CN215292720U - Air filter with novel sealing structure - Google Patents
Air filter with novel sealing structure Download PDFInfo
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- CN215292720U CN215292720U CN202121530811.4U CN202121530811U CN215292720U CN 215292720 U CN215292720 U CN 215292720U CN 202121530811 U CN202121530811 U CN 202121530811U CN 215292720 U CN215292720 U CN 215292720U
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Abstract
The utility model discloses an air filter with a novel sealing structure, which comprises an air inlet, a main shell and an air outlet which are fixedly connected together in sequence along the upstream direction and the downstream direction; the upper part of the main shell is connected with a maintenance end cover through a bolt, a main filter element is arranged in the main shell, and a safety filter element is arranged in the air outlet; the downstream end part of the main filter framework is provided with a necking part, the upstream end part of the safety filter framework is provided with a flaring part, the necking part is inserted into the flaring part, and an inner sealing ring is arranged between the necking part and the flaring part in a pressing way; an outer sealing ring is arranged between the circumferential outer wall of the safety filter framework and the inner wall of the air outlet in a pressing mode. The utility model has compact structure and smaller volume, thereby being capable of adapting to the installation space of more vehicle types; the utility model discloses make main filter core and safety filter core form one inner seal through flaring portion, throat portion and inner seal circle, reduce sealed damage probability by a wide margin, effectively satisfy the sealed requirement of dirty side and clean side, prolong air cleaner's life satisfies the requirement of long maintenance mileage.
Description
Technical Field
The utility model belongs to the technical field of air cleaner technique and specifically relates to a through air cleaner.
Background
Along with the upgrading of commercial vehicle emission, the requirement for the exhaust aftertreatment of an engine is more strict, the engine is additionally provided with a complex aftertreatment module which occupies the installation space of the engine in an extruding manner, the installation space of an air filter is included, the air filter is installed in a transition from the traditional engine rear position to the engine middle position, and the factors determine that the air filter is developed towards a small-volume direction. Meanwhile, the whole vehicle has the requirement of long maintenance mileage or no maintenance on the air filter, so that the flow resistance and the dust containing performance of the air filter are better.
The existing straight-through air filter comprises a shell, one end of the shell is provided with an air inlet, the other end of the shell is provided with an air outlet, a main filter element is arranged in the shell, a safety filter element is arranged in the air outlet, the axial two ends of the main filter element are respectively provided with a main filter framework used for installing the main filter element along the circumferential direction, the circumferential surface of the safety filter element is provided with a safety filter framework, and the main filter framework and the safety filter framework are respectively connected with the inner wall of the air outlet in a sealing mode through a main filter sealing ring and a safety filter sealing ring. When the air filter is used, outside air enters from the air inlet, enters the safety filter element after being filtered by the main filter element, and finally flows out from the air outlet and is supplied to an engine for combustion.
The safety filter element can play the role of filtering air and protecting the engine when the main filter element is damaged. Because it is installed at the downstream side of the main filter element, the dirty air can enter the safety filter element after being filtered by the main filter element, so that the safety filter element can not be blocked at ordinary times. The safety filter element can prevent the engine damage caused by the fact that dirty air flows to the downstream without being filtered by the main filter element due to the fact that the main filter element is damaged or the seal is not tight during installation, and has important safety significance.
Although this kind of current air cleaner structure is safer than the air cleaner of ordinary single filter core, still has its shortcoming, promptly:
the main filter element and the safety filter element are respectively sealed with the air outlet, and the sealing surface between the main filter element and the safety filter element and the air outlet is larger; the air outlet is large in size and easy to deform, and the normal filtering performance of the air filter can be greatly influenced as long as any one part of the seal between the main filter element and the safety filter element and the air outlet is damaged due to deformation of the air outlet, so that the safety filter element is accelerated to be blocked, and the engine is damaged seriously.
Therefore, it is necessary to design a new sealing structure for a straight-through air filter, so as to reduce the probability of damage to the seal between the filter element and the air outlet and prolong the service life of the air filter.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an air cleaner with novel seal structure reduces the sealed probability of taking place the damage between filter core and the gas outlet, prolongs air cleaner's life, and compact structure has thereby less volume can adapt to the installation space of more motorcycle types simultaneously.
In order to achieve the purpose, the utility model provides an air filter with a novel sealing structure, which takes the airflow direction as the downstream direction, and comprises an air inlet, a main shell body and an air outlet which are fixedly connected together in sequence along the upstream direction and the downstream direction, wherein the air inlet is communicated with the ambient air, and the air outlet is communicated with an air inlet pipeline of an engine;
the upper part of the main shell is connected with a maintenance end cover through a bolt, the maintenance end cover and the main shell enclose a cylindrical structure, a main filter element is arranged in the main shell, and a safety filter element is arranged in the air outlet; the two axial ends of the main filter element are circumferentially provided with main filter frameworks for installing the main filter element, and the circumferential surface of the safety filter element is provided with a safety filter framework;
the downstream end part of the main filter framework is provided with a necking part, the upstream end part of the safety filter framework is provided with a flaring part, the necking part is inserted into the flaring part, and an inner sealing ring is arranged between the necking part and the flaring part in a pressing way;
an outer sealing ring is arranged between the circumferential outer wall of the safety filter framework and the inner wall of the air outlet in a pressing mode.
The air inlet is the injection molding, and the air inlet is connected and the junction is pressed and is equipped with conventional sealing washer through the screw with main casing body and maintenance end cover.
The gas outlet is the injection molding, and the gas outlet is connected and the junction is pressed and is equipped with conventional sealing washer through the screw with main casing body and maintenance end cover.
The main filter element and the safety filter element are collectively called a filter element assembly;
the main filter framework is provided with a filter element limiting block, the maintenance end cover is provided with a limiting groove matched with the filter element limiting block, and the filter element limiting block is clamped into the limiting groove and used for limiting axial movement of the filter element assembly.
The bottom upstream end of main skeleton of straining is equipped with the spacing arch of filter core, and main casing body bottom is equipped with the spacing arch of casing that the top leaned on the upper reaches direction, and spacing arch of filter core and the spacing protruding roof pressure cooperation of casing.
The utility model discloses have following advantage:
the utility model has compact structure and smaller volume, thereby being capable of adapting to the installation space of more vehicle types; the outer sealing ring is easy to damage due to deformation of the air outlet, and the main filter element and the safety filter element are respectively sealed with the air outlet through the outer sealing ring in the prior art, so that the sealing damage probability is high. The utility model discloses make main filter core and safe filter core pass through flaring portion, throat portion and inner seal circle form one inner seal, the main structural strength who strains skeleton and safe filtration skeleton itself with can oppose the adverse effect that certain gas outlet warp and bring, reduce the inner seal and receive the damage probability by a wide margin, thereby reduce the sealed probability that takes place to damage between filter core and the gas outlet on the whole, effectively satisfy the sealed requirement of dirty side and clean side, the life of extension air cleaner, satisfy the requirement of long maintenance mileage.
The filter element limiting block and the limiting groove can prevent the filter element assembly from moving axially, and the stable use state is ensured.
The spacing bellied top of casing inclines to the upper reaches direction, and the spacing arch of filter core inserts from top to bottom during easy to assemble, and the spacing arch of filter core sticiss the cooperation with the spacing bellied well lower part of casing, with the spacing bellied top clearance fit of casing (thereby conveniently insert).
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the exploded structure of the present invention;
fig. 3 is a schematic cross-sectional view of the present invention; the direction of the arrows in FIG. 3 is the direction of the airflow;
FIG. 4 is an enlarged view at A in FIG. 3;
fig. 5 is an enlarged view at B in fig. 3.
Detailed Description
As shown in fig. 1 to 5, the air cleaner with a novel sealing structure of the present invention, taking the air flow direction as the downstream direction, includes an air inlet 1, a main housing 2 and an air outlet 3, which are fixedly connected together in sequence, along the upstream direction and the downstream direction, the air inlet 1 is communicated with the ambient air, and the air outlet 3 is communicated with the air inlet pipeline of the engine;
the upper part of the main shell 2 is connected with a maintenance end cover 4 through a bolt, the maintenance end cover 4 and the main shell 2 enclose to form a cylindrical structure, a main filter element 5 is arranged in the main shell 2, and a safety filter element 6 is arranged in the air outlet 3; the two axial ends of the main filter element 5 are circumferentially provided with main filter frameworks 7 for installing the main filter element 5, and the circumferential surface of the safety filter element 6 is provided with a safety filter framework 8; the bolting is conventional and not shown.
The downstream end part of the main filter framework 7 is provided with a necking part 9, the upstream end part of the safety filter framework 8 is provided with a flaring part 10, the necking part 9 is inserted into the flaring part 10, and an inner sealing ring 11 is arranged between the necking part 9 and the flaring part 10 in a pressing way;
an outer sealing ring 12 is arranged between the circumferential outer wall of the safety filter framework 8 and the inner wall of the air outlet 3 in a pressing mode. The outer sealing ring 12 is located in the downstream direction of the inner sealing ring 11.
The utility model has compact structure and smaller volume, thereby being capable of adapting to the installation space of more vehicle types; the outer sealing ring 12 is easily damaged due to the deformation of the air outlet 3, and the main filter element 5 and the safety filter element 6 are respectively sealed with the air outlet 3 through the outer sealing ring 12 in the prior art, so that the sealing damage probability is high. The utility model discloses make main filter core 5 and safety filter core 6 through flaring portion 10, throat portion 9 and inner seal circle 11 formation one inner seal, main skeleton 7 and the safety filter skeleton 8 structural strength of itself and the adverse effect that can oppose certain gas outlet 3 and warp and bring are strained to main, reduce inner seal circle 11 bad probability by a wide margin, thereby reduce the sealed probability of taking place the damage between filter core and the gas outlet 3 on the whole, prolong air cleaner's life, satisfy the requirement of long maintenance mileage.
Air inlet 1 is independent injection molding, and air inlet 1 is connected and the junction pressure is equipped with conventional sealing washer with main casing body 2 and maintenance end cover 4 through the screw.
The gas outlet 3 is an independent injection molding piece, the gas outlet 3 is connected with the main shell 2 and the maintenance end cover 4 through screws, and a conventional sealing ring is pressed at the joint. The conventional sealing rings are not the innovative structure of the present invention, and are conventional techniques in the field, and the conventional sealing rings are not shown. Hereinafter, the outer sealing ring 12 and the inner sealing ring 11 are also conventional techniques, and the sealing structure formed by the outer sealing ring 12 and the inner sealing ring 11 is the innovative structure of the present invention.
The main filter element 5 and the safety filter element 6 are collectively called a filter element assembly; be equipped with filter core stopper 13 on the main filter skeleton 7, maintain and be equipped with on the end cover 4 with filter core stopper 13 assorted spacing groove 14, filter core stopper 13 card is gone into in the spacing groove 14 and is used for injecing filter core combination piece axial float (especially prevent filter core combination piece in the use upstream direction float). The filter element limiting block 13 and the limiting groove 14 can prevent the filter element assembly from moving axially, and the stable use state is ensured.
The filter element limiting bulge 15 is arranged at the upstream end of the bottom of the main filter framework 7 downwards, the shell limiting bulge 16 with the top end inclined towards the upstream direction is arranged at the bottom of the main shell 2, and the filter element limiting bulge 15 is in jacking fit with the shell limiting bulge 16.
The top of the shell limiting bulge 16 inclines towards the upstream direction, the filter element limiting bulge 15 is inserted from top to bottom during convenient installation, and the filter element limiting bulge 15 is in pressing fit with the middle lower part of the shell limiting bulge 16 and is in clearance fit with the top end of the shell limiting bulge 16 (so that the filter element limiting bulge is convenient to insert).
During assembly, the main shell 2 is taken as a center, the air inlet 1 and the air outlet 3 are assembled on the main shell 2, the safety filter element 6 is installed, and the main filter element 5 is installed; when the main filter element 5 is installed, the main filter element 5 is firstly placed at the bottom of the main shell 2, then the main filter element 5 is upwards pulled in the downstream direction, so that the necking part 9 at the downstream end of the main filter framework 7 and the outer sealing ring 12 on the necking part 9 are inserted into the flaring part 10 at the upstream end of the safety filter framework 8 and are tightly pressed, and then the maintenance end cover 4 is installed. When the air inlet device is used, the air inlet 1 is connected to an air inlet channel of the whole vehicle and is used for introducing ambient air; the air outlet 3 is connected with an engine supercharger and used for providing air for combustion for the engine. The downstream side of the outer sealing ring 12 is a clean side, the upstream side of the inner sealing ring 11 is a dirty side, and air is filtered by the main filter element 5 from the dirty side and then becomes clean air. The part between the outer sealing ring 12 and the inner sealing ring 11 is the safety filter element 6, after the ambient air is sucked into the air inlet 1, the ambient air enters the safety filter element 6 after being filtered through the main filter element 5, and when the main filter element 5 fails (if not assembled), the safety filter element 6 plays a role in filtering the air to prevent impurities from entering the engine. The air passes through the main filter element 5, then passes through the safety filter element 6 and finally is sent to the engine.
The above embodiments are only used for illustrating but not limiting the technical solutions of the present invention, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the present invention may be modified or substituted with equivalents without departing from the spirit and scope of the invention, which should be construed as being limited only by the claims.
Claims (5)
1. An air filter with a novel sealing structure takes an airflow direction as a downstream direction, and comprises an air inlet, a main shell and an air outlet which are fixedly connected together in sequence along the upstream direction and the downstream direction, wherein the air inlet is communicated with ambient air, and the air outlet is communicated with an air inlet pipeline of an engine;
the method is characterized in that: the upper part of the main shell is connected with a maintenance end cover through a bolt, the maintenance end cover and the main shell enclose a cylindrical structure, a main filter element is arranged in the main shell, and a safety filter element is arranged in the air outlet; the two axial ends of the main filter element are circumferentially provided with main filter frameworks for installing the main filter element, and the circumferential surface of the safety filter element is provided with a safety filter framework;
the downstream end part of the main filter framework is provided with a necking part, the upstream end part of the safety filter framework is provided with a flaring part, the necking part is inserted into the flaring part, and an inner sealing ring is arranged between the necking part and the flaring part in a pressing way;
an outer sealing ring is arranged between the circumferential outer wall of the safety filter framework and the inner wall of the air outlet in a pressing mode.
2. An air cleaner having a novel sealing structure according to claim 1, wherein: the air inlet is the injection molding, and the air inlet is connected and the junction is pressed and is equipped with conventional sealing washer through the screw with main casing body and maintenance end cover.
3. An air cleaner having a novel sealing structure according to claim 1, wherein: the gas outlet is the injection molding, and the gas outlet is connected and the junction is pressed and is equipped with conventional sealing washer through the screw with main casing body and maintenance end cover.
4. An air cleaner having a novel seal structure according to any one of claims 1 to 3, wherein: the main filter element and the safety filter element are collectively called a filter element assembly;
the main filter framework is provided with a filter element limiting block, the maintenance end cover is provided with a limiting groove matched with the filter element limiting block, and the filter element limiting block is clamped into the limiting groove and used for limiting axial movement of the filter element assembly.
5. An air cleaner having a novel sealing structure according to claim 4, wherein: the bottom upstream end of main skeleton of straining is equipped with the spacing arch of filter core, and main casing body bottom is equipped with the spacing arch of casing that the top leaned on the upper reaches direction, and spacing arch of filter core and the spacing protruding roof pressure cooperation of casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121530811.4U CN215292720U (en) | 2021-07-07 | 2021-07-07 | Air filter with novel sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121530811.4U CN215292720U (en) | 2021-07-07 | 2021-07-07 | Air filter with novel sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215292720U true CN215292720U (en) | 2021-12-24 |
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ID=79520937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121530811.4U Active CN215292720U (en) | 2021-07-07 | 2021-07-07 | Air filter with novel sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215292720U (en) |
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2021
- 2021-07-07 CN CN202121530811.4U patent/CN215292720U/en active Active
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