CN2778070Y

CN2778070Y - Brush core fastener

Info

Publication number: CN2778070Y
Application number: CN 200520101104
Authority: CN
Inventors: 陈琴
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-03-22
Filing date: 2005-03-22
Publication date: 2006-05-10
Anticipated expiration: 2015-03-22

Abstract

The utility model discloses a brush core fastener device, which comprises a fastener locking piece, wherein both ends of the top side of the fastener locking piece respectively and downwards extend two symmetrical positioning pins. Positions at the upper parts of the two positioning pins, which are adjacent to the top side of the fastener locking piece, are respectively provided with a circular arc outwards protruding; both ends of the top side are respectively in an apical angle. After the brush core fastener filled with brush filaments is punched and planted to holes of a brush body, because of the dual acting force of the protrusion of the circular arc and the apical angles at both ends of the top side on hole walls of the holes, the fastener locking piece is firmly clamped in the holes; thus, the brush filaments do not easily fall off; the durability and the firm degree of the brush are enhanced. For making brush filament clusters clamped in fastener locking grooves and making the two positioning pins further clamped with the hole walls of the holes after the two positioning pins enter the bottoms of the holes, positions at the lower ends of the two positioning pins, which are adjacent to the outer sides of the bottoms, also respectively and upwards extend two side angles. The utility model has the advantages of simple structure and low cost, and is widely suitable for various brushes punched and planted with brush filaments.

Description

A kind of brush core is buckled

Technical field

The utility model relates to a kind of brush core to be buckled, and specifically a kind of silk of will brushing is fixed on the interior device of brush body hole.

Technical background

Brush is in people's daily life, industrial circle is used very wide a kind of instrument, is fixed with bristle or brush silk bunch on its brush body usually.General, brush silk bunch fixes by viscose glue or the spacer fixed form is rooted in the hole of brush body.Block and be fixed in the brush body hole in order to brush silk, the brush manufacturer of only a few adopts steel wire or stalloy to make the brush core and buckles, and after the filling wherein of brush silk, the brush core is buckled in the hole that punching press plants brush body.This brush core is buckled and is generally " ∩ " type structure, two angles are extended at grip tab top margin two ends downwards, catch surface is smooth, so design exists following deficiency: brush is when work, rotate and to produce centrifugal force, because the smooth surface of snap close, not strong with the adhesive force of hole hole wall, and the top margin two ends are smooth, grip tab can't be puted forth effort in the hole hole wall and do not have an effective fixation, therefore, be subjected to the action of centrifugal force snap close loosening easily even skid off, cause the brush silk to come off, seriously influenced the service property (quality) and the service life of brush.

Summary of the invention

The purpose of this utility model is at the deficiencies in the prior art, a kind of brush core buckle device simple in structure, reasonable in design is provided, wherein, be provided with the circular arc projection on snap close angle top, the top margin two ends are designed to the drift angle of certain angle, when dash the brush core of filling out the brush silk buckle be stamped plant in the brush body hole after, can be clamped in the brush body hole, make brush silk difficult drop-off, improved the durability and the firmness of brush.

The technical scheme that its technical problem that solves the utility model adopts is as follows: a kind of brush core is buckled, comprise a grip tab, grip tab top margin two ends extend to form two angles of symmetry respectively downwards, the inboard lock buckling groove that forms of two angles and top margin, it is characterized in that: on two angle tops, near the position of grip tab top margin, there is a circular arc outwards outstanding respectively, the two ends of top margin then respectively become drift angle.

Described two angle lower ends can be stretched out two side angles respectively near the position of bottom on the lateral.

Buckle punching press and plant corresponding brush body hole for more effectively brushing core, and chucking is fixing, the length that described brush core is buckled should slightly be shorter than the corresponding hole degree of depth, the width of top margin is slightly larger than the outstanding horizontal external diameter width of circular arc, and the outstanding horizontal external diameter width of circular arc is slightly larger than the horizontal width in the two angles outside.

Brush core of the present utility model is buckled, and will brush silk during use earlier and be filled in the lock buckling groove, and the size of lock buckling groove decide what according to brush silk, after lock buckling groove blocks the brush silk, the narrow end of grip tab be two angles down, punching press is planted in the brush body hole.The stressed inside extruding of angle, chucking brush silk bunch also makes it to concentrate to the outstanding position of circular arc, and the outstanding position of circular arc is squeezed and expands, and has strengthened the adhesive force with the hole hole wall, makes grip tab be difficult for deviating from.Simultaneously, the design of the drift angle at top margin two ends can make more firm being supported on the hole hole wall of grip tab be difficult for deviating from.

The utility model is simple in structure, practical, and production cost is low, can be applicable to widely in the brush of various punching press plantation brush silks.

Below, further specify the utility model in conjunction with the accompanying drawings and embodiments.

Description of drawings

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

The specific embodiment

As shown in Figure 1, it is that cold-reduced sheet by 0.6-1.2mm is stamped to form that the brush core of this embodiment is buckled, grip tab 1 extends to form two angles 3 of symmetry respectively downwards from top margin 2 two ends, top margin 2 and two angles, the 3 inboard lock buckling grooves 4 that form, two angles, 3 tops respectively have a circular arc to give prominence to 5 near the position of top margin 2, and the two ends of top margin 2 respectively become drift angle 6.

Shown grip tab 1 length slightly is shorter than the degree of depth of corresponding hole, and the width of top margin 2 is slightly larger than the horizontal width of the outstanding 5 both sides external diameters of circular arc, and the brush core of the brush silk when filling is buckled and is clamped in the hole, and the brush silk is bunch stressed to be concentrated to outstanding 5 positions of circular arc.The outside width of two angles 3 is more smaller than corresponding hole width, after this just makes the brush silk bunch dash to fill out lock buckling groove, described brush core is buckled punching press plant in the brush body hole, and the angle 3 of grip tab 1 can be implanted in the hole smoothly.The fulcrum of top margin 2 two ends drift angles 6 is fixed on the hole hole wall firmly, makes grip tab 1 be difficult for deviating from.Because the double reaction plus of circular arc outstanding 5 and 6 pairs of hole hole walls of top margin 2 two ends drift angles can make firm being clamped in the hole of grip tab, has strengthened the service property (quality) of brush.

Further, two angles, 3 lower ends are stretched out two side angles 7 respectively near the position of bottom on the lateral, when grip tab 1 is clamped in the hole, two side angles 7 are stressed to be helped the brush silk bunch further is clamped in the lock buckling groove 4, simultaneously, because the outstanding design of the outside, two angles, 3 lower ends two side angles 7 can make two angles 3 after entering the hole bottom, because tension force effect and hole wall further tighten.

Claims

1. a brush core is buckled, comprise a grip tab, grip tab top margin two ends extend to form two angles of symmetry respectively downwards, the inboard lock buckling groove that forms of two angles and top margin, it is characterized in that: described two angle tops, near the position of grip tab top margin, there is a circular arc outwards outstanding respectively, the two ends of top margin then respectively become drift angle.

2. a kind of brush core according to claim 1 is buckled, and it is characterized in that: two angle lower ends are stretched out two side angles respectively near the position of bottom on the lateral.

3. a kind of brush core according to claim 1 and 2 is buckled, it is characterized in that: what the brush core was buckled is shorter in length than the corresponding hole degree of depth, the width of grip tab top margin is greater than the outstanding horizontal external diameter width of circular arc, and the horizontal external diameter width that circular arc is given prominence to is greater than the horizontal width in the two angles outside.