Telescopic rod structure and bicycle

Abstract

The utility model provides a telescopic rod structure and a bicycle. The telescopic rod structure comprises a lower pipe, an upper pipe, a supporting pipe, a control module and a clamping pipe. The control module comprises a valve pipe, at least one abutting piece and a control valve. The valve pipe comprises at least one containing hole, the abutting piece is movably located in the containing hole, and the control valve comprises at least one concave part. The clamping pipe is linked with the upper pipe and comprises at least two clamping parts and a clamping tail plug. The clamping parts are arranged along the axis of the upper pipe and used for being selectively clamped by the abutting piece. The clamping tail plug is clamped to the clamping pipe and comprises a through hole for the valve pipe to penetrate out. When the abutting piece is clamped to the clamping part, the upper pipe is prevented from moving relative to the lower pipe, and when the control valve moves along the axis relative to the valve pipe to enable the concave part to be aligned with the abutting piece, the abutting piece enters the concave part to be away from the clamping part, and the upper pipe is allowed to move relative to the lower pipe. Therefore, the structural strength is improved.

Description

Technical Field

[0001] The utility model relates to a telescopic rod structure and a bicycle, and in particular to a telescopic rod structure with adjustable height and a bicycle. Background Art

[0002] Generally speaking, a bicycle is equipped with a telescopic rod to adjust the height of, for example, a seat or a handlebar. Existing telescopic rods may include an upper tube and a lower tube, and the length of the telescopic rod can be changed by adjusting the distance between the upper tube and the lower tube. Existing telescopic rods may include a height adjustment mechanism, which may include a tube body, wherein air, oil, or both oil and gas are contained inside the tube body, and a piston and a valve are provided to change the relative position of the piston in the tube body, thereby changing the relative height of the upper tube and the lower tube. When the user wants to lower the height of the telescopic rod, the valve is opened and force is applied to press down the upper tube so that the upper tube descends relative to the lower tube; conversely, when the user wants to raise the height of the telescopic rod, the valve is opened to allow the upper tube to rise relative to the lower tube, and then the user limits the upper tube with hands or body parts so that the upper tube rises to a predetermined height.

[0003] However, this height adjustment mechanism cannot memorize the height position, nor can it switch the upper tube between specific heights, which is still inconvenient. In view of this, how to improve the telescopic rod structure to facilitate switching the upper tube to a specific height has become a goal of relevant industry players. Utility Model Content

[0004] In order to solve the above problem, the utility model provides a telescopic rod structure and a bicycle, which can quickly switch the position of the upper tube through structural configuration.

[0005] According to one embodiment of the utility model, a telescopic rod structure is provided, comprising a lower tube, an upper tube, a support tube, a control module and a clamping tube. The lower tube comprises a first end and a second end opposite to each other. The upper tube is inserted into the lower tube from the first end of the lower tube and is used to move relative to the lower tube, and the upper tube and the lower tube define a containing space. The support tube is arranged in the containing space and one end is adjacent to the first end of the lower tube, and the other end is adjacent to the second end of the lower tube. The control module is located in the containing space and comprises a valve tube, at least one abutment and a control valve. One end of the valve tube is connected to the aforementioned end of the support tube and comprises at least one containing hole. The aforementioned at least one abutment is movably located in the aforementioned at least one containing hole. The control valve is movably located in the valve tube and comprises at least one recess. The clamping tube is located between the inner wall of the upper tube and the outer wall of the valve tube and is linked to the upper tube, and the clamping tube comprises at least two clamping parts and a clamping tail plug. The at least two engaging parts are arranged along the axis of the upper tube, and the at least two engaging parts are used for selective engagement of the at least one push piece. The engaging tail plug is engaged with one end of the engaging tube adjacent to the supporting tube, and includes a through hole for the valve tube to pass through. When the at least one push piece is engaged with the engaging part, the upper tube is prevented from moving relative to the lower tube. When the control valve moves relative to the valve tube along the axis so that the at least one recess is aligned with the at least one push piece, the at least one push piece enters the at least one recess to move away from the engaging part, allowing the upper tube to move relative to the lower tube so that the at least one push piece is aligned with another engaging part.

[0006] Thus, by arranging at least two engaging parts along the axis, the control valve can be actuated to release the engagement of the abutting member with the engaging part, and then move the upper tube to couple with the other engaging part, so as to facilitate the switching of the upper tube position. In addition, by arranging the engaging tail plug, the effect of improving the structural strength can be achieved.

[0007] According to the telescopic rod structure of the aforementioned embodiment, the valve tube may further include a valve tube body and a screw lock portion, wherein the aforementioned at least one accommodating hole radially penetrates the valve tube body, and the screw lock portion is integrally connected to one end of the valve tube body and is used to protrude from the engaging tail plug.

[0008] According to the telescopic rod structure of the aforementioned embodiment, the outer diameter of the screw lock portion may be smaller than the outer diameter of the valve tube body to form a step difference surface, and the control module further includes an elastic ring, which is sleeved outside the screw lock portion and abuts between the locking tail plug and the step difference surface.

[0009] According to the telescopic rod structure of the aforementioned embodiment, the locking tube may further include a locking tube body, the at least two locking portions are recessed in the locking tube body, the locking tail plug is locked to one end of the locking tube body, and the other end of the locking tube body is fixed to the upper tube.

[0010] The telescopic rod structure according to the aforementioned embodiment may further include a liner and a buffer elastic sleeve. The liner is sleeved outside the support tube. The buffer elastic sleeve can be sleeved outside the support tube and located between the locking tail plug and the liner.

[0011] The telescopic rod structure according to the aforementioned embodiment may further include a valve tube bushing, which is located in the accommodating space and sleeved outside the valve tube.

[0012] According to another embodiment of the utility model, a bicycle is provided, comprising a frame, a seat cushion and two wheels. The frame comprises the telescopic rod structure as described in the above embodiment, the seat cushion is arranged on the upper tube, and the wheels are arranged on the frame.

[0013] According to the bicycle of the above embodiment, the valve tube may include a valve tube body and a screw lock portion, wherein the at least one accommodating hole radially penetrates the valve tube body, the screw lock portion is integrally connected to one end of the valve tube body and protrudes from the engaging tail plug, and the outer diameter of the screw lock portion is smaller than the outer diameter of the valve tube body to form a step difference surface. The control module further includes an elastic ring, which is sleeved outside the screw lock portion and abuts between the engaging tail plug and the step difference surface.

[0014] According to the bicycle of the above embodiment, the engaging tube may include an engaging tube body, the at least two engaging parts are recessed in the engaging tube body, the engaging tail plug is locked to one end of the engaging tube body, and the other end of the engaging tube body is fixed to the upper tube.

[0015] According to the bicycle of the above embodiment, the telescopic rod structure may further include a liner, a buffer elastic sleeve and a buffer spring. The liner is sleeved outside the support tube, the buffer elastic sleeve may be sleeved outside the support tube and located between the clamping tail plug and the liner, and the buffer spring is located in the accommodating space and sleeved outside the liner and the buffer elastic sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional schematic diagram of a telescopic rod structure according to an embodiment of the utility model is shown;

[0017] Figure 2 Draw Figure 1 An exploded schematic diagram of the telescopic rod structure of an embodiment;

[0018] Figure 3 Draw Figure 1 A cross-sectional schematic diagram of the telescopic rod structure of the embodiment;

[0019] Figure 4 Draw Figure 1 A partially enlarged cross-sectional schematic diagram of the telescopic rod structure of the embodiment;

[0020] Figure 5 Draw Figure 1 Another schematic cross-sectional view of the telescopic rod structure of the embodiment; and

[0021] Figure 6 A three-dimensional schematic diagram of a bicycle according to another embodiment of the present invention is shown. DETAILED DESCRIPTION

[0022] The following will describe embodiments of the present invention with reference to the accompanying drawings. For the sake of clarity, many practical details will be described together in the following description. However, the reader should understand that these practical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these practical details are not necessary. In addition, in order to simplify the drawings, some conventional structures and elements will be illustrated in a simple schematic manner in the drawings; and repeated elements may be represented by the same number or similar number.

[0023] In addition, the terms "first", "second", "third", etc. in this article are only used to describe different elements or components, and do not limit the elements / components themselves. Therefore, the first element / component can also be renamed as the second element / component. Moreover, the combination of elements / components / mechanisms / modules in this article is not a generally known, conventional or existing combination in this field. Whether the elements / components / mechanisms / modules themselves are prior art cannot be used to determine whether their combination relationship is easy to be easily completed by technicians in the technical field.

[0024] See also Figure 1 and Figure 2 ,in Figure 1 FIG. 1 is a three-dimensional schematic diagram of a telescopic rod structure 100 according to an embodiment of the present invention. Figure 2 Draw Figure 1 The telescopic rod structure 100 of the embodiment is an exploded view. The telescopic rod structure 100 includes a lower tube 110, an upper tube 120, a support tube 130, a control module 150 and a locking tube 140 (indicated at Figure 3 ).

[0025] The lower tube 110 includes a first end 111 and a second end 112 opposite to each other. The upper tube 120 is inserted into the lower tube 110 from the first end 111 of the lower tube 110 and is used to move relative to the lower tube 110. The upper tube 120 and the lower tube 110 define a receiving space. The support tube 130 is disposed in the receiving space and has one end adjacent to the first end 111 of the lower tube 110 and the other end adjacent to the second end 112 of the lower tube 110. The control module 150 is located in the receiving space and includes a valve tube 151, at least one abutting member 152 and a control valve 153. One end of the valve tube 151 is connected to the aforementioned end of the support tube 130 and includes at least one receiving hole 1511. The aforementioned at least one abutting member 152 is movably located in the aforementioned at least one receiving hole 1511. The control valve 153 is movably located in the valve tube 151 and includes at least one recess 1531.

[0026] The engaging tube 140 is located between the inner wall of the upper tube 120 and the outer wall of the valve tube 151 and is linked to the upper tube 120. The engaging tube 140 includes at least two engaging portions 141 (shown in FIG. Figure 3) and the tail plug 142. The at least two engaging portions 141 are arranged along the axis X1 (indicated at Figure 3 ) are arranged, and the at least two engaging portions 141 are used for selective engagement of the at least one push piece 152. The engaging tail plug 142 is engaged with one end of the engaging tube 140 adjacent to the supporting tube 130, and includes a through hole for the valve tube 151 to pass through. When the at least one push piece 152 is engaged with the engaging portion 141, the upper tube 120 is prevented from moving relative to the lower tube 110. When the control valve 153 moves relative to the valve tube 151 along the axis X1 so that the at least one recess 1531 is aligned with the at least one push piece 152, the at least one push piece 152 enters the at least one recess 1531 to move away from the engaging portion 141, allowing the upper tube 120 to move relative to the lower tube 110 so that the at least one push piece 152 is aligned with another engaging portion 141.

[0027] Thus, by arranging at least two engaging portions 141 along the axis X1, the control valve 153 is actuated to release the engagement of the abutting member 152 with the aforementioned engaging portion 141, and then the upper tube 120 is moved to couple with another engaging portion 141, so as to facilitate switching of the position of the upper tube 120. In addition, by arranging the engaging tail plug 142, the effect of improving the structural strength can be achieved. The details of the telescopic rod structure 100 will be described in detail later.

[0028] See also Figure 3 and Figure 4 , and see also Figure 2 ,in Figure 3 Draw Figure 1 A cross-sectional schematic diagram of the telescopic rod structure 100 of the embodiment, Figure 4 Draw Figure 1 A partially enlarged cross-sectional schematic diagram of the telescopic rod structure 100 of the embodiment. The lower tube 110 and the upper tube 120 can both be hollow tubular structures. The outer diameter of the upper tube 120 is smaller than the inner diameter of the lower tube 110 and can be inserted into the lower tube 110. The upper tube 120 is away from one end of the lower tube 110 and can be provided with a connecting element to connect the seat cushion of the bicycle. The lower tube 110 can also include an oil seal 114, a lower tube bushing 115 and a lower tube tail plug 113. The oil seal 114 is sleeved on the outer side of the first end 111, the lower tube bushing 115 is located on the inner side of the first end 111, the lower tube tail plug 113 is connected to the second end 112 of the lower tube 110, the support tube 130 is hollow and is arranged in the lower tube 110, and the end of the support tube 130 adjacent to the second end 112 can be locked to the stud of the lower tube tail plug 113.

[0029] The telescopic rod structure 100 may further include a liner 190, a buffer elastic sleeve 160, and a buffer spring 170. The liner 190 is sleeved outside the support tube 130. The buffer elastic sleeve 160 may be sleeved outside the support tube 130 and located between the clamping tail plug 142 and the liner 190. The buffer spring 170 is located in the accommodation space and sleeved outside the liner 190 and the buffer elastic sleeve 160. Specifically, one end of the liner 190 may be sleeved on the stud of the lower tube tail plug 113, the buffer elastic sleeve 160 may be connected to the other end of the liner 190, and the buffer spring 170 may be pressed between the lower tube tail plug 113 and the clamping tail plug 142. In this way, the liner 190 can prevent the buffer spring 170 from buckling when it is compressed, and the buffer elastic sleeve 160 can help provide a buffering function when the upper tube 120 descends.

[0030] like Figure 2 and Figure 3 As shown, the clamping tube 140 may further include a clamping tube body 143, wherein the at least two clamping parts 141 are recessed in the clamping tube body 143, the clamping tail plug 142 is locked to one end of the clamping tube body 143, and the other end of the clamping tube body 143 is fixed to the upper tube 120. Specifically, the clamping tube body 143 may be a hollow tubular structure made of metal material, so the two ends of the clamping tube body 143 are equivalent to the two ends of the clamping tube 140. In this embodiment, the number of the clamping parts 141 may be two, and they are integrally recessed in the clamping tube body 143. In this way, the integrated clamping tube 140 can be first combined with the control module 150, and then screwed and locked to the upper tube 120, so as to achieve the effect of modularization and convenient assembly. In other embodiments, the number of the clamping parts may be multiple, or the clamping tube body may be covered with the clamping parts from top to bottom, but it is not limited thereto.

[0031] The valve tube 151 may further include a valve tube body 1512 and a screw lock portion 1513. The aforementioned at least one accommodating hole 1511 radially penetrates the valve tube body 1512. The screw lock portion 1513 is integrally connected to one end of the valve tube body 1512 and is used to protrude from the clamping tail plug 142. The number of the aforementioned at least one accommodating hole 1511 may be four, and the four accommodating holes 1511 all radially penetrate the valve tube body 1512 and have the same height. Each accommodating hole 1511 can communicate with the interior of the valve tube body 1512. The screw lock portion 1513 may include an internal thread, and one end of the support tube 130 may include an external thread to be screwed to the screw lock portion 1513. Furthermore, the outer diameter of the screw lock portion 1513 may be smaller than the outer diameter of the valve tube body 1512 to form a stepped surface 1514 . The control module 150 further includes an elastic ring 156 , which is sleeved outside the screw lock portion 1513 and abuts between the locking tail plug 142 and the stepped surface 1514 .

[0032] like Figure 4As shown, a gap can be formed between the step difference surface 1514, the screw lock portion 1513 near the valve tube body 1512, and the engaging tail plug 142, and this gap can be used to accommodate the elastic ring 156. Accordingly, when the control valve 153 is displaced in the valve tube 151, the elastic ring 156 can have a buffering and vibration reduction effect. In addition, the control module 150 can further include a bushing ring groove and a valve tube bushing 155, the bushing ring groove is located in the valve tube body 1512, and the valve tube bushing 155 is sleeved in the bushing ring groove. In this way, through the lower tube bushing 115 and the valve tube bushing 155, the upper tube 120 can move stably.

[0033] The control valve 153 may also be hollow, and at least one recess 1531 is provided in one annular shape on the outer wall of the control valve 153, so that four receiving holes 1511 can be simultaneously corresponded. The side wall of the recess 1531 may have an inclined surface, so that the push-up member 152 can be pushed into the receiving hole 1511 when the control valve 153 moves upward along the axis X1. One end of the control valve 153 may be reduced in the radial direction, and the control module 150 may further include a control spring 154 located in the valve tube 151 and sleeved on the radially reduced end of the control valve 153. The push-up member 152 may have a ball structure, but is not limited thereto.

[0034] The telescopic rod structure 100 may further include an actuating assembly 180, which includes a block 181 and a wire 182. The block 181 is disposed in the control valve 153, and the wire 182 is passed through the support tube 130 and one end of the wire 182 is connected to the block 181. In this way, when the wire 182 is pulled, the control valve 153 can be controlled to actuate.

[0035] See also Figure 5 , and see also Figures 2 to 4 ,in Figure 5 Draw Figure 1 Another cross-sectional view of the telescopic rod structure 100 of the embodiment. Figure 3 As shown, at this time, the push member 152 is located in the receiving hole 1511 and is engaged with the engaging portion 141 below. Figure 4 As shown in FIG. 1 , when the line body 182 is pulled downward, the control valve 153 moves downward, causing the abutting member 152 to enter the recess 1531 and move away from the lower engaging portion 141. In this way, the engaging tube body 143 is not restricted, and the upper tube 120 is also not restricted, and can move relative to the lower tube 110. Figure 5 As shown, when the upper tube 120 is lowered relative to the lower tube 110 so that the upper engaging portion 141 and the resisting member 152 are aligned, the resisting member 152 can also be inserted into the upper engaging portion 141 to position the upper tube 120 .

[0036] See also Figure 6 ,in Figure 6A three-dimensional schematic diagram of a bicycle 200 according to another embodiment of the present invention is shown. The bicycle 200 includes a frame 210, a seat cushion 220, and two wheels 230. The frame 210 includes a telescopic rod structure 211, the seat cushion 220 is disposed on the upper tube, and the wheels 230 are disposed on the frame 210. The telescopic rod structure 211 can be as follows: Figures 1 to 5 The details of the telescopic rod structure 100 are not repeated here.

[0037] In other embodiments, the telescopic rod structure can be arranged on the vertical rod (head rod) of the bicycle to be connected to the vertical rod and the handlebar, so that one end of the upper tube can be detachably connected to the vertical rod, without Figure 6 Seatpost shown is limited.

[0038] Although the present invention has been disclosed as above by way of embodiments, it is not intended to limit the present invention. Any person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the definition of the attached claims.

[0039]

Explanation of symbols

[0040] 100,211: Telescopic rod structure

[0041] 110: Down tube

[0042] 111: First End

[0043] 112: Second End

[0044] 113: Down pipe tail plug

[0045] 114: Oil seal

[0046] 115: Down tube bushing

[0047] 120: Top tube

[0048] 130: Support tube

[0049] 140: snap-fit ​​tube

[0050] 141: snap-fit ​​part

[0051] 142: snap-on tail plug

[0052] 143: snap-fit ​​tube body

[0053] 150: Control module

[0054] 151: Valve pipe

[0055] 1511: Accommodation hole

[0056] 1512: Valve tube body

[0057] 1513: Screw lock

[0058] 1514: Class Difference

[0059] 152: Top piece

[0060] 153: Control valve

[0061] 1531: concave part

[0062] 154: Control spring

[0063] 155: Valve pipe bushing

[0064] 156: Elastic ring

[0065] 160: Buffer elastic sleeve

[0066] 170: Buffer spring

[0067] 180: Actuating assembly

[0068] 181: Card Block

[0069] 182: Line

[0070] 190: Liner

[0071] 200: Bicycle

[0072] 210: Frame

[0073] 220: Seat cushion

[0074] 230:Wheel

[0075] X1: axis.

Claims

1. A telescopic rod structure, characterized in that: Include: a lower tube including opposite first and second ends; An upper tube, inserted into the lower tube from the first end thereof and used to move relative to the lower tube, wherein the upper tube and the lower tube define a containing space; A supporting tube, disposed in the accommodating space and having one end adjacent to the first end of the lower tube and the other end adjacent to the second end of the lower tube; The control module is located in the accommodation space and includes: A valve tube, one end of which is connected to the one end of the support tube and comprises at least one accommodating hole; At least one abutting member, movably located in the at least one receiving hole; and a control valve movably located in the valve tube and comprising at least one recess; and The engaging tube is located between the inner wall of the upper tube and the outer wall of the valve tube and is linked to the upper tube. The engaging tube comprises: At least two engaging portions are arranged along the axis of the upper tube, and the at least two engaging portions are used for selectively engaging the at least one abutting member; and A clamping tail plug is clamped on one end of the clamping tube adjacent to the supporting tube and comprises a through hole for the valve tube to pass through; When the at least one push-piece is engaged with the engaging portion, the upper tube is prevented from moving relative to the lower tube. When the control valve moves relative to the valve tube along the axis so that the at least one recess is aligned with the at least one push-piece, the at least one push-piece enters the at least one recess to move away from the engaging portion, allowing the upper tube to move relative to the lower tube so that the at least one push-piece is aligned with another of the engaging portions.

2. The telescopic rod structure according to claim 1, characterized in that: The valve tube further comprises a valve tube body and a screw lock portion. The at least one accommodating hole radially penetrates the valve tube body. The screw lock portion is integrally connected to one end of the valve tube body and is used to protrude from the engaging tail plug.

3. The telescopic rod structure according to claim 2, characterized in that: The outer diameter of the screw lock portion is smaller than the outer diameter of the valve tube body to form a step difference surface. The control module further includes an elastic ring, which is sleeved outside the screw lock portion and abuts between the locking tail plug and the step difference surface.

4. The telescopic rod structure according to claim 2, characterized in that: The clamping tube further comprises a clamping tube body, the at least two clamping parts are recessed in the clamping tube body, the clamping tail plug is locked at one end of the clamping tube body, and the other end of the clamping tube body is fixedly connected to the upper tube.

5. The telescopic rod structure according to claim 1, characterized in that: Also includes: A liner pipe is sleeved outside the support pipe; and The buffer elastic sleeve is sleeved outside the support tube and is located between the clamping tail plug and the liner tube.

6. The telescopic rod structure according to claim 5, characterized in that: Also includes: The valve pipe bushing is located in the accommodating space and sleeved outside the valve pipe.

7. A bicycle, characterized in that: Include: A vehicle frame comprising the telescopic rod structure according to claim 1; A seat cushion is disposed on the upper tube; and Two wheels are arranged on the frame.

8. The bicycle according to claim 7, characterized in that: The valve tube also includes a valve tube body and a screw lock portion, the at least one accommodating hole radially penetrates the valve tube body, the screw lock portion is integrally connected to one end of the valve tube body and protrudes from the engaging tail plug, the outer diameter of the screw lock portion is smaller than the outer diameter of the valve tube body to form a step difference surface, and the control module also includes an elastic ring, which is sleeved on the outside of the screw lock portion and abuts between the engaging tail plug and the step difference surface.

9. The bicycle according to claim 7, characterized in that: The clamping tube further comprises a clamping tube body, the at least two clamping parts are recessed in the clamping tube body, the clamping tail plug is locked at one end of the clamping tube body, and the other end of the clamping tube body is fixedly connected to the upper tube.

10. The bicycle according to claim 7, characterized in that: The telescopic rod structure also includes: A liner pipe, sleeved outside the support pipe; A buffer elastic sleeve, which is sleeved outside the support tube and located between the locking tail plug and the liner tube; and The buffer spring is located in the accommodating space and is sleeved outside the liner and the buffer elastic sleeve.

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