CN206125399U - Take helicopter organism automatic water discharging device of blade - Google Patents
Take helicopter organism automatic water discharging device of blade Download PDFInfo
- Publication number
- CN206125399U CN206125399U CN201621122772.3U CN201621122772U CN206125399U CN 206125399 U CN206125399 U CN 206125399U CN 201621122772 U CN201621122772 U CN 201621122772U CN 206125399 U CN206125399 U CN 206125399U
- Authority
- CN
- China
- Prior art keywords
- helicopter
- discharge outlet
- sealed
- sealed body
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Toys (AREA)
Abstract
The utility model relates to a solve at least because the drainage device structure makes unable in time, the normal exhaust problem of water in the organism in helicopter organism structural design field, especially a take helicopter organism automatic water discharging device of blade. Automatic water discharging device includes: sealed main body sets up the delivery port department at the bottom plate, first drainage hole for with sealed main body's the inner chamber and the inner chamber intercommunication of helicopter organism, the second outlet for inner chamber and outside intercommunication with sealed main body, the body sets up in the inner chamber, can support under the buoyancy of water effect and lean on to first drainage hole to seal it, when having water in addition in the helicopter organism, water is discharged from the second outlet through flow through sealed main body's inner chamber of first drainage hole, the utility model discloses the structure is ingenious, can reduce work load with the water automatic discharge in the organism, improves operational safety to, can seal automatically, prevent that the electronic equipment in the organism from being damaged, practice thrift the cost, improve stability.
Description
Technical field
This utility model is related to helicopter body field of structural design, more particularly to a kind of helicopter body with blade
Self-draining arrangement.
Background technology
Drainage arrangement is usually provided with helicopter body, is helicopter in the rainy day or when the water surface performs task by body
The necessary devices that interior water is excluded in time；The liquid such as the water in body can not be discharged in time, cause telecompass etc. in body
The normal use of various electronic equipments is affected, and even damages various electronic equipments；So, drainage arrangement is to ensure body
The essential condition that interior various electronic equipments are normally used, is also to ensure that helicopter normally performs one of important prerequisite of task.
But, at present when being designed to each system of helicopter, body drainage arrangement is often ignored；Most usual manner
Exactly a mouth is opened in eyelid covering bottom, then clogged with a common waterproof seal plug, when aircraft has performed task, by people
Work is blocked manually and draining.So irrational design so that it is more difficult to carry out draining in aircraft execution task, Er Qieyou
Strong in the subjectivity of operation, operator tends to ignore body draining and closure, the final water caused in body cannot in time,
It is normal to discharge, cause the various electronic equipments for being arranged on organism bottom to burn, affect various electronic equipments in vivo normally to use,
So as to pay very big cost, and have a strong impact on the rate of attendance and service efficiency of helicopter.
The content of the invention
The purpose of this utility model there is provided a kind of helicopter body self-draining arrangement with blade, at least to solve
Existing helicopter body drainage arrangement structure causes the problem that the water in body in time, cannot be discharged normally.
The technical solution of the utility model is：
A kind of helicopter body self-draining arrangement with blade, is arranged on the water outlet opened up on the base plate of helicopter body
At mouthful, including：
Sealed body, is sealingly disposed in the water outlet of the base plate, and inside forms inner chamber；
First discharge outlet, is opened in one end of the close described helicopter body of the sealed body, for will be described close
The inner chamber of envelope main body and the inner space of the helicopter body；
Second discharge outlet, is opened in one end of the dorsad described helicopter body of the sealed body, for will be described close
The inner chamber of envelope main body and the ft connection of the helicopter body；
Buoyancy aid, in hollow spheroidal, in being arranged on the inner chamber of the sealed body, float arrangement Cheng Dangshui is from institute
When stating the inner chamber of the second discharge outlet inflow sealed body, can be under buoyancy of water effect against to first draining
Mouthful, and it is sealed, in addition, when only having water in the helicopter body, water flows through institute by first discharge outlet
The inner chamber of sealed body is stated, is discharged from second discharge outlet.
Preferably, in the ring body of the sealed body between first discharge outlet and second discharge outlet, open
At least one steam vent is provided with, and the steam vent is located at the outside of the base plate, i.e. helicopter body outside.
Preferably, steam vent inner rotation described at least one is provided with fan blade, the rotary shaft of the fan blade
Line overlaps with the axial line of the steam vent, and the fan blade is configured in helicopter screw propeller wind drive backspin
Turn.
Preferably, the quantity of the steam vent is four, and steam vent described in two of which is internally provided with the fan leaf
Piece.
Preferably, the outlet on the base plate is circular port, and the sealed body is cylindrical, and the steam vent is located at
On one sagittal plane of the sealed body, and the outer circumference surface along the sealed body is uniformly distributed.
Preferably, open on the outer ring surface of the sealed body between first discharge outlet and second discharge outlet
External screw thread is provided with, there is annular boss on the outer ring surface of one end of close described first discharge outlet of the sealed body；
The helicopter body self-draining arrangement with blade also includes：
Expansion sleeve, is set on the outer ring surface of the sealed body from the one end with second discharge outlet, is located at
Between outlet on the sealed body and the base plate, and the internal diameter of the expansion sleeve is outer less than the annular boss
Footpath；
First nut, with the female thread matched with the external screw thread of the sealed body, from second draining
The threaded one end of mouth is equipped with the outer ring surface of the sealed body, and first nut is located at the outside of the base plate,
I.e. on the outside of helicopter body, in addition, being provided with rubber washer between first nut and the base plate.
Preferably, one end end of the close described annular boss of the expansion sleeve, offers in the axial direction gap.
Preferably, first discharge outlet is located at one end end face of dorsad described second discharge outlet of the annular boss
On, and the cross groove through the annular boss is offered in the axial direction from the end face.
Preferably, one end of the dorsad described helicopter body of the sealed body is opening, and the opening is opened up
There is female thread；
The helicopter body self-draining arrangement with blade also includes：
Second nut, is equipped with the opening by screw thread, and second discharge outlet is opened in described second
On nut.
Preferably, first discharge outlet is circular port, and second discharge outlet is rectangular opening.
The utility model has the advantage of：
Helicopter body self-draining arrangement with blade of the present utility model, when engine body exterior has water, buoyancy aid can
The first discharge outlet is sealed under buoyancy of water effect, realizes automatic sealing function；When drainage arrangement outside is without water, and
When having hydrops in helicopter body, buoyancy aid is under own wt effect away from the first discharge outlet so that hydrops are from the second discharge outlet
Discharge, realize Auto-drainage；Helicopter body self-draining arrangement clever structure with blade of the present utility model, can be by machine
Internal water is automatically drained out, and reduces workload, improves processing safety, further, it is possible to be sealed automatically, prevents in body
Electronic equipment is damaged, cost-effective, improves stability.
Description of the drawings
Fig. 1 is a kind of axonometric chart at visual angle of helicopter body self-draining arrangement of this utility model with blade；
Fig. 2 is the axonometric chart at helicopter body self-draining arrangement another visual angle of this utility model with blade；
Fig. 3 is that one kind when helicopter body self-draining arrangement of this utility model with blade is not provided with expansion sleeve is regarded
The axonometric chart at angle；
Fig. 4 is the front view of helicopter body self-draining arrangement of this utility model with blade；
Fig. 5 is A-A sectional views in Fig. 4；
Fig. 6 is the front view of sealed body in helicopter body self-draining arrangement of this utility model with blade.
Wherein, 1- sealed bodies, the discharge outlet of 11- first, the discharge outlet of 12- second, 13- steam vents, 14- fan blade, 2-
Buoyancy aid, 3- annular boss, 31- cross grooves, 4- expansion sleeves, 41- gap, the nuts of 5- first, 51- rubber washers, 6-
Two nuts, 7- base plates.
Specific embodiment
Purpose, technical scheme and advantage to implement this utility model is clearer, below in conjunction with this utility model
Accompanying drawing in embodiment, is further described in more detail to the technical scheme in this utility model embodiment.In the accompanying drawings, ad initio
Same or similar element is represented to same or similar label eventually or the element with same or like function.Described reality
It is a part of embodiment of this utility model to apply example, rather than the embodiment of whole.Below with reference to the embodiment of Description of Drawings
It is exemplary, it is intended to for explaining this utility model, and it is not intended that to restriction of the present utility model.It is new based on this practicality
Embodiment in type, the every other enforcement that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of this utility model protection.Embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " horizontal ", "front", "rear",
The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " is based on accompanying drawing institute
The orientation for showing or position relationship, are for only for ease of description this utility model and simplify description, rather than indicate or imply indication
Device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this practicality
The restriction of novel protected scope.
Below in conjunction with the accompanying drawings 1 to Fig. 6 is done into one come the helicopter body self-draining arrangement with blade to this utility model
Step is described in detail.
This utility model provides a kind of helicopter body self-draining arrangement with blade, is arranged on helicopter body
The water outlet opened up on base plate 7 (being called eyelid covering), in predefined conditions by into the water inside helicopter body from going out
The mouth of a river is discharged, and prevents the water of outside to enter inside helicopter body from outlet in predefined conditions；Wherein, predetermined condition can
Being that such as helicopter is related to overwater flight task and hovers on the water surface or in the distance flight nearer with the water surface.
Helicopter body self-draining arrangement with blade can include sealed body 1, the first discharge outlet 11, the second draining
Mouth 12 and buoyancy aid 2.
Sealed body 1 is sealingly disposed in the water outlet of base plate 7, and inside forms inner chamber, inner chamber be on the one hand for
Buoyancy aid 2 is accommodated, is on the other hand as water stream channel.
First discharge outlet 11 is opened in one end of the close helicopter body of sealed body 1 (i.e. when helicopter normal flight
When, the top end face of sealed body 1), for by the inner space of the inner chamber of sealed body 1 and helicopter body.
Second discharge outlet 12 is opened in one end of the dorsad helicopter body of sealed body 1 (i.e. when helicopter normal flight
When, the bottom end face of sealed body 1), for by the ft connection of the inner chamber of sealed body 1 and helicopter body.
Buoyancy aid 2 is arranged in the inner chamber of sealed body 1；Specifically, buoyancy aid 2 is configured to when helicopter body bottom is near water
When face and water flow into the inner chamber of sealed body 1 from the second discharge outlet 12, with gradually flowing into for water, buoyancy aid 2 can be in the floating of water
Power effect is lower final against to the first discharge outlet 11, and first discharge outlet 11 is sealed by the self structure of buoyancy aid 2；Separately
Outward, when buoyancy aid 2 is further configured to only have in helicopter body hydrops (i.e. now helicopter possibly remote from the water surface, without water energy
It is enough to flow into from the second discharge outlet 12), buoyancy aid 2 can under self gravitation effect, away from the first discharge outlet 11, but will not be to the
Two discharge outlet 12 carry out sealing blocking so that the hydrops in helicopter body can pass through sealing master by the first discharge outlet 11
The inner chamber of body 1, finally discharges from the second discharge outlet 12.
Helicopter body self-draining arrangement clever structure with blade of the present utility model, flexible operation and lightweight,
Water in body can be automatically drained out, reduce workload, improve processing safety；Further, it is possible to be sealed automatically, prevent
Electronic equipment in body is damaged, and improves the serviceability rate and stability of equipment, cost-effective.
It should be noted that in the helicopter body self-draining arrangement structure with blade of the present utility model, sealing master
The outline structure of body 1 and its inner-cavity structure etc., can be arranged as required to into various suitable shape and structures, for example can be with
Arranged according to the shape of the outlet of base plate 7 of helicopter body；In addition, the first discharge outlet 11, the second discharge outlet 12 and floating
The shape and structure of body 2 can also as needed carry out suitable setting.
In the helicopter body self-draining arrangement with blade of the present embodiment, the outlet on the base plate 7 of helicopter is
Circular port.Accordingly, sealed body 1 is cylindrical, and the first discharge outlet 11 is circular port, and the second discharge outlet 12 can be rectangle
Mouthful, buoyancy aid 2 is hollow ball；The shape size of the buoyancy aid 2 of spherical shape is moved down on being arranged on the inner chamber of sealed body 1
It is dynamic, and sealing blocking can be carried out to the first circular discharge outlet 11, but can not be to the carrying out of the second discharge outlet 12 of rectangle
Sealing blocking.
External screw thread is offered on the outer ring surface of the sealed body 1 between the first discharge outlet 11 and the second discharge outlet 12,
The annular boss 3 that has on the outer ring surface of one end of the first discharge outlet 11 of sealed body 1 (is integrated into sealed body 1
Type), and the first discharge outlet 11 is located on dorsad one end end face of the second discharge outlet 12 of annular boss 3.
Expansion sleeve 4, the first spiral shell can also be included in the helicopter body self-draining arrangement with blade of the present embodiment
The nut 6 of mother 5 and second.
Expansion sleeve 4 can be various suitable thin wall cylinders, similar to the sleeve of expansion bolt, and in expansion sleeve
Near one end end of annular boss 3, gap 41 is offered in the axial direction, in order to follow-up expansion deformation.Expansion sleeve 4 from
One end with the second discharge outlet 12 is set on the outer ring surface of sealed body 1, the water outlet on sealed body 1 and base plate 7
Between mouthful, and the internal diameter of expansion sleeve 4 is less than the external diameter of annular boss 3, i.e., follow-up to be mainly by annular boss 3 come to expansion
Sleeve 4 carries out crimp.
First nut 5 has the female thread matched with the external screw thread of sealed body 1, from the second discharge outlet 12 one
End screw thread is equipped with the outer ring surface of sealed body 1, and the first nut 5 is located at the outside of base plate 7 (while also being located at expansion sleeve
One end away from annular boss 3 of cylinder 4), when the first nut 5 is rotated, the first nut 5 can be to expansion sleeve with annular boss 3
Cylinder 4 carries out crimp, so that in the sealing of this utility model self-draining arrangement and the outlet that is fastened on base plate 7.
In addition, being provided with rubber washer 51 between the first nut 5 and base plate 7, sealing function is played.
Further, for convenience the first nut 5 and sealed body 1 are tightened, in annular boss 3 with the first discharge outlet
11 end face offers in the axial direction the cross groove 31 through annular boss 3.Also, because cross groove 31 is to pass through
Annular boss 3 is worn, so when the first nut 5 coordinates in place with sealed body 1, even if annular boss 3 is higher by the interior table of base plate 7
Face certain altitude, but the base of cross groove 31 just can be generally aligned in the same plane with the inner surface of the base plate 7 of helicopter,
Consequently facilitating the thorough discharge of the water of internal body.
Further, it is opening in one end of the dorsad helicopter body of sealed body 1, opening offers female thread；
Second nut 6 is equipped with opening by screw thread, and the second discharge outlet 12 of above-mentioned rectangle is to be opened in the second nut 6
On.Being disposed to of second nut 6 facilitates the dismounting of buoyancy aid 2 in the inner chamber of sealed body 1.Certainly, in other embodiment, second
Nut 6 can be that such as mode such as welding is connected with sealed body 1.
In the helicopter body self-draining arrangement with blade of the present embodiment, in the first discharge outlet 11 and the second discharge outlet
In the ring body of the sealed body 1 between 12, at least one steam vent 13 can also be opened up；Further, steam vent 13 is located at base plate 7
Outside (i.e. the outside of helicopter body), and on a sagittal plane of sealed body 1 (on same horizontal plane), along close
The outer circumference surface of envelope main body 1 is uniformly distributed；When steam vent 13 enables to self-draining arrangement and is particularly Auto-drainage state, plus
Fast drainage efficiency.
Further, and in the inner rotation of at least one steam vent 13 fan blade 14, the rotation of fan blade 14 are provided with
Axis overlaps with the axial line of steam vent 13；Also, the installation site and installation form of fan blade 14 are configured to
Rotate under helicopter screw propeller wind drive, so as to produce the wind-force towards the inner chamber of sealed body 1 so that in sealed body 1
Negative pressure is formed in chamber and further speeds up Auto-drainage efficiency.It should be noted that fan blade 14 can pass through various suitable
Mode is arranged in steam vent 13, especially as shown in fig. 6, for example a support can be arranged in steam vent 13, then by fan leaf
Piece 14 is arranged on the support, and concrete mode is repeated no more.
The quantity of steam vent 13 and fan blade 14 can as needed carry out suitable selection.It is excellent in the present embodiment
Gather pore 13 is four, and wherein two steam vents 13 are internally provided with fan blade 14, and are provided with the row of fan blade 14
Pore 13 is alternately distributed with the steam vent 13 for being not provided with fan blade 14.
Helicopter body self-draining arrangement installation process with blade of the present utility model is as follows：
Buoyancy aid 2 is placed in the inner chamber of sealed body 1 from the opening of sealed body 1 first, then screws in the second nut 6 and incited somebody to action
Opening is blocked；Expansion sleeve 4 is set on the outer ring surface of sealed body 1 from the one end with the second discharge outlet 12, then from
Inside helicopter body, above-mentioned overall structure is from inside to outside arranged on the water outlet of base plate 7 (being called eyelid covering), is now expanded
Sleeve 4 is located between sealed body 1 and base plate 7；Again the first nut 5 is screwed in into the bottom of sealed body 1 from outside helicopter body,
And it is provided with rubber washer 51 between the first nut 5 and base plate 7；Fix the first nut 5 and rotating annular boss 3 so that close
Envelope main body 1 is gradually screwed with the first nut 5, and now sealed body 1 is gradually moved to the outside of helicopter body, to expansion sleeve 4
Extruded, the final water outlet for causing the sealing of sealed body 1 to be fixed on base plate 7 (similar expansion bolt principle)；With close
Envelope main body 1 is gradually moved to the outside of helicopter body, and the steam vent 13 which is provided with also gradually is moved to the outside of base plate 7.
Helicopter body self-draining arrangement use state with blade of the present utility model is as follows：
When helicopter body is on such as water surface or near the water surface, and when having water to enter 1 inner chamber of sealed body from bottom,
With the increase of rate of water added, buoyancy aid 2, finally can be close by first discharge outlet 11 at the top of sealed body 1 in buoyancy float downward
Closure plug, so as to prevent water from entering inside helicopter body from the first discharge outlet 11, plays automatic-sealed effect；When helicopter machine
When body bottom does not have water and internal body is when having hydrops, because the inner chamber of sealed body 1 does not have buoyancy of water to act on, buoyancy aid 2 can
Move downward under self gravitation effect, so as to away from the first discharge outlet 11 so that the hydrops in helicopter body can pass through
First discharge outlet 11 passes through the inner chamber of sealed body 1, finally discharges from the second discharge outlet 12.
The above, specific embodiment only of the present utility model, but protection domain of the present utility model do not limit to
In this, any those familiar with the art in the technical scope that this utility model is disclosed, the change that can be readily occurred in
Change or replace, all should cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with described
Scope of the claims is defined.
Claims (9)
1. a kind of helicopter body self-draining arrangement with blade, is arranged on going out of opening up on the base plate of helicopter body (7)
At the mouth of a river, it is characterised in that include：
Sealed body (1), is sealingly disposed in the water outlet of the base plate (7), and inside forms inner chamber；
First discharge outlet (11), is opened in one end of the close described helicopter body of the sealed body (1), for will be described
The inner chamber of sealed body (1) and the inner space of the helicopter body；
Second discharge outlet (12), is opened in one end of the dorsad described helicopter body of the sealed body (1), for will be described
The inner chamber of sealed body (1) and the ft connection of the helicopter body；
Buoyancy aid (2), in hollow spheroidal, in being arranged on the inner chamber of the sealed body (1), the buoyancy aid (2) is configured to work as
When water flows into the inner chamber of the sealed body (1) from second discharge outlet (12), can be under buoyancy of water effect against extremely
First discharge outlet (11), and it is sealed, in addition, when only having water in the helicopter body, water is by described
First discharge outlet (11) flows through the inner chamber of the sealed body (1), discharges from second discharge outlet (12).
2. the helicopter body self-draining arrangement with blade according to claim 1, it is characterised in that described first
In the ring body of the sealed body (1) between discharge outlet (11) and second discharge outlet (12), at least one row is offered
Pore (13), and the steam vent (13) is positioned at the outside of the base plate (7).
3. the helicopter body self-draining arrangement with blade according to claim 2, it is characterised in that at least one institute
State steam vent (13) inner rotation and be provided with fan blade (14), the pivot center and the steam vent of the fan blade (14)
(13) axial line overlaps, and the fan blade (14) is configured to be rotated under helicopter screw propeller wind drive.
4. the helicopter body self-draining arrangement with blade according to claim 3, it is characterised in that the steam vent
(13) quantity is four, and steam vent described in two of which (13) is internally provided with the fan blade (14).
5. the helicopter body self-draining arrangement with blade according to claim 4, it is characterised in that the base plate
(7) outlet on is circular port, and the sealed body (1) is cylindrical, and the steam vent (13) is positioned at the sealed body
(1) on a sagittal plane, and the outer circumference surface along the sealed body (1) is uniformly distributed.
6. the helicopter body self-draining arrangement with blade according to claim 5, it is characterised in that described first
External screw thread is offered on the outer ring surface of the sealed body (1) between discharge outlet (11) and second discharge outlet (12),
There is annular boss (3) on the outer ring surface of one end of close described first discharge outlet (11) of the sealed body (1)；
The helicopter body self-draining arrangement with blade also includes：
Expansion sleeve (4), from the one end with second discharge outlet (12) outer ring surface of the sealed body (1) is set in
On, between the outlet on the sealed body (1) with the base plate (7), and the internal diameter of the expansion sleeve (4) is less than
The external diameter of the annular boss (3)；
First nut (5), with the female thread matched with the external screw thread of the sealed body (1), from the second row
The threaded one end at the mouth of a river (12) is equipped with the outer ring surface of the sealed body (1), and first nut (5) is positioned at described
Rubber washer (51) is provided between the outside of base plate (7), with the base plate (7).
7. the helicopter body self-draining arrangement with blade according to claim 6, it is characterised in that the first row
The mouth of a river (11) on one end end face of dorsad described second discharge outlet (12) of the annular boss (3), and from the end face
The cross groove (31) through the annular boss (3) is offered in the axial direction.
8. the helicopter body self-draining arrangement with blade according to claim 6, it is characterised in that the sealing master
One end of the dorsad described helicopter body of body (1) is opening, and the opening offers female thread；
The helicopter body self-draining arrangement with blade also includes：
Second nut (6), is equipped with the opening by screw thread, and second discharge outlet (12) is opened in described
On two nuts (6).
9. the helicopter body self-draining arrangement with blade according to any one of claim 1-8, it is characterised in that institute
It is circular port to state the first discharge outlet (11), and second discharge outlet (12) is rectangular opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621122772.3U CN206125399U (en) | 2016-10-14 | 2016-10-14 | Take helicopter organism automatic water discharging device of blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621122772.3U CN206125399U (en) | 2016-10-14 | 2016-10-14 | Take helicopter organism automatic water discharging device of blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206125399U true CN206125399U (en) | 2017-04-26 |
Family
ID=58573432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621122772.3U Active CN206125399U (en) | 2016-10-14 | 2016-10-14 | Take helicopter organism automatic water discharging device of blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206125399U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106428517A (en) * | 2016-10-14 | 2017-02-22 | 中国直升机设计研究所 | Automatic water drainage device with blades for engine body of helicopter |
-
2016
- 2016-10-14 CN CN201621122772.3U patent/CN206125399U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106428517A (en) * | 2016-10-14 | 2017-02-22 | 中国直升机设计研究所 | Automatic water drainage device with blades for engine body of helicopter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206125399U (en) | Take helicopter organism automatic water discharging device of blade | |
| CN106428517A (en) | Automatic water drainage device with blades for engine body of helicopter | |
| CN207469164U (en) | A kind of municipal works road guardrail cleaning device | |
| CN209630664U (en) | Crystallizing evaporator | |
| CN109569140B (en) | Dust device is used in building site environmental protection | |
| CN106838349A (en) | A kind of strainer valve | |
| CN207848516U (en) | A kind of oil circuit current limiter | |
| CN206269334U (en) | Exterior wall fixes stormproof louvre circle air port | |
| CN109208655B (en) | Waterproof sealing structure for fan foundation | |
| CN211430393U (en) | Agricultural water-saving irrigation subassembly | |
| CN210424985U (en) | Flow-dividing steam device | |
| CN103821116B (en) | A kind of power station tonifying Qi water-tight device | |
| CN107725818A (en) | A kind of anti-backflow filter-type ball valve | |
| CN211113881U (en) | Novel water conservancy pipeline | |
| CN208124570U (en) | Rain-proof waterproof air-exhausting duct | |
| CN206125453U (en) | Helicopter organism automatic water discharging device | |
| CN220433821U (en) | Extension type drainage structure of building construction | |
| CN207469403U (en) | Urban underground water drainage pipe net | |
| CN207017363U (en) | Jet regulator | |
| CN206415341U (en) | Husky powder seperator air duct structure | |
| CN206752515U (en) | A kind of antitheft municipal well lid | |
| CN205667746U (en) | A kind of sewage-treatment plant high efficiency filter cylinder | |
| CN216953486U (en) | Backflow prevention alarm device for waste water drainage pipe | |
| CN219740844U (en) | Floor drain structure of energy storage cabinet | |
| CN210668690U (en) | Automatic snow removing device for metal truss antenna housing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |