CN105134065A - Portable multifunctional combined ladder - Google Patents

Portable multifunctional combined ladder Download PDF

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Publication number
CN105134065A
CN105134065A CN201510369834.4A CN201510369834A CN105134065A CN 105134065 A CN105134065 A CN 105134065A CN 201510369834 A CN201510369834 A CN 201510369834A CN 105134065 A CN105134065 A CN 105134065A
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CN
China
Prior art keywords
ladder
pedal
hole
pin
portable
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.)
Pending
Application number
CN201510369834.4A
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Chinese (zh)
Inventor
陈绍春
陈亮
林少扬
张森鑫
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Fuzhou University
Original Assignee
Fuzhou University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fuzhou University filed Critical Fuzhou University
Priority to CN201510369834.4A priority Critical patent/CN105134065A/en
Publication of CN105134065A publication Critical patent/CN105134065A/en
Pending legal-status Critical Current

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Abstract

A portable multifunctional combined ladder comprises a pedal ladder and a telescoping ladder with telescoping function, one end of the pedal ladder and one end of the telescoping ladder are in connection via a rotation positioning mechanism, and different-angle rotation positioning of the pedal ladder relative to the telescoping ladder is realized through the rotation positioning mechanism; the pedal ladder comprises two vertical columns, a plurality of first pedal, and a second pedal whose pedal surface is larger than that of the first pedal; the first pedals form a revolute pair via a connection rod; the second pedal is arranged at one end, far away from the telescoping ladder, of the two vertical column via a turnover mechanism, and turnover positioning of the second pedal between the two vertical columns via the turnover mechanism is realized. The combined ladder possesses the advantages of being wide in applicability, safe, durable, simple in structure and convenient to use.

Description

A kind of portable multi-function combination ladder
[technical field]
The present invention relates to a kind of combination ladder, be specifically related to a kind of portable multi-function combination ladder.
[background technology]
Along with the transition in epoch, people more and more focus on the multifunction of product to meet its multiple demands.But existing ladder is mostly only as single climbing tool, and general a kind of ladder is only for a kind of climbing of situation, has very strong limitation.
[summary of the invention]
For the problems referred to above, the invention provides a kind of portable multi-function combination ladder, rotated by the angle of pedal ladder and extension ladder connecting end portion, make this combination ladder can apply climbing, rest, shipping goods etc., there is stronger application.
The present invention is achieved by the following technical solutions, a kind of portable multi-function combination ladder is provided, comprise: pedal ladder, there is the extension ladder of Telescopic, described pedal ladder end is connected by rotary positioning mechanism with extension ladder end, and the rotation that this pedal ladder and extension ladder realize different angles by rotary positioning mechanism is located;
Described pedal ladder comprises two columns, some first pedals, second pedal large compared with the first pedal plate face; Described some first pedals form revolute pair by connecting rod; Described second pedal is located at two columns one end away from extension ladder by switching mechanism, and this second pedal realizes upset location by switching mechanism between two columns.
Especially, described rotary positioning mechanism is provided with drag link mechanism, this drag link mechanism rotates location by rotary positioning mechanism in combination ladder end, this drag link mechanism comprises: two pull bars, junction plates, one end of described two pull bars is located at rotary positioning mechanism end respectively, the other end is connected by junction plate, and this junction plate is provided with well away from the side of rotary positioning mechanism.
Especially, described rotary positioning mechanism comprises: axis of rotation, be located at the pad in rotating shaft terminal portion respectively, this pad is provided with at least one pin-and-hole, described pull bar one end is provided with and is fixed with backstay, this backstay is provided with latch, described pull bar is inserted in pin-and-hole the connection realizing drag link mechanism and rotary positioning mechanism by latch, this drag link mechanism realizes being separated thus realizing rotating freely of drag link mechanism of latch and pin-and-hole by pressing backstay.
Especially, described first pedal and column junction are provided with the first U-shaped pin, described column and the junction of the first pedal are provided with size for making the first U-shaped latch pass identical the first through hole, the second through hole, third through-hole, described first through hole, the second through hole circle center line connecting are parallel to the ground, described second through hole, third through-hole circle center line connecting are parallel with column, be provided with the first spring between described column and the first U-shaped pin, described first pedal realizes rotating and locking by the plug of the first U-shaped pin.
Especially, described switching mechanism comprises: be located at the second spring of the second pedal and column junction, the second U-shaped pin successively, described second pedal realizes rotation and the locking of the second pedal by the plug of the second U-shaped pin.
Especially, described extension ladder comprises: outside staircase, manhole ladder, and the end pins of described outside staircase and manhole ladder is connected with for realizing the flexible mechanical lock of extension ladder.
Especially, described mechanical lock comprises: be located at the fixed bar on manhole ladder support arm, two connecting rods be sheathed in fixed bar, be fixed at linkage between two connecting rods, described connecting rod is connected with extension ladder by pin away from the end of linkage, this pin outer cover is provided with the 3rd spring, described linkage be provided with for, described driving lever is inserted in the driving lever realizing pin plug, on the end winding support of this driving lever and two linkages, described outside staircase and manhole ladder by the plug of pin realizes flexible with lock.
Especially, two support arms of described extension ladder are away from the side universal wheel of pedal ladder and directional wheel.
Compared to prior art, a kind of portable multi-function combination ladder provided by the invention, the setting of pedal ladder and extension ladder end rotary positioning mechanism, can realize the rotation of pedal ladder and 45 °, extension ladder end, the different angles such as 90 °, 180 °, make the application of this combination ladder more extensive; The rotation of the first pedal, the second pedal on pedal ladder, makes this combination ladder may be used for having a rest, tramples, carries object etc., further increase the application of this combination ladder; The setting of drag link mechanism, not only increases the safety of this combination ladder, and the setting of its upper, tool groove, may be used for holding instrument, the use of convenient operation personnel simultaneously.This combination ladder has the advantage that applicability is wide, safety durable, structure are simple, easy to use.
[accompanying drawing explanation]
Fig. 1 is the structural representation of a kind of portable multi-function combination ladder of the present invention;
Fig. 2 is " luggage trolley " state diagram of a kind of portable multi-function combination ladder of the present invention;
Fig. 3 is " pedal ladder " state diagram of a kind of portable multi-function combination ladder of the present invention;
Fig. 4 is " humanoid ladder " state diagram of a kind of portable multi-function of the present invention combination ladder;
Fig. 5 is " chair " state diagram of a kind of portable multi-function combination ladder of the present invention;
Fig. 6 is " yi shaped ladder " state diagram of a kind of portable multi-function combination ladder of the present invention;
Fig. 7 is the structural representation enlarged drawing of mechanical lock in a kind of portable multi-function combination ladder of the present invention.
[detailed description of the invention]
In order to make object of the present invention, technical scheme and advantage clearly understand, the present invention is described in more detail.
Refer to Fig. 1-Fig. 5, the invention provides a kind of portable multi-function combination ladder, comprise: pedal ladder 1, there is the extension ladder 2 of Telescopic, described pedal ladder 1 end is connected by rotary positioning mechanism 3 with extension ladder 2 end, and this pedal ladder 1 is located with the rotation that extension ladder 2 realizes different angles by rotary positioning mechanism 3;
Described pedal ladder 1 comprises two columns, 11, three the first pedals 12, second pedal 13 large compared with the first pedal 12 plate face, the panel for having one fixed width of described first pedal 12 and the second pedal 13, described three the first pedals 12 form revolute pair by connecting rod 14, be positioned at the first middle pedal 12 and be provided with the first U-shaped pin 121 with column 11 junction, described column 11 and the junction of the first pedal 12 are provided with the first identical through hole 122 of size for making the first U-shaped pin 121 pass, second through hole 123, third through-hole 124, described first through hole 123, second through hole 123 circle center line connecting is parallel to the ground, described second through hole 123, third through-hole 123 circle center line connecting is parallel with column 11, the first spring 125 is provided with between described column 11 and the first U-shaped pin 121, described connecting rod 14 is the link gear of the first pedal 14, first U-shaped pin 121, first through hole 122, second through hole 123, third through-hole 124, first spring 125 forms the position-limit mechanism of the first pedal 12, this position-limit mechanism is arranged on the first middle pedal 12, play the effect that carrying first pedal 12 is stressed simultaneously, when overturning, by the plug of the first U-shaped pin 121, 1245 °, first pedal in the middle of realizing, 90 °, the rotation of the different angles such as 180 °, meanwhile, the first pedal 12 being positioned at both sides under the effect of gear-connecting rod 14 along with the rotation of middle first pedal 12, namely the synchronous axial system of three the first pedals 12 is achieved, afterwards by stirring the first spring 125, under the effect of the first spring 125, first U-shaped pin 121 inserts in through hole, thus achieve rotation and the locking of the first pedal 12,
Described second pedal 13 is located at two columns 11 one end away from extension ladder 2 by switching mechanism 15, this second pedal 13 realizes upset location by switching mechanism 15 between two columns 11, described switching mechanism 15 comprises: the second spring (not indicating in figure) being located at the second pedal 13 and column 11 junction successively, second U-shaped pin (not indicating in figure), by the plug of the second U-shaped pin, realize the different angles such as 1360 °, the second pedal to rotate, afterwards by stirring the second spring, under the effect of the second spring, second U-shaped pin inserts in through hole, thus achieve rotation and the locking of the second pedal 13,
Described rotary positioning mechanism 3 is provided with drag link mechanism 31, this drag link mechanism 31 rotates location by rotary positioning mechanism 3 in combination ladder end, this rotary positioning mechanism 3 comprises: axis of rotation 35, be located at the pad 36 at axis of rotation 35 both ends respectively, this pad 36 is provided with at least one pin-and-hole 37, described pull bar 32 one end is provided with and is fixed with backstay 38, and this backstay 38 is provided with latch 39; Described drag link mechanism 31 comprises: two pull bars 32, junction plate 33 for being coupled together pull bar 32 end, this pull bar 32 is inserted in pin-and-hole 37 connection realizing drag link mechanism 31 and rotary positioning mechanism 3 by latch 39, this junction plate 33 is provided with well 34 away from the side of rotary positioning mechanism 3; By pressing backstay 38, realize being separated of latch 39 and pin-and-hole 37 on pad 36, now, pull bar 32 can rotate freely, and when combination ladder is packed up (as Fig. 1), drag link mechanism 3 can be positioned at the side of pedal ladder 1 away from telescopic ladder 2, namely think that drag link mechanism 3 and telescopic ladder 2 connect as one, now again press backstay 38, latch 39 inserts in the pin-and-hole 37 of pad 36 again, thus realizes the fixing of drag link mechanism 3 angle;
Described extension ladder 2 comprises: outside staircase 21, manhole ladder 22, described outside staircase 21 and the end pins of manhole ladder 22 are connected with for realizing the flexible mechanical lock 29 of extension ladder 2, this mechanical lock 29 comprises: be located at the fixed bar 23 on manhole ladder 22 support arm, be sheathed on two connecting rods 24 in fixed bar 23, be fixed at the linkage 25 between two connecting rods 24, described connecting rod 24 is connected with extension ladder 2 by pin 26 away from the end of linkage 25, this pin 26 outer cover is provided with the 3rd spring 28, described linkage 25 be provided with for, described driving lever 27 is inserted in the driving lever 27 realizing pin 26 plug, on the end winding support of this driving lever 27 and two linkages 25, by stirring driving lever 27, extracting of monolateral pin 26 is achieved under the effect of linkage 25, simultaneously under the effect of connecting rod 24, the pin 26 of another side is pulled out simultaneously, now manhole ladder 22 and outside staircase 21 produce displacement, after moving to certain position, unclamp driving lever 27, connecting rod 24 makes the pin 26 on both sides reset under the effect of the 3rd spring 28 simultaneously, realize manhole ladder 22 and namely complete the flexible of extension ladder 2 and locking with the fixing of outside staircase 21,
Mobile in order to make combination ladder be convenient to when using as luggage trolley, two support arms of described extension ladder 2 are away from the side universal wheel (not indicating in figure) of pedal ladder 1 and directional wheel (not indicating in figure).
Operating principle and the course of work:
When not using, pedal ladder 1 is affixed with a side of extension ladder 2, now, pedal ladder 1 does not produce relative rotation with extension ladder 2, first pedal 12 and the second pedal 13 are in same level with column, extension ladder 2 is in the state of shrinking and equal with foot-operated terraced 1 length, and now combination ladder structure as shown in Figure 1.
When needs movement or when it can be used as luggage trolley to use (structure as shown in Figure 2), pressing backstay 38, latch 39 is separated with pin-and-hole 37 on pad 36, afterwards pull bar 32 is rotated along axis of rotation 35, after rotating to certain position, again press backstay 38, latch 39 inserts in the pin-and-hole 37 of pad 36 again, now drag link mechanism 3 is fixed in an angle with pedal ladder 1, and now people holds junction plate 33, and combination ladder is namely removable under the effect of universal wheel and directional wheel.
When needs it can be used as " pedal ladder " to use (structure as shown in Figure 3), pedal ladder 1 and extension ladder 2 rotate 180 ° under the effect of rotary positioning mechanism 3, now pedal ladder 1 and extension ladder 2 are in same level, now by changing the length of telescopic ladder 2, make telescopic ladder 2 equal with the length of pedal ladder 1, meanwhile, by the rotation of the first pedal 12 and the second pedal 13, make the first pedal 12, second pedal 13 be an angle with column, now namely form " pedal ladder "; When needs use drag link mechanism 3, aforesaid operations can be adopted, drag link mechanism 3 and foot-operated ladder is made to need angle now to form structure as shown in Figure 4 in one, be " humanoid ladder ", well 34 simultaneously on junction plate 33 can hold the instrument needed for various operating personnel, does not stop upper and lower combination ladder carry out picking and placeing of instrument without the need to operating personnel.
When people needs rest, only on the basis of " pedal ladder ", the first pedal 12 need be rotated, make the foot-operated one side of the first pedal 12 and column 11 be in same level and get final product (as shown in Figure 5), now people is seated on the second pedal 13, and back-resting can be had a rest on the first pedal 12.
When needs it can be used as " yi shaped ladder " to use (structure as shown in Figure 6), pedal ladder 1 and extension ladder 2 rotate and are in same level under the effect of rotary positioning mechanism 3, now namely form " yi shaped ladder ", when length is inadequate, by changing the length of telescopic ladder 2, it is made to reach artificial needs.
Should be understood that, in those skilled in the art, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.

Claims (8)

1. a portable multi-function combination ladder, it is characterized in that, comprise: pedal ladder (1), there is the extension ladder (2) of Telescopic, described pedal ladder (1) end is connected by rotary positioning mechanism (3) with extension ladder (2) end, and the rotation that this pedal ladder (1) and extension ladder (2) realize different angles by rotary positioning mechanism (3) is located;
Described pedal ladder (1) comprises two columns (11), some first pedals (12), second pedal (13) large compared with the first pedal (12) plate face; Described some first pedals (12) form revolute pair by connecting rod (14); Described second pedal (13) is located at two columns (11) one end away from extension ladder (2) by switching mechanism (15), and this second pedal (13) realizes upset location by switching mechanism (15) between two columns (11).
2. a kind of portable multi-function combination ladder according to claim 1, it is characterized in that, described rotary positioning mechanism (3) is provided with drag link mechanism (31), this drag link mechanism (31) rotates location by rotary positioning mechanism (3) in combination ladder end, this drag link mechanism (31) comprising: two pull bars (32), junction plate (33), one end of described two pull bars (32) is located at rotary positioning mechanism (3) end respectively, the other end is connected by junction plate (33), this junction plate (33) is provided with well (34) away from the side of rotary positioning mechanism (3).
3. a kind of portable multi-function combination ladder according to claim 2, it is characterized in that, described rotary positioning mechanism (3) comprising: axis of rotation (35), be located at the pad (36) at axis of rotation (35) both ends respectively, this pad (36) is provided with at least one pin-and-hole (37), described pull bar (32) one end is provided with and is fixed with backstay (38), this backstay (38) is provided with latch (39), described pull bar (32) is inserted in pin-and-hole (37) connection realizing drag link mechanism (31) and rotary positioning mechanism (3) by latch (39), this drag link mechanism (31) realizes being separated thus realizing rotating freely of drag link mechanism (31) of latch (39) and pin-and-hole (37) by pressing backstay (38).
4. a kind of portable multi-function combination ladder according to claim 1, it is characterized in that, described first pedal (12) and column (11) junction are provided with the first U-shaped pin (121), described column (11) and the junction of the first pedal (12) are provided with identical the first through hole (122) of size for making the first U-shaped pin (121) pass, second through hole (123), third through-hole (124), described first through hole (123), second through hole (123) circle center line connecting is parallel to the ground, described second through hole (123), third through-hole (123) circle center line connecting is parallel with column (11), the first spring (125) is provided with between described column (11) and the first U-shaped pin (121), described first pedal (12) realizes rotating and locking by the plug of the first U-shaped pin (121).
5. a kind of portable multi-function combination ladder according to claim 1, it is characterized in that, described switching mechanism (15) comprising: the second spring, the second U-shaped pin of being located at the second pedal (13) and column (11) junction successively, described second pedal (13) realizes rotation and the locking of the second pedal (13) by the plug of the second U-shaped pin.
6. a kind of portable multi-function combination ladder according to claim 1, it is characterized in that, described extension ladder (2) comprising: outside staircase (21), manhole ladder (22), and described outside staircase (21) and the end pins of manhole ladder (22) are connected with for realizing the flexible mechanical lock (29) of extension ladder (2).
7. a kind of portable multi-function combination ladder according to claim 6, it is characterized in that, described mechanical lock (29) comprising: be located at the fixed bar (23) on manhole ladder (22) support arm, be sheathed on two connecting rods (24) in fixed bar (23), be fixed at the linkage (25) between two connecting rods (24), described connecting rod (24) is connected with extension ladder (2) by pin (26) away from the end of linkage (25), this pin (26) outer cover is provided with the 3rd spring (28), described linkage (25) be provided with for, described driving lever (27) is inserted in the driving lever (27) realizing pin (26) plug, on the end winding support of this driving lever (27) and two linkages (25).
8. a kind of portable multi-function combination ladder according to claim 1, is characterized in that, two support arms of described extension ladder (2) are away from the side universal wheel of pedal ladder (1) and directional wheel.
CN201510369834.4A 2015-06-29 2015-06-29 Portable multifunctional combined ladder Pending CN105134065A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510369834.4A CN105134065A (en) 2015-06-29 2015-06-29 Portable multifunctional combined ladder

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Application Number Priority Date Filing Date Title
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CN105134065A true CN105134065A (en) 2015-12-09

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106050121A (en) * 2016-08-18 2016-10-26 中国地质大学(武汉) Multifunctional combined ladder
CN107575154A (en) * 2017-09-27 2018-01-12 西南大学 A kind of herringbone ladder device with delivery function
CN110331930A (en) * 2019-07-15 2019-10-15 淄博一凡针织有限公司 A kind of ladder for indoor interlayer with storage function

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1816313A1 (en) * 2006-02-07 2007-08-08 Telesteps AB Collapsible stepladder
CN200985738Y (en) * 2006-11-27 2007-12-05 苏正平 Telescopic ladder
CN202627943U (en) * 2012-05-29 2012-12-26 苏州飞华铝制工业有限公司 Positioning mechanism for extension of extension ladder
AU2014100455A4 (en) * 2014-01-16 2014-06-12 Kang-Shuo Yeh Multi-purpose ladder with three-pipe rungs
CN204186287U (en) * 2014-10-24 2015-03-04 福州大学 A kind of portable multi-function combination ladder

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1816313A1 (en) * 2006-02-07 2007-08-08 Telesteps AB Collapsible stepladder
CN200985738Y (en) * 2006-11-27 2007-12-05 苏正平 Telescopic ladder
CN202627943U (en) * 2012-05-29 2012-12-26 苏州飞华铝制工业有限公司 Positioning mechanism for extension of extension ladder
AU2014100455A4 (en) * 2014-01-16 2014-06-12 Kang-Shuo Yeh Multi-purpose ladder with three-pipe rungs
CN204186287U (en) * 2014-10-24 2015-03-04 福州大学 A kind of portable multi-function combination ladder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106050121A (en) * 2016-08-18 2016-10-26 中国地质大学(武汉) Multifunctional combined ladder
CN107575154A (en) * 2017-09-27 2018-01-12 西南大学 A kind of herringbone ladder device with delivery function
CN110331930A (en) * 2019-07-15 2019-10-15 淄博一凡针织有限公司 A kind of ladder for indoor interlayer with storage function

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Application publication date: 20151209