Bicycle seat tube and bicycle

Abstract

The utility model provides a bicycle seat tube and a bicycle, and relates to the technical field of bicycles, and the bicycle seat tube comprises a motor, a transmission assembly and an air spring; the transmission assembly comprises a cam and a pressing piece, the cam is sleeved with the pressing piece, and the axis of the pressing piece does not coincide with the axis of the cam. The motor is connected with the cam of the transmission assembly and used for driving the cam to rotate. The cam can rotate to a first position where the pressing piece presses the air spring, so that the air spring can be controlled to adjust the height of the bicycle seat tube; the second position does not press the gas spring, so that the height of the gas spring is fixed. According to the technical scheme, the height of the bicycle seat tube is adjusted through the motor, complex operation of installing the bicycle seat tube can be avoided, the problem that a connecting wire is prone to being damaged when wiring is conducted outside a bicycle frame is solved, the efficiency of installing the bicycle seat tube can be improved, and the stability of the bicycle seat tube can also be improved.

Description

Technical Field

[0001] This application belongs to the field of bicycle technology, and particularly relates to a bicycle seat post and a bicycle. Background Technology

[0002] As a mode of transportation, bicycles are increasingly being used for travel. During these trips, one may encounter various road conditions, such as uphill or downhill sections. Adjusting the bicycle saddle height can help prevent excessive strain on the body, especially for different road conditions.

[0003] In related technologies, the saddle height of a bicycle can be adjusted using a wired dropper mount. Specifically, the wired dropper mount can be connected to a switch located on the handlebars via a connecting cable, and the height of the wired dropper mount can be adjusted by using the switch, thereby completing the saddle height adjustment.

[0004] However, the connecting cable is usually routed from inside or outside the frame to connect the wired dropper mount and the switch located on the handlebars. Route the cable inside the frame, which is difficult and complex to manage, while route it outside the frame, which affects the vehicle's appearance and makes it more susceptible to damage. Utility Model Content

[0005] This application provides a bicycle seatpost and a bicycle, which solves the problems in the related art where the connection cable is difficult and complicated to run inside the frame, while the connection cable is affected by the aesthetics of the vehicle and is easily damaged when run outside the frame.

[0006] To achieve the above objectives, this application adopts the following technical solution:

[0007] In a first aspect, embodiments of this application provide a bicycle seatpost, the bicycle seatpost comprising: a motor, a transmission assembly, and a gas spring;

[0008] The transmission assembly includes a cam and a pressing member, wherein the pressing member is sleeved on the cam and the axis of the pressing member does not coincide with the axis of the cam.

[0009] The motor is connected to the cam of the transmission assembly, and the motor is used to drive the cam to rotate;

[0010] The cam can be rotated to a first position where the pressing member presses the gas spring, thereby allowing the gas spring to be controlled to adjust the height of the bicycle seat post; it can also be rotated to a second position where the gas spring is not pressed, thereby fixing the height of the gas spring.

[0011] Optionally, the bicycle seatpost further includes: a storage component, the motor being disposed within the storage component; the drive shaft of the motor passing through the spacer surface of the storage component and connected to the cam of the transmission assembly; a base being provided at one end of the cam near the spacer surface, the base extending toward the spacer surface with at least one limiting member, and multiple protrusions being provided on the outer side of the spacer surface; at least one limiting member and multiple protrusions restrict the rotation angle of the cam.

[0012] Optionally, the bicycle seatpost further includes a photoelectric switch connected to the motor for controlling the motor; the photoelectric switch is located outside the connecting surface of the storage component and extends towards the base of the cam; the base blocks the light received by the photoelectric switch, causing the photoelectric switch to conduct and control the motor to run; the base is provided with multiple switch holes, and when any one of the switch holes is rotated to the point where it is detected by the photoelectric switch, the photoelectric switch controls the motor to stop running.

[0013] Optionally, the base is provided with only one limiting member and has two switch holes that are symmetrically arranged on both sides of the limiting member. Two protrusions are provided on the outer side of the spacer surface. When the pressing member is rotated to the first position or the second position, one of the corresponding switch holes rotates to the position detected by the photoelectric switch, so that the photoelectric switch controls the motor to stop running, and the limiting member has not yet come into contact with the protrusions of the spacer surface.

[0014] Optionally, when the switch hole is rotated to the position detected by the photoelectric switch, the central angle between the limiting member and the corresponding protrusion on the base is between 15 degrees and 35 degrees.

[0015] Optionally, the gas spring includes a pin; when the cam is in the first position, external force can control the bicycle seat post height adjustment through the gas spring; when the cam is in the second position, the pin springs back to its original position, and the bicycle seat post height is fixed.

[0016] Optionally, the transmission assembly further includes: a first bearing and a second bearing; both the first bearing and the second bearing are sleeved on the cam, and the axes of the first bearing and the second bearing coincide with the axis of the cam; the pressing element is located between the first bearing and the second bearing.

[0017] Optionally, the bicycle seatpost further includes an external switch; the external switch is connected to the motor and is used to control the motor.

[0018] Optionally, the external switch can be a wired switch or a wireless switch.

[0019] Secondly, embodiments of this application provide a bicycle, including: a saddle and a bicycle seatpost as described in any of the first aspects, wherein the saddle is connected to the bicycle seatpost;

[0020] When the motor of the bicycle seat post drives the cam of the transmission component in the bicycle seat post to rotate, pressing the gas spring of the bicycle seat post, the external force can control the height adjustment of the bicycle seat post through the gas spring, and the height of the saddle changes together with the height of the bicycle seat post.

[0021] This application provides a bicycle seatpost embodiment. By incorporating a motor, a transmission assembly, and a gas spring within the seatpost, the transmission assembly includes a cam and a pressing member. The pressing member is fitted onto the cam, and its axis does not coincide with the cam's axis. Correspondingly, the motor is connected to the cam of the transmission assembly to drive its rotation. The cam can rotate to a first position where the pressing member presses the gas spring, thus allowing the gas spring to controllably adjust the seatpost height. It can also rotate to a second position where the gas spring is not pressed, thus fixing the gas spring's height. The technical solution provided by this application allows for adjusting the cam's rotation angle via the motor, positioning the pressing member on the cam in either the first or second position, thereby adjusting the bicycle seatpost height without the need for cable routing. This avoids the complexities of seatpost installation, prevents aesthetic impact on the vehicle, and solves the problem of easily damaged cables when routing cables externally to the frame. This effectively improves the efficiency and stability of bicycle seatpost installation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a bicycle with a seatpost according to an embodiment of this application;

[0023] Figure 2 This is a schematic diagram of the structure of a bicycle seatpost provided in an embodiment of this application;

[0024] Figure 3 This is a schematic diagram of the structure of a transmission component provided in an embodiment of this application;

[0025] Figure 4A This is a schematic diagram of the structure of a gas spring provided in an embodiment of this application;

[0026] Figure 4B This is a schematic diagram of another gas spring provided in an embodiment of this application;

[0027] Figure 5 This is a schematic diagram of another transmission component provided in an embodiment of this application;

[0028] Figure 6 This is a schematic diagram of another bicycle seat post provided in an embodiment of this application;

[0029] Figure 7 This is a schematic diagram of another bicycle seat post provided in an embodiment of this application;

[0030] Figure 8 This is a schematic diagram of the structure of a cam provided in an embodiment of this application;

[0031] Figure 9 This is a schematic diagram of another bicycle seat post provided in an embodiment of this application. Detailed Implementation

[0032] In the following description, specific details such as particular system structures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application can also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known bicycle structures and gas springs are omitted so as not to obscure the description of this application with unnecessary detail.

[0033] The terminology used in the following embodiments is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used in the specification and appended claims of this application, the singular expressions “a,” “the,” “the,” and “the” are intended to also include expressions such as “one or more,” unless the context clearly indicates otherwise.

[0034] As a mode of transportation, bicycles are increasingly being used for travel. During these trips, one may encounter various road conditions, such as uphill or downhill sections. Adjusting the bicycle saddle height can help prevent excessive strain on the body, especially for different road conditions.

[0035] In related technologies, the saddle height of a bicycle can be adjusted using a wired dropper mount. Specifically, the wired dropper mount can be connected to a switch located on the handlebars via a connecting cable, and the height of the wired dropper mount can be adjusted by using the switch, thereby completing the saddle height adjustment.

[0036] However, the connecting cable is usually routed from inside or outside the frame to connect the wired dropper mount and the switch located on the handlebars. Route the cable inside the frame, which is difficult and complex to manage, while route it outside the frame, which affects the vehicle's appearance and makes it more susceptible to damage.

[0037] Therefore, this application proposes a bicycle seatpost, which incorporates a motor, a transmission assembly, and a gas spring within the seatpost. The transmission assembly includes a cam and a pressing element, with the pressing element mounted on the cam, and the axis of the pressing element not coinciding with the axis of the cam. Correspondingly, the motor is connected to the cam of the transmission assembly to drive the cam to rotate. The cam can rotate to a first position where the pressing element presses the gas spring, thus allowing the gas spring to controllably adjust the height of the bicycle seatpost; it can also rotate to a second position where the gas spring is not pressed, thus fixing the height of the gas spring. The technical solution provided by this application allows for adjusting the angle of the cam rotation via the motor, positioning the pressing element on the cam in either the first or second position, thereby adjusting the height of the bicycle seatpost without the need for cable routing. This avoids the complex operation of installing bicycle seatposts, prevents impact on the vehicle's aesthetics, solves the problem of easily damaged connecting cables when routing cables externally to the frame, effectively improves the efficiency of bicycle seatpost installation, and enhances the stability of the bicycle seatpost.

[0038] See Figure 1 , Figure 1 This is a schematic diagram of a bicycle with a seat post according to an embodiment of this application. The bicycle may include a saddle 10 and a bicycle seat post 20.

[0039] The seat cushion 10 is connected to the bicycle seat post 20.

[0040] Specifically, during the process of adjusting the height of the saddle 10 via the bicycle seat post 20, the motor of the bicycle seat post 20 can be started by an external switch. The motor drives the cam of the transmission component in the bicycle seat post to rotate, causing the pressing part of the transmission component to press the gas spring in the bicycle seat post 20. This changes the state of the gas spring, which can raise or lower the height of the bicycle seat post 20. The height of the saddle 10 also changes along with the height of the bicycle seat post 20.

[0041] For example, when the pressing element of the transmission assembly presses the gas spring in the bicycle seat post 20, the gas spring generates a spring force, causing the bicycle seat post 20 to extend, thereby raising the height of the saddle 10. However, if the pressure on the saddle 10 is greater than the spring force generated by the gas spring, the pressure at the saddle 10 will compress the bicycle seat post 20, thereby lowering the height of the saddle 10. The pressure on the saddle 10 can be the pressure generated by the user's weight acting on the saddle 10 when riding the bicycle.

[0042] It should be noted that in practical applications, the above-mentioned bicycle seat post 20 can be applied to multiple devices such as two-wheeled bicycles, three-wheeled bicycles, two-wheeled electric vehicles, and three-wheeled electric vehicles. The above embodiment is only used as an example of application to bicycles. This application embodiment does not specifically limit the devices to which the above-mentioned bicycle seat post 20 is applied.

[0043] Moreover, the bicycle seat post 20 described above can be applied not only to the field of transportation vehicles, but also to the field of office chairs and hydraulic load-bearing equipment. This application embodiment does not specifically limit the field of application of the bicycle seat post 20.

[0044] The following is a detailed introduction to bicycle seatposts.

[0045] Figure 2 This is a schematic diagram of a bicycle seatpost provided in an embodiment of this application. It is provided as an example and not as a limitation. See also Figure 2 The bicycle seatpost may include: a motor 210, a transmission assembly 220, and a gas spring 230.

[0046] Among them, such as Figure 3 As shown, Figure 3 This is a schematic diagram of a transmission assembly provided in an embodiment of this application. The transmission assembly 220 may include a cam 221 and a pressing member 222. Moreover, the pressing member 222 can be sleeved on the cam 221, and the axis of the pressing member 222 does not coincide with the axis of the cam 221. During the rotation of the cam 221, the pressing member 222 can contact the gas spring 230, thereby pressing the gas spring 230.

[0047] Furthermore, the cam 221 can be rotated to a first position where the pressing member 222 presses the gas spring 230, thereby allowing the height of the gas spring 230 to be adjusted in a controlled manner; it can also be rotated to a second position where the gas spring 230 is not pressed, thereby fixing the height of the gas spring 230.

[0048] For example, the pressing member 222 can be circular, elliptical, or other structures with smooth edges, so that the gas spring 230 can be pressed and reset smoothly. The embodiments of this application do not specifically limit the structural shape of the pressing member 222.

[0049] In addition, the motor 210 can be connected to the cam 221 of the transmission assembly 220, so that the cam 221 can be rotated by the operation of the motor 210.

[0050] Specifically, when the cam 221 rotates, the pressing member 222 can rotate from the second position to the first position along with the cam 221, thereby pressing the gas spring 230. This allows the gas spring 230 to control the height adjustment of the bicycle seat post during the time it is pressed by the pressing member 222. The second position can be any position where the gas spring 230 is not pressed. For example, the central angle between the second position and the gas spring 230 on the cam 221 can be 90 degrees. This embodiment does not specifically limit the second position.

[0051] It should be noted that the embodiment of this application does not show the frame body of the bicycle seat post, but the gas spring 230 can be located inside the frame body, and the motor 210 and transmission assembly 220 are located at one end of the frame body and above the gas spring 230.

[0052] Correspondingly, when the motor 210 drives the transmission component 220 to press the gas spring 230, the pressing component 222 punches a hole in the gas valve of the gas spring 230, and the tube frame body can move upward based on the elastic force generated by the gas spring 230, thereby raising the height of the bicycle seat post.

[0053] Moreover, such as Figure 4A and Figure 4B As shown, Figure 4A This is a schematic diagram of the structure of a gas spring provided in an embodiment of this application. Figure 4B This is a schematic diagram of another gas spring provided in an embodiment of this application. The gas spring 230 may include: a push pin 231.

[0054] The ejector pin 231 can be located on top of the gas spring 230 and contact the pressing member 222 in the rotating cam 221, so that it can be squeezed by the pressing member 222 to press the gas spring 230.

[0055] Correspondingly, such as Figure 4A As shown, when the pressing member 222 rotates, it can come into contact with the ejector pin 231 and press the ejector pin 231. Furthermore, when the pressing member 222 presses the ejector pin 231, the state of the gas spring 230 changes, which controls the position of the bicycle seat post frame body to change, thereby adjusting the height of the bicycle seat post.

[0056] After the height adjustment is completed, under the user's control, the motor can drive the pressing part 222 to rotate in the opposite direction. The center of the pressing part 222 gradually moves away from the ejector pin 231, and the ejector pin 231 gradually returns to its original position under internal pressure. Figure 4B The position shown. At this point, the height of the gas spring 230 is fixed, and the pressing member 222 rotates to the second position.

[0057] In addition, such as Figure 5 As shown, Figure 5 This is a schematic diagram of another transmission component provided in an embodiment of the present application. The transmission component 220 may further include: a first bearing 223 and a second bearing 224.

[0058] The first bearing 223 and the second bearing 224 can both be mounted on the cam 221, and the axes of the first bearing 223 and the second bearing 224 coincide with the axis of the cam 221, so that the motor 210 and the cam 221 can maintain a coaxial rotation state, thereby effectively counteracting the lateral force generated by the ejector pin 231 of the gas spring 230.

[0059] Moreover, such as Figure 5 As shown, the pressing member 222 can be located between the first bearing 223 and the second bearing 224. For example, the first bearing 223 and the second bearing 224 can be respectively sleeved on both ends of the cam 221, so that the pressing member 222 is located between the first bearing 223 and the second bearing 224. This can further stabilize the cam 221 when it rotates, reduce the pressure on the cam 221 and the pressing member 222, and thus improve the stability of the cam 221 in the bicycle seat post.

[0060] It should be noted that in practical applications, bicycle seatposts may also include an external switch.

[0061] The external switch can be connected to the motor 210 to control the motor 210. When the external switch is turned on, the motor 210 can run, thereby adjusting the height of the bicycle seat post.

[0062] Furthermore, the external switch can be a wired switch or a wireless switch. When the external switch is a wired switch, it can be placed near the motor 210; when the external switch is a wireless switch (such as a Bluetooth switch or an infrared switch), it can be placed near the bicycle handlebars for convenient user control of the motor 210. For example, the external switch can be placed under the bicycle seat or near the brake pedal of the bicycle handlebars. This embodiment of the application does not specifically limit the location of the external switch.

[0063] The basic structure and working principle of bicycle seatposts have been introduced above. However, in practical applications, bicycle seatposts need to be improved according to the actual usage of users. The following is an introduction to the improved bicycle seatposts.

[0064] like Figure 6 As shown, Figure 6 This is a schematic diagram of another bicycle seatpost structure provided in an embodiment of this application. The bicycle seatpost may also include a storage member 240, which can house the motor 210 and protect the motor 210.

[0065] The drive shaft of the motor 210 can pass through the spacer surface 241 of the storage component 240 and connect with the cam 221 of the transmission assembly 220, so that the cam 221 can be driven to rotate by the drive shaft when the motor 210 is running.

[0066] Furthermore, during the operation of the motor 210, in order to prevent the motor 210 from continuing to rotate at a large angle after reaching the first or second position, the rotation angle of the cam 221 can be limited.

[0067] Optionally, a base 221a may be provided at one end of the cam 221 near the spacer surface 241, and the base 221a may extend toward the spacer surface 241 to form at least one limiting member 221b. Correspondingly, a plurality of protrusions 242 may be provided on the outer side of the spacer surface 241, and each protrusion 242 may be located on the rotation path of the limiting member 221b to prevent the limiting member 221b from continuing to rotate. Thus, at least one limiting member 221b and a plurality of protrusions 242 can limit the rotation angle of the cam 221.

[0068] When the cam 221 rotates, at least one protrusion 242 can block at least one limiting member 221b, thereby limiting the cam 221 from continuing to rotate and thus limiting the angle of rotation of the cam 221 to prevent the cam 221 from rotating too far.

[0069] Optional, such as Figure 7 As shown, Figure 7 This is a schematic diagram of another bicycle seat post provided in an embodiment of this application. The bicycle seat post may also include a photoelectric switch 250.

[0070] The photoelectric switch 250 is connected to the motor 210 and is used to control the motor 210. For example, when the photoelectric switch 250 is turned on, that is, when the photoelectric switch 250 emits light 250a (as shown in the image), the light 250a emitted by the photoelectric switch 250 is activated. Figure 9 When the signal is received by itself, a conduction signal is generated, which is used to control the motor 210 to stop running.

[0071] Furthermore, the photoelectric switch 250 can be located outside the connecting surface of the housing 240 and extend towards the base 221a of the cam 221, so that the light-receiving components of the photoelectric switch 250 (such as a photosensitive sensor) are located on the side of the spacer surface 241 and close to the base 221a, thereby blocking the light received by the photoelectric switch 250 through the base 221a, so that the photoelectric switch 250 is turned off.

[0072] In addition, such as Figure 8 As shown, Figure 8This is a schematic diagram of a cam structure provided in an embodiment of this application. To prevent the motor 210 from being overloaded and damaged when blocked by the limiting member 221b, multiple switch holes 221c can be provided on the base 221a. When any switch hole 221c rotates with the cam 221 to the area where the photoelectric switch 250 is located, the light emitted by the photoelectric switch 250 can pass through the switch hole 221c and be received by itself, thereby detecting the switch hole 221c. At this time, the photoelectric switch 250 switches from the cut-off state to the on state, generating a conduction signal and controlling the motor 210 to stop running, avoiding the motor 210 from being overloaded and damaged, and improving the stability of the bicycle seat post.

[0073] For example, the timing of when the motor 210 stops can be adjusted by adjusting the position between the pressing member 222 and the switch hole 221c, so that when the pressing member 222 fully presses the gas spring 230 (pressing member 222 in the first position) or disengages (pressing member 222 in the second position), the corresponding switch hole 221c is just detected by the photoelectric switch 250 (see reference). Figure 9 At this time, the motor 210 is controlled by the conduction signal issued by the switch hole 221c to stop running.

[0074] Furthermore, such as Figure 9 As shown, Figure 9 This is a schematic diagram of another bicycle seat post provided in an embodiment of this application. The base 221a may be provided with only one limiting member 221b, and two switch holes 221c that are symmetrically arranged and located on both sides of the limiting member are provided. Two protrusions 242 may be provided on the outer side of the spacer surface 241.

[0075] For each switch hole 221c, the range of the central angle between the switch hole 221c and the limiting member 221b on the base 221a can be set according to the timing of the pressing member 222 pressing the gas spring 230. Specifically, when the pressing member 222 fully presses the gas spring 230 (pressing member 222 is in the first position) or disengages (pressing member 222 is in the second position), the switch hole 221c rotates to the area where the photoelectric switch 250 is located, causing the photoelectric switch 250 to switch to the conducting state, thereby controlling the motor 210 to stop running. Moreover, at the moment when the motor 210 stops running, the limiting member 221b has not yet come into contact with the protrusion 242 of the spacer surface 241, thereby avoiding the collision between the limiting member 221b and the protrusion 242 of the storage member 240, which can reduce the noise generated when adjusting the height of the bicycle seat post and also improve the service life of the bicycle seat post.

[0076] For example, see Figure 9When the switch hole 221c rotates to the area where the photoelectric switch 250 is located, that is, when it is detected by the photoelectric switch 250, the distance between the limiting member 221b and the protrusion 242, that is, the distance between the side of the limiting member 221b near the protrusion 242 and the side of the protrusion 242 near the limiting member 221b, can be in the range of 15 degrees to 35 degrees on the base 221a. That is, the limiting member 221b will only come into contact with the protrusion 242 when the cam 221 continues to rotate at least 15 degrees to 35 degrees in the direction of rotation of the motor 210.

[0077] It should also be noted that the above embodiment uses motor 210 as an example to illustrate the method of adjusting the height of the bicycle seat post. In other embodiments, a specific mechanical structure can be used to rotate the cam 221 manually.

[0078] In summary, this application proposes a bicycle seatpost. By incorporating a motor, a transmission assembly, and a gas spring within the seatpost, the transmission assembly includes a cam and a pressing element. The pressing element is fitted onto the cam, and its axis does not coincide with the cam's axis. Correspondingly, the motor is connected to the cam of the transmission assembly to drive its rotation. The cam can rotate to a first position where the pressing element presses the gas spring, allowing the gas spring to be controlled and adjusted in height. It can also rotate to a second position where the gas spring is not pressed, thus fixing its height. The technical solution provided by this application allows for adjusting the cam's rotation angle via the motor, positioning the pressing element on the cam in either the first or second position, thereby adjusting the bicycle seatpost height without the need for cable routing. This avoids the complexities of seatpost installation, prevents aesthetic impact on the vehicle, and solves the problem of easily damaged cables when routing cables externally to the frame. This effectively improves the efficiency and stability of bicycle seatpost installation.

[0079] Furthermore, by mounting the bearing on the cam, the motor and the cam can rotate coaxially, which can also effectively counteract the lateral force generated by the pin of the gas spring, thereby improving the reliability of the bicycle seat post.

[0080] Furthermore, by mounting the first bearing and the second bearing on both ends of the cam respectively, and placing the pressing element between the first bearing and the second bearing, the cam can be further stabilized by the first bearing and the second bearing when the cam rotates, reducing the pressure on the cam and the pressing element, thereby improving the stability of the cam in the bicycle seat post.

[0081] In addition, by using the protrusion to block the limiting component, the cam can be restricted from continuing to rotate, preventing the cam from rotating too far and improving the reliability of the bicycle seat post.

[0082] It should be noted that by switching the photoelectric switch to the on state based on the received light, the motor can be controlled to stop running, avoiding overload damage to the motor when it is in the limit position, and improving the stability of the bicycle seat post.

[0083] Similarly, by adjusting the position of the switch hole, the corresponding limiting member, and the pressing member, it is possible to prevent the limiting member from colliding with the protrusion, reduce the noise generated when adjusting the height of the bicycle seat post, and also improve the service life of the bicycle seat post.

[0084] It should be understood that the sequence number of each step in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0085] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0086] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0087] In the embodiments provided in this application, it should be understood that the disclosed apparatus / devices and methods can be implemented in other ways. For example, the apparatus / device embodiments described above are merely illustrative. For instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0088] It should be understood that, when used in this application specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or a collection thereof.

[0089] It should also be understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0090] As used in this application specification and the appended claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if detected [the described condition or event]" may be interpreted, depending on the context, as meaning "once determined," "in response to determination," "once detected [the described condition or event]," or "in response to detection [the described condition or event]."

[0091] Furthermore, in the description of this application and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0092] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0093] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A bicycle seat tube, characterized in that, The bicycle seatpost includes: a motor, a transmission assembly, and a gas spring; The transmission assembly includes a cam and a pressing member, wherein the pressing member is sleeved on the cam and the axis of the pressing member does not coincide with the axis of the cam. The motor is connected to the cam of the transmission assembly, and the motor is used to drive the cam to rotate; The cam can be rotated to a first position where the pressing member presses the gas spring, thereby allowing the gas spring to be controlled to adjust the height of the bicycle seat post; it can also be rotated to a second position where the gas spring is not pressed, thereby fixing the height of the gas spring.

2. Bicycle seat tube according to claim 1, characterized in that The bicycle seatpost also includes a storage component, and the motor is disposed within the storage component; The drive shaft of the motor passes through the spacer surface of the housing and is connected to the cam of the transmission assembly; The cam is provided with a base at one end near the spacer surface, and at least one limiting member extends from the base toward the spacer surface. Multiple protrusions are provided on the outer side of the spacer surface. At least one of the limiting members and the plurality of the protrusions limit the angle of rotation of the cam.

3. Bicycle seat tube according to claim 2, characterized in that The bicycle seatpost also includes a photoelectric switch, which is connected to the motor and used to control the motor; The photoelectric switch is located outside the connecting surface of the storage component and extends towards the base of the cam. The base blocks the light received by the photoelectric switch, so that the photoelectric switch is turned on to control the operation of the motor. The base is provided with multiple switch holes. When any of the switch holes is rotated to the point where it is detected by the photoelectric switch, the photoelectric switch controls the motor to stop running.

4. Bicycle seat tube according to claim 3, characterized in that The base has only one limiting member and two switch holes that are symmetrically arranged on both sides of the limiting member. Two protrusions are provided on the outer side of the spacer surface. When the pressing member rotates to the first position or the second position, the corresponding switch hole rotates to the position detected by the photoelectric switch, so that the photoelectric switch controls the motor to stop running, and the limiting member has not yet come into contact with the protrusion of the spacer surface.

5. The bicycle seat tube of claim 4, wherein, When the switch hole is rotated to the position detected by the photoelectric switch, the distance between the limiting member and the corresponding protrusion on the base is in the range of 15 degrees to 35 degrees from the center angle.

6. The bicycle seat tube of claim 1, wherein, The gas spring includes: a ejector pin; When the cam is in the first position, external force can control the bicycle seat post height adjustment through the gas spring. When the cam is in the second position, the ejector pin springs back to its original position, and the bicycle seat post height is fixed.

7. The bicycle seat post according to any one of claims 1 to 6, characterized in that, The transmission assembly further includes: a first bearing and a second bearing; Both the first bearing and the second bearing are mounted on the cam, and the axes of the first bearing and the second bearing coincide with the axis of the cam; the pressing element is located between the first bearing and the second bearing.

8. Bicycle seat tube according to any of claims 1 to 6, characterized in that The bicycle seatpost also includes an external switch; the external switch is connected to the motor and is used to control the motor.

9. Bicycle seat tube according to claim 8, characterized in that The external switch can be a wired switch or a wireless switch.

10. A bicycle characterized in that, include: A saddle and a bicycle seatpost as described in any one of claims 1 to 9, wherein the saddle is connected to the bicycle seatpost; When the motor of the bicycle seat post drives the cam of the transmission component in the bicycle seat post to rotate, pressing the gas spring of the bicycle seat post, the external force can control the height adjustment of the bicycle seat post through the gas spring, and the height of the saddle changes together with the height of the bicycle seat post.

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