A response mechanism and a tricycle
By using a swing assembly and a return assembly on the tricycle, and utilizing a buffer spring to provide the return force, the problem of insufficient return force after the tricycle tipps over is solved, achieving rapid uprighting and improved safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MOFANG ZHIXING (SHANGHAI) POWER TECHNOLOGY CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-06-09
AI Technical Summary
The existing tricycles' swaying mechanism has insufficient restoring force after tipping over, resulting in inconvenience for riders and posing safety hazards.
The front and rear frames are connected by a swing assembly and a return assembly. The return assembly includes left and right return assemblies and a linkage. The vehicle body can be quickly straightened through a slide rail and a buffer connector, and the return force is provided by a buffer spring.
It improves the riding convenience and safety of tricycles, and can automatically right itself after tipping over, making driving easier and safer.
Smart Images
Figure CN224335759U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of vehicle technology, and relates to a recovery mechanism, and more particularly to a recovery mechanism and a tricycle. Background Technology
[0002] Tricycles are increasingly being used for commercial and family transportation due to their excellent practicality. While relatively stable at low speeds and in straight lines, they are prone to tipping over when turning, posing a safety hazard. Therefore, improving the flexibility and stability of tricycles has become a major focus for tricycle manufacturers.
[0003] Current tricycle frame swaying technologies (such as patents CN202211053052.6, CN201921355677.1, CN202222313264.5, and CN202222302134.1) mostly employ independent swaying mechanism modules, composed of rubber blocks and rotating shafts. The rotation of the shaft enables relative rotation between the front and rear frames, compressing the rubber blocks during this process. The rubber blocks serve as sway limiters and also provide some shock absorption during compression. However, these technologies have the following drawbacks:
[0004] 1. The compression and deformation of the rubber blocks cannot provide sufficient restoring force. When the user wants to restore the vehicle to an upright position after tilting it, if the restoring force is insufficient, manual force or external assistance such as increasing the vehicle speed is required, which affects the overall riding experience and use.
[0005] 2. It poses certain safety hazards.
[0006] In view of the above-mentioned shortcomings, the designer actively researched and innovated in order to create a new type of recovery mechanism and tricycle, making it more industrially valuable. Utility Model Content
[0007] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a recovery mechanism and a tricycle.
[0008] To achieve the above objectives, the present invention adopts the following technical solution:
[0009] A return mechanism includes a front frame and a rear frame, wherein the front frame and the rear frame are connected by a swing assembly and the swing assembly realizes the relative swinging reciprocating motion of the front and rear frames, and the swing assembly is connected to the rear frame by a return assembly and the return assembly realizes the straightening of the rear frame body.
[0010] The return assembly includes a left return assembly and a right return assembly with the same structure. The rear frame has a left return area and a right return area. Slide rails are connected to both the left and right return areas. The left and right return assemblies slide along their respective slide rails within the left and right return areas, respectively. The left and right return assemblies are connected to the left and right sides of the upper swing linkage rod through left and right linkages, respectively.
[0011] Preferably, in the aforementioned recovery mechanism, the swing assembly includes an upper swing linkage rod and a lower swing linkage rod. The upper side of the rear frame is connected to the upper swing linkage rod, which rotates synchronously with the upper rotating member, via an upper rotating member. The lower side of the rear frame is connected to the lower swing linkage rod, which rotates synchronously with the lower rotating member, via a lower rotating member. The lower swing linkage rod is connected to the front frame and moves synchronously with the front frame. Connecting members are connected between the two ends of the lower and upper swing linkage rods. The lower and upper swing linkage rods are connected by the connecting members and are synchronously swinging with the coaxial upper and lower rotating members as the axis.
[0012] Preferably, in the aforementioned return mechanism, the upper rotating component includes an upper rotating shaft and an upper bearing, the lower rotating component includes a lower rotating shaft and a lower bearing, the upper and lower sides of the rear frame are respectively connected to the upper and lower rotating shafts, the upper and lower rotating shafts are opposite to each other and on the same axis, the upper swing linkage rod is connected to the upper rotating shaft through the upper bearing, and the lower swing linkage rod is connected to the lower rotating shaft through the lower bearing;
[0013] And / or,
[0014] The upper rotating component includes an upper rotating shaft and an upper bearing, and the lower rotating component includes a lower rotating shaft and a lower bearing. The upper bearing and the lower bearing are respectively connected to the upper and lower sides of the rear frame. The upper bearing and the lower bearing are opposite to each other and on the same axis. The upper rotating shaft is movably connected inside the upper bearing. The upper swing linkage rod is connected to the upper rotating shaft. The lower rotating shaft is movably connected inside the lower bearing. The lower swing linkage rod is connected to the lower rotating shaft.
[0015] Preferably, in the recovery mechanism, the connecting member is a buffer connecting member, which includes a damper and a buffer spring. The upper and lower ends of the damper are respectively connected to the upper swing linkage rod and the lower swing linkage rod via locking accessories, and the buffer spring is fitted onto the damper.
[0016] Or it may be a supporting connecting rod.
[0017] Preferably, in the aforementioned recovery mechanism, the upper swing linkage rod, the lower swing linkage rod, and the connecting member form a quadrilateral structure.
[0018] Preferably, in the aforementioned recovery mechanism, a limiting baffle for limiting the amplitude of the sway assembly is connected to the back of the front frame.
[0019] Preferably, in the aforementioned recovery mechanism, the height of the limiting baffle is lower than the bottom surface of the rear frame, and a swing gap is provided between the limiting baffle and the rear frame;
[0020] And / or,
[0021] The rear frame is connected to a limiting fixing plate that contacts the limiting baffle when swaying. The height of the limiting baffle is lower than that of the limiting fixing plate, and there is a swaying gap between the limiting fixing plate and the limiting baffle.
[0022] Preferably, in the aforementioned recovery mechanism, the limiting baffle is welded to the front frame;
[0023] And / or,
[0024] The limit stop is connected to the front frame via a locking device.
[0025] Preferably, in the aforementioned recovery mechanism, the left recovery component includes a sliding baffle and a recovery buffer. The sliding baffle is slidably connected between slide rails, and the recovery buffer is connected between the sliding baffle and the rear frame located within the recovery area. The sliding baffle is connected to the upper swing linkage rod via a corresponding linkage component.
[0026] Preferably, in the aforementioned recovery mechanism, the left and right linkage components have the same structure.
[0027] The left linkage component includes a linkage rod, one end of which is connected to the upper swing linkage rod, and the other end of which is connected to the contact block through the contact block shaft. Under the drive of the corresponding linkage component, the contact block drives its corresponding sliding baffle to slide along the slide rail.
[0028] A tricycle employing a reciprocating mechanism.
[0029] By means of the above solution, this utility model has at least the following advantages:
[0030] This invention significantly improves the riding experience of tiltable tricycles through a swing component and provides frame straightening assistance through a return component, making driving more effortless and convenient. It also makes the tilting function of the tricycle smoother, improving the riding experience, and in the event of an emergency, the vehicle can effectively and autonomously straighten itself, making driving safer and enhancing driving safety to a certain extent.
[0031] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description
[0032] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0033] Figure 1 This is a schematic diagram of the structure of this utility model;
[0034] Figure 2 yes Figure 1 Rear view;
[0035] Figure 3 This is a structural schematic diagram of Embodiment Seven of this utility model;
[0036] Figure 4 This is a structural schematic diagram of Embodiment 8 of this utility model;
[0037] Figure 5 This is a structural schematic diagram of the application of this utility model to a tricycle. Detailed Implementation
[0038] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0039] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0040] Example 1
[0041] like Figure 1 and Figure 2As shown, a return mechanism can achieve swaying, which can improve the problem of tricycles being prone to tipping over, and can also achieve rapid straightening, improving driving safety. It includes a front frame 9 and a rear frame 1. The front frame 9 and the rear frame 1 are connected by a sway assembly 100, which enables relative swaying and reciprocating motion of the front and rear frames 9 and 1. The sway assembly 100 is connected to the rear frame 1 by a return assembly 200, which enables the rear frame 1 to be straightened.
[0042] Furthermore, the recovery assembly 200 includes a left recovery assembly 201 and a right recovery assembly 202 with the same structure. The rear frame 1 has a left recovery area 203 and a right recovery area 204. Slide rails 6 are connected to both the left recovery area 203 and the right recovery area 204. The left recovery assembly 201 and the right recovery assembly 202 slide along their respective slide rails in the left recovery area 203 and the right recovery area 204, respectively. The left recovery assembly 201 and the right recovery assembly 202 are respectively connected to the left and right sides of the upper swing linkage rod 2 through the left linkage member 205 and the right linkage member 206.
[0043] The left and right response areas can be window structures, and can be integrated with the rear frame to form a frame with two windows.
[0044] Furthermore, the swing assembly 100 includes an upper swing linkage rod 2 and a lower swing linkage rod 10. The upper side of the rear frame 1 is connected to the upper swing linkage rod 2, which rotates synchronously with the upper rotating component, via an upper rotating component. The lower side of the rear frame 1 is connected to the lower swing linkage rod 10, which rotates synchronously with the lower rotating component, via a lower rotating component. The lower swing linkage rod 10 is connected to the front frame 9 and moves synchronously with the front frame 9. Connecting members 13 are connected between the two ends of the lower swing linkage rod 10 and the upper swing linkage rod 2. The lower swing linkage rod 10 and the upper swing linkage rod 2 are connected by the connecting members and are set to swing synchronously with the upper rotating component and the lower rotating component as the axis of the coaxial axis.
[0045] Example 2
[0046] Based on Embodiment 1, the upper and lower swing linkage rods in the swing assembly 100 adopt a rotation method, wherein the upper rotating component includes an upper rotating shaft 11 and an upper bearing, and the lower rotating component includes a lower rotating shaft 12 and a lower bearing. The upper rotating shaft 11 and the lower rotating shaft 12 are respectively connected to the upper and lower sides of the rear frame 1. The upper rotating shaft 11 and the lower rotating shaft 12 are opposite to each other and on the same axis. The upper swing linkage rod 2 is connected to the upper rotating shaft 11 through the upper bearing, and the lower swing linkage rod 10 is connected to the lower rotating shaft 12 through the lower bearing.
[0047] In Example 2, the upper and lower swing linkage rods can be directly integrated with their respective bearings to achieve a high strength.
[0048] Example 3
[0049] Based on Embodiment 1, the upper and lower swing linkage rods in the swing assembly 100 adopt another rotation method. The upper rotating component includes an upper rotating shaft 11 and an upper bearing, and the lower rotating component includes a lower rotating shaft 12 and a lower bearing. The upper and lower bearings of the rear frame 1 are respectively connected to the upper and lower sides. The upper and lower bearings are opposite to each other and on the same axis. The upper rotating shaft 11 is movably connected to the upper bearing. The upper swing linkage rod 2 is connected to the upper rotating shaft 11. The lower rotating shaft 12 is movably connected to the lower bearing. The lower swing linkage rod 10 is connected to the lower rotating shaft 12.
[0050] When the upper and lower swing linkage rods in the above embodiment three are connected to their respective rotation axes, they need to be fixed by auxiliary fasteners, such as snap rings, nuts, end caps, etc.
[0051] The connecting component 13 is a buffer connector comprising a damper 131 and a buffer spring 132. The upper and lower ends of the damper 131 are respectively connected to the upper swing linkage rod 2 and the lower swing linkage rod 10 via locking attachments. The buffer spring 132 is fitted onto the damper 131. The damper and buffer spring described above are known devices in the art and are commercially available, and will not be described in detail further. The damper generates elastic force upon deformation; this force acts as a reaction force, ensuring a certain degree of cushioning during the tipping process, thus enhancing safety.
[0052] Alternatively, it can be a supporting connecting rod, which is rigidly connected to the upper and lower linkage rods, thus enabling the swinging of the upper and lower linkage rods. This invention uses the former—a buffer connecting piece—to provide a certain degree of buffering.
[0053] Example 4
[0054] Based on Embodiments 1 to 3, the swing amplitude of the front and rear frames is limited. The swing linkage 2, the lower swing linkage 10, and the two buffers 13 form a quadrilateral structure. A limiting baffle 14 for limiting the amplitude of the swing assembly 100 is connected to the back of the front frame 9. The height of the limiting baffle 14 is lower than the bottom surface of the rear frame 1, and a swing gap is provided between the limiting baffle 14 and the rear frame 1. At the same time, the limiting baffle 8 extends toward the limiting fixing plate of the rear frame 6 and has an overlapping area with the limiting fixing plate of the rear frame 6, for contacting and limiting the rear frame 6.
[0055] Example 5
[0056] Based on Embodiments 1 to 3, the swing amplitude of the front and rear frames is limited. The swing linkage 2, the lower swing linkage 10, and the two buffers 13 form a quadrilateral structure. A limiting baffle 14 for limiting the amplitude of the swing assembly 100 is connected to the back of the front frame 9. A limiting fixing plate that contacts the limiting baffle 14 during swing is connected to the rear frame 1. The height of the limiting baffle 14 is lower than that of the limiting fixing plate. A swing gap is provided between the limiting fixing plate and the limiting baffle 14. At the same time, the limiting baffle 8 extends toward the limiting fixing plate and has an overlapping area with the limiting fixing plate. The limiting fixing plate is used to contact and limit the rear frame 6.
[0057] The aforementioned quadrilateral structure can be a parallelogram structure or a trapezoidal structure. This utility model adopts the principle of a parallelogram linkage mechanism, and optimizes and adjusts it based on this principle to improve the riding experience during the tilting process through the stability of the overall mechanism.
[0058] Furthermore, as long as the limiting baffle 14 makes contact with the bottom surface of the rear frame and / or the limiting fixing plate, a material-saving method can be adopted, with one baffle at each end of the limiting baffle 14, which are respectively connected to the left and right sides of the front frame 5. The amplitude of the swing can be limited by the limiting baffles on both sides, and those skilled in the art can limit the height of the swing distance according to the actual situation.
[0059] It can also be a single piece of the same length as or slightly shorter than the front frame; these are combinations that can be made by those skilled in the art based on actual needs.
[0060] Furthermore, the limiting baffle 14 is welded to the front frame 9. Welding improves the robustness of the limiting baffle and the front frame, ensuring that there will be no loosening that would affect the amplitude of swaying or the overall performance upon contact.
[0061] Alternatively, it can be secured using a locking device, depending on the actual needs of those skilled in the art, and will not be elaborated further.
[0062] Example 6
[0063] Based on the above embodiments one to five, an auxiliary and rapid return-to-center function is achieved. The left return component 201 includes a sliding baffle 5 and a return buffer 3. The sliding baffle 5 is slidably connected between the slide rails. The sliding baffle 5 has a limiting groove 4 for limiting the position of the return buffer. The return buffer 3 is connected in the limiting groove 4. The top of the return buffer 3 is connected to the top wall of its corresponding return area. The sliding baffle 5 is connected to the upper swing linkage rod 2 through its corresponding linkage component. The left linkage component 205 and the right linkage component 206 have the same structure. The left linkage component 205 includes a linkage rod 15. One end of the linkage rod 15 is connected to the upper swing linkage rod 2, and the other end of the linkage rod 15 is connected to the contact block 7 through the contact block rotating shaft 8. Under the drive of the corresponding linkage component, the contact block 7 drives its corresponding sliding baffle 5 to slide along the slide rail.
[0064] Example 7
[0065] like Figure 3 As shown, based on the above embodiments one to five, an auxiliary and rapid return-to-center function is achieved. The left return component 201 includes a sliding baffle 5 and a return buffer 3. The sliding baffle 5 is slidably connected between the slide rails. The sliding baffle 5 has a limiting groove 4 for limiting the position of the return buffer. The return buffer 3 is connected in the limiting groove 4. The bottom end of the return buffer 3 is connected to the bottom wall of its corresponding return area. The sliding baffle 5 is connected to the upper swing linkage rod 2 through its corresponding linkage component. The left linkage component 205 and the right linkage component 206 have the same structure. The left linkage component 205 includes a linkage rod 15. One end of the linkage rod 15 is connected to the upper swing linkage rod 2. The other end of the linkage rod 15 is connected to the contact block 7 through the contact block rotating shaft 8. A fixed hook is connected to the contact block 7. Under the drive of the corresponding linkage component, the contact block 7 drives the fixed hook to make its corresponding sliding baffle 5 slide along the slide rail.
[0066] Example 8
[0067] like Figure 4As shown, based on the above embodiments one to five, an auxiliary and rapid return-to-center function is achieved. The left return component 201 includes a sliding baffle 5 and a return buffer 3. Two sliding baffles are provided in the same return area, which are arranged vertically and alternately. Both sliding baffles are slidably connected between the slide rails. A return buffer is connected between the upper sliding baffle and the top wall of the return area, and a return buffer is also connected between the lower sliding baffle and the bottom wall of the return area. The sliding baffle 5 is connected to the upper swing linkage rod 2 through its corresponding linkage component. The left linkage component 205 and the right linkage component 206 have the same structure. The left linkage component 205 includes a linkage rod 15. One end of the linkage rod 15 is connected to the upper swing linkage rod 2, and the other end of the linkage rod 15 is connected to the contact block 7 through the contact block shaft 8. Under the drive of the corresponding linkage component, the contact block 7 drives its corresponding sliding baffle 5 to slide along the slide rail.
[0068] In embodiments six, seven, and eight above, both ends of the recovery buffer are fixedly connected to their respective connecting components, so that the recovery buffer only undergoes deformation and does not experience displacement. The recovery buffer can be a spring or rubber; this invention uses a spring.
[0069] In embodiments six and eight, the contact block 7 is connected to the upper rocking linkage rod 2 via the contact block pivot 8 and can rotate relative to it, so that the contact block can be adjusted according to the sliding baffle to increase the contact surface between the contact block and the sliding baffle.
[0070] In embodiment six, the contact block 7 contacts the sliding baffle 5, thereby driving the sliding baffle 5 to move on the slide rail. As long as the contact block can contact the sliding baffle under the driving force and the sliding baffle also slides along the slide rail, and the contact block 7 is connected to the upper swing linkage rod 2 through the contact block rotating shaft 8, the contact block can have a larger contact area with the sliding baffle at the same time.
[0071] The linkage rod 15 and the upper swing linkage rod 2 are integrally molded components, which can improve their overall strength.
[0072] In actual operation, when the front and rear frames of the tricycle rotate relative to each other via the swing mechanism, the upper and lower swing linkage rods will rotate together with the front frame. During the rotation, the contact block at the end pushes the sliding baffle on the opposite side of the swing to move upward, thereby compressing the return buffer. The return buffer gradually accumulates elasticity during the compression deformation process, assisting in the swing of the vehicle body, waiting for the subsequent rapid return to center.
[0073] The contact block can rotate around its pivot to counteract the swaying of the vertical linkage. During the tilting process, the maximum contact surface of the contact block is always in contact with the sliding baffle to ensure that the contact block and the sliding baffle are always in close contact.
[0074] When the tilting process of the current frame ends and relative balance is achieved in the tilted state, when the driver wants to restore the vehicle to an upright state, he only needs to relax the tilting force applied to the vehicle by his body. At this time, the pressure on the recovery buffer decreases, and it tends to restore deformation. Therefore, the elastic force generated by the compressed recovery buffer can be used as a restoring force to assist the front frame in changing from a tilted state to an upright state, making the whole restoration process more effortless and convenient.
[0075] In this invention, the recovery buffer can be replaced by an elastic element known in the art, such as a rubber block or other elastic element known to those skilled in the art.
[0076] At the same time, the recovery component will make the entire process of tipping and recovering the tricycle more linear and smooth, improving the driving experience.
[0077] like Figure 5 As shown, the above embodiments one through eight can all be used on tricycles.
[0078] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0079] In the description of this application, it should be noted that the terms "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0080] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or vertical, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0081] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0082] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A return mechanism, comprising a front frame (9) and a rear frame (1), characterized in that: The front frame (9) and the rear frame (1) are connected by a swing assembly (100), and the relative swinging reciprocating motion of the front and rear frames (9, 1) is realized by the swing assembly (100). The swing assembly (100) and the rear frame (1) are connected by a return assembly (200), and the return assembly (200) realizes the straightening of the rear frame (1). The recovery assembly (200) includes a left recovery assembly (201) and a right recovery assembly (202) with the same structure. The rear frame (1) is provided with a left recovery area (203) and a right recovery area (204). The left recovery area (203) and the right recovery area (204) are connected to slide rails (6). The left recovery assembly (201) and the right recovery assembly (202) slide along their respective slide rails in the left recovery area (203) and the right recovery area (204) respectively. The left recovery assembly (201) and the right recovery assembly (202) are connected to the left and right sides of the upper swing linkage rod (2) respectively through the left linkage (205) and the right linkage (206).
2. The response mechanism according to claim 1, characterized in that: The swing assembly (100) includes an upper swing linkage rod (2) and a lower swing linkage rod (10). The upper side of the rear frame (1) is connected to the upper swing linkage rod (2) which rotates synchronously with the upper rotating member through an upper rotating member. The lower side of the rear frame (1) is connected to the lower swing linkage rod (10) which rotates synchronously with the lower rotating member through a lower rotating member. The lower swing linkage rod (10) is connected to the front frame (9) and moves synchronously with the front frame (9). Connecting members (13) are connected between the two ends of the lower swing linkage rod (10) and the upper swing linkage rod (2). The lower swing linkage rod (10) and the upper swing linkage rod (2) are connected by connecting members and are set to swing synchronously with the upper rotating member and the lower rotating member as the axis of the coaxial axis.
3. A response mechanism according to claim 2, characterized in that: The upper rotating component includes an upper rotating shaft (11) and an upper bearing, and the lower rotating component includes a lower rotating shaft (12) and a lower bearing. The upper rotating shaft (11) and the lower rotating shaft (12) are respectively connected to the upper and lower sides of the rear frame (1). The upper rotating shaft (11) and the lower rotating shaft (12) are opposite to each other and on the same axis. The upper swing linkage rod (2) is connected to the upper rotating shaft (11) through the upper bearing, and the lower swing linkage rod (10) is connected to the lower rotating shaft (12) through the lower bearing. And / or, The upper rotating component includes an upper rotating shaft (11) and an upper bearing, and the lower rotating component includes a lower rotating shaft (12) and a lower bearing. The upper and lower sides of the rear frame (1) are respectively connected to the upper bearing and the lower bearing. The upper bearing and the lower bearing are opposite to each other and on the same axis. The upper rotating shaft (11) is movably connected to the upper bearing. The upper swing linkage rod (2) is connected to the upper rotating shaft (11). The lower rotating shaft (12) is movably connected to the lower bearing. The lower swing linkage rod (10) is connected to the lower rotating shaft (12).
4. A response mechanism according to claim 2, characterized in that: The connector (13) is a buffer connector, which includes a damper (131) and a buffer spring (132). The upper and lower ends of the damper (131) are respectively connected to the upper swing linkage rod (2) and the lower swing linkage rod (10) through locking accessories. The buffer spring (132) is fitted on the damper (131). Or it may be a supporting connecting rod.
5. A response mechanism according to claim 2, characterized in that: The upper swing linkage rod (2), the lower swing linkage rod (10), and the connector (13) form a quadrilateral structure.
6. A response mechanism according to claim 2, characterized in that: A limiting baffle (14) for limiting the amplitude of the sway assembly (100) is connected to the back of the front frame (9).
7. A response mechanism according to claim 6, characterized in that: The height of the limiting baffle (14) is lower than the bottom surface of the rear frame (1), and there is a swing gap between the limiting baffle (14) and the rear frame (1); And / or, The rear frame (1) is connected to a limiting fixing plate that contacts the limiting baffle (14) when swinging. The height of the limiting baffle (14) is lower than that of the limiting fixing plate, and there is a swing gap between the limiting fixing plate and the limiting baffle (14).
8. A response mechanism according to claim 1, characterized in that: The left return component (201) includes a sliding baffle (5) and a return buffer (3). The sliding baffle (5) is slidably connected between the slide rails. The sliding baffle (5) is connected to the rear frame (1) located in the return area by the return buffer (3). The sliding baffle (5) is connected to the upper swing linkage rod (2) through its corresponding linkage.
9. A response mechanism according to claim 1, characterized in that: The left linkage (205) and the right linkage (206) have the same structure. The left linkage (205) includes a linkage rod (15), one end of which is connected to the upper swing linkage rod (2), and the other end of which is connected to the contact block (7) through the contact block shaft (8). Under the drive of the corresponding linkage, the contact block (7) drives its corresponding sliding baffle (5) to slide along the slide rail.
10. A tricycle comprising a response mechanism according to any one of claims 1 to 9.