CN213892734U

CN213892734U - Bicycle seat tube mounting structure

Info

Publication number: CN213892734U
Application number: CN202022485051.1U
Authority: CN
Inventors: 廖学金
Original assignee: Shenzhen Hl Health Industry Development Co ltd
Current assignee: Shenzhen Hl Health Industry Development Co ltd; HL Corp Shenzhen Co Ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-08-06
Anticipated expiration: 2030-10-30

Abstract

An embodiment of the utility model provides a bicycle seat pipe mounting structure, including seat pipe, bicycle frame pipe and quick detach locking structure, quick detach locking structure includes again: the integrated seat beam tube comprises a main tube body and a pair of beam ears, wherein the bottom end of the main tube body is inserted into the frame tube, the inner cavity of the main tube body is used for inserting the seat tube, the pair of beam ears are integrally formed outside the tube wall at the top end of the main tube body, a cutting groove is formed in the tube wall of the main tube body, the pair of beam ears are symmetrically formed on two opposite sides of the cutting groove and extend out of the main tube body, a plurality of symmetrically distributed slotted holes are formed in the tube wall of the main tube body, and mounting grooves and mounting holes are correspondingly formed in the beam ears; and the screw type locking mechanism is assembled in the mounting grooves and the mounting holes of the pair of the binding lugs to drive the pair of the binding lugs to move oppositely. The embodiment of the utility model provides a constitute the major structure of quick detach locking structure through adopting integral type seat beam tube, the structure is succinct, conveniently makes and assembles, is favorable to reduce cost, is responsible for the inside slotted hole of seting up of body pipe wall and can lighten weight and reduce material cost.

Description

Bicycle seat tube mounting structure

Technical Field

An embodiment of the utility model provides a relate to bicycle accessory technical field, especially relate to a bicycle seat pipe mounting structure.

Background

When the seat cushion is assembled, the seat tube at the bottom end of the seat cushion is fixed to the top end of the frame tube by using a quick-release locking structure. The seat tube mounting structure mainly comprises a seat tube, a frame tube and a quick-release locking structure for connecting the seat tube and the frame tube, wherein the quick-release locking structure further comprises a sleeve, a seat bundle assembled at one end of the sleeve and coaxially arranged with the sleeve, and a spiral locking mechanism for adjusting the seat bundle so as to correspondingly contract or expand the inner diameter of the seat bundle. When the seat tube is assembled, the bottom end of the sleeve is inserted into the top end of the frame tube until the seat bundle abuts against the end face of the frame tube, the sleeve and the frame tube are correspondingly locked by screws, at the moment, the sleeve and the seat bundle are coaxial with the frame tube, the seat tube fixed with the seat cushion is sequentially inserted into the seat bundle, the sleeve and the frame tube, the seat tube can be clamped by reducing the inner diameter of the seat bundle through operating the spiral locking mechanism, the assembly is realized, when the seat tube needs to be disassembled, the seat bundle can not be clamped again by reversely operating the spiral locking mechanism, and therefore the insertion depth of the seat tube relative to the frame tube can be conveniently adjusted. The sleeve and the seat bundle of the quick-release locking structure are of a split structure, the structure is relatively complex, and in actual production, the sleeve and the seat bundle need to be respectively processed and molded and then assembled, so that the manufacturing and assembling cost is relatively high.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a technical problem who solves provides a bicycle seat pipe mounting structure, and its structure is succinct, convenient equipment, and the cost is lower relatively.

In order to solve the technical problem, an embodiment of the utility model provides a following technical scheme: the utility model provides a bicycle seat pipe mounting structure, includes seat pipe, frame pipe and is used for connecting the quick detach locking structure of seat pipe and frame pipe, wherein, quick detach locking structure includes again:

the integrated seat beam tube comprises a main tube body and a pair of beam ears, wherein the bottom end of the main tube body is inserted into the frame tube, the inner cavity of the main tube body is used for inserting the seat tube, the pair of beam ears are integrally formed outside the tube wall at the top end of the main tube body, a split groove which penetrates through the tube wall and extends to a preset length from the top end surface of the main tube body to the opposite other end along the axial direction of the main tube body is formed in the tube wall of the main tube body, the pair of beam ears are symmetrically formed in the tube walls at two opposite sides of the split groove and extend out of the main tube body, a plurality of slotted holes which are symmetrically distributed are formed in the tube wall of the main tube body and penetrate through the main tube body along the axial direction, and mounting grooves and mounting holes are correspondingly formed in the beam ears; and

and the screw type locking mechanism is assembled in the mounting grooves and the mounting holes of the pair of the binding lugs to drive the pair of the binding lugs to move oppositely.

Further, the integrated seat beam tube is formed by cutting and processing a section tube.

Furthermore, the opposite side walls of the pair of lugs are flush with the side walls of the groove, and the top end faces of the lugs in the axial direction are flush with the top end face of the main pipe body.

Furthermore, the bottom end of the main pipe body is also provided with a locking screw hole, and after the bottom end of the main pipe body is inserted into the frame pipe, a locking screw penetrates through the wall of the frame pipe and is screwed in the locking screw hole.

Furthermore, the seat tube has the same thickness at each position, at least one groove which is sunken towards the inside of the seat tube and axially extends through the whole seat tube is formed on the tube wall of the seat tube, and when the seat tube is inserted into the main tube body, the inner end part of the locking screw is also inserted into the groove.

Furthermore, a limiting column which is used for limiting the maximum insertion depth of the seat tube in a matching mode with the locking screw when the depth of the seat tube inserted into the main tube body is adjusted is assembled in the groove.

Further, the top end of the main pipe body is thicker than the bottom end.

After the technical scheme is adopted, the embodiment of the utility model provides an at least, following beneficial effect has: the embodiment of the utility model adopts the integrated seat beam tube, avoids respectively manufacturing and reassembling the sleeve and the seat beam in the prior art, has very simple structure, is convenient to manufacture and assemble, and is beneficial to reducing the cost; in addition, a plurality of slotted holes are formed in the pipe wall of the main pipe body, so that the weight can be reduced, the trend and the requirement of light weight design of the whole bicycle can be met, and the material cost can be effectively reduced.

Drawings

Fig. 1 is a schematic structural view showing a disassembled state of an alternative embodiment of the bicycle seat tube mounting structure of the present invention.

Fig. 2 is a schematic structural view showing an alternative embodiment of the bicycle seat tube mounting structure in a combined state.

Fig. 3 is a schematic sectional view of an alternative embodiment of the bicycle seat tube mounting structure of the present invention in a combined state.

Detailed Description

The present application will now be described in further detail with reference to the accompanying drawings and specific examples. It is to be understood that the following illustrative embodiments and description are only intended to illustrate the present invention, and are not intended to limit the present invention, and features in the embodiments and examples may be combined with each other in the present application without conflict.

As shown in fig. 1 to 3, an optional embodiment of the present invention provides a bicycle seat tube mounting structure, comprising a seat tube 3, a frame tube 4 and a quick release locking structure (not numbered in the drawings) for connecting the seat tube 3 and the frame tube 4, wherein the quick release locking structure further comprises:

the integrated seat bundle tube 1 comprises a main tube body 10 and a pair of bundle ears 12 integrally formed on the outer portion of a tube wall of a top end 101 of the main tube body 10, wherein a split groove 102 penetrating through the tube wall and extending from the end surface of the top end 101 of the main tube body 10 to the opposite end along the axial direction of the main tube body 10 is formed in the tube wall of the main tube body 10 by a predetermined length, the pair of bundle ears 12 are symmetrically formed on the tube walls on the opposite sides of the split groove 102 and extend out of the main tube body 10, a plurality of slotted holes 104 are formed in the tube wall of the main tube body 10 and are symmetrically distributed and axially penetrate through the main tube body 10, and mounting grooves 120 and mounting holes 122 are correspondingly formed in the bundle ears 12; and

and the screw type locking mechanism 2 is assembled in the mounting grooves 120 and the mounting holes 122 of the pair of lugs 12 to drive the pair of lugs 12 to move towards each other.

The embodiment of the utility model adopts the integrated seat beam tube 1 to form the main structure of the quick-release locking structure, thereby avoiding manufacturing and reassembling the sleeve and the seat beam in the prior art respectively, having very simple structure, being convenient to manufacture and assemble and being beneficial to reducing the cost; in addition, a plurality of slots 104 are formed in the tube wall of the main tube 10, so that the weight can be reduced, the trend and the requirement of light weight design of the whole bicycle can be met, and the material cost can be effectively reduced. It should be noted that the spiral locking mechanism 2 has been widely used in the field of bicycles, and various existing spiral locking mechanisms 2 can be directly adopted in the present application, so the specific structure of the spiral locking mechanism 2 and the assembling manner and structure of the spiral locking mechanism 2 and the ear 12 are not described again here.

In an optional embodiment of the present invention, the integrated seat beam tube 1 is formed by cutting a profile tube. This embodiment utilizes section bar pipe cutting process to make integral type seat beam tube 1, is favorable to promoting the machining precision, reduces the processing degree of difficulty to reduce manufacturing cost. In specific implementation, due to the characteristics of the profile pipe, the outer part of the pipe wall of the profile pipe is provided with a pair of lugs continuously extending along the axial direction, and the integral seat bundle pipe 1 can be obtained by cutting the profile pipe according to a preset length and truncating the lugs to form the bundle lugs 12. In the design and manufacture of some section pipes, the pipe walls between the two lugs are connected into a whole, and at this time, when the integral bundle seat pipe 1 is processed by using the section pipes, the pipe walls between the two lugs on the two sides need to be further cut to form the cut grooves 102. It should be understood that the groove 102 may be formed when the profile tube is formed, and the step of cutting and forming the groove 102 is not required, and in this case, the groove 102 extends through the entire integrated bundle tube 1 in the axial direction.

In another alternative embodiment of the present invention, as shown in fig. 1, the opposite side walls 124 of the pair of fastening lugs 12 are flush with the groove side walls of the cutting groove 102, respectively, and the top end surfaces of the pair of fastening lugs 12 in the axial direction are flush with the top end surface of the main pipe 10. In the embodiment, the mutually opposite side walls 124 of the pair of lugs 12 are designed to be flush with the groove side walls of the sectional groove 102, so that the structure is more compact.

In another optional embodiment of the present invention, the bottom end of the main pipe 10 is further provided with a locking screw hole 106, and after the bottom end of the main pipe 1 is inserted into the frame tube 4, a locking screw 13 passes through the wall of the frame tube 4 and is screwed into the locking screw hole 106. In this embodiment, the locking screw hole 106 is formed at the bottom end of the main tube 10, so that when the main tube 10 is inserted into the corresponding frame tube 3, the integrated seat beam tube 1 can be locked to the frame tube 4 by the corresponding locking screw 13, thereby preventing the quick release locking structure from being completely detached from the bicycle.

In another optional embodiment of the present invention, as shown in fig. 2 and 3, the seat tube 3 has the same thickness, at least one groove 30 is formed on the tube wall of the seat tube 3, which is recessed inside the seat tube 3 and extends axially to penetrate the whole seat tube, and when the seat tube 3 is inserted into the main tube 10, the inner end of the locking screw 13 is further inserted into the groove 30. The embodiment can adopt the seat tube 3 with the same thickness at each position, and does not need to perform pipe contracting treatment on one end of the seat tube 3, thereby simplifying the processing procedure and being beneficial to reducing the manufacturing cost, and when the seat tube 3 is inserted into the main tube body 10, the inner end part of the locking screw 13 is correspondingly inserted into the groove 30, thereby effectively preventing the seat tube 3 from rotating around the central axis in the main tube body 10.

In another optional embodiment of the present invention, as shown in fig. 2 and 3, a limiting column 32 is further assembled in the groove 30 for cooperating with the locking screw 13 to limit the maximum insertion depth of the seat tube 3 when adjusting the insertion depth of the seat tube 3 into the main tube 10. In the embodiment, the limiting column 32 is further arranged in the groove 30, so that when the depth of the seat pipe 3 inserted into the main pipe body 10 is adjusted, the maximum insertion depth of the seat pipe 3 is effectively limited by the matching of the limiting column 32 and the locking screw 13 inserted into the groove 30, and the seat pipe is simple in structure and convenient to assemble and operate. In specific implementation, a screw hole (not numbered) is formed in the groove 30, and a screw is locked in the screw hole, and the part of the screw left in the groove 30 plays the role of the limiting column 32.

In yet another alternative embodiment of the present invention, the top end 101 of the main tube 10 is thicker than the bottom end 104. In specific implementation, the wall thickness of the tube wall of the bottom end 104 can be reduced by machining the seat bundle tube blank obtained by cutting. By forming two sections of different thicknesses, the thinner bottom end 104 can be inserted into the corresponding frame tube 4, and the thicker top end 104 can abut against the end face of the frame tube 4 to realize limiting, so that the assembly can be quickly carried out in place during assembly.

The embodiments of the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many changes without departing from the spirit and the scope of the invention as claimed.

Claims

1. The utility model provides a bicycle seat pipe mounting structure, includes seat pipe, frame pipe and is used for connecting the quick detach locking structure of seat pipe and frame pipe, its characterized in that, quick detach locking structure includes again:

2. A bicycle seat tube mounting arrangement according to claim 1, wherein said integral seat bundle tube is cut from a profile tube.

3. A bicycle seat tube mounting structure in accordance with claim 1, wherein mutually facing side walls of said pair of lugs are flush with groove side walls of said cutaway groove, respectively, and top end surfaces of said pair of lugs in said axial direction are flush with a top end surface of said main tube body.

4. The bicycle seat tube mounting structure of claim 1, wherein a locking screw hole is further formed at a bottom end of the main tube, and after the bottom end of the main tube is inserted into the frame tube, a locking screw penetrates through a wall of the frame tube and is screwed into the locking screw hole.

5. A bicycle seat tube mounting arrangement according to claim 4, wherein the seat tube has a uniform thickness throughout, the seat tube wall defining at least one recess that is recessed into the seat tube and extends axially through the entire seat tube, the inner end of the locking screw being inserted into the recess when the seat tube is inserted into the main tube body.

6. A seat tube mounting structure for bicycles of claim 5, wherein a stopper post for limiting the maximum insertion depth of the seat tube in cooperation with the locking screw when adjusting the depth of the seat tube inserted into the main tube is further assembled in the groove.

7. A bicycle seat tube mounting arrangement according to claim 1, wherein the top end of the primary tube is thicker than the bottom end.