CN104775750A - Scissor ladder - Google Patents
Scissor ladder Download PDFInfo
- Publication number
- CN104775750A CN104775750A CN201510161964.9A CN201510161964A CN104775750A CN 104775750 A CN104775750 A CN 104775750A CN 201510161964 A CN201510161964 A CN 201510161964A CN 104775750 A CN104775750 A CN 104775750A
- Authority
- CN
- China
- Prior art keywords
- scissor
- operated
- foot
- low
- riding
- 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
- E06C1/383—Foldable ladders in which the longitudinal members are brought together on folding
- E06C1/3835—Foldable ladders in which the longitudinal members are brought together on folding having collapsible steps comprising a hinge in their central part
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
The invention provides a scissor ladder comprising at least two scissor units, wherein each scissor unit comprises a first scissor and a second scissor; the first scissor is of a central symmetry structure and comprises a first high pedal, a first low pedal and a first connecting part connected between the first high pedal and the first low pedal; the second scissor is of a central symmetry structure and comprises a second high pedal, a second low pedal and a second connecting part connected between the second high pedal and the second low pedal; the middle part of the first connecting part of one first scissor is hinged with the middle part of the second connecting part of one second scissor through a first limiting hinged part and a second limiting hinged part to form a scissor unit; and the upper scissor unit is connected with the lower scissor unit. The scissor ladder can be folded so as to be stored and carried.
Description
Technical field
The present invention relates to cat ladder field, be specifically related to a kind of scissor-type ladder.
Background technology
Cat ladder is widely used in all trades and professions, and operating personnel can be helped to climb high-rise working from lower.The ladder of prior art, structure is simple, but himself cannot fold, and thus needs larger parking space, is also unfavorable for mobile carrying.In some occasion, ladder needs often to need mobile to change operating location, such as road administration or power engineering operation, and it is extremely inconvenient that operating personnel shoulders one large ladder operation.
Being not difficult to find out, also there is certain defect in prior art.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of scissor-type ladder, collapsible to deposit and to carry.
For achieving the above object, the present invention is by the following technical solutions:
A kind of scissor-type ladder, comprises at least two scissor unit; Each scissor unit comprises the first scissor and the second scissor;
First scissor is centrosymmetric structure, first scissor comprise first high foot-operated, first low foot-operated and be connected to first high foot-operated and first low foot-operated between the first connecting portion, first height is foot-operated to be arranged in parallel with the first low riding, first high riding is positioned at a high position, first low riding is positioned at low level, first high riding is equipped with hinge hole with the first low foot-operated end, and the middle part of the first connecting portion is provided with the first spacing articulated section;
Second scissor is centrosymmetric structure, second scissor comprise second high foot-operated, second low foot-operated and be connected to second high foot-operated and second low foot-operated between the second connecting portion, second height is foot-operated to be arranged in parallel with the second low riding, second high riding is positioned at a high position, second low riding is positioned at low level, second high riding is equipped with hinge hole with the second low foot-operated end, and the middle part of the second connecting portion is provided with the second spacing articulated section;
In the middle part of first connecting portion of first scissor with the second connecting portion of second scissor in the middle part of by the hinged composition in the first spacing articulated section and the second spacing articulated section scissor unit, and when first high foot-operated, second high foot-operated, first low ride and second low ride be placed in horizontal position time the first spacing articulated section and the second spacing articulated section offset; At least two scissor unit are interconnected, and the first low riding of the first scissor of superposed scissor unit is ridden hinged with the second height of the second scissor of the scissor unit being positioned at bottom; Second low riding of the second scissor of superposed scissor unit is ridden hinged with the first height of the first scissor of the scissor unit being positioned at bottom.
Further, the two ends of described first scissor and the second scissor are equipped with fillet.
Further, the bottom surface of described first scissor and the second scissor is equipped with rubber cushion.
Further, the first connecting portion of described first scissor and first high foot-operated and first to be lowly foot-operatedly obliquely installed; Second connecting portion of described second scissor and the second height are ridden and the second high riding is obliquely installed.
Further, the first connecting portion of described first scissor is high foot-operated with first and first lowly foot-operatedly vertically to arrange; Second connecting portion of described second scissor is foot-operated with the second height and the second height is foot-operated vertical is arranged.
Further, described first spacing articulated section is fan-shaped flange, and fan-shaped circle centre position is provided with hinge hole; Described second spacing articulated section is fan-shaped flange, and fan-shaped circle centre position is provided with hinge hole; When first high foot-operated, second high foot-operated, first low foot-operated and second low foot-operated be placed in horizontal position time the fan-shaped flange side of the first spacing articulated section and the fan-shaped flange side of the second spacing articulated section offset.
A kind of scissor-type ladder provided by the present invention, has the following advantages:
Can stored collapsed, save parking space, carrying of being more convenient for is mobile, is particularly useful for the occasion needing frequent ladder movement;
Simple to operate, high safety;
Structure is simple, light portable.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The overall structure schematic diagram of a kind of scissor-type ladder that Fig. 1 provides for the present embodiment.
Fig. 2 is the structural representation of the first scissor.
Fig. 3 is the folded state schematic diagram of scissor-type ladder.
Description of reference numerals:
1, the first scissor 2, second scissor
3, the first low foot-operated 4, second height is foot-operated
5, the first spacing articulated section of connecting portion 6, first
Detailed description of the invention
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the embodiment of the present invention and accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described.It should be noted that, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment
Refer to Fig. 1 and Fig. 2, embodiments provide a kind of scissor-type ladder, comprise at least two scissor unit; Each scissor unit comprises the first scissor 1 and the second scissor 2;
First scissor 1 is centrosymmetric structure, the first connecting portion 5 that first scissor 1 comprises first high foot-operated 4, first low foot-operated 3 and is connected between first high foot-operated 4 and first low foot-operated 3, first high foot-operated 4 and first low foot-operated 3 be arranged in parallel, first high foot-operated 4 is positioned at a high position, first low foot-operated 3 is positioned at low level, the first high foot-operated 4 and first low end of foot-operated 3 is equipped with hinge hole, and the middle part of the first connecting portion 5 is provided with the first spacing articulated section 6;
Second scissor 2 is centrosymmetric structure, second scissor 2 comprise second high foot-operated, second low foot-operated and be connected to second high foot-operated and second low foot-operated between the second connecting portion, second height is foot-operated to be arranged in parallel with the second low riding, second high riding is positioned at a high position, second low riding is positioned at low level, second high riding is equipped with hinge hole with the second low foot-operated end, and the middle part of the second connecting portion is provided with the second spacing articulated section;
In the middle part of first connecting portion 5 of first scissor 1 with the second connecting portion of second scissor 2 in the middle part of by the first spacing articulated section 6 and the hinged composition in the second spacing articulated section scissor unit, and when first high foot-operated 4, second high foot-operated, first low ride 3 and second low ride be placed in horizontal position time the first spacing articulated section 6 and the second spacing articulated section offset; At least two scissor unit are interconnected, the first scissor 1 of superposed scissor unit first low foot-operated 3 with the second scissor 2 second high foot-operated hinged of scissor unit being positioned at bottom; Second low foot-operated the first scissor 1 first high foot-operated 4 hinged of scissor unit with being positioned at bottom of the second scissor 2 of superposed scissor unit.
The maximum advantage of the present invention is portability, and Total Product utilizes the characteristic of scissors mechanism, can fold layer by layer, is finally reduced to the size of a traveling bag, is to be placed in traveling bag the ladder carried and carry.
First scissor 1 and the second scissor 2 actual be symmetrical parts.When organizing work, being positioned at the first high foot-operated 4 overlapping with the second low foot-operated level of superposed second scissor 2 of the first scissor 1 of bottom, forming one grade of complete riding.In like manner, be positioned at the second scissor 2 of bottom second high foot-operated with superposed first scissor 1 first low foot-operated 3 also level overlapping form one grade foot-operated.Operating personnel just rides along every grade when climbing and upwards climbs length by length, and method and the common ladder of use are as good as.First spacing articulated section 6 of the first scissor 1 and the second spacing articulated section of the second scissor 2 offset when ladder launches completely, thus limit further rotating between the first scissor 1 and the second scissor 2, ensure ladder stability in the course of the work.
Material for the first scissor 1 and the second scissor 2 does not limit, and can select different raw materials, the solid wood etc. that such as light solid highstrenghtpiston or insulating properties attractive in appearance are strong according to the occasion of work, therefore not to repeat here.
As preferably, the two ends of described first scissor 1 and the second scissor 2 are equipped with fillet.Avoid the scratching to human body in use procedure thus, prevent injured.
As preferably, the bottom surface of described first scissor 1 and the second scissor 2 is equipped with rubber cushion.Because the danger of shearing likely appears in ladder the first scissor 1 and second scissor 2 in the folding process of storage, therefore the preferred bottom surface at the first scissor 1 and the second scissor 2 establishes rubber cushion to protect.
As preferably, the first connecting portion 5 and first high foot-operated 4 and first low foot-operated 3 of described first scissor 1 is obliquely installed; Second connecting portion of described second scissor 2 and the second height are ridden and the second high riding is obliquely installed.Under this scheme, the meander line structure of the first scissor 1 and the second scissor 2 is comparatively mild, helps the whole height of ladder when lowering storage.
And as another kind of preferred version, the first connecting portion 5 of described first scissor 1 and first high foot-operated 4 and first low foot-operated 3 is vertically arranged; Second connecting portion of described second scissor 2 is foot-operated with the second height and the second height is foot-operated vertical is arranged.Under this scheme, when ladder is organized work, the first connecting portion 5 and the second connecting portion can be completely vertically superposed, can reduce consumptive material, increase foot-operated width.
Above-mentioned two schemes is actual there is no dividing of quality, can need freely select according to design.
As preferably, described first spacing articulated section 6 is fan-shaped flange, and fan-shaped circle centre position is provided with hinge hole; Described second spacing articulated section is fan-shaped flange, and fan-shaped circle centre position is provided with hinge hole; When first high foot-operated 4, second high foot-operated, first low foot-operated 3 and second low foot-operated be placed in horizontal position time the fan-shaped flange side of the first spacing articulated section 6 and the fan-shaped flange side of the second spacing articulated section offset.
The effect of the first spacing articulated section 6 and the second spacing articulated section is the spacing hinged of the first scissor 1 and the second scissor 2, prevent the first scissor 1 and the second scissor 2 milli unrestrictedly 360 ° hinged.And the preferred version adopted in the present invention the first articulated section and the second articulated section is made as fan-shaped flange, respectively with the first scissor 1 and the second scissor 2 one-body molded, processing one-time-reach-place.
A kind of scissor-type ladder provided by the invention, can stored collapsed, saves parking space, and carrying of being more convenient for is mobile, is particularly useful for the occasion needing frequent ladder movement, and the volume after folding is extremely tiny, even can put into inside traveling bag and carry.And Total Product is simple to operate, can safe spacing, thus high safety.Meanwhile, product structure is simple, and component is few, very light.
The above embodiment only have expressed one embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (6)
1. a scissor-type ladder, is characterized in that: comprise at least two scissor unit; Each scissor unit comprises the first scissor and the second scissor;
First scissor is centrosymmetric structure, first scissor comprise first high foot-operated, first low foot-operated and be connected to first high foot-operated and first low foot-operated between the first connecting portion, first height is foot-operated to be arranged in parallel with the first low riding, first high riding is positioned at a high position, first low riding is positioned at low level, first high riding is equipped with hinge hole with the first low foot-operated end, and the middle part of the first connecting portion is provided with the first spacing articulated section;
Second scissor is centrosymmetric structure, second scissor comprise second high foot-operated, second low foot-operated and be connected to second high foot-operated and second low foot-operated between the second connecting portion, second height is foot-operated to be arranged in parallel with the second low riding, second high riding is positioned at a high position, second low riding is positioned at low level, second high riding is equipped with hinge hole with the second low foot-operated end, and the middle part of the second connecting portion is provided with the second spacing articulated section;
In the middle part of first connecting portion of first scissor with the second connecting portion of second scissor in the middle part of by the hinged composition in the first spacing articulated section and the second spacing articulated section scissor unit, and when first high foot-operated, second high foot-operated, first low ride and second low ride be placed in horizontal position time the first spacing articulated section and the second spacing articulated section offset; At least two scissor unit are interconnected, and the first low riding of the first scissor of superposed scissor unit is ridden hinged with the second height of the second scissor of the scissor unit being positioned at bottom; Second low riding of the second scissor of superposed scissor unit is ridden hinged with the first height of the first scissor of the scissor unit being positioned at bottom.
2. scissor-type ladder according to claim 1, is characterized in that: the two ends of described first scissor and the second scissor are equipped with fillet.
3. scissor-type ladder according to claim 1, is characterized in that: the bottom surface of described first scissor and the second scissor is equipped with rubber cushion.
4. scissor-type ladder according to claim 1, is characterized in that: the first connecting portion of described first scissor and the first height are ridden and the first low riding is obliquely installed; Second connecting portion of described second scissor and the second height are ridden and the second high riding is obliquely installed.
5. scissor-type ladder according to claim 1, is characterized in that: the first connecting portion of described first scissor is high foot-operated and first lowly foot-operatedly vertically to arrange with first; Second connecting portion of described second scissor is foot-operated with the second height and the second height is foot-operated vertical is arranged.
6. scissor-type ladder according to claim 1, is characterized in that: described first spacing articulated section is fan-shaped flange, and fan-shaped circle centre position is provided with hinge hole; Described second spacing articulated section is fan-shaped flange, and fan-shaped circle centre position is provided with hinge hole; When first high foot-operated, second high foot-operated, first low foot-operated and second low foot-operated be placed in horizontal position time the fan-shaped flange side of the first spacing articulated section and the fan-shaped flange side of the second spacing articulated section offset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510161964.9A CN104775750B (en) | 2015-04-06 | 2015-04-06 | A kind of scissor-type ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510161964.9A CN104775750B (en) | 2015-04-06 | 2015-04-06 | A kind of scissor-type ladder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104775750A true CN104775750A (en) | 2015-07-15 |
| CN104775750B CN104775750B (en) | 2016-08-24 |
Family
ID=53617475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510161964.9A Active CN104775750B (en) | 2015-04-06 | 2015-04-06 | A kind of scissor-type ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104775750B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114148961A (en) * | 2021-11-12 | 2022-03-08 | 安徽明诚电力设备安装有限公司 | Adjustable device for power equipment maintenance |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH554998A (en) * | 1972-10-31 | 1974-10-15 | Arcia Sa | ECHELLE PLIANTE. |
| US4981195A (en) * | 1989-09-29 | 1991-01-01 | Merrick Harry G | Alternating tread ladder apparatus |
| EP0733774A1 (en) * | 1995-03-21 | 1996-09-25 | Renato Mastella | Easily assembled modular element metal ladder |
| EP0942144A2 (en) * | 1998-03-12 | 1999-09-15 | Massimo Mastella | Modular step unit for prefabricated self-supporting ladders and a self-supporting ladder made thereby |
| BE1014667A6 (en) * | 2002-02-27 | 2004-03-02 | Steels Luc | Staircase with two rows of steps, has steps arranged so that each step in the row is followed by another step belonging to same row |
| CN204511279U (en) * | 2015-04-06 | 2015-07-29 | 陈超 | A kind of scissor-type ladder |
-
2015
- 2015-04-06 CN CN201510161964.9A patent/CN104775750B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH554998A (en) * | 1972-10-31 | 1974-10-15 | Arcia Sa | ECHELLE PLIANTE. |
| US4981195A (en) * | 1989-09-29 | 1991-01-01 | Merrick Harry G | Alternating tread ladder apparatus |
| EP0733774A1 (en) * | 1995-03-21 | 1996-09-25 | Renato Mastella | Easily assembled modular element metal ladder |
| EP0942144A2 (en) * | 1998-03-12 | 1999-09-15 | Massimo Mastella | Modular step unit for prefabricated self-supporting ladders and a self-supporting ladder made thereby |
| BE1014667A6 (en) * | 2002-02-27 | 2004-03-02 | Steels Luc | Staircase with two rows of steps, has steps arranged so that each step in the row is followed by another step belonging to same row |
| CN204511279U (en) * | 2015-04-06 | 2015-07-29 | 陈超 | A kind of scissor-type ladder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114148961A (en) * | 2021-11-12 | 2022-03-08 | 安徽明诚电力设备安装有限公司 | Adjustable device for power equipment maintenance |
| CN114148961B (en) * | 2021-11-12 | 2023-09-12 | 安徽明诚电力设备安装有限公司 | Adjustable device for power equipment maintenance |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104775750B (en) | 2016-08-24 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170612 Address after: Yu Dong people of South Haimen 226100 Jiangsu city of Nantong province No. 165 Patentee after: Haimen he d Intellectual Property Service Co. Ltd. Address before: 510070 Liwan District, Guangzhou, Zhongshan, No. eight road, No. two, ladder 801, 31 Patentee before: Chen Chao |