CN203701934U

CN203701934U - Improved metal ladder

Info

Publication number: CN203701934U
Application number: CN201420088053.9U
Authority: CN
Inventors: 何淇会
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-02-23
Filing date: 2014-02-23
Publication date: 2014-07-09
Anticipated expiration: 2024-02-23

Abstract

The utility model relates to the technical field of daily articles for people, particularly to an improved metal ladder. Bilaterally-symmetrical top pedals are rotationally connected together through connecting buckling buttons, and two side surfaces of each top pedal are fixed at upper ends of two hollow ladder rods respectively; ladder rod sleeves are fixed in outer contour surface positions, which are 0.12-0.14 cm away from lower ends, of the hollow ladder rods; a sleeve shrinkage hole is formed in the lower end opening of each ladder rod sleeve to be in sliding fit with a middle outer circular surface of an adjusting turn plate; an upper turn plate bulge loop and a lower turn plate bulge loop at two ends of each middle outer circular surface are in sliding fit with upper and lower end surfaces of each sleeve shrinkage hole respectively; an adjusting hand wheel is arranged on the outer circle of each lower turn plate bulge loop; a turn plate nut of each adjusting turn plate is in threaded connection and fixed with an adjusting screw; an angle ball head is arranged at the lower end of each adjusting screw to be placed on a hemispherical concave surface of a foot base bottom disc; a hemispherical cover surface of a bottom disc cover plate covers the upper half part of each angle ball head; an anti-skid buckling hole is formed in the upper end of the outer contour surface of each ladder rod sleeve, and two anti-skid buckling holes in a divergent state are connected through an anti-skid adjusting belt.

Description

A kind of metal ladder that improves

Technical field

The utility model relates to people's daily class technical field, relates in particular to a kind of metal ladder that improves.

Background technology

Along with the development of building trade, in building, loft is more and more common, conventionally in the space of loft, needs to build stair, but existing stair all need to be fixed on floor, can take so a large amount of spaces, make the result of use in space be difficult to reach perfect.Metal ladder is easier to be accepted because of its motor-driven clever advantage ratio such as collapsible, light and handy, but using when various ladder, running into ground is the situation of slope or step etc., can not be the easily stable ladder of putting well, and easily topple, known folding stair uses not ideal.

Summary of the invention

In order to overcome above-mentioned deficiency, the utility model provides a kind of structural strength high, and the ladder of safe and reliable adjustable legs height, reaches the object that still can steadily use in the out-of-flatness such as slope or step ground environment.

The utility model is by the following technical solutions:

A kind of metal ladder that improves, comprise link button, top pedal, hollow terraced bar, middle pedal, play step and anti-slip regulation band, described link button can rotation link together symmetrical described top pedal, and the two sides of each top pedal are separately fixed at 2 above-mentioned hollow terraced bar upper ends, on hollow terraced bar described in two below the pedal of top, often space between 0.22 to 0.24 meter, have one in the middle of pedal, have the middle pedal of 6 to 8 steps, described hollow terraced bar is having step apart from, 0.15 to 0.17 meter, its terraced bar lower surface place, as improvement: described hollow terraced bar is fixed with terraced rod sleeve apart from outer surface place, 0.12 to 0.14 centimetre of lower end, ladder rod sleeve lower port place has sleeve shrinkage cavity and the middle periphery that regulates rotating disk to be slidably matched, on the rotating disk at middle periphery two ends, bulge loop and rotating disk lower convex ring are slidably matched with the both ends of the surface up and down of described sleeve shrinkage cavity respectively, on described rotating disk, in bulge loop cylindrical and described hollow terraced bar, between contoured surface, there is 1 to 3 millimeter of gap, on described rotating disk, between bulge loop and described terraced bar lower surface, have 3 to 5 millimeters of gaps, on described rotating disk lower convex ring cylindrical, there is adjusting handle, regulate the rotating disk nut of rotating disk to be threaded fixing with described adjusting screw(rod), adjusting screw(rod) lower end has angle bulb to be placed on half spherical-concave-surface on runners chassis, the hemisphere capping of chassis cover plate covers described angle bulb the first half, and 2 to 4 bolts of lower base are fixed on described chassis cover plate on described runners chassis, there is an anti-skidding button hole described terraced rod sleeve outline upper end, and becomes between the anti-skidding button hole described in two of fork state to have anti-slip regulation band to be connected.

As further improvement: described hollow terraced bar is fixed with guide runner on the interior contoured surface at 0.12 to 0.14 centimetre, distance terraced bar lower surface place, between the guiding endoporus of guide runner and the bulb guide peg of adjusting screw(rod) for being slidably matched.

As further improvement: described runners tray bottom has improved mat.

The beneficial effects of the utility model are:

1. run into ground and have height time straggly, be slidably matched by means of regulating between the middle periphery of rotating disk and the sleeve shrinkage cavity at terraced rod sleeve lower port place, and on rotating disk on adjusting rotating disk bulge loop and rotating disk lower convex ring respectively with the both ends of the surface up and down of the described sleeve shrinkage cavity position-limiting action that is slidably matched, rotate adjusting handle by hand, regulate the rotating disk nut of rotating disk and described adjusting screw(rod) to relatively rotate, just can realize function of regulating height thereof.

2. run into ground inclination not at ordinary times, the sphere between the angle bulb of adjusting screw(rod) lower end and runners chassis and chassis cover plate is combined, and can automatically carry out tilt adjustments to uneven ground.

Accompanying drawing explanation

Fig. 1 is the utility model entirety side view.

Fig. 2 is the local amplification profile at angle bulb 50 positions of living in Fig. 1.

Fig. 3 is the lateral view of Fig. 1.

Below in conjunction with drawings and Examples, the utility model is described in further detail:

In conjunction with Fig. 1, Fig. 2 and Fig. 3, a kind of metal ladder that improves, comprise link button 21, napex pedal 23, hollow terraced bar 24, middle pedal 25, play step 29 and anti-slip regulation band 88, described link button 21 can rotation link together symmetrical described top pedal 23, and the two sides of each top pedal 23 are separately fixed at 2 above-mentioned hollow terraced bar 24 upper ends, on hollow terraced bar 24 described in below 23 two of top pedal, often space between 0.22 to 0.24 meter, have one in the middle of pedal 25, have the middle pedal 25 of 6 to 8 steps, described hollow terraced bar 24 is having step 29 apart from its, 0.15 to 0.17 meter, 26 place, terraced bar lower surface, as improvement: described hollow terraced bar 24 is fixed with terraced rod sleeve 43 apart from outer surface place, 0.12 to 0.14 centimetre of lower end, ladder rod sleeve 43 lower port places have sleeve shrinkage cavity 47 and the middle periphery 67 that regulates rotating disk 60 to be slidably matched, on the rotating disk at middle periphery 67 two ends, bulge loop 61 and rotating disk lower convex ring 62 are slidably matched with the both ends of the surface up and down of described sleeve shrinkage cavity 47 respectively, on described rotating disk, between bulge loop 61 cylindricals and the described interior contoured surface of hollow terraced bar 24, there is 1 to 3 millimeter of gap, on described rotating disk, between bulge loop 61 and described terraced bar lower surface 26, have 3 to 5 millimeters of gaps, on described rotating disk lower convex ring 62 cylindricals, there is adjusting handle 66, regulate the rotating disk nut 65 of rotating disk 60 to be threaded fixing with described adjusting screw(rod) 56, adjusting screw(rod) 56 lower ends have angle bulb 50 to be placed on half spherical-concave-surface 59 on runners chassis 52, the hemisphere capping 58 of chassis cover plate 57 covers described angle bulb 50 the first half, and 2 to 4 bolts of lower base 53 are fixed on described chassis cover plate 57 on described runners chassis 52, there is an anti-skidding button hole 28 described terraced rod sleeve 43 outline upper ends, and become between the anti-skidding button hole 28 described in two of fork state to have anti-slip regulation band 88 to be connected.

As further improvement: described hollow terraced bar 24 is fixed with guide runner 41 on the interior contoured surface at 0.12 to 0.14 centimetre, distance 26 place, terraced bar lower surface, between the guiding endoporus 45 of guide runner 41 and the bulb guide peg 54 of adjusting screw(rod) 56 for being slidably matched.

As further improvement: improved mat 51 is arranged at described 52 bottoms, runners chassis.

In embodiment:

1 secondary link button 21 can rotation link together symmetrical 2 top pedals 23, and the two sides of each top pedal 23 are separately fixed at 2 above-mentioned hollow terraced bar 24 upper ends; On hollow terraced bar 24 described in below 23 two of top pedal, often space between 0.22 meter, have one in the middle of pedal 25, have pedals 25 in the middle of 7 steps, described hollow terraced bar 24 is having step 29 apart from its, 0.16 meter, 26 place, terraced bar lower surface.

Described hollow terraced bar 24 is fixed with terraced rod sleeve 43 apart from outer surface place, 0.12 to 0.14 centimetre of lower end, ladder rod sleeve 43 lower port places have sleeve shrinkage cavity 47 and the middle periphery 67 that regulates rotating disk 60 to be slidably matched, and on the rotating disk at middle periphery 67 two ends, bulge loop 61 and rotating disk lower convex ring 62 are slidably matched with the both ends of the surface up and down of described sleeve shrinkage cavity 47 respectively; On described rotating disk, between bulge loop 61 cylindricals and the described interior contoured surface of hollow terraced bar 24, there are 2 millimeters of gaps, on described rotating disk, between bulge loop 61 and described terraced bar lower surface 26, have 4 millimeters of gaps; On described rotating disk lower convex ring 62 cylindricals, there is adjusting handle 66; Regulate the rotating disk nut 65 of rotating disk 60 to be threaded fixing with described adjusting screw(rod) 56, adjusting screw(rod) 56 lower ends have angle bulb 50 to be placed on half spherical-concave-surface 59 on runners chassis 52, the hemisphere capping 58 of chassis cover plate 57 covers described angle bulb 50 the first half, and 2 to 4 bolts of lower base 53 are fixed on described chassis cover plate 57 on described runners chassis 52; There is an anti-skidding button hole 28 described terraced rod sleeve 43 outline upper ends, and become between the anti-skidding button hole 28 described in two of fork state to have anti-slip regulation band 88 to be connected.

Described hollow terraced bar 24 is fixed with guide runner 41 on the interior contoured surface at 0.13 centimetre, 26 place, terraced bar lower surface of distance, between the guiding endoporus 45 of guide runner 41 and the bulb guide peg 54 of adjusting screw(rod) 56 for being slidably matched.Improved mat 51 is arranged at described 52 bottoms, runners chassis.

Run into ground and have height time straggly, be slidably matched by means of regulating between the middle periphery 67 of rotating disk 60 and the sleeve shrinkage cavity 47 at terraced rod sleeve 43 lower port places, and regulate bulge loop 61 and rotating disk lower convex ring 62 on the rotating disk on rotating disk 60 respectively with the both ends of the surface up and down of described sleeve shrinkage cavity 47 position-limiting action that is slidably matched, rotate adjusting handle 66 by hand, regulate the rotating disk nut 65 of rotating disk 60 to relatively rotate with described adjusting screw(rod) 56, just can realize function of regulating height thereof.

Run into ground inclination not at ordinary times, the sphere between the angle bulb 50 of adjusting screw(rod) 56 lower ends and runners chassis 52 and chassis cover plate 57 is combined, and can automatically carry out tilt adjustments to uneven ground.

Claims

1. one kind is improved metal ladder, comprise link button (21), top pedal (23), hollow terraced bar (24), middle pedal (25), play step (29) and anti-slip regulation band (88), described link button (21) can rotation link together symmetrical described top pedal (23), and the two sides of each top pedal (23) are separately fixed at 2 above-mentioned hollow terraced bar (24) upper ends, on hollow terraced bar (24) described in following two of top pedal (23), often space between 0.22 to 0.24 meter, have one in the middle of pedal (25), have the middle pedals of 6 to 8 steps (25), described hollow terraced bar (24) has had step (29) locating 0.15 to 0.17 meter of apart from its terraced bar lower surface (26), it is characterized in that: described hollow terraced bar (24) is fixed with terraced rod sleeve (43) apart from outer surface place, 0.12 to 0.14 centimetre of lower end, ladder rod sleeve (43) lower port place has sleeve shrinkage cavity (47) and the middle periphery (67) that regulates rotating disk (60) to be slidably matched, on the rotating disk at middle periphery (67) two ends, bulge loop (61) and rotating disk lower convex ring (62) are slidably matched with the both ends of the surface up and down of described sleeve shrinkage cavity (47) respectively, between (61) cylindrical of bulge loop on described rotating disk and the described interior contoured surface of hollow terraced bar (24), there is 1 to 3 millimeter of gap, between bulge loop on described rotating disk (61) and described terraced bar lower surface (26), have 3 to 5 millimeters of gaps, on described rotating disk lower convex ring (62) cylindrical, there is adjusting handle (66), regulate the rotating disk nut (65) of rotating disk (60) to be threaded fixing with adjusting screw(rod) (56), adjusting screw(rod) (56) lower end has angle bulb (50) to be placed on half spherical-concave-surface (59) on runners chassis (52), the hemisphere capping (58) of chassis cover plate (57) covers described angle bulb (50) the first half, and 2 to 4 bolts of lower base (53) are fixed on described chassis cover plate (57) on described runners chassis (52), there is an anti-skidding button hole (28) described terraced rod sleeve (43) outline upper end, and becomes between the anti-skidding button hole (28) described in two of fork state to have anti-slip regulation band (88) to be connected.

2. a kind of metal ladder that improves according to claim 1, it is characterized in that: described hollow terraced bar (24) is located to be fixed with guide runner (41) on the interior contoured surface of 0.12 to 0.14 centimetre in distance terraced bar lower surface (26), between the guiding endoporus (45) of guide runner (41) and the bulb guide peg (54) of adjusting screw(rod) (56) for being slidably matched.

3. a kind of metal ladder that improves according to claim 1, is characterized in that: improved mat (51) is arranged at described bottom, runners chassis (52).