TWI596035B - Bicycle beam pipe clamping device - Google Patents

Description

Bicycle beam tube pressing device

The invention relates to a bicycle component, in particular to a bicycle beam tube pressing device.

In order to stably install the faucet on the beam tube of the bicycle, a pressing member is usually installed in the beam tube for positioning and supporting the components for mounting the faucet. Referring to FIG. 6, the pressing member 90 includes The screwing portion 91 and the at least one pressing ring 92 are formed in a circular tubular shape, and a screwing hole 910 is formed in the center thereof. The pressing ring 92 is formed in a petal shape around the screw locking portion 91. On the outer circumference, it can be a single-layer structure or a two-layer structure with upper and lower intervals (as shown in Fig. 6).

When the pressing member 90 is installed, a screw locking tool is first screwed to the screw hole 910 of the screwing portion 91 of the pressing member 90, and then the screw locking tool and the pressing member 90 are aligned with the bicycle beam. The opening above the tube, and then hitting the rear end of the screw locking tool with a tapping tool such as a shovel, so that the pressing member 90 is knocked into the bicycle beam tube and fastened to the inner peripheral wall of the bicycle beam tube to Forming a support structure for positioning the faucet components.

However, when the existing pressing member 90 is knocked into the bicycle beam tube, the author must spend considerable effort and time, and is prone to tilting or deforming the pressing member 90 due to uneven or skewed force of the striking force. Further, the components of the faucet cannot be smoothly installed. Further, since the pressing ring 92 of the pressing member 90 is pressed tightly on the inner peripheral wall of the bicycle harness tube, once the pressing member 90 is knocked into the bicycle beam tube After the inside, it can no longer be re-adjusted or replaced, which is quite inconvenient for maintenance and use.

In view of the above problems of the prior art pressing members, the present invention provides a bicycle beam tube pressing device which is easy to install and adjustable and replaceable, thereby achieving time and labor saving installation, and convenient maintenance and use.

The bicycle beam tube pressing device of the present invention comprises: a pressing member comprising a screw locking portion and at least two abutting pieces, the screw locking portion forming a screw locking hole at the center, the at least two abutting pieces An average distribution is formed on the screw locking portion, and the abutting pieces respectively extend outward and obliquely upward; a sleeve abuts against the inner side of the abutting piece of the pressing member, and is on the outer circumference Forming a positioning flange on the surface, and forming a through hole at the center; and a pressing bolt passing through the through hole of the sleeve, and forming a threaded portion screwed to the screw portion of the pressing member The threaded hole, and optionally the locking member, is bolted or unscrewed to adjust the abutment against the sleeve to expand or retract from the sleeve.

Preferably, the outer diameter of the sleeve is tapered from the top to the bottom, and a pushing flange is protruded from the outer peripheral surface of the bottom portion, and the pushing flange abuts against the respective pressing members. Abut the inner side of the sheet.

Preferably, the pressing bolt comprises a cylinder and a bolt, the cylinder is disposed in the through hole of the sleeve, and the threaded segment is formed on the outer peripheral surface of the lower portion, the bolt is formed on the The top end of the cylinder has a screw groove recessed in the top surface.

Preferably, the sleeve forms a groove communicating with the perforation on the top surface, and the bottom surface of the groove forms an abutting ring edge; the bolt of the pressing bolt corresponds to the sleeve. The groove rests against the rim.

Preferably, the screw groove is a star or a hexagonal or quincunx shaped groove.

Preferably, the cylinder of the pressing bolt penetrates through the center to form a set of screw holes, and the set screw holes communicate with the screw groove.

Preferably, the pressing member comprises six abutting pieces, and the abutting pieces are respectively formed in a petal shape on an outer circumferential surface of the screw locking portion.

Since the bicycle beam tube pressing device of the present invention utilizes the screwing relationship between the adjusting bolt and the pressing member, the adjusting and pressing member is controlled to be close to or away from the sleeve, so that the abutting pieces can be unfolded on the bicycle beam tube. On the inner peripheral wall, or slightly loosening the adjusting bolt to make each abutting piece elastically retract and retract, it can be easily readjusted or removed, without the need for laborious tapping during installation, saving time and labor, and ensuring the installation position. With the horizontal state, it prevents the tilt or deformation and is quite convenient for operation.

In order to understand the technical features and practical functions of the present invention in detail, and in accordance with the contents of the specification, the following is further illustrated in the following preferred embodiments.

The bicycle beam tube pressing device of the present invention, referring to FIG. 1 to FIG. 3, comprises a pressing member 10, a sleeve 20 and a pressing bolt 30, wherein the pressing member 10 is made of elastic steel, and The utility model comprises a screw locking portion 11 and at least two abutting pieces 12, wherein the screw locking portion 11 has a circular tubular shape, and a screwing hole 110 is formed at a center thereof. The at least two abutting pieces 12 are petal-shaped and average. The abutting piece 12 extends outwardly and obliquely upwardly. Preferably, the pressing member 10 of the present embodiment can be disposed on the outer peripheral surface of the screw locking portion 11 . The upper edge is formed with at least two abutting pieces 12, which are single-layer pressing members 10, or at least two abutting pieces 12 can be respectively disposed on the outer circumferential surface of the screw locking portion 11 in an upper and lower spaced manner. The pressing member 10 has six abutting pieces 12 arranged at equal intervals and symmetrically;

The sleeve 20 is disposed above the pressing member 10 and abuts against the inner side surface of the abutting piece 12, and is a circular tube whose outer diameter is tapered from the top to the bottom, and a through hole 21 is formed at the center thereof, and A groove 22 communicating with the through hole 21 is formed at a center of the top surface. A bottom surface of the groove 22 is formed on the bottom surface of the through hole 21 to form an abutting ring 220. Further, the sleeve 20 is protruded from the outer peripheral surface of the top portion. The positioning flange 23, and the sleeve 20 protrudes from the outer peripheral surface of the bottom portion to abut against the flange 24, and the pushing flange 24 abuts against the inner side of the abutting piece 12 of the pressing member 10. ;

The tightening bolt 30 is screwed through the sleeve 20 to the pressing member 10, and optionally adjusts the abutting pieces 12 on the pressing member 10 to be close to the sleeve 20 to be deployed or away from the sleeve The sleeve 20 is elastically retracted. The pressing bolt 30 includes a cylinder 31 and a bolt 32. The cylinder 31 is disposed in the through hole 21 of the sleeve 20 and forms a set at the center. The screw hole 310 is used for the installation of the faucet component, and a threaded section 311 is formed on the outer peripheral surface of the lower section. The threaded section 311 is screwed onto the screw-locking hole 110 of the pressing member 10, and the plug 32 is formed. The top end of the cylinder 31 corresponds to the abutting ring 220 of the recess 22 of the sleeve 20, and a screw groove for connecting the set screw hole 310 is recessed on the top surface. 320, preferably, the screw groove 320 is a star or hexagonal or quincunx shaped groove;

Before the bicycle beam tube pressing device of the present invention is installed, the cylinder 31 of the pressing bolt 30 is passed through the through hole 21 of the sleeve 20, and the threaded portion 311 is screwed to the pressing member 10 The screw-locking holes 110 are abutted against the abutting flanges 24 of the sleeve 20, so that the abutting pieces 12 only abut against and slightly bite the pushing of the sleeves 20 The flange 24 is not yet screwed open by the adjusting bolt 30. When mounted on the bicycle beam tube 50, referring to FIG. 4 and FIG. 5, the user can press the pressing member 10 and the sleeve 20 described above. The locking bolt 30 is directly inserted into the bicycle beam tube 50, and the positioning flange 23 of the sleeve 20 is abutted against the top surface of the bicycle beam tube 50, and then inserted into the hand tool 60 such as a hexagon socket or a wrench. The screwing groove 320 of the bolt 30 is tightened, and the pressing bolt 30 is rotated to force the pressing member 10 to approach the sleeve 20, at this time, due to the inner side of the abutting piece 12 on the pressing member 10. Abutting against the pushing flange 24 of the sleeve 20, the pressing member 10 does not rotate with the adjusting bolt 30, and the abutting pieces 12 are pressed against the pushing of the sleeve 20. Against the flange 24 and outward The side and the horizontal direction are unfolded, so that the outer side surfaces of the abutting pieces 12 closely abut against the inner peripheral wall of the bicycle harness 50 to form a fixed latch structure.

Since the pressing member 10 of the bicycle beam tube 50 pressing device of the present invention is made of elastically deformable material such as elastic steel, it can be elastically stretched when pressed against the pressing force, and closely abuts against the bicycle beam tube. 50 on the inner perimeter wall.

In addition, when the bicycle beam tube pressing device is to be adjusted or replaced, the user only needs to screw the pressing bolt 30 out of the screw locking hole 110 of the pressing member 10, so that the pressing member 10 is offset. When the sheet 12 is slightly elastically retracted and retracted, the jamming state against the inner wall surface of the bicycle bundle tube 50 can be released to reposition or replace it, which is quite convenient in operation and use.

Since the bicycle beam tube tightening device of the present invention utilizes the screwing relationship between the adjusting bolt 30 and the pressing member 10, the adjusting sleeve 20 is controlled to be close to or away from the pressing member 10, so that the abutting pieces 12 can be unfolded. On the inner peripheral wall of the bicycle beam tube 50, or slightly loosening the adjusting bolt 30, the abutting pieces 12 are elastically reset and retracted, and can be easily readjusted or removed, without the need for laborious tapping during installation work, saving time. It saves effort and ensures the position and level of the installation, preventing tilting or deformation, and is quite convenient for operation and use.

10‧‧‧forced parts
11‧‧‧Silver lock
110‧‧‧Silver lock hole
12‧‧‧Affinity
20‧‧‧ casing
21‧‧‧Perforation
22‧‧‧ Groove
220‧‧‧Abutment
23‧‧‧ positioning flange
24‧‧‧Pushing against the flange
30‧‧‧Force bolt
31‧‧‧Cylinder
310‧‧‧Set screw holes
311‧‧ Thread segment
32‧‧‧ tying head
320‧‧‧Silver lock groove
50‧‧‧Bicycle beam tube

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing the appearance of a bicycle beam tube pressing device of the present invention. 2 is an exploded perspective view of the bicycle beam tube pressing device of the present invention. Figure 3 is a side cross-sectional view of the bicycle beam tube pressing device of the present invention. 4 is a side cross-sectional view showing the bicycle beam tube pressing device of the present invention installed in a bicycle beam tube. Figure 5 is a side cross-sectional view showing the bicycle beam tube pressing device of the present invention tightening the adjusting bolt so that the abutting pieces are unfolded on the inner wall surface of the bicycle beam tube. Fig. 6 is a side cross-sectional view showing a state in which a conventional pressing member is attached to a bicycle harness.

10‧‧‧forced parts

20‧‧‧ casing

30‧‧‧Force bolt

Claims (10)

A bicycle beam tube pressing device comprises: a pressing member comprising a screw locking portion and at least two abutting pieces, wherein the screw locking portion forms a screwing hole at a center, and the at least two abutting pieces are evenly distributed Formed on the screw lock portion, and the abutting pieces respectively extend outward and obliquely upward; a sleeve abuts against the inner side of the abutting piece of the pressing member, and is on the outer peripheral surface Forming a positioning flange and forming a through hole at a center; and a pressing bolt passing through the through hole of the sleeve and forming a threaded portion screwed to the screw of the screw on the pressing member Within the keyhole, and optionally tightening or unscrewing the pressing member to adjust the abutting tabs against the sleeve to expand or retract from the sleeve. The bicycle beam tube pressing device according to claim 1, wherein the outer diameter of the sleeve is tapered from the top to the bottom, and a pushing flange is protruded from the outer peripheral surface of the bottom portion. The edge abuts against the inner side of the abutting piece of the pressing member. The bicycle beam tube urging device of claim 1 or 2, wherein the urging bolt comprises a cylinder and a spigot, the cylinder is disposed in the perforation of the sleeve, and is in the lower section The threaded section is formed on the outer peripheral surface, and the plug is formed on the top end of the cylinder, and a screw groove is recessed in the top surface. The bicycle beam tube urging device of claim 3, wherein the sleeve forms a groove communicating with the perforation on the top surface, the bottom surface of the groove forming an abutting rim; the pressing bolt The bolt head corresponds to the abutment ring edge of the groove of the sleeve. The bicycle beam tube urging device of claim 4, wherein the screw groove is a star or a hexagonal or quincunx shaped groove. The bicycle beam tube tightening device according to claim 5, wherein the cylinder of the pressing bolt penetrates at a center to form a set of screw holes, and the set screw holes communicate with the screw groove. The bicycle beam tube urging device of claim 6, wherein the pressing member comprises six abutting pieces, and the abutting pieces are respectively formed in a petal shape on an outer circumferential surface of the screw locking portion. . The bicycle beam tube urging device of claim 3, wherein the screw groove is a star or a hexagonal or quincunx shaped groove. The bicycle beam tube pressing device according to claim 3, wherein the cylinder of the pressing bolt penetrates at a center to form a set of screw holes, and the group screw holes communicate with the screw groove. The bicycle beam tube pressing device according to claim 1 or 2, wherein the pressing member comprises six abutting pieces, and the abutting pieces are respectively formed in a petal shape around the outer periphery of the screw locking portion. On the surface.