Rotating shaft structure with angle limiting function and display equipment

Abstract

The embodiment of the utility model relates to a rotating shaft structure with angle limiting and display equipment, and belongs to the technical field of rotating shaft structures. The rotating shaft structure with the angle limiting function comprises a rotating shaft, an adjusting piece, a fixing frame and an elastic piece. The first limiting piece and the second limiting piece are arranged between the elastic piece and the adjusting piece; wherein the first limiting piece is rotatably arranged on the rotating shaft in a sleeving manner, and is connected with the fixing part of the fixing frame in a clamping manner; the second limiting piece is sleeved on the rotating shaft in a non-rotating manner; the first limiting piece is provided with a first limiting structure, the second limiting piece is provided with a second limiting structure, and the first limiting structure can be matched with the second limiting structure to limit rotation of the rotating shaft relative to the fixing frame, so that the rotating shaft is limited at the position of a first limiting angle relative to the fixing frame. According to the angle limiting rotating shaft structure, the rotating shaft can be stably limited to rotate relative to the fixing frame, and the rotating shaft is stably kept at the position of a specific angle relative to the fixing frame.

Description

Technical Field

[0001] The embodiments of the utility model relate to the technical field of rotating shaft structures, and in particular to a rotating shaft structure with angle limiting and a display device. Background Art

[0002] In the related art, a display screen (or other movable part) is mounted on a fixed part (such as a housing or a bracket for mounting the display screen) via a rotating shaft structure.

[0003] The hinge structure in the related art usually has a limiting structure with only one angle (i.e., the maximum rotation range limit). If the display screen (or other movable part) stops within the rotation range (at the middle position of the rotation range) relative to the fixed part, that is, the display screen stops rotating relative to the fixed part so that the display screen is kept at a certain rotation angle relative to the fixed part, then the friction force of the damping plate (gasket) on the hinge structure is required to maintain stability. In order to keep the display screen stable at a specific rotation angle relative to the fixed part, it is required that the damping plate of the damping assembly on the hinge structure can provide sufficient friction, which places high demands on the hardness and surface treatment of the damping plate. After the display screen (or other movable part) is opened relative to the fixed part, there is a lack of a movable locking function after opening to a certain angle, and there is a problem that the opening angle of the display screen (or other movable part) and the fixed part is not fixed. Utility Model Content

[0004] Based on this, the purpose of the embodiment of the utility model is to provide a rotating shaft structure with an angle limit, which can stably limit the rotation of the rotating shaft relative to the fixing frame, so that the rotating shaft can be stably maintained at a specific angle relative to the fixing frame.

[0005] In order to achieve the above object, the embodiment of the utility model is implemented through the following technical solutions:

[0006] A rotating shaft structure with angle limit, comprising a rotating shaft, an adjusting member, a fixing frame and an elastic member; the rotating shaft is provided with a step surface; the adjusting member is mounted on the rotating shaft and the distance from the step surface is adjustable; the fixing frame comprises a rotating part and a fixing part; the rotating part is rotatably sleeved on the rotating shaft and can slide along the axial direction of the rotating shaft; the rotating part and the elastic member are clamped between the step surface and the adjusting member; the fixing part is spaced from the rotating shaft and fixedly connected to the rotating part; the rotating shaft structure with angle limit also comprises a first limiting member and a second limiting member. Limiting member; the first limiting member and the second limiting member are clamped between the elastic member and the adjusting member; wherein, the first limiting member is rotatably mounted on the rotating shaft and is engaged with the fixing portion; the second limiting member is non-rotatably mounted on the rotating shaft; the first limiting member is provided with a first limiting structure, and the second limiting member is provided with a second limiting structure, the first limiting structure can cooperate with the second limiting structure to limit the rotation of the rotating shaft relative to the fixing frame, so that the rotating shaft is limited to a position of a first limiting angle relative to the fixing frame.

[0007] The rotating shaft structure with angle limit described in the embodiment of the utility model is based on the fact that the rotating part and the elastic part are clamped on the step surface of the rotating shaft and the adjusting part. By adding the first limit member and the second limit member, the first limit member and the second limit member are clamped between the elastic part and the adjusting part, and the various components are pressed by the elastic part to form rotational damping; and the rotational damping between the rotating shaft and the fixed frame can be changed by adjusting the distance between the adjusting part and the step surface.

[0008] A rotation damping is formed between the first limiter and the second limiter, and the rotation damping is indirectly converted into the rotation damping between the rotating shaft and the fixing frame. The first limiter is rotatably mounted on the rotating shaft and is engaged with the fixing portion; the second limiter is non-rotatably mounted on the rotating shaft, that is, the second limiter is non-rotatable relative to the rotating shaft; due to the effect of the elastic member being in a compressed state, the first limiter and the second limiter are in contact with each other to form a rotation damping. When the rotating shaft needs to be stably stopped at a position of a certain rotation angle relative to the fixed frame (that is, stably limited at the position of the first limit angle), in the related technology, the stable limiting is mainly performed by the friction between the first limit member and the second limit member. The rotating shaft structure with angle limiting in the embodiment of the utility model takes into account that the first limit member and the second limit member are easily affected by the friction force for a long time, resulting in wear or even failure, thereby causing the rotating shaft to be unable to be stably limited at the position of the first limit angle relative to the fixed frame. Therefore, the embodiment of the utility model designs a first limiting structure on the first limiting member and a second limiting structure on the second limiting member, and utilizes the cooperation and abutment between the first limiting structure and the second limiting structure to limit the rotation of the rotating shaft relative to the fixed frame, so that the rotating shaft is stably limited (stopped) at the position of the first limit angle relative to the fixed frame.

[0009] The rotating shaft structure with angle limit described in the embodiment of the utility model, when in use, the rotating shaft is fixedly connected to a movable part (such as a display screen), and the fixed part of the fixed frame is fixedly connected to a fixed part (such as a housing or a bracket for mounting a display screen, etc.), so that the movable part is installed on the fixed part through the rotating shaft structure with angle limit described in the embodiment of the utility model. Among them, the first limit structure cooperates with the second limit structure to limit the rotation of the second limit part relative to the first limit part, thereby limiting the rotation of the rotating shaft relative to the fixed frame, so that the rotating shaft is stably limited (stopped) at the position of the first limit angle relative to the fixed frame, and then the movable part is stably limited (stopped) at the position of the corresponding rotation angle relative to the fixed part.

[0010] As a preferred solution of this embodiment, the first position-limiting member can slide along the axial direction of the rotating shaft, and the outer periphery of the first position-limiting member is provided with a snap-fitting portion; the fixed portion is provided with a snap-fitting groove or a snap-fitting hole, and the snap-fitting groove or the snap-fitting hole extends on the fixed portion in a direction parallel to the axial direction. The snap-fitting portion of the first position-limiting member cooperates with the fixed snap-fitting groove or the snap-fitting hole so as to snap-fit ​​the first position-limiting member to the fixed portion of the fixed frame. When it is necessary to adjust the distance between the adjusting member and the step surface, or when it is necessary to adjust the axial position of the first position-limiting member on the rotating shaft, the snap-fitting portion of the first position-limiting member can move in the snap-fitting groove or the snap-fitting hole, so that after adjusting the axial position of the rotating shaft, the first position-limiting member can also be conveniently snap-fitted with the snap-fitting groove or the snap-fitting hole of the fixed portion.

[0011] As a preferred solution, the first position-limiting member is a first position-limiting gasket, and the second position-limiting member is a second position-limiting gasket. Both the first position-limiting member and the second position-limiting member can be designed with gaskets for corresponding structures.

[0012] As a preferred solution, the first limiting member is clamped between the second limiting member and the adjusting member; the second limiting member is clamped between the elastic member and the first limiting member; the first limiting structure includes a first limiting groove provided on the first limiting member facing the second limiting member, and the second limiting structure includes a first limiting protrusion provided on the second limiting member facing the first limiting member. The first limiting protrusion can cooperate with the first limiting groove to limit the rotation of the second limiting member relative to the first limiting member, thereby limiting the rotation of the shaft relative to the fixing frame, so that the shaft is stably limited (stopped) at the first limiting angle relative to the fixing frame.

[0013] As a preferred solution, the rotating shaft structure with angle limit also includes a third limit piece; the third limit piece is non-rotatably sleeved on the rotating shaft and clamped between the step surface and the rotating part; the third limit piece is provided with a third limit structure, and the rotating part is provided with a fourth limit structure, and the third limit structure can cooperate with the fourth limit structure to limit the rotation of the rotating shaft relative to the fixed frame, so that the rotating shaft is limited to a position of a second limit angle relative to the fixed frame; the second limit angle is the same as or different from the first limit angle; when the second limit angle is the same as the first limit angle, the rotating shaft is limited to the first limit angle relative to the fixed frame. When the second limiting angle is different from the first limiting angle, the rotating shaft is limited at the first limiting angle relative to the fixed frame, the second limiting structure cooperates with the first limiting structure, and the third limiting structure cooperates with the fourth limiting structure; when the second limiting angle is different from the first limiting angle, the rotating shaft is limited at the first limiting angle relative to the fixed frame, the second limiting structure cooperates with the first limiting structure, and the third limiting structure does not cooperate with the fourth limiting structure; when the second limiting angle is different from the first limiting angle, the rotating shaft is limited at the second limiting angle relative to the fixed frame, the third limiting structure cooperates with the fourth limiting structure, and the second limiting structure does not cooperate with the first limiting structure. The embodiment of the utility model designs the third limiting structure and the fourth limiting structure, so that the rotating shaft structure with angle limiting of the embodiment of the utility model can limit the rotation of the rotating shaft relative to the fixed frame through different structural cooperation, so that the rotating shaft is stably limited (stopped) at the first limiting angle or the second limiting angle relative to the fixed frame.

[0014] As a preferred solution, the third position-limiting member is a third position-limiting gasket. The third position-limiting member can be designed with a corresponding structure by using a gasket.

[0015] As a preferred solution, the third limiting structure includes a limiting portion provided on the outer periphery of the third limiting member and protruding outward, and a second limiting groove is provided on the side wall of the limiting portion; the fourth limiting structure includes a second limiting protrusion provided on the rotating portion and facing the third limiting member. The second limiting protrusion and the second limiting groove cooperate to limit the rotation of the third limiting member relative to the rotating portion, thereby limiting the rotation of the rotating shaft relative to the fixing frame, so that the rotating shaft is limited at a position of a second limiting angle relative to the fixing frame.

[0016] As a preferred solution, the rotating shaft structure with angle limit also includes a fourth limit piece; the fourth limit piece is non-rotatably sleeved on the rotating shaft and clamped between the rotating part and the elastic member; the fourth limit piece is provided with a fifth limit structure, and the rotating part is provided with a sixth limit structure, and the fifth limit structure can cooperate with the sixth limit structure to limit the rotation of the rotating shaft relative to the fixed frame, so that the rotating shaft is limited to a position of a third limit angle relative to the fixed frame; the third limit angle is the same as or different from the first limit angle; when the third limit angle is the same as the first limit angle, the rotating shaft is limited to the first limit angle relative to the fixed frame. When the rotating shaft is at the position of the first limiting angle, the second limiting structure cooperates with the first limiting structure, and the fifth limiting structure cooperates with the sixth limiting structure; when the third limiting angle is different from the first limiting angle, the rotating shaft is limited at the position of the first limiting angle relative to the fixed frame, the second limiting structure cooperates with the first limiting structure, and the fifth limiting structure does not cooperate with the sixth limiting structure; when the third limiting angle is different from the first limiting angle, the rotating shaft is limited at the position of the third limiting angle relative to the fixed frame, the fifth limiting structure cooperates with the sixth limiting structure, and the second limiting structure does not cooperate with the first limiting structure. The embodiment of the utility model designs the fifth limiting structure and the sixth limiting structure, so that the rotating shaft structure with angle limiting of the embodiment of the utility model can limit the rotation of the rotating shaft relative to the fixed frame through different structural cooperation, so that the rotating shaft is stably limited (stopped) at the position of the first limiting angle, the second limiting angle or the third limiting angle relative to the fixed frame, and the function of multi-angle limiting is realized.

[0017] As a preferred solution, the fourth position limiting member is a fourth position limiting gasket. The fourth position limiting member can be designed with a corresponding structure using a gasket.

[0018] As a preferred solution, the fifth limiting structure includes a third limiting protrusion provided on the fourth limiting member and facing the rotating part; the sixth limiting structure includes a third limiting groove provided on the rotating part and facing the fourth limiting member. Through the cooperation of the third limiting protrusion and the fourth limiting groove, the rotation of the fourth limiting member relative to the rotating part is limited, and the rotation of the rotating shaft relative to the fixing frame is further limited, so that the rotating shaft is limited at a position of the third limiting angle relative to the fixing frame.

[0019] As a preferred solution, the first limiting angle and the third limiting angle are different from the second limiting angle, and the first limiting angle and the third limiting angle are smaller than the second limiting angle; the first limiting angle and the third limiting angle are the same or different. As a preferred solution, the second limiting angle is the angle corresponding to the position of the rotating shaft relative to the fixing frame at the maximum rotation amplitude. In the related design, similar designs of the third limiting member, the third limiting structure, and the fourth limiting structure are also provided, which will not be described in detail here.

[0020] As a preferred solution, the first limiting angle is 90 or 115°, the third limiting angle is 90°, and the second limiting angle is 140°. The above limiting angles do not represent limitations on the embodiments of the utility model, and those skilled in the art can also set other limiting angles according to actual needs.

[0021] As a preferred solution, the rotating shaft includes a first rotating shaft section, a second rotating shaft section, and a third rotating shaft section which are connected in sequence; the first rotating shaft section is provided with a movable part installation connection structure; the connection between the second rotating shaft section and the third rotating shaft section forms the step surface; the adjusting member, the rotating part, the elastic member, the first limiting member, and the second limiting member are all arranged on the third rotating shaft section; the fixed part is provided with a first installation connection structure. The first installation connection structure of the first rotating shaft section is used to fix and install the movable part (such as a display screen); the second installation connection structure of the fixed part is used to fix and install the fixed part (such as a housing or a bracket for installing a display screen).

[0022] The embodiment of the utility model also provides a display device, comprising any of the above-mentioned rotating shaft structures with angle limits, a display screen, and a bracket; the display screen is connected to the bracket via the rotating shaft structure with angle limits; wherein: the display screen is fixedly connected to the rotating shaft of the rotating shaft structure with angle limits; the bracket is fixedly connected to the fixed part of the rotating shaft structure with angle limits. The specific application scenarios of the rotating shaft structure with angle limits described in the embodiment of the utility model are not limited, and those skilled in the art can also use it in the connection structure between other movable parts and fixed parts according to actual needs.

[0023] Compared with the prior art, the beneficial effects are:

[0024] The rotating shaft structure with angle limit of the embodiment of the utility model utilizes the first limiting structure to cooperate with the second limiting structure to limit the rotation of the rotating shaft relative to the fixed frame, so that the rotating shaft is limited to the position of the first limiting angle relative to the fixed frame; the third limiting structure is cooperated with the fourth limiting structure to limit the rotation of the rotating shaft relative to the fixed frame, so that the rotating shaft is limited to the position of the second limiting angle relative to the fixed frame; the fifth limiting structure is cooperated with the sixth limiting structure to limit the rotation of the rotating shaft relative to the fixed frame, so that the rotating shaft is limited to the position of the third limiting angle relative to the fixed frame. The rotating shaft structure with angle limit in the embodiment of the utility model can limit the rotation of the rotating shaft relative to the fixing frame according to actual use requirements, so that the rotating shaft is limited at a first limit angle, a second limit angle, or a third limit angle relative to the fixing frame, and then the movable part (such as a display screen) fixedly connected to the rotating shaft is stably limited (stopped) at a position of a corresponding rotation angle relative to the fixing part (such as a housing or a bracket for mounting the display screen) fixedly connected to the fixing part of the fixing frame, thereby realizing the function of multi-angle limit of the product, reducing the shaking amount of the product, and improving the service life of the product.

[0025] For better understanding and implementation, the embodiments of the utility model are described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a structural schematic diagram of a rotating shaft structure with angle limiter according to an embodiment of the utility model;

[0027] Figure 2 An exploded view of a rotating shaft structure with angle limit according to an embodiment of the utility model;

[0028] Figure 3 A schematic diagram of the structure of the first limiting member facing the second limiting member;

[0029] Figure 4 for Figure 3 The main view;

[0030] Figure 5 It is a schematic diagram of the structure of the second limiting member facing the first limiting member;

[0031] Figure 6 It is a schematic structural diagram of the rotating part of the fixing frame facing the third limiting member;

[0032] Figure 7 It is a structural schematic diagram of the side surface of the rotating part of the fixing frame facing the fourth limiting member;

[0033] Figure 8 is a front view of the third limiting member;

[0034] Fig. 9 is a schematic structural diagram of a side of the fourth limiting member facing the rotating part of the fixing frame;

[0035] Fig.10 is a structural schematic diagram of the rotating shaft being limited at a position of 0° relative to the fixing frame;

[0036] Fig.11 It is a structural schematic diagram of the position where the rotating shaft is limited at a first limiting angle (90°) relative to the fixing frame;

[0037] Fig.12 It is a structural schematic diagram of the position where the rotating shaft is limited at a second limiting angle (115°) relative to the fixing frame;

[0038] Fig.13 is a structural schematic diagram of a position where the rotating shaft is limited at a third limiting angle (140°) relative to the fixing frame;

[0039] In the figure: shaft 1; step surface 11; first shaft section 12; movable part positioning and mounting hole 121; second shaft section 13; third shaft section 14; thread 15; adjusting member 2; fixing frame 3; rotating part 31; fourth limiting structure 311; second limiting protrusion 3111; sixth limiting structure 312; third limiting groove 3121; fixing part 32; engaging hole 321; fixing part positioning and mounting hole 322; elastic member 4; spring gasket 41; first limiting member 5; first limiting structure 51; first limiting groove 511; engaging part 52; second limiting member 6; second limiting structure 61; first limiting protrusion 611; third limiting member 7; third limiting structure 71; limiting part 711; second limiting groove 7111; fourth limiting member 8; fifth limiting structure 81; third limiting protrusion 811, flat gasket 9. DETAILED DESCRIPTION

[0040] In the description of the embodiments of the present invention, it needs to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0041] In addition, the terms first, second, third, etc. in the specification and claims are only used for the purpose of describing the same technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated, nor necessarily describing the order or time sequence. The terms are interchangeable where appropriate. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0042] Similarly, the term "connection" is also used in the specification and claims, which should not be interpreted as limited to direct connection. Therefore, the expression "device A is connected to device B" should not be limited to the device A being directly connected to device B in the device or system, which means that there is a path between device A and device B, which may be a path including other devices or tools.

[0043] In the related art, a movable part (such as a display screen) is usually connected to a fixed part (such as a component for mounting a display screen, such as a housing, a bracket, etc.) through a hinge structure. In order to keep the movable part stably at a specific rotation angle relative to the fixed part, the damping plate (gasket) on the hinge structure is required to provide sufficient friction, which places high demands on the hardness and surface treatment of the damping plate. However, the friction of the damping plate (gasket) alone for stable limiting is not enough to keep the movable part firmly at the rotation angle relative to the fixed part. In the hinge structure of the related art, after the movable part is opened relative to the fixed part, there is a lack of a movable locking function after opening to a certain angle, resulting in the problem of an unfixed opening angle between the movable part and the fixed part.

[0044] Therefore, the embodiment of the utility model designs a rotating shaft structure with an angle limit, which can stably limit the rotation of the rotating shaft relative to the fixing frame, so that the rotating shaft can be stably maintained at a position at a specific angle relative to the fixing frame.

[0045] See also Figure 1 and Figure 2 , a rotating shaft structure with angle limit in the embodiment of the utility model comprises a rotating shaft 1, an adjusting member 2, a fixing frame 3, and an elastic member 4. Figure 2 The rotating shaft 1 is provided with a step surface 11; the adjusting member 2 is mounted on the rotating shaft 1 and the distance between the adjusting member 2 and the step surface 11 is adjustable; the fixing frame 3 includes a rotating portion 31 and a fixing portion 32; the rotating portion 31 is rotatably mounted on the rotating shaft 1 and can slide along the axial direction of the rotating shaft 1; the rotating portion 31 and the elastic member 4 are clamped between the step surface 11 and the adjusting member 2; the fixing portion 32 is spaced from the rotating shaft 1 and fixedly connected to the rotating portion 31. Figure 1 and Figure 2The rotating shaft structure with angle limit in the embodiment of the utility model further includes a first limiter 5 and a second limiter 6; the first limiter 5 and the second limiter 6 are sandwiched between the elastic member 4 and the adjusting member 2. The first limiter 5 is rotatably mounted on the rotating shaft 1, and its outer periphery is engaged with the fixing portion 32. The second limiter 6 is non-rotatably mounted on the rotating shaft 1. Please refer to Figure 3 and Figure 4 The first limiting member 5 is provided with a first limiting structure 51, see Figure 5 , the second limiting member 6 is provided with a second limiting structure 61, and the first limiting structure 5 can cooperate with the second limiting structure 6 to limit the rotation of the rotating shaft 1 relative to the fixing frame 3. In the embodiment of the utility model, the first limiting member 5 is a first limiting gasket, and the second limiting member 6 is a second limiting gasket. The first limiting member 5 and the second limiting member 6 are designed with gaskets for corresponding structures. In the rotating shaft structure with angle limitation of the embodiment of the utility model, when in use, the rotating shaft 1 is fixedly connected to the movable part (such as a display screen), and the fixing part 32 of the fixing frame 3 is fixedly connected to the fixing part (such as a shell or bracket for installing the display screen, etc.), so that the movable part is installed on the fixing part through the rotating shaft structure with angle limitation of the embodiment of the utility model. According to actual needs, when the rotating shaft 1 needs to be stably stopped and limited at the position of the first limiting angle relative to the fixed frame 3, in the rotating shaft structure of the related art, the friction between the first limiting member 5 and the second limiting member 6 is mainly used for stable limiting. The rotating shaft structure with angle limiting in the embodiment of the utility model takes into account that the first limiting member 5 and the second limiting member 6 are easily affected by the friction for a long time and cause wear or even failure, thereby causing the rotating shaft 1 to be unable to be stably limited at the position of the first limiting angle relative to the fixed frame 3. Therefore, the embodiment of the utility model designs a first limiting structure 51 on the first limiting member 5 and a second limiting structure 61 on the second limiting member 6. The first limiting structure 51 and the second limiting structure 61 are used to cooperate and abut against each other to limit the rotation of the second limiting member 6 relative to the first limiting member 5, so as to limit the rotation of the rotating shaft 1 relative to the fixed frame 3, so that the rotating shaft 1 is stably limited (stopped) at the position of the first limiting angle relative to the fixed frame 3, and then the movable member is stably limited (stopped) at the corresponding rotation angle relative to the fixed member.

[0046] In the related art of the rotating shaft structure, the components usually include the rotating shaft 1, the adjusting member 2, the fixing frame 3 and the elastic member 4. The rotating shaft structure with angle limit in the embodiment of the utility model also includes a first limiter 5 and a second limiter 6. On the basis that the rotating part 31 and the elastic member clamp 4 are tightly attached to the step surface 11 of the rotating shaft 1 and the adjusting member 2, the first limiter 5 and the second limiter 6 are added, and the first limiter 5 and the second limiter 6 are clamped between the elastic member 4 and the adjusting member 2, and then the elastic member 4 is used to press the various components to form rotation damping; and the rotation damping can be adjusted by adjusting the distance between the adjusting member 2 and the step surface 11, so as to adjust the rotation damping between the fixing frame 3 and the rotating shaft 1.

[0047] The first limiting member 5 is rotatably mounted on the rotating shaft 1, and the outer periphery is engaged with the fixing portion 32; the second limiting member 6 is non-rotatably mounted on the rotating shaft 1, that is, the second limiting member 6 is non-rotatable relative to the rotating shaft 1; due to the action of the elastic member, the first limiting member 5 and the second limiting member 6 are in contact with each other, so that a rotation damping is formed between the first limiting member 5 and the second limiting member 6, and is indirectly converted into a rotation damping between the fixing frame 3 and the rotating shaft 1. The rotating shaft structure with angle limit of the embodiment of the utility model is designed with a first limiting structure 51 on the first limiting member 5 and a second limiting structure 61 on the second limiting member 6, and the first limiting structure 51 and the second limiting structure 61 can be used to limit the rotation of the rotating shaft 1 relative to the fixing frame 3 by cooperation, so that the rotating shaft 1 is stably limited (stopped) at the position of the first limiting angle relative to the fixing frame 3.

[0048] See also Figure 2 In the embodiment of the utility model, the rotating shaft 1 includes a first rotating shaft section 12, a second rotating shaft section 13, and a third rotating shaft section 14 connected in sequence. The first rotating shaft section 12 is provided with a first mounting connection structure, specifically, a plurality of movable part positioning mounting holes 121 are provided, which are used for fixed mounting and connection with the movable part (such as a display screen). The connection between the second rotating shaft section 13 and the third rotating shaft section 14 forms the above-mentioned step surface 11. The third rotating shaft section 14 is a flat shaft, which is a cylindrical shaft symmetrically cut into a plane shape on both sides of the outer arc surface. In the embodiment of the utility model, the rotating shaft 1 is provided with a thread 15, specifically, the third rotating shaft section 14 is provided with a thread, and the adjusting member 2 is a nut, which is threadedly connected to the thread of the rotating shaft 1 through the nut, so that the distance between the adjusting member 2 and the step surface 11 can be adjusted by rotating the adjusting member 2.

[0049] In the embodiment of the present utility model, please refer to Figure 2 and Figure 6The rotating part 31 of the fixing frame 3 is connected to the fixing part 32 to form an L-shaped structure. The rotating part 31 is closer to the step surface 11 than the elastic member 4. The rotating part 31 is provided with a through hole so as to be sleeved on the third rotating shaft section 14 of the rotating shaft 1 and slide along the axial direction of the third rotating shaft section 14 of the rotating shaft 1. One end of the fixing part 32 is fixedly connected to the outer periphery of the rotating part 31, and the other end extends in a direction parallel to the axial direction toward one side of the adjusting member 2. The fixing part 32 is provided with a second mounting connection structure, specifically, a fixing member positioning mounting hole 322, which is used for fixed mounting connection with the fixing member.

[0050] In the embodiment of the present utility model, please refer to Figure 3 and Figure 4 , the outer periphery of the first limiting member 5 is provided with a snap-fitting portion 52 protruding outward; Figure 7 , the fixing part 32 is provided with a snap-fitting hole 321 matching with the snap-fitting part 52, and can also be set as a snap-fitting groove in other embodiments of the utility model. In the embodiment of the utility model, the end of the snap-fitting part 52 is square, and the snap-fitting hole 321 is a square hole. The snap-fitting part 52 is inserted into the snap-fitting hole 321, so that the snap-fitting part 52 and the inner wall of the snap-fitting hole 321 are matched, so that the first limiter 5 is snap-fitted and connected with the fixing part 52 of the fixing frame 3. The first limiter 5 can slide along the axial direction of the rotating shaft 1; the snap-fitting hole 321 of the fixing part 32 extends on the fixing part 32 in a direction parallel to the axial direction. When adjusting the distance between the adjusting part 2 and the step surface 11, or when it is necessary to adjust the axial position of the first limiter 5 on the rotating shaft 1, the snap-fitting part 52 of the first limiter 5 can move in the extended snap-fitting hole 321, so that after adjusting the axial position of the first limiter 5 on the rotating shaft 1, it can also be conveniently snap-fitted and connected with the snap-fitting hole 321 of the fixing part 32.

[0051] In the embodiment of the present utility model, please refer to Figure 2 The elastic member 4 is two sets of spring washers (4 in total), which are sleeved on the third shaft section 14 of the shaft 1. In order to compress the elastic member 4 by adjusting the distance between the adjusting member 2 and the step surface 11, a relatively appropriate damping force is provided.

[0052] In the embodiment of the present utility model, please refer to Figure 1 , the first limiting member 5 is sandwiched between the second limiting member 6 and the adjusting member 2; the second limiting member 6 is sandwiched between the elastic member 4 and the first limiting member 5; please refer to Figure 3 and Figure 4 The first limiting structure 51 includes a first limiting groove 511 disposed on the first limiting member 5 and facing the second limiting member 6. Figure 5The second limiting structure 61 includes a first limiting protrusion 611 disposed on the second limiting member 6 and facing the first limiting member 5. The first limiting protrusion 611 cooperates with the first limiting groove 511 to limit the rotation of the second limiting member 6 relative to the first limiting member 5, thereby limiting the rotation of the rotating shaft 1 relative to the fixing frame 51, so that the rotating shaft 1 is stably limited (stopped) at the position of the first limiting angle relative to the fixing frame 3.

[0053] In the embodiment of the utility model, the first limiting protrusion 611 and the first limiting groove 511 are adapted, and the first limiting angle can be set according to the actual needs of the user, and the first limiting groove 511 corresponding to the limiting angle is designed on the first limiting member 5. In a specific embodiment, the first limiting angle is 90° or 115°, please refer to Figure 4 , with the position of the rotating shaft 1 at a rotation angle of 0° relative to the fixing frame 3 as the starting state, a first limiting groove 511 adapted to the first limiting protrusion 611 is provided on the side surface of the first limiting member 5 facing the second limiting member 6 at a position relative to the 0° position, and at a position of the rotation angle of 90°, and / or a first limiting groove 511 adapted to the first limiting protrusion 611 is provided at a position of the rotation angle of 115°. The number and shape of the first limiting grooves 511 can be set according to actual conditions.

[0054] Since the rotating shaft 1 can rotate relative to the fixing frame 3 in a non-restricted state, when installing the first limiting member 5 and the second limiting member 6, the rotating shaft 1 can be rotated as needed to make the second limiting member 2 rotate together, so that the first limiting protrusion 611 is aligned with the first limiting groove 511 and enters into the first limiting groove 511 to cooperate, so as to directly limit the rotation of the rotating shaft 1 relative to the fixing frame 3, so that after the installation of all components is completed, the rotating shaft 1 can be stably limited (stopped) at the first limiting angle relative to the fixing frame 3. Alternatively, the first limiting protrusion 611 is firstly brought into contact with the non-limiting groove area on the side of the second limiting member 5 where the first limiting groove 511 is located, and the various components are installed. When the limiting is required, a larger force is applied to the rotating shaft 1 or the movable part to overcome its damping friction, so that the rotating shaft 1 rotates relative to the fixed frame 3, and the second limiting member 2 is rotated together until the first limiting protrusion 611 is aligned with the first limiting groove 511 and enters the first limiting groove 511 to cooperate, so as to limit the rotation of the rotating shaft 1 relative to the fixed frame 3, and the rotating shaft 1 is stably limited (stopped) at the first limiting angle relative to the fixed frame 3. When the restriction needs to be released, the adjusting member 2 can be adjusted to be away from the step surface 11, so that there is enough space to disengage the first limiting protrusion 611 from the first limiting groove 511, release the restriction, and then reassemble according to the needs.

[0055] As a preferred solution of the present invention, please refer to Figure 1 and Figure 2 The rotating shaft structure with angle limit of the embodiment of the utility model further includes a third limiter 7; the third limiter 7 is sleeved on the rotating shaft 1 in a non-rotatable manner (non-rotatable relative to the rotating shaft 1), specifically sleeved on the third rotating shaft section 14, and sandwiched between the step surface 1 and the rotating portion 31; please refer to Figure 8 The third limiting member 7 is provided with a third limiting structure 71, see Figure 6 The rotating part 31 is provided with a fourth limiting structure 311, and the third limiting structure 71 can cooperate with the fourth limiting structure 311 to limit the rotation of the rotating shaft 1 relative to the fixing frame 3, so that the rotating shaft 1 is limited to the position of the second limiting angle relative to the fixing frame 3. In the embodiment of the utility model, the third limiting member 7 is a third limiting gasket. The third limiting member 7 adopts a gasket for corresponding structural design. In the embodiment of the utility model, please refer to Figure 8 The third limiting structure 71 includes a limiting portion 711 disposed on the outer periphery of the third limiting member 7 and protruding outward, and a side wall of the limiting portion 711 is provided with a second limiting groove 7111; please refer to Figure 6 The fourth limiting structure 311 includes a second limiting protrusion 3111 disposed on the rotating portion 31 and facing the third limiting member 7. The second limiting protrusion 3111 cooperates with the second limiting groove 7111 to limit the rotation of the third limiting member 7 relative to the rotating portion 31, so that the rotating shaft 1 is limited at a position of a second limiting angle relative to the fixing frame 3.

[0056] The embodiment of the utility model designs the third limiting structure 71 and the fourth limiting structure 311, so that the rotating shaft structure with angle limiting in the embodiment of the utility model can limit the rotation of the rotating shaft 1 relative to the fixed frame 3 through different structural combinations, so that the rotating shaft 1 can be stably limited (stopped) at the first limiting angle or the second limiting angle relative to the fixed frame 3.

[0057] In the embodiment of the utility model, the second limiting angle is different from the first limiting angle, and the second limiting angle is greater than the first limiting angle. In the new rotating shaft structure with angle limiting in the embodiment of the utility model, the second limiting angle is the limiting angle corresponding to the maximum rotation amplitude of the rotating shaft 1 relative to the fixed frame 3, so that after the rotating shaft 1 is limited to the position of the second limiting angle relative to the fixed frame 3, the movable part is limited to the maximum rotation amplitude relative to the fixed part, preventing the movable part from colliding with other equipment due to excessive rotation amplitude and causing damage. Through the cooperation and abutment of the third limiting structure 71 and the fourth limiting structure 311, the rotating shaft 1 is stably limited to the position of the second limiting angle relative to the fixed frame 3 to prevent the rotation amplitude from being too large. This design is the structural design of the "limiting structure of one angle (i.e., the maximum rotation amplitude limit)" mentioned in the background technology of the embodiment of the utility model. The rotating shaft structure in the relevant prior art has been provided with this type of structural design, which will not be repeated here. In other embodiments of the utility model, the second limiting angle can also be set to be the same as the first limiting angle. When the rotating shaft 1 is limited at the position of the first limiting angle relative to the fixing frame 3, the second limiting structure 61 cooperates with the first limiting structure 51, and the third limiting structure 71 cooperates with the fourth limiting structure 311.

[0058] In a specific embodiment, the second limiting angle is 140°, and the position where the rotating shaft 1 is at a rotation angle of 0° relative to the fixing frame 3 is taken as the starting state. A limiting portion 711 is provided on the side surface of the third limiting member 7 facing the rotating portion 31 at a position relative to 0°, and protrudes outward from the outer periphery of the third limiting member 7 at a position where the rotation angle reaches 140°, and a second limiting groove 7111 is provided on the side wall of the limiting portion 711.

[0059] In the rotating shaft structure with angle limit of the embodiment of the utility model, since the first limit angle and the second limit angle are different, when the rotating shaft 1 is limited at the position of the first limit angle relative to the fixing frame 3, the second limit structure 61 cooperates with the first limit structure 51, and the third limit structure 71 does not cooperate with the fourth limit structure 311. When the rotating shaft 1 is limited at the position of the second limit angle relative to the fixing frame 3, the third limit structure 71 cooperates with the fourth limit structure 311, and the second limit structure 61 does not cooperate with the first limit structure 51.

[0060] As a preferred solution of the present invention, please refer to Figure 1 and Figure 2 The rotating shaft structure with angle limit of the embodiment of the utility model further includes a fourth limiter 8; the fourth limiter 8 is sleeved on the rotating shaft 1 in a non-rotatable manner (non-rotatable relative to the rotating shaft 1) and is sandwiched between the rotating portion 31 and the elastic member 4; please refer to Fig. 9 The fourth limiting member 8 is provided with a fifth limiting structure 81, see Figure 7, a sixth limiting structure 312 is provided on the rotating part 31, and the fifth limiting structure 81 can cooperate with the sixth limiting structure 312 to limit the rotation of the rotating shaft 1 relative to the fixing frame 3, so that the rotating shaft 1 is limited to the position of the third limiting angle relative to the fixing frame 3. In the embodiment of the utility model, the third limiting member 7 is a third limiting gasket. The third limiting member 7 adopts a gasket for corresponding structural design. In the embodiment of the utility model, the fifth limiting structure 81 includes a third limiting protrusion 811 provided on the fourth limiting member 8 facing the rotating part 31; the sixth limiting structure 312 includes a third limiting groove 3121 provided on the rotating part facing the fourth limiting member 8. Through the cooperation of the third limiting protrusion 811 and the third limiting groove 3121, the rotation of the fourth limiting member 8 relative to the rotating part 31 is limited, so that the rotating shaft 1 is limited to the position of the third limiting angle relative to the fixing frame 32.

[0061] In the embodiment of the utility model, the third limiting angle is different from the second limiting angle, and the second limiting angle is greater than the third limiting angle. In the embodiment of the utility model, the third limiting protrusion 811 and the third limiting groove 3121 are adapted, and the third limiting angle can also be set according to the actual needs of the user. The third limiting groove 3121 corresponding to the limiting angle is designed on the side of the rotating part 31 facing the fourth limiting member 8. In a specific embodiment, the third limiting angle is 90°, please refer to Figure 7 , with the position of the rotating shaft 1 at a rotation angle of 0° relative to the fixing frame 3 as the starting state, a third limiting groove 3121 adapted to the third limiting protrusion 811 is provided on the side surface of the rotating portion 31 facing the fourth limiting member 8 at a position relative to the 0° position, and at a position where the rotation angle reaches 90°. In other embodiments of the utility model, a third limiting groove 3121 adapted to the third limiting protrusion 811 may also be provided at a position where the rotation angle reaches 115°. The number and shape of the third limiting grooves 3121 can be set according to actual conditions.

[0062] Similarly, since the rotating shaft 1 can rotate relative to the fixed frame 6 when in a non-restricted state, when the fourth limit pad is installed and contacts the rotating part 21, the rotating shaft 1 can be rotated as needed to make the four limit pads 8 rotate together, so that the third limit groove 3121 is aligned with the third limit groove 811 and enters into a mating abutment to directly limit the rotation of the rotating shaft 1 relative to the fixed frame 3, so that after the installation of all components is completed, the rotating shaft 1 is stably limited (stopped) at the third limit angle relative to the fixed frame 3. Alternatively, the third limiting protrusion 811 is firstly brought into contact with the non-limiting groove area on the side of the rotating part 31 where the third limiting groove 3121 is located, and the various components are installed. When the limiting is required, a larger force is applied to the rotating shaft 1 or the movable part to overcome its damping friction force, so that the rotating shaft 1 rotates relative to the fixed frame 3, and the fourth limiting member 8 is rotated together until the third limiting protrusion 811 is aligned with the third limiting groove 3121 and enters into the first limiting groove 511 to cooperate, so as to limit the rotation of the rotating shaft 1 relative to the fixed frame 3, and the rotating shaft 1 is stably limited (stopped) at the third limiting angle relative to the fixed frame 3. When the restriction needs to be released, the adjusting member 2 can be adjusted to make the adjusting member 2 away from the step surface 11, so that there is space to disengage the third limiting protrusion 811 from the third limiting groove 3121, release the restriction, and then reassemble according to the needs.

[0063] In the embodiment of the utility model, the first limiting angle is 90° or 115°, the third limiting angle is 90°, and the third limiting angle and the first limiting angle can be selected to be the same or different according to actual needs when matching in specific circumstances. When the third limiting angle is the same as the first limiting angle (for example, both are 90°), when the rotating shaft 1 is limited to the position of the first limiting angle relative to the fixing frame 3, the second limiting structure 61 cooperates with the first limiting structure 51, and the fifth limiting structure 81 cooperates with the sixth limiting structure 312. When the third limiting angle 31 is different from the first limiting angle 32 (for example, the first limiting angle is 115° and the second limiting angle is 90°), when the rotating shaft is limited at the first limiting angle (115°) relative to the fixed frame, the second limiting structure cooperates with the first limiting structure, and the fifth limiting structure does not cooperate with the sixth limiting structure; when the third limiting angle is different from the first limiting angle, when the rotating shaft is limited at the third limiting angle (90°) relative to the fixed frame, the fifth limiting structure cooperates with the sixth limiting structure, and the second limiting structure does not cooperate with the first limiting structure.

[0064] In the embodiment of the utility model, the rotating shaft structure with angle limit of the embodiment of the utility model also includes a flat gasket 9, which is clamped between the first limit member 5 and the adjusting member 2. The flat gasket 9 is non-rotatably (non-rotatably relative to the rotating shaft 1) sleeved on the third rotating shaft section 14 of the rotating shaft 1. The setting of the flat gasket 9 can prevent the adjusting member 2 (nut) from loosening the thread.

[0065] In the embodiment of the utility model, the second stopper 6, the third stopper 7, the fourth stopper 8 and the flat washer 9 are all provided with through holes matching the cross section of the third shaft section 14 of the shaft 1, so that they can slide axially along the third shaft section 14 of the shaft 1, sleeved on the third shaft section 14 of the shaft 1, and rotate with the shaft 1 when the shaft 1 rotates, that is, the second stopper 6, the third stopper 7, the fourth stopper 8 and the flat washer 9 are sleeved on the shaft 1 in a non-rotatable manner relative to the shaft 1. The first stopper 5 and the rotating part 31 are provided with through holes slightly larger than the third shaft section 14 of the shaft 1 in the rotation outer peripheral track, so that they can slide axially along the third shaft section 14 of the shaft 1, sleeved on the third shaft section 14 of the shaft 1, and do not rotate with the shaft when the shaft 1 rotates, that is, the first stopper 5 and the rotating part 31 are sleeved on the shaft 1 in a rotatable manner relative to the shaft 1.

[0066] The rotating shaft structure with angle limit in the embodiment of the utility model can limit the rotation of the rotating shaft 1 relative to the fixed frame 3 through different structural cooperation, so that the rotating shaft 1 is stably limited (stopped) at the first limit angle, the second limit angle or the third limit angle relative to the fixed frame 3, thereby realizing the function of multi-angle limit, reducing the amount of shaking, and increasing the service life of the product.

[0067] The embodiment of the present utility model exemplarily provides a display device, including any of the above-mentioned rotating shaft structures with angle limits, a display screen (not shown), and a bracket (not shown); the display screen is connected to the bracket via the rotating shaft structure with angle limits; wherein: the display screen is fixedly connected to the rotating shaft 1 (specifically the first rotating shaft section 12) of the rotating shaft structure with angle limits; the bracket is fixedly connected to the fixed portion 32 of the rotating shaft structure with angle limits. It should be noted in the embodiment of the present utility model that this example does not represent a limitation on the rotating shaft structure with angle limits described in the embodiment of the present utility model, and those skilled in the art can also use it in the connection structure between other movable parts and fixed parts according to actual needs.

[0068] The rotating shaft structure with angle limit in the embodiment of the utility model connects the movable part (such as a display screen) and the fixed part (such as a housing or a bracket for connecting the display screen), and limits the movable part to a specific position relative to the fixed part. The working process is as follows:

[0069] The movable part is fixedly connected to the first rotating shaft section 11 of the rotating shaft 1; the fixed part is fixedly connected to the fixed part 32 of the fixing frame 3; the third limiting member 7, the rotating part 31 of the fixing frame 3, the fourth limiting member 8, the elastic member 4, the second limiting member 6, and the first limiting member 5 are sequentially sleeved on the third rotating shaft section 14 of the rotating shaft 1, and the engaging part 52 of the first limiting member 5 is inserted into the engaging hole 322 of the fixing part 32 of the fixing frame 3, and then the flat gasket 9 and the adjusting member 2 are installed, the distance between the adjusting member 2 and the step surface 11 is adjusted, and the components are clamped to make the elastic member 4 in a compressed state.

[0070] Then, according to the required situation, the first limiting protrusion 611 and the first limiting groove 511 are used to cooperate with each other to limit the rotation of the rotating shaft 1 relative to the fixing frame 3, so that the rotating shaft 1 is limited to the position of the first limiting angle relative to the fixing frame 3; or the second limiting protrusion 3111 and the second limiting groove 7111 are used to cooperate with each other to limit the rotation of the rotating shaft 1 relative to the fixing frame 3, so that the rotating shaft 1 is limited to the position of the second limiting angle relative to the fixing frame 3; or the third limiting protrusion 811 and the third limiting groove 3121 are used to cooperate with each other to limit the rotation of the rotating shaft 1 relative to the fixing frame 3, so that the rotating shaft 1 is limited to the position of the third limiting angle relative to the fixing frame 3.

[0071] For example:

[0072] The starting state is that the rotation axis 1 is limited to 0° relative to the fixing frame 3. Fig.10 At this time, the first limiting protrusion 611 abuts against the non-limiting groove area on the side of the second limiting member 5 where the first limiting groove 511 is located (i.e., the first limiting protrusion 611 is not matched with the first limiting groove 511); the second limiting protrusion 3111 is not matched with the second limiting groove 7111; the third limiting protrusion 811 abuts against the non-limiting groove area on the side of the rotating part 31 where the third limiting groove 3121 is located (i.e., the third limiting protrusion 811 is not matched with the third limiting groove 3121).

[0073] When the rotating shaft 1 needs to be limited at a 90° position relative to the fixing frame 3, please refer to Fig.11 , the first limiting protrusion 611 can be matched with the first limiting groove 511 at the position of the rotation angle of 90°, and the third limiting protrusion 811 can be matched with the first limiting groove 511 set at the position of the rotation angle of 90°, so that at the position of the 90° limiting angle, the rotation of the rotating shaft 1 relative to the fixing frame 3 is limited, so that the rotating shaft 1 is stably limited (stopped) at the position of the 90° limiting angle relative to the fixing frame 3. )

[0074] When the rotation axis 1 needs to be limited to the position of 115° relative to the fixing frame 3, please refer to Fig.12, it can be disassembled and reassembled so that the first limiting protrusion 611 cooperates with the first limiting groove 511 at the position of the rotation angle of 115°, limiting the rotation of the shaft 1 relative to the fixed frame 3, so that the shaft 1 is stably limited (stopped) at the position of the limiting angle of 115° relative to the fixed frame 3, so that the movable part is limited at the corresponding position relative to the fixed part. At this time, the third limiting protrusion 811 does not cooperate with the first limiting groove 511, and the second limiting protrusion 3111 does not cooperate with the second limiting groove 7111.

[0075] When it is necessary to limit the rotation axis 1 to 140° (maximum rotation range) relative to the fixing frame 3, please refer to Fig.12 , disassemble and reassemble so that the second limiting protrusion 3111 does not cooperate and abut against the second limiting groove 7111, and the first limiting protrusion 611 abuts against the non-limiting groove area on the side of the second limiting member 5 on the side where the first limiting groove 511 is located (that is, the first limiting protrusion 611 does not cooperate with the first limiting groove 511); the third limiting protrusion 811 abuts against the non-limiting groove area on the side of the rotating part 31 on the side where the third limiting groove 3121 is located (that is, the third limiting protrusion 811 does not cooperate with the third limiting groove 3121), so that the movable part is limited to the corresponding position relative to the fixed part.

[0076] Compared with the prior art, the angle-limited rotating shaft structure of the embodiment of the utility model can limit the rotation of the rotating shaft relative to the fixed frame according to actual use requirements, so that the rotating shaft is limited to a first limit angle, a second limit angle, or a third limit angle relative to the fixed frame, and thus the movable part (such as a display screen) fixedly connected to the rotating shaft is stably limited (stopped) at a position of a corresponding rotation angle relative to the fixed part (such as a housing or a bracket for mounting the display screen, etc.) fixedly connected to the fixed part of the fixed frame.

[0077] The above-mentioned embodiments only express several implementation methods of the utility model embodiments, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model embodiments, and the utility model embodiments are also intended to include these modifications and modifications.

Claims

1. A rotating shaft structure with an angle limit, comprising a rotating shaft, an adjusting member, a fixing frame and an elastic member; the rotating shaft is provided with a step surface; the adjusting member is mounted on the rotating shaft and the distance from the step surface is adjustable; the fixing frame comprises a rotating part and a fixing part; the rotating part is rotatably sleeved on the rotating shaft and can slide along the axial direction of the rotating shaft; the rotating part and the elastic member are clamped between the step surface and the adjusting member; the fixing part is spaced from the rotating shaft and fixedly connected to the rotating part; characterized in that: The rotating shaft structure with angle limit also includes a first limit member and a second limit member; the first limit member and the second limit member are clamped between the elastic member and the adjusting member; wherein the first limit member is rotatably mounted on the rotating shaft and is engaged with the fixing portion; the second limit member is non-rotatably mounted on the rotating shaft; the first limit member is provided with a first limit structure, and the second limit member is provided with a second limit structure, the first limit structure can cooperate with the second limit structure to limit the rotation of the rotating shaft relative to the fixing frame, so that the rotating shaft is limited to a position at a first limit angle relative to the fixing frame.

2. The rotating shaft structure with angle limit according to claim 1, characterized in that: The first limiting member can slide along the axial direction of the rotating shaft, and a clamping portion is provided on the outer periphery of the first limiting member; the fixing portion is provided with a clamping groove or a clamping hole, and the clamping groove or the clamping hole extends on the fixing portion in a direction parallel to the axial direction.

3. The rotating shaft structure with angle limit according to claim 1, characterized in that: The first limiting member is clamped between the second limiting member and the adjusting member; the second limiting member is clamped between the elastic member and the first limiting member; the first limiting structure includes a first limiting groove provided on the first limiting member facing the second limiting member, and the second limiting structure includes a first limiting protrusion provided on the second limiting member facing the first limiting member.

4. The rotating shaft structure with angle limit according to claim 1, characterized in that: The third limiting member is also included; the third limiting member is non-rotatably sleeved on the rotating shaft and clamped between the step surface and the rotating part; the third limiting member is provided with a third limiting structure, and the rotating part is provided with a fourth limiting structure, and the third limiting structure can cooperate with the fourth limiting structure to limit the rotation of the rotating shaft relative to the fixing frame, so that the rotating shaft is limited to a position at a second limiting angle relative to the fixing frame; The second limiting angle is the same as or different from the first limiting angle; When the second limiting angle is the same as the first limiting angle, and the rotating shaft is limited at the position of the first limiting angle relative to the fixing frame, the second limiting structure cooperates with the first limiting structure, and the third limiting structure cooperates with the fourth limiting structure; When the second limiting angle is different from the first limiting angle, and the rotating shaft is limited at the first limiting angle relative to the fixed frame, the second limiting structure cooperates with the first limiting structure, and the third limiting structure does not cooperate with the fourth limiting structure; when the second limiting angle is different from the first limiting angle, and the rotating shaft is limited at the second limiting angle relative to the fixed frame, the third limiting structure cooperates with the fourth limiting structure, and the second limiting structure does not cooperate with the first limiting structure.

5. The rotating shaft structure with angle limit according to claim 4, characterized in that: The third limiting structure includes a limiting portion which is arranged on the outer periphery of the third limiting piece and protrudes outward, and the side wall of the limiting portion is provided with a second limiting groove; the fourth limiting structure includes a second limiting protrusion which is arranged on the rotating part and faces the third limiting piece.

6. The rotating shaft structure with angle limit according to claim 4, characterized in that: The invention also includes a fourth limiting member; the fourth limiting member is non-rotatably sleeved on the rotating shaft and clamped between the rotating part and the elastic member; the fourth limiting member is provided with a fifth limiting structure, and the rotating part is provided with a sixth limiting structure, and the fifth limiting structure can cooperate with the sixth limiting structure to limit the rotation of the rotating shaft relative to the fixing frame, so that the rotating shaft is limited to a position at a third limiting angle relative to the fixing frame; The third limiting angle is the same as or different from the first limiting angle; When the third limiting angle is the same as the first limiting angle, and the rotating shaft is limited at the position of the first limiting angle relative to the fixing frame, the second limiting structure cooperates with the first limiting structure, and the fifth limiting structure cooperates with the sixth limiting structure; When the third limiting angle is different from the first limiting angle, and the rotating shaft is limited at the first limiting angle relative to the fixed frame, the second limiting structure cooperates with the first limiting structure, and the fifth limiting structure does not cooperate with the sixth limiting structure; when the third limiting angle is different from the first limiting angle, and the rotating shaft is limited at the third limiting angle relative to the fixed frame, the fifth limiting structure cooperates with the sixth limiting structure, and the second limiting structure does not cooperate with the first limiting structure.

7. The rotating shaft structure with angle limit according to claim 6, characterized in that: The fifth limiting structure includes a third limiting protrusion provided on the fourth limiting member and facing the rotating part; the sixth limiting structure includes a third limiting groove provided on the rotating part and facing the fourth limiting member.

8. The rotating shaft structure with angle limit according to claim 6, characterized in that: The first limiting angle and the third limiting angle are different from the second limiting angle, and the first limiting angle and the third limiting angle are smaller than the second limiting angle; the first limiting angle and the third limiting angle are the same or different.

9. The rotating shaft structure with angle limit according to claim 1, characterized in that: The rotating shaft includes a first rotating shaft section, a second rotating shaft section, and a third rotating shaft section which are connected in sequence; a first mounting connection structure is provided on the first rotating shaft section; the connection between the second rotating shaft section and the third rotating shaft section forms the step surface; the adjusting member, the rotating part, the elastic member, the first limiting member, and the second limiting member are all arranged on the third rotating shaft section; the fixing part is provided with a second mounting connection structure.

10. A display device, comprising the rotating shaft structure with angle limit according to any one of claims 1 to 9, a display screen, and a bracket; the display screen is connected to the bracket through the rotating shaft structure with angle limit; wherein: The display screen is fixedly connected to the rotating shaft of the rotating shaft structure with an angle limit; and the bracket is fixedly connected to the fixing portion of the rotating shaft structure with an angle limit.

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