CN209667378U - A kind of helicopter fuel oil refueling lid - Google Patents
A kind of helicopter fuel oil refueling lid Download PDFInfo
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- CN209667378U CN209667378U CN201822230056.2U CN201822230056U CN209667378U CN 209667378 U CN209667378 U CN 209667378U CN 201822230056 U CN201822230056 U CN 201822230056U CN 209667378 U CN209667378 U CN 209667378U
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- handle
- rotation axis
- locking closure
- lock
- lid
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- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The utility model discloses a kind of helicopter fuel oil refueling lids, the oil filler locked and be installed on helicopter fuselage fuel tank including lid, lid lock includes locking closure, the seal groove of locking closure and oil filler junction outer wall is provided with external O-ring seal, handle is provided at the top of locking closure, the bottom of handle is provided with rotation axis, the seal groove of rotation axis and locking closure junction outer wall is provided with internal O-ring seal, handle is provided with rivet at the center of locking closure, and handle is connected with rotation axis by rivet, the bottom of locking closure is provided with lock collar, one end outer wall that rotation axis is located at lock collar inner cavity is socketed with self-locking nut, support washer is provided between handle and the junction of locking closure.The utility model can be avoided the possibility loosened when lid lock vibration, increase sealing device, guarantee that water and dust not can enter inside fuel tank, maintains an equal level after lid locking with fuselage surface, reduces flight resistance, and provide the opening and the mode of operation of locking of a kind of simplicity.
Description
Technical field
The utility model relates to filler cap technical field, in particular to a kind of helicopter fuel oil refueling lid.
Background technique
Helicopter fuel oil refueling lid is that the opening of fuel oil is added into helicopter fuel tank, and fuel tank is usually located at body
Front position on the lower side, filler cap need to play the role of sealing to fuel tank, prevent fuel leakage, and Yi Jishui, dust etc. are miscellaneous
Matter enters inside fuel tank, influences the work of engine, influences the normal of helicopter and is in fashion, and filler cap needs locking reliable,
It avoids being opened accidentally, filler cap is an important spare part on fuel tank.
There is following deficiencies for existing filler cap: sealing performance is poor, not can effectively prevent the magazines such as water and dust
Into inside fuel tank；Achieve the purpose that locking by increasing friction force, it cannot be guaranteed that locking is reliable, there is loosening in when high vibration
Risk；Whole protrusion fuselage surface, increases air drag when flight；It is big that angle need to be can be manually rotated when opening with locking,
It is even up to 180 °, inconvenient, for this purpose, we have proposed a kind of helicopter fuel oil refueling lids.
Utility model content
The utility model provides a kind of helicopter fuel oil refueling lid, and main purpose is to can be avoided lid lock vibration
The possibility loosened when dynamic increases sealing device, guarantees that water and dust not can enter inside fuel tank, after lid locking with fuselage table
Face maintains an equal level, and reduces flight resistance, and provides the opening and the mode of operation of locking of a kind of simplicity.
To achieve the above object, the technical solution that the utility model is taken are as follows:
A kind of helicopter fuel oil refueling lid, the oil filler locked and be installed on helicopter fuselage fuel tank including lid, institute
Stating lid lock includes locking closure, and the seal groove of the locking closure and oil filler junction outer wall is provided with external O-ring seal, the lock
Handle is provided at the top of lid, the bottom of the handle is provided with rotation axis, and the rotation axis is close with locking closure junction outer wall
Sealing groove is provided with internal O-ring seal, and the handle is provided with rivet at the center of locking closure, and handle and rotation axis pass through
Rivet is connected, and the bottom of the locking closure is provided with lock collar, and the inner cavity of lock collar, the rotation axle position are protruded into the bottom of rotation axis
One end outer wall in lock collar inner cavity is socketed with self-locking nut, is provided with support washer between the handle and the junction of locking closure.
Preferably, the top of the lid lock is located at same level with the top of oil filler under handle closed state
On.
By using above-mentioned technical proposal, lid lock can be made to be located at the inside of oil filler, avoided in helicopter flight mistake
Fuselage surface is protruded in journey, reduces the air drag that helicopter is subject in flight course, saving fuel oil.
Preferably, the outer wall circumference of the lock collar is symmetrically arranged with four groups of semicolumn boss, and the inner cavity of the oil filler
Side wall is provided with the four groups of semicolumn slots to match with semicolumn boss.
By using above-mentioned technical proposal, cooperated by the semicolumn slot on the semicolumn boss and oil filler in lock collar,
Can from oil filler outlet cover lock.
Preferably, the rotation angle of the handle in the on state is 45 °.
By using above-mentioned technical proposal, rotation angle is smaller, convenient for operation.
Preferably, one end of rotation axis insertion lock collar is homalocephalus, and lock collar is offered and matched with rotation axis
Flat slot.
By using above-mentioned technical proposal, rotation axis uses flat head structure, is conducive to the fixation of rotation axis.
Preferably, the handle is provided with anti-skid chequer close to locking closure on one side.
By using above-mentioned technical proposal, in opening handle, increase the frictional force of hand and handle, convenient for operation.
Compared with prior art, the utility model has the following beneficial effects:
The four groups of semicolumn boss and the non-four groups of semicircles of oil filler inner wall on outer wall circumference that the utility model passes through lock collar
The impaction state of column groove location is sealed oil filler, and rotation axis can not rotate when handle is in locking state, securely and reliably,
Vibration is avoided to fall off；Pass through the four groups of semicolumn boss and four groups of semicolumn slots pair of oil filler inner wall on the outer wall circumference lock collar
Together, oil filler can be opened, and the rotation angle of handle is small, it is convenient to operate；By external O-ring seal counterpart cover lock and add
The junction of hydraulic fluid port is sealed, can effective water proof and dust proof；Maintain an equal level after lid locking with fuselage surface, reduces flight resistance
Power.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the utility model helicopter fuel-tank filler access lid lock status diagram；
Fig. 3 is the utility model helicopter fuel oil refueling lid opening state schematic diagram；
Fig. 4 is the utility model helicopter fuel oil refueling lid opening procedure schematic diagram；
Fig. 5 is that the utility model handle buckles status diagram.
In figure: 10- lid lock；11- locking closure；12- handle；13- rivet；14- rotation axis；O-ring seal outside 15-；16-
Support washer；O-ring seal inside 17-；18- lock collar；19- self-locking nut；20- oil filler.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "left", "right",
The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
A kind of helicopter fuel oil refueling lid as shown in Figs. 1-5, including lid lock 10 and are installed on helicopter fuselage oil
Oil filler 20 on case, lid lock 10 include locking closure 11, and the seal groove of locking closure 11 and 20 junction outer wall of oil filler is provided with outer
Portion's O-ring seal 15, the top of locking closure 11 are provided with handle 12, the top of lid lock 10 under 12 closed state of handle with oiling
The top of mouth 20 is located in same level, and lid lock 10 can be made to be located at the inside of oil filler 20, avoided in helicopter flight
Fuselage surface is protruded in the process, reduces the air drag that helicopter is subject in flight course, saving fuel oil, the bottom of handle 12
It is provided with rotation axis 14, the rotation angle of handle 12 in the on state is 45 °, and rotation angle is smaller, convenient for operating, and handle
12 are provided with anti-skid chequer close to locking closure 11 on one side, in opening handle 12, increase the frictional force of hand and handle 12, convenient for behaviour
Make, the seal groove of rotation axis 14 and 11 junction outer wall of locking closure is provided with internal O-ring seal 17, and handle 12 is close to locking closure 11
Rivet 13 is provided at center, and handle 12 is connected with rotation axis 14 by rivet 13, the bottom of locking closure 11 is provided with lock collar
18, and the inner cavity of lock collar 18 is protruded into the bottom of rotation axis 14, one end that rotation axis 14 is inserted into lock collar 18 is homalocephalus, and lock collar 18 is opened
Equipped with the flat slot of rotation axis 14 matched, rotation axis 14 use flat head structure, be conducive to the fixation of rotation axis 14, lock collar 18
Outer wall circumference be symmetrically arranged with four groups of semicolumn boss, and the intracavity sidewall of oil filler 20 is provided with and semicolumn boss phase
The four groups of semicolumn slots matched are cooperated by the semicolumn slot on semicolumn boss in lock collar 18 and oil filler 20, can be from adding
Outlet cover lock 10 in hydraulic fluid port 20, one end outer wall that rotation axis 14 is located at 18 inner cavity of lock collar are socketed with self-locking nut 19, handle 12
Support washer 16 is provided between the junction of locking closure 11.
One of the present embodiment has particular application as, and the utility model is carried out firstly the need of counterpart cover lock 10 in use
Assembling, as shown in Figure 1, lid lock 10 is by locking closure 11, handle 12, rivet 13, rotation axis 14, external O-ring seal 15, support pad
Circle 16, internal O-ring seal 17, lock collar 18 and self-locking nut 19 form.Handle 12 and rotation axis 14 are riveted by rivet 13, interior
Portion's O-ring seal 17 is fitted into the seal groove in rotation axis 14, above-mentioned part is inserted into locking closure 11, the homalocephalus in rotation axis 14 is inserted
Enter the flat slot in lock collar 18, tightens assembly using self-locking nut 19, the sealing external O-ring seal 15 being inserted on locking closure 11
In ring recess.
As shown in Figure 1, Figure 2, shown in Fig. 4 c, when filler cap is in locking states, handle is in locked position, outside oil filler 20
Surface and 18 lower end surface of lock collar distance are L1, such as Fig. 1；In four semicolumn boss and oil filler 20 on 18 outer wall circumference of lock collar
Four semicolumn slots on hole are staggered, such as Fig. 4 e；Four semicolumn raised head faces of lock collar 18 and 20 lower end surface of oil filler at this time
In impaction state.Handle 12 is buckled, 20 outer surface of oil filler and 18 lower end surface of lock collar distance are L2, four semicircles of lock collar 18
Column raised head face and 20 lower end surface of oil filler are detached from, and maximal clearance is Δ L, such as Fig. 5；Then 12 turns of handle along clockwise direction
It is 45 ° dynamic, it is directed at four semicolumn boss on 18 outer wall circumference of lock collar with four semicolumn slots on 20 inner hole of oil filler, such as
Fig. 4 a, b, d；Lid lock 10 can be lifted at this time, oil filler 20 is opened, such as Fig. 3.
If oil filler 20 need to be closed, need the four semicolumn boss and 20 inner hole of oil filler on 18 outer wall circumference of lock collar
On four semicolumn slots alignment, by lid lock 10 indentation oil fillers 20, then in the counterclockwise direction handle 12 rotate 45 °, lock
Four semicolumn boss on 18 outer wall circumference of disk are staggered with four semicolumn slots on 20 inner hole of oil filler, such as Fig. 4 e；So
Lower handle 12 is pressed afterwards, so that it is returned locked position, four semicolumn raised head faces of lock collar 18 and 20 lower end surface of oil filler are again
In impaction state, locking can be completed.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one of the utility model
In embodiment or example.In the present specification, schematic expression of the above terms be not necessarily referring to identical embodiment or
Example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more embodiment or examples
In can be combined in any suitable manner.
The preferred embodiment in the utility model disclosed above is only intended to help to illustrate the utility model.Preferred embodiment is simultaneously
There is no the details that detailed descriptionthe is all, also not limiting the utility model is only the specific embodiment.Obviously, according to this theory
The content of bright book can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to preferably
The principles of the present invention and practical application are explained, so that skilled artisan be enable to better understand and utilize this
Utility model.The utility model is limited only by the claims and their full scope and equivalents.
Claims (6)
1. a kind of helicopter fuel oil refueling lid, including lid lock (10) and the oil filler being installed on helicopter fuselage fuel tank
(20), it is characterised in that: the lid lock (10) includes locking closure (11), the locking closure (11) and oil filler (20) junction outer wall
Seal groove be provided with external O-ring seal (15), be provided with handle (12) at the top of the locking closure (11), the handle (12)
Bottom be provided with rotation axis (14), the seal groove of the rotation axis (14) and locking closure (11) junction outer wall is provided with internal O
Type sealing ring (17), the handle (12) are provided with rivet (13) at the center of locking closure (11), and handle (12) and rotation
Axis (14) is connected by rivet (13), and the bottom of the locking closure (11) is provided with lock collar (18), and the bottom of rotation axis (14)
The inner cavity of lock collar (18) is protruded into, one end outer wall that the rotation axis (14) is located at lock collar (18) inner cavity is socketed with self-locking nut
(19), support washer (16) are provided between the handle (12) and the junction of locking closure (11).
2. a kind of helicopter fuel oil refueling lid according to claim 1, it is characterised in that: the top of the lid lock (10)
Portion is located in same level under handle (12) closed state with the top of oil filler (20).
3. a kind of helicopter fuel oil refueling lid according to claim 1, it is characterised in that: the outer wall of the lock collar (18)
Circumference is symmetrically arranged with four groups of semicolumn boss, and the intracavity sidewall of the oil filler (20) is provided with and semicolumn boss phase
The four groups of semicolumn slots matched.
4. a kind of helicopter fuel oil refueling lid according to claim 1, it is characterised in that: the handle (12) is being opened
Rotation angle under state is 45 °.
5. a kind of helicopter fuel oil refueling lid according to claim 1, it is characterised in that: rotation axis (14) insertion
One end of lock collar (18) is homalocephalus, and lock collar (18) offers the flat slot matched with rotation axis (14).
6. a kind of helicopter fuel oil refueling lid according to claim 1, it is characterised in that: the handle (12) is close to lock
Lid (11) is provided with anti-skid chequer on one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822230056.2U CN209667378U (en) | 2018-12-28 | 2018-12-28 | A kind of helicopter fuel oil refueling lid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822230056.2U CN209667378U (en) | 2018-12-28 | 2018-12-28 | A kind of helicopter fuel oil refueling lid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209667378U true CN209667378U (en) | 2019-11-22 |
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ID=68563963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822230056.2U Active CN209667378U (en) | 2018-12-28 | 2018-12-28 | A kind of helicopter fuel oil refueling lid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209667378U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110979702A (en) * | 2019-12-19 | 2020-04-10 | 中国航空工业集团公司沈阳飞机设计研究所 | Gravity oil feeder for aircraft fuel system |
-
2018
- 2018-12-28 CN CN201822230056.2U patent/CN209667378U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110979702A (en) * | 2019-12-19 | 2020-04-10 | 中国航空工业集团公司沈阳飞机设计研究所 | Gravity oil feeder for aircraft fuel system |
| CN110979702B (en) * | 2019-12-19 | 2023-04-07 | 中国航空工业集团公司沈阳飞机设计研究所 | Gravity oil feeder for aircraft fuel system |
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