Rear armrest and electric bicycle

By introducing a movable, connectable main body and detection components into the rear handlebar of an electric bicycle, precise electronic detection of passengers is achieved, solving the problem of limited seating space under traditional physical protection methods and improving the practicality and aesthetics of electric bicycles.

CN121469769APending Publication Date: 2026-02-06HEFEI SONGGUO ZHIZAO INTELLIGENT CO LTD
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Patent Information

Application Number
CN202511909099.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-17
Publication Date
2026-02-06

AI Technical Summary

Technical Problem

Existing electric bicycle rear handlebars are impractical and aesthetically unappealing when preventing multiple riders from using them, and traditional physical protection methods limit passenger space.

Method used

The rear armrest body is designed with movable connections, and is combined with detection components such as contact switches or pressure sensors. Electronic detection replaces physical protection to achieve accurate passenger identification, and the armrest is securely connected to the frame through connecting components.

Benefits of technology

It effectively expands the passenger space, enhances the user experience and aesthetics, and ensures riding safety, making it highly practical and safe.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a rear armrest and an electric bicycle. The rear armrest comprises a main body, a connecting assembly and a detection assembly. The main body comprises a mounting part, and the connecting assembly is used for connecting the mounting part with a frame of the electric bicycle, so that the main body is movably connected with the frame. The detection assembly is arranged between the main body and the frame and used for detecting whether the main body carries people or not. The rear armrest and the electric bicycle have the advantages of being high in practicability and safety.
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Description

Technical Field

[0001] This application relates to the field of electric bicycle technology, and in particular to a rear handlebar and an electric bicycle. Background Technology

[0002] The rear handlebar is an important component of electric bicycles, and its structural design is related to riding safety, especially in preventing multiple riders from riding together.

[0003] Currently, most mainstream rear grab handles designed to prevent multiple riders from sitting on them employ physical protection methods. This involves optimizing the physical shape of the grab handle and shortening the distance between it and the saddle to limit the number of additional riders. However, this close proximity between the grab handle and the saddle restricts passenger space, reducing the rider's experience and resulting in an aesthetically unappealing design that fails to meet users' demands for both practicality and aesthetics in electric bicycles. Summary of the Invention

[0004] Therefore, it is necessary to address the issues of low practicality and poor aesthetics of the rear handlebars of electric bicycles by providing a new type of rear handlebar and electric bicycle.

[0005] This invention provides a rear armrest, comprising:

[0006] The main body includes a mounting section;

[0007] A connecting assembly for connecting the mounting portion and the frame, so that the body is movably connected to the frame;

[0008] A detection component is disposed between the main body and the frame, and the detection component is used to detect whether the main body is carrying a person.

[0009] In one embodiment, the main body further includes a first handrail portion and a second handrail portion, the first handrail portion and the second handrail portion are connected, the mounting portion is disposed between the first handrail portion and the second handrail portion, one end of the mounting portion is connected to the first handrail portion, and the other end of the mounting portion is connected to the second handrail portion.

[0010] In one embodiment, the detection component includes a contact switch disposed between the body and the frame; when the body carries a person, the body is pressed towards the frame to trigger the contact switch.

[0011] In one embodiment, the detection component includes a pressure sensor disposed between the body and the frame; when the body carries a person, the body bears pressure toward the frame, so that the pressure borne by the body is transmitted to the pressure sensor.

[0012] In one embodiment, the connecting assembly includes a first fastener and an elastic member. The mounting portion has a first mounting hole, the first fastener is movably inserted through the first mounting hole, and the first fastener is connected to the frame so that the body and the first fastener are movably connected. One end of the elastic member is connected to the body, and the other end of the elastic member is connected to the frame.

[0013] In one embodiment, the first mounting hole includes at least two holes, which are spaced apart along the length of the mounting portion. The first fastener includes at least two fasteners, which are correspondingly inserted into the first mounting holes. The detection component is located at the middle position along the length of the mounting portion.

[0014] In one embodiment, the rear armrest further includes a protective component, the protective component including a first protective member and a second protective member, the first protective member being connected to the side of the first armrest portion away from the second armrest portion, and the second protective member being connected to the side of the second armrest portion away from the first armrest portion.

[0015] In one embodiment, the protective component further includes a second fastener and a third fastener. The first protective member has a second mounting hole, the second fastener passes through the second mounting hole, and the second fastener is connected to the first handrail portion so that the first protective member is connected to the first handrail portion. The second protective member has a third mounting hole, the third fastener passes through the third mounting hole, and the third fastener is connected to the second handrail portion so that the second protective member is connected to the second handrail portion.

[0016] In one embodiment, the first armrest portion has a first groove on the side near the frame, and a first reinforcing rib is provided in the first groove; the second armrest portion has a second groove on the side near the frame, and a second reinforcing rib is provided in the second groove.

[0017] The present invention also provides an electric bicycle, including a frame, a controller and a rear handlebar as described above, wherein the rear handlebar is mounted on the frame and the detection component of the rear handlebar is electrically connected to the controller.

[0018] The aforementioned rear grab handle and electric bicycle feature a mounting section on the main body of the grab handle. This mounting section connects to the frame of the electric bicycle via a connecting component, achieving a secure assembly between the main body and the frame. Furthermore, a detection component is installed between the main body and the frame. This component accurately electronically detects whether the main body is carrying a person, replacing the traditional physical protection method of the rear grab handle. This not only accurately identifies multi-person riding scenarios but also effectively expands the riding space, enhances the user experience and aesthetics of the electric bicycle, and ensures riding safety. It boasts advantages of high practicality and high safety. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the installation of the rear armrest as described in an embodiment of this application.

[0020] Figure 2 This is a rear view structural diagram of the rear armrest described in an embodiment of this application.

[0021] Figure 3 This is a front view structural diagram of the rear armrest described in an embodiment of this application.

[0022] Figure 4 This is a rear view structural diagram of the rear armrest according to another embodiment of this application.

[0023] Icon labels:

[0024] 100. Main body; 110. Mounting part; 111. First mounting hole; 1111. First sub-mounting hole; 1112. Second sub-mounting hole; 1113. Third sub-mounting hole; 120. First handrail part; 121. First groove; 130. Second handrail part; 131. Second groove;

[0025] 200. Connecting component; 210. First fastener; 211. First sub-fastener; 212. Second sub-fastener; 213. Third sub-fastener; 220. Elastic element;

[0026] 300. Detection component; 310. Contact switch; 320. Transmission cable;

[0027] 400, Protective component; 410, First protective element; 411, Second mounting hole; 420, Second protective element; 421, Third mounting hole; 430, Second fastener; 440, Third fastener;

[0028] 10. Rear grab handle; 20. Frame. Detailed Implementation

[0029] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0030] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0031] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0035] See Figure 1 and Figure 2 The diagram shows a schematic representation of a rear grab handle 10 according to an embodiment of this application. The rear grab handle 10 is used for mounting on an electric bicycle. Specifically, the rear grab handle 10 includes a main body 100, a connecting component 200, and a detection component 300.

[0036] The main body 100 includes a mounting part 110 and a connecting assembly 200 for connecting the mounting part 110 and the frame 20 of the electric bicycle so that the main body 100 is movably connected to the frame 20.

[0037] The detection component 300 is disposed between the main body 100 and the frame 20. The detection component 300 is used to detect whether the main body 100 is carrying personnel.

[0038] In one embodiment, the detection component 300 is electrically connected to the controller of the electric bicycle. If a multi-person riding scenario is detected in the rear handlebar 10, the detection component 300 outputs a signal to the controller of the electric bicycle, causing the controller to implement measures to prevent multi-person riding, thereby dissuading or preventing multiple people from riding the same electric bicycle and improving the safety of using the electric bicycle.

[0039] The rear grab handle 10 described in this embodiment achieves a stable assembly between the main body 100 and the frame 20 by providing a mounting part 110 on the main body 100. The mounting part 110 is connected to the frame 20 of the electric bicycle via a connecting component 200. Furthermore, a detection component 300 is provided between the main body 100 and the frame 20 to accurately electronically detect whether the main body 100 is carrying a person. The detection methods of the detection component 300 include, but are not limited to, detecting the load-bearing pressure on the main body 100 or detecting the obstruction status of the main body 100.

[0040] The rear grab handle 10 described in this application embodiment, by setting a detection component 300 between the main body 100 and the frame, allows the electronic detection of the detection component 300 to replace the traditional physical protection of the rear grab handle 10. This not only accurately identifies multi-person riding scenarios, but also effectively expands the riding space of the electric bicycle, improves the user experience and aesthetics of the electric bicycle, and ensures the riding safety of the electric bicycle. It has the advantages of high practicality and high safety.

[0041] Combination Figure 3 This diagram shows a front view of the rear armrest 10 according to one embodiment of the present application. In some embodiments, the main body 100 further includes a first armrest portion 120 and a second armrest portion 130, which are connected. A mounting portion 110 is disposed between the first armrest portion 120 and the second armrest portion 130, with one end of the mounting portion 110 connected to the first armrest portion 120 and the other end connected to the second armrest portion 130. When the main body 100 is mounted on the frame 20, the first armrest portion 120 and the second armrest portion 130 are arranged around the rear of the frame 20. Specifically, the rear armrest 10 has a symmetrical structure, and the first armrest portion 120 and the second armrest portion 130 are connected to form a U-shaped structure.

[0042] In this embodiment, the main body 100 is set as a U-shaped structure formed by connecting the first armrest part 120 and the second armrest part 130, and the first armrest part 120 and the second armrest part 130 are connected at both ends of the mounting part 110 respectively. This ensures the stability and force balance of the overall structure of the rear armrest 10, optimizes the riding space, and improves the comfort of use.

[0043] In an optional embodiment, such as Figure 4 As shown, the detection component 300 includes a contact switch 310, which is disposed between the main body 100 and the frame 20. When the main body 100 carries a person, the main body 100 is squeezed and moved toward the frame 20, so that the main body 100 triggers the contact switch 310.

[0044] In this embodiment, by placing the contact switch 310 between the main body 100 and the frame 20, when the rear handlebar 10 carries a person, the main body 100 is pushed towards the frame 20 by the person, thereby triggering the contact switch 310 between the main body 100 and the frame 20. This enables accurate detection of the load-bearing status of the rear handlebar 10, replacing the traditional physical protection method that relies on reducing the distance between the rear handlebar 10 and the saddle. This optimizes the riding space of the electric bicycle, improves the comfort of use, and the electronic triggering method has higher reliability and stability.

[0045] In another alternative embodiment, the detection component 300 includes a pressure sensor disposed between the body 100 and the frame 20; when the body 100 carries a person, the body 100 bears pressure toward the frame 20, so that the pressure borne by the body 100 is transmitted to the pressure sensor.

[0046] In this embodiment, a pressure sensor is positioned between the main body 100 and the frame 20. When the main body 100 bears the pressure of a person carrying it towards the frame 20, the main body 100 transmits this pressure to the pressure sensor. Therefore, the pressure sensor can directly sense the pressure changes generated when the main body 100 carries a person, achieving accurate detection of the load-bearing state of the main body 100. This replaces the traditional physical protection method that relies on reducing the distance between the rear handlebar 10 and the saddle, optimizing the riding space of the electric bicycle, improving user comfort, and the electronic triggering method offers higher reliability and stability.

[0047] In an optional embodiment, such as Figures 1 to 3 As shown, the connecting assembly 200 includes a first fastener 210 and an elastic member 220. The mounting portion 110 has a first mounting hole 111. The first fastener 210 is movably inserted through the first mounting hole 111 and connected to the frame 20, so that the main body 100 and the first fastener 210 are movably connected. One end of the elastic member 220 is connected to the main body 100, and the other end of the elastic member 220 is connected to the frame 20. Alternatively, one end of the elastic member 220 is connected to the main body 100, and the other end of the elastic member 220 is connected to the first fastener 210.

[0048] In this embodiment, the first fastener 210 movably passes through the first mounting hole 111 and connects to the frame 20, achieving assembly of the main body 100 and the frame 20. However, the main body 100 can move on the first fastener 210, and the elastic element 220 connects the main body 100 and the frame 20, providing the main body 100 with an elastic force away from the frame 20. The elastic element 220 not only ensures the buffering effect and structural adaptability of the connection between the main body 100 and the frame 20 through its elastic properties, but also triggers the detection component through the deformation of the elastic element 220 when the main body 100 carries personnel. The above connection method is simple, reliable, and convenient to assemble, improving installation efficiency and having the advantages of good connection stability and high assembly efficiency.

[0049] In one exemplary embodiment, the elastic element 220 is a compression spring, and the first fastener 210 passes through the compression spring.

[0050] In one exemplary embodiment, the first fastener 210 is a bolt, and the frame 20 has a threaded countersunk hole. The bolt passes through the first mounting hole 111 and connects with the threaded countersunk hole on the frame 20. In another embodiment, the first fastener 210 may also be a bolt and a nut. The frame 20 has a connecting through hole, and the bolt passes through the first mounting hole 111 and the connecting through hole of the frame 20 and connects with the nut.

[0051] In an optional embodiment, such as Figure 1 and Figure 2 As shown, the first mounting hole 111 includes at least two, and the at least two first mounting holes 111 are spaced apart along the length direction of the mounting part 110. The first fastener 210 includes at least two, and the first fastener 210 is correspondingly inserted into the first mounting hole 111. The detection component 300 is located at the middle position of the corresponding mounting part 110 along its length direction.

[0052] This embodiment effectively distributes the connection force by arranging at least two first mounting holes 111 at intervals along the length of the mounting portion 110, and connecting the frame 20 with a corresponding number of first fasteners 210 one by one. This improves the stability and force balance of the assembly between the main body 100 and the frame 20, and enhances the connection stability between the main body 100 and the frame 20. Simultaneously, placing the detection component 300 at the middle position along the length of the mounting portion 110 ensures the accuracy and reliability of detecting the load-bearing state of the main body 100, further enhancing the detection effect of the detection component 300 in multi-person riding scenarios and ensuring riding safety.

[0053] In one exemplary embodiment, the open end of the main body 100 of the U-shaped structure is the mounting end, and the end away from the opening is the tail end. For example... Figure 2 and Figure 3As shown, the first mounting hole 111 includes a first sub-mounting hole 1111, a second sub-mounting hole 1112, and a third sub-mounting hole 1113. The first fastener 210 includes a first sub-fastener 211 connecting the first sub-mounting hole 1111, a second sub-fastener 212 connecting the second sub-mounting hole 1112, and a third sub-fastener 213 connecting the third sub-mounting hole 1113. The first sub-mounting hole is located at the center of the width direction of the rear armrest 10. The second sub-mounting hole 1112 and the third sub-mounting hole 1113 are located on the side of the first sub-mounting hole 1111 near the mounting end, so that the first sub-mounting hole 1111, the second sub-mounting hole 1112, and the third sub-mounting hole 1113 are connected. The connecting lines form an isosceles triangle structure. The detection component 300 is located on the side of the first sub-mounting hole 1111 near the tail end. The first sub-fastener 211 passes through the first sub-mounting hole 1111 and then through the compression spring. The second sub-fastener 212 passes through the compression spring and then through the second sub-mounting hole 1112. The third sub-fastener 213 passes through the compression spring and then through the third sub-mounting hole 1113. This allows the main body 100 to move away from the detection component 300 under the support of the compression spring when it is not under force. When the main body 100 is under force, it resists the elastic force of the compression spring and triggers the detection component 300, thereby avoiding the detection component 300 being falsely triggered, reducing the false trigger rate, and improving the detection accuracy.

[0054] In an optional embodiment, such as Figure 1 and Figure 2 As shown, the rear armrest 10 also includes a protective component 400, which includes a first protective member 410 and a second protective member 420. The first protective member 410 is connected to the side of the first armrest portion 120 away from the second armrest portion 130, and the second protective member 420 is connected to the side of the second armrest portion 130 away from the first armrest portion 120.

[0055] In this embodiment, by connecting the first protective member 410 and the second protective member 420 to the two sides of the U-shaped structure formed by the first armrest 120 and the second armrest 130 respectively, the two outer sides of the rear armrest 10 are effectively protected, preventing the user from directly bumping into the main body 100 when holding or approaching it, or preventing the two sides of the main body 100 from bumping into other hard objects, thus improving the safety and comfort of use.

[0056] In an optional embodiment, such as Figure 4As shown, the protective assembly 400 further includes a second fastener 430 and a third fastener 440. The first protective member 410 has a second mounting hole 411, and the second fastener 430 passes through the second mounting hole 411 and is connected to the first handrail portion 120, so that the first protective member 410 is connected to the first handrail portion 120. The second protective member 420 has a third mounting hole 421, and the third fastener 440 passes through the third mounting hole 421 and is connected to the second handrail portion 130, so that the second protective member 420 is connected to the second handrail portion 130.

[0057] In this embodiment, the first protective component 410 and the first handrail 120 are stably assembled by the second fastener 430 passing through the second mounting hole 411 and connecting to the first handrail 120. Similarly, the second protective component 420 and the second handrail 130 are stably assembled by the third fastener 440 passing through the third mounting hole 421 and connecting to the second handrail 130. The above connection method is simple, reliable, and convenient to assemble, improving installation efficiency. It has the advantages of good connection stability and high assembly efficiency.

[0058] In one exemplary embodiment, the second fastener 430 is a bolt, and the first handrail portion 120 has a threaded countersunk hole. The bolt passes through the second mounting hole 411 and connects with the threaded countersunk hole on the first handrail portion 120. Similarly, the third fastener 440 is a bolt, and the second handrail portion 130 has a threaded countersunk hole. The bolt passes through the third mounting hole 421 and connects with the threaded countersunk hole on the second handrail portion 130.

[0059] In an optional embodiment, such as Figure 2 As shown, the first armrest portion 120 has a first groove 121 on the side near the frame 20, and a first reinforcing rib is provided in the first groove 121. The second armrest portion 130 has a second groove 131 on the side near the frame 20, and a second reinforcing rib is provided in the second groove 131.

[0060] In this embodiment, the first armrest portion 120 and the second armrest portion 130 are formed by a stamping process, which forms a first groove 121 and a second groove 131 in the main body 100. A first reinforcing rib is provided in the first groove 121 and a second reinforcing rib is provided in the second groove 131. The first groove 121 and the second groove 131 effectively reduce the weight of the main body 100, realizing the lightweight design of the product. At the same time, the first reinforcing rib and the second reinforcing rib precisely compensate for the structural strength loss that the first groove 121 and the second groove 131 may cause, ensuring the load-bearing stability and durability of the main body 100.

[0061] To ensure the structural strength of the rear grab handle 10, it is currently commonly made of steel or aluminum. However, steel or aluminum materials result in a heavier rear grab handle 10, affecting the overall lightweight performance of the electric bicycle. In an optional embodiment, the main body 100 is made of magnesium alloy, a new type of lightweight material that can effectively reduce the overall weight of the rear grab handle 10 and improve the overall lightweight effect of the electric bicycle.

[0062] On the other hand, this application also provides an electric bicycle, such as Figure 1 As shown, the vehicle includes a frame 20, a controller, and a rear grab handle 10 as described in any of the above embodiments. The rear grab handle 10 is mounted on the frame 20, and the detection component 300 of the rear grab handle 10 is electrically connected to the controller. Exemplarily, the detection component 300 and the controller are electrically connected via a transmission wire 320.

[0063] The electric bicycle described in this application embodiment has a rear handlebar 10 installed at the rear of the frame 20. The rear handlebar 10 has a detection component 300 set between the main body 100 and the frame 20. The electronic detection of the detection component 300 replaces the traditional physical protection of the rear handlebar 10. It can not only accurately identify multi-person riding scenarios and transmit the detection signal to the electric bicycle controller to restrict use, but also effectively expand the riding space of the electric bicycle, improve the user experience and aesthetics of the electric bicycle, and ensure the riding safety of the electric bicycle. It has the advantages of high practicality and high safety.

[0064] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0065] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A rear armrest (10), characterized in that, include: The main body (100) includes a mounting part (110). A connecting assembly (200) for connecting the mounting part (110) and the frame (20) so that the body (100) is movably connected to the frame (20); A detection component (300) is disposed between the main body (100) and the frame (20), and the detection component (300) is used to detect whether the main body (100) is carrying personnel.

2. The rear armrest (10) according to claim 1, characterized in that: The main body (100) further includes a first handrail portion (120) and a second handrail portion (130), the first handrail portion (120) and the second handrail portion (130) are connected, the mounting portion (110) is disposed between the first handrail portion (120) and the second handrail portion (130), one end of the mounting portion (110) is connected to the first handrail portion (120), and the other end of the mounting portion (110) is connected to the second handrail portion (130).

3. The rear armrest (10) according to claim 1, characterized in that: The detection component (300) includes a contact switch (310) disposed between the body (100) and the frame (20); when the body (100) carries a person, the body (100) is squeezed toward the frame (20) to trigger the contact switch (310).

4. The rear armrest (10) according to claim 1, characterized in that: The detection component (300) includes a pressure sensor disposed between the body (100) and the frame (20); when the body (100) carries a person, the body (100) bears pressure toward the frame (20) so that the pressure carried by the body (100) is transmitted to the pressure sensor.

5. The rear armrest (10) according to any one of claims 1-4, characterized in that: The connecting assembly (200) includes a first fastener (210) and an elastic member (220). The mounting part (110) is provided with a first mounting hole (111). The first fastener (210) is movably inserted through the first mounting hole (111) and connected to the frame (20) so that the main body (100) and the first fastener (210) are movably connected. One end of the elastic member (220) is connected to the main body (100), and the other end of the elastic member (220) is connected to the frame (20).

6. The rear armrest (10) according to claim 5, characterized in that: The first mounting hole (111) includes at least two, and the at least two first mounting holes (111) are spaced apart along the length direction of the mounting part (110). The first fastener (210) includes at least two, and the first fastener (210) is inserted through the first mounting hole (111) in a corresponding manner. The detection component (300) is located at the middle position corresponding to the length direction of the mounting part (110).

7. The rear armrest (10) according to claim 2, characterized in that: The rear armrest (10) further includes a protective component (400), which includes a first protective member (410) and a second protective member (420). The first protective member (410) is connected to the side of the first armrest portion (120) away from the second armrest portion (130), and the second protective member (420) is connected to the side of the second armrest portion (130) away from the first armrest portion (120).

8. The rear armrest (10) according to claim 7, characterized in that: The protective component (400) further includes a second fastener (430) and a third fastener (440). The first protective member (410) is provided with a second mounting hole (411). The second fastener (430) passes through the second mounting hole (411) and is connected to the first handrail portion (120) so that the first protective member (410) is connected to the first handrail portion (120). The second protective member (420) is provided with a third mounting hole (421). The third fastener (440) passes through the third mounting hole (421) and is connected to the second handrail portion (130) so that the second protective member (420) is connected to the second handrail portion (130).

9. The rear armrest (10) according to claim 2, characterized in that: The first armrest (120) has a first groove (121) on the side near the frame (20), and a first reinforcing rib is provided in the first groove (121); the second armrest (130) has a second groove (131) on the side near the frame (20), and a second reinforcing rib is provided in the second groove (131).

10. An electric bicycle, characterized in that: The vehicle includes a frame (20), a controller, and a rear armrest (10) as described in any one of claims 1-9, the rear armrest (10) being mounted on the frame (20), and the detection component (300) of the rear armrest (10) being electrically connected to the controller.