Front-and-back folding type electric bicycle frame
By designing a front and rear folding electric bicycle frame, the problem of electric bicycle frames not being able to be folded is solved by using folding and storage devices, realizing convenient transportation and item storage, and reducing transportation costs and space occupation.
Patent Information
- Application Number
- CN202520401905.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-10
AI Technical Summary
To improve strength during use, most electric bicycles on the market are designed with a fixed frame structure that cannot be folded, which makes them inconvenient to carry and transport, and increases space occupation and transportation costs.
Design a front and rear folding electric bicycle frame. By setting a folding device between the rear frame and the front frame of the electric bicycle, the front frame can be folded and stored using components such as threaded rods, rotating blocks and clips. It is also equipped with a storage device for placing water cups and small items.
It allows the front frame to be folded and stored on one side of the rear frame when the electric bicycle is not in use, reducing the space occupied when carrying it, lowering the difficulty and cost of transportation, and providing convenient storage for items.
Smart Images
Figure CN223949286U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to electric bicycle frame field, especially a front and rear folding type electric bicycle frame. BACKGROUND
[0002] Electric bicycle frame is one of the core parts of electric bicycle, and plays a supporting and connecting role of other components.
[0003] At present, most of the electric bicycle frames on the market are designed as fixed structures to improve the strength during use and cannot be folded, which occupies the storage space during carrying and transportation, causes the inconvenience of carrying and transportation, and increases the difficulty and cost of transportation. INVENTION CONTENTS
[0004] The utility model solves the technical problem that most of the electric bicycle frames on the market are designed as fixed structures to improve the strength during use and cannot be folded, which occupies the storage space during carrying and transportation, causes the inconvenience of carrying and transportation, and increases the difficulty and cost of transportation.
[0005] The utility model adopts the technical scheme that a front and rear folding type electric bicycle frame, including electric bicycle rear frame and front frame, the both ends of electric bicycle rear frame and the both ends of front frame are provided with folding device, the outer surface of one end of front frame is provided with storage device, the folding device can fold and store front frame on one side of electric bicycle rear frame, the storage device is convenient for placing and storing water cup and smaller articles of the person who rides a bicycle.
[0006] Preferably, the folding device includes a rotating block, the one side of one end of the electric bicycle rear frame is fixedly connected with a first protrusion in a symmetrical manner, the one side of the electric bicycle rear frame is fixedly connected with a limiting block in a symmetrical manner, a clamping groove is formed in the one side of the limiting block, a round block is fixedly connected to the one side of one end of the electric bicycle rear frame, the one end of the rotating block is rotatably connected to the one side of the two first protrusions, a round groove is formed in the one end of the front frame, the round block is inserted into the inner wall of the round groove, the one side of the front frame is fixedly connected to the one side of the rotating block, a second protrusion is fixedly connected to the one side of the front frame in a symmetrical manner, a threaded rod is rotatably connected between the one sides of the second protrusions, the one end of the threaded rod is inserted between the two limiting blocks, a screw hole block is screw-connected to the outer surface of the threaded rod, a clamping frame is rotatably connected to the one side of the screw hole block, the clamping frame is sleeved on the outer surface of the threaded rod, and the both ends of the clamping frame are inserted into the inner walls of the two clamping grooves.
[0007] The effect achieved by the above components is that: by arranging the folding device, when the electric bicycle is not used, the threaded hole block can be manually screwed to a certain position on the threaded rod, the clamping frame is pulled out of the clamping groove on the limiting block, the threaded rod is rotated to a certain angle in the inner wall of the second protrusion, the other end of the threaded rod is turned out from between the two limiting blocks, the front frame is turned to a certain angle between the two first protrusions by the rotating block, the round block is pulled out of the round groove, and the front frame is folded and stored on one side of the rear frame of the electric bicycle, thereby reducing the storage space occupied when carrying, facilitating carrying, and reducing the difficulty and cost of transportation.
[0008] Preferably, the outer surface of the threaded hole block is fixedly connected with a plurality of twisting blocks, and the plurality of twisting blocks are arranged at equal distances.
[0009] The effect achieved by the above components is that: by arranging the twisting blocks, the contact area of the outer surface of the threaded hole block can be increased, and the threaded hole block can be easily held and twisted manually.
[0010] Preferably, one end of the threaded rod is fixedly connected with a stop block, and the outer surface size of the stop block is larger than the inner wall size of the threaded hole block.
[0011] The effect achieved by the above components is that: by arranging the stop block, the threaded hole block and the clamping frame can be limited on the threaded rod, and are not easy to lose.
[0012] Preferably, both sides of the rotating block are fixedly connected with bearings, and the outer ring of the bearing is fixedly connected with one side of the first protrusion.
[0013] The effect achieved by the above components is that: by arranging the bearing, the rotating wear between the rotating block and the first protrusion can be reduced, the service life of the two is improved, and the folding operation is facilitated.
[0014] Preferably, the storage device comprises a storage barrel, the outer surface of the storage barrel is fixedly connected with an elastic arc block, the inner wall of the elastic arc block is fixedly connected with a rubber block, and the outer surface of one end of the front frame is inserted into the inner wall of the elastic arc block and the rubber block.
[0015] The effect achieved by the above components is that: by arranging the storage device, the elastic arc block and the rubber block on the outer surface of the storage barrel can be clamped on the outer surface of one end of the front frame before the electric bicycle is used, so that when the electric bicycle is used, the carried water cup and smaller volume articles can be placed in the storage barrel for storage, facilitating the riding of the rider.
[0016] Preferably, both ends of the elastic arc block are fixedly connected with limiting plates, and the limiting plates are fixed on both sides of the opening of the elastic arc block in an inclined manner.
[0017] The effect achieved by the components is that the limiting plate can increase the area at the entrance of the elastic arc block, facilitating the fast alignment and clamping of one end of the front frame.
[0018] Preferably, the outer surface of the storage barrel is fixedly connected with a plurality of reinforcing rods in a symmetrical manner, and one end of the reinforcing rod is fixedly connected with the outer surface of the elastic arc block.
[0019] The effect achieved by the components is that the reinforcing rod can increase the connecting area between the storage barrel and the elastic arc block, so that the connecting part is more firm and stable.
[0020] The beneficial effects of the utility model are:
[0021] When the electric bicycle is not needed, the folding device can be manually used to screw the screw hole block on the threaded rod to a certain position at one end, drive the clamping frame to be pulled out from the clamping groove on the limiting block, then rotate the threaded rod in the inner wall of the second protrusion to a certain angle, make the other end of the threaded rod rotate out from between the two limiting blocks, finally rotate the front frame between the two first protrusions by means of the rotating block to a certain angle, drive the round block to be pulled out from the circular groove, and fold and store the front frame on one side of the rear frame of the electric bicycle, so as to reduce the space occupied for storage when carrying, facilitate carrying, and reduce the difficulty and cost of transportation. BRIEF DESCRIPTION OF DRAWINGS
[0022] The utility model will be further described below in combination with the drawings and examples.
[0023] Figure 1 It is the structural schematic diagram of the utility model.
[0024] Figure 2 It is the three-dimensional structure schematic diagram of the rear frame of the utility model electric bicycle;
[0025] Figure 3 It is the three-dimensional structure schematic diagram of the front frame of the utility model;
[0026] Figure 4 It is the three-dimensional structure schematic diagram of the storage barrel of the utility model.
[0027] Legend: 1, the rear frame of the electric bicycle; 2, folding device; 3, storage device; 4, front frame; 21, first protrusion; 22, limiting block; 23, clamping groove; 24, round block; 25, circular groove; 26, rotating block; 27, second protrusion; 28, threaded rod; 29, clamping frame; 210, screw hole block; 211, screw block; 212, stop block; 213, bearing; 31, storage barrel; 32, elastic arc block; 33, rubber block; 34, limiting plate; 35, reinforcing rod. DETAILED DESCRIPTION
[0028] The utility model will be described further in detail in connection with the drawings. These drawings are all simplified schematic diagrams, and only schematically show the basic structure of the utility model, so they only show the relevant components of the utility model.
[0029] In the description of the utility model, it should be pointed out that, unless explicitly defined and limited otherwise, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or integrally connected; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0030] Figures 1-4 The utility model discloses a front and rear folding type electric bicycle frame, including electric bicycle rear frame 1 and front frame 4, the both ends of electric bicycle rear frame 1 and the both ends of front frame 4 are provided with folding device 2, and the outer surface of one end of front frame 4 is provided with storage device 3, folding device 2 can fold and store front frame 4 on one side of electric bicycle rear frame 1, and storage device 3 is convenient for placing and storing the water cup and smaller articles of the person who rides a bicycle.
[0031] Figure 2 And Figure 3The folding device 2 shown comprises a rotating block 26, one side of one end of the electric bicycle rear frame 1 is fixedly connected with a first protrusion 21, one side of the electric bicycle rear frame 1 is fixedly connected with a limiting block 22, one side of the limiting block 22 is provided with a clamping groove 23, one side of one end of the electric bicycle rear frame 1 is fixedly connected with a round block 24, two sides of one end of the rotating block 26 are rotatably connected with one side of the two first protrusions 21, one end of the front frame 4 is provided with a round groove 25, the round block 24 is inserted into the inner wall of the round groove 25, one side of the front frame 4 is fixedly connected with one side of the rotating block 26, one side of the front frame 4 is fixedly connected with a second protrusion 27, one side of the second protrusion 27 is rotatably connected with a threaded rod 28, one end of the threaded rod 28 is inserted between the two limiting blocks 22, the outer surface of the threaded rod 28 is screwedly connected with a screw hole block 210, one side of the screw hole block 210 is rotatably connected with a clamping frame 29, the clamping frame 29 is sleeved on the outer surface of the threaded rod 28, and both ends of the clamping frame 29 are inserted into the inner walls of the two clamping grooves 23. When the electric bicycle is not needed, the screw hole block 210 can be manually screwed on the threaded rod 28 to a certain position, the clamping frame 29 is pulled out of the clamping groove 23 on the limiting block 22, then the threaded rod 28 is rotated to a certain angle in the inner wall of the second protrusion 27, the other end of the threaded rod 28 is rotated out of the two limiting blocks 22, and finally the front frame 4 is rotated to a certain angle between the two first protrusions 21 by means of the rotating block 26, the round block 24 is pulled out of the round groove 25, and the front frame 4 is folded and stored on one side of the electric bicycle rear frame 1, thereby reducing the space occupied for storage when carrying, facilitating carrying, and reducing the difficulty and cost of transportation.
[0032] Figure 2 and Figure 3 The outer surface of the screw hole block 210 is fixedly connected with a plurality of twisting blocks 211, and the plurality of twisting blocks 211 are arranged at equal distances. By arranging the twisting blocks 211, the contact area of the outer surface of the screw hole block 210 can be increased, and the screw hole block 210 can be conveniently held and twisted manually. One end of the threaded rod 28 is fixedly connected with a stop block 212, and the outer surface size of the stop block 212 is larger than the inner wall size of the screw hole block 210. By arranging the stop block 212, the screw hole block 210 and the clamping frame 29 can be limited on the threaded rod 28, and are not easy to lose. Both sides of the rotating block 26 are fixedly connected with bearings 213, and the outer rings of the bearings 213 are fixedly connected with one side of the first protrusion 21. By arranging the bearings 213, the rotating wear between the rotating block 26 and the first protrusion 21 can be reduced, the service life of the two is improved, and the folding operation is facilitated.
[0033] Figure 4The shown storage device 3 includes a storage barrel 31, the outer surface of the storage barrel 31 is fixedly connected with an elastic arc block 32, the inner wall of the elastic arc block 32 is fixedly connected with a rubber block 33, and one end of the outer surface of the front frame 4 is inserted into the inner wall of the elastic arc block 32 and the rubber block 33. Before using the electric bicycle, the elastic arc block 32 and the rubber block 33 on the outer surface of the storage barrel 31 can be clamped on the outer surface of one end of the front frame 4 to be fixed, so that when the electric bicycle is used, the carried water cup and small volume articles can be placed in the storage barrel 31 for storage, which is convenient for the rider to ride.
[0034] Figure 4 The two ends of the shown elastic arc block 32 are fixedly connected with limiting plates 34, and the limiting plates 34 are fixed on the two sides of the opening of the elastic arc block 32 in an inclined manner. By arranging the limiting plates 34, the area of the inlet of the elastic arc block 32 can be increased, and the one end of the front frame 4 can be quickly aligned and clamped in. The outer surface of the storage barrel 31 is fixedly connected with a plurality of reinforcing rods 35, and one end of the reinforcing rod 35 is fixedly connected with the outer surface of the elastic arc block 32. By arranging the reinforcing rod 35, the connecting area between the storage barrel 31 and the elastic arc block 32 can be increased, so that the connection is more firm and stable.
[0035] When the electric bicycle is not needed, the screw hole block 210 can be manually screwed on the threaded rod 28 to a certain position, the clamping frame 29 is pulled out from the clamping groove 23 on the limiting block 22, then the threaded rod 28 is rotated to a certain angle in the inner wall of the second protrusion 27, the other end of the threaded rod 28 is turned out from between the two limiting blocks 22, and finally the front frame 4 is rotated to a certain angle between the two first protrusions 21 by means of the rotating block 26, the round block 24 is pulled out from the circular groove 25, the front frame 4 is folded and stored on one side of the rear frame 1 of the electric bicycle, the space occupied for storage is reduced when carrying, the carrying is facilitated, and the difficulty and cost of transportation are reduced.
[0036] Before using the electric bicycle, the elastic arc block 32 and the rubber block 33 on the outer surface of the storage barrel 31 can be clamped on the outer surface of one end of the front frame 4 to be fixed, so that when the electric bicycle is used, the carried water cup and small volume articles can be placed in the storage barrel 31 for storage, which is convenient for the rider to ride.
[0037] Based on the above ideal embodiment according to the present application, through the above description, relevant personnel can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the contents in the specification, and must be determined according to the scope of the claims.
Claims
1. A front and rear folding electric bicycle frame comprising an electric bicycle rear frame (1) and a front frame (4), characterized in that: The both ends of the electric bicycle rear frame (1) are provided with folding devices (2) between the both ends of the front frame (4), one end of the outer surface of the front frame (4) is provided with a storage device (3), the folding device (2) can fold and store the front frame (4) on one side of the electric bicycle rear frame (1), the storage device (3) is convenient for placing and storing the water cup and smaller articles carried by the person riding the bicycle; the folding device (2) comprises a rotating block (26), one side of one end of the electric bicycle rear frame (1) is fixedly connected with a first protruding block (21) in a symmetrical manner, one side of the electric bicycle rear frame (1) is fixedly connected with a limiting block (22) in a symmetrical manner, a clamping groove (23) is formed in one side of the limiting block (22), one side of the electric bicycle rear frame (1) is fixedly connected with a round block (24), one end of the rotating block (26) is rotatably connected with one side of two first protruding blocks (21), one end of the front frame (4) is provided with a round groove (25), the round block (24) is inserted into the inner wall of the round groove (25), one side of the front frame (4) is fixedly connected with one side of the rotating block (26), one side of the front frame (4) is fixedly connected with a second protruding block (27) in a symmetrical manner, a threaded rod (28) is rotatably connected between one side of the second protruding block (27), one end of the threaded rod (28) is inserted between the two limiting blocks (22), a screw hole block (210) is threadedly connected to the outer surface of the threaded rod (28), a clamping frame (29) is rotatably connected to one side of the screw hole block (210), the clamping frame (29) is sleeved on the outer surface of the threaded rod (28), and the both ends of the clamping frame (29) are inserted into the inner walls of the two clamping grooves (23); a plurality of twisting blocks (211) are fixedly connected to the outer surface of the screw hole block (210), and the plurality of twisting blocks (211) are arranged at equal distances; one end of the threaded rod (28) is fixedly connected with a blocking block (212), and the outer surface size of the blocking block (212) is larger than the inner wall size of the screw hole block (210).
2. The front and rear folding electric bicycle frame according to claim 1, characterized in that: Both sides of the rotating block (26) are fixedly connected with bearings (213), and the outer ring of the bearing (213) is fixedly connected with one side of the first protruding block (21).
3. The front and rear folding electric bicycle frame according to claim 1, characterized in that: The storage device (3) comprises a storage barrel (31), the outer surface of the storage barrel (31) is fixedly connected with an elastic arc block (32), the inner wall of the elastic arc block (32) is fixedly connected with a rubber block (33), and the outer surface of one end of the front frame (4) is inserted into the inner walls of the elastic arc block (32) and the rubber block (33).
4. The front and rear folding electric bicycle frame according to claim 3, characterized in that: Both ends of the elastic arc block (32) are fixedly connected with limiting plates (34), and the limiting plates (34) are fixed on both sides of the opening of the elastic arc block (32) in an inclined manner.
5. A front and rear folding electric bicycle frame as claimed in claim 4, characterized in that: The outer surface of the storage barrel (31) is fixedly connected with a plurality of reinforcing rods (35) in a symmetrical manner, and one end of the reinforcing rod (35) is fixedly connected with the outer surface of the elastic arc block (32).