CN2685433Y

CN2685433Y - Tongued and grooved keel

Info

Publication number: CN2685433Y
Application number: CN 200420007311
Authority: CN
Inventors: 杨沂
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-03-17
Filing date: 2004-03-17
Publication date: 2005-03-16
Anticipated expiration: 2014-03-17

Abstract

The utility model provides a tongued and grooved keel comprising a main keel and an assistant keel. The cross section of the assistant keel is an opening rectangle. The opening rectangle comprises a top surface connected with a left side surface and a right side surface respectively connected with a left short edge and a right short edge inward bending whose ends are respectively provided with a left inner turning edge and a right inner turning edge inward bending 180 degrees and the left inner turning edge and the right inner turning edge are respectively jointed with the left short edge and the right short edge. A longitudinal clipping opening slot plate unit corresponding to the transverse opening rectangle of the assistant keel is positioned on the lower edge of the main keel to be mutually plugged and tightly clipped. The clipping of the main keel and the assistant keel of the utility model has strong force point, uneasy deformation, firm clipping, endurance and simple installation. The clipping opening slot of the main keel has simple shape, the stamping process is good and the mould service life is long.

Description

A kind of cassette keel

Technical field

The utility model relates to the keel in the architectural hardware.

Background technology

Building field uses the internal rigid support of keel as ceiling furred ceiling or wall partition, and channel mainly is made up of main joist and rider keel.The cross section of the rider keel of prior art is by end face and connects minor face, this minor face head that left and right side, this left and right side respectively connect inside bending the in-flangess of 90 degree are upwards arranged, constitutes the opening rectangle and see Fig. 8.When the structure of 90 on this minor face degree in-flanges made and engages with main joist, it was softer to exist the force, yielding in the use, shortcomings such as clamping fastness difference.Being used to of prior art main joist installs the shape of the bayonet slot of rider keel and is made up of protruding, concave arc and circular arc, recess etc., exist complex-shaped, shortcoming such as the processing mold cost is higher, and die life is short.Therefore prior art has the perfect necessity of improvement, increases new kind.

Summary of the invention

The purpose of this utility model provides a kind of novel cassette keel, and origin of force was strong when its rider keel engaged with main joist, and is not yielding, engages firmly, durable, installs simple.The bayonet slot simple shape of its main joist, punching process character is good, and die life is long.

The purpose of this utility model is achieved in that

A kind of cassette keel, comprise main joist and rider keel, it is characterized in that: the cross section of its rider keel is the opening rectangle, this opening rectangle is to connect the left and right side by end face, this left and right side respectively connects the left and right minor face of inside bending, the left and right in-flanges of each oriented interior bending 180 degree of this left and right minor face termination, this left and right in-flanges is respectively fitted with left and right minor face and is constituted; There is the transverse opening rectangle of bayonet socket frid unit and rider keel longitudinally corresponding and can insert chucking mutually at the lower edge of main joist.

It is trapezoidal that the cross section of described main joist is opening, its two sides lower edge has the some groups of bayonet socket frid unit that communicate apart from the two sides of certain distance mutually, each bayonet socket frid unit is made of two ends bayonet slot and middle clamp, the every end of this centre clamp connects inner evagination roundlet arc by outer evagination orthodrome and constitutes, and the little circular arc of indent of the bayonet slot of little circular arc of this inner evagination and adjacency is tangent; This bayonet slot connects the indent great circle by indent roundlet arc and evagination chamfering circular arc constitutes; Clamp two ends and left and right bayonet slot shape symmetry in the middle of described, this bayonet slot two ends indent roundlet arc distance is from suitably and be able to be with the left and right minor face chucking of the rider keel that inserts.

1 to 3 convex tendon or concave bar are longitudinally respectively arranged on the left and right side of described rider keel.

Densely covered protruding, recessed point is respectively arranged on the end face of described rider keel and the left and right side.

The utility model has following actively useful effect:

The cross section of the rider keel of this product be by end face connect left and right side, this left and right side respectively connect minor face, this minor face termination of inside bending oriented in the in-flanges, this in-flanges of bending 180 degree with the minor face applying, constitute the opening rectangle.The structures of 180 degree in-flangess of this minor face termination make when engage with main joist, and origin of force is strong, and is not yielding, and the engaging firm and durable is installed simply.Advantages such as being used to of its main joist installs the shape of the bayonet slot of rider keel and only be made up of the convex-concave arc, has simple shape, and the processing mold cost is lower, and die life is long.

Description of drawings

Fig. 1 is the structural representation of the utility model one embodiment;

Fig. 2 is the elevation of Fig. 1;

Fig. 3 is the structural representation of rider keel among Fig. 1;

Fig. 4 is the structural representation of main joist among Fig. 1;

Fig. 5 is the lateral view of Fig. 4.

Fig. 6 is the structural representation of a bayonet socket frid unit among Fig. 4;

The same Fig. 3 of Fig. 7 is another embodiment;

Fig. 8 is the structural representation of the rider keel of prior art.

The specific embodiment

Accompanying drawing number

1. rider keel

101. end face 102. left surfaces 103. right flanks

104. left minor face 105. right minor face 106. left in-flangess

107. right in-flanges 108. opening rectangles 109. convex tendons

110. convex tendon 111. convex-concave points

2. main joist

201. clamp in the middle of bayonet socket frid unit 202. bayonet slot 203.

204. the little circular arc of evagination that outer evagination orthodrome 205. is inner

206. indent roundlet arc 207. indent orthodromes

208. evagination chamfering circular arc

Please refer to Fig. 1, Fig. 2, Fig. 3, the utility model is a kind of cassette keel, comprise main joist 2 and rider keel 1, the cross section of its rider keel 1 is the opening rectangle, this opening rectangle 108 is to connect left and right sides 102,103 by end face 101, this left and right side 102,103 respectively connect inside bending left and right minor face 104,105, these left and right minor face 104,105 terminations each oriented in bending 180 degree left and right in-flanges 106,107, this left and right in-flanges 106,107 each fit with left and right minor face 104,105 and constitute; There is the transverse opening rectangle 108 of bayonet socket frid unit 201 and rider keel 1 longitudinally corresponding and can insert chucking mutually at the lower edge of main joist 2.

Please refer to Fig. 4, Fig. 5, Fig. 6, it is trapezoidal that the cross section of described main joist 1 is opening, its two sides lower edge has the some groups of bayonet socket frid unit that communicate apart from the two sides of certain distance mutually, each bayonet socket frid unit 201 is made of two ends bayonet slot 202 and middle clamp 203, these centre clamp 203 every ends connect inner evagination roundlet arc 205 by outer evagination orthodrome 204 and constitute, and this inner evagination roundlet arc 205 is tangent with the indent roundlet arc 206 of the bayonet slot 202 of adjacency; This bayonet slot 202 connects indent orthodrome 207 by indent roundlet arc 206 and evagination chamfering circular arc 208 constitutes; Clamp 203 two ends and left and right bayonet slot 202 shape symmetries in the middle of described, these bayonet slot 202 two ends indent roundlet arcs 206 distances are suitably and be able to be with left and right minor face 104,105 chuckings of the rider keel 1 that inserts.

Please refer to Fig. 3,1 to 3 convex tendon or concave bar 109,110 are longitudinally respectively arranged on the left and right side 102,103 of described rider keel 1, in order to strengthen rigidity.

Please refer to Fig. 7, stamping forming densely covered protruding, recessed point 111 respectively arranged on the end face 101 of described rider keel 1 and the left and right side 102,103, in order to gain in strength, specious.

During enforcement, the material of described main joist 2 and rider keel 1 is the galvanized sheet of thick 0.5-1mm.

Claims

1. cassette keel, comprise main joist (2) and rider keel (1), it is characterized in that: the cross section of its rider keel (1) is the opening rectangle, this opening rectangle (108) is to connect a left side by end face (101), right flank (102), (103), this left side, right flank (102), (103) respectively connect the left side of inside bending, right minor face (104), (105), this left side, right minor face (104), (105) left side of each oriented interior bending 180 degree of termination, right in-flanges (106), (107), this left side, right in-flanges (106), (107) each and a left side, right minor face (104), (105) fit and constitute; There are longitudinally bayonet socket frid unit (201) corresponding with the transverse opening rectangle (108) of rider keel (1) and can insert chucking mutually at the lower edge of main joist (2).

2. cassette keel as claimed in claim 1, it is characterized in that: it is trapezoidal that the cross section of described main joist (1) is opening, its two sides lower edge has the some groups of bayonet socket frid unit that communicate apart from the two sides of certain distance mutually, each bayonet socket frid unit (201) is made of two ends bayonet slot (202) and middle clamp (203), the every end of this centre clamp (203) connects the inner little circular arc of evagination (205) by outer evagination orthodrome (204) and constitutes, and the little circular arc of this inner evagination (205) is tangent with the little circular arc of indent (206) of the bayonet slot (202) of adjacency; This bayonet slot (202) connects indent orthodrome (207) by the little circular arc of indent (206) and evagination chamfering circular arc (208) constitutes; Clamp (203) two ends and left and right bayonet slot (202) shape symmetry in the middle of described, this bayonet slot (202) little circular arc of two ends indent (206) distance are suitably and be able to be with left and right minor face (104), (105) chucking of the rider keel (1) that inserts.

3. cassette keel as claimed in claim 1 is characterized in that: 1 to 3 convex tendon or concave bar (109), (110) are longitudinally respectively arranged on the left and right side (102) of described rider keel (1), (103).

4. cassette keel as claimed in claim 1 is characterized in that: stamping forming densely covered protruding, recessed point (111) is respectively arranged on the end face (101) of described rider keel (1) and left and right side (102), (103).