CN220535870U

CN220535870U - Brake device and bicycle

Info

Publication number: CN220535870U
Application number: CN202322191986.2U
Authority: CN
Inventors: 薛宇超
Original assignee: Qingdao Magene Intelligence Technology Co Ltd
Current assignee: Qingdao Magene Intelligence Technology Co Ltd
Priority date: 2023-08-15
Filing date: 2023-08-15
Publication date: 2024-02-27
Anticipated expiration: 2033-08-15

Abstract

The utility model discloses a brake device and a bicycle, wherein the brake device comprises: a main cylinder body, in which a main oil sump is formed; the buffer component is arranged above the main cylinder body, and an auxiliary oil bin positioned above the main oil bin is formed between the buffer component and the main cylinder body in a surrounding manner, and the auxiliary oil bin is communicated with the main oil bin; the cylinder cover body is locked above the main cylinder body and tightly presses and fixes the buffer component, an air cavity is formed between the cylinder cover body and the buffer component, and the air cavity is communicated with the external space; the piston rod is in sliding sealing connection with the main cylinder body through the sealing assembly, and at least an oil supply area is formed between the sealing assembly and the main cylinder body; when the piston rod slides along the extending direction, the oil supply area is converted from a state of being communicated with the auxiliary oil bin to a state of being disconnected from the auxiliary oil bin. According to the braking device provided by the utility model, the matched parts for braking are integrated and arranged into one unit module, and the whole unit module can be assembled or disassembled during assembly or disassembly, so that the replacement and the disassembly are convenient.

Description

Brake device and bicycle

Technical Field

The utility model belongs to the technical field of hydraulic braking, and particularly relates to a machine changing machine of a braking device structure.

Background

The road bicycle braking mode is mainly characterized in that a wired braking mode and an oil braking mode are adopted in the market, the oil braking mode is gradually in the main stream due to reliable braking performance, low loss in braking force transmission and light abrasion of related devices, all parts in a hydraulic braking structure in an upper main stream manual change product in the prior art are assembled and combined with a handle shell and cannot be independently split, if the later-stage hydraulic part has the defects that the whole handle is required to be replaced and the structure with the problem cannot be independently replaced;

and moreover, a plurality of parts of the hydraulic brake structure are distributed and matched, so that the occupied space is large.

The above information disclosed in this background section is only for enhancement of understanding of the background section of the application and therefore it may not form the prior art that is already known to those of ordinary skill in the art.

Disclosure of Invention

The utility model aims at the technical problems of the hydraulic brake structure in the prior art, and provides a novel brake device, wherein matched components for braking are integrally arranged into a unit module, the whole brake device can be assembled or disassembled when being assembled or disassembled, the replacement and the disassembly are convenient, and the structural arrangement of each component of the whole brake device is compact, and the occupied space is small.

In order to achieve the above-mentioned utility model/design purpose, the utility model adopts the following technical scheme to realize:

a brake assembly comprising:

a main cylinder body, in which a main oil sump is formed;

the buffer component is arranged above the main cylinder body, an auxiliary oil bin positioned above the main oil bin is formed between the buffer component and the main cylinder body in a surrounding manner, and the auxiliary oil bin is communicated with the main oil bin;

the cylinder cover body is locked above the main cylinder body and tightly presses and fixes the buffer component, an air cavity is formed between the cylinder cover body and the buffer component, and the air cavity is communicated with the external space;

the piston rod is in sliding sealing connection with the main cylinder body through the sealing assembly, and at least an oil supply area is formed between the sealing assembly and the main cylinder body;

when the piston rod slides along the extending direction, the oil supply area is converted from a state of being communicated with the auxiliary oil bin to a state of being disconnected from the auxiliary oil bin.

In some embodiments of the present application, the main cylinder has an opening extending out of the piston rod;

an oil storage area is formed between the sealing component and the main cylinder body, and the oil supply area is closer to the opening than the oil storage area;

when the oil supply area is communicated with the auxiliary oil bin, the oil storage area is communicated with the auxiliary oil bin; when the oil supply area is disconnected from the auxiliary oil bin, the oil storage area is connected with the auxiliary oil bin.

In some embodiments of the present application, the seal assembly comprises, in order along the piston rod axial direction from a direction proximal to the opening to a direction distal to the opening:

a first sealing member forming the oil supply region between the first sealing member and the main cylinder;

and a second sealing member, wherein the oil storage area is formed between the second sealing member and the main cylinder.

In some embodiments of the present application, there are further included:

the communication portion is used for communicating the main oil sump and the auxiliary oil sump, and the communication portion comprises:

the first communication hole penetrates through the top wall of the main cylinder body;

and a second communication hole penetrating through the top wall of the main cylinder body, adjacent to the first communication hole, the second communication hole being farther from the opening than the first communication hole.

In some embodiments of the present application, a recess is concavely formed on the top surface of the main cylinder body, and the buffer member includes:

a cushioning body member;

and a cushion convex portion extending from the cushion body member toward the concave portion side.

In some embodiments of the present application, there are further included:

and the oil pipe joint part is obliquely arranged on the main cylinder body and communicated with the oil supply area.

In some embodiments of the present application, an oiling portion is disposed at a position on one side of the main cylinder top surface cylinder head body, and the oiling portion is communicated with the auxiliary oil bin.

In some embodiments of the present application, a through portion communicating with the external space is provided in the cylinder head body.

In some embodiments of the present application, the piston rod has a free end extending from the main cylinder;

when the free end of the piston rod extends to a first limit position, the distance between the second sealing component and the free end is smaller than the distance between the second communication hole and the free end.

In some embodiments of the present application, a mounting portion for connection with a base body to which the main cylinder is mounted is provided on the main cylinder.

A bicycle comprises the brake device according to the technical scheme.

Compared with the prior art, the utility model has the advantages and positive effects that:

according to the brake device, the main cylinder body, the piston rod, the auxiliary oil bin, the main oil bin and the cylinder cover which form the parts of the hydraulic brake are all integrated into a unit module structure, so that the brake device can be used independently, and the whole module can be directly installed or detached through the installation part during installation and assembly, thereby facilitating installation and detachment;

the brake device is structurally arranged, a main oil bin is formed on the main cylinder body, an auxiliary oil bin is formed between the upper position of the main oil bin and the buffer part and is locked and fixed through the cylinder cover body arranged above the auxiliary oil bin, the piston rod is arranged in the main cylinder, the whole brake unit adopts a structural layout mode of up-down arrangement, the overall structural layout is compact, and the occupied space is small.

Other features and advantages of the present utility model will become apparent upon review of the detailed description of the utility model in conjunction with the drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a brake apparatus according to an embodiment of the present utility model;

FIG. 2 is an exploded view of a brake assembly according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a seal assembly of a brake apparatus in one position according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a seal assembly of a brake apparatus in another position according to an embodiment of the present utility model.

In the figure, 100, the main cylinder; 110. a main oil bin; 200. a buffer member; 210. a cushioning body member; 220. a buffer boss; 120. an auxiliary oil bin; 130. a cylinder head body; 131. a through part; 400. an air cavity; 140. a piston rod; 141. a free end;

500. a seal assembly; 510. a first sealing member; 520. a second sealing member; 150. an oil supply zone; 160. an opening; 170. an oil storage area; 180. a recessed portion; 190. an oil pipe joint portion; 600. a communication section; 610. a first communication hole; 620. a second communication hole; 700. and an oiling part.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, as well as, for example, fixedly coupled, detachably coupled, or integrally coupled, unless otherwise specifically indicated and defined. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. In the description of the embodiments, a particular feature, structure, material, or characteristic may be combined in any suitable manner in one or more embodiments or examples.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

The present utility model proposes an embodiment of a brake device in which a mounting portion for connection with a base body to which the main cylinder 100 is mounted is provided.

The mounting portion is mainly used for assembling the brake device to the base body.

The base is the main housing part that fits over the handle of the bicycle.

In some embodiments of the present application, the mounting portion is a card slot and card convex structure, and a card convex card slot is correspondingly disposed on the substrate.

Of course, the mounting part can also be a threaded locking hole, and the brake device can be assembled on the base body through a locking screw.

Specifically, the brake device includes:

a main cylinder 100, a main oil sump 110 being formed inside the main cylinder 100; the main cylinder body 100 forms a frame structure of the whole hydraulic brake section, and the oil pipe interface part 190 above the air slope and the main cylinder body 100 are designed into an integrated form, so that the hydraulic brake section is convenient to be connected with an oil pipe fitting of a brake, and hydraulic pressure in the main cylinder body 100 is conveyed to a position of the brake fitting for braking.

A buffer member 200 disposed above the main cylinder 100 and surrounding the main cylinder 100 with a sub-oil sump 120 above the main oil sump 110;

through the auxiliary oil bin 120, when the hydraulic oil loss in the main bin body is insufficient, the hydraulic oil is supplied to the main bin body through the auxiliary oil bin 120, so that the capacity of the hydraulic oil in the main oil bin 110 is ensured, and normal braking operation is ensured.

In some embodiments of the present application, a recess 180 is concavely formed on the top surface of the main cylinder 100, and the buffer member 200 is disposed on the recess 180 and surrounds the recess 180 to form the auxiliary oil sump 120.

The recess 180 is a recess groove.

In some embodiments of the present application, the cushioning component 200 includes:

cushioning body member 210;

and a buffer protrusion 220 extending from the buffer body member 210 toward the recess 180, the buffer member 200 being easily pressed by the buffer protrusion 220 protruding toward the recess to release pressure when an upward pneumatic force is present.

The buffer member 200 is made of soft rubber, has elasticity, can deform after being pressed, forms the upper surface of the auxiliary oil tank, and mainly absorbs and releases pressure generated by the volume change of brake oil due to the temperature change of oil in the main cylinder 100 through deformation of the buffer member.

The cylinder cover body 130 is locked above the main cylinder body 100 and tightly presses and fixes the buffer component 200, an air cavity 400 is formed between the cylinder cover body 130 and the buffer component 200, and the air cavity 400 is communicated with an external space;

the cylinder head body 130 is pressed against the upper side of the buffering member 200, and is fastened and fixed to the top surface of the main cylinder body 100 by means of a fastening screw.

In some embodiments of the present application, a through portion 131 communicating with the external space is formed in the head body 130.

The through part 131 is a through hole provided in the cylinder head body 130, and serves to ensure that the air chamber of the buffer member 200 facing the cylinder head body 130 is balanced with the external air pressure;

when the volume of the oil passage is expanded, it is transferred to the sub-tank 120, the upper portion of the buffering member 200 is kept in conformity with the external air pressure, and the lower portion is the upper surface of the sub-tank, the pressure is transferred to the buffering member 200, and since the buffering member 200 is deformable, the deformation moves toward the air chamber 400 side after receiving the pressure, the air chamber 400 between the cylinder head body 130 and the buffering member 200 is reduced, and the sub-tank is enlarged in volume to release the pressure.

A piston rod 140 slidably and sealingly connected to the main cylinder 100 through a seal assembly 500, and at least an oil supply area 150 is formed between the seal assembly 500 and the main cylinder 100;

during the sliding extension of the piston rod 140, the oil supply area 150 is switched from the communication state with the auxiliary oil sump 120 to the disconnection state with the auxiliary oil sump 120.

In some embodiments of the present application, an oil injection part is disposed at a position on one side of the cylinder head 130 on the top surface of the main cylinder body 100, and the oil injection part is communicated with the auxiliary oil sump 120. The oil injection part is an oil injection hole.

In order to realize the sealing of the oil filling hole, an oil filling hole screw is further arranged and can be screwed in the oil filling hole to realize the sealing of the oil filling hole.

An oil filling hole sealing ring is arranged between the top surface of the oil filling hole and the end surface of the oil filling hole screw.

When oiling, the oil can be injected into the auxiliary oil sump 120 through the oiling part, and because the auxiliary oil sump 120 is communicated with the main oil sump 110,

oil may be injected into the interior of the main sump 110 through the sub sump 120 such that hydraulic oil is stored in both the main sump 110 and the sub sump 120.

An oil supply area 150 is formed between the main cylinder 100 and the sealing assembly 500.

Specifically, the oil supply area 150 is disposed at a front side area near the main cylinder 100 where the opening 160 is provided, and the piston rod 140 presses the hydraulic oil located in the oil supply area 150 to push the hydraulic oil to flow out of the oil pipe interface 190 for braking action when sliding with respect to the main cylinder 100,

in the initial state, the oil supply area 150 is in communication with the secondary reservoir body, and at this time, the piston rod 140 moves, and the pressure is released through the secondary reservoir 120 and the buffer member 200;

as the piston rod 140 is continuously slid and extended outward, the volume of the oil supply area 150 is changed, and the oil supply area 150 is changed from the connected state with the auxiliary oil sump 120 to the disconnected state, at this time, the piston rod 140 moves to push the hydraulic oil in the oil supply area 150 to be delivered outward for oil supply.

To enable communication of the main sump 110 and the sub sump 120 and for filling, in some embodiments of the present application, a communication portion 600 is further provided for communicating the main sump 110 and the sub sump 120.

The communication part 600 includes: a first communication hole 610 penetrating the top wall of the main cylinder 100;

and a second communication hole 620 disposed through a top wall of the main cylinder 100, adjacent to the first communication hole 610, the second communication hole 620 being spaced apart from the opening 160 than the first communication hole 610.

In use, the first communication hole 610 may be used to refuel the main cartridge body and the second communication hole 620 may be used to vent air during refuelling.

In some embodiments of the present application, the sealing assembly 500 includes, in order along the axial direction of the piston rod 140 from a direction proximate to the opening 160 to a direction distal from the opening 160:

a first sealing member 510 forming the oil supply region 150 between the first sealing member 510 and the main cylinder 100;

and a second sealing member 520, wherein an oil storage area 170 is formed between the second sealing member 520 and the main cylinder 100.

The first sealing member 510 is a high pressure seal ring: the oil of the oil supply area 150 is pressed when the piston rod 140 moves;

the second seal member 520 is a low pressure seal ring, and seals the oil in the oil reservoir 170 between the high pressure seal ring and the low pressure seal ring.

Wherein, when the oil supply area 150 and the auxiliary oil sump 120 are communicated through the first communication hole 610, the oil storage area 170 is communicated with the auxiliary oil sump 120 through the second communication hole 620; when the oil supply area 150 and the sub-sump 120 are disconnected from each other, the oil storage area 170 communicates with the sub-sump 120 through the first communication hole 610, the second communication hole 620.

The main cylinder 100 has an opening 160 to facilitate the extension and retraction of the piston rod 140, and a first limiting surface is provided at the opening 160 to prevent the piston rod 140 from being separated.

For convenience of description, the first position a is defined as a position of the first through hole 610 near the first limiting surface, and the position of the first sealing member 510 during sliding is defined as a second position B, i.e., a position of the first sealing member 510.

When the piston rod 140 extends outwards and slides relative to the main cylinder body 100, after the high-pressure sealing ring sleeved on the piston rod 140 exceeds the first position A, the communication between the oil supply area 150 at the front end and the auxiliary oil tank is disconnected, the piston rod 140 continues to move forwards to compress the volume of the oil supply area 150, and the piston rod 140 is used for compressing the volume of the oil supply area 150 during braking, so that oil is extruded to the position of the oil pipe interface part 190 along the internal communication oil path;

when the second position B exceeds the first position a, the oil supply area 150 is in an incompressible state, and a constant pressure space is formed between the high and low pressure sealing rings of the piston rod 140, which acts as: the volumes of the oil storage area 170 at the rear end and the auxiliary oil tank are kept constant during braking.

In some embodiments of the present application, a piston rod 140 sealing ring is further provided, and an annular sealing ring at the front end of the piston rod 140 is installed in an annular groove of the main cylinder body 100, and mainly functions as sealing and dust prevention;

limiting clamp spring: is installed in the clamping groove at the tail end of the main cylinder body 100 to prevent the piston rod 140 from falling off.

In some embodiments of the present application, the piston rod 140 has a free end 141 that can protrude from the main cylinder 100, and the first limit position is a position when the piston rod 140 moves to the first limit surface position where the first sealing member 510 abuts against the first limit surface position when the free end 141 moves to the first limit position.

The distance between the second sealing member 520 and the free end 141 is smaller than the distance between the second communication hole 620 and the free end 141, so as to ensure that the second communication hole 620 does not exceed the position of the second sealing member 520, further ensure the sealing effect on the hydraulic oil in the oil storage area 170, and prevent leakage.

In the braking device, the main cylinder body 100, the piston rod 140, the auxiliary oil bin 120, the main oil bin 110 and the cylinder cover body 130 which are components forming the hydraulic brake are all integrated into a unit module structure, so that the braking device can be used independently, and the whole module can be directly installed or detached through the installation part during installation and assembly, thereby facilitating installation and detachment;

the brake device is structurally arranged, a main oil bin 110 is formed on a main cylinder body 100, an auxiliary oil bin 120 is formed between a buffer part 200 at the upper position of the main oil bin and is locked and fixed through a cylinder cover body 130 arranged above the auxiliary oil bin, a piston rod 140 is arranged in the main cylinder, and the whole brake unit adopts a structural layout mode of up-down arrangement, so that the whole structural layout is compact and the occupied space is small.

The utility model also provides an embodiment of the bicycle, which comprises the brake device in the embodiment.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims

1. A brake assembly, comprising:

a main cylinder body, in which a main oil sump is formed;

2. A brake arrangement according to claim 1, wherein the main cylinder has an opening extending beyond the piston rod;

3. A brake arrangement according to claim 2, wherein the sealing assembly comprises, in order along the axial direction of the piston rod from a direction proximal to the opening to a direction distal from the opening:

4. A brake apparatus according to claim 3, further comprising:

5. The brake apparatus as claimed in claim 1, wherein a recess is concavely formed on a top surface of the main cylinder, and the buffer member includes:

a cushioning body member;

6. The brake apparatus of claim 1, further comprising:

7. The brake apparatus according to claim 1, wherein an oil filling portion is provided at a position on a side of the main cylinder body top surface cylinder head body, and the oil filling portion is communicated with the auxiliary oil reservoir.

8. The brake apparatus according to claim 1, wherein a through portion communicating with an external space is provided in the cylinder head body.

9. The brake apparatus of claim 4, wherein the piston rod has a free end extending from the main cylinder;

10. A bicycle comprising a brake apparatus according to any one of claims 1 to 9.