CN201357136Y

CN201357136Y - Roller brush

Info

Publication number: CN201357136Y
Application number: CNU2009201123041U
Authority: CN
Inventors: 何朝良; 何朝晖
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-01-09
Filing date: 2009-01-09
Publication date: 2009-12-09
Anticipated expiration: 2019-01-09

Abstract

The utility model relates to a roller brush, comprising a bent pole with a horizontal shaft at one end and a roller, the other end of the bent pole is provided with a holding end; the roller comprises a core pipe and a brush connected outside the core pipe, the wall of the front end part of the core pipe is bent inwards to press into an end part closure, the rear end part of the core pipe is fixed with a base body, and he core pipe is arranged on the horizontal shaft of the bent pipe rotationally by the base body; the roller brush is characterized in that: the roller brush further comprises a front end cover, the middle part of the front end cover is provided with an axial through hole for leading the horizontal shaft to penetrate through, and the outer surface of the front end cover is provided with a contracting neck part, a mounting hole is formed in the middle part of the end part closure, the front end cover is embedded in the mounting hole for leading the contracting neck part to be matched with the mounting hole; compared with the prior art, the roller brush has the advantages that: the horizontal shaft of the bent pole can penetrate through the core pipe of the whole roller brush and is supported in the axial through hole of the front end cover, so as to ensure the roller to be rotated stably and effectively overcome the shaking in the prior art.

Description

A kind of rotary broom

Technical field

The utility model relates to a kind of rotary broom.

Background technology

The applicant once designed a novel rotary broom, it as the Chinese patent publication number " cylinder and preparation method thereof and the rotary broom that adopts this cylinder that are used for rotary broom " announcement of CN101209541, this rotary broom includes the knee that an end is trunnion axis, the other end of this knee connects one handle, a cylinder that rotates around trunnion axis is installed on the described trunnion axis, this cylinder is by the core pipe, be connected bristle and end cap composition that this core pipe outside makes of tweed, wherein bristle has the core of being positioned at pipe circumferential surface respectively, the circumference bristle of end cap outside and front end face bristle constitute, the leading section tube wall of core pipe bends inwards and is pressed into described end cap, be positioned at the outer bristle of described core pipe leading section and formed described front end face bristle thereupon, the rearward end of core pipe fixedly installs the splicing sleeve of a band trepanning, dispose in this trepanning can be in this trepanning the axle sleeve that rotates of axial limiting, described trunnion axis then tightly is inserted in this axle sleeve, and core bore and splicing sleeve external diameter are set to interference fit.Adopt such rolling brush, can simplify significantly and make and assembly technology, shorten the production cycle, finally can reduce the production cost of rotary broom.But only adopt the splicing sleeve of core pipe rearward end to fix owing to support the knee trunnion axis of whole cylinder, what therefore its cylinder of rotary broom of this structure generally should not be provided with is long, otherwise, when cylinder be provided with longer the time, in use, drum front end is not owing to there is a support component, and cylinder is easy to generate when rotating and phenomenon such as rocks and influence normal use.

The utility model content

Technical problem to be solved in the utility model is to provide a kind of simple in structure at above-mentioned prior art, though easy for installation and cylinder be provided with longer, use still rotary broom comparatively stably.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: this rotary broom comprises that an end is the knee and the cylinder of trunnion axis, the other end of this knee becomes holding end, described cylinder includes a core pipe, be connected the bristle of this core pipe outside, the leading section tube wall of described core pipe bends inwards and is pressed into an end cap, the rearward end of described core pipe is fixed with a pedestal, this core pipe is installed on the trunnion axis of knee rotationally by this pedestal, it is characterized in that: also comprise a drive end bearing bracket, have an axially extending bore that can supply described trunnion axis to pass at the middle part of this drive end bearing bracket, and has a necking part on the outer surface of this drive end bearing bracket, and the middle part of above-mentioned end cap is formed with an installing hole, and described drive end bearing bracket is embedded in this installing hole and described necking part is matched with installing hole.Like this, the trunnion axis of knee can run through the core pipe of whole cylinder, and is supported in the drive end bearing bracket, makes the cylinder rotation more steady, and phenomenon can not shake; Simultaneously, the snap fit between drive end bearing bracket and the end cap, dismounting is more prone to.

Generally, the leading section of core pipe and the distance of the axial length between the rearward end are bigger, for the trunnion axis that guarantees knee can stretch in the axially extending bore of drive end bearing bracket smoothly, as improvement, in described core pipe, can be furnished with the tube connector that is set on the described trunnion axis, the two ends of this tube connector are individually fixed in described pedestal and drive end bearing bracket, and this moment, tube connector can play the effect of guide pipe, made the trunnion axis of knee can easily pass through core pipe inside smoothly.

What be highly profitable is, described drive end bearing bracket is positioned at the insertion section of described installing hole inboard and designs tapered, the large-diameter portion of this insertion section front end connects described necking part, and the minor diameter part of this rear end, insertion section inserts in the described tube connector, helps the installation of drive end bearing bracket and tube connector.Simultaneously, the minor diameter part of rear end, insertion section is designed to the straight tube shape, and can have designed pawl on the surface of straight tube, make be connected between drive end bearing bracket and the tube connector more firm.

Described pedestal can adopt existing structure, but comparatively simple structure is one to be tight with at the rear end cap of core pipe rearward end, has axial hole at the middle part of this rear end cap and extends and the described tube connector joint pin of close-fitting mutually.

Described necking part surface can be designed and be tooth-shape structure, makes necking part be tight with at installing hole.

Compared with prior art, advantage of the present utility model is: by be embedded drive end bearing bracket in the end cap of core pipe front end, make the trunnion axis of knee can run through the core pipe of whole cylinder and be supported in the axially extending bore of drive end bearing bracket, thereby can guarantee that cylinder rotates reposefully, and overcome shaking phenomenon of the prior art effectively; Simultaneously, the snap fit between drive end bearing bracket and the end cap makes to assemble up conveniently, also is convenient to fixedlying positioning of drive end bearing bracket.

Description of drawings

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

Fig. 2 is the rolling structure schematic diagram among Fig. 1;

Fig. 3 is the structural representation of drive end bearing bracket among Fig. 1.

The specific embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As shown in Figure 1 to Figure 3, this rotary broom comprises that an end is the knee 6 of trunnion axis 61, and knee 6 integral body are " 7 " font, and a cylinder 1 that rotates around trunnion axis is installed on the trunnion axis 61, and the other end of knee connects one handle 7, so that the operator grips.Wherein, cylinder 1 again by the core pipe 3 that adopts plastic material to make, be bonded with the bristle 2 and the end cap 31 of making in core pipe outside and form of tweed.And bristle 2 has the circumference bristle and the front end face bristle that are positioned at described core pipe circumferential surface, end cap outside to constitute respectively.In the present embodiment, this end cap 31 is integral part with the core pipe, promptly adopts following preparation method: (1) fixes the bristle of making of tweed by the bonding or hot mode of melting of glue earlier on the long core pipe of plastics outer peripheral face; (2) follow the core pipe that the above-mentioned long core pipe of plastics that has bristle is cut into as required Len req; (3) again core pipe leading section tube wall is heated; (4) the core pipe leading section tube wall after will heating at last bends inwards and is pressed into end cap, is positioned at the front end face bristle that the outer bristle of core pipe leading section has formed rolling brush thereupon.

The rearward end of above-mentioned core pipe 3 is fixed with a pedestal, the middle part of the end cap 31 of core pipe is formed with an installing hole 32, be embedded with a drive end bearing bracket 8 in this installing hole, also be furnished with tube connector 4 in the core pipe 3, the two ends of this tube connector 4 are individually fixed in pedestal and drive end bearing bracket 8.

In the present embodiment, the middle part of above-mentioned drive end bearing bracket 8 has an axially extending bore 82 that can supply trunnion axis to pass, and sees also Fig. 3, has a necking part 81 on the outer surface of this drive end bearing bracket 8, and after being embedded, this necking part 81 matches with installing hole 32; Simultaneously, drive end bearing bracket 8 is positioned at that insertion section 83 design of installing hole 32 inboards is tapered, and the large-diameter portion of this insertion section front end connects necking part 81, the minor diameter part of this rear end, insertion section be designed to that straight tube inserts in the tube connector 4 and with tube connector 4 close-fitting mutually.In order to make between straight tube and the tube connector 4, close-fitting gets more firmly between necking part 81 and the installing hole 32, in the surface design of straight tube pawl 85 is arranged, and the necking part surface design is tooth-shape structure 86.

And above-mentioned pedestal is one to be tight with at the rear end cap 5 of core pipe rearward end, has axial hole at the middle part of this rear end cap and extends and described tube connector 4 joint pin 51 of close-fitting mutually.

During assembling, after trunnion axis 61 passed rear end cap 5, tube connector 4, drive end bearing bracket 8 successively, sheathed packing ring 10 backs and nut 9 bolts can make the go for a stroll trunnion axis of bar of cylinder freely rotate.To move axially on trunnion axis in order preventing to roll simultaneously, on the trunnion axis in the rear end cap outside, also to have positioning convex point, and be with banking stop at this place.

Claims

1, a kind of rotary broom, comprise that an end is knee of trunnion axis (61) (6) and cylinder (1), the other end of this knee becomes holding end, described cylinder includes a core pipe (3), be connected the bristle (2) of this core pipe outside, the leading section tube wall of described core pipe (3) bends inwards and is pressed into an end cap (31), the rearward end of described core pipe (3) is fixed with a pedestal, this core pipe (3) is installed on the trunnion axis (61) of knee rotationally by this pedestal, it is characterized in that: also comprise a drive end bearing bracket (8), have an axially extending bore (82) that can supply described trunnion axis to pass at the middle part of this drive end bearing bracket (8), and has a necking part (81) on the outer surface of this drive end bearing bracket (8), and the middle part of above-mentioned core tube end end socket (31) is formed with an installing hole (32), and described drive end bearing bracket (8) is embedded in this installing hole (32) and described necking part is matched with installing hole.

2, rotary broom according to claim 1 is characterized in that: be furnished with the tube connector (4) that is set on the described trunnion axis in described core pipe (3), the two ends of this tube connector (4) are individually fixed in described pedestal and drive end bearing bracket (8).

3, rotary broom according to claim 2, it is characterized in that: it is tapered that described drive end bearing bracket (8) is positioned at the inboard insertion section design of described installing hole (32), the large-diameter portion of this insertion section front end connects described necking part, and the minor diameter part of this rear end, insertion section inserts in the described tube connector (4).

4, rotary broom according to claim 3 is characterized in that: the minor diameter part of described insertion section end is designed to and described tube connector (4) straight tube of close-fitting mutually, and the surface design of this straight tube has pawl (85).

5, according to the described rotary broom of the arbitrary claim of claim 1 to 4, it is characterized in that: described pedestal is one to be tight with at the rear end cap (5) of core pipe rearward end, has axial hole at the middle part of this rear end cap and extends and the described tube connector joint pin of close-fitting (51) mutually.

6, according to the described rotary broom of the arbitrary claim of claim 1 to 4, it is characterized in that: described necking part surface design is tooth-shape structure (86).