CN208325666U - Auto-folder airstair with safety structure - Google Patents

Auto-folder airstair with safety structure Download PDF

Info

Publication number
CN208325666U
CN208325666U CN201820249096.9U CN201820249096U CN208325666U CN 208325666 U CN208325666 U CN 208325666U CN 201820249096 U CN201820249096 U CN 201820249096U CN 208325666 U CN208325666 U CN 208325666U
Authority
CN
China
Prior art keywords
frame
folding
safety
fixing piece
airstair
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
Application number
CN201820249096.9U
Other languages
Chinese (zh)
Inventor
刘皓铭
冯北平
王铁
李艳忠
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Hengmingda Aviation Equipment Co Ltd
Original Assignee
Jiangsu Hengmingda Aviation Equipment Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiangsu Hengmingda Aviation Equipment Co Ltd filed Critical Jiangsu Hengmingda Aviation Equipment Co Ltd
Priority to CN201820249096.9U priority Critical patent/CN208325666U/en
Application granted granted Critical
Publication of CN208325666U publication Critical patent/CN208325666U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a kind of auto-folder airstair with safety structure, including fixed part and folding part.Driving assembly is provided on fixed part, driving assembly includes ball-screw and driver.Folding part includes folded frame, translational frame, connection plate, first connecting rod system and pedal.Positioning region is provided on ball-screw, positioning region is formed with retention bead, and safety structure is provided on folded frame, and safety structure includes operation portion, connector and fixing piece, fixing piece is formed with limiting groove, and operation portion control connector drives fixing piece to move in the vertical direction.It in this case, after folding part moves to designated position, can be fallen by operation portion manual control fixing piece, cooperate retention bead and limiting groove mobile to limit folding part;Or risen by operation portion manual control fixing piece, retention bead and limiting groove are separated, it is mobile convenient for folding part.In this way, greatly strengthening the stability of the auto-folder airstair with safety structure.

Description

Auto-folder airstair with safety structure
Technical field
The utility model relates to the airstair fields of helicopter more particularly to a kind of auto-folder with safety structure to step on Machine ladder.
Background technique
In the related art, Airstairs of airplane is ground airstair, cannot achieve folding, and the random difficulty that carries is larger, is increased Demand of the aircraft to the mating airstair in airport is added.Although some airstairs are able to achieve the function of folding, but folding part is mobile In place afterwards without safety device, the stability of folding part is unable to get guarantee, reduces the safety in utilization of airstair.
Utility model content
The utility model embodiment provide a kind of auto-folder airstair with safety structure, including fixed part and Folding part, the folding part are movably collected in the fixed part,
Driving assembly is provided on the fixed part, the driving component includes the ball-screw being electrically connected and driving Device,
The folding part includes folded frame, translational frame, connection plate, first connecting rod system and pedal, the connection Plate connects the translational frame, and the translational frame connects the folded frame, and the pedal is rotatably arranged on the folding On frame, the first connecting rod system connects the folded frame and the translational frame,
The driver drives the ball screw turns to drive the translational frame along the axis of the ball-screw Direction moves through the first connecting rod system and the folded frame is driven to open and shrink,
The ball-screw is provided with positioning region on one end of the folding part, and the positioning region is formed with limit convex It rises, is provided with safety structure on the folded frame, the safety structure includes operation portion, connector and fixing piece, described solid Determine part to be arranged on the connection plate, the fixing piece is formed with limiting groove, the connector connect the operation portion with The fixing piece, the operation portion control the connector and the fixing piece are driven to move in the vertical direction.
It, can be solid by operation portion manual control after folding part moves to designated position in the utility model embodiment Determine part to fall, cooperates retention bead and limiting groove mobile to limit folding part;Or it is fixed by operation portion manual control Part rises, and separates retention bead and limiting groove, mobile convenient for folding part.In this way, greatly strengthening oneself with safety structure The dynamic stability for folding airstair.
In some embodiments, the top of the retention bead is arc-shaped, and the bottom portion of groove of the limiting groove is in It is corresponding arc-shaped.
In some embodiments, the operation portion includes locating part and shaft, and the locating part is connected by the shaft The connector is connect, arc track is offered on the folded frame, multiple locating slots are offered on the arc track, it is described Locating part drives the connector to rotate around the shaft to drive the fixing piece raising and lowering.
The additional aspect and advantage of the utility model embodiment will be set forth in part in the description, partially will be under Become obvious in the description in face, or is recognized by the practice of the utility model.
Detailed description of the invention
In description of the above-mentioned and/or additional aspect and advantage of the utility model from combination following accompanying drawings to embodiment It will be apparent and be readily appreciated that, in which:
Fig. 1 is the stereochemical structure signal of the auto-folder airstair with safety structure of the utility model embodiment Figure;
Fig. 2 is that another stereochemical structure of the auto-folder airstair with safety structure of the utility model embodiment is shown It is intended to;
Fig. 3 is that the another stereochemical structure of the auto-folder airstair with safety structure of the utility model embodiment is shown It is intended to;
Fig. 4 is that the sectional perspective structure of the auto-folder airstair with safety structure of the utility model embodiment is shown It is intended to;
Fig. 5 is another sectional perspective knot of the auto-folder airstair with safety structure of the utility model embodiment Structure schematic diagram;
Fig. 6 is the three-dimensional knot of the fixing piece of the auto-folder airstair with safety structure of the utility model embodiment Structure schematic diagram;
Fig. 7 is the solid of the safety structure of the auto-folder airstair with safety structure of the utility model embodiment Structural schematic diagram;
Fig. 8 is the part of the safety structure of the auto-folder airstair with safety structure of the utility model embodiment Amplify schematic perspective view.
Specific embodiment
The embodiments of the present invention is described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein Same or similar label indicates same or similar element or element with the same or similar functions from beginning to end.Lead to below It crosses the embodiment being described with reference to the drawings to be exemplary, is only used for explaining the utility model, and should not be understood as practical to this Novel limitation.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", The orientation or positional relationship of the instructions such as " clockwise ", " counterclockwise " be based on the orientation or positional relationship shown in the drawings, be only for Convenient for description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have specifically Orientation is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " first ", " second " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicates indicated technology The quantity of feature.Define " first " as a result, the feature of " second " can explicitly or implicitly include it is one or more The feature.The meaning of " plurality " is two or more in the description of the present invention, unless otherwise clearly specific It limits.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection;It can be mechanical connection, be also possible to be electrically connected or can mutually communicate;It can be directly connected, it can also be in Between medium be indirectly connected, can be the connection inside two elements or the interaction relationship of two elements.For this field For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the description of the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it "upper" or "lower" may include that the first and second features directly contact, may include the first and second features be not directly to connect yet It touches but by the other characterisation contact between them.Moreover, fisrt feature second feature " on ", " top " and " on Face " includes fisrt feature right above second feature and oblique upper, or to be merely representative of first feature horizontal height special higher than second Sign.Fisrt feature include under the second feature " below ", " below " and " below " fisrt feature immediately below second feature and obliquely downward Side, or first feature horizontal height is merely representative of less than second feature.
Following disclosure provides many different embodiments or example is used to realize the different structure of the utility model. In order to simplify the disclosure of the utility model, hereinafter the component of specific examples and setting are described.Certainly, they are only Example, and purpose does not lie in limitation the utility model.In addition, the utility model can in different examples repeat reference numerals And/or reference letter, this repetition are for purposes of simplicity and clarity, itself not indicate discussed various embodiments And/or the relationship between setting.In addition, the example of various specific techniques and material that the utility model provides, but this Field those of ordinary skill can be appreciated that the application of other techniques and/or the use of other materials.
Please refer to Fig. 1-Fig. 8, a kind of auto-folder boarding with safety structure that the utility model embodiment provides Ladder 100, including fixed part 10 and folding part 20, folding part 20 are movably collected in fixed part 10.It is arranged on fixed part 10 There is driving assembly 12, driving assembly 12 includes the ball-screw 122 and driver 124 being electrically connected.Folding part 20 includes folding Frame 22, translational frame 24, connection plate 26, first connecting rod system 28 and pedal 21, connection plate 26 connect translational frame 24, translational frame 24 connects folded frame 22, and pedal 21 is rotatably arranged on folded frame 22, and first connecting rod system 28 connects Folded frame 22 and translational frame 24.Driver 124 drives the rotation of ball-screw 122 to drive translational frame 24 along ball-screw 122 axis direction moves through 28 Foldable frame 22 of first connecting rod system and opens and shrink.
In this way, driving assembly 12 drives ball-screw 122 to rotate, it is arranged on ball-screw and matches with ball-screw screw thread The translational frame of conjunction is moved along the axis direction of ball-screw therewith, so pull folded frame, realization pack up folded frame or Person puts down folded frame.
In some embodiments, folding part 20 further includes hush panel 23, and hush panel 23 is solid by the connection of second connecting rod 25 Determine portion 10, hush panel 23 is located at 22 lower section of folded frame.Folding part 20 is accommodated into fixed part 10 after folding, and hush panel 23 rotates And fixed part 10 is cooperated to be subjected to displacement to limit folding part 20 in fixed part 10.
In the utility model embodiment, airstair drives ball screw turns with folded portion by driver, greatly Reduce airstair the space occupied greatly, easily facilitates airstair and carry at random.Meanwhile hush panel and fixed part are connected to one It rises, and is arranged below folded frame, avoid airstair in the open state, hush panel influences airstair normal use. In addition, making hush panel far from ground, reduces abrasion and contaminated probability, ensure that the usage experience of airstair.
In some embodiments, fixed part 10 includes bottom frame 14, side frame 16 and fixed frame 18, bottom frame 14, side frame 16 Fixed part port has been cooperatively formed with fixed frame 18, the first track 162 has been provided on side frame 16, folding part 20 is in the first track It is slided on 162 and fixed part 10 is passed in and out by fixed part port, after the receiving of folding part 20 is arrived in fixed part 10, hush panel 23 is closed Fixed part port.
In this way, folding part is housed in fixed part when airstair is in unused state, hush panel closes fixed part end Mouthful, avoid folding part from being subjected to displacement in fixed part, to improve the structural stability of airstair in a folded configuration, also more Add and carries and carry convenient for airstair.
In some embodiments, side frame 16 is vertically arranged in the two sides of bottom frame 14, and bottom frame 14 is in hollow setting, ball wire The hollow part of bottom frame 14 is arranged in thick stick 122.
In this way, hollow base frame construction has not only reached the purpose of material-saving, material needed for reducing manufacture airstair, also Ball screw turns are easily facilitated, ball-screw is avoided to be in contact during rotation with bottom frame, influence ball screw turns It is smooth, or even ball-screw is caused to wear, influences the service life that ball-screw uses.
In some embodiments, side frame 16 includes first segment 164 and second segment 166, and first segment 164 is in the vertical direction Length be greater than the length of second segment 166 in the vertical direction.The second track 168 is offered on first segment 164.It is tied with insurance The auto-folder airstair 100 of structure further includes third connecting rod 27, and third connecting rod 27 connects the first track 162 and hush panel 23.It is flat Frame 24 is moved to be slidably arranged on the second track 168.
In this way, second track and pulley reduce the mobile institute of translational frame when translational frame Foldable frame is mobile The frictional force of generation improves the mobile fluency of translational frame, also improves the efficiency of folding part folding and unfolding.
In some embodiments, the second track 168 includes horizontally disposed planar portions 161, and 27 one end of third connecting rod is set It is equipped with pulley, pulley is slidably connected planar portions 161.
In some embodiments, the first track 162 includes that the horizontal component on the translational frame 24 and being located at folds Sloping portion on frame 22, folded frame 22 are provided with pulley, and pulley is slidably arranged on the first track 162.
In some embodiments, circular hole is offered on side frame 16.
In this way, hollow side-frame structure has not only reached the purpose of material-saving, material needed for reducing manufacture airstair, also It easily facilitates operator and observes structure inside airstair, find mechanical breakdown in time, improve the efficiency of airstair maintenance, And then extend the service life of airstair.
In some embodiments, first connecting rod system 28 includes the first bar and the second bar 284.First bar and the second bar 284 are arranged on folded frame 22, and the first bar and corresponding second bar 284 are hinged, and the first bar is separately connected corresponding shiftable frame Frame 24.
In the utility model embodiment, by first connecting rod system, the auto-folder airstair energy with safety structure It realizes Automatic-expanding folding part and packs up folding part, reduce the intensity of hand labor, improve the service efficiency of airstair.
In some embodiments, the first bar and corresponding translational frame 24 are hinged.
In some embodiments, the first bar and corresponding folded frame 22 are hinged.
It opens and folds in this way, articulated structure easily facilitates first connecting rod system, so that present embodiment has insurance The auto-folder airstair of structure is easily achieved.
In some embodiments, ball-screw 122 is provided with positioning region 1222 on one end of folding part 20, positioning Portion 1222 is formed with retention bead 1224.Safety structure 222 is provided on folded frame 22, safety structure 222 includes operation portion 224, connector 226 and fixing piece 228, for the setting of fixing piece 228 on connection plate 26, it is recessed that fixing piece 228 is formed with limit Slot 2282,226 attended operation portion 224 of connector and fixing piece 228, operation portion 224 control connector 226 and drive fixing piece 228 It moves in the vertical direction.
It, can be solid by operation portion manual control after folding part moves to designated position in the utility model embodiment Determine part to fall, cooperates retention bead and limiting groove mobile to limit folding part;Or it is fixed by operation portion manual control Part rises, and separates retention bead and limiting groove, mobile convenient for folding part.In this way, greatly strengthening oneself with safety structure The dynamic stability for folding airstair.
In some embodiments, the top of retention bead 1224 is arc-shaped, and the bottom portion of groove of limiting groove 2282 is in It is corresponding arc-shaped.
In this way, the arc-shaped abrasion for reducing retention bead and when limiting groove is in contact generates, extends fixing piece With the service life of positioning region, the maintenance cost of the airstair in present embodiment is reduced.
Specifically, the retention bead in present embodiment is to close to the direction of fixing piece protrusion, and limiting groove is to far from fixed The direction in position portion is recessed.Meanwhile after cooperating between limiting groove and retention bead, so that folding part and ball-screw, that is, It can not be subjected to displacement between fixed part.
In some embodiments, operation portion 224 includes locating part 2242 and shaft 2244, and locating part 2242 passes through shaft 2244 connect connectors 226, offer arc track 221 on folded frame 22, multiple locating slots are offered on arc track 221 2212, locating part 2242 is with 2244 rotations around the shaft of follower link 226 to drive 228 raising and lowering of fixing piece.
In this way, operator can operate operation portion 224, rotate around the axis, fixing piece is risen or declined, so that folding Occur opposing stationary or opposing stationary between folded portion and ball-screw, and operation portion and corresponding locating slot is fixed, with fixation Operation portion.
It in some embodiments, further include manual unlocking structure 232, manual unlocking structure 232 is arranged in hush panel 23 On.Manual unlocking structure 232 includes rack gear 2322, gear 2324, control piece 2326, handle 2328, gag lever post 2321, rack gear 2322 connection control pieces 2326 and gag lever post 2321, rack gear 2322 and gear 2324 engage, 2328 connection gear 2324 of handle. Control piece 2326 drives the movement of gag lever post 2321 by rack gear 2322 to engage with fixed part 10 and separate, and keeps hush panel 23 solid It is scheduled on fixed part 10 and is separated from fixed part 10.
In the utility model embodiment, if the auto-folder airstair with safety structure is when needing to be unfolded Power-off can be rotated with artificial operating handle, swing handle, band moving gear, and then mobile with carry-over bar, change the position of gag lever post It sets, opens folding part to realize, guarantee the auto-folder airstair normal use with safety structure.
In some embodiments, control piece 2326 is connected with movable part, and movable part connects rack gear 2322, control piece 2326 Rack gear 2322 is controlled by movable part to move.
In this way, control piece is powered, driving movable part movement, and rack movement is driven by movable part.
Specifically, in present embodiment, control piece is electromagnetic relay.
In some embodiments, Tooth rack limit device 234 is additionally provided in hush panel 23, it is fixed to be provided on rack gear 2322 Position bar 2323, when rack gear 2322 moves to extreme position to the direction far from control piece 2326, locating rod 2323 contacts rack gear limit Position device 234 is to prevent rack gear 2322 from continuing to move.
In some embodiments, it is provided with multiple limit tracks 236 being located along the same line in hush panel 23, limits Track 236 is annular in shape, and gag lever post 2321 is located in limit track 236.
In this way, gag lever post can move in limit track, to be connected with the structure of different location on fixed part, will seal Plate and fixed part are fixed up or separate hush panel and fixed part.
In the description of this specification, reference term " embodiment ", " certain embodiments ", " schematically implementation What the description of mode ", " example ", " specific example " or " some examples " etc. meant to describe in conjunction with the embodiment or example Particular features, structures, materials, or characteristics are contained at least one embodiment or example of the utility model.In this explanation In book, schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover, the specific spy of description Sign, structure, material or feature can be combined in any suitable manner in any one or more embodiments or example.
While there has been shown and described that the embodiments of the present invention, those skilled in the art can manage Solution: a variety of to the progress of these embodiments can change in the case where not departing from the principles of the present invention and objective, modify, Replacement and variant, the scope of the utility model are defined by the claims and their equivalents.

Claims (3)

1. a kind of auto-folder airstair with safety structure, which is characterized in that including fixed part and folding part, the folding Portion is movably collected in the fixed part,
Driving assembly is provided on the fixed part, the driving component includes the ball-screw and driver being electrically connected,
The folding part includes folded frame, translational frame, connection plate, first connecting rod system and pedal, the connection plate The translational frame is connected, the translational frame connects the folded frame, and the pedal is rotatably arranged on the folded frame On, the first connecting rod system connects the folded frame and the translational frame,
The driver drives the ball screw turns to drive the translational frame along the axis direction of the ball-screw Moving through the first connecting rod system drives the folded frame to open and shrink,
The ball-screw is provided with positioning region on one end of the folding part, and the positioning region is formed with retention bead, Safety structure is provided on the folded frame, the safety structure includes operation portion, connector and fixing piece, the fixing piece It is arranged on the connection plate, the fixing piece is formed with limiting groove, the connector connection operation portion and described Fixing piece, the operation portion control the connector and the fixing piece are driven to move in the vertical direction.
2. the auto-folder airstair according to claim 1 with safety structure, which is characterized in that the retention bead Top be arc-shaped, the bottom portion of groove of the limiting groove is in corresponding arc-shaped.
3. the auto-folder airstair according to claim 1 with safety structure, which is characterized in that the operation portion packet Locating part and shaft are included, the locating part connects the connector by the shaft, offers arc on the folded frame Track, offers multiple locating slots on the arc track, the locating part drive the connector around the shaft rotate with Drive the fixing piece raising and lowering.
CN201820249096.9U 2018-02-11 2018-02-11 Auto-folder airstair with safety structure Active CN208325666U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820249096.9U CN208325666U (en) 2018-02-11 2018-02-11 Auto-folder airstair with safety structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820249096.9U CN208325666U (en) 2018-02-11 2018-02-11 Auto-folder airstair with safety structure

Publications (1)

Publication Number Publication Date
CN208325666U true CN208325666U (en) 2019-01-04

Family

ID=64782339

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820249096.9U Active CN208325666U (en) 2018-02-11 2018-02-11 Auto-folder airstair with safety structure

Country Status (1)

Country Link
CN (1) CN208325666U (en)

Similar Documents

Publication Publication Date Title
CN104273973A (en) Sliding-block linkage for electric beds
CN208325666U (en) Auto-folder airstair with safety structure
CN106016943A (en) Lifting device for shelves as well as shelf component and refrigerator
CN208325600U (en) Foldable automatic airstair
CN208325599U (en) Foldable automatic airstair
US20210177135A1 (en) Foldable table bench
CN208325601U (en) Airstair with gear fitted emergent unlocking structure
CN109437045A (en) Plate six degree of freedom parks overturning prop stand to satellite service out of my cabin
CN108177795A (en) Auto-folder airstair with safety structure
CN107022854A (en) A kind of cutting knife clutch
CN107554245B (en) The decorative cover interlinked mechanism of sunshade
CN108190002A (en) Foldable automatic airstair
CN205343817U (en) 3d printer
CN108248816A (en) Airstair with gear fitted economic unlocking structure
CN209492437U (en) Caravan and its with it is concealed rise top system compartment
CN209803664U (en) Intelligent display terminal
CN101819901A (en) Driving device for two-step action type ground switch
CN110238789A (en) A kind of medical stretcher packaging technology assembling pedestal
CN201551826U (en) Automatic folding mahjong machine
CN110260119A (en) A kind of screen turnover device of with no paper conference system
CN108328522A (en) A kind of power construction insulation support device
CN209321566U (en) A kind of gift package of box cover integral type
CN109235319A (en) A kind of switching device of gate passage
CN205469559U (en) Folding mechanism of automobile body
CN209305318U (en) A kind of vehicle convertible structure

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant