Frames and E-bikes

Abstract

The utility model provides a frame and an electric bicycle, which relate to the technical field of transportation tools. The frame is used to place a battery pack, and the frame includes a head tube, a down tube, a first connecting member and a second connecting member. A placement opening is opened on the peripheral side of the head tube, and the battery pack can be placed into the inner cavity of the down tube from the placement opening. The first connecting member is inserted into the interior of the head tube from one end of the head tube to cover the placement opening, and the second connecting member is arranged at the other end of the head tube. The second connecting member is detachably connected to the first connecting member to fix the first connecting member, the second connecting member and the head tube, so that when taking out or putting in the battery pack, it is only necessary to first disassemble the first connecting member and the second connecting member to expose the placement opening of the head tube, and then take and put the battery pack from the placement opening, so as to avoid the opening on the down tube affecting the strength of the frame, and there is no need to invert the frame before taking out or putting in the battery pack, so that taking out or putting in the battery pack is more convenient, and there is no need to weld at the five-way joint of the frame, so that the appearance of the electric bicycle is more beautiful.

Description

Technical Field

[0001] The utility model relates to the technical field of transportation tools, in particular to a frame and an electric bicycle. Background Art

[0002] At present, the electric bicycles on the market need to install a battery pack inside the frame for the energy supply of the vehicle. The battery pack is usually installed in the lower tube of the electric bicycle. At present, the electric bicycles on the market use tube-hidden batteries. The battery pack can be taken out by top, bottom and side. The top and side methods usually require openings on the upper part or side of the lower tube, which affects the strength of the frame and the integrity of the appearance of the electric bicycle. The bottom method mainly extracts the battery pack from the five-way under the lower tube. It is necessary to turn the frame upside down before taking out the tube-hidden battery. It is inconvenient to take out and place the tube-hidden battery, and the welding of the tube needs to avoid the five-way of the frame. The five-way needs to be welded in an offset manner, which greatly affects the appearance of the electric bicycle.

[0003] The head pipe of a traditional electric bicycle is usually made of aluminum, which has low strength and is easy to deform. It is usually connected to other parts by welding, which is costly. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art electric bicycles, such as the inconvenience of taking out and putting away the battery pack, the need for opening the tube, which affects the frame strength and the appearance of the electric bicycle, the low strength and easy deformation of the head tube, and the high manufacturing cost by using welding technology, and provide a frame and an electric bicycle.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] The utility model provides a frame for placing a battery pack, the frame comprising a head tube and a down tube, the frame further comprising a first connecting member and a second connecting member;

[0007] A placement opening is provided on the peripheral side of the head tube, and the battery pack can be placed into the inner cavity of the down tube through the placement opening;

[0008] The first connecting member is inserted into the interior of the head pipe from one end of the head pipe to cover the placement port, and the second connecting member is arranged at the other end of the head pipe. The second connecting member is detachably connected to the first connecting member to fix the first connecting member, the second connecting member and the head pipe.

[0009] In this solution, the first connector is inserted into the interior of the head tube to cover the placement opening, and the second connector is detachably connected to the first connector to fix the first connector, the second connector and the head tube, so that when taking out or putting in the battery pack, it is only necessary to first disassemble the first connector and the second connector to expose the placement opening of the head tube, and then put the battery pack into the inner cavity of the lower tube from the placement opening, or take out the battery pack in the inner cavity of the lower tube from the placement opening, so as to avoid the opening on the lower tube affecting the strength of the frame, and there is no need to invert the frame to take out or put in the battery pack, making it more convenient to take out or put in the battery pack, and there is no need to weld at the five-way joint of the frame, making the appearance of the electric bicycle more beautiful. The first connector inserted into the interior of the head tube can also enhance the strength of the head tube part, optimize the deformation and strength problems of the head tube, and the head tube part, the upper tube and the lower tube form a triangular stable structure, so that the overall strength of the frame is stronger, and the first connector, the second connector and the head tube are detachably connected, without welding, saving manufacturing costs.

[0010] Preferably, the first connecting member is a connecting pipe, and the connecting pipe is inserted into the interior of the head pipe from one end of the head pipe.

[0011] In this solution, the first connecting member is a connecting tube, which is easy to insert into the head tube, making it more convenient to install and remove the connecting tube, and to take and put the battery pack, and to operate the user. Inserting the connecting tube into the head tube can also enhance the strength of the head tube part, making the overall strength of the frame stronger.

[0012] Preferably, the outer diameter of the connecting pipe is smaller than the inner diameter of the head pipe, and the outer wall surface of the connecting pipe is in close contact with the inner wall surface of the head pipe.

[0013] In this solution, the outer diameter of the connecting tube is smaller than the inner diameter of the head tube, so that the connecting tube can be easily inserted into the interior of the head tube. The outer wall surface of the connecting tube fits with the inner wall surface of the head tube, so that the connection between the connecting tube and the head tube is tighter, and the sealing of the placement port is better. At the same time, the strength of the head tube part can also be enhanced. The head tube part, the upper tube and the down tube form a triangular stable structure, which makes the overall strength of the frame stronger.

[0014] Preferably, the second connecting member is a nut, the connecting pipe passes through the other end of the head pipe and is connected to the nut, and the nut fits the upper end of the head pipe.

[0015] In this solution, the nut is connected to the other end of the connecting pipe, which makes it more convenient to install and remove the connecting pipe. The connecting pipe can be installed and removed by simply rotating the nut, which is convenient for users to operate. The nut fits the upper end of the head pipe, making the connection between the connecting pipe, the head pipe and the nut tighter, thereby enhancing the strength of the head pipe part, making the overall strength of the frame stronger, and also making the appearance of the frame more beautiful.

[0016] Preferably, the connecting pipe is inserted into the interior of the head pipe from the lower end of the head pipe, and the upper end of the connecting pipe is connected to the nut.

[0017] In this solution, the connecting pipe is inserted into the interior of the head pipe from the lower end, and the upper end of the connecting pipe is connected to the nut, so that the connecting part of the connecting pipe and the nut is located at the upper end of the head pipe, making it more convenient to install and remove the connecting pipe and easy for users to operate.

[0018] Preferably, the connecting pipe is a seamless steel pipe.

[0019] In this solution, a seamless steel pipe is used. The seamless steel pipe is matched with the head pipe. Compared with the traditional aluminum head pipe, it is stronger and less prone to deformation, thereby enhancing the strength of the head pipe part.

[0020] Preferably, the opening size of the placement port is larger than the opening size of the upper end of the lower tube.

[0021] In this solution, the opening size of the placement port is larger than the opening size of the upper end of the lower tube, so that it is easier to place the battery pack into the lower tube from the placement port, making it more convenient for users to take out or put in the battery pack.

[0022] The utility model also provides an electric bicycle, which comprises the above-mentioned frame.

[0023] In this embodiment, the electric bicycle includes the same effects as the above-mentioned frame.

[0024] Preferably, the electric bicycle further comprises an upper bowl assembly, wherein the upper bowl assembly is arranged at the upper end of the head pipe, and the upper bowl assembly is detachably connected to the first connecting member and / or the second connecting member.

[0025] In this solution, the upper bowl assembly is disposed at the upper end of the head pipe, and the upper bowl assembly is detachably connected to the first connecting member and / or the second connecting member. When taking or placing the battery pack, the upper bowl assembly is easy to disassemble and is convenient for user operation.

[0026] Preferably, the electric bicycle further comprises a front fork, wherein the front fork is arranged at the lower end of the head pipe, and the front fork is detachably connected to the first connecting member and / or the second connecting member.

[0027] In this solution, the front fork is arranged at the lower end of the head pipe, and the front fork is detachably connected to the first connecting member and / or the second connecting member. When taking or placing the battery pack, the front fork is easy to disassemble and convenient for user operation.

[0028] The positive and progressive effects of the utility model are:

[0029] The utility model provides a frame and an electric bicycle. The frame comprises a head tube, a down tube, a first connecting piece and a second connecting piece. A placement opening is opened on the circumferential side of the tube, and a battery pack can be placed into the inner cavity of the down tube from the placement opening. The first connecting piece is inserted into the interior of the head tube to cover the placement opening. The second connecting piece is detachably connected to the first connecting piece to fix the first connecting piece, the second connecting piece and the head tube. When taking out or putting in the battery pack, it is only necessary to firstly disassemble the first connecting piece and the second connecting piece to expose the placement opening of the head tube to the outside, and then put the battery pack into the inner cavity of the down tube from the placement opening, or take out the battery pack in the inner cavity of the down tube from the placement opening, so as to avoid the opening on the down tube affecting the strength of the frame, and there is no need to invert the frame before taking out or putting in the battery pack, so that taking out or putting in the battery pack is more convenient, and there is no need to weld at the five-way joint of the frame, so that the appearance of the electric bicycle is more beautiful. Inserting the first connecting piece into the interior of the head pipe can also enhance the strength of the head pipe portion, thereby optimizing the deformation and strength problems of the head pipe. The head pipe portion, the upper tube and the down tube form a triangular stable structure, making the overall strength of the frame stronger. The first connecting piece, the second connecting piece and the head pipe are detachably connected without welding, thus saving manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of a three-dimensional structure according to an embodiment of the utility model.

[0031] Description of reference numerals:

[0032] Frame 100

[0033] Head pipe 110

[0034] Placement port 111

[0035] Down tube 120

[0036] Top tube 130

[0037] 140

[0038] First connecting member 200

[0039] Connecting pipe 210

[0040] The second connecting member 300

[0041] Nut 310

[0042] Upper headset 400

[0043] Front fork 500

[0044] Battery Pack 600 DETAILED DESCRIPTION

[0045] The present invention is further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments.

[0046] This embodiment provides an electric bicycle, which includes a frame 100 , an upper headset assembly 400 and a front fork 500 .

[0047] like Figure 1 As shown, the frame 100 is used to place the battery pack 600. The frame 100 includes a head tube 110 and a down tube 120. The frame 100 also includes a first connecting member 200 and a second connecting member 300. A placement opening 111 is opened on the circumferential side of the head tube 110, and the battery pack 600 can be placed into the inner cavity of the down tube 120 through the placement opening 111.

[0048] The first connecting member 200 is inserted into the interior of the head pipe 110 from one end of the head pipe 110 to cover the placement port 111, and the second connecting member 300 is arranged at the other end of the head pipe 110. The second connecting member 300 is detachably connected to the first connecting member 200 to fix the first connecting member 200, the second connecting member 300 and the head pipe 110.

[0049] In this embodiment, the first connecting member 200 is inserted into the interior of the head tube 110 from one end of the head tube 110 and is connected to the second connecting member 300 at the other end of the head tube 110. The first connecting member 200 and the second connecting member 300 are detachably connected. Therefore, when taking out or putting in the battery pack 600, it is only necessary to first disassemble the first connecting member 200 and the second connecting member 300 to expose the placement port 111 of the head tube 110 to the outside, and then put the battery pack 600 into the inner cavity of the down tube 120 from the placement port 111, or take out the battery pack 600 from the inner cavity of the down tube 120 from the placement port 111, so as to avoid the opening on the down tube 120 affecting the strength of the frame 100, and there is no need to invert the frame 100 to take out or put in the battery pack 600, so that it is more convenient to take out or put in the battery pack 600, and there is no need to weld at the five-way 140 of the frame 100, so that the appearance of the electric bicycle is more beautiful.

[0050] The first connecting member 200, the second connecting member 300 and the head pipe 110 are fixed together to form a whole, which can also enhance the strength of the head pipe 110, optimize the deformation and strength problems of the head pipe 110, and the head pipe 110, the upper tube 130 and the down tube 120 form a triangular stable structure, so that the overall strength of the frame 100 is stronger, and the first connecting member 200, the second connecting member 300 and the head pipe 110 are detachably connected without welding, saving manufacturing costs.

[0051] In this embodiment, the first connecting member 200 is a connecting tube 210, and the connecting tube 210 is inserted into the interior of the head tube 110 from one end of the head tube 110. The first connecting member 200 adopts a tubular structure, which is more convenient when installing and removing the connecting tube 210, and is convenient for taking and placing the battery pack 600, and convenient for user operation. The connecting tube 210 inserted into the interior of the head tube 110 can also enhance the strength of the head tube 110 part, making the overall strength of the frame 100 stronger. In other embodiments, other structures of the first connecting member 200 that are deemed appropriate by those skilled in the art can also be adopted.

[0052] The outer diameter of the connecting tube 210 is smaller than the inner diameter of the head tube 110, so that the connecting tube 210 can be inserted into the interior of the head tube 110. The outer wall surface of the connecting tube 210 fits with the inner wall surface of the head tube 110, so that the connection between the connecting tube 210 and the head tube 110 is tighter, and the sealing performance of the placement port 111 is better. At the same time, the strength of the head tube 110 can also be enhanced. The head tube 110, the upper tube 130 and the down tube 120 form a triangular stable structure, so that the overall strength of the frame 100 is stronger.

[0053] In this embodiment, the second connecting member 300 is a nut 310, and the connecting tube 210 passes through the other end of the head tube 110 and is connected to the nut 310. The nut 310 fits the upper end of the head tube 110 and is connected to the other end of the connecting tube 210 through the nut 310. It is more convenient to install and remove the connecting tube 210. The connecting tube 210 can be installed and removed by simply rotating the nut 310, which is convenient for users to operate. The nut 310 fits the upper end of the head tube 110, so that the connection between the connecting tube 210, the head tube 110 and the nut 310 is tighter, the strength of the head tube 110 is enhanced, the overall strength of the frame 100 is stronger, and the appearance of the frame 100 is more beautiful. In other embodiments, other second connecting member 300 structures that are considered appropriate by those skilled in the art may also be used.

[0054] In this embodiment, the connecting tube 210 is inserted into the interior of the head tube 110 from the lower end of the head tube 110, and the upper end of the connecting tube 210 is connected to the nut 310, so that the connection portion of the connecting tube 210 and the nut 310 is located at the upper end of the head tube 110, making it more convenient to install and remove the connecting tube 210 and convenient for users to operate. In other embodiments, the connecting tube 210 can also be inserted into the interior of the head tube 110 from the upper end of the head tube 110, and the lower end of the connecting tube 210 is connected to the nut 310.

[0055] In this embodiment, the connecting pipe 210 is a seamless steel pipe, which cooperates with the head pipe 110 and is stronger and less prone to deformation than a traditional aluminum head pipe, thereby enhancing the strength of the head pipe 110. In other embodiments, other materials for the connecting pipe 210 that are considered appropriate by those skilled in the art may also be selected.

[0056] In this embodiment, the opening size of the placement opening 111 is larger than the opening size of the upper end of the lower tube 120, so that it is easier to put the battery pack 600 into the lower tube 120 from the placement opening 111, making it more convenient for the user to take out or put in the battery pack 600. In other embodiments, the opening size of the placement opening 111 may also be the same as the opening size of the upper end of the lower tube 120.

[0057] In this embodiment, the upper headset 400 is disposed at the upper end of the head pipe 110, and the upper headset 400 is detachably connected to the second connector 300. When taking out and placing the battery pack 600, the upper headset 400 is easy to disassemble, which is convenient for the user to operate. In other embodiments, the upper headset 400 can also be detachably connected to the first connector 200, or can be connected to the first connector 200 and the second connector 300.

[0058] In this embodiment, the front fork 500 is disposed at the lower end of the head tube 110, and the front fork 500 is detachably connected to the first connecting member 200. When taking or placing the battery pack 600, the front fork 500 is easy to disassemble and easy for the user to operate. In other embodiments, the front fork 500 may also be detachably connected to the first connecting member 200, or may be connected to the first connecting member 200 and the second connecting member 300.

[0059] In the description of the present invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate the orientation or positional relationship of the device or component in normal use, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operate in a specific orientation at any time, and therefore cannot be understood as a limitation on the present invention in this regard.

[0060] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. A frame for placing a battery pack, the frame comprising a head tube and a down tube, characterized in that: The frame further comprises a first connecting member and a second connecting member; A placement opening is provided on the peripheral side of the head tube, and the battery pack can be placed into the inner cavity of the down tube through the placement opening; The first connecting member is inserted into the interior of the head pipe from one end of the head pipe to cover the placement port, and the second connecting member is arranged at the other end of the head pipe. The second connecting member is detachably connected to the first connecting member to fix the first connecting member, the second connecting member and the head pipe.

2. The frame according to claim 1, characterized in that The first connecting member is a connecting pipe, and the connecting pipe is inserted into the interior of the head pipe from one end of the head pipe.

3. The frame according to claim 2, characterized in that: The outer diameter of the connecting pipe is smaller than the inner diameter of the head pipe, and the outer wall surface of the connecting pipe is in close contact with the inner wall surface of the head pipe.

4. The frame according to claim 2, characterized in that: The second connecting member is a nut, the connecting pipe passes through the other end of the head pipe and is connected to the nut, and the nut fits the upper end of the head pipe.

5. The frame according to claim 4, characterized in that: The connecting pipe is inserted into the interior of the head pipe from the lower end of the head pipe, and the upper end of the connecting pipe is connected to the nut.

6. The frame according to claim 2, characterized in that: The connecting pipe is a seamless steel pipe.

7. The frame according to claim 1, characterized in that: The opening size of the placement port is larger than the opening size of the upper end of the lower tube.

8. An electric bicycle, characterized in that: The vehicle comprises a frame as described in any one of claims 1 to 7.

9. The electric bicycle according to claim 8, characterized in that: The electric bicycle further comprises an upper bowl assembly, wherein the upper bowl assembly is arranged at the upper end of the head pipe, and the upper bowl assembly is detachably connected to the first connecting member and / or the second connecting member.

10. The electric bicycle according to claim 8, characterized in that: The electric bicycle further comprises a front fork, which is arranged at the lower end of the head pipe and is detachably connected to the first connecting member and / or the second connecting member.

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