CN109162632A - Improved double ladder - Google Patents
Improved double ladder Download PDFInfo
- Publication number
- CN109162632A CN109162632A CN201811008600.7A CN201811008600A CN109162632A CN 109162632 A CN109162632 A CN 109162632A CN 201811008600 A CN201811008600 A CN 201811008600A CN 109162632 A CN109162632 A CN 109162632A
- Authority
- CN
- China
- Prior art keywords
- ladder
- ladder bars
- rod piece
- bars
- double
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 description 5
- 150000001875 compounds Chemical class 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
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/42—Ladder feet; Supports therefor
- E06C7/423—Ladder stabilising struts
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/14—Ladders capable of standing by themselves
- E06C1/16—Ladders capable of standing by themselves with hinged struts which rest on the ground
- E06C1/18—Ladders capable of standing by themselves with hinged struts which rest on the ground with supporting struts formed as ladders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
The invention discloses a kind of improved double ladders, including by left ladder bars, the hinged double ladder constituted of right ladder bars, the middle part of both left ladder bars and right ladder bars is respectively articulated with a left rod piece and right rod piece, and the inner end of left rod piece and right rod piece is hinged with a sliding block；There is a trolley between double ladder, vertical affixed the sleeve in trolley top surface, it is slidably matched in sleeve and an elastic force bar is set, sliding slot is set in the body of rod of elastic force bar, the sliding block is slided up and down along sliding slot, and when left ladder bars and right ladder bars collapse, sliding block and sleeve top offset so that left ladder bars and right ladder bars angle between the two are at least 20 degree.The present invention can improve the balance of double ladder, be not easy to tumble, and ensure that safety, easy to use, improve working efficiency, of simple structure and low cost.
Description
Technical field
The present invention relates to a kind of improved double ladders.
Background technique
Double ladder is the ordinary articles in production and life, in actual use, when working range is larger, it is necessary to which people is more
It is secondary to repeat the process of the upper ladder of descending stair-movement-, it has not been convenient to and working efficiency is low；If people stands directly on mobile human on double ladder
Word ladder, and easily topple over double ladder, cause personal injury, it is dangerous.Currently, double ladder both domestic and external moves or passes through electricity
Dynamic auxiliary is mobile, or by other people come auxiliary pushing, structure is more complex, at high cost, and man power and material expends height, there has been no
Purely mechanic balancing device.
Summary of the invention
The purpose of the present invention is to provide improved double ladders, can improve the balance of double ladder, be not easy to tumble, ensure that
Safety, it is easy to use, working efficiency is improved, it is of simple structure and low cost.
The object of the present invention is achieved like this, improved double ladder, including by left ladder bars, the hinged structure of right ladder bars
At double ladder, the middle part of both left ladder bars and right ladder bars is respectively articulated with a left rod piece and right rod piece, left rod piece with
And the inner end of right rod piece is hinged with a sliding block；There is a trolley, trolley top surface is vertically solid between double ladder
Then a sleeve is slidably matched in sleeve and an elastic force bar is arranged, sliding slot, the cunning are arranged in the body of rod of elastic force bar
Block is slided up and down along sliding slot, and when left ladder bars and the gathering of right ladder bars, sliding block and sleeve top offset so that left ladder bars and right ladder
Bar angle between the two is at least 20 degree.
The present invention is a kind of balancing device of pure mechanic structure, which constitutes a unique six-bar mechanism, wherein wrapping
Include 3 hinge connections, 1 compound hinges, 2 sliding pairs and 1 spring mechanism.Left ladder bars and right ladder bars are connected by hinge
It connects, left ladder bars are connected by a hinge with the left rod piece of balancing device, and right ladder bars are connected by a hinge with the right rod piece of balancing device, balance
The left rod piece of device and right rod piece are connect with sliding block by compound hinges, and sliding block and trolley constitute sliding pair, and trolley and ground are constituted
Sliding pair.It is provided with limiting device on trolley, limits the moving range of sliding block, thus the left rod piece of limiting balance device and balance
The included angle of the right rod piece of device, i.e., when left ladder bars and right ladder bars collapse sliding block and sleeve top offset so that left ladder bars and
Right ladder bars angle between the two is at least 20 degree.Guarantee that the included angle of double ladder is consistently greater than 20 °, makes double ladder not in this way
It can topple over, guarantee the safety of user.Elastic force bar can reduce the impact force in motion process, improve the stress feelings of overall mechanism
Condition.The present invention is easy to use, can greatly improve working efficiency, of simple structure and low cost.
Detailed description of the invention
Below in conjunction with attached drawing, the present invention is described in further detail.
Fig. 1 is schematic view of the front view of the invention.
Specific embodiment
Improved double ladder, as shown in Figure 1, including by left ladder bars 1, the hinged double ladder constituted of right ladder bars 5, a left side
The middle part of 5 the two of ladder bars 1 and right ladder bars is respectively articulated with a left rod piece 2 and right rod piece 6, left rod piece 2 and right rod piece 6
Inner end it is hinged with a sliding block 3；There is a trolley, vertical affixed one of trolley top surface between double ladder
Sleeve 8 is slidably matched in sleeve 8 and an elastic force bar 4 is arranged, and elastic force bar 4 is atmospheric pressure pole or the body of rod for being set with spring.Bullet
Sliding slot 7 is set in the upper bar body of power bar 4, and the sliding block 3 is slided up and down along sliding slot 7, when left ladder bars 2 and right ladder bars 6
Sliding block 3 and 8 top of sleeve offset so that left ladder bars 1 and the angle between the two of right ladder bars 5 are at least 20 degree when gathering.
In use, assume left ladder bars 1 and right 5 30 ° of initial angle of ladder bars, initial time, user to double ladder one to
Left impact force, rotates counterclockwise left ladder bars 1 around the supporting point on itself and ground, right ladder bars 5 is driven to transport to the left with left rod piece 2
It is dynamic；Further, left rod piece 2 rotated clockwise around the revolute pair of itself and left ladder bars 1, right rod piece 6 around itself and right ladder bars 5 revolute pair
It rotates counterclockwise, while left rod piece 2 is with right rod piece 6 under effect, the sliding slot 7 with movable slider 3 on trolley is moved down；Into
One step, 3 compression elasticity bar 4 of sliding block, the left ladder bars 1 of this process and the angle of right ladder bars 5 gradually become smaller, the elastic force bar 4 of trolley and
Sleeve 8 guarantees that the left ladder bars 1 of this process and the minimum value of the angle of right ladder bars 5 are greater than 20 °, elastic force bar collectively as limiting device
4 elastic force is gradually increased, and when its elastic force numerical value reaches balance with impact force, double ladder and balancing device stop motion are completed
Closed action, the angle of double ladder becomes 20 ° by original 30 ° at this time；Further, user is gradually right by its center of gravity
It moves, right ladder bars 5 are greater than left ladder bars 1 by the holding power and stiction on ground at this time, when the stiction foot that left ladder bars 5 are subject to
When enough small, the elastic force bar 4 compressed at this time pushes sliding block 3 to move up along the chute, by left rod piece 2 push left ladder bars 1 to
Left movement completes expansion movement, and the angle of double ladder becomes 30 ° by 20 ° at this time, and double ladder has moved downward a distance,
So far a period of motion is completed, and safe and reliable.
Claims (1)
1. a kind of improved double ladder, including by left ladder bars, the hinged double ladder constituted of right ladder bars, it is characterized in that: left
The middle part of both ladder bars and right ladder bars is respectively articulated with a left rod piece and right rod piece, the inside of left rod piece and right rod piece
It holds hinged with a sliding block；There is a trolley between double ladder, vertical affixed the sleeve in trolley top surface, set
Be slidably matched an elastic force bar be set in cylinder, sliding slot is set in the body of rod of elastic force bar, the sliding block along sliding slot above and below
Sliding, when left ladder bars and right ladder bars collapse, sliding block and sleeve top offset so that left ladder bars and right ladder bars folder between the two
Angle is at least 20 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811008600.7A CN109162632A (en) | 2018-08-31 | 2018-08-31 | Improved double ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811008600.7A CN109162632A (en) | 2018-08-31 | 2018-08-31 | Improved double ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109162632A true CN109162632A (en) | 2019-01-08 |
Family
ID=64893643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811008600.7A Pending CN109162632A (en) | 2018-08-31 | 2018-08-31 | Improved double ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109162632A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112554772A (en) * | 2020-12-10 | 2021-03-26 | 王伟武 | Ladder for architectural decoration capable of changing gear, adjusting angle and height and moving left and right |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB368499A (en) * | 1931-02-19 | 1932-03-10 | Henry Moss Genese | Improvements in or relating to step-ladders or the like |
| GB598425A (en) * | 1945-09-03 | 1948-02-18 | Delapre Components Ltd | Improvements in ladders |
| CN101105111A (en) * | 2006-08-30 | 2008-01-16 | 大连理工大学 | Portable step-by-step self-walking ladder |
| CN102351135A (en) * | 2011-10-11 | 2012-02-15 | 广东工业大学 | Self-moving lifting platform |
| CN204238841U (en) * | 2014-10-20 | 2015-04-01 | 彭伟成 | A kind of novel electric power maintenance ladder |
-
2018
- 2018-08-31 CN CN201811008600.7A patent/CN109162632A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB368499A (en) * | 1931-02-19 | 1932-03-10 | Henry Moss Genese | Improvements in or relating to step-ladders or the like |
| GB598425A (en) * | 1945-09-03 | 1948-02-18 | Delapre Components Ltd | Improvements in ladders |
| CN101105111A (en) * | 2006-08-30 | 2008-01-16 | 大连理工大学 | Portable step-by-step self-walking ladder |
| CN102351135A (en) * | 2011-10-11 | 2012-02-15 | 广东工业大学 | Self-moving lifting platform |
| CN204238841U (en) * | 2014-10-20 | 2015-04-01 | 彭伟成 | A kind of novel electric power maintenance ladder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112554772A (en) * | 2020-12-10 | 2021-03-26 | 王伟武 | Ladder for architectural decoration capable of changing gear, adjusting angle and height and moving left and right |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190108 |
|
| WD01 | Invention patent application deemed withdrawn after publication |