CN209586249U - Composite material for ladder - Google Patents

Abstract

For the composite material of ladder, including aluminium alloy extrusions and iron pipe, the aluminium alloy extrusions and iron pipe combine parallel.Two different metal materials are realized and are combined by the composite material described in the utility model for ladder, and are applied to ladder main part, and manufacturing cost can be greatly reduced, and the bearing capacity of ladder is unaffected, and economic sexual clorminance highlights.

Description

Composite material for ladder

Technical field

The utility model relates to the composite materials for ladder, belong to household items technical field.

Background technique

Ladder is the commonly used tool of ongoing operations.For ladder, main stressed member and main manufacturing cost are In the profile as terraced leg, current existing profile is aluminum alloy material, and internal is in hollow structure, aluminum alloy materials quality phase Than ironware, light quality but at high cost, and if it is realizing that stronger load increases aluminium alloy dosage, then manufacturing cost will be big Width is promoted.

Utility model content

The purpose of the utility model is to overcome the above deficiencies in the existing technologies, and provide a kind of structure design conjunction Reason, manufacturing cost is low, the excellent in stability composite material for ladder.

The technical scheme in the invention for solving the above technical problem is: closing for the composite material of ladder, including aluminium Metal type material and iron pipe, the aluminium alloy extrusions and iron pipe combine parallel.

Furtherly, the aluminium alloy extrusions has the cavity being embedded in for iron pipe, and iron pipe is set in this cavity.

Furtherly, the cross section of the iron pipe is rectangle.

Furtherly, the aluminium alloy extrusions and iron pipe phase rivet or weld or bonding.

The utility model compared with prior art, has the following advantages that and effect:

1, two different metal materials are realized and are combined, and answered by the composite material described in the utility model for ladder For ladder main part, manufacturing cost can be greatly reduced, and the bearing capacity of ladder is unaffected, economic sexual clorminance highlights.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model decomposing state.

Fig. 2 is the structural schematic diagram at another visual angle of the utility model.

Fig. 3 is the structural schematic diagram that metalwork described in the utility model is set in that plastics step on another embodiment.

Fig. 4 is the structural schematic diagram that plastics described in the utility model are stepped on.

Fig. 5 is the structural schematic diagram at another visual angle Fig. 4.

Fig. 6 is the structural schematic diagram of the composite material described in the utility model for a ladder wherein embodiment.

Fig. 7 is the structural schematic diagram of another embodiment of the composite material for ladder described in the utility model.

Specific embodiment

The utility model is described in further detail with reference to the accompanying drawing and by embodiment, and following embodiment is pair The explanation of the utility model and the utility model is not limited to following embodiment.

Embodiment 1

As shown in Figures 1 to 3, a kind of ladder, the ladder include ladder 2 and compound pedal 1, and compound pedal 1 is using connection Part 3 is mounted on ladder 2, and the ladder 2 includes the composite material 21 for ladder.Preferably, connector 3 is fastener, such as Rivet, screw, lock pin etc. have axis class connector 3, and connector 3 wears ladder 2 and compound pedal 1 realizes installation.It is described compound to step on Plate 1 includes that plastics step on 11 and metalwork 12, and the metalwork 12 is set in plastics and steps on 11.The metalwork 12 is set in plastics and steps on 11 Including but not limited to such as two kinds of embodiments of Fig. 1 and Fig. 3, the former 12 two sides of metalwork have plastics to step on 11, and the latter only has single Side has plastics to step on 11.

Metalwork 12 described in the present embodiment is located at the outer edge that plastics step on 11, and metalwork 12 steps on 11 outer edge along plastics Circumferentially extending is in open loop or closed loop, and metalwork 12 has at least one bending.The outer edge that plastics step on 11 is arranged in metalwork 12, To plastics step on 11 reinforced region and effect it is more excellent, the longer reinforcing effect of the extended distance of metalwork 12 equally under the conditions of degree of enclosing More preferably, but consider cost factor, the development length of metalwork 12 can select the highest mode of cost performance to implement as needed.Metal Vertical load capability improving after 12 bending of part.

Metalwork 12 described in the present embodiment is hollow tube, and hollow tube compares solid construction, and anti-yield behavior is stronger, weight It measures stronger.

Connector 3 described in the present embodiment is separately connected ladder 2 and metalwork 12 and compound pedal 1 is mounted on ladder 2.Ladder 2 and metalwork 12 be main load bearing component, using the connection structure, the load-carrying ability of compound pedal 1 is substantially improved.

As shown in figure 4, the front that plastics described in the present embodiment step on 11 is equipped with the groove body 10 for metal inlaying part 12, metalwork 12 are arranged in the groove body 10 and step on 11 with plastics and be fixedly connected.The mode being fixedly connected includes ordinary skill in the art hand Section, such as riveting, bonding, close-fitting, clamping, fastened by screw.

As shown in figure 5, it includes a flat main body 111 that plastics described in the present embodiment, which step on 11, along the outer edge of main body 111 Equipped with the surrounding edge 112 being fixedly connected with main body 111, the rib 113 being staggered in longitude and latitude is equipped in surrounding edge 112.

As shown in fig. 6, ladder 2 described in the present embodiment includes at least two composite materials 21 for being used for ladder, 1 liang of compound pedal End is separately connected the composite material 21 for ladder, and the composite material 21 for ladder includes aluminium alloy extrusions 211 and iron Pipe 212, the aluminium alloy extrusions 211 and iron pipe 212 combine parallel.As can between preferred aluminium alloy extrusions 211 and iron pipe 212 Riveting, welding are bonded using colloid.The price of iron pipe 212 is significantly lower than aluminium alloy extrusions 211, however the two knot in the structure Stress performance after structure is substantially improved, and cost of manufacture is greatly reduced under the conditions of reaching same stress performance.The iron pipe 212 cross section is rectangle.

As shown in fig. 7, aluminium alloy extrusions 211 described in the present embodiment has for the insertion of iron pipe 212 and cavity, iron pipe 212 If in this cavity.The space of aluminium alloy extrusions 211 indwelling installation iron pipe 212 in the structure, the two combinations matches degree is high, With rear reliable.

The present embodiment further includes mounting assembly 4, and mounting assembly 4 includes metal inner lining 41 and plastic wrapper 42, metal inner lining 41 are arranged in plastic wrapper 42；The ladder 2 includes at least four composite materials 21 for being used for ladder, and fastener penetrates metal The composite material 21 that liner 41, plastic wrapper 42 are used for ladder with two is fixedly connected, and fastener penetrates metal inner lining 41, plastics Housing 42 and another two rotation connections of composite material 21 for ladder.In the prior art, single metal inner lining 41 is in cold temperature Under the conditions of degree, impact test is done, the cracking of metal inner lining 41 is easily caused；And if unitary plastic housing 42, stress intensity Again not enough, after compound both in the application, impact resistance and stress intensity under cold conditions is obviously improved, specific significant Progress.

The present embodiment further includes a plastics bridgeware 5 and the reinforcing rod 51 using tubing bending formation, the plastics bridge joint 5 both ends of part are separately connected the composite material 21 for ladder of two sides, and 51 both ends bending of reinforcing rod forms mounting portion, reinforcing rod 51 Two 21 insides of composite material for ladder are set, and two mounting portions are respectively with two for fixed on the inside of the composite material 21 of ladder Connection.This architecture enhance the stress intensities of unitary plastic bridgeware 5, suo loco are arranged, reinforcing rod 51 is to plastics bridgeware 5 There is support effect again.

The length of two composite materials 21 for being used for ladder described in the present embodiment is greater than another two composite materials 21 for being used for ladder Length, further include a plastics bridgeware 5 and the reinforcing rod 51 that is formed using tubing bending, 5 both ends of plastics bridgeware point The end of the two relatively long composite material 21 for ladder of other connection length, 51 both ends bending of reinforcing rod form mounting portion, add Two 21 insides of composite material for ladder are arranged in strong bar 51, and two mounting portions are respectively with two in the composite material 21 of ladder Side is fixedly connected.

Above content is only illustrate to examples for clearly illustrating the present invention described in this specification.The utility model Person of ordinary skill in the field can make various modifications or additions to the described embodiments or using class As mode substitute, content without departing from the utility model specification or surmount model defined in the claims It encloses, all should belong to the protection range of the utility model.

Claims (3)

1. be used for ladder composite material, characterized in that including aluminium alloy extrusions and iron pipe, the aluminium alloy extrusions have for The cavity of iron pipe insertion, iron pipe are set in the cavity.

2. being used for the composite material of ladder as described in claim 1, characterized in that the cross section of iron pipe is rectangle.

3. being used for the composite material of ladder as claimed in claim 1 or 2, characterized in that the aluminium alloy extrusions and iron pipe phase Rivet or weld or bonding.