CN85203550U - Versatil metal ladder with single longitudinal member - Google Patents

Abstract

The utility model relates to a versatile metal ladder with a single longitudinal member, particularly a ladder with a stationary longitudinal member. The utility model comprises a long enough vertical rod, a plurality of lateral rods and a ladder foot which is composed of two rods. The upper end of the ladder foot is fixed to the vertical rod, and the lower end of the ladder foot is connected with the middle part of a sole to adjust the connection of the holes expanding span. The other end of a draw rod is fixed to the lower end of the vertical rod. The ladder is made of aluminium alloy and has the advantages of material saving, portability, economic performance, stable placing and safe use. The utility model can be assembled into a wall ladder or a circular column ladder or a hanging ladder or a lengthened ladder or a herring bone ladder according to different requirements.

Description

Many with single longitudinal member wire ladder

The utility model relates to a kind of ladder that fixing longitudinal member is arranged.

Existing widely used wooden ladder, bamboo ladder, wire ladder all are two longitudinal member structures, have two to erect rod member, and And uses for step along the high diverse location fixed lateral of bar rod member.The ladder volume of this structure is bigger, heavy, and purposes is single.Can only lean against on other object during use, climb usefulness, just need to use other special-purpose ladder if do harvesting, fire-fighting, mountain-climbing etc., often be again 4 supports during use, just putting unavoidably not, produce to scratch and turn round, supported at three point is then easily waved, and adds that the foot of ladder span do not have anti-slip equipment, safety inadequately not quite again.

The purpose of this utility model provide a kind of in light weight, serve many purposes, both can lean against on other object and use, can also arbitrarily change the ladder top structure, make it constitute to hang ladder or double ladder, the single longitudinal member wire ladder of many usefulness safe in utilization.

Brief description of drawings:

Fig. 1 is many schematic diagrames with single longitudinal member wire ladder.

Fig. 2 erects rod member top assembling semicircle pawl schematic diagram.

Fig. 3 erects rod member top assembling steel hook schematic diagram.

Fig. 4 erects two grip block schematic diagrames of rod member top assembling.

Fig. 5 erects rod member top assembling hinge to constitute the double ladder schematic diagram.

Below in conjunction with accompanying drawing the utility model is described in detail.

The single longitudinal member wire ladders of many usefulness that the utility model proposed (referring to Fig. 1), erectting rod member (9) is a sufficiently long aluminium alloy extrusions, has some paired holes on it, for using with other member assembling.Foot of ladder (6) is made of two aluminium alloys rod members, and the foot of ladder upper end is screwed is erectting on the rod member, and its middle part has the hole, is connected by two aluminum alloy pull rods (7), bolt (8) and setting rod member.Wherein pull bar is connected with hole on the foot of ladder respectively, and foot of ladder can obtain the different spans of opening.The foot of ladder lower end is connecting the sole of being made up of the ebonite board of anti-slip (1), aluminium alloy post (2), aluminium alloys commutation piece (3).Rubber tile is contained on the support by screw, uses bolt, nut (4) to load onto the commutation piece then, uses bolt, nut (5) that it is loaded on foot of ladder again.Aluminium alloys transverse bar member (10) is installed in by bolt (11) and erects on the rod member, and its quantity can be installed on demand.

At the top of the setting rod member that assembles foot of ladder, pull bar, transverse bar member, the ladder that different members can be formed different purposes is installed with bolt, nut (13):

(1), referring to Fig. 1, aluminium alloys supporting cross-arm (12) is installed, and the hard rubber supporting (15) of using screw (14) to load onto anti-slip respectively at the cross-arm two ends constitutes by the wall ladder.

(2), referring to Fig. 2, aluminium alloys semicircle pawl (16) is installed, constitute usefulness such as phone, electric wiring maintenance, tree trimming, fruit picking by the cylinder ladder.

(3), referring to Fig. 3, steel hook (17) is installed, constitute fire-fighting, mountain-climbing etc. and climb with hanging ladder.

(4), referring to Fig. 4, with two grip blocks (18), erect rod members with two and be connected to form lengthened ladder.

(5), referring to Fig. 5, with a specially designed hinge (19), the ladder of two single longitudinal members is connected pull bar (22), aluminium alloy extrusions support (20) and bolt, nut (21) the support location that And does with aluminium alloy extrusions to the top, constitute the double ladder of usefulness such as building, maintenance, harvesting.

Compare with the ladder of two longitudinal members, single longitudinal member wire ladder has advantage light, safe, that use more.Adopt single longitudinal member to save material, adopt aluminium alloy extrusions to alleviate the weight of ladder, not only economy but also light.Foot of ladder with erect the rod member junction micro-move place arranged, can avoid the ladder of two longitudinal members to put putting scratching of having often turning round, wave even supported at three point is also unlikely.The open span of foot of ladder is bigger than the ladder of two longitudinal members, and foot of ladder being provided with prevent the ebonite board that skids, and is safe in utilization.All members all connect with bolt, and this modular construction can be made many usefulness, has improved the use value of ladder.

Claims (8)

1, a kind of ladder that fixing longitudinal member is arranged, comprise and erect rod member [9], transverse bar member [10], it is characterized in that a foot of ladder that constitutes by two rod members [6] in addition, the foot of ladder upper end is fixed on erects on the rod member, its lower end connects by ebonite board [1], support [2], the sole that commutation piece [3] constitutes, ebonite board is contained on the support, be fixed on the foot of ladder after loading onto the commutation piece then, having a pair of pull bar [7] to be used for regulating the hole of opening span with the foot of ladder middle part is connected, above-mentioned setting rod member is a single longitudinal member that the hole that paired confession cooperates with other member is arranged, and above-mentioned transverse bar member is installed in to be erect on the rod member.

2,, it is characterized in that erectting the supporting cross-arm (12) of formation of top installation of rod member by the wall ladder according to the described ladder of claim 1.

3,, it is characterized in that erectting the semicircle pawl (16) of formation of top installation of rod member by garden post ladder according to the described ladder of claim 1.

4,, it is characterized in that one of the top installation of erectting rod member constitutes the special-purpose steel hook (17) that hangs ladder according to the described ladder of claim 1.

5,, it is characterized in that erectting two grip blocks (18) that can constitute lengthened ladder of top installation of rod member according to the described ladder of claim 1.

6,, it is characterized in that one of the top installation of erectting rod member makes the hinge (19) of two single longitudinal members to the formation double ladder of top connection according to the described ladder of claim 1.

7,, it is characterized in that double ladder passes through pull bar (22) support (20) and supports the location according to the described ladder of claim 6.

8, according to the described ladder of claim 1, it is characterized in that making with aluminum alloy materials.

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