CN106761358A - Reduction ladder - Google Patents

Reduction ladder Download PDF

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Publication number
CN106761358A
CN106761358A CN201611146370.1A CN201611146370A CN106761358A CN 106761358 A CN106761358 A CN 106761358A CN 201611146370 A CN201611146370 A CN 201611146370A CN 106761358 A CN106761358 A CN 106761358A
Authority
CN
China
Prior art keywords
ladder
terraced
reduction
unit
vertical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201611146370.1A
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Chinese (zh)
Inventor
文国栋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chengdu Juzhi Industrial Design Co Ltd
Original Assignee
Chengdu Juzhi Industrial Design Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chengdu Juzhi Industrial Design Co Ltd filed Critical Chengdu Juzhi Industrial Design Co Ltd
Priority to CN201611146370.1A priority Critical patent/CN106761358A/en
Publication of CN106761358A publication Critical patent/CN106761358A/en
Pending legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C1/00Ladders in general
    • E06C1/02Ladders in general with rigid longitudinal member or members
    • E06C1/14Ladders capable of standing by themselves
    • E06C1/16Ladders capable of standing by themselves with hinged struts which rest on the ground
    • E06C1/18Ladders capable of standing by themselves with hinged struts which rest on the ground with supporting struts formed as ladders
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C7/00Component parts, supporting parts, or accessories
    • E06C7/02Extending means
    • E06C7/04Hand-operated extending means carried by the ladder
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C7/00Component parts, supporting parts, or accessories
    • E06C7/42Ladder feet; Supports therefor
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C7/00Component parts, supporting parts, or accessories
    • E06C7/50Joints or other connecting parts

Abstract

The present invention relates to a kind of ladder, i.e., a kind of extension ladder, including double ladder are terraced with vertical, and double ladder is terraced scalable with vertical, and beneficial effect is:Whole ladder can significantly stretch, and ladder Stability Analysis of Structures, because of the change of ladder center of gravity ladder can't be caused unstable.

Description

Reduction ladder
Technical field
The present invention relates to a kind of electrician's apparatus, i.e., a kind of reduction ladder.
Background technology
Can be lifted more than current ladder, but the limited extent of lifting, and the present invention will provide a kind of ladder elevation amplitude Greatly, can be raised as desired.
The content of the invention
It is easy to carry it is an object of the invention to provide one kind, heighten amplitude greatly, the small reduction ladder of occupied ground.
Above-mentioned purpose is realized by following technical scheme:Develop a kind of reduction ladder, including the herringbone that two inclined ladders are constituted Ladder, is characterized in:One expansion bracket is installed, expansion bracket is provided with two with vertical ladder between two inclined ladder upper ends of the double ladder The slideway that side frame is slidably matched.One rise-withdraw fram 3 is installed, rise-withdraw fram 3 is provided between two upper ends of inclined ladder 2 of the double ladder 1 The slideway 9 that two side frames 13 with vertical terraced 5 are slidably matched, described vertical terraced 5 are respectively arranged at two ends with jack 15 and joint 14, italic 2 It is made up of two kinds of top section of ladder units, middle section of ladder unit and tail end section of ladder unit, middle section of ladder unit two is respectively equipped with slotting Hole 15 and joint 14, top section of ladder unit are provided with jack 15 or joint 14 with middle section of ladder unit matching grafting, tail end ladder Section unit is provided with joint 14 or jack 15 with middle section of ladder unit matching grafting, the upper end connection top of middle section of ladder unit Section of ladder unit, the lower end connection tail end section of ladder unit of middle section of ladder unit.
The rise-withdraw fram 3 has two pieces of supporting plates 10 for being hinged and being mounted opposite with the upper end of inclined ladder 2, between two pieces of supporting plates 10 Respectively there are two clamping wheel shafts 11 to be connected up and down, the two ends of every clamping wheel shaft 11 are respectively equipped with a clamping wheel 12, clamping wheel 12 Periphery is the concave surface of indent, and eight clamping wheels 12 constitute the slideway 9 being slidably matched with vertical terraced 5 side frame 13.
The upper end of the rise-withdraw fram 3 or the frame of side inclined ladder 2 is provided with lifting pulley 4.
The lower end of the inclined ladder 2 is provided with the lower margin 7 of strip.
Bracing wire 8 is provided between the lower margin 7 and inclined ladder 2, bracing wire 8 is that tool is resilient, and bracing wire 8 is in connection lower margin 7 and tiltedly Extended state is in during body 2.
Vertical terraced 5 upper end is provided with lateral conductor 16, and lateral conductor 16 is that tool is resilient, and lateral conductor 16 is in extended state.
The rise-withdraw fram 3 is provided with transverse axis 17, equipped with the safety hook 18 of the vertical ladder 5 of suspended on transverse axis 17.
The transverse axis 17 of the rise-withdraw fram 3 has two, wherein a top of transverse axis 17 is hinged with insurance turnover panel 19, insures turnover panel 19 width is less than and founds two spacing of side frame 13 of terraced 5 frame, the transverse axis 17 of front end another excessively during insurance 19 horizontal of turnover panel.
The beneficial effects of the invention are as follows:Vertical ladder and double ladder can be raised, while vertical ladder is raised, in order to keep flat Weighing apparatus, also raises double ladder so that whole ladder is more stable, and by lateral conductor and bracing wire be set to elasticity also cause it is whole terraced The structure of son is more stable, and goes for double ladder and stand the rising of ladder.
Brief description of the drawings
Fig. 1 is the front view of the first embodiment;Fig. 2 is the left view of the first embodiment;Fig. 3 is the first embodiment Part double ladder front view;Fig. 4 is the left view of the part double ladder of the first embodiment;Fig. 5 is the first embodiment The vertical ladder of part front view;Fig. 6 is the left view of the vertical ladder of part of the first embodiment;Fig. 7 is the first embodiment The vertical ladder of part top view;Fig. 8 is that the part of the first embodiment founds terraced inserting mode front view;Fig. 9 is the first The working state schematic representation of embodiment;Figure 10 is second front view of embodiment;Figure 11 is that the part of second embodiment hangs The use state front view of hook;Figure 12 is the front view of the third embodiment;Figure 13 is the 4th kind of front view of embodiment.
It is visible in figure:Double ladder 1, inclined ladder 2, expansion bracket 3, lifting pulley 4 founds ladder 5, pull bar 6, lower margin 7, bracing wire 8, slideway 9, supporting plate 10 clamps wheel shaft 11, clamping wheel 12, side frame 13, joint 14, jack 15, lateral conductor 16, transverse axis 17, safety hook 18, insure turnover panel 19.
Specific embodiment
The total design of the present invention is to install to be available for the vertical terraced expansion bracket for sliding in the upper end of double ladder, can both use herringbone trapeziodal modulation Whole height, again can be by the vertical adjustment height of vertical ladder.Four kinds of embodiments are introduced below in conjunction with the accompanying drawings.
The first embodiment:Fig. 1 Fig. 2 describes a kind of reduction ladder, and its main body is by a secondary double ladder 1 and a vertical ladder 5 Composition.Visible with reference to Fig. 3 Fig. 4, the mounting means of vertical ladder 5 is:One is installed between two upper ends of inclined ladder 2 of double ladder 1 to stretch Frame, expansion bracket is provided with slideway 9, and two side frames of the slideway 9 with vertical terraced 5 are slidably matched.Vertical ladder 5 can up and down be stretched in slideway 9 and Adjustment height.Here expansion bracket 3 and slideway 9 can have multiple structural forms, and one kind has been only exemplified by figure.With reference to Fig. 5 Fig. 6 Fig. 7 is visible, and expansion bracket 3 has two pieces to be hinged with the upper end of inclined ladder 2 and the supporting plates 10 that are mounted opposite, between two pieces of supporting plates 10 on Under respectively there are two clamping wheel shafts 11 to be connected, the two ends of every clamping wheel shaft 11 are respectively equipped with a clamping wheel 10, clamping wheel 10 it is outer Week is the concave surface of indent, and eight clamping wheels 10 constitute the slideway 9 being slidably matched with vertical terraced 5 side frame 13.Two sides of vertical ladder 5 Frame 13 can be slided up and down in slideway 9.Lifting pulley 4 is provided with the upper end of expansion bracket 3 or side inclined ladder 2.Disk on lifting pulley 4 Around the vertical ladder 5 of rope one end connection lower end, the other end pulls by people, you can the vertical ladder of control it is flexible.
It is also shown in Fig. 1 Fig. 2 Fig. 3 Fig. 4:The lower end of two inclined ladders 2 of double ladder 1 is provided with the lower margin 7 of strip.Ground Bracing wire 8 is provided between pin 7 and inclined ladder 2, thus strengthens the lateral stability of whole reduction ladder.
As seen from Figure 8, two side frames for founding ladder 5 are respectively arranged at two ends with jack 15 and joint 14, joint 14 and jack 15 Grafting coordinates, and two sections of vertical ladders or the vertical ladder of multistage can be plugged in together.Italic 2 is by two kinds of top section of ladder units, middle section of ladder Unit and tail end section of ladder unit are constituted, and middle section of ladder unit two is respectively equipped with jack 15 and joint 14, and top section of ladder unit sets The jack 15 or joint 14 with middle section of ladder unit matching grafting are equipped with, tail end section of ladder unit is provided with matches somebody with somebody with middle section of ladder unit Close the joint 14 or jack 15 of grafting, the upper end connection top section of ladder unit of middle section of ladder unit, the lower end of middle section of ladder unit Connection tail end section of ladder unit.
When using, as shown in figure 9, two inclined ladders 2 of double ladder 1 are formed separately tripod, and fixed with pull bar 6, It is inserted upwardly into the middle of slideway 9 vertical terraced 5 again, pulls rope to lift vertical ladder 5 by lifting pulley 4.When the vertical ladder of a section is mentioned During extreme higher position, the vertical ladder of another section can also be below patched, until reaching required height, and make a nethermost section vertical Ladder support is on the ground.In order to strengthen resistance to overturning, can be with as shown in figure 9, pulling four lateral conductors on the top of vertical ladder 5 16, the other end of lateral conductor 16 is connected on ground or other fixtures.Experiment shows that the operation height of this reduction ladder is 15 More than rice, compared with existing double ladder, in the case of equal floor space, heighten amplitude and stability and security is aobvious Write and improve, can adapt to the livewire work of various lines.Bracing wire 8 is that tool is resilient, and bracing wire 8 is when lower margin 7 and italic 2 is connected In extended state.Lateral conductor 16 is that tool is resilient, and lateral conductor 16 is in extended state.
Second embodiment:The structural principle of the reduction ladder that Figure 10 is introduced is essentially identical with the first embodiment, and it changes Entering is:Transverse axis 17 is provided with expansion bracket 3, equipped with the safety hook 18 of the vertical ladder 5 of suspended on transverse axis 17.It is visible with reference to Figure 11: The transverse axis 17 can have two, be respectively provided at the both sides of slideway 9, above respectively hang a safety hook 18, when vertical ladder 5 is raised to finger When positioning is put, two safety hooks 18 from the horizontal pan that both sides found ladder to being buckled in, you can the fixed position for founding ladder.Have this Safety hook 18, it is convenient to omit the vertical ladder of a section below.
The third embodiment:The structural principle of the reduction ladder that Figure 12 is introduced is essentially identical with the first embodiment, and it changes Entering is:The transverse axis 17 of expansion bracket 3 has two, is respectively provided at the both sides of slideway 9, wherein a transverse axis top is hinged with insurance turnover panel 19, the width of turnover panel 19 is insured less than two spacing of side frame 13 of vertical ladder, insurance is turned over, the transverse axis of front end another excessively during 19 horizontal.
It is this insurance turnover panel 19 effect be:It is that the front end for insuring turnover panel 19 is lifted by vertical terraced horizontal pan when vertical ladder 5 rises, Do not influence to found terraced stroke.When vertical ladder 5 falls, insurance turnover panel 19 leans on the downward rotation of gravity, front end insertion to stand two sides of ladder Between frame and fall on another transverse axis 17, can stop that the continuation for founding ladder is fallen, so that it is guaranteed that safety.It is of course also possible to utilize Insurance turnover panel 19 realizes the altitude location of vertical ladder 5.
4th kind of embodiment:As shown in figure 13, the characteristics of this reduction ladder combines first two embodiment, was both mounted with Full suspension hook 18, is mounted with to insure turnover panel 19 again, can be used in combination as needed, makes its operating characteristics and security performance more excellent Change.

Claims (8)

1. a kind of reduction ladder, including the double ladder (1) that two inclined ladders are constituted, it is characterised in that:Two of the double ladder (1) are tiltedly One rise-withdraw fram (3) is installed, rise-withdraw fram (3) is provided with and is slidably matched with two side frames (13) of vertical ladder (5) between terraced (2) upper end Slideway (9), the vertical ladder (5) is respectively arranged at two ends with jack (15) and joint (14), italic (2) by two kinds of top section of ladder units, Middle section of ladder unit and tail end section of ladder unit are constituted, and middle section of ladder unit two is respectively equipped with jack (15) and joint (14), are pushed up End section of ladder unit is provided with jack (15) or joint (14) with middle section of ladder unit matching grafting, and tail end section of ladder unit is provided with With the joint (14) or jack (15) of middle section of ladder unit matching grafting, the upper end connection top section of ladder list of middle section of ladder unit Unit, the lower end connection tail end section of ladder unit of middle section of ladder unit.
2. reduction according to claim 1 is terraced, it is characterised in that:The rise-withdraw fram (3) has two pieces to be cut with scissors with inclined ladder (2) upper end The supporting plate (10) for connecting and being mounted opposite, respectively has two clampings wheel shaft (11) to be connected up and down between two pieces of supporting plates (10), every The two ends of clamping wheel shaft (11) are respectively equipped with a clamping wheel (12), and the periphery of clamping wheel (12) is the concave surface of indent, eight clampings Wheel (12) constitutes the slideway (9) being slidably matched with vertical ladder (5) side frame (13).
3. reduction according to claim 1 is terraced, it is characterised in that:The rise-withdraw fram (3) or the upper end of side inclined ladder (2) frame It is provided with lifting pulley (4).
4. reduction according to claim 1 is terraced, it is characterised in that:The lower end of the inclined ladder (2) is provided with the ground of strip Pin (7).
5. reduction according to claim 4 is terraced, it is characterised in that:Bracing wire is provided between the lower margin (7) and inclined ladder (2) (8), bracing wire (8) is that tool is resilient, and bracing wire (8) is in extended state when lower margin (7) and italic (2) are connected.
6. reduction according to claim 1 is terraced, it is characterised in that:Described vertical ladder (5) upper end is provided with lateral conductor (16), tiltedly Bracing wire (16) is that tool is resilient, and lateral conductor (16) is in extended state.
7. reduction according to claim 1 is terraced, it is characterised in that:The rise-withdraw fram (3) is provided with transverse axis (17), transverse axis (17) The upper safety hook (18) equipped with the vertical ladder (5) of suspended.
8. reduction according to claim 1 is terraced, it is characterised in that:The transverse axis (17) of the rise-withdraw fram (3) has two, wherein One transverse axis (17) top is hinged with insurance turnover panel (19), and the width of insurance turnover panel (19) is less than vertical ladder two side frames of (5) frame (13) spacing, the transverse axis (17) of front end another excessively during insurance turnover panel (19) horizontal.
CN201611146370.1A 2016-12-13 2016-12-13 Reduction ladder Pending CN106761358A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611146370.1A CN106761358A (en) 2016-12-13 2016-12-13 Reduction ladder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611146370.1A CN106761358A (en) 2016-12-13 2016-12-13 Reduction ladder

Publications (1)

Publication Number Publication Date
CN106761358A true CN106761358A (en) 2017-05-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611146370.1A Pending CN106761358A (en) 2016-12-13 2016-12-13 Reduction ladder

Country Status (1)

Country Link
CN (1) CN106761358A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109768486A (en) * 2019-01-16 2019-05-17 国网辽宁省电力有限公司鞍山供电公司 Outdoor Trusses For Transformer Substation crossbeam 10kV disconnecting switch electrification direct-connection device and method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101852062A (en) * 2009-11-11 2010-10-06 江苏省电力公司宜兴市供电公司 Insulated lift maintaining platform ladder
US20110088971A1 (en) * 2002-09-23 2011-04-21 Herbert Jaffe Collapsible step and extension ladder
CN105401873A (en) * 2015-12-02 2016-03-16 国家电网公司 Insulating elevator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110088971A1 (en) * 2002-09-23 2011-04-21 Herbert Jaffe Collapsible step and extension ladder
CN101852062A (en) * 2009-11-11 2010-10-06 江苏省电力公司宜兴市供电公司 Insulated lift maintaining platform ladder
CN105401873A (en) * 2015-12-02 2016-03-16 国家电网公司 Insulating elevator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109768486A (en) * 2019-01-16 2019-05-17 国网辽宁省电力有限公司鞍山供电公司 Outdoor Trusses For Transformer Substation crossbeam 10kV disconnecting switch electrification direct-connection device and method

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Application publication date: 20170531

WD01 Invention patent application deemed withdrawn after publication