Bicycle rear hook assembly

Abstract

The utility model relates to a bicycle rear hook assembly. Comprising a left side rear hook and a right side rear hook which are oppositely arranged, the left side rear hook is L-shaped, a left hook front inserting part is arranged at the front end of the left side rear hook, a left hook rear inserting part is arranged at the rear end of the left side rear hook, the right side rear hook is L-shaped, a right hook front inserting part is arranged at the front end of the right side rear hook, and a right hook rear inserting part is arranged at the rear end of the right side rear hook; a detachable left side shaft piece is mounted below the rear part of the left side rear hook, and a detachable right side shaft piece is mounted below the rear part of the right side rear hook; a left hook mounting groove is formed in the inner side above the rear part of the left rear hook, and a right hook mounting groove is formed in the inner side above the rear part of the right rear hook; a first boss and a second boss which are used for installing a brake assembly are arranged on the top of the left side rear hook, and a threaded installation hole used for installing a speed measuring sensor is formed in the middle of the inner side of the left side rear hook. According to the bicycle rear hook assembly, parts can be replaced so that the bicycle rear hook assembly can be matched with a barrel shaft and quick release at the same time, and the bicycle rear hook assembly has the auxiliary fixing function for various accessories.

Description

Technical Field

[0001] This utility model belongs to the field of bicycle component technology, and in particular relates to a bicycle rear hook assembly. Background Technology

[0002] The bicycle rear hanger assembly is installed at the rear of the bicycle frame to mount and secure the rear wheel and related components, such as the derailleur and brakes. Typically, the rear hanger assembly is welded to the rear of the frame and is not adjustable after installation. Existing bicycle rear hangers have the following drawbacks: First, wheel axles come in two forms: thru-axles and quick-release axles. Thrusters pass through the axle hole of the rear hanger, while quick-release axles usually require a slot on the rear hanger. Therefore, the rear hanger assembly has two basic structural forms, and the existing fixed-structure rear hanger assembly is limited to one of the rear axle mounting methods after being installed on the frame and cannot be changed. Second, bicycle accessories such as rear racks, mudguards, taillights, and speed sensors need to be mounted at the rear of the frame, and existing rear hanger assemblies cannot provide auxiliary mounting and securing for these components, thus offering limited functionality.

[0003] In summary, it is necessary to develop and design the structure of the bicycle rear hook assembly to solve the aforementioned technical problems. Utility Model Content

[0004] The purpose of this utility model is to provide a bicycle rear hook assembly that can replace parts to simultaneously adapt to both thru-axles and quick-release mechanisms, and has auxiliary fixing functions for various accessories.

[0005] The technical solution adopted by this utility model is as follows: a bicycle rear hook assembly, including a left rear hook and a right rear hook arranged opposite to each other. The left rear hook is L-shaped, with a left hook front insertion part at its front end and a left hook rear insertion part at its rear end. The right rear hook is L-shaped, with a right hook front insertion part at its front end and a right hook rear insertion part at its rear end. A detachable left axle is installed below the rear of the left rear hook, and a detachable right axle is installed below the rear of the right rear hook. A left hook mounting groove is provided on the inner side of the upper rear of the left rear hook, and a right hook mounting groove is provided on the inner side of the upper rear of the right rear hook. A first boss and a second boss for mounting a brake assembly are provided on the top of the left rear hook, and a threaded mounting hole for mounting a speed sensor is provided in the middle of the inner side of the left rear hook.

[0006] Preferably, the left and right shaft components are barrel shaft adapters, and each of the left and right shaft components has a shaft hole in the middle.

[0007] Preferably, the left and right shaft components are quick-release fittings, and slots are provided at the bottom of both the left and right shaft components.

[0008] Preferably, a groove is provided on the inner side of the middle part of the right rear hook, a wiring channel communicating with the groove is provided at the front part of the right rear hook and the front insertion part of the right hook, and a wire hole communicating with the groove is provided at the top of the middle part of the right rear hook.

[0009] Preferably, threaded mounting holes are provided on the sidewalls of both the left hook mounting groove and the right hook mounting groove.

[0010] Preferably, a threaded mounting hole is provided at the center of the first boss and the second boss.

[0011] Preferably, two ladder mounting holes are provided in the middle of the left rear hook.

[0012] Preferably, the right-side shaft has a downwardly extending extension, and at the end of the extension is a mounting hole for mounting a transmission.

[0013] The advantages and positive effects of this utility model are:

[0014] This utility model provides a bicycle rear hook assembly. Compared with existing rear hook assemblies, the bicycle rear hook assembly of this utility model has detachable connections between the left axle and the left rear hook, and between the right axle and the right rear hook. This allows for wider compatibility after the left and right rear hooks are welded to the frame, enabling adaptation to either thru-axles or quick-release axles by selecting and replacing the left and right axles. A threaded mounting hole is provided in the center of the inner side of the left rear hook, facilitating the installation of a speed sensor onto the rear hook assembly. This rear hook assembly has a left hook mounting slot on the left rear hook and a right hook mounting slot on the right rear hook. Both slots can be used to mount and secure the bicycle's rear rack and / or mudguards. Even without the rear rack and / or mudguards, a taillight can be installed within the slots. Therefore, this bicycle rear hook assembly provides auxiliary fixing functionality for various accessories. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0016] Figure 2 This is a structural diagram of the first application method of this utility model, showing the installation of a speed sensor and a taillight;

[0017] Figure 3 This is a structural schematic diagram of the first application method of this utility model, showing the installation of a rear coat rack, mudguard, and speed sensor.

[0018] In the picture:

[0019] 1. Left rear hook; 2. Left hook front insertion part; 3. First boss; 4. Second boss; 5. Left hook rear insertion part; 6. Ladder mounting hole; 7. Assembly screw; 8. Left axle; 9. Left hook mounting slot; 10. Right rear hook; 11. Right hook front insertion part; 12. Right hook rear insertion part; 13. Groove; 14. Cable hole; 15. Right axle; 16. Right hook mounting slot; 17. Frame; 18. Speed ​​sensor; 19. Taillight; 20. Brake assembly; 21. Ladder; 22. Rear rack; 23. Mudguard. Detailed Implementation

[0020] To further understand the invention content, features and effects of this utility model, the following embodiments are provided in detail.

[0021] Please see Figure 1 The bicycle rear hook assembly of this utility model includes a left rear hook 1 and a right rear hook 10 arranged opposite to each other. The left rear hook 1 is L-shaped, with a left hook front insertion part 2 at its front end and a left hook rear insertion part 5 at its rear end. The right rear hook 10 is L-shaped, with a right hook front insertion part 11 at its front end and a right hook rear insertion part 12 at its rear end.

[0022] The left hook front connector 2 and left hook rear connector 5, and the right hook front connector 11 and right hook rear connector 12 are used to connect to the frame 17. Please refer to [link / reference]. Figure 2 As can be seen, the left rear hook 1 is installed and fixed at the rear end of the left upright fork and the left horizontal fork of the frame 17, and the right rear hook 10 is installed and fixed at the rear end of the right upright fork and the right horizontal fork of the frame 17. The upright fork and the horizontal fork of the frame 17 are both tubular profiles. Therefore, when welding the rear hook assembly to the frame 17, the left hook front insertion part 2 is inserted into the tubular profile port of the left horizontal fork, the left hook rear insertion part 5 is inserted into the tubular profile port of the left upright fork and welded together, the right hook front insertion part 11 is inserted into the tubular profile port of the right horizontal fork, and the right hook rear insertion part 12 is inserted into the tubular profile port of the right upright fork and welded together.

[0023] The top of the left rear hook 1 is provided with a first boss 3 and a second boss 4 for mounting the brake assembly 20. In this embodiment, a threaded mounting hole is provided in the center of the first boss 3 and the second boss 4. The brake assembly 20 is disposed between the first boss 3 and the second boss 4 and is fixedly connected to the front and rear bosses by two screws. The brake assembly 20 acts on the brake disc and pads mounted on the rear wheel.

[0024] A threaded mounting hole for installing a speed sensor 18 is provided in the middle of the inner side of the left rear hook 1. The speed sensor 18 is fixed to the inner side of the left rear hook 1 with screws. The speed sensor 18 is used to sense the rotation speed of the brake disc on the rear wheel and transmits the rotation speed value to the instrument at the front of the bicycle in a wired or wireless manner.

[0025] In this embodiment, two bicycle ladder mounting holes 6 are provided in the middle of the left rear hook 1 for mounting and fixing the bicycle ladder 21. Figure 3 As shown, a receiving groove for accommodating the ladder 21 can be provided in the lower middle part of the inner side of the left rear hook 1. Two threaded mounting holes are provided on the ladder 21. The ladder mounting hole 6 is a countersunk screw hole. During installation, the upper part of the ladder 21 is placed into the receiving groove inside the rear hook 1. Then, the two screws are tightened from the outside. The nut part of the screw falls into the ladder mounting hole 6, and the inner end of the screw is screwed into the threaded mounting hole on the upper part of the ladder 21.

[0026] A detachable left axle 8 is installed below the rear of the left rear hook 1, and a detachable right axle 15 is installed below the rear of the right rear hook 10. The left axle 8 and the right axle 15 are used to engage with the rear axle and to install and fix the rear axle. In this embodiment, the right axle 15 has a downwardly extending extension, and a mounting hole for mounting a transmission is provided at the end of the extension. The transmission is bolted to the lower end of the extension of the right axle 15.

[0027] like Figure 1 As shown, the left rear hook 1 has two connecting holes at the rear, and the left shaft 8 has two threaded mounting holes at the rear. After the left shaft 8 is connected to the left rear hook 1, an assembly screw 7 is installed from the outside, and the inner end of the assembly screw 7 is screwed into the threaded mounting hole on the left shaft 8. Similarly, the right rear hook 10 has two connecting holes at the rear, and the right shaft 15 has two threaded mounting holes at the rear. After the right shaft 15 is connected to the right rear hook 10, an assembly screw 7 is installed from the outside, and the inner end of the assembly screw 7 is screwed into the threaded mounting hole on the right shaft 15.

[0028] Since the rear axle of the wheel has two specific structural forms: a bucket axle and a quick-release axle, the left rear hook 1 and the right rear hook 10 both have the following two specific structural forms:

[0029] The first structural form: the left shaft 8 and the right shaft 15 are barrel shaft adapters. A shaft hole is provided in the middle of the left shaft 8 and the right shaft 15. The barrel shaft type axle is inserted laterally into the shaft hole of the left shaft 8 and the right shaft 15.

[0030] The second structural form: the left axle 8 and the right axle 15 are quick-release fittings. The bottom of the left axle 8 and the right axle 15 are provided with slots. The quick-release axle is inserted into the slot of the axle from bottom to top and locked. When the quick-release locking relationship is released, the rear wheel can be separated from the frame 17 downwards. Therefore, it is a quick-release structure.

[0031] A groove 13 is provided on the inner side of the middle part of the right rear hook 10. A wiring channel communicating with the groove 13 is provided at the front part of the right rear hook 10 and the front insertion part 11 of the right hook. A wire hole 14 communicating with the groove 13 is provided at the top of the middle part of the right rear hook 10. The aforementioned wiring channel and wire hole 14 are used to thread the gear cable of the derailleur. At this time, the derailleur cable extends from the inside of the right side flat fork of the frame 17. Finally, the derailleur cable passes through the wire hole 14 and connects to the derailleur. This realizes the internal wiring method, improves the simplicity of wiring, and improves the overall simple and beautiful effect of the vehicle.

[0032] A left hook mounting groove 9 is provided on the inner side of the upper rear part of the left rear hook 1, and a right hook mounting groove 16 is provided on the inner side of the upper rear part of the right rear hook 10. In this embodiment, threaded mounting holes are provided on the sidewalls of both the left hook mounting groove 9 and the right hook mounting groove 16. The left hook mounting groove 9 and the right hook mounting groove 16 have the following functions: Figure 2 The diagram shows the installation of the taillight 19, which is a flat taillight 19 embedded in the left hook mounting slot 9 and the right hook mounting slot 16 and fixed with screws. Figure 3 The diagram shows the case where the rear coat hanger 23 and mudguard 22 are installed simultaneously. In this case, the connecting plate at the bottom of the rear coat hanger 23 is embedded in the upper part of the left hook mounting groove 9 and the right hook mounting groove 16 and is fixedly connected with screws. The front end of the bracket of the mudguard 22 is embedded in the lower part of the left hook mounting groove 9 and the right hook mounting groove 16 and is fixedly connected with screws.

[0033] Installation method:

[0034] Weld the left rear hook 1 to the rear end of the left upright fork and left horizontal fork of the frame 17, and weld the right rear hook 10 to the rear end of the right upright fork and right horizontal fork of the frame 17; install the speed sensor 18 on the inside of the left rear hook 1, install the brake assembly 20 on the first boss 3 and the second boss 4 on the top of the left rear hook 1, and install the ladder 21 at the bottom of the left rear hook 1; select a shaft hole type shaft or a slot type shaft according to the specific structure of the selected thru-axle or quick-release, and use assembly screws to install and fix the left shaft 8 and the right shaft 15 to the lower rear of the left rear hook 1 and the right rear hook 10 respectively; then install and fix the derailleur to the lower end of the right shaft 15, and then install the rear wheel;

[0035] When it is necessary to install the rear coat rack 23 and / or mudguard 22, the bottom connecting plate of the rear coat rack 23 and / or the front end of the bracket of the mudguard 22 are embedded into the left hook mounting slot 9 and the right hook mounting slot 16 and fixed with screws. When the vehicle is not equipped with the rear coat rack 23 and mudguard 22, the taillight 19 can be installed in the left hook mounting slot 9 and the right hook mounting slot 16.

Claims

1. A bicycle rear hook assembly, characterized in that: The device includes a left rear hook (1) and a right rear hook (10) arranged opposite to each other. The left rear hook (1) is L-shaped with a left hook front insertion part (2) at its front end and a left hook rear insertion part (5) at its rear end. The right rear hook (10) is L-shaped with a right hook front insertion part (11) at its front end and a right hook rear insertion part (12) at its rear end. A detachable left shaft (8) is installed below the rear of the left rear hook (1), and a detachable right shaft (15) is installed below the rear of the right rear hook (10). A left hook mounting groove (9) is provided on the inner side of the upper rear of the left rear hook (1), and a right hook mounting groove (16) is provided on the inner side of the upper rear of the right rear hook (10). A first boss (3) and a second boss (4) for installing a brake assembly (20) are provided on the top of the left rear hook (1), and a threaded mounting hole for installing a speed sensor (18) is provided in the middle of the inner side of the left rear hook (1).

2. The bicycle rear hook assembly as claimed in claim 1, characterized in that: The left shaft (8) and the right shaft (15) are barrel shaft adapters, and shaft holes are provided in the middle of both the left shaft (8) and the right shaft (15).

3. The bicycle rear hook assembly as claimed in claim 1, characterized in that: The left shaft (8) and the right shaft (15) are quick-release fittings, and slots are provided at the bottom of both the left shaft (8) and the right shaft (15).

4. The bicycle rear hook assembly as described in claim 2 or 3, characterized in that: A groove (13) is provided on the inner side of the middle part of the right rear hook (10). A wiring channel that communicates with the groove (13) is provided on the front part of the right rear hook (10) and the front insertion part (11) of the right hook. A wire hole (14) that communicates with the groove (13) is provided on the top of the middle part of the right rear hook (10).

5. The bicycle rear hook assembly as described in claim 2 or 3, characterized in that: Threaded mounting holes are provided on the sidewalls of both the left hook mounting groove (9) and the right hook mounting groove (16).

6. The bicycle rear hook assembly as claimed in claim 2 or 3, characterized in that: A threaded mounting hole is provided at the center of the first boss (3) and the second boss (4).

7. The bicycle rear hook assembly as described in claim 2 or 3, characterized in that: Two ladder mounting holes (6) are provided in the middle of the left rear hook (1).

8. The bicycle rear hook assembly as claimed in claim 2 or 3, characterized in that: The right-side shaft (15) has a downwardly extending extension with a mounting hole at the end of the extension for mounting a transmission.

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