CN203743263U - Speed limiting device of bicycle - Google Patents
Speed limiting device of bicycle Download PDFInfo
- Publication number
- CN203743263U CN203743263U CN201320890524.3U CN201320890524U CN203743263U CN 203743263 U CN203743263 U CN 203743263U CN 201320890524 U CN201320890524 U CN 201320890524U CN 203743263 U CN203743263 U CN 203743263U
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- Prior art keywords
- thrust disc
- supporting rod
- drive plate
- disc
- limiting device
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Abstract
The utility model discloses a speed limiting device of a bicycle. The speed limiting device comprises a hollow shell. A pair of discs is coaxially arranged in the shell, one of the discs is a transmission disc, and a plurality of grooves are formed in the transmission disc in a direction away from the center of the transmission disc; the other disc is a thrust disc, and an opening of the thrust disc is opposite to an opening of the transmission disc; steel balls are arranged between the thrust disc and the transmission disc and are positioned in the grooves of the transmission disc; a transmission rod is fixed to the bottom surface of the transmission disc and penetrates the shell to be connected with a gear transmission pair; a supporting rod is arranged on the thrust disc, one end of the supporting rod is movably connected with the bottom surface of the thrust disc, and the other end of the supporting rod is fixed onto the shell; a spring sleeves the supporting rod, one end of the spring is fixed to the bottom of the thrust disc, and the other end of the spring is fixed onto a support capable of sliding along the supporting rod; a thrust rod which penetrates the shell is fixed to the bottom of the thrust disc. The speed limiting device has the advantages that the speed limiting device is applied to the bicycle for children, accordingly, the personal safety of the children can be protected, and unnecessary injury can be prevented.
Description
Technical field
The utility model relates to a kind of bicycle speed limiting device, is specifically related to a kind of child's bicycle speed limiting device based on rousing the brake technique of stopping.
Background technique
The range of age that child's bicycle is suitable for children is 4～8 years old, children's age is little, stature is short, poor to the control ability of bicycle, especially indoor be easy to by bike wait in small space or acclive place or do not have adult to keep an eye in the situation that injured.Child's bicycle product relates to the product of children's safety, and all child's bicycles are all equipped with braking device now, but child may hold not tight rim brake in the time that needs brake, the incessantly car that causes stopping, and car is bumped against comes to harm children.And the size of the speed of a motor vehicle is controlled by children oneself completely, can not automatically regulate according to the size of the speed of a motor vehicle, so more easily damage to children in the time that the speed of a motor vehicle is very fast.Existing bicycle speed limiting device is mainly used on electric bicycle, and be to utilize the power supply of electric motor car self to power to produce speed limit effect to speed limiting device, but ordinary bicycle does not have power supply unit, can not adopt above-mentioned speed limiting device to realize speed limit effect at all.Also have a kind of mechanical type automatic speed limit device, fill a cylinder on bicycle spoke, have bead in cylinder, this device has increased vehicle wheel rotation inertia to a great extent, and existing vehicle wheel construction does not meet the installation of such device yet.
Summary of the invention
The defect and the deficiency that exist for prior art, it is a kind of based on the stop child's bicycle automatic speed limit device of brake technique of drum that the utility model object is to provide, and improves the travel safety of child's bicycle, avoids children injured or reduce injured degree.
A kind of bicycle speed limiting device, comprises hollow shell, and in housing, coaxial inner conductor is provided with a pair of disk body, and one of them disk body is drive plate, and on drive plate, edge offers multiple grooves away from the direction at drive plate center; Another disk body is thrust disc, and the opening direction of thrust disc and drive plate is relative; Between thrust disc and drive plate, be provided with steel ball, steel ball is arranged in the groove of drive plate; Drive plate bottom surface is consolidated with drive link, and drive link is connected with a gear driving pair through housing; On thrust disc, be provided with supporting rod, one end of supporting rod is connected with thrust disc bottom surface is movable, and the supporting rod the other end is cemented on housing; Supporting rod is set with spring outward, and one end of spring is cemented in thrust disc bottom, and the other end of spring is cemented on a bearing that can slide along supporting rod; Be consolidated with in thrust disc bottom the track bar that penetrates housing.
Further, described gear driving pair comprises the driven wheel of differential that is cemented in drive link end, with be cemented in drive bevel gear on cycle wheel, that engage with driven wheel of differential, the shaft axis of drive bevel gear and driven wheel of differential is at same plane and mutually vertical.
Further, the number of teeth of described driven wheel of differential is less than the number of teeth of drive bevel gear.
Further, described drive plate and thrust disc include disc bottom surface, are consolidated with truncated cone side on bottom surface, and longitudinal cross section is the trapezium structure without bottom surface along bottom surface to make drive plate and thrust disc; Described groove is opened on the side of drive plate, and the elongation line of groove is crossing with the shaft axis of drive plate.
Further, on the bottom surface of described thrust disc, offer the through hole that diameter is greater than supporting rod, through hole below is consolidated with the convex shoulder that internal diameter is identical with through hole, and described supporting rod adopts T shape bar, supporting rod is successively through through hole and convex shoulder, and its lower end is cemented in inner walls.
Further, described drive link is connected with housing by bearing.
The utility model compared with prior art has following characteristics:
1, automatic speed limit device is to use on original drum is stopped the basis of braking device, does not need additional designs friction plate;
2, only have in the time that wheel reaches certain rotating speed, this device is just controlled the brake block that drum is stopped automatically, and the surface friction drag between increase brake block and brake drum is with restricted speed;
3, this device does not affect the braking effect of rim brake: drum is being killed in the control of friction plate, and this device and braking string are separate, are independent of each other;
4, the maximum constraints speed of a motor vehicle can regulate, and meets different usage requirements, convenient and practical;
5, this device is used for to child's bicycle, child protection personal safety, avoids unnecessary injury.
Brief description of the drawings
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is drive plate structural representation;
Fig. 3 is thrust disc structure schematic diagram;
Fig. 4 is the connection diagram that the utility model and drum are stopped;
Fig. 5 is the variation relation of spring force and the speed of a motor vehicle;
Fig. 6 is the variation relation of the speed of a motor vehicle and time;
In figure: 1-drive bevel gear, 2-driven wheel of differential, 3-drive link, 4-drive plate, 4-1-groove, 5-steel ball, 6-thrust disc, 6-1-through hole, 6-2-convex shoulder, 7-track bar, 8-bearing, 9-spring, 10-supporting rod, 11-housing, 12-braking string, 13-V-arrangement sheet, 14-bolt, the 15-bulging shell of stopping, 16-brake block, 17-brake drum, 18-connecting sheet, 19-bearing;
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Embodiment
Inventive concept of the present utility model is: based on drum brake principle, on stopping the basis of braking device, original drum designs a kind of bicycle automatic speed limit device, utilize and rotate centrifugal principle, in the time that wheel reaches certain rotating speed, automatically control the brake block 16 that drum is stopped, increase the surface friction drag between brake block 16 and brake drum 17, restricted speed.
Defer to technique scheme, as shown in Figure 1, Figure 2 and Figure 3, a kind of bicycle speed limiting device, comprises drive bevel gear 1, driven wheel of differential 2, drive link 3, drive plate 4, steel ball 5, thrust disc 6, track bar 7, bearing 8, spring 9, supporting rod 10, housing 11.
Housing 11 is positioned at the outside of drive plate 4, thrust disc 6, spring 9 and bearing 8 and is protected.Drive bevel gear 1 and driven wheel of differential 2 gear driving pair that partners, the number of teeth of driven wheel of differential 2 is less than the number of teeth of driving wheel bevel gear, drive bevel gear 1 is fixedly linked with cycle wheel, sense of rotation is consistent with vehicle wheel rotation direction, driven wheel of differential 2 axial directions are consistent with wheel direction of advance, be the shaft axis of drive bevel gear 1 and driven wheel of differential 2 in same plane, and mutually vertical, the plane of formation is parallel with horizontal plane.
Drive link 3 is cemented on the axis of driven wheel of differential, between driven wheel of differential 2 and drive plate 4, and is arranged on housing 11 by bearing 19, plays supporting role.Drive plate 4 comprises disc bottom surface, and truncated cone side, makes it along Wei Wu bottom surface, longitudinal cross-section, bottom surface trapezium structure; Pass through the cross section of the plane formation crossing with drive plate 4 of drive plate 4 shaft axiss; And groove 4-1 is just opened on side, groove 4-1 direction is away from the center of circle, bottom surface direction, and its elongation line will be crossing with bottom surface shaft axis.Groove 4-1, for steel ball 5 provides a track, can move steel ball 5 in groove 4-1.In the time that drive plate 4 rotates, steel ball 5, due to the effect of groove 4-1, rotates with drive plate 4 simultaneously, and because steel ball 5 is subject to the impact of centrifugal force, steel ball 5 can be along groove 4-1 to moving away from the direction in the center of circle, bottom surface.
Thrust disc 6 also comprises disc bottom surface and truncated cone side, and its opening direction is relative with the opening direction of drive plate 4, i.e. distance between thrust disc 6 and drive plate 4, along reducing gradually away from the direction of thrust disc 6 and drive plate 4 shaft axiss.
On the bottom surface of thrust disc 6, offer the through hole 6-1 that diameter is greater than supporting rod 10, through hole 6-1 below is consolidated with the convex shoulder 6-2 that internal diameter is identical with through hole 6-1, and convex shoulder 6-2 is hollow round column structure; Described supporting rod 10 adopts T shape bar, and supporting rod 10 through through hole 6-1 and convex shoulder 6-2, is connected with thrust disc 6 is movable successively, and its lower end is cemented on housing 11 inwalls; In the time that thrust disc 6 is stressed, its Compress Spring 9 moves along track bar 7, and T shape bar and convex shoulder 6-2 structure ensure that it moves point-blank, and supporting rod 10 and spring 9 play the effect of fixed support thrust disc 6 jointly.
The bearing 8 of supported spring 9 can slide along supporting rod 10, and it can be fixed arbitrary position on supporting rod 10, by regulating the position of bearing 8 can change the pretightening force of spring 9.
As shown in Figure 4, the structural representation braking for drum.Bulging stopping is mainly made up of braking string 12, V-arrangement sheet 13, bolt 14, the bulging shell 15 of stopping, brake block 16, brake drum 17.Wherein brake drum 17 is fixed on to rouse and stops on shell 15, and V-arrangement sheet 13 is hinged on drum by bolt 14 and stops on shell 15.Brake block 16 is rubber material, and its one end (diagram C end) is fixed on drum and stops on shell 15, and the other end (diagram D end) is connected with V-arrangement sheet 13.Braking string 12 is connected to one end that does not connect brake block 16 of V-arrangement sheet 13.When brake, braking string 12 drives V-arrangement sheet 13 centered by bolt 14, to rotate a small angle, pulls brake block 16 that itself and brake drum 17 are slowly fitted, and spacing reduces, and frictional force increases, and realizes braking effect.
This device is stopped while being connected with drum, by a connecting sheet 18, track bar 7 is connected with the bulging V-arrangement sheet 13 of stopping, and wherein connecting sheet 18 and track bar 7 are fixed, and hinged with V-arrangement sheet 13, its hinged place is also the position that V-arrangement sheet 13 connects braking string 12.
In motion, vehicle wheel rotation driven gear transmission moves bicycle, and under gear transmission side effect, the sense of rotation of wheel is changed to 90 °; Driven wheel of differential 2 is with nutating disk 4 and steel ball 5 to rotate through drive link 3, in the time that wheel exceedes certain rotating speed, the component of the centrifugal force producing when steel ball 5 rotates is greater than the pretightening force of spring 9, steel ball 5 is along the groove 4-1 on drive plate 4 sides to moving away from the direction of drive plate 4 shaft axiss, thereby impel thrust disc 6 Compress Springs 9 and drive track bar 7 to move, the active force of track bar 7 drives brake block 16 by connecting sheet 18, V-arrangement sheet 13, reduce it with the spacing of brake drum 17, surface friction drag is increased, bicycle acceleration reduces, or makes acceleration be decreased to 0.
As Fig. 5, the elastic force f of spring 9 is V in the speed of a motor vehicle
0in time, starts to increase, and the speed of a motor vehicle no longer increases after reaching Vmax.As Fig. 6, in the time that pedal power is constant, car acceleration slowly reduces, and the speed of a motor vehicle finally reaches a steady state value, i.e. maximum limit constant speed degree Vmax.The position of bearing 8 is adjustable, by regulating the position of bearing 8 to change the pretightening force of spring 9, realizes different top speeies and limits.
Claims (6)
1. a bicycle speed limiting device, it is characterized in that, comprise hollow shell (11), in housing (11), coaxial inner conductor is provided with a pair of disk body, one of them disk body is drive plate (4), and drive plate (4) is upper along offering multiple grooves (4-1) away from the direction at drive plate (4) center; Another disk body is thrust disc (6), and thrust disc (6) is relative with the opening direction of drive plate (4); Between thrust disc (6) and drive plate (4), be provided with steel ball (5), steel ball (5) is arranged in the groove (4-1) of drive plate (4); Drive plate (4) bottom surface is consolidated with drive link (3), and drive link (3) is connected with a gear driving pair through housing (11); On thrust disc (6), be provided with supporting rod (10), one end of supporting rod (10) is cemented on housing (11) with thrust disc (6) movable connection of bottom surface, supporting rod (10) the other end; The outer spring (9) that is set with of supporting rod (10), one end of spring (9) is cemented in thrust disc (6) bottom, and the other end of spring (9) is cemented on a bearing (8) that can slide along supporting rod (10); Be consolidated with in thrust disc (6) bottom the track bar (7) that penetrates housing (11).
2. bicycle speed limiting device as claimed in claim 1, it is characterized in that, described gear driving pair comprises the driven wheel of differential (2) that is cemented in drive link (3) end, with be cemented in drive bevel gear (1) on cycle wheel, that engage with driven wheel of differential (2), the shaft axis of drive bevel gear (1) and driven wheel of differential (2) is at same plane and mutually vertical.
3. bicycle speed limiting device as claimed in claim 2, is characterized in that, the number of teeth of described driven wheel of differential (2) is less than the number of teeth of drive bevel gear (1).
4. bicycle speed limiting device as claimed in claim 1, it is characterized in that, described drive plate (4) and thrust disc (6) include disc bottom surface, on bottom surface, be consolidated with truncated cone side, longitudinal cross section is the trapezium structure without bottom surface along bottom surface to make drive plate (4) and thrust disc (6); Described groove (4-1) is opened on the side of drive plate (4), and the elongation line of groove (4-1) is crossing with the shaft axis of drive plate (4).
5. bicycle speed limiting device as claimed in claim 1, it is characterized in that, on the bottom surface of described thrust disc (6), offer the through hole (6-1) that diameter is greater than supporting rod (10), through hole (6-1) below is consolidated with the convex shoulder (6-2) that internal diameter is identical with through hole (6-1), described supporting rod (10) adopts T shape bar, supporting rod (10) is successively through through hole (6-1) and convex shoulder (6-2), and its lower end is cemented on housing (11) inwall.
6. bicycle speed limiting device as claimed in claim 1, is characterized in that, described drive link (3) is connected with housing (11) by bearing (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320890524.3U CN203743263U (en) | 2013-12-31 | 2013-12-31 | Speed limiting device of bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320890524.3U CN203743263U (en) | 2013-12-31 | 2013-12-31 | Speed limiting device of bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203743263U true CN203743263U (en) | 2014-07-30 |
Family
ID=51343066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320890524.3U Expired - Fee Related CN203743263U (en) | 2013-12-31 | 2013-12-31 | Speed limiting device of bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203743263U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104176188A (en) * | 2014-08-26 | 2014-12-03 | 刘慧军 | Mechanical-type automatic bicycle safety speed limiting device |
| CN106042927A (en) * | 2016-07-08 | 2016-10-26 | 福建工程学院 | Manpower vehicle speed limiter |
| CN108087452A (en) * | 2017-12-31 | 2018-05-29 | 贵州大学 | A kind of efficient friction-type brake apparatus |
| CN108443360A (en) * | 2018-04-26 | 2018-08-24 | 南京工业职业技术学院 | A kind of baby carriage speed limiting device and perambulator |
| CN109184280A (en) * | 2018-10-15 | 2019-01-11 | 浙江工业大学 | A kind of anti-mistake turns revolving stage |
-
2013
- 2013-12-31 CN CN201320890524.3U patent/CN203743263U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104176188A (en) * | 2014-08-26 | 2014-12-03 | 刘慧军 | Mechanical-type automatic bicycle safety speed limiting device |
| CN106042927A (en) * | 2016-07-08 | 2016-10-26 | 福建工程学院 | Manpower vehicle speed limiter |
| CN108087452A (en) * | 2017-12-31 | 2018-05-29 | 贵州大学 | A kind of efficient friction-type brake apparatus |
| CN108087452B (en) * | 2017-12-31 | 2024-04-30 | 贵州大学 | High-efficient friction type braking device |
| CN108443360A (en) * | 2018-04-26 | 2018-08-24 | 南京工业职业技术学院 | A kind of baby carriage speed limiting device and perambulator |
| CN109184280A (en) * | 2018-10-15 | 2019-01-11 | 浙江工业大学 | A kind of anti-mistake turns revolving stage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20141231 |
|
| EXPY | Termination of patent right or utility model |