CN104196436B

CN104196436B - A kind of ladder

Info

Publication number: CN104196436B
Application number: CN201410390570.6A
Authority: CN
Inventors: 薛其熊
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-08-08
Filing date: 2014-08-08
Publication date: 2016-02-17
Anticipated expiration: 2034-08-08
Also published as: CN104196436A

Abstract

The present invention relates to a kind of ladder, be intended to solve the problem that in prior art, function of ladder is single, comprise female ladder, son ladder, the upper end of described son ladder and the upper end of mother's ladder, together with being transferred by hinge, the female stock of every root is equipped with a U-type groove; Each U-type groove is formed by a flat board with perpendicular to two risers of flat board; Front side and the rear side of described female stock are equipped with female chute, and each riser inside wall of U-type groove is equipped with a draw runner, and two draw runners in U-type groove are separately positioned in two female chutes on female stock; The front side of sub-stock and rear side are equipped with sub-chute; Each female stock is all socketed with a fixture block; Each female ladder is equipped with draw-in groove.The present invention can change the length of ladder by bending, all can use in higher position and lower position operation, solves current function of ladder single and use restricted problem.

Description

A kind of ladder

Technical field

The present invention relates to a kind of ladder.

Background technology

Current function of ladder is single; The length of vertical ladder is fixing, can not regulate length, and vertical ladder is oversize sometimes can not apply with in less space, and vertical ladder is too short sometimes can not get too high article; Vertical ladder needs by using on the wall, and independently can not stand and use on the ground; Double ladder energy independent stations uses on the ground, but double ladder is often too short, can not in work high above the ground, and use is restricted; If be equipped with two ladders simultaneously, not only take up room, and cost is high.

Summary of the invention

The invention provides a kind of ladder, be intended to solve the problem that in prior art, function of ladder is single.

In order to solve above technical problem, the present invention is achieved through the following technical solutions: a kind of ladder, comprise by the parallel female stock in two, left and right and be connected in mother's ladder that the female quarter butt between two female stocks forms, by the parallel sub-stock in two, left and right be connected in the son ladder that the sub-quarter butt between two root stocks forms, the upper end of described son ladder and the upper end of mother's ladder, together with being transferred by hinge, the female stock of every root is equipped with a U-type groove matched with female stock; Each U-type groove is formed by a flat board with perpendicular to two risers of flat board; The front side of described female stock and rear side are equipped with the female chute being parallel to female stock, and each riser inside wall of U-type groove is equipped with a draw runner matched with female chute, and two draw runners in U-type groove are separately positioned in two female chutes on female stock; Lock is stated the front side of sub-stock and rear side and is equipped with and is parallel to sub-stock and the sub-chute matched with draw runner; Group ladder and mother terraced in the same plane time, sub-chute is with female chute one_to_one corresponding and communicate; Each female stock is all socketed with one for limiting the fixture block of U-type groove position, each fixture block is connected to the elastica composition at U-shaped piece of two ends by one U-shaped piece and one; Each female ladder is equipped with and the U-shaped piece of draw-in groove matched, when being positioned at draw-in groove for U-shaped piece, the part of U-shaped piece is positioned at draw-in groove, and another part is for limiting the position of U-type groove and being positioned at outside draw-in groove.

Further, described female ladder and son terraced between be connected with connecting rod, described connecting rod is made up of sub-connecting rod and female connecting rod; The a end switching of described sub-connecting rod on sub-ladder, together with the b of sub-connecting rod end and the c of female connecting rod hold and transfer; The d end of female connecting rod is transferred on female ladder by dismountable bearing pin; Not only can use as vertical ladder, and can use as double ladder.

Further, described female ladder is also provided with one for tying down the rope of bearing pin; When bearing pin is plugged on female ladder, ties down bearing pin by after rope, can prevent bearing pin from coming off.

Further, the length of described sub-chute is the half of U-type groove length, and described female track length is 1.6 times of U-type groove length, and described draw-in groove is the half of U-type groove length apart from the length of the upper end of female stock; When U-type groove half embraces sub-stock, when second half embraces female stock, fixture block is stuck in draw-in groove, U-type groove can be fixed, thus keeps the state of vertical ladder; Female track length is 1.6 times of U-type groove length, is convenient to son ladder and mother's ladder when folding, is not blocked by U-type groove.

Further, described connecting rod has two and is separately positioned on left side and the right side of son ladder; It is more firm when ladder is in double ladder state.

Compared with prior art advantage of the present invention is: the present invention can change the length of ladder by bending, all can use in higher position and lower position operation, solves current function of ladder single and use restricted problem.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, the invention will be further described:

Fig. 1 is structural representation of the present invention;

The structural representation that Fig. 2 is the present invention when being double ladder;

Fig. 3 is the partial enlarged drawing at A place in Fig. 2;

Fig. 4 is the structural representation of U-type groove in the present invention.

Detailed description of the invention

Consult Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of ladder, comprise by the parallel female stock 11 in two, left and right and be connected in mother's ladder 1 that the female quarter butt 12 between two female stocks 11 forms, by the parallel sub-stock 21 in two, left and right be connected in sub-ladder 2 that the sub-quarter butt 22 between two root stocks 21 forms, be connected to connecting rod 3 between female ladder 1 and sub-ladder 2, together with being transferred by hinge 4 in the described son ladder upper end of 2 and the upper end of mother's ladder 1; Described connecting rod 3 is made up of sub-connecting rod 31 and female connecting rod 32, the switching of a of described sub-connecting rod 31 end on son ladder 2, together with the b end of sub-connecting rod 31 and the c of female connecting rod 32 hold and transfer; The d end of female connecting rod 32 is transferred on female ladder 1 by dismountable bearing pin 8; The female stock 11 of every root is equipped with a U-type groove 5 matched with female stock 11; Each U-type groove 5 is formed by a flat board 51 with perpendicular to two risers 52 of dull and stereotyped 51; The front side of described female stock 11 and rear side are equipped with the female chute 111 being parallel to female stock 11, each riser 52 inside wall of U-type groove 5 is equipped with a draw runner 521 matched with female chute 111, two draw runners 521 in same U-type groove 5 are separately positioned in two female chutes 111 on same female stock 11; The front side of described sub-stock 21 and rear side are equipped with and are parallel to sub-stock 21 and the sub-chute 211 matched with draw runner 521; Group ladder 2 and mother's ladder 1 in the same plane time, sub-chute 211 is with female chute 111 one_to_one corresponding and communicate; Each female stock 11 is all socketed with one for limiting the fixture block 6 of U-type groove 5 position, the elastica 62 that each fixture block 6 is connected to U-shaped piece of 61 two ends by U-shaped piece 61 and forms; Each female ladder 1 is equipped with one with U-shaped piece 61 draw-in groove matched 13, when being positioned at draw-in groove 13 for U-shaped piece 61, the part of U-shaped piece 61 is positioned at draw-in groove 13, and another part is for limiting the position of U-type groove 5 and being positioned at outside draw-in groove 13; Described female ladder 1 is also provided with one for tying down the rope 7 of bearing pin 8; The length of described sub-chute 211 is half of U-type groove 5 length, and described female chute 111 length is 1.6 times of U-type groove 5 length, and described draw-in groove 13 is the half of U-type groove 5 length apart from the length of the upper end of female stock 11; Described connecting rod 3 has two and is separately positioned on left side and the right side of son ladder 2.

Consult Fig. 1, when becoming double ladder state, son ladder 2 and mother's ladder 1 are converted into V-shaped, bearing pin 8 is plugged on female ladder 1 through female connecting rod 32, is then strained by rope 7 and ties down bearing pin 8, preventing bearing pin 8 from coming off; Then the angle between adjustment ladder 2 and mother's ladder 1, makes connecting rod 3 stretching; Double ladder has been out of shape.

Consult Fig. 4, when becoming vertical ladder state, bearing pin 8 is pulled down, make son ladder 2 and mother's ladder 1 be positioned in same plane, slip U-type groove 5, makes U-type groove 5 half embrace sub-stock 21, second half embraces female stock 2, then stick in draw-in groove 13 by U-shaped piece 61, U-shaped piece 61 can stable be connected in draw-in groove 13 under the effect of elastica 62, and U-type groove 5 can be fixed by U-shaped piece 61 part exposed; Vertical ladder has been out of shape.

Namely the present invention can regard vertical ladder and use, can use as double ladder again, namely can lean against on wall and use, can independent stations use on the ground again, all can use in higher position and lower position operation, solve the problem that current function of ladder is single, and can fold, take up room less.

The foregoing is only specific embodiments of the invention, but technical characteristic of the present invention is not limited thereto, any those skilled in the art is in the field of the invention, and the change done or modification are all encompassed among the scope of the claims of the present invention.

Claims

1. a ladder, comprise by the parallel female stock (11) in two, left and right and be connected in mother's ladder (1) that the female quarter butt (12) between two female stocks (11) forms, by the parallel sub-stock (21) in two, left and right be connected in the sub-ladder (2) that the sub-quarter butt (22) between two root stocks (21) forms, the described upper end of son ladder (2) and the upper end of mother's ladder (1) be is characterized in that together with being transferred by hinge (4): the female stock (11) of every root is equipped with a U-type groove (5) matched with female stock (11); Each U-type groove (5) is formed by a flat board (51) with perpendicular to two risers (52) of dull and stereotyped (51); The front side of described female stock (11) and rear side are equipped with the female chute (111) being parallel to female stock (11), each riser (52) inside wall of U-type groove (5) is equipped with a draw runner (521) matched with female chute (111), two draw runners (521) in U-type groove (5) are separately positioned in two female chutes (111) on female stock (11);

The front side of described sub-stock (21) and rear side are equipped with and are parallel to sub-stock (21) and the sub-chute (211) matched with draw runner (521); Group ladder (2) and mother's ladder (1) in the same plane time, sub-chute (211) is with female chute (111) one_to_one corresponding and communicate;

Each female stock (11) is all socketed with one for limiting the fixture block (6) of U-type groove (5) position, each fixture block (6) is connected to elastica (62) composition at U-shaped piece of (61) two ends by one U-shaped piece (61) and one; Each female ladder (1) is equipped with the draw-in groove (13) matched with U-shaped piece (61), when U-shaped piece (61) are positioned at draw-in groove (13), the part of U-shaped piece (61) is positioned at draw-in groove (13), and another part is for limiting the position of U-type groove (5) and being positioned at draw-in groove (13) outward.

2. a kind of ladder according to claim 1, it is characterized in that: be connected with connecting rod (3) between described female ladder (1) and sub-ladder (2), described connecting rod (3) is made up of sub-connecting rod (31) and female connecting rod (32); The a end switching of described sub-connecting rod (31) on son ladder (2), together with the b of sub-connecting rod (31) end and the c of female connecting rod (32) hold and transfer; The d end of female connecting rod (32) is transferred on female ladder (1) by dismountable bearing pin (8).

3. a kind of ladder according to claim 2, is characterized in that: described female ladder (1) is also provided with one for tying down the rope (7) of bearing pin (8).

4. a kind of ladder according to claim 1, it is characterized in that: the length of described sub-chute (211) is the half of U-type groove (5) length, described female chute (111) length is 1.6 times of U-type groove (5) length, and described draw-in groove (13) is the half of U-type groove (5) length apart from the length of the upper end of female stock (11).

5. a kind of ladder according to claim 2, is characterized in that: described connecting rod (3) has two and is separately positioned on left side and the right side of son ladder (2).