Heavy-load steering wheel and damping mechanism thereof

Abstract

The utility model relates to a heavy-load steering wheel and a damping mechanism thereof. The damping mechanism comprises a damping rocker arm which is rotationally connected with the wheel and the rotary bracket; the limiting component is fixedly connected to the rotary bracket; the guide component is connected between the damping rocker arm and the limiting component and guides the limiting component in the relative rotation process of the damping rocker arm and the rotary support. The limiting component moves relative to the guide component and has a first limit position and a second limit position; the damping elastic piece is connected between the damping rocker arm and the limiting component and can elastically act on the limiting component in the process that the limiting component moves relative to the guide component. The damping mechanism is connected between the rotary support and the wheel, energy can be absorbed and released through the elastic effect of the damping elastic piece in the process that the wheel vibrates in the advancing process, the damping effect is achieved, dust and gravel cannot affect the damping mechanism, the damping mechanism cannot generate oil leakage, and therefore reliability and safety are high.

Description

Technical Field

[0001] The present application relates to the technical field of mechanical equipment applicable to sandblasting and painting environments, and particularly to a heavy-duty steering wheel and its shock-absorbing mechanism. Background Art

[0002] For the heavy-duty steering wheels used in sandblasting and painting environments, hydraulic shock absorbers are currently mostly used for shock absorption. However, a large amount of dust and harmful gases in the working environment of the heavy-duty steering wheels will corrode the seals and metal components of the hydraulic shock absorbers, which will not only cause the seals to age and the sealing performance to decline, but also make it difficult to maintain and clean the precision mechanical structures and seals inside the hydraulic shock absorbers. In addition, in sandblasting and painting environments, the hydraulic shock absorbers are prone to continuous vibration and impact, resulting in reduced long-term stability and reliability. Summary of the Utility Model

[0003] Based on this, it is necessary to provide a heavy-duty steering wheel and its shock-absorbing mechanism with relatively high working stability and reliability.

[0004] A shock-absorbing mechanism includes:

[0005] A shock-absorbing rocker arm, which is rotatably connected to the slewing bracket of the heavy-duty steering wheel around a first axis and rotatably connected to the wheel of the heavy-duty steering wheel around a second axis, the second axis deviates from the first axis and is parallel to the first axis;

[0006] A limiting member, fixedly connected to the slewing bracket;

[0007] A guiding member, connected between the shock-absorbing rocker arm and the limiting member, and guiding the limiting member during the relative rotation of the shock-absorbing rocker arm and the slewing bracket; the limiting member moves relative to the guiding member and has a first limit position and a second limit position; and

[0008] A shock-absorbing elastic member, connected between the shock-absorbing rocker arm and the limiting member, and capable of elastically acting on the limiting member during the movement of the limiting member relative to the guiding member.

[0009] The above shock-absorbing mechanism is connected between the slewing bracket and the wheel. During the vibration of the wheel during travel, the elastic action exerted by the shock-absorbing elastic member on the limiting member between the shock-absorbing rocker arm and the limiting member can absorb and release energy, thereby reducing the vibration and impact received by the slewing bracket and other structural members mounted on the slewing bracket, playing a shock-absorbing role. In addition, dust and sand will not affect the shock-absorbing mechanism of the present application, and compared with conventional hydraulic shock absorbers, the shock-absorbing mechanism of the present application will not cause oil leakage, so it has relatively high reliability and safety and is environmentally friendly. At the same time, each structural member in the shock-absorbing mechanism is easy to repair and replace, and the material cost is low.

[0010] In one embodiment, the limiting member includes a first limiting plate and a second limiting plate, the first limiting plate can be elastically abutted against the shock-absorbing elastic member, the second limiting plate is located on the side of the first limiting plate away from the shock-absorbing elastic member, and is spaced apart from the first limiting plate; when the limiting member is in the first extreme position, the side of the second limiting plate facing the shock-absorbing elastic member abuts against the guide member, and when the limiting member is in the second extreme position, the side of the first limiting plate away from the shock-absorbing elastic member abuts against the guide member.

[0011] In one embodiment, the guide member includes a first guide rod, a second guide rod arranged parallel to the first guide rod, and an abutment protrusion arranged on the second guide rod, the first guide rod and the second guide rod are located on the same side with one end fixedly connected to the shock-absorbing rocker arm, and the other end passes through the first limiting plate; when the limiting member is in the first extreme position, the side of the second limiting plate facing the shock-absorbing elastic member abuts against the end face of the first guide rod, and when the limiting member is in the second extreme position, the side of the first limiting plate facing away from the shock-absorbing elastic member abuts against the abutment protrusion.

[0012] In one embodiment, the first limiting plate is provided with through holes corresponding to the first guide rod and the second guide rod, and the first guide rod and the second guide rod are both penetrated by the through holes corresponding thereto; the through holes are waist-shaped holes and have a length direction, and the length direction is perpendicular to the first axis.

[0013] In one embodiment, the shock absorbing mechanism includes a connecting rod, there are two shock absorbing rocker arms, the two shock absorbing rocker arms are respectively arranged on both sides of the wheel, and the connecting rod connects the two shock absorbing rocker arms; one end of the first guide rod and one end of the second guide rod are fixedly connected to the connecting rod.

[0014] In one embodiment, there are multiple first guide rods and multiple second guide rods, and the multiple first guide rods are all located between the two shock-absorbing rocker arms, and the second guide rods are both provided on the side of the two shock-absorbing rocker arms facing away from the first guide rod.

[0015] In one embodiment, the shock absorbing mechanism includes a plurality of first locking members, and any one of the plurality of first guide rods and the plurality of second guide rods is locked to the connecting rod through the first locking member.

[0016] In one of the embodiments, the shock absorbing mechanism includes two second locking members, and the two second locking members lock the two shock absorbing rocker arms to the connecting rod in a one-to-one correspondence.

[0017] In one of the embodiments, the shock-absorbing elastic member is a spring sleeved around the periphery of the guiding member.

[0018] A heavy-duty steering wheel includes the above shock-absorbing mechanism.

[0019] Since the heavy-duty steering wheel adopts the above shock-absorbing mechanism, it can be free from the influence of dust and sand, has a good shock-absorbing function, high structural reliability and safety, and low maintenance cost. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 Structural schematic diagram of the heavy-duty steering wheel according to the embodiment of the present application;

[0022] Figure 2 is Figure 1 Structural schematic diagram of the heavy-duty steering wheel shown from another perspective;

[0023] Figure 3 is Figure 1 Structural schematic diagram of a perspective of the heavy-duty steering wheel shown after hiding the shock-absorbing elastic member in the shock-absorbing mechanism;

[0024] Description of the Reference Numerals:

[0025] 10. Heavy-duty steering wheel; 100. Wheel; 200. Rotary bracket; 300. First axis; 400. Second axis; 500. Shock-absorbing mechanism; 510. Shock-absorbing rocker arm; 530. Limiting member; 531. First limiting plate; 532. Through hole; 533. Second limiting plate; 550. Guiding member; 551. First guiding rod; 552. Second guiding rod; 553. Abutting projection; 570. Shock-absorbing elastic member; 590. Connecting rod; 591. Intermediate section; 592. Connecting section; 610. First locking member; 620. Second locking member; 630. Gasket. Detailed Embodiments

[0026] To make the above objects, features, and advantages of the present application more apparent and understandable, the following provides a detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0027] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present application.

[0028] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0029] In the present application, unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0030] In the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below", and "beneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0031] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation.

[0032] Combined with Figures 1 to 3 As shown, the present application protects a shock absorption mechanism 500, which includes a shock absorption rocker arm 510, a limiting member 530, a guiding member 550 and a shock absorption elastic member 570. Among them, the shock absorption rocker arm 510 is used to be rotatably connected to the rotary bracket 200 of the heavy-duty steering wheel 10 around the first axis 300, and is rotatably connected to the wheel 100 of the heavy-duty steering wheel 10 around the second axis 400. The second axis 400 deviates from the first axis 300 and is parallel to the first axis 300. The limiting member 530 is fixedly connected to the rotary bracket 200. The guiding member 550 is connected between the shock absorption rocker arm 510 and the limiting member 530, and guides the limiting member 530 during the relative rotation of the shock absorption rocker arm 510 and the rotary bracket 200. The limiting member 530 moves relative to the guiding member 550 and has a first limit position and a second limit position. The shock absorption elastic member 570 is connected between the shock absorption rocker arm 510 and the limiting member 530, and can elastically act on the limiting member 530 during the movement of the limiting member 530 relative to the guiding member 550.

[0033] It can be understood that the above shock absorption mechanism 500 is connected between the rotary bracket 200 and the wheel 100. During the vibration of the wheel 100 during travel, through the elastic action exerted by the shock absorption elastic member 570 between the shock absorption rocker arm 510 and the limiting member 530 on the limiting member 530, energy can be absorbed and released, thereby reducing the vibration and impact received by the rotary bracket 200 and other structural members mounted on the rotary bracket 200, playing a shock absorption role. In addition, dust and sand will not affect the shock absorption mechanism 500 of the present application, and compared with conventional hydraulic shock absorbers, the shock absorption mechanism 500 of the present application will not cause oil leakage, so it has high reliability and safety and is environmentally friendly. At the same time, each structural member in the shock absorption mechanism 500 is easy to repair and replace, and the material cost is low.

[0034] Combined with Figures 1 to 3As shown, specifically in the present application, the limiting member 530 includes a first limiting plate 531 and a second limiting plate 533, the first limiting plate 531 can elastically abut against the shock-absorbing elastic member 570, and the second limiting plate 533 is located on a side of the first limiting plate 531 away from the shock-absorbing elastic member 570, and is spaced apart from the first limiting plate 531. When the limiting member 530 is in the first limit position, the side of the second limiting plate 533 facing the shock-absorbing elastic member 570 abuts against the guide member 550, and when the limiting member 530 is in the second limit position, the side of the first limiting plate 531 away from the shock-absorbing elastic member 570 abuts against the guide member 550. It can be understood that by making the first limiting plate 531 abut against the guide member 550 to define the first limit position of the relative movement of the limiting member 530 relative to the guide member 550, and making the second limiting plate 533 abut against the guide member 550 to define the second limit position of the relative movement of the limiting member 530 relative to the guide member 550, the limiting member 530 and the guide member 550 can move relative to each other between the first limit position and the second limit position. Specifically, the first limiting plate 531 and the second limiting plate 533 are both fixedly mounted on the swivel bracket 200.

[0035] Specifically, the guide member 550 includes a first guide rod 551, a second guide rod 552 arranged parallel to the first guide rod 551, and a contact protrusion 553 arranged on the second guide rod 552. One end of the first guide rod 551 and the second guide rod 552 located on the same side are both fixedly connected to the shock-absorbing rocker arm 510, and the other end passes through the first limiting plate 531. When the limiting member 530 is in the first limit position, the side of the second limiting plate 533 facing the shock-absorbing elastic member 570 abuts against the end face of the first guide rod 551. When the limiting member 530 is in the second limit position, the side of the first limiting plate 531 away from the shock-absorbing elastic member 570 abuts against the contact protrusion 553. It can be understood that the first guide rod 551 and the second guide rod 552 can cooperate with each other to guide the movement of the limiting member 530 between the limiting member 530 and the shock-absorbing rocker arm 510, so that the movement stability of the limiting member 530 is better. In addition, by making the end face of the first guide rod 551 abut against the second limit plate 533, and the abutment protrusion 553 set on the second guide rod 552 abut against the first limit plate 531, the purpose of making the limit member 530 and the guide member 550 move relative to each other between the first extreme position and the second extreme position can be achieved without increasing the structural complexity of the first guide rod 551 and the second guide rod 552 as much as possible.

[0036] Specifically, in the present application, the first limiting plate 531 is provided with through holes 532 corresponding to the first guide rod 551 and the second guide rod 552, and the first guide rod 551 and the second guide rod 552 are respectively passed through the corresponding through holes 532. The through holes 532 are waist-shaped holes and have a length direction, and the length direction is perpendicular to the first axis 300. It can be understood that by providing the through holes 532 on the first limiting plate 531, the first guide rod 551 and the second guide rod 552 can respectively pass through the corresponding through holes 532 and move relative to the first limiting plate 531 within the through holes 532. In addition, during the process of the shock-absorbing rocker arm 510 swinging relative to the wheel 100 around the first axis 300, the first guide rod 551 and the second guide rod 552 will tilt relative to the first limiting plate 531 as the shock-absorbing rocker arm 510 yaws. Therefore, by extending the through holes 532 in the length direction perpendicular to the first axis 300 to form waist-shaped holes, the requirements for the first guide rod 551 and the second guide rod 552 to move along the length direction within the through holes 532 can be met. Further, the dimension of the through holes 532 in the width direction perpendicular to the length direction is exactly equal to the dimensions of the corresponding first guide rod 551 and second guide rod 552, and the inner side surfaces of the through holes 532 in the width direction are finish-machined surfaces to cooperate with the first guide rod 551 and the second guide rod 552 to transmit the torque generated during the vibration process. It should be noted that for the through holes 532, the width direction is parallel to the first axis 300, and the length direction is perpendicular to the first axis 300.

[0037] In the present application, the shock-absorbing mechanism 500 includes a connecting rod 590. There are two shock-absorbing rocker arms 510, and the two shock-absorbing rocker arms 510 are respectively arranged on both sides of the wheel 100, and the connecting rod 590 connects the two shock-absorbing rocker arms 510. One end of each of the first guide rod 551 and the second guide rod 552 is fixedly connected to the connecting rod 590. It can be understood that the two shock-absorbing rocker arms 510 are arranged at intervals along the second axis 400. In this way, the two shock-absorbing rocker arms 510 cooperate with the limiting member 530, the guiding member 550 and the shock-absorbing elastic member 570 to act on the opposite sides of the wheel 100 to achieve a better shock-absorbing effect. In addition, the two shock-absorbing rocker arms 510 are fixedly connected together through the connecting rod 590, so that they can swing synchronously relative to the vehicle body, and the arrangement of the connecting rod 590 also provides a medium for the connection between the first guide rod 551, the second guide rod 552 and the shock-absorbing rocker arm 510, and can better provide connection positions for the first guide rod 551 and the second guide rod 552.

[0038] Further, there are multiple first guide rods 551 and multiple second guide rods 552. The multiple first guide rods 551 are all located between the two shock-absorbing rocker arms 510, and the second guide rods 552 are arranged on one side of the two shock-absorbing rocker arms 510 facing away from the first guide rods 551. Specifically, in the present application, there are two first guide rods 551 and two second guide rods 552, so that the first guide rod 551 and the second guide rod 552 are respectively arranged on both sides of any one shock-absorbing rocker arm 510. In this way, the guiding member 550 is symmetrically arranged on both sides of the two shock-absorbing rocker arms 510. In other embodiments, the number of the first guide rods 551 can also be set to three, four or other numbers, as long as it is ensured that the multiple first guide rods 551 are all located between the two shock-absorbing rocker arms 510. In other embodiments, the number of the second guide rods 552 can also be set to an even number such as four, six, etc., so that an equal number of second guide rods 552 can be arranged on the outer sides of the two shock-absorbing rocker arms 510, so that the whole guiding member 550 can still be symmetrically arranged on both sides of the two shock-absorbing rocker arms 510.

[0039] Continue to refer to Figures 1 to 3 , specifically, the shock-absorbing mechanism 500 includes multiple first locking members 610, and any one of the multiple first guide rods 551 and the multiple second guide rods 552 is locked to the connecting rod 590 through the first locking member 610. It can be understood that both the first guide rod 551 and the second guide rod 552 can be fixedly connected to the connecting rod 590 through the first locking member 610.

[0040] For the convenience of simplified description, the multiple first guide rods 551 and the multiple second guide rods 552 are both referred to as guide rods. Specifically, the first locking member 610 is a bolt, and can be threaded through the connecting rod 590 and then threadedly connected to the guide rod, and the nut of the bolt abuts against the connecting rod 590, so that the guide rod is stably fixed on the connecting rod 590. Further, two gaskets 630 are sleeved on any one guide rod, so that after the shock-absorbing elastic member 570 is sleeved on the guide rod, it can be located between the two gaskets 630, so that both ends of the shock-absorbing elastic member 570 can stably abut against the two gaskets 630, and the two gaskets 630 provide a force application plane for both ends of the shock-absorbing elastic member 570 to prevent the shock-absorbing elastic member 570 from being skewed. In addition, the positions of the connecting rod 590 corresponding to the nut of the bolt and the gasket 630 are both set as planes to facilitate providing a larger contact surface to achieve stable contact.

[0041] Specifically, the shock absorption mechanism 500 includes two second locking members 620, and the two second locking members 620 lock the two shock absorption rocker arms 510 to the connecting rod 590 in a one-to-one correspondence. It can be understood that the two second locking members 620 can relatively fixedly connect the two shock absorption rocker arms 510 and the connecting rod 590. Specifically, the connecting rod 590 has a three-section structure with a thick middle and thin ends, so the connecting rod 590 includes a middle section 591 and two connecting sections 592 connected to both ends of the middle section 591. The two connecting sections 592 respectively pass through the two shock absorption rocker arms 510, and the two shock absorption rocker arms 510 respectively abut against the two end faces of the middle section 591. The second locking member 620 is in cooperation connection with the connecting section 592 and jointly clamps the shock absorption rocker arm 510 with the middle section 591. Specifically, the second locking member 620 can be a nut threadedly connected to the connecting section 592, or can also be a snap ring that can be fixedly clamped on the connecting section 592.

[0042] Specifically in this application, the shock absorption elastic member 570 is a spring sleeved on the periphery of the guiding member 550. The spring can not only provide an elastic acting force, but also be sleeved on the periphery of the guiding member 550, so that there is no need to additionally provide a dedicated connecting structure to connect the spring with the limiting member 530 and the spring with the shock absorption rocker arm 510. In other embodiments, the shock absorption elastic member 570 can also be other elastic structural members such as elastic foam and silica gel blocks.

[0043] This application also protects a heavy-duty steering wheel 10, which includes the above-mentioned shock absorption mechanism 500. In addition, the heavy-duty steering wheel 10 also includes the above-mentioned wheel 100 and the slewing bracket 200. The heavy-duty steering wheel 10 adopts the above-mentioned shock absorption mechanism 500, so it can be not affected by dust and sand, has a good shock absorption function, high structural reliability and safety, and low maintenance cost.

[0044] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0045] The above-described embodiments only represent several implementation manners of this application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of this application, several deformations and improvements can still be made, and these all belong to the protection scope of this application. Therefore, the protection scope of the patent of this application should be subject to the appended claims.

Claims

1. A shock absorbing mechanism, characterized in that: include: A shock-absorbing rocker arm, used to be connected to the slewing support of the heavy-load steering wheel around a first axis for rotation, and connected to the wheel of the heavy-load steering wheel around a second axis for rotation, wherein the second axis deviates from the first axis and is parallel to the first axis; A limiting member, fixedly connected to the slewing bracket; a guide member connected between the damping rocker arm and the limiting member, and guiding the limiting member during the relative rotation of the damping rocker arm and the slewing bracket; the limiting member moves relative to the guide member and has a first limit position and a second limit position; and The shock-absorbing elastic member is connected between the shock-absorbing rocker arm and the limiting member, and can elastically act on the limiting member when the limiting member moves relative to the guide member.

2. The shock absorbing mechanism according to claim 1, characterized in that: The limiting member includes a first limiting plate and a second limiting plate, the first limiting plate being capable of elastically abutting against the shock-absorbing elastic member, the second limiting plate being located on a side of the first limiting plate away from the shock-absorbing elastic member, and being spaced apart from the first limiting plate; when the limiting member is in the first extreme position, a side of the second limiting plate facing the shock-absorbing elastic member abuts against the guide member, and when the limiting member is in the second extreme position, a side of the first limiting plate facing away from the shock-absorbing elastic member abuts against the guide member.

3. The shock absorbing mechanism according to claim 2, characterized in that: The guide member includes a first guide rod, a second guide rod arranged parallel to the first guide rod, and an abutment protrusion arranged on the second guide rod, the first guide rod and the second guide rod have one end located on the same side fixedly connected to the shock-absorbing rocker arm, and the other end passes through the first limiting plate; when the limiting member is in the first extreme position, the side of the second limiting plate facing the shock-absorbing elastic member abuts against the end face of the first guide rod, and when the limiting member is in the second extreme position, the side of the first limiting plate facing away from the shock-absorbing elastic member abuts against the abutment protrusion.

4. The shock absorbing mechanism according to claim 3, characterized in that: The first limiting plate is provided with through holes corresponding to the first guide rod and the second guide rod, and the first guide rod and the second guide rod are both penetrated by the corresponding through holes; the through holes are waist-shaped holes and have a length direction, and the length direction is perpendicular to the first axis.

5. The shock absorbing mechanism according to claim 3, characterized in that: The shock absorbing mechanism includes a connecting rod. There are two shock absorbing rocker arms, which are respectively arranged on both sides of the wheel. The connecting rod connects the two shock absorbing rocker arms; one end of the first guide rod and one end of the second guide rod are fixedly connected to the connecting rod.

6. The shock absorbing mechanism according to claim 5, characterized in that: There are multiple first guide rods and multiple second guide rods, and the multiple first guide rods are all located between the two shock-absorbing rocker arms. The second guide rods are both provided on the side of the two shock-absorbing rocker arms facing away from the first guide rod.

7. The shock absorbing mechanism according to claim 6, characterized in that: The shock absorbing mechanism includes a plurality of first locking members, and any one of the plurality of first guide rods and the plurality of second guide rods is locked to the connecting rod through the first locking member.

8. The shock absorbing mechanism according to claim 5, characterized in that: The shock absorbing mechanism comprises two second locking members, and the two second locking members lock the two shock absorbing rocker arms to the connecting rod in a one-to-one correspondence.

9. The shock absorbing mechanism according to any one of claims 1 to 8, characterized in that: The shock-absorbing elastic member is a spring sleeved on the periphery of the guide member.

10. A heavy-load steering wheel, characterized in that: The invention comprises the shock absorbing mechanism according to any one of claims 1 to 9.

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