CN2813867Y - Improved floding ladder hinge device - Google Patents
Improved floding ladder hinge device Download PDFInfo
- Publication number
- CN2813867Y CN2813867Y CN 200520026920 CN200520026920U CN2813867Y CN 2813867 Y CN2813867 Y CN 2813867Y CN 200520026920 CN200520026920 CN 200520026920 CN 200520026920 U CN200520026920 U CN 200520026920U CN 2813867 Y CN2813867 Y CN 2813867Y
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- CN
- China
- Prior art keywords
- flap
- pivot
- slideway
- lower cover
- baffle plate
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to an improved hinge device of a folding ladder, which comprises a first hinge plate and a second hinge plate which are connected by a pivot shaft and can be rotated correspondingly, wherein the first hinge plate is hinged with the second hinge plate by a position group with the pivot shaft through a pivot shaft hole. The first hinge plate is formed by buckling a first upper cover and a first lower cover, and a guiding component and a crank part of the second hinge plate are arranged in a hollow chamber. A slideway for containing a stop dog of a guiding group to slide is arranged and matched on the first hinge plate. A contacting seat of the guiding group is arranged in the hollow chamber of the first hinge plate and is adjacent to the slideway of the first lower cover or the first upper cover correspondingly to the pivot shaft hole. The second hinge plate is formed by buckling a second upper cover and a second lower cover, and a hollow chamber for containing a positioning component of the pivot shaft is formed. A contacting seat of a positioning group matched with the positioning group of the pivot shaft is arranged in the hollow chamber. A stop rabbet matched with a fin part of a baffle plate of the positioning group of the pivot shaft is arranged on the second hinge plate, and the baffle plate can be clamped by the stop rabbet. A shifting handle of a pull handle, which drives the stop dog of the guiding group to slide along the slideway, is assembled on a hinge plate by the pivot shaft.
Description
Technical field
The utility model belongs to the structure member of ladder, especially the hinge arrangement of folded ladder.
Background technology
Known ladder technical development is very fast, relates to a kind of a kind of hinge that is used for folding ladder of hinge that is used for folding ladder as disclosed Chinese patent 02107993.5, and it comprises: first articulated elements with main dish; Second articulated elements with secondary dish; Locking device has the button connecting pin, helical spring and rectangle clamping block, and be used to control the locking and pressurizing control device that locks or unclamp locking device.First and second articulated elementss are combined together by the central axis common axis.Between the main dish that the pair of parallel that makes the secondary dish of second articulated elements insert first articulated elements is separated.Main dish has the slotted eye that is used to insert locking device.On the surface of dish, be provided with the first and second protruding arch retainers, so that be fitted to each other.Be formed with a side of a plurality of fore shafts slotted eye in main dish around the periphery of secondary dish, elasticity is equipped with a locking and pressurizing control device that is used for drive unit.
And for example disclosed Chinese patent 200420038624.4 is used for the locating hinge structure of folding ladder, the right linking arm and the left linking arm that comprise hollow, right linking arm end is provided with round casing, linking arm end, a left side is provided with disc, disc is matched with in the round casing, and be rotatably connected by main shaft and round casing, the circumferential edges of disc is provided with some positioning ports, other is provided with a locating piece that can be matched with in the positioning port, also comprise a crank, first end of this crank is rotationally connected with the end of locating piece, the middle part of crank is rotationally connected with in the right linking arm by a bearing pin, other has a linking arm, first end of this linking arm and second end of crank flexibly connect, and the middle part of linking arm is sheathed on the main shaft, and second end of linking arm is provided with outward extending convex extension part, also being provided with one can main shaft be the handwheel that rotate at the center, be provided with in this handwheel with linking arm on the grooving of the mutual fit in convex extension part.
The hinge folded structure of known folding ladder, complex structure, it is high to cause manufacturing cost to occupy, and it is simpler that industry is demanded a kind of structure urgently, and the hinge assembling structure of the folding ladder that security reliability is higher comes out.
Summary of the invention
Problem to be solved in the utility model is to overcome the defective that aforementioned techniques exists, and a kind of hinge assembling structure of simply constructed folding ladder is provided.
The utility model solves its technical problem and takes following technical scheme to realize, a kind of improved folding ladder hinge means that provides according to the utility model, comprise by pivotally connected relatively turnable first flap, second flap, described flap is assembled with terraced frame respectively, this flap has integrally formed disc crank portion and stretches the straight-arm portion that combines with cleat stanchion that establishes along this crank portion, and aforementioned disc crank portion center is provided with pivot hole; Wherein, first flap is adorned by pivot hole and second flap hinge by a pivot location group;
Described first flap is interlocked by first loam cake and first lower cover, and its hollow chamber's content is put the guidance set and the second flap crank portion; The slideway that cooperates the block slip of holding the guiding group is set on first flap; One guiding group rivet holder is arranged in the first flap hollow chamber, with respect to pivot hole, in abutting connection with the slideway place of lower cover or loam cake;
Described second flap is interlocked by second loam cake and second lower cover, form the hollow chamber of ccontaining pivot positioning component, the location group rivet holder that closes with the pivot positioning and assembling is set in this chamber, setting is complementary with the baffle plate wing portion of pivot location group on this second flap, but the spacing edge-cut of blocking baffle plate; The block that can drive the guiding group is dialled being assemblied on the flap by pivot along the handle of slideway slip.
The utility model solves the also available following technical scheme of its technical problem and further realizes:
Aforesaid improved folding ladder hinge means, wherein, described guidance set connects clamp and by an axis of guide that places stage clip by one and can install along the block that slideway slides, and the other end overhead of this axis of guide is on the guiding group rivet holder in the aforementioned first flap inner chamber.
Aforesaid improved folding ladder hinge means, wherein, described pivot location group, by a pivot that installs first lower cover, second lower cover and second loam cake, first loam cake successively, and by the baffle plate of this pivot device between second lower cover and second loam cake; Described baffle plate have with second flap on the first wing portion that is complementary of baffle plate spacing edge-cut, have a projection that holds spring in this wing portion, described spring holds on the location group rivet holder in the aforementioned second flap chamber;
Aforesaid improved folding ladder hinge means, wherein, described handle is dialled having spine, two lateral walls along this spine are stretched the side arm of establishing and insert and put flap respectively, the side that dial in the handle handle pivot dress hole that the crank portion setting of this side arm and the pivot of first flap dress hole coupling is corresponding, this handle is cranked arm block that upward setting can drive the guiding group along the side of the slideway slip groove of cranking arm.
Aforesaid improved folding ladder hinge means, wherein, described baffle plate setting becomes the second wing portion at a angle with the first wing portion, and the end of this wing portion extends the position that block can be stirred.
Aforesaid improved folding ladder hinge means, wherein, the end of wing portion is provided with so that block prolongs the tapered region portion that its inclined-plane enters recess smoothly.
Aforesaid improved folding ladder hinge means, wherein, a side that slideway and handle dial the groove of cranking arm is stretched out in the block setting.
The utility model compared with prior art has significant advantage and beneficial effect.By above technical scheme as can be known, the utility model has following advantage at least under the structure configuration of excellence:
The utility model is beneficial to the tapered region portion that drives this baffle plate in the baffle plate setting, guarantees that the flap action is sliding fast, accurate; The first wing portion of baffle plate and the setting of the second wing portion angulation are ladder more steady, the load-bearing better effects if.Ladder is stretched for the structure of the utility model guidance set and the setting of position and to be folded into the location more accurate, launches when the audient is used easily, folding convenient, safe and reliable; The simple and direct structure configuration of the utility model has directly effectively reduced manufacturing cost, makes ladder more firm, safe, light and handy, more affine audient.
The specific embodiment of the present utility model is provided in detail by following examples and accompanying drawing thereof.
Description of drawings
Fig. 1 is the utility model overall structure decomposing schematic representation;
Fig. 2 is the two STRUCTURE DECOMPOSITION schematic diagrames of the utility model embodiment;
Fig. 3 is the three STRUCTURE DECOMPOSITION schematic diagrames of the utility model embodiment;
Fig. 4 is that the utility model is converted into the herringbone state and shows view;
Fig. 5 is that the utility model is converted into another angle herringbone state and shows view;
Fig. 6 is that the utility model is converted into the in-line state and shows view.
The specific embodiment
Below in conjunction with preferred embodiment, to according to the specific embodiment provided by the invention, feature and effect thereof, describe in detail as after; For simple and purpose clearly, hereinafter appropriate omission the description of known technology, in order to avoid those unnecessary details influences are to the description of the technical program.
See also Fig. 1-6, a kind of improved folding ladder hinge means, comprise by pivotally connected relatively turnable first flap 1, second flap 2, described flap is assembled with terraced frame respectively, this flap has integrally formed disc crank portion and stretches along this crank portion establishes the 1a of straight-arm portion that combines with cleat stanchion, and aforementioned disc crank portion center is provided with pivot hole 13a, 23a; Wherein, first flap 1 is adorned by pivot hole 13a, 23a and second flap, 2 hinges by a pivot location group 3;
Described first flap is interlocked by first loam cake 11 and first lower cover 12, forms the hollow chamber 13 of the ccontaining guiding group 4 and the second flap crank portion; The slideway 16 that cooperates block 48 slips of holding the guiding group is set on first flap; One guiding group rivet holder 17 is arranged in the first flap hollow chamber, with respect to pivot hole 13a, in abutting connection with the slideway place of lower cover or loam cake;
One handle is dialled 5 one compression mouldings, be assemblied on the flap by pivot 53, this handle is dialled the 5a of spine that the 1a of straight-arm portion that has with first flap is interlocked, stretch the side arm 52 of establishing and insert and put flap respectively along two lateral walls of this spine, the crank portion setting of this side arm and the pivot of first flap dress hole 111, the handle handle pivot dress hole 521 that 121 couplings are corresponding, handle is dialled sliding along the spine 15 of flap around this flap pivot dress hole, the side that this handle is dialled is cranked arm and is gone up side that block 48 that setting can drive the guiding group slides along slideway 16 groove 522 of cranking arm, and is beneficial to stir block;
One guidance set 4 connects clamp 47 and by an axis of guide 45 that places stage clip 46 by one and can install along the block 48 that slideway 16 slides, block 48 settings are stretched out the side of slideway and handle group handle and are cranked arm groove 522 highly, so that handle is dialled stirring this block, the other end overhead of this axis of guide 45 is on the guiding group rivet holder 17 in the aforementioned first flap inner chamber;
Described second flap is interlocked by second loam cake 21 and second lower cover 22, form the hollow chamber 23 of ccontaining pivot positioning component, the location group rivet holder 221 that closes with the pivot positioning and assembling is set in this chamber, setting is complementary with the baffle plate wing portion of pivot location group on this second flap, but the spacing edge-cut 25 of blocking baffle plate;
One pivot location group 3, by a pivot 31 that installs first lower cover, second lower cover and second loam cake, first loam cake successively, and by the baffle plate 32 of this pivot device between second lower cover and second loam cake; Described baffle plate have with second flap on the first wing portion 321 that is complementary of baffle plate spacing edge-cut 25, has a projection 3211 that holds spring 33 in this wing portion, described spring holds on the location group rivet holder 221 in the aforementioned second flap chamber, this embodiment hinge can become in-line to open, use is on folding ladder, and folding ladder is extensible to be as shown in Figure 6 yi shaped ladder;
Described baffle plate also can be provided with the second wing portion 322 that becomes a angle with the first wing portion, and the end of this wing portion extends the position that block 48 can be stirred, and the end of wing portion is provided with tapered region portion 324, enters recess smoothly so that block prolongs its inclined-plane, is beneficial to drive this baffle plate; This embodiment hinge can become in-line to open, also can be folded into herringbone, use is on folding ladder, and folding ladder can be stretched to as shown in Figure 6 yi shaped ladder and also can roll over and be the herringbone ladder, and the size that two wing portions of baffle plate become a angle provides different embodiment shown in Fig. 4,5 for this case.34 for installing the packing ring of flap configuration.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (7)
1. improved folding ladder hinge means, comprise by pivotally connected relatively turnable first flap, second flap, described flap is assembled with terraced frame respectively, this flap has integrally formed disc crank portion and stretches the straight-arm portion (1a) that combines with cleat stanchion that establishes along this crank portion, and aforementioned disc crank portion center is provided with pivot hole (13a, 23a); It is characterized in that first flap (1) is adorned by pivot hole and second flap (2) hinge by a pivot location group (3);
Described first flap is interlocked by first loam cake (11) and first lower cover (12), the ccontaining guidance set (4) and the second flap crank portion in its hollow chamber (13); The slideway (16) that cooperates block (48) slip of holding the guiding group is set on first flap; One guiding group rivet holder (17) is arranged in the first flap hollow chamber (13), with respect to pivot hole, in abutting connection with the slideway place of lower cover or loam cake;
Described second flap is interlocked by second loam cake (21) and second lower cover (22), form the hollow chamber (23) of ccontaining pivot positioning component, the location group rivet holder (221) that closes with the pivot positioning and assembling is set in this chamber, setting is complementary with the baffle plate wing portion of pivot location group on this second flap, but the spacing edge-cut of blocking baffle plate (25); The handle that the block (48) that can drive the guiding group slides along slideway (16) is dialled (5) is assemblied on the flap by pivot (53).
2. improved folding ladder hinge means as claimed in claim 1, it is characterized in that, described guidance set (4) connects clamp (47) by an axis of guide (45) that places stage clip (46) by one and can install along the block (48) that slideway (16) slides with one, and the other end overhead of this axis of guide (45) is on the guiding group rivet holder (17) in the aforementioned first flap inner chamber.
3. improved folding ladder hinge means as claimed in claim 1 or 2, it is characterized in that, described pivot location group (3), by a pivot (31) that installs first lower cover, second lower cover and second loam cake, first loam cake successively, and by the baffle plate (32) of this pivot device between second lower cover and second loam cake; Described baffle plate have with second flap on the first wing portion (321) that is complementary of baffle plate spacing edge-cut (25), have a projection (3211) that holds spring (33) in this wing portion, described spring holds on the location group rivet holder (221) in the aforementioned second flap chamber;
4. improved folding ladder hinge means as claimed in claim 3, it is characterized in that, described handle is dialled has spine (5a) to (5), stretch the side arm (52) of establishing and insert and put flap respectively along two lateral walls of this spine, the side that dial in the handle handle pivot dress hole (521) that the crank portion setting of this side arm and the pivot of first flap dress hole coupling is corresponding, this handle is cranked arm block (48) that upward setting can drive the guiding group along the side of slideway (16) the slip groove (522) of cranking arm.
5. improved folding ladder hinge means as claimed in claim 4 is characterized in that, described baffle plate setting becomes the second wing portion (322) at a angle with the first wing portion, and the end of this wing portion extends the position that block (48) can be stirred.
6. improved folding ladder hinge means as claimed in claim 5 is characterized in that, the end of wing portion is provided with so that block prolongs the tapered region portion (324) that its inclined-plane enters recess smoothly.
7. improved folding ladder hinge means as claimed in claim 6 is characterized in that, a side that slideway and handle dial the groove (522) of cranking arm is stretched out in the block setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520026920 CN2813867Y (en) | 2005-08-05 | 2005-08-05 | Improved floding ladder hinge device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520026920 CN2813867Y (en) | 2005-08-05 | 2005-08-05 | Improved floding ladder hinge device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2813867Y true CN2813867Y (en) | 2006-09-06 |
Family
ID=36948952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520026920 Expired - Fee Related CN2813867Y (en) | 2005-08-05 | 2005-08-05 | Improved floding ladder hinge device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2813867Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014110913A1 (en) * | 2013-01-18 | 2014-07-24 | Miao Xiaochun | Thick plate type joint lock for ladder connection |
| CN104118574A (en) * | 2013-04-27 | 2014-10-29 | 陕西飞机工业（集团）有限公司 | Folding mechanism of plane working ladder |
| CN106114899A (en) * | 2016-07-01 | 2016-11-16 | 陕西飞机工业（集团）有限公司 | A kind of interior support arm of aircraft working stand fold mechanism |
| CN109154172A (en) * | 2016-06-14 | 2019-01-04 | 伟英企业有限公司 | Ladder, ladder hinge and correlation technique |
-
2005
- 2005-08-05 CN CN 200520026920 patent/CN2813867Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014110913A1 (en) * | 2013-01-18 | 2014-07-24 | Miao Xiaochun | Thick plate type joint lock for ladder connection |
| US10487580B2 (en) | 2013-01-18 | 2019-11-26 | Suzhou Dongrun Ladder Co., Ltd. | Thick plate type joint lock for ladder connection |
| CN104118574A (en) * | 2013-04-27 | 2014-10-29 | 陕西飞机工业（集团）有限公司 | Folding mechanism of plane working ladder |
| CN109154172A (en) * | 2016-06-14 | 2019-01-04 | 伟英企业有限公司 | Ladder, ladder hinge and correlation technique |
| US10801261B2 (en) | 2016-06-14 | 2020-10-13 | Wing Enterprises, Incorporated | Ladders, ladder hinges and related methods |
| CN109154172B (en) * | 2016-06-14 | 2021-03-09 | 伟英企业有限公司 | Ladders, ladder hinges, and related methods |
| CN106114899A (en) * | 2016-07-01 | 2016-11-16 | 陕西飞机工业（集团）有限公司 | A kind of interior support arm of aircraft working stand fold mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060906 |