CN203729856U - Height-adjustable ladder - Google Patents
Height-adjustable ladder Download PDFInfo
- Publication number
- CN203729856U CN203729856U CN201420130580.1U CN201420130580U CN203729856U CN 203729856 U CN203729856 U CN 203729856U CN 201420130580 U CN201420130580 U CN 201420130580U CN 203729856 U CN203729856 U CN 203729856U
- Authority
- CN
- China
- Prior art keywords
- ladder
- foot
- interior bar
- spring
- seesaw
- 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.)
- Expired - Fee Related
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 125000006850 spacer group Chemical group 0.000 claims description 12
- 239000004411 aluminium Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 abstract 3
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- VMXUWOKSQNHOCA-UKTHLTGXSA-N ranitidine Chemical compound [O-][N+](=O)\C=C(/NC)NCCSCC1=CC=C(CN(C)C)O1 VMXUWOKSQNHOCA-UKTHLTGXSA-N 0.000 description 1
Landscapes
- Ladders (AREA)
Abstract
The utility model provides a height-adjustable ladder. The height-adjustable ladder comprises a ladder body, inner rods and clamping position adjusting mechanisms, wherein the ladder body comprises two ladder frames; the top ends of the two ladder frames are pivotally connected for opening and closing; each ladder frame is provided with two inclined ladder feet opening outwards; a plurality of foot bars are arranged between the two ladder feet in parallel; the hollow parts at the bottoms of the ladder feet are sleeved with the inner rods; flexible springs are arranged between the inner rods and the ladder feet; one end of each spring penetrates through an inner hole formed in the bottom of each inner rod in a hooking manner, and the other end is erected in the middle of the lower section of each ladder foot in a penetrating manner through a bolt; rows of interval holes are formed in the edge of the inner rod; the clamping position adjusting mechanisms are arranged on openings formed in the edges of the ladder feet; each clamping position adjusting mechanism is provided with a warping plate; the middle of each warping plate connected with a spring in a penetrating manner through a pivot, and the warping plate is arranged on a pivoting seat in a cascade manner; an interval hole with an inward bent sharp mouth penetrating through the opening and placed in the inner rod is formed in one end of each warping plate, and a pressing handle is arranged at the other end of the warping plate. According to the utility model, in virtue of flexible height, the high-low potential difference of placing positions can be reduced to enable the ladder to be stable.
Description
Technical field
The utility model relates to a kind of ladder, especially a kind of ladder of adjustment height.
Background technology
Ladder is a kind of instrument that often will use during we live, and for example ascend operation in family, as more changed the bulb, roof maintenance, interior decoration, installation circuit ... Deng mostly using ladder.In general life, A type working stand is modal structure, is mainly linked by two ladder upper end string pivots, when use, can open, and the used time can not amount to.Known A type working stand structure, because its overall volume is large, carry inconvenience, after folding, also can take of such a size space, lack and use elasticity, and its foot of ladder design is imperfect, mostly can only be used for being cross-placed on smooth ground, as run into rugged ground, such as ladder, hillside fields etc., foot of ladder length cannot rapid adjustment uniform stability deficiency, stands reluctantly safety problem easily occurs.
Summary of the invention
In order to overcome defect of the prior art, the utility model provides a kind of ladder of adjustment height.
The utility model solves the technical scheme that its technical problem adopts: the utility model provides a kind of ladder of adjustment height, comprising: a terraced body, interior bar and screens guiding mechanism.
Ladder body, comprises two ladders, and two ladder top pivot joints are connected to form for folding, and each ladder has the both sides foot of ladder of outer, and several treadles be arranged in parallel between two foot of ladders; Interior bar is sheathed on the beneath middle vacancy of each foot of ladder, between interior bar and foot of ladder, dispose a spring, this spring is a coil tension spring, and spring one end penetrates and hooks on an endoporus of being located at interior bar bottom, the other end is worn and is erected in the middle of foot of ladder hypomere with bolt, is separately provided with spacer holes in a row in interior bar limit; Screens guiding mechanism is located on the opening on foot of ladder limit, it mainly has a seesaw, in the middle of it, go here and there and be located in a trunnion mount with pivot cross-under one spring, one end of seesaw is provided with interior curved sharp mouth and is placed to the spacer holes of interior bar through opening, the other end of seesaw is provided with a pressure handle, can make and on sharp mouth, move disengaging spacer holes when stressed.
The pressure handle of seesaw and sharp mouth are turned round system by metal cut-parts and are formed.
Ladder body and interior bar can be made by aluminium extruded type tubing, and for strengthening safety in utilization, in it, under bar, can be provided with anti-skidding sleeve gasket.
The beneficial effects of the utility model are: can highly reduce putting position by stretching and set high low potential difference with firm ladder, for user brings convenience.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is design principle figure of the present utility model.
Fig. 2 is generalized section of the present utility model.
1. terraced bodies in figure, 2. interior bar, 3. screens guiding mechanism, 4. ladder, 5. foot of ladder, 6. treadle, 7. spring, 8. endoporus, 9. bolt, 10. spacer holes, 11. openings, 12. seesaws, 13. pivots, 14. springs, 15. trunnion mounts, 16. sharp mouths, 17. pressure handles, 18. anti-skidding sleeve gaskets.
Detailed description of the invention
As depicted in figs. 1 and 2, the utility model provides a kind of ladder of adjustment height, mainly comprises: a terraced body 1, interior bar 2 and screens guiding mechanism 3, concrete structure is as follows.
Ladder body 1, comprises that two ladder 4, two ladder 4 top pivot joints are connected to form for folding, and each ladder 4 has the both sides foot of ladder 5 of outer, and several treadles 6 be arranged in parallel between two foot of ladders 5; Interior bar 2 is sheathed on the beneath middle vacancy of each foot of ladder 5, between interior bar 2 and foot of ladder 5, dispose a spring 7, this spring 7 is a coil tension spring, spring 7 one end penetrate to hook and are located on an endoporus 8 of interior bar 2 bottoms, the other end is worn and is erected in the middle of foot of ladder 5 hypomeres with bolt 9, is separately provided with spacer holes in a row 10 in interior bar 2 limits; Screens guiding mechanism 3 is located at the opening 11 on foot of ladder 5 limits, it mainly has a seesaw 12, in the middle of it, go here and there and be located in a trunnion mount 15 with pivot 13 cross-under one springs 14, one end of seesaw 12 is provided with interior curved sharp mouth 16 and is placed to through opening 11 spacer holes 10 of interior bar 2, the other end of seesaw 12 is provided with a pressure handle 17, can make on sharp mouth 16 and move and depart from spacer holes 10 when stressed.
The pressure handle 17 of seesaw 12 is turned round system with sharp mouth 16 by metal cut-parts and is formed.
Ladder body 1 and interior bar 2 can be made by aluminium extruded type tubing, and for strengthening safety in utilization, in it, under bar 2, can be provided with anti-skidding sleeve gasket 18.
In addition, these interior bar 2 height are to be defined between 20-40cm, and the spacing of spacer holes 10 is defined between 1-6cm as best.
When use, terraced body 1 each foot of ladder 5 of composition all has the interior bar 2 that conveniently telescopic is adjusted, when facing rugged ground, during such as ladder, hillside fields, can allow suitable outer the drawing of interior bar 2 of each foot of ladder 5 do flexible adjustment, coordinate flexible seesaw 12 that screens guiding mechanism 3 has, in one end, curved sharp mouth 16 is placed to the spacer holes 10 of interior bar 2 through opening 11, when being adjusted, interior bar 2 can draw lengthening to obtain location single-frame outward, in order to coordinate shape atural object putting position variously to set high low potential difference, foot of ladder 5 more firm safety in both sides when terraced body 1 is applied.
Claims (3)
1. a ladder for adjustment height, comprises a terraced body, interior bar and screens guiding mechanism, it is characterized in that: terraced body, comprise two ladders, two ladder top pivot joints are connected to form for folding, and each ladder has the both sides foot of ladder of outer, and several treadles be arranged in parallel between two foot of ladders; Interior bar is sheathed on the beneath middle vacancy of each foot of ladder, between interior bar and foot of ladder, dispose a spring, this spring is a coil tension spring, and spring one end penetrates and hooks on an endoporus of being located at interior bar bottom, the other end is worn and is erected in the middle of foot of ladder hypomere with bolt, is separately provided with spacer holes in a row in interior bar limit; Screens guiding mechanism is located on the opening on foot of ladder limit, it mainly has a seesaw, in the middle of it, go here and there and be located in a trunnion mount with pivot cross-under one spring, one end of seesaw is provided with interior curved sharp mouth and is placed to the spacer holes of interior bar through opening, the other end of seesaw is provided with a pressure handle, can make and on sharp mouth, move disengaging spacer holes when stressed.
2. the ladder of adjustment height according to claim 1, is characterized in that: the pressure handle of seesaw and sharp mouth are turned round system by metal cut-parts and formed.
3. the ladder of adjustment height according to claim 1, is characterized in that: terraced body and interior bar can be made by aluminium extruded type tubing, and for strengthening safety in utilization, in it, under bar, can be provided with anti-skidding sleeve gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420130580.1U CN203729856U (en) | 2014-03-22 | 2014-03-22 | Height-adjustable ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420130580.1U CN203729856U (en) | 2014-03-22 | 2014-03-22 | Height-adjustable ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203729856U true CN203729856U (en) | 2014-07-23 |
Family
ID=51199937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420130580.1U Expired - Fee Related CN203729856U (en) | 2014-03-22 | 2014-03-22 | Height-adjustable ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203729856U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2871145A1 (en) * | 2013-11-11 | 2015-05-13 | Grant Leum | Mobile loading dock with adjustable leg assembly |
| US9688493B2 (en) | 2015-11-09 | 2017-06-27 | Grant Leum | Mobile loading dock with side extensions |
-
2014
- 2014-03-22 CN CN201420130580.1U patent/CN203729856U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2871145A1 (en) * | 2013-11-11 | 2015-05-13 | Grant Leum | Mobile loading dock with adjustable leg assembly |
| US9051136B2 (en) | 2013-11-11 | 2015-06-09 | Grant Leum | Mobile loading dock with adjustable leg assembly |
| US9688493B2 (en) | 2015-11-09 | 2017-06-27 | Grant Leum | Mobile loading dock with side extensions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WANG YOUBO Free format text: FORMER OWNER: LU RUIYING Effective date: 20140820 Owner name: LIN CHUANQIONG Effective date: 20140820 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 200439 BAOSHAN, SHANGHAI TO: 404100 DIANJIANG, CHONGQING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140820 Address after: 5 groups of high Zhen Xin Qu village 404100 Chongqing County of Dianjiang City Patentee after: Wang Youbo Patentee after: Lin Chuanqiong Address before: 200439 Shanghai City, Baoshan District Yin Road 149 No. 23 Lane 303 Patentee before: Lu Ruiying |
|
| ASS | Succession or assignment of patent right |
Owner name: CHONGQING GUANGLIAN CONSTRUCTION ENGINEERING CO., Free format text: FORMER OWNER: WANG YOUBO Effective date: 20140826 Free format text: FORMER OWNER: LIN CHUANQIONG Effective date: 20140826 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140826 Address after: Gongnong Road Chongqing city Dianjiang County 404100 Gui Town, No. 2 Patentee after: Chongqing Guanglian Construction Engineering Co. Ltd. Address before: 5 groups of high Zhen Xin Qu village 404100 Chongqing County of Dianjiang City Patentee before: Wang Youbo Patentee before: Lin Chuanqiong |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20170322 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |