CN210653513U

CN210653513U - Improved bicycle foot brake assembly

Info

Publication number: CN210653513U
Application number: CN201921655535.7U
Authority: CN
Inventors: 王春涛
Original assignee: Suzhou Falcon Cycle Parts Co ltd
Current assignee: Suzhou Falcon Cycle Parts Co ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-06-02
Anticipated expiration: 2029-09-30

Abstract

The utility model provides an improved bicycle foot brake component, which utilizes the pile inserting extrusion brake to replace the brake shoe friction brake mode, when braking, the brake pile inserting is extruded into the wheel to limit the rotation of the wheel, playing the brake role; when the brake is not performed, the brake pile is far away from the wheel, the rotation of the wheel is not influenced, the loss of the wheel can be reduced in the mode, the limiting force is exerted on the wheel in a multi-direction mode through the pile, and the limiting performance can be improved.

Description

Improved bicycle foot brake assembly

Technical Field

The utility model relates to a bicycle service brake field, in particular to modified bicycle service brake subassembly uses the roll of the mode braking wheel of stake extrusion braking.

Background

Both the foot brake and the hand brake are common brake modes applied to the brake control of the bicycle. Different from a hand brake, the riding vehicle does not need to additionally apply pressure on a hand brake handle in the braking process, and only needs to rotate a pedal backwards to drive a rear wheel to rotate backwards, so that a foot brake assembly can be triggered to brake the rotation of the rear wheel; moreover, the foot brake is a more instinctive braking mode for children, so the foot brake mode is more adopted in the braking of the baby carrier.

However, the conventional service brake realizes braking by friction between the brake shoe and the wheel inner ring, the braking effect completely depends on the degree of friction between the brake shoe and the wheel inner ring, and the brake shoe is inevitably worn after long-term use, so that the braking effect is affected, and the safety performance is poor. In addition, some brake assemblies on the market are directly exposed to the outside of the wheel, which not only affects the aesthetic appearance of the bicycle, but also easily wears the brake assemblies, especially for children's carriages, and children may play with the brake assemblies exposed to the outside of the wheel, thereby causing unnecessary safety accidents and affecting the service life of the bicycle.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an improved bicycle service brake component, which utilizes the way of pile insertion extrusion braking to replace brake shoe friction braking, improves the braking performance, reduces the abrasion to the equipment and prolongs the service life of the bicycle; and the service life of the bicycle can be prolonged while the appearance aesthetic feeling of the bicycle is improved by the mode that the foot brake assembly is arranged in the wheel and is not exposed.

The utility model provides a modified bicycle service brake subassembly, the utility model provides a modified bicycle service brake subassembly includes at least:

the brake device comprises a mandrel, a bearing pipe and a brake assembly, wherein the bearing pipe is rotatably arranged on the mandrel, and the brake assembly is arranged in a gap between the bearing pipe and the mandrel;

the pile inserting extrusion part further comprises an extrusion rod connected with the clutch cone, a sleeve fixed on the outer wall of the mandrel and a braking pile inserting piece movably arranged in the sleeve, the extrusion rod is movably arranged in the sleeve, and the extrusion rod is matched with the extrusion braking pile inserting piece to move in the limiting direction of the sleeve; an inner groove is formed in the inner wall of the bearing pipe corresponding to the position of the brake inserting pile.

In some embodiments, the eccentric cone moves away from the stake extrusion and is restrained by the bearing tube when the ride vehicle is riding on the forward running pedals, which condition is defined as a non-braking condition; when the rider reversely rotates the pedal, the centrifugal cone moves in a direction to approach the pile-insertion pressing member, and the brake pile 1 is pressed in a direction to the inner groove, which is a braking state.

In some embodiments, the central portion of the mandrel is provided with a guide thread segment to which an off-center conical external thread is attached.

In some embodiments, the inner wall of the bearing tube forms an inner slope, and correspondingly, the surface of one end of the centrifugal cone far away from the pile inserting extrusion part is also designed to be a slope matched with the inner slope, and when the centrifugal cone is in a non-braking state, the slope end of the centrifugal cone is limited against the inner slope.

In some embodiments, the sleeve is placed on the mandrel, a sliding pipe groove perpendicular to the axial direction of the mandrel and a through groove parallel to the axial direction of the mandrel are arranged in the sleeve, and the sliding pipe groove is connected with the through groove to form an L-shaped space in the sleeve.

In some embodiments, the end of the extrusion rod in contact with the braking plug is designed as a first inclined surface, the end of the braking plug in contact with the extrusion rod is designed as a second inclined surface, and the inclination angles of the first inclined surface and the second inclined surface are the same.

In some embodiments, when the centrifugal cone is in the braking state, the extrusion rod extends into the sliding pipe groove, and the extrusion braking plug extends out of the sliding pipe groove and is extruded into the inner groove.

In some embodiments, the squeeze rod and the brake stake are connected within the sleeve by a resilient spring, and the resilient spring is in a natural state when the centrifugal cone is in a non-braking state.

In some embodiments, the brake cone is externally fixed with an extension rod positioned outside the bearing pipe, and the extension rod is fixed with the frame.

In some embodiments, the support section is arranged outside the mandrel, and bearings are arranged on two sides of the bearing tube.

Compared with the prior art, the utility model has the following characteristics and beneficial effect:

1. the pile inserting extrusion braking is used for replacing a brake shoe friction braking mode, and when braking is carried out, the brake pile inserting is extruded into the wheel to limit the rotation of the wheel, so that the braking effect is achieved; when the brake is not performed, the brake pile is far away from the wheel, the rotation of the wheel is not influenced, the loss of the wheel can be reduced in the mode, the limiting force is exerted on the wheel in a multi-direction mode through the pile, and the limiting performance can be improved.

2. The brake component is arranged in the wheel, the rotation of the bearing is directly controlled to control the braking of the wheel, the braking performance of the brake is improved, the brake component can be protected from being influenced by the external environment, and the service life of the bicycle is prolonged.

Drawings

Fig. 1 is a schematic structural view of an improved bicycle service brake assembly according to an embodiment of the present invention.

Fig. 2 is an internal schematic view of a stake extrusion of a service brake assembly according to an embodiment of the present invention.

Fig. 3 is an internal schematic view of a stake extrusion of a service brake assembly according to an embodiment of the present invention.

In the figure: 10-brake assembly, 11-brake cone, 12-clutch cone, 13-stake-extrusion, 131-extrusion rod, 1311-first bevel, 132-sleeve, 1321-sliding tube groove, 133-brake stake, 1331-second bevel, 14-extension rod, 20-mandrel, 21-guiding thread section, 30-bearing tube, 31-inner bevel, 32-inner groove, 40-faceplate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the terms are used in the description to indicate that the referenced device or element must have the specified orientation, be constructed and operated in the specified orientation, and not for the purposes of limitation.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

The utility model provides an improved bicycle foot brake component, which utilizes the pile inserting extrusion brake to replace the brake shoe friction brake mode, improves the brake performance, reduces the abrasion to the equipment and prolongs the service life of the bicycle; and the service life of the bicycle can be prolonged while the appearance aesthetic feeling of the bicycle is improved by the mode that the foot brake assembly is arranged in the wheel and is not exposed.

Specifically, the method at least comprises the following steps: the brake assembly 10 comprises a mandrel 20, a bearing tube 30 and a brake assembly 10, wherein the bearing tube 30 is rotatably installed on the mandrel 20, the brake assembly 10 is arranged in a gap between the bearing tube 30 and the mandrel 20, wherein the brake assembly 10 at least comprises a brake cone 11, a clutch cone 12 and a pile inserting extrusion piece 13 which are sleeved on the mandrel 20, the pile inserting extrusion piece 13 further comprises an extrusion rod 131 connected with the clutch cone 12, a sleeve 132 fixed on the outer wall of the mandrel 20 and a brake pile inserting 133 movably arranged in the sleeve 132, the extrusion rod 131 is also movably arranged in the sleeve 132, and the extrusion rod 131 is matched with the brake pile inserting piece 133 to move in the limited direction of the sleeve 132; the inner wall of the bearing tube 10 is provided with an inner groove 32 at a position corresponding to the stopper insert 133.

In the embodiment of the present invention, when the riding vehicle is riding with the pedal rotated in the forward direction, the centrifugal cone 12 moves in a direction away from the stake-inserting extrusion 13 and is limited by the bearing tube 30, and this state is defined as a non-braking state; when the rider reversely rotates the foot pedal, the eccentric cone 12 moves in a direction to approach the stake pressing member 13, and the brake stake 133 is pressed in a direction to the inner groove 32, which is a braking state.

Specifically, two ends of the spindle 20 are rotationally fixed on the frame, pedal assemblies are fixed at the two ends, the spindle 20 can be driven to rotate towards different modes by driving the pedal assemblies, specifically, a guide threaded section 21 is arranged in the middle of the spindle 20, the centrifugal cone 12 is externally threaded on the guide threaded end 21, and when the spindle 20 is driven to rotate towards one direction by pedal force, the centrifugal cone 12 moves towards one direction on the guide threaded section 21; at the same time, when the spindle 20 is rotated in the other direction, the centrifugal cone 12 is moved rotationally towards the other.

In the embodiment of the present invention, the inner wall of the bearing tube 30 forms an inner inclined plane 31, correspondingly, a surface of the end of the centrifugal cone 12 away from the pile-inserting extrusion 13 is also designed as a matched inclined plane, so that when the centrifugal cone 12 is in the non-braking state, the inclined plane end of the centrifugal cone 12 is abutted against the inner inclined plane 31 and is limited.

As shown in fig. 2 and 3, the sleeve 132 is disposed on the mandrel 20, a sliding slot 1321 perpendicular to the axial direction of the mandrel 20 and a through slot parallel to the axial direction of the mandrel 20 are disposed in the sleeve 132, the sliding slot 1321 is connected with the through slot to form an L-shaped space in the sleeve 132, the extrusion rod 131 is movably disposed in the through slot, and the brake insert 133 is movably disposed in the sliding slot 1321.

The end of pressing rod 131 contacting with brake stake 133 is designed as first slope 1311, the end of brake stake 133 contacting with pressing rod 131 is designed as second slope 1331, and the slope angle of first slope 1311 and second slope 1331 is the same.

When the centrifugal cone 12 is in a non-braking state, the extrusion rod 131 is connected with the inclined surface of the braking plug 133; when the eccentric cone 12 is in the braking state, the extrusion rod 131 extends into the sliding pipe slot 1321, and the extrusion braking stake 133 extends out of the sliding pipe slot 1321 and extrudes into the inner groove 32 to brake the rotation of the bearing pipe 30.

In particular, the pressing rod 131 and the braking stake 13 are connected in the sleeve 13 by an elastic spring, and the elastic spring is in a natural state when the centrifugal cone 12 is in a non-braking state.

In an embodiment of the present invention, the brake cone 11 is externally fixed with an extension rod 14 located outside the bearing tube 30, and the extension rod 14 is fixed with the frame.

In addition, in some embodiments, a support section is provided outside the mandrel 20, bearings are provided on both sides of the bearing tube 30, one of which is installed between the brake cone 11 and the inner wall of the bearing tube 30, and the other of which is installed between the support section of the mandrel 20 and the inner wall of the shaft tube.

The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by the teaching of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as the present invention, fall within the protection scope of the present invention.

Claims

1. An improved bicycle service brake assembly, comprising at least:

2. The improved bicycle service brake assembly as in claim 1, wherein the centrifugal cone moves away from the stake extrusion and is restrained by the bearing tube when the rider is riding on the pedals in a forward direction, which condition is defined as a non-braking condition; when the rider reversely rotates the pedal, the centrifugal cone moves in a direction approaching the pile-insertion pressing member, and the brake pile is pressed in a direction facing the inner groove, which is a braking state.

3. The improved bicycle service brake assembly as in claim 2, wherein the central portion of the spindle is provided with a lead screw section to which the off-center conical external threads are attached.

4. The improved bicycle service brake assembly as in claim 2, wherein the inner wall of the bearing tube defines an inner ramp surface and correspondingly the surface of the end of the centrifugal cone remote from the stake extrusion is also designed to be a mating ramp surface, the ramp end of the centrifugal cone being restrained against the inner ramp surface when the centrifugal cone is in the non-braking condition.

5. The improved bicycle service brake assembly as in claim 2, wherein the sleeve is disposed on the spindle, the sleeve having a sliding slot extending perpendicular to the axis of the spindle and a through slot extending parallel to the axis of the spindle, the sliding slot and the through slot being connected to form an L-shaped space within the sleeve.

6. The improved bicycle service brake assembly as in claim 5, wherein the end of the compression rod in contact with the brake stake is designed as a first inclined surface, the end of the brake stake in contact with the compression rod is designed as a second inclined surface, and the first inclined surface and the second inclined surface are inclined at the same angle.

7. The improved bicycle service brake assembly as in claim 5, wherein the squeeze rod extends into the slide tube slot and the squeeze brake stake extends out of the slide tube slot and into the inner slot when the centrifugal cone is in the braking position.

8. The improved bicycle service brake assembly as in claim 5, wherein the squeeze lever and the brake stake are connected within the sleeve by a resilient spring, and the resilient spring is in a natural state when the centrifugal cone is in a non-braking state.

9. An improved bicycle service brake assembly as in any of claims 1 to 8, wherein the brake cone has an extension rod secured thereto outside the bearing tube, the extension rod being secured to the frame.

10. An improved bicycle service brake assembly as in any of claims 1 to 8, wherein the spindle is externally provided with a support section and the bearing tube is provided with bearings on both sides.