Improved structure of lifting seat post drive module

Abstract

This utility model relates to an improved structure of a lifting seat tube drive module, which mainly includes a seat tube and a seat rod passing through the seat tube. When adjusting the height of the seat rod, the motor of the drive module is used to rotate the track column, and the push sleeve moves linearly through the guide rod through the linear track and the through hole, thereby pushing the valve nozzle of the valve rod to produce linear displacement, so as to switch the oil circuit connection state in a valve seat. In this way, the seat rod can be raised or lowered relative to the seat tube to achieve the effect of adjusting the height.

Description

Technical Field

[0001] This utility model relates to an improved structure of a lifting seat tube drive module, which is mainly applied in the field of bicycle technology. Background Technology

[0002] Bicycles are a widely used mode of transportation. They are powered by human pedaling and do not require electricity or gasoline, making them highly environmentally friendly and ideal for use as a general means of transportation or a recreational activity.

[0003] A typical bicycle saddle is mounted on the rear of the frame using a single tube. To accommodate different riders, a height adjustment device is attached to the seat tube to adjust the saddle height. This device is located between the seat tube and the seat post, and uses linear displacement to change the relative position of the two, thus achieving height adjustment. These height adjustment devices can be broadly categorized into "mechanical," "pneumatic / hydraulic," and "hybrid" types, depending on the power source used to actuate them. "Mechanical" devices utilize the characteristics of certain mechanisms to adjust the relative height between the seat tube and seat post. "Pneumatic / hydraulic" devices use pneumatic or hydraulic components, or both, to adjust the relative height between the seat tube and seat post. "Hybrid" devices combine the functions of both "mechanical" and "pneumatic / hydraulic" devices to adjust the relative height between the seat tube and seat post.

[0004] All height adjustment devices, whether mechanical, pneumatic / hydraulic, or hybrid, include a braking assembly. This assembly activates the height adjustment device, making it adjustable. Once the desired height is reached, the control switch is closed to lock the device in place. These existing braking assemblies utilize cables, hoses, or electrical circuits to control the valve stem's displacement, thereby opening and closing the hydraulic circuit within the piston seat to further control the rise and fall of the seat rod relative to the seat tube. However, in this technology, manufacturers face difficulties configuring cables, hoses, or electrical circuits within the limited space of the vehicle frame, potentially even hindering the installation of other components, thus limiting their practicality.

[0005] Furthermore, in another existing technology, adjusting the seat post height primarily involves wirelessly controlling a motor to start. A control lever, driven by the motor, pushes a valve stem to produce a linear displacement, switching the oil passage connection within a valve seat. When adjusting the seat height, the motor's drive shaft extends, pushing the control lever upwards via a cam block. This causes the control lever to oscillate, pushing the valve stem upwards to switch the oil passage connection within the valve seat, forcing it to open. The rider can then adjust the seat height according to their needs through the linear displacement of the seat post relative to the seat tube. However, while this existing mechanism solves the cable issue, pushing the valve stem requires a certain amount of force. The cam block only contacts and pushes the valve stem from one side, bearing this force. This uneven force can easily cause the cam block to swerve, making it difficult to reliably push the valve stem after prolonged use, rendering the overall height adjustment device inoperable. Further improvements are needed. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide an improved structure for a lifting seat post drive module, which can control the height of the bicycle seat post, achieve smooth operation and high stability of adjustment, and overcome the shortcomings of the prior art.

[0007] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: an improved structure for a lifting seat tube drive module, which has a seat tube and a seat rod that can be axially moved through the seat tube, and further includes a control valve group and a drive module. The control valve group has a valve seat and a valve rod. One end of the valve rod can be axially moved through the valve seat, and the bottom end of the valve rod has a valve nozzle. The drive module can push the valve nozzle to switch the oil circuit connection state in the valve seat, so that the seat rod rises or falls relative to the seat tube. The drive module has a push sleeve and a limit sleeve. The valve includes a retaining sleeve, a track post, at least one guide rod, and a motor. The track post has at least one arc-shaped track into which the guide rod can extend. The retaining sleeve is fitted outside the track post and has at least one linear track into which the guide rod can extend. The pushing sleeve is fitted outside the retaining sleeve and is located below the valve stem. The pushing sleeve has at least one through hole into which the guide rod can extend. The motor can drive the track post to rotate, and when the guide rod moves along the arc-shaped track, it passes through the linear track of the retaining sleeve and the through hole, causing the pushing sleeve to move linearly, thereby pushing the valve nozzle.

[0008] Preferably, it further includes a signal transmitting device having a start switch and a signal transmitter connected to the start switch; and a signal receiving device having a circuit board and a signal receiver, the circuit board being electrically connected to the motor, and the signal receiver being disposed on the circuit board and electrically connected to the signal transmitter.

[0009] Preferably, the signal transmitting device and the signal receiving device can be connected wirelessly or via a wired connection.

[0010] Preferably, the motor has a drive shaft connected to the track column.

[0011] Preferably, the drive module has two guide rods, and the track column has two arc-shaped tracks, both of which are arranged around the track column with the same inclination.

[0012] Preferably, the push sleeve further has at least one through groove, which communicates with the through hole, so that the through hole communicates with the outside of the push sleeve through the through groove.

[0013] Preferably, the push sleeve further has a plurality of mutually assembled pieces, and each of the plurality of pieces has the perforation.

[0014] Preferably, the push sleeve has at least one through groove and a support piece, the support piece being assembled at the through groove, and the through hole is formed by the mating of the support piece and the through groove.

[0015] Preferably, the drive module further comprises a sleeve and a seat that are assembled together. The sleeve is fitted over the push sleeve and has a toothed hole for locking the valve stem in place, while the seat is for accommodating the motor.

[0016] Preferably, the sleeve has an assembly that can be assembled onto the seat tube.

[0017] The head tube of the frame, the front wheel assembly linked to the handlebar assembly, and the rear wheel assembly located on the rear wheel support of the frame.

[0018] The beneficial effects of this utility model are as follows: Through the aforementioned technical means, a start switch is used to control the signal transmitter to send a signal to the signal receiver. Then, the circuit board controls the motor to start according to the signal received by the signal receiver. When the motor starts, the motor drive shaft will start to rotate, and at the same time drive the track column to rotate. When the guide rod moves along the arc track, the push sleeve moves linearly through the linear track of the limiting sleeve and the through hole, thereby pushing the valve upward and forcing the oil passage in the valve seat to be open. At this time, the rider can further adjust the height of the seat according to his own needs through the linear displacement of the seat post relative to the seat tube, which improves its practicality and effectively increases its added value and economic benefits.

[0019] The present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the lifting seat tube mechanism in this work.

[0021] Figure 2 This is a three-dimensional structural view of the first embodiment of the driver module in this work.

[0022] Figure 3 This is an exploded three-dimensional view of the first embodiment of the driving module in this work.

[0023] Figure 4 This is a schematic diagram of the structure of the first embodiment of the driver module in this work.

[0024] Figure 5 This is an exploded three-dimensional view of the second embodiment of the driving module in this work.

[0025] Figure 6 This is a schematic diagram of the second embodiment of the driver module in this work.

[0026] Figure 7 This is a three-dimensional structural view of the third embodiment of the driver module in this work.

[0027] Figure 8 This is an exploded three-dimensional view of the third embodiment of the driving module in this work.

[0028] Figure 9 This is a structural diagram of the third embodiment of the driver module in this work. Detailed Implementation

[0029] like Figure 1 and Figure 2 As shown, the present invention features an improved structure for the lifting seat post drive module. It includes a seat post 10 and a seat rod 20 axially movable within the seat post 10. The top of the seat rod 20 is for mounting a pad (not shown), and the bottom of the seat rod 20 is inserted into the seat post 10 from the top and can move vertically along the axial direction of the seat post 20. It also includes a control valve assembly 30 and a drive module 40. The control valve assembly 30 has a valve seat 31 and a valve rod 32. The valve seat 31 is fixed within the seat rod 20; the valve rod 32 is located within the seat post 10, with its top end passing through the valve seat 31, and its bottom end has a valve nozzle 33, which can switch the oil circuit state within the valve seat 31. The drive module 40 can push the valve nozzle 33 of the valve rod 32 to switch the oil circuit state within the valve seat 31, causing the seat rod 20 to rise or fall relative to the seat post 10.

[0030] The key point of this case is: Please also refer to the following... Figure 3 and Figure 4As shown, the drive module 40 has a push sleeve 41, a limiting sleeve 42, a track post 43, at least one guide rod 44, and a motor 45. The track post 43 has at least one arc-shaped track 431 into which the guide rod 44 can extend. The limiting sleeve 42 is sleeved on the track post 43 and has at least one linear track 421 into which the guide rod 44 can extend. The push sleeve 41 is sleeved on the limiting sleeve 42 and is located below the valve nozzle 33. The push sleeve 41 has at least one through hole 411 into which the guide rod 44 can extend. The motor 45 can drive the track post 43 to rotate, and when the guide rod 44 moves along the arc-shaped track 431, the push sleeve 41 moves linearly through the linear track 421 and the through hole 411 of the limiting sleeve 42, thereby pushing the valve nozzle 33.

[0031] The drive module has two guide rods 44, and the track column has two arc-shaped tracks 431. The two arc-shaped tracks 431 are arranged around the track column 43 with the same inclination. The highest point of one arc-shaped track 431 is connected to the lowest point of the other arc-shaped track 431 by a vertical surface 433, and the lowest point of one arc-shaped track 431 is connected to the highest point of the other arc-shaped track 431 by another vertical surface 433, so that the two guide rods 44 can move simultaneously at the two arc-shaped tracks 431 respectively.

[0032] When the drive module 40 is assembled with the sleeve 46 and the seat 47, one end of each of the two guide rods 44 has a larger head 441, which can be locked into the groove 432 of the arc track 431. The smaller rod 442 of the other end of the guide rod 44 is exposed outside the arc track 431. The limiting sleeve 42 is then fitted over the track post 43, and the rod 442 of the guide rod 44 extends into the linear track 421, which extends along the extension direction of the valve stem 32. The motor 45 is pre-placed inside the seat 47, and the limiting sleeve 42 is then locked onto the seat 47. At the same time, the drive shaft 451 of the motor 45 is connected to the track post 43.

[0033] Next, the push sleeve 41 is fitted over the limiting sleeve 42, while the guide rod 44 extends into the through hole 411. In the first embodiment shown in the figure, the push sleeve 41 further has at least one through groove 412, which communicates with the through hole 411, so that the through hole 411 is connected to the outside of the push sleeve 41 through the through groove 412, and the rod portion 442 of the guide rod 44 is positioned at the through hole 411 from the outside of the push sleeve 41 along the through groove 412. Finally, the sleeve body 46 is fitted over the push sleeve 41 and assembled and fixed with the seat body 47. The sleeve body 46 has a toothed hole 461, which allows the valve stem 32 to extend into the locking position and be positioned above the push sleeve 41. The sleeve body 46 also has an assembly part 462 for assembly with the seat tube 10.

[0034] This invention further includes a signal transmitting device and a signal receiving device. The signal transmitting device (not shown) has a start switch and a signal transmitter connected to the start switch, with the start switch optimally mounted on the handlebar. The signal receiving device (not shown) is installed inside the housing 46 or the base 47, and has a circuit board (not shown) and a signal receiver (not shown). The circuit board is electrically connected to the motor 45, and the signal receiver is located on the circuit board and electrically connected to the signal transmitter (not shown). The signal transmitting device and the signal receiving device can be connected wirelessly or wiredly, meaning the motor 45 can be controlled wirelessly or wiredly.

[0035] When adjusting the seat height, first press down the start switch to control the signal transmitter to send a signal to the signal receiver. Then, the circuit board will control the motor 45 to start according to the signal received by the signal receiver. When the motor 45 starts, the drive shaft 451 of the motor 45 will start to rotate, and at the same time drive the track post 43 to rotate, so that the guide rod 44 moves along the arc track 431. At the same time, through the linear track 421 of the limiting sleeve 42 and the through hole 411, the push sleeve 41 forms a linear movement, which pushes the valve 33 upward, forcing the oil passage in the valve seat 31 to be open. At this time, the rider can further adjust the seat height according to his own needs by the linear displacement of the seat post 20 relative to the seat tube 10.

[0036] Furthermore, such as Figure 5 and Figure 6 As shown in the second embodiment, the push sleeve 41 further has a plurality of mutually assembled pieces 413, and each of the plurality of pieces 413 has the through hole 411; or, as shown Figure 7 , Figure 8 and Figure 9As shown in the third embodiment, the push sleeve 41 has at least one through groove 412 and a support piece 415. The support piece 415 is assembled at the through groove 412, and the through hole 411 is formed by the docking of the support piece 415 and the through groove 412. The through hole 411 formed by the above-mentioned various embodiments can also allow the rod portion 442 of the guide rod 44 to extend into it, and can all move linearly up and down by the drive of the guide rod 44.

Claims

1. An improved structure for a lifting seat post drive module, comprising a seat post and a seat rod axially movable within the seat post, further comprising a control valve assembly and a drive module, the control valve assembly comprising a valve seat and a valve rod, the valve rod having one end axially movable within the valve seat, and the bottom end of the valve rod having a valve nozzle, the drive module being able to push the valve nozzle to switch the oil circuit connection state within the valve seat, causing the seat rod to rise or fall relative to the seat post; characterized in that: The drive module has a push sleeve, a limiting sleeve, a track post, at least one guide rod, and a motor. The track post has at least one arc-shaped track into which the guide rod can extend. The limiting sleeve is fitted outside the track post and has at least one linear track into which the guide rod can extend. The push sleeve is fitted outside the limiting sleeve and is located below the valve stem. The push sleeve has at least one through hole into which the guide rod can extend. The motor can drive the track post to rotate, and when the guide rod moves along the arc-shaped track, it passes through the linear track of the limiting sleeve and the through hole, causing the push sleeve to move linearly, thereby pushing the valve nozzle.

2. The lift seat tube drive module improvement structure of claim 1, wherein: It further includes a signal transmitting device having a start switch and a signal transmitter connected to the start switch; and a signal receiving device having a circuit board and a signal receiver, the circuit board being electrically connected to the motor, and the signal receiver being disposed on the circuit board and electrically connected to the signal transmitter.

3. The lift seat tube drive module improvement structure of claim 2, wherein: The signal transmitting device and the signal receiving device can be connected wirelessly or via wired means.

4. The lift seat tube drive module improvement structure according to any one of claims 1 to 3, characterized in that: The motor has a drive shaft that is connected to the track post.

5. The lift seat tube drive module improvement structure of claim 4, wherein: The drive module has two guide rods, and the track column has two arc-shaped tracks, both of which are arranged around the track column with the same inclination.

6. The lift seat tube drive module improvement structure of claim 4, wherein: The push sleeve further has at least one through groove that communicates with the through hole, allowing the through hole to connect to the outside of the push sleeve through the through groove.

7. The lift seat tube drive module improvement structure of claim 4, wherein: The push sleeve further has a plurality of interconnected plates, and each of the plurality of plates has the perforation.

8. The lift seat tube drive module improvement structure of claim 4, wherein: The push sleeve has at least one through groove and a support piece, the support piece being assembled at the through groove, and the through hole is formed by the mating of the support piece and the through groove.

9. The lift seat tube drive module improvement structure of claim 4, wherein: The drive module further includes a sleeve and a seat that are assembled together. The sleeve is fitted over the push sleeve and has a toothed hole for locking the valve stem in place, while the seat is for accommodating the motor.

10. The lift seat tube drive module improvement structure of claim 9, wherein: The sleeve has assemblies that can be assembled onto the seat tube.

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