Draw-bar box capable of being connected with bicycle

Abstract

The utility model provides a draw-bar box capable of being connected with a bicycle, and relates to the technical field of draw-bar boxes, the draw-bar box capable of being connected with the bicycle comprises a box body, a draw bar module, a groove, a connecting assembly, a sleeve, an extension bar, a through groove, a spring, a pull rope, a limiting groove, a notch and a bottom block, the limiting plate is slidably connected with the lengthening rod, a containing groove is formed in the lengthening rod, an elastic piece is arranged in the containing groove, one end of the elastic piece is fixedly connected with the lengthening rod, the other end of the elastic piece is fixedly connected with the bottom block, a protrusion is arranged on one side of the bottom block, and a positioning groove used for containing the protrusion is formed in the inner bottom of the groove. The draw-bar box can be connected to the seat post of the bicycle through the connecting assembly, so that the draw-bar box can be conveniently and safely pulled to move during short-distance riding, the draw-bar box does not need to be pulled while riding, the safety and convenience during riding are improved, and the use effect is good.

Description

Technical Field

[0001] This utility model relates to the field of trolley case technology, specifically a trolley case that can be connected to a bicycle. Background Technology

[0002] For shorter distances, shared bicycles can be used to reach the destination. However, for some groups, such as students living on university campuses, riding bicycles while pulling suitcases not only poses a significant safety hazard, but the suitcases located on the side of the bicycle can also easily affect pedestrians on the road, making it difficult to meet the needs of users. Utility Model Content

[0003] The purpose of this invention is to provide a rolling case that can be connected to a bicycle, in order to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: The trolley case that can be connected to a bicycle includes a case body and a trolley module disposed on the case body. A groove is formed on the outer surface of the case body, the groove being located inside the trolley module. A connecting component is disposed inside the groove, the connecting component including a sleeve, one end of which is located inside the groove and rotatably connected to the groove. An extension rod is slidably connected inside the sleeve, the extension rod having a through groove inside, and a spring is also included. The spring is located inside the sleeve and the through groove, and the inner bottom of the sleeve is connected to the through groove. The inner bottoms of the grooves are connected by a pull rope. One end of the extension rod has a limiting groove, and one side of the limiting groove has a notch. One end of the extension rod has a bottom block, and one side of the bottom block has a limiting plate for closing the notch of the limiting groove. The limiting plate is slidably connected to the extension rod. The extension rod has a placement groove, and an elastic element is installed inside the placement groove. One end of the elastic element is fixedly connected to the extension rod, and the other end of the elastic element is fixedly connected to the bottom block. One side of the bottom block has a protrusion, and the inner bottom of the groove has a positioning groove for accommodating the protrusion.

[0005] Preferably, the sleeve and the extension rod are both made of aluminum alloy.

[0006] Preferably, the side of the base block is provided with striped patterns.

[0007] Preferably, the sleeve has a through hole, and the groove has a pin that passes through the through hole on the sleeve. The pin is made of rubber.

[0008] Preferably, the outer diameter of the pin is 6mm and the inner diameter of the through hole is 8mm.

[0009] The beneficial effects of this utility model are:

[0010] This type of rolling case can be connected to the bicycle seatpost via a connecting component, making it convenient and safe to move the case during short rides without having to pull it while riding, thus improving safety and convenience. Furthermore, the case is located at the rear of the bicycle, minimizing its impact on pedestrians, resulting in excellent usability. Attached Figure Description

[0011] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model.

[0012] Figure 2 This is a schematic diagram of the connecting components after they have rotated.

[0013] Figure 3 This is a schematic diagram of the internal structure of the sleeve and extension rod.

[0014] Figure 4 This is a schematic diagram of the connection between the groove and the sleeve.

[0015] Figure 5 This is a diagram showing the connection between the suitcase and the bicycle.

[0016] In the diagram: 1. Pulley; 2. Seat rod; 3. Housing; 4. Pull rod module; 5. Groove; 6. Sleeve; 7. Extension rod; 8. Spring; 9. Pull rope; 10. Limiting groove; 11. Bottom block; 12. Limiting plate; 13. Elastic element; 14. Protrusion; 15. Positioning groove; 16. Pin. Detailed Implementation

[0017] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0018] like Figure 1-5As shown, a trolley case that can be connected to a bicycle includes a case body 3 and a pull rod module 4 mounted on the case body 3. A groove 5 is formed on the outer surface of the case body 3, located inside the pull rod module 4. A connecting assembly is disposed inside the groove 5, including a sleeve 6. One end of the sleeve 6 is located inside the groove 5 and rotatably connected to it. An extension rod 7 is slidably connected inside the sleeve 6, and a through groove is formed inside the extension rod 7. A spring 8 is also included, located inside the sleeve 6 and the through groove. The inner bottom of the sleeve 6 is connected to the inner bottom of the through groove via a pull rope 9. One end of the rod 7 has a limiting groove 10, and a notch is provided on one side of the limiting groove 10. One end of the extension rod 7 is provided with a bottom block 11, and a limiting plate 12 for closing the notch of the limiting groove 10 is provided on one side of the bottom block 11. The limiting plate 12 is slidably connected to the extension rod 7. A placement groove is provided on the extension rod 7, and an elastic element 13 is provided inside the placement groove. One end of the elastic element 13 is fixedly connected to the extension rod 7, and the other end of the elastic element 13 is fixedly connected to the bottom block 11. A protrusion 14 is provided on one side of the bottom block 11, and a positioning groove 15 for accommodating the protrusion 14 is provided at the bottom of the groove 5.

[0019] The rolling case in this application is connected to the bicycle seatpost 2 via a connecting assembly. During connection, the extension rod 7 is first removed from the groove 5. Specifically, the user inserts their finger into the limiting groove 10 and pushes the extension rod 7 upwards, causing the protrusion 14 to move out of the positioning groove 15. Then, the extension rod 7 and the sleeve 6 are rotated, causing the extension rod 7 to move out of the groove 5. Under the action of the spring 8, the extension rod 7 is pushed out of the sleeve 6 a certain length. The pull rope 9 is a nylon rope or a thin steel wire rope. The pull rope 9 limits the length of the extension rod 7 pushed out of the sleeve 6, preventing it from being completely pushed out. After the extension rod 7 is pushed out of the sleeve 6, the limiting groove 10 is moved to the bicycle seatpost 2, and then... Pulling the limiting plate 12 away from the sleeve 6 by using the bottom block 11 or the protrusion 14 further stretches the elastic element 13, which is a rubber rope. After the notch in the limiting groove 10 is opened, the seat rod 2 is moved into the limiting groove 10 by moving the limiting groove 10. Then, releasing the bottom block 11 or the protrusion 14 causes the limiting plate 12 to reset under the action of the elastic element 13. The limiting plate 12 closes the notch in the limiting groove 10, restricting the seat rod 2 within the limiting groove 10. When the seat rod 2 is in the limiting groove 10, it can move slightly forward, backward, left, right, up, and down within the limiting groove 10. After the extension rod 7 is connected to the seat rod 2, the state of the box 3 when the user is riding a bicycle is as follows: Figure 5 As shown, the bottom of the box 3 has only two pulleys 1 that can roll on the ground.

[0020] When the housing 3 is connected to the bicycle, the presence of the spring 8 keeps the sleeve 6 and the extension rod 7 at a relatively long distance, preventing the housing 3 from contacting the rear wheel of the bicycle.

[0021] When turning, the vehicle speed needs to be reduced to prevent the box 3 from fishtailing and tilting due to inertia. If necessary, personnel need to get out of the vehicle to adjust the posture of the box 3.

[0022] The upper end of the groove 5 is closed, which can limit the rotation range of the sleeve 6, thereby preventing the box 3 from tilting too much, that is, preventing the angle between the box 3 and the ground from being too small.

[0023] Furthermore, both the sleeve 6 and the extension rod 7 are made of aluminum alloy.

[0024] Furthermore, the sides of the base block 11 are provided with striped patterns to increase the friction between the user's hand and the base block 11.

[0025] Furthermore, a through hole is provided on the sleeve 6, and a pin 16 is provided on the groove 5. The pin 16 passes through the through hole on the sleeve 6. The pin 16 is made of rubber. When the box 3 moves on the ground via the pulley 1, the rubber pin 16 can reduce the transmission of vibration and also help protect the box 3 and the sleeve 6. At the same time, there are limit blocks at both ends of the pin 16.

[0026] Furthermore, the outer diameter of the pin 16 is 6mm, and the inner diameter of the through hole is 8mm.

[0027] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A rolling suitcase that can be connected to a bicycle, characterized in that, The device includes a housing and a pull rod module mounted on the housing. The outer surface of the housing has a groove located inside the pull rod module. A connecting assembly is located inside the groove, including a sleeve with one end rotatably connected to it. An extension rod is slidably connected inside the sleeve, and the extension rod has a through groove. A spring is also included, located inside the sleeve and through groove. The inner bottom of the sleeve is connected to the inner bottom of the through groove via a pull rope. One end of the extension rod has a limiting groove with a notch on one side. A base block is located at one end of the extension rod, with a limiting plate on one side of the base block to close the notch in the limiting groove. The limiting plate is slidably connected to the extension rod. A placement groove is located on the extension rod, with an elastic element inside. One end of the elastic element is fixedly connected to the extension rod, and the other end is fixedly connected to the base block. A protrusion is located on one side of the base block, and a positioning groove for accommodating the protrusion is located at the inner bottom of the groove.

2. The rolling suitcase that can be connected to a bicycle according to claim 1, characterized in that, Both the sleeve and the extension rod are made of aluminum alloy.

3. The rolling suitcase that can be connected to a bicycle according to claim 1, characterized in that, The side of the base block is provided with striped patterns.

4. The rolling suitcase that can be connected to a bicycle according to claim 1, characterized in that, The sleeve has a through hole, and the groove has a pin that passes through the through hole on the sleeve. The pin is made of rubber.

5. The rolling suitcase that can be connected to a bicycle according to claim 4, characterized in that, The outer diameter of the pin is 6mm, and the inner diameter of the through hole is 8mm.

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