Modeling lower pipe connecting structure of electric bicycle

Abstract

The utility model provides an electric bicycle modeling lower pipe connecting structure, which belongs to the technical field of bicycle lower pipe connecting structures, and comprises a lower pipe body and a vertical pipe, a cup holder and a connecting assembly are fixedly arranged on the lower pipe body, the connecting assembly comprises a first connecting column fixedly connected to the side end of the lower pipe body, and a second connecting column fixedly connected to the side end of the vertical pipe. A thread turning section is arranged on the surface of the first connecting column, a clamping column is fixedly connected to the end, away from the lower pipe body, of the first connecting column, a second connecting column is fixedly arranged on the side wall of the vertical pipe, a clamping groove is formed in the side end of the second connecting column, and the second connecting column is sleeved with a sleeve. According to the utility model, the connecting component is arranged, so that the stability is considered, the convenience is realized, the combination connection and the subsequent maintenance and replacement are facilitated, the protection component is arranged, a good protection effect is provided for the container in the lower tube upper cup holder, and the practicability is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycle down tube connection structures, in particular to an electric bicycle-shaped down tube connection structure. Background Art

[0002] The electric bicycle-shaped down tube is an important part of the electric bicycle frame, mainly playing a role of horizontal support for connecting the front fork and the seat tube, and at the same time increasing the stability and stiffness of the frame. The material of the down tube is usually selected as a metal with sufficient strength and stiffness, such as carbon steel, stainless steel or aluminum alloy, etc. These materials can effectively bear the weight of the rider, the impact of the road surface and various forces generated during driving. A relevant connection structure is required between the down tube and the frame, and thus an electric bicycle-shaped down tube connection structure is needed for matching use.

[0003] The above-mentioned prior art often has the following problems when in use:

[0004] The connection between the existing electric bicycle-shaped down tube and the frame is mostly in the form of welding. Such a connection method is too fixed, which is not convenient for combined connection. At the same time, the welding method is not convenient for subsequent maintenance and replacement. At the same time, most traditional electric bicycles are provided with cup holders at the down tube for storing some drinking water. However, on some bumpy roads, the things in the cup holder are easily jolted out, so relevant treatment measures are also needed. Summary of the Utility Model

[0005] In view of the deficiencies in the prior art, the utility model provides an electric bicycle-shaped down tube connection structure.

[0006] An embodiment of the utility model provides an electric bicycle-shaped down tube connection structure, including:

[0007] A down tube body and a riser tube, wherein a cup holder is fixedly arranged on the down tube body;

[0008] A connection component, the connection component includes a first connection column fixedly connected to the side end of the down tube body. A threaded section is arranged on the surface of the first connection column. A clamping column is fixedly connected to one end of the first connection column away from the down tube body. A second connection column is fixedly arranged on the side wall of the riser tube. A clamping groove is arranged at the side end of the second connection column. A sleeve is sleeved on the second connection column. A threaded groove is arranged on the inner wall of the sleeve. A limiting sleeve is fixedly connected circumferentially to the second connection column;

[0009] A protection component, the protection component is arranged on the side wall of the down tube body.

[0010] Further, the protection component includes a fixing plate circumferentially and fixedly connected to the lower pipe body. Two guide rods are fixedly connected to the side wall of the fixing plate. A moving plate is arranged on the side of the fixing plate. Both of the two guide rods penetrate and are slidably connected to the side wall of the moving plate. Two springs are fixedly connected between the moving plate and the fixing plate. A protection plate is fixedly connected to the upper surface of the moving plate.

[0011] Further, the clamping post is engaged with the clamping groove, and the threading section is matched with the thread groove.

[0012] Further, the two springs are respectively sleeved on the two guide rods, and the two springs are respectively located on both sides of the lower pipe body.

[0013] Further, the protection plate is located obliquely above the cup holder, and the height of the protection plate is greater than the radius of the cross section of the cup holder.

[0014] Further, the moving plate is slidably sleeved on the lower pipe body, and the moving plate is arranged parallel to the fixing plate.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] In the utility model, by setting the connection component, compared with the traditional welding connection method, while taking into account the stability, it also has convenience, is convenient for combined connection, as well as subsequent maintenance and replacement. By setting the protection component, it provides a good protection effect for the container in the cup holder on the lower pipe, avoiding the situation that the drink is spilled out, and has higher practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an exploded view of a connection structure of a lower pipe in the shape of an electric bicycle according to an embodiment of the utility model.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure analysis after connection of a connection structure of a lower pipe in the shape of an electric bicycle according to an embodiment of the utility model.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure after connection of a connection structure of a lower pipe in the shape of an electric bicycle according to an embodiment of the utility model.

[0020] In the above-mentioned drawings: 1 lower pipe body, 2 riser pipe, 3 cup holder, 4 first connection post, 5 threading section, 6 clamping post, 7 second connection post, 8 clamping groove, 9 sleeve, 10 thread groove, 11 limiting sleeve, 12 fixing plate, 13 guide rod, 14 moving plate, 15 spring, 16 protection plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions in the utility model will be further described below with reference to the drawings and embodiments.

[0022] As shown Figures 1-3 in the figure, an embodiment of the utility model provides a connecting structure for the lower tube of an electric bicycle shape, including:

[0023] A lower tube body 1 and a vertical tube 2. A cup holder 3 is fixedly arranged on the lower tube body 1. A connecting component includes a first connecting column 4 fixedly connected to the side end of the lower tube body 1. A threaded section 5 is arranged on the surface of the first connecting column 4. A clamping column 6 is fixedly connected to one end of the first connecting column 4 away from the lower tube body 1. A second connecting column 7 is fixedly arranged on the side wall of the vertical tube 2. A clamping groove 8 is arranged at the side end of the second connecting column 7. A sleeve 9 is sleeved on the second connecting column 7. A threaded groove 10 is arranged on the inner wall of the sleeve 9. A limiting sleeve 11 is fixedly connected circumferentially to the second connecting column 7. The clamping column 6 is engaged with the clamping groove 8, and the threaded section 5 is matched with the threaded groove 10;

[0024] A protection component is arranged on the side wall of the lower tube body 1. The protection component includes a fixing plate 12 fixedly connected circumferentially to the lower tube body 1. Two guide rods 13 are fixedly connected to the side wall of the fixing plate 12. A moving plate 14 is arranged on the side of the fixing plate 12. Both guide rods 13 penetrate and are slidably connected to the side wall of the moving plate 14. Two springs 15 are fixedly connected between the moving plate 14 and the fixing plate 12. A protection plate 16 is fixedly connected to the upper surface of the moving plate 14. The two springs 15 are respectively sleeved on the two guide rods 13. The two springs 15 are respectively located on both sides of the lower tube body 1, so that the moving plate 14 can move smoothly. The protection plate 16 is located obliquely above the cup holder 3. The height of the protection plate 16 is greater than the radius of the cross section of the cup holder 3, so that the protection plate 16 can provide a better protection effect. The moving plate 14 is slidably sleeved on the lower tube body 1, and the moving plate 14 is arranged parallel to the fixing plate 12.

[0025] The detailed working process of the utility model is as follows:

[0026] When in use, when it is necessary to connect the lower tube body 1 and the vertical tube 2, first align the clamping column 6 with the clamping groove 8 and then insert it, so that they are engaged with each other. After completion, the sleeve 9 slides in the direction of the first connecting column 4. When it contacts the threaded section 5, it is changed to rotation, so that the threaded groove 10 in the sleeve 9 is meshed with the threaded section 5. After tightening, the limiting sleeve 11 on the second connecting column 7 abuts against the inner wall of the sleeve 9, so that the first connecting column 4 and the second connecting column 7 are tightly connected. The assembly is convenient and stable at the same time;

[0027] When the cup holder needs to be used, pull the protective plate 16 towards the fixed plate 12, which will drive the moving plate 14 to slide towards the fixed plate 12. The movement of the moving plate 14 will compress the spring 15 and cause it to deform. After the protective plate 16 moves a certain distance, the drink can be easily placed into the cup holder. Then put the container in, and then release the protective plate 16. Under the action of the two springs 15, the moving plate 14 and the protective plate 16 move away from the fixed plate 12 and come to the side of the cup holder 3, providing protection for the internal container to prevent it from being jolted out, which has higher practicability.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. An electric bicycle down tube connection structure, characterized in that: include: A lower tube body (1) and a vertical tube (2), wherein a cup holder (3) is fixedly provided on the lower tube body (1); A connection assembly, the connection assembly comprising a No. 1 connection column (4) fixedly connected to the side end of a lower tube body (1), a threaded section (5) being provided on the surface of the No. 1 connection column (4), a clamping column (6) being fixedly connected to one end of the No. 1 connection column (4) away from the lower tube body (1), a No. 2 connection column (7) being fixedly provided on the side wall of the vertical tube (2), a clamping groove (8) being provided on the side end of the No. 2 connection column (7), a sleeve (9) being sleeved on the No. 2 connection column (7), a threaded groove (10) being provided on the inner wall of the sleeve (9), and a circumferential fixed connection limit sleeve (11) being provided on the No. 2 connection column (7); A protection component is arranged on the side wall of the lower tube body (1).

2. The electric bicycle down tube connection structure according to claim 1, characterized in that: in: The protective component comprises a fixed plate (12) circumferentially fixedly connected to the lower tube body (1), two guide rods (13) are fixedly connected to the side wall of the fixed plate (12), a movable plate (14) is provided on the side of the fixed plate (12), the two guide rods (13) are both slidably connected to the side wall of the movable plate (14), two springs (15) are fixedly connected between the movable plate (14) and the fixed plate (12), and a protective plate (16) is fixedly connected to the upper surface of the movable plate (14).

3. The electric bicycle down tube connection structure according to claim 1, characterized in that: in: The clamping column (6) is engaged with the clamping groove (8), and the threading section (5) is matched with the thread groove (10).

4. The electric bicycle down tube connection structure according to claim 2, characterized in that: in: The two springs (15) are respectively sleeved on the two guide rods (13), and the two springs (15) are respectively located on two sides of the lower tube body (1).

5. The electric bicycle down tube connection structure according to claim 2, characterized in that: in: The protective plate (16) is located obliquely above the cup holder (3), and the height of the protective plate (16) is greater than the radius of the cross section of the cup holder (3).

6. The electric bicycle down tube connection structure according to claim 2, characterized in that: in: The movable plate (14) is slidably sleeved on the lower tube body (1), and the movable plate (14) is arranged parallel to the fixed plate (12).

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