Hidden damping mechanism and bicycle

Abstract

The utility model discloses a hidden shock absorption mechanism and a bicycle, and relates to the technical field of bicycle shock absorption. The hidden damping mechanism comprises a middle pipe fixing seat, a first connecting piece and a second connecting piece. A first hidden baffle and a second hidden baffle are arranged on the middle pipe fixing base in a protruding mode, and the first hidden baffle and the second hidden baffle are arranged on the two sides of the middle pipe fixing base in a spaced mode to form a hidden space used for containing a shock absorber. At least part of the first connecting piece is located in the hidden space, and the first connecting piece is rotationally connected with the first hidden baffle and the second hidden baffle; the second connecting piece is rotatably connected with the first hidden baffle and the second hidden baffle, and the first connecting piece and the second connecting piece are connected to the two ends of the shock absorber respectively. By adopting the technology provided by the utility model, the anti-collision effect can be effectively realized.

Description

Technical Field

[0001] This utility model relates to the field of bicycle shock absorption technology, specifically to a concealed shock absorption mechanism and a bicycle. Background Technology

[0002] Bicycles generate a lot of vibrations when riding, especially when going over bumpy roads. These vibrations are transmitted to the rider's body through the frame, seat, handlebars, and other parts. Therefore, bicycles (especially mountain bikes) are usually designed with shock absorption devices.

[0003] Currently, shock absorbers can be divided into concealed shock absorbers and exposed shock absorbers. A concealed shock absorber, as disclosed in Chinese Utility Model Patent Document 1 (CN206623945U), is embedded within the five-way junction area formed by the front and rear triangles of the bicycle frame to achieve a fully enclosed concealment effect. However, this shock absorber is too far from the bicycle seat, thus failing to achieve optimal shock absorption.

[0004] Exposed shock absorbers, such as those disclosed in Chinese Utility Model Patent Document 2 (CN 219635404 U) for a bicycle with a four-bar linkage and those in Chinese Utility Model Patent Document 3 (CN200939915Y) for a bicycle frame with a reverse four-bar linkage system, are located under the bicycle seat to achieve better vibration reduction. However, in actual use, these exposed shock absorbers do not integrate tightly with the bicycle frame, resulting in a relatively large overall size.

[0005] Therefore, the suspension device can also be inserted into the bottom tube of the bicycle. However, the rider's leg movement when mounting the bike can easily collide with the suspension device, leading to injury. This is especially true for women's mountain bikes, because the frame of women's mountain bikes is thinner than that of men's mountain bikes, making it easier for the rider to collide with the suspension device in the bottom tube, posing a higher safety risk. Utility Model Content

[0006] This invention provides a concealed shock absorption mechanism to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the present invention provides a concealed shock absorption mechanism, which includes: a central tube fixing seat, a first connecting member, and a second connecting member.

[0008] The central tube fixing seat is provided with a first hidden baffle and a second hidden baffle. The first hidden baffle and the second hidden baffle are spaced apart on both sides of the central tube fixing seat to form a hidden space for accommodating the shock absorber.

[0009] The first connector is at least partially located within the hidden space and is rotatably connected to the first hidden baffle and the second hidden baffle, respectively; the second connector is rotatably connected to the first hidden baffle and the second hidden baffle, wherein the first connector and the second connector are respectively connected to both ends of the shock absorber.

[0010] The beneficial effects of the technical solution provided by this utility model compared to the prior art are as follows:

[0011] By adding a center tube mounting bracket and a first and second hidden baffle protruding from the bracket to create a semi-enclosed hidden space, the shock absorber is housed within this space. This makes the bicycle frame's center tube section more aesthetically pleasing and effectively prevents injuries from collisions with the shock absorber when getting on and off the bike. Especially for women's models with thinner frame handlebars, the shock absorber's absence from the frame structure effectively prevents impact damage.

[0012] The shock absorber is located on one side of the center tube mount, and the first and second connectors are located on the same side of the center tube mount and connected to the shock absorber to achieve side shock absorption for the bicycle frame. Furthermore, this concealed shock absorption mechanism is concentrated in the center tube section of the bicycle frame (the middle of the bicycle body), which is closer to the saddle than a fully enclosed concealed design, has a shorter travel, and provides better shock absorption and cushioning for the bicycle body.

[0013] In some embodiments, the first connector is provided with a first shaft, which passes sequentially through the first concealed baffle, the first connector, and the second concealed baffle. The first shaft connects the central tube fixing seat and the first connector.

[0014] In some implementations, the concealed shock absorption mechanism further includes an upper fork connector and a lower fork connector, wherein the upper fork connector is rotatably connected to the first connector, and the lower fork connector is rotatably connected to the second connector.

[0015] During bicycle assembly, the rear triangle structure (the frame part connected to the rear wheel) needs to be welded to the center tube. Using the aforementioned technical solution, the rear triangle structure can be welded separately to the upper and lower fork connectors, achieving better shock absorption for the rear wheel. The rotatable connection of the upper and lower fork connectors allows for tolerances in the rear triangle structure, thus reducing assembly difficulty compared to traditional rigid connections and allowing for more possibilities in bicycle design.

[0016] In some embodiments, the first connector further includes a first mounting lug for connection with the upper fork connector and a first mounting seat for connection with the shock absorber, wherein a first shaft is located between the first mounting lug and the first mounting seat.

[0017] In some embodiments, the second connector is provided with a second mounting lug for connection with the lower fork connector, a second mounting seat for connection with the shock absorber, and a fixing part for connection with the center tube fixing seat, wherein the second mounting seat is located between the second mounting lug and the fixing part.

[0018] By adopting the above technical solution, the connection between the first connector and the middle tube fixing seat is improved through the installation and connection method of the first connector and the second connector, and the shock absorber can be set at a certain tilt angle in the hidden space of the middle tube fixing seat.

[0019] In some embodiments, the upper fork connector and the lower fork connector have an arc-shaped notch on the side away from the center tube fixing seat, and welding recesses are provided on both ends of the arc-shaped notch. Using the above technical solution, the welding recesses are used to fix the bicycle frame to the rear triangle structure, facilitating welding operations to the rear triangle structure while maintaining a compact layout.

[0020] In some implementations, the concealed shock absorption mechanism further includes a connecting piece located between the arc-shaped recesses. One end of the connecting piece is embedded in the upper fork connector, and the other end has a protruding connecting post for fixed connection with the lower fork connector. By employing the above technical solution, the upper and lower fork connectors use different connection methods, allowing for a certain tolerance in the installation of the connecting piece, thereby reducing assembly difficulty.

[0021] In some implementations, the concealed shock absorption mechanism further includes a seat tube connected to the middle tube fixing seat and at least partially embedded in the middle tube fixing seat to ensure the connection strength between the seat tube and the middle tube fixing seat.

[0022] In some implementations, the first and second hidden baffles have notches on the side facing the connecting piece to at least partially expose the second connector and the shock absorber. By employing the above technical solution, the first and second hidden baffles have notches, meaning they do not completely conceal the shock absorber, thus achieving a semi-concealed design and further reducing the assembly difficulty of the overall damping mechanism.

[0023] In some embodiments, this application also provides a bicycle, including the aforementioned concealed shock absorption mechanism and bicycle frame, wherein the bicycle frame is provided with upper fork legs for connection to the upper fork connector and lower fork legs for connection to the lower fork connector. The above technical solution constitutes a four-bar linkage in the bicycle suspension system, which can cooperate with shock absorbers to achieve better vibration damping and cushioning effects. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in 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, wherein:

[0025] Figure 1 This is a three-dimensional structural diagram of an embodiment of a concealed shock absorption mechanism provided by this utility model;

[0026] Figure 2 This is a schematic diagram showing the connection between the seat tube and the middle tube fixing seat of an embodiment of the concealed shock absorption mechanism provided by this utility model;

[0027] Figure 3 This is a schematic diagram showing the connection between the seat tube and the middle tube fixing seat of an embodiment of the concealed shock absorption mechanism provided by this utility model;

[0028] Figure 4 This is a three-dimensional structural diagram of an embodiment of a concealed shock absorption mechanism provided by this utility model. Figure 1 ;

[0029] Figure 5 This is a three-dimensional structural diagram of an embodiment of a concealed shock absorption mechanism provided by this utility model. Figure 2 ;

[0030] Figure 6 This is a cross-sectional structural diagram of an embodiment of a concealed shock absorption mechanism provided by this utility model.

[0031] In the picture:

[0032] 10. Central tube fixing seat; 11. First hidden baffle; 12. Second hidden baffle; 13. Hidden space; 14. Shock absorber; 15. Notch; 20. First connector; 21. First shaft; 22. First mounting lug; 23. First mounting seat;

[0033] 30. Second connector; 31. Second mounting lug; 32. Second mounting base; 33. Fixing part; 40. Upper fork connector; 41. Lower fork connector; 42. Arc-shaped notch; 43. Welding recess; 50. Connecting piece; 51. Connecting post; 60. Seat tube. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0035] For ease of subsequent description, it is worth noting that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more.

[0036] See Figures 1 to 2 As shown, Figure 1 A three-dimensional structural schematic diagram of an embodiment of a concealed shock absorption mechanism provided in this application is shown; Figure 2 A schematic diagram showing the connection between the seat tube 60 and the middle tube fixing seat 10 of an embodiment of a concealed shock absorption mechanism provided in this application is shown.

[0037] In some implementations, the concealed shock absorption mechanism includes: a central tube fixing seat 10, a first connecting member 20, and a second connecting member 30. For example... Figure 2 As shown, the middle tube fixing seat 10 is provided with a first hidden baffle 11 and a second hidden baffle 12. The first hidden baffle 11 and the second hidden baffle 12 are spaced apart on both sides of the middle tube fixing seat 10 to form a hidden space 13 for accommodating the shock absorber 14.

[0038] like Figure 1 As shown, the first connector 20 is at least partially located within the hidden space 13 and is rotatably connected to the first hidden baffle 11 and the second hidden baffle 12 respectively; the second connector 30 is rotatably connected to the first hidden baffle 11 and the second hidden baffle 12, wherein the first connector 20 and the second connector 30 are respectively connected to both ends of the shock absorber 14.

[0039] In this embodiment, by adding a center tube fixing seat 10 and a first hidden baffle 11 and a second hidden baffle 12 protruding from the center tube fixing seat 10 to form a semi-enclosed hidden space 13, the shock absorber 14 is built into the hidden space 13, thereby making the shape of the bicycle frame center tube more beautiful, and effectively preventing the bicycle from colliding with the shock absorber 14 and getting injured when getting on and off the bicycle.

[0040] Exemplarily, the concealed shock absorption mechanism also includes a seat tube 60, which is connected to and at least partially embedded in the center tube mounting base 10 to ensure the strength of the connection between the seat tube 60 and the center tube mounting base 10. Furthermore, the shock absorber 14 does not protrude from the frame structure after assembly. This is particularly effective for women's models with thinner handlebars, providing excellent impact protection. Specifically, the concealed shock absorption mechanism offers superior impact protection for women's models, but can also prevent impacts in men's models.

[0041] Combination Figure 1 As shown, the shock absorber 14 is located on one side of the center tube mounting bracket 10. The first connector 20 and the second connector 30 are located on the same side of the center tube mounting bracket 10 and connected to the shock absorber 14 to achieve side shock absorption of the bicycle frame. Furthermore, the aforementioned concealed shock absorption mechanism is concentrated in the center tube section of the bicycle frame (the middle part of the bicycle body), making assembly more convenient compared to other locations. In some application scenarios, such as... Figure 2 As shown, the hidden space 13 is also equipped with multiple reinforcing plates to enhance the structural strength of the central tube fixing seat 10.

[0042] In some implementations, the first concealed baffle 11 and the second concealed baffle 12 are provided with notches 15 on the side facing the connecting piece 50 to at least partially expose the second connector 30 and the shock absorber 14.

[0043] In this embodiment of the application, the notch 15 of the first hidden baffle 11 and the second hidden baffle 12 is shaped as follows: Figure 1 As shown, the first hidden baffle 11 and the second hidden baffle 12 do not completely cover the shock absorber 14. Specifically, the exposed parts of the second connector 30 and the shock absorber 14 are as follows: Figure 1 As shown, this semi-concealed design further reduces the assembly difficulty of the overall shock absorption mechanism, reduces the material used in the central tube fixing seat 10, and facilitates observation of the status of the shock absorber 14. Exemplarily, this application does not limit the type of shock absorber 14; for example, a pneumatic shock absorber 14 or a spring shock absorber 14 can be used.

[0044] Combination Figure 3 As shown, Figure 3 A three-dimensional structural schematic diagram of the first connector 20 of an embodiment of a concealed shock absorption mechanism provided in this application is shown.

[0045] In some embodiments, the first connector 20 is provided with a first shaft 21, which passes sequentially through the first hidden baffle 11, the first connector 20, and the second hidden baffle 12. The first shaft 21 connects the central tube fixing seat 10 and the first connector 20. Exemplarily, the first connector 20 and the second connector 30 are integrally formed.

[0046] Combination Figure 4 As shown, Figure 4 This application provides a three-dimensional structural schematic diagram of an embodiment of a concealed shock absorption mechanism. Figure 1 .

[0047] In some implementations, the concealed shock absorption mechanism further includes an upper fork connector 40 and a lower fork connector 41, wherein the upper fork connector 40 is rotatably connected to the first connector 20, and the lower fork connector 41 is rotatably connected to the second connector 30.

[0048] During bicycle assembly, the rear triangle structure (the frame part connected to the rear wheel) needs to be welded to the center tube. For example, the upper fork connector 40 is used for welding to the upper fork legs, and the lower fork connector 41 is used for welding to the lower fork legs. Adding the upper fork connector 40 and the lower fork connector 41 can achieve better shock absorption for the rear wheel portion of the bicycle. The rotatable connection of the upper fork connector 40 and the lower fork connector 41 allows for tolerances in the rear triangle structure. For example, if the distance between the upper and lower fork legs is fixed, the upper fork connector 40 and the lower fork connector 41 can rotate a certain angle to match this distance. Therefore, compared to traditional rigid connections, this reduces the assembly difficulty of the bicycle frame and allows for more possibilities in the diverse design of bicycle models. For example, the first connector 20, the second connector 30, the upper fork connector 40, and the lower fork connector 41 all have a hollow structure.

[0049] See Figure 5 As shown, Figure 5 This application provides a three-dimensional structural schematic diagram of an embodiment of a concealed shock absorption mechanism. Figure 2 .

[0050] In some embodiments, the first connector 20 is further provided with a first mounting lug 22 for connection with the upper fork connector 40 and a first mounting seat 23 for connection with the shock absorber 14, wherein the first shaft 21 is located between the first mounting lug 22 and the first mounting seat 23. The second connector 30 is provided with a second mounting lug 31 for connection with the lower fork connector 41, a second mounting seat 32 for connection with the shock absorber 14, and a fixing part 33 for connection with the center tube fixing seat 10, wherein the second mounting seat 32 is located between the second mounting lug 31 and the fixing part 33.

[0051] In this embodiment, the connection between the first connector 20 and the second connector 30 and the center tube mounting base 10 is improved by using different installation connection methods, and the shock absorber 14 can be set at a certain angle in the hidden space 13 of the center tube mounting base 10; at the same time, the upper fork connector 40 and the lower fork connector 41 can form a four-bar suspension system with the rear triangle structure.

[0052] In some implementation schemes, combined Figure 4 and Figure 5 As shown, the upper fork connector 40 and the lower fork connector 41 have an arc-shaped recess 42 on the side away from the center tube fixing seat 10, and welding recesses 43 are provided on both ends of the arc-shaped recess 42. In this embodiment, the welding recesses 43 are fixedly connected to the rear triangle structure of the bicycle frame, which facilitates welding operations to the rear triangle structure while maintaining a compact layout.

[0053] See Figure 6 As shown, Figure 6 A cross-sectional structural diagram of an embodiment of a concealed shock absorption mechanism provided in this application is shown.

[0054] In some implementations, the concealed shock absorption mechanism further includes a connecting piece 50, which is located between the arc-shaped recesses 42. One end of the connecting piece 50 is embedded in the upper fork connector 40, and the other end has a protruding connecting post 51 for fixed connection with the lower fork connector 41. In this embodiment, the upper fork connector 40 and the lower fork connector 41 adopt different connection methods, which can reserve a certain tolerance for the installation of the connecting piece 50, thereby reducing the assembly difficulty.

[0055] In some embodiments, this application also provides a bicycle including the aforementioned concealed shock absorption mechanism and bicycle frame, wherein the bicycle frame is provided with upper fork legs for connection to upper fork connector 40 and lower fork legs for connection to lower fork connector 41. The concealed shock absorption mechanism, together with the upper and lower fork legs, forms a four-link suspension system, which can cooperate with the shock absorber 14 to achieve better shock absorption and cushioning effects.

[0056] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, should be included within the protection scope of this utility model.

Claims

1. A concealed shock absorption mechanism, characterized in that, include: A center tube fixing seat, wherein the center tube fixing seat is provided with a first hidden baffle and a second hidden baffle, the first hidden baffle and the second hidden baffle are spaced apart on both sides of the center tube fixing seat to form a hidden space for accommodating the shock absorber; A first connector, at least partially located within the hidden space, is rotatably connected to the first hidden baffle and the second hidden baffle, respectively. The second connector is rotatably connected to the first hidden baffle and the second hidden baffle, wherein the first connector and the second connector are respectively connected to both ends of the shock absorber.

2. The concealed shock absorption mechanism according to claim 1, characterized in that, The first connector is provided with a first shaft, which passes through the first hidden baffle, the first connector and the second hidden baffle in sequence.

3. The concealed shock absorption mechanism according to claim 1, characterized in that, The concealed shock absorption mechanism further includes an upper fork connector and a lower fork connector, wherein the upper fork connector is rotatably connected to the first connector, and the lower fork connector is rotatably connected to the second connector.

4. The concealed shock absorption mechanism according to any one of claims 2 or 3, characterized in that, The first connector is further provided with a first mounting lug for connecting with the upper fork connector and a first mounting seat for connecting with the shock absorber, wherein the first shaft is located between the first mounting lug and the first mounting seat.

5. The concealed shock absorption mechanism according to any one of claims 1 to 3, characterized in that, The second connector is provided with a second mounting lug for connecting with the lower fork connector, a second mounting seat for connecting with the shock absorber, and a fixing part for connecting with the middle tube fixing seat, wherein the second mounting seat is located between the second mounting lug and the fixing part.

6. The concealed shock absorption mechanism according to claim 3, characterized in that, The upper fork connector and the lower fork connector are provided with an arc-shaped notch on the side away from the middle tube fixing seat, and welding recesses are provided on both ends of the arc-shaped notch.

7. The concealed shock absorption mechanism according to claim 6, characterized in that, The concealed shock absorption mechanism also includes a connecting piece, which is located between the arc-shaped recesses. One end of the connecting piece is embedded in the upper fork connector, and the other end is provided with a connecting post for fixing to the lower fork connector.

8. The concealed shock absorption mechanism according to claim 1, characterized in that, The concealed shock absorption mechanism also includes a seat tube, which is connected to the middle tube fixing seat and is at least partially embedded in the middle tube fixing seat.

9. The concealed shock absorption mechanism according to any one of claims 6 to 8, characterized in that, The first and second hidden baffles have notches on the side facing the connecting piece to at least partially expose the second connector and the shock absorber.

10. A bicycle, characterized in that, The bicycle frame includes the concealed shock absorption mechanism and bicycle frame as described in any one of claims 1 to 9, wherein the bicycle frame is provided with upper fork legs for connection to the upper fork connector and lower fork legs for connection to the lower fork connector.

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