CN201212234Y

CN201212234Y - Floor board keel

Info

Publication number: CN201212234Y
Application number: CNU2008200888751U
Authority: CN
Inventors: 施迎春; 施迎梅
Original assignee: HUZHOU MEIDIAN NEW MATERIAL CO Ltd
Current assignee: HUZHOU MEIDIAN NEW MATERIAL CO Ltd
Priority date: 2008-06-16
Filing date: 2008-06-16
Publication date: 2009-03-25
Anticipated expiration: 2018-06-16

Abstract

The utility model discloses a floor keel which comprises an upper support surface and a lower support surface, wherein a framework is arranged between the upper support surface and the lower support surface, an arc opening is arranged on the lower support surface, support legs at two sides are formed on the lower support surface through the arc opening, the arc opening is corresponding to a middle line of the width W2 of the lower support surface, two support legs are symmetrically distributed along the arc opening, the width W3 of the arc opening is less than the width W1 of the upper support surface, arc bulges are arranged at two sides of the joint part between the framework and the lower support surface and are symmetrically distributed along the framework, and the width W2 of the lower support surface is larger than the width W1 of the upper support surface. The utility model reduces the plainness requirement to the lower support surface and the ground so as to ensure that the keel and the solid wood floor keep horizontal as far as possible, and simultaneously, the stress of the keel and the lower support surface are dispersed through the arc opening, thereby the bearing property of the keel is strengthened; in addition, the concentrated stress at the joint part between the framework and the lower support surface can be reduced through the arc bulges, and the service life of the keel can be prolonged.

Description

A kind of common joists

Technical field

The utility model relates to a kind of Building Decoration Material, particularly relates to a kind of common joists.

Background technology

Wooden floor is the floor decorative material that natural timber drying processing back forms, natural wood texture and colour image that it presents, give nature, soft aesthetic feeling, because wooden floor characteristic cool in summer and warm in winter, that sense of touch is good makes it become the ideal material of ground surface finishings such as bedroom, parlor, study, favored by the customer simultaneously.Because the relative composite floor board of wooden floor, it installs complicated, and the back that especially makes moist, is exposed to the sun is yielding, therefore selects wooden floor will especially pay attention to the quality and the mounting process of timber.The installation of wooden floor needs laydown, common economical and practical type common joists mostly is " worker " font structure at present, comprise upper support face, lower support face, and the skeleton between upper support face and the lower support face, lay moistureproof cushion after on the upper support face wooden floor being installed, lower support face kiss the earth plays a supportive role by skeleton, because the lower support face is complete plane, therefore the planeness to ground requires high, ground or lower support face have out-of-flatness, out-of-level slightly, promptly can influence the installation quality of wooden floor; Skeleton is vertical with the lower support face in addition, and skeleton and lower support face are stressed when wooden floor is stressed concentrates, and the skeleton holding capacity is big.

The utility model content

Technical problem to be solved in the utility model is to provide a kind of common joists, can effectively solve existing " worker " font common joists the planeness that the lower support face contacts with ground is required height, influence installation quality easily, stressed concentrated with skeleton and lower support face, the problem that the skeleton holding capacity is big.

In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: a kind of common joists, comprise upper support face and lower support face, be provided with skeleton between upper support face and the lower support face, it is characterized in that: the lower support face is provided with arc opening, and the lower support face forms the feet of both sides by arc opening.

Further, arc opening is corresponding with the center line of lower support face width degree W2, and two feets are symmetrically distributed along arc opening.

Further, the width W 3 of arc opening is less than the width W 1 of upper support face.

Further, the connecting portion both sides of skeleton and lower support face are provided with arc convex, and arc convex is symmetrically distributed along skeleton, and arc convex can reduce the concentrated stress of skeleton and lower support face connecting portion.

Further, the width W 2 of lower support face is greater than the width W 1 of upper support face.

The utility model is owing to adopted technique scheme, downward arc opening is set on the lower support face, make the lower support face form two feets of both sides along arc opening, rely on two feet kiss the earths, reduced the contact area on keel and ground, reduced requirement to lower support face and ground flat degree, make keel and wooden floor maintenance level as far as possible, simultaneously arc opening makes the stressed dispersion of keel and lower support face, increased the bearing capacity of keel, and the connecting portion of skeleton and lower support face is provided with arc convex, can reduces the concentrated stress of skeleton and lower support face connecting portion, guarantee the stability of keel, prolong the application life of keel.

Description of drawings

The utility model is described in further detail below in conjunction with accompanying drawing:

Fig. 1 is the structural representation of a kind of common joists of the utility model;

Fig. 2 is a side structure schematic diagram of the present utility model.

The specific embodiment

As depicted in figs. 1 and 2, be a kind of common joists of the utility model, comprise upper support face 1 and lower support face 3, the width W 2 of lower support face 3 is greater than the width W 1 of upper support face 1, be provided with skeleton 2 between upper support face 1 and the lower support face 3, lower support face 3 is provided with arc opening 4, lower support face 3 forms left feet 31 and right feet 32 by arc opening 4, arc opening 4 is corresponding with the center line of lower support face 3 width W 2, it is the centre that arc opening 4 is positioned at lower support face 3, left side feet 31 and right feet 32 are symmetrically distributed along arc opening 4, the width W 3 of arc opening 4 is less than the width W 1 of upper support face 1, rely on left feet 31 and right feet 32 kiss the earths, reduced the contact area on keel and ground, reduced requirement, made keel and wooden floor maintenance level as far as possible lower support face 3 and ground flat degree, simultaneously arc opening 4 makes the stressed dispersion of keel and lower support face 3, has increased the bearing capacity of keel.Skeleton 2 is respectively equipped with left arc convex 51 and right arc convex 52 with the connecting portion both sides of lower support face 3, left side arc convex 51 and right arc convex 52 are symmetrically distributed along skeleton 2, arc convex can reduce the concentrated stress of skeleton 2 and lower support face 3 connecting portions, guarantee the stability of keel, prolong the application life of keel.

Claims

1, a kind of common joists, comprise upper support face (1) and lower support face (3), be provided with skeleton (2) between upper support face (1) and the lower support face (3), it is characterized in that: described lower support face (3) is provided with arc opening (4), lower support face (3) forms the feet (31,32) of both sides by described arc opening (4).

2, a kind of common joists according to claim 1 is characterized in that: described arc opening (4) is corresponding with the center line of lower support face (3) width W 2, and two feets (31,32) are symmetrically distributed along described arc opening (4).

3, a kind of common joists according to claim 1 and 2 is characterized in that: the width W 3 of described arc opening (4) is less than the width W 1 of described upper support face (1).

4, a kind of common joists according to claim 1 is characterized in that: described skeleton (2) is provided with arc convex (51,52) with the connecting portion both sides of lower support face (3), and arc convex (51,52) is symmetrically distributed along described skeleton (2).

5, a kind of common joists according to claim 1 is characterized in that: the width W 2 of described lower support face (3) is greater than the width W 1 of described upper support face (1).