CN106276496A - A kind of hand-rail type multi-functional climbing ladder of applicable old people - Google Patents
A kind of hand-rail type multi-functional climbing ladder of applicable old people Download PDFInfo
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- CN106276496A CN106276496A CN201610875142.1A CN201610875142A CN106276496A CN 106276496 A CN106276496 A CN 106276496A CN 201610875142 A CN201610875142 A CN 201610875142A CN 106276496 A CN106276496 A CN 106276496A
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- leading screw
- hand
- ladder
- gear
- support
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
- B66B9/02—Kinds or types of lifts in, or associated with, buildings or other structures actuated mechanically otherwise than by rope or cable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/04—Driving gear ; Details thereof, e.g. seals
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Automation & Control Theory (AREA)
- Civil Engineering (AREA)
- Ladders (AREA)
Abstract
The invention discloses the multi-functional climbing ladder of hand-rail type of a kind of applicable old people; relate to climbing equipment technical field; including leading screw, hand-operated gear drive mechanism, safety protection mechanism, safety supporting device, frame, upper leading screw support and lower leading screw support; upper leading screw support and lower leading screw support are arranged in frame by screw; the helical angle of leading screw is 45 degree; its two ends are fixed on upper and lower leading screw support; hand-operated gear drive mechanism and leading screw coordinate, and are connected by pin and safety supporting device；The present invention shakes gear drive hand drive safety supporting device is risen or fallen by hand starting, and reaches function that is manned and that transport weight.Described safety protection mechanism can arrange self-locking when the people carried, thing, is used for preventing people or weight from falling.Multi-functional climbing ladder is easy to operate for this, it is laborsaving to use, safety is high, dismounting is quick, not only can make common ladder and use but also can to make hand-operated lifting ladder manned and transport weight.
Description
Technical field
The present invention relates to climbing equipment technical field, be specifically related to that the hand-rail type of a kind of applicable old people is multi-functional to climb
Ladder.
Background technology
At present, along with development and the progress of society, the living standard of the people has had qualitative leap and lifting, especially
In rural area, what growth in the living standard embodied becomes apparent from, and one of them aspect clearly is exactly the house of peasant, substantially
Every household has all lived in one-storey house, and in order to save the space in house, these one-storey houses are the most all not provided with the stair on straight-through roof,
Roof up and down in daily life or be all dependent on ladder toward roof carrying thing etc. and realize, this for youngster relatively
For easily, but for the family that some familys only have old people to live, just have many inconvenience and trouble, old people
Climbing ladder has the biggest potential danger, and the climbing ladder therefore designing a kind of applicable old people is necessary.
Climbing ladder the most on the market has multiple, such as yi word pattern ladder, herringbone ladder, extension ladder, these ladders
Having potential security threat, also electric ladder for old people, not only price is high, must rely on power supply, make during work
By inconvenience.
By patent retrieval, there is following known technical scheme:
Patent 1:
Application number: CN201410388765.7, the applying date: 2014.08.10, authorized announcement date: 2014.11.05, a kind of
Upright ladder, has including assembly: underframe, adjusting bracket, lengthening frame, upper frame, extension pipe；Described underframe and upper frame are designed with metal
Plate and rubber slab, described adjusting bracket, it is provided with screw rod, in order to regulate the height of ladder；Described lengthening frame and extension pipe, all set
There are jack and plug；Components above connects into ladder by hickey or jack by the way of plug, and by adjusting bracket
Screw rod regulation ladder height, makes ladder withstand on tightly between ground and furred ceiling.The feature of this ladder is: firm；Take ground
Space of planes is few；Detachably, convenient transportation；Compensate for " one " word ladder or " people " word some defects functionally of ladder.
A kind of upright ladder of this disclosure of the invention, have firm, take up an area the advantages such as space is little, detachable, also compensate for one
Font or some defects functionally of herringbone ladder, but this ladder is still that needing manpower to creep could realize climbing
, for old people, still there is this safety, the defect such as laborious in function.
Patent 2:
Application number: CN201020679592.1, the applying date: 2010.12.25, authorized announcement date: 2011.06.29, this reality
With novel offer one electric ladder, it is made up of casing, motor, hoistable platform, fixed support, rotating shaft, erect-position case, alignment pin,
It at least includes four hoistable platforms, installs sound controller at lower box and controls switch.This utility model has the beneficial effect that this
Ladder solves the problem that simple ladder safety is the highest, in using, opens shift knob, electric motor starting, and ladder automatically ramps up to one
Fixed height, when landing, sound controller can control the decline of ladder, designs rational in infrastructure, strong interference immunity, and susceptiveness is high, operation
Simply, can be widely used for delivering goods and people.
The open a kind of electric ladder of this patent, opens shift knob, electric motor starting during use, ladder automatically ramps up to certain height
Degree, can be widely used for delivering goods and people, but this ladder is the heaviest, and work must rely on power supply, and the suitability is the highest.
Being found by above retrieval, above technical scheme does not affect the novelty of the present invention；And above patent literary composition
Part be mutually combined the creativeness not destroying the present invention.
It is therefore desirable to design one is not only suitable for strong and does not rely on power supply, the multi-functional climbing ladder of applicable old people,
Realize on the premise of safety old people climb roof and transport goods function.
Summary of the invention
(1) solve the technical problem that
The technical problem to be solved there is provided the multi-functional climbing ladder of hand-rail type of a kind of applicable old people,
To overcome the roof up and down in life in the countryside or to rely on ladder to realize toward roof carrying thing, climbing ladder the most on the market
Such as yi word pattern ladder, herringbone ladder and extension ladder, for old people, there is potential security threat, and electric ladder is not
Only price is high, must rely on power supply, inconvenient problem with use during work.
(2) technical scheme
For realizing object above, the present invention is achieved by the following technical programs: a kind of applicable old people's is hand
The multi-functional climbing ladder of formula, including leading screw, hand-operated gear drive mechanism, safety protection mechanism, safety supporting device, frame, upper silk
Thick stick support and lower leading screw support；Described upper leading screw support is fixedly connected on frame top, and described lower leading screw support is fixedly connected on
Frame bottom, the upper and lower two ends of described leading screw are fixing with upper leading screw support and lower leading screw support respectively to be connected, and is arranged at frame center line
Right side；Described hand-operated gear drive mechanism is connected with leading screw, and described safety supporting device is connected also with frame, leading screw
It is connected with hand-operated gear drive mechanism by connecting pin.
Further, described hand-operated gear drive mechanism includes driven helical gear, active oblique gear, gear shaft, hand crank
Hands, gear shaft support and thrust bearing；Described driven helical gear center is provided with screwed hole and is coordinated with leading screw even by screwed hole
Connecing, described driven helical gear center is spoke structure；The engagement connection of described driven helical gear has active oblique gear, described active
Helical gear is connected by key and gear shaft one end fits are fixing；The described gear shaft other end is fixedly connected with hand by key cooperation
Handle, described hand cranking handle is L-type rod-like structure；Described gear shaft support one end is socketed with leading screw by circular hole, and the other end is joined
Conjunction is rotationally connected with in the middle part of gear shaft；It is provided with for bearing pushing away of radial load between described gear shaft support and driven helical gear
Power bearing.
Further, described safety supporting device include connecting pin, upper bracket, lower carriage, miniature ladder, gripper shoe,
Hands and cross-brace post, described gear shaft support and upper bracket be provided with pin-and-hole, be connected with connecting pin in described pin-and-hole,
Described gear shaft support is connected with upper bracket by connecting pin；It is provided with installing hole in the middle part of described upper bracket and lower carriage, and leads to
Crossing installing hole to be socketed on leading screw, described upper bracket and lower carriage two ends coordinate rolling respectively even by rolling element with frame both sides
Connect；Being fixedly connected with miniature ladder between described upper bracket and lower carriage, described miniature ladder top portion is provided with handle；Described lower carriage is also
Fixing parallel connection has on the upside of at least two cross-brace post, described support and cross-brace post and is fixedly connected with gripper shoe.
Further, described safety protection mechanism includes that ratchet and gear shaft, described gear shaft circumferentially face are laid with
Ratchet slot, described ratchet is connected to gear shaft side face and is connected with gear shaft.
Further, described frame is made up of high strength steel material, and for square grid lattice structure, its upper and lower two ends have spiral shell
Pit.
Further, described upper leading screw support is made up of high strength steel, and described upper leading screw support is fixing even by screw
It is connected to the top of frame, be provided with sunk structure on the right side of described upper leading screw mid-stent, which is provided with screwed hole, and pass through screwed hole
It is fixedly connected with leading screw upper end.
Further, described lower leading screw support is made up of high strength steel, and its right-hand member is hook type structure, and left end is screw clamp
Tight mechanism, and it is fixed on frame bottom by the lower leading screw support fastening board of trip bolt clamping；Described lower leading screw mid-stent is
Half slot structure, and it is fixed connection leading screw lower end by lower leading screw support fastening plate.
Further, described leading screw is elongated leading screw, and its helical angle is 45 degree.
Further, the screwed hole helical angle at described driven helical gear center is 45 degree, described active oblique gear helical angle
It it is 45 degree.
(3) beneficial effect
The invention provides the multi-functional climbing ladder of hand-rail type of a kind of applicable old people, use hand-operated gear drive mechanism
The driven helical gear coordinated with leading screw is driven to rotate, it is achieved the raising and lowering of safety supporting device, screw-threaded shaft elevator structure transmission
Ratio is big, laborsaving, and has self locking safety defencive function；Dismantle or do not dismantle screw lifting device, could act as a common word
Type ladder uses；Multi-functional climbing ladder is easy to operate for this, it is laborsaving to use, safety is high, dismounting is quick, both can make conventional elevator
Son use can make again hand-operated lifting ladder manned and transport weight.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the partial structurtes schematic diagram of the present invention；
Fig. 3 is the structural representation of hand-operated transmission of the present invention；
Fig. 4 is the front view of the present invention；
Fig. 5 is the top view of the present invention；
Fig. 6 is the structural representation of upper bracket of the present invention；
Fig. 7 is the structural representation of cross-brace post of the present invention；
Fig. 8 is the structural representation of the lower leading screw support of the present invention.
In figure:
1, upper leading screw support；2, leading screw；3, handle；4, upper bracket；5, miniature ladder；6, lower carriage；7, lower leading screw support adds
Tight plate；8, lower leading screw support fastening plate；9, lower leading screw support；10, gripper shoe；11, driven helical gear；12, hand cranking handle；13、
Gear shaft；14, ratchet；15, gear shaft support；16, frame；17, rolling element；18, active oblique gear；19, connecting pin；20、
Cross-brace post；21, thrust bearing.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the embodiment of the present invention,
Technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is the present invention one
Divide embodiment rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making
The every other embodiment obtained under creative work premise, broadly falls into the scope of protection of the invention.
Shown in Fig. 1～8, its structural relation is: include leading screw 2, hand-operated gear drive mechanism, safety protection mechanism,
Safety supporting device, frame 16, upper leading screw support 1 and lower leading screw support 9；Upper leading screw support 1 is fixedly connected on frame 16 top,
Lower leading screw support 9 is fixedly connected on frame 16 bottom, and leading screw about 2 two ends are solid with upper leading screw support 1 and lower leading screw support 9 respectively
Fixed connection, is arranged on the right side of frame 16 center line；Hand-operated gear drive mechanism is connected with leading screw, safety supporting device and frame
16, leading screw 12 connects and passes through connecting pin 19 and is connected with hand-operated gear drive mechanism.
Preferably, hand-operated gear drive mechanism includes driven helical gear 11, active oblique gear 18, gear shaft 13, hand crank
Hands 12, gear shaft support 15 and thrust bearing 21；Driven helical gear 11 center is provided with screwed hole and is joined with leading screw 2 by screwed hole
Closing and connect, driven helical gear 11 center is spoke structure；Driven helical gear 11 engages connection active oblique gear 18, the most tiltedly
Gear 18 is connected by key and gear shaft 13 one end fits are fixing；Gear shaft 13 other end is fixedly connected with hand by key cooperation
Handle 12, hand cranking handle 12 is L-type rod-like structure；Gear shaft support 15 one end is socketed with leading screw 2 by circular hole, and the other end coordinates
It is rotationally connected with in the middle part of gear shaft 13；It is provided with between gear shaft support 15 and driven helical gear 11 for bearing pushing away of radial load
Power bearing 21.
Preferably, safety supporting device include connecting pin 19, upper bracket 4, lower carriage 6, miniature terraced 5, gripper shoe 10,
Hands 3 and cross-brace post 20, gear shaft support 15 and upper bracket 4 are provided with pin-and-hole, are connected with connecting pin 19 in pin-and-hole,
Gear shaft support 15 is connected with upper bracket 15 by connecting pin 19；It is provided with installing hole in the middle part of upper bracket 4 and lower carriage 6, and leads to
Crossing installing hole to be socketed on leading screw 2, upper bracket 4 and lower carriage 6 two ends coordinate rolling with frame 16 both sides respectively by rolling element 17
It is dynamically connected；Being fixedly connected with miniature terraced 5 between upper bracket 4 and lower carriage 6, miniature terraced 5 tops are provided with handle 3；Lower carriage 4 is the most solid
Allocate capable connection to have on the upside of at least two cross-brace post 20, support 4 and cross-brace post 20 and be fixedly connected with gripper shoe 10.
Preferably, safety protection mechanism includes that ratchet 14 and gear shaft 13, gear shaft 13 circumferentially face are laid with ratchet
Groove, ratchet 14 is connected to gear shaft support 15 side and is connected with gear shaft 13, in the people carried, the effect of the gravity of thing
Lower self-locking, is used for preventing people or weight from falling.
Preferably, frame 16 is made up of high strength steel material, and for square grid lattice structure, its upper and lower two ends have screw thread
Hole.
Preferably, upper leading screw support 1 is made up of high strength steel, and upper leading screw support 1 is fixedly connected on frame by screw
The top of 16, in the middle part of upper leading screw support 1, right side is provided with sunk structure, which is provided with screwed hole, and connects by screwed hole is fixing
There is leading screw 2 upper end.
Preferably, lower leading screw support 9 is made up of high strength steel, and its right-hand member is hook type structure, and left end is screws clamp machine
Structure, and it is fixed on frame 16 bottom by the lower leading screw support fastening board 7 of trip bolt clamping；It is semicircle in the middle part of lower leading screw support 9
Groove structure, and it is fixed connection leading screw 2 lower end by lower leading screw support fastening plate 8.
Preferably, leading screw 2 is elongated leading screw, and its helical angle is 45 degree.
Preferably, the screwed hole helical angle at driven helical gear 11 center is 45 degree, and active oblique gear 18 helical angle is 45 degree.
Time specifically used, when carry out climbing operation time, first this device is placed on the edge on roof so that it is with limit, roof
Edge rigid contact, then, occupant stands in gripper shoe 10, or occupant and goods are both placed in gripper shoe 10, take advantage of
The hand-held handle of seated user 3, to ensure the stability of self, rotates hand cranking handle 12 with hands, drives active oblique gear 18 to rotate, thus
Drive driven helical gear 11 to rotate, rise along leading screw 2 and drive connected safety supporting device slowly to rise to roof,
Occupant rises to roof by miniature terraced 5.When carrying out declining operation, the direction of ratchet 14 is rotated by occupant, then negative side
To rotating hand cranking handle 12, i.e. can reach the purpose of decline.
During whole use, user only needs forward or rotates backward hand cranking handle 12 and can realize climbing and declining
Purpose, and effect due to ratchet 14 can realize reverse self-locking function in process of rising or falling so that safety
Can be greatly improved.Active oblique gear 18 and driven helical gear 11 have the biggest gear ratio, and this device is easy to use, operation letter
Single, safety labor-saving.
Do not dismantle and during non-working condition when the multi-functional climbing ladder of hand-rail type is in, hand-operated gear drive mechanism, safety support
Support arrangement is placed under ladder base on leading screw support 9, it is simple to can be from ladder when user does not use hand-operated gear drive mechanism
Directly climb to top on the left of center deviation；The frame 16 of the multi-functional climbing ladder of hand-rail type is permissible in the case of not installing miscellaneous part
Use as common yi word pattern ladder.
To sum up, the embodiment of the present invention has the advantages that employing hand-operated gear drive mechanism driving coordinates with leading screw
Driven helical gear rotate, it is achieved the raising and lowering of safety supporting device, screw-threaded shaft elevator structure gear ratio is big, laborsaving, and tool
There is self locking safety defencive function；Dismantle or do not dismantle screw lifting device, could act as common yi word pattern ladder and use；Should
Multi-functional climbing ladder is easy to operate, it is laborsaving to use, safety is high, dismounting is quick, not only can make the use of common ladder but also can make
Hand-operated lifting ladder is manned and transports weight.
It should be noted that in this article, the relational terms of such as first and second or the like is used merely to a reality
Body or operation separate with another entity or operating space, and deposit between not necessarily requiring or imply these entities or operating
Relation or order in any this reality.And, term " includes ", " comprising " or its any other variant are intended to
Comprising of nonexcludability, so that include that the process of a series of key element, method, article or equipment not only include that those are wanted
Element, but also include other key elements being not expressly set out, or also include for this process, method, article or equipment
Intrinsic key element.In the case of there is no more restriction, statement " including ... " key element limited, it is not excluded that
Including process, method, article or the equipment of described key element there is also other identical element.
Above example only in order to technical scheme to be described, is not intended to limit；Although with reference to previous embodiment
The present invention is described in detail, it will be understood by those within the art that: it still can be to aforementioned each enforcement
Technical scheme described in example is modified, or wherein portion of techniques feature is carried out equivalent；And these amendment or
Replace, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (9)
1. the multi-functional climbing ladder of the hand-rail type of an applicable old people, it is characterised in that: include that leading screw (2), hand-operated gear pass
Motivation structure, safety protection mechanism, safety supporting device, frame (16), upper leading screw support (1) and lower leading screw support (9)；On described
Leading screw support (1) is fixedly connected on frame (16) top, and described lower leading screw support (9) is fixedly connected on frame (16) bottom, institute
State leading screw (2) up and down two ends to fix with upper leading screw support (1) and lower leading screw support (9) respectively and be connected, be arranged in frame (16)
On the right side of line；Described hand-operated gear drive mechanism is connected with leading screw, described safety supporting device and frame (16), leading screw
(12) connect and pass through connecting pin (19) and be connected with hand-operated gear drive mechanism.
The multi-functional climbing ladder of hand-rail type of a kind of applicable old people the most according to claim 1, it is characterised in that: described
Hand-operated gear drive mechanism includes driven helical gear (11), active oblique gear (18), gear shaft (13), hand cranking handle (12), tooth
Axle bracket (15) and thrust bearing (21)；Described driven helical gear (11) center is provided with screwed hole and by screwed hole and leading screw
(2) being connected, described driven helical gear (11) center is spoke structure；The engagement connection of described driven helical gear (11) has master
Dynamic helical gear (18), described active oblique gear (18) is connected by key and gear shaft (13) one end fits are fixing；Described gear shaft
(13) other end is fixedly connected with hand cranking handle (12) by key cooperation, and described hand cranking handle (12) is L-type rod-like structure；Described
Gear shaft support (15) one end is socketed with leading screw (2) by circular hole, and other end cooperation is rotationally connected with gear shaft (13) middle part；Institute
State the thrust bearing (21) being provided with between gear shaft support (15) and driven helical gear (11) for bearing radial load.
The multi-functional climbing ladder of hand-rail type of a kind of applicable old people the most according to claim 2, it is characterised in that: described
Safety supporting device includes connecting pin (19), upper bracket (4), lower carriage (6), miniature ladder (5), gripper shoe (10), handle (3)
With cross-brace post (20), described gear shaft support (15) and upper bracket (4) are provided with pin-and-hole, are connected with in described pin-and-hole
Connecting pin (19), described gear shaft support (15) is connected with upper bracket (15) by connecting pin (19)；Described upper bracket (4)
It is provided with installing hole with lower carriage (6) middle part, and is socketed on leading screw (2) by installing hole, described upper bracket (4) and lower carriage
(6) two ends coordinate rolling to be connected with frame (16) both sides by rolling element (17) respectively；Described upper bracket (4) and lower carriage (6)
Between be fixedly connected with miniature ladder (5), described miniature ladder (5) top is provided with handle (3)；Described lower carriage (4) is also fixed parallel
Connecting and have at least two cross-brace post (20), described support (4) and cross-brace post (20) upside are fixedly connected with gripper shoe
(10)。
The multi-functional climbing ladder of hand-rail type of a kind of applicable old people the most according to claim 3, it is characterised in that: described
Safety protection mechanism includes ratchet (14) and gear shaft (13), and described gear shaft (13) circumferentially face is laid with ratchet slot, institute
State ratchet (14) be connected to gear shaft support (15) side and be connected with gear shaft (13).
5. according to the multi-functional climbing ladder of hand-rail type of a kind of applicable old people described in any one in Claims 1 to 4, its
Being characterised by: described frame (16) is made up of high strength steel material, for square grid lattice structure, its upper and lower two ends have screw thread
Hole.
6. according to the multi-functional climbing ladder of hand-rail type of a kind of applicable old people described in any one in Claims 1 to 4, its
Being characterised by: described upper leading screw support (1) is made up of high strength steel, described upper leading screw support (1) connects by screw is fixing
In the top of frame (16), described upper leading screw support (1) is provided with sunk structure on the right side of middle part, which is provided with screwed hole, and passes through
Screwed hole is fixedly connected with leading screw (2) upper end.
7. according to the multi-functional climbing ladder of hand-rail type of a kind of applicable old people described in any one in Claims 1 to 4, its
It is characterised by: described lower leading screw support (9) is made up of high strength steel, and its right-hand member is hook type structure, and left end is screws clamp machine
Structure, and it is fixed on frame (16) bottom by lower leading screw support fastening board (7) of trip bolt clamping；Described lower leading screw support (9)
Middle part is half slot structure, and is fixed connection leading screw (2) lower end by lower leading screw support fastening plate (8).
8. according to the multi-functional climbing ladder of hand-rail type of a kind of applicable old people described in any one in Claims 1 to 4, its
Being characterised by: described leading screw (2) is elongated leading screw, its helical angle is 45 degree.
9. according to the multi-functional climbing ladder of hand-rail type of a kind of applicable old people described in any one in Claims 1 to 4, its
It is characterised by: the screwed hole helical angle at described driven helical gear (11) center is 45 degree, described active oblique gear (18) helical angle
It it is 45 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610875142.1A CN106276496B (en) | 2016-09-30 | 2016-09-30 | A kind of multi-functional climbing ladder of hand-rail type of suitable the elderly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610875142.1A CN106276496B (en) | 2016-09-30 | 2016-09-30 | A kind of multi-functional climbing ladder of hand-rail type of suitable the elderly |
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| Publication Number | Publication Date |
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| CN106276496A true CN106276496A (en) | 2017-01-04 |
| CN106276496B CN106276496B (en) | 2018-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610875142.1A Active CN106276496B (en) | 2016-09-30 | 2016-09-30 | A kind of multi-functional climbing ladder of hand-rail type of suitable the elderly |
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| CN109954252A (en) * | 2019-04-08 | 2019-07-02 | 湖州慧能机电科技有限公司 | A kind of safe and efficient wire pole climbing tool |
| KR20220046112A (en) * | 2020-10-07 | 2022-04-14 | 류순모 | High-rise building fire evacuation device |
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| CN109954252B (en) * | 2019-04-08 | 2020-09-18 | 广东电网有限责任公司肇庆供电局 | Safe and fast telegraph pole climbing tool |
| KR20220046112A (en) * | 2020-10-07 | 2022-04-14 | 류순모 | High-rise building fire evacuation device |
| KR102457789B1 (en) * | 2020-10-07 | 2022-10-20 | 류순모 | High-rise building fire evacuation device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106276496B (en) | 2018-09-04 |
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