Bicycle handlebar left and right direction lamp

Abstract

The utility model discloses a left and right direction lamp for bicycle handlebar belongs to bicycle accessory technical field, and one side of installation shell has the opening, and the circuit board, lamp group and connecting wire are installed in the installation shell, and the circuit board and lamp group electric connection, and the circuit board and connecting wire electric connection, and the opening of installation shell is connected with fixed cover, and the one end of fixed cover away from fixed cover of installation shell is fixedly connected with the locating block, and the fixed plate is opened with the locating groove corresponding the locating block, and the one end of locating block penetrates the locating groove, and the fixed plate still is opened with the threading groove, and the one end of fixed screw rod penetrates fixed cover, installation shell, fixed part and deformation piece in proper order to be connected with the drive block in screw thread, and the connecting wire passes through the threading groove of installation shell and fixed part electric connection to the battery, and the outside of battery is sleeved with the protection shell, and the protection shell is connected to the fixed plate, and the utility model discloses through hiding in the handlebar in the battery, has big capacity, and does not need frequently replacing battery, does not occupy handlebar external space, improves the convenience.

Description

Technical Field

[0001] This utility model relates to the field of bicycle accessories technology, specifically to a left and right turn signal for bicycle handlebars. Background Technology

[0002] Currently, nighttime cycling, as a leisure activity that combines exercise with a relaxed lifestyle, is widely welcomed by office workers, freelancers, students, and fitness enthusiasts. It serves as a natural social bond, allowing enthusiasts to traverse various corners of the city together. It is not only a high-quality aerobic exercise beneficial to cardiovascular health, but also allows riders to appreciate the beauty of the city while effectively relieving anxiety and releasing stress. It has a large following across all age groups. To improve the safety and convenience of nighttime cycling, many bicycle accessories have been developed, including left and right turn signals, which effectively provide directional reminders to following vehicles at night, offering ample warnings.

[0003] However, in existing technologies, bicycles have numerous components but limited handlebar space. Excessive components and exposed wiring can pose other safety hazards to riders. Chinese patent CN222876156U discloses a left and right turn signal fixing structure for bicycle handlebars. It uses a screw to drive a nut to press against a deformable piece, fixing the turn signal body to the inner hole at the end of the handlebar, and designing the control button's connection wire inside the handlebar. This saves space and avoids excessive exposed wiring; however, it ultimately requires placing the button on the outside of the handlebar, potentially necessitating handlebar modification, otherwise, significant wiring interference cannot be avoided. Furthermore, its built-in battery is small, requiring frequent removal and replacement of the internal button battery, which is inconvenient. Alternatively, using an external power source still requires finding a place to fix it on the handlebar, resulting in insufficient convenience.

[0004] Therefore, to improve ease of use, a left and right turn signal for bicycle handlebars is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a left and right turn light for bicycle handlebars, which solves at least one of the technical problems mentioned in the background art.

[0006] The objective of this utility model can be achieved through the following technical solutions: A bicycle handlebar turn signal includes: A turn signal assembly includes a mounting housing, a circuit board, a lamp assembly, a fixing cover, a fixing screw, a connecting wire, and a positioning block. The mounting housing has an opening on one side. The circuit board, the lamp assembly, and the connecting wire are installed inside the mounting housing. The circuit board and the lamp assembly are electrically connected. The circuit board and the connecting wire are electrically connected. The fixing cover is connected to the opening of the mounting housing. The positioning block is fixedly connected to the end of the mounting housing away from the fixing cover. The fastener includes a fixing plate and a wire-passing groove. The fixing plate has a positioning groove corresponding to the positioning block. One end of the positioning block passes through the positioning groove. The fixing plate also has a wire-passing groove. One end of the fixing screw passes through the fixing cover, the mounting shell, the fixing element and the deformable piece in sequence, and is threadedly connected to the driving block. The positioning block is also used to limit the rotation of the deformable piece. The connecting wire passes through the wiring groove of the mounting shell and the fixing member and is electrically connected to the battery. The battery is fitted with a protective shell on the outside, which is used to fix the battery and is connected to the fixing plate.

[0007] The bicycle handlebar left and right turn lights provided by this utility model have the following advantages compared with the prior art: By inserting the positioning block of the mounting shell into the positioning groove of the fixing piece, and connecting the protective shell that fixes the battery to the fixing piece, the battery is electrically connected to the circuit board through the connecting wire to power the light assembly. After assembly, the battery and its protective shell are inserted into the handlebar hole of the bicycle, the fixing piece abuts against the end of the bicycle handlebar, and then the fastening bolt is rotated. The fastening bolt drives the drive block to move, pressing against the deformable piece and causing the deformable piece to deform and expand to both sides to press against the inner wall of the bicycle handlebar, thus completing the installation. When disassembly is required, simply loosen the fastening bolt. After the deformable piece loses the pressing force of the drive block, the whole assembly can be removed from the handlebar, improving the convenience of disassembly and assembly.

[0008] The battery is concealed within the bicycle handlebars using a device that is fixed in the handlebars. It has a large capacity, providing a long working time, eliminating the need for frequent battery replacements, and taking up almost no space on the outside of the handlebars, thus improving ease of use.

[0009] Furthermore, a fixing lug is fixedly connected to the side of the fixing plate away from the mounting shell, a clearance hole is provided on the protective shell corresponding to the position of the deformable piece, a first limiting folding lug is provided on the protective shell corresponding to the fixing lug, a second limiting folding lug is provided on the protective shell corresponding to one end of the battery, and an end cap is connected to the end of the protective shell away from the fixing member, the end cap abutting against the other end of the battery.

[0010] Furthermore, the circuit board also includes a charging circuit and a charging interface, the battery is a rechargeable battery, and the mounting shell has a connection window at the position corresponding to the charging interface.

[0011] Furthermore, it also includes a protective plug for insertion into the connection window.

[0012] Furthermore, the fixing plate is fixedly connected to a fixing post, and one end of the protective plug is sleeved onto the fixing post.

[0013] Furthermore, it also includes a control component, which includes a touchpad and a magnetic component. The touchpad is slidably connected to a fixing component, and the circuit board includes a sensor for detecting changes in magnetic force.

[0014] Furthermore, the magnetic component is a magnet, and the sensor is a Hall sensor.

[0015] Furthermore, a slider is fixedly connected to the fixed plate, a groove is provided on the touch panel, the slider is slidably connected to the groove, a second mounting groove is provided on the fixed plate along the sliding direction of the slider in the groove, a first mounting groove is provided on the touch panel corresponding to the position of the second mounting groove, the first mounting groove and the second mounting groove are combined to form a receiving groove, and a return spring is installed in the receiving groove.

[0016] Furthermore, the protective shell is made of stainless steel.

[0017] Furthermore, the second limiting lug is covered with insulating rubber. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the isometric structure of a bicycle handlebar left and right turn signal according to this utility model; Figure 2 This is an exploded axonometric view of the left and right turn signals for bicycle handlebars according to this utility model. Figure 3 This is an exploded axonometric view of the turn signal assembly of this utility model; Figure 4 This is an isometric structural diagram of the present invention with the protective shell, battery and end cap removed; Figure 5 This is a schematic diagram of the structure of the protective shell of this utility model; Figure 6 This is a front view of a bicycle handlebar left and right turn lights according to this utility model; Figure 7 This is an exploded isometric structural diagram of the control component and the fixing component of this utility model; Figure 8 This is a schematic diagram of the connection structure between the control component and the fixing component of this utility model; In the diagram: 1-Turn signal assembly, 2-Control component, 3-Fixing component, 4-Deformable piece, 5-Drive block, 6-Battery, 7-Protective shell, 8-End cap, 9-Protective plug, 11-Mounting shell, 12-Circuit board, 121-Sensor, 13-Lamp assembly, 14-Fixing cover, 15-Fixing screw, 16-Connecting wire, 17-Positioning block, 21-Touch panel, 22-Magnetic component, 23-Slide groove, 24-First mounting groove, 31-Fixing plate, 32-Wire groove, 33-Slider, 34-Second mounting groove, 35-Reset spring, 36-Fixing ear, 37-Fixing post, 71-Leaving hole, 72-First limiting folding ear, 73-Second limiting folding ear. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings showing multiple embodiments according to this application. It should be understood that the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments described in this application without creative effort will fall within the scope of protection of this application.

[0021] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing specific embodiments only and is not intended to limit this application; the terms "comprising," "including," "having," "containing," etc., in the description, claims, and accompanying drawings of this application are open-ended terms. Therefore, "comprising," "including," or "having" refers to, for example, a method or apparatus having one or more steps or elements, but is not limited to having only these one or more elements. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" 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 direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] It should be emphasized that when the term "comprising / including" is used in this specification, it is used to explicitly indicate the presence of the stated feature, integer, step, or component, but does not exclude the presence or addition of one or more other features, integers, steps, parts, or groups of features, integers, steps, or parts.

[0025] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0026] Existing technologies for fixing the cross tube of bicycle handlebars use a hanging core structure, commonly the sunflower type, the expansion type, and the eccentric block type. The sunflower type cannot be removed after installation, while the expansion and eccentric block types lack internal space for cable threading due to their installation structure. Only the fixing structure mentioned in the background art has inward cable threading space. Based on this: Please see Figure 1-3 As shown, this utility model is a left and right turn signal for bicycle handlebars, comprising: The turn signal assembly 1 includes a mounting housing 11, a circuit board 12, a lamp assembly 13, a fixing cover 14, a fixing screw 15, a connecting wire 16, and a positioning block 17. The mounting housing 11 has an opening on one side. The circuit board 12, the lamp assembly 13, and the connecting wire 16 are installed inside the mounting housing 11. The circuit board 12 and the lamp assembly 13 are electrically connected. The circuit board 12 is electrically connected to the connecting wire 16. The fixing cover 14 is connected to the opening of the mounting housing 11. The positioning block 17 is fixedly connected to the end of the mounting housing 11 away from the fixing cover 14. The fastener 3 includes a fixing plate 31 and a wire passage 32. The fixing plate 31 has a positioning groove corresponding to the positioning block 17. One end of the positioning block 17 passes through the positioning groove. The fixing plate 31 also has a wire passage 32. One end of the fixing screw 15 passes through the fixing cover 14, the mounting shell 11, the fixing member 3 and the deformable piece 4 in sequence, and is threadedly connected to the driving block 5. The positioning block 17 is also used to limit the rotation of the deformable piece 4. The connecting wire 16 passes through the wire groove 32 of the mounting shell 11 and the fastener 3 and is electrically connected to the battery 6. The battery 6 is fitted with a protective shell 7, which is used to fix the battery 6 and is connected to the fixing plate 31.

[0027] In this embodiment, the turn signal assembly 1 is assembled first, that is, the circuit board 12 is locked inside the mounting housing 11, the lamp assembly 13 is fixed on the circuit board 12, and the pins of the lamp assembly 13 are soldered to the output terminal of the power supply circuit of the circuit board 12. The fixing cover 14 is then covered, and the fixing cover 14 serves as the lamp cover. The fixing screw 15 passes through the fixing cover 14 and the mounting housing 11. Then, the deformable piece 4 is fitted onto the fixing screw 15 and is positioned close to the positioning block 17 to limit the deformable piece 4. Then, the drive block 5 is screwed in by threads to bring the drive block 5 close to the deformable piece 4 so that the deformable piece 4 will not disengage from the positioning block 17. Finally, the positioning block 17 of the mounting housing 11 is inserted. The battery 6 is fixed in the positioning groove of the fixing part 3, and the protective shell 7 is connected to the fixing part 3. The battery 6 is electrically connected to the circuit board 12 through the connecting wire 16 to provide power to the light assembly 13. After assembly, the battery 6 and its protective shell 7 are inserted into the bicycle handlebar hole. The fixing part 3 abuts against the end of the bicycle handlebar. Then the fastening bolt is rotated, and the fastening bolt drives the drive block 5 to move. After pressing against the deformable piece 4, it causes the deformable piece 4 to deform and expand to both sides to press against the inner wall of the bicycle handlebar, thus completing the installation. When disassembly is required, only the fastening bolt needs to be loosened. After the deformable piece 4 loses the pressing force of the drive block 5, the whole can be removed from the handlebar.

[0028] The device fixed in the bicycle handlebars conceals the battery 6 within the handlebars. It has a large capacity, providing a long working time without the need for frequent battery replacements. It also occupies almost no space on the outside of the handlebars, improving ease of use. This device can be used alone or in pairs, located at the ends of the left and right handlebars respectively. When used in pairs, it can improve visibility in the dark. In use, the battery 6 housing and battery 6 can be installed in each of the two devices, or one battery 6 can be removed and its connecting wire 16 connected to the battery 6 of the other device via a connector terminal. The other device needs to have a lead-out hole to lead out the wire and connect to a connector nut for connection.

[0029] It should also be noted that in this embodiment, the diameter of the protective shell 7 of the battery 6 should be smaller than the inner diameter of the bicycle handlebar tube to facilitate insertion into the handlebar. The battery 6 model and the connection method of the connecting wire 16 should be selected to avoid excessive tightness that could cause wear or difficulty in disassembly and assembly.

[0030] Optionally, as shown in 4-6, a fixing ear 36 is fixedly connected to the side of the fixing plate 31 away from the mounting shell 11, a clearance hole 71 is opened on the protective shell 7 corresponding to the position of the deformable piece 4, a first limiting fold ear 72 is provided on the protective shell 7 corresponding to the fixing ear 36, a second limiting fold ear 73 is provided on the protective shell 7 corresponding to one end of the battery 6, and an end cap 8 is connected to the end of the protective shell 7 away from the fixing member 3, and the end cap 8 abuts against the other end of the battery 6.

[0031] In this embodiment, when installing the battery 6, the battery 6 along with the connecting wire 16 slides into the protective shell 7 from the side near the fixing plate 31. After the battery 6 passes the position of the second limiting tab 73, the second limiting tab 73 is bent so that it can prevent the battery 6 from detaching from the protective shell 7 in the direction near the fixing plate 31. Then, the end cap 8 is installed, which can be connected by threads or hot melt adhesive, so that one end of the end cap 8 abuts against the other end of the battery 6, thus clamping and limiting the battery 6 and preventing it from shaking inside the protective shell 7. When abutting, attention should be paid to insulation protection. The end cap 8 should be made of insulating material. When installing the protective shell 7, one end of the protective shell 7 is fitted over the outside of the deformable piece 4 and the fixing ear 36 and directly abuts against the fixing plate 31. The fixing plate 31 is provided with necessary positioning mechanisms so that the position of the protective shell can only move in the direction of approaching or moving away from the fixing plate 31. Then, it is bent by the first limiting folding ear 72 and abuts against the fixing ear 36 to restrict the protective shell 7 from moving away from the fixing plate 31, thus completing the installation. When tightening the fixing screw 15, the deformable piece 4 will directly abut against the inner wall of the handlebar through the clearance hole 71 to achieve fastening.

[0032] It should also be noted that when using two devices, i.e. two left and right turn lights, if they are powered by a shared battery 6, an outlet hole can be made at the end cap 8. However, at the same time, the end cap 8 is no longer suitable for threaded connection to the protective shell 7, but should be bonded with hot melt adhesive.

[0033] Optionally, please refer to Figure 2-4 The circuit board 12 also includes a charging circuit and a charging interface. The battery 6 is a rechargeable battery 6. The mounting shell 11 has a connection window at the position corresponding to the charging interface.

[0034] In this embodiment, a charging interface is provided for the turn signal, thereby enabling the charging of the battery 6 without the need for frequent disassembly and replacement of the battery 6. During cycling, it is common to carry a power bank to power the mobile phone so that it can be used for navigation. In this embodiment, the charging interface should preferably be the same Type-C interface as the mobile phone and be configured with the relevant charging protocol. It can be charged directly using the mobile phone charging cable without the need for additional wiring harness. In addition, the rechargeable battery 6 in this application should preferably be a cylindrical lithium battery 6 with a diameter of 14 mm, such as a 14500, which has a high energy density and can provide a longer service life with a smaller volume. The 14 mm diameter plus the protective shell 7 can easily be made slightly smaller than the inner diameter of the bicycle handlebars, 28.6 mm.

[0035] Optionally, please refer to Figure 2-4 It also includes a protective plug 9, which is used to connect to the connection window. In this embodiment, the protective plug 9 is used to protect the connection window and charging interface when charging is not required, preventing water or dust from entering.

[0036] Optionally, please refer to Figure 2 The fixing plate 31 is fixedly connected to the fixing post 37, and one end of the protective plug 9 is sleeved to the fixing post 37. In this embodiment, when the protective plug 9 is removed, one end of the protective plug 9 can be connected to the fixing post 37 of the fixing plate 31 to avoid loss.

[0037] Optionally, please refer to Figure 2-8 It also includes a control component 2, which includes a touch panel 21 and a magnetic component 22. The touch panel 21 is slidably connected to the fixing component 3. The circuit board 12 includes a sensor 121, which is used to detect changes in magnetic force. In this embodiment, the touch panel 21 is located on the side of the fixing member 3 away from the bicycle handlebars, and the touch panel 21 has a protrusion for touching. When touched and force is applied, the touch panel 21 can be moved to slide along the fixing member 3, thereby causing the magnetic member 22 to change the relative displacement with the sensor 121, causing a change in the magnetic field, which can be detected by the sensor 121 and converted into a pulse signal, which is used to switch the on and off state of the circuit to control the turn signal to turn on or off. Control by changing the magnetic field can reduce the number of interfaces, ensure the waterproof and dustproof performance of the device, and reduce the control wiring harness.

[0038] Optionally, the magnetic component 22 is a magnet and the sensor 121 is a Hall sensor 121. In this embodiment, the Hall sensor 121 can directly trigger voltage changes by the magnetic field changes generated by the displacement of the magnet, generating pulse signals and simplifying the control circuit. It should be noted that a filter circuit can be set at this time to filter the reverse voltage generated when the magnet moves away from the Hall sensor 121, so that the on / off state of the light can be controlled only when pressed.

[0039] Optionally, a slider 33 is fixedly connected to the fixed plate 31, and a groove 23 is provided on the touch panel 21. The slider 33 is slidably connected to the groove 23. A second mounting groove 34 is provided on the fixed plate 31 along the sliding direction of the slider 33 in the groove 23. A first mounting groove 24 is provided on the touch panel 21 at the position corresponding to the second mounting groove 34. The first mounting groove 24 and the second mounting groove 34 are combined to form a receiving groove, and a return spring 35 is installed in the receiving groove.

[0040] In this embodiment, when the touchpad 21 is pressed, the slide groove 23 of the touchpad 21 slides along the slider 33, thereby bringing the magnet closer to the Hall sensor 121. At this time, since the reset spring 35 spans between the first mounting groove 24 and the second mounting groove 34, the second mounting groove 34 drives one end of the reset spring 35 to press against the other end of the reset spring 35 in the first mounting groove 24. After the touchpad 21 is released, it can automatically reset under the action of the reset spring 35. The protruding direction of the touchpad 21 in this application should be located in a direction that is easy for the hand to contact. The operator does not need to find its precise position. The switching can be completed by touching and pressing with the hand. The operation is convenient and the control component 2 will not be difficult to find in the dark.

[0041] Optionally, the protective shell 7 is made of stainless steel. In this embodiment, stainless steel with good plasticity is used to facilitate the bending of the first limiting fold 72 and the second limiting fold 73, while improving rust prevention and heat dissipation performance. Heat dissipation vents can also be opened on the outer shell of the protective shell 7 to accelerate heat dissipation.

[0042] Optionally, the second limiting tab 73 is covered with insulating rubber to prevent the second limiting tab 73 from contacting the battery 6 and damaging the insulating protective layer of the battery 6.

[0043] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A bicycle handlebar left and right turn signal, characterized in that, include: The turn signal assembly (1) includes a mounting housing (11), a circuit board (12), a lamp assembly (13), a fixing cover (14), a fixing screw (15), a connecting wire (16), and a positioning block (17). The mounting housing (11) has an opening on one side. The circuit board (12), the lamp assembly (13), and the connecting wire (16) are installed inside the mounting housing (11). The circuit board (12) and the lamp assembly (13) are electrically connected. The circuit board (12) is electrically connected to the connecting wire (16). The fixing cover (14) is connected to the opening of the mounting housing (11). The positioning block (17) is fixedly connected to the end of the mounting housing (11) away from the fixing cover (14). The fastener (3) includes a fixing plate (31) and a wire groove (32). The fixing plate (31) has a positioning groove corresponding to the positioning block (17). One end of the positioning block (17) passes through the positioning groove. The fixing plate (31) also has a wire groove (32). One end of the fixing screw (15) passes through the fixing cover (14), the mounting shell (11), the fixing member (3) and the deformable piece (4) in sequence, and is threadedly connected to the driving block (5). The positioning block (17) is also used to limit the rotation of the deformable piece (4). The connecting wire (16) passes through the wire groove (32) of the mounting shell (11) and the fastener (3) and is electrically connected to the battery (6). The battery (6) is fitted with a protective shell (7) on the outside. The protective shell (7) is used to fix the battery (6) and is connected to the fixing plate (31).

2. A bicycle handlebar left and right turn signal according to claim 1, characterized in that, The fixing plate (31) is fixedly connected to a fixing ear (36) on the side away from the mounting shell (11). The protective shell (7) is provided with a clearance hole (71) at the position corresponding to the deformable piece (4). The protective shell (7) is provided with a first limiting folding ear (72) at the position corresponding to the fixing ear (36). The protective shell (7) is provided with a second limiting folding ear (73) at the position corresponding to one end of the battery (6). The protective shell (7) is connected to an end cap (8) at the end away from the fixing member (3). The end cap (8) abuts against the other end of the battery (6).

3. A bicycle handlebar left and right turn signal according to claim 1, characterized in that, The circuit board (12) also includes a charging circuit and a charging interface. The battery (6) is a rechargeable battery (6). The mounting shell (11) has a connection window at the position corresponding to the charging interface.

4. A left and right turn signal for bicycle handlebars according to claim 3, characterized in that, It also includes a protective plug (9) for insertion into the connection window.

5. A bicycle handlebar left and right turn signal according to claim 4, characterized in that, The fixing plate (31) is fixedly connected to the fixing post (37), and one end of the protective plug (9) is sleeved to the fixing post (37).

6. A bicycle handlebar left and right turn signal according to claim 1, characterized in that, It also includes a control unit (2), which includes a touch panel (21) and a magnetic component (22). The touch panel (21) is slidably connected to a fixing component (3). The circuit board (12) includes a sensor (121) for detecting changes in magnetic force.

7. A left and right turn signal for bicycle handlebars according to claim 6, characterized in that, The magnetic component (22) is a magnet, and the sensor (121) is a Hall sensor (121).

8. A left and right turn signal for bicycle handlebars according to claim 6, characterized in that, A slider (33) is fixedly connected to the fixed plate (31). A groove (23) is provided on the touch panel (21). The slider (33) is slidably connected to the groove (23). A second mounting groove (34) is provided on the fixed plate (31) along the sliding direction of the slider (33) in the groove (23). A first mounting groove (24) is provided on the touch panel (21) at the position corresponding to the second mounting groove (34). The first mounting groove (24) and the second mounting groove (34) are combined to form a receiving groove. A return spring (35) is installed in the receiving groove.

9. A left and right turn signal for bicycle handlebars according to claim 2, characterized in that, The protective shell (7) is made of stainless steel.

10. A left and right turn signal for bicycle handlebars according to claim 9, characterized in that, The second limiting lug (73) is covered with insulating rubber.

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