CN2239483Y

CN2239483Y - Two-rail device on top rail of sliding low door

Info

Publication number: CN2239483Y
Application number: CN 95227640
Authority: CN
Inventors: 李晓彤
Original assignee: BEIJING LANGRUIER DECORATIVE ENGINEERING Co Ltd
Current assignee: BEIJING LANGRUIER DECORATIVE ENGINEERING Co Ltd
Priority date: 1995-12-28
Filing date: 1995-12-28
Publication date: 1996-11-06
Anticipated expiration: 2005-12-28

Abstract

The utility model discloses a two-rail device. The utility model is suitable for the upper sliding rail doors whose door top height is smaller than the height of a single door board. A small bent rail and a level rail are arranged on the upper sliding rail door existing in the prior art. The small bent rail and the level rail are superposed with the original bent rail and level rail. The small bent rail and the level rail are fixedly connected with a building by expansion bolts, the roller of the door board of the top piece is arranged in the small bent rail, and the rollers of the rest door boards are arranged in the vertical rails, thus the door board of the top piece is always operated in the small bent rail, and the level rail and the rest door boards are always operated in the original bent rail and level rail. When the utility model is closed, the whole hole mouth is completely sealed.

Description

The two-rail device of sliding rail door is gone up on low door top

The utility model relates to the two-rail device that sliding rail door is gone up on a kind of low door top, specifically, be exactly when door heights of roofs during less than monolithic door-plate height, make topmost a door-plate and all the other door-plates respectively along upper and lower two-layer orbital motion so that a kind of device that door-plate seals the hole when cutting out fully is applicable to the last sliding rail door of a heights of roofs less than monolithic door-plate height.

Last sliding rail door is like this work: during unlatching, by two or more the polylith door-plate is together horizontally hinged, be equipped with trundle on the door-plate along vertical track, curved rail imports the horizontal rail that is higher than the hole, makes the hole complete opening; When closing, the roller on each door-plate is bent rail along the horizontal rail that is higher than the hole, and the vertical track motion is with the whole hole sealing of building.

Generally speaking, the door heights of roofs on top, hole is more than or equal to the height of monolithic door-plate, and the door-plate running orbit is sealed the hole shown in Fig. 3 chain-dotted line.Regulation according to GB5824, the parameter of China's building door hole height is differential to be two kinds of 300mm and 600mm, when door heights of roofs during less than the height of monolithic door-plate, a door-plate has been adjacent to ground bottom, topmost a door-plate can not seal top, hole at curved rail place owing to roller, as shown in Figure 4, cause foreign material, dust to be gone into the wind, make sliding rail door lose effect windproof, dustproof, insulation.

In order to address the above problem, the utility model provides a kind of also can seal the two-rail device at hole during less than monolithic door-plate height fully in the door heights of roofs.

Task of the present utility model is achieved in that the utility model is at the horizontally hinged door-plate of several piece, the axle of roller is connected on the turning rolls that is connected with door-plate, roller rolls with track and contacts, track is provided with small curved track and horizontal rail on expansion bolt and building are connected the last sliding rail door of forming, be connected with expansion bolt and building with original curved rail and the upper and lower stacked back of horizontal rail, topmost the roller of a door-plate is positioned in the track of small curved track, and the roller of all the other door-plates is positioned in the vertical track;

At first going out the top minimum constructive height according to the SPATIAL CALCULATION of shared space of curved rail, horizontal rail position and door-plate operation must not be less than 265mm;

According to guaranteeing that when door is closed door-plate is topmost sealed the hole, determine the roller position of door-plate topmost, according to the position of horizontal rail, size can be determined position, radius and other size of small curved track again.

Fig. 1 is the lateral view of the utility model structure, Fig. 2 is that the D of Fig. 1 is to partial enlarged view, Fig. 3 be a heights of roofs h during greater than 600mm on sliding rail door closed condition figure, Fig. 4 be a heights of roofs h during less than 600mm on sliding rail door closed condition figure, Fig. 5 is the calculating chart of curved rail 42 radius Rs.

In conjunction with the accompanying drawings structure of the present utility model and embodiment are described as follows:

The utility model is at the horizontally hinged door-plate 1 of several piece, on the turning rolls 2 that is connected with door-plate oblong slots 21 is arranged, axle of roller 3 is connected on it, roller 3 contacts for rolling with track 4, track 4 is by vertical track 41, curved rail 42, horizontal rail 43 is formed, track 4 has increased small curved track 52 and horizontal rail 53 on expansion bolt and building are connected the last sliding rail door of forming, on small curved track 52 and horizontal rail 53 and curved rail 42 and the horizontal rail 43, stacked down, be connected with expansion bolt and building, topmost the roller 3 of a door-plate is positioned in the track of small curved track 52, the roller 3 of all the other door-plates 1 is positioned in the vertical track, and turning rolls 2 can be regulated the distance of roller outer rim to door-plate by oblong slots 21, and adjustable range is 31.5～63mm.

Curved rail 42 is 90 ° of curved rails with small curved track 52, and its outer arc radius is respectively calculated as follows:

Cambered axle 42 outer arc radiuses are decided to be 434mm.It is according to being to be under the 600mm condition in the door-plate height H, and the distance on the curved rail circular arc center of circle to roller outer rim summit is a (see figure 5):

600×Sin45°＝424.26mm

The interior exterior feature of guide rail is wide to be 54, and diameter is that roller and the guide clearance of φ 45 is 54-45=9mm.

Two number additions, 424.26+9  434mm i.e. 90 ° of curved rail outer arc radiuses.

Determining of door top minimum constructive height:

It is 1: 80 horizontal rail ascending amount to door-plate ultimate range+door-plate thickness+gradient that h=bends rail outer arc radius+roller outer rim

＝434＋63＋40＋60

600mm

(annotate: the ascending amount of 1: 80 gradient is high by 4800 by the hole)

If last sliding rail door topmost door-plate enters small curved track 52, after the horizontal rail, advanced to horizontal rail end place, when the door-plate upper edge touched indoor deck, small curved track 52 outer arc radiuses were determined by following factors:

One. small curved track 52 and indoor roof relation of plane

1. door-plate thickness 40mm.

2. the roller outer rim is apart from door-plate minimum range 31.5mm.

3. 1: 80 horizontal rail ascending amount of gradient (calculating by hole high 4800) is 60mm.

4.GB1184 regulation parallelism tolerance 1.5mm in the form and position tolerance table.

5. the horizontal rail overlapping tolerance clearance 1mm of large and small curved rail.

Above-mentioned data addition:

40＋31.5＋60＋1.5＋1＝134mm

Promptly the minimum range of 90 ° of upper edges is 134mm from indoor deck to small curved track

Two. small curved track 52 and hole interior side wall relation of plane

1. door-plate thickness 40mm.

2. the roller outer rim is apart from door-plate minimum range 31.5mm.

3. 1: 80 vertical track of the gradient distance (calculating by hole height 4800) of leaving indoor wall is 60mm.

Above-mentioned data addition:

400 31.5 ten 60=131.5

With above-mentioned two minimum value relatively, unified is 134mm, is about to small curved track 52 outer arc radiuses and is decided to be R134mm.

After considering that the door-plate height is 600mm, small curved track 52 is moved 60mm to indoor wall, remove the distance of metope when this is of a size of 1: 80 gradient, small curved track 52 outers are 131.5-60=71.5mm apart from metope like this.But with top, complete closed hole behind the assurance use small curved track 52.

The course of work of the present utility model:

During unlatching, wire rope door-plate bottom upwards draws, except that the door-plate of the top, their roller 3 is along vertical track 41, curved rail 42, horizontal rail 43 moves on the horizontal rail, and topmost the roller 3 of a door-plate is along small curved track 52, horizontal rail 53 moves to the horizontal rail end, and door opening is all opened;

When closing, topmost the roller 3 of a door-plate is along horizontal rail 53, small curved track 52 operations, the roller 3 of all the other door-plates is along horizontal rail 43, curved rail 42 moves the door opening complete closed, as shown in Figure 1, and like this, door-plate back and forth operation in small curved track and horizontal rail all the time topmost, all the other door-plates then move in curved rail and horizontal rail all the time.

Advantage of the present utility model: reliable operation, simple in structure.

Claims

1. one kind low door pushes up the two-rail device of going up sliding rail door, by the horizontally hinged door-plate of several piece (1), the turning rolls (2) that is connected with door-plate, axle of roller (3) is connected on it, roller (3) contacts for rolling with track (4), track (4) is by vertical track (41), curved rail (42), horizontal rail (43) is formed, the last sliding rail door that track 4 is connected and forms through expansion bolt and building, it is characterized in that, small curved track (52) and horizontal rail (53) are set, on curved rail (42) and horizontal rail (43), stacked down, be connected with expansion bolt and building, topmost the roller (3) of a door-plate (1) is positioned in the track of small curved track (52), and the roller (3) of all the other door-plates (1) is positioned in the vertical track (41).

2. by the described two-rail device of claim 1, it is characterized in that the radius of small curved track (52) is 134mm.

3. by claim 1 or 2 described two-rail devices, it is characterized in that the outer rim of roller (3) to the adjustable scope of distance of door-plate (1) is 31.5～63mm.