Rotary assembly

Abstract

The utility model provides a rotating assembly. The rotating assembly (1) comprises: a rotating member (10), the outer peripheral surface of which is provided with a spiral groove (101); the rotating angle limiting stopper (20) is linked with the rotating piece (10) and limits the rotating angle of the rotating piece (10), the rotating angle limiting stopper (20) comprises a guiding piece (21) and a transmission piece (22) connected with the guiding piece (21) in a sliding mode, a part of the transmission piece (22) is positioned in the spiral groove (101), and when the rotating piece (10) rotates, under the guiding effect of the guiding piece (21), the part of the transmission piece (22) is located in the spiral groove (101). The transmission part (22) slides in the axial direction of the rotating part (10) relative to the rotating part (10), and further comprises a stop part (11) arranged on one of the guide part (21) and the rotating part (10), and the stop part (11) is used for limiting the limiting position of the transmission part (22) during displacement relative to the spiral groove (101).

Description

Technical Field

[0001] The utility model relates to a power transmission device, and particularly to a rotating assembly. Background Art

[0002] For components capable of performing rotational motion, it is usually necessary to limit the rotation angle thereof. For example, for the steering wheel of a vehicle, it is usually set to allow the steering wheel to rotate one and a half turns. Therefore, for components capable of performing rotational motion, it is generally necessary to provide a limiter for limiting the rotation angle of the component.

[0003] Existing limiters include ball screw type limiters. In such limiters, a stepped portion is provided on the screw, and the nut moving along the screw moves to the stepped portion and is restricted from further movement by the stepped portion, which in turn restricts the further rotation of the screw. Such limiters have a complex structure, high cost, and relatively large weight, and will generate obvious noise during operation.

[0004] Therefore, it is desirable to provide a limiter with a simple structure, low cost, and small weight. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a rotating assembly which has an angle limiting function and a simple structure, low cost, and small weight.

[0006] The utility model provides a rotating assembly, which includes,

[0007] A rotating member, on the outer peripheral surface of which a spiral groove is provided;

[0008] A rotation angle limiter, which is linked with the rotating member and limits the rotation angle of the rotating member,

[0009] Wherein,

[0010] The rotation angle limiter includes a guide member and a transmission member slidably connected to the guide member. A part of the transmission member is positioned in the spiral groove. When the rotating member rotates, under the guiding action of the guide member, the transmission member slides relative to the rotating member along the axial direction of the rotating member, and,

[0011] It further includes a stop member provided on one of the guide member and the rotating member, and the stop member is used for limiting the extreme position during the displacement of the transmission member relative to the spiral groove.

[0012] According to an embodiment of the utility model, the stop member is detachably fixed at a predetermined position in the spiral groove or the guide member.

[0013] According to an embodiment of the present utility model, the transmission member includes a sliding fit portion and an extension portion. The sliding fit portion is received in the inner cavity of the guiding member, and the extension portion is connected to the sliding fit portion and a part of it is positioned in the spiral groove of the rotating member.

[0014] According to an embodiment of the present utility model, the sliding fit portion includes a main body portion and a guiding portion fixed to the shaft end of the main body portion, and the guiding portion and the main body portion are formed of different materials.

[0015] According to an embodiment of the present utility model, the guiding portion is configured to be detachably connected to the main body portion via a fitting structure.

[0016] According to an embodiment of the present utility model, the fitting structure includes a first fitting portion provided on the guiding portion and a second fitting portion provided on the main body portion, and one of the first fitting portion and the second fitting portion is configured as a claw and the other is configured as a slot.

[0017] According to an embodiment of the present utility model, a first contour surface is provided on the inner side of the guiding member, a second contour surface is provided on the outer side of the main body portion, and the first contour surface and the second contour surface prevent the transmission member from rotating around the axis of the rotating member in a form-fitting manner.

[0018] According to an embodiment of the present utility model, the first contour surface includes a flat inner wall surface and a concave inner wall surface. The outer peripheral surface of the guiding portion is adapted to the concave inner wall surface and is guided to slide by the concave inner wall surface. The second contour surface includes a flat surface on a partial section of the main body portion. The flat surface is disposed opposite to the flat inner wall surface and abuts against each other when the extension portion abuts against the stopper.

[0019] According to an embodiment of the present utility model, a pair of the flat inner wall surfaces are provided on both sides of the concave inner wall surface in a direction perpendicular to the sliding direction of the transmission member.

[0020] According to an embodiment of the present utility model, the stopper is disposed in the spiral groove. The stopper is provided with a contour surface that abuts against the transmission member, and the contour surface is shaped to fit the outer surface of the part of the transmission member that abuts against the stopper.

[0021] According to an embodiment of the present utility model, the guiding member has a base plate and a first side plate and a second side plate connected to the base plate, and each of the first side plate and the second side plate is provided with a pair of the flat inner wall surfaces and the concave inner wall surfaces.

[0022] According to an embodiment of the present invention, the extension length of the spiral groove in the axial direction of the rotating member is adapted to the slidable range of the transmission member in the guiding member.

[0023] and / or,

[0024] When installed in a vehicle, the guiding member remains stationary relative to the vehicle frame.

[0025] According to an embodiment of the present invention, one end of the guiding portion is provided with a plurality of claws uniformly distributed in its circumferential direction, and the main body portion is provided with the card slot extending in its circumferential direction.

[0026] According to an embodiment of the present invention, the concave inner wall surfaces on both the first side plate and the second side plate are configured as different segments on a cylindrical surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The features, advantages and technical effects of exemplary embodiments of the present invention will be described below with reference to the drawings. In the drawings, the same reference numerals denote the same elements, where:

[0028] Figure 1 is an exploded view of a rotating assembly according to an embodiment of the present invention.

[0029] Figure 2 is a cross-sectional view of a rotating assembly according to an embodiment of the present invention.

[0030] Figure 3 Schematically shows a component in the rotating assembly according to an embodiment of the present invention.

[0031] Figure 4 Schematically shows another component in the rotating assembly according to an embodiment of the present invention.

[0032] Figure 5 Schematically shows another component in the rotating assembly according to an embodiment of the present invention. DETAILED DESCRIPTION

[0033] The following will describe the specific embodiments of the rotating assembly according to the present invention with reference to the drawings. The following detailed description and drawings are used to exemplarily illustrate the principle of the present invention. The present invention is not limited to the described preferred embodiments. Each of the embodiments described in the present invention can be used alone or in any combination. The protection scope of the present invention is defined by the claims.

[0034] In addition, spatial relative terms, such as "upper", "lower", "left", and "right", are used to describe the relative position relationship between elements shown in the drawings. Therefore, spatial relative terms can be applied to directions different from those shown in the drawings when in use. Apparently, although for ease of description, all these spatial relative terms refer to the directions shown in the drawings, those skilled in the art can understand that directions different from those shown in the drawings can be used.

[0035] Figure 1 is an exploded view of a rotating assembly according to an embodiment of the present invention. Figure 2 is a cross-sectional view of a rotating assembly according to an embodiment of the present invention. The following will be combined with Figure 1 and Figure 2 to describe the rotating assembly according to an embodiment of the present invention.

[0036] As Figure 1 and Figure 2 shown, the present invention provides a rotating assembly 1, which includes a rotating member 10 and a corner limiter 20. The corner limiter 20 is used to limit the rotation angle of the rotating member 10. The rotating member 10 and the corner limiter 20 of the rotating assembly 1 will be described in detail below.

[0037] A spiral groove 101 is provided on the outer peripheral surface of the rotating member 10. Through the spiral groove 101, the rotating member 10 is linked with a transmission member 22 in the corner limiter 20 to be described in detail below. And, the rotating member 10 can rotate. For example, it rotates under the drive of a driving member (not shown). And, the rotating member 10 can be provided with a hollow structure, and other components can be positioned in the hollow inner cavity of the rotating member 10 and be drivingly connected with the rotating member 10. In one example, the rotating assembly 1 is used in a vehicle steering wheel to limit the rotation angles of the steering wheel in the clockwise and counterclockwise directions. In this example, the steering wheel is drivingly connected with the rotating member 10.

[0038] The corner limiter 20 is linked with the rotating member 10. Specifically, the corner limiter 20 includes a guiding member 21 and a transmission member 22. When installed in a vehicle, the guiding member 21 remains stationary relative to the vehicle frame. The transmission member 22 is slidably connected with the guiding member 21, that is, the transmission member 22 can slide relative to the guiding member 21, and during the sliding of the transmission member 22, the guiding member 21 is used to guide the displacement of the transmission member 22. In Figure 2 the orientation of the rotating assembly 1 shown, when the rotating member 10 rotates, the transmission member 22 of the corner limiter 20 receives the force exerted by the spiral groove 101, and under the guidance of the guiding member 21, it will move along the axial direction of the rotating member 10, that is, move left or right. It can be understood that the moving direction of the transmission member 22 is defined by the rotation direction of the rotating member 10. In one example, fromFigure 1 When observing from the left end face of the rotating member 10 as shown, when the rotating member 10 rotates clockwise, the transmission member 22 will move leftward along the axial direction of the rotating member; when the rotating member 10 rotates counterclockwise, the transmission member 23 will move rightward along the axial direction of the rotating member. That is to say, the transmission member 22 is linked with the rotating member 10. Therefore, in the rotating assembly 1 of the present utility model, via the spiral groove 101 on the rotating member 10, the rotational motion of the rotating member 10 is converted into the linear motion of the transmission member 22.

[0039] As an example, as Figure 2 shown, the following settings can be made: the extension length of the spiral groove 101 in the axial direction of the rotating member 10 is adapted to the slidable range of the transmission member 22 in the guiding member 21. That is to say, the slidable distance of the transmission member 22 in the guiding member 21 is approximately equal to the axial length of the spiral groove 101. In order to increase flexibility to adapt to different working conditions requirements, all or only a part of the slidable distance of the transmission member 22 needs to be selected as the actual sliding distance of the transmission member 22. Correspondingly, the rotation angle of the rotating member 10 is adjusted to meet different needs. This will be described in detail below.

[0040] Figure 3 Schematically shows a member in the rotating assembly according to an embodiment of the present utility model. Figure 4 Schematically shows another member in the rotating assembly according to an embodiment of the present utility model. Figure 5 Schematically shows another member in the rotating assembly according to an embodiment of the present utility model. The following will continue to describe the rotating assembly 1 in detail in conjunction with Figure 3 , Figure 4 and Figure 5 Continue to describe the rotating assembly 1 in detail.

[0041] As Figure 3 shown, the transmission member 22 includes a sliding fit portion 220 and an extension portion 222. The sliding fit portion 220 can slide in the guiding member 21, and the extension portion 222 is connected to the sliding fit portion 220. Specifically, the sliding fit portion 220 includes a main body portion 221 and a guiding portion 223 fixed to the shaft end of the main body portion 221. In one example, the extension portion 222 and the main body portion 221 can be integrally formed as one member; of course, the extension portion and the main body portion can be two separate members and fixedly connected together. In the figure, the length direction of the main body portion 221 is approximately the left - right direction, and the length direction of the extension portion 222 is approximately the up - down direction. In other words, the length direction of the main body portion 221 is approximately perpendicular to the length direction of the extension portion 222. Therefore, the transmission member 22 is generally in a "T" - shaped structure.

[0042] Combined with Figure 2 and Figure 3As shown, the main body portion 221 of the transmission member 22 is received in the inner cavity of the guide member 21 (refer to Figure 2 shown), and the upper part of the extension portion 222 is connected to the main body portion 221, and the lower part of the extension portion 222 is positioned in the spiral groove 101 of the rotating member 10. When the rotating member 10 rotates, the side surface of the spiral groove 101 applies a force to the lower part of the extension portion 222. Under the action of this force applied by the spiral groove 101, the extension portion 222 moves relative to the spiral groove 101 along the extending direction of the spiral groove 101, and under the guiding action of the guide member 21, the movement of the transmission member 22 is restricted to a sliding along the axial direction of the rotating member 10 relative to the rotating member 10.

[0043] The rotating member 10 further includes a stopper 11 fixed at a predetermined position in the spiral groove 101. In one example, stoppers 11 are provided at two predetermined positions respectively, as Figure 2 shown, a stopper 11 is provided at each of the left end and the right end of the spiral groove 101. The stopper 11 located at the left end is used to limit the rotation angle of the rotating member 10 in the first rotation direction, and the stopper 11 located at the right end is used to limit the rotation angle of the rotating member 10 in the second rotation direction, and the first rotation direction and the second rotation direction (for example, the clockwise direction and the counterclockwise direction) are opposite. During operation, the rotating member 10 rotates, and the transmission member 22 is linked with the rotating member 10 until it is displaced to a predetermined position relative to the spiral groove 101 and abuts against the stopper 11. The stopper 11 can prevent the further movement of the transmission member 22 in the spiral groove 101, and the transmission member 22 stops moving, resulting in the spiral groove 101 being unable to continue rotating, thereby preventing the rotating member 10 from further rotating.

[0044] Of course, as an alternative example, the stopper can also be provided on the guide member 21, which is positioned on the path where the transmission member 22 slides along the guide member 21. Similarly, when the transmission member 22 moves to a position where it abuts against the stopper, the transmission member 22 cannot continue to move, and correspondingly, the rotating member 10 cannot continue to rotate, thereby limiting the rotation angle of the rotating member 10.

[0045] Therefore, in the rotating assembly of the present utility model, the rotation angle of the rotating member is restricted by the interaction between the transmission member and the spiral groove. Therefore, this rotation angle limiter has the characteristics of simple structure, low cost, and small weight.

[0046] According to an embodiment of the present utility model, the stopper 11 is provided with a contour surface 11A that abuts against the transmission member 22, and the contour surface 11A is adapted to the shape of the portion of the transmission member 22 that abuts against the stopper 11, that is, the outer surface of the lower part of the extension portion 222. For example, the contour surface 11A of the stopper 11 is an arc surface to be adapted to the cylindrical outer side surface of the extension portion 222. It can be understood that the above design can ensure that the area of the contact surface between the stopper and the extension portion is relatively large, which is beneficial to the extension portion being subjected to a uniformly distributed resistance applied by the stopper, thereby ensuring a smooth stopping process of the transmission member.

[0047] As an example, the stopper 11 is fixed at a predetermined position of the spiral groove 101 in a detachable manner. For example, a plurality of threaded holes are provided at intervals on the spiral groove 101, and the stopper 11 has a threaded portion that cooperates with the above-mentioned threaded holes. By cooperating with different threaded holes, the stopper 11 is fixed at different predetermined positions of the spiral groove 101; for another example, positioning grooves are provided on the spiral groove 101, and the stopper 11 is fixed at different parts of the positioning groove by means of a locking member (such as a pin), and thus is fixed at different predetermined positions of the spiral groove 101.

[0048] Combined Figure 2 and Figure 3 As shown, the main body portion 221 and the guiding portion 223 of the sliding fitting portion 220 are located in the inner cavity of the guiding member 21, and the guiding portion 222 and the main body portion 221 are formed of different materials. It can be understood that the guiding portion 223 actually serves as a part of the transmission member 22 and moves together with it during the sliding of the transmission member 22. In one example, the guiding portion 222 is made of nylon material. On the contrary, considering the required stiffness, the transmission member 22 is usually made of steel. Compared with the solution in which the portions of the transmission member 22 at both ends of the main body portion 221 are made of steel, providing guiding portions made of nylon material at both ends of the main body portion is beneficial to reducing the friction between the transmission member 22 and the guiding member 21 and reducing the friction noise during the sliding of the transmission member 22.

[0049] According to an embodiment of the present utility model, the guiding portion 223 is configured to be detachably connected to the main body portion 221 via a mating structure. Specifically, the mating structure includes a first mating portion provided on the guiding portion 223 and a second mating portion provided on the main body portion 221. And the first mating portion is configured as a claw 2231, and the second mating portion is configured as a slot 224. In one example, for a firm connection, a plurality of claws 2231 evenly distributed in the circumferential direction are provided at one end of the guiding portion 223, and a complete circle of slots 224 extending in the circumferential direction of the main body portion 221 are provided. The inner convex portions 2231A of the plurality of claws 2231A are snapped into the slots 224, thereby fixing the guiding portion 223 to the main body portion 221. Of course, the above fixing method is only an example, and the guiding portion 223 can be fixed to the main body portion 221 by other means. For example, slots can also be provided on the guiding portion and corresponding claws can be provided on the main body portion. At the same time, the section of the guiding portion provided with the slots has a smaller outer diameter than the remaining sections, thereby avoiding interference with the sliding of the guiding portion along the inner cavity of the guiding member.

[0050] As Figure 5 shown, the guiding member 21 has a base plate 21A and a first side plate 21B and a second side plate 21C connected to the base plate 21A. In one example, the first side plate 21B and the second side plate 21C can be integrally formed into one member. Of course, they can also be two separate members. One side of each of the first side plate 21B and the second side plate 21C is fixed to the base plate 21A, and an opening is formed on the other side, and the transmission member 22 extends out from the opening. The inner cavity of the guiding member 21 includes a flat inner wall surface 2111 and a concave inner wall surface 2112. A flat surface 221A is provided on the main body portion 221, and the flat surface 221A is disposed opposite to the flat inner wall surface 2111. When the extension portion 222 abuts against the stopper 11, the two abut against each other to prevent the rotating member 10 from further rotating. And, in one example, the guiding portion 223 has a cylindrical outer peripheral surface. Correspondingly, the concave inner wall surface 1221 is configured as different sections of a cylindrical surface. The cylindrical concave inner wall surface 1221 fits and matches with the cylindrical guiding portion 223, thereby sliding along the concave inner wall surface 2112. That is to say, the concave inner wall surface 2112 is used to guide the sliding of the guiding portion 223. It can be understood that by setting the concave inner wall surface to have a cylindrical shape and the guiding portion to have a cylindrical shape, during the sliding of the guiding portion along the concave inner wall surface, it is ensured that the interaction force between the guiding portion and the concave inner wall surface is evenly distributed on these two members, which is beneficial for the guiding member to provide smooth guidance to the guiding portion and improves its service life.

[0051] According to an embodiment of the present utility model, each of the first side plate 21B and the second side plate 21C is provided with a pair of flat inner wall surfaces 2111 and concave inner wall surfaces 2112, and the pair of flat inner wall surfaces 2111 are arranged on both sides of the concave inner wall surfaces 2112 in a direction perpendicular to the sliding direction of the transmission member 22. It can be understood that the first side plate 21B and the second side plate 21C have a symmetrical design. Specifically, a pair of flat inner wall surfaces (blocked and not shown) are provided on the first side plate 21B. Similarly, a pair of flat inner wall surfaces 2111 are provided on the second side plate 21C, and the pair of flat inner wall surfaces 2111 are respectively arranged on both sides of the concave inner wall surfaces 2112. This arrangement has the following functions: when the spiral groove 101 rotates clockwise, the flat inner wall surface of the first side plate 21B can prevent the transmission member 22 from rotating; when the spiral groove 101 rotates counterclockwise, the flat inner wall surface 2111 on the second side plate 21C can prevent the transmission member 22 from rotating. Moreover, when the transmission member 22 is blocked by the stopper 11, the flat inner wall surfaces on each of the first side plate 21B and the second side plate 21C can provide support for the transmission member 22. In particular, for Figure 3 the transmission member 22 in the placement orientation shown in, the upper flat surface 221A, the lower flat surface 221A, and the extension portion 222 together form a mechanism similar to a labor-saving lever: when the extension portion 222 abuts against the stopper 11, both the upper flat surface 221A and the lower flat surface 221A interact with the guide member 21. Regarding the force application point between the lower flat surface 221A and the guide member 21 as the fulcrum, compared with the main body portion without the upper flat surface, the sliding fit portion 220 is farther from the fulcrum at the upper flat surface 221A, so the force it bears is smaller. This is beneficial to increasing the stopping torque that the transmission member 22 can withstand from the stopper 11, and also increases the maximum strength of the guide member 21 and improves the service life of the guide member 21. In this case, the guiding portion 223 will not be squeezed and damaged, which improves the service life of the guiding portion 223. The above design ensures that the corner limiter has high safety and reliability.

[0052] In one example, the flat inner wall surfaces 2111 on the first side plate 21B and the second side plate 21C are configured as different segments of a rectangle; in another example, the flat inner wall surfaces 2111 on the first side plate 21B and the second side plate 21C are configured as different segments of a trapezoid, or different segments of a hexagon, an octagon or other polygons. It should be noted that the first contour surface on the inner side of the guide member 21 is not limited to the above-mentioned flat inner wall surface, and the second contour surface on the outer side of the main body portion 221 is not limited to the above-mentioned flat surface, as long as the first contour surface and the second contour surface prevent the transmission member 22 from rotating around the axis of the rotating member 10 by means of form fit. For example, when the cross-sections of both the first side plate and the second side plate in the axial direction perpendicular to the rotating member have a non-rotationally symmetric design, the first contour surface and / or the second contour surface can also be set as a curved surface.

[0053] As described above, although the exemplary embodiments of the present invention have been described with reference to the accompanying drawings in the description, the present invention is not limited to the above specific embodiments, and the protection scope of the present invention should be defined by the claims and their equivalent meanings.

Claims

1. A rotating assembly (1), comprising: A rotating member (10) having a helical groove (101) provided on its outer peripheral surface; A corner limiter (20) that is linked with the rotating member (10) and limits the rotation angle of the rotating member (10), Characterized in that: The corner limiter (20) includes a guide member (21) and a transmission member (22) slidably connected to the guide member (21). A part of the transmission member (22) is positioned in the helical groove (101). When the rotating member (10) rotates, under the guiding action of the guide member (21), the transmission member (22) slides relative to the rotating member (10) along the axial direction of the rotating member (10), and, It further includes a stopper (11) provided on one of the guide member (21) and the rotating member (10). The stopper (11) is used to limit the extreme position during the displacement of the transmission member (22) relative to the helical groove (101).

2. The rotating assembly (1) according to claim 1, wherein The stopper (11) is detachably fixed at a predetermined position in the helical groove (101) or the guide member (21).

3. The rotating assembly (1) according to claim 1, characterized in that, The transmission member (22) includes a sliding fit portion (220) and an extension portion (222). The sliding fit portion (220) is received in the inner cavity of the guide member (21), and the extension portion (222) is connected to the sliding fit portion (220) and a part of it is positioned in the helical groove (101) of the rotating member (10).

4. The rotating assembly (1) according to claim 3, wherein The sliding fit portion (220) includes a main body portion (221) and a guiding portion (223) fixed to the shaft end of the main body portion (221), and the guiding portion (223) and the main body portion (221) are formed of different materials.

5. The rotating assembly (1) according to claim 4, characterized in that, The guiding portion (223) is configured to be detachably connected to the main body portion (221) via a fitting structure.

6. The rotating assembly (1) according to claim 5, characterized in that, The fitting structure includes a first fitting portion provided on the guiding portion (223) and a second fitting portion provided on the main body portion (221), and one of the first fitting portion and the second fitting portion is configured as a claw (2231) and the other is configured as a slot (224).

7. The rotating assembly (1) according to claim 4, characterized in that, A first contour surface is provided on the inner side of the guide member (21), and a second contour surface is provided on the outer side of the main body portion (221). The first contour surface and the second contour surface prevent the transmission member (22) from rotating around the axis of the rotating member (10) in a form-fitting manner.

8. The rotating assembly (1) according to claim 7, wherein The first contour surface includes a flat inner wall surface (2111) and a concave inner wall surface (2112). The outer peripheral surface of the guiding portion (223) is adapted to the concave inner wall surface (2112) and is guided by the concave inner wall surface (2112) to slide. The second contour surface includes a flat surface (221A) on a partial section of the main body portion (221). The flat surface (221A) is disposed opposite to the flat inner wall surface (2111) and when the extension portion (222) abuts against the stopper (11), the two abut against each other.

9. The rotating assembly (1) according to claim 8, characterized in that, A pair of the flat inner wall surfaces (2111) are disposed on both sides of the concave inner wall surface (2112) in a direction perpendicular to the sliding direction of the transmission member (22).

10. The rotating assembly (1) according to claim 2, wherein, The stopper (11) is disposed in the spiral groove (101). The stopper (11) is provided with a contour surface (11A) that abuts against the transmission member (22), and the contour surface (11A) is adapted to the outer surface shape of the portion of the transmission member (22) that abuts against the stopper (11).

11. The rotating assembly (1) according to claim 9, characterized in that, The guide member (21) has a substrate (21A) and a first side plate (21B) and a second side plate (21C) connected to the substrate (21A), and each of the first side plate (21B) and the second side plate (21C) is provided with a pair of the flat inner wall surfaces (2111) and the concave inner wall surfaces (2112).

12. The rotating assembly (1) according to claim 10, characterized in that, The extension length of the spiral groove (101) in the axial direction of the rotating member (10) is adapted to the slidable range of the transmission member (22) in the guide member (21). and / or When installed in a vehicle, the guide member (21) remains stationary relative to the vehicle frame.

13. The rotating assembly (1) according to claim 6, characterized in that, One end of the guiding portion (223) is provided with a plurality of claws (2231) evenly distributed in its circumferential direction, and the main body portion (221) is provided with the slot (224) extending in its circumferential direction.

14. The rotating assembly (1) according to claim 11, characterized in that, The concave inner wall surfaces (2112) on both the first side plate (21B) and the second side plate (21C) are configured as different segments on a cylindrical surface.

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