Disc brake calipers with hidden center line of bicycle

Abstract

The utility model relates to the technical field of bicycle brake devices, in particular to bicycle center line hidden type disc brake calipers which comprise a calipers body, a fixing screw hole is formed in the top of the calipers body, a connecting hole is formed in one side of the outer surface of the calipers body, an oil discharge hole is formed in one side of the outer surface of the calipers body, and the oil discharge hole is communicated with the fixing screw hole. A rotation stopping screw hole is formed in one side of the top of the caliper body, a fixing base is arranged at the bottom of the outer surface of the caliper body, brake structures are installed on the two sides of the interior of the caliper body, after pipelines are connected through connecting holes, a brake point of a brake pad is completely perpendicular to the center line of a disc, and when observed from the front side face of a vehicle frame, the brake pad is completely perpendicular to the disc center line. The caliper body is completely hidden in the rear lower fork of the frame, and the side face visual effect is excellent.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycle brake devices, in particular to a bicycle centerline hidden disc brake caliper. Background Art

[0002] Disc brakes are sometimes called disc brakes. They are divided into ordinary disc brakes and ventilated disc brakes. Ventilated disc brakes have many circular ventilation holes drilled on the disc surface, or ventilation grooves cut on the end surface of the disc or prefabricated rectangular ventilation holes. Ventilated disc brakes use the effect of wind flow to achieve better cooling and heating effects than ordinary disc brakes.

[0003] There are three existing bicycle disc brake installation standards: ISO, post mount, and flat mount. The three assembly methods have developed in chronological order. ISO is the oldest and is based on the design of metal frame welding technology. With the emergence of composite frames, this single-piece disc brake seat is too thin, the force is too concentrated, and the structure is unreasonable. In addition, the existing calipers cannot be installed directly and need to be installed with a conversion plate. The subsequent direct-mount disc brake, as the name suggests, has the caliper directly fixed to the mounting seat without the need for a conversion plate. This design is based on the demand for large mountain bike discs with a disc size of 160-200mm+, resulting in a larger installation interface size. The larger two-point distance requires additional support design for the rear triangle of the frame. The caliper size is large, and the finished product is slightly higher than other specifications. In 2015 Later, with the popularity of disc brakes on road bicycles and racing bicycles, small-sized discs (140-160mm) are required. The flat-mount disc brake installation interface launched by Shimano is more compact than the previous two, and the caliper is more aerodynamic after assembly. Since the installation fixing screws are at the bottom of the frame, the caliper adjustment is more troublesome than the previous two. The installation interface interferes with the frame over a large area, and it is necessary to completely penetrate to destroy the original frame pipe structure. For metal frames, processing, production, and welding tolerances are required to be higher, and frame correction is more troublesome. Based on the deficiencies in the existing technology, the utility model designs a bicycle centerline hidden disc brake caliper. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a bicycle centerline hidden disc brake caliper, which has the advantages of completely hiding the pipeline and the caliper body hidden in the rear chain fork of the frame, and having the best side visual effect.

[0005] The utility model provides the following technical solution: a bicycle centerline hidden disc brake caliper, comprising a caliper body, a fixing screw hole is opened on the top of the caliper body, a connecting hole is opened on one side of the outer surface of the caliper body, and an oil drain hole is opened on one side of the outer surface of the caliper body.

[0006] As a preferred technical solution of the utility model, a locking screw hole is provided on one side of the top of the caliper body.

[0007] As a preferred technical solution of the utility model, a fixing seat is arranged at the bottom of the outer surface of the caliper body.

[0008] As a preferred technical solution of the utility model, brake structures are installed on both sides of the interior of the caliper body.

[0009] As a preferred technical solution of the utility model, the brake structure includes two fixing sleeves, and the two fixing sleeves are fixedly connected to the caliper body.

[0010] As a preferred technical solution of the utility model, side plates are arranged inside the two fixing sleeves, and the two side plates are arranged inside the caliper body.

[0011] As a preferred technical solution of the utility model, a brake pad is installed on one side of the two side panels.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. This bicycle centerline hidden disc brake caliper, after the pipeline is connected through the connection hole, the braking point of the brake pad is completely perpendicular to the centerline of the disc. When viewed from the front side of the frame, the caliper body is completely hidden in the rear chainstay of the frame, and the side visual effect is excellent;

[0014] 2. This bicycle centerline hidden disc brake caliper has the best aerodynamics through the caliper body. Compared with other installation methods, the caliper body will hardly generate wind resistance. CFD calculation shows that 100 km can save W per hour of riding.

[0015] 3. The centerline hidden disc brake caliper of the bicycle does not occupy the upper end of the rear seat fork of the frame because the mounting structure of the caliper body does not occupy the position of the upper end of the rear seat fork of the frame, so the rear triangle of the entire frame can achieve the ultimate aerodynamic shape without considering the avoidance problem of the caliper;

[0016] 4. This bicycle centerline hidden disc brake caliper has a more compact design for the caliper body and installation interface, and its overall weight is reduced by % compared to the traditional one;

[0017] 5. The bicycle centerline hidden disc brake caliper is convenient for adjusting the position of the caliper by fastening with a single screw in a fixed screw hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the appearance structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the connection hole structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the oil drain hole structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the brake structure of the utility model.

[0022] In the figure: 1. caliper body; 2. fixing screw hole; 3. anti-rotation screw hole; 4. oil drain hole; 5. brake structure; 51. fixing sleeve; 52. side plate; 53. brake pad; 6. fixing seat; 7. connecting hole. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 A bicycle centerline hidden disc brake caliper comprises a caliper body 1, a fixing screw hole 2 is provided on the top of the caliper body 1, a connecting hole 7 is provided on one side of the outer surface of the caliper body 1, and an oil drain hole 4 is provided on one side of the outer surface of the caliper body 1.

[0025] See also Figure 1-3 A locking screw hole 3 is provided on one side of the top of the caliper body 1. A fixing seat 6 is provided on the bottom of the outer surface of the caliper body 1.

[0026] The caliper body 1 can be fixed on the rear lower fork of the frame by bolts through the fixing screw hole 2 and the fixing seat 6.

[0027] See also Figure 3-4 , brake structures 5 are installed on both sides of the interior of the caliper body 1. The brake structure 5 includes two fixing sleeves 51, and the two fixing sleeves 51 are fixedly connected to the caliper body 1. Side plates 52 are arranged inside the two fixing sleeves 51, and the two side plates 52 are arranged inside the caliper body 1. Brake pads 53 are installed on one side of the two side plates 52.

[0028] After the pipeline is connected to the connection hole 7, when the rider presses the brake, the brake fluid squeezes one of the brake pads 53, thereby clamping the brake disc.

[0029] Working principle: when a bicycle centerline hidden disc brake caliper is used, in the initial state, the caliper body 1 can be fixed to the rear chainstay of the frame by bolts through the fixing screw hole 2 and the fixing seat 6. At this time, the braking point of the brake pad is completely perpendicular to the centerline of the disc. When observed from the front side of the frame, the caliper body 1 is completely hidden in the rear chainstay of the frame, and the side visual effect is excellent. Moreover, since the installation structure of the caliper body 1 does not occupy the position of the upper end of the rear chainstay of the frame, the entire rear triangle of the frame can achieve the ultimate aerodynamic shape without considering the avoidance problem of the caliper. When the rider presses the brake, the brake oil squeezes one of the brake pads 53, thereby clamping the brake disc. At the same time, the caliper body 1 has the best aerodynamics itself. Compared with the other three installation methods, the caliper body 1 will hardly generate wind resistance. CFD calculation shows that 20W can be saved when riding 50km at 30km per hour.

[0030] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bicycle centerline hidden disc brake caliper, comprising a caliper body (1), characterized in that: A fixing screw hole (2) is provided on the top of the caliper body (1), a connecting hole (7) is provided on one side of the outer surface of the caliper body (1), and an oil drain hole (4) is provided on one side of the outer surface of the caliper body (1).

2. A bicycle centerline hidden disc brake caliper according to claim 1, characterized in that: A locking screw hole (3) is provided on one side of the top of the caliper body (1).

3. The bicycle centerline hidden disc brake caliper according to claim 1, characterized in that: A fixing seat (6) is provided at the bottom of the outer surface of the caliper body (1).

4. The bicycle centerline hidden disc brake caliper according to claim 1, characterized in that: Braking structures (5) are installed on both sides of the interior of the caliper body (1).

5. The bicycle centerline hidden disc brake caliper according to claim 4, characterized in that: The brake structure (5) comprises two fixing sleeves (51), and the two fixing sleeves (51) are fixedly connected to the caliper body (1).

6. The bicycle centerline hidden disc brake caliper according to claim 5, characterized in that: Side plates (52) are arranged inside the two fixing sleeves (51), and the two side plates (52) are arranged inside the caliper body (1).

7. The bicycle centerline hidden disc brake caliper according to claim 6, characterized in that: A brake pad (53) is installed on one side of the two side plates (52).

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