Multi-connecting-rod parallel stabilization mechanism and seat and moving device comprising same

Abstract

The invention provides a multi-connecting-rod parallel stabilization mechanism and a seat and a moving device comprising the multi-connecting-rod parallel stabilization mechanism. The multi-connecting-rod parallel stabilization mechanism comprises an upper mounting frame, an auxiliary connecting rod frame, a basic lower frame and at least two sets of swing arm assemblies which are connected in parallel; the multiple ends of the swing arm assembly are rotationally connected with the foundation lower frame, the upper mounting frame and the auxiliary connecting rod frame correspondingly, the multi-connecting-rod parallel stabilization mechanism enables the swing arm assembly to swing synchronously in the same direction through the auxiliary connecting rod frame, and vertical stabilization motion of the upper mounting frame is achieved. The swing arm composed of multiple sets of connecting rods connected in parallel on the two sides is rotationally connected with the upper mounting frame, the auxiliary connecting rod frame and the basic lower frame, so that the auxiliary connecting rod frame moves approximately in the vertical direction, and stable vertical stabilization movement is achieved. Due to the fact that the swing arms are arranged in pairs, the multiple sets of swing arms connected in parallel move synchronously, the auxiliary connecting rod frame moving in the vertical direction is very stable, and compared with a conventional shear fork mechanism, the auxiliary connecting rod frame is more stable and eradicates the shaking phenomenon.

Description

Technical Field

[0001] The invention relates to the field of seat shock absorption, and in particular to a multi-link parallel anti-sway mechanism and a seat and a moving device comprising the same. Background Art

[0002] In the prior art, the anti-roll device is a device that uses lift or gravity to form a stabilizing moment to reduce the swaying of the ship and improve the seaworthiness.

[0003] Usually, due to external factors such as wind and waves, the ship will tilt in a certain direction on the water surface, causing the hull to sway left and right and forward and backward. This has a great impact on the riding comfort of passengers on the ship, and may even affect the safety of passengers, equipment and cargo on board.

[0004] In addition, the car will also be bumpy when driving due to potholes or speed bumps. If the vehicle brakes suddenly, the impact caused by inertia and the shaking caused by centrifugal force when the vehicle turns will reduce the comfort and safety of passengers.

[0005] Therefore, the applicant of the present invention has designed a multi-link parallel anti-roll mechanism and a seat and a moving device including the same, in order to overcome the above technical problems. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the defects in the prior art that the transport device is prone to shaking due to factors such as inertia or centrifugal force, and the comfort and safety need to be improved, and to provide a multi-link parallel anti-sway mechanism and a seat and a mobile device including the same.

[0007] The present invention solves the above technical problems through the following technical solutions: A multi-link parallel anti-sway mechanism, characterized in that the multi-link parallel anti-sway mechanism comprises an upper mounting frame, a secondary connecting rod frame, a base lower frame and at least two sets of swing arm assemblies connected in parallel with each other, and multiple ends of the swing arm assembly are rotatably connected to the base lower frame, the upper mounting frame and the secondary connecting rod frame respectively. The multi-link parallel anti-sway mechanism enables the swing arm assembly to swing synchronously in the same direction through the auxiliary link frame, thereby realizing the vertical anti-sway movement of the upper mounting frame.

[0008] According to one embodiment of the present invention, each group of the swing arm assembly includes two pairs of first combined swing arms and a torsion bar, the torsion bar is installed at the end of the base lower frame, and the first end of the first combined swing arm is rotatably connected to the two ends of the torsion bar respectively.

[0009] According to one embodiment of the present invention, the second end of the first combined swing arm is rotatably connected to the two ends of the upper mounting frame, and the third end of the first combined swing arm is rotatably connected to the two ends of the auxiliary connecting rod frame.

[0010] According to one embodiment of the present invention, the first combined swing arm is composed of a plurality of connecting rods.

[0011] According to one embodiment of the present invention, the first combined swing arm includes three connecting rods, and the connecting rods are sequentially connected to form a triangular structure.

[0012] According to one embodiment of the present invention, the two connecting rods located at the second end of the first combined swing arm are perpendicular to each other.

[0013] According to one embodiment of the present invention, the multi-link parallel anti-sway mechanism also includes at least one pair of second combined swing arms, the structure of the second combined swing arms is the same as that of the first combined swing arms, the first ends of each pair of second combined swing arms are respectively rotatably connected to the base lower frame, the second ends of the second combined swing arms are respectively rotatably connected to the two ends of the upper mounting frame, and the third ends of the second combined swing arms are respectively rotatably connected to the two ends of the auxiliary connecting rod frame.

[0014] According to an embodiment of the present invention, the multi-link parallel anti-roll mechanism further comprises a magnetorheological device, which is arranged horizontally and installed between the upper installation frame and the auxiliary link frame.

[0015] According to an embodiment of the present invention, the multi-link parallel anti-sway mechanism further comprises an air spring, and the air spring is installed at the bottom of the upper mounting frame to directly apply thrust to the upper mounting frame.

[0016] The present invention further provides a seat, which is characterized in that the seat comprises the multi-link parallel anti-sway mechanism as described above.

[0017] The present invention further provides a moving device, which is characterized in that the moving device includes the multi-link parallel anti-sway mechanism as described above.

[0018] The positive and progressive effects of the present invention are: The multi-link parallel anti-roll mechanism of the present invention and the seat and moving device including the same are rotatably connected with the upper mounting frame, the auxiliary connecting rod frame and the base lower frame through a swing arm composed of multiple sets of connecting rods in parallel on both sides, so that the auxiliary connecting rod frame moves approximately vertically, thereby realizing stable vertical anti-roll movement.

[0019] Since the swing arms are arranged in pairs, multiple sets of parallel swing arms move synchronously, making the vertically moving secondary connecting rod frame very stable. Compared with the conventional scissor-type mechanism, it is more stable and eliminates shaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and other features, properties and advantages of the present invention will become more apparent through the following description in conjunction with the accompanying drawings and embodiments, in which the same reference numerals always represent the same features, wherein: Figure 1 It is a stereoscopic diagram of the multi-link parallel anti-roll mechanism of the present invention.

[0021] Figure 2 It is an exploded view of the multi-link parallel anti-roll mechanism of the present invention.

[0022] Figure 3 It is a structural schematic diagram of the swing arm assembly in the multi-link parallel anti-sway mechanism of the present invention.

[0023] Figure 4 The figure is a schematic diagram of the installation structure of the air spring in the multi-link parallel anti-roll mechanism of the present invention.

[0024] Figure 5 This is a front view of the multi-link parallel anti-roll mechanism of the present invention when it is at the highest height position.

[0025] Figure 6 It is a top view of the multi-link parallel anti-roll mechanism of the present invention when it is at the highest height position.

[0026] Figure 7 This is a front view of the multi-link parallel anti-roll mechanism of the present invention when it is located at an intermediate height position.

[0027] Figure 8 It is a top view of the multi-link parallel anti-roll mechanism of the present invention when it is located at an intermediate height position.

[0028] Fig. 9 This is a front view of the multi-link parallel anti-roll mechanism of the present invention when it is at the lowest height position.

[0029] Fig.10 It is a top view of the multi-link parallel anti-roll mechanism of the present invention when it is at the lowest height position.

[0030] Fig.11 The schematic diagram of the installation structure of the multi-link parallel anti-sway mechanism of the present invention for use on a seat Figure 1 .

[0031] Fig.12 The schematic diagram of the installation structure of the multi-link parallel anti-sway mechanism of the present invention for use on a seat Figure 2 .

[0032] Fig.13 The schematic diagram of the installation structure of the multi-link parallel anti-sway mechanism of the present invention on the anti-sway bed Figure 1 .

[0033] Fig.14 The schematic diagram of the installation structure of the multi-link parallel anti-sway mechanism of the present invention on the anti-sway bed Figure 2 . DETAILED DESCRIPTION

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0035] Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Whenever possible, the same reference numerals will be used throughout the drawings to refer to the same or like parts. Furthermore, although the terms used in the present invention are selected from well-known and commonly used terms, some terms mentioned in the present invention specification may be selected by the applicant at his or her discretion, and their detailed meanings are explained in the relevant parts of the description of this document.

[0036] Furthermore, it is required that the present invention be understood not only by the actual terms used but also by the meanings connoted by each term.

[0037] like Figure 1 and Figure 2 As shown, the present invention discloses a multi-link parallel anti-sway mechanism, which includes an upper mounting frame 10, a secondary connecting rod frame 20, a base lower frame 30 and at least two sets of swing arm assemblies 40 connected in parallel with each other, and multiple ends of the swing arm assemblies 40 are rotatably connected to the base lower frame 30, the upper mounting frame 10 and the secondary connecting rod frame 20. The multi-link parallel anti-sway mechanism enables the swing arm assembly 40 to swing synchronously in the same direction through the secondary connecting rod frame 20, thereby realizing the vertical anti-sway movement of the upper mounting frame 10.

[0038] Combination Figure 2 and Figure 3 As shown, in this embodiment, each group of swing arm assemblies 40 includes two pairs of first combined swing arms 41 and a torsion bar 42. The torsion bar 42 is installed at the end of the base lower frame 30, and the first end 411 of the first combined swing arm 41 is rotatably connected to the two ends of the torsion bar 42. The second end 412 of the first combined swing arm 41 is rotatably connected to the two ends of the upper mounting frame 10, and the third end 413 of the first combined swing arm 41 is rotatably connected to the two ends of the auxiliary connecting rod frame 20.

[0039] Preferably, the first combined swing arm 41 is composed of a plurality of connecting rods. For example, in this embodiment, the first combined swing arm 41 includes three connecting rods 414, and the connecting rods 414 are connected in sequence to form a triangular structure.

[0040] Furthermore, the two connecting rods 414 located at the second end 412 of the first combined swing arm 41 are perpendicular to each other, that is, the angle a between the two connecting rods 414 is a right angle. This structural arrangement allows the first end 411 and the second end 412 to be located on the same straight line when the first combined swing arm 41 rotates to the middle plane of the anti-rolling amplitude.

[0041] like Figure 2 As shown, the multi-link parallel anti-sway mechanism also includes at least one pair of second combined swing arms 50. Here, the structure of the second combined swing arm 50 is preferably set to be the same as the structure of the first combined swing arm 41, that is, the second combined swing arm 50 includes three connecting rods, and the connecting rods are connected in sequence to form a triangular structure. The first end 51 of each pair of second combined swing arms 50 is respectively rotatably connected to the base lower frame 30, the second end 52 of the second combined swing arm 50 is respectively rotatably connected to the two ends of the upper mounting frame 10, and the third end 53 of the second combined swing arm 50 is respectively rotatably connected to the two ends of the auxiliary connecting rod frame 20. The two connecting rods located at the second end 52 of the second combined swing arm 50 are perpendicular to each other, that is, the angle between the two connecting rods is a right angle (its structure is the same as that of the first combined swing arm 41).

[0042] Furthermore, in this embodiment, it is preferably configured that the first end 411 of the first combined swing arm 41 can be connected to the first end 411 of the first combined swing arm 41 by a rotating shaft (for example Figure 5 , Figure 7 and Fig. 9 The rotating shaft X1 and the rotating shaft X3 shown in FIG. 3 are rotatably connected to the base lower frame 30, and the first end 51 of the second combined swing arm 50 can be connected by the rotating shaft (for example Figure 5 , Figure 7 and Fig. 9 The rotating shaft X2 shown in FIG. 1 is rotatably connected to the base lower frame 30 , and the rotating shaft X1 , the rotating shaft X2 and the rotating shaft X3 are located on the same straight line.

[0043] Similarly, the second end 412 of the first combined swing arm 41 can be connected to the second end 412 of the first combined swing arm 41 by a rotating shaft (for example Figure 5 , Figure 7 and Fig. 9 The second end 52 of the second combined swing arm 50 can be connected to the upper mounting frame 10 by the rotating shaft Y1 and the rotating shaft Y3 shown in FIG. Figure 5 , Figure 7 and Fig. 9 The rotating shaft Y2) shown in the figure is rotatably connected to the upper mounting frame 10, and the rotating shaft Y1, the rotating shaft Y2 and the rotating shaft Y3 are located on the same straight line.

[0044] The third end 413 of the first combined swing arm 41 can be connected to the first combined swing arm 41 by a rotating shaft (for example Figure 5 , Figure 7 and Fig. 9The rotating shaft Z1, the rotating shaft Z3 shown in FIG. 2 are rotatably connected to the secondary connecting rod frame 20, and the third end 53 of the second combined swing arm 50 can be connected to the auxiliary connecting rod frame 20 by the rotating shaft (for example Figure 5 , Figure 7 and Fig. 9 The rotating shaft Z2 shown in FIG. 1 is rotatably connected to the secondary connecting rod frame 20 , and the rotating shafts Z1 , Z2 and Z3 are located on the same straight line.

[0045] In this embodiment, the first combined swing arm 41 and the second combined swing arm 50 have the following two important functions: 1. The first combined swing arm 41 and the second combined swing arm 50 can pass through the torsion bar 42 so that the first combined swing arm 41 and the second combined swing arm 50 on both sides can move synchronously.

[0046] Second, the first combined swing arm 41 and the second combined swing arm 50 have three ends, which are rotatably connected to the upper mounting frame 10, the secondary connecting rod frame 20, and the base lower frame 30 through three rotating shafts, respectively, so that the upper mounting frame 10 installed on the rotating shaft Y1, the rotating shaft Y2, and the rotating shaft Y3 can move around the rotating shaft X1, the rotating shaft X2, and the rotating shaft X3 respectively. However, the key point in this application is to provide a secondary connecting rod frame 20 connected to the rotating shaft Z1, the rotating shaft Z2, and the rotating shaft Z3 of the first combined swing arm 41 and the second combined swing arm 50, so as to ensure that the movement of the upper mounting frame 10 has no singularity.

[0047] like Figure 2 As shown, preferably, the multi-link parallel anti-roll mechanism further includes a magnetorheological device 60, which is horizontally arranged and installed between the upper mounting frame 10 and the secondary connecting rod frame 20. The arrangement of the magnetorheological device 60 can maximize the use of the magnetorheological stroke, which refers to the ability to generate algorithmically controllable motion damping force.

[0048] like Figure 4 As shown, further preferably, the multi-link parallel anti-sway mechanism further includes an air spring 70, which is installed at the bottom of the upper mounting frame 10 to directly apply thrust to the upper mounting frame 10. This structure allows the air spring 70 to be arranged and connected in an almost vertical use direction, and can directly apply thrust to the upper mounting frame 10, so that thrust loss is minimized, so that the air spring 70 can work with very small air pressure.

[0049] like Figure 5 and Figure 6 As shown, when the first combined swing arm 41 and the second combined swing arm 50 rotate to the highest anti-roll height position, the secondary connecting rod frame 20 moves vertically upward, driving the upper mounting frame 10 to move to the highest height position. At this time, the distance between the highest anti-roll height position and the lowest anti-roll height position of the swing arm assembly 40 is A (as shown in FIG. Figure 5).

[0050] like Figure 7 and Figure 8 As shown, when the first combined swing arm 41 and the second combined swing arm 50 rotate to the middle anti-roll height position, the rotation axis Y1, the rotation axis Y2 and the rotation axis Y3 move to the middle plane of the anti-roll amplitude (i.e. the center line position of the base lower frame 30), and the rotation axis Y1, the rotation axis Y2 and the rotation axis Y3 are on the same plane as the rotation axis X1, the rotation axis X2 and the rotation axis X3. Since the secondary connecting rod frame 20 is provided here, that is, the upper part is rotatably connected to the secondary connecting rod frame 20 through the rotation axis Z1, the rotation axis Z2 and the rotation axis Z3, the upper mounting frame 10 is prevented from generating an uncertain singular phenomenon (i.e., the rotation axis Y1 and the rotation axis Y3 have two upward or downward movement directions), so that the rotation axis Y1, the rotation axis Y2 and the rotation axis Y3 have only one movement direction, and the purpose of synchronous upward or synchronous downward movement is achieved.

[0051] like Fig. 9 and Fig.10 As shown, when the first combined swing arm 41 and the second combined swing arm 50 rotate to the lowest anti-roll height position, the secondary connecting rod frame 20 moves vertically downward, driving the upper mounting frame 10 to move to the lowest height position. At this time, the distance between the highest anti-roll height position and the lowest anti-roll height position of the swing arm assembly 40 is A (as shown in FIG. Fig. 9 ).

[0052] The auxiliary link frame 20 provided in the multi-link parallel anti-roll mechanism can synchronously connect the top ends of the first combined swing arms 41 and the second combined swing arms 50 to the axis of the middle plane of the anti-roll amplitude, and connect them left and right, so that all the first combined swing arms 41 and the second combined swing arms 50 can swing synchronously in the same direction without causing any strange phenomenon.

[0053] The structure of the secondary connecting rod frame 20 ensures that the directions of the connecting rod movements of the plurality of parallel first combined swing arms 41 and second combined swing arms 50 are consistent when the first combined swing arms 41 and the second combined swing arms 50 reach the central plane (i.e., the middle plane of the anti-roll amplitude), thereby avoiding the singularity of the swing arm movement (i.e., the uncertainty of the movement direction).

[0054] In summary, the multi-link parallel anti-roll mechanism of the present invention realizes stable vertical anti-roll movement by rotatably connecting (for example, hingedly connecting) the third ends of the first and second combined swing arms, which are composed of a plurality of connecting rods connected in parallel on both sides, to a platform (i.e., the auxiliary connecting rod frame 20) that can approximately move vertically.

[0055] The multi-link parallel anti-sway mechanism adopts a plurality of parallel swing arms of the same size to move synchronously. At the same time, at least two pairs of first combined swing arms are connected to each other by torsion bars on the left and right sides, so that the vertical movement platform is very stable. Compared with the conventional scissor-type mechanism, it is more stable and can effectively prevent shaking.

[0056] According to the above structural description, Fig.11 and Fig.12 As shown, the present invention also provides a seat, which includes the multi-link parallel anti-roll mechanism 100 as described above. For example, the multi-link parallel anti-roll mechanism is used for vehicle-mounted passive anti-roll.

[0057] like Fig.13 and Fig.14 As shown, the present invention also provides a mobile device, which includes the above-mentioned multi-link parallel anti-sway mechanism 100. For example, the multi-link parallel anti-sway mechanism can also increase the length and width of the parallel swing arms, or increase the number of parallel swing arms, for use in anti-sway beds for medical rescue.

[0058] Of course, the above is only an example of the application of the multi-link parallel anti-roll mechanism, which can also be used in various products that require vertical anti-roll, and will not be described in detail here, all of which are within the protection scope of this application.

[0059] For those skilled in the art, the above invention disclosure is only used as an example and does not constitute a limitation of the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements and amendments to the present application. Such modifications, improvements and amendments are suggested in the present application, so such modifications, improvements and amendments still belong to the spirit and scope of the exemplary implementation of the present application.

[0060] At the same time, the present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0061] Similarly, it should be noted that in order to simplify the description disclosed in this application and thus help understand one or more embodiments of the invention, in the foregoing description of the embodiments of the present application, multiple features are sometimes merged into one embodiment, drawing or description thereof. However, this disclosure method does not mean that the subject matter of this application requires more features than those mentioned in the claims. In fact, the features of the implementation are less than all the features of the single implementation disclosed above. In some implementations, numbers are used to describe the number of components and attributes. It should be understood that such numbers used to describe the implementations are modified in some examples using the modifiers "approximately", "approximately" or "substantially".

[0062] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A multi-link parallel anti-roll mechanism, characterized in that: The multi-link parallel anti-sway mechanism comprises an upper mounting frame, a secondary connecting rod frame, a base lower frame and at least two sets of swing arm assemblies connected in parallel with each other, and multiple ends of the swing arm assembly are rotatably connected to the base lower frame, the upper mounting frame and the secondary connecting rod frame respectively. The multi-link parallel anti-sway mechanism enables the swing arm assembly to swing synchronously in the same direction through the auxiliary link frame, thereby realizing the vertical anti-sway movement of the upper mounting frame.

2. The multi-link parallel anti-roll mechanism according to claim 1, characterized in that: Each group of the swing arm assemblies includes two pairs of first combined swing arms and a torsion bar. The torsion bar is installed at the end of the base lower frame, and the first end of the first combined swing arm is rotatably connected to the two ends of the torsion bar respectively.

3. The multi-link parallel anti-roll mechanism according to claim 2, characterized in that: The second end of the first combined swing arm is rotatably connected to the two end portions of the upper mounting frame respectively, and the third end of the first combined swing arm is rotatably connected to the two end portions of the auxiliary connecting rod frame respectively.

4. The multi-link parallel anti-roll mechanism according to claim 2, characterized in that: The first combined swing arm is composed of a plurality of connecting rods.

5. The multi-link parallel anti-roll mechanism according to claim 4, characterized in that: The first combined swing arm includes three connecting rods, and the connecting rods are connected in sequence to form a triangular structure.

6. The multi-link parallel anti-roll mechanism according to claim 5, characterized in that: The two connecting rods located at the second end of the first combined swing arm are perpendicular to each other.

7. The multi-link parallel anti-roll mechanism according to claim 2, characterized in that: The multi-link parallel anti-sway mechanism also includes at least one pair of second combined swing arms, the structure of the second combined swing arms is the same as that of the first combined swing arms, the first ends of each pair of second combined swing arms are respectively rotatably connected to the base lower frame, the second ends of the second combined swing arms are respectively rotatably connected to the two ends of the upper mounting frame, and the third ends of the second combined swing arms are respectively rotatably connected to the two ends of the auxiliary connecting rod frame.

8. The multi-link parallel anti-roll mechanism according to claim 1, characterized in that: The multi-link parallel anti-roll mechanism further comprises a magnetorheological device, which is arranged horizontally and installed between the upper installation frame and the auxiliary link frame.

9. The multi-link parallel anti-roll mechanism according to claim 1, characterized in that: The multi-link parallel anti-sway mechanism also includes an air spring, which is installed at the bottom of the upper mounting frame and directly applies thrust to the upper mounting frame.

10. A seat, characterized in that: The seat comprises a multi-link parallel anti-roll mechanism as described in any one of claims 1 to 9.

11. A mobile device, characterized in that: The moving device comprises a multi-link parallel anti-roll mechanism as described in any one of claims 1 to 9.

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