CN2162414Y - Improved structure of moving steel-ring dust remover - Google Patents

Abstract

The utility model relates to an improved structure of a moving steel-ring dust remover. The dust remover comprises a cleaning device and fixed device. The cleaning device is movably connected with the fixed device through a shaft. The dust remover is arranged on the position where a vehicle brake is adjacent to a steel ring. The utility model uses braking actions in traveling of people to clean dust on the steel ring.

Description

Improved structure of moving steel-ring dust remover

The utility model relates to a kind of movable steel ring dust exhaustor structure-improved, is specially adapted to bicycle.

Application number is 92229011.3 and is called that the patent of " a kind of movable steel ring dust exhaustor " has proposed a kind of steel ring dust exhaustor; this dust exhaustor is made up of brush (being equivalent to clean-up device) and brush adapter plate (being equivalent to anchor fitting); and be fixed on before brake places brake near brush on the position of steel ring by the brush adapter plate; the brush leading edge is higher than the brake brake rubber block; the profile of its shape and steel ring radial section matches; utilize the power of the brake of people in driving a vehicle and chance to remove dust and silt on the steel ring, thereby reach the purpose of cleaning and protection steel ring.Because between the brush of this dust exhaustor and the brush adapter plate is to be dynamically connected, and also is to be dynamically connected between brush adapter plate and the brake, so the sense of motion of brush is identical with the sense of motion of brake brake rubber block.And the surface that needs dedusting on the steel ring is not to be a simple plane, but one by some planes and curved surface (can not decompose face again) form complex-curved.Each point normal is not on same direction on it.Will remove the lip-deep dust of steel ring effectively following two conditions must be arranged: one, the hairbrush bristle fully contacts steel ring surface each point; Two, the hairbrush bristle action is in the power relative equilibrium on steel ring surface.The shortcoming of the prior art that this paper quoted is: referring to accompanying drawing 1, the brake brake rubber block is (because of in the hairbrush back, so do not draw) sense of motion (3) and hairbrush 1(1) sense of motion (4), hairbrush 2(2) sense of motion (5) identical, and it is identical with the surface normal negative direction (6) of that part of steel ring (8) relative with brake rubber block, and the normal negative direction (7) of the surperficial each point of that part of steel ring (8) of the sense of motion of hairbrush 2 and the dedusting of corresponding need differs greatly, and promptly the angle between two directional lines is very big.Referring again to accompanying drawing 2.5 is the brush sense of motion among the figure.Gap when dust exhaustor is not worked between brush and the steel ring (8) equates, be △, when the angle between the steel ring two main surfaces is α, hairbrush 1(1) contact steel ring stroke be △, hairbrush 2(2) stroke then be △/sin(α-90 °), greater than △, when α=110 °, the stroke of hairbrush 2 is 2.9 times of △, and promptly hairbrush 2 can produce hairbrush 2 when serious and not contact the steel ring phenomenon than hairbrush 1 back contact steel ring when work.Because two hairbrush are different with respect to the surperficial distance that moves of steel ring, cause hairbrush bristle deformation extent difference, thereby bristle is also relative unbalanced with the application force between the steel ring simultaneously.Above factor all will influence the dust of removing the steel ring surface effectively, also can influence bristle service life.

The drawing of accompanying drawing explanation: Fig. 1 is the instruction diagram of the prior art quoted of this paper, and Fig. 2 is the partial enlarged drawing of Fig. 1.Fig. 3 is a front view of the present utility model, and Fig. 4 is the left view of Fig. 3, and Fig. 3, Fig. 4 have also represented the installation relation of the utility model on bicycle.Fig. 5, Fig. 6 are respectively the front views of other two routine specific embodiment of the present utility model, and the situation that is provided with of spring (19) and coil spring (21) has been described respectively among the figure.Fig. 7 is that the A of Fig. 6 is to enlarged partial view.Among the figure: 1, hairbrush 12, hairbrush 23, brake brake rubber block sense of motion 4, the sense of motion 5 of hairbrush 1, the sense of motion 6 of hairbrush 2, that part of steel ring surface normal negative direction 7 relative with brake rubber block, surface normal negative direction 8 by that part of steel ring of hairbrush 2 dedustings, steel ring 9, clean-up device 10, axle 11, anchor fitting 12, brake power 13, the rotation 14 of clean-up device, limiting stopper 15, jig arm 16, brake rubber box 17, steel ring hand of rotation 18, brake brake rubber block 19, spring 20, projection 21, coil spring

The purpose of this utility model will overcome above-mentioned shortcoming exactly, reaches the purpose of effective removing steel ring surface dirt.

The technical solution of the utility model is as follows: dust exhaustor comprises clean-up device, and anchor fitting and rotating limit device, clean-up device comprise some hairbrush, flexibly connects with axle between clean-up device and the anchor fitting.Dust exhaustor is fixed on brake near on the position of steel ring by anchor fitting, relative steel ring hand of rotation, clean-up device place brake brake rubber block front, gap between clean-up device and the steel ring is less than the gap between brake rubber block and the steel ring, and the leading edge shape of clean-up device and the profile of steel ring radial section match.The rotation that stops clean-up device to produce by rotating limit device when dust exhaustor is not worked because of centre offset, with this gap between device and the steel ring of keeping clean, rotating limit device comprises following two kinds of forms: (one) unidirectional elastic limit device, limit body are spring.(2) unidirectional rigidity inhibiting device, limit body is a limiting stopper.The dust exhaustor principle of work is as follows: referring to accompanying drawing 3, steel ring hand of rotation (17) among the figure, jig arm (15), anchor fitting (11), limiting stopper (14) (establish when not working the gap between the clean-up device and steel ring even), when brake power (12) effect makes clean-up device (9) near steel ring (8), hairbrush 1(1) because the less contact earlier of stroke steel ring, application force and the antagonistic force of nationality between the two, it is that center of turn is the rotation (13) of rotational plane with the steel ring radial section that clean-up device are produced with axle (10), make hairbrush 2(2) contact steel ring, until two hairbrush bristle action till the power equilibrium of steel ring.Certainly; when making hairbrush 2 big owing to steel ring radius deviation than hairbrush 1 distortion; clean-up device also can backward rotation; when particularly adopting unidirectional elastic limit device; this device might be out of shape owing to the backward rotation of clean-up device, thereby reaches the purpose of effective cleaning steel ring surface dirt and protection steel ring.

Specific embodiment of the utility model is as follows: see accompanying drawing 3,4.Accompanying drawing 4 is left views of accompanying drawing 3.Dust exhaustor comprises clean-up device (9) and anchor fitting (11), and be fixed on by anchor fitting between the jig arm (15) and brake rubber box (16) of brake, clean-up device comprise two hairbrush (1,2), relative steel ring (8) hand of rotation (17), clean-up device place brake brake rubber block (18) front, gap between two hairbrush and the steel ring is less than the gap between brake rubber block and the steel ring, and the profile of hairbrush leading edge shape and steel ring radial section matches.Flexibly connect with axle (10) between clean-up device and the anchor fitting.When dust exhaustor was not worked, with the rotation that limiting stopper (14) stops clean-up device to produce because of centre offset, limiting stopper was on anchor fitting (11).In addition, (referring to accompanying drawing 5) also can make clean-up device (9) keep a certain position with spring (19), and spring one end is fixed on the clean-up device, and an end contacts with the projection (20) of anchor fitting (11).Limit body also can adopt coil spring, and (referring to accompanying drawing 6,7, Fig. 7 is that the A of Fig. 6 is to enlarged partial view) coil spring (21) one ends contact with clean-up device (9), and an end contacts with projection (20) on the anchor fitting (11).More than two examples can be used as other specific embodiment.

Technique effect of the present utility model: as previously mentioned, owing to flexibly connect with axle between clean-up device and the anchor fitting, behind the hairbrush 1 contact steel ring, hairbrush 2 can be because the rotation of clean-up device then contact steel ring, thereby has solved the problem that hairbrush 2 does not contact steel ring; Owing to flexibly connect with axle between clean-up device and the anchor fitting, all contact at two hairbrush under the situation of steel ring, when two hairbrush are unbalanced to the application force of steel ring, because application force and antagonistic force, clean-up device can rotate, till the application force equilibrium of two hairbrush to steel ring.Thereby reach the purpose of two hairbrush to the cleaning dusting equilibrium of steel ring.Owing to adopted elastic limit device, when hairbrush 2 is out of shape big than hairbrush 1, clean-up device produce backward rotation, and make clean-up device or projection contact and oppress limit body---spring, when making it produce distortion, clean-up device can be rotated further, and till all forcees balance, reach the purpose that two hairbrush act on the power relative equilibrium of steel ring with this.In sum, the utility model can be obtained following two technique effects: (one) hairbrush bristle fully contacts steel ring surface each point.(2) the hairbrush bristle action is in the power relative equilibrium on steel ring surface.Thereby reach the purpose of effective cleaning steel ring surface dirt and protection steel ring.

Claims (2)

1, movable steel ring dust exhaustor structure-improved, dust exhaustor comprises clean-up device and anchor fitting, and be fixed on brake near on the position of steel ring by anchor fitting, relative steel ring hand of rotation, clean-up device place brake brake rubber block front, gap between clean-up device and the steel ring is less than the gap between brake rubber block and the steel ring, and the leading edge shape of clean-up device and the profile of steel ring radial section match, and of the present utility model being characterised in that between clean-up device and the anchor fitting flexibly connects with axle.

2, dust exhaustor according to claim 1, the dust exhaustor that is characterised in that of the present utility model also comprises rotating limit device, this device comprises following two kinds of forms: (one) unidirectional elastic limit device; (2) unidirectional rigidity inhibiting device.

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