TWM504052U - Bicycle hydraulic brake structure - Google Patents

Description

Bicycle hydraulic brake structure

This creation is about a bicycle brake application field, especially a bicycle hydraulic brake structure that drives a hydraulic piston through a connecting rod needle.

The bicycle hydraulic brake structure 200 currently used can be as shown in FIGS. 1 and 2, and includes a hydraulic cylinder 210, a piston 220, and a grip 230. The piston 220 is movably disposed in the hydraulic cylinder 210. The grip 230 is pivotally connected to an open end 211 of the hydraulic cylinder 210, and the end of the grip 230 connected to the hydraulic cylinder 210 extends downwardly with spaced apart two perforations 231, and the two perforations 231 are available. A bolt 250 and an axial direction are bored in the radial direction of the grip 230, and the bolt 250 is provided with an inner screw hole 251 between the two through holes 231 in the radial direction of the bolt 250.

The bicycle hydraulic brake structure 200 may include a connecting rod 240 having a head portion 241, a rod portion 242, and an external thread portion 243. The two ends of the rod portion 242 are respectively coupled to the head portion 241 and the external thread. The portion 243 is connected, and the head portion 241 can pass through the open end 211 of the hydraulic cylinder 210 to abut against the piston 230, and the external thread portion 243 is screwed to the inner screw hole 251 of the bolt 250.

When the above structure is assembled, the connecting washer 260 must be firstly disposed on the connecting rod 240, and then the C-ring 270 is placed in the groove. Finally, the bolt 250 is passed through the two through holes 231, and then the connecting rod 240 is The external thread portion 243 is screwed into the screw hole 251 of the bolt member 250, which is not only complicated in structure, but also complicated in assembly, resulting in prolonged production time and increasing manufacturing and production costs.

In view of this, the creator has improved the shortcomings of the prior art, and after years of experience in this industry, he created the creation.

Therefore, the purpose of the present invention is to solve the above problems and provide a bicycle hydraulic brake structure, which utilizes the second head of the connecting rod needle to facilitate the hooking of the two grooves of the second groove of the connecting member of the grip, Reduced manufacturing time, ease of assembly, disassembly and manufacturing, saving manufacturing time and costs.

To achieve the above object, the present invention provides a bicycle hydraulic brake structure including a hydraulic cylinder, a piston, and a grip movably disposed in the hydraulic cylinder, the grip pivotally Connecting to an open end of the hydraulic cylinder, the bicycle hydraulic brake structure further comprises a connecting rod needle having a first head, a body, and a second head The two ends of the body are respectively connected to the first head and the second head, and the first head passes through the open end of the hydraulic cylinder to abut the piston, and the second head is in the The first radial direction of the body is opposite to each other; the end of the hydraulic cylinder is pivotally connected downwardly with a connecting member, and the connecting member is concavely disposed on a side of the open end of the hydraulic cylinder a second groove, the second groove is oppositely convexly provided with two bumps in a radial direction of the grip; and the second head of the link needle is accommodated in the second groove of the grip And each of the first grooves is accommodating and pivotally limited to the corresponding one of the protrusions.

The piston has a recessed end adjacent to the open end of the hydraulic cylinder, and the recessed end is rotatably abutted and received by the first head of the connecting rod.

The recessed end of the piston has a concave arc shape, and the first head of the connecting rod needle is spherical.

The above objects and advantages of the present invention will be readily understood from the following detailed description of the embodiments and the accompanying drawings.

Of course, the present invention is allowed to differ in some of the parts, or the arrangement of the parts, but the selected embodiments are described in detail in the present specification, and the construction thereof is shown in the drawings.

[This creation]

100‧‧‧Bicycle hydraulic brake structure

1‧‧‧Hydraulic cylinder

11‧‧‧Open end

2‧‧‧Piston

21‧‧‧ recessed end

3‧‧‧ grip

31‧‧‧Connecting parts

32‧‧‧second groove

33‧‧‧Bumps

4‧‧‧ Connecting rod needle

41‧‧‧ first head

42‧‧‧ Body

43‧‧‧second head

44‧‧‧First groove

[知知]

200‧‧‧Bicycle hydraulic brake structure

210‧‧‧Hydraulic cylinder

211‧‧‧Open end

220‧‧‧Piston

230‧‧‧ grip

231‧‧‧Perforation

240‧‧‧ linkage

241‧‧‧ head

242‧‧‧ Rod

243‧‧‧External thread

250‧‧‧Bolts

251‧‧‧Inner hole

260‧‧‧Connected to the company

270‧‧‧C buckle

Fig. 1 is an exploded perspective view showing the structure of a conventional bicycle hydraulic brake.

Figure 2 is a cross-sectional view showing the structure of a conventional bicycle hydraulic brake.

Fig. 3 is a schematic exploded view showing the structure of the bicycle hydraulic brake of the present invention.

Fig. 4 is a schematic view showing the appearance of the bicycle hydraulic brake structure of the present invention.

Fig. 5 is a schematic view showing the appearance of the connecting rod needle connecting grip of the bicycle hydraulic brake structure of the present invention.

Figure 6 is a cross-sectional view showing the structure of the bicycle hydraulic brake of the present invention.

Fig. 7 is a view showing a state in which the grip is pressed down in Fig. 6.

The technical means by which this creation is used to achieve the above objectives are described in detail below with the following implementation diagrams, which are further understood and agreed upon.

Referring to FIGS. 3 to 7 , the bicycle hydraulic brake structure 100 of the present invention includes a hydraulic cylinder 1 , a piston 2 , and a grip 3 , and the piston 2 is movably disposed in the hydraulic cylinder 1 . The grip 3 is pivotally connected to an open end 11 of the hydraulic cylinder 1, the piston 2 has a recessed end 21 adjacent to the open end 11 of the hydraulic cylinder 1, and the recessed end 21 of the piston 2 can be a concave arc shape.

The bicycle hydraulic brake structure 100 of the present invention may further include a link needle roller 4 having a first head portion 41, a body portion 42, and a second head portion 43 at both ends of the body portion 42. Connected to the first head portion 41 and the second head portion 43, respectively, the first head portion 41 can be spherical and can pass through the open end 11 of the hydraulic cylinder 1 against the piston 3, that is, the recessed end of the piston 2 The first head portion 41 of the connecting rod needle roller 4 is rotatably abutted and received, and the second head portion 43 is oppositely disposed with two first recesses 44 in the radial direction of the body portion 42.

A connecting member 31 is extended downwardly from the end of the gripping cylinder 3, and a second recess 32 is recessed in a side of the connecting member 31 corresponding to the open end 11 of the hydraulic cylinder 1. The second recess 32 is in the grip. The radial direction of 3 is relatively convex with two bumps 33.

The second head portion 43 of the connecting rod needle 4 is received in the second recess 32 of the grip 3, and each of the first recesses 44 is accommodated and pivotally constrained by the corresponding bumps 33.

Therefore, when the user presses the lower grip 3, the grip 3 can pivot downward relative to the hydraulic cylinder 1, and pushes the connecting rod 31 of the grip 3 against the connecting rod needle 4, thereby connecting the needle roller 4 The first head 41 pushes against the recessed end 21 of the piston 2; and since the recessed end 21 of the piston 2 has a concave arc shape, and the first head 41 of the link needle 4 is spherical, the link roller When the first head 41 of the needle 4 is pushed against the recessed end 21 of the piston 2, the position can be automatically adjusted.

With the above structure, the second head portion 43 of the connecting rod needle 4 is conveniently engaged with the two bumps 33 of the second recess 32 of the connecting member 31 of the grip 3, so that the structure can be simplified, assembled, disassembled and Manufacturing, which in turn saves manufacturing time and costs.

The above description of the embodiments is intended to be illustrative of the present invention and is not intended to limit the present invention, so any change in the value or substitution of equivalent elements should still fall within the scope of the present invention.

From the above detailed description, it will be apparent to those skilled in the art that the present invention can achieve the aforementioned objectives, and has been in compliance with the provisions of the Patent Law, and has filed a patent application.

100‧‧‧Bicycle hydraulic brake structure

1‧‧‧Hydraulic cylinder

11‧‧‧Open end

2‧‧‧Piston

21‧‧‧ recessed end

3‧‧‧ grip

31‧‧‧Connecting parts

32‧‧‧second groove

33‧‧‧Bumps

4‧‧‧ Connecting rod needle

41‧‧‧ first head

42‧‧‧ Body

43‧‧‧second head

44‧‧‧First groove

Claims (3)

A bicycle hydraulic brake structure includes a hydraulic cylinder, a piston, and a grip movably disposed in the hydraulic cylinder, the grip being pivotally coupled to an open end of the hydraulic cylinder The connection is characterized in that: the bicycle hydraulic brake structure further comprises a connecting rod needle having a first head, a body, and a second head, the two ends of the body respectively The first head and the second head are connected, the first head passes through the open end of the hydraulic cylinder and abuts against the piston, and the second head is oppositely disposed in a radial direction of the body a first groove; the end of the gripping cylinder pivotally extending downwardly has a connecting member, and the connecting member is recessed with a second groove corresponding to a side of the open end of the hydraulic cylinder, the second recess The groove is convexly provided with two bumps in a radial direction of the grip; and the second head of the link needle is received in the second groove of the grip, and each of the first grooves Then, the corresponding bumps are accommodated and pivotally limited. The bicycle hydraulic brake structure of claim 1, wherein the piston has a recessed end adjacent to the open end of the hydraulic cylinder, the recessed end being rotatably biased by the first head of the link needle With the capacity. The bicycle hydraulic brake structure according to claim 2, wherein the recessed end of the piston is a concave arc shape, and the first head of the link needle is spherical.