Quick release rod structure of hub

Abstract

The utility model discloses a quick release rod structure of a hub, which comprises a quick release pull rod, a locking nut and a locking mechanism, a limit ring is arranged on the quick release pull rod, the locking mechanism is sleeved outside the limit ring, the locking mechanism comprises an iron embossed pad, a return spring, an iron pressure cushion block, a plastic shell and an eccentric iron wrench, one end face of the iron embossed pad is pressed against the side face of a bicycle wheel carrier, and the other end face of the iron embossed pad is pressed against the eccentric iron wrench. A spring groove is formed in the inner side of the iron embossed pad sleeve, a return spring is arranged between the spring groove and the limiting ring, the other end face of the iron embossed pad is connected with an iron embossed pad block in an abutting mode, a rotating shaft is arranged at the end, away from the locking nut, of the quick-release pull rod, the eccentric iron wrench is hinged to the rotating shaft, and the plastic shell is in threaded connection with the iron embossed pad. A limiting hook is hinged to the outer side of the plastic shell, a limiting groove is formed in the side edge of the eccentric iron wrench, a strong magnetic sheet is arranged in the limiting groove, and a groove part magnetically connected with the strong magnetic sheet is arranged at the other end of the limiting hook. By means of the structure, the clamping force of the wheel rim on the frame is larger, and the wheel rim is safer.

Description

Technical Field

[0001] The utility model belongs to the relevant technical field of bicycle parts, and particularly relates to a quick-release rod structure of a hub. Background Art

[0002] The hub, commonly known as the "hub barrel", is the barrel outside the axle that connects to the spokes, usually called the axle skin. According to the different ways of arranging the number of spokes, there are generally 3-way and 5-way arrangements. There are two types of hubs: iron hubs and aluminum hubs. Iron hubs are the hubs of bicycles that are generally ridden at home, while aluminum hubs are generally higher-end hubs, used as hubs for mountain bikes, performance bikes, road bikes, etc.

[0003] The bicycle quick-release lever is used as the installation medium between the hub and the bicycle frame, and plays a fastening effect like a bolt; however, the existing quick-release lever, such as the bicycle hub with a quick-release locking structure disclosed in Patent No. 201720891262.0, includes a locking shaft rod, the locking shaft rod includes a rod-shaped shaft rod body, the head of the shaft rod body is provided with a horizontally arranged connecting column head, one end of the shaft rod body is provided with a locking screw head, the other end of the shaft rod body is provided with a locking pad, and the connecting column head is provided with a rotatable quick handle. Under the cooperation of the connecting column head and the eccentric circular hole, the rotating clamp ring is tightly pressed against the locking arc surface of the locking pad until the locking horizontal bar is buckled into the locking card slot, so that the hub is locked, which is firm and reliable and not easy to fall off. However, it is found during use that the locking pad is a plastic part, which is compressible and will age over time, resulting in a decrease in clamping force, affecting the fixing effect of the wheel, so it needs to be improved. Utility Model Content

[0004] The utility model aims to provide a quick-release rod structure of a hub, which solves the problem that the clamping force of the existing quick-release rod structure of the hub decreases after long-term use and the hub is easily loosened.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses a quick-release rod structure of a hub, comprising a quick-release rod, one end of which is threadedly connected with a locking nut, the other end of which is provided with a locking mechanism, a limiting ring is provided on the quick-release rod, the locking mechanism is sleeved outside the limiting ring, the locking mechanism comprises an iron embossed pad, a return spring, an iron pressure pad, a plastic shell and an eccentric iron wrench, one end face of the iron embossed pad is pressed against the side surface of a bicycle wheel frame, the iron embossed pad is sleeved outside the quick-release rod, a spring groove is provided on the inner side of the iron embossed pad sleeve, the limiting ring is placed in the spring groove, and the return spring sleeved outside the quick-release rod is provided between the spring groove and the limiting ring, the The other end face of the iron embossed pad is connected to the iron pressure pad block which is sleeved on the outside of the quick-release pull rod, and a rotating shaft is provided at the end of the quick-release pull rod away from the locking nut. The eccentric iron wrench is hinged on the rotating shaft, and the other end face of the iron pressure pad block is abutted against the side face of the eccentric iron wrench to form a locking distance H for locking the bicycle tire. The plastic shell is threadedly connected to the iron embossed pad, and a limiting hook is hinged on the outer side of the plastic shell, and a limiting groove is provided on the side of the eccentric iron wrench, and a strong magnetic sheet is provided in the limiting groove, and the other end of the limiting hook is provided with a groove portion which is magnetically connected to the strong magnetic sheet, and the strong magnetic sheet is inserted into the groove portion when the eccentric iron wrench is pressed down to lock the bicycle tire.

[0007] Preferably, in order to lengthen the lever arm and make quick-release locking more labor-saving, an extended plastic wrench is lengthened by 5MM on the basis of the original eccentric iron wrench, a fixing pin is provided under the eccentric iron wrench, and the extended plastic wrench is hinged on the fixing pin.

[0008] Preferably, a positioning platform is provided on one side of the iron pressure pad, a positioning groove cooperating with the positioning platform is provided in the iron embossing pad, and an arc-shaped groove cooperating with the eccentric iron wrench is provided on the other side of the iron pressure pad.

[0009] Preferably, an internal threaded portion is provided in the plastic shell, an external threaded portion matching the internal threaded portion is provided on the outer side of the iron embossed pad, and an arc-shaped notch communicating with the inside of the plastic shell is provided on the side of the plastic shell.

[0010] Preferably, in order to improve the anti-skid property and fix the vehicle wheel frame, one or more anti-skid protrusions are annularly arranged on one end surface of the iron embossed pad facing the locking nut.

[0011] Preferably, in order to effectively limit the position of the vehicle wheel frame, two positioning columns distributed up and down are arranged on one end surface of the iron embossed pad facing the locking nut.

[0012] The utility model has the following beneficial effects: the structure replaces the original plastic locking pad with an iron embossed pad with a spring groove inside, and arranges a limiting ring on the original quick-release pull rod, and utilizes the limiting ring to cooperate with a return spring inside the spring groove to elastically push the iron embossed pad, so that the iron embossed pad will not produce elastic deformation after long-term use, and finally makes the clamping force of the wheel rim on the frame stronger, and the clamping force will not change due to deformation, making it safer to use and ultimately not easy to loosen; at the same time, the added return spring makes the eccentric iron wrench smoother and more labor-saving to open. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the internal cross section of a hub after the quick release lever is assembled in Example 1;

[0014] Figure 2 It is a schematic structural diagram of a quick-release rod structure of a hub in Example 1 when the plastic shell is separated from other components;

[0015] Figure 3 This is a schematic diagram of the front structure of the plastic housing in Example 1;

[0016] Figure 4 for Figure 1 A magnified image of point A;

[0017] Figure 5 for Figure 4 A magnified view of point B;

[0018] Figure 6 This is a partial structural schematic diagram of a quick-release rod structure of a hub in Example 2.

[0019] Reference numerals:

[0020] Quick-release pull rod 1, locking nut 2, locking mechanism 3, limiting ring 4, iron embossed pad 301, return spring 302, iron pressure pad 303, plastic shell 304, eccentric iron wrench 305, spring groove 5, rotating shaft 6, positioning column 7, anti-slip protrusion 8, limiting hook 9, limiting groove 10, strong magnetic sheet 11, groove part 12, fixing pin 13, extended plastic wrench 14, positioning platform 15, positioning groove 16, arc-shaped groove 17, internal thread part 18, external thread part 19, arc-shaped notch 20. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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. Example 1

[0022] See also Figure 1-Figure 5 As shown, a quick-release rod structure of a hub disclosed in this embodiment comprises a quick-release rod 1, one end of which is threadedly connected with a locking nut 2, the other end of the quick-release rod 1 is provided with a locking mechanism 3, a limiting ring 4 is provided on the quick-release rod 1, the locking mechanism 3 is sleeved outside the limiting ring 4, the locking mechanism 3 comprises an iron embossed pad 301, a return spring 302, an iron pressure pad block 303, a plastic shell 304 and an eccentric iron wrench 305, one end face of the iron embossed pad 301 is pressed against the side surface of the bicycle wheel frame, the iron embossed pad 301 is sleeved on the outside of the quick-release rod 1, a spring groove 5 is provided on the inner side of the iron embossed pad 301 sleeve, the limiting ring 4 is placed in the spring groove 5, and the return spring 302 sleeved outside the quick-release rod 1 is provided between the spring groove 5 and the limiting ring 4, the The other end face of the iron embossed pad 301 is connected to the iron pressure pad block 303 which is sleeved on the outside of the quick-release rod 1. The end of the quick-release rod 1 away from the locking nut 2 is provided with a rotating shaft 6. The eccentric iron wrench 305 is hinged on the rotating shaft 6, and the other end face of the iron pressure pad block 303 is abutted against the side of the eccentric iron wrench 305 to form a locking distance H for locking the bicycle tire. The plastic shell 304 is threadedly connected to the iron embossed pad 301, and a limiting hook 9 is hinged on the outer side of the plastic shell 304. A limiting groove 10 is provided on the side of the eccentric iron wrench 305, and a strong magnetic sheet 11 is provided in the limiting groove 10. The other end of the limiting hook 9 is provided with a groove portion 12 which is magnetically connected to the strong magnetic sheet 11, and the strong magnetic sheet 11 is inserted into the groove portion 12 when the eccentric iron wrench 305 is pressed down to lock the bicycle tire.

[0023] Preferably, in order to lengthen the lever arm and make quick release locking more labor-saving, an extended plastic wrench 14 is lengthened by 5MM on the basis of the original eccentric iron wrench 305, a fixing pin 13 is provided under the eccentric iron wrench 305, and the extended plastic wrench 14 is hinged on the fixing pin 13. The extended plastic wrench 14 is additionally provided with the above-mentioned structural arrangement to lengthen the lever arm and make quick release locking more labor-saving.

[0024] Preferably, a positioning platform 15 is provided on one side of the iron pressure pad 303, a positioning groove 16 cooperating with the positioning platform 15 is provided in the iron embossing pad 301, and an arc groove 17 cooperating with the eccentric iron wrench 305 is provided on the other side of the iron pressure pad 303.

[0025] Preferably, an internal threaded portion 18 is provided in the plastic shell 304, an external threaded portion 19 cooperating with the internal threaded portion 18 is provided on the outer side of the iron embossed pad 301, and an arc-shaped notch 20 connected to the inside of the plastic shell 304 is provided on the side of the plastic shell 304. The plastic shell 304 is threadedly connected to the iron embossed pad 301 for easy later disassembly.

[0026] Preferably, in order to improve the anti-skid property and fix the automobile wheel frame, one or more anti-skid protrusions 8 are arranged in a ring shape on one end face of the iron embossed pad 301 facing the locking nut 2. By adding the anti-skid protrusions 8 through the above-mentioned structural arrangement, it can be achieved that when the bicycle wheel frame is inserted into the quick-release pull rod 1, the side edge of the bicycle wheel frame and the anti-skid protrusions 8 are in contact with each other, thereby increasing the friction between the two and ultimately improving the anti-skid property.

[0027] The structure replaces the original plastic locking pad with an embossed iron pad 301 with a spring groove 5 inside, and sets a limit ring 4 on the original quick-release pull rod 1. The limit ring 4 cooperates with the spring groove 5 to set a return spring 302 that can elastically push the embossed iron pad 301, so that the iron embossed pad 301 will not produce elastic deformation after long-term use, and finally the clamping force of the wheel rim on the frame is stronger, and the clamping force will not change due to deformation, making it safer to use and not easy to loosen. At the same time, the additional return spring 302 makes the eccentric iron wrench 305 smoother and more labor-saving when opening, and the extended plastic wrench 14 is lengthened by 5MM on the eccentric iron wrench 305 to lengthen the force arm, making the quick release locking more labor-saving and more convenient to operate.

[0028] The installation method of this structure is as follows: in the initial state, the eccentric iron wrench 305 does not press the iron pressure pad 303. At this time, the eccentric iron wrench 305 and the quick-release rod 1 are on the same horizontal line. First, loosen the locking nut 2 and remove the locking nut 2. After one end of the quick-release rod 1 passes through the wheel rim, clamp one side of the wheel frame on one end of the quick-release rod 1, that is, close to the locking nut 2, and tighten the locking nut 2. Then, clamp the other side of the wheel frame on the other end of the quick-release rod 1, that is, close to the locking mechanism 3. Then, by bending the eccentric iron wrench 305 and pressing it down, the iron pressure pad 303 and the iron embossed pad 301 are pressed against the center point of the quick-release rod 1 until the eccentric iron wrench 305 is perpendicular to the quick-release rod 1. Figure 1In the state shown, the bicycle rim is locked at this time, and then the limiting hook 9 is rotated to insert one end of the limiting hook 9 into the limiting groove 10 to ensure that the strong magnetic sheet 11 and the groove portion 12 are magnetically attracted to each other, thereby realizing the limiting and fixing effect on the eccentric iron wrench 305 and further preventing it from loosening. It should be noted that the magnetic method of the strong magnetic sheet 11 and the groove portion 12 is to set a metal sheet magnetically connected to the strong magnetic sheet 11 on the inner wall of the groove portion 12, and such a structure belongs to the conventional technology in this field, so it is not described in detail. Example 2

[0029] See also Figure 6 As shown, a quick-release rod structure of a hub disclosed in this embodiment is preferably used to effectively limit the position of a vehicle wheel frame. Two positioning columns 7 distributed vertically are arranged on one end face of the iron embossed pad 301 facing the locking nut 2. In this embodiment, the positioning columns 7 are arranged on one side of the iron embossed pad 301, and limiting holes cooperating with the positioning columns 7 are arranged on the side of the bicycle wheel frame. When the positioning columns 7 are inserted into the limiting holes, the bicycle wheel frame can be positioned, thereby preventing the bicycle wheel frame from being separated from the iron embossed pad 301 when the locking mechanism 3 is loosened, thereby affecting safety.

[0030] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A quick-release rod structure for a hub, comprising a quick-release rod (1), a locking nut (2) being threadedly connected to one end of the quick-release rod (1), and a locking mechanism (3) being provided at the other end of the quick-release rod (1), characterized in that: A limiting ring (4) is arranged on the quick-release pull rod (1), and the locking mechanism (3) is sleeved outside the limiting ring (4). The locking mechanism (3) comprises an iron embossed pad (301), a return spring (302), an iron pressure pad (303), a plastic shell (304) and an eccentric iron wrench (305). One end face of the iron embossed pad (301) is pressed against the side of the bicycle wheel frame. The iron embossed pad (301) is sleeved outside the quick-release pull rod (1). A spring groove (5) is arranged on the inner side of the sleeve of the iron embossed pad (301). The limiting ring (4) is placed in the spring groove (5), and the return spring (302) sleeved outside the quick-release pull rod (1) is arranged between the spring groove (5) and the limiting ring (4). The other end face of the iron embossed pad (301) is top-connected with the iron pressure pad (303) sleeved outside the quick-release pull rod (1). ), a rotating shaft (6) is provided at one end of the quick-release pull rod (1) away from the locking nut (2), the eccentric iron spanner (305) is hinged on the rotating shaft (6), and the other end surface of the iron pressure pad (303) abuts against the side surface of the eccentric iron spanner (305) to form a locking distance H for locking the bicycle tire, the plastic shell (304) is threadedly connected to the iron embossed pad (301), a limiting hook (9) is hinged on the outer side of the plastic shell (304), a limiting groove (10) is provided on the side of the eccentric iron spanner (305), a strong magnetic sheet (11) is provided in the limiting groove (10), the other end of the limiting hook (9) is provided with a groove portion (12) magnetically connected to the strong magnetic sheet (11), and the strong magnetic sheet (11) is inserted into the groove portion (12) when the eccentric iron spanner (305) is pressed down to lock the bicycle tire.

2. The quick-release rod structure of a hub according to claim 1, characterized in that: A fixing pin (13) is provided below the eccentric iron spanner (305), and an extended plastic spanner (14) is hingedly connected to the fixing pin (13).

3. The quick-release rod structure of a hub according to claim 1, characterized in that: A positioning platform (15) is provided on one side of the iron pressure pad (303), a positioning groove (16) cooperating with the positioning platform (15) is provided in the iron embossing pad (301), and an arc-shaped groove (17) cooperating with an eccentric iron wrench (305) is provided on the other side of the iron pressure pad (303).

4. A quick-release rod structure for a hub according to claim 1, 2 or 3, characterized in that: An internal threaded portion (18) is provided in the plastic shell (304), an external threaded portion (19) matching the internal threaded portion (18) is provided on the outside of the iron embossed pad (301), and an arc-shaped notch (20) communicating with the inside of the plastic shell (304) is provided on the side of the plastic shell (304).

5. A hub quick-release rod structure according to claim 1, 2 or 3, characterized in that: One or more anti-slip protrusions (8) are provided in an annular manner on one end surface of the iron embossed pad (301) facing the locking nut (2).

6. A quick-release rod structure for a hub according to claim 1, 2 or 3, characterized in that: Two positioning columns (7) distributed vertically are provided on an end surface of the iron embossed pad (301) facing the locking nut (2).

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