CN205532248U - Height -adjustable's combination ladder - Google Patents
Height -adjustable's combination ladder Download PDFInfo
- Publication number
- CN205532248U CN205532248U CN201620049882.5U CN201620049882U CN205532248U CN 205532248 U CN205532248 U CN 205532248U CN 201620049882 U CN201620049882 U CN 201620049882U CN 205532248 U CN205532248 U CN 205532248U
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- China
- Prior art keywords
- ladder
- pedestal
- shaft
- handle
- lock
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model provides a height -adjustable's combination ladder, the combination ladder includes manhole ladder, outer ladder and is used for locking the locking device of manhole ladder and outer ladder, its characterized in that: locking device includes pedestal and handle two parts, the pedestal sets firmly in the ladder of outer ladder, has seted up the column cavity in the pedestal, supplies shaft -like lockpin to wear to establish, shaft -like lockpin is reciprocating motion in the column cavity, rotate handle sets up in the outside of pedestal, and its inboard concave rotation cavity that is equipped with should rotate the cavity cover and establish to rotate upward at the pedestal and move, tail positioning in the handle of shaft -like lockpin is with handle synchronous displacement in the axial, it is equipped with a plurality of inclined planes of mutually supporting within a definite time to rotate the inner wall of cavity and the outer wall of pedestal, the cover is equipped with a spring on the shaft -like lockpin, and this spring action is in between the head and column cavity of shaft -like lockpin, be equipped with the elastically positioned round pin in the handle, correspond it on the outer wall of pedestal and be equipped with the constant head tank. The utility model provides a contradiction that exists on locking reliability AND operation convenience of prior art, and rational in infrastructure, use extensively.
Description
Technical field
This utility model relates to combination ladder, is specifically related to a kind of locking for locking combination ladder inside and outside ladder cleat stanchion position
Device.
Background technology
Ladder, is the common tool climbed to a higher point, and common are vertical ladder or double ladder.In most cases, ladder can meet
The needs of climbing to a higher point of user, but in some cases, as when the limit that user needs the height climbed to a higher point to exceed ladder, now
Ladder just cannot meet the requirement climbed to a higher point.
In order to solve this problem, industry has invented a kind of combination ladder, and this combination ladder includes manhole ladder and outside staircase two parts, outward
The cleat stanchion of ladder is set on the cleat stanchion of manhole ladder, and constituting described outside staircase can slide up and down on manhole ladder, whole to reach to increase ladder
Body is climbed to a higher point the effect of the limit.In order to lock the cleat stanchion of the outside staircase position on the cleat stanchion of manhole ladder, it will usually at the cleat stanchion of interior outside staircase
Between locking device is set.Traditional locking device structure by arranging flexible lock pin in the outside of two cleat stanchions of outside staircase, and
Offer hole, some location along cleat stanchion length direction on the cleat stanchion of manhole ladder, utilize the elastic self-locking of this flexible lock pin to coordinate differing heights
Hole, the location location outside staircase of position and manhole ladder state.This conventional locking mechanisms finds to there is problems in that one in life-time service,
Such as the reliability in order to pursue locking, it is desirable to the spring of flexible lock pin to have enough pulling force, cause ladder regulation height time,
The very painstaking inconvenience of the unblock of this locking device；Two, as in order to pursue ladder heighten time, the operation ease of this locking device,
The spring requiring the most again flexible lock pin can not have the biggest pulling force, reduces the most again the reliability of locking.
Therefore, how to solve the contradiction between locking reliability and the operation ease that above-mentioned prior art exists, become
For the problem that this utility model is to be researched and solved.
Summary of the invention
The purpose of this utility model is to provide a kind of adjustable for height combination ladder, to overcome prior art in locking reliability
With operation ease present on contradiction.
For reaching above-mentioned purpose, the technical solution adopted in the utility model is: a kind of adjustable for height combination ladder, described group
Close ladder and include manhole ladder, outside staircase and for locking the locking device of manhole ladder and outside staircase, the cleat stanchion of described outside staircase be sheathed on described in
On the cleat stanchion of ladder, the cleat stanchion of described outside staircase offers outer lock hole along its thickness direction, corresponding institute on the cleat stanchion of described manhole ladder
State outer lock hole and offer multiple interior lock hole along the length direction of the cleat stanchion of manhole ladder；Described locking device is fixedly arranged on described outside staircase
Cleat stanchion on described outer lock hole at, reach to position manhole ladder by the locking of simultaneously externally lock hole and a certain interior lock hole
With the purpose of outside staircase position relationship, i.e. reach the locking to combination ladder；
Described locking device includes pedestal and handle two parts；Wherein,
Described pedestal is fixedly arranged on the cleat stanchion of described outside staircase, offers a cylindrical chamber in pedestal, and this cylindrical chamber is for one
Shaft-like lock pin wears, and the corresponding described outer lock hole of this cylindrical chamber is arranged；Described shaft-like lock pin is back and forth transported in cylindrical chamber
Dynamic, the head constituting shaft-like lock pin stretches into or removes described interior lock hole via described outer lock hole, thus realizes described locking
Device is to the locking of combination ladder and unblock；When the head of described shaft-like lock pin stretches in described interior lock hole, for described combination
The lock-out state of ladder, when the head of described shaft-like lock pin removes in described interior lock hole, is then the unblock shape of described combination ladder
State；
Described handle rotates the outside being arranged at described pedestal, has a Handheld Division；The inner side of handle is arranged with a rotation
Chamber, this rotation chamber is set on pedestal, constitutes described handle and rotates for axle with pedestal；The afterbody of described shaft-like lock pin is along axle
Overhang described pedestal to court and be positioned on described handle, constituting described shaft-like lock pin and described handle sync bit in the axial direction
Move；It is provided with the multiple inclined-planes cooperated between inwall and the outer wall of described pedestal of described rotation chamber, constitutes when described hands
When handle rotates, handle is capable of axial displacement outwardly, and draws described shaft-like lock pin displacement outwardly whereby, by shaft-like lock pin
Head remove described interior lock hole, unlock described combination ladder；
Wherein, described shaft-like lock pin being arranged with a spring, one end of this spring is resisted against the head of shaft-like lock pin, another
End is then resisted against in described cylindrical chamber；When described combination ladder is lock-out state, described shaft-like lock pin stretches into described interior inwardly
In lock hole, described spring is in the state upheld completely, and when described combination ladder is released state, described handle strip lever
Shape lock pin is in, towards outer displacement, described spring, the state compressed；
Being additionally provided with an elastic positioning pin in described handle, this elastic positioning pin is arranged towards the outer wall of described pedestal, pedestal
Outer wall on to being provided with two locating slots by elastic positioning pin；Design whereby, when described handle turns to the locking shape of combination ladder
During state position, described elastic positioning pin will snap in the first locating slot near outside staircase automatically, it is achieved to combination ladder lock-out state
Keep；And when described handle turns to the released state position of combination ladder, described elastic positioning pin will snap in outer end automatically
Second locating slot, it is achieved the holding to combination ladder released state.
Relevant content in technique scheme is explained as follows:
1. in such scheme, described cylindrical chamber is cylindric, and the main body of described shaft-like lock pin is cylindric.
2., in such scheme, the afterbody of described shaft-like lock pin is positioned on described handle by snap ring or clip spring structure, also
Can be positioned by other location structures, not enumerate.
3. in such scheme, by the setting on described inclined-plane so that described handle can realize axially-movable by rotation；
And the setting on multiple inclined-plane, can lifting handle rotates further stationarity, improve the feel of operator.
4. in such scheme, described elastic positioning pin has pin rod and plunger two parts, the corresponding described location of described plunger
Groove arrange, described pin rod is arranged with one second spring, one end of this second spring is resisted against described plunger, the other end then against
In described handle.Described elastic positioning pin can also use other versions, as the form of spring joined by ball.
Operation principle of the present utility model and advantage are as follows:
A kind of adjustable for height combination ladder of this utility model, including manhole ladder, outside staircase and for locking the locking of interior outside staircase
Device；This locking device includes pedestal and the handle being sheathed on pedestal, is wherein equipped with a shaft-like lock pin, this bar in pedestal
The afterbody of shape lock pin passes pedestal and is connected location with handle, constitutes and links with handle, moves reciprocatingly, so that shaft-like lock pin
Head stretch into or remove interior lock hole via outer lock hole, and then locking or unlock combination ladder.Compared to existing technologies, originally
Utility model is rational in infrastructure, particularly by the cooperation on inclined-planes multiple between pedestal and handle so that the rotation of handle can not only be real
Existing axially-movable, moreover it is possible to protect the steady and facility of operation rotated；Additionally by spring sheathed on shaft-like lock pin and elasticity
The setting of alignment pin, moreover it is possible to ensure the reliability of combination ladder locking, solves prior art convenient with operation in locking reliability
Contradiction present on property.To sum up, this utility model has the advantages such as rational in infrastructure, operation is convenient, safe and reliable, may be used for each
The combination ladder of type.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation one (master regards) of this utility model embodiment；
Accompanying drawing 2 is the structural representation two (side-looking) of this utility model embodiment；
Accompanying drawing 3 is the partial enlarged drawing in Fig. 1 at A；
Accompanying drawing 4 is the partial enlarged drawing in Fig. 2 at B；
Accompanying drawing 5 is the decomposition explosion figure one of locking device in this utility model embodiment；
Accompanying drawing 6 is the decomposition explosion figure two of locking device in this utility model embodiment.
In the figures above: 1. manhole ladder；2. outside staircase；Outer lock hole；4. lock hole in；5. pedestal；6. handle；7. column chamber
Room；The most shaft-like lock pin；The head of the most shaft-like lock pin；10. Handheld Division；11. rotate chamber；The afterbody of 12. shaft-like lock pins；13. is oblique
Face；14. springs；15. elastic positioning pins；16. first locating slots；17. snap rings；18. pin rods；19. plungers；20. second springs.
Detailed description of the invention
Below in conjunction with the accompanying drawings and this utility model is further described by embodiment:
Embodiment: see shown in accompanying drawing 1～6, a kind of adjustable for height combination ladder, described combination ladder includes manhole ladder 1, outside staircase
2 and for locking manhole ladder 1 and the locking device of outside staircase 2, the cleat stanchion of described outside staircase 2 is sheathed on the cleat stanchion of described manhole ladder 1, institute
State and offer outer lock hole 3 along its thickness direction on the cleat stanchion of outside staircase 2, corresponding described outer lock hole 3 on the cleat stanchion of described manhole ladder 1
Length direction along the cleat stanchion of manhole ladder 1 offers multiple interior lock hole 4；Described locking device is fixedly arranged on the cleat stanchion of described outside staircase 2
On described outer lock hole at 3, reach to position manhole ladder 1 He by the locking of simultaneously externally lock hole 3 and a certain interior lock hole 4
The purpose of outside staircase 2 position relationship, i.e. reaches the locking to combination ladder；
Described locking device includes pedestal 5 and handle 6 two parts；Wherein,
Described pedestal 5 is fixedly arranged on the cleat stanchion of described outside staircase 2, offers a cylindrical chamber 7 in pedestal 5, this cylindrical chamber 7
Wear for a shaft-like lock pin 8, and the corresponding described outer lock hole 3 of this cylindrical chamber 7 is arranged；Described shaft-like lock pin 8 is at cylindrical chamber 7
Interior reciprocating motion, the head 9 constituting shaft-like lock pin 8 stretches into or removes described interior lock hole 4 via described outer lock hole 3, thus
Realize described locking device to the locking of combination ladder and unblock；When the head 9 of described shaft-like lock pin 8 stretches into described interior lock hole 4
Time interior, for the lock-out state of described combination ladder, when the head 9 of described shaft-like lock pin 8 removes in described interior lock hole 4, it is then
The released state of described combination ladder；
Described handle 6 rotates the outside being arranged at described pedestal 5, has a Handheld Division 10；The inner side of handle 6 is arranged with one
Rotating chamber 11, this rotation chamber 11 is set on pedestal 5, constitutes described handle 6 and rotates for axle with pedestal 5；Described rod lock
The afterbody 12 of pin 8, axially towards overhanging described pedestal 5 and being positioned on described handle 6, constitutes described shaft-like lock pin 8 with described
Handle 6 synchronous shift in the axial direction；It is provided with between inwall and the outer wall of described pedestal 5 of described rotation chamber 11 and to cooperate
Multiple inclined-planes 13, are constituted when described handle 6 rotates, and handle 6 is capable of axial displacement outwardly, and draws described bar whereby
The head 9 of shaft-like lock pin 8, towards outer displacement, is removed described interior lock hole 4, unlocks described combination ladder by shape lock pin 8；
Wherein, described shaft-like lock pin 8 being arranged with a spring 14, one end of this spring 14 is resisted against the head of shaft-like lock pin 8
Portion 9, the other end is then resisted against in described cylindrical chamber 7；When described combination ladder is lock-out state, described shaft-like lock pin 8 is inwardly
Stretching in described interior lock hole 4, described spring 14 is in the state upheld completely, and when described combination ladder is released state,
Described handle 6 drives shaft-like lock pin 8 to be in, towards outer displacement, described spring 14, the state compressed；
Being additionally provided with an elastic positioning pin 15 in described handle 6, this elastic positioning pin 15 sets towards the outer wall of described pedestal 5
Put, to being provided with two locating slots by elastic positioning pin 15 on the outer wall of pedestal 5；Design whereby, when described handle 6 turns to combination
During the lock-out state position of ladder, described elastic positioning pin 15 will snap in the first locating slot 16 near outside staircase 2 automatically, it is achieved to group
Close the holding of ladder lock-out state；And when described handle 6 turns to the released state position of combination ladder, described elastic positioning pin 15
To automatically snap in second locating slot (not drawing in figure) of outer end, it is achieved the holding to combination ladder released state.
Wherein, the afterbody 12 of described shaft-like lock pin 8 is positioned on described handle 6 by snap ring 17 or clip spring structure, it is possible to
To be positioned by other location structures, do not enumerate.
Wherein, by the setting on described inclined-plane 13 so that described handle 6 can realize axially-movable by rotation；And it is many
The setting on individual inclined-plane 13, the energy stationarity that lifting handle 6 rotates further, improves the feel of operator.
Wherein, described elastic positioning pin 15 has pin rod 18 and plunger 19 two parts, the corresponding described location of described plunger 19
Groove is arranged, and described pin rod 18 is arranged with one second spring 20, and one end of this second spring 20 is resisted against described plunger 19, another
End is then resisted against in described handle 6.Described elastic positioning pin 15 can also use other versions, as the shape of spring joined by ball
Formula.
A kind of adjustable for height combination ladder of this utility model, including manhole ladder, outside staircase and for locking the locking of interior outside staircase
Device；This locking device includes pedestal and the handle being sheathed on pedestal, is wherein equipped with a shaft-like lock pin, this bar in pedestal
The afterbody of shape lock pin passes pedestal and is connected location with handle, constitutes and links with handle, moves reciprocatingly, so that shaft-like lock pin
Head stretch into or remove interior lock hole via outer lock hole, and then locking or unlock combination ladder.Compared to existing technologies, originally
Utility model is rational in infrastructure, particularly by the cooperation on inclined-planes multiple between pedestal and handle so that the rotation of handle can not only be real
Existing axially-movable, moreover it is possible to protect the steady and facility of operation rotated；Additionally by spring sheathed on shaft-like lock pin and elasticity
The setting of alignment pin, moreover it is possible to ensure the reliability of combination ladder locking, solves prior art convenient with operation in locking reliability
Contradiction present on property.To sum up, this utility model has the advantages such as rational in infrastructure, operation is convenient, safe and reliable, may be used for each
The combination ladder of type.
Above-described embodiment only for technology of the present utility model design and feature are described, its object is to allow and is familiar with technique
Personage will appreciate that content of the present utility model and implement according to this, protection domain of the present utility model can not be limited with this.
All according to this utility model spirit made equivalence change or modify, all should contain protection domain of the present utility model it
In.
Claims (2)
1. an adjustable for height combination ladder, described combination ladder includes manhole ladder, outside staircase and for locking the lock of manhole ladder and outside staircase
Determining device, the cleat stanchion of described outside staircase is sheathed on the cleat stanchion of described manhole ladder, and the cleat stanchion of described outside staircase is offered along its thickness direction
Having outer lock hole, on the cleat stanchion of described manhole ladder, corresponding described outer lock hole offers multiple interior along the length direction of the cleat stanchion of manhole ladder
Lock hole；At the described outer lock hole that described locking device is fixedly arranged on the cleat stanchion of described outside staircase, by the most externally lock hole
And the locking of a certain interior lock hole reaches to position manhole ladder and the purpose of outside staircase position relationship, i.e. reach the locking to combination ladder；
It is characterized in that:
Described locking device includes pedestal and handle two parts；Wherein,
Described pedestal is fixedly arranged on the cleat stanchion of described outside staircase, offers a cylindrical chamber in pedestal, and this cylindrical chamber is shaft-like for one
Lock pin wears, and the corresponding described outer lock hole of this cylindrical chamber is arranged；Described shaft-like lock pin moves back and forth in cylindrical chamber, structure
The head becoming shaft-like lock pin stretches into or removes described interior lock hole via described outer lock hole, thus realizes described locking device pair
The locking of combination ladder and unblock；When the head of described shaft-like lock pin stretches in described interior lock hole, for the lock of described combination ladder
Determine state, when the head of described shaft-like lock pin removes in described interior lock hole, be then the released state of described combination ladder；
Described handle rotates the outside being arranged at described pedestal, has a Handheld Division；The inner side of handle is arranged with a rotation chamber,
This rotation chamber is set on pedestal, constitutes described handle and rotates for axle with pedestal；The afterbody of described shaft-like lock pin axially towards
Overhang described pedestal and be positioned on described handle, constituting described shaft-like lock pin and described handle synchronous shift in the axial direction；
It is provided with the multiple inclined-planes cooperated between inwall and the outer wall of described pedestal of described rotation chamber, constitutes when described handle turns
Time dynamic, handle is capable of axial displacement outwardly, and draws described shaft-like lock pin displacement outwardly whereby, by the head of shaft-like lock pin
Portion removes described interior lock hole, unlocks described combination ladder；
Wherein, described shaft-like lock pin being arranged with a spring, one end of this spring is resisted against the head of shaft-like lock pin, and the other end is then
It is resisted against in described cylindrical chamber；When described combination ladder is lock-out state, described shaft-like lock pin stretches into described interior locking inwardly
In hole, described spring is in the state upheld completely, and when described combination ladder is released state, described handle strip moves rod lock
Pin is towards outer displacement, and described spring is in the state compressed；
Being additionally provided with an elastic positioning pin in described handle, this elastic positioning pin is arranged, outside pedestal towards the outer wall of described pedestal
To being provided with two locating slots by elastic positioning pin on wall；Design whereby, when described handle turns to the lock-out state position of combination ladder
When putting, described elastic positioning pin will snap in the first locating slot near outside staircase automatically, it is achieved the holding to combination ladder lock-out state；
And when described handle turns to the released state position of combination ladder, described elastic positioning pin is fixed by automatically snap in outer end second
Position groove, it is achieved the holding to combination ladder released state.
Combination ladder the most according to claim 1, it is characterised in that: described elastic positioning pin has pin rod and plunger two
Point, the corresponding described locating slot of described plunger is arranged, and described pin rod is arranged with one second spring, one end of this second spring against
In described plunger, the other end is then resisted against in described handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620049882.5U CN205532248U (en) | 2016-01-19 | 2016-01-19 | Height -adjustable's combination ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620049882.5U CN205532248U (en) | 2016-01-19 | 2016-01-19 | Height -adjustable's combination ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205532248U true CN205532248U (en) | 2016-08-31 |
Family
ID=56765366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620049882.5U Withdrawn - After Issue CN205532248U (en) | 2016-01-19 | 2016-01-19 | Height -adjustable's combination ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205532248U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105525862A (en) * | 2016-01-19 | 2016-04-27 | 苏州飞华铝制工业有限公司 | Combined ladder with adjustable height |
| CN109398467A (en) * | 2018-10-10 | 2019-03-01 | 好孩子儿童用品有限公司 | A kind of perambulator |
| CN114482497A (en) * | 2022-03-04 | 2022-05-13 | 中科建工集团有限公司 | Outer wall construction removes slide rail device |
-
2016
- 2016-01-19 CN CN201620049882.5U patent/CN205532248U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105525862A (en) * | 2016-01-19 | 2016-04-27 | 苏州飞华铝制工业有限公司 | Combined ladder with adjustable height |
| CN105525862B (en) * | 2016-01-19 | 2018-01-09 | 苏州飞华铝制工业有限公司 | A kind of adjustable for height combination ladder |
| CN109398467A (en) * | 2018-10-10 | 2019-03-01 | 好孩子儿童用品有限公司 | A kind of perambulator |
| CN114482497A (en) * | 2022-03-04 | 2022-05-13 | 中科建工集团有限公司 | Outer wall construction removes slide rail device |
| CN114482497B (en) * | 2022-03-04 | 2023-09-15 | 中科建工集团有限公司 | Movable sliding rail device for outer wall construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160831 Effective date of abandoning: 20180109 |
|
| AV01 | Patent right actively abandoned |