CN105952816A - Anti-lock oil pressure dish brake device for bicycle - Google Patents

Abstract

The invention discloses an anti-lock hydraulic disc brake device for bicycles. There are multiple sets of oppositely arranged pistons, and brake pads are fixed on the pistons. The brake pads on each set of oppositely arranged pistons are located on both sides of the disc. Under the action of oil pressure, the brake pads on the pistons squeeze the friction disc. The side of the piston is also provided with support shrapnel, and also includes a hydraulic cylinder, the lower end of the hydraulic cylinder is threadedly connected with the caliper, an oil pipe is arranged in the hydraulic cylinder, and a contact channel is also provided at the lower end of the hydraulic cylinder. A contact is arranged in the channel, and the contact is in close contact with the contact channel, and the lower end of the contact protrudes from the hydraulic cylinder and is located on the top of the disc. The invention effectively solves the anti-locking problem of the hydraulic disc brake of the bicycle; the braking process is flexible, the design is flexible, the contact and the hydraulic cylinder can be made independently, and can directly cooperate with existing products.

Description

A bicycle anti-lock hydraulic disc brake device

technical field

The invention relates to the technical field of bicycle brakes, in particular to an anti-lock hydraulic disc brake device for bicycles.

Background technique

The principle of anti-lock braking is high-frequency point braking to prevent the car from skidding when the wheels stop quickly. At present, the most effective anti-lock braking system is mainly used in automobile braking, because of its complex structure, and compared with the large volume of bicycles, it is difficult to apply automobile anti-lock braking systems to bicycle braking due to the limitation of bicycle space. An effective anti-lock braking system or structure is urgently needed.

Contents of the invention

The purpose of the present invention is to provide a safe and reliable bicycle anti-lock solution for bicycles and provide a bicycle anti-lock hydraulic disc brake device in order to make up for the limitations of the existing anti-lock brake system technology.

The present invention is achieved through the following technical solutions:

An anti-lock hydraulic disc brake device for a bicycle, comprising a disc, the disc is a disc with a continuous shape on the outer edge, a caliper is arranged on the outer side of the disc, and a plurality of sets of relative sets are arranged inside the caliper The pistons are fixed with brake pads, and the brake pads on each set of opposite pistons are located on both sides of the disc. Under the action of oil pressure, the brake pads on the pistons squeeze the friction disc. It is provided with support shrapnel, and also includes a hydraulic cylinder. The lower end of the hydraulic cylinder is threadedly connected with the caliper. An oil pipe is arranged in the hydraulic cylinder, and the oil pipe, the hydraulic cylinder and the caliper are filled with hydraulic oil. There is a contact channel, and there is a contact in the contact channel. The contact is in close contact with the contact channel. The lower end of the contact extends out of the hydraulic cylinder and is located on the top of the disc. The contact contacts the disc under the action of oil pressure. and squeeze the disc.

The disc with a continuous outer edge is a disc with a continuous corrugated or serrated outer edge.

The hydraulic cylinder and the caliper are tightly connected together through a threaded connection, the oil pipe is connected to the hydraulic cylinder, and the oil pipe, hydraulic cylinder, and caliper are filled with hydraulic oil. When the initial position does not move, the contact does not contact the involute disc. When pinching the brake lever, under a certain external force, the hydraulic oil is compressed, and the pressure is delivered to the piston and the contact. Because the piston is supported by shrapnel, the pressure acts on the contact, causing the contact to displace. At this time, the contact is just Start to contact with the involute disk, if the external force is constant at this time, because of the special involute disk, the contact between the contact and the disk is intermittent, when the involute disk rotates, the contact is compressed , the hydraulic oil continues to be compressed, the piston is pushed to clamp the disc for braking, the involute disc continues to rotate, the contact is compressed to the maximum, and the clamping force is the largest, which is a continuous process, the involute disc continues to rotate, The contact is released without being compressed by the involute disc, the hydraulic oil pressure decreases, and the clamping force decreases. When the contact just separates from the involute disc, the hydraulic oil pressure decreases, the clamping force disappears, and the involute The line disc is released and no longer brakes until the next contact point to repeat the appeal process to achieve high-frequency point braking and prevent locking.

The advantages of the present invention are: the disc of the present invention is a disc with a continuous shape on the outer edge and by cooperating with the contact, there is a special motion relationship between the disc and the contact, so that the piston moves, and this movement is flexible; the contact And the hydraulic cylinder can be designed separately to cooperate with the existing calipers, with high adaptability, compact and simple structure, light weight, safe and reliable use; effectively solves the anti-lock problem of bicycle hydraulic disc brakes; the braking process is flexible , the brake is safer and more reliable, the design is flexible, the contact and the hydraulic cylinder can be made separately, and they can directly work with existing products.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Figure 2 is an enlarged view of the connection between the caliper and the hydraulic cylinder.

detailed description

Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The description of the exemplary embodiments is for the purpose of illustration only, and in no way limits the invention and its application or usage.

As shown in Figures 1 and 2, a bicycle anti-lock hydraulic disc brake device includes a disc 1. The disc 1 is a disc with a continuous shape on the outer edge. The caliper 2 is provided with a plurality of sets of relative pistons 3 in the caliper 2, and brake pads are fixed on the pistons 3, and the brake pads on each set of relative pistons 3 are located on both sides of the disc 1, under the action of oil pressure The brake pad on the lower piston 3 squeezes the friction disc 1, and a support shrapnel is also provided on the side of the piston 3, and a hydraulic cylinder 4 is also included. The lower end of the hydraulic cylinder 4 is threadedly connected with the caliper 2. There is an oil pipe 5 inside, and the oil pipe 5, the hydraulic cylinder 4 and the caliper 2 are filled with hydraulic oil, and a contact channel is provided at the lower end of the hydraulic cylinder 4, and a contact 6 is arranged in the contact channel, and the contact 6 and the contact The head channel is in close contact, the lower end of the contact 6 protrudes from the hydraulic cylinder 4 and is located on the top of the disc 1, and the contact 6 contacts the disc 1 and squeezes the disc 1 under the action of oil pressure.

The disc with a continuous outer edge is a disc with a continuous corrugated or serrated outer edge.

Although the present invention has been described with reference to exemplary embodiments, it should be understood that the present invention is not limited to the specific embodiments described and shown in detail herein, and that it is possible for those skilled in the art to do so without departing from the scope defined by the claims. Personnel can make various modifications or improvements to the exemplary embodiments.

Claims (2)

1. An anti-lock hydraulic disc brake device for bicycles, characterized in that: it includes a disc, the disc is a disc with a continuous shape on the outer edge, and a caliper is arranged on the outside of the disc, inside the caliper There are multiple sets of oppositely arranged pistons, and brake pads are fixed on the pistons. The brake pads on each set of oppositely arranged pistons are located on both sides of the disc. Under the action of oil pressure, the brake pads on the pistons squeeze the friction disc. , a support shrapnel is also provided on the side of the piston, and a hydraulic cylinder is also included. The lower end of the hydraulic cylinder is threadedly connected with the caliper, and an oil pipe is arranged in the hydraulic cylinder, and the oil pipe, the hydraulic cylinder and the caliper are filled with hydraulic oil. The lower end of the hydraulic cylinder is also provided with a contact channel, and a contact is arranged in the contact channel. The contact is in close contact with the contact channel. The lower end of the contact protrudes from the hydraulic cylinder and is located on the disc. Under the action of contact with the disc and squeeze the disc. 2. An anti-lock hydraulic disc brake device for bicycles according to claim 1, characterized in that: the disc with a continuous outer edge is a disc with a continuous corrugated or serrated outer edge .