CN206545480U - Folding ladder with locking device - Google Patents
Folding ladder with locking device Download PDFInfo
- Publication number
- CN206545480U CN206545480U CN201720104491.3U CN201720104491U CN206545480U CN 206545480 U CN206545480 U CN 206545480U CN 201720104491 U CN201720104491 U CN 201720104491U CN 206545480 U CN206545480 U CN 206545480U
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- Prior art keywords
- ladder
- connecting rod
- locking device
- support bar
- lateral support
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- 230000001105 regulatory effect Effects 0.000 claims description 21
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
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- 239000004575 stone Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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Abstract
The utility model provides a kind of folding ladder with locking device, including：The ladder that two panels is hinged and the lateral support bar of the both sides setting in two panels ladder, the folding ladder with locking device also include：First connecting rod, is movably connected between first ladder and the first lateral support bar；Second connecting rod, is movably connected between second ladder and the first lateral support bar；The first locking device of the first connecting rod and/or second connecting rod is locked, the first connecting rod and/or second connecting rod is connected；First locking device is arranged on first ladder or is arranged on second ladder or is arranged on the first lateral support bar.The utility model adds the security of ladder.
Description
Technical field
The utility model is related to a kind of folding ladder, and in particular to a kind of folding ladder with locking device.
Background technology
At present, folding ladder causes the tumble injury of personnel on ladder in use easily to sideways.Can although occurring in that
The folding ladder of lateral support, i.e., set lateral support bar respectively in the both sides of two panels ladder, still, lacks between support bar and ladder
Weary effective restriction, support bar easily breaks away, still with larger potential safety hazard.
In summary, there is problems with the prior art：Folding ladder with lateral support bar, the easy side of support bar
It is sliding, with the hidden danger that safety is larger.
Utility model content
The utility model provides a kind of folding ladder with locking device, to solve the folding ladder with lateral support bar,
Support bar easily breaks away, the problem of causing potential safety hazard.
Therefore, the utility model proposes a kind of folding ladder with locking device, including：Ladder that two panels is hinged and
The lateral support bar set respectively in the both sides of two panels ladder, the ladder that two panels is hinged is respectively first ladder and second ladder
Son, the lateral support bar be respectively be arranged on the first lateral support bar of the side of two panels ladder first and be arranged on two panels ladder
Second lateral support bar of sub second side；The folding ladder with locking device also includes：
First connecting rod, is movably connected between first ladder and the first lateral support bar；
Second connecting rod, is movably connected between second ladder and the first lateral support bar；
The first locking device of the first connecting rod and/or second connecting rod is locked, the first connecting rod and/or second is connected
Connecting rod；
First locking device is arranged on first ladder or is arranged on second ladder or set
Put on the first lateral support bar.
Further, the folding ladder with locking device also includes：
Third connecting rod, is movably connected between first ladder and the second lateral support bar；
Fourth link, is movably connected between second ladder and the second lateral support bar；
Lock the third connecting rod and and/or fourth link the second locking device, connect the third connecting rod and/or the
Double leval jib；Second locking device is arranged on first ladder or is arranged on second ladder or set
On the second lateral support bar.
Further, the first connecting rod has the second of two ends, the respectively first end of first connecting rod and first connecting rod
End, the first end of the first connecting rod is fixedly connected on first ladder, the slidable company in the second end of first connecting rod
It is connected on the first lateral support bar；The second connecting rod has two ends, and the respectively first end of second connecting rod and first connects
Second end of bar, the first end of the second connecting rod is fixedly connected on second ladder, the second end energy of second connecting rod
That slides is connected on the first lateral support bar；First locking device is slidable to be arranged on the first lateral support bar
On, first locking device connects the first connecting rod and second connecting rod simultaneously.
Further, first locking device includes：
First lock sleeve, is set on the first lateral support bar, and first lock sleeve is the annular with opening,
First lock sleeve has the first lock sleeve first end and first the second end of lock sleeve；The opening is arranged on first lock
Between tight set first end and first the second end of lock sleeve；
The regulating bolt of the openings of sizes is controlled, through the opening, and first lock sleeve first is connected to
Between end and first the second end of lock sleeve；The length side of the vertical first lateral support bar of the length direction of the regulating bolt
To；The head end of the regulating bolt is nut, and the tail end of the regulating bolt is screw rod end；
The hinge of locking device, is arranged on the tail end of the regulating bolt, the vertical tune of length direction of the hinge
Save the length direction of bolt and the length direction of the parallel first lateral support bar；
Eccentric cam, is hinged on the hinge of the locking device and the outer rim of eccentric cam is pressed on first lock
On the lateral surface at the second end of tight set；
Handle, connects the eccentric cam；
Returning spring is locked, is set in the regulating bolt and positioned at the first lock sleeve first end and the first lock
Between the second end of tight set.
Further, first locking device is located at the lower section of the first end of the first connecting rod, and positioned at described
The lower section of the first end of second connecting rod.
Further, first ladder and second ladder are articulated and connected by the first hinge, first ladder
Attached bag is included：First vertical edge, the second vertical edge and the multiple horizontal edges being connected between first vertical edge and the second vertical edge, it is described
The first end of first connecting rod is fixedly connected on the first vertical edge of first ladder, the first end of the first connecting rod and institute
The distance for stating the first hinge is the first end and the 1/8 to 1/2 of the distance of the bottom of first ladder of the first connecting rod.
Further, the first vertical edge of first ladder, the first connecting rod and the first lateral support rod
In triangularity, the triangle, the first vertical edge of first ladder is 120 degree to the maximum with the angle of the first connecting rod.
Further, when the first vertical edge of first ladder and the angle of the first connecting rod are 120 degree to the maximum,
The angle of the first connecting rod and the first lateral support bar is 60 degree, the first vertical edge of first ladder and described
The angle of one lateral support bar is 60 degree.
Further, the maximum angle of first ladder and second ladder is 60 degree.
Further, the slewing area of the first lateral support bar is hemispherical.
In the utility model, pass through between the ladder that the first lateral support bar and ladder main, i.e. two panels are hinged respectively
One connecting rod and second connecting rod connection, so, add the stability of the first lateral support bar, add the first lateral support bar with
The stability and intensity of internal connection between the ladder that two panels is hinged, and then, by the first locking device to the first lateral support
Locked between the ladder that bar and ladder main, i.e. two panels are hinged, thus avoid the first lateral support bar in use with
Meaning is opened, and reduces potential safety hazard.
Similarly, the setting of third connecting rod and fourth link, adds the stability of the second lateral support bar, adds second
The stability and intensity of internal connection between the ladder that lateral support bar and two panels are hinged, and then, pass through the second locking device pair
Locked between the ladder that second lateral support bar and ladder main, i.e. two panels are hinged, so as to avoid the second lateral support
Bar arbitrarily opens in use, reduces potential safety hazard.
And then, it is fixedly connected in the first end of the first connecting rod on first ladder, the second of first connecting rod
End is slidable to be connected on the first lateral support bar；First locking device is arranged on the first lateral support bar, so,
Only slidable first locking device need to be set on the first lateral support bar, you can avoid in first ladder and second
The chute or track for rod slide are opened up on piece ladder, manufacture and the link installed is reduced, and can be by first
To the operation of the first locking device on lateral support bar, first connecting rod and second connecting rod are controlled respectively, accomplishes to kill two birds with one stone, accomplishes
Quick control and locking.
And then, by the first locking device with cam, bolt and spring reset structure, quick adjustment can be realized,
Rapid translating, locking is firm, and the effect of auto lock adds security.
And then, the first locking device is located at the lower section of the first connecting rod and second connecting rod, so, in staff from ladder
After getting off on son, locking can be achieved on the ground or unlock, it is not necessary to which it is to lock or unlock to climb to ladder again, it is ensured that upper ladder
The firm and safety of preceding ladder, it is ensured that the convenience that ladder is packed up after descending stair.
And then, the first vertical edge, the first connecting rod and the first lateral support rod triangularity of first ladder,
Firm attachment structure can be formed, the security of ladder is added.Meanwhile, the triangle is changeability, thus, the first lock
Tight device realizes length locking and angle locking, realizes the multifunctionality of locking.
When the first vertical edge of first ladder and the angle of the first connecting rod are 120 degree to the maximum, the triangle
It can be isosceles triangle, be conducive to the stabilization of ladder.
And then, the maximum angle of first ladder and second ladder is set as 60 degree, so as to realize first
The angle of ladder and second ladder is 60 degree, and the angle of first connecting rod and the first lateral support bar is 60 degree, described
The angle of first vertical edge of a piece of ladder and the first lateral support bar is 60 degree, that is, realizes first connecting rod, described first
The tetrahedron that lateral support bar, first ladder and second ladder are formed has multiple 60 degree of angles, forms multiple etc.
Side and the tetrahedron of isogonism so that whole ladder is to reach most stable of structure in mechanical property.
Brief description of the drawings
Fig. 1 is the folding ladder dimensional structure diagram of the present utility model with locking device；
Fig. 2 is the structural representation of the first locking device of the present utility model.
Drawing reference numeral explanation：
11st, first ladder 12, second ladder 13, the first lateral support bar 14, the second lateral support bar 151,
First connecting rod 152, second connecting rod 153, third connecting rod 154, fourth link 111, the first vertical edge 112, the second vertical edge
2nd, the first locking device 20, the first lock sleeve 21, regulating bolt 22, hinge 23, eccentric cam 24, handle
25th, locking returning spring 201, opening
Embodiment
In order to be more clearly understood to technical characteristic of the present utility model, purpose and effect, now control is illustrated
The utility model.
As shown in figure 1, the utility model proposes a kind of folding ladder with locking device, including：Ladder that two panels is hinged,
And the lateral support bar set respectively in the both sides of two panels ladder, the ladder that two panels is hinged is respectively first ladder 11 and
Two ladders 12, the lateral support bar is respectively the first lateral support bar 13, the Yi Jishe for being arranged on the side of two panels ladder first
Put the second lateral support bar 14 in the side of two panels ladder second；First lateral support bar 13 is located at first ladder 11 and second
Outside the rectangular parallelepiped space of the formation of ladder 12 or trapezoidal shape space, the second lateral support bar 14 also is located at first ladder 11 and the
Outside the rectangular parallelepiped space of two ladders 12 formation or trapezoidal shape space, the folding ladder with locking device also includes：
First connecting rod 151, is movably connected between the lateral support bar 13 of first ladder 11 and first；For example, the
One connecting rod 151 is slidable to be connected between the lateral support bar 13 of first ladder 11 and first；
Second connecting rod 152, is movably connected between the lateral support bar 13 of second ladder 12 and first；For example, the
Two connecting rods 152 are slidable to be connected between the lateral support bar 13 of second ladder 12 and first；
Lock the first locking device 2 of the first connecting rod and/or second connecting rod, connect the first connecting rod and/or the
Two connecting rods；First connecting rod or second connecting rod can be locked with a locking device respectively, can also share a locking device lock
Tightly；
First locking device 2 is arranged on first ladder or is arranged on second ladder or set
Put on the first lateral support bar.Lead to respectively between the ladder that first lateral support bar and ladder main, i.e. two panels are hinged
First connecting rod and second connecting rod connection are crossed, so, the stability of the first lateral support bar is added, adds the first lateral support
The stability and intensity of internal connection between the ladder that bar and two panels are hinged, and then, it is lateral to first by the first locking device
Locked, used so as to avoid the first lateral support bar between the ladder that support bar and ladder main, i.e. two panels are hinged
In arbitrarily open, reduce potential safety hazard.
Further, the folding ladder with locking device also includes：
Third connecting rod 153, is movably connected between the lateral support bar 14 of first ladder 11 and second；
Fourth link 154, is movably connected between the lateral support bar 14 of second ladder 12 and second；
Lock the third connecting rod and and/or fourth link the second locking device, connect the third connecting rod and/or the
Double leval jib；Second locking device is arranged on first ladder or is arranged on second ladder or set
On the second lateral support bar.
It is, ladder both sides are symmetrical structures, as the lateral support bar on both sides is with the structure of locking device, with
Realize that stress is symmetrical.
Further, as shown in figure 1, the first connecting rod 151 have two ends, respectively first connecting rod first end (on
End) and first connecting rod the second end (lower end), the first end of the first connecting rod is fixedly connected on first ladder 11,
Second end of first connecting rod is slidable to be connected on the first lateral support bar；The second connecting rod 12 has two ends, point
Not Wei second connecting rod first end (upper end) and the second end (lower end) of first connecting rod, the first end of the second connecting rod, which is fixed, to be connected
It is connected on second ladder, the second end of second connecting rod is slidable to be connected on the first lateral support bar；It is described
First locking device 2 is slidable to be arranged on the first lateral support bar 13, and first locking device 2 connects described simultaneously
One connecting rod 151 and second connecting rod 152.
So, only slidable first locking device 2 need to be set on the first lateral support bar 13, you can avoid
The chute or track for rod slide are opened up on first ladder and second ladder, manufacture and the link installed is reduced, and
And can by the operation on the first lateral support bar to the first locking device, while control first connecting rod and second connecting rod,
Accomplish to kill two birds with one stone, accomplish quick control and lock.
Further, as shown in Fig. 2 first locking device 2 includes：
First lock sleeve 20, elastic can be set on the first lateral support bar 13, can be with the first lock sleeve 20
The rotating shaft being connected with first connecting rod, and the rotating shaft connected with second connecting rod are set respectively, and first connecting rod and second connecting rod can
Relative to the independent rotation of the first lock sleeve 20；First lock sleeve is the annular with opening 201, for example, with opening 201
Rectangle annular, the first lock sleeve 20 can be provided with lug on the outer wall of the offside of opening 201, for setting respectively and the
The rotating shaft of one connecting rod connection, and the rotating shaft connected with second connecting rod；
Fig. 2 shows the locking principle schematic of the first locking device, and first lock sleeve has the first lock sleeve the
One end and first the second end of lock sleeve；The opening 201 is arranged on the first lock sleeve first end and the first lock sleeve second
Between end；When the opening 201 of the first lock sleeve 20 is loosened, the inwall of the first lock sleeve 20 and the first lateral support bar 13 it is outer
There is space, the first lock sleeve 20 can be slided on the first lateral support bar 13 between wall；When opening for the first lock sleeve 20
When mouth is tightened up, the space between the outer wall of the inwall of the first lock sleeve 20 and the first lateral support bar 13 eliminates or reduced, first
The outer wall of the inwall of lock sleeve 20 and the first lateral support bar 13 is fitted or pushed against, and the two forms static friction so that the first lock
Tight set 20 is fixed on the first lateral support bar 13, forms locking；
The regulating bolt 21 of control 201 sizes of the opening, through the opening 201, and is connected to first lock
Between 20 first ends of tight set and first the second end of lock sleeve；The vertical described first lateral branch of the length direction of the regulating bolt 21
The length direction of strut 13；The head end of the regulating bolt is nut, and the tail end of the regulating bolt is screw rod end；
The hinge 22 of locking device, is arranged on the tail end of the regulating bolt 21, and the length direction of the hinge 22 is vertical
The length direction of the length direction of the regulating bolt and the parallel first lateral support bar 13；
Eccentric cam 23, be hinged on the hinge 22 of the locking device and eccentric cam 23 outer rim be pressed on it is described
On the lateral surface at first the second end of lock sleeve；
Handle 24, connects the eccentric cam 23；
Returning spring 25 is locked, is set in the regulating bolt 22 and positioned at the first lock sleeve first end and the
Between one the second end of lock sleeve.
Handle 24 is pulled with hand, drives eccentric cam 23 to be rotated around hinge 22, during eccentric cam 23 is rotated, is driven
The advance and retreat of regulating bolt 21, so that the size of opening 201 is have adjusted, thus, when the opening of the first lock sleeve 20 is tightened up, first
Space between the outer wall of the inwall of lock sleeve 20 and the first lateral support bar 13 eliminates or reduced, the inwall of the first lock sleeve 20
Fit or push against with the outer wall of the first lateral support bar 13, the two forms static friction so that the first lock sleeve 20 is fixed on institute
State on the first lateral support bar 13, form the locking of each connecting rod.Returning spring 25, for example, compression spring are locked, automatic return is played
Multiple effect, in favor of auto lock.By the first locking device with cam, bolt and spring reset structure, it can realize
Quick adjustment, rapid translating, locking is firm, and the effect of auto lock adds security.
Further, first locking device 2 is located at the lower section of the first end of the first connecting rod 151, and is located at
The lower section of the first end of the second connecting rod 152.So, after staff descends on a ladder, it can be achieved on the ground
Locking is unlocked, it is not necessary to which it is to lock or unlock to climb to ladder again, it is ensured that the firm and safety of ladder before upper ladder, it is ensured that under
The convenience that ladder is packed up after ladder.
Further, first ladder 11 and second ladder 12 are articulated and connected by the first hinge, and described first
Piece ladder includes：First vertical edge 111, the second vertical edge 112 and it is connected to multiple between first vertical edge and the second vertical edge
Horizontal edge, the first end of the first connecting rod is fixedly connected on the first vertical edge of first ladder, the first connecting rod 151
First end (upper end) and first hinge distance be the first connecting rod bottom of the first end with first ladder
Hold the 1/8 to 1/2 of the distance of (earth terminal).So, the position of first connecting rod sets reasonable, can accomplish angle adjustment and length
Adjustment, can make first connecting rod rationally undertake stress, share the overall stress of ladder, mitigate the stress at other positions.Especially,
The first end (upper end) of one connecting rod 151 and the distance of first hinge be the first connecting rod first end with described first
The 1/6 to 1/4 of the distance of the bottom (earth terminal) of ladder, this ratio is adapted to undertake reasonable mechanical.
Further, the first vertical edge 111 of first ladder, the first connecting rod 151 and the first lateral branch
In the formation triangle of strut 13, the triangle, the folder of the first vertical edge 111 and the first connecting rod 151 of first ladder
Angle is 120 degree to the maximum, can meet larger adjustable range, can accomplish rational loading angle again.
Further, when the first vertical edge of first ladder and the angle of the first connecting rod are 120 degree to the maximum,
The angle of the first connecting rod and the first lateral support bar is 60 degree, the first vertical edge of first ladder and described
The angle of one lateral support bar is 60 degree, and so, bearing distribution is reasonable.
Further, the maximum angle of first ladder 11 and second ladder 12 is 60 degree.So as to realize
The angle of first ladder and second ladder is 60 degree, and the angle of first connecting rod and the first lateral support bar is 60 degree,
First vertical edge of first ladder and the angle of the first lateral support bar are 60 degree, that is, realize first connecting rod, institute
Stating the tetrahedron that the first lateral support bar, first ladder and second ladder formed has multiple 60 degree of angles, is formed many
The tetrahedron of individual equilateral and isogonism so that whole ladder is to reach most stable of structure in mechanical property.
Further, the slewing area of the first lateral support bar 13 is hemispherical, and the first lateral support bar 13 is located at
Outside the rectangular parallelepiped space or trapezoidal shape space of first ladder 11 and the formation of second ladder 12, the second lateral support bar 14
Outside the rectangular parallelepiped space formed positioned at first ladder 11 and second ladder 12 or trapezoidal shape space, the first lateral support bar
13 and two lateral support bar 14 can be located at the centre position of first ladder 11 and second ladder 12, first can also be located at
The non-intermediate positions of piece ladder 11 and second ladder 12, can be adjusted according to practical application situation.
The utility model adds the stability of the twoth lateral support bar, adds two lateral support bars and is cut with scissors with two panels
The stability and intensity of internal connection between the ladder connect, and then, by two locking devices to two lateral support bars and ladder
Locked, arbitrarily opened in use so as to avoid two lateral support bars between the ladder that sub- main body, i.e. two panels are hinged,
Reduce potential safety hazard.
The schematical embodiment of the utility model is the foregoing is only, model of the present utility model is not limited to
Enclose.It can be mutually combined under conditions of not conflicting for each part of the present utility model, any those skilled in the art,
Made equivalent variations and modification, all should belong to this practicality on the premise of not departing from design of the present utility model and principle 5
Novel protected scope.
Claims (10)
1. a kind of folding ladder with locking device, it is characterised in that including：Ladder that two panels is hinged and in two panels ladder
The lateral support bar that sets respectively of both sides, the ladder that two panels is hinged is respectively first ladder and second ladder, the side
It is respectively to be arranged on the first lateral support bar of the side of two panels ladder first and be arranged on the side of two panels ladder second to support bar
Second lateral support bar；The folding ladder with locking device also includes：
First connecting rod, is movably connected between first ladder and the first lateral support bar；
Second connecting rod, is movably connected between second ladder and the first lateral support bar；
The first locking device of the first connecting rod and/or second connecting rod is locked, the first connecting rod and/or the second company is connected
Bar；
First locking device is arranged on first ladder or is arranged on second ladder or is arranged on
On the first lateral support bar.
2. there is the folding ladder of locking device as claimed in claim 1, it is characterised in that the folding with locking device
Ladder also includes：
Third connecting rod, is movably connected between first ladder and the second lateral support bar；
Fourth link, is movably connected between second ladder and the second lateral support bar；
Lock the third connecting rod and and/or fourth link the second locking device, connect the third connecting rod and/or the 4th connect
Bar；Second locking device is arranged on first ladder or is arranged on second ladder or is arranged on
On two lateral support bars.
3. there is the folding ladder of locking device as claimed in claim 1, it is characterised in that the first connecting rod has two ends,
Respectively the second end of the first end of first connecting rod and first connecting rod, the first end of the first connecting rod is fixedly connected on described
On a piece of ladder, the second end of first connecting rod is slidable to be connected on the first lateral support bar；The second connecting rod tool
There is second end at two ends, the respectively first end of second connecting rod and first connecting rod, the first end of the second connecting rod is fixedly connected
On second ladder, the second end of second connecting rod is slidable to be connected on the first lateral support bar；Described
One locking device is slidable to be arranged on the first lateral support bar, and first locking device connects the first connecting rod simultaneously
And second connecting rod.
4. there is the folding ladder of locking device as claimed in claim 3, it is characterised in that first locking device includes：
First lock sleeve, is set on the first lateral support bar, and first lock sleeve is the annular with opening, described
First lock sleeve has the first lock sleeve first end and first the second end of lock sleeve；The opening is arranged on first lock sleeve
Between first end and first the second end of lock sleeve；
Control the regulating bolt of the openings of sizes, through the opening, and be connected to the first lock sleeve first end and
Between first the second end of lock sleeve；The length direction of the vertical first lateral support bar of the length direction of the regulating bolt；
The head end of the regulating bolt is nut, and the tail end of the regulating bolt is screw rod end；
The hinge of locking device, is arranged on the tail end of the regulating bolt, the vertical regulation spiral shell of length direction of the hinge
The length direction of the length direction of bolt and the parallel first lateral support bar；
Eccentric cam, is hinged on the hinge of the locking device and the outer rim of eccentric cam is pressed on first lock sleeve
On the lateral surface at the second end；
Handle, connects the eccentric cam；
Returning spring is locked, is set in the regulating bolt and positioned at the first lock sleeve first end and the first lock sleeve
Between second end.
5. there is the folding ladder of locking device as claimed in claim 1, it is characterised in that first locking device is located at institute
State the lower section of the first end of first connecting rod, and the lower section of the first end positioned at the second connecting rod.
6. there is the folding ladder of locking device as claimed in claim 3, it is characterised in that first ladder and second
Ladder is articulated and connected by the first hinge, and first ladder includes：First vertical edge, the second vertical edge and it is connected to described
Multiple horizontal edges between first vertical edge and the second vertical edge, the first end of the first connecting rod is fixedly connected on first ladder
The first vertical edge on, the distance of the first end of the first connecting rod and first hinge be the first connecting rod first end with
The 1/8 to 1/2 of the distance of the bottom of first ladder.
7. there is the folding ladder of locking device as claimed in claim 6, it is characterised in that the first of first ladder is erected
In side, the first connecting rod and the first lateral support rod triangularity, the triangle, the first of first ladder
The angle of vertical edge and the first connecting rod is 120 degree to the maximum.
8. there is the folding ladder of locking device as claimed in claim 7, it is characterised in that the first of first ladder
When the angle of vertical edge and the first connecting rod is 120 degree to the maximum, the angle of the first connecting rod and the first lateral support bar
For 60 degree, the first vertical edge of first ladder and the angle of the first lateral support bar are 60 degree.
9. there is the folding ladder of locking device as claimed in claim 7, it is characterised in that first ladder and second
The maximum angle of ladder is 60 degree.
10. there is the folding ladder of locking device as claimed in claim 1, it is characterised in that the first lateral support bar
Slewing area is hemispherical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720104491.3U CN206545480U (en) | 2017-01-23 | 2017-01-23 | Folding ladder with locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720104491.3U CN206545480U (en) | 2017-01-23 | 2017-01-23 | Folding ladder with locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206545480U true CN206545480U (en) | 2017-10-10 |
Family
ID=59992557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720104491.3U Expired - Fee Related CN206545480U (en) | 2017-01-23 | 2017-01-23 | Folding ladder with locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206545480U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593285A (en) * | 2017-01-23 | 2017-04-26 | 黄崇华 | Folding ladder with locking device |
| WO2018130166A1 (en) * | 2017-01-15 | 2018-07-19 | 黄崇华 | Folding stepladder |
-
2017
- 2017-01-23 CN CN201720104491.3U patent/CN206545480U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018130166A1 (en) * | 2017-01-15 | 2018-07-19 | 黄崇华 | Folding stepladder |
| CN106593285A (en) * | 2017-01-23 | 2017-04-26 | 黄崇华 | Folding ladder with locking device |
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Granted publication date: 20171010 |