Damping connecting support and monocycle

By designing shock-absorbing connection brackets for the frame, wheels, linkage assembly, and elastic components, the problems of high machining precision and rapid wear of the slide rails in unicycle shock-absorbing structures were solved, achieving effective shock absorption and comfortable riding under complex road conditions, and reducing manufacturing costs.

CN224159381UActive Publication Date: 2026-04-24GUANGZHOU COYOTE INTELLIGENT EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU COYOTE INTELLIGENT EQUIP CO LTD
Filing Date
2025-06-12
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

The existing shock absorption structure of unicycles requires high precision machining, which leads to increased manufacturing costs, rapid wear of the slide rails, and rapid consumption of lubricant. This affects the smoothness of the shock absorption stroke and user experience, and it cannot effectively absorb and disperse vibration energy under complex road conditions.

Method used

The shock-absorbing connecting bracket, which includes a frame, wheels, linkage assembly and elastic component, is adopted. The linkage module design enables elastic rotation, and the elastic component absorbs and disperses vibration energy, preventing the frame from tilting forward or backward and reducing the space occupied by the slide rail structure.

Benefits of technology

It improves riding comfort, lowers the frame height, enhances shock absorption, adapts to complex road conditions, and reduces manufacturing costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of vehicles, and particularly relates to a damping connecting support and a wheelbarrow, the damping connecting support comprises a frame, a wheel, connecting rod assemblies and elastic assemblies, and the connecting rod assemblies are arranged on the two sides of the wheel; the connecting rod assembly comprises a first connecting rod module and a second connecting rod module, the upper end of the first connecting rod module is rotationally hinged to the frame, the lower end of the first connecting rod module is rotationally hinged to the upper end of the second connecting rod module through a connecting component, and the lower end of the second connecting rod module is hinged to the axis of the wheel; the first connecting rod module and the second connecting rod module are connected with a frame and wheels through the first connecting rod module and the second connecting rod module, and vibration energy is fully absorbed and dispersed through the elastic assembly. The vehicle frame is prevented from inclining forwards or backwards in the damping process when the vehicle deals with complex road conditions and large impact, the height of the vehicle frame is reduced, and the gravity center of the vehicle is lower.
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Description

Technical Field

[0001] This utility model belongs to the field of transportation technology, specifically relating to a shock-absorbing connecting bracket and a unicycle. Background Technology

[0002] With the continuous development of society, unicycles, as a convenient means of transportation, are increasingly favored by consumers. However, there are some problems with the shock absorption structure of existing unicycles that urgently need to be solved during use.

[0003] Traditional unicycle shock absorption structures often employ a combination of slide rails and shock absorbers, requiring extremely high precision in the machining of components such as the slide rails and sliders. This leads to a significant increase in manufacturing costs. Furthermore, the slide rails experience substantial wear during sliding, resulting in rapid lubrication consumption. Once the lubricant fails, problems such as abnormal noise and blockage occur, affecting not only the smoothness of the shock absorption stroke but also greatly reducing user comfort. While existing technology (patent CN115923979A) discloses a unicycle based on a joint support structure that filters vibrations generated during unicycle riding through an elastic connection between the swing arm and the support arm, this solution still has limitations: the elastic connection structure between the swing arm and the support arm is relatively simple. When dealing with complex road conditions and large impacts, it cannot simultaneously enable the entire linkage mechanism to rotate elastically, failing to fully absorb and disperse vibration energy, thus affecting riding comfort.

[0004] Given the shortcomings of the existing technology, there is an urgent need for a shock-absorbing connection bracket that can effectively solve the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, this utility model provides a shock-absorbing connecting bracket and a unicycle to solve the problems of the prior art.

[0006] One embodiment of this utility model provides a shock-absorbing connection bracket, including a frame, a wheel, a linkage assembly, and an elastic assembly, wherein the linkage assembly is disposed on both sides of the wheel;

[0007] The linkage assembly includes a first linkage module and a second linkage module. The upper end of the first linkage module is rotatably hinged to the vehicle frame, and the lower end of the first linkage module is rotatably hinged to the upper end of the second linkage module through a connecting member. The lower end of the second linkage module is hingedly mounted to the axle of the wheel.

[0008] The two ends of the elastic component are respectively hinged to the first link module and the second link module, and the elastic component is configured to reduce the impact transmitted from the wheel to the frame.

[0009] The first linkage module includes a first connecting rod and a first stabilizer rod. The first connecting rod and the first stabilizer rod are respectively rotatably hinged between the vehicle frame and the connecting member. The line connecting the hinge points at both ends of the first connecting rod is parallel to the line connecting the hinge points at both ends of the first stabilizer rod.

[0010] The second linkage module includes a second connecting rod and a second stabilizing rod. The second connecting rod and the second stabilizing rod are respectively rotatably hinged between the connecting member and the wheel. The line connecting the hinge points at both ends of the second connecting rod is parallel to the line connecting the hinge points at both ends of the second stabilizing rod.

[0011] In one embodiment of this utility model, a mounting base is also included, which is mounted on the axle of the wheel by fasteners;

[0012] The lower ends of the second connecting rod and the second stabilizing rod are respectively located at both ends of the mounting base.

[0013] In one embodiment of this utility model, a first connecting shaft is provided between the two first connecting rods, and a second connecting shaft is provided between the two second connecting rods;

[0014] The upper end of the elastic component is rotatably hinged to the first connecting shaft, and the lower end of the elastic component is rotatably hinged to the second connecting shaft.

[0015] In one embodiment of this utility model, the connecting member includes a first synchronizing element and two supporting arms, the two supporting arms being fixedly connected by the first synchronizing element, and the connecting member having a U-shaped structure.

[0016] In one embodiment of this utility model, the first connecting rod and the second connecting rod are hinged to the first synchronizing member via a first pivot; the first stabilizing rod and the second stabilizing rod are hinged to the support arm via a second pivot.

[0017] In one embodiment of this utility model, the connecting component includes a second synchronizing element, a third synchronizing element, and two support plates. The support plates are V-shaped, and the second synchronizing element and the third synchronizing element are respectively fixedly connected to the top ends of the two support plates.

[0018] In one embodiment of this utility model, the first connecting rod is hinged to the second synchronizing member via a third pivot, the second connecting rod is hinged to the third synchronizing member via a fourth pivot, and the first stabilizing rod and the second stabilizing rod are respectively hinged to the support plate via a fifth pivot.

[0019] In one embodiment of this utility model, the elastic component includes:

[0020] The adjusting nut has an internal thread section on its inner side;

[0021] The damping cylinder body has an external thread section on its outer side wall that is threaded to the internal thread section, and the damping cylinder body is rotatably connected to the first connecting shaft.

[0022] A piston rod, at least partially inserted into the interior of the damping cylinder and slidably connected to the damping cylinder, is rotatably connected to the second connecting shaft; and

[0023] A spring is sleeved on the outside of the damping cylinder, with one end abutting against the fixed seat on the piston rod and the other end abutting against the adjusting nut.

[0024] One embodiment of this utility model also discloses a unicycle, including a shock-absorbing connecting bracket as described in any of the above embodiments, and further including a battery compartment and a pedal. The battery compartment is disposed on both sides of the wheel via the frame, or the battery compartment is disposed inside the frame; the pedal is disposed on the battery compartment or the frame.

[0025] The shock-absorbing connecting bracket and unicycle provided by this utility model can achieve the following technical effects:

[0026] 1. The entire linkage mechanism enables elastic rotation, and the design of the linkage module ensures that the frame is parallel to the wheel during shock absorption, preventing the unicycle from tilting forward or backward when dealing with complex road conditions and large impacts. At the same time, the elastic components fully absorb and disperse vibration energy, ensuring riding comfort.

[0027] 2. The method of connecting the frame and wheels through the linkage assembly provides a large adjustment range for the shock absorption stroke. Furthermore, the absence of a sliding rail structure in the middle of the connecting bracket reduces the height of the frame, lowers the center of gravity of the vehicle, and makes riding more comfortable. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 the structures shown in these drawings without creative effort.

[0029] Figure 1 This diagram illustrates the application of the shock-absorbing connecting bracket of embodiments 1-2 of this utility model to a unicycle structure.

[0030] Figure 2This diagram illustrates the structure of the shock-absorbing connecting bracket in embodiments 1-2 of this utility model.

[0031] Figure 3 This is a schematic diagram showing the structure of the connecting rod assembly in embodiments 1-2 of this utility model;

[0032] Figure 4 This diagram shows the structural schematic of the connecting components in embodiments 1-2 of this utility model.

[0033] Figure 5 This is a schematic diagram showing the application of the shock-absorbing connecting bracket of Embodiment 3 of this utility model in a unicycle structure;

[0034] Figure 6 This is a schematic diagram of the shock-absorbing connection bracket structure of Embodiment 3 of this utility model;

[0035] Figure 7 This is a schematic diagram of the linkage assembly structure of Embodiment 3 of the present invention;

[0036] Figure 8 This diagram shows the structural diagram of the connecting component in Embodiment 3 of the present invention.

[0037] Figure 9 This is a schematic diagram showing the structure of the elastic component of this utility model.

[0038] The symbols in the attached image are explained as follows:

[0039] 1-Frame;

[0040] 2-Wheel;

[0041] 3-First link module; 31-First connecting rod; 32-First stabilizer bar; 33-First connecting shaft;

[0042] 4-Second link module; 41-Second connecting rod; 42-Second stabilizer bar; 43-Second connecting shaft;

[0043] 5-Elastic component; 51-Adjusting nut; 52-Damping cylinder; 53-Piston rod; 54-Spring;

[0044] 6-Connecting component; 61-First synchronizing element; 611-First rotating shaft; 62-Support arm; 621-Second rotating shaft; 63-Second synchronizing element; 631-Third rotating shaft; 64-Third synchronizing element; 641-Fourth rotating shaft; 65-Support plate; 651-Fifth rotating shaft;

[0045] 7-Mounting base. Detailed Implementation

[0046] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0047] Example 1

[0048] Please refer to Figure 1-4 and Figure 9 One embodiment of this utility model provides a shock-absorbing connection bracket, including a frame 1, a wheel 2, a connecting rod assembly and an elastic component 5, wherein the connecting rod assembly is disposed on both sides of the wheel 2;

[0049] The linkage assembly includes a first linkage module 3 and a second linkage module 4. The upper end of the first linkage module 3 is rotatably hinged to the frame 1, and the lower end of the first linkage module 3 is rotatably hinged to the upper end of the second linkage module 4 through a connecting member 6. The lower end of the second linkage module 4 is hingedly mounted to the axle of the wheel 2.

[0050] The two ends of the elastic component 5 are respectively hinged to the first link module 3 and the second link module 4. The elastic component 5 is configured to reduce the impact transmitted from the wheel 2 to the frame 1.

[0051] The first linkage module 3 includes a first connecting rod 31 and a first stabilizing rod 32. The first connecting rod 31 and the first stabilizing rod 32 are respectively rotatably hinged between the vehicle frame 1 and the connecting member 6. The line connecting the hinge points at both ends of the first connecting rod 31 is parallel to the line connecting the hinge points at both ends of the first stabilizing rod 32.

[0052] The second linkage module 4 includes a second connecting rod 41 and a second stabilizing rod 42. The second connecting rod 41 and the second stabilizing rod 42 are respectively rotatably hinged between the connecting member 6 and the wheel 2. The line connecting the hinge points at both ends of the second connecting rod 41 is parallel to the line connecting the hinge points at both ends of the second stabilizing rod 42.

[0053] It also includes a mounting base 7, which is mounted on the axle of the wheel 2 by fasteners;

[0054] The lower ends of the second connecting rod 41 and the second stabilizing rod 42 are respectively disposed at both ends of the mounting base 7.

[0055] Understandably, in this embodiment, a hub motor is provided inside the wheel, which is used to drive the wheel 2 to move. The mounting base 7 is mounted on the shaft of the hub motor, and the fasteners can be any one of bolts, screws, rivets or fixed welding points.

[0056] For details, please refer to Figure 2 and Figure 6 In the shock-absorbing connecting bracket of this embodiment, the upper end of the first connecting rod 31 is hinged to the frame 1 to form hinge point A1, the lower end of the first connecting rod 31 is hinged to the connecting member 6 to form hinge point A2, the upper end of the first stabilizing rod 32 is hinged to the frame 1 to form hinge point B1, the lower end of the first stabilizing rod 32 is hinged to the connecting member 6 to form hinge point B2, and the line connecting hinge point A1 and hinge point B1 is parallel to the line connecting hinge point A2 and hinge point B2, so that the first connecting rod module 3 forms a parallelogram structure.

[0057] Similarly, the upper end of the second connecting rod 41 is hinged to the connecting member 6 to form hinge point A3, the lower end of the second connecting rod 41 is hinged to the mounting base 7 to form hinge point A4, the upper end of the second stabilizing rod 42 is hinged to the connecting member 6 to form hinge point B3, the lower end of the second stabilizing rod 42 is hinged to the mounting base 7 to form hinge point B4, and the line connecting hinge point A3 and hinge point B3 is parallel to the line connecting hinge point A4 and hinge point B4, so that the second connecting rod module 4 forms a parallelogram structure.

[0058] In practical applications, hinge points A2 and A3 can be set on the same rotation axis or on two independent rotation axes, and hinge points B2 and B3 can be set on the same rotation axis or on two independent rotation axes.

[0059] The following technical effects can be achieved by this implementation:

[0060] The entire linkage mechanism enables elastic rotation, and the design of the linkage module ensures that the frame 1 is parallel to the wheel 2 during the shock absorption process, preventing the frame 1 from tilting forward or backward when the unicycle is dealing with complex road conditions and large impacts. At the same time, the elastic component 5 fully absorbs and disperses vibration energy to ensure riding comfort.

[0061] By connecting the frame 1 and the wheel 2 with a linkage assembly, the adjustment range of the shock absorption stroke is large, and there is no sliding rail structure in the middle of the connecting bracket that takes up space, which can lower the height of the frame 1, making the center of gravity of the vehicle lower and more conducive to riding.

[0062] Please refer to Figure 3 In one application scenario of this embodiment, a first connecting shaft 33 is provided between the two first connecting rods 31, and a second connecting shaft 43 is provided between the two second connecting rods 41;

[0063] The upper end of the elastic component 5 is rotatably hinged to the first connecting shaft 33, and the lower end of the elastic component 5 is rotatably hinged to the second connecting shaft 43.

[0064] Understandably, in the shock-absorbing connecting bracket of this embodiment, the elastic component 5 is installed between the first connecting shaft 33 and the second connecting shaft 43 by means of rotational hinge, so as to ensure that the elastic component 5 can rotate accordingly with the movement of the first connecting rod module 3 and the second connecting rod module 4. When the unicycle travels on a bumpy road, the impact force is transmitted to the second connecting rod 41 through the wheel 2, and then to the elastic component 5 through the second connecting shaft 43. The resistance generated by the internal structure and medium of the elastic component 5 in the opposite direction of movement converts the impact kinetic energy into other forms of energy consumption, thereby reducing the impact force transmitted to the first connecting shaft 33.

[0065] Example 2

[0066] Please refer to Figure 1-4 In one embodiment of this utility model, hinge point A2 and hinge point A3 are disposed on the same rotation axis, and hinge point B2 and hinge point B3 are disposed on the same rotation axis.

[0067] Specifically, the connecting member 6 includes a first synchronizing element 61 and two supporting arms 62. The two supporting arms 62 are fixedly connected by the first synchronizing element 61, and the connecting member 6 has a U-shaped structure.

[0068] The first connecting rod 31 and the second connecting rod 41 are hinged to the first synchronizing member 61 via the first pivot 611; the first stabilizing rod 32 and the second stabilizing rod 42 are hinged to the support arm 62 via the second pivot 621.

[0069] Understandably, in any link assembly of the shock-absorbing connecting bracket in this embodiment, the end of the first synchronizing member 61 is provided with a threaded mounting hole; the lower end of the first connecting rod 31 and the upper end of the second connecting rod 41 are both provided with a first connecting hole, the lower end of the first connecting rod 31 and the upper end of the second connecting rod 41 are rotatably mounted to one end of the first rotating shaft through the first connecting hole, the first rotating shaft serves as the rotation axis of the first connecting rod 31 and the second connecting rod 41, and the other end of the first rotating shaft is fixedly installed in the threaded mounting hole at the end of the first synchronizing member 61;

[0070] The end of the support arm 62 is provided with a threaded mounting hole; the lower end of the first stabilizer 32 and the upper end of the second stabilizer 42 are both provided with a second connecting hole. The first stabilizer 32 and the second stabilizer 42 are installed at one end of the same second rotating shaft 621 through the second connecting hole. The second rotating shaft 621 serves as the rotation axis of the first stabilizer 32 and the second stabilizer 42, and the other end of the second rotating shaft 621 is fixedly installed in the threaded mounting hole at the end of the support arm 62.

[0071] In this embodiment, the first connecting rod 31 and the first stabilizing rod 32 are respectively connected between the frame 1 and the connecting member 6 to form a parallelogram frame structure. When the first connecting rod 31 rotates, the frame structure is used to maintain the relative stability between the frame 1 and the connecting member 6 and prevent the frame 1 from tilting forward or backward.

[0072] The second connecting rod 41 and the second stabilizing rod 42 are respectively connected between the connecting member 6 and the mounting base 7 to form a rectangular frame structure. When the second connecting rod 41 rotates, the frame structure is used to maintain the relative stability between the connecting member 6 and the mounting base 7 to prevent the frame 1 from tilting forward or backward.

[0073] Meanwhile, by connecting the first connecting rod 31 and the second connecting rod 41 simultaneously through the first rotating shaft, and by connecting the first stabilizing rod 32 and the second stabilizing rod 42 simultaneously through the second rotating shaft 621, the assembly process of the connecting rod assembly can be simplified, making it suitable for the rapid installation of the shock-absorbing connecting bracket, and also reducing the overall weight of the shock-absorbing connecting bracket.

[0074] Example 3

[0075] Please refer to Figures 5-8 In one embodiment of this utility model, hinge points A2 and A3 are arranged on two independent rotation axes, and hinge points B2 and B3 are arranged on two independent rotation axes.

[0076] Specifically, the connecting member 6 includes a second synchronizing member 63, a third synchronizing member 64, and two support plates 65. The support plates 65 are V-shaped, and the second synchronizing member 63 and the third synchronizing member 64 are respectively fixedly connected to the top ends of the two support plates 65.

[0077] The first connecting rod 31 is hinged to the second synchronizing member 63 via the third pivot 631, the second connecting rod 41 is hinged to the third synchronizing member 64 via the fourth pivot 641, and the first stabilizing rod 32 and the second stabilizing rod 42 are respectively hinged to the support plate 65 via the fifth pivot 651.

[0078] Understandably, in any link assembly of the shock-absorbing connecting bracket in this embodiment, the ends of the second synchronizing member 63 and the third synchronizing member 64 are provided with threaded mounting holes; the lower end of the first connecting rod 31 and the upper end of the second connecting rod 41 are provided with first connecting holes. The first connecting rod 31 is rotatably mounted to one end of the third rotating shaft 631 through the first connecting hole, and the other end of the third rotating shaft 631 is fixedly mounted in the threaded mounting hole at the end of the second synchronizing member 63. The third rotating shaft 631 is the rotation axis of the first connecting rod 31; the second connecting rod 41 is rotatably mounted to one end of the fourth rotating shaft 641 through the first connecting hole, and the other end of the fourth rotating shaft 641 is fixedly mounted in the threaded mounting hole at the end of the third synchronizing member 64. The fourth rotating shaft 641 is the rotation axis of the second connecting rod 41.

[0079] The support plate 65 has two adjacent threaded mounting holes at its end; the lower end of the first stabilizer 32 and the upper end of the second stabilizer 42 are both provided with second connecting holes. The first stabilizer 32 is rotatably mounted to one end of the fifth rotating shaft 651 through the second connecting hole, and the first stabilizer 32 is mounted on one of the second connecting holes of the support plate 65 through the fifth rotating shaft 651; the second stabilizer 42 is rotatably mounted to one end of the fifth rotating shaft 651 through the second connecting hole, and the second stabilizer 42 is mounted on the other second connecting hole of the support plate 65 through the fifth rotating shaft 651; wherein, the two fifth rotating shafts 651 serve as the rotation axes of the first stabilizer 32 and the second stabilizer 42, respectively.

[0080] In this embodiment, the first connecting rod 31 and the first stabilizing rod 32 are respectively connected between the frame 1 and the connecting member 6 to form a parallelogram frame structure. When the first connecting rod 31 rotates, the frame structure is used to maintain the relative stability between the frame 1 and the connecting member 6 and prevent the frame 1 from tilting forward or backward.

[0081] The second connecting rod 41 and the second stabilizing rod 42 are respectively connected between the connecting member 6 and the mounting base 7 to form a rectangular frame structure. When the second connecting rod 41 rotates, the frame structure is used to maintain the relative stability between the connecting member 6 and the mounting base 7 to prevent the frame 1 from tilting forward or backward.

[0082] Meanwhile, the first connecting rod 31 and the second connecting rod 41 are connected to the second synchronizing element 63 and the third synchronizing element 64 respectively through the third rotating shaft 631 and the fourth rotating shaft 641. The first stabilizing rod 32 and the second stabilizing rod 42 are connected to the support plate 65 respectively through the fifth rotating shaft 651. This can reduce the shear force on the aforementioned rotating shafts and prevent the rotating shafts from breaking or deforming. It is suitable for high-strength or heavy-load shock-absorbing connecting brackets and unicycles.

[0083] Example 4

[0084] Please refer to Figure 9 In one embodiment of this utility model, the elastic component 5 includes:

[0085] Adjusting nut 51, with an internal thread section on its inner side;

[0086] The damping cylinder body 52 has an external thread section on its outer side wall that is threaded to the internal thread section, and the damping cylinder body 52 is rotatably connected to the first connecting shaft 33.

[0087] The piston rod 53 is at least partially inserted into the damping cylinder 52 and slidably connected to the damping cylinder 52, and the piston rod 53 is rotatably connected to the second connecting shaft 43; and

[0088] Spring 54 is sleeved on the outside of the damping cylinder 52, with one end abutting against the fixed seat on the piston rod 53 and the other end abutting against the adjusting nut 51.

[0089] Understandably, when the unicycle equipped with the shock-absorbing connecting bracket of this embodiment rotates relative to the first link module 3 and the second link module 4 due to road conditions during driving, the piston rod 53 can slide flexibly within the damping cylinder 52, transmitting vibrations to the inside of the damping component. The spring 54 is located on the outside of the damping cylinder 52, with one end tightly abutting against the fixed seat on the piston rod 53, and the other end is adjusted by the nut 51. The adjusting nut 51 can be adjusted according to actual needs to achieve different shock absorption effects. For example, if the elastic stroke of the spring 54 is longer, the shock absorption effect is more obvious, but the vertical movement of the frame 1 is larger, making it suitable for relatively flat road sections; if the elastic stroke of the spring 54 is shorter, the shock absorption effect is weaker, but the vertical movement of the frame 1 is smaller, making it suitable for more bumpy road sections.

[0090] In this embodiment, the elastic component 5 plays a crucial role in the actual operation of the unicycle. When encountering slight road unevenness, the spring 54 provides initial cushioning by absorbing some vibration energy through its elastic deformation. At this time, the piston rod 53 slides slightly within the damping cylinder 52 and absorbs the impact force released by the spring 54 through the damping medium within the damping cylinder 52. The two work together to achieve shock absorption and avoid affecting the vehicle's handling on uneven roads.

[0091] Example 5

[0092] One embodiment of this utility model also discloses a unicycle, including a shock-absorbing connecting bracket as described in any of the above embodiments.

[0093] In this embodiment, the unicycle also includes a battery compartment and a pedal. The battery compartment is disposed on both sides of the wheel 2 via the frame 1, or the battery compartment is disposed inside the frame 1; the pedal is disposed on the battery compartment or the frame 1.

[0094] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A shock-absorbing connecting bracket, characterized in that, It includes a frame (1), wheels (2), linkage assemblies and elastic components (5), wherein the linkage assemblies are disposed on both sides of the wheels (2); The linkage assembly includes a first linkage module (3) and a second linkage module (4). The upper end of the first linkage module (3) is rotatably hinged to the frame (1). The lower end of the first linkage module (3) is rotatably hinged to the upper end of the second linkage module (4) through a connecting member (6). The lower end of the second linkage module (4) is hinged to the axle of the wheel (2). The two ends of the elastic component (5) are respectively hinged to the first link module (3) and the second link module (4), and the elastic component (5) is configured to reduce the impact transmitted from the wheel (2) to the frame (1).

2. The shock-absorbing connecting bracket as described in claim 1, characterized in that, The first linkage module (3) includes a first connecting rod (31) and a first stabilizing rod (32). The first connecting rod (31) and the first stabilizing rod (32) are respectively rotatably hinged between the frame (1) and the connecting member (6). The line connecting the hinge points at both ends of the first connecting rod (31) is parallel to the line connecting the hinge points at both ends of the first stabilizing rod (32). The second linkage module (4) includes a second connecting rod (41) and a second stabilizing rod (42). The second connecting rod (41) and the second stabilizing rod (42) are respectively rotatably hinged between the connecting member (6) and the wheel (2). The line connecting the hinge points at both ends of the second connecting rod (41) is parallel to the line connecting the hinge points at both ends of the second stabilizing rod (42).

3. The shock-absorbing connecting bracket as described in claim 2, characterized in that, It also includes a mounting base (7), which is mounted on the axle of the wheel (2) by fasteners; The lower ends of the second connecting rod (41) and the second stabilizing rod (42) are respectively disposed at both ends of the mounting base (7).

4. The shock-absorbing connecting bracket as described in claim 3, characterized in that, A first connecting shaft (33) is provided between the two first connecting rods (31), and a second connecting shaft (43) is provided between the two second connecting rods (41); The upper end of the elastic component (5) is rotatably hinged to the first connecting shaft (33), and the lower end of the elastic component (5) is rotatably hinged to the second connecting shaft (43).

5. The shock-absorbing connecting bracket as described in claim 4, characterized in that, The connecting member (6) includes a first synchronization element (61) and two support arms (62). The two support arms (62) are fixedly connected by the first synchronization element (61). The connecting member (6) has a U-shaped structure.

6. The shock-absorbing connecting bracket as described in claim 5, characterized in that, The first connecting rod (31) and the second connecting rod (41) are hinged to the first synchronizing member (61) via the first pivot (611); the first stabilizing rod (32) and the second stabilizing rod (42) are hinged to the support arm (62) via the second pivot (621).

7. The shock-absorbing connecting bracket as described in claim 4, characterized in that, The connecting member (6) includes a second synchronizing element (63), a third synchronizing element (64), and two support plates (65). The support plates (65) are V-shaped. The second synchronizing element (63) and the third synchronizing element (64) are respectively fixedly connected to the top ends of the two support plates (65).

8. The shock-absorbing connecting bracket as described in claim 7, characterized in that, The first connecting rod (31) is hinged to the second synchronizing member (63) via the third pivot (631), the second connecting rod (41) is hinged to the third synchronizing member (64) via the fourth pivot (641), and the first stabilizing rod (32) and the second stabilizing rod (42) are respectively hinged to the support plate (65) via the fifth pivot (651).

9. The shock-absorbing connecting bracket as described in any one of claims 4-8, characterized in that, The elastic component (5) includes: Adjusting nut (51) has an internal thread section on its inner side; The damping cylinder (52) has an external thread section that is threaded to the internal thread section on its outer side wall, and the damping cylinder (52) is rotatably connected to the first connecting shaft (33). A piston rod (53) is at least partially inserted into the damping cylinder (52) and slidably connected to the damping cylinder (52), and the piston rod (53) is rotatably connected to the second connecting shaft (43); and A spring (54) is sleeved on the outside of the damping cylinder (52), with one end abutting against the fixed seat provided on the piston rod (53) and the other end abutting against the adjusting nut (51).

10. A wheelbarrow, characterized in that, The vehicle includes the shock-absorbing connecting bracket as described in any one of claims 1-9, and also includes a battery compartment and a pedal. The battery compartment is disposed on both sides of the wheel (2) via the frame (1), or the battery compartment is disposed inside the frame (1); the pedal is disposed on the battery compartment or the frame (1).