Transmission device and walking equipment

Abstract

The invention discloses a transmission device and walking equipment, and belongs to the field of non-motor vehicles. The transmission device comprises a frame assembly; the driven wheel assembly comprises a left driven wheel set and a right driven wheel set, and the left driven wheel set and the right driven wheel set are arranged on the left side and the right side of the second end of the frame assembly respectively; the rocker arm assembly comprises a left rocker arm and a right rocker arm, the left rocker arm and the right rocker arm each comprise a first connecting end and a second connecting end which are oppositely arranged, the first connecting ends are rotationally connected with the frame assembly, and the second connecting ends are rotationally connected with the left driven wheel set / the right driven wheel set; the two shock absorption assemblies are arranged between the left rocker arm and the frame assembly and between the right rocker arm and the frame assembly respectively. Compared with the prior art, the transmission device has the advantages that the shock absorption assemblies are arranged between the two driven wheel sets and the frame assembly, so that the comfort, the stability and the controllability of the walking equipment are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of non-motor vehicles, and in particular to a transmission device and a walking device. Background Art

[0002] As a common means of transportation, non-motor vehicles are widely used in many fields such as urban short-distance transportation, elderly people's travel, disabled people's travel, and express delivery. Their stability and load-bearing capacity give them unique advantages in these application scenarios.

[0003] Existing non-motor vehicles, such as tricycles, generally absorb vibrations through the overall linkage of the frame and the suspension system. Although the bumps can be reduced to a certain extent, since the entire frame participates in shock absorption, the vibrations will be transmitted to other parts of the vehicle body through the frame, resulting in greater bumps felt by the rider and poor comfort. The overall shock absorption system may not be able to respond quickly under complex road conditions (such as rough mountain roads or bumpy rural roads), resulting in reduced vehicle passability. The overall shock absorption system is prone to causing unstable center of gravity during vehicle driving, especially under high-speed turning or complex road conditions. Due to the linkage between the shock absorption system and the frame, the vehicle may experience roll or center of gravity shift during turning, affecting the handling and safety. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides a transmission device and a walking device with separate shock absorption for two driven wheel sets, improving the comfort, stability and handling of the walking device.

[0005] The technical solution of the present invention is as follows:

[0006] The present invention provides a transmission device applied to a walking device, including:

[0007] A frame assembly;

[0008] A driven wheel assembly, including a left driven wheel set and a right driven wheel set, the left driven wheel set and the right driven wheel set are respectively arranged on the left and right sides of the second end of the frame assembly;

[0009] A rocker arm assembly, including a left rocker arm and a right rocker arm, both the left rocker arm and the right rocker arm include a first connection end and a second connection end arranged opposite to each other, the first connection end is rotatably connected to the frame assembly, and the second connection end is rotatably connected to the left driven wheel set / right driven wheel set;

[0010] Two shock absorption components are respectively arranged between the left rocker arm and the frame assembly, and between the right rocker arm and the frame assembly.

[0011] Furthermore, the shock absorber assembly includes a guide rod and a shock absorber spring sleeved on the guide rod, the guide rod includes a first rotating end and a second rotating end arranged opposite to each other, the first rotating end is rotationally connected to the left rocker arm / the right rocker arm, and the second rotating end is rotationally connected to the frame assembly.

[0012] Furthermore, two connecting arms are provided between the first connecting end and the second connecting end, an avoidance space is provided between the two connecting arms, the first rotating end is at least partially located in the avoidance space, and is rotatably connected to the two connecting arms through a first rotating shaft; an extension arm is provided on the side of the frame assembly facing the rocker arm assembly, and the second rotating end is rotatably connected to the extension arm through a second rotating shaft.

[0013] Furthermore, the first connecting end is rotatably connected to the frame assembly via a locking assembly, the first connecting end comprises two connecting arms, the connecting arms are provided with a first connecting hole, the frame assembly is provided with a connecting channel, the locking assembly comprises a locking screw and a locking screw barrel, the locking screw barrel passes through the first connecting hole and the connecting channel in sequence and is fixedly connected to the locking screw; the second connecting end is rotatably connected to the left driven wheel group and the right driven wheel group respectively via a rotating shaft assembly.

[0014] Furthermore, it also includes a driving wheel disc and a transmission assembly, wherein the driving wheel disc is arranged at the first end of the frame assembly and drives the left driven wheel group and the right driven wheel group to rotate respectively through the transmission assembly.

[0015] Further, the transmission assembly includes a differential drivingly connected to the driving wheel disc, a left half shaft and a right half shaft arranged on the left and right sides of the differential and drivingly connected to the differential, a left driving flywheel is fixedly provided on the left half shaft, and the left driving flywheel is drivingly connected to the left driven wheel group through a left transmission chain, and a right driving flywheel is provided on the right half shaft, and the right driving flywheel is drivingly connected to the right driven wheel group through a right transmission chain.

[0016] Furthermore, the left driven wheel group includes a left wheel and a left flywheel that rotate synchronously through a left rotating shaft, and the left driving flywheel is connected to the left flywheel through the left transmission chain; the right driven wheel group includes a right wheel and a right flywheel that rotate synchronously through a right rotating shaft, and the right driving flywheel is connected to the right flywheel through the right transmission chain.

[0017] Furthermore, the left rotating shaft and the right rotating shaft are both provided with a first positioning member and a second positioning member, the left wheel or the right wheel is provided with a first matching portion that matches with the first positioning member, and the left flywheel or the right flywheel is provided with a second matching portion that matches with the second positioning member.

[0018] Further, tensioning members are provided on both the left swing arm and the right swing arm, and the tensioning members are configured to adjust the tension of the left drive chain and the right drive chain.

[0019] The present invention further provides a walking device, including: a driving part and the above-mentioned transmission device.

[0020] The beneficial technical effects of the present invention are:

[0021] By respectively providing independent shock-absorbing components between the left swing arm and the frame assembly, and between the right swing arm and the frame assembly, the present invention realizes the independent shock-absorbing function of the two driven wheel sets, thereby being able to more accurately absorb the vibrations from the ground, reduce the vibration transmission to the frame assembly and the rider, and improve the riding comfort. The independent shock-absorbing components can avoid the problems of delayed shock-absorbing effect and vibration transmission caused by overall linkage, ensuring the quick response of the shock-absorbing components and the ability to efficiently absorb high-frequency vibrations. Moreover, the independent shock-absorbing components can automatically adjust the shock-absorbing force according to the load condition, optimizing the load performance. In addition, the left driven wheel set and the right driven wheel set of the present invention are respectively connected to the frame assembly through the left swing arm and the right swing arm, and this structure allows the driven wheels to independently adjust the contact angle and pressure with the ground under complex road conditions. When turning or passing through uneven roads, the left swing arm and the right swing arm can rotate up and down with the first connection end as the center. Under the action of the shock-absorbing components, the two driven wheel sets can achieve flexible up and down movements under the action of gravity, enabling each driven wheel to maintain good grip, thereby improving the stability and controllability of the vehicle. By providing independent shock-absorbing components at the two driven wheel sets and cooperating with the swing arm assembly, the present invention can realize the adaptive adjustment of the walking device under different road conditions, improving the overall user experience. Description of the Drawings

[0022] Figure 1 is a walking device according to Embodiment 1 of the present invention;

[0023] Figure 2 is a walking device according to Embodiment 2 of the present invention;

[0024] Figure 3 is Figure 1 a schematic structural diagram of the middle transmission device (removing the left wheel and the right wheel);

[0025] Figure 4 is Figure 3 an enlarged view of the circled part in ;

[0026] Figure 5 is Figure 3 a schematic structural diagram of the transmission assembly and the swing arm assembly in ;

[0027] Figure 6 is Figure 1Assembly schematic diagram of the middle swing arm assembly and the driven wheel set.

[0028] Explanation of the reference numerals in the drawings:

[0029] Transmission device 100, frame assembly 10, extension arm 11, front triangular frame 12, front fork 13, rear triangular frame 14; drive sprocket 20, front drive chain 201, variable speed flywheel 202; driven wheel assembly 30, left wheel 311, left flywheel 312, right wheel 321, right flywheel 322, rotating shaft assembly 33, left rotating shaft 331, right rotating shaft 332, first positioning member 333, second positioning member 334; transmission assembly 40, differential 41, left half shaft 42, left drive flywheel 43, left drive chain 44, right half shaft 45, right drive flywheel 46, right drive chain 47; swing arm assembly 50, left swing arm 51, right swing arm 52, first connection end 53, second connection end 54, connecting arm 55, avoidance space 56; shock absorber assembly 60, guide rod 61, shock absorber spring 62, first rotating end 63, second rotating end 64, locking assembly 70, locking screw 71, locking barrel 72, tensioning member 80; drive unit 210, motor 211, pedal assembly 212, power battery 213, steering wheel 220, handlebar assembly 230, seat 240, walking device 200. Detailed implementation manners

[0030] In order to be able to more clearly understand the technical means of the present invention and implement it in accordance with the content of the specification, the following further describes the detailed implementation manners of the present invention in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0031] Please refer to Figures 1 to 6 As shown, the present invention discloses a walking device 200. The walking device 200 can be a tricycle (such as Figure 1 ), a recumbent bike (such as Figure 2 ), or a three-wheel assisted bicycle, a three-wheel bicycle, a four-wheel non-motor vehicle (such as a children's four-wheel vehicle), etc. The present invention does not make any restrictions here.

[0032] The walking device 200 includes structures such as a driving part 210, a transmission device 100, a handle assembly 230, a steering wheel 220, a seat 240, and a shock absorption assembly 60. Among them, the driving part 210 provides power for the walking device 200, including human power drive, electric power drive, and hybrid drive of human power and electric power. The transmission device 100 includes a frame assembly, a driven wheel assembly 30, a transmission assembly 40, a shock absorption assembly 60, etc. In this embodiment, the driven wheel assembly 30 is a rear wheel assembly, which is arranged behind the frame assembly 10, while the steering wheel 220 is a front wheel, which is arranged in front of the frame assembly 10. Of course, in other embodiments, the driven wheel group can also be arranged in front of the frame assembly 10, while the steering wheel 220 is arranged behind. The present invention does not limit this.

[0033] It should be noted that the present invention Figure 1 the tricycle and Figure 2 the recumbent bicycle in use the same structure of the transmission device 100. For the sake of clear description, in the following description part of the specification, the walking device 200 takes Figure 1 a tricycle as an example for detailed description, but it should not be limited thereto.

[0034] Please refer to Figure 1 , and in combination with Figures 3 to 6 shown, the present invention discloses a tricycle. The tricycle includes structures such as a transmission device 100, a driving part 210, a steering wheel 220, a handle assembly 230, a seat 240, etc.

[0035] Please refer to Figures 3 to 6 , and in combination with Figure 1 shown, the transmission device 100 includes a frame assembly 10, a driven wheel assembly 30, a rocker arm assembly 50, a shock absorption assembly 60, a driving wheel disc 20, and a transmission assembly 40.

[0036] The frame assembly 10, as the main structure of the tricycle, runs through the front and rear ends of the tricycle and provides an installation basis for all components. The frame assembly 10 includes a relatively arranged first end and a second end. Among them, the first end is connected to the driving wheel disc 20, and the second end is connected to the driven wheel group, providing support and installation basis for the entire transmission device 100.

[0037] The driving wheel disc 20 is rotatably arranged at the first end of the frame assembly 10, usually located at the front or middle part of the walking device 200, close to the position of the steering wheel 220. The driving wheel disc 20 is in transmission connection with the driving part 210 and is in transmission connection with the transmission assembly 40 through a front transmission chain 201. By driving the driving wheel disc 20 to rotate through the driving part 210, the transmission assembly 40 is driven to rotate, and then the driven wheel assembly 30 is driven to rotate, realizing the walking function of the walking device 200. By setting the driving wheel disc 20, it is ensured that the power can be efficiently transmitted to the driven wheel assembly 30.

[0038] Optionally, the driving unit 210 can be human-driven or electric-driven. In this embodiment, the walking device 200 further includes a motor 211 and a pedal assembly 212 arranged near the driving wheel 20 , and a power battery 213 electrically connected to the motor 211 .

[0039] In this embodiment, a frame rear triangle 14 for carrying goods or people is provided at the rear of the frame assembly 10. A power battery 213 is provided below the frame rear triangle 14. The power battery 213 is electrically connected to the motor 211 to drive the driving wheel 20 to rotate through the motor 211. Of course, in other embodiments, the power battery 213 may also be provided at other locations, for example, close to the motor 211.

[0040] In the present embodiment, the pedal assembly 212 is electrically connected to the motor 211. By stepping on the pedal assembly 212, the pedal force sensor detects the stepping signal and transmits the signal to the motor 211 controller. The motor 211 controller adjusts the output power of the motor 211 according to the strength and frequency of the signal. The pedal assembly 212 provides assistance to the motor 211, so that the motor 211 can use electrical energy more efficiently during operation. Moreover, this collaborative working mode of manpower and electricity makes riding easier, especially when climbing or carrying loads, which significantly reduces the physical burden of the rider. Of course, in other embodiments, the pedal assembly 212 can also be directly connected to the driving wheel disc 20 in transmission, and power is directly provided to the driving wheel disc 20 by stepping on the pedal assembly 212. The present invention is not limited to this.

[0041] The driven wheel assembly 30 includes a left driven wheel assembly and a right driven wheel assembly. The left driven wheel assembly and the right driven wheel assembly are respectively arranged on the left and right sides of the second end of the frame assembly 10. The driven wheel assembly 30 is connected to the driving wheel disc 20 through the transmission assembly 40, receives power and drives the walking device 200 to move forward.

[0042] In this embodiment, the left driven wheel group is arranged on the left side of the second end, and includes a left wheel 311 and a left flywheel 312 that rotate synchronously. The right driven wheel group is arranged on the right side of the second end, and includes a right wheel 321 and a right flywheel 322 that rotate synchronously. The transmission assembly 40 includes a differential 41 that is transmission-connected to the driving wheel disc 20, a left half shaft 42 and a right half shaft 45 that are arranged on the left and right sides of the differential 41 and transmission-connected to the differential 41, a left driving flywheel 43 is fixedly arranged on the left half shaft 42, and the left driving flywheel 43 is transmission-connected to the left flywheel 312 through a left transmission chain 44, and a right driving flywheel 46 is arranged on the right half shaft 45, and the right driving flywheel 46 is transmission-connected to the right flywheel 322 through a right transmission chain 47. The driving wheel 20 rotates and drives the left driving flywheel 43 and the right driving flywheel 46 to rotate respectively through the differential 41, and drives the left wheel 311 and the right wheel 321 to rotate respectively through the left transmission chain 44 and the right transmission chain 47. That is, the power of the driving wheel 20 is transmitted to the left half shaft 42 and the right half shaft 45 respectively through the differential 41, and then the left wheel 311 and the right wheel 321 are driven to rotate through the left driving flywheel 43 and the right driving flywheel 46, so as to achieve efficient power distribution, ensure that the left wheel 311 and the right wheel 321 can obtain appropriate power output under different road conditions, and maintain the stability and controllability of the vehicle. In addition, the left wheel 311 and the right wheel 321 can automatically adjust the speed difference according to the driving state of the walking device 200 (such as turning or uneven road surface) to improve the ground adaptability, reduce the wheel slip or idling phenomenon, and thus improve the applicability and passability of the walking device 200. In addition, the left wheel 311 and the right wheel 321 are connected to the left active flywheel 43 and the right active flywheel 46 through the left transmission chain 44 and the right transmission chain 47, respectively, avoiding the power loss and unbalanced power transmission problems of the traditional single chain transmission. This transmission device 100 that realizes double-sided drive through double chains not only makes the power transmission balanced and the driving efficiency high, but also effectively shortens the power transmission path, reduces the energy loss of the transmission link, and makes the power response speed faster. That is to say, in the transmission device 100 of this embodiment, the driving wheel disc 20 realizes the driving of the double-sided driven wheels through the double chains, so that the power transmission is balanced and the driving efficiency is high, and the structure is simple, easy to maintain, and there are fewer parts, which reduces the manufacturing cost, and also reduces the overall weight of the transmission device 100, and improves the controllability and energy efficiency of the walking device 200. Of course, in other embodiments, the transmission assembly 40 can also be other structures, as long as the power on the driving wheel disc 20 can be provided to the left wheel 311 and the right wheel 321 respectively. The present invention is not limited to this.

[0043] Furthermore, the left wheel 311 and the left flywheel 312 are synchronously connected via a left rotating shaft 331, and the right wheel 321 and the right flywheel 322 are synchronously connected via a right rotating shaft 332. The left transmission shaft and the right transmission shaft can be collectively referred to as a rotating shaft assembly 33. This arrangement ensures direct transmission of power from the flywheel to the wheel, avoids relative sliding between the wheel and the flywheel, and ensures that power can be smoothly and efficiently transmitted to the wheel, thereby improving the acceleration performance and climbing ability of the vehicle.

[0044] Furthermore, the left rotating shaft 331 and the right rotating shaft 332 are both provided with a first positioning member 333 and a second positioning member 334, the left wheel 311 or the right wheel 321 is provided with a first matching portion that matches the first positioning member 333, and the left flywheel 312 or the right flywheel 322 is provided with a second matching portion that matches the second positioning member 334. Such an arrangement ensures that the wheel and the flywheel rotate precisely and synchronously, and reduces the slipping phenomenon during the transmission process.

[0045] In this embodiment, the first positioning member 333 is a long key provided on the rotating shaft assembly 33, and the second positioning member 334 is a short key provided on the rotating shaft assembly 33. The first matching portion is a first groove provided on the left wheel 311 or the right wheel 321, and the second matching portion is a second groove provided on the left flywheel 312 or the right flywheel 322. The long key and the short key both protrude from the rotating shaft assembly 33, and respectively cooperate with the first groove and the second groove to realize a quick positioning connection, achieve a foolproof effect, and can prevent the wheel and the flywheel from slipping during the rotation process, thereby improving the accuracy of synchronous rotation.

[0046] Furthermore, a speed-changing flywheel 202 is provided on the left half shaft 42 or the right half shaft 45, and the driving wheel disc 20 is drivingly connected to the speed-changing flywheel 202 through the front transmission chain 201, and the speed-changing flywheel 202 is drivingly connected to the differential 41. By providing the speed-changing flywheel 202 on the left half shaft 42 or the right half shaft 45, the power of the driving wheel disc 20 can be transmitted to the speed-changing flywheel 202 through the front transmission chain 201, and then transmitted to the differential 41 through the speed-changing flywheel 202. The speed-changing flywheel 202 can select different transmission ratios according to the operation of the rider, thereby realizing multi-speed transmission, improving adaptability, and optimizing power transmission efficiency.

[0047] Furthermore, a rear transmission is provided on the front transmission chain 201 and is used in conjunction with the speed-changing flywheel 202 .

[0048] Please refer to 3 to Figure 6As shown, the transmission device 100 further includes a rocker arm assembly 50 and a shock absorber assembly 60. The independent shock absorption of the two left wheels 311 and right wheels 321 is achieved through the rocker arm assembly 50 and the shock absorber assembly 60, improving the comfort, stability, and controllability of the walking device 200.

[0049] Among them, the rocker arm assembly 50 includes a left rocker arm 51 and a right rocker arm 52. Both the left rocker arm 51 and the right rocker arm 52 include a first connection end 53 and a second connection end 54 arranged oppositely. The first connection end 53 is rotatably connected to the frame assembly 10, and the second connection end 54 is rotatably connected to the left driven wheel set / right driven wheel set. Two shock absorber assemblies 60 are respectively arranged between the left rocker arm 51 and the frame assembly 10, and between the right rocker arm 52 and the frame assembly 10. By respectively arranging independent shock absorber assemblies 60 between the left rocker arm 51 and the frame assembly 10, and between the right rocker arm 52 and the frame assembly 10, the independent shock absorption function of the two driven wheel sets is realized, so that the vibration from the ground can be absorbed more accurately, reducing the vibration transmitted to the frame assembly 10 and the rider, and improving the comfort of riding. The independent shock absorber assembly 60 can avoid the problems of delayed shock absorption effect and vibration transmission caused by overall linkage, ensuring the quick response of the shock absorber assembly 60 and the ability to efficiently absorb high-frequency vibrations. Moreover, the independent shock absorber assembly 60 can automatically adjust the shock absorption force according to the load condition, optimizing the load performance. In addition, the left driven wheel set and the right driven wheel set of the present invention are respectively connected to the frame assembly 10 through the left rocker arm 51 and the right rocker arm 52. This structure allows the driven wheels to independently adjust the contact angle and pressure with the ground under complex road conditions. When turning or passing through an uneven road surface, the left rocker arm 51 and the right rocker arm 52 can rotate up and down with the first connection end 53 as the center. Under the action of the shock absorber assembly 60, the two driven wheel sets can achieve flexible up and down movement under the action of gravity, enabling each driven wheel to maintain good grip, thereby improving the stability and controllability of the vehicle. By arranging independent shock absorber assemblies 60 at the two driven wheel sets and cooperating with the rocker arm assembly 50, the present invention can achieve the adaptive adjustment of the walking device 200 under different road conditions, improving the overall user experience.

[0050] Optionally, in this embodiment, since the structures of the left rocker arm 51 and the right rocker arm 52 are the same, only the right rocker arm 52 will be taken as an example for detailed description here.

[0051] The right swing arm 52 includes a first connection end 53 and a second connection end 54 that are oppositely arranged, and two connection arms 55 that connect the first connection end 53 and the second connection end 54. An installation part for installing the shock absorber assembly 60 and an avoidance space 56 for avoiding the shock absorber assembly 60 are provided between the two connection arms 55. By providing the installation part between the two connection arms 55, the shock absorber assembly 60 can be accurately positioned and fixed. This design ensures that the shock absorber assembly 60 does not displace or shake during operation, thereby improving the stability of the entire shock absorption system. Moreover, the design of the installation part enables the shock absorber assembly 60 to be closely integrated inside the left swing arm 51, reducing the occupation of external space and making the structure of the entire transmission device 100 more compact. Additionally, the avoidance space 56 between the two connection arms 55 provides sufficient movement space for the shock absorber assembly 60. During the driving of the walking device 200, the shock absorber assembly 60 needs to perform telescopic movement according to the road conditions to absorb vibrations. The avoidance space 56 ensures that the shock absorber assembly 60 is not interfered by the structure of the left swing arm 51 during movement, so that it can freely expand and contract, reducing the friction and resistance between the shock absorber assembly 60 and the right swing arm 52 during movement, and improving the response speed and efficiency of the shock absorption system. Additionally, the design of the installation part and the avoidance space 56 makes the installation and disassembly of the shock absorber assembly 60 more convenient. Maintenance personnel can quickly replace or repair the shock absorber assembly 60, reducing the assembly time and maintenance cost.

[0052] Furthermore, the first connection end 53 is rotatably connected to the frame assembly 10 through a locking component 70. Such a setting is to ensure the firmness and reliability of the connection, improving the flexibility of assembly and the convenience of maintenance. And the first connection end 53 is rotatably connected to the frame assembly 10 through the locking component 70, allowing the left swing arm 51 to rotate up and down around the first connection end 53, so that the left driven wheel set can independently adjust the contact angle and pressure with the ground according to the road conditions, optimizing the shock absorption performance and the passability of the vehicle, ensuring that each driven wheel set can maintain good grip on complex road conditions, thereby improving the controllability and stability of the vehicle. Additionally, the dual locking mechanism of the locking component 70 can withstand large loads, ensuring that the walking device 200 still maintains a stable connection and reliable shock absorption performance under load.

[0053] The first connection end 53 includes two connection arms, and first connection holes are provided on the connection arms. A connection channel is provided on the frame assembly 10. The locking component 70 includes a locking screw 71 and a locking barrel 72. The locking barrel 72 sequentially passes through the first connection hole and the connection channel and is fixedly connected to the locking screw 71. When the walking device 200 (such as a tricycle) is driving on a bumpy road surface, the right swing arm 52 swings up and down with the center of the locking barrel 72 as the rotation center, and absorbs vibrations through the shock absorber assembly 60, thereby reducing the vibration transmission to the frame and the rider, and improving the driving comfort.

[0054] The second connection end 54 is rotationally connected to the right driven wheel assembly through the rotating shaft assembly 33. Specifically, the second connection end 54 is sleeved on the right rotating shaft 332 through the second connection hole and is located between the first positioning member 333 and the second positioning member 334. When the right rotating shaft 332 rotates driven by the right flywheel 322, the right rocker arm 52 remains relatively still, so that the movement of the shock absorbing system is relatively independent of the power transmission system, and the shock absorbing system can respond to the impact of the ground more freely without being interfered by the power transmission system.

[0055] Furthermore, the locking screw 72 is coaxially arranged with the left semi-shaft 42 / the right semi-shaft 45. This arrangement makes the length of the line connecting the center of the right active flywheel 46 and the right flywheel 322 the same as the connection length between the first connecting end 53 and the second connecting end 54 of the right rocker arm 52. That is, when the right rocker arm 52 swings up and down with the center of the locking screw 72 as the rotation center, the tension length of the right transmission chain 47 remains unchanged and is always in a stable tension state. It will not be loosened or over-tensioned due to the up and down movement of the right rocker arm 52, thereby improving the stability and reliability of the transmission system. In addition, the stable tension state not only avoids excessive stretching or compression of the chain during movement, prolongs the service life of the chain and sprocket, but also reduces the shaking and shaking of the chain during movement, further reduces the vibration transmitted to the frame assembly 10 and the rider, and improves the comfort of the vehicle.

[0056] Furthermore, the shock absorbing assembly 60 includes a guide rod 61 and a shock absorbing spring 62 sleeved on the guide rod 61, and the guide rod 61 includes a first rotating end 63 and a second rotating end 64 arranged opposite to each other, the first rotating end 63 is rotationally connected to the left rocker arm 51 / the right rocker arm 52, and the second rotating end 64 is rotationally connected to the frame assembly 10. By sleeved on the shock absorbing spring 62 on the guide rod 61, it can be elastically deformed when impacted by the ground, absorb the vibration from the ground, so that the driven wheel group can achieve flexible up and down movement under the action of the shock absorbing spring 62, and improve the shock absorbing ability. By rotationally connecting the two ends of the guide rod 61 with the left rocker arm 51 / the right rocker arm 52 and the frame assembly 10 respectively, the stability of the shock absorbing assembly 60 during the movement is ensured. The risk of failure caused by structural looseness or deformation is reduced, and the reliability of the entire shock absorbing system is improved.

[0057] The first rotating end 63 of the guide rod 61 is at least partially located in the avoidance space 56 and is rotatably connected to the two connecting arms via the first rotating shaft. Such a configuration provides sufficient space for the movement of the shock absorbing assembly 60, ensuring that the guide rod 61 will not interfere with the connecting arms when moving up and down. The existence of the avoidance space 56 enables the shock absorbing assembly 60 to freely extend and retract, reducing movement resistance and improving the response speed and efficiency of the shock absorbing system.

[0058] The frame assembly 10 is provided with an extension arm 11 on one side facing the rocker arm assembly 50, and the second rotation end 64 is rotationally connected to the extension arm 11 via a second rotation shaft. This arrangement is provided to enhance the connection strength between the shock absorber assembly 60 and the frame assembly 10. The rotation connection not only provides sufficient freedom of movement, but also ensures that the shock absorber assembly 60 can smoothly transmit force and torque during movement.

[0059] Furthermore, a tensioner 80 is provided on both the left rocker arm 51 and the right rocker arm 52. The tensioner 80 is configured to adjust the tension of the left transmission chain 44 and the right transmission chain 47. By providing the tensioner 80, the tension of the transmission chain can be adjusted according to actual needs, ensuring that the transmission chain always maintains an appropriate tension state under different working conditions, avoiding unstable power transmission or increased chain wear caused by loose or over-tensioned transmission chains. In addition, the provision of the tensioner 80 can also enable the transmission chain to remain stable during movement, reduce the shaking and swaying of the transmission chain, and improve the reliability of the transmission system.

[0060] The handlebar assembly 230 and the steering wheel 220 are disposed near a first end (generally the front end) of the frame assembly 10. Figure 1 As shown, the handle assembly 230 is assembled with the frame assembly 10 and the steering wheel 220 through the front triangle 12 of the frame. In addition, a front fork 13 is also provided between the steering wheel 220 and the front triangle 12 of the frame. The steering operation of the tricycle is achieved through the cooperation of the handle assembly 230 and the steering wheel 220, so that the rider can drive according to the rider's intention during driving. In addition, the handle assembly 230 also provides hand support for the rider, so that the rider can maintain balance and stability during driving. Furthermore, the handle assembly 230 also integrates control devices such as an accelerator and a brake handle to facilitate the rider's operation.

[0061] The seat 240 is located in the middle or rear of the frame assembly 10, usually between the steering wheel 220 and the driven wheel assembly 30, providing a comfortable seating position for the rider. In summary, for the transmission device 100 of the present invention and the walking device 200 having the transmission device 100, by respectively arranging independent shock absorption components 60 between the left swing arm 51 and the frame assembly 10 and between the right swing arm 52 and the frame assembly 10, the independent shock absorption function of the two driven wheel groups is realized, so that the vibration from the ground can be more accurately absorbed, the vibration transmitted to the frame assembly 10 and the rider can be reduced, and the riding comfort is improved. The independent shock absorption components 60 can avoid the problems of delayed shock absorption effect and vibration transmission caused by overall linkage, ensuring the quick response of the shock absorption components 60 and the ability to efficiently absorb high-frequency vibrations. Moreover, the independent shock absorption components 60 can automatically adjust the shock absorption force according to the load condition, optimizing the load performance. In addition, the left driven wheel group and the right driven wheel group of the present invention are respectively connected to the frame assembly 10 through the left swing arm 51 and the right swing arm 52. This structure allows the driven wheels to independently adjust the contact angle and pressure with the ground under complex road conditions. When turning or passing through uneven roads, the left swing arm 51 and the right swing arm 52 can rotate up and down with the first connection end 53 as the center. Under the action of the shock absorption components 60, the two driven wheel groups can achieve flexible up and down movement under the action of gravity, so that each driven wheel can maintain good grip, thereby improving the stability and controllability of the vehicle. By arranging independent shock absorption components 60 at the two driven wheel groups and cooperating with the swing arm assembly 50, the present invention can realize the adaptive adjustment of the walking device 200 under different road conditions, improving the overall user experience.

[0062] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A transmission device, applied to walking equipment, characterized in that: include: Frame assembly (10); A driven wheel assembly (30) comprises a left driven wheel assembly and a right driven wheel assembly, wherein the left driven wheel assembly and the right driven wheel assembly are respectively arranged on the left side and the right side of the second end of the frame assembly (10); A rocker arm assembly (50) comprises a left rocker arm (51) and a right rocker arm (52), wherein the left rocker arm (51) and the right rocker arm (52) each comprise a first connecting end (53) and a second connecting end (54) which are arranged opposite to each other, wherein the first connecting end (53) is rotatably connected to the frame assembly (10), and the second connecting end (54) is rotatably connected to the left driven wheel assembly / the right driven wheel assembly; Two shock-absorbing assemblies (60) are respectively arranged between the left rocker arm (51) and the frame assembly (10), and between the right rocker arm (52) and the frame assembly (10).

2. The transmission device according to claim 1, characterized in that: The shock absorbing assembly (60) comprises a guide rod (61) and a shock absorbing spring (62) sleeved on the guide rod (61); the guide rod (61) comprises a first rotating end (63) and a second rotating end (64) which are arranged opposite to each other; the first rotating end (63) is rotationally connected to the left rocker arm (51) / the right rocker arm (52); and the second rotating end (64) is rotationally connected to the frame assembly (10).

3. The transmission device according to claim 2, characterized in that: Two connecting arms (55) are provided between the first connecting end (53) and the second connecting end (54), an escape space (56) is provided between the two connecting arms (55), the first rotating end (63) is at least partially located in the escape space (56), and is rotationally connected to the two connecting arms (55) via a first rotating shaft; an extension arm (11) is provided on a side of the frame assembly (10) facing the rocker arm assembly (50), and the second rotating end (64) is rotationally connected to the extension arm (11) via a second rotating shaft.

4. The transmission device according to claim 1, characterized in that: The first connecting end (53) is rotatably connected to the frame assembly (10) via a locking assembly (70), the first connecting end (53) comprises two connecting arms, the connecting arms are provided with a first connecting hole, the frame assembly (10) is provided with a connecting channel, the locking assembly (70) comprises a locking screw (71) and a locking barrel (72), the locking barrel (72) passes through the first connecting hole and the connecting channel in sequence and is fixedly connected to the locking screw (71); the second connecting end (54) is rotatably connected to the left driven wheel assembly and the right driven wheel assembly respectively via a rotating shaft assembly (33).

5. The transmission device according to any one of claims 1 to 4, characterized in that: It also includes a driving wheel disc (20) and a transmission assembly (40), wherein the driving wheel disc (20) is arranged at the first end of the frame assembly (10) and drives the left driven wheel assembly and the right driven wheel assembly to rotate respectively through the transmission assembly (40).

6. The transmission device according to claim 5, characterized in that: The transmission assembly (40) comprises a differential (41) transmission-connected to the driving wheel disc (20), a left half shaft (42) and a right half shaft (45) arranged on the left and right sides of the differential (41) and transmission-connected to the differential (41), a left driving flywheel (43) fixedly arranged on the left half shaft (42), the left driving flywheel (43) transmission-connected to the left driven wheel set through a left transmission chain (44), and a right driving flywheel (46) transmission-connected to the right driven wheel set through a right transmission chain (47).

7. The transmission device according to claim 6, characterized in that: The left driven wheel group comprises a left wheel (311) and a left flywheel (312) which rotate synchronously via a left rotating shaft (331), and the left driving flywheel (43) is drivingly connected to the left flywheel (312) via the left transmission chain (44); the right driven wheel group comprises a right wheel (321) and a right flywheel (322) which rotate synchronously via a right rotating shaft (332), and the right driving flywheel (46) is drivingly connected to the right flywheel (322) via the right transmission chain (47).

8. The transmission device according to claim 7, characterized in that: The left rotating shaft (331) and the right rotating shaft (332) are both provided with a first positioning member (333) and a second positioning member (334); the left wheel (311) or the right wheel (321) is provided with a first matching portion that matches with the first positioning member (333); and the left flywheel (312) or the right flywheel (322) is provided with a second matching portion that matches with the second positioning member (334).

9. The transmission device according to claim 6, characterized in that: The left rocker arm (51) and the right rocker arm (52) are both provided with a tensioning member (80), and the tensioning member (80) is configured to adjust the tension of the left transmission chain (44) and the right transmission chain (47).

10. A walking device, characterized in that: include: A driving unit (210) and a transmission device as claimed in any one of claims 1 to 9.

Images