CN2846593Y

CN2846593Y - Cross type staircase

Info

Publication number: CN2846593Y
Application number: CN 200520077476
Authority: CN
Inventors: 周义玉
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-11-14
Filing date: 2005-11-14
Publication date: 2006-12-13
Anticipated expiration: 2015-11-14

Abstract

The utility model relates to an indoor staircase, particularly a cross type staircase. The utility model is composed of a middle ridge type crossbeam (1) and a plurality of pedals (2) which are fixed on both sides of the crossbeam (1), wherein the adjacent pedals (2) on both sides of the crossbeam (1) are mutually arranged into a single person ladder in a cross form, a piece of corresponding pedal (2-c) is necessarily arranged on the other side of the crossbeam (1) between every two pedals (2-a, 2-b) which are positioned on the same side of the crossbeam (1) and are adjacent up and down, the adjacent pedals (2) are fixedly connected with each other by an arc-shaped flat plate (3), the arc top point of the arc-shaped flat plate (3) is connected and fixed with the left end of the right corresponding pedal (2-c), the upper end of the arc-shaped flat plate (3) is fixedly connected with the front end of the pedal (2-a), and the lower end of the arc-shaped flat plate (3) is connected and fixed with the rear end of the pedal (2-b). The utility model has the advantages of labor-saving walk, high safety, simple structure, and low cost; furthermore, compared with a traditional staircase, the land occupation space of the utility model is reduced by more than one half; in addition, the utility model is very suitable for being arranged in the narrow space and used as an ascending and descending staircase.

Description

A kind of alternating expression stair

Affiliated technical field:

The utility model relates to a kind of indoor staircase, relates in particular to a kind of alternating expression stair.

Background technology:

At present, the stair activity that is provided with in small spaces such as some factory floor and warship cabin is generally all done not only narrow but also suddenly owing to be subjected to the restriction in space, and promptly bilevel floor height is much larger than the projector distance of stair, make the inclination angle of stair very big, there is significant disadvantages in such stair: because the slope of stairs is big, the broadstep width is narrow again, can only hold the part of pin, it is little to put forth effort area, relatively more painstaking upstairs, step on sky tumble injury especially easily downstairs, use very dangerous.

The utility model content:

In order to address the above problem, the utility model provides a kind of employing heavy grade, wide pedal, goes up the alternating expression stair very easily of going downstairs all, has improved safety again when saving the space.

The technical solution of the utility model is: a kind of alternating expression stair, form by a median ridge formula crossbeam and the polylith pedal that is fixed in the crossbeam both sides, adjacent interlaced setting of pedal in described crossbeam both sides forms single ladder, per two between crossbeam the same side and neighbouring pedal, the inevitable pedal that a correspondence is set in the crossbeam opposite side.

The beneficial effects of the utility model distance that downstairs moves ahead on being is equivalent to half of traditional stair, and it is laborsaving, safe to walk, and the occupation of land space is also lacked over half than traditional stair, and simple in structure, with low cost, be well suited for being arranged in the small space and use as stair activity.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described further:

Fig. 1 is a front view of the present utility model,

Fig. 2 is a left view of the present utility model,

Fig. 3 is a vertical view of the present utility model,

Fig. 4 is a partial perspective view of the present utility model.

The specific embodiment

Referring to accompanying

drawing

1,2,3,4, a kind of alternating expression stair, form by a median ridge formula crossbeam 1 and the polylith pedal 2 that is fixed in crossbeam 1 both sides, fixedly connected between the neighbouring pedal 2 by arc dull and stereotyped 3, pedal 2-a, the interlaced setting of 2-b and 2-c forms single ladder, per two are positioned at crossbeam the same side and neighbouring pedal 2-a, between the 2-b, the inevitable pedal 2-c that a correspondence is set in the crossbeam opposite side, neighbouring pedal 2-a and 2-b, between drop equal the summation of the drop between pedal 2-a and 2-c and 2-b and the 2-c, the dull and stereotyped 3 right-hand member arc tops of arc are located to be connected and fixed with corresponding pedal 2-c left end, fixedly connected with pedal 2-a front end in the upper end, lower end and pedal 2-b rear end are connected and fixed, head on pedal 2-a above its role is to, hold pedal 2-b below, place, right-hand member arc top constitutes a firm triangle force structure by connecting the location with pedal 2-c.If double ladder need be set, only need the pedal 2-c on crossbeam 1 right side is prolonged one times, and then correspondence is installed a crossbeam 1 and pedal 2-a, 2-b get final product.Sturdy material such as all available steel plate of crossbeam 1, pedal 2 and arc flat board 3, plank are made, and by welding, wooden peg is fastening in aggregates, also available bolt or anchor clamps flexibly connect, carrying for convenience detach.

Claims

1. alternating expression stair, form by a median ridge formula crossbeam (1) and the polylith pedal (2) that is fixed in crossbeam (1) both sides, it is characterized in that interlaced setting of the adjacent pedal (2) in described crossbeam (1) both sides forms single ladder, per two are positioned between crossbeam (1) the same side and the neighbouring pedal (2-a, 2-b) the inevitable pedal (2-c) that a correspondence is set in the opposite side of crossbeam (1).

2. a kind of alternating expression stair according to claim 1, it is characterized in that between the adjacent pedal (2) fixedly connected by arc flat board (3), place, arc flat board (3) arc top pedal (2-c) left end corresponding with the right is connected and fixed, fixedly connected with the front end of pedal (2-a) in its upper end, the rear end of lower end and pedal (2-b) is connected and fixed.