CN103422809A - Portable curling ladder - Google Patents
Portable curling ladder Download PDFInfo
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- CN103422809A CN103422809A CN2013102246340A CN201310224634A CN103422809A CN 103422809 A CN103422809 A CN 103422809A CN 2013102246340 A CN2013102246340 A CN 2013102246340A CN 201310224634 A CN201310224634 A CN 201310224634A CN 103422809 A CN103422809 A CN 103422809A
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- ladder
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Abstract
A portable curling ladder adopts the structure that a base is provided with adjusting bolts, idler wheels are fixed on the base, a pull rod is connected to the bottom of the base, a reel is embedded into the base and is in the same shape as a 'whistle', ladder sections are wound on a drum and curled in the reel, rollers and a rubber guide ring are designed on the reel and at the 'whistle mouth', the joints of the adjacent ladder sections are connected through tailor-made structures, and the reel can control the extending angle of elevation of the ladder through a small handwheel. The portable curling ladder can be freely curl in and extend out, occupies a maximally reduced space after being curled in, is convenient to carry and move, and can be widely used in daily life as well as risk and disaster relief.
Description
Technical field
The present invention relates to a kind of ladder of crispaturaing, be specifically related to a kind of portable ladder of crispaturaing.
Background technology
The ladder product category is various at present, and most of ladder product can meet the climbing function of substantially ascending a height, but be accompanied by climbing increase ladder overall length highly, also can increase, and ladder is longer, takes up room just larger, is unfavorable for routine use.Generally in the highly low situation of climbing, can select vertical ladder or double ladder, a higher point selection extension ladder, when vertical ladder and extension ladder can not meet the demands, generally by motor ladder, take up room accordingly and just increase along with the increase of climbing height.We effectively weigh the ladder size that takes up room with total length and the ratio of length of taking up room with ladder, and this ratio is referred to as magnification.General vertical ladder magnification is 1, and extension ladder and motor ladder can reach 3-5, and the larger explanation of magnification is taking under the same space condition, and ladder is effectively used length larger.
Therefore, inventing the less ladder that takes up room extremely is necessary.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the object of the present invention is to provide a kind of portable ladder of crispaturaing, can freely be involved in and stretch out, can reduce to greatest extent ladder and take up room when ladder is packed up, be easy to carry and move, can be applied in more widely in daily life and the anti-dangerous disaster relief.
For achieving the above object, the present invention adopts following technical proposals:
A kind of portable ladder of crispaturaing, comprise section of ladder 1, reel 2, base 3 and cylinder 11, and base 3 is cuboid and boring, pull bar 12 is hinged on base 3 bottoms, the exit position of reel 2 has two through holes 8, and on pull bar 12, joint is extracted rear insertion through hole 8, so that the section of ladder 1 after fixedly stretching out; Reel 2 embeds base 3 inside, and reel 2 comprises cylindric barrel shell and the outlet tangent with barrel shell, and there is little axle at cylinder 11 two ends, on little axle, cover has bearing, bearing is configured on base 2, and little axle links together reel 2, base 3, and the little axle of large handwheel 5 and cylinder 11 ends links together by key.
Section of ladder 1 is wrapped on cylinder 11 crispaturas in reel 2 inside, reel 2 is designed with roller 10 and rubber duct ring 9 in exit position, roller 10 perpendicular to plane on reel 2 through the outlet and by bearing, with reel 2, be connected, rubber duct ring 9 axis are parallel to plane on reel 2, roller 10 and all 360 ° of rotations of energy of rubber duct ring 9, roller 10 positions need to guarantee that the ladder joint bending just occurs through this position the time or stretches
Reel 11 has 6 blades, the adjacent angle of the first blade A to the five blade E is 60 °, the 6th blade F and the first blade A, the 5th blade E angle are 0-90 °, the first blade A, the second blade B, the 3rd blade C, quaterfoil D and the 5th blade E are equal in length, the 6th blade F length is determined according to concrete section of ladder length when design, the first blade A is connected by pin with first joint section of ladder, and the first segment section of ladder can freely be rotated
Adjacent section of ladder 1 joint adopts following structure to connect: wherein go up section of ladder 19 and respectively be provided with 1 large pin hole and 5 little pin holes with lower section of ladder 20 ends, when adjacent section of ladder is parallel, upper and lower section of ladder pin hole axis is corresponding coincidence in twos separately, the joint connector is by interior pin 16, outer pin 18, spring 17, lock bolt 15 forms, interior pin 16 comprises a flange, flange one side has 5 the first dump bolts, be provided with a ladder through hole in the middle of interior pin 16, spring 17 is arranged in interior pin 16 ladder holes, outer pin 18 is provided with 1 long pin and 5 the second dump bolts, interior pin 16 and spring 17 are placed in the middle of two section of ladders, outer pin 18 inserts from the section of ladder right side, utilize long pin and locking nut 15 by upper section of ladder 19, lower section of ladder 20, spring 17 is fixed together.
Described reel 2 lower rights are provided with two arc-shaped racks and coordinate with gear 13, gear 13 is fixed on base 3 right sides by the axis of rotation of small handwheel 7, and gear 13 and ratchet 21 form ratchet mechanism, and rotation small handwheel 7 can be controlled ladder and stretch out the elevation angle, and can pass through the ratchet mechanism fixed elevation
Described large handwheel 5 and small handwheel 7 under external force can 360 ° of rotations.
Described section of ladder 1 adopts non-isometric section of ladder, the long 150mm of minimum section of ladder, and follow-up section of ladder increases section by section according to arithmetic progression, according to ladder length and requirement of strength, determines section of ladder thickness and section of ladder number.
Beneficial effect of the present invention is:
1, the adjacent section of ladder of the present invention can bend arbitrarily between 0-72 °, and only in the time of 0 °, fixes.
2, maximum of the present invention realizes the magnification of 6:1, farthest reduces ladder and takes up room.
3, the ladder of the present invention elevation angle can be adjusted arbitrarily between 0-90 °.
The accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is internal construction schematic diagram of the present invention.
Fig. 3 is cylinder 2 structural representations of the present invention.
Fig. 4 is section of ladder articulation structure schematic diagram of the present invention.
Fig. 5 is section of ladder of the present invention joint view, and wherein a1, a2, a3 are that straight configuration schematic diagram: a1 is front elevation drawing, and a2 is left view, and a3 is oblique view; B1, b2, b3 are that case of bending schematic diagram: b1 is front elevation drawing, and b2 is left view, and b3 is oblique view.
Fig. 6 is that schematic diagram is regulated at the elevation angle of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
As shown in Figure 1, a kind of portable ladder of crispaturaing, comprise section of ladder 1, reel 2, base 3 and cylinder 11, base 3 is cuboid and boring, four jiaos of base 3 base plates are provided with four screwed holes, adjusting bolt 4 screws in screwed hole, adjust base 3 level heights, roller 6 is fixed on four jiaos of base 2 base plates, and for the terraced movement of crispaturaing, pull bar 12 is hinged on base 3 bottoms, pull bar 12 can rotate up and down, at ladder, stretch out when complete, on pull bar 12, joint can be pulled out and be inserted in fixing hole 8, the movement of restriction section of ladder 1.
As shown in Figure 2, reel 2 embeds base 3 inside, reel 2 shapes are identical with " whistle ", cylindric thin-walled barrel shell and the outlet tangent with barrel shell are arranged, go out mouth-shaped as " whistle mouth ", there is little axle at cylinder 11 two ends, on little axle, cover has bearing, bearing is configured on base 2, and little axle links together reel 2, base 3, and the little axle of large handwheel 5 and cylinder 11 ends links together by key.
Section of ladder 1 is wrapped on cylinder 11 crispaturas in reel 2 inside, reel 2 has roller 10 and rubber duct ring 9 in " whistle mouth " Position Design, roller 10 is connected with reel 2 through " whistle mouth " and by bearing perpendicular to plane on reel 2, rubber duct ring 9 axis are parallel to plane on reel 2, roller 10 and all 360 ° of rotations of energy of rubber duct ring 9, roller 10 just bends 2 of local installations at section of ladder, accurate Calculation need to be passed through in roller 10 positions, to guarantee that the ladder joint bending just occurs through this position the time or stretches, rubber duct ring 9 quantity can be arranged but be necessary for even number according to actual conditions.
As shown in Figure 3, reel 11 has 6 blades, the adjacent angle of the first blade A to the five blade E is 60 °, the 6th blade F and the first blade A, the 5th blade E angle are 0-90 °, the first blade A, the second blade B, the 3rd blade C, quaterfoil D and the 5th blade E are equal in length, the 6th blade F length is definite according to concrete section of ladder length when design, and the first blade A is connected by pin with first joint section of ladder, and the first segment section of ladder can freely be rotated.
As shown in Figure 4, adjacent section of ladder joint adopts following structure to connect: wherein going up section of ladder 19 respectively has 1 large pin hole and 5 little pin holes with lower section of ladder 20 ends, when adjacent section of ladder is parallel, upper and lower section of ladder pin hole axis is corresponding coincidence in twos separately, the joint connector is by interior pin 16, outer pin 18, spring 17, lock bolt 15 forms, interior pin 16 comprises a flange, flange one side has 5 the first dump bolts, be provided with a ladder through hole in the middle of interior pin 16, spring 17 is arranged in interior pin 16 ladder holes, outer pin 18 has 1 long pin and 5 second dump bolts, interior pin 16 and spring 17 are placed in the middle of two section of ladders, outer pin 18 inserts from the section of ladder right side, utilize long pin and locking nut 15 by upper section of ladder 19, lower section of ladder 20, spring 17 is fixed together.After section of ladder 1 extend out to appropriate length, pull bar 12 can be extracted to the through hole 8 that is inserted into reel 2 exit positions, so that fixing section of ladder 1.
As shown in Figure 6, described reel 2 lower rights have two arc-shaped racks to coordinate with gear 13, gear 13 is fixed on base 3 right sides by the axis of rotation of small handwheel 7, gear 13 and ratchet 21 form ratchet mechanism, rotation small handwheel 7 can be controlled ladder and stretch out the elevation angle, and can pass through the ratchet mechanism fixed elevation.
Section of ladder 1 adopts non-isometric section of ladder, the long 150mm of minimum section of ladder, and follow-up section of ladder increases section by section according to arithmetic progression, according to ladder length and requirement of strength, determines section of ladder thickness and section of ladder number.
Described large handwheel 5 and small handwheel 7 under external force can 360 ° of rotations.
Operating principle of the present invention is: the ladder one of crispaturaing has two actions and is involved in and stretches out, the process that is involved in is as follows: rotate counterclockwise large handwheel 5, under the turning moment effect, exterior ladder starts to enter in reel, reel mouth end is settled two rollers 10, while moving to herein in joint, roller 10 is pressed into outer pin 18 long pin, due to interior pin 16, outer pin 18 connects by lock bolt 15, their motion is consistent, outer pin 18 moves along the pin hole axis with interior pin 16, roller 10 amounts of being pressed into are greater than the length of dump bolt, interior pin 16, the little pin hole of the dump bolt of outer pin 18 and section of ladder breaks away from, now the long pin of outer pin 18 still embeds in the large pin hole of section of ladder, being pressed into the moment reel at roller 10 is still rotating, adjacent two joint ladders are no longer parallel but produce 0-60 ° of angle.As shown in Figure 4, the second dump bolt of outer pin 18 is embedded in the little pin-and-hole of adjacent section of ladder, section of ladder at least will turn 72 °, be regular hexagon and be involved in an interior ladder, adjacent section of ladder maximum angle is 60 °, therefore the second dump bolt of outer pin 18 can not insert in adjacent little pin-and-hole again, interior pin 16 is also like this, this has just realized automatically being involved in, the process of stretching out is as follows: rotate small handwheel 7 and determine the ladder elevation angle, and fixing with ratchet 21, adjustment bolt 4 above base 3 is adjusted to same plane simultaneously, clockwise rotate large handwheel 5, section of ladder 1 is in change level under the effect of rubber guide wheel 9 at the reel mouth, due to interior pin 16, outer pin 18 connects by lock bolt 15, their motion is consistent, as long as adjacent section of ladder angle becomes 0 °, interior pin 16, the large pin hole axial-movement in outer pin 18 edge under the effect of spring 17, until all little pins embed in the little pin hole of section of ladder, section of ladder is fixed.After section of ladder extend out to appropriate length, joint on pull bar 12 is extracted, be inserted in section of ladder fixing hole 8, ladder is fixed, complete the process of stretching out.
Claims (4)
1. the portable ladder of crispaturaing, comprise section of ladder (1), reel (2), base (3) and cylinder (11), it is characterized in that: base (3) is cuboid and boring, pull bar (12) is hinged on base (3) bottom, the exit position of reel (2) has two through holes (8), the upper joint of pull bar (12) is extracted rear insertion through hole (8), so that the section of ladder after fixedly stretching out (1); Reel (2) embeds base (3) inside, reel (2) comprises cylindric barrel shell and the outlet tangent with barrel shell, there is little axle at cylinder (11) two ends, on little axle, cover has bearing, bearing is configured on base (2), little axle links together reel (2), base (3), and the little axle of large handwheel (5) and cylinder (11) end links together by key
Section of ladder (1) is wrapped on cylinder (11) crispaturas in reel (2) inside, reel (2) is designed with roller (10) and rubber duct ring (9) in exit position, roller (10) is gone up plane through outlet and is connected with reel (2) by bearing perpendicular to reel (2), rubber duct ring (9) axis is parallel to the upper plane of reel (2), the all 360 ° of rotations of energy of roller (10) and rubber duct ring (9), roller (10) position need to guarantee that the ladder joint bending just occurs through this position the time or stretches
Reel (11) has 6 blades, the first blade (A) is 60 ° to the adjacent angle of the 5th blade (E), the 6th blade (F) is 0-90 ° with the first blade (A), the 5th blade (E) angle, the first blade (A), the second blade (B), the 3rd blade (C), quaterfoil (D) and the 5th blade (E) are equal in length, the 6th blade (F) length is determined according to concrete section of ladder length when design, the first blade (A) is connected by pin with first joint section of ladder, the first segment section of ladder can freely be rotated
Adjacent section of ladder (1) joint adopts following structure to connect: wherein go up section of ladder (19) and respectively be provided with 1 large pin hole and 5 little pin holes with lower section of ladder (20) end, when adjacent section of ladder is parallel, upper and lower section of ladder pin hole axis is corresponding coincidence in twos separately, the joint connector is by interior pin (16), outer pin (18), spring (17), lock bolt (15) forms, interior pin (16) comprises a flange, flange one side has 5 the first dump bolts, be provided with a ladder through hole in the middle of interior pin (16), outer pin (18) is provided with 1 long pin and 5 the second dump bolts, spring (17) is arranged in interior pin (16) ladder hole, interior pin (16) and spring (17) are placed in the middle of two section of ladders, outer pin (18) inserts from the section of ladder right side, utilize long pin and locking nut (15) by upper section of ladder (19), lower section of ladder (20), spring (17) is fixed together.
2. the portable ladder of crispaturaing according to claim 1, it is characterized in that: described reel (2) lower right is provided with two arc-shaped racks and coordinates with gear (13), gear (13) is fixed on base (3) right side by the axis of rotation of small handwheel (7), gear (13) and ratchet (21) form ratchet mechanism, rotation small handwheel (7) can be controlled ladder and stretch out the elevation angle, and can pass through the ratchet mechanism fixed elevation.
3. the portable ladder of crispaturaing according to claim 1, it is characterized in that: described large handwheel (5) and small handwheel (7) under external force can 360 ° of rotations.
4. the portable ladder of crispaturaing according to claim 1, it is characterized in that: described section of ladder (1) adopts non-isometric section of ladder, the long 150mm of minimum section of ladder, follow-up section of ladder increases section by section according to arithmetic progression, according to ladder length and requirement of strength, determines section of ladder thickness and section of ladder number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310224634.0A CN103422809B (en) | 2013-06-06 | 2013-06-06 | Portable curling ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310224634.0A CN103422809B (en) | 2013-06-06 | 2013-06-06 | Portable curling ladder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103422809A true CN103422809A (en) | 2013-12-04 |
| CN103422809B CN103422809B (en) | 2015-04-15 |
Family
ID=49648145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310224634.0A Expired - Fee Related CN103422809B (en) | 2013-06-06 | 2013-06-06 | Portable curling ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103422809B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110847633A (en) * | 2019-09-18 | 2020-02-28 | 济南城建集团有限公司 | Foldable assembled safety ladder |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2461429A (en) * | 1947-01-02 | 1949-02-08 | Karl O Larson | Continuously extensible, retractable, and collapsible structure |
| US3044313A (en) * | 1960-11-14 | 1962-07-17 | Towner Mfg Company | Apparatus for converting reciprocatory motion to oscillatory motion |
| AU8160282A (en) * | 1982-03-17 | 1983-09-22 | Kummerlin, W. | Hinge fitting for foldable ladders |
| CN1034779A (en) * | 1988-02-02 | 1989-08-16 | 杨伟华 | Winding elevator |
| CN2056187U (en) * | 1989-09-04 | 1990-04-18 | 江苏省仪征有色金属材料厂 | Multifunctional foldable ladder |
-
2013
- 2013-06-06 CN CN201310224634.0A patent/CN103422809B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2461429A (en) * | 1947-01-02 | 1949-02-08 | Karl O Larson | Continuously extensible, retractable, and collapsible structure |
| US3044313A (en) * | 1960-11-14 | 1962-07-17 | Towner Mfg Company | Apparatus for converting reciprocatory motion to oscillatory motion |
| AU8160282A (en) * | 1982-03-17 | 1983-09-22 | Kummerlin, W. | Hinge fitting for foldable ladders |
| CN1034779A (en) * | 1988-02-02 | 1989-08-16 | 杨伟华 | Winding elevator |
| CN2056187U (en) * | 1989-09-04 | 1990-04-18 | 江苏省仪征有色金属材料厂 | Multifunctional foldable ladder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110847633A (en) * | 2019-09-18 | 2020-02-28 | 济南城建集团有限公司 | Foldable assembled safety ladder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103422809B (en) | 2015-04-15 |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20150415 Termination date: 20180606 |
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| CF01 | Termination of patent right due to non-payment of annual fee |