CN107299820A - A kind of structure improved ladder - Google Patents
A kind of structure improved ladder Download PDFInfo
- Publication number
- CN107299820A CN107299820A CN201710679494.4A CN201710679494A CN107299820A CN 107299820 A CN107299820 A CN 107299820A CN 201710679494 A CN201710679494 A CN 201710679494A CN 107299820 A CN107299820 A CN 107299820A
- Authority
- CN
- China
- Prior art keywords
- cat ladder
- ladder body
- rod
- fixed
- push
- 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
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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
- E06C1/397—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
- E06C7/08—Special construction of longitudinal members, or rungs or other treads
- E06C7/081—Rungs or other treads comprising anti-slip features
-
- 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
-
- 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
- E06C7/46—Non-skid equipment
Abstract
The invention provides a kind of structure improved ladder.It solves existing cat ladder movement inconvenience, and can not effectively position cat ladder body when using, the technical problem such as inconvenient operation.This structure improved ladder, including cat ladder body, cat ladder body lower part is provided with roller by attachment structure, and attachment structure includes installing plate, location-plate, guide rod, guide pin bushing and spring, installing plate is fixed on cat ladder body lower part, guide rod is fixed on a mounting board vertically, and guide pin bushing is slidably arranged on guide rod, and spring is located on guide rod, spring upper end is connected with installing plate, lower spring end is connected with guide pin bushing, and location-plate is fixed on guide pin bushing, and roller is fixed on location-plate；Location structure is additionally provided with the cat ladder body.The present invention has the advantages that easy to operate.
Description
The application is application number 2016107692197, the applying date 2016 year 08 month 30, denomination of invention " one kind improvement knot
The divisional application of the ladder of structure ".
Technical field
The present invention relates to a kind of structure improved ladder.
Background technology
Cat ladder, the gradient is steeper, and the stair of both hands staircase are needed when above and below people.Typically made by angle steel, welded tube, iron chains or rope
Ladder straight up and down, be widely used in a variety of industries, with the fast development of economic technology, cat ladder is increasingly towards light
Just, service life length, firm and safe direction are developed.
Through retrieval, such as Chinese patent literature discloses a kind of cat ladder【Application number：201520975951.0；Publication number：CN
205153992U】.This cat ladder, it is characterised in that including：Longitudinal rod；Multiple transverse bars, are arranged along the longitudinal rod, described
Transverse bar has the operating position and the stowed position consistent with the longitudinal rod bearing of trend of the vertical longitudinal rod；Positioning
Lock, for the transverse bar to be locked in into the stowed position.
Although the cat ladder disclosed in the patent is used simply, cat ladder movement inconvenience, and can not be by cat ladder when using
Body is effectively positioned, inconvenient operation, therefore, and it is necessary to design a kind of structure improved ladder.
The content of the invention
The purpose of the present invention is there is above mentioned problem for existing technology, it is proposed that a kind of structure improved ladder, should
The characteristics of ladder has easy to operate.
The purpose of the present invention can be realized by following technical proposal：Structure improved ladder, including cat ladder body, it is special
Levy and be, the cat ladder body lower part is provided with roller by attachment structure, attachment structure include installing plate, location-plate, guide rod,
Guide pin bushing and spring, installing plate are fixed on cat ladder body lower part, and guide rod is fixed on a mounting board vertically, and guide pin bushing is slidably arranged in guide rod
On, spring is located on guide rod, and spring upper end is connected with installing plate, and lower spring end is connected with guide pin bushing, and location-plate is fixed on guide pin bushing
On, roller is fixed on location-plate；Location structure is additionally provided with the cat ladder body.
The operation principle of the present invention is as follows：Supermarket staff is needed to arrange goods to above shelf, and cat ladder body is led to
The roller for crossing bottom is pushed under shelf, is then positioned cat ladder body by the effect of location structure, proceed with one's work personnel
Cat ladder body can be climbed up and arrange shelf, when being arranged when needing to move to another place, the effect of location structure is released, then pass through roller
Mobile cat ladder body changes to different places, easy to operate.
As the first situation, the location structure includes motor, the first connecting rope, the first weight and the first auxiliary
Wheel, motor is fixed on cat ladder body lower part, and the output shaft of motor is horizontally disposed with, the output shaft end of motor and the first connecting rope one
End is connected, and the first connecting rope other end and the first weight are connected, and the first auxiliary wheel is arranged on the first weight.
Using above structure, when needing to use cat ladder body, the first connection is made by the output shaft rotation of controlled motor
Rope is moved up, and the first connecting rope drives the first weight and the first auxiliary wheel to move upwardly off ground, by the first weight
Action of Gravity Field in cat ladder body, live cat ladder body contacts terrestrial positioning；When cat ladder body needs to move, controlled motor is defeated
Shaft, which is rotated, moves down the first connecting rope, the first auxiliary wheel under the first weight is touched ground, cat ladder body is in bullet
Popped into position in the presence of spring force, then the first weight is moved together in the presence of the first auxiliary wheel with cat ladder body.
As second of situation, the location structure includes oscillating rod, the second weight, push-rod electric machine, the second connecting rope
With the second auxiliary wheel, push-rod electric machine fix on a mounting board, the push rod of push-rod electric machine straight up, the push rod end of push-rod electric machine
It is connected with second connecting rope one end, the second connecting rope other end is connected with oscillating rod one end, with this body phase of cat ladder in the middle part of oscillating rod
It is hinged, the oscillating rod other end and the second weight are hinged, and the second auxiliary wheel is arranged on the second weight.
Using above structure, when needing to use cat ladder body, the can be driven by controlling the push rod of push-rod electric machine to shorten
Two connecting ropes are moved down, and the second connecting rope drives oscillating rod one end to move down, and moves up the oscillating rod other end, make the
Two weights and the second auxiliary wheel move upwardly off ground, by the Action of Gravity Field of the second weight in cat ladder body, make cat ladder
Body contacts terrestrial positioning is lived；When cat ladder body needs to move, the push rod elongation of control push-rod electric machine makes the oscillating rod other end
Moved down under the Action of Gravity Field of the second weight and the second auxiliary wheel, the second auxiliary wheel under the second weight is touched ground
Face, cat ladder body is popped into position in the presence of spring force, and then the second weight is in the presence of the second auxiliary wheel and climbs
Terraced body is moved together.
As the third situation, the location structure include sucker, vavuum pump, blast pipe, air inlet pipe, the first magnetic valve and
Second magnetic valve, sucker is fixed on cat ladder body, the air inlet of sucker upward, the gas outlet of sucker and blast pipe one end phase
Even, the blast pipe other end is connected with vavuum pump, and the first magnetic valve is arranged in blast pipe, the air inlet of air inlet pipe one end and sucker
It is connected, the air inlet pipe other end can be connected with the external world, and the second magnetic valve is arranged in air inlet pipe.
Using above structure, when needing to use cat ladder body, cat ladder body is pressed, makes the sucker and ground on cat ladder body
Face is contacted, and opens the first magnetic valve in blast pipe, then controls vacuum pump work the air in sucker is entered by gas outlet
Enter in blast pipe, enter back into vavuum pump, after in sucker without air, close in the first magnetic valve, sucker due to no air
And ground is tightly held, fix cat ladder body on the ground；When cat ladder body needs to move, second in air inlet pipe is opened
Magnetic valve, then outside air enters air inlet pipe, then enters sucker by the air inlet on sucker, air inlet in sucker is existed
In the presence of spring, cat ladder body departs from ground, and pops into position, and then can move cat ladder body.
As the first situation, operation button one is fixed with the cat ladder body, motor passes through circuit and operation button
One is connected.
Using above structure, worked by operation button one come controlled motor, intelligence degree is high.
As second of situation, operation button two is fixed with the cat ladder body, push-rod electric machine passes through circuit and operation
Button two is connected.
Using above structure, push-rod electric machine is controlled to work by operation button two, intelligence degree is high.
As the third situation, operation button three, vavuum pump, the first magnetic valve and second are fixed with the cat ladder body
Magnetic valve is connected by circuit with operation button three.
Using above structure, vavuum pump, the first magnetic valve, the second electromagnetic valve work, intelligence are controlled by operation button three
Degree can be changed high.
Some antiskid plates are provided with the cat ladder body.
Using above structure, make one to step down in by the effect of antiskid plate and avoid sliding above and produce injury, anti-skidding effect
It is good.
The quantity of the roller is four.
Using above structure, cat ladder body is moved by four rolling, stability is good.
The roller is universal wheel.
Using above structure, cat ladder body is moved by universal wheel to be moved from any angle, conveniently moving.
As the first situation, the material of the cat ladder body is stainless steel.
Using above material, it is made firmly for the cat ladder body of stainless steel by using material and service life is long.
As second of situation, the material of the cat ladder body is plastics.
Using above material, moved it by using material for the cat ladder body of plastics light.
The cat ladder body lower part is provided with tread plate.
Using above structure, it is avoided to skid and produce when using cat ladder body by the tread plate of cat ladder body lower part
Danger, safety effect is good.
Compared with prior art, this structure improved ladder has advantages below：
1st, cat ladder body can be pushed under shelf by roller in the present invention, and the output shaft rotation of controlled motor makes the first connecting rope
Move up, the first connecting rope drives the first weight and the first auxiliary wheel to move upwardly off ground, by the first weight
Action of Gravity Field lives cat ladder body contacts terrestrial positioning in cat ladder body；Controlled motor output shaft rotation make the first connecting rope to
Lower movement, makes the first auxiliary wheel under the first weight touch ground, cat ladder body is popped into position in the presence of spring force,
Cat ladder body is moved by roller and changes to different places, it is easy to operate.
2nd, make one to step down in by the effect of antiskid plate and avoid sliding above and produce injury, it is anti-skidding to make good use of.
3rd, cat ladder body is moved by universal wheel to be moved from any angle, conveniently moving.
Brief description of the drawings
Fig. 1 is the planar structure schematic diagram of the first scheme of the invention.
Fig. 2 is the planar structure schematic diagram of second scheme of the present invention.
Fig. 3 is the planar structure schematic diagram of the third scheme of the invention.
In figure, 1, cat ladder body；2nd, antiskid plate；3rd, operation button one；4th, installing plate；5th, guide rod；6th, spring；7th, guide pin bushing；
8th, location-plate；9th, tread plate；10th, roller；11st, the first weight；12nd, the first auxiliary wheel；13rd, the first connecting rope；14th, motor；
15th, the second auxiliary wheel；16th, the second weight；17th, push-rod electric machine；18th, the second connecting rope；19th, oscillating rod；21st, sucker；21a、
Gas outlet；21b, air inlet；23rd, air inlet pipe；24th, the second magnetic valve；25th, the first magnetic valve；26th, blast pipe；27th, vavuum pump；
28th, operation button two；29th, operation button three.
Embodiment
The following is specific embodiment of the invention and with reference to accompanying drawing, technical scheme is further described,
But the present invention is not limited to these embodiments.
As shown in figure 1, this structure improved ladder, including cat ladder body 1, the bottom of cat ladder body 1 is set by attachment structure
Roller 10 is equipped with, attachment structure includes installing plate 4, location-plate 8, guide rod 5, guide pin bushing 7 and spring 6, and the material of installing plate 4 is stainless
Steel, the material of location-plate 8 is stainless steel, and the material of guide rod 5 is stainless steel, and installing plate 4 is fixed on the bottom of cat ladder body 1, is installed
The mode that plate 4 is bolted is fixed on the bottom of cat ladder body 1, and guide rod 5 is fixed on installing plate 4 vertically, and guide rod 5 passes through spiral shell
Tether the mode connect to be fixed on vertically on installing plate 4, guide pin bushing 7 is slidably arranged on guide rod 5, spring 6 is located on guide rod 5, bullet
The upper end of spring 6 is connected with installing plate 4, and the mode that the upper end of spring 6 is bolted with installing plate 4 is connected, the lower end of spring 6 and guide pin bushing
7 are connected, and the mode that the lower end of spring 6 is bolted with guide pin bushing 7 is connected, and location-plate 8 is fixed on guide pin bushing 7, and location-plate 8 passes through
Bolted mode is fixed on guide pin bushing 7, and roller 10 is fixed on location-plate 8, and the mode that roller 10 is bolted is consolidated
It is scheduled on location-plate 8；Location structure is additionally provided with cat ladder body 1.
As shown in figure 1, location structure includes motor 14, the first connecting rope 13, the first weight 11 and the first auxiliary wheel 12,
Motor 14 is fixed on the bottom of cat ladder body 1, and the mode that motor 14 is bolted is fixed on the bottom of cat ladder body 1, motor 14
Output shaft be horizontally disposed with, the output shaft end of motor 14 and the one end of the first connecting rope 13 are connected, the other end of the first connecting rope 13
It is connected with the first weight 11, the first auxiliary wheel 12 is arranged on the first weight 11, using above structure, is climbed when needing to use
During terraced body 1, the first connecting rope 13 is moved up by the output shaft rotation of controlled motor 14, the first connecting rope 13 drives the
One weight 11 and the first auxiliary wheel 12 move upwardly off ground, then by the first weight 11 and the weight of the first auxiliary wheel 12
Power acts on cat ladder body 1, cat ladder body 1 is contacted terrestrial positioning and lives；When cat ladder body 1 needs to move, controlled motor 14
Output shaft rotation moves down the first connecting rope 13, the first auxiliary wheel 12 under the first weight 11 is touched ground, cat ladder
Body 1 is popped into position in the presence of the elastic force of spring 6, and then the first weight 11 is in the presence of the first auxiliary wheel 12 and cat ladder
Body 1 is moved together；The first embodiment.
As shown in Fig. 2 location structure includes oscillating rod 19, the second weight 16, push-rod electric machine 17, the and of the second connecting rope 18
Second auxiliary wheel 15, push-rod electric machine 17 is fixed on installing plate 4, and the mode that push-rod electric machine 17 is bolted is fixed on installation
On plate 4, straight up, the push rod end of push-rod electric machine 17 is connected the push rod of push-rod electric machine 17 with the one end of the second connecting rope 18, the
The other end of two connecting rope 18 is connected with the one end of oscillating rod 19, and the middle part of oscillating rod 19 and cat ladder body 1 are hinged, and oscillating rod 19 is another
End and the second weight 16 are hinged, and the second auxiliary wheel 15 is arranged on the second weight 16, using above structure, when needs make
During with cat ladder body 1, by controlling the push rod of push-rod electric machine 17 to shorten the second connecting rope 18 can be driven to move down, the second connection
Rope 18 drives the one end of oscillating rod 19 to move down, and moves up the other end of oscillating rod 19, makes the second weight 16 and second auxiliary
Wheel 15 is helped to move upwardly off ground, then by the Action of Gravity Field of the second weight 16 and the second auxiliary wheel 15 in cat ladder body 1,
Make cat ladder body 1 contact terrestrial positioning to live；When cat ladder body 1 needs to move, the push rod elongation of control push-rod electric machine 17 makes pendulum
The other end of lever 19 is moved down under the Action of Gravity Field of the second weight 16 and the second auxiliary wheel 15, is made under the second weight 16
The second auxiliary wheel 15 touching ground, cat ladder body 1 pops into position in the presence of the elastic force of spring 6, then the second weight 16
Moved together with cat ladder body 1 in the presence of the second auxiliary wheel 15；Second of embodiment.
As shown in figure 3, location structure includes sucker 21, vavuum pump 27, blast pipe 26, air inlet pipe 23, the first magnetic valve 25
With the second magnetic valve 24, sucker 21 is fixed on cat ladder body 1, and the mode that sucker 21 is bolted is fixed on cat ladder body
On 1, upward, gas outlet 21a's air inlet 21b of sucker 21 of sucker 21 is connected with the one end of blast pipe 26, the other end of blast pipe 26
It is connected with vavuum pump 27, the first magnetic valve 25 is arranged in blast pipe 26, the air inlet 21b phases of the one end of air inlet pipe 23 and sucker 21
Connection, the other end of air inlet pipe 23 can be connected with the external world, and the second magnetic valve 24 is arranged in air inlet pipe 23, using above structure,
When needing to use cat ladder body 1, the sucker 21 on cat ladder body 1 is placed in ground, the first electromagnetism in blast pipe 26 is opened
Valve 25, then controlling vavuum pump 27 to work makes the air in sucker 21 enter by gas outlet 21a in blast pipe 26, enters back into true
In empty pump 27, after in sucker 21 without air, close in the first magnetic valve 25, sucker 21 and tightly hold ground due to no air
Face, fixes cat ladder body 1 on the ground；When cat ladder body 1 needs to move, the second magnetic valve in air inlet pipe 23 is opened
24, then outside air enters air inlet pipe 23, then enters sucker 21 by the air inlet 21b on sucker 21, makes to enter in sucker 21
Enter air and unclamp ground, cat ladder body 1 is popped into position in the presence of the elastic force of spring 6, then can move cat ladder body 1；
The third embodiment.
As shown in figure 1, operation button 1 is fixed with cat ladder body 1, the mode being bolted on cat ladder body 1
Operation button 1 is fixed with, motor 14 is connected by circuit with operation button 1, using above structure, passes through operation button one
3, which carry out controlled motor 14, works, and intelligence degree is high；The first embodiment.
As shown in Fig. 2, the side being bolted on operation button 2 28, cat ladder body 1 is fixed with cat ladder body 1
Formula is fixed with operation button 2 28, and push-rod electric machine 17 is connected by circuit with operation button 2 28, using above structure, passes through behaviour
Make button 2 28 to control push-rod electric machine 17 to work, intelligence degree is high；Second of embodiment.
As shown in figure 3, operation button 3 29 is fixed with cat ladder body 1, the mode being bolted on cat ladder body 1
Be fixed with operation button 3 29, vavuum pump 27, the first magnetic valve 25 and the second magnetic valve 24 by circuit with operation button three
29 are connected, and using above structure, vavuum pump 27, the first magnetic valve 25, the second magnetic valve 24 are controlled by operation button 3 29
Work, intelligence degree is high；The third embodiment.
As shown in figure 1, being provided with some antiskid plates 2 on cat ladder body 1, in the present embodiment, the quantity of antiskid plate 2 is 10
Block, using above structure, makes one to step down in and avoids sliding above and produce injury by the effect of antiskid plate 2, anti-skidding to make good use of.
As shown in figure 1, the quantity of roller 10 is four, using above structure, cat ladder sheet is moved by four rolling 10
Body 1, stability is good.
Roller 10 be universal wheel, using above structure, moved by universal wheel cat ladder body 1 can from any angle come
It is mobile, conveniently moving.
The material of cat ladder body 1 is stainless steel, using above material, by using the cat ladder body 1 that material is stainless steel
Make it firmly and service life is long；It is of course also possible to use this kind of embodiment, the material of cat ladder body 1 is plastics, use with
Upper material, is moved it light by using material for the cat ladder body 1 of plastics.
As shown in figure 1, the bottom of cat ladder body 1 is provided with tread plate 9, using above structure, pass through the bottom of cat ladder body 1
Tread plate 9 avoids it from skidding and produces danger when using cat ladder body 1, safety effect is good.
The operation principle of the cat ladder of the present invention is as follows：Supermarket staff needs to arrange goods to above shelf, by cat ladder
Body 1 is pushed under shelf by the roller 10 of bottom, is then made by the output shaft rotation of the controlled motor 14 of operation button 1
First connecting rope 13 is moved up, and the first connecting rope 13 drives the first weight 11 and the first auxiliary wheel 12 to move upwardly off ground
Face, then by the Action of Gravity Field of the first weight 11 and the first auxiliary wheel 12 in cat ladder body 1, then by weight transfer to installation
Plate 4, makes installing plate 4 overcome the elastic force of spring 6 to be moved down by guide rod 5 through guide pin bushing 7 and location-plate 8, connects cat ladder body 1
Tread surface is positioned, and the personnel of proceeding with one's work, which can step on antiskid plate and climb up cat ladder body 1, arranges shelf, whole when needing to move to another place
During reason, the first connecting rope 13 is moved down by the output shaft rotation of one 3 controlled motor of operation button 14, makes the first weight 11
Under the first auxiliary wheel 12 touching ground, cat ladder body 1 pops into position in the presence of the elastic force of spring 6, then passes through roller 10
Mobile cat ladder body 1 changes to different places, easy to operate.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology neck belonging to of the invention
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Claims (6)
1. structure improved ladder, including cat ladder body, it is characterised in that the cat ladder body lower part is set by attachment structure
There is roller, attachment structure includes installing plate, location-plate, guide rod, guide pin bushing and spring, and installing plate is fixed on cat ladder body lower part, led
Bar is fixed on a mounting board vertically, and guide pin bushing is slidably arranged on guide rod, and spring is located on guide rod, spring upper end and installing plate phase
Even, lower spring end is connected with guide pin bushing, and location-plate is fixed on guide pin bushing, and roller is fixed on location-plate；On the cat ladder body also
It is provided with location structure；It is auxiliary that the location structure includes oscillating rod, the second weight, push-rod electric machine, the second connecting rope and second
Wheel is helped, push-rod electric machine is fixed on a mounting board, straight up, the push rod end of push-rod electric machine and second connects the push rod of push-rod electric machine
Splicing one end is connected, and the second connecting rope other end is connected with oscillating rod one end, is hinged in the middle part of oscillating rod with cat ladder body, swings
The bar other end and the second weight are hinged, and the second auxiliary wheel is arranged on the second weight；It is fixed with the cat ladder body
Operation button two, push-rod electric machine is connected by circuit with operation button two；Some antiskid plates are provided with the cat ladder body.
2. structure improved ladder according to claim 1, it is characterised in that the quantity of the roller is four.
3. structure improved ladder according to claim 2, it is characterised in that the roller is universal wheel.
4. structure improved ladder according to claim 1, it is characterised in that the material of the cat ladder body is stainless
Steel.
5. structure improved ladder according to claim 1, it is characterised in that the material of the cat ladder body is plastics.
6. structure improved ladder according to claim 1, it is characterised in that the cat ladder body lower part is provided with anti-skidding
Bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710679494.4A CN107299820B (en) | 2016-08-30 | 2016-08-30 | A kind of ladder |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610769219.7A CN106193990B (en) | 2016-08-30 | 2016-08-30 | A kind of structure improved ladder |
| CN201710679494.4A CN107299820B (en) | 2016-08-30 | 2016-08-30 | A kind of ladder |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610769219.7A Division CN106193990B (en) | 2016-08-30 | 2016-08-30 | A kind of structure improved ladder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107299820A true CN107299820A (en) | 2017-10-27 |
| CN107299820B CN107299820B (en) | 2018-11-30 |
Family
ID=58088780
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710679418.3A Active CN107299819B (en) | 2016-08-30 | 2016-08-30 | A kind of ladder |
| CN201710679385.2A Active CN107299818B (en) | 2016-08-30 | 2016-08-30 | A kind of structure improved ladder |
| CN201710679494.4A Active CN107299820B (en) | 2016-08-30 | 2016-08-30 | A kind of ladder |
| CN201710679383.3A Active CN107313712B (en) | 2016-08-30 | 2016-08-30 | A kind of structure improved ladder |
| CN201610769219.7A Expired - Fee Related CN106193990B (en) | 2016-08-30 | 2016-08-30 | A kind of structure improved ladder |
| CN201710679369.3A Active CN107514226B (en) | 2016-08-30 | 2016-08-30 | A kind of ladder |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710679418.3A Active CN107299819B (en) | 2016-08-30 | 2016-08-30 | A kind of ladder |
| CN201710679385.2A Active CN107299818B (en) | 2016-08-30 | 2016-08-30 | A kind of structure improved ladder |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710679383.3A Active CN107313712B (en) | 2016-08-30 | 2016-08-30 | A kind of structure improved ladder |
| CN201610769219.7A Expired - Fee Related CN106193990B (en) | 2016-08-30 | 2016-08-30 | A kind of structure improved ladder |
| CN201710679369.3A Active CN107514226B (en) | 2016-08-30 | 2016-08-30 | A kind of ladder |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107299819B (en) * | 2016-08-30 | 2018-11-30 | 绍兴柯桥富荣纺织有限公司 | A kind of ladder |
| CN107299817B (en) * | 2017-08-08 | 2019-01-04 | 安徽机电职业技术学院 | A kind of adjustable mobile construction ladder of width |
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| CN205153992U (en) * | 2015-11-30 | 2016-04-13 | 国网北京市电力公司 | Climbing ladder |
| CN107299819B (en) * | 2016-08-30 | 2018-11-30 | 绍兴柯桥富荣纺织有限公司 | A kind of ladder |
| CN206000443U (en) * | 2016-08-30 | 2017-03-08 | 金瑾 | A kind of structure improved ladder |
-
2016
- 2016-08-30 CN CN201710679418.3A patent/CN107299819B/en active Active
- 2016-08-30 CN CN201710679385.2A patent/CN107299818B/en active Active
- 2016-08-30 CN CN201710679494.4A patent/CN107299820B/en active Active
- 2016-08-30 CN CN201710679383.3A patent/CN107313712B/en active Active
- 2016-08-30 CN CN201610769219.7A patent/CN106193990B/en not_active Expired - Fee Related
- 2016-08-30 CN CN201710679369.3A patent/CN107514226B/en active Active
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| US4166516A (en) * | 1978-01-10 | 1979-09-04 | Equipment Company Of America | Adjustable caster |
| CN201843504U (en) * | 2010-04-15 | 2011-05-25 | 上海埃纳特商用设备有限公司 | Novel foldable ladder truck |
| KR20120015761A (en) * | 2010-08-13 | 2012-02-22 | 최윤성 | Wheel structure for ladder or working desk |
| CN204402338U (en) * | 2015-01-04 | 2015-06-17 | 江苏隆士达实业有限公司 | Be convenient to the sucker step ladder of movement |
| CN204457403U (en) * | 2015-02-10 | 2015-07-08 | 天津胜威塑料有限公司 | A kind of deadweight braking safe ladder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107299818B (en) | 2018-11-09 |
| CN107299820B (en) | 2018-11-30 |
| CN106193990A (en) | 2016-12-07 |
| CN106193990B (en) | 2017-12-19 |
| CN107514226B (en) | 2018-11-09 |
| CN107313712B (en) | 2019-06-04 |
| CN107299819B (en) | 2018-11-30 |
| CN107299818A (en) | 2017-10-27 |
| CN107299819A (en) | 2017-10-27 |
| CN107313712A (en) | 2017-11-03 |
| CN107514226A (en) | 2017-12-26 |
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