Integrated bicycle frame with three-section type locking structure

Abstract

The utility model discloses an integrated bicycle frame with a three-section type locking structure, which comprises a bicycle head connecting pipe, an upper cross beam is arranged on one side of the bicycle head connecting pipe, one end of the upper cross beam is fixedly connected onto the bicycle head connecting pipe, a lower cross beam is arranged below the upper cross beam, and one end of the lower cross beam is fixedly connected onto the bicycle head connecting pipe. The other end of the lower cross beam is fixedly connected with a middle pipe, a locking installation pipe is arranged at the upper end of the middle pipe and integrally formed in the middle pipe, a three-section locking piece is arranged in the locking installation pipe, the three-section locking piece is fixedly connected in the locking installation pipe, a seat pipe is arranged in the locking installation pipe, and the seat pipe is connected to one side of the three-section locking piece in a sliding mode. The left rear fork and the right rear fork are arranged on the rear side of the middle pipe and fixedly connected to the middle pipe, the middle pipe and the locking installation pipe are of an integrally-formed structure through integrated arrangement, compared with the mode that specific structural parts are needed for connection in the prior art, locking is more stable through the three sections of locking parts when the seat pipe is locked to work, and the locking effect is better. And the safety guarantee is better.

Description

Technical Field

[0001] This utility model relates to a bicycle frame, specifically an integrated bicycle frame with a three-section locking structure. Background Technology

[0002] Bicycles are a common mode of transportation for short-distance riding, and bicycle seats are generally adjustable. The installation structure of a bicycle seat includes a seat post, a connecting tube, and a locking mechanism. The seat post is inserted into the connecting tube from top to bottom. The locking mechanism is located at the upper end of the connecting tube. After adjusting the depth of the seat post insertion into the connecting tube to achieve a suitable seat height, the locking mechanism secures the seat post and connecting tube, thus fixing them relatively in place and fixing the seat height.

[0003] Existing locking devices are generally retaining rings, which need to be fitted onto the upper end of the connecting tube, taking up a certain amount of space. Furthermore, the upper end of the connecting tube needs to extend beyond the tube, which is not conducive to the streamlined design of the frame, nor to the use of one-piece molded frames. Utility Model Content

[0004] The purpose of this invention is to provide an integrated bicycle frame with a three-section locking structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An integrated bicycle frame with a three-section locking structure is provided. An upper crossbeam is provided on one side of the headstock connecting tube, and one end of the upper crossbeam is fixedly connected to the headstock connecting tube. A lower crossbeam is provided below the upper crossbeam, and one end of the lower crossbeam is fixedly connected to the headstock connecting tube. The other end of the lower crossbeam is fixedly connected to the center tube. A locking mounting tube is provided at the upper end of the center tube. The locking mounting tube is integrally formed with the center tube and has three locking components. The three locking components are fixedly connected in the locking mounting tube. A seat post is provided in the locking mounting tube and is slidably connected to one side of the three locking components. A left rear fork and a right rear fork are provided on the rear side of the center tube and are fixedly connected to the center tube.

[0007] As a further embodiment of this utility model: the three-section locking component includes a first fixing block, a connecting block, a second fixing block, and an adjusting hole. The connecting block is fixedly connected in the locking installation tube. The first fixing block is provided on the upper side of the connecting block and is slidably connected to the connecting block. The second fixing block is provided on the lower side of the connecting block and is slidably connected to the connecting block. The first fixing block is provided with an adjusting hole, which is integrally formed on the first fixing block.

[0008] As a further embodiment of this utility model: the left rear fork includes a left upper fork and a left lower fork, one end of the left upper fork and the left lower fork are fixedly connected to the center tube, the left rear fork is provided with a left mounting hole, the left mounting hole is fixedly connected to the left rear fork, one side of the left mounting hole is provided with a side support mounting hole, the side support mounting hole is fixedly connected to the left rear fork, the left rear fork is provided with a rear wheel left mounting hole, the rear wheel left mounting hole is fixedly connected to the left rear fork, the left rear fork is provided with a brake mounting hole, the brake mounting hole is fixedly connected to the left rear fork.

[0009] As a further embodiment of this utility model: the right rear fork includes a right upper fork and a right lower fork, the right upper fork and the right lower fork are fixedly connected to the center tube, the right rear fork is provided with a rear wheel right mounting hole, the rear wheel right mounting hole is fixedly connected to the right rear fork, the right rear fork is provided with a derailleur mounting hole, the derailleur mounting hole is fixedly connected to the right rear fork.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] The integrated design allows the central tube and locking mounting tube to be molded as a single unit, which is a significant improvement over the previous method that required specific structural components for connection. Furthermore, the three-section locking mechanism ensures a more stable and safer locking mechanism during the operation of the locking seat tube. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of an integrated bicycle frame with a three-section locking structure.

[0013] Figure 2 This is a schematic diagram of the left and right rear forks in an integrated bicycle frame with a three-section locking structure.

[0014] Figure 3 This is a schematic diagram of the locking mechanism in an integrated bicycle frame with a three-section locking structure. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1-3In this embodiment of the utility model, an integrated bicycle frame with a three-section locking structure includes a headstock connecting tube 1, an upper crossbeam 2, a lower crossbeam 3, a center tube 4, a locking mounting tube 5, a three-section locking component 6, a seat post 7, a left rear fork 8, a right rear fork 9, a left hook hole 81, a side stand mounting hole 82, a left rear wheel mounting hole 83, a brake mounting hole 84, a left upper fork 85, a left lower fork 86, a right rear wheel mounting hole 91, a derailleur mounting hole 92, a right upper fork 93, and a right lower fork 94.

[0017] A top crossbeam 2 is provided on one side of the front connecting tube 1. One end of the top crossbeam 2 is fixedly connected to the front connecting tube 1. A bottom crossbeam 3 is provided below the top crossbeam 2. One end of the bottom crossbeam 3 is fixedly connected to the front connecting tube 1. The other end of the bottom crossbeam 3 is fixedly connected to the middle tube 4. A locking mounting tube 5 is provided at the upper end of the middle tube 4. The locking mounting tube 5 is integrally formed with the middle tube 4. Three locking parts 6 are provided in the locking mounting tube 5. The three locking parts 6 are fixedly connected in the locking mounting tube 5. A seat tube 7 is provided in the locking mounting tube 5. The seat tube 7 is slidably connected to one side of the three locking parts 6. A left rear fork 8 and a right rear fork 9 are provided on the rear side of the middle tube 4. The left rear fork 8 and the right rear fork 9 are fixedly connected to the middle tube 4.

[0018] The three-section locking component 6 includes a first fixing block 61, a connecting block 62, a second fixing block 63, and an adjusting hole 64. The connecting block 62 is fixedly connected to the locking mounting tube 5. The first fixing block 61 is provided on the upper side of the connecting block 62 and is slidably connected to the connecting block 62. The second fixing block 63 is provided on the lower side of the connecting block 62 and is slidably connected to the connecting block 62. The first fixing block 61 is provided with an adjusting hole 64, which is integrally formed on the first fixing block 61.

[0019] The left rear fork 8 includes a left upper fork 85 and a left lower fork 86. One end of the left upper fork 85 and the left lower fork 86 is fixedly connected to the center tube 4. The left rear fork 8 is provided with a left mounting hole 81, which is fixedly connected to the left rear fork 9. A side support mounting hole 82 is provided on one side of the left mounting hole 81, which is fixedly connected to the left rear fork 8. The left rear fork 8 is provided with a rear wheel left mounting hole 83, which is fixedly connected to the left rear fork 8. The left rear fork 8 is provided with a brake mounting hole 84, which is fixedly connected to the left rear fork 8.

[0020] The right rear fork 9 includes a right upper fork 93 and a right lower fork 94, which are fixedly connected to the center tube 4. The right rear fork 9 has a rear wheel right mounting hole 91, which is fixedly connected to the right rear fork 9. The right rear fork 9 also has a derailleur mounting hole 91, which is fixedly connected to the right rear fork 9.

[0021] The working principle of this utility model is as follows:

[0022] The integrated design allows the central tube and locking mounting tube 5 to be formed into a single structure, which is different from the previous method that required specific structural components for connection. Furthermore, the three-section locking components 6 ensure more stable locking and better safety when the locking seat tube 7 is in operation.

[0023] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An integrated bicycle frame with a three-section locking structure, comprising a headstock connecting tube (1), an upper crossbeam (2), a lower crossbeam (3), a center tube (4), a locking mounting tube (5), a three-section locking element (6), a seat post (7), a left rear fork (8), and a right rear fork (9), characterized in that, A top crossbeam (2) is provided on one side of the head connector tube (1). One end of the top crossbeam (2) is fixedly connected to the head connector tube (1). A bottom crossbeam (3) is provided below the top crossbeam (2). One end of the bottom crossbeam (3) is fixedly connected to the head connector tube (1). The other end of the bottom crossbeam (3) is fixedly connected to the middle tube (4). A locking mounting tube (5) is provided at the upper end of the middle tube (4). The locking mounting tube (5) is integrally formed in the middle tube (4). Three locking parts (6) are provided in the locking mounting tube (5). The three locking parts (6) are fixedly connected in the locking mounting tube (5). A seat tube (7) is provided in the locking mounting tube (5). The seat tube (7) is slidably connected to one side of the three locking parts (6). A left rear fork (8) and a right rear fork (9) are provided on the rear side of the middle tube (4). The left rear fork (8) and the right rear fork (9) are fixedly connected to the middle tube (4).

2. The integrated bicycle frame with a three-section locking structure according to claim 1, characterized in that, The three-section locking component (6) includes a first fixing block (61), a connecting block (62), a second fixing block (63), and an adjusting hole (64). The connecting block (62) is fixedly connected to the locking mounting tube (5). The first fixing block (61) is provided on the upper side of the connecting block (62), and the first fixing block (61) is slidably connected to the connecting block (62). The second fixing block (63) is provided on the lower side of the connecting block (62), and the second fixing block (63) is slidably connected to the connecting block (62). The first fixing block (61) is provided with an adjusting hole (64), and the adjusting hole (64) is integrally formed on the first fixing block (61).

3. The integrated bicycle frame with a three-section locking structure according to claim 1, characterized in that, The left rear fork (8) includes a left upper fork (85) and a left lower fork (86). One end of the left upper fork (85) and the left lower fork (86) is fixedly connected to the center tube (4). The left rear fork (8) is provided with a left mounting hole (81), which is fixedly connected to the left rear fork (9). A side support mounting hole (82) is provided on one side of the left mounting hole (81), which is fixedly connected to the left rear fork (8). The left rear fork (8) is provided with a rear wheel left mounting hole (83), which is fixedly connected to the left rear fork (8). The left rear fork (8) is provided with a brake mounting hole (84), which is fixedly connected to the left rear fork (8).

4. The integrated bicycle frame with a three-section locking structure according to claim 1, characterized in that, The right rear fork (9) includes a right upper fork (93) and a right lower fork (94). The right upper fork (93) and the right lower fork (94) are fixedly connected to the center tube (4). The right rear fork (9) is provided with a rear wheel right mounting hole (91), which is fixedly connected to the right rear fork (9). The right rear fork (9) is provided with a derailleur mounting hole (91), which is fixedly connected to the right rear fork (9).

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