CN109025790A - A kind of constructions work is with can be used more convenient comfortable ladder - Google Patents
A kind of constructions work is with can be used more convenient comfortable ladder Download PDFInfo
- Publication number
- CN109025790A CN109025790A CN201810878052.7A CN201810878052A CN109025790A CN 109025790 A CN109025790 A CN 109025790A CN 201810878052 A CN201810878052 A CN 201810878052A CN 109025790 A CN109025790 A CN 109025790A
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- Prior art keywords
- ladder
- column
- longitudinally fixed
- cross bar
- support column
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- 238000010276 construction Methods 0.000 title claims abstract description 21
- 238000003780 insertion Methods 0.000 claims abstract description 11
- 230000037431 insertion Effects 0.000 claims abstract description 11
- 238000003466 welding Methods 0.000 claims abstract description 8
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 15
- 239000002245 particle Substances 0.000 claims description 9
- 238000009434 installation Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000001174 ascending effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 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
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/48—Ladder heads; Supports for heads of ladders for resting against objects
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
The present invention provides a kind of constructions work with more convenient comfortable ladder, including telescopic mast, caging bolt, support base and reset spring can be used；The upside welding of the bottom side limit cross bar is provided with telescopic mast；The telescopic mast insertion is installed on the inside of longitudinally fixed column；Caging bolt is provided on the lower end outer wall of the longitudinally fixed column, and telescopic mast is fixed on the inside of longitudinally fixed column by caging bolt limit；The longitudinally fixed column passes through upper lateral limit cross bar and is fixedly connected with support column, and longitudinally fixed column is welded in the through hole of upper lateral limit cross bar；The front end bolt for adjusting support column is fixedly installed inside the tube seat of support base support column.The constructions work is installed on the inside of longitudinally fixed column and can be applicable in the ladder of different in width treadle convenient for that can be stuck on the treadle of ladder by elastic stretching during installation with more convenient comfortable ladder can be used to be equipped with telescopic mast and be embedded in by reset spring.
Description
Technical field
It is more square with can be used that the present invention relates to finishing ladder auxiliary device technical fields more particularly to a kind of constructions work
Just comfortable ladder.
Background technique
Ladder is people's essential ascending tool in life and work, and general indoor decoration needs to carry out many sides
The operation in face, metope ground and ceiling require to carry out painting processing etc., some places are needed using vertical ladder, and some then needs
Double ladder is wanted, these ladders are simple operation of ascending a height, and are unable to place tool and improve user's work comfort.
Invention by the existing Patent No. 201711135449.9 of patent retrieval provides a kind of architecture indoor finishing use
Convenient for placing the comfortable step ladder of material, belong to building field, including support plate；The support plate is in a horizontal position and supports
Being connected by a hinge on the left of plate upper surface has ladder, and ladder is by equidistant affixed between the parallel side lever in front and back two and two side levers
Parallel cross bar is affixed to be formed；Pass through shaft respectively at side lever upper end lateral wall before and after the ladder and is connected with one piece of rotating plate；
Ladder of the invention goes to the right obliquity from vertical position, so that the rotating plate on the side lever of front and back goes to the level on the right side of ladder
On position, the support stick that then slide downward passes through is leaned on so that support stick support is on the supporting plate consequently facilitating ladder is firm
It is good；When rotating plate goes to inclined ladder right side horizontal position, stick is slidably supported in vertical direction, so that support stick is inserted in downside
Insertion tube in so that support stick stabilization support；Stop block is used to prevent the upper end of support stick to be detached from rotating plate.
There are a kind of Portable aluminium alloy ladder of the disclosure of the invention of Patent No. 201810183101.5, including upper ladder again
Leg, descending stair leg, the first turntable and the second turntable, the upper terraced leg upper end are equipped with the first turntable, and first turntable is equipped with the
One adjusting knob, the upper terraced leg lower end are equipped with the second turntable, and second turntable is equipped with the second adjusting knob, and described second
Descending stair leg is equipped on the downside of turntable, the descending stair leg bottom right side is provided with knob hole, and the knob hole is equipped with elastic knob, described
Descending stair leg bottom end is provided with elongated slot, and the elongated slot is equipped with supporting leg, and the supporting leg is equipped with multiple adjustings with elastic knobs fit
Tooth, the supporting leg bottom are equipped with pedestal, and product of the present invention, of simple structure and strong practicability is highly-safe, and effect is good, conducive to pushing away
Extensively.
Based on above-mentioned, the inventors discovered that, the existing finishing device that ladder is that setting auxiliary uses cannot be effective
The existing ladder of change usage mode, to keep ladder use more comfortable, using effect is more preferable；Existing vertical ladder structure
Upper end is directly born against on wall when in use, and it is extremely inconvenient that staff then stands when stepping on to top, easily wastes ladder
Using height, and when being supported directly upon metope, and strength of stability is lower, easily causes the danger of sliding, increased staff
Danger coefficient, and upper end is not provided with tool mounting table, the tool used cannot be placed in upper end, which adds
The generated amount of labour and time when replacement tool, working efficiency is further reduced, and hold excessive tool in hand, easily
Cause the danger that tool falls；Double ladder when in use, people can only be conducive to oblique side or ride when upside, use comfort compared with
Difference, working efficiency are lower.
Then, I adheres to that the relevant industries are abundant for many years designs and develops and the experience of actual fabrication, for existing
Structure and missing are studied improvement, provide a kind of constructions work with more convenient comfortable ladder can be used, to reach more
Purpose with more practical value.
Summary of the invention
The purpose of the present invention is to provide a kind of constructions works with more convenient comfortable ladder can be used, above-mentioned to solve
The existing finishing proposed in background technique the device that ladder is that setting auxiliary uses, cannot effectively change existing ladder
Usage mode, to keep ladder use more comfortable, using effect is more preferable；Upper end is straight when in use for existing vertical ladder structure
Abut against on wall, it is extremely inconvenient that staff then stands when stepping on to top, easily waste ladder using height, Er Qiezhi
It connects when being supported in metope, and strength of stability is lower, easily causes the danger of sliding, the danger coefficient of increased staff, and
Upper end is not provided with tool mounting table, the tool used cannot be placed in upper end, and which adds produced when replacement tool
The raw amount of labour and time, further reduces working efficiency, and excessive tool is held in hand, and tool is easily caused to fall
It is dangerous；When in use, people can only be conducive to oblique side or ride when upside, use that comfort is poor double ladder, and working efficiency is lower
The problem of.
The constructions work of the present invention purpose and effect that more convenient comfortable ladder can be used, by technology hand in detail below
Section is reached:
A kind of constructions work is with can be used more convenient comfortable ladder, wherein the constructions work is more square with can be used
Just comfortable ladder includes bottom side limit cross bar, telescopic mast, caging bolt, longitudinally fixed column, upper lateral limit cross bar, branch
Dagger adjusts support column, support base, support base fixing bolt, pedestal, antiskid particles, placement net, limit hook, device noumenon
And reset spring；The upside welding of the bottom side limit cross bar is provided with telescopic mast；The telescopic mast insertion is installed on longitudinal solid
The inside of fixed column；Caging bolt is provided on the lower end outer wall of the longitudinally fixed column, and telescopic mast is limited by caging bolt
It is fixed on the inside of longitudinally fixed column；The longitudinally fixed column passes through upper lateral limit cross bar and is fixedly connected with support column,
And longitudinally fixed column is welded in the through hole of upper lateral limit cross bar；The front end insertion of the support column is equipped with adjusting support
Column, and adjust support column and be fixed on by caging bolt limit；The front end bolt for adjusting support column is fixedly installed support
Inside the tube seat of seat supports column.
Further, the longitudinally fixed column on described device ontology and support column are designed in corner structure.
Further, the telescopic mast is installed on the inside of longitudinally fixed column by reset spring insertion.
Further, two support column is connected to a fixed by placing net, and is placed net and be provided with upper layer and lower layer.
Further, the limit hook on the upper lateral limit cross bar and bottom side limit cross bar is in opposition structure welding
Setting.
Further, the pedestal on the support base is fixed on one end end of support base fixing bolt by universal ball joint
Place.
Further, cruciform symmetry is provided with swing handle on the outer wall of the support base fixing bolt.
Further, antiskid particles are provided on the supporting surface of the pedestal.
In comparison with existing structure, the invention has the following beneficial effects:
Longitudinally fixed column and support column in the device noumenon being equipped with are designed in corner structure, convenient for making ladder upper end and wall
To increase the ease of use of standing personnel, and a platform can also be arranged in face interval certain distance in the plane of turning
Structure, to place using tool, increase ladder uses functional and convenience.
The telescopic mast being equipped with is installed on the inside of longitudinally fixed column by reset spring insertion, convenient for that can lead to during installation
It crosses elastic stretching to be stuck on the treadle of ladder, the ladder of different in width treadle can be applicable in.
Two support columns being equipped with are connected to a fixed by placing net, and are placed net and be provided with upper layer and lower layer, convenient for increasing by two
The bonding strength of support column, and can also effectively improve the support strength for placing net upper and lower surface.
The limit hook on upper lateral limit cross bar and bottom side limit cross bar being equipped with is in opposition structure welding setting, just
On through two treadles for hooking and the device noumenon being made firmly to be fixed on ladder that oppose.
The pedestal on support base being equipped with is fixed on one end end point of support base fixing bolt by universal ball joint, works as seat
Body support when can the more quick and convenient adjusting by direction use metope structure, to increase stability of strutting system.
Cruciform symmetry is provided with swing handle on the outer wall for the support base fixing bolt being equipped with, can be with when installing support base
By swing handle, quickly and easily bolt is installed on adjusting support column, dismounts convenient performance convenient for improving.
Antiskid particles are provided on the supporting surface for the pedestal being equipped with, convenient for increasing the support frictional force of pedestal and front, from
And keep ladder more stable when using.
Detailed description of the invention
Fig. 1 is three dimensional structure diagram of the present invention；
Fig. 2 is the three-dimensional inside present invention looks up structural representation of the present invention；
Fig. 3 is three-dimensional exploded structural schematic diagram of the present invention；
Fig. 4 is that support base of the present invention decomposes three dimensional structure diagram；
Fig. 5 is side structure schematic view of the present invention；
Fig. 6 is that vertical ladder of the present invention installs three dimensional structure diagram；
Fig. 7 is that vertical ladder of the present invention installs three-dimensional partial enlargement structural representation；
Fig. 8 is that double ladder of the present invention installs three dimensional structure diagram.
In figure, the corresponding relationship of component names and accompanying drawing number are as follows:
The bottom side 1- limits cross bar, 2- telescopic mast, 3- caging bolt, the longitudinally fixed column of 4-, 5- upper lateral limit cross bar, 6-
Support column, 7- adjust support column, 8- support base, 801- support base fixing bolt, 802- pedestal, 803- antiskid particles, 9- placement
Net, 10- limit hook, 11- device noumenon, 12- reset spring.
Specific embodiment
Embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples.Following embodiment is used for
Illustrate the present invention, but cannot be used to limit the scope of the invention.
In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more；Term " on ",
The orientation or positional relationship of the instructions such as "lower", "left", "right", "inner", "outside", " front end ", " rear end ", " head ", " tail portion " is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second ", " third " etc. are used for description purposes only, and should not be understood as instruction or
Imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " connected " " connects
Connect " it shall be understood in a broad sense, for example, it may be being fixedly connected, it may be a detachable connection, or be integrally connected；It can be machine
Tool connection, is also possible to be electrically connected；It can be directly connected, it can also be indirectly connected through an intermediary.For this field
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Embodiment:
As shown in attached drawing 1 to attached drawing 8:
The present invention provides a kind of constructions work with more convenient comfortable ladder can be used, and includes bottom side limit cross bar 1,
Telescopic mast 2, caging bolt 3, longitudinally fixed column 4, upper lateral limit cross bar 5, support column 6, adjusting support column 7, support base 8,
Support base fixing bolt 801, pedestal 802, antiskid particles 803 place net 9, limit hook 10, device noumenon 11 and reset spring
12；The upside welding of the bottom side limit cross bar 1 is provided with telescopic mast 2；The insertion of telescopic mast 2 is installed on longitudinally fixed column 4
Inside；Caging bolt 3 is provided on the lower end outer wall of the longitudinally fixed column 4, and telescopic mast 2 is limited by caging bolt 3
It is fixed on the inside of longitudinally fixed column 4；The longitudinally fixed column 4, which passes through upper lateral limit cross bar 5 and fixes with support column 6, to be connected
It connects, and longitudinally fixed column 4 is welded in the through hole of upper lateral limit cross bar 5；The front end insertion of the support column 6 is equipped with tune
Support column 7 is saved, and adjusts support column 7 and is fixed on by the limit of caging bolt 3；The front end bolt for adjusting support column 7 is fixed
It is provided with inside the tube seat of 8 support column 6 of support base.
Wherein, the longitudinally fixed column 4 on described device ontology 11 and support column 6 are designed in corner structure, convenient for making ladder
Upper end is spaced apart with metope, to increase the ease of use of standing personnel, and can also set in the plane of turning
A platform structure is set, to place using tool, increase ladder uses functional and convenience, according to shown in Fig. 1-5.
Wherein, the telescopic mast 2 is embedded in the inside for being installed on longitudinally fixed column 4 by reset spring 12, convenient for installing
When can be stuck on the treadle of ladder by elastic stretching, the ladder of different in width treadle can be applicable in, according to shown in Fig. 2.
Wherein, two support column 6 is connected to a fixed by placing net 9, and is placed net 9 and be provided with upper layer and lower layer, is convenient for
Increase the bonding strength of two support columns 6, and can also effectively improve the support strength for placing 9 upper and lower surface of net, according to Fig. 1 institute
Show.
Wherein, the limit hook 10 on the upper lateral limit cross bar 5 and bottom side limit cross bar 1 is in opposition structure welding
Setting, convenient for being fixed on the device noumenon 11 firmly on two treadles of ladder by opposing to hooking, according to shown in Fig. 1-6.
Wherein, the pedestal 802 on the support base 8 is fixed on one end of support base fixing bolt 801 by universal ball joint
End point, when pedestal 802 support when can the more quick and convenient adjusting by direction use metope structure, to increase branch
Stability is supportted, according to shown in Fig. 4.
Wherein, cruciform symmetry is provided with swing handle on the outer wall of the support base fixing bolt 801, in installation support base
When 8 can by swing handle, quickly and easily bolt is installed on and adjusts support column 7, convenient performance is dismounted convenient for improving, according to Fig. 4
It is shown.
Wherein, antiskid particles 803 are provided on the supporting surface of the pedestal 802, convenient for increasing the branch of pedestal 802 and front
Frictional force is supportted, to keep ladder more stable when using, according to shown in Fig. 4.
The specifically used mode and effect of the present embodiment:
The present invention is in use, unclamp caging bolt 3 firstly the need of manual, then by the limit on upper lateral limit cross bar 5
Position hook 10 is first hung on the treadle of upper end, is then limited cross bar 1 by bottom side and is pulled down telescopic mast 2, can extend downwardly,
To be stuck on the treadle of the adjacent downside of ladder, then voluntarily being sprung back by the effect of reset spring 12 is stuck in limit hook 10
On treadle, then support base 8 is rotated and is fixed on the front end for adjusting support column 7, and can be according to the width adjusting tune of support
The length of support column 7 is saved, and is provided with antiskid particles 803 on pedestal 802 herein, can make this that device noumenon is installed
11 ladder support is more stable, can carry out operation of ascending a height at this time, and tool can be placed in and place the upper of net 9
Side carries out use of taking, and in double ladder in use, can be fixed as shown in Figure 8, but needs to remove support base 8, then
Operating personnel ascends a height, and can be seated at the upside progress construction operation for placing net 9, improve the comfort of ladder, need herein
Telescopic mast 2 is subjected to locking limit by caging bolt 3, when operating personnel being prevented to be seated at upside, its telescopic mast 2 is moved down and causes
It is dangerous.
In conclusion although the present invention is described in detail referring to the foregoing embodiments, for the technology of this field
For personnel, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technology
Feature is equivalently replaced, all within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on, and
It should be included within protection scope of the present invention.
Claims (8)
1. a kind of constructions work is with can be used more convenient comfortable ladder, it is characterised in that: the constructions work is with can be used more
The ladder for adding Energy and comfort includes bottom side limit cross bar (1), telescopic mast (2), caging bolt (3), longitudinally fixed column (4), top
Cross spacing cross bar (5), support column (6) are adjusted support column (7), support base (8), support base fixing bolt (801), pedestal
(802), antiskid particles (803) are placed net (9), limit hook (10), device noumenon (11) and reset spring (12)；The bottom
The upside welding of lateral confinement position cross bar (1) is provided with telescopic mast (2)；Telescopic mast (2) insertion is installed on longitudinally fixed column (4)
Inside；It is provided with caging bolt (3) on the lower end outer wall of the longitudinally fixed column (4), and telescopic mast (2) passes through caging bolt
(3) inside of longitudinally fixed column (4) is fixed in limit；The longitudinally fixed column (4) pass through upper lateral limit cross bar (5) and with
Support column (6) is fixedly connected, and longitudinally fixed column (4) is welded in the through hole of upper lateral limit cross bar (5)；The support column
(6) front end insertion, which is equipped with, adjusts support column (7), and adjusts support column (7) and be fixed on by caging bolt (3) limit；Institute
The front end bolt for stating adjusting support column (7) is fixedly installed inside the tube seat of support base (8) support column (6).
2. constructions work according to claim 1 is with can be used more convenient comfortable ladder, it is characterised in that: the dress
The longitudinally fixed column (4) and support column (6) set on ontology (11) are designed in corner structure.
3. constructions work according to claim 1 is with can be used more convenient comfortable ladder, it is characterised in that: described to stretch
Contracting column (2) is installed on the inside of longitudinally fixed column (4) by reset spring (12) insertion.
4. constructions work according to claim 1 is with can be used more convenient comfortable ladder, it is characterised in that: described two
Support column (6) is connected to a fixed by placing net (9), and is placed net (9) and be provided with upper layer and lower layer.
5. constructions work according to claim 1 is with can be used more convenient comfortable ladder, it is characterised in that: on described
Limit hook (10) on portion's cross spacing cross bar (5) and bottom side limit cross bar (1) is in opposition structure welding setting.
6. constructions work according to claim 1 is with can be used more convenient comfortable ladder, it is characterised in that: the branch
Pedestal (802) in support seat (8) is fixed on one end end point of support base fixing bolt (801) by universal ball joint.
7. constructions work according to claim 1 is with can be used more convenient comfortable ladder, it is characterised in that: the branch
It supports cruciform symmetry on the outer wall of seat fixing bolt (801) and is provided with swing handle.
8. constructions work according to claim 1 is with can be used more convenient comfortable ladder, it is characterised in that: the seat
Antiskid particles (803) are provided on the supporting surface of body (802).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810878052.7A CN109025790A (en) | 2018-08-03 | 2018-08-03 | A kind of constructions work is with can be used more convenient comfortable ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810878052.7A CN109025790A (en) | 2018-08-03 | 2018-08-03 | A kind of constructions work is with can be used more convenient comfortable ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109025790A true CN109025790A (en) | 2018-12-18 |
Family
ID=64649370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810878052.7A Withdrawn CN109025790A (en) | 2018-08-03 | 2018-08-03 | A kind of constructions work is with can be used more convenient comfortable ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109025790A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112502607A (en) * | 2020-12-03 | 2021-03-16 | 中建四局安装工程有限公司 | Movable ladder stand for high-altitude operation construction |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4359138A (en) * | 1978-12-01 | 1982-11-16 | Kuemmerlin Walter | Supporting device for ladders |
| GB2093901B (en) * | 1981-02-23 | 1984-08-22 | Howard Geoffrey Boscawen | Ladder attachment |
| US5855252A (en) * | 1995-01-30 | 1999-01-05 | Vrolyks; Jan William | Ladder safety attachment |
| AU8930598A (en) * | 1997-10-14 | 1999-05-06 | Ladder Guard Pty Limited | Ladder guard |
| JP2006112216A (en) * | 2004-09-17 | 2006-04-27 | Sapporo Sanki Kk | Ladder |
| CN202157742U (en) * | 2011-05-30 | 2012-03-07 | 苏州荣利达工具有限公司 | Ladder extending bracket convenient for quick installation |
| CN204152417U (en) * | 2014-08-19 | 2015-02-11 | 崔志标 | A kind of removable hanging ladder |
-
2018
- 2018-08-03 CN CN201810878052.7A patent/CN109025790A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4359138A (en) * | 1978-12-01 | 1982-11-16 | Kuemmerlin Walter | Supporting device for ladders |
| GB2093901B (en) * | 1981-02-23 | 1984-08-22 | Howard Geoffrey Boscawen | Ladder attachment |
| US5855252A (en) * | 1995-01-30 | 1999-01-05 | Vrolyks; Jan William | Ladder safety attachment |
| AU8930598A (en) * | 1997-10-14 | 1999-05-06 | Ladder Guard Pty Limited | Ladder guard |
| JP2006112216A (en) * | 2004-09-17 | 2006-04-27 | Sapporo Sanki Kk | Ladder |
| CN202157742U (en) * | 2011-05-30 | 2012-03-07 | 苏州荣利达工具有限公司 | Ladder extending bracket convenient for quick installation |
| CN204152417U (en) * | 2014-08-19 | 2015-02-11 | 崔志标 | A kind of removable hanging ladder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112502607A (en) * | 2020-12-03 | 2021-03-16 | 中建四局安装工程有限公司 | Movable ladder stand for high-altitude operation construction |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181218 |