Multi-angle hovering rotating shaft structure

Abstract

The utility model discloses a multi-angle hovering rotating shaft structure, which belongs to the technical field of electronic equipment accessories and comprises a first fixing shaft, a second fixing shaft, a first connecting piece structure, a second connecting piece structure, a torsion spring structure and a linkage cam structure. The first fixing shaft and the second fixing shaft are oppositely arranged, the first connecting piece structure is movably connected to the first fixing shaft, the second connecting piece structure is movably connected to the second fixing shaft, and the first connecting piece structure is in transmission connection with the second connecting piece structure; the torsional spring structure is arranged on the first fixing shaft and the second fixing shaft, and the first connecting piece structure and the second connecting piece structure are connected with the two ends of the torsional spring structure respectively. The first fixing shaft and the second fixing shaft are each sleeved with a linkage cam structure, and the first connecting piece structure and the second connecting piece structure are each correspondingly connected with a linkage cam structure. The rotating shaft structure solves the technical problems that an existing rotating shaft structure is complex in structure and cannot hover according to a preset angle.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic equipment accessories, in particular to a multi-angle suspended rotating shaft structure. Background Art

[0002] The electronic product hinge is a mechanical device used in electronic products to enable different components to rotate relative to each other. Common electronic product hinges include: laptop hinges, mobile phone hinges, LCD display hinges, or GPS and other vehicle bracket hinges.

[0003] The laptop computer hinge refers to a hinge structure used to connect the screen and the host part of the laptop computer, so that the screen can be rotated or fixed relative to the host part, so that the user can adjust the angle and position of the screen.

[0004] The mobile phone hinge refers to a hinge structure used for flip phones or rotating screen phones, which enables the phone screen to be rotated or fixed relative to the phone body to meet the user's needs in different usage scenarios.

[0005] The LCD display screen hinge refers to a hinge structure used for supporting and adjusting the LCD display screen, so that the display screen can be rotated or tilted relative to the base, so that the user can adjust the viewing angle and comfort.

[0006] The rotating shaft of the vehicle-mounted bracket for GPS or the like refers to a rotating shaft structure used to fix vehicle-mounted devices such as GPS, so that the vehicle-mounted devices can be rotated and adjusted relative to the bracket, so that users can adjust the angle and position of the devices.

[0007] Based on this, Chinese patent CN110769092B discloses a rotating shaft, which includes several connecting components, connecting shafts and fixed shafts; the connecting components are sheet-like structures, and a circular through hole and a runway-shaped through hole are respectively provided near the front and rear ends of the connecting components, and two semicircular notches are provided at the upper end or the lower end; there are wavy protrusions in the runway-shaped through holes; when assembling, the connecting parts are parallel to each other and staggered, and the circular through holes of the connecting components are aligned with the runway-shaped through holes of the left and right adjacent connecting components; the connecting shaft is inserted into the circular through hole of the connecting component and passes through the runway-shaped through holes of the adjacent connecting components, and the connecting shaft is fixed in the circular through hole and can slide in the runway-shaped through hole one by one; the fixed shaft is set in the semicircular notch of the connecting component and fixed on the two outermost connecting components on the left and right. This patent solves the problem that the current folding smartphones have only two display angles, and achieves the purpose of using the folding smartphone stably at multiple angles.

[0008] However, the above disclosed shaft structure still has the technical problem of complex structure. Specifically, the shaft structure disclosed in the above patent mainly increases the friction of the connecting shaft sliding in the runway-shaped through hole by setting a wavy structure in the runway-shaped through hole, and realizes the adjustment of multiple rotation angles through the engagement between the connecting shaft and the waves. However, the engagement between the connecting shaft and the waves needs to be set in multiple groups continuously, which requires more sub-components. Moreover, when it is used too many times, the torque of the shaft will be seriously attenuated, resulting in the service life of the shaft structure body being limited. In addition, there are currently some shafts for laptops, mobile phones or other electronic products that can achieve free-angle hovering, but cannot achieve fixed-angle hovering, and cannot meet the needs of use in some specific usage scenarios. Utility Model Content

[0009] Based on this, it is necessary to provide a multi-angle hovering hinge structure in order to solve the technical problems of the existing hinge structure being complex in structure and unable to hover at a preset angle.

[0010] A multi-angle suspended rotating shaft structure, comprising: a first fixed shaft, a second fixed shaft, a first connecting piece structure, a second connecting piece structure, a torsion spring structure and a linkage cam structure; the first fixed shaft and the second fixed shaft are arranged opposite to each other, the first connecting piece structure is movably connected to the first fixed shaft, the second connecting piece structure is movably connected to the second fixed shaft, and the first connecting piece structure and the second connecting piece structure are transmission-connected; the torsion spring structure is arranged on the first fixed shaft and the second fixed shaft, and the first connecting piece structure and the second connecting piece structure are respectively connected to the two ends of the torsion spring structure. A linkage cam structure is respectively sleeved on the first fixed shaft and the second fixed shaft, and the first connecting piece structure and the second connecting piece structure are respectively connected to a linkage cam structure.

[0011] Furthermore, the first connecting piece structure has a first lever structure, and the first lever structure is arranged on a side of the first connecting piece structure.

[0012] Furthermore, the second connecting piece structure has a second lever structure, and the second lever structure is arranged on a side of the second connecting piece structure.

[0013] Furthermore, the linkage cam structure has a slide groove structure; the slide groove structure is arranged on the side of the linkage cam structure; a first lever structure or a second lever structure is respectively movably connected to a slide groove structure; the slide groove structure has a first stop point and a second stop point; the first stop point and the second stop point are respectively arranged at both ends of the slide groove structure.

[0014] Furthermore, a floating double cam structure is arranged on the side of the two linked cam structures; the floating double cam structure is movably mounted on the first fixed shaft and the second fixed shaft, and the two linked cam structures are movably abutted against the side of the floating double cam structure respectively.

[0015] Furthermore, the linkage cam structure has a plurality of first tooth structures; the first tooth structures are arranged at the other end side of the linkage cam structure relative to the slide groove structure, and the plurality of first tooth structures are evenly distributed at the end of the linkage cam structure.

[0016] Furthermore, the floating double cam structure has a plurality of second tooth structures, and the plurality of second tooth structures are evenly distributed at the end of the floating double cam structure, and the second tooth structures are movably matched and connected with the first tooth structures.

[0017] Furthermore, two compression springs are arranged on the side of the floating double cam structure, and each of the compression springs is movably sleeved on the first fixed shaft or the second fixed shaft; an end sealing structure is respectively arranged at both ends of the first fixed shaft and the second fixed shaft, and two compression springs are arranged between one end sealing structure and the floating double cam structure.

[0018] Furthermore, the first connecting plate structure has a first spur gear and a first connecting block, the first lever structure is arranged on the adjacent side of the first spur gear, the first spur gear is movably sleeved on the first fixed shaft, and the first spur gear is connected to the first connecting block.

[0019] Furthermore, the second connecting plate structure has a second spur gear and a second connecting block, the second lever structure is arranged on the adjacent side of the second spur gear, the second spur gear is movably sleeved on the second fixed shaft, the second spur gear is connected to the second connecting block, and the first spur gear is meshingly connected to the second spur gear.

[0020] In summary, the utility model provides a multi-angle suspended rotating shaft structure, which is respectively provided with a first fixed shaft, a second fixed shaft, a first connecting piece structure, a second connecting piece structure, a torsion spring structure and a linkage cam structure; the first fixed shaft and the second fixed shaft are arranged opposite to each other, the first connecting piece structure is movably connected to the first fixed shaft, the second connecting piece structure is movably connected to the second fixed shaft, and the first connecting piece structure is transmission-connected to the second connecting piece structure; the torsion spring structure is arranged on the first fixed shaft and the second fixed shaft, and the first connecting piece structure and the second connecting piece structure are respectively connected to the two ends of the torsion spring structure. The first fixed shaft and the second fixed shaft are respectively sleeved with a linkage cam structure, and the first connecting piece structure and the second connecting piece structure are respectively connected with a linkage cam structure. In this technical solution, due to its simple structure and the small number of parts required, it can be made by conventional mechanical processing and powder metallurgy forming process; therefore, it can save more than 30% of cost compared with the conventional rotating shaft structure; moreover, it can also realize the function of opening a preset angle. Therefore, the utility model provides a multi-angle hovering shaft structure to solve the technical problems of the existing shaft structure that the structure is complex and cannot hover at a preset angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural schematic diagram of a multi-angle suspended shaft structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the explosion structure of the utility model in another direction of a multi-angle suspended rotating shaft structure;

[0023] Figure 3 It is a structural schematic diagram of another use state of a multi-angle hovering rotating shaft structure of the utility model;

[0024] Figure 4 It is a structural schematic diagram of another use state of a multi-angle hovering rotating shaft structure of the utility model;

[0025] Figure 5 It is a structural schematic diagram of another use state of a multi-angle hovering shaft structure of the utility model. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

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

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

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

[0032] Please also read Figure 1 to Figure 2 The utility model discloses a multi-angle suspended rotating shaft structure, which includes: a first fixed shaft 1, a second fixed shaft 2, a first connecting piece structure 3, a second connecting piece structure 4, a torsion spring structure 5 and a linkage cam structure 6; the first fixed shaft 1 and the second fixed shaft 2 are arranged opposite to each other, the first connecting piece structure 3 is movably connected to the first fixed shaft 1, the second connecting piece structure 4 is movably connected to the second fixed shaft 2, and the first connecting piece structure 3 and the second connecting piece structure 4 are transmission-connected; the torsion spring structure 5 is arranged on the first fixed shaft 1 and the second fixed shaft 2, and the first connecting piece structure 3 and the second connecting piece structure 4 are respectively connected to the two ends of the torsion spring structure 5. The first fixed shaft 1 and the second fixed shaft 2 are respectively sleeved with a linkage cam structure 6, and the first connecting piece structure 3 and the second connecting piece structure 4 are respectively connected with a linkage cam structure 6.

[0033] Specifically, the first fixed axis 1 and the second fixed axis 2 are respectively arranged in different parts that need to be opened and closed, so that when the first connecting piece structure 3 or the second connecting piece structure 4 is in motion, the first fixed axis 1 or the second fixed axis 2 can be used as the rotating axis to rotate, thereby driving the two external parts to close or move away from each other to form a preset angle. When the first connecting piece structure 3 or the second connecting piece structure 4 is in motion, they can transmit to each other to make the other party follow the action. The torsion spring structure 5 is respectively sleeved on the first fixed axis 1 and the second fixed axis 2, and one end is extended outside the first fixed axis 1 or the second fixed axis 2, and each end is connected to the first connecting piece structure 3 or the second connecting piece structure 4, so that when the first connecting piece structure 3 and the second connecting piece structure 4 are unfolded in the closed state to form a preset angle, the torsion spring structure 5 can be used as the power for unfolding. It can be seen that the utility model of a multi-angle hovering rotating axis structure can realize the function of opening to a preset angle with a simple structure.

[0034] Further, the first connecting piece structure 3 has a first lever structure 301, and the first lever structure 301 is arranged on the side of the first connecting piece structure 3. The second connecting piece structure 4 has a second lever structure 401, and the second lever structure 401 is arranged on the side of the second connecting piece structure 4. The linkage cam structure 6 has a slide groove structure 601; the slide groove structure 601 is arranged on the side of the linkage cam structure 6; one first lever structure 301 or one second lever structure 401 is respectively movably connected with one slide groove structure 601. Specifically, when the first connecting piece structure 3 and the second connecting piece structure 4 rotate relatively with their own rotation axes to approach or move away, the first lever structure 301 and the second lever structure 401 can reciprocate in one of the slide groove structures 601 to which they are movably connected. More specifically, when the first connecting plate structure 3 and the second connecting plate structure 4 move to be parallel to each other, the first lever structure 301 and the second lever structure 401 are located exactly on one end side of the slide groove structure 601; and when the first connecting plate structure 3 and the second connecting plate structure 4 move away from each other to form a preset angle, the first lever structure 301 and the second lever structure 401 move exactly to the other end side of the slide groove structure 601.

[0035] Furthermore, a floating double cam structure 7 is provided on the side of the two linkage cam structures 6; the floating double cam structure 7 is movably sleeved on the first fixed shaft 1 and the second fixed shaft 2, and the two linkage cam structures 6 are movably abutted against the side of the floating double cam structure 7. Specifically, when the first connecting piece structure 3 or the second connecting piece structure 4 is actuated, one of the linkage cam structures 6 can be driven to rotate, and the side of the linkage cam structure 6 abuts against the side of the floating double cam structure 7, and when the linkage cam structure 6 rotates, the floating double cam structure 7 always maintains the abutment state with the linkage cam structure 6.

[0036] Specifically, the linkage cam structure 6 has a plurality of first tooth structures 602; the first tooth structures 602 are arranged at the other end side of the linkage cam structure 6 relative to the slide slot structure 601, and the plurality of first tooth structures 602 are evenly distributed at the end of the linkage cam structure 6. The floating dual cam structure 7 has a plurality of second tooth structures 701, and the plurality of second tooth structures 701 are evenly distributed at the end of the floating dual cam structure 7, and the second tooth structures 701 are movably matched and connected with the first tooth structures 602. Specifically, the two linked cam structures 6 are arranged on the sides of the floating double cam structure 7, and each of the linked cam structures 6 is movably connected to the first fixed shaft 1 or the second fixed shaft 2, and one of the floating double cam structures 7 is movably connected to the first fixed shaft 1 and the second fixed shaft 2. At this time, when each part is relatively still, a plurality of the second tooth structures 701 arranged on the side of the floating double cam structure 7 are meshed and connected with a plurality of the first tooth structures 602 arranged on the side of the linked cam structure 6; and when the two linked cam structures 6 move relative to the floating double cam structure 7 respectively, the first tooth structure 602 can be offset and moved relative to the second gear structure 701 with which it is meshed, so that different tooth positions can move relative to each other.

[0037] Furthermore, two compression springs 8 are arranged on the side of the floating dual cam structure 7, and each compression spring 8 is correspondingly movably sleeved on the first fixed shaft 1 or the second fixed shaft 2. An end blocking structure 9 is arranged at each end of the first fixed shaft 1 and the second fixed shaft 2, and two compression springs 8 are arranged between one end blocking structure 9 and the floating dual cam structure 7. Specifically, when a relative misalignment occurs between the first tooth position structure 602 and the second tooth position structure 701, the floating dual cam structure 7 will be pushed to move in the direction of one end blocking structure 9, and the compression spring 8 can provide a thrust for the dual cam structure 7 to reset.

[0038] Furthermore, each of the end blocking structures 9 is provided with a fixed connection block 901, a gasket 902 and a clamping spring 903; the fixed connection block 901 is respectively connected to the first fixed shaft 1 and the second fixed shaft 2, and the gasket 902 is respectively connected to the first fixed shaft 1 and the second fixed shaft 2 on the adjacent side of the fixed connection block 901; the two clamping springs 903 are arranged on the other side of the gasket 902 relative to the fixed connection block 901. The first fixed shaft 1 and the second fixed shaft 2 are both provided with a clamping groove 101; one clamping groove 101 is respectively arranged at both ends of the first fixed shaft 1 and the second fixed shaft 2, and each of the clamping springs 903 is movably connected to one of the clamping grooves 101.

[0039] Further, the first connecting piece structure 3 has a first spur gear 302 and a first connecting block 303, the first lever structure 301 is arranged adjacent to the first spur gear 302, the first spur gear 302 is movably sleeved on the first fixed shaft 1, and the first spur gear 302 is connected to the first connecting block 303. Similarly, the second connecting piece structure 4 has a second spur gear 402 and a second connecting block 403, the second lever structure 401 is arranged adjacent to the second spur gear 402, the second spur gear 402 is movably sleeved on the second fixed shaft 2, the second spur gear 402 is connected to the second connecting block 403, and the first spur gear 302 is meshedly connected to the second spur gear 402. The first spur gear 302 or the second spur gear 402 is connected to the torsion spring structure 5.

[0040] Furthermore, a clamping block structure 10 is respectively provided on both sides of the first connecting piece structure 3 and the second connecting piece structure 4 , and the clamping structure 10 is tightly attached to the first connecting piece structure 3 and the second connecting piece structure 4 and sleeved on the first fixed shaft 1 and the second fixed shaft 2 .

[0041] Specifically, the slide groove structure 601 has a first stop point 601a and a second stop point 601b; the first stop point 601a and the second stop point 601b are respectively arranged at two ends of the slide groove structure 601. More specifically, in the initial position, the first connecting block 303 and the second connecting block 403 are parallel to each other, and at this time, the first lever structure 301 or the second lever structure 401 abuts against the first stop point 601a. ​​When the external preset trigger switch drives the torsion spring structure 5 to spring open, the torsion spring structure 5 drives the first spur gear 302 or the second spur gear 402 to drive the first connecting block 303 and the second connecting block 403 to interact and form a preset angle, and at this time, the first lever structure 301 or the second lever structure 401 abuts against the second stop point 601b. Thereafter, if the user continues to apply force to the first connecting block 303 or the second connecting block 403, the first tooth structure 602 can overcome the resistance of the compression spring 8 so as to move relative to the second tooth structure 701, thereby allowing the first lever structure 301 or the second lever structure 401 to continue to form another preset angle between the first connecting block 303 and the second connecting block 403 under the premise of abutting against the second stop point 601b. Similarly, after the first tooth structure 602 and the second tooth structure 701 continue to move relative to each other, another preset angle can continue to be formed between the first connecting block 303 and the second connecting block 403.

[0042] For further information, please refer to Figures 3 to 5 , a multi-angle hovering method, comprising the following steps:

[0043] S1: After pressing the preset trigger switch, the torsion spring structure 5 drives the first spur gear 302 and the second spur gear 402, and the first spur gear 302 and the second spur gear 402 are meshed and transmitted;

[0044] S2: The first lever structure 301 and the first connecting block 303 are linked to the first spur gear 302, and the second lever structure 401 and the second connecting block 403 are linked to the second spur gear 402, so that the first connecting block 303 and the second connecting block 403 are rotated to form an angle of 75 degrees. At this time, the first lever structure 301 or the second lever structure 401 moves from the first stop position 601a to the second stop position 601b;

[0045] S3: continue to apply force to the first connecting block 303 or the second connecting block 403, so that the first lever structure 301 or the second lever structure 401 pushes the linkage cam structure 6 from the second stop position 601b, so that the first tooth structure 602 provided in the linkage cam structure 6 overcomes the elastic force of the compression spring 8 and moves relative to the second tooth structure 701. After the action is completed, the force applied to the first connecting block 303 or the second connecting block 403 is removed. Thereafter, the compression spring 8 pushes the floating double cam structure 7 to keep the second tooth structure 701 in meshing state with the first tooth structure 602. At this time, the first connecting block 303 and the second connecting block 403 form an angle of 120 degrees.

[0046] S4: applying force to the first connecting block 303 or the second connecting block 403 again, so that the first lever structure 301 or the second lever structure 401 continues to push the linkage cam structure 6 from the second stop position 601b, so that the first gear structure 602 and the second gear structure 701 move relative to each other again, and then the first connecting block 303 and the second connecting block 403 form an angle of 165 degrees;

[0047] S5: applying a force in the opposite direction to the first connection block 303 or the second connection block 403, so that the first connection block 303 and the second connection block 403 are restored from the angle of 165 degrees to 120 degrees, 75 degrees and 0 degrees in sequence.

[0048] Specifically, a tooth position indexing of the first tooth position structure 602 provided in the linkage cam structure 6 or the second tooth position structure 701 provided in the floating double cam structure 7 can be made 22.5 degrees. Therefore, when the first connecting piece structure 3 and the second connecting piece structure 4 are mutually transmitted to move to a tooth position indexing position, the total rotation between the two is 22.5*2=45 degrees; therefore, the arc set by the first stop point 601a and the second stop point 601b between the slide groove structure 601 is preset to be 75 degrees. When the first connecting piece structure 3 and the second connecting piece structure 4 are mutually transmitted to move to a tooth position indexing position, the angle formed between the first connecting block 303 and the second connecting block 403 is 45+75=120 degrees, that is, the angle opened by the rotating shaft structure at this time is 120 degrees; thereafter, each time the first connecting piece structure 3 and the second connecting piece structure 4 are mutually transmitted to move to a tooth position indexing position, the rotating shaft structure can be opened by more than 45 degrees. If it is necessary to adjust the opening angle each time, it is only necessary to adjust one tooth division of the first tooth structure 602 or the second tooth structure 701 .

[0049] In summary, the utility model is a multi-angle suspended rotating shaft structure respectively provided with a first fixed shaft 1, a second fixed shaft 2, a first connecting piece structure 3, a second connecting piece structure 4, a torsion spring structure 5 and a linkage cam structure 6; the first fixed shaft 1 and the second fixed shaft 2 are arranged oppositely, the first connecting piece structure 3 is movably connected to the first fixed shaft 1, the second connecting piece structure 4 is movably connected to the second fixed shaft 2, and the first connecting piece structure 3 and the second connecting piece structure 4 are transmission-connected; the torsion spring structure 5 is arranged on the first fixed shaft 1 and the second fixed shaft 2, and the first connecting piece structure 3 and the second connecting piece structure 4 are respectively connected to the two ends of the torsion spring structure 5. The first fixed shaft 1 and the second fixed shaft 2 are respectively sleeved with a linkage cam structure 6, and the first connecting piece structure 3 and the second connecting piece structure 4 are respectively connected with a linkage cam structure 6. In this technical solution, due to its simple structure and the small number of parts required, it can be made by conventional mechanical processing and powder metallurgy forming process; therefore, it can save more than 30% of cost compared with the conventional rotating shaft structure; and it can also realize the function of opening a preset angle. Therefore, the utility model provides a multi-angle hovering shaft structure to solve the technical problems of the existing shaft structure that the structure is complex and cannot hover at a preset angle.

[0050] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0051] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it 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, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A multi-angle hovering shaft structure, characterized in that: It includes: A first fixed shaft (1), a second fixed shaft (2), a first connecting plate structure (3), a second connecting plate structure (4), a torsion spring structure (5) and a linkage cam structure (6); the first fixed shaft (1) and the second fixed shaft (2) are arranged opposite to each other, the first connecting plate structure (3) is movably connected to the first fixed shaft (1), the second connecting plate structure (4) is movably connected to the second fixed shaft (2), and the first connecting plate structure (3) and the second connecting plate structure (4) are transmission-connected; the torsion spring structure (5) is arranged on the first fixed shaft (1) and the second fixed shaft (2), and the first connecting plate structure (3) and the second connecting plate structure (4) are respectively connected to two ends of the torsion spring structure (5); the first fixed shaft (1) and the second fixed shaft (2) are respectively sleeved with a linkage cam structure (6), and the first connecting plate structure (3) and the second connecting plate structure (4) are respectively connected to a linkage cam structure (6).

2. The multi-angle hovering shaft structure according to claim 1, characterized in that: The first connecting piece structure (3) has a first lever structure (301), and the first lever structure (301) is arranged on a side surface of the first connecting piece structure (3).

3. The multi-angle hovering shaft structure according to claim 2, characterized in that: The second connecting piece structure (4) has a second lever structure (401), and the second lever structure (401) is arranged on a side surface of the second connecting piece structure (4).

4. The multi-angle hovering shaft structure according to claim 3, characterized in that: The linkage cam structure (6) has a slide groove structure (601); the slide groove structure (601) is arranged on the side of the linkage cam structure (6); a first lever structure (301) or a second lever structure (401) is respectively movably connected to a slide groove structure (601); the slide groove structure (601) has a first stop point (601a) and a second stop point (601b); the first stop point (601a) and the second stop point (601b) are respectively arranged at two ends of the slide groove structure (601).

5. The multi-angle hovering shaft structure according to claim 4, characterized in that: A floating double cam structure (7) is provided on the side of the two linked cam structures (6); the floating double cam structure (7) is movably sleeved on the first fixed shaft (1) and the second fixed shaft (2), and the two linked cam structures (6) are movably abutted against the side of the floating double cam structure (7).

6. The multi-angle hovering shaft structure according to claim 5, characterized in that: The linkage cam structure (6) has a plurality of first tooth structures (602); the first tooth structures (602) are arranged at the other end side of the linkage cam structure (6) relative to the slide groove structure (601), and the plurality of first tooth structures (602) are evenly distributed at the end of the linkage cam structure (6).

7. The multi-angle hovering shaft structure according to claim 6, characterized in that: The floating double cam structure (7) has a plurality of second tooth structures (701), and the plurality of second tooth structures (701) are evenly distributed at the end of the floating double cam structure (7), and the second tooth structures (701) are movably matched and connected with the first tooth structures (602).

8. The multi-angle hovering shaft structure according to claim 7, characterized in that: Two compression springs (8) are arranged on the side of the floating double cam structure (7), and each of the compression springs (8) is movably sleeved on the first fixed shaft (1) or the second fixed shaft (2); an end sealing structure (9) is arranged at each end of the first fixed shaft (1) and the second fixed shaft (2), and two compression springs (8) are arranged between one of the end sealing structures (9) and the floating double cam structure (7).

9. The multi-angle hovering shaft structure according to claim 8, characterized in that: The first connecting plate structure (3) comprises a first spur gear (302) and a first connecting block (303); the first lever structure (301) is arranged adjacent to the first spur gear (302); the first spur gear (302) is movably sleeved on the first fixed shaft (1); and the first spur gear (302) is connected to the first connecting block (303).

10. The multi-angle hovering shaft structure according to claim 9, characterized in that: The second connecting plate structure (4) comprises a second spur gear (402) and a second connecting block (403); the second lever structure (401) is arranged adjacent to the second spur gear (402); the second spur gear (402) is movably sleeved on the second fixed shaft (2); the second spur gear (402) is connected to the second connecting block (403); and the first spur gear (302) is meshingly connected to the second spur gear (402).

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