Detachable and foldable upper pipe structure and bicycle thereof

Abstract

The detachable and foldable upper pipe structure comprises a bicycle front support and a saddle mounting plate, the top end of the bicycle front support is fixedly connected with a reversing shaft sleeve, the outer wall of one side of the reversing shaft sleeve is fixedly connected with a connecting seat, a pin shaft is arranged in the connecting seat, and a rotary clamping seat is rotationally arranged outside the connecting seat through the pin shaft; one end of the rotary clamping base is fixedly connected with an upper pipe, a connecting sleeve is fixed to the end, away from the connecting base, of the upper pipe, and an integrally-formed cup holder is fixedly arranged at the position, close to the connecting sleeve, of the upper pipe. The connecting base, the pin shaft and the rotating clamping base are adopted, the front end of the upper pipe can be rotationally connected, the rear end of the upper pipe can be detachably connected through the rotating block, the connecting block and the spring indexing pin, and therefore the upper pipe can be rotationally folded, a rider can conveniently use the bicycle, and the bicycle is more convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to bicycle technical field, concretely relates to detachable foldable upper tube structure and its bicycle. BACKGROUND

[0002] Bicycle is also called pedaling car or bicycle, is a kind of mechanical transmission with human power and is a kind of vehicle for walking and carrying. Bicycle is driven by human power pedaling, at least has two wheels, and is a kind of land transport tool using handlebar and front fork to turn. There is a triangular frame part, which is made of steel or light alloy.

[0003] But the upper tube structure of the general bicycle frame does not have the folding function, so that the upper tube and the frame are fixed structure when leaving factory, when the rider gets on or off the bicycle, the leg needs to be stepped over from the rear side of saddle or the top of upper tube, which is extremely inconvenient for some riders. Therefore, it is urgent to design detachable foldable upper tube structure and its bicycle to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims at providing detachable foldable upper tube structure and its bicycle to solve the above deficiencies in the prior art.

[0005] In order to achieve the above object, the utility model provides the following technical scheme:

[0006] The detachable foldable upper tube structure includes front support and saddle mounting plate, the top end of the front support is fixedly connected with reversing shaft sleeve pipe, the side outer wall of the reversing shaft sleeve pipe is fixedly connected with connecting seat, the inside of the connecting seat is provided with pin shaft, and the outside of the connecting seat is provided with rotating clamping base by pin shaft rotation.

[0007] One end of the rotating clamping base is fixedly connected with upper tube, the end, away from the connecting seat, of the upper tube is fixedly connected with connecting sleeve, and the position, close to the connecting sleeve, of the upper tube is fixedly provided with integrally formed cup holder.

[0008] The side outer wall of the saddle mounting plate is fixedly provided with connecting block, the outside of the side of the connecting block is sleeved with rotating block, and the two sides of the connecting block and rotating block are provided with spring index pin.

[0009] Preferably, the top outer wall of the upper tube is provided with a plurality of mounting screws.

[0010] Preferably, the bottom end of the front support is fixedly connected with gear disc sleeve pipe, and the other side of the gear disc sleeve pipe is fixedly provided with rear support.

[0011] Preferably, the rear support, front support, saddle mounting plate and upper tube form a triangular structure.

[0012] Preferably, the top of the saddle mounting plate is provided with a mounting groove, and the inside of the mounting groove is provided with a lifting support, and the upper side of the saddle mounting plate is connected with a saddle through the lifting support.

[0013] Preferably, the end of the saddle mounting plate is fixedly connected with a handle above the end, and the two side corners of the handle are circularly transitioned.

[0014] The bicycle comprises the detachable and foldable upper tube structure.

[0015] In the above technical solution, the detachable and foldable upper tube structure and the bicycle thereof have the following beneficial effects:

[0016] The connecting seat, the pin shaft and the rotating clamping seat are adopted to realize the rotating connection of the front end of the upper tube, and the rotating block, the connecting block and the spring indexing pin are adopted to realize the detachable connection of the rear end of the upper tube, so that the rotating and folding of the upper tube are realized, and the use of the bicycle by a rider is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings needed to be used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art according to these drawings.

[0018] Figure 1 The structure schematic diagram provided for the detachable and foldable upper tube structure and the bicycle thereof is provided.

[0019] Figure 2 The upper tube folding state structure schematic diagram provided for the detachable and foldable upper tube structure and the bicycle thereof is provided. Figure One .

[0020] Figure 3 The upper tube folding state structure schematic diagram provided for the detachable and foldable upper tube structure and the bicycle thereof is provided. Figure Two .

[0021] Figure 4 The sectional structure schematic diagram provided for the detachable and foldable upper tube structure and the bicycle thereof is provided.

[0022] 1, front support; 2, reversing shaft sleeve; 3, connecting seat; 4, pin shaft; 5, rotating clamping seat; 6, upper tube; 7, mounting screw; 8, cup holder; 9, connecting sleeve; 10, rotating block; 11, connecting block; 12, spring indexing pin; 13, toothed disc sleeve; 14, rear support; 15, saddle mounting plate; 16, saddle; 17, handle; 18, lifting support. DETAILED DESCRIPTION

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] like Figures 1-4 As shown, the detachable and foldable upper tube structure provided in this embodiment of the utility model includes a front support 1 and a saddle mounting plate 15. A reversing shaft sleeve 2 is fixedly connected to the top of the front support 1. A connecting seat 3 is fixedly connected to one side of the outer wall of the reversing shaft sleeve 2. A pin 4 is provided inside the connecting seat 3. A rotating bracket 5 is rotatably provided outside the connecting seat 3 through the pin 4. An upper tube 6 is fixedly connected to one end of the rotating bracket 5. A connecting sleeve 9 is fixed to the end of the upper tube 6 away from the connecting seat 3. An integrally formed cup holder 8 is fixedly provided on the upper tube 6 near the connecting sleeve 9. A connecting block 11 is fixedly provided on one side of the outer wall of the saddle mounting plate 15. A rotating block 10 is sleeved on one side of the connecting block 11. Spring indexing pins 12 are provided on both sides of the connecting block 11 and the rotating block 10.

[0025] In this embodiment, a front support 1 and a saddle mounting plate 15 are included. A reversing shaft sleeve 2 is fixedly connected to the top of the front support 1. The reversing shaft is inserted into the reversing shaft sleeve 2 to achieve the connection of the reversing shaft. A front wheel is set at the bottom of the reversing shaft. A connecting seat 3 is fixedly connected to one side of the outer wall of the reversing shaft sleeve 2. A pin 4 is set inside the connecting seat 3. A rotating bracket 5 is rotatably set outside the connecting seat 3 through the pin 4. The rotating bracket 5 can rotate on the connecting seat 3 through the pin 4, thereby driving the upper tube 6 to rotate and achieve the purpose of folding.

[0026] In this embodiment, one end of the rotating card holder 5 is fixedly connected to the upper tube 6, the end of the upper tube 6 away from the connecting seat 3 is fixedly connected to the connecting sleeve 9, and an integrally formed cup holder 8 is fixedly provided on the upper tube 6 near the connecting sleeve 9. The inside of the cup holder 8 is hollow, so that when the upper tube 6 is installed horizontally, the cup can be placed inside the cup holder 8, which is convenient for the rider to store the cup.

[0027] In this embodiment, a connecting block 11 is fixedly installed on one outer wall of the saddle mounting plate 15. A rotating block 10 is sleeved on one side of the connecting block 11. Spring indexing pins 12 are provided on both sides of the connecting block 11 and the rotating block 10. The rotating block 10 can be fixedly installed inside the connecting block 11 through the spring indexing pins 12, so as to achieve a fixed connection to the rear end of the upper tube 6. After removing the spring indexing pins 12, the rotating block 10 can be removed from the connecting block 11, so that the upper tube 6 fits against the front support 1 of the vehicle.

[0028] In this embodiment, a number of mounting screws 7 are provided on the top outer wall of the upper tube 6. The mounting screws 7 can be used to fix structures such as storage racks, making it convenient for riders to carry items.

[0029] The bottom end of the front support 1 is fixedly connected with a gear disc sleeve 13, and the other side of the gear disc sleeve 13 is fixedly connected with a rear support 14.

[0030] Specifically, the rear support 14, the front support 1, the saddle mounting plate 15 and the upper tube 6 form a triangular structure to support the frame structure, the front wheel is installed at the front of the frame structure, the rear wheel is installed at the rear of the frame structure, the riding sprocket and the pedal are arranged at the bottom of the frame structure.

[0031] In the embodiment, the top of the saddle mounting plate 15 is provided with a mounting groove, and the inside of the mounting groove is provided with a lifting support 18, the saddle 16 is connected above the saddle mounting plate 15 through the lifting support 18, the height of the saddle 16 can be adjusted through the lifting support 18, and the lifting support 18 adopts a parallelogram lifting principle.

[0032] In the embodiment, the end of the saddle mounting plate 15 is fixedly connected with a handle 17 above the end, and the two corner sides of the handle 17 are circularly transitioned, the handle 17 can be used to hang articles and is convenient for a rider to hold.

[0033] The bicycle comprises the detachable and foldable upper tube structure of any one of the above.

[0034] The above only describes certain exemplary embodiments of the utility model by way of illustration, and it is needless to say that the described embodiments can be modified in various manners without departing from the spirit and scope of the utility model for ordinary skilled in the art. Therefore, the above drawings and description are illustrative in nature and should not be understood as limiting the scope of protection of the utility model claims.

Claims

1. A detachable and foldable upper tube structure, including a front support (1) and a saddle mounting plate (15), characterized in that, The top of the front support (1) is fixedly connected to a reversing shaft sleeve (2), and a connecting seat (3) is fixedly connected to one side of the outer wall of the reversing shaft sleeve (2). A pin (4) is provided inside the connecting seat (3), and a rotating bracket (5) is rotatably provided outside the connecting seat (3) through the pin (4). One end of the rotating card holder (5) is fixedly connected to an upper tube (6), and the end of the upper tube (6) away from the connecting seat (3) is fixedly connected to a connecting sleeve (9). An integrally formed cup holder (8) is fixedly installed on the upper tube (6) near the connecting sleeve (9). A connecting block (11) is fixedly installed on one side of the outer wall of the saddle mounting plate (15). A rotating block (10) is sleeved on one side of the connecting block (11). Spring indexing pins (12) are provided on both sides of the connecting block (11) and the rotating block (10).

2. The detachable and foldable upper tube structure according to claim 1, characterized in that, Several mounting screws (7) are provided on the top outer wall of the upper tube (6).

3. The detachable and foldable upper tube structure according to claim 1, characterized in that, The bottom end of the front support (1) is fixedly connected to a gear sleeve (13), and the other side of the gear sleeve (13) is fixed to a rear support (14).

4. The detachable and foldable upper tube structure according to claim 3, characterized in that, The rear support (14), the front support (1), the saddle mounting plate (15), and the upper tube (6) form a triangular structure.

5. The detachable and foldable upper tube structure according to claim 1, characterized in that, The top of the saddle mounting plate (15) is provided with a mounting groove, and a lifting bracket (18) is provided inside the mounting groove. The saddle (16) is connected above the saddle mounting plate (15) through the lifting bracket (18).

6. The detachable and foldable upper tube structure according to claim 1, characterized in that, A handle (17) is fixedly connected to the upper end of the saddle mounting plate (15), and the two corners of the handle (17) are rounded.

7. A bicycle, characterized in that, Includes the detachable and foldable upper tube structure as described in any one of claims 1-6.

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