Folding joint for folding bicycle

Abstract

The utility model relates to the technical field of folding bicycles, and discloses a folding connector for a folding bicycle, which comprises a flat car main body and a flat car handrail movably mounted above the flat car main body, and a folding component is mounted at the joint of the flat car main body and the flat car handrail. By arranging the folding assembly and the negative pressure assembly, a worker can control the air pressure in the sealing cylinder and adjust the sliding of the first fluted disc only by stepping on a handle with feet, and by means of the meshing mode of the first fluted disc and the second fluted disc, the flat car handrail can be used in a multi-angle positioning mode; whether the angle of the handrail needs to be adjusted to facilitate operation when goods are carried in a narrow warehouse channel or the angle of the handrail needs to be changed to adapt to a pushing posture in different use scenes such as a flat road surface and a slope road surface, the operation can be conveniently achieved, a user can conveniently plan a carrying route and an operation mode in advance, and the carrying efficiency is improved. And the operation safety is further improved.

Description

Technical Field

[0001] This utility model relates to the field of folding bicycle technology, and more specifically to a folding connector for folding bicycles. Background Technology

[0002] A folding flatbed truck is a transport vehicle with a flat cargo area that can be folded and stored. It typically consists of a frame, a flatbed, wheels, and handrails. The frame is generally made of metal, such as aluminum alloy or steel, to ensure sufficient strength to support the weight of the goods. The flatbed is used to place the goods, the wheels facilitate vehicle movement, and the handrails are used to push and control the direction of the flatbed truck.

[0003] Traditional flatbed carts have specific procedures and characteristics for operating the handrails. When folding the handrail, the worker must step down on the positioning rod to disengage it from the handrail, allowing the handrail to rotate freely for easy folding. When unfolding, the worker first steps on the positioning rod and then lifts the handrail upwards. Once the handrail is rotated to the appropriate position, the worker stops stepping on the positioning rod, which then engages with the handrail, securing it and ensuring stability during flatbed cart use. However, this joint positioning method has limitations. It can only fix the handrail at two specific angles. Furthermore, since the positioning rod is usually located on the flatbed cart, when the cart is full of goods, the goods can easily press against the positioning rod and exert pressure, making it difficult to guarantee the stability of the handrail and affecting the safety and convenience of using the flatbed cart. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a folding connector for folding vehicles to solve the problems existing in the background art.

[0005] This utility model provides the following technical solution: a folding connector for a folding vehicle, comprising a flatbed vehicle body and a flatbed vehicle handlebar movably installed above the flatbed vehicle body, a folding component installed at the connection between the flatbed vehicle body and the flatbed vehicle handlebar, and a negative pressure component installed at the bottom of the flatbed vehicle body;

[0006] The folding assembly includes a fixed base fixedly connected to the surface of the flatbed vehicle body. Two bearings are fixedly installed inside the fixed base. A rotating rod is fixedly connected to the inner ring of the bearing. A sealing cylinder is fixedly connected inside the fixed base. A silicone block is fixedly connected inside the sealing cylinder. The surface of the silicone block abuts against the surface of the piston rod. The piston rod is slidably connected inside the sealing cylinder. A sliding plate is fixedly connected to the end face of the piston rod. A first toothed disc is fixedly connected to the surface of the sliding plate. A second toothed disc is meshed with the surface of the first toothed disc. A connecting pipe is fixedly connected inside the fixed base. A rotating groove is formed at the center of the fixed base. The outer surface of the rotating rod penetrates and is fixedly connected to the inside of the flatbed vehicle handrail.

[0007] Furthermore, the negative pressure assembly includes an outer box fixedly connected to the bottom of the flatbed vehicle body, a sealing plate slidably connected inside the outer box, and a handle fixedly connected to the bottom of the sealing plate.

[0008] Furthermore, a circular hole is provided at the center of the surface of the slide, the first toothed disc, and the second toothed disc. The diameter of the circular hole is larger than the diameter of the rotating rod. The outer surface of the rotating rod is fixedly connected to the inside of the flatbed truck handlebar, and the outer surface of the rotating rod penetrates the inside of the rotating groove.

[0009] Furthermore, the slide plate is square, and its outer surface is slidably connected to the inside of the fixed base, while the inside of the sealing cylinder is under high pressure.

[0010] Furthermore, the surface of the first toothed disc near the second toothed disc extends into the interior of the flatbed truck handlebar, and the interior of the sealing cylinder is connected to the top of the interior of the outer box via a connecting pipe.

[0011] Furthermore, the handle is U-shaped, the surface of the second toothed disc away from the first toothed disc is fixedly connected to the surface of the flatbed handrail, and steel balls are equidistantly installed inside the skateboard, the surface of the steel balls extending to the outer surface of the skateboard and rollingly connected to the inner wall of the fixed seat.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. This utility model, by setting up a folding component and a negative pressure component, allows workers to control the air pressure inside the sealed cylinder simply by stepping on the handle. This enables adjustment of the sliding of the first toothed disc. Through the meshing of the first and second toothed discs, the angle of rotation can be positioned. Therefore, the flatbed cart handle can be positioned at multiple angles. Whether it is adjusting the handle angle for easy operation when moving goods in narrow warehouse aisles, or changing the handle angle to adapt to the pushing posture in different usage scenarios such as flat and sloping roads, it can be easily achieved. This helps users plan the moving route and operation method in advance, further improving the safety of operation.

[0014] 2. By incorporating steel balls, this utility model reduces the friction of the sliding plate inside the fixed seat. Furthermore, the installation position of the negative pressure component prevents objects piled on the flatbed from accidentally bumping into it, thus enhancing the stability of the flatbed's handrail. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the folding component in this utility model;

[0017] Figure 3 This is a schematic diagram showing the connection between the fixed base and the rotating rod in this utility model;

[0018] Figure 4 This is a schematic diagram showing the connection between the sliding plate and the first toothed disc in this utility model;

[0019] Figure 5 This is a schematic diagram showing the connection between the negative pressure component and the connecting pipe in this utility model.

[0020] The attached figures are labeled as follows: 1. Flatbed trolley body; 2. Folding assembly; 21. Fixing seat; 22. Bearing; 23. Rotating rod; 24. Sealing cylinder; 25. Piston rod; 26. Slide plate; 261. Steel ball; 27. First gear plate; 28. Second gear plate; 29. ​​Connecting pipe; 210. Rotating groove; 3. Flatbed trolley handrail; 4. Negative pressure assembly; 41. Outer box; 42. Sealing plate; 43. Handle. Detailed Implementation

[0021] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.

[0022] Figures 1-5 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figures 1-5 The present invention will be further described below.

[0023] Specifically, a folding connector for a folding vehicle includes a flatbed vehicle body 1 and a flatbed vehicle handlebar 3 movably installed above the flatbed vehicle body 1. A folding component 2 is installed at the connection between the flatbed vehicle body 1 and the flatbed vehicle handlebar 3, and a negative pressure component 4 is installed at the bottom of the flatbed vehicle body 1.

[0024] The folding assembly 2 includes a fixed seat 21 fixedly connected to the surface of the flatbed body 1. Two bearings 22 are fixedly installed inside the fixed seat 21. A rotating rod 23 is fixedly connected to the inner ring of the bearings 22. A sealing cylinder 24 is fixedly connected inside the fixed seat 21. A silicone block is fixedly connected inside the sealing cylinder 24. The surface of the silicone block abuts against the surface of the piston rod 25. The piston rod 25 is slidably connected inside the sealing cylinder 24. A slide plate 26 is fixedly connected to the end face of the piston rod 25. A first toothed disc 27 is fixedly connected to the surface of the slide plate 26. A second toothed disc 28 is meshed with the surface of the first toothed disc 27. A connecting pipe 29 is fixedly connected inside the fixed seat 21. A rotating groove 210 is opened at the center of the fixed seat 21. The outer surface of the rotating rod 23 penetrates and is fixedly connected to the inside of the flatbed arm 3. The negative pressure assembly 4 includes an outer box 41 fixedly connected to the bottom of the flatbed body 1. A sealing plate 42 is slidably connected inside the outer box 41. A handle 43 is fixedly connected to the bottom of the sealing plate 42.

[0025] In this implementation scheme, by setting up the folding component 2 and the negative pressure component 4, the operator only needs to step on the handle 43 to control the air pressure inside the sealing cylinder 24, which can adjust the sliding of the first toothed disc 27. Through the meshing of the first toothed disc 27 and the second toothed disc 28, the angle of rotation range can be positioned. Therefore, the flatbed truck handle 3 can be used at multiple angles. Whether it is to adjust the handle angle for easy operation when moving goods in narrow warehouse aisles, or to change the handle angle to adapt to the pushing posture in different usage scenarios such as flat roads and sloping roads, it can be easily achieved. This helps users plan the moving route and operation method in advance, and further improves the safety of operation.

[0026] Specifically, a circular hole is provided at the center of the surface of the slide plate 26, the first toothed disc 27, and the second toothed disc 28. The diameter of the circular hole is larger than the diameter of the rotating rod 23. The outer surface of the rotating rod 23 is fixedly connected to the inside of the flatbed handrail 3, and the outer surface of the rotating rod 23 penetrates the inside of the rotating groove 210.

[0027] In this embodiment, by fixing the outer surface of the rotating rod 23 to the inside of the flatbed truck handrail 3, the rotating rod 23 can be driven to rotate when the flatbed truck handrail 3 rotates, thereby enhancing the stability of the rotation of the flatbed truck handrail 3.

[0028] Specifically, the slide plate 26 is square, and the outer surface of the slide plate 26 is slidably connected to the inside of the fixed base 21, while the inside of the sealing cylinder 24 is under high pressure.

[0029] In this embodiment, since the slide plate 26 is square, it can prevent the first toothed disc 27 from rotating and enhance the stability after the first toothed disc 27 and the second toothed disc 28 are engaged.

[0030] Specifically, the surface of the first toothed disc 27 near the second toothed disc 28 extends into the interior of the flatbed handrail 3, and the interior of the sealing cylinder 24 is connected to the top of the interior of the outer box 41 through the connecting pipe 29.

[0031] In this embodiment, since the interior of the sealing cylinder 24 is connected to the top of the interior of the outer box 41 through the connecting pipe 29, changes in the air pressure inside the outer box 41 can directly control the air pressure inside the sealing cylinder 24.

[0032] Specifically, the handle 43 is U-shaped, the surface of the second toothed disc 28 away from the surface of the first toothed disc 27 is fixedly connected to the surface of the flatbed handrail 3, and steel balls 261 are equidistantly installed inside the slide plate 26. The surface of the steel balls 261 extends to the outer surface of the slide plate 26 and is rolled and connected to the inner wall of the fixed seat 21.

[0033] In this embodiment, by setting steel balls 261, the friction of the sliding plate 26 sliding inside the fixed seat 21 can be reduced, and the installation position of the negative pressure component 4 can also prevent objects piled on the flatbed trolley body 1 from accidentally touching it, thus enhancing the stability of the flatbed trolley handrail 3.

[0034] The working principle and usage process of this utility model are as follows: When it is necessary to fold the flatbed cart handle 3 or adjust its angle, the worker steps on the handle 43, which causes the sealing plate 42 to slide downwards. At this time, the upper part of the outer casing 41 is under negative pressure, and the sealing cylinder 24 is also under negative pressure through the connecting pipe 29. The piston rod 25 then causes the sliding plate 26 and the first gear plate 27 to slide away from the second gear plate 28. When the first gear plate 27 is not in contact with the second gear plate 28, the second gear plate 28 can rotate freely, and the rotating rod 23 and the flatbed cart handle 3 can also rotate freely, thus folding the flatbed cart handle 3. The rotation of the handrail 3, through the elasticity of the silicone block inside the sealing cylinder 24, causes the piston rod 25 to drive the slide plate 26 and the first gear plate 27 to slide, and the surface of the first gear plate 27 to mesh with the surface of the second gear plate 28. At this time, the angle of the second gear plate 28, the rotating rod 23 and the handrail 3 of the flatbed truck are fixed. Therefore, whether it is to adjust the angle of the handrail for easy operation when moving goods in narrow warehouse aisles, or to change the angle of the handrail to adapt to the pushing posture in different usage scenarios (such as flat roads and sloping roads), it can be easily achieved. This helps users plan the handling route and operation method in advance, and further improves the safety of operation.

[0035] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A folding connector for a folding vehicle, comprising a flatbed vehicle body (1) and a flatbed vehicle handlebar (3) movably mounted above the flatbed vehicle body (1), characterized in that: A folding assembly (2) is installed at the connection between the flatbed vehicle body (1) and the flatbed vehicle handrail (3), and a negative pressure assembly (4) is installed at the bottom of the flatbed vehicle body (1). The folding assembly (2) includes a fixed seat (21) fixedly connected to the surface of the flatbed body (1). Two bearings (22) are fixedly installed inside the fixed seat (21). A rotating rod (23) is fixedly connected to the inner ring of the bearing (22). A sealing cylinder (24) is fixedly connected inside the fixed seat (21). A silicone block is fixedly connected inside the sealing cylinder (24). The surface of the silicone block abuts against the surface of the piston rod (25). The piston rod (25) is slidably connected inside the sealing cylinder (24). A sliding plate (26) is fixedly connected to the end face of the piston rod (25). A first toothed disc (27) is fixedly connected to the surface of the sliding plate (26). A second toothed disc (28) is meshed with the surface of the first toothed disc (27). A connecting pipe (29) is fixedly connected inside the fixed seat (21). A rotating groove (210) is opened at the center of the fixed seat (21). The outer surface of the rotating rod (23) penetrates and is fixedly connected to the inside of the flatbed armrest (3).

2. A folding connector for folding vehicles according to claim 1, characterized in that: The negative pressure component (4) includes an outer box (41) fixedly connected to the bottom of the flatbed body (1), and a sealing plate (42) is slidably connected inside the outer box (41), and a handle (43) is fixedly connected to the bottom of the sealing plate (42).

3. A folding connector for folding vehicles according to claim 1, characterized in that: The center of the surfaces of the slide plate (26), the first toothed disc (27), and the second toothed disc (28) are all provided with a circular hole. The diameter of the circular hole is larger than the diameter of the rotating rod (23). The outer surface of the rotating rod (23) is fixedly connected to the inside of the flatbed handrail (3), and the outer surface of the rotating rod (23) penetrates the inside of the rotating groove (210).

4. A folding connector for folding vehicles according to claim 1, characterized in that: The slide plate (26) is square, and the outer surface of the slide plate (26) is slidably connected to the inside of the fixed base (21). The inside of the sealing cylinder (24) is under high pressure.

5. A folding connector for folding vehicles according to claim 2, characterized in that: The surface of the first toothed disc (27) near the second toothed disc (28) extends into the interior of the flatbed handrail (3), and the interior of the sealing cylinder (24) is connected to the top of the interior of the outer box (41) through the connecting pipe (29).

6. A folding connector for folding vehicles according to claim 2, characterized in that: The handle (43) is U-shaped. The surface of the second toothed disc (28) away from the first toothed disc (27) is fixedly connected to the surface of the flatbed handrail (3). Steel balls (261) are equidistantly installed inside the slide plate (26). The surface of the steel balls (261) extends to the outer surface of the slide plate (26) and rolls to the inner wall of the fixed seat (21).

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