Headstock headset top cover device of bicycle

Abstract

The utility model relates to the technical field of bicycles, in particular to a bicycle headset top cover device. Comprising an open circular ring, two arc-shaped pressing blocks and two second bolts; a locking structure is arranged at the opening of the open circular ring, and a limiting open ring is arranged on the inner wall of the open circular ring; the two arc-shaped pressing blocks are symmetrically arranged below the open circular ring, first guide rods are vertically connected to the arc-shaped pressing blocks, and the top ends of the first guide rods movably penetrate through the bottom end of the open circular ring and are in sliding connection with the open circular ring; two circular grooves are formed in the upper end of the open circular ring, two threaded holes matched with the second bolts are formed in the lower end of the open circular ring, and the two threaded holes communicate with the two circular grooves. According to the technical scheme, the top cover is arranged on the outer side of the steering tube in an externally-installed mode, compared with a fixing structure with a built-in sunflower, the internal space of the steering tube cannot be occupied, and the good pre-pressing function of the steering tube is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycles, in particular to a bicycle head bowl assembly top cover device. Background Art

[0002] Bicycle headsets are used to connect the fork pivot tube to the steerer tube, which is part of the bicycle frame. To this end, any bicycle headset includes lower and upper ball bearings that create a connection that allows the pivot tube to rotate relative to the steerer tube. Furthermore, the headset also includes lower and upper axially locking ball bearings that rest against the lower or upper end of the steerer tube.

[0003] The bicycle headset in the prior art needs to be forced into a sunflower to complete the functions of tightening the headset and maintaining pre-compression, which wastes the available space of the bicycle rotating tube. Utility Model Content

[0004] The utility model aims to solve the problems existing in the background technology and proposes a bicycle headset top cover device.

[0005] The technical solution of the utility model is a bicycle headset top cover device, comprising:

[0006] An open ring, the opening of which has a locking structure, and a limited open ring is provided on the inner wall of the open ring;

[0007] Two arc-shaped pressing blocks are symmetrically arranged below the open circular ring. A first guide rod is vertically connected to the arc-shaped pressing blocks. The top end of the first guide rod movably passes through the bottom end of the open circular ring and is slidably connected to the open circular ring.

[0008] Two second bolts, two circular grooves are provided on the upper end of the open circular ring, two threaded holes adapted to the second bolts are provided on the lower end of the open circular ring, and the two threaded holes are communicated with the two circular grooves.

[0009] Preferably, two limiting mechanisms are installed on the open ring, and the limiting mechanisms include a limiting rod, a pulling block and an elastic connecting assembly. The limiting rod movably passes through the side wall of the open ring, and a wedge block is provided at the end of the limiting rod. The wedge block is arranged in the circular groove on the corresponding side, and the pulling block is arranged on the outside of the open ring and connected to the limiting rod. The pulling block is connected to the open ring through an elastic connecting assembly.

[0010] Preferably, the elastic connection assembly includes a second guide rod, a spring and a limit block, wherein the second guide rod is connected to the open ring, the second guide rod movably passes through the pulling block and its outer end is connected to the limit block, and the spring is sleeved and installed on the second guide rod.

[0011] Preferably, a buckle cover is further included, and a compass and a rubber plug are respectively provided at the upper and lower ends of the buckle cover, and the edge of the rubber plug is provided with a cut corner.

[0012] Preferably, the diameter of the buckle cover is larger than the outer diameter of the open ring.

[0013] Preferably, the locking structure includes a first bolt, a nut and a connecting ear plate, and the two connecting ear plates are respectively connected to the two ends of the opening of the open circular ring. Circular holes are provided on the connecting ear plates on both sides, and a hexagonal groove is provided on the connecting ear plate on the other side, and the hexagonal groove is connected to the circular hole on the corresponding side.

[0014] Compared with the existing technology, the present invention has the following beneficial technical effects: this technical solution adopts an external installation method to place the top cover on the outside of the steering tube. Compared with the fixed structure of the built-in sunflower, it does not occupy the internal space of the steering tube and ensures its good pre-compression function. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a bicycle headset top cover device installed on a steering tube in the present invention.

[0016] Figure 2 This is an exploded view of the present invention.

[0017] Figure 3 It is a cross-sectional structural diagram of the open circular ring in the utility model.

[0018] Figure 4 It is a structural schematic diagram of the bottom of the buckle cover in the utility model.

[0019] Figure 5 for Figure 3 Schematic diagram of the local enlarged structure at point A.

[0020] Figure numerals: 1, open ring; 101, circular groove; 102, threaded hole; 2, arc-shaped pressure block; 3, connecting ear plate; 4, buckle cover; 5, compass; 61, first bolt; 62, nut; 7, second bolt; 8, first guide rod; 9, rubber plug; 10, limit open ring; 11, limit plug; 12, pull block; 13, second guide rod; 14, spring; 15, limit block. DETAILED DESCRIPTION

[0021] Example 1

[0022] like Figure 1-Figure 5 As shown, the bicycle headset top cover device proposed in this embodiment includes an open circular ring 1, two arc-shaped pressing blocks 2 and two second bolts 7.

[0023] The opening of the open ring 1 has a locking structure, which includes a first bolt 61, a nut 62 and a connecting ear plate 3. The two connecting ear plates 3 are respectively connected to the two ends of the opening of the open ring 1. Circular holes are provided on the connecting ear plates 3 on both sides, and a hexagonal groove is provided on the connecting ear plate 3 on the other side. The hexagonal groove is connected to the circular hole on the corresponding side, and a limited opening ring 10 is provided on the inner wall of the open ring 1; two arc-shaped pressure blocks 2 are symmetrically arranged below the open ring 1, and a first guide rod 8 is vertically connected to the arc-shaped pressure block 2. The top end of the first guide rod 8 movably passes through the bottom end of the open ring 1 and is slidably connected to the open ring 1; two circular grooves 101 are provided at the upper end of the open ring 1, and two threaded holes 102 adapted to the second bolt 7 are provided at the lower end of the open ring 1, and the two threaded holes 102 are connected to the two circular grooves 101.

[0024] The bicycle headset top cover device also includes a buckle cover 4, and the upper and lower ends of the buckle cover 4 are respectively provided with a compass 5 and a rubber plug 9. The edge of the rubber plug 9 is provided with a cut angle. The setting of the cut angle is to facilitate the rubber plug 9 to be inserted into the inner side of the opening of the rotating tube. The buckle cover 4 is buckled on the upper end of the opening of the steering tube and the rubber plug 9 is placed on the inner side of the steering tube, which can play a sealing role, and the setting of the compass 5 can play a role in guiding the direction; the diameter of the buckle cover 4 is larger than the outer diameter of the open circular ring 1. This setting enables the buckle cover 4 to cover the open circular ring 1, which can prevent rainwater from entering the interior of the circular groove 101.

[0025] In this embodiment, before installation, an annular groove that matches the limiting open ring 10 is opened on the outer wall of the steering tube of the bicycle. During installation, the two ends of the opening of the open ring 1 are opened to make the opening larger, and then the open ring 1 is sleeved on the outer side of the steering tube. The open ring 1 should be made of a metal material with strong toughness. The limiting open ring 10 is aligned with the annular groove, and then the nut 62 is placed inside the hexagonal groove. Then, the first bolt 61 is inserted into the circular hole from the other side so that the first bolt 61 is threadedly connected with the nut 62. In this technical solution, a cross groove can be opened on the head of the first bolt 61 and the second bolt 7 to facilitate tightening them with a screwdriver head. The bottom ends of the two second bolts 7 are respectively placed in the circular grooves 101 on both sides, and the second bolts 7 are rotated to be threadedly connected with the threaded holes 102. The second bolt 7 presses down the arc pressure block 2, and the arc pressure block 2 can press the pad, and the pad then presses the tight ring, thereby achieving the installation and fixation of the headband.

[0026] Example 2

[0027] like Figure 5As shown, a bicycle head bowl assembly top cover device proposed in this embodiment, compared with embodiment 1, in this embodiment, two limiting mechanisms are installed on the open ring 1, the limiting mechanism includes a limiting rod 11, a pulling block 12 and an elastic connecting component, the limiting rod 11 movably passes through the side wall of the open ring 1, and a wedge block is provided at the end of the limiting rod 11, which is arranged in the circular groove 101 on the corresponding side, and the pulling block 12 is arranged on the outside of the open ring 1 and connected to the limiting rod 11. The pulling block 12 is connected to the open ring 1 through an elastic connecting component, and the elastic The connecting assembly includes a second guide rod 13, a spring 14 and a limit block 15, wherein the second guide rod 13 is connected to the open ring 1, the second guide rod 13 movably passes through the pulling block 12 and its outer end is connected to the limit block 15, the spring 14 is sleeved and installed on the second guide rod 13, when the second bolt 7 is screwed downward, the raised portion of the thread squeezes the wedge block of the limit rod 11 to move to one side, and when the end of the limit rod 11 is stuck in the recessed portion of the thread, the limit rod 11 plays a limiting role on the second bolt 7, which is used to limit the second bolt 7 from moving upward.

[0028] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A bicycle headset top cover device, characterized in that: include: An open circular ring (1), wherein the opening of the open circular ring (1) has a locking structure, and a limited open ring (10) is provided on the inner wall of the open circular ring (1); Two arc-shaped pressing blocks (2), the two arc-shaped pressing blocks (2) are symmetrically arranged below the open circular ring (1), a first guide rod (8) is vertically connected to the arc-shaped pressing blocks (2), and the top end of the first guide rod (8) movably passes through the bottom end of the open circular ring (1) and is slidably connected to the open circular ring (1); Two second bolts (7), two circular grooves (101) are provided at the upper end of the open circular ring (1), two threaded holes (102) adapted to the second bolts (7) are provided at the lower end of the open circular ring (1), and the two threaded holes (102) are communicated with the two circular grooves (101).

2. The bicycle headset top cover device according to claim 1, characterized in that: Two limiting mechanisms are installed on the open circular ring (1), and the limiting mechanisms include a limiting rod (11), a pulling block (12) and an elastic connection component. The limiting rod (11) movably penetrates the side wall of the open circular ring (1). A wedge block is provided at the end of the limiting rod (11), and the wedge block is provided in the circular groove (101) on the corresponding side. The pulling block (12) is provided on the outside of the open circular ring (1) and is connected to the limiting rod (11). The pulling block (12) is connected to the open circular ring (1) through the elastic connection component.

3. The bicycle headset top cover device according to claim 2, characterized in that: The elastic connection assembly includes a second guide rod (13), a spring (14) and a limit block (15), wherein the second guide rod (13) is connected to the open ring (1), the second guide rod (13) movably passes through the pulling block (12) and its outer end is connected to the limit block (15), and the spring (14) is sleeved and installed on the second guide rod (13).

4. The bicycle headset top cover device according to claim 1, characterized in that: The utility model also comprises a buckle cover (4), wherein the upper and lower ends of the buckle cover (4) are respectively provided with a compass (5) and a rubber plug (9), and the edge of the rubber plug (9) is provided with a cut corner.

5. The bicycle headset top cover device according to claim 4, characterized in that: The diameter of the buckle cover (4) is larger than the outer diameter of the open ring (1).

6. The bicycle headset top cover device according to claim 1, characterized in that: The locking structure comprises a first bolt (61), a nut (62) and a connecting ear plate (3). The two connecting ear plates (3) are respectively connected to the two ends of the opening of the open circular ring (1). The connecting ear plates (3) on both sides are provided with circular holes, and the connecting ear plate (3) on the other side is provided with a hexagonal groove, which is connected to the circular hole on the corresponding side.

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