CN101446175B - Working platform ladder - Google Patents
Working platform ladder Download PDFInfo
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- CN101446175B CN101446175B CN2008101638851A CN200810163885A CN101446175B CN 101446175 B CN101446175 B CN 101446175B CN 2008101638851 A CN2008101638851 A CN 2008101638851A CN 200810163885 A CN200810163885 A CN 200810163885A CN 101446175 B CN101446175 B CN 101446175B
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Abstract
The invention discloses a working platform ladder comprising two ladder butts and two platform parts, wherein, each ladder butt comprises vertical columns and crosspieces, each platform part is a flat plate with side walls at the two sides, each vertical column is provided with a connecting sheet which is articulated with the corresponding side wall, locking devices are further arranged at the junctions of the platform parts and the ladder butts, and each locking device comprises a button, a first compression spring, a positioning pin, a connecting cap, a second compression spring and a positioning hole formed on the inner side surface of the side wall. Compared with the prior art, the working platform ladder reliably locks ladder beds at the left and the right sides relative to a working platform, thereby preventing accidents and leading the use to be safer and more reliable; furthermore, the design of a special hinge device between the two platform parts leads the loading weight of the working platform to be very high, and a user can stand on the working platform with safe and reliable walking and operation.
Description
Technical field
The utility model relates to a kind of ladder, relates in particular to a kind of workbench ladder of making the work platform.
Background technology
Traditional ladder or extension ladder in the market all include two vertical rods and are erected at two crosspieces between the vertical rod, and they can only uprightly use, and the simple function of ascending a height also promptly only is provided.Yet, when ladder during in building, finishing, advertisement, the actual use in home dwelling field, after the user often need ascend a height by ladder, stand in the operation that a certain height and position carries out the long period, and the ladder that can only uprightly use is owing to can't provide a job platform, can not be applicable to this situation preferably, not satisfy the actual needs of ascend operation.
Therefore, some can provide operating platform and the transversely movable ladder of user is invented, as the patent No. is the Chinese utility model application " Foldable multifunctional ladder " of ZL200620055768.X (notification number is CN2869275Y), discloses a kind of ladder with multiple function of use.This comprises the linkage between four sections ladders and the adjacent ladder, ladder comprises two vertical rods, be provided with several crosspieces between two vertical rods, two sections ladder bottoms that are in two ends are respectively arranged with feet, ladder in the middle of being positioned at is provided with the pedal of at least one blowing or injection moulding, and the plastics pedal offers the limited impression that cooperates with treadle over against the side of ladder.This shows, this folding ladder is being used as under the working platform state, two sections ladders that can be used as foot of ladder and central authorities two sections are stood for users and are adopted linkage to be connected between the ladder, can be used as between two sections ladders of central authorities of working platform and also adopt so linkage, and in this patent documentation and the concrete structure of unexposed linkage, relatively poor based on linkage positioning performance in the market, make that the bearing capacity of working platform is very limited, and, in case carrying overweight object, the user carries out operation, breakage very easily appears in linkage, brings unsafe factor to use.
Summary of the invention
First technical problem to be solved by this invention is to provide a kind of use more safe and reliable workbench ladder at above-mentioned prior art present situation, it can be with the ladder of the left and right sides relative working platform positive lock, thereby the accident of preventing has also improved the bearing capacity of workbench ladder.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: this workbench ladder, include the terrace part as working platform of two sections foot of ladders and two sections adjacent settings, wherein, every section foot of ladder comprises the crosspiece between two root posts and the column, every section foot of ladder is hinged together with corresponding terrace part, and be hinged together by articulated mounting between two sections terrace parts, it is characterized in that:
Every section terrace part is the flat board that both sides all have sidewall, and every root post all is being connected with a connecting piece with end that corresponding platform partly is connected, and the sidewall on each brace and the corresponding platform part is hinged;
And, junction at every section terrace part and corresponding foot of ladder also is provided with a locking device, this locking device comprise spacingly be arranged on button on the terrace part sidewall, be set in the first outer stage clip of button, be arranged on alignment pin on the brace, be set in outside the alignment pin and relatively brace be fixedly coupled cap, be set in the second outer stage clip of alignment pin and be opened in locating hole on the terrace part inside sidewalls face;
Wherein, first end of this button runs through the sidewall of this terrace part and is exposed to outside the lateral surface of sidewall, and it second is rectified described locating hole;
The two ends of this first stage clip offset with the bulge loop and the locating hole inside edge of this button periphery respectively;
First end of this alignment pin runs through this attachment cap, and its second end runs through this brace and is exposed to outside this brace outside, and over against described locating hole;
The two ends of this second stage clip offset with the inboard of this attachment cap and the flange of alignment pin periphery respectively.
This locking device is in same center by locating hole, alignment pin, button three wherein, press and be exposed to outer button first end of sidewall, second end of button just can touch second end that is inserted into the alignment pin in the locating hole, thereby promoting alignment pin moves to the inside sidewalls direction, make second end of alignment pin detach locating hole on the sidewall, like this, the brace on the column just can be relative with the sidewall of terrace part movable, enters the SBR of folding step.
Spacing being arranged on of described button can be adopted existing various technology on the terrace part sidewall, but for making apparatus structure simpler, be easier to assembling, can be provided with the locking bar of a surperficial evagination on the medial surface of described terrace part sidewall, be arranged with a limited cover that is connected with this locking bar outside the described button, first end of this button stretches out outside limited cover, and the bulge loop on the button just in time is stuck in the inboard of limited cover, and described locating hole just is opened on the medial surface of this locking bar, the design of the locking bar of the surperficial evagination by surperficial opposing sidewalls also makes the locator card of the relative terrace part sidewall of alignment pin establish more light, easy.
When locking device being entered lock-out state for the brace opposing sidewalls is rotated, alignment pin second end that is exposed to the brace outside can be lighter, along the sliding surface that carries out the transition to locking bar, and entering locating hole smoothly, the edge on described locking bar surface can have the domatic of inclination.
The fixing structure of the relative brace of described attachment cap can adopt existing various technology, but for making apparatus structure simpler, be easier to assembling, can be connected with the fixture of a hollow on the medial surface of described brace, described attachment cap just is connected an end of this fixture.
As further improvement, described foot of ladder is good with extension type, so that the height of working platform can be made appropriate regulation as required, and the ladder of extension type can adopt existing various technology, can be the patent " telescopic ladder " of ZL200620140435.7 (notification number is 200978618Y) as the patent No. also referring to the previous many patents that propose of the applicant.
After two sections terrace parts are launched, the no lug boss in surface and prevent that foreign matter from tripping, thereby can provide one neatly, level and smooth working platform, articulated mounting between described two sections terrace parts can include connecting rod and the bearing pin on each sidewall that is hinged on every section terrace part, the end overlapping of per two adjacent connecting rods is passed at the two ends of this bearing pin respectively, like this, four connecting rods can this bearing pin be that the center rotates, every section terrace part connecting rod relatively like this, bearing pin rotates, thereby two sections terrace parts can be drawn close mutually at last, reach the folding purpose.
Two sections terrace parts are after expansion, close up mutually its adjacent end, conflict and a complete working platform can be provided, for making this working platform that provides can be more firm, two sections terrace parts also can have end face on adjacent end, and, the hinged inside of one of them terrace part has the end to have the fastener of trip, be under the deployed condition at two sections terrace parts, trip on this fastener just in time is stuck in the inboard of another terrace part end face, so design, just can pass through to strengthen the conflict face area of two sections terrace parts and the snap effect of fastener, and improve the steadiness of working platform.
Compared with prior art, the invention has the advantages that: by terrace part being designed to a simple flat plate, and between the brace on dull and stereotyped and the foot of ladder central post, locking device is set, the relative working platform positive lock of ladder with the left and right sides, thereby the accident of preventing is used more safe and reliable; And by the design of the special articulated mounting between two sections terrace parts, the bearing capacity of the working platform that make to form is also very high, and the user stand on these two sections formed working platformes of terrace part, and walking, operation are all as safe as a house, reliable; Simultaneously, workbench ladder of the present invention, it is all very convenient, practical to operate, collect, carry transportation.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention;
Fig. 2 is the structural representation after the complete folding of the embodiment of the invention;
Fig. 3 is the local enlarged diagram of looking up from the bottom among Fig. 1;
Fig. 4 be among Fig. 3 A-A to sectional view;
Fig. 5 is pressed the schematic diagram that promotes alignment pin for button among Fig. 4.
The specific embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
As Fig. 1～Figure 5 shows that a preferred embodiment of the present invention.
This workbench ladder, include the terrace part 3 as working platform N of two sections extension type foot of ladder M and two sections adjacent settings, every section foot of ladder M comprises the crosspiece 2 between two root posts 1 and the column 1, every section foot of ladder M is hinged together with corresponding terrace part 3, and is hinged together by articulated mounting J between two sections terrace parts 3;
Every section terrace part 3 is the flat board that both sides all have sidewall 31, every root post 1 all is connected with a connecting piece 11 in the end that is connected with corresponding platform part 3, sidewall 31 on each brace 11 and the corresponding platform part 3 is hinged, and every section foot of ladder M and corresponding terrace part 3 are hinged together;
And, also be provided with a locking device S in the junction of every section terrace part 3 and corresponding foot of ladder M, in the present embodiment, be provided with two locking device S altogether, be separately positioned in every section terrace part 3 and the corresponding foot of ladder 4 wherein between the root post 1;
Be provided with the locking bar 32 of a surperficial evagination on the medial surface of every section terrace part 3 sidewalls 31 at corresponding locking device S place, the edge on these locking bar 32 surfaces has the domatic 32b of inclination;
As shown in Figure 4 and Figure 5, this locking device S comprise spacingly be arranged on button 4 on terrace part 3 sidewalls 31, be set in the first outer stage clip 71 of button 4, be arranged on alignment pin 5 on the corresponding brace 11, be set in outside the alignment pin 5 and relatively brace 11 be fixedly coupled cap 6, be set in the second outer stage clip 72 of alignment pin 5 and be opened in locating hole 32a on the medial surface of locking bar 32;
Wherein, be arranged with a limited cover 73 that is threaded with this locking bar 32 outside the described button 4, first end 41 of this button 4 runs through the sidewall 31 of terrace part 3 and stretches out outside limited cover 73, and be exposed to outside the lateral surface of sidewall 31, and the bulge loop on the button 4 43 just in time is stuck in the inboard of limited cover 73 and makes button 4 spacing, and second end 42 of this button 4 is over against described locating hole 32a;
The two ends of this first stage clip 71 respectively with the bulge loop 43 of these button 4 peripheries and locating hole 32a inner side edge along offseting;
The two ends of this second stage clip 72 offset with the inboard of this attachment cap 6 and the flange 53 of alignment pin 5 peripheries respectively.
As shown in Figure 4, this locking device is inserted into the locating hole 32a that is positioned on the locking bar 32 because of 5 second ends 52 of the alignment pin on the brace 11, and make sidewall 31 activities of locking bar 32 and terrace part 3 relatively of brace 11 and column 1, reach the reliable location of foot of ladder M and terrace part 3, at this moment, whole workbench ladder launches, the location, is in the state of can using safely, referring to Fig. 1; In the time of need unlocking, press button 4 first ends 41 that are exposed to outside the sidewall 31, second end 42 of button 4 just can touch the alignment pin 5 in the locating hole 32a, move thereby promote alignment pin 5 side direction in sidewall 31, make second end 52 of alignment pin 5 detach locating hole 32a, referring to Fig. 5, like this, brace 11 on the column 1 just can be relative with the sidewall 31 of terrace part 3 movable, this workbench ladder just fully folding get up, as shown in Figure 2.
And the articulated mounting J between described two sections terrace parts 3 includes connecting rod 33 and a bearing pin 8 on each sidewall 31 that is hinged on every section terrace part 3, and the end overlapping of per two adjacent connecting rods 33 is passed at the two ends of this bearing pin 8 respectively, referring to Fig. 1;
Two sections terrace parts 3 also have end face 34 on adjacent end, and, the hinged inside of one of them terrace part 3 has the end to have the fastener 9 of trip 91, be under the deployed condition at two sections terrace parts 3, trip 91 on this fastener 9 just in time is stuck in the inboard of another terrace part 3 end faces 34, referring to Fig. 2.
Claims (7)
1. workbench ladder, include the terrace part as working platform (N) (3) of two sections foot of ladders (M) and two sections adjacent settings, wherein, every section foot of ladder (M) comprises the crosspiece (2) between two root posts (1) and the column (1), every section foot of ladder (M) is hinged together with corresponding terrace part (3), and be hinged together by articulated mounting (J) between two sections terrace parts (3), it is characterized in that:
Every section terrace part (3) is the flat board that both sides all have sidewall (31), every root post (1) all is connected with a connecting piece (11) in the end that is connected with corresponding platform part (3), and the sidewall (31) on each brace (11) and the corresponding platform part (3) is hinged;
And, junction at every section terrace part (3) and corresponding foot of ladder (M) also is provided with a locking device (S), this locking device (S) comprise spacingly be arranged on button (4) on terrace part (3) sidewall (31), be set in outer first stage clip (71) of button (4), be arranged on alignment pin (5) on the brace (11), be set in outside the alignment pin (5) and relatively brace (11) be fixedly coupled cap (6), be set in outer second stage clip (72) of alignment pin (5) and be opened in locating hole (32a) on terrace part (3) sidewall (31) medial surface;
Wherein, first end (41) of this button (4) runs through the sidewall (31) of this terrace part (3) and is exposed to outside the lateral surface of sidewall (31), and its second end (42) is over against described locating hole (32a);
The two ends of this first stage clip (71) offset with locating hole (32a) inside edge with the peripheral bulge loop (43) of this button (4) respectively;
First end (51) of this alignment pin (5) runs through this attachment cap (6), and its second end (52) runs through this brace (11) and outside being exposed to outside this brace (11), and over against described locating hole (32a);
The two ends of this second stage clip (72) offset with the inboard of this attachment cap (6) and the flange (53) of alignment pin (5) periphery respectively.
2. workbench ladder according to claim 1, it is characterized in that: the medial surface of described terrace part (3) sidewall (31) is provided with the locking bar (32) of a surperficial evagination, be arranged with a limited cover (73) that is connected with this locking bar (32) outside the described button (4), first end (41) of this button (4) stretches out outside limited cover (73), and the bulge loop (43) on the button (4) just in time is stuck in the inboard of limited cover (73) and makes button (4) spacing, and described locating hole (32a) just is opened on the medial surface of this locking bar (32).
3. workbench ladder according to claim 2 is characterized in that: the edge on described locking bar (32) surface has domatic (32b) of inclination.
4. workbench ladder according to claim 1 is characterized in that: be connected with the fixture (74) of a hollow on the medial surface of described brace (11), described attachment cap (6) just is connected an end of this fixture (74).
5. workbench ladder according to claim 1 is characterized in that: described two sections foot of ladders (M) are for extension type.
6. according to the described workbench ladder of arbitrary claim in the claim 1 to 5, it is characterized in that: the articulated mounting (J) between described two sections terrace parts (3) includes a connecting rod (33) and the bearing pin (8) on each sidewall (31) that is hinged on every section terrace part (3), and the end overlapping of per two adjacent connecting rods (33) is passed at the two ends of this bearing pin (8) respectively.
7. workbench ladder according to claim 6, it is characterized in that: two sections terrace parts (3) also have end face (34) on adjacent end, and, the hinged inside of one of them terrace part (3) has the end to have the fastener (9) of trip (91), be under the deployed condition at two sections terrace parts (3), the trip (91) on this fastener (9) just in time is stuck in the inboard of another terrace part (3) end face (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101638851A CN101446175B (en) | 2008-12-23 | 2008-12-23 | Working platform ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101638851A CN101446175B (en) | 2008-12-23 | 2008-12-23 | Working platform ladder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101446175A CN101446175A (en) | 2009-06-03 |
| CN101446175B true CN101446175B (en) | 2011-08-03 |
Family
ID=40742031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101638851A Active CN101446175B (en) | 2008-12-23 | 2008-12-23 | Working platform ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101446175B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088582B (en) * | 2014-06-26 | 2017-01-18 | 四川蓝天网架钢结构工程有限公司 | Multi-functional foldable ladder |
| CN104332896A (en) * | 2014-12-02 | 2015-02-04 | 国家电网公司 | Working platform for high-altitude overhauling of electric transmission lines |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2280153Y (en) * | 1997-04-09 | 1998-04-29 | 谭素芬 | Combination type ladder with plat form |
| CN2505579Y (en) * | 2001-08-15 | 2002-08-14 | 张国安 | Gabled tower ladder |
| CN101050687A (en) * | 2007-05-22 | 2007-10-10 | 王克诚 | Telescopic ladder and its vertical combined ladder, platform high stool and herringbone ladder |
| WO2007089137A3 (en) * | 2006-02-03 | 2007-11-29 | Lampe Holding Bv | A plastic platform for a foldable ladder, a ladder with telescopical sections and a ladder with a stabilizer beam |
| CN201339433Y (en) * | 2008-12-23 | 2009-11-04 | 王万兴 | Work platform ladder |
-
2008
- 2008-12-23 CN CN2008101638851A patent/CN101446175B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2280153Y (en) * | 1997-04-09 | 1998-04-29 | 谭素芬 | Combination type ladder with plat form |
| CN2505579Y (en) * | 2001-08-15 | 2002-08-14 | 张国安 | Gabled tower ladder |
| WO2007089137A3 (en) * | 2006-02-03 | 2007-11-29 | Lampe Holding Bv | A plastic platform for a foldable ladder, a ladder with telescopical sections and a ladder with a stabilizer beam |
| CN101050687A (en) * | 2007-05-22 | 2007-10-10 | 王克诚 | Telescopic ladder and its vertical combined ladder, platform high stool and herringbone ladder |
| CN201339433Y (en) * | 2008-12-23 | 2009-11-04 | 王万兴 | Work platform ladder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101446175A (en) | 2009-06-03 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NINGBO XINGFU TOOL CO., LTD. Free format text: FORMER OWNER: WANG WANXING Effective date: 20120427 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120427 Address after: 315600 No. 9, outer ring road, Ninghai County, Zhejiang Province Patentee after: NINGBO XINGFU TOOLS CO., LTD. Address before: 315600, Ningbo, Zhejiang Province, 9 outer ring road, Ninghai Fu Tools Co., Ltd. Patentee before: Wang Wanxing |