Electronic lifting seat tube of bicycle

Abstract

The utility model relates to a bicycle electronic lifting seat tube which comprises an outer tube, an inner tube, an air pressure rod and a base, the inner tube is telescopically arranged in the outer tube, the upper end of the inner tube is connected with the base, the air pressure rod is contained in the inner tube, the end, provided with an air valve guide rod, of the air pressure rod is connected with the base, and the air valve guide rod is arranged in the air pressure rod. The other end of the connecting pipe is connected with the outer pipe; the base is used for installing a seat cushion, a motor, a cam, an ejector pin and a circuit board are arranged in the base, the motor is in transmission connection with the cam, the cam is arranged in the base to rotate, the ejector pin is movably arranged in the base, one end of the ejector pin abuts against the cam, the other end of the ejector pin abuts against an air valve guide rod of the air pressure rod, and the circuit board is arranged in the base. And the circuit board is used for controlling the motor.

Description

Technical Field

[0001] The present application belongs to the technical field of bicycle accessories and relates to an electronic lifting seat post for a bicycle. Background Art

[0002] In the prior art, the height of the bicycle seat is adjusted by raising and lowering the seat tube. A common way to raise and lower the seat tube is to use a gas pressure rod structure. The principle is similar to the way of adjusting the height of an office chair. That is, when the user wants to lower or raise the height of the seat, he must operate the air valve guide rod of the gas pressure rod and then use the weight of his body to press down the seat to lower it, or the buttocks must leave the seat to raise it.

[0003] However, when the bicycle is moving, if the user wants to adjust the height of the seat, the riding must be stopped, which causes inconvenience in use. Therefore, the traditional method is to install a remote control on the handlebar of the bicycle, use a pull wire to connect the lifting seat tube, and when the remote control is operated, the air valve guide rod of the air pressure rod is pressed by pulling the wire, so as to adjust the lifting during the movement. The routing of the lifting seat tube is difficult, and the wire is threaded through the inside of the frame, which is difficult and complicated. Routing the wire outside the frame will affect the appearance, and it is easy to be damaged and the wire will fail after long-term use. Utility Model Content

[0004] The present application aims to provide a bicycle electronic lifting seat post, which can realize the function of electric lifting.

[0005] The present application is implemented through the following technical solutions.

[0006] The technical solution provides a bicycle electronic lifting seat tube, comprising an outer tube, an inner tube, a gas pressure rod and a base, wherein the inner tube is telescopically arranged in the outer tube, the upper end of the inner tube is connected to the base, the gas pressure rod is accommodated in the inner tube, one end of the gas pressure rod having a valve guide rod is connected to the base, and the other end thereof is connected to the outer tube;

[0007] The base is used to install the seat cushion. A motor, a cam, a ejector pin and a circuit board are arranged inside the base. The motor is connected to the cam in a transmission manner. The cam is arranged in the base for rotation. The ejector pin is movably arranged in the base, one end of which is against the cam and the other end is against the valve guide rod of the gas pressure rod. The circuit board is used to control the motor.

[0008] The electronic lifting seat tube of the bicycle of the present technical solution drives the cam to rotate through the motor, and the cam presses the ejector pin downward to push the air valve guide rod of the air pressure rod, thereby opening the air valve of the air pressure rod to realize the lifting and lowering of the inner tube and adjust the height of the bicycle seat cushion. The motor is electronically controlled through the circuit board.

[0009] In one or more embodiments, a wireless communication module is integrated on the circuit board, and the wireless communication module is used to receive wireless control signals to achieve wireless control of the motor. In this way, the bicycle electronic lifter can be controlled wirelessly, which is easy to install and avoids the cumbersome and difficult wiring.

[0010] In one or more embodiments, the wireless communication module is at least one of a Bluetooth module and a radio frequency 2.4G wireless module.

[0011] In one or more embodiments, a battery is further provided on the base, and the battery is detachably connected to the base, and the battery is electrically connected to the circuit board.

[0012] In one or more embodiments, the battery is electrically connected to the circuit board using a contact connector or a plug-in connector.

[0013] In one or more embodiments, a fixing frame is provided inside the base, the motor is provided on the fixing frame, the cam is connected to the rotating shaft of the motor, and the shaft of the cam is also provided on the fixing frame via a bearing.

[0014] In one or more embodiments, the base is provided with a guide hole, the guide hole is extended along the length direction of the air valve guide rod of the air pressure rod, and the ejector pin is provided with a guide portion, and the guide portion slides in cooperation with the guide hole.

[0015] In one or more embodiments, the upper end of the ejector pin is further provided with a head protruding along the radial direction thereof, and the head abuts against the cam.

[0016] In one or more embodiments, a limiter is further included in the base, wherein the limiter is connected to the cam and is used to limit the maximum rotation stroke of the cam.

[0017] In one or more embodiments, a sensor is further included in the base, and the sensor is used to detect and locate the rotation position of the cam.

[0018] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0020] Figure 1Schematic diagram of the structure of an electronic lifting seat post for a bicycle shown in one embodiment of the present application.

[0021] Figure 2 It is a schematic diagram of the exploded structure of an electronic dropper seat post for a bicycle shown in one embodiment of the present application.

[0022] Figure 3 It is a first cross-sectional structural schematic diagram of a bicycle electronic dropper seat post shown in one embodiment of the present application.

[0023] Figure 4 1 is a second cross-sectional structural schematic diagram of an electronic dropper seat post for a bicycle shown in one embodiment of the present application.

[0024] Figure 5 It is a schematic structural diagram of a limiting component of an electronic lifting seat post for a bicycle shown in an embodiment of the present application. Description of the drawings:

[0026] 11-outer tube; 12-inner tube; 13-gas pressure rod; 131-valve guide rod; 14-base; 141-guide hole; 15-motor; 151-kit; 16-cam; 17-thimble; 171-guide part; 172-head; 18-circuit board; 181-switch key; 19-battery; 20-fixing frame; 201-second limiting part; 21-bearing; 22-limiting member; 221-first limiting part; 222-notch; 23-sensor. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in some embodiments of the present application to clearly and completely describe the technical solutions in some embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0028] The technical solution of the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0029] like Figures 1 to 5 As shown in the figure, this embodiment is an electronic lifting seat post for a bicycle, comprising an outer tube 11, an inner tube 12, a gas pressure rod 13 and a base 14, wherein the inner tube 12 is telescopically arranged in the outer tube 11, the upper end of the inner tube 12 is connected to the base 14 by a threaded manner, the gas pressure rod 13 is accommodated in the inner tube 12, one end of the gas pressure rod 13 having an air valve guide rod 131 is connected to the base 14 by a threaded manner, and the other end thereof is connected to the outer tube 11 by a threaded manner;

[0030] The base 14 is used to install the seat cushion. The internal cavity of the base 14 is provided with a motor 15, a cam 16, a pin 17 and a circuit board 18. The motor 15 is transmission-connected with the cam 16. The cam 16 is arranged in the base 14 and rotates. The pin 17 is movably arranged in the base 14, one end of which is against the cam 16, and the other end is against the valve guide rod 131 of the gas pressure rod 13. The circuit board 18 is used to control the motor 15, and the circuit board 18 is electrically connected to the motor 15.

[0031] In this way, the cam 16 can be driven to rotate by the motor 15, and the cam 16 presses the ejector pin 17 downward to push the air valve guide rod 131 of the air pressure rod 13, thereby opening the air valve of the air pressure rod 13 to achieve the lifting and lowering of the inner tube 12 and adjust the height of the bicycle seat. The motor 15 is electronically controlled by the circuit board 18.

[0032] In this embodiment, a wireless communication module is integrated on the circuit board 18, and the wireless communication module is used to receive wireless control signals to achieve wireless control of the motor 15. In this way, the bicycle electronic lifting seat post can be controlled wirelessly, which is easy to install and avoids the cumbersome and difficult wiring.

[0033] Exemplarily, the wireless communication module is a Bluetooth module or a radio frequency 2.4G wireless module. In an application example, a wireless controller can be installed on the handlebar of a bicycle, and the wireless controller is wirelessly connected to the wireless communication module on the circuit board 18, and the bicycle electronic lifting seat tube is controlled by operating the buttons on the wireless controller. In addition, a switch key 181 is also provided on the circuit board 18, and the bicycle electronic lifting seat tube is turned on or off by pressing the switch key.

[0034] In this embodiment, the base 14 is also provided with a battery 19, which is detachably connected to the base 14 and electrically connected to the circuit board 18, so that the battery 19 can be removably charged. The battery 19 and the circuit board 18 are electrically connected using a contact connector or a plug-in connector. For example, an elastic contact pin is provided on the circuit board 18 or the base 14, and a conductive contact is provided on the battery 19. After the battery 19 is installed, the elastic contact pin is electrically connected to the conductive contact, and the battery 19 supplies power to the motor 15 and the circuit board 18.

[0035] In this embodiment, a fixing frame 20 is provided inside the base 14, the motor 15 is fixed on the fixing frame 20 through a kit 151, the circuit board 18 is installed on the fixing frame 20, the cam 16 is connected to the rotating shaft of the motor 15, and the shaft portion of the cam 16 away from the motor 15 is also provided on the fixing frame 20 through a bearing 21, and the shaft portion on the other side of the cam 16 is connected to a limiting member 22. The cam 16, the motor 15 and the circuit board 18 are first installed on the fixing frame 20 and assembled into a whole, and then the fixing frame 20 is installed inside the base 14, which facilitates production and assembly and increases the stability of the rotation of the cam 16.

[0036] In this embodiment, the base 14 is provided with a guide hole 141, which is extended along the length direction of the air valve guide rod 131 of the gas pressure rod 13. The ejector pin 17 is provided with a guide portion 171, and the guide portion 171 slides in the guide hole 141. The side surface of the guide portion 171 is in sliding contact with the inner surface of the guide hole 141, thereby increasing the stability of the movement of the ejector pin 17.

[0037] In this embodiment, the upper end of the ejector pin 17 is further provided with a head 172 protruding in the radial direction thereof, and the head 172 abuts against the cam 16. The upper end surface of the head 172 is larger than the movement track of the cam 16. The head 172 increases the upper end surface, which can prevent the cam 16 from tilting the ejector pin 17 during the rotation process, thereby blocking the movement of the cam 16.

[0038] In this embodiment, the bicycle electronic lifter seat post further includes a limiter 22 disposed inside the base 14, the limiter 22 is connected to the cam 16, and the limiter 22 is used to limit the maximum rotation stroke of the cam 16. Indicatively, the limiter 22 is a disc structure, the limiter 22 is coaxially arranged with the cam 16, a raised first limiter 221 is provided on the limiter 22, and a raised second limiter 201 is provided on the fixing frame 20, and the second limiter 201 blocks the first limiter 221, thereby limiting the maximum rotation stroke of the cam 16.

[0039] In this embodiment, the bicycle electronic lifter seat post further includes a sensor 23 disposed inside the base 14, the sensor 23 is electrically connected to the circuit board 18, for example, the sensor 23 is integrated on the circuit board 18, and the sensor 23 is used to detect the rotation position of the positioning cam 16. Exemplarily, the above-mentioned limiter 22 also has a sensing function of triggering the sensor 23, wherein the sensor 23 is a through-beam photoelectric sensor, and a notch 222 is provided on the limiter 22, and the limiter 22 can block the light of the through-beam photoelectric sensor. When the limiter 22 rotates with the convex rotation to the position of the notch 222 and the through-beam photoelectric sensor, the sensor 23 is triggered to stop the rotation of the cam 16.

[0040] It should be noted that the gas pressure rod 13 in this embodiment belongs to the prior art in the field and is a standard component, and its principle and structure will not be described in detail here.

[0041] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A bicycle electronic dropper seat post, characterized in that: The invention comprises an outer tube, an inner tube, a gas pressure rod and a base, wherein the inner tube is telescopically arranged in the outer tube, the upper end of the inner tube is connected to the base, the gas pressure rod is accommodated in the inner tube, one end of the gas pressure rod having a valve guide rod is connected to the base, and the other end thereof is connected to the outer tube; The base is used to install the seat cushion. A motor, a cam, a ejector pin and a circuit board are arranged inside the base. The motor is connected to the cam in a transmission manner. The cam is arranged in the base for rotation. The ejector pin is movably arranged in the base, one end of which is against the cam and the other end is against the valve guide rod of the gas pressure rod. The circuit board is used to control the motor.

2. The bicycle electronic dropper seat post according to claim 1, characterized in that: A wireless communication module is integrated on the circuit board, and the wireless communication module is used to receive wireless control signals to achieve wireless control of the motor.

3. The bicycle electronic dropper seat post according to claim 2, characterized in that: The wireless communication module is at least one of a Bluetooth module and a radio frequency 2.4G wireless module.

4. The bicycle electronic dropper seat post according to claim 1, characterized in that: A battery is also provided on the base, and the battery is detachably connected to the base, and the battery is electrically connected to the circuit board.

5. The bicycle electronic dropper seat post according to claim 4, characterized in that: The battery and the circuit board are electrically connected by using a contact type connector or a plug-in type connector.

6. The bicycle electronic dropper seat post according to claim 1, characterized in that: A fixing frame is arranged inside the base, the motor is arranged on the fixing frame, the cam is connected with the rotating shaft of the motor, and the shaft of the cam is also arranged on the fixing frame through a bearing.

7. The bicycle electronic dropper seat post according to claim 1, characterized in that: The base is provided with a guide hole, and the guide hole is extended along the length direction of the air valve guide rod of the air pressure rod. The ejector pin is provided with a guide part, and the guide part is matched with the guide hole to slide.

8. The bicycle electronic dropper seat post according to claim 7, characterized in that: The upper end of the ejector pin is also provided with a head protruding along the radial direction thereof, and the head abuts against the cam.

9. The bicycle electronic dropper seat post according to claim 1, characterized in that: It also includes a limiting member arranged inside the base, the limiting member is connected to the cam, and the limiting member is used to limit the maximum rotation stroke of the cam.

10. The bicycle electronic dropper seat post according to claim 1, characterized in that: The invention also comprises a sensor arranged inside the base, and the sensor is used for detecting and locating the rotation position of the cam.

Images