CN203793541U - Disc brake for bicycle - Google Patents
Disc brake for bicycle Download PDFInfo
- Publication number
- CN203793541U CN203793541U CN201420221258.XU CN201420221258U CN203793541U CN 203793541 U CN203793541 U CN 203793541U CN 201420221258 U CN201420221258 U CN 201420221258U CN 203793541 U CN203793541 U CN 203793541U
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- brake disc
- axle sleeve
- attaching parts
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- tubular body
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- 230000005855 radiation Effects 0.000 claims description 63
- 238000009434 installation Methods 0.000 claims description 43
- 230000013011 mating Effects 0.000 claims description 16
- 230000015572 biosynthetic process Effects 0.000 claims description 9
- 230000000694 effects Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- 230000009977 dual effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000001149 thermolysis Methods 0.000 description 1
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Abstract
The utility model provides a disc brake for a bicycle. The disc brake for the bicycle comprises a brake disc, a hub shaft, a hub shell, a brake disc connector, a mounting bushing and a locking part, wherein the brake disc connector is provided with an annular boss and a tubular body with an internal thread, the mounting bushing is provided with a bushing body and a disc connection portion, and the locking part is provided with a flange and a tubular portion with an external thread. The section of the outer surface of the tubular body is polygonal, the surface of the annular boss is provided with projections, the inner surface of a center hole of the bushing body can be matched with the outer surface of the tubular body, and the end face, facing the brake disc connector, of the bushing body is provided with concaves matched with the projections. When the external thread is matched with the internal thread, the inner surface of the mounting bushing is matched with the outer surface of the tubular body, and the projections are matched with the concaves to enable the locking part and the brake disc connector to retain the mounting bushing.
Description
Technical field
the utility model relates to bicycle brake field, relates more specifically to a kind of bicycle disk brake.
Background technology
along with reaching its maturity and the requirements at the higher level of people to Green Travel of bike tech development, bicycle is more and more for daily life, thereby, improving bicycle aspect of performance, researcher has dropped into more energy, particularly about cycle brake.The bicycle brake system of current use mainly contains two types of disc type and drum-types, plate disc brake because it is swift in response, stability and thermal diffusivity is good etc. that advantage is widely used, existing plate disc brake generally comprises the clamp that are operably connected on brake-applying handle and is fixedly attached to the disc type brake dish on the hub of wheel, wherein the connection mode of disc type brake dish and wheel hub has several, for example, an and locking ring in mating connection by the corresponding spline on an axle sleeve and hub maintains brake disc.But this kind of connection mode stability, thermal diffusivity are also good not, and install complicatedly, thereby in this field, need a kind of improved bicycle disk brake badly, to overcome the problems referred to above of the prior art.
Summary of the invention
in order to overcome the problems referred to above of the prior art, the utility model provides a kind of bicycle disk brake, and this brake hub structure is simpler, and assembling effect is more stable and thermal diffusivity is better, long service life.
the technical solution adopted in the utility model is: a kind of bicycle disk brake, comprising:
brake disc;
hub axle, it has the first relative axle head and the second axle head, and the axial line of hub axle extends between the first axle head and the second axle head;
hub shell, it comprises the first relative hub shell end and the second hub shell end, hub shell is pivotally connected on hub axle;
brake disc attaching parts, it is arranged on the first hub shell end, brake disc attaching parts has tubular body and extends radially outward by the bottom periphery of tubular body the annular boss forming, and tubular body has the free end away from annular boss, and the inside face of tubular body has negative thread;
axle sleeve is installed, and it can be connected with brake disc, and installation shaft cover has and offers the axle sleeve body of centre hole and extended radially outward the dish connecting portion forming by the periphery of axle sleeve body; And
locking piece, it has siphonata and extends radially outward by the bottom periphery of siphonata the flange forming, and the outside face of siphonata has the outside thread that can match with the negative thread of brake disc attaching parts;
the cross section outer rim of the outside face of the tubular body of brake disc attaching parts is polygon, annular boss offers multiple projections along the circumferential direction spaced apart on the end face of the free end towards tubular body, the cross section outer rim that the inside face of the centre hole of the axle sleeve body of axle sleeve is installed is also polygon, this inside face can be matched with the outside face of the tubular body of brake disc attaching parts, axle sleeve body is provided with along the circumferential direction multiple pits spaced apart that can match with multiple projections on the end face towards brake disc attaching parts, in the time that the negative thread of the outside thread of siphonata of locking piece and the inside face of the tubular body of brake disc attaching parts is in mating connection, the inside face that the centre hole of axle sleeve is installed matches with the outside face of the tubular body of brake disc attaching parts, and multiple projections of brake disc attaching parts match with multiple pits that axle sleeve is installed, locking piece and brake disc attaching parts are maintained installation axle sleeve.
preferably, separate alternate with tubular body of projection, and offering at least one the first heat radiation through hole extending vertically corresponding to the interval between projection and tubular body on annular boss, on axle sleeve body, offering at least one second heat radiation through hole of vertically extending corresponding with at least one the first heat radiation through hole corresponding to the interval between pit and centre hole, and in the time that locking piece and brake disc attaching parts maintain installation axle sleeve, at least one second heat radiation through hole formation breather port that matches that at least one first heat radiation through hole on brake disc attaching parts can put with installation shaft.
preferably, on the outward flange of the flange of locking piece, be arranged at intervals with multiple depressions.Herein, set multiple depressions mainly play and in the time that bicycle normally travels, form wind and cut effect, the breather port combined action that first, second heat radiation through hole on axle sleeve and brake disc attaching parts forms is installed, can effectively reduces driving noise, and improve radiating effect and prevent that breather port from stopping up.In addition, when bicycle running, being recessed in while moving on the annular lip outward flange of locking piece forms air-flow, and air-flow enters with the gap at negative thread 311 places of matching by outside thread 511, and thermal diffusivity is good.
more preferably, the flange of locking piece is provided with multiple grooves on the outside face of siphonata dorsad.Herein, arranging of groove is mainly to play the relatively effect of operation.When mounted, the outside thread on locking piece will match with the negative thread on brake disc attaching parts brake hub, needs M/C, can be easier by making spanner and coordinating of groove to install, and firmly more stable, the installation of whole brake hub is more coordinated.
preferably, on axle sleeve body, between its outward flange and pit, offer axially extended at least one the 3rd heat radiation through hole.
more preferably, the first heat radiation through hole arranges near the medial surface place towards tubular body of projection,, the position of the first heat radiation through hole is corresponding with protruding position, and the second heat radiation through hole is corresponding with the position of pit, when projection is with pit time in mating connection, the first heat radiation through hole and second through hole formation breather port that is connected that dispels the heat.Still more preferably, the position of the 3rd heat radiation through hole is corresponding with the position of the second heat radiation through hole, but lays respectively at the both sides that pit is relative.
further, at least one first heat radiation through hole is multiple, and multiple the first heat radiation through holes distribute on same circumference and equally spaced, and the center of circle of circumference is on the line of centers of described tubular body.
further, at least one second heat radiation through hole is multiple, and multiple the second heat radiation through holes distribute on same circumference and equally spaced, and the center of circle of circumference is on the line of centers of centre hole.
the first heat radiation through hole is corresponding with the position of the second heat radiation through hole.
further, the dish connecting portion of installation axle sleeve comprises at least one first contiguous block radially extending.
further, brake disc has the installation portion for connection axle sleeve, and installation portion comprises at least one second contiguous block that can be connected with at least one the first contiguous block.
axle sleeve is installed and is fixedly connected by the first contiguous block and being connected of the second contiguous block with brake disc, like this, just can drive the rotation of installation axle sleeve or stop by brake disc, thereby reach the object of brake.
preferably, comprise the mounting groove that axially runs through brake disc in the installation portion of brake disc, mounting groove can allow the siphonata of locking piece to pass.The siphonata of locking piece is through mounting groove, and the outside thread on it matches with the negative thread on brake disc attaching parts.
further, the first hub shell end is connected with the first axle head rotationally by clutch shaft bearing assembly, and the second hub shell end is connected with the second axle head rotationally by the second bearing assembly.Hub shell is connected Yu Grains axle rotationally, and Bing You Grains axle supports.
compared with prior art, the utlity model has following advantage: plate type brake hub of the present utility model has utilized the inside face of polygonal cross-section of axle sleeve body centre hole and the outside face of the polygonal cross-section of brake disc attaching parts to be connected, and further make the pit on axle sleeve body end face match with the projection on brake disc attaching parts, by the dual power transmission that is connected to realize brake disc and brake disc attaching parts and hub shell, like this, integral structure is more stable, and performance is more excellent.In addition, the second through hole formation breather port that matches that dispels the heat that on brake disc attaching parts of the present utility model first heat radiation through hole puts with installation shaft, can play good thermolysis, can avoid the connection rivet of conventional art bottom bracket axle and floral disc to be out of shape the structural unstable shortcoming of bringing because expanding with heat and contract with cold, and can further prevent the leakage that hub oil causes because crossing het expansion, make brake hub period of service more permanent, wear and tear less, structure and performance are all more excellent.
Brief description of the drawings
accompanying drawing 1 is according to the schematic top plan view of the brake disc of plate type brake hub of the present utility model.
accompanying drawing 2 is according to the schematic perspective view of the brake disc of plate type brake hub of the present utility model.
accompanying drawing 3 is according to the front elevational schematic of the installation axle sleeve of plate type brake hub of the present utility model.
accompanying drawing 4 is according to the schematic rear view of the installation axle sleeve of plate type brake hub of the present utility model.
accompanying drawing 5 is according to the perspective diagram of the installation axle sleeve of plate type brake hub of the present utility model.
accompanying drawing 6 is according to another perspective diagram of the installation axle sleeve of plate type brake hub of the present utility model.
accompanying drawing 7 is that wherein brake disc attaching parts is arranged on the first end of hub shell according to the perspective diagram of the hub shell of plate type brake hub of the present utility model.
accompanying drawing 8 is the hub shell front elevational schematic according to plate type brake hub of the present utility model, and wherein brake disc attaching parts is arranged on the first end of hub shell.
accompanying drawing 9 is that wherein brake disc attaching parts is arranged on the first end of hub shell according to the schematic top plan view of the hub shell of plate type brake hub of the present utility model.
accompanying drawing 10 is according to the schematic perspective view of the locking piece of plate type brake hub of the present utility model.
accompanying drawing 11 is according to the elevational schematic view of the locking piece of plate type brake hub of the present utility model.
accompanying drawing 12 is according to the front elevational schematic of the locking piece of plate type brake hub of the present utility model.
accompanying drawing 13 is according to the scheme of installation of the utility model plate type brake hub.
accompanying drawing 14 is another scheme of installations according to plate type brake hub of the present utility model.
in figure: 1, brake disc; 11, installation portion; 111, the second contiguous block; 112, mounting groove; 2, hub shell; 21, the first hub shell end; 22, the second hub shell end; 3, brake disc attaching parts; 31, tubular body; 311, negative thread; 32, annular boss; 321, projection; 322, the first heat radiation through hole; 4, axle sleeve is installed; 41, axle sleeve body; 411, centre hole; 412, pit; 413, the second heat radiation through hole; 414, the 3rd heat radiation through hole; 42, dish connecting portion; 421, the first contiguous block; ; 5, locking piece; 51, siphonata; 511, outside thread; 52, flange; 521, depression; 522, groove.
Detailed description of the invention
below in conjunction with accompanying drawing, the utility model is described in further detail, so that those skilled in the art can understand the utility model better, thereby protection domain of the present utility model is made to more explicit defining.
consult accompanying drawing, comprise according to plate disc brake of the present utility model: brake disc 1; Hub axle, it has the first relative axle head and the second axle head, and the axial line of hub axle extends between the first axle head and the second axle head; Hub shell 2, it comprises the first relative hub shell end 21 and the second hub shell end 22, hub shell 2 is pivotally connected on hub axle; Brake disc attaching parts 3, it is arranged on the first hub shell end 21, brake disc attaching parts 3 has tubular body 31 and is extended radially outward the annular boss 32 forming by the bottom periphery of tubular body 31, tubular body 31 has the free end away from annular boss 32, and the inside face of tubular body 31 has negative thread 311; Axle sleeve 4 is installed, and it can be connected with brake disc 1, axle sleeve 4 is installed and is had and offer the axle sleeve body 41 of centre hole 411 and extended radially outward the dish connecting portion 42 forming by the periphery of axle sleeve body 41; And locking piece 5, it has siphonata 51 and is extended radially outward the flange 52 forming by the bottom periphery of siphonata 51, and the outside face of siphonata 51 has the outside thread 511 that can match with the negative thread of brake disc attaching parts 3 311; wherein brake disc attaching parts 3 the cross section outer rim of outside face of tubular body 31 be polygon, annular boss 32 compartment of terrain on the surface of the free end towards tubular body 31 is provided with multiple projections 321 of extending vertically, 321 separate alternate with tubular body 31 of projection, and offering at least one the first heat radiation through hole 322 extending vertically corresponding to the interval between projection 321 and tubular body 31 on annular boss 32, the cross section that the inside face of the centre hole 411 of the axle sleeve body 41 of axle sleeve 4 is installed is also polygon, this inside face can be matched with the outside face of the tubular body of brake disc attaching parts 3 31, axle sleeve body 41 (on end face of brake disc attaching parts 3) on a side end face of the line of centers perpendicular to centre hole 411 is provided with multiple pits 412 that extend vertically that can match with multiple protruding 321, on axle sleeve body 41, offering axially extended at least one second heat radiation through hole 413 corresponding to the interval between pit 412 and centre hole 411, when the outside thread 511 of the siphonata 51 of locking piece 5 and the negative thread 311 of the inside face of the tubular body 31 of brake disc attaching parts 3 are time in mating connection, the inside face of centre hole 411 of axle sleeve 4 and the outside face of the tubular body 31 of brake disc attaching parts 3 are installed to match, and multiple protruding 321 of brake disc attaching parts 3 matches with multiple pits 412 that axle sleeve 4 is installed, locking piece 5 and brake disc attaching parts 3 are maintained installation axle sleeve 4, and at least one the first heat radiation through hole 322 on brake disc attaching parts 3 matches to be communicated with at least one the second heat radiation through hole 413 on installation axle sleeve 4 and forms breather port.
particularly, first consult Fig. 1 to Fig. 2, in this two width figure, shown according to brake disc 1 of the present utility model.Fig. 1 to Fig. 2 is respectively birds-eye view and the block diagram of the brake disc 1 of this embodiment, brake disc 1 is disc type, there is the installation portion 11 for connection axle sleeve 4, installation portion 11 comprises spaced 6 the second contiguous blocks 111, for being connected with the first contiguous block 421 of installing on axle sleeve 4, further brake disc 1 and installation axle sleeve 4 are fixedly connected.In the installation portion 11 of brake disc 1, also comprise the mounting groove 112 that axially runs through brake disc 1, mounting groove 112 can allow the siphonata 51 of locking piece 5 to pass.In actual applications, the structure of brake disc 1 is not limited to aforesaid way, and the conventional brake disc 1 being limited in technology all can be realized the purpose of this utility model.Can utilize any connection mode of the prior art or those skilled in the art to transform or convert formed many connection modes according to prior art, not do concrete more detailed description in detail at this.
consult Fig. 3 to Fig. 6, these a few width figure have shown according to installation axle sleeve 4 of the present utility model, as can be seen from the figure, it is also disc type that axle sleeve 4 is installed, and comprises and offers the axle sleeve body 41 of centre hole 411 and extended radially outward the dish connecting portion 42 forming by the periphery of axle sleeve body.Dish connecting portion 42 comprises spaced multiple the first contiguous blocks 421 that radially extend, more specifically, the first contiguous block 421 is altogether six, six the first contiguous blocks 421 arrange along the even compartment of terrain of periphery of axle sleeve body 41, and be also provided with mounting hole on the first contiguous block 421, the installation that can match with the mounting hole on the second contiguous block 111 on brake disc 1, with further by brake disc 1 with axle sleeve 4 be installed be connected.Like this, the first contiguous block 421 and the second contiguous block 111 can be fixedly connected by screw etc., and the centre hole 411 of axle sleeve body 4 is corresponding with mounting groove 112, the siphonata 51 of locking piece 5 is through mounting groove 112 in mating connection with the negative thread 311 on brake disc attaching parts 3 by the outside thread 511 on it, the tubular body 31 that brake disc connects on 3 is inserted in the centre hole 411 that axle sleeve 4 is installed, make the inside face of the outside face of tubular body 31 and the centre hole 411 of axle sleeve body 41 in mating connection, simultaneously, multiple protruding 321 in mating connection on the annular boss 32 of multiple pits on axle sleeve body 41 412 and brake disc attaching parts 3.Like this, locking piece 5 just will be installed axle sleeve 4 and be maintained with the brake disc 1 that installation axle sleeve 4 is fixedly connected with brake disc attaching parts 3.
in a preferred embodiment, the first heat radiation through hole 322 arranges near the medial surface place towards tubular body 31 of projection 321,, the position of the first heat radiation through hole is corresponding with the position of projection 321, and the position of each the second heat radiation through hole 413 is corresponding with the position of pit 412, when projection 321 is with pit 412 time in mating connection, the first heat radiation through hole 322 and second through hole 413 formation breather port that is connected that dispels the heat.Still more preferably, the position of the 3rd heat radiation through hole is corresponding with the position of the second heat radiation through hole, but lays respectively at the relative both sides of pit.
from Fig. 3 to Fig. 6, it can also be seen that, the second heat radiation through hole 413 on the axle sleeve body 1 of installation axle sleeve 4 and the position of the 3rd heat radiation through hole 414 are corresponding, and be distributed in respectively the inside and outside both sides of pit 412, and the position of the each first or second heat radiation through hole is corresponding with the position of pit 412 respectively.Fig. 3 is the front elevational schematic that axle sleeve 4 is installed, and can find out the position of pit 412 and second, third heat radiation through hole from this view.Fig. 4 is the schematic rear view that axle sleeve 4 is installed, and has wherein shown second, third louvre 413,414.Fig. 5, Fig. 6 are respectively two perspective diagrams that axle sleeve 4 is installed.
consult Fig. 7 to Fig. 9, this three accompanying drawing is respectively according to schematic perspective view, front elevational schematic and the schematic top plan view of hub shell 2 of the present utility model and upper set dish attaching parts 3 again.Preferably, brake disc attaching parts 3 is arranged on the first hub shell end 21 of hub shell 2 and is integrally formed with hub shell 2.The first hub shell end 21 of hub shell 2 is connected with the first axle head rotationally by clutch shaft bearing assembly, and the second hub shell end 22 is connected with the second axle head rotationally by the second bearing assembly.Particularly, hub shell 2 comprises the first hub shell end 21 and the second hub shell end 22 and between the first hub shell end 21 and the second hub shell end 22, has the shell portion of internal channel, and hub axle (not shown) is rotationally connected ground support hub shell 2 through this internal channel and with hub shell 2.The central axis of the axial line of hub axle and hub shell 2 coincides, and hub shell 2 circumferentially rotates around hub axle.In the utility model, the connection mode of hub axle and hub shell 2 can adopt conventional connection mode of the prior art, not as utility model emphasis of the present utility model, thereby does not do too much description.
brake disc attaching parts 3 is positioned at the first hub shell end 21 places, and the line of centers of the line of centers of the opening of its tubular body 31 and hub shell 2 coincides.In a preferred embodiment, the cross section outer rim of the outside face of tubular body 31 is octagon, annular boss 32 towards being arranged at intervals with projection 321 on the surface of axle sleeve body 4, projection 321 has the medial surface of close tubular body 31, annular boss 32 is offering axially extended multiple the first heat radiation through hole 322 near the medial surface place of projection 321, multiple the first heat radiation through holes 322 are distributed on same circumference, the center of circle of this circumference is on the central axis of hub shell 2, and axle sleeve body 41 on the end face towards brake disc attaching parts 3, be provided with can with projection 321 axially extended pits 412 in mating connection, and the cross section outer rim of the inside face of axle sleeve body 41 is also octagon, make this inside face can be in mating connection with the outside face of tubular body 31.In addition, pit 412 have respectively close, away from the relative inside and outside both sides of centre hole 411, axle sleeve body 41 is offering axially extended multiple the second heat radiation through hole 413 near the inner side place of pit 412, the second heat radiation through hole 413 bit positions are corresponding with the position of pit 412, and compartment of terrain is distributed on same circumference, and the center of circle of this circumference is on the line of centers of centre hole 411.In the time that installation axle sleeve 4 is connected with brake disc attaching parts 3, the tubular body 31 of brake disc attaching parts 3 is inserted in the centre hole 411 of axle sleeve body 41 and is in mating connection, and multiple pits 412 on the end face of multiple protruding 321 on annular boss 32 and axle sleeve body 41 are in mating connection,, both have realized dual being connected, connection is more firm like this, makes brake performance more stable.Meanwhile, multiple the first heat radiation through holes 322 on brake disc attaching parts 3 with the through holes 413 formation breather port that matches respectively that dispels the heat of multiple second on axle sleeve 4 is installed., the first heat radiation through hole 322 breather port that formation can air feed be passed through that is connected with the second heat radiation through hole 413.In the normal driving process of bicycle, because persistent movement can produce heat between each parts of brake hub, parts and connection rivet etc. thereof are expanded with heat and contract with cold, easily damage, when serious, even cause whole brake hub normally not use, the formation of breather port distributes heat rapidly, makes brake hub longer service life, and performance is more excellent.
in a concrete preferred embodiment, on the outward flange of the flange 52 of locking piece 5, be arranged at intervals with multiple depressions 521.Depression 521 can form distinguished and admirable in the process of bicycle running, distinguished and admirable can by the screw thread on locking piece further enter install in axle sleeve 4 and brake disc attaching parts 3 and drum shell 2 in, further improved radiating effect.More specifically in preferred embodiment, on the outside face of the siphonata dorsad 51 of the flange 52 of locking piece 5, be provided with multiple grooves 522 one.Groove 522 is herein mainly for convenient operation locking piece 5 when brake hub is installed, such as, coordinate to come operational lock part with groove 522 with spanner, so firmly more convenient, install also more firm.Groove 522 can be set to multiple, and multiple grooves 522 can equally spaced be arranged on same circumference, and the center of circle of this circumference is on the line of centers of the opening of siphonata 51.Also can otherwise arrange according to actual needs, be mainly the object that plays convenient operation, and the structure of locking piece 5 can be referring to Figure 10 to Figure 12.
consult Figure 13 to Figure 14, this two width figure is the scheme of installation according to plate type brake hub of the present utility model.When mounted, can first be connected with brake disc 1 axle sleeve 4 is installed, for example, the first contiguous block 421 and the second contiguous block 11 on brake disc 1 are fixedly connected respectively, can be screwed.The tubular body 31 of brake disc attaching parts 3 is inserted in the axle sleeve body 41 that axle sleeve 4 is installed, both are in mating connection, simultaneously, pit 412 on the end face of multiple protruding 321 on the annular boss 32 of brake disc attaching parts 3 and axle sleeve body 41 is in mating connection, like this, brake disc attaching parts 3 has just been realized dual connection with axle sleeve body 41.The siphonata 51 of locking piece 5 inserts in the centre hole of tubular body 31 of brake disc attaching parts 3 through the mounting groove 112 on brake disc 1, and outside thread 511 on siphonata 51 outside faces is in mating connection with the negative thread 311 on tubular body 31 inside faces.Like this, locking piece 5 just will be installed axle sleeve 4 and be maintained with the brake disc 3 that installation axle sleeve 4 is fixedly connected with brake disc attaching parts 3.Meanwhile, the heat radiation of first on brake disc attaching parts 3 through hole 322 matches respectively and forms the breather port running through with the second heat radiation through hole 413 on installation axle sleeve 4, plays the effect of heat radiation.
in a concrete preferred embodiment, axle sleeve body 41 locates to offer axially extended at least one the 3rd heat radiation through hole 414 preferably between its outer rim and pit 412, the position of the 3rd heat radiation through hole 414 is corresponding with the position of the second heat radiation through hole 413, but lay respectively at the inside and outside both sides of pit 412, and each second or the 3rd heat radiation through hole position all corresponding with the position of pit 412.
the structure of hub axle illustrates in the utility model, and it can be the structure of bicycle Chang Yong Grains axle, with the connection mode of miscellaneous part and hub shell 2 can be also the usual manner in this area.
in the time that bicycle is normally worked, brake disc 1 gyrates together with wheel rim set on it, and drives brake disc attaching parts 3 and hub shell 2 to rotate by axle sleeve 4 is installed.Need to brake time, brake-applying handle by cycle brake applies external force, and drive braking clamp contact with brake disc 1 and apply resistance to brake disc 1 by trailing cable, brake disc 1 is slowly stopped operating, brake disc 1 further makes to install axle sleeve 4, brake disc attaching parts 3 and hub shell 2 again and stops operating, thereby make to stop operating with the first hub shell end 21 of hub shell 2, the wheel rim that the second hub shell end 22 is connected by spoke, finally realized the brake of bicycle.First, second heat radiation through hole 322,413 breather port corresponding and that formation runs through has improved radiating effect, makes brake hub of the present utility model can not be heated and damage because of long-term use friction, and the 3rd heat radiation through hole 414 has further strengthened radiating effect.The setting of the depression on locking piece 5 has further improved radiating effect, and can effectively eliminate the noise of the each parts of brake hub in bicycle running process.Thereby bicycle disk brake of the present utility model not only structure is more stable, good heat dissipation effect, and noise is little, stable performance, can avoid the oil leakage phenomenon of hub shell and hub axle, has very good application prospect.
in the utility model; can adopt the conventional components of this area such as the parts of hub axle, brake disc 1 etc.; the set-up mode of the brake clamp contacting movably with brake disc also can adopt the conventional connection mode of this area; do not do too much description because not relating to key protection point of the present utility model, those skilled in the art can easily understand according to prior art.
above specific embodiment of the present utility model is illustrated; but protection content of the present utility model is not only limited to above embodiment; under of the present utility model, in technical field, the common knowledge of a GPRS just can be carried out diversified change within the scope of its technology main idea.
Claims (10)
1. a bicycle disk brake, comprising:
Brake disc (1);
Hub axle, it has the first relative axle head and the second axle head, and the axial line of described hub axle extends between described the first axle head and described the second axle head;
Hub shell (2), it comprises the first relative hub shell end (21) and the second hub shell end (22), described hub shell (2) is pivotally connected on described hub axle;
Brake disc attaching parts (3), it is arranged on described the first hub shell end (21), described brake disc attaching parts (3) has tubular body (31) and is extended radially outward the annular boss (32) forming by the bottom periphery of described tubular body (31), described tubular body (31) has the free end away from described annular boss (32), and the inside face of described tubular body (31) has negative thread (311);
Axle sleeve (4) is installed, it can be connected with described brake disc (1), and described installation axle sleeve (4) has and offers the axle sleeve body (41) of centre hole (411) and extended radially outward the dish connecting portion (42) forming by the periphery of described axle sleeve body (41); And
Locking piece (5), it has siphonata (51) and is extended radially outward the flange (52) forming by the bottom periphery of described siphonata (51), and the outside face of described siphonata (51) has the outside thread (511) that can match with the negative thread (311) of described brake disc attaching parts (3);
It is characterized in that: the cross section outer rim of the outside face of the tubular body (31) of described brake disc attaching parts (3) is polygon, described annular boss (32) offers along the circumferential direction multiple projections (321) spaced apart on the end face of the free end towards described tubular body (31), the cross section outer rim of the inside face of the centre hole (411) of the axle sleeve body (41) of described installation axle sleeve (4) is also polygon, this inside face can be matched with the outside face of the tubular body (31) of described brake disc attaching parts (3), described axle sleeve body (41) is provided with along the circumferential direction multiple pits (412) spaced apart that can match with multiple projections (321) on the end face towards brake disc attaching parts (3), in the time that the negative thread (311) of the outside thread (511) of siphonata (51) of described locking piece (5) and the inside face of the tubular body (31) of described brake disc attaching parts (3) is in mating connection, the inside face of the centre hole (411) of described installation axle sleeve (4) matches with the outside face of the tubular body (31) of brake disc attaching parts (3), and multiple projections (321) of described brake disc attaching parts (3) match with multiple pits (412) of described installation axle sleeve (4), described locking piece (5) and described brake disc attaching parts (3) are maintained described installation axle sleeve (4).
2. bicycle disk brake according to claim 1, it is characterized in that: described projection (321) and alternate separating of described tubular body (31), and annular boss (32) is upper is offering at least one the first heat radiation through hole (322) extending vertically corresponding to the interval between described projection (321) and tubular body (31), described axle sleeve body (41) is upper is offering at least one second heat radiation through hole (413) of vertically extending corresponding with described at least one first heat radiation through hole (322) corresponding to the interval between pit (412) and centre hole (411), and in the time that described locking piece (5) and described brake disc attaching parts (3) maintain described installation axle sleeve (4), at least one first heat radiation through hole (322) on described brake disc attaching parts (3) can with at least one second heat radiation through hole (413) the formation breather port that match on described installation axle sleeve (4).
3. bicycle disk brake according to claim 1, is characterized in that: on the outward flange of the flange (52) of described locking piece (5), be arranged at intervals with multiple depressions (521).
4. bicycle disk brake according to claim 1, is characterized in that: the flange (52) of described locking piece (5) is provided with multiple grooves (522) on the outside face of described siphonata (51) dorsad.
5. bicycle disk brake according to claim 1, is characterized in that: upper at least one the 3rd heat radiation through hole (414) extending vertically that offers between its outward flange and described pit (412) of described axle sleeve body (41).
6. bicycle disk brake according to claim 2, it is characterized in that: described at least one first heat radiation through hole (322) is for multiple, multiple the first heat radiation through holes (322) distribute on same circumference and equally spaced, and the center of circle of described circumference is on the line of centers of described tubular body (31).
7. bicycle disk brake according to claim 6, it is characterized in that: described at least one second heat radiation through hole (413) is for multiple, multiple the second heat radiation through holes (413) distribute on same circumference and equally spaced, and the center of circle of described circumference is on the line of centers of described centre hole (411).
8. bicycle disk brake according to claim 1, is characterized in that: the dish connecting portion (42) of described installation axle sleeve (4) comprises at least one first contiguous block (421) radially extending.
9. bicycle disk brake according to claim 8, it is characterized in that: described brake disc (1) has the installation portion (11) for connection axle sleeve (4), described installation portion (11) comprises at least one second contiguous block (111) that can be connected with described at least one first contiguous block (421).
10. bicycle disk brake according to claim 9, it is characterized in that: in the installation portion (11) of described brake disc (1), comprise that the mounting groove (112) that axially runs through brake disc (1), described mounting groove (112) can allow the siphonata (51) of locking piece (5) to pass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420221258.XU CN203793541U (en) | 2014-05-04 | 2014-05-04 | Disc brake for bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420221258.XU CN203793541U (en) | 2014-05-04 | 2014-05-04 | Disc brake for bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203793541U true CN203793541U (en) | 2014-08-27 |
Family
ID=51375781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420221258.XU Expired - Lifetime CN203793541U (en) | 2014-05-04 | 2014-05-04 | Disc brake for bicycle |
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| Country | Link |
|---|---|
| CN (1) | CN203793541U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953670A (en) * | 2014-05-04 | 2014-07-30 | 宏展五金塑胶制品（苏州）有限公司 | Disc brake for bicycle |
| CN107575511A (en) * | 2016-07-05 | 2018-01-12 | 坎培诺洛有限公司 | Brake disc for bicycle |
-
2014
- 2014-05-04 CN CN201420221258.XU patent/CN203793541U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953670A (en) * | 2014-05-04 | 2014-07-30 | 宏展五金塑胶制品（苏州）有限公司 | Disc brake for bicycle |
| CN107575511A (en) * | 2016-07-05 | 2018-01-12 | 坎培诺洛有限公司 | Brake disc for bicycle |
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| C14 | Grant of patent or utility model | ||
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