CN108561065A - A kind of Household ladder - Google Patents
A kind of Household ladder Download PDFInfo
- Publication number
- CN108561065A CN108561065A CN201810088223.6A CN201810088223A CN108561065A CN 108561065 A CN108561065 A CN 108561065A CN 201810088223 A CN201810088223 A CN 201810088223A CN 108561065 A CN108561065 A CN 108561065A
- Authority
- CN
- China
- Prior art keywords
- ladder
- link block
- ladder bars
- end link
- rod component
- 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.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 claims description 32
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 241000282326 Felis catus Species 0.000 description 2
- 241001482311 Trionychidae Species 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- 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
- E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
- E06C1/383—Foldable ladders in which the longitudinal members are brought together on folding
-
- 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
-
- 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
- E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
- E06C1/39—Ladders having platforms; Ladders changeable into platforms
-
- 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
- E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
- E06C1/397—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders characterised by having wheels, rollers, or runners
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/02—Extending means
- E06C7/04—Hand-operated extending means carried by the ladder
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
The present invention relates to a kind of Household ladders, the parallel four deformations link assembly to link together including one or two top, it is respectively connected with ladder bars on the horizontal both ends axis pin of each parallelogram connection-rod component, it is provided with oppositely oriented vertical screw thread in two adjacent ladder bars of correspondence of each parallelogram connection-rod component, vertical lead screw is installed on vertical screw thread, the bottom of parallelogram connection-rod component is provided with traveling wheel mechanism, the traveling wheel mechanism includes two universal wheels for carrying brake gear, one of universal wheel is set on the ladder bars guide sleeve of position most on the lower, another universal wheel, which is set to, to be oriented to the ladder bars guide sleeve in the ladder bars being slidably matched.The present invention provides a kind of conveniently moving the Household ladder of height is adjusted by stretching.
Description
Technical field
The present invention relates to a kind of Household ladders.
Background technology
Ladder is the requirement in people's daily life, and Chinese patent CN105927138B discloses a kind of " extension ladder
Son ", which includes the parallelogram connection-rod component of one group of vertically-arranged, the horizontal both ends of each parallelogram connection-rod component
Axis pin all make the lengthening processing of forward direction, all sets wears cross section as rectangular ladder bars on the part of lengthening, ladder bars
Left and right ends position is symmetrically respectively machined with sliding slot penetrating before and after one section.Middle part in about one group two ladder bars on the lower
Position is machined with the opposite vertical screw hole of the hand of spiral, and vertical screw hole internal thread is connected with matching vertical lead screw, vertical silk
The intermediate position of bar is equipped with handwheel.This group of ladder bars unexpectedly other ladder bars all intermediate position be machined with vertical perforation in order to
Vertical lead screw is accommodated when ladder recycles.
In use, oppositely oriented due to two vertical screw holes, rotation handwheel can be obtained separate while ladder bars up and down
Or it is close simultaneously, and the design feature of parallelogram connection-rod component can be multiple in each connecting rod assembly by this movement synchronization
System, this telescopic variation process is also horizontally slip process of the axis pin in sliding slot, and the height of ladder entire in this way will be simultaneously
The acceleration of equimultiple elongates or shortens, to make ladder obtain elongation use state and cripetura recycling state.But it is existing at present
This extension ladder having has the following problems：1, only there are one parallelogram connection-rod components for the extension ladder, in use, necessary
Be placed against the wall and set, there is certain limitation to use environment, if there is no wall in use environment or it is other by vertical position if can not make
With；2, during being climb along ladder bars using process i.e. personnel, the position of ladder bars is not fixed, and ladder bars are in level
There is degree of freedom, this can increase the danger during cat ladder on direction；3, entire ladder needs whole carry that could move, and moves
Dynamic is not very convenient.
Invention content
The purpose of the present invention is to provide a kind of conveniently moving the Household ladder of height is adjusted by stretching.
In order to solve the above technical problems, the technical solution in the present invention is as follows：
A kind of Household ladder, including one or two top link together it is parallel four deformation link assembly, each parallel four side
Ladder bars, two adjacent ladder bars of correspondence of each parallelogram connection-rod component are respectively connected on the horizontal both ends axis pin of shape link assembly
On be provided with oppositely oriented vertical screw thread, vertical lead screw, the level of each parallelogram connection-rod are installed on vertical screw thread
Both ends axis pin is referred to as the first axis pin and the second axis pin, and one end of ladder bars is hinged and connected with the first axis pin, is set on the second axis pin
It is equipped with for being oriented to the ladder bars guide sleeve being slidably matched, the bottom of parallelogram connection-rod component with the other end of corresponding ladder bars
It is provided with traveling wheel mechanism, the traveling wheel mechanism includes two universal wheels for carrying brake gear, and one of universal wheel is set
It is placed on the ladder bars guide sleeve of position most on the lower, another universal wheel is set to be oriented to the ladder bars guide sleeve and be slidably matched
In ladder bars.
Household ladder includes the parallelogram connection-rod component that two tops link together, and each parallelogram connects
Ladder bars are respectively connected on the horizontal both ends axis pin of bar assembly, in two adjacent ladder bars of correspondence of each group parallelogram connection-rod component
It is provided with oppositely oriented vertical screw thread, vertical lead screw is installed on vertical screw thread, is provided on one of them vertical lead screw
Handwheel is both provided with driving wheel on two vertical lead screws, and extension ladder further includes that Synchronous Transmission is connected between two driving wheels
Transmission belt, transmission belt are the annular driving band that two ends are formed by connecting by releasable connection structure.
Two driving wheels it is highly consistent.
The releasable connection structure is the plug-in type releasable connection structure along the grafting of belt width direction.
The plug-in type releasable connection structure includes being set to the head end link block of transmission belt head end and being set to transmission belt
The tail end link block of tail end, head end link block connect with tail end link block complementation after width and the transmission belt bandwidth one
Cause, be provided with head end link block bolt and head end link block jack on head end link block, be provided on tail end link block for
Head end link block bolt, head end link block jack are to slotting tail end link block jack and tail end link block bolt.
Beneficial effects of the present invention are：The brake gear of universal wheel is unclamped, operating personnel can be easily by soft-shelled turtle ladder
It is moved to any position, when needing to adjust the height of Household ladder, locks one of universal wheel, operating personnel's rotation is vertical
Lead screw, Household ladder carries out height adjustment, and due to the guiding sliding relation of ladder bars and ladder bars guide sleeve, corresponding universal wheel can be with
The height adjustment for adapting to ladder by moving on the ground locks another universal wheel after ladder completes height adjustment
Normal ladder is can be used as to use.
Description of the drawings
Fig. 1 is the structural schematic diagram of extension ladder in the present invention；
Fig. 2 is status diagram of the extension ladder when adjusting height in the present invention；
Fig. 3 is the structural schematic diagram of single parallelogram connection-rod component in Fig. 1；
Fig. 4 is the cooperation schematic diagram of transmission belt and two vertical lead screws in the present invention；
Fig. 5 is the structural schematic diagram removed in Fig. 4 after transmission belt；
Fig. 6 is the structural schematic diagram of transmission belt in 4；
Fig. 7 is the status diagram after the releasable connection structural demolition of transmission belt in Fig. 6.
Specific implementation mode
A kind of embodiment of Household ladder：Including top connecting plate 1, top connecting plate has each side been hinged and connected
The parallelogram connection-rod component of one group of vertically-arranged, the parallelogram connection-rod component that position keeps left are known as left parallelogram connection-rod
Component 2, the parallelogram connection-rod component that position is kept right are known as right parallelogram connection-rod component 3.Each parallelogram connection-rod
It is respectively connected with ladder bars 5 on the horizontal both ends axis pin of component, sells the horizontal both ends of parallelogram connection-rod component in the present embodiment
Axis is referred to as the first axis pin 4 and the second axis pin 6, in the present embodiment in order to avoid during operating personnel's cat ladder ladder bars occur not
Stable problem, the front end of ladder bars 5 are hinged and connected with the first axis pin 4, and ladder bars guide sleeve 7, ladder bars are provided on the second axis pin 6
5 rear end is slidably matched with the guiding of ladder bars guide sleeve 7, and the rear end end of ladder bars is additionally provided with for matching with the limit of ladder bars guide sleeve
It closes to limit the gear of ladder bars orward movement limit along 8.
It is provided with oppositely oriented vertical screw thread 11 in two adjacent ladder bars of correspondence of each group parallelogram connection-rod component,
It is installed with vertical lead screw on vertical screw thread 11, the vertical lead screw in the present embodiment on left parallelogram connection-rod component is referred to as left
Vertical lead screw 14, the vertical lead screw on right parallelogram connection-rod component be referred to as right vertical lead screw 9, wherein being set on left vertically lead screw
Be equipped with handwheel 15, driving wheel 10 be installed on two vertical lead screws 15, the driving wheel on two vertical lead screws it is highly consistent,
Extension ladder further includes the transmission belt 16 that Synchronous Transmission is connected between two driving wheels, and transmission belt is tooth form synchronous belt, transmission
Band is the annular driving band that two ends are formed by connecting by releasable connection structure 17.Releasable connection structure is along belt width side
To the plug-in type releasable connection structure of grafting, plug-in type releasable connection structure includes being set to the head end link block of transmission belt head end
18 and be set to the tail end link block 21 of transmission belt tail end, head end link block 18 connect with 21 complementation of tail end link block after width
It is consistent with the bandwidth of transmission belt 16, head end link block bolt 20 and head end link block jack 19 are provided on head end link block 18,
Be provided on tail end link block 21 for head end link block bolt, head end link block jack to slotting tail end link block jack 23
With tail end link block bolt 22.In head end link block bolt, head end link block jack and tail end link block jack, tail end link block
After bolt is to inserting, transmission belt becomes a stable annular driving band, when head end link block bolt, head end link block jack and tail
After holding link block jack, the separation of tail end link block bolt, head end link block and the tail end link block of transmission belt disconnect, and are driven in this way
Band can be removed from two driving wheels, not influence the normal use of extension ladder.In the present embodiment, top connecting plate with it is left,
The top ladder bars of right parallelogram connection-rod component are hinged and connected.
The bottom of each parallelogram connection-rod component is respectively provided with there are two the universal wheel 12 for carrying brake gear 13, with brake
The universal wheel of vehicle device belongs to the prior art, is not described in detail to its structure at this.To avoid influencing the normal of extension ladder
Height regulating function, one of universal wheel are set in the ladder bars that lowermost position is set, another universal wheel is set to what lowermost position was set
On ladder bars guide sleeve.
Ladder needs adjustment height before use, as shown in Fig. 2, two groups of parallelogram connection-rod component adjustment are set vertically
Parallel orientation links together the releasable connection structure of transmission belt, and transmission belt is wound on two driving wheels, one of them is universal
Wheel is locked, and operating personnel rotate handwheel, and two vertical lead screws rotate synchronously to drive two groups of parallelogram connection-rod components same
Step lifting will pin if two groups of parallelogram connection-rod component liftings are asynchronous.After height adjusts, by transmission belt
It removes, extension ladder is put into splayed structure as shown in Figure 1, lock another universal wheel, you can as normally climbing
Ladder uses, and when needing moving telescopic ladder, unclamps two universal wheels of each group parallelogram bottom, so that it may easily will
Extension ladder is moved to any position.
In other embodiments of the invention：Releasable connection structure may not be plug-in type releasable connection structure, such as
Say that releasable connection structure is bolt releasable connection structure；Toothed belt can also be by other transmission belt generations such as trapezoid belt, transmission chain band
It replaces；It can also be different step between left parallelogram connection-rod component, right parallelogram connection-rod component and carry out lift adjustment, at this time
It is not required to setting driving wheel and transmission belt, it, can will be left parallel when carrying out height to left and right parallelogram connection-rod component and adjusting
Horizontal attitude is set in quadrilateral connecting rod component, the overturning of right parallelogram connection-rod component, then carries out height adjustment again；This certain ladder
Son can also only there are one parallelogram connection-rod components to constitute, and ladder at this time needs the use that leans against a wall, top connection
Plate can not also be set, and the top ladder bars of left and right parallelogram connection-rod component are directly hinged and connected together at this time.
Claims (5)
1. a kind of Household ladder, it is characterised in that：The parallel four deformations connection rod set to link together including one or two top
Part is respectively connected with ladder bars, pair of each parallelogram connection-rod component on the horizontal both ends axis pin of each parallelogram connection-rod component
It answers and is provided with oppositely oriented vertical screw thread in two adjacent ladder bars, be installed with vertical lead screw on vertical screw thread, each parallel four
The horizontal both ends axis pin of side shape connecting rod is referred to as the first axis pin and the second axis pin, and one end of ladder bars is hinged phase with the first axis pin
Even, it is provided on the second axis pin for being oriented to the ladder bars guide sleeve being slidably matched, parallel four side with the other end of corresponding ladder bars
The bottom of shape link assembly is provided with traveling wheel mechanism, and the traveling wheel mechanism includes two universal wheels for carrying brake gear,
One of universal wheel is set on the ladder bars guide sleeve of position most on the lower, another universal wheel is set to be oriented to the ladder bars
Set is oriented in the ladder bars being slidably matched.
2. Household ladder according to claim 1, it is characterised in that：Household ladder includes that two tops link together
The parallelogram connection-rod component is respectively connected with ladder bars, each group on the horizontal both ends axis pin of each parallelogram connection-rod component
It is provided with oppositely oriented vertical screw thread in two adjacent ladder bars of correspondence of parallelogram connection-rod component, is revolved on vertical screw thread
Equipped with vertical lead screw, it is provided with handwheel on one of them vertical lead screw, driving wheel, extension ladder are both provided on two vertical lead screws
Son further includes the transmission belt that Synchronous Transmission is connected between two driving wheels, and transmission belt is that two ends are connected by releasable connection structure
Made of annular driving band.
3. Household ladder according to claim 2, it is characterised in that：Two driving wheels it is highly consistent.
4. Household ladder according to claim 2 or 3, it is characterised in that：The releasable connection structure is along transmission bandwidth
Spend the plug-in type releasable connection structure of direction grafting.
5. Household ladder according to claim 4, it is characterised in that：The plug-in type releasable connection structure includes being set to
The head end link block of transmission belt head end and the tail end link block for being set to transmission belt tail end, head end link block and tail end link block are mutual
The width mended after connection is consistent with the bandwidth of the transmission belt, and head end link block bolt is provided on head end link block and head end connects
Block jack is connect, is provided on tail end link block for being connect to slotting tail end with head end link block bolt, head end link block jack
Block jack and tail end link block bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810088223.6A CN108561065B (en) | 2018-01-30 | 2018-01-30 | Household ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810088223.6A CN108561065B (en) | 2018-01-30 | 2018-01-30 | Household ladder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108561065A true CN108561065A (en) | 2018-09-21 |
| CN108561065B CN108561065B (en) | 2020-03-27 |
Family
ID=63530000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810088223.6A Active CN108561065B (en) | 2018-01-30 | 2018-01-30 | Household ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108561065B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US167178A (en) * | 1875-08-31 | Improvement in fire-escapes | ||
| US2567302A (en) * | 1947-08-18 | 1951-09-11 | Sip Karel | Foldable ladder |
| JPS5214602Y2 (en) * | 1972-12-08 | 1977-04-01 | ||
| CN202627950U (en) * | 2012-07-03 | 2012-12-26 | 张心愿 | Movable ladder for gardens |
| CN105927138A (en) * | 2016-06-18 | 2016-09-07 | 陈烁 | Retractable ladder |
-
2018
- 2018-01-30 CN CN201810088223.6A patent/CN108561065B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US167178A (en) * | 1875-08-31 | Improvement in fire-escapes | ||
| US2567302A (en) * | 1947-08-18 | 1951-09-11 | Sip Karel | Foldable ladder |
| JPS5214602Y2 (en) * | 1972-12-08 | 1977-04-01 | ||
| CN202627950U (en) * | 2012-07-03 | 2012-12-26 | 张心愿 | Movable ladder for gardens |
| CN105927138A (en) * | 2016-06-18 | 2016-09-07 | 陈烁 | Retractable ladder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108561065B (en) | 2020-03-27 |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: No.4, Zhenxing North Road, Tianhe Town, Gaogang District, Taizhou City, Jiangsu Province Patentee after: Zhang Fengju Address before: 450003 Dongming Road, Jinshui District, Zhengzhou, Henan 4 Patentee before: Zhang Fengju |
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| CP02 | Change in the address of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210119 Address after: 463600 Agricultural Machinery Industrial Park, Weiwei 1st Road, Zhengyang County, Zhumadian City, Henan Province Patentee after: ZHENGYANG CHENGGONG MACHINERY Co.,Ltd. Address before: No.4, Zhenxing North Road, Tianhe Town, Gaogang District, Taizhou City, Jiangsu Province Patentee before: Zhang Fengju |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240104 Address after: 463000 industrial cluster of Zhengyang County, Zhumadian City, Henan Province Patentee after: Zhengyang Xintiandi Grass Industry Co.,Ltd. Address before: 463600 Agricultural Machinery Industrial Park, Weiwei 1st Road, Zhengyang County, Zhumadian City, Henan Province Patentee before: ZHENGYANG CHENGGONG MACHINERY Co.,Ltd. |
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| TR01 | Transfer of patent right |