CN210289605U

CN210289605U - Width-pedal adjustable attic ladder

Info

Publication number: CN210289605U
Application number: CN201920830073.1U
Authority: CN
Inventors: 傅能志
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-04
Filing date: 2019-06-04
Publication date: 2020-04-10
Anticipated expiration: 2029-06-04

Abstract

The utility model discloses a loft stair with adjustable wide footboard, include: the ladder comprises a ladder frame, a ladder plate group, an adjusting frame and a detachable handrail; the ladder frame includes: two oppositely arranged ladder posts and a plurality of first round rods; the first round rods are sequentially and uniformly laid between the two ladder posts from top to bottom, and two ends of each first round rod are fixedly connected with the two ladder posts through bolts; the two ladder columns are hinged with an adjusting frame above the first round rod positioned at the top; the ladder plate group is arranged between the two ladder columns through the shaft connection with the first round rod; a set of handrail is respectively arranged on the two ladder posts; the utility model discloses a loft stair with wide footboard and adjustable, ladder board group adopt the mode of coupling to install on the ladder frame, are equipped with the alignment jig of many shelves in addition and fix, when using the loft of co-altitude, can play the horizontally effect of regulation ladder board, have increased the commonality of product, and the handrail adopts the joint formula in addition, when not using the ladder, conveniently puts.

Description

Width-pedal adjustable attic ladder

Technical Field

The utility model relates to a loft stair with adjustable wide footboard.

Background

At present many storefronts and housing all attics, attic stair on the market have the majority to be two kinds of forms, one kind is traditional narrow step board single ladder, and this kind of preparation is simple, but has the potential safety hazard during the use, and the other kind is the single ladder of wide step board, and the step board of this kind of single ladder all is done and is died fixedly, and the unable angle regulation of step board is used for the attic of co-altitude, and the step board must form the inclined plane, can't guarantee the level.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to solve the problem, the utility model provides a loft stair with adjustable wide footboard.

(II) technical scheme

The utility model discloses a loft stair with adjustable wide footboard, include: the ladder comprises a ladder frame, a ladder plate group, an adjusting frame and a detachable handrail; the ladder frame includes: two oppositely arranged ladder posts and a plurality of first round rods; the first round rods are sequentially and uniformly laid between the two ladder posts from top to bottom, and two ends of each first round rod are fixedly connected with the two ladder posts through bolts; the two ladder columns are hinged with an adjusting frame above the first round rod positioned at the top; the ladder plate group is arranged between the two ladder columns through the shaft connection with the first round rod; and the two ladder posts are respectively provided with a set of handrail.

Further, the elevator group comprises: the first ladder plate, the second ladder plate and the two first connecting strips are sequentially arranged; the two first connecting strips are arranged on two sides of the first ladder board and the second ladder board and are connected with all the first ladder boards and the second ladder boards in a hinged mode; the through-hole has all transversely been seted up with the one end of first step and second step, corresponds the first round bar of coupling.

Further, the first step plate is correspondingly coupled with the first round rod at the topmost part; and a buckling groove is further formed in the bottom surface of the other end of the first ladder board.

Further, the adjusting bracket includes: two second connecting strips and a plurality of second round rods; one ends of the two second connecting strips are respectively hinged with the two ladder posts; a plurality of second round rods are fixedly connected between the two second connecting strips through hand-screwed bolts in a screwed mode; the second round rod is correspondingly buckled into the buckling groove.

Further, the armrest includes: the support rod and the two connecting buckles; the whole body is made of plastic, has certain elasticity, and is provided with a clamping groove and a nesting groove which are correspondingly clamped with the ladder column; the side wall of the nesting groove is provided with a clamping hole; the end parts of the holding rods are nested in the nesting grooves.

Furthermore, the holding rod is made of a hollow tube, and spring pieces are fixedly arranged in pipe orifices at two ends of the holding rod; the spring piece is provided with a clamping table; the pipe walls at the two ends of the supporting rod are provided with avoiding holes; the clamping table penetrates through the avoiding hole and is correspondingly clamped into the clamping hole.

Further, the first round rod and the second round rod are identical in structure; and threaded holes for screwing and fixing are formed in two end faces of the first round rod.

Furthermore, the outer side of the two ends of the first round rod is provided with a limiting sleeve for preventing the ladder board set from moving left and right.

Furthermore, a safety hook for preventing slipping is fixedly arranged at the top of the ladder post, and an adjusting foot pad is arranged at the bottom foot.

(III) advantageous effects

The utility model discloses it has following beneficial effect:

the utility model discloses a loft stair with wide footboard and adjustable, ladder board group adopt the mode of coupling to install on the ladder frame, are equipped with the alignment jig of many shelves in addition and fix, when using the loft of co-altitude, can play the horizontally effect of regulation ladder board, have increased the commonality of product, and the handrail adopts the joint formula in addition, when not using the ladder, conveniently puts.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the adjusting bracket of the present invention.

Fig. 3 is a cross-sectional view of the middle step plate and the step frame shaft joint of the present invention.

Fig. 4 is a cross-sectional view of a first step in the present invention.

Fig. 5 is a cross-sectional view of the connection of the armrest of the present invention.

Fig. 6 is a diagram of the method at a in fig. 5.

1-a ladder frame; 2-ladder board group; 3-an adjusting frame; 4-a handrail; 5-limiting sleeve; 6-safety hook; 7-adjusting the foot pad; 11-ladder posts; 12-a first round bar; 21-a first tread; 22-a second tread; 23-a first connecting strip; 24-a via hole; 31-a second connecting strip; 32-a second round bar; 33-screwing the bolt by hand; 41-a holding rod; 42-connecting a buckle; 121-a threaded hole; 211-snap groove; 411-leaf spring; 412-a cassette; 413-avoiding hole; 421-a card slot; 422-nesting groove; 423-card hole.

Detailed Description

As shown in fig. 1-6, a wide-tread adjustable loft ladder comprises a ladder rack 1, a ladder plate group 2, an adjusting rack 3 and a detachable handrail 4; the ladder frame 1 includes: two ladder posts 11 and a plurality of first round rods 12 which are oppositely arranged; the first round rods 12 are sequentially and uniformly laid between the two ladder posts 11 from top to bottom, and two ends of each first round rod are fixedly connected with the two ladder posts 11 through bolts; the two ladder columns 11 are hinged with an adjusting frame 3 above a first round bar 12 positioned at the topmost part; the ladder plate group 2 is arranged between two ladder posts 11 through being connected with a first round rod 12 in a shaft mode; a set of handrails 4 is respectively installed on the two ladder posts 11.

Referring to fig. 1 and 4, the elevator group 2 includes: the first step plate 21, the second step plate 22 and the two first connecting strips 23 are sequentially arranged; the two first connecting strips 23 are mounted at two sides of the first ladder board 21 and the second ladder board 22 and connected with all the first ladder board 21 and the second ladder board 22 in a hinged mode; the same ends of the first step plate 21 and the second step plate 22 are transversely provided with through holes 24 which are correspondingly coupled with the first round rods 12.

Referring to fig. 1 and 4, the first step 21 is correspondingly coupled to the topmost first round bar 12; the bottom surface of the other end of the first ladder board 21 is further provided with a buckling groove 211.

Referring to fig. 2, the adjusting bracket 3 includes: two second connecting bars 31 and a plurality of second round rods 32; one end of each of the two second connecting strips 31 is hinged to the two ladder posts 11; a plurality of second round rods 32 are screwed and fixed between the two second connecting strips 31 through hand-screwed bolts 33; the second round bar 32 is correspondingly buckled into the buckling groove 211.

Referring to fig. 1, 5, and 6, the armrest 4 includes: a holding rod 41 and two connecting buckles 42; the connecting buckle 42 is integrally made of plastic, has certain elasticity, and is provided with a clamping groove 421 correspondingly clamping the ladder column 11 and a nesting groove 422; the side wall of the nesting groove 422 is provided with a clamping hole 423; the end part of the holding rod 41 is nested in the nesting groove (422).

Referring to fig. 5 and 6, the handrail 41 is made of a hollow tube, and a spring leaf 411 is installed and fixed in the pipe orifices at two ends of the handrail; a clamping table 412 is arranged on the spring piece 411; the pipe walls at the two ends of the supporting rod 41 are provided with avoiding holes 413; the clamping platform 412 passes through the avoiding hole 413 and is correspondingly clamped in the clamping hole 423.

Referring to fig. 3, the first round bar 12 and the second round bar 32 have the same structure; threaded holes 121 for screwing and fixing are formed in two end faces of the first round rod 12.

Referring to fig. 3, the outer side of the two ends of the first round bar 12 is sleeved with a limiting sleeve 5 for preventing the elevator plate group 2 from moving left and right.

Referring to fig. 1, a safety hook 6 for preventing slipping is fixedly installed at the top of the ladder post 11, and an adjusting foot pad 7 is installed at the bottom foot.

When the ladder is used, any one of the ladder boards is pulled, all the ladder boards can rotate by a certain angle according to the corresponding first round rods 12 under the drive of the first connecting bar 23, and after the ladder boards reach a required angle, the corresponding second round rods 32 on the adjusting frame are clamped into the buckling grooves 211 of the first ladder board 21, so that the effect of supporting and fixing the ladder boards can be achieved, and different second round rods 32 are only needed to be buckled into the buckling grooves 211 of the first ladder board 21 aiming at attics with different heights; in addition, the handrail 4 is connected to the ladder post 11 in a buckling manner, and when the handrail is not needed, only the connecting buckle 42 needs to be pulled out, and the holding rod 41 and the connecting buckle 42 can be separated by pressing the clamping table 412.

It is to be understood that the exemplary embodiments described herein are illustrative and not restrictive; although the embodiments of the present invention have been described with reference to the accompanying drawings, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A wide tread and adjustable loft ladder comprising: the ladder comprises a ladder frame (1), a ladder plate group (2), an adjusting frame (3) and a detachable handrail (4); the method is characterized in that: the ladder rack (1) comprises: two ladder posts (11) which are arranged oppositely and a plurality of first round rods (12); the first round rods (12) are sequentially and uniformly laid between the two ladder posts (11) from top to bottom, and the two ends of the first round rods are fixedly connected with the two ladder posts (11) through bolts; the two ladder posts (11) are hinged with an adjusting frame (3) above a first round rod (12) positioned at the topmost part; the ladder plate group (2) is mounted between the two ladder columns (11) through a shaft joint with the first round rod (12); and the two ladder posts (11) are respectively provided with a set of handrail (4).

2. A wide tread and adjustable loft ladder as claimed in claim 1, wherein the set of ladder bars (2) comprises: a first step (21), a second step (22) and two first connecting strips (23) which are arranged in sequence; the two first connecting strips (23) are arranged on two sides of the first ladder board (21) and the second ladder board (22) and are connected with all the first ladder boards (21) and the second ladder boards (22) in a hinged mode; the first step (21) and the second step (22) have through holes (24) transversely formed at the same end and are correspondingly coupled with the first round rod (12).

3. A wide tread and adjustable loft ladder as claimed in claim 2, wherein the first flight (21) is journalled in correspondence with the first topmost rod (12); the bottom surface of the other end of the first ladder board (21) is also provided with a buckling groove (211).

4. A wide-tread adjustable loft ladder as claimed in claim 1, wherein the adjustment bracket (3) comprises: two second connecting strips (31) and a plurality of second round rods (32); one ends of the two second connecting strips (31) are respectively hinged with the two ladder posts (11); a plurality of second round rods (32) are fixed between the two second connecting strips (31) in a threaded manner through hand-screwed bolts (33); the second round rod (32) is correspondingly buckled into the buckling groove (211).

5. A wide-tread adjustable loft ladder as claimed in claim 1, wherein the handrail (4) comprises: a holding rod (41) and two connecting buckles (42); the connecting buckle (42) is integrally made of plastic, has certain elasticity, and is provided with a clamping groove (421) and a nesting groove (422) which are correspondingly clamped with the ladder column (11); the side wall of the embedding groove (422) is provided with a clamping hole (423); the end part of the holding rod (41) is nested in the nesting groove (422).

6. A wide-pedal adjustable loft ladder as claimed in claim 5, wherein the handrail (41) is made of a hollow tube, and spring strips (411) are installed and fixed in the mouths of both ends; a clamping table (412) is arranged on the spring piece (411); the pipe walls at the two ends of the supporting rod (41) are provided with avoiding holes (413); the clamping table (412) penetrates through the avoiding hole (413) and is correspondingly clamped into the clamping hole (423).

7. A wide tread and adjustable loft ladder as claimed in claim 1, wherein the first and second circular bars (12, 32) are identical in construction; threaded holes (121) for screwing and fixing are formed in two end faces of the first round rod (12).

8. The wide-pedal adjustable loft ladder as claimed in claim 1, wherein the outer sides of the two ends of the first round bar (12) are sleeved with limit sleeves (5) for preventing the ladder plate group (2) from moving left and right.

9. A wide-tread adjustable loft ladder as claimed in claim 1, wherein the top of the ladder post (11) is fixed with a safety hook (6) for preventing slipping, and the foot is provided with an adjusting foot pad (7).