CN216401652U

CN216401652U - Welding structure for reinforcing sheet of bicycle

Info

Publication number: CN216401652U
Application number: CN202220002087.6U
Authority: CN
Inventors: 田靖; 胡雪阳
Original assignee: Jinhuixing Shenzhen Technology Co ltd
Current assignee: Jinhuixing Shenzhen Technology Co ltd
Priority date: 2022-01-04
Filing date: 2022-01-04
Publication date: 2022-04-29
Anticipated expiration: 2032-01-04

Abstract

The utility model discloses a welding structure of a bicycle reinforcing sheet, which comprises a seat pipe and a main beam pipe obliquely connected with the seat pipe, wherein an upper reinforcing sheet and a lower reinforcing sheet are arranged between the seat pipe and the main beam pipe from top to bottom, two sides of the upper end surface of the upper reinforcing sheet are respectively provided with a first chamfer and a second chamfer, the first chamfer and the second chamfer are respectively provided with a first welding bead and a second welding bead, two sides of the lower end surface of the lower reinforcing sheet are respectively provided with a third chamfer and a fourth chamfer, and the third chamfer and the fourth chamfer are respectively provided with a third welding bead and a fourth welding bead. The utility model is provided with the upper reinforcing sheet and the lower reinforcing sheet, replaces the mode of a single reinforcing sheet in the prior art, is additionally provided with the first, second, third and fourth chamfers, and welds the chamfers to form the first, second, third and fourth welding beads, thereby increasing the welding surface, strengthening the welding strength and leading the arc-shaped welding bead to be more beautiful.

Description

Welding structure for reinforcing sheet of bicycle

Technical Field

The utility model relates to the technical field of bicycles, in particular to a bicycle reinforcing sheet welding structure.

Background

In the production process of the bicycle, in order to strengthen the structural strength between the seat tube and the main beam tube and avoid overlarge stress borne by the main beam tube, a reinforcing sheet is welded between the seat tube and the main beam tube so as to strengthen the overall structural strength. The existing reinforcing sheet is only provided with a welding bead at the joint of the reinforcing sheet and the seat pipe and the main beam pipe, the welding surface is small, and the existing reinforcing sheet is not beautiful enough because of the formation of a bulge.

Therefore, we propose a welding structure of the reinforcing plate of the bicycle to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a welding structure for a bicycle reinforcing panel to solve the problems set forth in the background art.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a bicycle reinforcement welding structure, includes seat pipe and the girder pipe of being connected with seat pipe slope, be provided with reinforcement and lower reinforcement from top to bottom between seat pipe and the girder pipe, the up end both sides of going up the reinforcement are equipped with corner cut one respectively and corner cut two, corner cut one is equipped with welding bead one respectively with corner cut two punishment and welding bead two, the lower terminal surface both sides of reinforcement are equipped with corner cut three respectively with corner cut four, corner cut three is equipped with welding bead three respectively with corner cut four punishment.

Preferably, the first welding bead, the second welding bead, the third welding bead and the fourth welding bead are all subjected to rounding arc grinding treatment.

Preferably, a fifth weld bead is arranged at the front-rear joint of the upper reinforcing sheet and the lower reinforcing sheet.

Preferably, the seat pipe, the main beam pipe, the upper reinforcing sheet and the lower reinforcing sheet form a hollow groove, a first through hole and a second through hole are respectively formed in the corresponding positions of the seat pipe and the main beam pipe in the hollow groove, a connecting rod penetrates through the first through hole, the second through hole and the hollow groove, two ends of the connecting rod are respectively connected with a limiting ball, and the diameter of the limiting ball is larger than the maximum inner wall distance of the first through hole and the second through hole.

Preferably, the inclination angles of the first through hole and the second through hole are the same as the inclination angles of the hollow groove.

Preferably, the limiting ball is in braze welding connection with the connecting rod, and the limiting ball is in braze welding connection with the connecting rod.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model is provided with the upper reinforcing sheet and the lower reinforcing sheet, replaces the mode of a single reinforcing sheet in the prior art, is additionally provided with the first, second, third and fourth chamfers, and welds the chamfers to form the first, second, third and fourth welding beads, thereby increasing the welding surface, strengthening the welding strength and leading the arc-shaped welding bead to be more beautiful.

Drawings

FIG. 1 is a three-dimensional structural view of a welded structure of a bicycle reinforcing plate according to the present invention;

FIG. 2 is a front sectional view of a welded structure of a bicycle reinforcing plate according to the present invention;

fig. 3 is an enlarged schematic view of a portion a in fig. 2.

In the figure: the steel pipe comprises a base pipe 1, a main beam pipe 2, an upper stiffening sheet 3, a lower stiffening sheet 4, a first welding bead 5, a second welding bead 6, a third welding bead 7, a fourth welding bead 8, a fifth welding bead 9, a hollow groove 10, a first through hole 11, a second through hole 12, a limiting ball 13 and a connecting rod 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, a bicycle stiffening sheet welding structure comprises a seat tube 1 and a main beam tube 2 obliquely connected with the seat tube 1, wherein the seat tube 1 and the main beam tube 2 are inherent structures in the prior art, an upper stiffening sheet 3 and a lower stiffening sheet 4 are arranged between the seat tube 1 and the main beam tube 2 from top to bottom, the upper stiffening sheet 3 and the lower stiffening sheet 4 are both arc-shaped structures, a first chamfer and a second chamfer are respectively arranged on two sides of the upper end surface of the upper stiffening sheet 3, a first weld bead 5 and a second weld bead 6 are respectively arranged at the first chamfer and the second chamfer, a third chamfer and a fourth chamfer are respectively arranged on two sides of the lower end surface of the lower stiffening sheet 4, a third weld bead 7 and a fourth weld bead 8 are respectively arranged at the third chamfer and the fourth chamfer, the first weld bead 5, the second weld bead 6, the third weld bead 7 and the fourth weld bead 8 are all subjected to arc grinding treatment, and a fifth weld bead 9 is arranged at the front-back connection position of the upper stiffening sheet 3 and the lower stiffening sheet 4.

The utility model is provided with the upper reinforcing sheet 3 and the lower reinforcing sheet 4, replaces the mode of a single reinforcing sheet in the prior art, is additionally provided with the first, second, third and fourth chamfers, and welds the chamfers to form the first, second, third and fourth welding beads, thereby increasing the welding surface, strengthening the welding strength and leading the arc-shaped welding bead to be more beautiful.

Seat pipe 1, girder pipe 2, go up reinforcement 3, this one formation cavity groove 10 of lower reinforcement 4, through-hole 11 and through-hole two 12 have been seted up respectively to seat pipe 1 and girder pipe 2 in the corresponding position of cavity groove 10, through-hole 11, the inclination of through-hole two 12 and cavity groove is the same, the connecting rod 14 of being convenient for stretches into, through-hole 11, connecting rod 14 wears to be equipped with in through-hole two 12 and the cavity groove 10, the both ends of connecting rod 14 all are connected with spacing ball 13, spacing ball 13 is connected with connecting rod 14 with brazing, for the welding mode that has now, and the diameter of spacing ball 13 is greater than through-hole 11, the biggest inner wall distance of through-hole two 12, play the tractive effect through spacing ball 13.

Before welding the upper reinforcing sheet 3 and the lower reinforcing sheet 4, a through hole I11 and a through hole II 12 are arranged at the positions of the upper reinforcing sheet 3 and the lower reinforcing sheet 4 corresponding to the seat pipe 1 and the main beam pipe 2, a connecting rod 14 is inserted into the through hole I11 and the through hole II 12, a limiting ball 13 is stably placed in the seat pipe 1 and the main beam pipe 2, the limiting ball 13 and the connecting rod 14 are brazed, the seat pipe 1 and the main beam pipe 2 are mutually pulled through the limiting ball 13 and the connecting rod 14, the connecting effect is further strengthened, and the service life of a welding bead is prolonged.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a bicycle reinforcement piece welded structure, includes seat pipe (1) and main beam pipe (2) of being connected with seat pipe (1) slope, its characterized in that: be provided with reinforcement piece (3) and lower reinforcement piece (4) from top to bottom between seat pipe (1) and girder pipe (2), the up end both sides of going up reinforcement piece (3) are equipped with corner cut one and corner cut two respectively, corner cut one is equipped with welding bead one (5) and welding bead two (6) respectively with two punishment of corner cut, the lower terminal surface both sides of reinforcement piece (4) are equipped with corner cut three respectively and corner cut four, corner cut three is equipped with welding bead three (7) and welding bead four (8) respectively with corner cut four places.

2. The bicycle reinforcing patch welded structure according to claim 1, wherein: and the first welding bead (5), the second welding bead (6), the third welding bead (7) and the fourth welding bead (8) are all subjected to inverted arc grinding treatment.

3. The bicycle reinforcing patch welded structure according to claim 1, wherein: and a welding bead five (9) is arranged at the front and rear connecting part of the upper reinforcing sheet (3) and the lower reinforcing sheet (4).

4. The bicycle reinforcing patch welded structure according to claim 1, wherein: the seat pipe (1), the main beam pipe (2), the upper reinforcing sheet (3) and the lower reinforcing sheet (4) form a hollow groove (10), a first through hole (11) and a second through hole (12) are respectively formed in the corresponding positions of the hollow groove (10) of the seat pipe (1) and the main beam pipe (2), a connecting rod (14) is arranged in the first through hole (11), the second through hole (12) and the hollow groove (10) in a penetrating mode, the two ends of the connecting rod (14) are connected with limiting balls (13), and the diameter of the limiting balls (13) is larger than the maximum inner wall distance of the first through hole (11) and the second through hole (12).

5. The bicycle reinforcing patch welded structure according to claim 4, wherein: the inclination angles of the first through hole (11), the second through hole (12) and the hollow groove are the same.

6. The bicycle reinforcing patch welded structure according to claim 4, wherein: the limiting ball (13) is connected with the connecting rod (14) in a brazing mode.