Connecting rod shock-proof seat tube

Abstract

The utility model relates to a connecting rod shock-proof seat tube, which is arranged between a seat tube and a seat cushion, and at least comprises an upper seat body, a lower seat body, a first connecting rod, a second connecting rod, a groove seat and a buffer component, the groove seat is connected to the first connecting rod or the second connecting rod and located between the pivoting ends, the buffering assembly is pivoted to the pivoting ends and the groove seat, the buffering assembly can provide buffering force which is transmitted to the seat cushion through the first connecting rod or the second connecting rod, good buffering and anti-vibration effects can be achieved, a user can feel more comfortable when riding the bicycle, and the user can feel comfortable when riding the bicycle. And the seat cushion can swing more smoothly relative to the seat tube under the action of the buffer component.

Description

TECHNICAL FIELD

[0001] The utility model relates to a connecting rod shock absorbing seat tube, mainly applied to the bicycle technical field. BACKGROUND

[0002] A bicycle is a commonly used transportation tool, which uses human power pedaling as its power source, does not need to use electricity or gasoline, is extremely environmentally friendly, and is very suitable for use as a general transportation tool or a leisure sports device.

[0003] In the current environment, there are few completely flat road surfaces, so when a user rides a bicycle, encounters a rugged road, or rides on a stone road, a drop terrain, etc., the bicycle will vibrate due to the uneven ground. To solve this problem, most bicycles are equipped with shock absorbing devices to absorb the shock force, so that the user can feel more comfortable when riding.

[0004] The shock absorbing device is usually installed under the handlebars, front fork, rear fork, and seat tube of the bicycle. As for the current shock absorbing seat tube, it includes an inner tube, an outer tube, and a spring. The top end of the inner tube is connected to the seat cushion. The outer tube is sleeved on the inner tube, and the bottom end of the outer tube is connected to the vehicle body. The spring is inserted into the outer tube, and the two ends are respectively abutted against the inner tube and the outer tube, thereby providing the inner tube with a buffering force. There is a slight gap between the outer tube and the inner tube, which can limit the axial movement of the inner tube and reduce the friction between the two.

[0005] However, the vibration generated when the bicycle is running is not all axial force, and some forward and backward directional components will inevitably be generated. These components can cause the inner tube to abut against the outer tube, and the friction between the inner and outer tubes can cause poor buffering and shock absorbing effect. In addition, after long-term use, the pipe wall will be worn out, and the gap between the inner tube and the outer tube will increase, which will cause the outer tube to be unable to effectively limit the axial movement of the inner tube, and the inner tube may shake forward and backward in the outer tube, thereby causing the seat cushion to shake when not buffering and shock absorbing.

[0006] Therefore, many seat tube shock absorbing structures have appeared on the market, such as Taiwan Patent Publication Nos. M528906, M250849, M250851, and M610848. The aforementioned conventional patents all use multiple connecting rods connected between the seat cushion and the seat tube, and an elastic element is obliquely arranged between the seat cushion and the seat tube to provide elastic force for the swing reset of the connecting rod and absorb shock force to achieve shock absorbing effect. However, the above-mentioned conventional patents all have the defect of being unable to effectively extrude the elastic element, and the seat cushion cannot form a relatively smooth swing relative to the seat tube, which needs to be further improved. UTILITY MODEL CONTENTS

[0007] The utility model wants to solve the technical problem: provide a connecting rod shock absorbing seat pipe, it has good and smooth buffering and shock absorbing effect, and can effectively reduce seat cushion shake, let user can be more comfortable when riding bicycle, overcome the deficiency of prior art.

[0008] To solve the above technical problems, the utility model adopts the following technical scheme: a connecting rod shock absorbing seat pipe is provided between the seat pipe and the seat cushion, and at least includes: an upper seat body, a lower seat body, a first connecting rod, a second connecting rod, a groove seat and a buffer assembly; the lower seat body is sleeved on the seat pipe, and the front and rear sides of the lower seat body are respectively provided with a front lower pivot end and a rear lower pivot end; the upper seat body is used for pivoting the seat cushion, and the front and rear sides of the upper seat body are respectively provided with a front upper pivot end and a rear upper pivot end; the first connecting rod is located at the front end of the seat pipe and is pivoted between the front lower pivot end and the front upper pivot end; the second connecting rod is located at the rear end of the seat pipe and is pivoted between the rear lower pivot end and the rear upper pivot end; the groove seat is connected to the first connecting rod or the second connecting rod, and is located between the front upper pivot end and the rear upper pivot end or between the front lower pivot end and the rear lower pivot end; the upper end of the buffer assembly is pivoted to the front upper pivot end or the rear upper pivot end or the groove seat, and the lower end of the buffer assembly is pivoted to the front lower pivot end or the rear lower pivot end or the groove seat.

[0009] Preferably, the groove seat is connected to the second connecting rod and is located between the front lower pivot end and the rear lower pivot end; the upper end of the buffer assembly is pivoted to the upper seat body and protrudes out of the first connecting rod, and the lower end of the buffer assembly is pivoted to the groove seat.

[0010] Preferably, the upper seat body extends an extension part towards the outside of the first connecting rod, and the upper end of the buffer assembly is pivoted to the extension part.

[0011] Preferably, the buffer assembly has an upper sleeve and a lower sleeve with different outer diameters and capable of being sleeved with each other, an elastic element sleeved outside the upper sleeve and the lower sleeve, and a fixing assembly located on one side of the upper sleeve or one side of the lower sleeve, capable of pivoting the buffer assembly between the upper seat body and the lower seat body, and the elastic element can be compressed or relaxed between the upper seat body and the lower seat body.

[0012] Preferably, the first connecting rod, the upper sleeve and the front upper pivot end are pivoted to each other through a shaft column.

[0013] Preferably, the first connecting rod and the front upper pivot end are pivoted to each other through a shaft column, one end of the upper sleeve is formed in a concave arc shape and can be correspondingly sleeved outside the shaft column, and the upper sleeve can be pivoted along the surface of the shaft column by using the concave arc shape.

[0014] Preferably, the fixing member has an inner and outer thread for screwing with the groove, and the surface of the fixing member has a groove for receiving the upper sleeve or the lower sleeve.

[0015] Preferably, the groove is arc-shaped, and the upper sleeve or the lower sleeve has a corresponding arc surface.

[0016] Preferably, the fixing member further has an adjusting hole on the outer side away from the groove.

[0017] Preferably, the first and second connecting rods are connected to the lower seat and the upper seat through a shaft.

[0018] The beneficial effects of the present application are as follows: through the above technical means, the elastic element can be used to absorb the vibration force, and a buffer force is transmitted to the seat cushion through the first connecting rod or the second connecting rod, achieving the effect of shock absorption; at the same time, the elastic element is arranged between the lower seat and the upper seat, and the elastic element is pivotally connected between the groove of one of the pivotally connected ends and the two pivotally connected ends of the lower seat and the upper seat. The groove can be moved with the first connecting rod or the second connecting rod, so that the elastic element can be more effectively compressed, ensuring that the seat cushion can be more smoothly swung relative to the seat pipe, further improving its added value and economic benefits.

[0019] The present application will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structure perspective view of the first embodiment of the connecting rod shock-absorbing seat pipe of the present application.

[0021] Figure 2 is a structure schematic view of the first embodiment of the connecting rod shock-absorbing seat pipe of the present application.

[0022] Figure 3 is a use schematic view of the first embodiment of the connecting rod shock-absorbing seat pipe of the present application.

[0023] Figure 4 is a structure perspective view of the second embodiment of the connecting rod shock-absorbing seat pipe of the present application.

[0024] Figure 5 is a structure schematic view of the second embodiment of the connecting rod shock-absorbing seat pipe of the present application.

[0025] Figure 6 is a structure perspective view of the third embodiment of the connecting rod shock-absorbing seat pipe of the present application.

[0026] Figure 7 is a structure schematic view of the third embodiment of the connecting rod shock-absorbing seat pipe of the present application. DETAILED DESCRIPTION

[0027] The present application relates to a seat tube of a bicycle, and more particularly to a seat tube of a bicycle with a shock absorbing structure. Figure 1 and Figure 2 The seat tube of the present application provides a shock absorbing structure installed between a seat tube and a seat pad, which comprises a lower seat body, an upper seat body, a first connecting rod, a second connecting rod, and a shock absorbing component.

[0028] The seat tube has a tube body 11, and the lower seat body 20 is sleeved on the tube body 11 of the seat tube. The front and rear sides of the lower seat body 20 are respectively provided with a front lower pivot end 21 and a rear lower pivot end 22, and the front lower pivot end 21 and the rear lower pivot end 22 are both provided with through holes.

[0029] The upper seat body 30 is used to pivotally connect a seat pad (not shown) of a bicycle. The upper seat body 30 comprises a seat arch clamping portion 31 and a pivot portion 32. The seat arch clamping portion 31 is located on both sides of the pivot portion 32 and is used to clamp a set of seat arches of a seat pad. The pivot portion 32 of the upper seat body 30 is provided with a front upper pivot end 321 and a rear upper pivot end 322, and the front upper pivot end 321 and the rear upper pivot end 322 are both provided with through holes.

[0030] The first connecting rod 40 is located at the front end of the tube body 11 of the seat tube and is pivotally connected between the front lower pivot end 21 and the front upper pivot end 321. The second connecting rod 50 is located at the rear end of the tube body 11 of the seat tube and is pivotally connected between the rear lower pivot end 22 and the rear upper pivot end 322. As shown in Figure 3 The first and second connecting rods 40, 50 are connected to the lower seat body 20 and the upper seat body 30 by penetrating the through holes through the shaft columns 71, and bearings (not shown) are respectively arranged on both sides of the shaft columns 71 penetrating the lower seat body 20 and on both sides of the shaft columns 71 penetrating the upper seat body, so that the first and second connecting rods 40, 50 can be rotatably connected to the lower seat body 20 and the upper seat body 30 around the shaft columns 71 as the axis. In addition, the first and second connecting rods 40, 50 can respectively extend the shielding area 51 towards the elastic element 63, which can cover the gap between the first and second connecting rods 40, 50 and the elastic element 63 without affecting the deformation range of the elastic element 63, so as to avoid the user's hand from being injured by stretching into the gap.

[0031] The upper end of the buffering assembly 60 is pivotally arranged at the front upper pivotal end 321 or the rear upper pivotal end 322 or between the front upper pivotal end 321 and the rear upper pivotal end 322, and the lower end of the buffering assembly 60 is pivotally arranged at the front lower pivotal end 21 or the rear lower pivotal end 22 or between the front lower pivotal end 21 and the rear lower pivotal end 22. In the first embodiment shown in the figures, the upper end of the buffering assembly 60 is pivotally arranged at the front upper pivotal end 321, and the lower end of the buffering assembly 60 is pivotally arranged at the lower seat body 20 relative to the front lower pivotal end 21 and the rear lower pivotal end 22. The buffering assembly 60 has an upper sleeve body 61 and a lower sleeve body 62 with different outer diameters and capable of being sleeved with each other, an elastic element 63 sleeved outside the upper and lower sleeve bodies 61, 62, and a fixing assembly 64 arranged at one side of the upper sleeve body 61 or one side of the lower sleeve body 62. The fixing assembly 64 can pivotally connect the buffering assembly 60 between the upper and lower seat bodies 30, 20. The elastic element 63 can be compressed or relaxed between the upper and lower seat bodies 30, 20 in an active manner. The first connecting rod 40, the upper sleeve body 61 and the front upper pivotal end 321 are pivotally connected through a shaft column 71. In the embodiment shown in the figures, the upper sleeve body 61 is configured as a tubular structure, and the lower sleeve body 62 is configured as a columnar structure. The inner diameter of the upper sleeve body 61 is greater than the outer diameter of the lower sleeve body 62. The mutual sleeving of the upper and lower sleeve bodies 61, 62 provides a guiding effect, which can provide a stable travel space during the compression or relaxation of the elastic element 63, thereby ensuring that the elastic element 63 does not deviate.

[0032] As shown in the embodiment, the fixing member 64 has a groove 641 and a fixing member 642, and the groove 641 and the fixing member 642 have internal and external threads for screwing with each other. The groove 641 is connected to the second connecting rod 50 and located between the front lower pivot end 21 and the rear lower pivot end 22. The lower seat body 20 has a recess 24 for accommodating the groove 641. The fixing member 642 has a groove 643 on the surface for accommodating the upper sleeve 61 or the lower sleeve 62. The groove 643 can be arc-shaped. One side of the upper sleeve 61 or one side of the lower sleeve 62 forms an arc surface 65. The arc surface 65 and the groove 643 correspond to each other, so that one side of the upper sleeve 61 or one side of the lower sleeve 62 can pivot in any direction in the groove 643. Further, the outer side of the fixing member 642 away from the groove 643 further has an adjusting hole 644. The lower seat body 20 also has a through hole 23 for exposing the adjusting hole 644. The user can adjust the depth of the fixing member 642 relative to the groove 641 through the adjusting hole 644 by using a tool, so as to adjust the elasticity of the elastic element 63, or make the fixing member 642 separate from the groove 641, so as to facilitate the maintenance or replacement of the elastic element 63. Of course, the groove 64 can also be connected to the first connecting rod and located between the front upper pivot end and the rear upper pivot end.

[0033] When the user sits on the seat cushion and starts to ride the bicycle, the upper seat body 30 will be connected to the seat cushion and press against the first connecting rod 40 and the second connecting rod 50, so that the first connecting rod 40 and the second connecting rod 50 can move relative to the lower seat body 20 and the upper seat body 30. The upper seat body 30 can swing relative to the lower seat body 20 to press against the elastic element 63, as shown. The elastic element 63 absorbs the vibration force and provides a buffering force to the seat cushion through the first connecting rod 40 or the second connecting rod 50, so as to achieve the shock-absorbing effect. Figure 3 It is particularly noted that the elastic element 63 is arranged between the lower seat body 20 and the upper seat body 30, and the groove 641 is connected between one of the pivot ends of the lower seat body 20 and the upper seat body 30 and the two pivot ends. The groove 641 can be connected to the first connecting rod 40 or the second connecting rod 50, so that the elastic element 63 can be more effectively squeezed, and the seat cushion can be more smoothly swung relative to the seat tube.

[0034] Further, as shown in Figure 4 and Figure 5In the second embodiment shown, the first link 40 and the front upper pivot end 321 are pivotally connected by a shaft 71, and one end of the upper sleeve 61 is configured in a concave arc shape to correspondingly fit outside the shaft 71, and the concave arc shape allows the upper sleeve 61 to pivot along the surface of the shaft 71. The other end of the upper sleeve 61 can also push against the elastic element 63, allowing the elastic element 63 to be compressively or elastically movable between the upper and lower seats 30 and 20.

[0035] In addition, as shown in the third embodiment, Figure 6 and Figure 7 the upper end of the buffer assembly 60 is pivotally connected to the upper seat 30 and protrudes outside the first link 40. The upper seat 30 extends an extension 33 towards the outside of the first link 40, and the upper end of the buffer assembly 60 is pivotally connected to the extension 33. The lower end of the buffer assembly 60 is pivotally connected to the groove seat 641 and is relative to the front lower pivot end 21 and the rear lower pivot end 22. The buffer assembly 60 also has upper and lower sleeves 61 and 62 with different outer diameters that can be fitted with each other, an elastic element 63 fitted outside the upper and lower sleeves 61 and 62, and a fixing assembly 64. One end of the upper sleeve 61 is pivotally connected to the extension 33, and the fixing assembly 64 pivotally connects one end of the lower sleeve 62 to the groove seat 641 and relative to the front lower pivot end 21 and the rear lower pivot end 22.

Claims

1. A linkage shock absorbing seat tube, which provides mounting between a seat tube and a seat post, at least comprising: an upper seat body, a lower seat body, a first linkage, a second linkage, a slot seat, and a damping assembly; characterized in that: The lower seat body is sleeved on the seat pipe, and the front and rear sides of the lower seat body are respectively provided with a front lower pivot end and a rear lower pivot end; the upper seat body is used for pivoting the seat cushion, and the front and rear sides of the upper seat body are respectively provided with a front upper pivot end and a rear upper pivot end; the first connecting rod is located at the front end of the seat pipe and is pivoted between the front lower pivot end and the front upper pivot end; the second connecting rod is located at the rear end of the seat pipe and is pivoted between the rear lower pivot end and the rear upper pivot end; the groove seat is connected to the first connecting rod or the second connecting rod, and is located between the front upper pivot end and the rear upper pivot end or between the front lower pivot end and the rear lower pivot end; the buffer assembly has an upper end pivoted to the front upper pivot end or the rear upper pivot end or the groove seat, and a lower end pivoted to the front lower pivot end or the rear lower pivot end or the groove seat.

2. The connecting rod shock absorber tube of claim 1 wherein: The groove seat is connected to the second connecting rod and is located between the front lower pivot end and the rear lower pivot end; the buffer assembly has an upper end pivoted to the upper seat body and protruding out of the first connecting rod, and a lower end pivoted to the groove seat.

3. The connecting rod shock tower tube of claim 2, wherein: The upper seat body extends towards the first connecting rod by an extension, and the upper end of the buffer assembly is pivoted to the extension.

4. The connecting rod shock tower tube of claim 1 wherein: The buffer assembly has an upper sleeve body and a lower sleeve body with different outer diameters and capable of being sleeved with each other, an elastic element sleeved outside the upper sleeve body and the lower sleeve body, and a fixing assembly located on one side of the upper sleeve body or one side of the lower sleeve body, capable of pivoting the buffer assembly between the upper seat body and the lower seat body, and the elastic element being capable of being abutted by the upper sleeve body and the lower sleeve body and being in compression or relaxation between the upper seat body and the lower seat body.

5. The connecting rod shock tower tube of claim 4, wherein: The first connecting rod, the upper sleeve body and the front upper pivot end are pivoted to each other by a shaft column.

6. The connecting rod shock tower tube of claim 4, wherein: The first connecting rod and the front upper pivot end are pivoted to each other by a shaft column, and one end of the upper sleeve body is formed in a concave arc shape and is capable of being sleeved outside the shaft column, and the upper sleeve body is capable of pivoting along the surface of the shaft column by using the concave arc shape.

7. The connecting rod shock tower tube of claim 4, wherein: The fixing assembly has a fixing member, and the groove seat and the fixing member have internal and external threads capable of being screwed to each other, and the surface of the fixing member has a groove capable of accommodating the upper sleeve body or the lower sleeve body.

8. The connecting rod shock tower tube of claim 7, wherein: The groove can be arc-shaped, and one side of the upper sleeve body or one side of the lower sleeve body is formed with a corresponding arc surface.

9. The connecting rod shock tower tube of claim 7, wherein: The outer side of the fixing member away from the groove further has an adjusting hole.

10. The connecting rod shock tower tube of claim 1 wherein: The first and second connecting rods are connected to the lower seat body and the upper seat body by a shaft column.

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