CN214944630U

CN214944630U - Carbon tank dust filter

Info

Publication number: CN214944630U
Application number: CN202120927627.7U
Authority: CN
Inventors: 余源
Original assignee: Chongqing Changan Automobile Co Ltd
Current assignee: Chongqing Changan Automobile Co Ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2021-11-30
Anticipated expiration: 2031-04-30

Abstract

The utility model discloses a carbon canister dust filter, which comprises a cylinder body, a filter cylinder, a clamping seat and a sealing ring; the upper end of the barrel is circumferentially provided with N clamping platforms, each clamping seat comprises a clamping seat main body and a mounting ring arranged on the lower side of the clamping seat main body, N limiting buckles are arranged on the mounting ring at intervals in the circumferential direction, and clamping gaps are formed between the N limiting buckles and the clamping seat main body; the filter cartridge is arranged in the cylinder body, the sealing ring is arranged between the clamping seat and the filter cartridge, when the clamping table moves to the clamping gap, the sealing ring is in a compressed state, and the elastic force of the sealing ring enables the filter cartridge and the clamping table to have a downward moving trend. The utility model provides a pair of carbon tank dust filter, the barrel, strain a section of thick bamboo, cassette and sealing washer adopt can dismantle the mode and connect, assemble with the easy and simple to handle of dismantling, be convenient for to strain a section of thick bamboo and examine, clean, change alone, reduce after-sale maintenance cost, reduce resource consumption.

Description

Carbon tank dust filter

Technical Field

The utility model relates to an automobile fuel evaporation system technical field, concretely relates to carbon tank dust filter.

Background

The carbon tank dust filter is used for an automobile fuel evaporation system, and in the desorption process of the fuel evaporation system, air entering the fuel evaporation system is filtered, so that dust particles in the air are prevented from entering the fuel evaporation system, and the parts of the fuel evaporation system, which are caused by the dust particles, are prevented from being broken down. The outside casing and the inside filter core of present carbon canister dust filter are all not dismantled, and the after-sale is maintained and can't wash interior straining a section of thick bamboo through dismantling outside casing, when straining a section of thick bamboo and can't play the filtering action, also can't change interior straining a section of thick bamboo, can only change whole carbon canister dust filter.

Disclosure of Invention

In view of this, the utility model aims at overcoming the defect among the prior art, provide a carbon tank dust filter, the barrel, strain a section of thick bamboo, cassette and sealing washer adopt can dismantle the mode and connect, and the assembly is simple and convenient with the operation of dismantling, is convenient for inspect, clean, change alone straining a section of thick bamboo, reduces after-sale maintenance cost, reduces resource consumption.

The utility model relates to a carbon tank dust filter, which comprises a cylinder body, a filter cylinder, a clamping seat and a sealing ring; the clamping seat comprises a clamping seat main body and a mounting ring arranged on the lower side of the clamping seat main body, N limiting buckles are arranged on the mounting ring at intervals along the circumferential direction, and clamping gaps for accommodating the clamping seats are formed between the N limiting buckles and the clamping seat main body; a first channel for the limiting buckle to pass through is arranged between every two adjacent clamping platforms, and a second channel for the clamping platforms to pass through is arranged between every two adjacent limiting buckles; the filter cartridge is arranged in the cylinder body, the sealing ring is arranged between the clamping seat and the filter cartridge, when the clamping table moves to the clamping gap, the sealing ring is in a compressed state, and the elastic force of the sealing ring enables the filter cartridge and the clamping table to have a downward moving trend.

Further, N the ka tai follows the circumference of barrel is equidistant to be set up, N stop collar follows the circumference of collar is equidistant to be set up.

Furthermore, N the ka tai all outwards protrusion in the barrel, N stop collar all inwards protrusion in the collar.

Further, it includes from last upper end cover, filter core and the lower end cover that sets gradually extremely down to strain a section of thick bamboo, the lower end cover with the inside of barrel is supported and is leaned on, the middle part of cassette is provided with along the venthole that runs through from top to bottom, the upper end cover with the middle part of filter core be provided with the outlet channel that the venthole is linked together, the filter core with be provided with the air inlet space between the barrel, be provided with a plurality of air inlets that are used for making along circumference on the collar the air inlet space is linked together with the outside.

Furthermore, the number of the air inlets is N, and the N air inlets are respectively positioned on the upper sides of the N clamping platforms.

Furthermore, a positioning elastic sheet which extends downwards into one of the clamping gaps is arranged on the clamping seat main body, and a positioning clamping groove which is sunken downwards and used for inserting the positioning elastic sheet is arranged in the middle of one of the clamping platforms.

Further, be provided with positioning slot the equal radius angle in both ends of ka tai, the equal radius angle department of locating elastic sheet inboard one side.

Furthermore, a sealing groove for installing the sealing ring is formed in the clamping seat main body, and an annular bulge is formed in the position, corresponding to the sealing ring, of the upper end cover.

Further, the lower end of the cylinder body is provided with an upward convex abutting protrusion, and the abutting protrusion abuts against the lower surface of the lower end cover.

The utility model has the advantages that: the utility model discloses a carbon tank dust filter, card platform card goes into behind the joint clearance in, the elasticity messenger of sealing washer strains a section of thick bamboo and a card platform has the trend of downstream, consequently, the lower surface of card platform and the upper surface of spacing knot tightly support under the spring action of sealing washer and lean on together, prevent barrel and cassette relative motion, realize the barrel, strain a section of thick bamboo, the detachable mode of cassette and sealing washer is connected, the easy and simple to handle of assembly and dismantlement, be convenient for inspect straining a section of thick bamboo, it is clean, change alone, reduce the after-sale maintenance cost, reduce resource consumption.

Drawings

The invention will be further described with reference to the following figures and examples:

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 1 at A;

fig. 4 is a schematic view of a partial structure of the cylinder of the present invention;

fig. 5 is a schematic view of a partial structure of the card seat of the present invention.

Description of reference numerals: 1-cylinder body, 11-clamping table, 12-positioning clamping groove, 13-abutting protrusion, 2-filter cylinder, 21-upper end cover, 211-annular protrusion, 22-filter element, 23-lower end cover, 24-air outlet channel, 3-clamping seat, 31-clamping seat main body, 311-positioning elastic sheet, 312-sealing groove, 32-mounting ring, 321-limiting buckle, 322-air inlet, 33-air outlet hole, 4-sealing ring and 5-air inlet space.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 to 5, the carbon canister dust filter in the present embodiment includes a canister body 1, a filter cartridge 2, a cartridge holder 3, and a seal ring 4; the clamping device comprises a barrel body 1, a clamping seat 3 and a clamping base, wherein N clamping seats 1 are arranged at the upper end of the barrel body 1 along the circumferential direction, N is more than or equal to 2, the clamping seat comprises a clamping seat main body 31 and a mounting ring 32 arranged at the lower side of the clamping seat main body 31, N limiting buckles 321 are arranged on the mounting ring 32 at intervals along the circumferential direction, and clamping gaps for accommodating the clamping seats 1 are arranged between the N limiting buckles 321 and the clamping seat main body 31; a first channel for the limiting buckle 321 to pass through is arranged between every two adjacent clamping platforms 1, and a second channel for the clamping platforms 1 to pass through is arranged between every two adjacent limiting buckles 321; the filter cartridge 2 is arranged in the cylinder body 1, the sealing ring 4 is arranged between the clamping seat 3 and the filter cartridge 2, when the clamping table 1 moves into the clamping gap, the sealing ring 4 is in a compressed state, and the elastic force of the sealing ring 4 enables the filter cartridge 2 and the clamping table 1 to have a downward movement tendency. N =4 in this embodiment, after the ka tai 1 is blocked in the joint clearance, the elasticity of sealing washer 4 makes ka tai 1 tightly support and connect on spacing knot 321, realizes that barrel 1, a section of thick bamboo 2, cassette 3 and sealing washer 4's detachable mode are connected, and the easy and simple operation of assembly and dismantlement is convenient for examine, clean, change alone straining a section of thick bamboo 2, reduces after-sales maintenance cost, reduces resource consumption.

In this embodiment, N of the clamping tables 1 are arranged at equal intervals along the circumferential direction of the cylinder 1, and N of the limit fasteners 321 are arranged at equal intervals along the circumferential direction of the mounting ring 32. The interval between two adjacent clamping platforms 1 is the first channel, and the interval between two adjacent limiting blocks is the second channel.

In this embodiment, N of the clamping platforms 1 all protrude outwards from the cylinder body 1, and N of the limiting buckles 321 all protrude inwards from the mounting ring 32. The upper end of barrel 1 can stretch into in the collar 32, then rotate barrel 1 until card platform 1 removes to the joint clearance in, stop buckle 321 can restrict card platform 1 and move down this moment. The bowl 1, cartridge 2, cartridge 3 and seal ring 4 are all coaxial, "inwardly" means toward the axis and "outwardly" means away from the axis.

In this embodiment, the filter cartridge 2 includes an upper end cover 21, a filter element 22, and a lower end cover 23 that are sequentially disposed from top to bottom, the lower end cover 23 abuts against the inside of the cartridge 1, an air outlet hole 33 that penetrates in the vertical direction is disposed in the middle of the clamping seat 3, an air outlet channel 24 that is communicated with the air outlet hole 33 is disposed in the middle of the upper end cover 21 and the filter element 22, an air inlet space 5 is disposed between the filter element 22 and the cartridge 1, and a plurality of air inlets 322 that are used for communicating the air inlet space 5 with the outside are circumferentially disposed on the mounting ring 32. Because the upper end cover 21 is contacted with the sealing strip, and the lower end cover 23 seals the lower end of the filter element 22, after entering the air inlet space 5 from the air inlet 322, the air can only pass through the filter element 22 to enter the air outlet channel 24, and then enters the fuel evaporation system from the air outlet hole 33, and the filtering function of the filter element 22 can prevent dust particles in the air from entering the fuel evaporation system.

In this embodiment, the number of the air inlets 322 is N, and the N air inlets 322 are respectively located on the upper sides of the N card tables 1. The air inlet 322 penetrates from inside to outside, and can provide an installation position for the positioning elastic sheet 311 while playing a role of air inlet.

In this embodiment, the card holder main body 31 is provided with a positioning elastic sheet 311 extending downward into one of the clamping gaps, and the middle portion of one of the card stands 1 is provided with a positioning card slot 12 recessed downward for inserting the positioning elastic sheet 311. On one hand, the positioning elastic sheet 311 is inserted into the positioning clamping groove 12 to prevent the relative rotation between the cylinder 1 and the clamping seat 3, and on the other hand, after the other accessories are assembled on the outer surface of the cylinder 1, the position of the cylinder 1 in the circumferential direction relative to the clamping seat 3 should be accurate, and the insertion of the positioning elastic sheet 311 into the positioning clamp can be used for determining the position of the cylinder 1 in the circumferential direction.

In this embodiment, be provided with positioning slot 12 the both ends of ka tai 1 are all rounded, the locating elastic sheet 311 is all rounded at the edges and corners of one side inwards. The fillet can have the guide effect, does benefit to positioning groove 12 and oppresses positioning elastic sheet 311 and outwards warp.

In this embodiment, the sealing groove 312 for installing the sealing ring 4 is disposed on the clamping seat main body 31, and the upper end cover 21 is disposed with an annular protrusion 211 corresponding to the sealing ring 4. After the assembly is completed, the annular protrusion 211 enables the sealing ring 4 to be in a compressed state, the sealing effect is good, and air is prevented from directly entering the air outlet 33 without being filtered by the filter element 22.

In this embodiment, the lower end of the cylinder 1 is provided with an upward protruding abutting protrusion 13, and the abutting protrusion 13 abuts against the lower surface of the lower end cover 23. The position of the abutment projection 13 preferably corresponds to the central position of the lower end cap 23.

During assembly, an operator firstly installs the sealing ring 4 into the sealing groove 312, then corresponds the position of the annular protrusion 211 to the sealing ring 4, corresponds the positions of the four clamping tables 1 on the cylinder 1 to the positions of the four second channels (at this time, the positions of the four buckles correspond to the positions of the four first channels, and it should be noted that the position of the clamping table 1 provided with the clamping grooves should correspond to the second channel close to the positioning elastic sheet 311), moves the four clamping tables 1 on the cylinder 1 upwards to pass through the second channel until the abutting protrusion 13 abuts against the lower surface of the lower end cover 23, applies upward pressure to the cylinder 1 so as to enable the annular protrusion on the upper end cover 21 to compress the sealing strip, then rotates the cylinder 1 to respectively rotate the four clamping tables 1 into the four clamping gaps, the clamping table 1 enables the positioning elastic sheet 311 to be inclined outwards deformed when the cylinder 1 is rotated until the positioning clamping groove 12 corresponds to the positioning elastic sheet 311, in the positioning elastic sheet 311 recovered the shape card and gone into positioning slot 12, the operation workman can perceive the bounce of positioning elastic sheet 311 this moment to operation workman need use great power to rotate barrel 1 after positioning elastic sheet 311 and positioning slot 12 cooperate, could make positioning elastic sheet 311 outwards incline deformation follow positioning slot 12 roll-off, consequently positioning elastic sheet 311 recovers the relative position accuracy that can remind operation workman barrel 1 and cassette 3 in the shape card goes into positioning slot 12. When an operator stops applying external force to the cylinder body 1, the elastic force of the sealing ring 4 enables the filter cartridge 2 to have a downward moving trend, and the lower end of the cylinder body 1 abuts against the protrusion 13 and the lower surface of the lower end cover 23, so that the cylinder body 1 also has a downward moving trend, and the lower surface of the clamping table 1 and the upper surface of the limiting buckle 321 tightly abut against each other under the elastic force of the sealing ring 4, so that the cylinder body 1 and the clamping seat 3 are prevented from moving relatively.

During the dismantlement, the operation workman uses great power to rotate barrel 1, makes location shell fragment 311 lean out deformation follow positioning groove 12 in the roll-off, then continues to rotate to four ka tai 1 and four second channel position correspondences, moves barrel 1 downwards, and four ka tai 1 pass each second passageway, and four spacing buckles 321 pass each first passageway to make barrel 1 and cassette 3 separate, accomplish the dismantlement.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. A canister dust filter characterized by: comprises a cylinder body (1), a filter cylinder (2), a clamping seat (3) and a sealing ring (4); the clamping device comprises a barrel body (1), wherein N clamping platforms (11) are arranged at the upper end of the barrel body (1) along the circumferential direction, N is more than or equal to 2, the clamping seat (3) comprises a clamping seat main body (31) and a mounting ring (32) arranged on the lower side of the clamping seat main body (31), N limiting buckles (321) are arranged on the mounting ring (32) at intervals along the circumferential direction, and clamping gaps for accommodating the clamping platforms (11) are arranged between the N limiting buckles (321) and the clamping seat main body (31); a first channel for the limiting buckle (321) to pass through is arranged between every two adjacent clamping platforms (11), and a second channel for the clamping platforms (11) to pass through is arranged between every two adjacent limiting buckles (321); the filter cartridge (2) is arranged in the cartridge body (1), the sealing ring (4) is arranged between the clamping seat (3) and the filter cartridge (2), when the clamping table (11) moves into the clamping gap, the sealing ring (4) is in a compressed state, and the elastic force of the sealing ring (4) enables the filter cartridge (2) and the clamping table (11) to have a downward movement tendency.

2. The canister dust filter of claim 1, wherein: n ka tai (11) are followed the circumference of barrel (1) is equidistant to be set up, N stop buckle (321) are followed the circumference of collar (32) is equidistant to be set up.

3. The canister dust filter of claim 1, wherein: n the ka tai (11) all outwards protrusion in barrel (1), N stop buckle (321) all inwards protrusion in collar (32).

4. The canister dust filter of claim 1, wherein: the filter cartridge (2) comprises an upper end cover (21), a filter element (22) and a lower end cover (23) which are sequentially arranged from top to bottom, the lower end cover (23) is abutted against the inside of the cylinder body (1), an air outlet hole (33) which penetrates through the middle of the clamping seat (3) along the upper-lower direction is formed in the middle of the clamping seat, an air outlet channel (24) which is communicated with the air outlet hole (33) is formed in the middle of the upper end cover (21) and the filter element (22), an air inlet space (5) is formed between the filter element (22) and the cylinder body (1), and a plurality of air inlets (322) which are used for enabling the air inlet space (5) to be communicated with the outside are formed in the mounting ring (32) along the circumferential direction.

5. The canister dust filter of claim 4, wherein: the quantity of air inlet (322) is N, and N air inlet (322) are all located N respectively the upside of ka tai (11).

6. The canister dust filter of claim 5, wherein: the clamping seat main body (31) is provided with a positioning elastic sheet (311) which extends downwards into one of the clamping gaps, and the middle part of one of the clamping seats (11) is provided with a positioning clamping groove (12) which is sunken downwards and is used for inserting the positioning elastic sheet (311).

7. The canister dust filter of claim 6, wherein: the two ends of the clamping table (11) provided with the positioning clamping grooves (12) are rounded, and the edges and corners of the inward side of the positioning elastic sheet (311) are rounded.

8. The canister dust filter of claim 4, wherein: the clamping seat main body (31) is provided with a sealing groove (312) for mounting the sealing ring (4), and the upper end cover (21) is provided with an annular bulge (211) corresponding to the sealing ring (4).

9. The canister dust filter of claim 8, wherein: the lower end of the cylinder body (1) is provided with an upward convex abutting bulge (13), and the abutting bulge (13) abuts against the lower surface of the lower end cover (23).