CN203308022U

CN203308022U - Integral type cambered mudsill of solid-wood spiral stair

Info

Publication number: CN203308022U
Application number: CN2013203351551U
Authority: CN
Inventors: 许提; 罗鹏
Original assignee: HUNAN GAOPENG WOOD ART Co Ltd
Current assignee: HUNAN GAOPENG WOOD ART Co Ltd
Priority date: 2013-06-09
Filing date: 2013-06-09
Publication date: 2013-11-27
Anticipated expiration: 2023-06-09

Abstract

The utility model discloses an integral type cambered mudsill of a solid-wood spiral stair. The integral type cambered mudsill comprises an integral type main body formed by a log board, wherein a plurality of anti-explosion grooves are uniformly distributed in the outer cambered surface of the main body of the cambered mudsill, trapezoidal positioning wood house bars are inserted into the anti-explosion grooves, and a veneer is glued on the outer cambered surface of the main body of the cambered mudsill. For the integral type cambered mudsill, the processing cost is reduced, glue application amount is obviously reduced, and the strength of the whole structure is improved.

Description

A kind of monolithic arc bottom girder of solid wood spiral stairs

Technical field

The utility model relates to a kind of spiral stairs, and especially a kind of arc of solid wood spiral stairs curves bottom girder.

Background technology

The arc bottom girder preparation method of existing spiral stairs is composite wafer stack brake forming.Plank is split into to thin slice, then thin slice is layering and glues together the thickness that reaches bottom girder.As Chinese invention patent application " manufacture method of arc rotary solid-wood stair beam ", its application number is 200710028789.1, and the publication number of patent documentation is CN101332620A, and open day is on December 31st, 2008.Its preparation method sequentially comprises the following steps: the standby little blank of solid wood, secondary drying, color separation are selected materials, sawing sheet, finger, four side moulder moulding, drive fixed thick, the veneer of thin slice, jigsaw, accurate saw Fixed width, sanding and open anti-explosion groove, assembled formation.Its drawback is, 1. to be processed into the thin slice cost high for timber; 2. the bottom girder that is made into of composite wafer is similar to solid wooden compound floor, is to be overrided to form after timber is split into to thin slice, and the structure that has changed timber itself causes strength decreased; 3. the thin slice stack needs to use a large amount of glue in process of production, and environmental-protecting performance is poor.

Summary of the invention

In order to solve above-mentioned drawback, technical problem to be solved in the utility model is, a kind of arc bottom girder of solid wood spiral stairs is provided, and has intensity high, and cost is low, the characteristics of good environmental protection.In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is, a kind of monolithic arc bottom girder of solid wood spiral stairs, it is characterized in that, described arc bottom girder comprises the all-in-one-piece main body consisted of original plank, the extrados of described arc bottom girder main body is uniformly distributed some anti-explosion grooves, in anti-explosion groove, inserts trapezoidal location wood Dwelling bar, posts decoration panel on the extrados of described arc bottom girder main body.

The beneficial effects of the utility model are, adopt technique scheme, do not need timber is split into to thin slice, directly on original plank, offer anti-explosion groove and bend to arc, then trapezoidal Mu Dwelling bar is inserted in anti-explosion groove arc is positioned, and prevent bounce-back.Reduced processing cost, the glue use amount obviously reduces, and has improved overall construction intensity.

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

The accompanying drawing explanation

Fig. 1 is the utility model theory structure schematic diagram, in figure, combines Mu Dwelling bar cross section, location drawing;

Fig. 2 is deployed condition structural representation after the bottom girder fluting;

Fig. 3 is the assembling schematic diagram.

The specific embodiment

Referring to accompanying drawing, reflect a kind of concrete structure of the present utility model, the monolithic arc bottom girder of described solid wood spiral stairs comprises the all-in-one-piece main body 1 consisted of original plank, the extrados of described arc bottom girder main body 1 is uniformly distributed some anti-explosion grooves 2, the location wood Dwelling bar 3 that the interior insertion of anti-explosion groove 2 is trapezoidal, post decoration panel 4 on the extrados of described arc bottom girder main body 1.

The making of the monolithic arc bottom girder of described solid wood spiral stairs is to adopt the crooked principle of fluting and the machine-shaping of trapezoidal wooden Dwelling bar positioning principle, sequentially comprises the following steps: standby solid wood stock, secondary drying, color separation are selected materials, sawing sheet, timber health, toe joint, four side moulder moulding, jigsaw, accurate saw Fixed width, sanding fixed thick, open anti-explosion groove, assembled formation.Described timber health refers to that the timber that drying is crossed carries out Balance Treatment, reduces moisture content gradient of wood, prevents that the moisture absorption moisture regain from appearring in dry semiproduct, the finished product of crossing, and eliminates the residual stress in timber drying.

The flow process of described assembled formation step: 1. at first adjust mould, described mould is comprised of a central point 5 and many extension arms 6 and circular vertical rod 7; 2. with bottom girder main body 1 bending that special fixture 8 will be held anti-explosion groove 2 successfully, be fixed on mould, special fixture 8 is screw thread winding devices, by bottom girder main body 1 and circular vertical rod 7 fastening clamps together; 3. after the radian moulding, trapezoidal De Mu Dwelling bar 3 Yi Dwelling are entered in anti-explosion groove 2; 4. the exposed parts that will locate Mu Dwelling bar 3 polishes flat; 5. stick decoration panel 4.

Above-described embodiment is just in order at length to set forth the utility model; and can not be interpreted as the restriction to the utility model protection domain; in field known in this field; it exists multiple replacement scheme or variation; under the prerequisite without prejudice to the utility model essential meaning, all fall into protection domain of the present utility model.

Claims

1. the monolithic arc bottom girder of a solid wood spiral stairs, it is characterized in that, described arc bottom girder comprises the all-in-one-piece main body consisted of original plank, the extrados of described arc bottom girder main body is uniformly distributed some anti-explosion grooves, in anti-explosion groove, insert trapezoidal location wood Dwelling bar, post decoration panel on the extrados of described arc bottom girder main body.