Intelligent speed change derailleur of electric bicycle
By designing a cover and arc-shaped plate structure on the electric bicycle derailleur, combined with components such as electric push rods and magnetic blocks, the problem of electronic derailleurs being easily contaminated and jammed on muddy ground has been solved, improving ease of use and chain life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-14
- Publication Date
- 2026-03-24
AI Technical Summary
Conventional electronic derailleurs are easily contaminated and jammed by dirt or impurities during use, affecting their performance.
An intelligent derailleur for electric bicycles was designed, which adopts a shield and arc plate structure, combined with components such as electric push rod, magnetic block and limit frame to prevent dirt and impurities from entering the derailleur, and is easy to disassemble and repair through fixing bolts.
It effectively prevents dirt and impurities from entering the chain derailleur, improving ease of use and chain lifespan, and reducing mechanical wear and maintenance difficulty.
Smart Images
Figure CN224029180U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of electric bicycles, in particular to an intelligent variable-speed derailleur for electric bicycles. BACKGROUND
[0002] An electric bicycle is a hybrid vehicle that uses a battery as an auxiliary energy source, equipped with a motor, a controller and other components, while retaining the function of pedaling, supporting hybrid driving of human power and electric power. The electric bicycle often uses an electronic derailleur for speed change. The electronic derailleur is a device used in bicycle speed change system, which controls the movement of the chain through electronic signals to achieve the function of speed change. The electronic derailleur is usually composed of a derailleur, a speed lever and a battery, wherein the derailleur is built-in motor, which is driven by electronic signals to control the movement of the chain. The working principle of the electronic derailleur is based on electronic signal control. The speed lever sends electronic signals to the controller, which drives the motor to move the derailleur, thereby changing the position of the chain. This design makes the speed change operation more accurate and fast, reduces mechanical wear and tear, and improves the comfort and durability of use. In the use of conventional electronic derailleur, the derailleur body is installed on the vehicle, the bottom end of the derailleur body is rotatably connected with a guide plate, the inner wall of the derailleur body and the guide plate is rotatably installed with a toothed disc, the surface of the toothed disc is connected with the chain, and the derailleur body controls the movement of the guide plate to control the chain to switch to different toothed discs.
[0003] For the above related technology, the inventor believes that the conventional electronic derailleur is easily polluted or blocked by impurities during use. The electric bicycle often travels on muddy roads, and impurities easily enter the derailleur during travel, causing pollution and corrosion inside the derailleur, and impurities stuck in the derailleur can cause speed change to be blocked, thereby affecting the use effect of the derailleur.
[0004] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it can include prior art known by those skilled in the art. CONTENT OF THE INVENTION
[0005] In order to solve the problem that the conventional electronic derailleur is easily polluted or blocked by impurities during use, the present application provides an intelligent variable-speed derailleur for electric bicycles.
[0006] The intelligent variable-speed derailleur for electric bicycles provided by the present application adopts the following technical scheme:
[0007] The utility model provides an electric bicycle intelligent speed change derailleur, including the derailleur body and the shelter cover, the inner wall rotation of the derailleur body is installed with the guide plate, the inner wall of the derailleur body and the guide plate are all rotationally connected with the toothed disc, the surface of the shelter cover is slidably installed with the arc plate, and the one end of shelter cover is connected with the external cover, the size specification of the one end of external cover is adapted to the size specification of the surface of shelter cover, one end of arc plate is fixedly connected with the control frame, the one end of shelter cover is connected with the surface of guide plate, and the center of shelter cover is on the same straight line with the center of external cover, the section of arc plate is'C'letter shape structure.
[0008] Preferably, the inner wall of the control frame is slidably installed with the surface of the shelter cover, and the surface of the control frame is rotationally connected with the electric push rod.
[0009] Preferably, one end of the arc plate is fixedly installed with the adsorption block, the adsorption block is a magnetic block, and the top of the adsorption block is movably connected with the connecting block.
[0010] Preferably, the surface of the shelter cover and the external cover is fixedly connected with the limiting frame, the inner wall of the limiting frame is slidably installed with the surface of the arc plate, and the size specification of the inner wall of the limiting frame is adapted to the size specification of the surface of the arc plate.
[0011] Preferably, the inner wall of the shelter cover is fixedly connected with the fixing bolt, the surface of the fixing bolt is connected with the surface of the external cover, and the center of the fixing bolt is on the same straight line with the center of the shelter cover.
[0012] Preferably, the surface of the guide plate is fixedly installed with the connecting seat, the inner wall of the connecting seat is rotationally connected with the rotating frame, and the section of the rotating frame is'U'letter shape structure.
[0013] Preferably, the surface of the rotating frame is connected with the spring, and the inner wall of the spring is fixedly installed with the inner wall of the connecting seat.
[0014] In summary, the utility model includes the following beneficial technical effects:
[0015] 1. By installing a shielding cover on the surface of the guide plate, the surface of the shielding cover is installed with an external cover, and the surface of the shielding cover is slidingly connected with an arc-shaped plate, so as to shield the surface of the guide plate by means of the shielding cover cooperating with the external cover and the arc-shaped plate, thereby avoiding the entry of external soil and impurities into the guide plate, one end of the arc-shaped plate is installed with a control frame, the surface of the control frame is rotatably connected with an electric push rod, so as to control the rotation of the control frame after adjusting the length of the electric push rod, which facilitates the opening of the arc-shaped plate, one end of the arc-shaped plate is installed with a magnetic adsorption block, the surface of the adsorption block is connected with an iron connecting block, so as to facilitate the fixation of the arc-shaped plate by means of the adsorption block and the connecting block, the surfaces of the shielding cover and the external cover are fixedly installed with a limiting frame, so as to keep the arc-shaped plate connected with the surface of the shielding cover by means of the limiting frame; compared with the prior art, the convenience of using the electronic chain shifter on muddy land is effectively improved;
[0016] 2. The fixed bolt can also be installed on the surface of the shielding cover to facilitate the installation and removal of the external cover, the surface of the guide plate is installed with a connecting seat, the inner wall of the connecting seat is rotatably connected with a rotating frame, so as to shield the surface of the chain by means of the rotating frame, the inner wall of the connecting seat is installed with a spring, so as to connect one end of the rotating frame with the surface of the shielding cover by means of the spring; the use effect of the device is effectively improved. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 is the overall structure schematic diagram of the application embodiment electric bicycle intelligent speed change chain shifter;
[0018] Figure 2 is the shielding cover structure schematic diagram of the application embodiment;
[0019] Figure 3 is the side view structure schematic diagram of the application embodiment;
[0020] Figure 4 is the structure schematic diagram of A of the application embodiment.
[0021] BRIEF DESCRIPTION OF DRAWINGS: 1, chain shifter body; 2, guide plate; 3, toothed disc; 4, shielding cover; 5, arc-shaped plate; 6, external cover; 7, control frame; 8, electric push rod; 9, adsorption block; 10, connecting block; 11, limiting frame; 12, fixed bolt; 13, connecting seat; 14, rotating frame; 15, spring. DETAILED DESCRIPTION
[0022] The application will be further described in detail below with reference to the accompanying drawings. Figure 1 —4
[0023] The application embodiment discloses an electric bicycle intelligent speed change chain shifter, which is referred to Figure 1 Figure 2 , including the derailleur body 1, in use, the derailleur body 1 is installed on the vehicle, the bottom end of the derailleur body 1 is rotatably connected with the guide plate 2, the inner wall of the derailleur body 1 and the guide plate 2 is rotatably installed with the tooth disc 3, the surface of the tooth disc 3 is connected with the chain, the derailleur body 1 controls the guide plate 2 to move and controls the chain to switch to the different top ends of the tooth disc 3, the shielding cover 4 is installed on the surface of the guide plate 2, the surface of the shielding cover 4 is installed with the external cover 6, and the surface of the shielding cover 4 is slidably connected with the arc plate 5, the arc plate 5 is shielded on the surface of the guide plate 2 by cooperating with the shielding cover 4 and the external cover 6, which effectively improves the convenience of the electronic derailleur in the muddy land, thereby avoiding the mud and impurities in the outside into the guide plate 2.
[0024] Referring to Figure 2 , one end of the arc plate 5 is installed with the control frame 7, the surface of the control frame 7 is rotatably connected with the electric push rod 8, one end of the electric push rod 8 is rotatably installed with the surface of the guide plate 2, the length of the electric push rod 8 is adjusted to control the rotation of the control frame 7, which is convenient to control the opening of the arc plate 5, thereby avoiding the accumulation of rainwater in the shielding cover 4, and the bottom end of the shielding cover 4 is closed conveniently in the muddy road, one end of the arc plate 5 is installed with the magnetic adsorption block 9, the surface of the adsorption block 9 is connected with the iron connecting block 10, one end of the connecting block 10 is connected with the surface of the shielding cover 4, the arc plate 5 is fixed by the adsorption block 9 and the connecting block 10, thereby ensuring the shielding effect of the arc plate 5, the surface of the shielding cover 4 and the external cover 6 is fixedly installed with the limiting frame 11, the inner wall of the limiting frame 11 is slidably connected with the surface of the arc plate 5, the moving position of the arc plate 5 is limited by the limiting frame 11, thereby keeping the arc plate 5 connected with the surface of the shielding cover 4.
[0025] Referring to Figure 2 - Figure 4 The fixed bolt 12 is installed on the surface of the shielding cover 4, the surface of the fixed bolt 12 is connected with the surface of the external cover 6, the external cover 6 is installed and disassembled by the fixed bolt 12, and it is more convenient when the electronic derailleur is overhauled, the surface of the guide plate 2 is installed with the connecting seat 13, the inner wall of the connecting seat 13 is rotatably connected with the rotating frame 14, the surface of the chain is shielded by the rotating frame 14, which effectively improves the protection effect of the chain, thereby prolonging the service life of the chain, the inner wall of the connecting seat 13 is installed with the spring 15, one end of the spring 15 is connected with the surface of the rotating frame 14, the rotating frame 14 is pushed by the spring 15, one end of the rotating frame 14 is connected with the surface of the shielding cover 4, and the state of the chain is observed after the rotating frame 14 is rotated.
[0026] The implementation principle of the electric bicycle intelligent variable speed derailleur embodiment of the application is as follows: the shielding cover 4 is installed on the surface of the guide plate 2, the surface of the shielding cover 4 is provided with the external cover 6, and the surface of the shielding cover 4 is slidably connected with the arc-shaped plate 5, so as to shield the surface of the guide plate 2 by means of the shielding cover 4, the external cover 6 and the arc-shaped plate 5, thereby avoiding the entry of mud and impurities from the outside into the guide plate 2. One end of the arc-shaped plate 5 is provided with the control frame 7, the surface of the control frame 7 is rotatably connected with the electric push rod 8, one end of the electric push rod 8 is rotatably installed on the surface of the guide plate 2, so as to control the rotation of the control frame 7 after adjusting the length of the electric push rod 8, conveniently control the opening of the arc-shaped plate 5, thereby avoiding the accumulation of rainwater in the shielding cover 4, and conveniently closing the bottom end of the shielding cover 4 on a muddy road. One end of the arc-shaped plate 5 is provided with the magnetic adsorption block 9, the surface of the adsorption block 9 is connected with the iron connecting block 10, one end of the connecting block 10 is connected with the surface of the shielding cover 4, so as to conveniently fix the arc-shaped plate 5 by means of the adsorption block 9 and the connecting block 10, thereby ensuring the shielding effect of the arc-shaped plate 5. The surfaces of the shielding cover 4 and the external cover 6 are fixedly provided with the limiting frame 11, the inner wall of the limiting frame 11 is slidably connected with the surface of the arc-shaped plate 5, so as to limit the moving position of the arc-shaped plate 5 by means of the limiting frame 11, thereby keeping the arc-shaped plate 5 connected with the surface of the shielding cover 4.
[0027] The fixed screw 12 can also be installed on the surface of the shielding cover 4, the surface of the fixed screw 12 is clamped with the surface of the external cover 6, so as to conveniently install and dismount the external cover 6 by means of the fixed screw 12, and it is more convenient to overhaul the electronic derailleur. The surface of the guide plate 2 is provided with the connecting seat 13, the inner wall of the connecting seat 13 is rotatably connected with the rotating frame 14, so as to shield the surface of the chain by means of the rotating frame 14, effectively improving the protection effect of the chain, thereby prolonging the service life of the chain. The inner wall of the connecting seat 13 is provided with the spring 15, one end of the spring 15 is clamped with the surface of the rotating frame 14, so as to push the rotating frame 14 by means of the spring 15, connect one end of the rotating frame 14 with the surface of the shielding cover 4, and conveniently check the state of the chain after rotating the rotating frame 14.
[0028] The above are preferred embodiments of the application, which do not limit the protection scope of the application, therefore: any equivalent changes made on the structure, shape and principle of the application shall be covered within the protection scope of the application.
Claims
1. An electric bicycle intelligent variable speed derailleur, comprising a derailleur body (1) and a shielding cover (4), characterized in that: The inner wall of the derailleur body (1) is rotatably installed with a guide plate (2), the inner wall of the derailleur body (1) and the guide plate (2) are rotatably connected with a tooth disc (3), the surface of the shielding cover (4) is slidably installed with an arc-shaped plate (5), one end of the shielding cover (4) is connected with an external cover (6), the size specification of one end of the external cover (6) is matched with the surface size specification of the shielding cover (4), and one end of the arc-shaped plate (5) is fixedly connected with a control frame (7).
2. The electric bicycle intelligent derailleur according to claim 1, characterized in that: One end of the shielding cover (4) is connected with the surface of the guide plate (2), and the center of the shielding cover (4) is on the same straight line with the center of the external cover (6), and the cross section of the arc-shaped plate (5) is in the shape of "C".
3. The electric bicycle intelligent derailleur according to claim 1, characterized in that: The inner wall of the control frame (7) is slidably installed with the surface of the shielding cover (4), and the surface of the control frame (7) is rotatably connected with an electric push rod (8), one end of the electric push rod (8) is rotatably installed with the surface of the guide plate (2).
4. The electric bicycle intelligent derailleur according to claim 1, characterized in that: One end of the arc-shaped plate (5) is fixedly installed with an adsorption block (9), the adsorption block (9) is a magnetic block, the top of the adsorption block (9) is movably connected with a connecting block (10), one end of the connecting block (10) is fixedly installed with the surface of the shielding cover (4), and the connecting block (10) is an iron block.
5. The electric bicycle intelligent derailleur according to claim 1, characterized in that: The surface of the shielding cover (4) and the external cover (6) is fixedly connected with a limiting frame (11), the inner wall of the limiting frame (11) is slidably installed with the surface of the arc-shaped plate (5), and the size specification of the inner wall of the limiting frame (11) is matched with the surface size specification of the arc-shaped plate (5).
6. The electric bicycle intelligent derailleur according to claim 1, characterized in that: The inner wall of the shielding cover (4) is fixedly connected with a fixing bolt (12), the surface of the fixing bolt (12) is connected with the surface of the external cover (6), and the center of the fixing bolt (12) is on the same straight line with the center of the shielding cover (4).
7. The electric bicycle intelligent derailleur according to claim 1, characterized in that: The surface of the guide plate (2) is fixedly installed with a connecting seat (13), the inner wall of the connecting seat (13) is rotatably connected with a rotating frame (14), and the cross section of the rotating frame (14) is in the shape of "U".
8. The electric bicycle intelligent derailleur according to claim 7, characterized in that: The surface of the rotating frame (14) is connected with a spring (15), and the inner wall of the spring (15) is fixedly installed with the inner wall of the connecting seat (13).