CN2700616Y

CN2700616Y - Metal safety protection screen

Info

Publication number: CN2700616Y
Application number: CN 200420044405
Authority: CN
Inventors: 罗焕康
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-04-03
Filing date: 2004-04-03
Publication date: 2005-05-18
Anticipated expiration: 2014-04-03

Abstract

The utility model discloses a metal safety protective net hood, including a strip-shaped net bone (1), an inner net bone(3), an outer net bone(4) and a circular net thread(2). The strip-shaped net bone is arranged with radial form; the inner net bone, the outer net bone and the circular net thread are provided between the two ends of the strip-shaped net bone; the inner side edge of each strip-shaped net bone (1) is provided with tooth-shaped grooves (5)with equal distance, and the circular net thread (2) is embedded in the tooth-shaped grooves; one end of the strip-shaped net bone (1) is provided with a bulge (11) which is embedded to be loaded in a corresponding hole body (41)provided on the outer net bone(4); the other end of the strip-shaped net bone (1) is provided with a convex granule (12) which is embedded to be loaded in a corresponding hole site (42)provided on the inner net bone(3). The utility model can serve as a protective net hood for various fans.

Description

The metallic safety protection guard

Technical field

The utility model relates to a kind of protection net of fan.

Background technique

At present, all kinds of fans of space heater, family expenses fan and industrial usefulness, by radial strip net bone of arranging and place Intranet bone, outer net bone and circular netting twine between the strip net bone two ends to form, and each parts all is made with metal, adopts and all adopts the mode of welding to be formed by connecting between each component of protection net of this structure; Existing protection net because rosin joint, often has 10～20% reject rate on welding procedure, reclaim these waste products and weld re-plating again and can raise the cost again, and a large amount of soldering points can make manufacturing efficiency low again.

Summary of the invention

The utility model has overcome the defective on the prior art, provides a kind of and can enhance productivity, reduce the metallic safety protection guard of reject rate.

Metallic safety protection guard of the present utility model comprises radial strip net bone of arranging and places Intranet bone, outer net bone and circular netting twine between the strip net bone two ends, the inner side edge of each strip net bone equidistantly offers profile of tooth and colludes groove, and circular netting twine insert is in wherein; Described strip net bone one end is provided with projection, and insert is gone on the outer net bone in the corresponding hole body, and the other end of strip net bone is provided with protruding grain, and insert is gone into corresponding Kong Weizhong on the Intranet bone.

The mode of structure of splicing mutually owing to employing between each parts of metallic safety protection guard of the present utility model, thereby be convenient to drawing, enhance productivity, and can avoid occurring the situation of rosin joint, the circular netting twine of weldering wound, reduce reject rate.

Description of drawings

Fig. 1 is a plan view of the present utility model;

Fig. 2 is that the A-A of Fig. 1 is to the view enlarged view;

Fig. 3 is the stereogram of Fig. 1.

Embodiment

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

Fig. 1, Fig. 2, metallic safety protection guard shown in Figure 3, comprise the radial strip net bone of arranging 1 and place Intranet bone 3, outer net bone 4 and circular netting twine 2 between strip net bone 1 two ends, the inner side edge of each strip net bone 1 equidistantly offers profile of tooth and colludes groove 5, and circular netting twine 2 inserts are in wherein; Described strip net bone 1 one ends are provided with projection 11, and insert is gone on the outer net bone 4 in the corresponding hole body 41, and the other end of strip net bone 1 is provided with protruding grain 12, and insert is gone on the Intranet bone 3 in the corresponding position, hole 42.

This practical metallic safety protection guard is to make like this: earlier in protruding 12 position of injecting on the Intranet bone 3, hole 42 with strip net bone 1, punching press is fastening again, then collude the circular netting twine 2 of packing in the groove 5 in the profile of tooth of strip net bone 1, this profile of tooth of punching press is colluded groove 5 and just circular netting twine 2 can be fixed in wherein, at last the hole body 41 of outer net bone 4 is packed into the projection 11 of strip net bone 1, drawing.

For improving the intensity of protection net, described strip net bone 1 can be arranged to flat bar, and described Intranet bone 3, outer net bone 4 also can correspondingly be arranged to the band iron ring; Described profile of tooth is colluded groove 5 also can be arranged to V-shaped groove, rectangular slot or other shape adapting.

Claims

1. metallic safety protection guard, comprise radial strip net bone of arranging (1) and place Intranet bone (3), outer net bone (4) and circular netting twine (2) between strip net bone (1) two ends, it is characterized in that: the inner side edge of each strip net bone (1) equidistantly offers profile of tooth and colludes groove (5), and circular netting twine (2) insert is in wherein; Described strip net bone (1) one end is provided with projection (11), and insert is gone in the last corresponding hole body (41) of outer net bone (4), and the other end of strip net bone (1) is provided with protruding grain (12), and insert is gone into Intranet bone (3) and gone up in the position, corresponding hole (42).