CN202605838U - Oil filter and air compressor - Google Patents

Oil filter and air compressor Download PDF

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Publication number
CN202605838U
CN202605838U CN2012202738168U CN201220273816U CN202605838U CN 202605838 U CN202605838 U CN 202605838U CN 2012202738168 U CN2012202738168 U CN 2012202738168U CN 201220273816 U CN201220273816 U CN 201220273816U CN 202605838 U CN202605838 U CN 202605838U
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CN
China
Prior art keywords
retainer
support stand
oil strainer
rear support
diameter
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Expired - Lifetime
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CN2012202738168U
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Chinese (zh)
Inventor
不公告发明人
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Zhejiang Sanhua Intelligent Controls Co Ltd
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Zhejiang Sanhua Refrigeration Group Co Ltd
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Priority to CN2012202738168U priority Critical patent/CN202605838U/en
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Publication of CN202605838U publication Critical patent/CN202605838U/en
Anticipated expiration legal-status Critical
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Abstract

The utility model discloses an oil filter. Ends of a filter element of the oil filter are supported by retainers and support frames, an annular fixing ring with folded edges is arranged between the rear retainer and the rear support frame, a positioning boss is arranged in the middle of the rear retainer, a second through hole is arranged in the middle of the positioning boss, the rear support frame can penetrate through the second through hole, and the fixing ring and the positioning boss are in interference fit with each other by means of sleeving; and the rear retainer, the rear support frame and the fixing ring are matched with one another to form a fully closed annular groove, and a sealing ring is disposed in the annular groove. When the oil filter is used for filtering, liquid flows into a gap between the filter element and a shell, then flows into a through hole of the filter element after being filtered, and flows out of the oil filter. Parts inside the oil filter cannot fail when the oil filter bears high pressure, and the oil filter has a good sealing effect. The utility model further discloses an air compressor comprising the oil filter.

Description

A kind of oil strainer and air compressor
Technical field
The utility model belongs to the manufacturing of refrigeration system accessory, particularly relates to a kind of oil strainer.In addition, the utility model also relates to a kind of air compressor that comprises above-mentioned oil strainer.
Background technology
Fluid in the engineering machinery oil circuit is removed impurity through oil strainer usually, and the oil strainer in the refrigeration system is a kind of oily filter, is usually located on the return line of compressor.
In the refrigeration system; The mixture of cold-producing medium and refrigeration oil is from the import that the back gets into oil eliminator of coming out of said compressor, and after oil eliminator separated, cold-producing medium was under " not having oil " state in the entering condenser; Refrigeration oil is then got back in the compressor after oil strainer filters; Oil strainer can filter out the impurity in the refrigeration oil, prevents that the impurity in the refrigeration oil from damaging the movable part of compressor, thus guarantee refrigeration system can be effectively, safe operation.
Please refer to Fig. 1 to Fig. 3; Fig. 1 is the structural representation of a kind of typical oil strainer in the prior art; Fig. 2 is the operation principle sketch map of oil strainer shown in Figure 1, and Fig. 3 is rear support stand in the oil strainer shown in Figure 1, back retainer and sealing ring assembled construction sketch map.
Oil strainer comprises housing 1, filter core 2, drive end bearing bracket 31, rear end cap 32, preceding retainer 41, back retainer 42, front support stand 51, rear support stand 52, inlet union 61, outlet connection 62, preceding sealing ring 71, back sealing ring 72, spring 8 and glue layer 10 etc.; The preceding retainer 41 at filter core 2 two ends is supported by front support stand 51 and rear support stand 52 respectively with back retainer 42; Inlet union 61 is welded with drive end bearing bracket 31 and is fixed, and outlet connection 62 is fixing with rear end cap 32 welding, and drive end bearing bracket 31 and rear end cap 32 are fixed in the two ends of housing 1 respectively; Have preceding sealing ring 71 between preceding retainer 41 and the front support stand 51, have back sealing ring 72 between back retainer 42 and the rear support stand 52.
Back retainer 42 comprises end face 421; End face 421 is fitted with the end of filter core 2; The middle part of end face 421 has the through hole 422 that can supply rear support stand 52 to pass through, and end face 421 circumferential outer periphery are equipped with the peripheral flanging 423 of ring-type, inwardly enclose in week to be equipped with and enclose flanging 424 in the ring-type; Peripheral flanging 423 is used for filter core 2 is fixed, and makes filter core 2 just fall into back retainer 42 and obtains spacing and fixing; Back retainer 42 can be through interior end of enclosing flanging 423 and peripheral flanging 424 suit filter cores 2, in enclose flanging 423 and can make back retainer 42 be installed in the end of filter core 2 easily with peripheral flanging 424.In order to obtain better locating effect, the two ends of filter core 2 all scribble glue layer 10.
Rear support stand 52 is the T font structure that there is through hole at the middle part substantially, has the first pedestal part 52a and the first through-hole section 52b; Back sealing ring 72 middle parts are provided with through hole, and its cross section is I-shape construction, the second pedestal part 72a, the 3rd pedestal part 72c are arranged and connect the second pedestal part 72a and the second through-hole section 72b of the 3rd pedestal part 72c; Second through hole, 422 diameters of back retainer 42 adapt with the first through-hole section 72b of back sealing ring 72; The through-hole diameter of the through-hole diameter of back sealing ring 72 and rear support stand 52 adapts; Make back retainer 42 make back sealing ring 72 can be sleeved on the outer wall of the first through-hole section 52b of rear support stand 52 through the interior outer wall that encloses flanging 424 against the second through-hole section 72b that is sleeved on back sealing ring 72; Back sealing ring 72, back retainer 42 and rear support stand 52 threes cooperate, and seal outlet one end of whole oil strainer, prevent that medium from directly flowing out from outlet connection without filter core 2.
The operation principle of said oil strainer is as shown in Figure 2; The direction of arrow is the flow direction of refrigeration oil; Refrigeration oil gets into from inlet union 61, and the edge through front support stand 51 gets into the slit of housing 1 and 2 of filter cores, filters the through hole of back entering filter core 2 and through outlet connection 62 outflows through filter core 2.
Said oil strainer is in assembling process; The rear end cap 32 and housing 1 affixed sealing of outlet connection 62, rear support stand 52 will be installed earlier usually; The back retainer that is set with filter core 2 42 is passed through back sealing ring 72 against rear support stand 52; Sealing ring 71, front support stand 51 and spring 8 before installing successively are at last with drive end bearing bracket 31 and housing 1 affixed sealing again.
During the port of export of Seal Oil filter, only rely on the interference fit effect of I shape sealing ring, bearing pressure when higher, back sealing ring 72 easy deformation lost efficacy, and leaked in producing, thereby made the filter effect of oil strainer bad.Simultaneously, guarantee that good sealing effectiveness often needs the rubber of oil resistant media-resistant, the sealing ring volume of I-shape construction is big, and consumption is many, and cost is high.
Therefore, how improving the filter effect of oil strainer and reduce cost, is that those skilled in the art is badly in need of the technical problem that solves at present.
The utility model content
The purpose of the utility model provides a kind of oil strainer; This oil strainer guarantees that filter element part outlet position sealing is reliable; Can effectively filter out the impurity in the refrigeration oil, prevent that the impurity in the refrigeration oil from damaging the movable part of compressor, thus guarantee refrigeration system can be effectively, safe operation.And it is with low cost.Another purpose of the utility model provides a kind of air compressor that comprises above-mentioned oil strainer.
For solving the problems of the technologies described above, the utility model provides a kind of oil strainer, comprises housing, end cap, turnover joint, filter core, retainer, bracing frame, retainer plate, sealing ring and glue layer; Filter core is the cylinder with through hole; Through hole is communicated with the import and export of said oil strainer, and the external diameter of filter core is less than the internal diameter of said housing, and the end of filter core is supported by bracing frame and retainer; Retainer and back retainer before retainer comprises, support frame as described above comprises front support stand and rear support stand; Be provided with annular retainer plate between the back retainer of oil strainer and the rear support stand, said retainer plate is the bool of fold type; The back retainer of filter core comprises end face, fits in the end of end face and filter core, and is provided with positioning boss in the middle part of the end face, and protrusion direction and peripheral flanging are different or different; There is second through hole that can supply rear support stand to pass through at the middle part of positioning boss; Retainer plate and said positioning boss are realized interference fit through suit; Back retainer, rear support stand and retainer plate three cooperate totally enclosed cannelure of formation, are provided with sealing ring in the cannelure.
In a kind of technical scheme; Retainer plate comprises the outer seal portion affixed with the back retainer, the interior sealing and the seal face that be connected inner and outer sealing portion affixed with rear support stand; Wherein, The external diameter of outer seal portion like this, just forms the step that the cross section angle is the right angle at the seal face place that is positioned between the two greater than the external diameter of interior sealing.The outer wall of outer seal portion and the inwall of positioning boss press-fit fixing.
The diameter of the outer seal portion of retainer plate adapts with the diameter of the circular orientation boss of back retainer, and the diameter of interior sealing and rear support stand diameter adapt.Positioning boss and outer seal portion form first end face as common closed ring groove, and positioning boss forms second end face of closed ring groove, and seal face forms the 3rd end face of closed ring groove.
In another kind of technical scheme, retainer plate comprise with the affixed outer seal portion of back retainer, with the affixed interior sealing of rear support stand, sealing in outer seal portion connects, like this, like this, the step that just to form a cross section angle be the right angle.The outer wall at the inwall of outer seal portion and boss position press-fits fixing.
The diameter of outer seal portion adapts with the diameter of the positioning boss of back retainer, and the through-hole diameter of interior sealing adapts with the diameter of the through hole of back retainer.Positioning boss and outer seal portion form first end face as common closed ring groove, and positioning boss forms second end face of closed ring groove, and interior sealing forms the 3rd end face of closed ring groove.
Preferably, it is square that back retainer, rear support stand and retainer plate cooperate the cross section of the seal groove that forms, and the area in cross section is less than the area in sealing ring cross section; The volume of said seal groove is less than the volume of said sealing ring.
Preferably, draw together the end face at applying filter core two ends after said; The circumference of end face has the periphery folding retainer bound edge that cooperates with said filter core cylindrical; The protrusion direction of annular boss boss can be identical with peripheral flanging or different.
Preferably, the port of export of oil filter-core of filter is provided with the rear support stand affixed with outlet connection.Rear support stand is the T font structure that there is first through hole at the middle part.T font rear support stand forms the 4th end face of closed ring groove.
Preferably, the interior sealing of retainer plate is connected on the rear support stand with the back retainer, and interior sealing, back retainer both with rear support stand formation matched in clearance.
Preferably, said cannelure is nested with O-ring seals, forms interference fit with cannelure; Tightly interlock between said O shape circle and back retainer, rear support stand, the retainer plate.
Further, the interior sealing of said retainer plate all is fixed on the outer wall of T font rear support stand through hole Zhou Duan outlet one end of three's fitted seal filter element part with the back retainer.
The utility model also provides a kind of air compressor, comprises above-mentioned oil strainer, and the oil strainer of this air compressor has good filter effect.
Description of drawings
Fig. 1 is a kind of structural representation of typical oil strainer;
Fig. 2 is the operation principle sketch map of oil strainer shown in Figure 1;
Fig. 3 is the sketch map of rear support stand, back retainer and the sealing ring fit structure of oil strainer shown in Figure 1;
The structural representation of a kind of specific embodiment of the oil strainer that Fig. 4 is provided for the utility model embodiment;
Fig. 5 is the structural representation of retainer plate in the oil strainer shown in Figure 4;
Fig. 6 is the retainer plate shown in Figure 4 and the enlarged diagram of back retainer formation cannelure;
The structural representation of the another kind of specific embodiment of the oil strainer that Fig. 7 is provided for the utility model embodiment;
Fig. 8 is the structural representation of retainer plate in the oil strainer shown in Figure 7;
Fig. 9 is the back retainer shown in Figure 7 and the enlarged diagram of fixed mount formation cannelure;
Figure 10 a is the structural representation of the scheme one of positioning boss in the oil strainer shown in Fig. 1-9;
Figure 10 b is the structural representation of the scheme two of positioning boss in the oil strainer shown in Fig. 1-9.
Symbol description among the figure:
The 1-housing;
2-filter core, 21-through hole
31-drive end bearing bracket, 32-rear end cap;
Retainer behind retainer, the 42/43-before the 41-;
Enclose flanging, 435-positioning boss in 421/431-end face, 422/432-second through hole, the peripheral flanging of 423/433-, the 424-;
51-front support stand, 52/53-rear support stand;
52a/53a-first pedestal part, 52b/53b-first through-hole section; 521/531-first through hole;
61-inlet union, 62-outlet connection;
Sealing ring/O type circle behind sealing ring/T type circle, the 73-behind the preceding sealing ring of 71-, the 72-;
72a-second pedestal part, 72b-second through-hole section, 72c-the 3rd pedestal part;
The 8-spring;
The 9-retainer plate; Sealing, 9c-seal face, 9b1-third through-hole in 9a-outer seal portion, the 9b-;
The 10-glue layer;
The 11-seal groove
The specific embodiment
In order to make those skilled in the art person understand the utility model scheme better, the utility model is done further to specify below in conjunction with the accompanying drawing and the specific embodiment.
The utility model provides a kind of oil strainer in specific embodiment, comprises housing 1, filter core 2, back retainer 43, rear support stand 53, retainer plate 9 and sealing ring 73 etc.; Filter core 2 is for having the cylinder of through hole 21, and through hole 21 is communicated with the outlet of said oil strainer, and the external diameter of filter core 2 is less than the internal diameter of said housing 1, and filter core 2 ends are supported by retainer and bracing frame.
Shown in Figure 10 a and Figure 10 b; Back retainer 43 comprises end face 431; End face 431 is fitted with the end of filter core 2, and the middle part of end face 431 has the through hole 432 that can supply rear support stand 52 to pass through, and end face 431 circumferential outer periphery are equipped with the peripheral flanging 433 of ring-type; Peripheral flanging 433 is used for filter core 2 is fixed, and makes filter core 2 just fall into back retainer 43 and obtains spacing and fixing; Back retainer 43 can be through the end of peripheral flanging 433 suit filter cores 2, and peripheral flanging 434 can make back retainer 43 be installed in the end of filter core 2 easily.In order to obtain better locating effect, the two ends of filter core 2 all scribble glue layer 10.
The port of export of oil filter-core of filter is provided with the rear support stand 53 affixed with outlet connection; Rear support stand 53 is the T font structure that there is through hole at the middle part substantially; Have directly and the first through-hole section 53b of retainer, rear support stand behind first pedestal part 53a of outlet connection butt and the butt, there is first through hole at the middle part.
Specific embodiment one:
Please refer to Fig. 4 to Fig. 6; The structural representation of a kind of specific embodiment of oil strainer that Fig. 4 is provided for the utility model embodiment; Fig. 5 is the structural representation of retainer plate in the oil strainer shown in Figure 4, and Fig. 6 is the enlarged diagram that back retainer shown in Figure 5 and fixed mount form cannelure.
Extremely shown in Figure 6 like Fig. 4; Be provided with annular retainer plate 9 between the back retainer 43 of oil strainer and the rear support stand 53; Retainer plate 9 is the tubular with step substantially, specifically comprises the outer seal portion 9a affixed with back retainer 43, the interior sealing 9b and seal face 9c three parts that are connected inner and outer sealing portion affixed with rear support stand.Wherein, the external diameter of outer seal portion 9a like this, just forms the step that the cross section angle is the right angle at the seal face 9c place that is positioned between the two greater than the external diameter of interior sealing 9b.
The diameter of the outer seal portion 9a of retainer plate 9 adapts with the inner diameter of the positioning boss 435 of back retainer 43; The inwall of positioning boss 435 is concave inward structure, but inside suit retainer plate 9; The concave inward structure of boss plays good fixing with spacing to retainer plate 9, forms first end face and second end face of closed ring groove simultaneously.
The inwall of the outer wall of outer seal portion 9a and positioning boss 435 is fixing through press-fiting; Thereby make outer seal portion 9a form first end face as the closed ring groove.
The diameter of interior sealing 9b and the diameter coadaptation mutually of second through hole 432 of retainer 43 afterwards, the outer wall matched in clearance of the inwall of interior sealing 9b and rear support stand 53 is fixed.
Seal face 9c connects outer seal portion 9a and interior sealing 9b, thereby becomes the 3rd end face of closed ring groove 11.
Back retainer 43 is sleeved on the rear support stand 53, and positioning boss 435 directly contacts with the perisporium of rear support stand 53.
The interior sealing 9b of positioning boss 435 and retainer plate 9 is connected to the first through-hole section 53b of rear support stand 53; The first through-hole section 53b forms the 4th end face of close encapsulation groove 11.
Back retainer 43, rear support stand 53 and retainer plate 9 threes cooperate and form totally-enclosed, as can to hold a sealing ring cannelure 11, and cannelure 11 is used for device sealing ring 73.The effect of sealing ring is to prevent that the mixture of cold-producing medium and refrigeration oil from flowing into the through hole of filter core after getting into filter housings inside from the gap of back retainer 43 and rear support stand 53, thereby improves filter effect.
As preferred scheme, in the present embodiment, the cross section of seal groove 11 is square, and area of section is slightly less than the cross section of said sealing ring 73; The volume of seal groove 11 is less than the volume of sealing ring 73.
Like this, back sealing ring 73 and back retainer 43 interference fit, above-mentioned two parts and rear support stand 52 matched in clearance are sealed outlet one end of whole oil strainer.Back sealing ring 73, back retainer 43 and rear support stand 53 threes cooperate, and seal outlet one end of whole oil strainer, prevent that medium from directly flowing out from outlet connection without filter core 2.
Cannelure is nested with O-ring seals 10, with the four sides formation interference fit of cannelure 11; Like this, tightly interlock between O shape circle 10 and back retainer 43, rear support stand 53, the retainer plate 9 forms sealing.
Specific embodiment two:
Please refer to Fig. 7 to Fig. 9; The structural representation of the another kind of specific embodiment of the oil strainer that Fig. 7 is provided for the utility model embodiment; Fig. 8 is the structural representation of retainer plate in the oil strainer shown in Figure 7, and Fig. 9 is the enlarged diagram that back retainer shown in Figure 8 and fixed mount form cannelure.
Extremely shown in Figure 6 like Fig. 4; Be provided with annular retainer plate 9 between the back retainer 43 of oil strainer and the rear support stand 53, retainer plate 9 is for to be the tubular with step substantially, specifically comprises outer seal portion 9a and the interior sealing 9b affixed with back retainer 43; Wherein, Sealing 9b in outer seal portion 9a connects, like this, the step that just to form a cross section angle be the right angle.
Adapting of the positioning boss 435 of the diameter of the outer seal portion 9a of retainer plate 9 and back retainer 43; The outer wall of positioning boss 435 is outer male structure, but outside suit retainer plate 9; The outer male structure of boss plays good fixing with spacing to retainer plate 9, forms first end face and second end face of closed ring groove simultaneously.The inwall of the outer wall of outer seal portion 9a and positioning boss 435 is fixing through press-fiting; Thereby make outer seal portion 9a form first end face as the closed ring groove
The outer wall of the inwall of outer seal portion 9a and positioning boss 435 press-fits fixing; Thereby make outer seal portion 9a form first end face as close encapsulation groove 11.
The internal diameter of the third through-hole 9b1 of interior sealing 9b and the diameter coadaptation mutually of second through hole 432 of retainer 43 afterwards, the outer wall matched in clearance of the inwall of interior sealing 9b and rear support stand 53 is fixed.
Back retainer 43 is sleeved on the rear support stand 53, and positioning boss 435 directly contacts with the perisporium of rear support stand 53;
The interior sealing 9b of positioning boss 435 and retainer plate 9 directly is connected to the first through-hole section 53b of rear support stand 53; The first through-hole section 53b forms the 4th end face of closed ring groove.
Back retainer 43, rear support stand 53 and retainer plate 9 threes cooperate and form totally-enclosed, as can to hold a sealing ring cannelure 11, and cannelure 11 is used for device sealing ring 73.The effect of sealing ring is to prevent that the mixture of cold-producing medium and refrigeration oil from flowing into the through hole of filter core after getting into filter housings inside from the gap of back retainer 43 and rear support stand 53, thereby improves filter effect.
In the present embodiment, the cross section of seal groove 11 is square, and area of section is slightly less than the cross section of said sealing ring 73; The volume of seal groove 11 is less than the volume of sealing ring 73.
Like this, back sealing ring 73 and back retainer 43 interference fit, above-mentioned two parts and rear support stand 53 matched in clearance are sealed outlet one end of whole oil strainer.Back sealing ring 73, back retainer 43 and rear support stand 53 threes cooperate, and seal outlet one end of whole oil strainer, prevent that medium from directly flowing out from outlet connection without filter core 2.
Cannelure 11 is nested with O-ring seals, with the four sides formation interference fit of cannelure 11; Like this, tightly interlock between back sealing ring 73 and back retainer 43, rear support stand 53, the retainer plate 9 forms sealing.
Obviously, the formation of said cannelure 11 not only is confined to the described situation of the foregoing description, and the location that can pass through rear support stand 53, back retainer 43 and retainer plate 9 forms confined space, and sealing ring is set realizes that the structure of interference fit also is fine.
Sealing structure bearing capacity is high, is not easy to cause the distortion of sealing ring and produces leakage hidden danger, and sealing effectiveness can effectively be guaranteed.Simultaneously, O RunddichtringO volume is little, in light weight, and corresponding cost is low.
Said structure is in assembling process; The rear end cap 32 and housing 1 affixed sealing of outlet connection 62, rear support stand 53 will be installed earlier usually; Back retainer that is set with filter core 2 43 and retainer plate 9 brute forces are press-fited make it firmly to be fixed together; Sealing ring is press-fited in the space of seal groove 11 into, the first through-hole section 53b with rear support stand 53 inserts second through hole 432 of back retainer 43 and the third through-hole 9b1 of retainer plate again.Sealing ring 71, front support stand 51 and spring 8 before installing successively are at last with drive end bearing bracket 31 and housing 1 affixed sealing again.
Except above-mentioned oil strainer, the utility model also provides a kind of air compressor that comprises above-mentioned oil strainer, and the structure of these other each several parts of air compressor please refer to prior art, and this paper repeats no more.
More than air compressor and oil strainer thereof that the utility model provided have been carried out detailed introduction.Used concrete example among this paper the principle and the embodiment of the utility model are set forth, the explanation of above embodiment just is used to help to understand the method and the core concept thereof of the utility model.Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.The above only is the preferred implementation of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.

Claims (10)

1. an oil strainer comprises housing (1) and filter core (2); Said filter core (2) is for having the cylinder of through hole (21); Said through hole (21) is communicated with the outlet of said oil strainer; The external diameter of said filter core (2) is less than the internal diameter of said housing (1); The end of said filter core (2) is supported by retainer and bracing frame, and said retainer comprises preceding retainer (41) and back retainer (43), and support frame as described above comprises front support stand (51) and rear support stand (53);
It is characterized in that; Be provided with the retainer plate (9) of the annular of band flanging between said back retainer (43) and the rear support stand (53); Said back retainer (43) middle part is provided with positioning boss (435); The middle part of said positioning boss (435) has second through hole (432) that can supply rear support stand (53) to pass through, and said retainer plate (9) and said positioning boss (435) are realized interference fit through suit; Said back retainer (43), rear support stand (53) and retainer plate (9) three cooperate a formation totally enclosed cannelure (11), are provided with sealing ring (73) in the said cannelure (11).
2. oil strainer as claimed in claim 1; It is characterized in that, said retainer plate (9) comprise with the outer seal portion (9a) of said back retainer (43) butt, with interior sealing (9b) and the seal face that is connected inner and outer sealing portion (9c) of said rear support stand (53) butt; The inwall butt of the outer wall of said outer seal portion (9a) and said positioning boss (435) is fixed.
3. oil strainer as claimed in claim 2; It is characterized in that; The diameter of the outer seal portion (9a) of said retainer plate (9) adapts with the diameter of the positioning boss (435) of back retainer (43), and the diameter and rear support stand (43) diameter of said interior sealing (9b) adapt.
4. oil strainer as claimed in claim 1 is characterized in that, said retainer plate (9) comprise the outer seal portion (9a) affixed with said back retainer (43), with the affixed interior sealing (9b) of said rear support stand (53); The outer wall of the inwall of said outer seal portion (9a) and positioning boss (435) press-fits fixing.
5. oil strainer as claimed in claim 4; It is characterized in that; The diameter of said outer seal portion (9a) adapts with the diameter of the circular orientation boss (435) of back retainer (43), and the diameter of the third through-hole (9b1) of said interior sealing (9b) adapts with the diameter of second through hole (432) of back retainer (43).
6. like each described oil strainer of claim 1 to 5; It is characterized in that; It is square that said back retainer (43), rear support stand (53) and retainer plate (9) cooperate the cross section of the seal groove (11) that forms, and the cross section is slightly less than the cross section of said sealing ring (73); The volume of said seal groove (11) is less than the volume of said sealing ring (73).
7. oil strainer as claimed in claim 6 is characterized in that, said back retainer (43) comprises the end face (431) at applying filter core (2) two ends; The circumference of said end face (431) has the peripheral flanging (433) that cooperates with said filter core (2) cylindrical; The protrusion direction of said annular boss (435) boss can be identical or different with peripheral flanging (433).
8. oil strainer as claimed in claim 7 is characterized in that, the interior sealing (9b) of said retainer plate (9) is fixed on the rear support stand (53) with back retainer (43), and matched in clearance; The three cooperates the outlet position of the whole filter core of sealing (2).
9. oil strainer as claimed in claim 8.It is characterized in that said sealing ring is an O type circle.
10. air compressor comprises the oil strainer of return line and said return line it is characterized in that said oil strainer is each described oil strainer of claim 1 to 9.
CN2012202738168U 2012-06-07 2012-06-07 Oil filter and air compressor Expired - Lifetime CN202605838U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012202738168U CN202605838U (en) 2012-06-07 2012-06-07 Oil filter and air compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012202738168U CN202605838U (en) 2012-06-07 2012-06-07 Oil filter and air compressor

Publications (1)

Publication Number Publication Date
CN202605838U true CN202605838U (en) 2012-12-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012202738168U Expired - Lifetime CN202605838U (en) 2012-06-07 2012-06-07 Oil filter and air compressor

Country Status (1)

Country Link
CN (1) CN202605838U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104807260A (en) * 2014-01-27 2015-07-29 浙江三花制冷集团有限公司 Dry filter
CN105268229A (en) * 2014-07-16 2016-01-27 曼·胡默尔有限公司 Filtering element having connecting pipes and two circular grooves
US9599414B2 (en) 2010-11-17 2017-03-21 Zhejiang Sanhua Automotive Components Co., Ltd Liquid reservoir

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9599414B2 (en) 2010-11-17 2017-03-21 Zhejiang Sanhua Automotive Components Co., Ltd Liquid reservoir
CN104807260A (en) * 2014-01-27 2015-07-29 浙江三花制冷集团有限公司 Dry filter
CN104807260B (en) * 2014-01-27 2017-05-03 浙江三花智能控制股份有限公司 Dry filter
CN105268229A (en) * 2014-07-16 2016-01-27 曼·胡默尔有限公司 Filtering element having connecting pipes and two circular grooves
CN105268229B (en) * 2014-07-16 2019-11-05 曼·胡默尔有限公司 Filter element with adapter tube and two body annular grooves

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