealing groove is arranged in the annular sealing groove, and the first sealing ring 7 is clamped between the filter cover 6 and the filter canister 1; the side wall of the annular sealing groove is provided with a first hole 61 extending along the depth direction of the annular sealing groove, and the first hole 61 is communicated with the annular sealing groove. One, two or more first holes 61 may be provided, and when a plurality of first holes 61 are provided, the plurality of first holes are distributed along the circumferential direction of the annular seal groove. The embodiment is exemplified by providing one first hole 61.

When changing first sealing washer 7, can adopt and will have the instrument of dismantling first sealing washer 7 now to insert first hole 61 in, then act on first sealing washer 7 to in-process that can avoid dismantling first sealing washer 7 simultaneously sets up straining lid 6 or straining jar 1 of first sealing washer 7 by the first sealing washer 7 extracting tool fish tail, has improved dismouting efficiency in first sealing washer 7 is dismantled fast.

In this embodiment, first hole 61 is located the below of first sealing washer 7, can guarantee the effective seal between canister 1 and the filter cover 6 under the prerequisite of guaranteeing the dismouting of being convenient for of first sealing washer 7.

The embodiment also provides an engine assembly comprising the filter.

Example two

The embodiment is optimized on the basis of the first embodiment, and as shown in fig. 4, the filter cover 6 is detachably connected with the filter tank 1. Specifically, one of the filter cover 6 and the filter tank 1 is provided with an internal thread, the other one is provided with an external thread matched with the internal thread, and the filter cover 6 and the filter tank 1 are in threaded connection through the matching of the internal thread and the external thread. In this embodiment, an internal thread is provided on the filter cap 6 and an external thread is provided on the canister 1.

As shown in fig. 5 to 7, the filter further includes a filter element assembly 2 disposed in a chamber formed by the filter canister 1 and the filter cover 6, the filter element assembly 2 is connected to the filter cover 6, a dirty oil passage 3 for circulating the working oil before filtering and temporarily storing the dirty oil after filtering is formed between the filter element assembly 2 and the filter cover 6, and a dirty oil discharge passage 13 is disposed at the lower end of the filter canister 1; an oil discharging assembly is arranged between the dirty oil channel 3 and the dirty oil discharging channel 13 and used for disconnecting or communicating the dirty oil channel 3 and the dirty oil discharging channel 13. When sump oil passageway 3 and sump oil discharge passageway 13 do not communicate, the filter can normally work, and when sump oil passageway 3 and sump oil discharge passageway 13 communicate, the sump oil that filters formation in the sump oil passageway 3 will discharge through sump oil discharge passageway 13, consequently need regularly with the sump oil discharge of filtering formation in the sump oil passageway 3.

The dirty oil that will filter formation in the dirty oil passageway 3 is discharged when changing filter element group spare 2 usually, can stop sending into fluid in the filter before changing filter element group spare 2, and along with the continuous discharge of clean oil in the filter, the pressure in the cavity that straining jar 1 and filter cover 6 formed will reduce gradually. When not establishing above-mentioned first hole 61, in the twinkling of an eye that first sealing washer 7 sealing performance became invalid, the pressure in the cavity that straining jar 1 and straining lid 6 formed was less than atmospheric pressure, and the threaded connection between straining lid 6 and the straining jar 1 still has certain sealed effect, even dirty oil passageway 3 and dirty oil discharge passageway 13 intercommunication, also can appear the dirty oil in the dirty oil passageway 3 and can not get into the problem in the dirty oil discharge passageway 13 smoothly, reduce dirty oil discharge speed.

For this reason, in the present embodiment, the first hole 61 is provided in the canister 1 provided with the male screw, and the first hole 61 is provided above the male screw so that the first hole 61 communicates with the dirty oil passage 3.

In the process of screwing the filter cover 1, the oil discharge assembly enables the dirty oil channel 3 to be communicated with the dirty oil discharge channel 13, and in the moment that the first hole 61 is just communicated with the outside atmosphere, the dirty oil channel 3 is communicated with the atmosphere through the first hole 61, so that the pressure in the dirty oil channel 3 is equal to the atmospheric pressure, the dirty oil in the dirty oil channel 3 is ensured to be smoothly discharged, the dirty oil discharge speed is improved, and the time consumed by dirty oil discharge is shortened.

Specifically, the oil drain assembly comprises a plug-in part 22 formed by downward protruding of the lower end of the filter element assembly 2, and an outer ring 12; the insertion part 22 can be inserted into and hermetically fitted with the outer ring 12, so that the dirty oil channel 3 is disconnected from the dirty oil discharge channel 13, or the insertion part is separated from the outer ring 12 so that the dirty oil channel 3 is communicated with the dirty oil discharge channel 13.

In this embodiment, the insertion portion 22 is inserted into the outer ring 12 to make the inner wall of the outer ring 12 fit with the outer wall of the insertion portion 22. In order to improve the sealing effect, a first sealing element 4 is arranged between the inner wall of the outer ring 12 and the outer wall of the plug part 22, and the first sealing element 4 can be a sealing ring. In other embodiments of the present invention, the outer ring 12 can be inserted into the insertion portion 22.

When inserting portion 22 inserts in outer loop 12, guarantee sealed effect through first sealing member 4 between inserting portion 22 and the outer loop 12, make dirty oil passageway 3 and sump oil discharge passageway 13 not communicate, when inserting portion 22 breaks away from outer loop 12, dirty oil passageway 3 and sump oil discharge passageway 13 will communicate to the sump oil in the dirty oil passageway 3 discharges through sump oil discharge passageway 13.

In this embodiment, an oil purifying channel 21 for passing filtered oil is formed in the filter element assembly 2, the oil discharging assembly further includes an inner ring 11 formed by upward protruding arrangement of the bottom of the filter tank 1, and the outer ring 12 is sleeved outside the inner ring 11; the height of the upper end surface of the outer ring 12 is lower than that of the inner ring 11.

Dirty oil is stored on the outer side of the outer ring 12, the inserting part 22 is annular, the clean oil discharge channel 14 which can be communicated with the clean oil channel 21 is arranged on the inner side of the inner ring 11, and the dirty oil discharge channel 13 is formed between the outer ring 12 and the inner ring 11. In this embodiment, the insertion portion 22 is inserted between the outer ring 12 and the inner ring 11, so that the outer wall of the insertion portion 22 is fitted to the inner wall of the outer ring 12, and the inner wall of the insertion portion 22 is fitted to the outer wall of the inner ring 11, so that the dirty oil passage 3 and the dirty oil discharge passage 13 are not communicated.

The insertion part 22 can be inserted into the dirty oil discharge channel 13 to disconnect the dirty oil discharge channel 13 and the dirty oil channel 3, so that the filter can work normally; the insertion part 22 can be separated from the dirty oil discharge channel 13 and is in sealing fit with the outer peripheral surface of the inner ring 12, the dirty oil channel 3 is disconnected from the clean oil channel 21, dirty oil in the dirty oil channel 3 is prevented from entering the clean oil channel 21, and clean oil in the clean oil channel 21 is prevented from being secondarily polluted; meanwhile, the plug-in part 22 is separated from the dirty oil discharge channel 13, so that the dirty oil discharge channel 13 is communicated with the dirty oil channel 3, and dirty oil in the dirty oil channel 3 is discharged through the dirty oil discharge channel 13.

In order to improve the sealing effect, as shown in fig. 5, a second sealing member 5 is disposed between the outer wall of the inner ring 11 and the inner wall of the insertion portion 22, the second sealing member 5 is a sealing ring, and at least two axially distributed sealing rings are formed by vulcanizing the inner wall and the outer wall of the insertion portion 22. This embodiment realizes through first sealing member 4 and second sealing member 5 that the high-efficient sealed between clean oil passageway 21 and the sump oil passageway 3 when guaranteeing the filter normal operating is sealed between clean oil passageway 21 and the sump oil passageway 3.

It should be noted that the axial length of the outer ring 12 is ensured not to interfere with the mounting of the filter element assembly 2, while the upper end of the filter element assembly 2 is in contact with the filter cover 6, so as to ensure that the seal between the spigot 22 and the inner ring 11 is effective.

The utility model discloses an in other embodiments, can also only adopt the fuel outlet valve to replace the grafting portion in the above-mentioned oil drain subassembly. The structure of the oil drain valve is the prior art and is not limited in detail here.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims

1. A filter comprises a filter cover (6) and a filter tank (1) detachably connected with the filter cover, wherein one of the filter cover (6) and the filter tank (1) is provided with an annular sealing groove, a first sealing ring (7) in interference fit with the annular sealing groove is arranged in the annular sealing groove, and the first sealing ring (7) is clamped between the filter cover (6) and the filter tank (1); the novel sealing structure is characterized in that a first hole (61) extending along the depth direction of the annular sealing groove is formed in the side wall of the annular sealing groove, and the first hole (61) is communicated with the annular sealing groove.

2. A filter according to claim 1, characterised in that the first aperture (61) is provided below the first sealing ring (7).

3. A filter according to claim 2, wherein one of the filter cover (6) and the filter canister (1) is provided with an internal thread and the other is provided with an external thread for engagement with the internal thread.

4. The filter as claimed in claim 3, further comprising a filter element assembly (2) arranged in a cavity formed by the filter tank (1) and the filter cover (6), wherein the filter element assembly (2) is connected to the filter cover (6), a sump oil channel (3) for circulating working oil before filtering and temporarily storing sump oil formed by filtering is formed between the filter element assembly (2) and the filter cover (6), and a sump oil discharge channel (13) is arranged at the lower end of the filter tank (1);

and an oil drainage assembly is arranged between the dirty oil channel (3) and the dirty oil discharge channel (13) and is used for communicating or disconnecting the dirty oil channel (3) and the dirty oil discharge channel (13).

5. A filter according to claim 4, characterised in that the first hole (61) is provided in the filter cover (6) or the filter canister (1) provided with the external thread, the first hole (61) being located above the external thread and communicating with the dirty oil channel (3); when the dirty oil channel (3) is communicated with the dirty oil discharge channel (13), the first hole (61) is communicated with the outside atmosphere.

6. A filter as claimed in claim 5, wherein the oil drain assembly comprises a plug-in part (22) formed by the downward projection of the lower end of the filter element assembly (2), and an outer ring (12) formed by the upward projection of the bottom of the filter tank (1);

the insertion part (22) can be inserted into the outer ring (12) and is in sealing fit with the outer ring, so that the dirty oil channel (3) is disconnected from the dirty oil discharge channel (13), or the insertion part is separated from the outer ring (12) to enable the dirty oil channel (3) to be communicated with the dirty oil discharge channel (13).

7. The filter of claim 6, wherein a clean oil channel (21) for passing filtered clean oil is formed in the filter element assembly (2), the oil drainage assembly further comprises an inner ring (11) formed by upward protruding arranged at the bottom of the filter tank (1), and the outer ring (12) is sleeved outside the inner ring (11); the dirty oil discharge channel (13) is formed between the outer ring (12) and the inner ring (11), and the height of the upper end surface of the outer ring (12) is lower than that of the upper end surface of the inner ring (11);

when the first hole (61) can be just communicated with the outside atmosphere or is not completely communicated with the outside atmosphere, the insertion part (22) can be separated from the dirty oil discharge channel (13) and is in sealing fit with the outer peripheral surface of the inner ring (11), so that the dirty oil discharge channel (13) is communicated with the dirty oil channel (3), and the dirty oil channel (3) is disconnected with the clean oil channel (21).

8. A filter according to claim 7, characterised in that a first seal (4) is provided between the inner wall of the outer ring (12) and the outer wall of the spigot (22), and a second seal (5) is provided between the outer wall of the inner ring (11) and the inner wall of the spigot (22).

9. A filter according to any one of claims 1 to 8, characterised in that the first aperture (61) is provided in plurality.

10. An engine assembly comprising a filter as claimed in any one of claims 1 to 9.