CN201052005Y

CN201052005Y - Metal frame

Info

Publication number: CN201052005Y
Application number: CNU2007200065675U
Authority: CN
Inventors: 崔宽峻
Original assignee: Xiamen Innovation Metal Products Co Ltd
Current assignee: Xiamen Innovation Metal Products Co Ltd
Priority date: 2007-03-19
Filing date: 2007-03-19
Publication date: 2008-04-30
Anticipated expiration: 2017-03-19

Abstract

The utility model discloses a metal frame, which mainly comprises a plurality of cross and longitudinal bars, wherein the welds between the cross bars and the longitudinal bars are provided with at least one protruding point, the weld can be provided with one single point or multiple points, the protruding point shape can be triangle, square, trapezoid, roundness or irregular geometry graph, in spot welding the longitudinal bar contacts the protruding point on the cross bar with small contact area so that when the point is melted by high temperature, the longitudinal bar shall not be melted down to enhance the firmness of the welding.

Description

A kind of metal frame

Technical field

The utility model relates to a kind of metal frame, refers to a kind of metal frame that is formed by some crisscross pole being welded to each other especially.

Background technology

At present, the products such as laminate frame of the bedplate frame of many brandreth beds, metal rack are all for being welded to each other the metal frame that constitutes by some crisscross poles at infall.And the prior welding mode of this metal frame is spot welding, and weld forms bigger solder joint but spot welding is everlasting, and the surface of this solder joint is more coarse, therefore is everlasting and also need polishes after having welded, thereby make troubles to processing.And formed solder joint out-of-shape, can influence attractive in appearancely, especially for unfamiliar welder, the formed solder joint in welding back is thick more ugly, has influenced the quality of product greatly.

For this reason, some dealer adopts the mode of butt-joint to weld, and butt-joint is the positive and negative polarities that the weld of pole in length and breadth are connected to butt-welding machine, after adding electric current to the two poles of the earth, will produce high temperature, and weld welds together instant melting with both like this.This butt-joint mode can avoid forming thick ugly solder joint, therefore can obtain preferable outward appearance.But, the moment high temperature that butt-joint produced, Chang Yi makes pole fusing, especially for longitudinal holding pole, because it is thick and longitudinal rod is thinner that above-mentioned metal frame is generally transverse bar, longitudinal rod will have than large tracts of land and contact with transverse bar, so the high temperature of moment is easy to make longitudinal holding pole to fuse, thereby the increase percent defective, and then increase cost.

The utility model content

The purpose of this utility model is to provide a kind of metal frame that can increase solder joint place fastness when adopting butt-joint.

For achieving the above object, technical solution of the present utility model is:

A kind of metal frame, mainly being interlocked by plurality of cross bars and vertical pole is welded, and described cross bar is provided with at least one salient point at the weld with vertical pole.

Described salient point is triangle, square, trapezoidal, circle or irregular geometric figures.

Described salient point is the raised line at a whole piece of the solder side place of cross bar formation.

Described raised line cross section is triangle, square, trapezoidal, circle or irregular geometric figures.

Described cross bar is square tube, rectangular pipe, pipe, elliptical tube or channel-section steel.

After adopting such scheme, because the utility model is provided with at least one salient point at the weld of cross bar, like this when carrying out butt-joint, vertical pole is to contact with the salient point of cross bar, and its contact area is less, when because of the high temperature instant melting, can not make vertical pole fusing, thereby increase the fastness at solder joint place.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the partial enlarged drawing of Fig. 1;

Fig. 3-1 is to Fig. 3-the 10th, cross bar sectional schematic diagram of the present utility model.

The specific embodiment

As shown in Figures 1 and 2, metal frame described in the utility model mainly is that described cross bar 1 is provided with at least one salient point 11 at the weld with vertical pole 2 by plurality of cross bars 1 and vertical pole 2 staggered being welded.When carrying out butt-joint, vertical pole 2 is to contact with the salient point 11 of cross bar 1 like this, and its contact area is less, when because of the high temperature instant melting, can not make vertical pole 1 fusing, thereby has increased the fastness at solder joint place.

Described salient point 11 can only be arranged at the solder joint place, and for the ease of making, and form that also can section bar forms the raised line of a whole piece at the solder side place of cross bar 1.

Need to prove that described salient point 11 can be single, also can be a plurality of, and its shape also can be different shape.To shown in Fig. 3-10, be various forms of salient points as Fig. 3-1.As Fig. 3-1 is triangle list salient point; Fig. 3-2 is the triangle multi-convex point; Fig. 3-3 is square single salient point; Fig. 3-4 is square multi-convex point; Fig. 3-5 is circular single salient point; Fig. 3-6 is circular multi-convex point; Fig. 3-7 is trapezoidal single salient point; Fig. 3-8 is trapezoidal multi-convex point; Fig. 3-9 is the single salient point of irregular geometric figures; Fig. 3-10 is the irregular geometric figures multi-convex point.

Moreover the section of described cross bar 1 also can reach use occasion as required and be different shape.Continue to consult Fig. 3-1 to shown in Fig. 3-10, wherein: the cross bar shown in Fig. 3-1 and Fig. 3-2 is a square tube; Cross bar shown in Fig. 3-3 and Fig. 3-4 is a rectangular pipe; Cross bar shown in Fig. 3-5 and Fig. 3-6 is a pipe; Cross bar shown in Fig. 3-7 and Fig. 3-8 is an elliptical tube; Cross bar shown in Fig. 3-9 and Fig. 3-10 is a channel-section steel, and described salient point can be arranged at any one side of channel-section steel.

Claims

1. metal frame, mainly by plurality of cross bars and vertical pole is staggered is welded, it is characterized in that: described cross bar is provided with at least one salient point at the weld with vertical pole.

2. a kind of metal frame as claimed in claim 1 is characterized in that: described salient point is triangle, square, trapezoidal, circle or irregular geometric figures.

3. a kind of metal frame as claimed in claim 1 is characterized in that: described salient point is the raised line at a whole piece of the solder side place of cross bar formation.

4. a kind of metal frame as claimed in claim 3 is characterized in that: described raised line cross section is triangle, square, trapezoidal, circle or irregular geometric figures.

5. as claim 1 or 3 described a kind of metal frame, it is characterized in that: described cross bar is square tube, rectangular pipe, pipe, elliptical tube or channel-section steel.