CN2823522Y - Folding hinging structure of ladder - Google Patents
Folding hinging structure of ladder Download PDFInfo
- Publication number
- CN2823522Y CN2823522Y CN 200520026807 CN200520026807U CN2823522Y CN 2823522 Y CN2823522 Y CN 2823522Y CN 200520026807 CN200520026807 CN 200520026807 CN 200520026807 U CN200520026807 U CN 200520026807U CN 2823522 Y CN2823522 Y CN 2823522Y
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- Prior art keywords
- ladder
- hole
- flap
- pin
- mandrel
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Abstract
The utility model relates to a folding hinging structure of a ladder, which comprises a left and a right hinge plates which are connected by a pivot shaft and can be rotated correspondingly, wherein the left hinge plate is hinged with the right hinge plate by a positioning device with the pivot shaft. A hinge plate is provided with a disk-shaped turning head part and a straight arm part which is extended and arranged along the disk-shaped turning head part and combined with a ladder column. The center of the disk-shaped turning head part is provided with a pivot shaft hole provided with a stop rabbet, and the straight arm part is provided with an assembly hole of a treading roller. First pin column holes are respectively arranged on the disk-shaped turning head part and positioned on both sides of the pivot shaft hole. Second pin column holes are respectively arranged on both sides of the pivot shaft hole of a hinge plate of coupled hinge plates, a line formed two second pin column holes and a line formed by two first pin column holes are at an alpha angle clockwise. The purpose of a folding ladder that one ladder is used for multiple purposes can be realized by the utility model. A spring touching-bead structure is inlaid and arranged on a hinging shaft to provide a structure for further stop locking, and a pin column groove is arranged on a shaft sleeve to cause the ladder to be extended, folded and positioned more accurately. The utility model has more safety, and manufacturing costs are also directly and effectively reduced by the structure.
Description
Technical field
The utility model belongs to the structure member of ladder, especially the locating hinge structure 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.
Disclosed for another example Chinese patent 0325706.1 multipurpose ladder discloses a kind of locating hinge structure of folding ladder.The hinge folded structure of known folding ladder, have only for finishing folding purpose, and complex structure causes manufacturing cost to occupy height; Though what have can make ladder be double ladder or yi shaped ladder by the hinge folded structure, can not make ladder more steady; Ladder is yi shaped ladder or folding accurately puts in place for not guaranteeing that mechanical action is clean in the process of double ladder opening.Industry demand urgently a kind of security reliability higher, structure more simple ladder back flap hinge assembling structure come 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 ladder back flap hinge assembling structure that makes lightly folding, the safe stretching, extension of ladder, stable position is provided.
The utility model solves its technical problem and takes following technical scheme to realize, the back flap hinge assembling structure of a kind of ladder that provides according to the utility model, comprise by pivotally connected relatively turnable left and right flap, wherein, left flap is by a pivot positioner and right flap hinge dress; The disc that has flap turns head and turns head along this and stretch and establish the straight-arm portion that combines with cleat stanchion, and described disc turns the pivot hole that the head center setting has spacing edge-cut, and described straight-arm portion is provided with the riding club pilot hole; Turn in disc and to be positioned at described pivot hole both sides on the head first pin hole is set respectively; Pivot hole both sides at one of the flap that is coupled flap are provided with second pin hole again respectively, and two second pin hole be in lines are in line with two first pin hole and become the α angle clockwise.
The utility model solves the also available following technical scheme of its technical problem and further realizes:
The back flap hinge assembling structure of aforesaid ladder, wherein, described pivot positioner has a mandrel that runs through each flap pivot hole, and an end of this mandrel is by first circlip assembling one handle; The other end of mandrel installs by pin and sleeve block, and pocketed springs, second circlip, and the axle sleeve that combines with mandrel lock core portion coupling successively on the mandrel install spring in the mandrel lock core portion, and the hole of bead of bumping on pearl group and the axle sleeve of bumping is complementary; The projection of spacing edge-cut coupling that turns the pivot hole of head with aforementioned disc is set on the axle sleeve, is provided with two in abutting connection with this projection and bumps the hole of bead; Two pins that combine with the axle sleeve hole coupling of flap are set on the sleeve block, form handle portion between this pin.
The back flap hinge assembling structure of aforesaid ladder wherein, is provided with the ccontaining spiral inside groove that bumps pearl in abutting connection with bumping the hole of bead in the described axle sleeve.
The back flap hinge assembling structure of aforesaid ladder wherein, installs resilient sleeper-bearing respectively by pin between described each flap.
The back flap hinge assembling structure of aforesaid ladder, wherein, described resilient sleeper-bearing is set to meet the shaped rings of terraced edge edge.
The back flap hinge assembling structure of aforesaid ladder, wherein, the end of assembling handle is provided with the draw-in groove of blocking handle on the described mandrel.
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 can make folded ladder both can be A font ladder, and can extend again is the yi word pattern ladder, can realize use of folding ladder one ladder more;
The utility model clamps elastomeric pad between flap, guarantee that flap assembling firmly can not become flexible, ensured the safety of ladder, the elastomeric pad setting meets the shaped rings of terraced frame outer rim, realized not only lightweight but also lower consumption of ladder annex, again the good multiple effect of accordance;
The utility model edge on hinge dress axle is put the structure that the spring latch lock structure provides further limitation locking, and configuration pin groove on axle sleeve stretches ladder and to be folded into the location more accurate, launches when the audient is used easily, folding convenient, safe and reliable;
The structure of the utility model has directly effectively lowered manufacturing cost, and it is conceived cleverly 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 schematic diagram;
Fig. 2 is the decomposing schematic representation of Fig. 1;
Fig. 3 is that pivot positioner bonding state section shows view;
Fig. 3 a is that pivot positioner released state section shows view;
Fig. 3 b is a pivot positioner decomposing schematic representation;
Fig. 3 c is that pivot positioner bottom bracket axle bumps the hole of bead and the gathering sill structural profile 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. 1-5, the back flap hinge assembling structure of ladder comprises that by pivotally connected relatively turnable left and right flap, this left and right flap is assembled with terraced frame T respectively, wherein, one pair of left flap 1 is by a pivot positioner 4 and one pair of right flap 2 hinge dress;
Left side flap is identical with right flap shape, the integrally formed disc that has this flap turns head 11,21 and turns head along this and stretch the straight-arm portion 12,22 that combines with cleat stanchion that establishes, described disc turns the pivot hole 13,23 that the head center setting has spacing edge-cut 131,231, and described straight-arm portion is provided with riding club pilot hole 15,25; Turn in the disc parallel and to be positioned at described pivot hole both sides on the head center line b first pin hole 14,24 is set respectively with the center line a of straight-arm portion;
Textural not the existing together of left and right flap is that disc at right flap turns head along the center line b α angle that turns clockwise, and second pin hole 14 ' is set respectively again in the pivot hole both sides;
Install resilient sleeper-bearing 10 respectively by pin between the left and right flap, make each flap assembling more firm, must not become flexible, resilient sleeper-bearing 10 is set to the one-body molded hollow shaped rings of plastic material;
Described pivot positioner 4 comprises that one runs through the mandrel 41 of flap pivot hole, and an end of this mandrel is by first circlip, 43 assembling one handles 42, and this end is provided with the draw-in groove 413 of blocking handle;
The other end of mandrel installs by pin 44 and sleeve block 45, pocketed springs 46, second circlip 48, and the axle sleeve 49 that combines with mandrel lock core portion 412 couplings successively on the mandrel, bump hole of bead 492a, the 492b that install spring in the mandrel lock core portion, bump on pearl group 4121 and the axle sleeve are complementary; Spring and bump pearl and be set in bumping in the hole of bead on the axle sleeve, when the folding position, because of spring action, the pin of sleeve block inserts in the flap, and left and right hinge can not be rotated;
Have the spacing edge-cut that turns the pivot hole of head with aforementioned disc on the axle sleeve and mated position-limiting action
Projection 491 is provided with two in abutting connection with this projection and bumps hole of bead 492a, 492b.In abutting connection with bumping the hole of bead the ccontaining spiral inside groove 493 that bumps pearl is set in the axle sleeve;
Two pins 452 that combine with axle sleeve hole 14 couplings of flap are set on the sleeve block 45, form handle portion 451 between this pin;
When hinge has relative motion, shown in Fig. 3 a, bump pearl disengagement axle sleeve and bump the hole of bead, sleeve block moves to right, and pin withstands on the side plane of hinge; When hinge forwards the use location to by the folding position, when both ladder was herringbone or in-line, spring impeller-hub band sleeve block and is moved right, and realized location stop;
When needs are folding, shown in Fig. 3 b, press fixed handle, axle is being with sleeve block to left movement, and pin is deviate from the hinge pin hole, under the effect of spring, bump pearl and embed one on the axle sleeve and bump the hole of bead, ladder is a word, and maybe this bumps pearl and embeds on the axle sleeve another and bump the hole of bead, ladder is herringbone, and axle and sleeve block can not be moved to right; When being rotated further, bump pearl and throw off axle sleeve when bumping the hole of bead, bump pearl and smoothly entered inside groove, make not fast moving to the right of axle and sleeve block maintenance, in the time of near the folding position, bump pearl and throw off inside groove, sleeve block moves to right, and pin withstands on the side plane of hinge, when the folding position, under the effect of spring, pin inserts in the hinge pin hole, thereby realizes launching the requirement of easy folding convenient.
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 (6)
1. the back flap hinge assembling structure of a ladder comprises by pivotally connected relatively turnable left and right flap, it is characterized in that, left flap (1) is by a pivot positioner (4) and right flap (2) hinge dress; The disc that has described flap turns head (11,21) and turns head along this and stretch the straight-arm portion (12,22) that combines with cleat stanchion that establishes, described disc turns the pivot hole (13,23) that the head center setting has spacing edge-cut (131,231), and described straight-arm portion is provided with riding club pilot hole (15,25); Turn in disc and to be positioned at described pivot hole both sides on the head first pin hole (14,24) is set respectively; Pivot hole both sides at one of the flap that is coupled flap are provided with second pin hole (14 ', 24 ') again respectively, and two second pin hole be in lines are in line with two first pin hole and become the α angle clockwise.
2. the back flap hinge assembling structure of ladder as claimed in claim 1 is characterized in that, described pivot positioner (4) has a mandrel (41) that runs through each flap pivot hole, and an end of this mandrel is by first circlip (43) assembling one handle (42); The other end of mandrel installs by pin (44) and sleeve block (45), on the mandrel successively pocketed springs (46), second circlip (48), and mate the axle sleeve (49) that combines with mandrel lock core portion (412), install spring in the mandrel lock core portion, the hole of bead of bumping on pearl group (4121) and the axle sleeve (492a, 492b) of bumping is complementary; The projection (491) that turns spacing edge-cut (131, the 231) coupling of the pivot hole of head with aforementioned disc is set on the axle sleeve, is provided with two in abutting connection with this projection and bumps the hole of bead (492a, 492b); Sleeve block (45) is gone up two pins (452) that combine with axle sleeve hole (14) coupling of flap is set, and forms handle portion (451) between this pin.
3. the back flap hinge assembling structure of ladder as claimed in claim 2 is characterized in that, in abutting connection with bumping the hole of bead the ccontaining spiral inside groove (493) that bumps pearl is set in the described axle sleeve.
4. the back flap hinge assembling structure of ladder as claimed in claim 3 is characterized in that, installs resilient sleeper-bearing (10) respectively by pin between described each flap.
5. the back flap hinge assembling structure of ladder as claimed in claim 4 is characterized in that, described resilient sleeper-bearing is set to meet the shaped rings of terraced edge edge.
6. the back flap hinge assembling structure of ladder as claimed in claim 5 is characterized in that, the end of assembling handle is provided with the draw-in groove (413) of blocking handle on the described mandrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520026807 CN2823522Y (en) | 2005-07-27 | 2005-07-27 | Folding hinging structure of ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520026807 CN2823522Y (en) | 2005-07-27 | 2005-07-27 | Folding hinging structure of ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2823522Y true CN2823522Y (en) | 2006-10-04 |
Family
ID=37032635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520026807 Expired - Fee Related CN2823522Y (en) | 2005-07-27 | 2005-07-27 | Folding hinging structure of ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2823522Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201393A (en) * | 2015-09-18 | 2015-12-30 | 常州市艾森塑料科技有限公司 | Ladder easy to store |
| 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 |
| CN110030256A (en) * | 2019-05-27 | 2019-07-19 | 福州大学 | The more detent linkages of pressure-rotary and its detent method |
| CN111287640A (en) * | 2018-12-07 | 2020-06-16 | 江苏宙际杰智能科技股份有限公司 | Ladder with adjustable height |
| WO2021109845A1 (en) * | 2019-12-05 | 2021-06-10 | 江苏宙际杰智能科技股份有限公司 | Rotation control mechanism for use in folding ladder, and folding ladder |
| CN114233171A (en) * | 2022-01-20 | 2022-03-25 | 天津市金锚家居用品有限公司 | Foldable ladder |
-
2005
- 2005-07-27 CN CN 200520026807 patent/CN2823522Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201393A (en) * | 2015-09-18 | 2015-12-30 | 常州市艾森塑料科技有限公司 | Ladder easy to store |
| 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 |
| CN111287640A (en) * | 2018-12-07 | 2020-06-16 | 江苏宙际杰智能科技股份有限公司 | Ladder with adjustable height |
| CN110030256A (en) * | 2019-05-27 | 2019-07-19 | 福州大学 | The more detent linkages of pressure-rotary and its detent method |
| CN110030256B (en) * | 2019-05-27 | 2024-01-30 | 福州大学 | Pressure-rotation type multi-clamping-position hinge mechanism and clamping method thereof |
| WO2021109845A1 (en) * | 2019-12-05 | 2021-06-10 | 江苏宙际杰智能科技股份有限公司 | Rotation control mechanism for use in folding ladder, and folding ladder |
| CN114233171A (en) * | 2022-01-20 | 2022-03-25 | 天津市金锚家居用品有限公司 | Foldable ladder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061004 Termination date: 20140727 |
|
| EXPY | Termination of patent right or utility model |