CN111042463A - Plank loft is with folding stair - Google Patents
Plank loft is with folding stair Download PDFInfo
- Publication number
- CN111042463A CN111042463A CN201911416221.6A CN201911416221A CN111042463A CN 111042463 A CN111042463 A CN 111042463A CN 201911416221 A CN201911416221 A CN 201911416221A CN 111042463 A CN111042463 A CN 111042463A
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- China
- Prior art keywords
- fixed
- movable mounting
- ladder
- rod
- stair
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F11/04—Movable stairways, e.g. of loft ladders which may or may not be concealable or extensible
- E04F11/06—Movable stairways, e.g. of loft ladders which may or may not be concealable or extensible collapsible, e.g. folding, telescopic
- E04F11/062—Movable stairways, e.g. of loft ladders which may or may not be concealable or extensible collapsible, e.g. folding, telescopic folding
- E04F11/064—Movable stairways, e.g. of loft ladders which may or may not be concealable or extensible collapsible, e.g. folding, telescopic folding with stringers overlapping when folded
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F11/04—Movable stairways, e.g. of loft ladders which may or may not be concealable or extensible
- E04F11/06—Movable stairways, e.g. of loft ladders which may or may not be concealable or extensible collapsible, e.g. folding, telescopic
Abstract
The invention discloses a folding stair for a wood board attic, which comprises a frame, wherein a plywood is movably arranged on one side of the outer surface of the lower end of the frame, a hinge is movably arranged between the frame and the plywood, first fixed blocks are fixedly arranged at the middle positions of the inner surfaces of the front end and the rear end of the frame, a first connecting shaft is movably arranged at one end, far away from the frame, of each first fixed block, second fixed blocks are fixedly arranged at the middle positions of the front end and the rear end of the outer surface of the upper end of the plywood, a second connecting shaft is movably arranged at the upper end of each second fixed block, a first movable shaft is movably arranged between each second connecting shaft and the first connecting shaft, and a fixed ladder is fixedly arranged on the. This plank loft is with folding stair, stability is strong, and the skew can not take place for the stair when going up and down the stair, and the adjustable convenience old person of distance between the stair tread goes up and down the stair, and the stair both sides are provided with the guardrail, the security when having improved going up and down the stair.
Description
Technical Field
The invention relates to the field of stairs, in particular to a folding stair for a wood board attic.
Background
The loft refers to the space of house abattoir lower part, is a building structure, it is many to be present in the attic, generally be used for the storeroom to use, go up and down the loft and need pass through the stair as the medium, because the stair is installed indoor very occupation area, consequently folding stair are all installed basically to present loft, can fold the stair and accomodate when not using the loft, but current plank loft is with folding stair simple structure, and stair stability is relatively poor, the stair produces the skew easily when going up and down the stair, the stair do not have the rail guard on the stair, there is danger when going up and down the stair, the footboard interval of stair can not be adjusted, it is very difficult when the old person goes up and.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the folding stair for the wood board loft, which is strong in stability, the stair cannot deviate when going up and down the stair, the distance between stair treads can be adjusted, so that the old can conveniently go up and down the stair, and guardrails are arranged on two sides of the stair, so that the safety when going up and down the stair is improved.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a folding stair for a plank attic comprises a frame, wherein a plywood is movably mounted on one side of the outer surface of the lower end of the frame, a hinge is movably mounted between the frame and the plywood, first fixing blocks are fixedly mounted at the middle positions of the inner surfaces of the front and rear ends of the frame, a first connecting shaft is movably mounted at one end, far away from the frame, of the first fixing block, second fixing blocks are fixedly mounted at the middle positions of the front and rear ends of the outer surface of the upper end of the plywood, a second connecting shaft is movably mounted at the upper end of the second fixing block, a first movable shaft is movably mounted between the second connecting shaft and the first connecting shaft, a fixed ladder is fixedly mounted on the outer surface of the upper end of the plywood, a pedal is movably mounted between the inner surfaces of the front and rear ends of the fixed ladder, a folding ladder is movably mounted on one side, far away, equal movable mounting has a set screw between hinge and fixed ladder and the folding ladder, the equal movable mounting in upper end surface edge of frame has the stationary blade, and movable mounting has first bolt between stationary blade and the frame, first fixed screw has all been seted up to the upper end surface both sides of stationary blade, one side fixed mounting that the hinge was kept away from to the lower extreme surface of plywood has the handle.
Preferably, the draw-in groove has all been seted up at both ends around the lower extreme surface of plywood, and one side movable mounting that the inside of draw-in groove is close to the hinge has first pivot, and the lower extreme fixed mounting of first pivot has the ejector pin, the lower extreme movable mounting of ejector pin has the telescopic link, and the lower extreme surface parcel of telescopic link has the rubber pad, the one end surface that the plywood was kept away from to the ejector pin has the binding near the position movable mounting of lower extreme.
Preferably, the ejector rod is movably mounted inside the clamping groove, the telescopic rod penetrates through the ejector rod, the fastener penetrates through the ejector rod, and the fastener is movably connected with the telescopic rod.
Preferably, the equal movable mounting in both ends surface both sides has first movable rod around fixed ladder and the folding ladder, and the upper end movable mounting of first movable rod has the second movable rod, movable mounting has the second loose axle between first movable rod and the second movable rod, the upper end movable mounting of second movable rod has the handrail, between first movable rod and the fixed ladder and equal movable mounting has the second bolt between second movable rod and the handrail.
Preferably, the fixed ladder and the folding ladder have both been seted up the spout with the front and back both ends internal surface, and the inside movable mounting of spout has the slider, fixed connection between slider and the footboard, the fixed screw of second has all been seted up to fixed ladder and folding ladder's front and back both ends surface.
Preferably, the inside of the second fixing screw hole is penetrated by a fixing bolt, and the fixing bolt is movably connected with the sliding block.
Preferably, the folding ladder is far away from the equal fixed mounting in both ends around one side of fixed ladder and has the connecting rod, and one side movable mounting that the folding ladder was kept away from to the connecting rod has the shaft, movable mounting has the second pivot between shaft and the connecting rod, one side movable mounting that the folding ladder was kept away from to the surface of shaft has the gyro wheel, and one side movable mounting that the folding ladder was kept away from to the gyro wheel has the sucking disc.
Preferably, the number of the fixing pieces is four, and the fixing pieces are installed in a cross-shaped symmetrical mode.
(III) advantageous effects
The invention provides a folding stair for a wood board loft, which has the following beneficial effects:
(1) the folding stair for the plank attic is characterized in that clamping grooves are formed in the front end and the rear end of the outer surface of the lower end of a plywood, a first rotating shaft is movably mounted on one side, close to a hinge, of the inner portion of each clamping groove, an ejector rod is fixedly mounted at the lower end of the first rotating shaft, a telescopic rod is movably mounted at the lower end of the ejector rod, a rubber pad wraps the outer surface of the lower end of the telescopic rod, a fastener is movably mounted at a position, close to the lower end, of the outer surface of one end, far away from the plywood, of the ejector rod, the ejector rod is rotated by the first rotating shaft to be taken out of the clamping grooves when the folding stair is put down, the length between the ejector rod and the telescopic rod is adjusted through the telescopic rod in a moving mode, the ejector rod and the telescopic rod are fixed through the fastener, then rotate the ejector pin through first pivot and can accomodate the ejector pin in the draw-in groove.
(2) This plank is folding stair for loft, the equal movable mounting in both sides of both ends surface has first movable rod around fixed ladder and the folding ladder, the upper end movable mounting of first movable rod has the second movable rod, movable mounting has the second loose axle between first movable rod and the second movable rod, the upper end movable mounting of second movable rod has the handrail, equal movable mounting has the second bolt between first movable rod and the fixed ladder and between second movable rod and the handrail, fixed ladder is parallel with the folding ladder when stair are put down, upwards stimulate the handrail, first movable rod and second movable rod utilize the second bolt to rotate with the second loose axle this moment, first movable rod and second movable rod prop up the handrail and form the guardrail, the security when having improved the stairs.
(3) This plank folding stair for loft, the spout has all been seted up with folding ladder's front and back both ends internal surface to the fixed ladder, and the inside movable mounting of spout has the slider, fixed connection between slider and the footboard, and the fixed screw of second has all been seted up to fixed ladder and folding ladder's front and back both ends surface, and the footboard passes through the slider and can move in the spout, then through increasing or reducing the distance between the adjustable footboard of the quantity of footboard, the old person of being convenient for stairs up and down.
(4) This plank folding stair for loft, the equal fixed mounting in both ends has the connecting rod around one side that the folding ladder was kept away from to the folding ladder, one side movable mounting that the folding ladder was kept away from to the connecting rod has the shaft, movable mounting has the second pivot between shaft and the connecting rod, one side movable mounting that the folding ladder was kept away from to the surface of shaft has the gyro wheel, one side movable mounting that the folding ladder was kept away from to the gyro wheel has the sucking disc, utilize the second pivot to rotate shaft and connecting rod into the vertical state when the folding ladder puts down, gyro wheel and ground contact this moment, promote the inclination of the adjustable stair of folding ladder, rethread second pivot rotates shaft and connecting rod into the parallel state after adjusting the angle, sucking disc and ground contact this moment, utilize the sucking disc to catch ground, stair take place the.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a view showing the combination of the frame and the fixing sheet of the present invention;
FIG. 3 is a view of the combination of the plywood and the post rod of the present invention;
FIG. 4 is a view of the present invention showing the combination of the fixed ladder and the step;
FIG. 5 is a view of the folding ladder of the present invention in combination with rollers;
FIG. 6 is a view of the present invention showing the combination of the fixed ladder and the armrest;
in the figure: 1. a frame; 2. plywood; 21. a card slot; 22. a top rod; 23. a first rotating shaft; 24. a telescopic rod; 25. a rubber pad; 26. a fastener; 3. a hinge; 4. a first fixed block; 5. a first connecting shaft; 6. a second fixed block; 7. a second connecting shaft; 8. a first movable shaft; 9. fixing the ladder; 91. a first movable bar; 92. a second movable bar; 93. a second movable shaft; 94. a handrail; 95. a second bolt; 10. a pedal; 101. a chute; 102. a slider; 103. a second fixing screw hole; 11. a folding ladder; 111. a connecting rod; 112. a wheel axle; 113. a second rotating shaft; 114. a roller; 115. a suction cup; 12. a hinge; 13. fixing screws; 14. a fixing sheet; 15. a first bolt; 16. a first fixing screw hole; 17. a handle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: a folding stair for a plank attic comprises a frame 1, wherein fixing pieces 14 are movably installed at the corners of the outer surface of the upper end of the frame 1, first bolts 15 are movably installed between the fixing pieces 14 and the frame 1, first fixing screw holes 16 are respectively formed in the two sides of the outer surface of the upper end of each fixing piece 14, the frame 1 is clamped at an inlet and an outlet of the attic, then the fixing pieces 14 are rotated through the first bolts 15 to clamp the corners of the inlet and the outlet of the attic, expansion screws are screwed into the first fixing screw holes 16 to fix the frame 1 at the inlet and the outlet of the attic, a plywood 2 is movably installed on one side of the outer surface of the lower end of the frame 1, a handle 17 is fixedly installed on one side of the outer surface of the lower end of the plywood 2, which is far away from a hinge 3, a hinge 3 is movably installed between the frame 1 and the plywood 2, first fixing blocks 4 are fixedly installed on the middle positions of, the middle positions of the front end and the rear end of the outer surface of the upper end of the plywood 2 are fixedly provided with a second fixed block 6, the upper end of the second fixed block 6 is movably provided with a second connecting shaft 7, a first movable shaft 8 is movably arranged between the second connecting shaft 7 and the first connecting shaft 5, the outer surface of the upper end of the plywood 2 is fixedly provided with a fixed ladder 9, a pedal 10 is movably arranged between the inner surfaces of the front end and the rear end of the fixed ladder 9, one side of the fixed ladder 9, which is far away from the hinge 3, is movably provided with a folding ladder 11, a hinge 12 is movably arranged between the fixed ladder 9 and the folding ladder 11, fixed screws 13 are movably arranged between the hinge 12 and the fixed ladder 9 and between the folding ladder 11, a handle 17 is pulled to open the plywood 2 through the hinge 3, then the first connecting shaft 5 and the second connecting shaft 7 utilize the first movable shaft 8 to adjust the opening angle of the plywood 2, then go up and down stairs through the pedals 10, the front end and the rear end of the outer surface of the lower end of the plywood 2 are respectively provided with a clamping groove 21, one side of the inner part of the clamping groove 21 close to the hinge 3 is movably provided with a first rotating shaft 23, the lower end of the first rotating shaft 23 is fixedly provided with a top rod 22, the lower end of the top rod 22 is movably provided with a telescopic rod 24, the outer surface of the lower end of the telescopic rod 24 is wrapped with a rubber pad 25, the outer surface of one end of the top rod 22 far away from the plywood 2 is movably provided with a fastener 26 close to the lower end, the top rod 22 is rotated by the first rotating shaft 23 when the folding stairs are put down and is taken out from the clamping groove 21, then the length between the top rod 22 and the telescopic rod 24 is adjusted through the telescopic rod 24 in a moving way, the top rod 22 and the telescopic rod 24 are fixed, when the stair is retracted, the telescopic rod 24 is retracted into the ejector rod 22 and fixed by the fastener 26, then the ejector rod 22 can be accommodated in the clamping groove 21 by rotating the ejector rod 22 through the first rotating shaft 23, the ejector rod 22 is movably arranged in the clamping groove 21, the telescopic rod 24 penetrates through the ejector rod 22, the fastener 26 is movably connected with the telescopic rod 24, the length between the ejector rod 22 and the telescopic rod 24 is adjusted by moving the telescopic rod 24 in the ejector rod 22, the ejector rod 22 and the telescopic rod 24 are fixed by the fastener 26, the ejector rod 22 can be accommodated by utilizing the clamping groove 21, the first movable rods 91 are movably arranged on both sides of the outer surfaces of the front end and the rear end of the fixed ladder 9 and the folding ladder 11, the second movable rods 92 are movably arranged on the upper ends of the first movable rods 91, and the second movable shafts 93 are movably arranged between the first movable rods 91 and the second movable, a handrail 94 is movably arranged at the upper end of the second movable rod 92, second bolts 95 are movably arranged between the first movable rod 91 and the fixed ladder 9 and between the second movable rod 92 and the handrail 94, the fixed ladder 9 is parallel to the folding ladder 11 when the stairs are put down, the handrail 94 is pulled upwards, at the moment, the first movable rod 91 and the second movable rod 92 rotate by utilizing the second bolts 95 and the second movable shaft 93, the handrail 94 is supported by the first movable rod 91 and the second movable rod 92 to form a guardrail, the safety when the stairs go up and down is improved, sliding grooves 101 are respectively formed in the front and rear inner surfaces of the fixed ladder 9 and the folding ladder 11, sliding blocks 102 are movably arranged in the sliding grooves 101, the sliding blocks 102 are fixedly connected with the pedals 10, second fixed screw holes 103 are respectively formed in the front and rear outer surfaces of the fixed ladder 9 and the folding ladder 11, the pedals 10 can move in the sliding grooves 101 through the sliding blocks 102, and then the distance between the pedals 10 can be adjusted by increasing or reducing the number of the, the old people can conveniently go up and down stairs, the fixing bolts penetrate through the second fixing screw holes 103, are movably connected with the sliding block 102, penetrate through the second fixing screw holes 103 and are connected with the sliding block 102, the sliding block 102 can be fixed with the fixed ladder 9 and the folding ladder 11, the front end and the rear end of one side of the folding ladder 11 far away from the fixed ladder 9 are fixedly provided with connecting rods 111, one side of the connecting rod 111 far away from the folding ladder 11 is movably provided with a wheel shaft 112, a second rotating shaft 113 is movably arranged between the wheel shaft 112 and the connecting rod 111, the outer surface of the wheel shaft 112 far away from one side of the folding ladder 11 is movably provided with a roller 114, one side of the roller 114 far away from the folding ladder 11 is movably provided with a sucker 115, when the folding ladder 11 is put down, the wheel shaft 112 and the connecting rod 111 are rotated to be in a vertical state by utilizing the second rotating shaft, the wheel axle 112 and the connecting rod 111 are rotated into a parallel state through the second rotating shaft 113 after the angle is adjusted, the sucker 115 is in contact with the ground, the sucker 115 is utilized to suck the ground, the stair can be prevented from deviating when going up and down the stair, the stair shaking is reduced, the number of the fixing pieces 14 is four, the fixing pieces 14 are installed in a cross-shaped symmetrical mode, the four fixing pieces 14 are installed on the frame 1 in a cross-shaped symmetrical mode, and the frame 1 is made to be more stable during installation.
To sum up, the foldable stair for the plank attic clamps the frame 1 at the entrance and exit of the attic, then rotates the fixing plate 14 through the first bolt 15 to clamp the corner of the entrance and exit of the attic, and then drives the expansion screw into the first fixing screw hole 16 to fix the frame 1 at the entrance and exit of the attic, pulls the handle 17 to open the plywood 2 through the hinge 3, then the first connecting shaft 5 and the second connecting shaft 7 utilize the first movable shaft 8 to adjust the opening angle of the plywood 2, then rotates the foldable ladder 11 through the hinge 12 to be parallel to the fixed ladder 9 to form a complete stair, then the foldable stair can go up and down the stair through the pedal 10, when the foldable stair is put down, the top rod 22 rotates through the first rotating shaft 23 to be taken out of the clamping groove 21, then the telescopic rod 24 moves in the top rod 22 to adjust the length between the top rod 22 and the telescopic rod 24, and the top rod 22 and the telescopic rod 24 are fixed through the fastener 26, then the top rod 22 and the telescopic rod 24 are propped against the wall surface, so that the stair is more stable, the rubber pad 25 on the telescopic rod 24 can prevent the telescopic rod 24 from scratching the wall surface, when the stair is retracted, the telescopic rod 24 is retracted into the top rod 22 and fixed by the fastener 26, then the top rod 22 can be accommodated in the clamping groove 21 by rotating the top rod 22 through the first rotating shaft 23, when the folding ladder 11 is put down, the wheel shaft 112 and the connecting rod 111 are rotated to be in a vertical state by using the second rotating shaft 113, at the moment, the roller 114 is contacted with the ground, the inclined angle of the stair can be adjusted by pushing the folding ladder 11, after the angle is adjusted, the wheel shaft 112 and the connecting rod 111 are rotated to be in a parallel state by using the second rotating shaft 113, at the moment, the suction cup 115 is contacted with the ground, the deviation of the stair can be prevented when the stair goes up and down, the shaking of the stair is reduced, then run through fixing bolt in the inside of the fixed screw hole 103 of second and be connected with slider 102, can fix slider 102 with fixed ladder 9 and folding ladder 11, be convenient for the old person to go up and down stairs, fixed ladder 9 is parallel with folding ladder 11 when stair are put down, upwards stimulate handrail 94, first movable rod 91 and second movable rod 92 utilize second bolt 95 and second loose axle 93 to rotate this moment, first movable rod 91 props up handrail 94 with second movable rod 92 and forms the guardrail, the security when having improved the stair of going up and down stairs.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The element defined by the sentence "comprising one.. said, does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element, the electrical elements presented therein are all electrically connected to an external master and 220V mains, and the master may be a conventionally known apparatus, such as a computer, which acts as a control.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a plank loft is with folding stair, includes frame (1), its characterized in that: the lower end surface one side movable mounting of frame (1) has plywood (2), and movable mounting has hinge (3) between frame (1) and plywood (2), both ends internal surface intermediate position fixed mounting has first fixed block (4) around frame (1), and the one end movable mounting who keeps away from frame (1) of first fixed block (4) has first connecting axle (5), equal fixed mounting in both ends intermediate position has second fixed block (6) around the upper end surface of plywood (2), and the upper end movable mounting of second fixed block (6) has second connecting axle (7), movable mounting has first loose axle (8) between second connecting axle (7) and first connecting axle (5), the upper end external surface fixed mounting of plywood (2) has fixed ladder (9), and movable mounting has footboard (10) between the both ends internal surface around fixed ladder (9), one side movable mounting that hinge (3) were kept away from in fixed ladder (9) has folding ladder (11), and movable mounting has hinge (12) between fixed ladder (9) and folding ladder (11), equal movable mounting has fixed screw (13) between hinge (12) and fixed ladder (9) and folding ladder (11), the equal movable mounting in upper end surface edge department of frame (1) has stationary blade (14), and movable mounting has first bolt (15) between stationary blade (14) and frame (1), first fixed screw (16) have all been seted up to the upper end surface both sides of stationary blade (14), one side fixed mounting that hinge (3) were kept away from to the lower extreme surface of plywood (2) has handle (17).
2. The foldable stair for a plank attic as claimed in claim 1, wherein: draw-in groove (21) have all been seted up at both ends around the lower extreme surface of plywood (2), and one side movable mounting that the inside of draw-in groove (21) is close to hinge (3) has first pivot (23), and the lower extreme fixed mounting of first pivot (23) has ejector pin (22), the lower extreme movable mounting of ejector pin (22) has telescopic link (24), and the lower extreme surface parcel of telescopic link (24) has rubber pad (25), the one end surface that plywood (2) were kept away from in ejector pin (22) has binding (26) near the position movable mounting of lower extreme.
3. The foldable stair for a plank attic as claimed in claim 2, wherein: the ejection rod (22) is movably mounted inside the clamping groove (21), the telescopic rod (24) penetrates through the ejection rod (22), the fastener (26) penetrates through the ejection rod (22), and the fastener (26) is movably connected with the telescopic rod (24).
4. The foldable stair for a plank attic as claimed in claim 1, wherein: fixed ladder (9) and folding ladder (11) around both ends surface both sides all movable mounting have first movable rod (91), and the upper end movable mounting of first movable rod (91) has second movable rod (92), movable mounting has second loose axle (93) between first movable rod (91) and second movable rod (92), the upper end movable mounting of second movable rod (92) has handrail (94), between first movable rod (91) and fixed ladder (9) and between second movable rod (92) and handrail (94) all movable mounting have second bolt (95).
5. The foldable stair for a plank attic as claimed in claim 1, wherein: both ends internal surface has all seted up spout (101) around fixed ladder (9) and folding ladder (11), and the inside movable mounting of spout (101) has slider (102), fixed connection between slider (102) and footboard (10), the fixed screw (103) of second have all been seted up to fixed ladder (9) and folding ladder (11) front and back both ends surface.
6. The foldable stair for a plank attic as claimed in claim 5, wherein: and fixing bolts penetrate through the inner parts of the second fixing screw holes (103), and are movably connected with the sliding blocks (102).
7. The foldable stair for a plank attic as claimed in claim 1, wherein: folding ladder (11) keep away from the equal fixed mounting in both ends at one side front and back of fixed ladder (9) and have connecting rod (111), and one side movable mounting that folding ladder (11) were kept away from in connecting rod (111) has shaft (112), movable mounting has second pivot (113) between shaft (112) and connecting rod (111), one side movable mounting that folding ladder (11) were kept away from to the surface of shaft (112) has gyro wheel (114), and one side movable mounting that folding ladder (11) were kept away from in gyro wheel (114) has sucking disc (115).
8. The foldable stair for a plank attic as claimed in claim 1, wherein: the number of the fixing pieces (14) is four, and the fixing pieces (14) are installed in a cross-shaped symmetrical mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911416221.6A CN111042463A (en) | 2019-12-31 | 2019-12-31 | Plank loft is with folding stair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911416221.6A CN111042463A (en) | 2019-12-31 | 2019-12-31 | Plank loft is with folding stair |
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| Publication Number | Publication Date |
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| CN111042463A true CN111042463A (en) | 2020-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911416221.6A Pending CN111042463A (en) | 2019-12-31 | 2019-12-31 | Plank loft is with folding stair |
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