CN2903218Y - Second keel with 3-D groove - Google Patents

Abstract

The utility model discloses a secondary joist with stereo groove comprising of a top tendon, a web and a lower punch wing which is sequentially connected together, wherein both ends of the web are provided with two rabbets which are central line symmetry along the longitude direction of the web and have inverse connecting surface, the rabbet comprises an attachment lingua and an attachment plug arranged on the web, the attachment plug comprises a main body and a frame, one end of the frame is arranged on the web, the other end of the frame extends toward the outside of the web, the main body is arranged at the frame and the outside of the web, the surfaces of the main body and the frame are concave-down to the surface of the web, the depth of the indentation of the surface of the frame is larger than the depth of the indentation of the surface of the attachment plug main body, a first latch hook with convex construction which is adjoined to the outward edge of the main body is arranged at the main body, the attachment lingua with an upward convex construction is arranged at one end of the web, the opening end of the attachment lingua which is toward the direction of the plug forms a hatch with the plug, and the distance from the first latch hook to the nearest lateral edge of the web is equal to the distance from the lateral edge to the hatch. The secondary joist of the utility model has convenient and tight connection, and shorter construction time.

Description

Secondary joist with stereo groove

Technical field

The utility model relates to a kind of skeleton of interior decoration and hangs syndeton, relates to a kind of can the cooperation with main joist especially, and interconnective secondary joist.

Background technology

Improvement along with people's life housing condition, to improving constantly that interior decoration requires, the ceiling furred ceiling becomes a kind of finishing means commonly used, but in the interior decoration furred ceiling engineering of prior art, dalle needs skeleton as primary structure member, according to actual finishing work needs, material therefor often need interconnect and carry out spreading and handle, also be during common furred ceiling is installed, need carry out main joist and be connected with the main joist spreading, secondary joist is connected with the secondary joist spreading, interconnection between main joist and the secondary joist, these connections not only will guarantee certain aesthetic property, and more important is to guarantee the absolute fastness that connects between each keel.At present, main joist and main joist, secondary joist are connected the mode that all adopts the head and the tail termination directly to engage usually with mutual spreading between the secondary joist, and the screens mode of intersecting is adopted in being connected between main joist and the secondary joist mostly.Yet secondary joist structure for available technology adopting, because plug is a slabbed construction in the interconnective tenon structure, its front view as shown in Figure 1, interconnect when cooperating at tongue with the adjacency secondary joist, accurately contraposition, though the purpose that can reach the secondary joist lengthening after connection is finished and be connected firmly, the workman operates relatively difficulty of installation in the connection procedure, the engineering time of cost is longer, and efficiency of construction is also relatively low.

Summary of the invention

The utility model promptly is a kind of main joist with stereo groove that proposes at the shortcoming that exists in the above-mentioned prior art, and this main joist is simple to operate when carrying out connection, and the engineering time is short.

The utility model is realized by following technical proposals:

A kind of secondary joist with stereo groove, comprise the top muscle, web and the bottom wing that connect successively, described web two ends are provided with along web length direction center line symmetry and two opposite tenons of joint face, described tenon comprises tongue and the plug that is arranged on the web, described plug comprises main body and framework again, and described framework one end is arranged on the web, and the other end extends to web outside, described main body is arranged on the framework, the outside of web; The surface of described main body and framework all is recessed in web surface, and the recessed degree of depth in described framework surface is greater than the recessed degree of depth in plug body surface; Described main body is provided with first latch hook of bulge-structure, is adjacent to the external side of main body limit; Described tongue is arranged on web one end, the structure that raises up, and its openend is towards plug direction, thereby and form a window between the plug, the distance of described first latch hook and the nearest side of web equals the distance of this side of web to window.

Further, described tenon outermost end side has lead angle.

Further, described tenon width is less than web width.

Further, the width of described wing plate is greater than the width of described top muscle.

Further, described wing plate is the low groove structure, and described slot opening end has symmetrical flanging.

Further, described tenon is provided with second latch hook, and the described second latch hook surface is lower than the plug body surface.

Compared with prior art, the secondary joist that the utility model proposed is simple in structure, and is easy to operate during a plurality of secondary joist connection, be connected firmly, and the engineering time is short the efficiency of construction height.

Description of drawings

Fig. 1 is the front view of secondary joist in the prior art;

Fig. 2 is a kind of cross-sectional view with secondary joist of stereo groove of the utility model specific embodiment;

Fig. 3 is a kind of front view with secondary joist of stereo groove of the utility model specific embodiment;

Fig. 4 is that A-A among Fig. 3 is to profile.

The specific embodiment

The utility model is further introduced below in conjunction with the drawings and specific embodiments, but not as to qualification of the present utility model.

A kind of secondary joist with stereo groove, comprise top muscle 1, web 2 and bottom wing 3, its cross sectional representation as shown in Figure 2, top muscle 1 is the square tube type structure, web 2 is a plate-like structure, and bottom wing 3 is a groove structure, and the openend of groove has symmetrical flanging, not only play the effect of strengthening intensity, and good looking appearance.Top muscle 1 is connected by web 2 with bottom wing 3, and top muscle 1 and bottom wing 3 be kernel of section line with web 2 be centerline axis to symmetrical structure, the width of top muscle 1 is less than the width of bottom wing 3.For convenience with being connected of main joist, attractive in appearance after guarantee connecting, can web 2 and the length direction of bottom wing 3 be set to hierarchic structure, web 2 and top muscle 1 junction length and top muscle 1 equal in length, web 2 and bottom wing 3 junction equal in length and less than length, the lower edge of bottom wing 3 and top muscle 1 equal in length of top muscle 1.

With reference to figure 3 and shown in Figure 4, the two ends of web 2 are respectively arranged with the duplicate tenon 4 of structure, the position of two tenons 4 is with the length direction center line symmetry of web 2, tenon 4 width are less than web 2 width, tenon 4 is arranged on the termination of web 2, include plug 41 and tongue 42, plug 41 comprises main body 411 and framework 412 again, one end of framework 412 is arranged on the web 2, the other end extends to web 2 outsides, and main body 411 is arranged on the framework 412, the lateral direction of web 2, main body 411 and framework 412 termination direction outer side edges have chamfering, the guiding when conveniently being connected with the opposite side keel; The surface of main body 411 and framework 412 all is recessed in the surface of web 2, and framework 412 surfaces are bigger than the plug body 411 surperficial recessed degree of depth.Plug body 411 is provided with first latch hook 5 and second latch hook 6, first latch hook 5 is a bulge-structure with respect to tongue main body 411 surfaces, in abutting connection with the outer side edges setting of tongue main body 411, second latch hook 5 is a concave configuration with respect to tongue main body 411 surfaces, is arranged on the middle part of tongue main body 411; One end of web 2 is provided with the tongue 42 of the structure that raises up, and the openend of tongue 42 is towards the direction of plug 41, thereby and the distance that forms a window 7, the first latch hooks 5 and web 2 nearest sides between the tongue equal the distance of web 2 these sides to window 7.

When utilizing above-mentioned secondary joist to carry out the spreading connection, without any need for other connector, the method step of its connection is: the tenon 4 of two each and every one secondary joists is directly pegged graft, at this moment, first latch hook 5 on the secondary joist tenon 3 enters in corresponding web 2 windows by the tongue below of another secondary joist at this moment, realize that with the side of window 7 reliable screens is connected, because tongue has certain guidance quality, thereby two secondary joist connection procedures are simple to operate, save the engineering time, improved efficiency of construction.

Claims (6)

1, a kind of secondary joist with stereo groove, comprise the top muscle, web and the bottom wing that connect successively, it is characterized in that, described web two ends are provided with along web length direction center line symmetry and two opposite tenons of joint face, and described tenon comprises tongue and the plug that is arranged on the web, and described plug comprises main body and framework again, described framework one end is arranged on the web, the other end extends to web outside, and described main body is arranged on the framework, the outside of web; The surface of described main body and framework all is recessed in web surface, and the recessed degree of depth in described framework surface is greater than the recessed degree of depth in plug body surface; Described main body is provided with first latch hook of bulge-structure, is adjacent to the external side of main body limit; Described tongue is arranged on web one end, the structure that raises up, and its openend is towards plug direction, thereby and form a window between the plug, the distance of described first latch hook and the nearest side of web equals the distance of this side of web to window.

2, a kind of secondary joist with stereo groove as claimed in claim 1 is characterized in that, described tenon outermost end side has lead angle.

3, a kind of secondary joist with stereo groove as claimed in claim 1 is characterized in that, described tenon width is less than web width.

4, a kind of secondary joist with stereo groove as claimed in claim 1 is characterized in that the width of described wing plate is greater than the width of described top muscle.

5, a kind of secondary joist with stereo groove as claimed in claim 1 is characterized in that, described wing plate is the low groove structure, and described slot opening end has symmetrical flanging.

6, a kind of secondary joist with stereo groove as claimed in claim 1 is characterized in that described tenon is provided with second latch hook, and the described second latch hook surface is lower than the plug body surface.

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