Bicycle seat tube fixing structure

Abstract

The utility model relates to the technical field of bicycle seat tubes, and discloses a bicycle seat tube fixing structure which comprises a main body assembly, a seat tube head, a matching block, an extrusion block, a supporting tube and a saddle, the matching block is located on one side of the seat tube head, the extrusion block is arranged on one side of the matching block, and the supporting tube is arranged on the upper portion of the extrusion block. The saddle is fixed on the supporting pipe; the adjusting assembly is arranged in the seat tube head and comprises an adjusting piece. The bicycle saddle has the advantages that locking of the bicycle saddle and the saddle tube is achieved through the clamping mode of the clamping groove and the clamping block, a specific tool is not needed, a rider can make contact with the saddle to be locked only by rotating the handle, the angle of the saddle can be easily adjusted, meanwhile, during riding, the gravity of the rider acts on the saddle, separation of the clamping block and the clamping groove can be hindered, and the bicycle saddle is not prone to falling off. Therefore, the angle stability of the seat cushion is enhanced, and the situation that the angle of the seat cushion suddenly changes in the riding process, and riding comfort and safety are affected is avoided.

Description

Technical Field

[0001] This utility model relates to the field of bicycle seat post technology, and in particular to a bicycle seat post fixing structure. Background Technology

[0002] Bicycles, as an environmentally friendly and convenient means of transportation and fitness equipment, are loved by a wide range of consumers. During riding, the comfort and stability of the seatpost are crucial to the riding experience, and the design of the seatpost fixing structure directly affects the adjustment and fixation of the saddle angle. Adjusting the saddle angle usually requires using specific tools to loosen the bolts on the seatpost. If riders need to adjust the saddle angle temporarily while riding, it is often difficult to find suitable tools in time, making adjustment impossible and affecting riding comfort. Even after adjustment, if the bolts are not tightened properly, the saddle angle can easily loosen due to bumps and vibrations during riding, not only affecting riding comfort again but also potentially posing a safety hazard. Utility Model Content

[0003] In view of the problems existing in the above and / or existing bicycle seat post fixing structures, this utility model is proposed.

[0004] Therefore, the problem that this utility model aims to solve is the inconvenience of adjusting the angle between the bicycle seat and the seat post.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a bicycle seatpost fixing structure, which includes a main component, including a seatpost head, a mating block, a pressing block, a support tube, and a saddle, wherein the mating block is located on one side of the seatpost head, the pressing block is disposed on one side of the mating block, the support tube is disposed on the upper part of the pressing block, and the saddle is fixed to the support tube;

[0006] An adjustment assembly, disposed within the seat tube head, includes an adjustment component comprising a plug shaft, a rotating shaft, a moving column, a locking block, a slider, and a push plate. The seat tube head, the mating block, and the extrusion block are hollow, with the plug shaft inserted into them. A through hole is formed within the plug shaft, and the rotating shaft is connected to the inner wall of the through hole by a bearing. A first moving groove is formed within the plug shaft, and the moving column slides within the first moving groove. A second moving groove is formed within the extrusion block, and the locking block slides within the second moving groove. A locking groove is formed within the moving column, and the locking block can engage with the locking groove. A spiral groove is formed within the moving column, and the slider slides within the spiral groove. The push plate is fixed to the moving column.

[0007] As a preferred embodiment of the bicycle seatpost fixing structure of this utility model, the adjusting component further includes a locking element located inside the compression block, comprising a rubber pad and a lifting column. The rubber pad is fixed to the compression block, and a lifting groove is provided inside the compression block. The lifting column is fixed to one side of the rubber pad and slides within the lifting groove.

[0008] As a preferred embodiment of the bicycle seat post fixing structure of this utility model, a handle is fixed to one side of the pivot, a third moving groove is provided in the compression block, a locking block is provided in the third moving groove, a first spring is fixed to one side of the locking block, and a locking groove is provided in the handle.

[0009] As a preferred embodiment of the bicycle seat post fixing structure of this utility model, a second spring is fixed on one side of the movable column, and the other end of the second spring is fixed to the inner wall of the first movable groove.

[0010] As a preferred embodiment of the bicycle seatpost fixing structure of this utility model, one end of the locking block is inclined, and the locking groove has a corresponding shape and there are multiple of them.

[0011] In a preferred embodiment of the bicycle seatpost fixing structure of this utility model, a sliding block is fixed on the movable column, and a sliding groove is provided on the pressing block, wherein the sliding block slides within the sliding groove.

[0012] As a preferred embodiment of the bicycle seatpost fixing structure of this utility model, a third spring is fixed on one side of the locking block, and a push block is fixed on the locking block.

[0013] In a preferred embodiment of the bicycle seatpost fixing structure of this utility model, the seatpost head is fixed with a seatpost.

[0014] As a preferred embodiment of the bicycle seatpost fixing structure of this utility model, a first toothed block is fixed on the head of the seatpost, and a second toothed block is fixed at one end of the mating block, wherein the first toothed block can mesh with the second toothed block.

[0015] In a preferred embodiment of the bicycle seatpost fixing structure of this utility model, there are two sets of the mating blocks and the pressing blocks.

[0016] The beneficial effects of this utility model are as follows: the locking mechanism of the bicycle saddle and seat post is achieved by the engagement of the slot and the locking block. No special tools are required. The rider only needs to rotate the handle to engage the saddle and lock it, making it easy to adjust the saddle angle. At the same time, when riding, the rider's weight acts on the saddle, which will prevent the locking block from separating from the slot, thereby enhancing the stability of the saddle angle and preventing the saddle angle from changing suddenly during the ride, which would affect riding comfort and safety. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 A structural diagram of the bicycle seatpost fixing structure.

[0019] Figure 2 Bicycle seat post fixing structure Figure 1 Enlarged view of the structure at point A in the middle.

[0020] Figure 3 A cross-sectional view of the seatpost head, which is the fixing structure for the bicycle seatpost.

[0021] Figure 4 Bicycle seat post fixing structure Figure 3 Enlarged view of the structure at point B in the middle.

[0022] Figure 5 Bicycle seat post fixing structure Figure 3 Enlarged view of the structure at point C.

[0023] Figure 6 Bicycle seat post fixing structure Figure 3 Enlarged view of the structure at point D.

[0024] Figure 7 A cross-sectional view of the movable column used to fix the bicycle seat post.

[0025] Figure 8 A diagram of the seatpost head structure for fixing the bicycle seatpost.

[0026] Figure 9 A structural diagram of the mating block for fixing the bicycle seat post. Detailed Implementation

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0030] Example 1

[0031] Reference Figures 1-9 This is the first embodiment of the present utility model. This embodiment provides a bicycle seatpost fixing structure. The bicycle seatpost fixing structure includes a main component 100, including a seatpost head 101, a mating block 102, a pressing block 103, a support tube 104, and a saddle 105. The mating block 102 is located on one side of the seatpost head 101, the pressing block 103 is disposed on one side of the mating block 102, the support tube 104 is disposed on the upper part of the pressing block 103, and the saddle 105 is fixed on the support tube 104.

[0032] The mating block 102 and the pressing block 103 together form a cylindrical mounting groove. The support tube 104 can be placed in the mounting groove. The mating block 102 and the pressing block 103 press against each other to install the seat 105 onto the seat tube head 101.

[0033] Adjustment component 200, disposed within seat tube head 101, includes adjustment element 201. Adjustment element 201 includes insertion shaft 201a, rotating shaft 201b, moving column 201c, locking block 201d, slider 201e, and push plate 201f. Seat tube head 101, mating block 102, and pressing block 103 are hollow, and insertion shaft 201a is inserted into them. Through hole 201a-1 is opened in insertion shaft 201a. Rotating shaft 201b is connected to the inner wall of through hole 201a-1 by bearing. First... The first moving groove 201a-2 and the moving column 201c slide within the first moving groove 201a-2. The extrusion block 103 has a second moving groove 103-1. The locking block 201d slides within the second moving groove 103-1. The moving column 201c has a locking groove 201c-1. The locking block 201d can engage with the locking groove 201c-1. The moving column 201c has a spiral groove 201c-2. The slider 201e slides within the spiral groove 201c-2. The push plate 201f is fixed on the moving column 201c.

[0034] The adjusting member 201 is provided to adjust the distance between the pressing block 103 and the seat tube head 101, so that the seat 105 can be slightly separated from the seat tube head 101 in order to adjust the angle of the seat 105.

[0035] The insertion shaft 201a is provided with a protrusion, and the extrusion block 103 is provided with a corresponding groove. Through the cooperation of the protrusion and the groove, the insertion shaft 201a will not rotate relative to the extrusion block 103. The slider 201e is fixed to the rotating shaft 201b. When the rotating shaft 201b rotates, the slider 201e will slide along the spiral groove 201c-2, so that the moving column 201c slides in the first moving groove 201a-2. The size setting of the spiral groove 201c-2 is such that the rotating shaft 201b can only rotate 90 degrees, and the moving column 201c has a small stroke during the rotation of the shaft 201b.

[0036] By engaging the locking block 201d with the locking groove 201c-1, the position of the moving column 201c is locked. When the moving column 201c moves, it will drive the push plate 201f to move synchronously. One end face of the push plate 201f is in contact with the end face of the extrusion block 103, thereby driving the extrusion block 103 to move. When the extrusion block 103 moves toward the seat tube head 101, it will drive the mating block 102 to move toward the seat tube head 101, so that the two are tightly fitted together. At this time, the two will not rotate relative to each other.

[0037] Example 2

[0038] Reference Figures 1-9 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0039] Specifically, the adjustment component 200 also includes a locking component 202 located inside the compression block 103, including a rubber pad 202a and a lifting column 202b. The rubber pad 202a is fixed on the compression block 103, and a lifting groove 103-2 is provided inside the compression block 103. The lifting column 202b is fixed to one side of the rubber pad 202a and slides in the lifting groove 103-2.

[0040] By setting the locking element 202, it is ensured that the locking block 201d cannot be separated from the locking groove 201c-1 during riding, thereby ensuring that the mating block 102 and the seat post head 101 are tightly fitted, thus locking the angle of the saddle 105.

[0041] The rubber pad 202a has a certain deformation capacity, and the mating block 102 is also equipped with a rubber pad 202a. When the saddle 105 is installed on the seat post 101, the support tube 104 will not exert much pressure on the rubber pad 202a. At this time, the lifting column 202b will not affect the locking block 201d from moving upward a small distance. When the rider starts riding, the rider's weight will be applied to the saddle 105 and the support tube 104. At this time, the rubber pad 202a will be compressed, thereby driving the lifting column 202b to move downward along the lifting groove 103-2.

[0042] At this time, the bottom of the lifting column 202b is very close to the locking block 201d. The locking block 201d needs to move upward to separate from the locking groove 201c-1. Since the top of the locking block 201d is restricted by the lifting column 202b, it cannot move upward, thus ensuring that the locking block 201d will not separate from the locking groove 201c-1 when riding, thereby preventing the angle of the seat 105 from changing.

[0043] Specifically, a handle 202c is fixed on one side of the rotating shaft 201b, a third moving groove 103-3 is provided on the extrusion block 103, a locking block 202d is provided in the third moving groove 103-3, a first spring 202e is fixed on one side of the locking block 202d, and a locking groove 202c-1 is provided on the handle 202c.

[0044] The first spring 202e provides a continuous thrust to the locking block 202d, ensuring that the locking block 202d can engage with the locking slot 202c-1.

[0045] One end of the locking block 202d is arc-shaped, and the shape of the locking groove 202c-1 corresponds to it. When the handle 202c is in the vertical downward position, the mating block 102 and the seat tube head 101 are tightly fitted. The locking block 202d can engage with the locking groove 202c-1, thereby restricting the rotation of the handle 202c and thus restricting the rotation of the plug shaft 201a.

[0046] With the arc setting, the handle 202c rotates from a horizontal position downwards to a vertical position. During this process, the end face of the handle 202c will first contact and press against the end face of the locking block 202d, thereby compressing the first spring 202e. The locking block 202d will move along the third moving groove 103-3 without obstructing the rotation of the handle 202c. The first spring 202e has a large elastic force, requiring a large force to compress it. When the handle 202c is close to the vertical position, the user will feel a certain resistance when rotating the handle 202c. When adjusting the seat 105, it is also necessary to rotate the handle 202c from the vertical position to the horizontal position to complete this process. The large elastic force of the first spring 202e ensures that the locking block 202d will not separate from the locking groove 202c-1 during riding, thereby locking the handle 202c and locking the pivot 201b, preventing it from rotating.

[0047] Specifically, a second spring 201g is fixed to one side of the movable column 201c, and the other end of the second spring 201g is fixed to the inner wall of the first movable groove 201a-2.

[0048] The second spring 201g applies a continuous pushing force to the moving column 201c to drive the moving column 201c to reset. When the handle 202c is in the vertically downward position, the second spring 201g is in a compressed state. When the handle 202c is locked, the second spring 201g returns to its original state, and the auxiliary handle 202c returns to the horizontal position.

[0049] Specifically, one end of the locking block 201d is inclined, and the locking groove 201c-1 has a corresponding shape and there are multiple of them.

[0050] By tilting the handle 202c, when it is rotated to gradually move to a vertically downward position, it will drive the rotating shaft 201b to rotate. With the cooperation of the slider 201e and the spiral groove 201c-2, the moving column 201c moves along the first moving groove 201a-2 towards the direction of the pressing block 103. At this time, the inclined surface of the locking groove 201c-1 will press the locking block 201d, thereby causing the locking block 201d to move upward. As the moving column 201c moves, the locking block 201d will engage with other locking grooves 201c-1 again. This process is repeated until the handle 202c is in a vertical position. At this time, the locking block 201d is still engaged with the locking groove 201c-1, and the moving column 201c drives the push plate 201f to move synchronously, thereby causing the pressing block 103 to move towards the direction of the seat tube head 101, so that the seat tube head 101 and the mating block 102 fit tightly together.

[0051] Specifically, a sliding block 201h is fixed on the moving column 201c, and a sliding groove 103-4 is provided on the pressing block 103, and the sliding block 201h slides in the sliding groove 103-4.

[0052] The cooperation between the sliding block 201h and the sliding groove 103-4 prevents the moving column 201c from rotating synchronously when the rotating shaft 201b rotates, thereby affecting the movement of the moving column 201c in the first moving groove 201a-2.

[0053] Example 3

[0054] Reference Figures 1-9 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0055] Specifically, a third spring 201i is fixed on one side of the locking block 201d, and a push block 201j is fixed on the locking block 201d.

[0056] The third spring 201i applies a continuous pushing force to the locking block 201d, ensuring that the locking block 201d can engage with the locking groove 201c-1. The push block 201j is set to unlock the engagement between the locking block 201d and the locking groove 201c-1. When it is necessary to adjust the angle of the seat 105, the seat 105 will not be subjected to additional pressure. At this time, the lifting column 202b will not affect the locking block 201d from moving upward a small distance. Pushing the push block 201j compresses the third spring 201i, and the locking block 201d will move upward, thereby separating the locking block 201d from the locking groove 201c-1. At the same time, rotating the handle 202c separates the locking block 202d from the locking groove 202c-1. At this time, under the push of the second spring 201g, the moving column 201c will return to the initial position, thereby driving the push plate 201f to move away from the pressing block 103.

[0057] Specifically, the seat tube head 101 is fixed with a seat tube 106.

[0058] The seat tube head 101, mating block 102, extrusion block 103 and seat tube 106 are made of 6061-T6 high-strength aluminum material and adopt 3D integrated forging process, which can achieve lightweight while passing relevant test standards.

[0059] Specifically, a first toothed block 101a is fixed on the seat tube head 101, and a second toothed block 102a is fixed at one end of the mating block 102. The first toothed block 101a can mesh with the second toothed block 102a.

[0060] The seat tube head 101 is fixed to other parts of the bicycle by engaging the first tooth block 101a and the second tooth block 102a. When the seat tube head 101 is tightly fitted with the mating block 102, the first tooth block 101a and the second tooth block 102a are fully engaged. At this time, the mating block 102 will not rotate relative to the seat tube head 101, thereby fixing the angle of the seat 105. The toothed engagement structure can, to a certain extent, avoid the problem of seat angle loosening due to insufficient locking force, making riding safety more guaranteed.

[0061] When it is necessary to adjust the angle of the seat 105, simply separate the first tooth block 101a and the second tooth block 102a. Even if the mating block 102 and the seat tube head 101 are slightly separated, the mating block 102 and the pressing block 103 can be rotated to rotate the support tube 104 and the seat 105 relative to the seat tube head 101 to the required angle.

[0062] Specifically, there are two sets of mating blocks 102 and extrusion blocks 103.

[0063] A fourth spring 107 is provided between the two mating blocks 102. When the seat tube head 101 is in close contact with the mating block 102, the fourth spring 107 is in a compressed state. When the moving column 201c drives the push plate 201f to move away from the pressing block 103, the push plate 201f no longer presses the mating block 102 and the pressing block 103. At this time, the fourth spring 107 will push the mating block 102 to move slightly away from the seat tube head 101, thereby separating the first tooth block 101a from the second tooth block 102a. Then the angle of the seat 105 can be adjusted.

[0064] When in use, after installing and locking the seat 105, the handle 202c is in a vertically downward position, the locking block 202d engages with the locking groove 202c-1, restricting the rotation of the handle 202c. At the same time, the mating block 102 is tightly fitted with the seat tube head 101, and the first tooth block 101a and the second tooth block 102a are fully engaged. At this time, the mating block 102 will not rotate relative to the seat tube head 101, thereby fixing the angle of the seat 105.

[0065] When the angle of the seat 105 needs to be adjusted, push the push block 201j to compress the third spring 201i, and the locking block 201d will move upward, thereby separating the locking block 201d from the locking groove 201c-1. At the same time, rotate the handle 202c to separate the locking block 202d from the locking groove 202c-1. At this time, under the push of the second spring 201g, the moving column 201c will drive the push plate 201f to move away from the pressing block 103. The push plate 201f will no longer press the mating block 102 and the pressing block 103. At this time, the fourth spring 107 will push the mating block 102 to move slightly away from the seat tube head 101, thereby separating the first tooth block 101a from the second tooth block 102a. Rotate the mating block 102 and the pressing block 103 to rotate the support tube 104 and the seat 105 relative to the seat tube head 101 to the required angle.

[0066] After adjustment, rotate handle 202c to gradually bring it to a vertically downward position. Handle 202c drives shaft 201b to rotate, and moving column 201c moves along the first moving groove 201a-2 towards the direction of pressing block 103. At this time, the inclined surface of locking groove 201c-1 will press the locking block 201d, thereby causing the locking block 201d to move upward. As moving column 201c moves, locking block 201d will engage with other locking grooves 201c-1 again. Repeat this process until handle 202c is in a vertical position again. At this time, locking block 201d is still engaged with locking groove 201c-1, and moving column 201c drives push plate 201f to move synchronously, thereby causing pressing block 103 to move towards the direction of seat tube head 101, thereby tightly engaging the first tooth block 101a and the second tooth block 102a, thereby fixing the angle of seat 105.

[0067] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A bicycle seat tube fixing structure characterized by: include, The main body component (100) includes a seat tube head (101), a mating block (102), a pressing block (103), a support tube (104), and a seat (105). The mating block (102) is located on one side of the seat tube head (101), the pressing block (103) is disposed on one side of the mating block (102), the support tube (104) is disposed on the upper part of the pressing block (103), and the seat (105) is fixed on the support tube (104). An adjustment assembly (200), disposed within the seat tube head (101), includes an adjustment member (201). The adjustment member (201) includes a plug-in shaft (201a), a rotating shaft (201b), a moving column (201c), a locking block (201d), a slider (201e), and a push plate (201f). The seat tube head (101), the mating block (102), and the pressing block (103) are hollow, and the plug-in shaft (201a) is inserted into them. A through hole (201a-1) is formed inside the plug-in shaft (201a). The rotating shaft (201b) is connected to the inner wall of the through hole (201a-1) by a bearing. A first moving column is formed inside the plug-in shaft (201a). The moving groove (201a-2) is provided. The moving column (201c) slides in the first moving groove (201a-2). The pressing block (103) has a second moving groove (103-1). The locking block (201d) slides in the second moving groove (103-1). The moving column (201c) has a locking groove (201c-1). The locking block (201d) can engage with the locking groove (201c-1). The moving column (201c) has a spiral groove (201c-2). The slider (201e) slides in the spiral groove (201c-2). The push plate (201f) is fixed on the moving column (201c).

2. The bicycle seat tube fixation structure according to claim 1, characterized in that: The adjustment assembly (200) also includes a locking element (202) located inside the compression block (103), which includes a rubber pad (202a) and a lifting column (202b). The rubber pad (202a) is fixed on the compression block (103), and a lifting groove (103-2) is provided inside the compression block (103). The lifting column (202b) is fixed to one side of the rubber pad (202a) and slides in the lifting groove (103-2).

3. The bicycle seat tube fixation structure according to claim 1 or 2, characterized in that: A handle (202c) is fixed to one side of the rotating shaft (201b), the pressing block (103) has a third moving groove (103-3), a locking block (202d) is provided in the third moving groove (103-3), a first spring (202e) is fixed to one side of the locking block (202d), and a locking groove (202c-1) is provided in the handle (202c).

4. The bicycle seat tube fixation structure according to claim 3, characterized in that: A second spring (201g) is fixed to one side of the movable column (201c), and the other end of the second spring (201g) is fixed to the inner wall of the first movable groove (201a-2).

5. The bicycle seat tube securing structure according to claim 4, characterized in that: One end of the locking block (201d) is inclined, and the locking groove (201c-1) has a corresponding shape and there are multiple of them.

6. The bicycle seat tube fixation structure according to claim 4 or 5, characterized in that: A sliding block (201h) is fixed on the movable column (201c), and a sliding groove (103-4) is provided on the extrusion block (103). The sliding block (201h) slides in the sliding groove (103-4).

7. The bicycle seat tube securing structure according to claim 6, characterized in that: A third spring (201i) is fixed on one side of the locking block (201d), and a push block (201j) is fixed on the locking block (201d).

8. The bicycle seat tube securing structure according to claim 7, characterized in that: The seat tube head (101) is fixed with a seat tube (106).

9. The bicycle seat tube fixation structure according to claim 7 or 8, characterized in that: The seat tube head (101) is fixed with a first tooth block (101a), and the mating block (102) is fixed with a second tooth block (102a) at one end. The first tooth block (101a) can mesh with the second tooth block (102a).

10. The bicycle seat tube securing structure as claimed in claim 9, wherein: There are two sets of the mating block (102) and the extrusion block (103).

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