Shock absorption components and vehicles

Abstract

This application relates to a shock-absorbing component and a carrier. The shock-absorbing component includes: a first fixed base; a second fixed base, movably connected to the first fixed base and movable relative to the first fixed base along the axial direction of the shock-absorbing component; a first buffer member disposed between the first and second fixed bases; and a second buffer member disposed on either the first or second fixed base. The axial movement of the second fixed base relative to the first fixed base includes a first shock-absorbing stroke and a second shock-absorbing stroke following the first shock-absorbing stroke. During the first shock-absorbing stroke, the first buffer member provides a buffering effect between the first and second fixed bases, while the second buffer member does not provide a buffering effect between the first and second fixed bases; while during the second shock-absorbing stroke, both the first and second buffer members provide a buffering effect between the first and second fixed bases. The shock-absorbing component of this application can suppress impacts caused by the shock-absorbing component bottoming out.

Description

Technical Field

[0001] This application relates to the field of wheeled mobile device technology, and in particular to a shock-absorbing component and a vehicle. Background Technology

[0002] Vehicles such as strollers already exist. During the use of these vehicles, external impacts may cause collisions between components, resulting in vibrations felt by the users inside.

[0003] Shock-absorbing components can be installed between parts. These components may include buffers such as springs. When subjected to impact, the springs are compressed to absorb the impact force, thereby mitigating the impact between parts. However, existing shock-absorbing components may easily bottom out due to springs being compressed to their limits, still resulting in impacts or clattering sounds between parts, thus affecting the user experience. Summary of the Invention

[0004] Therefore, it is necessary to provide a shock-absorbing component and a carrier to address the above problems and suppress the impact caused by the shock-absorbing component hitting the bottom.

[0005] In a first aspect of this application, a vibration damping assembly is provided, comprising: a first fixed base; a second fixed base movably connected to the first fixed base and movable relative to the first fixed base along the axial direction of the vibration damping assembly; a first buffer member disposed between the first fixed base and the second fixed base; and a second buffer member disposed on either the first fixed base or the second fixed base. The axial movement of the second fixed base relative to the first fixed base includes a first damping stroke and a second damping stroke following the first damping stroke. During the first damping stroke, the first buffer member provides a damping effect between the first fixed base and the second fixed base, while the second buffer member does not provide a damping effect between the first fixed base and the second fixed base; while during the second damping stroke, both the first buffer member and the second buffer member provide a damping effect between the first fixed base and the second fixed base.

[0006] In the aforementioned shock absorption assembly, by incorporating both a first and a second buffer, only the first buffer provides cushioning between the first and second fixed seats during the first shock absorption stroke. However, during the subsequent second shock absorption stroke, both the first and second buffers provide cushioning between the first and second fixed seats. This allows for a smaller cushioning force from a single buffer during the earlier first shock absorption stroke, resulting in less and gentler impacts for the occupant, thus improving ride comfort. Conversely, the larger cushioning force from the dual buffers during the later stroke, closer to bottoming out, further suppresses bottoming out, thereby minimizing the impact of component collisions or impact noises caused by bottoming out and further enhancing the user experience.

[0007] In one embodiment, the second mounting base is closer to the first mounting base in the second damping stroke than in the first damping stroke.

[0008] In one embodiment, during the first damping stroke, one of the first fixed seat and the second fixed seat contacts the first buffer but not the second buffer, and during the second damping stroke, the same one of the first fixed seat and the second fixed seat contacts both the first buffer and the second buffer.

[0009] In one embodiment, the first mounting base has an axially extending internal cavity, which includes a first chamber and a second chamber disposed along the axial direction of the damping assembly. A first buffer is disposed in the first chamber, and a second buffer is disposed in the second chamber. The second chamber is axially further away from the second mounting base than the first chamber.

[0010] In one embodiment, as the first fixed seat and the second fixed seat approach each other, the second fixed seat sequentially travels through a first position, a second position, and a third position relative to the first fixed seat. At the second position, the second fixed seat changes from a state of not contacting the second buffer to a state of contacting the second buffer. The first damping stroke is the stroke in which the second fixed seat moves relative to the first fixed seat between the first position and the second position, and the second damping stroke is the stroke in which the second fixed seat moves relative to the first fixed seat between the second position and the third position.

[0011] In one embodiment, the second fixing seat has a contact portion capable of contacting or disengaging from the second buffer member, and the first position, the second position, and the third position are the positions of the contact portion relative to the first fixing seat.

[0012] In one embodiment, the internal cavity further includes a connecting channel connecting the first chamber and the second chamber, and the second fixed seat includes a piston portion that is axially movable relative to the first fixed seat. The end of the piston portion is axially movable relative to the first fixed seat in the connecting channel to contact the second buffer member during the second damping stroke.

[0013] In one embodiment, as the second fixed seat moves axially relative to the first fixed seat, the end of the piston portion can extend axially into or out of the second chamber.

[0014] In one embodiment, the piston portion includes a first piston section and a second piston section connected to the first piston section and located closer to the first fixed seat relative to the first piston section. During axial movement of the second fixed seat relative to the first fixed seat, the first piston section is axially movable within a first chamber, and the second piston section is axially movable within a connecting channel. The end of the second piston section is provided with a contact portion, which is axially extendable into the second chamber to contact the second buffer member or withdrawn from the second chamber to disengage from the second buffer member.

[0015] In one embodiment, in a first radial direction, the radial dimension of the first chamber and the radial dimension of the second chamber are greater than the radial dimension of the connecting channel; the radial dimension of the first piston segment is less than or equal to the radial dimension of the first chamber and greater than the radial dimension of the connecting channel; and the radial dimension of the second piston segment is less than or equal to the radial dimension of the connecting channel.

[0016] In one embodiment, in the first radial direction, the radial dimension of the first buffer is less than or equal to the radial dimension of the first chamber and greater than the radial dimension of the connecting channel; and the radial dimension of the second buffer is less than or equal to the radial dimension of the second chamber and greater than the radial dimension of the connecting channel.

[0017] In one embodiment, the first buffer has an axially extending hollow channel, through which the piston portion extends partially and into the connecting channel.

[0018] In one embodiment, the piston portion further includes a third piston section connected between the first piston section and the second piston section. In the first radial direction, the radial dimension of the third piston section is greater than or equal to the radial dimension of the connecting channel and less than or equal to the radial dimension of the hollow channel of the first buffer member.

[0019] In one embodiment, in the first radial direction, the radial dimension of the third piston segment gradually decreases along the direction from the second fixed seat to the first fixed seat.

[0020] In one embodiment, the first fixed seat has a first stop portion, the second fixed seat has a second stop portion, and the first buffer member is limited between the first stop portion and the second stop portion; when the second fixed seat moves toward the first fixed seat, the second stop portion moves relative to the first stop portion to deform the first buffer member, so that the first buffer member provides a buffering effect between the first fixed seat and the second fixed seat.

[0021] In one embodiment, the first fixed seat has a first stop portion, the second fixed seat has a second stop portion, and the first buffer member is limited between the first stop portion and the second stop portion; when the second fixed seat moves toward the first fixed seat, the second stop portion moves toward the first stop portion to compress the first buffer member, so that the first buffer member applies a first force to the second fixed seat to drive the second fixed seat away from the first fixed seat.

[0022] In one embodiment, the first fixed seat has a first connecting portion, the second fixed seat has a second connecting portion, and the first buffer member is connected between the first connecting portion and the second connecting portion; when the second fixed seat moves toward the first fixed seat, the second connecting portion moves away from the first connecting portion to stretch the first buffer member, such that the first buffer member applies a first force between the first fixed seat and the second fixed seat to drive the first fixed seat and the second fixed seat away from each other.

[0023] In one embodiment, the first fixed seat has a third stop and a fourth stop that is further away from the second fixed seat relative to the third stop, and the second buffer is positioned between the third stop and the fourth stop; when the second fixed seat moves toward the first fixed seat, the contact portion of the second fixed seat passes through the third stop and pushes the second buffer toward the fourth stop to compress the second buffer, so that the second buffer applies a second force between the first fixed seat and the second fixed seat to drive the first fixed seat and the second fixed seat away from each other.

[0024] In one embodiment, the first fixed seat has a fifth stop and a third connecting portion further away from the second fixed seat relative to the fifth stop. One end of the second buffer is connected to the third connecting portion, and the other end is stopped by the fifth stop. The third connecting portion is axially movable relative to the first fixed seat. When the second fixed seat moves toward the first fixed seat, the contact portion of the second fixed seat passes the fifth stop and pushes the third connecting portion away from the fifth stop to stretch the second buffer, so that the second buffer applies a second force between the first fixed seat and the second fixed seat to drive the first fixed seat and the second fixed seat away from each other.

[0025] In one embodiment, a first guide structure is provided on a first fixed seat, and a second guide structure is provided on a second fixed seat. The first fixed seat and the second fixed seat are movably connected by the cooperation of the first guide structure and the second guide structure. The cooperation of the first guide structure and the second guide structure can restrict the second fixed seat from moving axially between a first position and a third position relative to the first fixed seat, and can prevent the second fixed seat from detaching from the first fixed seat.

[0026] In one embodiment, the first guide structure includes a first pin, and the second guide structure includes a groove disposed on the second fixed base, the groove extending axially along the second fixed base. The two ends of the first pin are fixed to opposite sidewalls of the internal cavity of the first fixed base, and the first pin passes through the groove. As the first pin slides from the first end to the second end of the groove, the second fixed base moves axially relative to the first fixed base from a first position to a third position.

[0027] In one embodiment, the first buffer includes an elastic block or a spring, and the second buffer includes an elastic block or a spring.

[0028] In one embodiment, the elastic block has one or more hollow structures.

[0029] In one embodiment, the second fixed seat further includes a base portion connected to the piston portion at the end opposite to the first fixed seat. The base portion has a boss portion that is axially opposite to the end of the first fixed seat facing the second fixed seat. When the second fixed seat moves axially toward the first fixed seat to the end of the travel stroke, there is a gap between the boss portion and the end of the first fixed seat facing the second fixed seat.

[0030] In one embodiment, a window is provided on the first mounting base at a position corresponding to the first buffer member, the window being configured such that the first buffer member is at least partially visible from outside the first mounting base.

[0031] In a second aspect of this application, a carrier is provided, including a first component and a second component, and including a shock-absorbing assembly according to any of the foregoing embodiments, wherein a first fixing seat in the shock-absorbing assembly is connected to the first component; and a second fixing seat in the shock-absorbing assembly is connected to the second component.

[0032] In one embodiment, the vehicle includes: a frame assembly including a front wheel frame and a rear wheel frame connected to the front wheel frame; a rider assembly connected to the front wheel frame; and a seat assembly mounted on the rider assembly or the front wheel frame; wherein a first component is one of the rider assembly and the rear wheel frame, and a second component is the other of the rider assembly and the rear wheel frame.

[0033] In one embodiment, a second pin is provided at the end of the first fixing seat away from the second fixing seat, and the first fixing seat is pivotally connected to the first component via the second pin. A third pin is provided at the end of the second fixing seat away from the first fixing seat, and the second fixing seat is pivotally connected to the second component via the third pin.

[0034] In one embodiment, the carrier further includes a basket tube, with a first or second fixing seat movably connected to the basket tube.

[0035] In one embodiment, the carrier further includes a linkage, wherein a first fixed seat or a second fixed seat is movably connected to the basket tube via the linkage, wherein one end of the linkage is pivotally connected to the basket tube and the other end of the linkage is pivotally connected to the first fixed seat or the second fixed seat.

[0036] In one embodiment, a first guide structure is provided on the first fixed base, and the other end of the linkage is pivotally connected to the first fixed base via the first guide structure. Attached Figure Description

[0037] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0038] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Furthermore, the accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the various components are shown as examples only and not necessarily to scale. In the accompanying drawings:

[0040] Figure 1 This is a perspective view of a shock-absorbing component according to an embodiment of this application.

[0041] Figure 2 for Figure 1 The shock-absorbing components shown are displayed from different angles in a three-dimensional view.

[0042] Figure 3 for Figure 2 An exploded view of a first example of the shock-absorbing assembly shown.

[0043] Figure 4 for Figure 1 The first example of the shock-absorbing assembly shown is a cross-sectional view of U1-U1.

[0044] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0045] Figure 6 for Figure 4 Enlarged view of point B in the middle.

[0046] Figure 7 for Figure 1 The first example of the shock-absorbing assembly shown is a U1-U1 cross-sectional view, in which the second mounting bracket is in the first position.

[0047] Figure 8 for Figure 1 The first example of the shock-absorbing assembly shown is a U1-U1 cross-sectional view, in which the second mounting bracket is in the second position.

[0048] Figure 9 for Figure 1 The first example of the shock-absorbing assembly shown is a U1-U1 cross-sectional view, in which the second mounting bracket is in the third position.

[0049] Figure 10 for Figure 1 The second example of the shock-absorbing assembly shown is a U1-U1 cross-sectional view, in which the second mounting bracket is in the first position.

[0050] Figure 11 for Figure 1 The second example of the shock-absorbing assembly shown is a U1-U1 cross-sectional view, in which the second mounting bracket is in the second position.

[0051] Figure 12 for Figure 1 The second example of the shock-absorbing assembly shown is a U1-U1 cross-sectional view, in which the second mounting bracket is in the third position.

[0052] Figure 13 This is a side view of a vehicle according to an embodiment of this application.

[0053] Figure 14 for Figure 13 The image shows a perspective view of the vehicle, with the seat assembly omitted.

[0054] Figure 15 for Figure 13 The vehicle shown is presented from different angles in a three-dimensional view.

[0055] Explanation of reference numerals in the attached figures

[0056] 1000, Vehicles;

[0057] 100. Vibration damping components;

[0058] 110. First fixing seat; 111. First fixing seat body; 112. First fixing seat cover; 1101. Internal cavity; 1101a. First chamber; 1101b. Connecting channel; 1101c. Second chamber; 1111. First stop; 1112. Third stop; 1113. Fourth stop; 1114. First guide structure; 1114a. First pin; 1115. Viewing window; 1116. Second pin;

[0059] 120. Second fixed seat; 121. Piston part; 121a. First piston section; 121b. Second piston section; 121c. Third piston section; 1211. Contact part; 1212. Second stop part; 122. Base part; 1221. Boss part; 123. Second guide structure; 123a. Slide groove; 124. Third pin; 125. Closing hook;

[0060] 130, First buffer component; 130a, Spring;

[0061] 140, Second buffer component; 140a, Elastic block; 1401a, Hollow structure; 140b, Spring;

[0062] 200. Frame assembly; 210. Front wheel frame; 220. Rear wheel frame; 230. Front wheel; 240. Rear wheel;

[0063] 300. Driver's assembly; 310. Seat assembly mounting bracket; 320. Raised portion

[0064] 400. Seat assembly; 410. Surrounding frame; 420. Seat back support; 421. Seat back adjustment handle; 430. Armrest; 440. Roof support;

[0065] 500. Vegetable basket tube; 510. Linking component;

[0066] S1, first damping stroke; S2, second damping stroke;

[0067] P1, first position; P2, second position; P3, third position;

[0068] F1, axial direction; F2, first radial direction. Detailed Implementation

[0069] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0070] This application provides a shock-absorbing component 100, which can be applied between two parts of a vehicle 1000 to provide cushioning and shock absorption between the two parts. The vehicle 1000 can be any carrying tool for transporting living beings or objects. In some embodiments of this application, as an example, the vehicle 1000 can be a stroller. However, in other embodiments, depending on the usage scenario, the vehicle 1000 can also be a cargo cart, trailer, or pet stroller, etc. The shock-absorbing component 100 provided in this application can be applied between any two parts of the vehicle 1000 according to usage requirements, and this application is not limited thereto.

[0071] See Figure 1 and Figure 2 The damping assembly 100 includes a first fixed seat 110 and a second fixed seat 120. The second fixed seat 120 is movably connected to the first fixed seat 110 and can move relative to the first fixed seat 110 along the axial direction F1 of the damping assembly 100.

[0072] See Figure 3 and Figure 4 The shock-absorbing assembly 100 may include at least two buffer members, including a first buffer member 130 and a second buffer member 140. The first buffer member 130 is disposed between the first fixed base 110 and the second fixed base 120. The second buffer member 140 may be disposed on either the first fixed base 110 or the second fixed base 120. In the example illustrated in this application, see, for example, [reference needed]. Figure 3 and Figure 4 The second buffer 140 is held in the first fixed seat 110. However, it should be understood that in some other embodiments, the second buffer 140 may also be held in the second fixed seat 120, and this application is not limited to this. See also... Figures 7 to 12 The second fixed seat 120 may have a travel distance relative to the first fixed seat 110, moving along the axial direction F1 between one position and another. This travel distance may include a first damping travel S1 and a second damping travel S2 following the first damping travel S1. In the first damping travel S1, the first buffer 130 provides a damping effect between the first fixed seat 110 and the second fixed seat 120, while the second buffer 140 does not provide a damping effect between the first fixed seat 110 and the second fixed seat 120; while in the second damping travel S2, both the first buffer 130 and the second buffer 140 provide a damping effect between the first fixed seat 110 and the second fixed seat 120.

[0073] The buffering effect provided by the first buffer member 130 may include, for example, a first force provided by the first buffer member 130 that drives the second fixed seat 120 and the first fixed seat 110 away from each other. The buffering effect provided by the second buffer member 140 may include, for example, a second force provided by the second buffer member 140 that drives the second fixed seat 120 and the first fixed seat 110 away from each other.

[0074] The second damping stroke S2 ​​following the first damping stroke S1 means that during the process from the beginning to the end of the aforementioned movement stroke, that is, during the process of the second fixed seat 120 moving relative to the first fixed seat 110 along the axial direction F1 from one position to another, the second fixed seat 120 first moves through the first damping stroke S1 and then moves through the second damping stroke S2. For example, when the aforementioned movement stroke of the second fixed seat 120 is a movement stroke relative to the first fixed seat 110 along the axial direction F1 from the position furthest from the first fixed seat 110 to the position closest to the first fixed seat 110, the first damping stroke S1 can be a stroke in which the second fixed seat 120 and the first fixed seat 110 move closer to each other, while the second damping stroke S2 ​​can be another stroke in which the second fixed seat 120 and the first fixed seat 110 move closer to each other based on the first damping stroke S1.

[0075] In the aforementioned shock-absorbing assembly 100, by providing two buffers, a first buffer 130 and a second buffer 140, during the first shock-absorbing stroke S1, only the first buffer 130 provides a buffering effect between the first fixed seat 110 and the second fixed seat 120. However, during the subsequent second shock-absorbing stroke S1, both the first buffer 130 and the second buffer 140 provide a buffering effect between the first fixed seat 110 and the second fixed seat 120. Thus, in the earlier first shock-absorbing stroke S1, the smaller buffering force of a single buffer allows the passenger to experience less and more gentle impact, improving ride comfort. In the later stroke near bottoming out, the larger buffering force of the dual buffers more effectively suppresses bottoming out, thereby mitigating the impact of component impacts or impact noises caused by bottoming out on the user, further enhancing the user experience.

[0076] See Figures 7 to 12 , Figures 7 to 12 Cross-sectional views are shown of the second fixing seat 120 at different positions relative to the first fixing seat 110 as it moves along the axial direction F1. Figures 7 to 12For clarity, the position of the second fixing seat 120 relative to the first fixing seat 110 is represented by the position of the contact portion 1211 of the second fixing seat 120 (e.g., the top surface of the top end of the second fixing seat 120, which will be described later); however, it is understood that the position of other parts of the second fixing seat 120 (e.g., the center point) can also be used to represent the position of the second fixing seat 120 relative to the first fixing seat 110.

[0077] In one embodiment, along the axial direction F1, the second mounting base 120 is closer to the first mounting base 110 in the second damping stroke S2 ​​than in the first damping stroke S1. See also [link to relevant documentation] for such an embodiment. Figures 7 to 12 The aforementioned travel of the second fixed seat 120 can be a travel relative to the first fixed seat 110 along the axial direction F1, moving from a first position P1 furthest from the first fixed seat 110 to a third position P3 closest to the first fixed seat 110. Thus, the transition from the first damping travel S1 to the second damping travel S2 can occur as the second fixed seat 120 moves closer to the first fixed seat 110. However, in other embodiments, such as in examples where the damping effect is achieved by stretching the buffer member, the second fixed seat 120 may also be further away from the first fixed seat 110 in the second damping travel S2 than in the first damping travel S1.

[0078] In some embodiments, the switching between the first damping stroke S1 and the second damping stroke S2 ​​can be achieved by whether the first fixing seat 110 or the second fixing seat 120 contacts the first buffer 130 and the second buffer 140. In one embodiment, when the second buffer 140 is disposed on the first fixing seat 110, see [reference needed]. Figures 7 to 12In the first damping stroke S1, the second fixed seat 120 contacts the first buffer member 130 but not the second buffer member 140, and in the second damping stroke S2, the second fixed seat 120 contacts both the first buffer member 130 and the second buffer member 140. In one embodiment, the second fixed seat 120 has a contact portion 1211 that can contact or detach from the second buffer member 140. Thus, the second fixed seat 120 determines whether it is subjected to the buffering effect of the second buffer member 140 by whether or not its contact portion 1211 contacts the second buffer member 140. In one embodiment, the contact portion 1211 may include the end of the second fixed seat 120 facing the first fixed seat 110 (e.g., the end of the piston portion 121 facing the first fixed seat 110, described later). However, in other embodiments, the contact portion 1211 may also be implemented by other parts or parts of different shapes of the first fixed seat 110, such as a lug extending laterally from the side wall of the second fixed seat 120. In some other embodiments, when the second buffer 140 is disposed on the second fixed base 120, during the first damping stroke S1, the first fixed base 110 contacts the first buffer 130 but not the second buffer 140, while during the second damping stroke S2, the first fixed base 110 contacts both the first buffer 130 and the second buffer 140. Similarly, the first fixed base 110 may have a contact portion capable of contacting or disengaging from the second buffer 140. Thus, the first fixed base 110 determines whether it is subjected to the damping effect of the second buffer 140 by whether or not its contact portion contacts the second buffer 140.

[0079] In one embodiment, see Figures 7 to 12As the first fixed seat 110 and the second fixed seat 120 approach each other, the second fixed seat 120 travels sequentially through a first position P1, a second position P2, and a third position P3 relative to the first fixed seat 110. At the second position P2, the second fixed seat 120 changes from a state of not contacting the second buffer member 140 to a state of contacting the second buffer member 140. The first damping stroke S1 is the stroke by which the second fixed seat 120 moves relative to the first fixed seat 110 between the first position P1 and the second position P2, while the second damping stroke S2 ​​is the stroke by which the second fixed seat 120 moves relative to the first fixed seat 110 between the second position P2 and the third position P3. Thus, as the second fixed seat 120 moves closer to the first fixed seat 110, the second fixed seat 120 changes from not contacting the second buffer member 140 to contacting the second buffer member 140 at the second position P2, thereby switching from the first damping stroke S1 to the second damping stroke S2. As described above, the position of the contact portion 1211 of the second fixed base 120 relative to the first fixed base 110 can be used to represent the movement position of the second fixed base 120. Accordingly, the first position P1, the second position P2, and the third position P3 can all be represented by the position of the contact portion 1211 relative to the first fixed base 110.

[0080] The lengths of the first damping stroke S1 and the second damping stroke S2 ​​can be configured as needed. In one embodiment, the first damping stroke S1 is longer than the second damping stroke S2, allowing the user to feel less cushioning force during the longer first damping stroke S1 to improve comfort, while feeling more cushioning force only during the shorter second damping stroke S2 ​​just before bottoming out to suppress bottoming-out impact. In a specific example, the first damping stroke S1 is 30cm and the second damping stroke S2 ​​is 10cm, but this application is not limited to this.

[0081] In some embodiments, the travel distance of the second fixed seat 120 relative to the first fixed seat 110 may include additional travel distances besides the first damping travel distance S1 and the second damping travel distance S2 described above. For example, an initial travel distance may be included before the first damping travel distance S1, in which the contact portion 1211 of the second fixed seat 120 may not contact either the second buffer member 140 or the first buffer member 130, that is, neither the first buffer member 130 nor the second buffer member 140 provides a buffering effect between the first fixed seat 110 and the second fixed seat 120. In other words, the contact portion 1211 of the second fixed seat 120 may switch from a state of not contacting the first buffer member 130 to a state of contacting the first buffer member 130 only when it moves from the end of the initial travel distance away from the first damping travel distance S1 to a first position P1 between the initial travel distance and the first damping travel distance S1.

[0082] As described above, while the second fixed seat 120 and the first buffer member 130 maintain contact and provide a cushioning effect, the switching between whether the second fixed seat 120 and the second buffer member 140 are in contact and whether a cushioning effect is provided can be achieved by moving the second fixed seat 120 relative to the first fixed seat 110 to different positions, thereby achieving the switching between the first damping stroke S1 and the second damping stroke S2. Accordingly, the first buffer member 130 and the second buffer member 140 can be held in appropriate areas within the damping assembly 100 through appropriate construction to facilitate the switching between the first damping stroke S1 and the second damping stroke S2. For example, the first buffer member 130 and the second buffer member 140 can be held such that the second buffer member 140 is further away from the second fixed seat 120 than the first buffer member 130. In the following, the holding of the first buffer member 130 and the second buffer member 140 will be described by way of example construction. It is understood that those skilled in the art can make several modifications based on this, and this application is not limited thereto.

[0083] The first buffer 130 can be held between the first fixed seat 110 and the second fixed seat 120 by a retainer. In one embodiment, the first fixed seat 110 has a first retainer, the second fixed seat 120 has a second retainer, and the first buffer 130 is held between the first retainer and the second retainer; when the second fixed seat 120 moves toward the first fixed seat 110, the second retainer moves relative to the first retainer to deform the first buffer 130, thereby providing a cushioning effect between the first fixed seat 110 and the second fixed seat 120. The first buffer 130 can provide a cushioning effect through elastic deformation, such as compressive or tensile deformation, which can correspondingly provide a compressive or tensile force. In one embodiment, as an example of compressive deformation, see [reference needed]. Figure 6The first retainer may include a first stop 1111 on the first fixed seat 110, and the second retainer may include a second stop 1212 on the second fixed seat 120. The first buffer 130 is stopped and limited between the first stop 1111 and the second stop 1212. When the second fixed seat 120 moves toward the first fixed seat 110, the second stop 1212 moves toward the first stop 1111 to compress the first buffer 130, so that the first buffer 130 applies a first force between the first fixed seat 110 and the second fixed seat 120 to drive the first fixed seat 110 and the second fixed seat 120 away from each other. In another embodiment not illustrated in this application, as an example of tensile deformation, the first retainer may include a first connecting portion on the first fixed seat 110, the second retainer may include a second connecting portion on the second fixed seat 120, and the first buffer 130 is connected between the first connecting portion and the second connecting portion; when the second fixed seat 120 moves toward the first fixed seat 110, the second connecting portion moves away from the first connecting portion to stretch the first buffer 130, such that the first buffer 130 applies a first force between the first fixed seat 110 and the second fixed seat 120 to drive the first fixed seat 110 and the second fixed seat 120 away from each other.

[0084] The second buffer 140 can be held in a suitable area within the first fixed seat 110 by means of a retainer. In one embodiment, the first fixed seat 110 has a third retainer and a fourth retainer, and the second buffer 140 is held between the third retainer and the fourth retainer; when the second fixed seat 120 moves toward the first fixed seat 110, the contact portion 1211 of the second fixed seat 120 moves relative to the third or fourth retainer to deform the second buffer 140, thereby providing a cushioning effect between the first fixed seat 110 and the second fixed seat 120. The second buffer 140 can provide a cushioning effect through elastic deformation, which can be, for example, compressive deformation or tensile deformation, and correspondingly provide compressive or tensile forces. In one embodiment, as an example of compressive deformation, see [reference needed]. Figure 5The third and fourth retainers may each include a third stop portion 1112 on the first fixed seat 110 and a fourth stop portion 1113 that is further away from the second fixed seat 120 relative to the third stop portion 1112. The second buffer member 140 is stopped and limited between the third stop portion 1112 and the fourth stop portion 1113. When the second fixed seat 120 moves toward the first fixed seat 110, the contact portion 1211 of the second fixed seat 120 passes through the third stop portion 1112 and pushes the second buffer member 140 toward the fourth stop portion 1113 to compress the second buffer member 140, so that the second buffer member 140 applies a second force between the first fixed seat 110 and the second fixed seat 120 to drive the first fixed seat 110 and the second fixed seat 120 away from each other. In another embodiment not illustrated in this application, as an example of tensile deformation, the third retainer and the fourth retainer may each include a fifth stop on the first fixed seat 110 and a third connecting portion further away from the second fixed seat 120 relative to the fifth stop. One end of the second buffer 140 is connected to the third connecting portion, and the other end is stopped by the fifth stop. The third connecting portion is movable relative to the first fixed seat 110 along the axial direction F1. When the second fixed seat 120 moves toward the first fixed seat 110, the contact portion 1211 of the second fixed seat 120 passes the fifth stop and pushes the third connecting portion to move away from the fifth stop to stretch the second buffer 140, so that the second buffer 140 applies a second force between the first fixed seat 110 and the second fixed seat 120 to drive the first fixed seat 110 and the second fixed seat 120 away from each other.

[0085] In some embodiments of this application, see, for example, [link to relevant documentation]. Figure 3 and Figure 4 The first fixing seat 110 may have an internal cavity 1101 extending along the axial direction F1 from one end opening. The second fixing seat 120 may include a piston portion 121, which is movably fitted into the internal cavity 1101. By extending into and out of the internal cavity 1101, the second fixing seat 120 can move along the axial direction F1 closer to or further away from the first fixing seat 110. However, in some embodiments, the first fixing seat 110 and the second fixing seat 120 may also be movably connected in ways other than fitting together.

[0086] In some embodiments, the first buffer 130 and the second buffer 140 can be held in a suitable area by appropriately configuring the internal cavity 1101 and the piston portion 121, and the piston portion 121 can be facilitated to switch between the first damping stroke S1 and the second damping stroke S2 ​​by moving within the internal cavity 1101. Hereinafter, the holding of the first buffer 130 and the second buffer 140 and the movement of the piston portion 121 within the internal cavity 1101 will be described using an example configuration of the internal cavity 1101 and the piston portion 121. It is understood that those skilled in the art can make several modifications based on this, and this application is not limited thereto.

[0087] In one embodiment, see Figures 4 to 6 The internal cavity 1101 may include a first chamber 1101a and a second chamber 1101c disposed along the axial direction F1 of the damping assembly 100. The first chamber 1101a and the second chamber 1101c may communicate with each other, for example, adjacent and directly connected, or indirectly connected via other channels or chambers. A first buffer 130 may be disposed in the first chamber 1101a, and a second buffer 140 may be disposed in the second chamber 1101c. Compared to the first chamber 1101a, the second chamber 1101c is further away from the second fixed seat 120 in the axial direction F1. Thus, the second buffer 140 can be held in a region further away from the second fixed seat 120 than the first buffer 130. In one embodiment, see [reference needed]. Figures 4 to 6 The internal cavity 1101 may also include a connecting channel 1101b located between the first chamber 1101a and the second chamber 1101c, connecting the first chamber 1101a and the second chamber 1101c; the end of the piston portion 121 of the second fixed seat 120 serves as the aforementioned contact portion 1211. When the second fixed seat 120 moves relative to the first fixed seat 110 along the axial direction F1, the end of the piston portion 121 can move relative to the first fixed seat 110 along the axial direction F1 in the connecting channel 1101b to move closer to or away from the second buffer member 140 in the second chamber 1101c. When it moves to the end of the connecting channel 1101b to enter the second chamber 1101c, the end of the piston portion 121 contacts the second buffer member 140 to switch to the second damping stroke S2. In one embodiment, as the second fixed seat 120 moves along the axial direction F1 relative to the first fixed seat 110, the end of the piston portion 121 can extend into or out of the second chamber 1101c along the axial direction F1, thereby contacting or disengaging from the second buffer member 140.

[0088] In one embodiment, see Figures 4 to 6The piston portion 121 may include a first piston segment 121a and a second piston segment 121b connected to the first piston segment 121a and located closer to the first fixed seat 110 relative to the first piston segment 121a. During the movement of the second fixed seat 120 relative to the first fixed seat 110 along the axial direction F1, the first piston segment 121a can move along the axial direction F1 within the first chamber 1101a, and the second piston segment 121b can move along the axial direction F1 within the connecting channel 1101b. The end of the second piston segment 121b is provided with the aforementioned contact portion 1211, and the contact portion 1211 of the second piston segment 121b can extend along the axial direction F1 into the second chamber 1101c to contact the second buffer member 140 or be withdrawn from the second chamber 1101c to disengage from the second buffer member 140.

[0089] In one embodiment, see Figures 4 to 6 In the first radial direction F2, the radial dimensions of the first chamber 1101a and the second chamber 1101c are greater than the radial dimension of the connecting channel 1101b; the radial dimension of the first piston section 121a is less than or equal to the radial dimension of the first chamber 1101a and greater than the radial dimension of the connecting channel 1101b; and the radial dimension of the second piston section 121b is less than or equal to the radial dimension of the connecting channel 1101b. In one embodiment, in the first radial direction F2, the radial dimension of the first buffer member 130 (in the case where the first buffer member 130 has a hollow channel described later, this refers to the outer diameter of the first buffer member 130, not the inner diameter; the same applies to other components) is less than or equal to the radial dimension of the first chamber 1101a and greater than the radial dimension of the connecting channel 1101b; and in the first radial direction F2, the radial dimension of the second buffer member 140 is less than or equal to the radial dimension of the second chamber 1101c and greater than the radial dimension of the connecting channel 1101b. Thus, by appropriately setting the radial dimensions of each chamber and each buffer, the first buffer 130 and the second buffer 140 can be held in the appropriate position in the shock absorption assembly 100 by utilizing the difference in width.

[0090] In one embodiment, see Figures 4 to 6The first buffer 130 has a hollow channel extending axially F1, and the piston portion 121 partially extends through this hollow channel and into the connecting channel 1101b. This facilitates the piston portion 121 extending through the first buffer 130 to interact with the more distant second buffer 140. The radial dimension of the first buffer 130 can be approximately equal to the radial dimension of the first piston segment 121a. In one embodiment, the piston portion 121 further includes a third piston segment 121c connecting the first piston segment 121a and the second piston segment 121b. In the first radial direction F2, the radial dimension of the third piston segment 121c is greater than or equal to the radial dimension of the connecting channel 1101b, and less than or equal to the radial dimension of the hollow channel of the first buffer 130, and thus also less than the radial dimension of the first piston segment 121a. In one embodiment, in the first radial direction F2, the radial dimension of the third piston segment 121c gradually decreases along the direction from the second fixing seat 120 to the first fixing seat 110. Thus, through the transition of the third piston section 121c, the first buffer 130, such as the spring 130a, can be guided to move more orderly on the piston section 121, avoiding undesirable radial displacement or jamming of the spring 130a.

[0091] Among them, see Figure 5 In the embodiment described above, since the radial dimension of the second chamber 1101c in the first radial direction F2 is larger than the radial dimension of the connecting channel 1101b, the second chamber 1101c has a radially extending bottom wall at the end connected to the connecting channel 1101b, and a radially extending top wall at the end opposite to the connecting channel 1101b. Accordingly, the first buffer 130 is held between the end of the second chamber 1101c connected to the connecting channel 1101b and the end of the second chamber 1101c opposite to the connecting channel 1101b, that is, between the bottom wall and the top wall of the second chamber 1101c. In other words, the bottom wall of the second chamber 1101c acts as the aforementioned third stop 1112, and the top wall of the second chamber 1101c acts as the aforementioned fourth stop 1113. See also Figure 6In the embodiment described above, since the radial dimension of the first chamber 1101a in the first radial direction F2 is larger than the radial dimension of the connecting channel 1101b, the first chamber 1101a has a radially extending top wall at the end connected to the connecting channel 1101b. Since the radial dimension of the first piston segment 121a is larger than the radial dimensions of both the first piston segment 121a and the third piston segment 121c, the first piston segment 121a has a step at the end near the second piston segment 121b. Accordingly, the first buffer 130 is held between the end of the first chamber 1101a connected to the connecting channel 1101b and the end of the first piston segment 121a near the second piston segment 121b, i.e., held between the top wall and the step. In other words, the top wall acts as the aforementioned first stop 1111, and the step acts as the aforementioned second stop 1212.

[0092] In the foregoing embodiments, example configurations are provided for achieving the first damping stroke S1 and the second damping stroke S2 ​​by configuring different radial dimensions of each chamber, channel, and piston section. However, this application is not limited thereto. Those skilled in the art will recognize many variations based on this. For example, the first chamber 1101a, the connecting channel 1101b, and the second chamber 1101c in the first radial direction F2 can also have substantially the same radial dimensions. The first chamber 1101a and the connecting channel 1101b, and the connecting channel 1101b and the second chamber 1101c can be separated by partitions with openings in the middle. The piston part 121 can be movably fitted into the inner cavity 1101 in such a way that it can pass through the openings in each partition. Thus, by the piston part 121 extending into and out of the inner cavity 1101, the contact part 1211 of the piston part 121 can extend into the second chamber 1101c along the axial direction F1 to contact the second buffer 140 or be withdrawn from the second chamber 1101c to detach from the contact with the second buffer 140.

[0093] In some embodiments, a guide structure can be configured in the damping assembly 100 to guide the movement of the second fixed seat 120 relative to the first fixed seat 110 along the axial direction F1 within the aforementioned travel distance, and to prevent the second fixed seat 120 from moving beyond the predetermined travel distance or detaching from the first fixed seat 110. In one embodiment, the first fixed seat 110 is provided with a first guide structure 1114, and the second fixed seat 120 is provided with a second guide structure 123. The first fixed seat 110 and the second fixed seat 120 are movably connected by the cooperation of the first guide structure 1114 and the second guide structure 123. The cooperation of the first guide structure 1114 and the second guide structure 123 can limit the movement of the second fixed seat 120 relative to the first fixed seat 110 along the axial direction F1 between a first position P1 and a third position P3, and can prevent the second fixed seat 120 from detaching from the first fixed seat 110. In one embodiment, the first guide structure 1114 includes a first pin 1114a, and the second guide structure 123 includes a groove 123a disposed on the second fixed base 120. The groove 123a extends along the axial direction F1 of the second fixed base 120. The two ends of the first pin 1114a are fixed to the opposite sidewalls of the internal cavity of the first fixed base 110, and the first pin 1114a passes through the groove 123a. As the first pin 1114a slides from the first end to the second end of the groove 123a, the second fixed base 120 moves relative to the first fixed base 110 along the axial direction F1 from a first position P1 to a third position P3.

[0094] In this embodiment, the first buffer 130 and the second buffer 140 are components with a buffering function, which can provide buffering through their own elastic deformation. They can be, for example, elastic buffers or any other form of component with a buffering function. In one embodiment, each of the first buffer 130 and the second buffer 140 may include an elastic block or a spring. The elastic block is a block-shaped elastomer, formed, for example, from a material such as hytrel or rubber. The spring is a helical elastomer, made, for example, from a metal such as stainless steel. In one embodiment, the elastic block may have one or more hollow structures 1401a, such as cavities or holes. By providing an appropriate number and size of hollow structures 1401a, the elasticity of the elastic block can be adjusted. Figures 3 to 9 In the example shown, the first buffer 130 is a spring 130a, and the second buffer 140 is an elastic block 140a, which has three radially through holes as a hollow structure 1401a; Figures 10 to 12In the example shown, the first buffer 130 is a spring 130a, and the second buffer 140 is also a spring 140b; in other examples, the first buffer 130 can also be implemented with an elastic block, which can be, for example, an annular block with a hollow channel, and the piston portion 121 can also extend partially through the hollow channel and into the connecting channel 1101b.

[0095] In one embodiment, the second fixing seat 120 further includes a base portion 122 connected to the end of the piston portion 121 facing away from the first fixing seat 110. The base portion 122 has a boss portion 1221 extending radially outward relative to the end of the piston portion 121 facing away from the first fixing seat 110. The boss portion 1221 may be axially F1 opposite to the end of the first fixing seat 110 facing the second fixing seat 120. In some embodiments, when the second fixing seat 120 moves toward the first fixing seat 110 along the axial direction F1 to the end of its travel stroke, the aforementioned boss portion 1221 will abut against the end of the first fixing seat 110 facing the second fixing seat 120 to produce a bottoming collision and prevent further movement of the second fixing seat 120 toward the first fixing seat 110. In contrast, in other embodiments of this application, see, for example, [see...] Figure 9 and Figure 12 When the second fixed seat 120 moves toward the first fixed seat 110 along the axial direction F1 to the end of its travel stroke, there is a gap between the boss portion 1221 and the end of the first fixed seat 110 facing the second fixed seat 120, and they will not come into contact with each other. Thus, even when the second fixed seat 120 moves toward the first fixed seat 110 along the axial direction F1 to the end of its travel stroke, the boss portion 1221 will not bottom out and collide with the first fixed seat 110, thereby further reducing the possibility of the shock-absorbing assembly bottoming out and impacting.

[0096] In one embodiment, see Figure 1 and Figure 2 A viewing window 1115 may be provided on the first fixed base 110 at a position corresponding to the first buffer member 130. The viewing window 1115 is configured such that the first buffer member 130 is at least partially visible from the outside of the first fixed base 110. In this way, the user can intuitively observe the deformation of the first buffer member 130 inside the shock absorption assembly 100 through the viewing window 1115 from the outside of the shock absorption assembly 100.

[0097] See Figures 7 to 9 , Figures 7 to 9 A cross-sectional view of an example damping assembly 100 incorporating features of the various embodiments described above is provided, showing its second mounting base 120 relative to the first mounting base 110 at a first position P1 to a third position P3. To make the function of the damping assembly 100 clearer, the following will be combined with... Figures 7 to 9 Describe the changes in the example damping component 100 between different states.

[0098] See Figure 7 When the shock absorber 100 is not subjected to any additional external force or is subjected to only a small amount of force, such as when the shock absorber 100 is installed in the vehicle 1000 and the vehicle 1000 is not carrying any object and is not subjected to any external impact, or when the vehicle 1000 carries a suitable amount of object but is not subjected to any external impact, the contact portion 1211 of the second fixing seat 120 in the shock absorber 100 can be in a first position P1 relative to the first fixing seat 110. In this state, the second fixing seat 120 is relatively far away from the first fixing seat 110. The first pin 1114a is located at the first end of the slide groove 123a closer to the first fixing seat 110. Due to the limiting effect of the slide groove 123a on the first pin 1114a, the second fixing seat 120 can be prevented from moving further away from the first fixing seat 110 and detaching from the first fixing seat 110. The first buffer member 130 (i.e., spring 130a), housed in the first chamber 1101a and sandwiched between the second fixing seat 120 and the first fixing seat 110, can be in a freely extended, uncompressed state or in a state of slight compression. The second buffer member 140 (i.e., elastic block 140a), housed in the second chamber 1101c, can be in a freely extended, uncompressed state or in a state of slight compression. The contact portion 1211 of the second fixing seat 120 is located in the connecting channel 1101b and is a certain distance away from the second chamber 1101c and the second buffer member 140 (i.e., elastic block 140a) in the second chamber 1101c, and therefore does not contact the second buffer member 140.

[0099] See Figures 7 to 8When the damping assembly 100 is impacted by an external force, under the action of the external force pressing the second fixed seat 120 against the first fixed seat 110, the second fixed seat 120 moves along the axial direction F1 toward the first fixed seat 110, thereby causing the contact portion 1211 of the second fixed seat 120 to move from the first position P1 to the second position P2 in the connecting channel 1101b. The second position P2 may be the position at the junction of the connecting channel 1101b and the second chamber 1101c. The first pin 1114a moves from the first end toward the second end in the slide groove 123a. During the first damping stroke S1 of the contact portion 1211 moving from the first position P1 to the second position P2, the first buffer member 130 is gradually compressed, thereby providing a first force (the elastic restoring force of the spring 130a) between the first fixed seat 110 and the second fixed seat 120 to drive them away from each other. During the first damping stroke S1, before the contact portion 1211 reaches the second position P2, the contact portion 1211 does not contact the second buffer member 140, and therefore the first fixed seat 110 and the second fixed seat 120 are not buffered by the second buffer member 140. When the contact portion 1211 reaches the second position P2, the first pin 1114a is located between the first end and the second end in the slide groove 123a; the contact portion 1211 changes from a state of not contacting the second buffer member 140 to a state of contacting the second buffer member 140, and correspondingly, the second fixed seat 120 changes from the first damping stroke S1 to the second damping stroke S2.

[0100] See Figures 8 to 9 Subsequently, under the further action of external force, the second fixed seat 120 can continue to move along the axial direction F1 toward the first fixed seat 110, thereby causing the contact portion 1211 of the second fixed seat 120 to extend into the second chamber 1101c and move from the second position P2 to the third position P3. During the second damping stroke S2 ​​of the contact portion 1211 moving from the second position P2 to the third position P3, the first buffer member 130 continues to be compressed, thereby continuing to provide a first force between the first fixed seat 110 and the second fixed seat 120 to drive them away from each other. At the same time, the contact portion 1211 contacts and squeezes the second buffer member 140 in the second chamber 1101c, and the second buffer member 140 is also gradually compressed, thereby the second buffer member 140 also provides a second force (elastic restoring force of the elastic block 140a) between the first fixed seat 110 and the second fixed seat 120 to drive them away from each other. Thus, during the second damping stroke S2, the first fixed seat 110 and the second fixed seat 120 are subjected to the dual buffering effect of the first buffer 130 and the second buffer 140, which can more effectively prevent the second fixed seat 120 from moving toward the first fixed seat 110 to the third position P3 and hitting the bottom.

[0101] See Figure 9When the external force is large enough, the second fixed seat 120 can move to the position closest to the first fixed seat 110, that is, the contact portion 1211 of the second fixed seat 120 can move to the third position P3. When the contact portion 1211 reaches the third position P3, the second fixed seat 120 is at the end of its travel stroke (that is, at the end of the second damping stroke S2) and touches the bottom. The first pin 1114a is at the second end of the slide groove 123a, which is farther away from the first fixed seat 110. Because the slide groove 123a limits the first pin 1114a, the second fixed seat 120 is prevented from getting closer to the first fixed seat 110. See also Figure 9 As can be seen in this example, when the shock absorber 100 touches the bottom at the third position P3, there is a gap between the boss 1221 and the end of the first fixing seat 110 facing the second fixing seat 120, and they do not contact each other, thereby reducing the occurrence of component impact when the shock absorber 100 touches the bottom.

[0102] See Figures 10 to 12 , Figures 10 to 12 Another example of a damping assembly 100 incorporating features of the above embodiments is shown in a cross-sectional view of its second mounting base 120 relative to the first mounting base 110 at a first position P1 to a third position P3. Figures 10 to 12 In this configuration, except for the second buffer 140, which is replaced by a spring 140b instead of an elastic block 140a, all other components are identical to those in the previous configuration. Figures 7 to 9 The same as in the middle, and Figures 10 to 12 The spring 140b in the middle can be used with Figures 7 to 9 The elastic block 140a in the middle is compressed in a similar manner. Therefore, Figures 10 to 12 The variation process of the intermediate damping component 100 between different states can be similarly referred to... Figures 7 to 9 The changes in the intermediate damping component 100 between different states will not be elaborated here.

[0103] This application also provides a carrier 1000, which, as described above, can be any type of carrying tool, such as a stroller, cargo cart, trailer, or pet stroller. Depending on the type of carrier 1000, it can be composed of multiple different components. The carrier 1000 may include at least a first component and a second component, and includes a shock-absorbing assembly 100 according to any of the foregoing embodiments. A first mounting base 110 in the shock-absorbing assembly 100 connects to the first component, and a second mounting base 120 in the shock-absorbing assembly 100 connects to the second component. Thus, the shock-absorbing assembly 100 can provide cushioning between any of the first and second components in the carrier 1000.

[0104] By way of example and not limitation, the vehicle 1000 in the embodiments of this application may be a stroller. In one embodiment, see [link to embodiment]. Figures 13 to 15The vehicle 1000 may include: a frame assembly 200, which includes a front wheel frame 210 and a rear wheel frame 220 connected to the front wheel frame 210; a rider assembly 300 connected to the front wheel frame 210; and a seat assembly 400 mounted on the rider assembly 300 or the front wheel frame 210; wherein a first component is one of the rider assembly 300 and the rear wheel frame 220, and a second component is the other of the rider assembly 300 and the rear wheel frame 220. This provides cushioning between the rider assembly 300 and the rear wheel frame 220 of the stroller.

[0105] Among them, see Figures 13 to 15 A front wheel 230 can be mounted on the front wheel frame 210, and a rear wheel 240 can be mounted on the rear wheel frame 220 to facilitate the movement of the vehicle 1000. A rider assembly 300 is provided for a user to grip and push or pull the vehicle 1000. In some embodiments, the rider assembly 300 may have a retractable structure. The seat assembly 400 may include a surround frame 410, which may be a circumferentially closed frame, such as a rectangular frame, an elliptical frame, a pentagonal frame, etc. A seat portion may be mounted to the surround frame 410 for a child or pet to sit on. In some embodiments, the seat assembly 400 may further include a seat back support 420 connected to the surround frame 410, and a seat cover may be fitted onto the seat back support 420 to form a seat for sitting. In some embodiments, the seat back support 420 may be pivotally connected to the surround frame 410 to form an adjustable-angle seat back support 420. In some embodiments, the seat assembly 400 may further include a seat back adjustment handle 421. By pulling the seat back adjustment handle 421, the seat back support 420 can be unlocked to allow adjustment of the tilt angle of the seat back support 420, thereby adjusting the seat back angle. In some embodiments, armrests 430 may be mounted on the rods on both sides of the enclosure frame 410, for example via mounting seats, to facilitate grabbing by children sitting in the seat. In some embodiments, a canopy bracket 440 may be detachably mounted on the rods on both sides of the enclosure frame 410, allowing a canopy cloth (not shown) to be covered over the enclosure frame 410, thereby providing functions such as mosquito protection and sun shading. In some embodiments, the rider assembly 300 may be provided with a seat assembly mounting seat 310 for detachably mounting the seat assembly 400 in the seat assembly mounting seat 310.

[0106] In some embodiments, see Figures 13 to 15The driver assembly 300 may be provided with a protrusion 320, and the second fixing seat 120 of the shock absorber assembly 100 is provided with a retraction hook 125 at the end away from the first fixing seat 110. When the vehicle 1000 is retracted, the retraction hook 125 can engage with the protrusion 320. By means of the cooperation between the retraction hook 125 and the protrusion 320, the vehicle 1000 can be kept in the retracted state.

[0107] In some embodiments, the damping assembly 100 can be movably connected between the first component and the second component via pins at both ends. In one embodiment, the first fixing seat 110 has a second pin 1116 at its end away from the second fixing seat 120, and the first fixing seat 110 is pivotally connected to the first component via the second pin 1116. The second fixing seat 120 has a third pin 124 at its end away from the first fixing seat 110, and the second fixing seat 120 is pivotally connected to the second component via the third pin 124. For example, see... Figures 13 to 15 Taking the shock absorber 100 connected between the rider assembly 300 and the rear wheel carrier 220 as an example, the first mounting bracket 110 can be pivotally connected to the rider assembly 300 via the second pin 1116. The second mounting bracket 120 can be pivotally connected to the rear wheel carrier 220 via the third pin 124.

[0108] In one embodiment, see Figures 13 to 15 The carrier 1000 also includes a basket tube 500, which can be positioned approximately horizontally in use, thus creating a storage space under the seat. Users can place items in this storage space while using the carrier 1000 to reduce carrying burden. A first fixed seat 110 or a second fixed seat 120 can be movably connected to the basket tube 500. In one embodiment, the carrier 1000 also includes a linkage 510. The first fixed seat 110 or the second fixed seat 120 is movably connected to the basket tube 500 via the linkage 510, wherein one end of the linkage 510 is pivotally connected to the basket tube 500, and the other end of the linkage 510 is pivotally connected to the first fixed seat 110 or the second fixed seat 120, facilitating the synchronous folding of the entire carrier 1000. In one embodiment, when the aforementioned first guide structure 1114 is provided on the first fixed seat 110, the other end of the linkage 510 can be pivotally connected to the first fixed seat 110 via the first guide structure 1114.

[0109] The first fixed seat 110 or the second fixed seat 120 is movably connected to the rider assembly 300 and the rear wheel frame 220, as well as to the basket tube 500, so that these components can be folded together when the vehicle 1000 is folded, thereby facilitating the folding of the vehicle 1000.

[0110] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0111] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A shock-absorbing component, characterized in that, include: First fixed seat; The second fixed seat is movably connected to the first fixed seat and can move relative to the first fixed seat along the axial direction of the shock-absorbing assembly; A first buffer is disposed between the first fixed base and the second fixed base; as well as The second buffer is disposed on the first fixed base or the second fixed base; Wherein, the travel of the second fixed seat relative to the first fixed seat along the axial direction includes a first damping travel and a second damping travel following the first damping travel; in the first damping travel, the first buffer provides a damping effect between the first fixed seat and the second fixed seat, while the second buffer does not provide a damping effect between the first fixed seat and the second fixed seat; During the second damping stroke, both the first and second buffer components provide a buffering effect between the first and second fixed seats.

2. The shock absorption component according to claim 1, characterized in that, In the axial direction, the second mounting base is closer to the first mounting base during the second damping stroke than during the first damping stroke.

3. The shock absorption component according to claim 2, characterized in that, During the first damping stroke, one of the first fixed seat and the second fixed seat contacts the first buffer but not the second buffer, and during the second damping stroke, the same one of the first fixed seat and the second fixed seat contacts both the first buffer and the second buffer.

4. The shock absorption component according to claim 3, characterized in that, The first mounting base has an internal cavity extending along the axial direction, the internal cavity including a first chamber and a second chamber disposed along the axial direction of the damping assembly, the first buffer being disposed in the first chamber and the second buffer being disposed in the second chamber, the second chamber being further away from the second mounting base in the axial direction than the first chamber.

5. The shock absorption component according to claim 4, characterized in that, The internal cavity also includes a connecting channel connecting the first chamber and the second chamber. The second fixed seat includes a piston portion. The second fixed seat is movable relative to the first fixed seat along the axial direction. The end of the piston portion is movable relative to the first fixed seat along the axial direction in the connecting channel to contact the second buffer member during the second damping stroke.

6. The shock absorption component according to claim 5, characterized in that, During the movement of the second fixed seat relative to the first fixed seat along the axial direction, the end of the piston portion can extend into or out of the second chamber along the axial direction.

7. The shock absorption component according to claim 6, characterized in that, The piston portion includes a first piston section and a second piston section connected to the first piston section and closer to the first fixed seat relative to the first piston section; During the movement of the second fixed seat relative to the first fixed seat along the axial direction, the first piston segment can move along the axial direction in the first chamber, and the second piston segment can move along the axial direction in the connecting channel. The end of the second piston segment is provided with a contact portion, and the contact portion of the second piston segment can extend along the axial direction into the second chamber to contact the second buffer or be withdrawn from the second chamber to disengage from the contact with the second buffer.

8. The shock-absorbing component according to claim 7, characterized in that, In the first radial direction, The radial dimensions of the first chamber and the second chamber are greater than the radial dimension of the connecting channel; The radial dimension of the first piston section is less than or equal to the radial dimension of the first chamber, and greater than the radial dimension of the connecting channel; and The radial dimension of the second piston section is less than or equal to the radial dimension of the connecting channel.

9. The shock absorption component according to claim 4, characterized in that, The first fixed base is provided with a first guide structure, and the second fixed base is provided with a second guide structure. The first fixed base and the second fixed base are movably connected through the cooperation of the first guide structure and the second guide structure. The cooperation between the first guide structure and the second guide structure restricts the movement of the second fixed seat relative to the first fixed seat along the axial direction between the first position and the third position, and prevents the second fixed seat from detaching from the first fixed seat.

10. A vehicle, characterized in that, It includes a first component and a second component, and includes a shock-absorbing assembly according to any one of claims 1 to 9, wherein, The first mounting base in the shock absorption assembly is connected to the first component; and The second mounting bracket in the shock absorption assembly is connected to the second component.

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