Caliper mounting structure, frame tail hook, caliper structure, brake caliper and bicycle

Abstract

The utility model relates to a caliper installation structure, a frame tail hook, a caliper structure, a brake caliper and a bicycle, the caliper installation structure comprises an installation main body and a first installation hole, the upper end face of the installation main body does not protrude out of the upper end face of the tail hook structure, and the lower end face of the installation main body does not protrude out of the lower end face of the tail hook structure. The caliper structure has the advantages that the position of the caliper structure can be adjusted through the single kidney-shaped first mounting hole, so that the caliper structure can adapt to caliper structures of different specifications, the adjusting steps are greatly reduced, the adjusting time is greatly shortened, and the adjusting efficiency is improved; the upper end face and the lower end face of the installation body do not protrude out of the upper end face and the lower end face of the tail hook structure, so that after the caliper structure is installed, the caliper structure does not protrude out of the tail hook structure as well, the hidden effect is achieved, resistance can be reduced, and aerodynamics is met.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycles, in particular to a caliper mounting structure, a frame dropout, a caliper structure, a brake caliper and a bicycle. Background Art

[0002] There are three existing installation standards for bicycle disc brakes: ISO, post mount, and flat mount. These three installation standards have developed over time. The earliest installation standard is ISO, which is designed based on the metal frame welding process. However, with the emergence of composite material frames, this single-piece disc brake seat appears to be too thin, the stress is too concentrated, the structure is unreasonable, and existing calipers cannot be directly installed and all require the installation of adapter plates.

[0003] Subsequently, the post mount disc brake, as the name implies, directly fixes the caliper to the mounting seat without the need for an adapter plate. This design is based on the requirements of large disc brakes for mountain bikes with disc sizes of 160 - 200mm +, resulting in a larger installation interface size. The large distance between the two points requires additional support design for the rear triangle of the frame. The caliper size is large, and the production cost is slightly higher than other specifications.

[0004] After 2015, with the popularization of disc brakes in road bicycles and racing bicycles, the requirement is to use small-sized disc brakes (140 - 160mm). The flat mount disc brake introduced by Shimano has a more compact installation interface than the previous two, and the assembled caliper is more aerodynamic. However, since the installation and 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 requires complete penetration to damage the original frame pipe structure. For metal material frames, higher tolerance requirements are needed for processing, production, and welding, and frame correction is more troublesome.

[0005] Currently, no effective solutions have been proposed for the problems in the related art such as cumbersome installation, damage to the original frame pipe structure, and high processing difficulty. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a caliper mounting structure, a frame dropout, a caliper structure, a brake caliper and a bicycle for the deficiencies in the existing technology, so as to solve the problems in the related art such as cumbersome installation, damage to the original frame pipe structure, and high processing difficulty.

[0007] To achieve the above purpose, the technical solution adopted by the utility model is:

[0008] In the first aspect, a caliper mounting structure is provided, which is installed on a bicycle and includes:

[0009] An installation body is disposed inside the tail hook structure. A caliper structure is detachably disposed on the upper part of the installation body. The upper end face of the installation body does not protrude beyond the upper end face of the tail hook structure, and the lower end face of the installation body does not protrude beyond the lower end face of the tail hook structure.

[0010] A first installation hole penetrates through the installation body and is detachably connected to a locking structure for locking the locking structure and the caliper structure.

[0011] In some embodiments, the caliper installation structure further includes:

[0012] A second installation hole is disposed on the lower end face of the installation body and is coaxially arranged with the first installation hole.

[0013] In some embodiments, the outer edge surface of the installation body is an arc surface.

[0014] In some embodiments, the length of the front end of the installation body is less than the length of the rear end of the installation body.

[0015] In some embodiments, the thickness of the installation body is less than the thickness of the tail hook structure.

[0016] In some embodiments, the first installation hole is an oval hole.

[0017] In some embodiments, the second installation hole is an oval hole.

[0018] In a second aspect, a frame tail hook is provided, including:

[0019] A tail hook structure, the front end of the tail hook structure is connected to the rear lower fork of the frame, and the rear end of the tail hook structure is connected to the rear wheel set;

[0020] The caliper installation structure as described in the first aspect is disposed inside the front end of the tail hook structure. The upper end face of the caliper installation structure does not protrude beyond the upper end face of the tail hook structure, and the lower end face of the caliper installation structure does not protrude beyond the lower end face of the tail hook structure.

[0021] In a third aspect, a caliper structure is provided, including:

[0022] A caliper body is detachably disposed on the upper end face of the installation body of the caliper installation structure as described in the first aspect;

[0023] A third mounting hole, which penetrates through the caliper body and corresponds to the first mounting hole of the caliper mounting structure, and is detachably connected to the locking structure, and the upper end surface of the caliper body does not protrude beyond the upper end surface of the tail hook structure;

[0024] An anti-rotation hole, which penetrates through the caliper body and is connected to the anti-rotation structure for preventing the caliper body from rotating.

[0025] In some embodiments, the caliper structure further includes:

[0026] A mounting cavity, which penetrates through the caliper body for mounting a piston, an oil seal, a brake lining, and an oil seal cover;

[0027] An oil inlet hole, which is provided on the caliper body and communicates with the mounting cavity for supplying brake fluid into the mounting cavity;

[0028] An oil drain hole, which is provided on the caliper body and communicates with the mounting cavity for draining brake fluid out of the mounting cavity.

[0029] Fourth aspect, there is provided a brake caliper, including:

[0030] The caliper structure as described in the third aspect;

[0031] A piston structure, which is arranged inside the caliper structure and is used for reciprocating motion along the axial direction of the piston structure under an external force;

[0032] A brake pad structure, which is arranged inside the caliper structure and is located on both sides of the brake disc structure and is connected to the piston structure for clamping or releasing the brake disc structure under the action of the piston structure;

[0033] An oil seal structure, which is arranged inside the caliper structure and abuts against the caliper structure and the piston structure respectively for preventing brake fluid leakage;

[0034] A sealing cover structure, which is arranged on the side of the caliper structure and is detachably connected to the caliper structure for sealing the caliper structure to prevent brake fluid leakage.

[0035] In some embodiments, the piston structure includes:

[0036] Two pistons, which are symmetrically arranged inside the caliper structure and are respectively connected to the brake pad structure and the oil seal structure for reciprocating motion along the axial direction of the piston under an external force.

[0037] In some of these embodiments, the brake pad structure includes:

[0038] Two brake pads, which are symmetrically arranged inside the caliper structure, are respectively located on both sides of the brake disc structure, and are respectively connected to the piston structure, and are used to clamp or release the brake disc structure under the action of the piston structure.

[0039] In some of these embodiments, the oil seal structure includes:

[0040] Two oil seal rings, which are symmetrically arranged inside the caliper structure, and are respectively in contact with the caliper structure and the piston structure, and are used to prevent brake fluid leakage.

[0041] In a fifth aspect, there is provided a bicycle, including:

[0042] The caliper mounting structure as described in the first aspect.

[0043] In a sixth aspect, there is provided a bicycle, including:

[0044] The caliper mounting structure as described in the first aspect;

[0045] The caliper structure as described in the third aspect.

[0046] In a seventh aspect, there is provided a bicycle, including:

[0047] The caliper mounting structure as described in the first aspect;

[0048] The brake caliper as described in the fourth aspect.

[0049] In an eighth aspect, there is provided a bicycle, including:

[0050] The frame dropout as described in the second aspect.

[0051] In a ninth aspect, there is provided a bicycle, including:

[0052] The frame dropout as described in the second aspect;

[0053] The caliper structure as described in the third aspect.

[0054] In a tenth aspect, there is provided a bicycle, including:

[0055] The frame dropout as described in the second aspect;

[0056] The brake caliper as described in the fourth aspect.

[0057] In some of these embodiments, the bicycle further includes:

[0058] Brake disc structure, the brake disc structure is arranged at the rear end of the frame seat stay and corresponds to the brake caliper.

[0059] In some embodiments, the bicycle further includes:

[0060] Rear lower fork of the frame, the rear end of the rear lower fork of the frame is connected to the front end of the frame seat stay.

[0061] In some embodiments, the bicycle further includes:

[0062] Rear wheel set, the rear wheel set is connected to the rear end of the frame seat stay.

[0063] The present utility model adopts the above technical solutions, compared with the prior art, has the following technical effects:

[0064] For the caliper mounting structure, frame seat stay, caliper structure, brake caliper and bicycle of the present utility model, by using a single first mounting hole in the shape of a kidney-shaped hole, the position of the caliper structure can be adjusted, so as to adapt to caliper structures of different specifications, greatly reducing the adjustment steps and adjustment time and improving the adjustment efficiency; the upper and lower end faces of the mounting body do not protrude from the upper and lower end faces of the seat stay structure, so that after the caliper structure is installed, the caliper structure also does not protrude from the seat stay structure, presenting a hidden effect and reducing resistance, which conforms to aerodynamics. Description of the Drawings

[0065] Figure 1 is a schematic diagram (one) of the caliper mounting structure according to an embodiment of the present utility model;

[0066] Figure 2 is a schematic diagram (two) of the caliper mounting structure according to an embodiment of the present utility model;

[0067] Figure 3 is a schematic diagram (one) of the frame seat stay according to an embodiment of the present utility model;

[0068] Figure 4 is a schematic diagram (two) of the frame seat stay according to an embodiment of the present utility model;

[0069] Figure 5 is a schematic diagram (one) of the caliper structure according to an embodiment of the present utility model;

[0070] Figure 6 is a schematic diagram (two) of the caliper structure according to an embodiment of the present utility model;

[0071] Figure 7 is a sectional view of the caliper structure according to an embodiment of the present utility model;

[0072] Figure 8 is a schematic diagram (one) of the brake caliper according to an embodiment of the present utility model;

[0073] Figure 9 It is a schematic diagram (II) of a brake caliper according to an embodiment of the present utility model;

[0074] Figure 10 It is a sectional view of a brake caliper according to an embodiment of the present utility model;

[0075] Figure 11 It is a schematic diagram (I) of a bicycle according to an embodiment of the present utility model;

[0076] Figure 12 It is a schematic diagram (II) of a bicycle according to an embodiment of the present utility model;

[0077] Figure 13 It is a schematic diagram (III) of a bicycle according to an embodiment of the present utility model.

[0078] The reference numerals therein are: 100, caliper mounting structure; 101, mounting main body; 102, first mounting hole; 103, second mounting hole;

[0079] 200, tail hook structure;

[0080] 300, caliper structure; 301, caliper main body; 302, third mounting hole; 303, anti-rotation hole; 304, mounting cavity; 305, oil inlet hole; 306, oil drain hole;

[0081] 400, piston structure; 401, piston;

[0082] 500, brake pad structure; 501, brake pad;

[0083] 600, oil seal structure; 601, oil seal ring;

[0084] 700, sealing cover structure. Detailed implementation manners

[0085] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0086] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments may be combined with each other.

[0087] Next, the present utility model will be further described in conjunction with the accompanying drawings and specific embodiments, but it is not a limitation of the present utility model.

[0088] Example 1

[0089] This example relates to the caliper mounting structure of the present utility model.

[0090] A schematic embodiment of the present utility model, as Figures 1 to 3 shown, a caliper mounting structure 100, installed on a bicycle, includes a mounting body 101 and a first mounting hole 102. Among them, the mounting body 101 is arranged inside the derailleur hanger structure. The upper part of the mounting body 101 is detachably provided with a caliper structure. The upper end surface of the mounting body 101 does not protrude beyond the upper end surface of the derailleur hanger structure, and the lower end surface of the mounting body 101 does not protrude beyond the lower end surface of the derailleur hanger structure; the first mounting hole 102 penetrates through the mounting body 101 and is detachably connected to the locking structure for the locking structure to lock with the caliper structure.

[0091] In some of these embodiments, the locking structure includes, but is not limited to, a locking bolt.

[0092] Generally, the upper end surface of the mounting body 101 is a flat surface, and the lower end surface of the mounting body 101 is an arc surface.

[0093] In some of these embodiments, the outer edge surface of the mounting body 101 is an arc surface.

[0094] In some of these embodiments, the length of the front end of the mounting body 101 is less than the length of the rear end of the mounting body 101.

[0095] Preferably, the length of the mounting body 101 increases from its front end to its rear end.

[0096] In some of these embodiments, the thickness of the mounting body 101 is less than the thickness of the derailleur hanger structure.

[0097] Preferably, the thickness of the mounting body 101 is 1 / 4 to 2 / 3 of the thickness of the derailleur hanger structure. More preferably, the thickness of the mounting body 101 is 1 / 3 to 1 / 2 of the thickness of the derailleur hanger structure.

[0098] The size of the first mounting hole 102 matches the size of the mounting body 101. Generally, the radial size (such as outer diameter, length, width, etc.) of the first mounting hole 102 is less than the radial size (such as outer diameter, length, width, etc.) of the mounting body 101, and the axial size (such as depth) of the first mounting hole 102 is equal to the thickness of the mounting body 101.

[0099] In some of these embodiments, the first mounting hole 102 is an oval hole.

[0100] Further, the caliper mounting structure 100 further includes a second mounting hole 103, which is disposed on the lower end face of the mounting body 101 and is coaxially arranged with the first mounting hole 102.

[0101] The size of the second mounting hole 103 matches the size of the first mounting hole 102. Generally, the radial dimension (such as outer diameter, length, width) of the second mounting hole 103 is larger than that of the first mounting hole 102, and the axial dimension (such as depth) of the second mounting hole 103 is smaller than that of the first mounting hole 102.

[0102] In some embodiments, the second mounting hole 103 is an oval hole.

[0103] The advantages of the present utility model are as follows: by using a single first mounting hole in the shape of an oval hole, the position of the caliper structure can be adjusted to adapt to different specifications of the caliper structure, greatly reducing the adjustment steps and adjustment time and improving the adjustment efficiency; the upper and lower end faces of the mounting body do not protrude beyond the upper and lower end faces of the tail hook structure, so that after the caliper structure is installed, the caliper structure also does not protrude beyond the tail hook structure, presenting a hidden effect and reducing resistance, which conforms to aerodynamics.

[0104] Embodiment 2

[0105] This embodiment relates to the frame tail hook of the present utility model.

[0106] A schematic embodiment of the present utility model, as Figure 3 shown, a frame tail hook includes a tail hook structure 200 and the caliper mounting structure 100 as described in Embodiment 1. Among them, the front end of the tail hook structure 200 is connected to the rear lower fork of the frame, and the rear end of the tail hook structure 200 is connected to the rear wheel set; the caliper mounting structure 100 is disposed inside the front end of the tail hook structure 200, the upper end face of the caliper mounting structure 100 does not protrude beyond the upper end face of the tail hook structure 200, and the lower end face of the caliper mounting structure 100 does not protrude beyond the lower end face of the tail hook structure 200.

[0107] Generally, the caliper mounting structure 100 and the tail hook structure 200 are integrally formed.

[0108] Among them, the inner side of the tail hook structure 200 refers to the side of the tail hook structure 200 close to the rear wheel set.

[0109] The size of the tail hook structure 200 matches the size of the caliper mounting structure 100. Generally, the thickness of the tail hook structure 200 is greater than that of the caliper mounting structure 100 (mounting body 101), the length of the tail hook structure 200 is greater than the width of the caliper mounting structure 100 (mounting body 101), and the width of the tail hook structure 200 is smaller than the length of the caliper mounting structure 100 (mounting body 101).

[0110] The technical effect of this embodiment is the same as that of Embodiment 1, and will not be elaborated here.

[0111] Embodiment 3

[0112] This embodiment relates to the caliper structure of the present utility model.

[0113] A schematic embodiment of the present utility model, as Figures 4 to 6 shown, a caliper structure 300 includes a caliper body 301, a third mounting hole 302, and an anti-rotation hole 303. Among them, the caliper body 301 is detachably disposed on the upper end surface of the mounting body 101 of the caliper mounting structure 100 as described in Embodiment 1; the third mounting hole 302 penetrates through the caliper body 301 and corresponds to the first mounting hole 102 of the caliper mounting structure 100, and is detachably connected to the locking structure, and the upper end surface of the caliper body 301 does not protrude beyond the upper end surface of the tail hook structure 200; the anti-rotation hole 303 penetrates through the caliper body 301 and is connected to the anti-rotation structure for preventing the caliper body 301 from rotating.

[0114] Generally, the bottom end or side end of the anti-rotation structure abuts against the mounting body 101.

[0115] In some of these embodiments, the anti-rotation structure includes, but is not limited to, an anti-rotation bolt.

[0116] In some of these embodiments, the caliper body 301 includes a caliper base member and a caliper mounting member. Among them, the caliper base member is detachably disposed on the upper end surface of the mounting body 101, and the upper end surface of the caliper base member does not protrude beyond the upper end surface of the tail hook structure 200; the caliper mounting member is disposed at the rear end of the caliper base member (i.e., the end close to the brake disc structure) for mounting the piston structure, the brake pad structure, the oil seal structure, and the seal cover structure.

[0117] The third mounting hole 302 penetrates through the caliper base member.

[0118] The size of the third mounting hole 302 matches the size of the caliper base member. Generally, the radial dimension (such as the outer diameter) of the third mounting hole 302 is smaller than the radial dimension (such as the length, width, etc.) of the caliper base member, and the axial dimension (such as the depth) of the third mounting hole 302 is equal to the thickness of the caliper base member.

[0119] The size of the third mounting hole 302 matches the size of the first mounting hole 102. Generally, the radial dimension (such as the outer diameter) of the third mounting hole 302 is not greater than the radial dimension (such as the outer diameter, length, width, etc.) of the first mounting hole 102. Preferably, the radial dimension of the third mounting hole 302 is equal to the minimum radial dimension of the first mounting hole 102 and smaller than the maximum radial dimension of the first mounting hole 102.

[0120] In some of these embodiments, the third mounting hole 302 is a threaded hole.

[0121] The anti-rotation hole 303 is provided on the side of the third mounting hole 302 and is close to the rear wheel set.

[0122] The size of the anti-rotation hole 303 matches the size of the caliper base member. Generally, the radial dimension (such as the outer diameter) of the anti-rotation hole 303 is smaller than the radial dimension (such as the length, width, etc.) of the caliper base member, and the axial dimension (such as the depth) of the anti-rotation hole 303 is equal to the thickness of the caliper base member.

[0123] In some of these embodiments, the anti-rotation hole 303 is a threaded hole.

[0124] Furthermore, the caliper structure 300 further includes an installation cavity 304, an oil inlet hole 305, and an oil drain hole 306. Among them, the installation cavity 304 runs through the caliper body 301 and is used for installing pistons, oil seals, brake pads, and oil seal covers; the oil inlet hole 305 is provided on the caliper body 301 and communicates with the installation cavity 304 for allowing brake fluid to enter the installation cavity 304; the oil drain hole 306 is provided on the caliper body 301 and communicates with the installation cavity 304 for allowing brake fluid to drain out of the installation cavity 304.

[0125] Specifically, the installation cavity 304 is provided in the caliper mounting member and runs through the side of the caliper mounting member; the oil inlet hole 305 is provided at the front end of the caliper base member; the oil drain hole 306 is provided at the side end of the caliper base member and is close to the rear wheel set.

[0126] In some of these embodiments, the installation cavity 304 includes two first installation cavities, two second installation cavities, two third installation cavities, a fourth installation cavity, and a fifth installation cavity. Among them, the two first installation cavities are symmetrically provided inside the caliper mounting member and are connected to the piston structure for installing the piston structure; the two second installation cavities are symmetrically provided inside the caliper mounting member, are respectively communicated with the corresponding first installation cavities, and are respectively connected to the oil seal structure for installing the oil seal structure; the two third installation cavities are symmetrically provided inside the caliper mounting member, are respectively communicated with the corresponding first installation cavities, and are respectively connected to the brake pad structure for installing the brake pad structure; the fourth installation cavity is provided between the two third installation cavities and runs through the caliper mounting member for accommodating the brake disc structure; the fifth installation cavity runs through the side of the caliper mounting member, is communicated with a first installation cavity, and is connected to the seal cover structure for installing the seal cover structure.

[0127] Specifically, for the caliper mounting member, from the end away from the rear wheel set to the end close to the rear wheel set, they are successively the first installation cavity, the second installation cavity, the third installation cavity, the fourth installation cavity, the third installation cavity, the second installation cavity, the first installation cavity, and the fifth installation cavity.

[0128] The size of the first mounting cavity matches the size of the caliper mounting part. Generally, the radial dimension (such as diameter) of the first mounting cavity is smaller than the radial dimension (such as diameter) of the caliper mounting part, and the axial dimension (depth) of the first mounting cavity is smaller than the axial dimension (such as length) of the caliper mounting part.

[0129] The size of the second mounting cavity matches the size of the caliper mounting part. Generally, the radial dimension (such as diameter) of the second mounting cavity is smaller than the radial dimension (such as diameter) of the caliper mounting part, and the axial dimension (depth) of the second mounting cavity is smaller than the axial dimension (such as length) of the caliper mounting part.

[0130] The size of the second mounting cavity matches the size of the first mounting cavity. Generally, the radial dimension (such as diameter) of the second mounting cavity is larger than the radial dimension (such as diameter) of the first mounting cavity, and the axial dimension (depth) of the second mounting cavity is smaller than the axial dimension (such as depth) of the first mounting cavity.

[0131] The size of the third mounting cavity matches the size of the caliper mounting part. Generally, the radial dimension (such as diameter) of the third mounting cavity is smaller than the radial dimension (such as diameter) of the caliper mounting part, and the axial dimension (depth) of the third mounting cavity is smaller than the axial dimension (such as length) of the caliper mounting part.

[0132] The size of the third mounting cavity matches the size of the first mounting cavity. Generally, the radial dimension (such as diameter) of the third mounting cavity is larger than the radial dimension (such as diameter) of the first mounting cavity.

[0133] The size of the fourth mounting cavity matches the size of the caliper mounting part. Generally, the radial dimension (such as diameter) of the fourth mounting cavity is equal to the radial dimension (such as diameter) of the caliper mounting part, and the axial dimension (depth) of the fourth mounting cavity is smaller than the axial dimension (such as length) of the caliper mounting part.

[0134] The size of the fifth mounting cavity matches the size of the caliper mounting part. Generally, the radial dimension (such as diameter) of the fifth mounting cavity is equal to the radial dimension (such as diameter) of the caliper mounting part, and the axial dimension (depth) of the fifth mounting cavity is smaller than the axial dimension (such as length) of the caliper mounting part.

[0135] The size of the fifth mounting cavity matches the size of the first mounting cavity. Generally, the radial dimension (such as diameter) of the fifth mounting cavity is smaller than the radial dimension (such as diameter) of the first mounting cavity.

[0136] The oil inlet hole 305 communicates with the first mounting cavity away from the rear wheel set.

[0137] In some of these embodiments, the oil inlet hole 305 is a threaded hole.

[0138] The oil drain hole 306 communicates with the first mounting cavity close to the rear wheel set.

[0139] In some of these embodiments, the oil drain hole 306 is a threaded hole.

[0140] The advantages of this embodiment are as follows: The caliper body can be mounted on the caliper mounting structure by using a single third mounting hole, which greatly reduces the adjustment steps and adjustment time and improves the adjustment efficiency; the anti-rotation hole and the third mounting hole are used in cooperation to effectively prevent the caliper body from rotating; after the caliper body and the caliper mounting structure are assembled, the upper end surface of the caliper body does not protrude from the tail hook structure, presenting a hidden effect and reducing resistance, which conforms to aerodynamics.

[0141] Embodiment 4

[0142] This embodiment relates to a brake caliper of the present invention.

[0143] A schematic embodiment of the present invention is as Figures 8 to 10 shown. A brake caliper includes a caliper structure 300, a piston structure 400, a brake pad structure 500, an oil seal structure 600, and a sealing cover structure 700 as described in Embodiment 3. Among them, the piston structure 400 is arranged inside the caliper structure 300 and is used for reciprocating motion along the axial direction of the piston structure 400 under the action of an external force; the brake pad structure 500 is arranged inside the caliper structure 300 and is located on both sides of the brake disc structure and is connected to the piston structure 400 and is used for clamping or loosening the brake disc structure under the action of the piston structure 400; the oil seal structure 600 is arranged inside the caliper structure 300 and is respectively in contact with the caliper structure 300 and the piston structure 400 and is used for preventing brake fluid leakage; the sealing cover structure 700 is arranged on the side of the caliper structure 300 and is detachably connected to the caliper structure 300 and is used for sealing the caliper structure 300 to prevent brake fluid leakage.

[0144] Specifically, the piston structure 400 is arranged inside the installation cavity 304; the brake pad structure 500 is arranged inside the installation cavity 304; the oil seal structure 600 is arranged inside the installation cavity 304; the sealing cover structure 700 is arranged at the end of the installation cavity 304.

[0145] In some of these embodiments, the piston structure 400 includes two pistons 401. Among them, the two pistons 401 are symmetrically arranged inside the caliper structure 300 and are respectively connected to the brake pad structure 500 and the oil seal structure 600 and are used for reciprocating motion along the axial direction of the piston 401 under the action of an external force.

[0146] Specifically, the two pistons 401 are respectively arranged inside the corresponding first installation cavities.

[0147] The size of the piston 401 matches the size of the first installation cavity. Generally, the radial dimension (such as the outer diameter) of the piston 401 is not greater than the radial dimension (such as the diameter) of the first installation cavity, and the axial dimension (such as the thickness) of the piston 401 is not greater than the axial dimension (such as the depth) of the first installation cavity.

[0148] In some of these embodiments, the brake pad structure 500 includes two brake pads 501. Among them, the two brake pads 501 are symmetrically arranged inside the caliper structure 300, are respectively located on both sides of the brake disc structure, and are respectively connected to the piston structure 400, and are used to clamp or release the brake disc structure under the action of the piston structure 400.

[0149] Specifically, the two brake pads 501 are respectively arranged inside the corresponding third installation cavity.

[0150] The size of the brake pad 501 matches the size of the third installation cavity. Generally, the radial dimension (such as the outer diameter) of the brake pad 501 is not greater than the radial dimension (such as the diameter) of the third installation cavity, and the axial dimension (such as the thickness) of the brake pad 501 is not less than the axial dimension (such as the depth) of the third installation cavity.

[0151] In some of these embodiments, the oil seal structure 600 includes two oil seal rings 601. Among them, the two oil seal rings 601 are symmetrically arranged inside the caliper structure 300, and are respectively in contact with the caliper structure 300 and the piston structure 400, and are used to prevent brake fluid leakage.

[0152] Specifically, the two oil seal rings 601 are respectively arranged inside the corresponding second installation cavity, and are respectively in contact with the corresponding piston 401.

[0153] The size of the oil seal ring 601 matches the size of the second installation cavity. Generally, the radial dimension (such as the outer diameter) of the oil seal ring 601 is not greater than the radial dimension (such as the diameter) of the second installation cavity, and the axial dimension (such as the thickness) of the oil seal ring 601 is not greater than the axial dimension (such as the depth) of the second installation cavity.

[0154] The size of the oil seal ring 601 matches the size of the piston 401. Generally, the radial dimension (such as the inner diameter) of the oil seal ring 601 is not less than the radial dimension (such as the diameter) of the piston 401, and the axial dimension (such as the thickness) of the oil seal ring 601 is not greater than the axial dimension (such as the depth) of the piston 401.

[0155] The technical effects of this embodiment are basically the same as those of Embodiment 4, and will not be elaborated here.

[0156] Embodiment 5

[0157] This embodiment relates to the bicycle of the present invention.

[0158] A schematic embodiment of the present invention, such asFigures 11 to 13 As shown in the figure, a bicycle includes at least a frame dropout and a brake caliper.

[0159] Among them, the frame dropout at least includes the caliper mounting structure 100 as described in Embodiment 1, or the frame dropout is the frame dropout described in Embodiment 2.

[0160] Among them, the brake caliper at least includes the caliper structure 300 as described in Embodiment 3, or the brake caliper is the brake caliper described in Embodiment 4.

[0161] Furthermore, the bicycle further includes a brake disc structure. Among them, the brake disc structure is arranged at the rear end of the frame dropout and corresponds to the brake caliper.

[0162] Furthermore, the bicycle further includes a rear down tube of the frame. Among them, the rear end of the rear down tube of the frame is connected to the front end of the frame dropout.

[0163] Furthermore, the bicycle further includes a rear wheel set. Among them, the rear wheel set is connected to the rear end of the frame dropout.

[0164] The technical effects of this embodiment are as follows:

[0165] 1) After assembling the brake caliper, the braking point of the brake pad is completely perpendicular to the center line of the brake disc (i.e., the disc). When observing from the front side of the frame, the brake caliper is completely hidden inside the rear down tube of the frame, and the oil pipeline is completely hidden, thus forming a center line hidden disc brake;

[0166] 2) Compared with the other three installation methods, there is almost no projection in front of and on the side of the brake caliper, and almost no wind resistance is generated. Through CFD calculation, 20W can be saved when riding at 50km per hour;

[0167] 3) The caliper mounting structure does not occupy the position at the upper end of the rear upper fork of the frame, and the entire rear triangle of the frame can achieve an extreme aerodynamic shape without considering the problem of the caliper interfering with the rear upper fork of the frame;

[0168] 4) Due to the compact assembly of the caliper mounting structure and the caliper structure, the overall weight is reduced by 20% compared with the traditional one;

[0169] 5) The single-screw fastening structure (i.e., the first mounting hole and the third mounting hole) greatly facilitates the adjustment of the relative positions of the caliper structure and the brake disc structure;

[0170] 6) The first mounting hole does not interfere with the tube structure of the frame itself and does not need to penetrate the rear down tube of the frame, which is particularly friendly to the design and production of metal frames;

[0171] 7) There are problems such as welding or secondary processing of tapping and milling the plane after forming in the traditional 3 installation standards. The utility model has a higher error tolerance through the first mounting hole and has less requirements for production accuracy;

[0172] 8) The installation interface (i.e., the caliper installation structure) is more friendly to the application of 3D metal printing technology.

[0173] The above are only the preferred embodiments of the present utility model, and do not limit the implementation manners and protection scope of the present utility model. For those skilled in the art, it should be realized that all the equivalent replacements and obvious changes made by using the description and illustrations of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A caliper mounting structure, mounted on a bicycle, characterized in that: include: A mounting body, the mounting body being arranged on the inner side of the tail hook structure, a caliper structure being detachably arranged on the upper part of the mounting body, an upper end surface of the mounting body not protruding from the upper end surface of the tail hook structure, and a lower end surface of the mounting body not protruding from the lower end surface of the tail hook structure; A first mounting hole is provided through the mounting body and is detachably connected to the locking structure, so as to allow the locking structure to be locked with the caliper structure.

2. The caliper mounting structure according to claim 1, characterized in that: The outer edge surface of the installation body is an arc-shaped surface; and / or The length of the front end of the installation body is shorter than the length of the rear end of the installation body; and / or The thickness of the installation body is smaller than the thickness of the tail hook structure; and / or The first mounting hole is a waist-shaped hole.

3. The caliper mounting structure according to claim 1 or 2, characterized in that: Also includes: A second mounting hole, wherein the second mounting hole is arranged on the lower end surface of the mounting body and is coaxially arranged with the first mounting hole.

4. The caliper mounting structure according to claim 3, characterized in that: The second mounting hole is a waist-shaped hole.

5. A frame tail hook, characterized in that: include: A tail hook structure, wherein the front end of the tail hook structure is connected to the rear lower fork of the frame, and the rear end of the tail hook structure is connected to the rear wheel assembly; The caliper mounting structure as described in any one of claims 1 to 4, wherein the caliper mounting structure is arranged on the inner side of the front end of the tail hook structure, the upper end surface of the caliper mounting structure does not protrude from the upper end surface of the tail hook structure, and the lower end surface of the caliper mounting structure does not protrude from the lower end surface of the tail hook structure.

6. A caliper structure, characterized in that: include: A caliper body, the caliper body being detachably arranged on the upper end surface of the mounting body of the caliper mounting structure according to any one of claims 1 to 4; a third mounting hole, the third mounting hole being arranged through the caliper body and corresponding to the first mounting hole of the caliper mounting structure and being detachably connected to the locking structure, and the upper end surface of the caliper body does not protrude from the upper end surface of the tail hook structure; A rotation-stop hole is provided through the caliper body and is connected to the rotation-stop structure to prevent the caliper body from rotating.

7. The caliper structure according to claim 6, characterized in that: Also includes: An installation cavity, which is arranged through the caliper body and is used for installing a piston, an oil seal, a brake pad, and an oil seal cover; An oil inlet hole, which is disposed on the caliper body and communicates with the mounting cavity, and is used for supplying brake oil into the mounting cavity; An oil drain hole is provided on the caliper body and communicated with the mounting cavity, and is used for allowing brake oil to be discharged from the mounting cavity.

8. A brake caliper, characterized in that: include: The caliper structure according to any one of claims 6 to 7; A piston structure, the piston structure is arranged inside the caliper structure and is used for reciprocating along the axial direction of the piston structure under the action of an external force; A brake pad structure, which is arranged inside the caliper structure and located on both sides of the brake disc structure and connected to the piston structure, and is used to clamp or loosen the brake disc structure under the action of the piston structure; An oil seal structure, which is arranged inside the caliper structure and abuts against the caliper structure and the piston structure respectively, and is used to prevent brake oil leakage; A sealing cover structure is arranged on the side of the caliper structure and is detachably connected to the caliper structure, and is used to seal the caliper structure to prevent brake oil leakage.

9. The brake caliper according to claim 8, characterized in that: The piston structure comprises: Two pistons, the two pistons are symmetrically arranged inside the caliper structure and are respectively connected to the brake pad structure and the oil seal structure, and are used for reciprocating along the axial direction of the piston under the action of external force; and / or The brake pad structure comprises: Two brake pads, the two brake pads are symmetrically arranged inside the caliper structure and are respectively located on both sides of the brake disc structure, and are respectively connected to the piston structure, and are used to clamp or loosen the brake disc structure under the action of the piston structure; and / or The oil seal structure comprises: Two oil seals are symmetrically arranged inside the caliper structure and respectively abut against the caliper structure and the piston structure to prevent brake oil leakage.

10. A bicycle, characterized in that: include: The caliper mounting structure according to any one of claims 1 to 4; or The caliper mounting structure according to any one of claims 1 to 4; The caliper structure according to any one of claims 6 to 7; or The caliper mounting structure according to any one of claims 1 to 4; The brake caliper according to any one of claims 8 to 9; or The frame tail hook as claimed in claim 5; or The frame tail hook as claimed in claim 5; The caliper structure according to any one of claims 6 to 7; or The frame tail hook as claimed in claim 5; A brake caliper as claimed in any one of claims 8 to 9.

11. The bicycle according to claim 10, characterized in that Also includes: A brake disc structure, which is arranged at the rear end of the frame tail hook and corresponds to the brake caliper; and / or A frame chain stay, the rear end of which is connected to the front end of the frame tail hook; and / or The rear wheel group is connected to the rear end of the tail hook of the frame.

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