CN202541292U

CN202541292U - Unidirectionally-rotating oil filling pipe cover installed with dustproof device

Info

Publication number: CN202541292U
Application number: CN201120431584XU
Authority: CN
Inventors: 姜志明; 陈列洲
Original assignee: Ningbo Shunjiang Auto Parts Manufacturing Co Ltd
Current assignee: Ningbo Shunjiang Auto Parts Manufacturing Co Ltd
Priority date: 2011-11-03
Filing date: 2011-11-03
Publication date: 2012-11-21
Anticipated expiration: 2021-11-03

Abstract

The utility model belongs to the technical field of oil filling pipe cover, and discloses a unidirectionally-rotating oil filling pipe cover installed with a dustproof device, comprising an outer cover (1), and a thread shell (2) arranged below the outer cover (1), wherein a dustproof filter screen upper support seat (3a), a dustproof filter screen lower support seat (3b) and a dustproof filter screen (3c) are installed on a press sheet (4) in the thread shell (2); and the dustproof filter screen upper support seat (3a) is connected with the dustproof filter screen lower support seat (3b), and the dustproof filter screen (3c) is arranged in the dustproof filter screen lower support seat (3b) and the dustproof filter screen upper support seat (3a). The unidirectionally-rotating oil filling pipe cover installed with a dustproof device disclosed by the utility model is simple in structure, convenient to wash and replace the dustproof device, and capable of preventing the bad sealing and discharge leakage caused by the entrance of dust and impurities in the cover.

Description

A kind of unidirectional rotation fuel filler pipe lid that dust keeper is housed

[0001] technical field

The utility model relates to the fuel filler pipe lid, relates in particular to a kind of unidirectional rotation fuel filler pipe lid that dust keeper is housed.

Background technology

At present; People for the fuel filler pipe of unidirectional rotation mechanism cover research and improve and concentrate on the aspects such as sealing effectiveness of fuel filler pipe lid to fuel filler pipe; Like application number is that 200920196486.5 Chinese utility model patent discloses a kind of fuel filler pipe lid with unidirectional rotation mechanism; Comprise enclosing cover and be arranged on the screw shell under the enclosing cover, the edge, upper end of screw shell is shaped on the connecting portion that is connected with enclosing cover, has unidirectional rotation mechanism between the contact surface of enclosing cover and screw shell.This fuel filler pipe lid not only can prevent overtightenly to cause the fuel filler pipe lid to damage guaranteeing sealing property again, and simultaneously, strength required when the relative screw shell of enclosing cover rotates can be regulated, and so just can guarantee that fuel filler pipe covers to tighten; When needs are unscrewed,, turn enclosing cover screw shell is separated with the fuel filler pipe cypress because the relative screw shell of enclosing cover can only unidirectional rotation.But design the technical personnel of this structure, only consider enclosing cover and screw shell bonded assembly sealing property, do not consider that extraneous dust impurity gets in the lid, cause poor sealing, the influence that discharging is revealed.

The utility model content

(1) the utility model technical matters that will solve

The utility model technical matters to be solved is the present situation to prior art; Provide a kind of simple and reasonable, safe and practical, prevent that dust impurity from getting in the lid; Cause poor sealing, the unidirectional rotation fuel filler pipe lid that dust keeper is housed that can guarantee sealing property is leaked in discharging.

(2) technical scheme of the utility model

The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of unidirectional rotation fuel filler pipe lid that dust keeper is housed; Comprise enclosing cover and be arranged on the screw shell under the described enclosing cover, dustproof filter screen upper bracket, dustproof filter screen undersetting and dustproof filter screen are housed on the compressing tablet in the said screw shell; Said dustproof filter screen is arranged in dustproof filter screen undersetting and the dustproof filter screen upper bracket, and dustproof filter screen upper bracket links to each other with dustproof filter screen undersetting.

In the above-mentioned unidirectional rotation fuel filler pipe lid that dust keeper is housed; Has unidirectional rotation mechanism between the contact surface of described enclosing cover and described screw shell; Said unidirectional rotation mechanism comprises unidirectional ratchet that is fixedly set in the enclosing cover downside and the non-return ratchet that is fixedly set in the connecting portion upside and matches with unidirectional ratchet; Wherein, all unidirectional ratchets all radially distribute on same circumference.

In order to obtain better technique effect, further technical measures also comprise:

The unidirectional ratchet that at least two continuous adjacent of said unidirectional rotation mechanism distribute constitutes unidirectional ratchet group, has the unidirectional ratchet group of at least two group well-distributeds on the downside of enclosing cover.

Above-mentioned non-return ratchet is at least two, and is uniformly distributed on the connecting portion of screw shell.

(3) beneficial effect of the utility model

Compared with prior art, the technical scheme of the utility model has the following advantages: simple in structure, dust keeper washes conveniently, and can prevent to cause poor sealing, the function that discharging is leaked in the dust impurity entering lid.

Description of drawings

Fig. 1 is the structural representation of the unidirectional rotation fuel filler pipe lid that dust keeper is housed of the utility model;

Fig. 2 is the upward view of enclosing cover among Fig. 1;

Fig. 3 is the upward view of screw shell among Fig. 1;

Fig. 4 is the generalized section of A-A position among Fig. 2;

Fig. 5 is the generalized section of B-B position among Fig. 3;

Fig. 6 is Fig. 4 and the scheme drawing that cooperates of Fig. 5;

Fig. 1 to Fig. 6 figure grade explanation: enclosing cover 1, unidirectional ratchet 11, ratchet group 12, screw shell 2, connecting portion 2a, non-return ratchet 21, dustproof filter screen upper bracket 3a, dustproof filter screen undersetting 3b, dustproof filter screen 3c, compressing tablet 4.

The specific embodiment

Extremely shown in Figure 6 like Fig. 1; A kind of unidirectional rotation fuel filler pipe lid that dust keeper is housed; Comprise enclosing cover 1 and be arranged on the screw shell 2 under the described enclosing cover 1, dustproof filter screen upper bracket 3a, dustproof filter screen undersetting 3b and dustproof filter screen 3c are housed on the compressing tablet 4 in the said screw shell 2; Said dustproof filter screen upper bracket 3a links to each other with said dustproof filter screen undersetting 3b, and said dustproof filter screen 3c is arranged in said dustproof filter screen undersetting 3b and the said dustproof filter screen upper bracket 3a.This device actv. can prevent to cause poor sealing in the dust impurity entering lid, the function that discharging is leaked, and also simple in structure, conveniently assemble and disassemble.

Present embodiment the contact surface of enclosing cover 1 and described screw shell 2 between have unidirectional rotation mechanism; The non-return ratchet 21 that this mechanism comprises the unidirectional ratchet 11 that is fixedly set in enclosing cover 1 downside and is fixedly set in connecting portion 2a upside and cooperates with unidirectional ratchet 11 Chinese tallow trees; Wherein, all unidirectional ratchets 11 all radially distribute on same circumference.

In order further to improve present embodiment; At least two unidirectional ratchet groups 12 of unidirectional ratchet 11 formations that continuous adjacent distributes; Have the unidirectional ratchet group 12 of at least two group well-distributeds on the downside of enclosing cover 1, non-return ratchet 21 is at least two, and is uniformly distributed on the connecting portion 2a of screw shell 2.

During use,, will push down dustproof filter screen 3c with dustproof filter screen upper bracket 3a again and link to each other with dustproof filter screen undersetting 3b as long as the filter screen 3c that will prevent dust is arranged on the said dustproof filter screen undersetting 3b.It is contained on the compressing tablet 4 in the screw shell 2, prevents that dust impurity from getting in the lid, when cleaned and changed, get final product from screw shell 2 interior taking-ups again.

Though the utility model is through being described with reference to preferred embodiment,, those skilled in the art should understand, and in the scope of claims, can do the various variation on form and the details.

Claims

1. the unidirectional rotation fuel filler pipe that dust keeper is housed covers; It is characterized in that: comprise enclosing cover (1) and be arranged on the screw shell (2) under the described enclosing cover (1), dustproof filter screen upper bracket (3a), dustproof filter screen undersetting (3b) and dustproof filter screen (3c) are housed on the compressing tablet (4) in the said screw shell (2); Said dustproof filter screen upper bracket (3a) links to each other with said dustproof filter screen undersetting (3b), and said dustproof filter screen (3c) is arranged in said dustproof filter screen undersetting (3b) and the said dustproof filter screen upper bracket (3a).

2. the unidirectional rotation fuel filler pipe lid that dust keeper is housed according to claim 1 is characterized in that: have unidirectional rotation mechanism between the contact surface of described enclosing cover (1) and described screw shell (2); Said unidirectional rotation mechanism comprises unidirectional ratchet (11) that is fixedly set in described enclosing cover (1) downside and the non-return ratchet (21) that is fixedly set in connecting portion (2a) upside and matches with described unidirectional ratchet (11); Described unidirectional ratchet (11) is a plurality of, and all unidirectional ratchets (11) radially distribute on same circumference.

3. the unidirectional rotation fuel filler pipe lid that dust keeper is housed according to claim 2; It is characterized in that: the unidirectional ratchet (11) that at least two continuous adjacent of said unidirectional rotation mechanism distribute constitutes unidirectional ratchet group (12), has the unidirectional ratchet groups of at least two group well-distributeds (12) on the downside of described enclosing cover (1).

4. play according to right and ask the 3 described unidirectional rotation fuel filler pipe lids that dust keeper is housed, it is characterized in that: described non-return ratchet (21) is at least two, and is uniformly distributed on the connecting portion (2a) of described screw shell (2).