阅读说明：本技术 一种滤清器 (Filter ) 是由 倪成鑫 路明 王次安 王军 胡昌良 杨冰 张超 昂金凤 *** 胡鹏翔 王宏大 于 2019-09-24 设计创作，主要内容包括：本发明公开了一种滤清器。该滤清器包括壳体和滤芯组件,壳体包括呈可拆卸连接的第一壳体和第二壳体,以围设形成容纳腔,容纳腔设有连通至壳体外壁的进油口和出油口；过滤组件设于容纳腔内,容纳腔在过滤组件所在位置形成过滤通道,过滤组件用于对流经过滤通道的油液进行过滤。通过将滤清器的壳体设置为由可拆卸连接的第一壳体和第二壳体组成,且第一壳体和第二壳体围设形成供过滤组件容设的容纳腔,以使得当其中任一壳体被拆卸下来时,另一壳体都可以用来接纳从滤芯组件上残留的流下来的油,以免油滴落至地上,造成环境污染,且落入壳体内的油也可方便再回收利用,以节约资源。(The invention discloses a filter. The filter comprises a shell and a filter element assembly, wherein the shell comprises a first shell and a second shell which are detachably connected so as to form an accommodating cavity in a surrounding manner, and the accommodating cavity is provided with an oil inlet and an oil outlet which are communicated to the outer wall of the shell; the filter assembly is arranged in the accommodating cavity, the accommodating cavity forms a filter passage at the position of the filter assembly, and the filter assembly is used for filtering oil flowing through the filter passage. Set up to constitute by first casing and the second casing of dismantling the connection through the casing with the filter, and first casing and second casing enclose to establish and supply the filter element to hold the chamber of establishing, so that when wherein arbitrary casing is dismantled, another casing all can be used for accepting the oil that flows down from remaining on the filter element group spare, so as to avoid oil to drip to the ground, cause environmental pollution, and the oil that falls into in the casing also can conveniently recycle, in order resources are saved.)

1. A filter, comprising:

the oil inlet and the oil outlet are communicated to the outer wall of the shell; and the number of the first and second groups,

the filter assembly is arranged in the accommodating cavity, the accommodating cavity forms a filter passage at the position of the filter assembly, and the filter assembly is used for filtering oil flowing through the filter passage.

2. The filter according to claim 1, wherein the side portion of the first housing and the side portion of the second housing are formed with a first engagement surface and a second engagement surface which abut against each other, respectively, and one of the first engagement surface and the second engagement surface is provided with an internal thread, and the other is provided with an external thread which is engaged with the internal thread to screw the first housing and the second housing.

3. The filter of claim 2, wherein the first engagement surface is provided with the external thread, the second engagement surface is provided with the internal thread, and the first engagement surface is provided with an annular projecting section projecting therefrom so as to cover a port edge of the second housing when the internal thread is engaged with the external thread.

4. A filter as claimed in claim 2, wherein one of said first and second engagement faces is convexly provided with an annular step, said annular step being concavely provided with an annular recess;

the filter also comprises a sealing element which is embedded in the annular groove and is abutted against the other one of the first joint surface and the second joint surface.

5. The filter of claim 1, wherein the filter assembly comprises an upper clamping plate, a lower clamping plate, and a filter paper and a filter cartridge clamped between the upper clamping plate and the lower clamping plate, the filter paper is arranged around the periphery of the filter cartridge, the filter paper is communicated with the oil inlet, and the filter cartridge is communicated with the oil outlet, so that oil can enter from the oil inlet, sequentially pass through the filter paper and the filter cartridge, and then flow out from the oil outlet.

6. The filter of claim 5, wherein the oil inlet and the oil outlet are spaced apart from each other at the bottom of the second housing, the bottom of the second housing is provided with a first annular protrusion protruding inward, the first annular protrusion is disposed around the oil outlet, and the lower clamp plate is formed with a through hole communicating the filter cartridge with the oil outlet;

the filtering component is elastically and telescopically arranged in the accommodating cavity along the vertical direction so as to drive the lower clamping plate to stretch in the direction close to or far away from the first annular bulge, and when the lower clamping plate is separated from the first annular bulge, the oil inlet is directly communicated with the oil outlet.

7. The filter of claim 6, wherein the bottom of the lower clamping plate is provided with a second annular bulge protruding outwards, the second annular bulge is arranged around the periphery of the through hole, the second annular bulge is inserted inside the first annular bulge, and the side wall of the second annular bulge is provided with through holes arranged along the circumferential direction.

8. The filter of claim 6, further comprising a spring member disposed between the upper clamp plate and the top of the first housing.

9. The filter of claim 5, wherein an annular liquid accumulation groove is formed in one end face of the lower clamping plate facing the filter paper, and the annular liquid accumulation groove is arranged around the outer side of the filter paper.

10. The filter of claim 3, wherein the bottom of the second housing is provided with a connection interface protruding outwards, and the inner side wall of the connection interface is provided with an internal thread, wherein the internal thread at the connection interface is opposite to the thread direction of the internal thread at the second joint surface.

Technical Field

The invention relates to the technical field of engine filtration, in particular to a filter.

Background

The filter means a fitting functioning to filter foreign substances or gas through filter paper. Generally referred to as an automobile filter, is an accessory of an engine. The filter has different filtering functions including oil filter, fuel filter, air conditioner filter, etc. For example, in an oil filter, the oil filter is located in an engine lubricating system, and an oil pump is located upstream of the oil filter, and parts of the engine which need to be lubricated are located downstream of the oil filter, so that oil pumped by the oil pump is filtered and then delivered to parts to be lubricated.

The traditional filter does not produce the oil exposure phenomenon in order to guarantee the filter in the course of the work, generally wraps up filter element group spare with a monoblock casing, but such filter dismantles inconveniently when maintaining or repairing, and the in-process of dismantling makes the residual oil in the filter leak easily, causes the polluted environment to the recycle nature of residual oil is relatively poor.

Disclosure of Invention

In order to solve the above technical problems, the present invention provides a filter, which aims to solve the problem that the existing filter is easy to leak oil during maintenance.

In order to achieve the above object, the present invention provides a filter including:

the oil inlet and the oil outlet are communicated to the outer wall of the shell; and the number of the first and second groups,

the filter assembly is arranged in the accommodating cavity, the accommodating cavity forms a filter passage at the position of the filter assembly, and the filter assembly is used for filtering oil flowing through the filter passage.

Optionally, a first joint face and a second joint face which are mutually abutted are correspondingly formed on the side of the first shell and the side of the second shell, one of the first joint face and the second joint face is provided with an internal thread, and the other joint face is provided with an external thread which is matched with the internal thread to screw the first shell and the second shell.

Optionally, the external thread is provided on the first joint surface, the internal thread is provided on the second joint surface, an annular protruding section is convexly provided on the first joint surface, and the annular protruding section is used for covering the port edge of the second shell when the internal thread is matched with the external thread.

Optionally, one of the first engaging surface and the second engaging surface is provided with a protruding annular step, and the annular step is provided with a recessed annular groove;

the filter also comprises a sealing element which is embedded in the annular groove and is abutted against the other one of the first joint surface and the second joint surface.

Optionally, the filter assembly includes an upper clamp plate, a lower clamp plate, and filter paper and a filter cartridge clamped between the upper clamp plate and the lower clamp plate, the filter paper is arranged around the periphery of the filter cartridge, the filter paper is communicated with the oil inlet, the filter cartridge is communicated with the oil outlet, so that oil can enter from the oil inlet, sequentially pass through the filter paper and the filter cartridge, and then flow out from the oil outlet.

Optionally, the oil inlet and the oil outlet are arranged at the bottom of the second housing at an interval, a first annular protrusion is arranged at the bottom of the second housing in an inward protruding manner, the first annular protrusion surrounds the periphery of the oil outlet, and a via hole communicating the filter cartridge with the oil outlet is formed in the lower clamping plate;

the filtering component is elastically and telescopically arranged in the accommodating cavity along the vertical direction so as to drive the lower clamping plate to stretch in the direction close to or far away from the first annular bulge, and when the lower clamping plate is separated from the first annular bulge, the oil inlet is directly communicated with the oil outlet.

Optionally, the bottom of lower plate is equipped with the second annular arch to the evagination, the second annular arch encloses to be located week side of via hole, just the second annular arch is inserted and is located the bellied inboard of first annular, the bellied lateral wall of second annular is equipped with the through-hole of seting up along circumference.

Optionally, the filter further comprises a spring member disposed between the upper plate and the top of the first housing.

Optionally, an annular liquid accumulation groove is formed in the surface, where the filter paper is clamped by the lower clamping plate, and the annular liquid accumulation groove is surrounded on the outer side of the filter paper.

Optionally, the bottom of second casing is equipped with the connection interface to the evagination, the inside wall of connecting the interface is equipped with the internal thread, wherein, the internal thread of connection interface with locate the internal thread's of second composition face department screw thread direction is opposite setting.

According to the technical scheme provided by the invention, the shell of the filter is composed of the first shell and the second shell which are detachably connected, and the first shell and the second shell are surrounded to form the accommodating cavity for accommodating the filter assembly, so that when any one of the shells is detached, the other shell can be used for accommodating the oil which is remained on the filter assembly and flows down, the oil is prevented from dropping to the ground to cause environmental pollution, and the oil falling into the shell can be conveniently recycled, so that resources are saved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, 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 structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural view of a filter according to an embodiment of the present disclosure;

FIG. 2 is a schematic cross-sectional view of the filter of FIG. 1;

FIG. 3 is a schematic structural view of the second housing of FIG. 1;

fig. 4 is a schematic structural view of the lower splint of fig. 1.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Filter device	31	Upper splint
1	First shell	32	Lower splint
				11	First joint surface	321	Via hole
12	Annular convex section	322	Second annular bulge
				13	Annular step	322a	Through hole
2	Second shell	323	Annular liquid accumulation tank
				21	Second joint surface	33	Filter paper
22	Oil inlet	34	Filter cartridge
				23	Oil outlet	4	Sealing element
24	A first annular projection	5	Spring element
				3	Filter assembly

The object of the present invention, its functional characteristics and advantageous effects will be further described with reference to the following embodiments and drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indication is involved in the embodiment of the present invention, the directional indication is only used for explaining the relative positional relationship, the motion situation, and the like between the components in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The filter means a fitting functioning to filter foreign substances or gas through filter paper. Generally referred to as an automobile filter, is an accessory of an engine. The filter has different filtering functions including oil filter, fuel filter, air conditioner filter, etc. For example, in an oil filter, the oil filter is located in an engine lubricating system, and an oil pump is located upstream of the oil filter, and parts of the engine which need to be lubricated are located downstream of the oil filter, so that oil pumped by the oil pump is filtered and then delivered to parts to be lubricated.

The traditional filter does not produce the oil exposure phenomenon in order to guarantee the filter in the course of the work, generally wraps up filter element group spare with a monoblock casing, but such filter dismantles inconveniently when maintaining or repairing, and the in-process of dismantling makes the residual oil in the filter leak easily, causes the polluted environment to the recycle nature of residual oil is relatively poor.

In view of the above, the present invention provides a filter, and fig. 1 to 4 show an embodiment of a filter according to the present invention.

Referring to fig. 1 to 2, in the present embodiment, the filter 100 includes a housing and a filter assembly 3, the housing includes a first housing 1 and a second housing 2 detachably connected to each other to form a receiving cavity, and the receiving cavity is provided with an oil inlet 22 and an oil outlet 23 communicated to an outer wall of the housing; the filter assembly 3 is arranged in the accommodating cavity, the accommodating cavity forms a filter passage at the position of the filter assembly 3, and the filter assembly 3 is used for filtering oil flowing through the filter passage.

It should be noted that, the first housing 1 and the second housing 2 both have side walls to be arranged in a cylinder with one end closed, and two ends of the filter assembly 3 are respectively accommodated in the first housing 1 and the second housing 2, so that when the first housing 1 or the second housing 2 is detached, the other corresponding side wall of the second housing 2 or the side wall of the first housing 1 is arranged outside the filter assembly 3 in a surrounding manner, so as to prevent oil from dropping to other positions outside the housing.

In the technical scheme provided by the invention, the shell of the filter 100 is composed of the first shell 1 and the second shell 2 which are detachably connected, and the first shell 1 and the second shell 2 are surrounded to form the accommodating cavity for accommodating the filter assembly 3, so that when any one of the shells is detached, the other shell can be used for accommodating the oil which flows down from the filter element assembly, the oil is prevented from dripping to the ground to cause environmental pollution, and the oil falling into the shell can be conveniently recycled, thereby saving resources.

The lateral part of first casing 1 with the lateral part of second casing 2 corresponds and is formed with first composition surface 11 and the second composition surface 21 of mutual butt, first composition surface 11 with one of them seting up the internal thread of second composition surface 21, and wherein another seting up the external screw thread, the external screw thread with the internal thread cooperatees, with the spiro union is fixed first casing 1 with second casing 2.

In this embodiment, the side of the first casing 1 and the side of the second casing 2 are correspondingly formed with a first joint surface 11 and a second joint surface 21 which are abutted against each other, that is, a casing is sleeved on the outer side of another casing, one of the first joint surface 11 and the second joint surface 21 is provided with an internal thread, and the other is provided with an external thread, which is matched with the internal thread to fix the first casing 1 and the second casing 2 by screwing, so that the first casing 1 and the second casing 2 can be disassembled.

It is obvious that the connection mode of the first casing 1 and the second casing 2 is not limited to the above one, and there are various detachable connection modes, and the connection structure is relatively simple, and a detailed description thereof is omitted.

Further, first composition surface 11 is seted up the external screw thread, second composition surface 21 is seted up the internal thread, first composition surface 11 is protruding to be equipped with annular protruding section 12, annular protruding section 12 is used for the internal thread with during the external screw thread phase cooperation, cover the port mouth edge setting of second casing 2 to further seal the junction, prevent to hold the fluid of intracavity and leak outward. The protruding length of the annular protruding section 12 is not limited, so as to at least cover the port opening edge of the second housing 2, and certainly, the protruding length may be longer, or even extend out of the port opening edge of the second housing 2, or the portion extending out of the port opening edge of the second housing 2 is bent to cover the side wall of the port opening edge of the second housing 2, so that the sealing effect is better.

In the present embodiment, one of the first engagement surface 11 and the second engagement surface 21 is provided with a protruding annular step 13, and the annular step 13 is provided with a recessed annular groove; the filter 100 further comprises a sealing element 4, wherein the sealing element 4 is embedded in the annular groove and abuts against the other one of the first joint surface 11 and the second joint surface 21, and the sealing element 4 is arranged in the annular groove, so that the sealing element 4 cannot fall off when the first shell 1 and the second shell 2 are disassembled, and the filter is convenient to install again. Specifically, in this embodiment, the annular step 13 is disposed on the first housing 1, the first housing 1 and the second housing 2 are disposed in the engine in a vertical direction, the first housing 1 is disposed upward, the second housing 2 is disposed downward, and the sealing member 4 is disposed on the first housing 1, so that when the first housing 1 is disassembled, the sealing member 4 is taken out together to facilitate the replacement of the filter assembly 3.

In this embodiment, the filter assembly 3 includes an upper clamp plate 31, a lower clamp plate 32, and a filter paper 33 and a filter cartridge 34 clamped between the upper clamp plate 31 and the lower clamp plate 32, the filter paper 33 is disposed around the periphery of the filter cartridge 34, the filter paper 33 is communicated with the oil inlet 22, the filter cartridge 34 is communicated with the oil outlet 23, so that oil enters from the oil inlet 22, sequentially passes through the filter paper 33 and the filter cartridge 34, and then flows out from the oil outlet 23, so as to filter the oil flowing into the accommodating cavity, and the filtered oil flows to a component needing lubrication.

Further, referring to fig. 3, the oil inlet 22 and the oil outlet 23 are disposed at the bottom of the second housing 2 at an interval, a first annular protrusion 24 is disposed at the bottom of the second housing 2 in an inward protruding manner, the first annular protrusion 24 is disposed around the oil outlet 23, the lower clamp plate 32 is formed with a through hole 321 communicating the filter cartridge 34 with the oil outlet 23, the filter assembly 3 is elastically and telescopically mounted in the accommodating cavity in an up-down direction, the lower clamp plate 32 is disposed toward the first annular protrusion 24 and is driven to expand and contract in a direction close to or away from the first annular protrusion 24, when the lower clamp plate 32 is separated from the first annular protrusion 24, the oil inlet 22 is directly communicated with the oil outlet 23, the filter assembly 3 is elastically and telescopically mounted in the accommodating cavity in an axial direction of the filter cartridge 34, when the lower clamp plate 32 is pressed against the first annular protrusion 24, the filter assembly 3 is in a filtering state, that is, oil entering the accommodating cavity from the oil inlet 22 flows through the filter paper and the filter cartridge and then flows out from the oil outlet 23, and when the lower clamp plate 32 and the first annular protrusion 24 are separately arranged, the filter assembly 3 is in an oil return state, that is, oil entering the accommodating cavity from the oil inlet 22 directly flows out from the oil outlet 23 from the gap between the lower clamp plate 32 and the first annular protrusion 24, so as to ensure the normal oil requirement of each component.

In this embodiment, referring to fig. 1 and 4, the bottom of the lower plate 32 is provided with a second annular protrusion 322 protruding outward, the second annular protrusion 322 surrounds the periphery of the via hole 321, the second annular protrusion 322 is inserted into the inner side of the first annular protrusion 24, and the sidewall of the second annular protrusion 322 is provided with a through hole 322a formed along the circumferential direction. When the engine is over-protected or the filter assembly 3 is blocked, the oil pressure at the lower end of the accommodating cavity is too high to jack the filter assembly 3 upwards, so that the through hole 322a on the lower clamping plate 32 is exposed, and the oil directly flows through the through hole 322a from the oil inlet 22 and then directly flows out from the oil outlet 23.

The filter 100 further comprises a spring member 5, the spring member 5 is disposed between the upper clamping plate 31 and the top of the first casing 1, and the spring member 5 extends and retracts along the accommodating cavity in the up-down direction, so that the filter assembly 3 can move in the accommodating cavity in the up-down direction. Of course, the filter assembly 3 can be elastically and telescopically installed in the accommodating cavity in various manners, in another embodiment, the filter assembly 3 and the first housing 1 can be connected by a rubber member, and in yet another embodiment, the filter assembly 3 and the first housing 1 can be connected by a telescopic rod. Through spring member 5's connected mode in this application, simple structure, and the equipment of also being convenient for, in this application, the top of punch holder 31 still is provided with a mounting groove, for spring member 5 holds and establishes, in order to save space.

When the engine is maintained, the first shell 1 is unscrewed, the first shell 1 is connected with the spring piece 5, and the elastic force of the spring piece 5 is attenuated, so that the compression state of the filter element assembly disappears; and have the air follow first casing 1 with clearance between the second casing 2 gets into filter element group spare, inside the inside fluid after filtering of filter element group spare can flow back fast inside the engine body, the filter paper 33 outside does not have filterable fluid also can pass through the filter core and slowly descend the liquid level, only needs to change filter element group spare during the maintenance, and all the other parts are all can be general.

In this embodiment, lower plate 32 centre gripping the surface of filter paper 33 is equipped with an annular ponding groove 323, annular ponding groove 323 encloses to be located the filter paper 33 outside, just the inside wall of annular ponding groove 323 is the laminating filter paper 33 lateral surface sets up, so that the follow impurity that flows down on the filter paper 33 can fall into in the annular ponding groove 323 to collect the processing, and change during the filter element group spare, can take impurity out in the lump, can effectively promote next filter element group spare life.

The bottom of second casing 2 is equipped with the connection interface to the evagination, the inside wall of connecting the interface is equipped with the internal thread, in order to be used for with on filter spiro union to oil circuit pipeline or other equipment, wherein, the internal thread of connecting the interface with locate the internal thread screw thread direction of second composition face 21 department is opposite setting, in order to prevent unscrewing first casing 1 or during second casing 2, it also is unscrewed simultaneously to connect the interface.

The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures made by using the contents of the specification and the drawings of the present invention, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.