Rotating handle and mechanical equipment

Abstract

The embodiment of the utility model relates to the technical field of mechanical equipment, and particularly discloses a rotating handle and mechanical equipment, comprising a shell provided with an accommodating cavity and a first through hole, and the first through hole is communicated with the accommodating cavity; the rotating assembly is rotationally arranged in the containing cavity and comprises a rotating shaft and a rod body, the rotating shaft is rotationally arranged in the containing cavity, one end of the rod body extends into the containing cavity to be connected with the rotating shaft, and the other end of the rod body extends out of the containing cavity from the first through hole; and the first elastic assembly sleeves the rotating shaft, and the first elastic assembly is cushioned between the rod body and the inner wall of the shell, so that one side, far away from the first elastic assembly, of the rod body presses the inner wall of the accommodating cavity. By means of the mode, according to the embodiment of the utility model, the rod body can be always tightened by the shell and the first elastic assembly in the rotating process by means of the pressing acting force of the first elastic assembly on the rod body, and the situation that the rod part shakes in the rotating process due to long-term use and abrasion is avoided.

Description

Technical Field

[0001] This utility model relates to the field of rotary handle technology, and in particular to a rotary handle and mechanical device. Background Technology

[0002] As a device that allows control of equipment by rotation, the rotary handle is widely used in various devices that require manual interaction to control corresponding functions through the rotation of the handle.

[0003] In the process of realizing this utility model, the inventors discovered that: Currently, the rotating handle includes a housing, a rotating shaft, and a plastic sleeve. The plastic sleeve covers the rotating shaft and provides friction when the rotating shaft rotates. However, due to the limited structural strength of the plastic sleeve itself, after long-term use, wear and aging will lead to insufficient friction between the rotating shaft and the housing, thus failing to achieve the support and positioning of the rotating shaft, resulting in shaking and affecting the operating experience of the rotating handle. Utility Model Content

[0004] This utility model provides a rotating handle and mechanical device, which mainly solves the technical problem that the rod body shakes during rotation due to long-term wear.

[0005] To solve the above-mentioned technical problems, the present invention provides a rotating handle, comprising: a housing having a receiving cavity and a first through hole, the first through hole communicating with the receiving cavity; a rotating assembly rotatably disposed in the receiving cavity, the rotating assembly including a rotating shaft and a rod, the rotating shaft being rotatably disposed in the receiving cavity, one end of the rod extending into the receiving cavity and connected to the rotating shaft, and the other end of the rod extending out of the receiving cavity from the first through hole; and a first elastic component sleeved on the rotating shaft, the first elastic component being padded between the rod and the inner wall of the housing, such that the side of the rod away from the first elastic component presses against the inner wall of the receiving cavity.

[0006] Optionally, the rotating handle further includes a gasket assembly, which includes a first gasket and a second gasket. The first gasket is disposed between the first elastic component and the rod, and the second gasket is disposed between the side of the rod away from the first elastic component and the inner wall of the housing.

[0007] Optionally, the first gasket is made of Teflon; and / or, the second gasket is made of Teflon.

[0008] Optionally, a lubricating layer is provided between the gasket assembly and the rotating shaft.

[0009] Optionally, the first elastic component includes a plurality of butterfly-shaped springs, which are stacked sequentially.

[0010] Optionally, the rotating shaft is provided with a first channel, and one end of the rod is inserted into the first channel.

[0011] Optionally, the rotating shaft is provided with a second channel, which communicates with the first channel and is used for external cables to extend into; the rod body is provided with a third channel and a first port, which communicates with the third channel; when the rotating component is inserted into the first channel, the third channel communicates with the second channel via the first port and is used for external cables to extend out; the housing assembly is provided with a second through hole, which communicates with the receiving cavity to allow external cables to extend out.

[0012] Optionally, the rotating handle further includes a second elastic component, which includes an elastic element and a spherical element; the bottom wall of the receiving cavity is provided with an arc-shaped guide groove, one end of the rod is housed in the receiving cavity, and the bottom of the arc-shaped guide groove is provided with a limiting groove; the rod is provided with a fourth channel, the second elastic component and the spherical element are both housed in the fourth channel, one end of the elastic element abuts against the bottom wall of the fourth channel, and the other end of the elastic element abuts against the spherical element, so that a portion of the spherical element extends out of the fourth channel and abuts against the bottom of the arc-shaped guide groove; when the rod rotates, it drives the spherical element to roll along the arc-shaped guide groove, and the spherical element can pass through the limiting groove during the rolling process.

[0013] Optionally, the housing includes a main body, a first cover plate, and a second cover plate. The first through hole is disposed in the main body. The main body has a rotating cavity, a first cavity opening, and a second cavity opening. Both the first cavity opening and the second cavity opening communicate with the rotating cavity. The rotating shaft is housed in the rotating cavity, and both ends of the rotating shaft extend out of the rotating cavity. The first cover plate has a first window, which corresponds to the first cavity opening. One end of the rotating shaft is housed in the first window and abuts against the first elastic component. The second cover plate has a second window, which corresponds to the second cavity opening. The other end of the rotating shaft is housed in the second window. The rotating cavity, the first window, and the second window together constitute the aforementioned housing cavity.

[0014] To solve the above-mentioned technical problems, another technical solution adopted by this utility model is to provide a mechanical device, including the above-mentioned rotating handle.

[0015] The beneficial effects of this utility model embodiment are as follows: Unlike existing technologies, this utility model embodiment provides a rotating handle comprising a housing, a rotating assembly, and a first elastic assembly. The housing is provided with a receiving cavity and a first through hole. The rotating assembly is rotatably disposed in the receiving cavity. The rotating assembly includes a rotating shaft and a rod. The rotating shaft is rotatably disposed in the receiving cavity. One end of the rod extends into the receiving cavity and is connected to the rotating shaft. The other end of the rod extends out of the receiving cavity from the first through hole. The first elastic assembly is sleeved on the rotating shaft and is also placed between the rod and the inner wall of the housing, so that the side of the rod away from the first elastic assembly presses against the inner wall of the receiving cavity. Through the above structure, this utility model embodiment can generate a lasting resisting force by pressing against the rod through the first elastic assembly, preventing the rod from wobbling due to wear caused by prolonged operation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0017] Figure 1 This is an exploded view of a rotating handle provided in an embodiment of this utility model;

[0018] Figure 2 This is an assembly diagram of a rotating handle provided in an embodiment of the present utility model;

[0019] Figure 3 This is a schematic diagram of the main body of a rotating handle provided in an embodiment of the present utility model;

[0020] Figure 4 This is a cross-sectional schematic diagram of a rotating handle provided in an embodiment of this utility model.

[0021] Icon labels:

[0022] 1000. Turn the handle;

[0023] 1. Shell; 11. Receiving cavity; 12. First through hole; 13. Arc-shaped guide groove; 131. Limiting groove; 1a. Main body; 1a1. Rotating cavity; 1a2. First cavity opening; 1a3. Second cavity opening; 1a4. First screw hole; 1a5. Second screw hole; 1a6. Screw connection; 1b. First cover plate; 1b1. First window; 1b2. Second through hole; 1b3. First insertion part; 1c. Second cover plate; 1c1. Second window; 1c2. Third through hole; 1c3. Second insertion part; 1d. Bottom shell; 1d1. Third insertion part; 1e. Screw connector;

[0024] 2. Rotating assembly; 21. Rotating shaft; 211. First channel; 212. First connecting hole; 213. Second channel; 22. Rod body; 221. Second connecting hole; 222. Third channel; 223. First port; 224. Fourth channel; 23. Connector;

[0025] 3. First elastic component;

[0026] 4. Gasket assembly; 41. First gasket; 42. Second gasket;

[0027] 5. Second elastic component; 51. Elastic element; 52. Spherical element. Detailed Implementation

[0028] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0030] Please see Figures 1 to 4The rotating handle 1000 includes: a housing 1, a rotating assembly 2, and a first elastic assembly 3. The housing 1 is provided with a receiving cavity 11 and a first through hole 12, the first through hole 12 communicating with the receiving cavity 11. The rotating assembly 2 is rotatably disposed in the receiving cavity 11. The rotating assembly 2 includes a rotating shaft 21 and a rod 22. The rotating shaft 21 is rotatably disposed in the receiving cavity 11 and is capable of rotating around its axis. One end of the rod 22 extends into the receiving cavity 11 and connects to the rotating shaft 21, while the other end of the rod 22 extends out of the receiving cavity 11 from the first through hole 12. The first elastic assembly 3 is sleeved on the rotating shaft 21 and is placed between the rod 22 and the inner wall of the housing 1, so that the side of the rod 22 away from the first elastic assembly 3 presses against the inner wall of the receiving cavity 11. Through the above structure, the first elastic component 3 can provide a stable abutting force for the rod 22, ensuring that the rod 22 always remains in contact with the side wall of the housing 1, preventing wobbling due to wear and other problems. Furthermore, the combined frictional forces of the first elastic component 3, the rod 22, and the inner wall of the housing 1 enable the rod 22 to achieve a frictional positioning effect during rotation.

[0031] Understandably, in order to ensure that the first elastic component 3 provides a continuous abutting force to the rod 22, the first elastic component 3 should be in a compressed state when it is assembled between the rod 22 and the inner wall of the receiving cavity 11. In other words, the first elastic component 3 has a tendency to push the rod 22 and the inner wall of the receiving cavity 11 away from each other.

[0032] In some embodiments, please refer to Figure 1 The rotating handle 1000 also includes a gasket assembly 4, which includes a first gasket 41 and a second gasket 42. The first gasket 41 is disposed between the first elastic component 3 and the rod 22, and the second gasket 42 is disposed between the side of the rod 22 away from the first elastic component 3 and the inner wall of the housing 1. The addition of the gasket assembly 4 transfers the friction surface of the rod 22 during rotation to between the rod 22 and the gasket, avoiding damage to the inner wall of the housing 1. After long-term use, the gasket can be replaced to ensure the user experience of the rotating handle 1000. Furthermore, the placement of the first gasket 41 and the second gasket 42 reduces the contact area of ​​the rod 22 during rotation. Under the premise that the force applied by the first elastic component 3 to the rod 22 is limited, the smaller the contact area, the greater the frictional force on the rod 22, further improving the frictional positioning effect of the rod 22.

[0033] Furthermore, to extend the service life of the rotating handle 1000 and reduce the replacement frequency of the gasket assembly 4, the first gasket 41 and the second gasket 42 are selected from wear-resistant materials according to actual needs, including but not limited to: polymers, carbon fibers, alloys, etc. For example, in this embodiment, the first gasket 41 is made of Teflon, and / or the second gasket 42 is made of Teflon.

[0034] In some embodiments, a lubricating layer (not shown) is provided between the gasket assembly 4 and the rotating shaft 21 to reduce the friction between the gasket assembly 4 and the rotating shaft 21 and improve the user experience.

[0035] For the first elastic component 3 mentioned above, please refer to Figure 1 The first elastic component 3 includes multiple butterfly-shaped spring pieces, which are stacked sequentially to enhance the abutment force of the first elastic component 3 on the rod 22.

[0036] It should be noted that, due to its unique bowl-shaped structure, the butterfly spring can be configured in different ways to provide different resistance forces depending on the stacking arrangement of the individual butterfly springs. For example, multiple butterfly springs stacked in the same direction can withstand a large load in a small space, making it suitable for applications requiring high load-bearing capacity and low deformation requirements. Alternatively, two butterfly springs stacked in opposite directions can significantly increase the deformation of the first elastic component 3 without increasing the load, providing a larger buffer stroke and effectively absorbing impacts and vibrations. Furthermore, by combining multiple butterfly springs stacked in the same direction with two butterfly springs stacked in opposite directions, the load-bearing capacity and deformation of the first elastic component 3 can be flexibly adjusted to meet the needs of various complex working conditions.

[0037] It is understood that the connection structure between the rod 22 and the shaft 21 described above includes, but is not limited to, plug-in, screw-in, welding, adhesive, tenon and mortise joints, etc. For example, in this embodiment, the rod 22 and the shaft 21 are connected by plug-in.

[0038] Specifically, the rotating shaft 21 is provided with a first channel 211, and one end of the rod 22 is inserted into the first channel 211.

[0039] It should be noted that, in order to enhance the structural strength of the connection between the rod 22 and the shaft 21, the methods used include, but are not limited to, connecting with a connector, bolting, or interference fit. For example, in this embodiment, a connecting with a connector is used.

[0040] For details, please refer to Figure 1The rotating assembly 2 also includes a connector 23. The rotating shaft 21 is provided with a first connecting hole 212, which communicates with the first channel 211. The rod body 22 is provided with a second connecting hole 221, which corresponds to the first connecting hole 212. One end of the connector 23 passes through the first connecting hole 212 and extends into the second connecting hole 221, while the other end of the connector 23 is received within the first connecting hole 212. Furthermore, the connector 23 is interference-fitted with the first connecting hole 212 and the second connector 23.

[0041] Understandably, internal threads can be provided in the first connecting hole 212 and the second connecting hole 221, and external threads can be provided in the connecting piece 23. The detachable fit structure between the rod body 22 and the rotating shaft 21 is achieved by the engagement of the internal threads and the external threads.

[0042] In some embodiments, please refer to Figure 4 The rotating shaft 21 is provided with a second channel 213, which communicates with the first channel 211 and is used for external cables to extend into. The rod body 22 is provided with a third channel 222 and a first port 223, which communicate with the third channel 222. When the rotating assembly 2 is inserted into the first channel 211, the third channel 222 communicates with the second channel 213 via the first port 223 and is used for the external cable to extend out. The housing 1 assembly is provided with a second through hole 1b2, which communicates with the receiving cavity 11 for the external cable to extend out. Through the cooperation of the second channel 213, the first port 223, and the first channel 211, the external cable can pass through the second channel 213, the first port 223, and the first channel 211 in sequence before extending out, thereby reducing the wear of the external cable during the rotation of the rotating assembly 2 and extending the service life of the mechanical equipment using the rotating handle 1000.

[0043] Furthermore, in order to reduce wear on the cable, in some embodiments, a rubber sleeve (not shown) can be provided at the port of the first channel 211 and the second channel 213. The inner wall of the rubber sleeve is fitted onto the external cable, and the outer wall of the rubber sleeve abuts against the inner wall of the first channel 211 and / or the second channel 213, thereby limiting the cable and reducing the shaking of the external cable in the first channel 211 and the second channel 213.

[0044] In some embodiments, please refer to Figure 1The rotating handle 1000 further includes a second elastic component 5, which includes an elastic element 51 and a spherical element 52. The bottom wall of the receiving cavity 11 is provided with an arc-shaped guide groove 13. One end of the rod 22 is housed in the receiving cavity 11. The bottom of the arc-shaped guide groove 13 is provided with a limiting groove 131. The rod 22 is provided with a fourth channel 224. The second elastic component 5 and the spherical element 52 are both housed in the fourth channel 224. One end of the elastic element 51 abuts against the bottom wall of the fourth channel 224, and the other end of the elastic element 51 abuts against the spherical element 52, so that a portion of the spherical element 52 extends out of the fourth channel 224 and abuts against the bottom of the arc-shaped guide groove 13, thereby improving the smoothness of the rotation of the rod 22. When the rod 22 rotates, it drives the spherical element 52 to roll along the arc-shaped guide groove 13, and the spherical element 52 can pass through the limiting groove 131 during the rolling process. With the above structure, the rod 22 can transmit the jerking and vibration generated by the two states of the spherical part 52 during the rotation process from the bottom of the arc-shaped guide groove 13 to the containment in the limiting groove 131 to the user, so as to prompt the user.

[0045] Understandably, in order to simplify the processing steps of the rod 22, the fourth channel 224 and the third channel 222 can be connected, and one end of the elastic element 51 abuts against the connector 23.

[0046] For housing 1 mentioned above, please refer to... Figure 1 and Figure 3 The housing 1 includes a main body 1a, a first cover plate 1b, and a second cover plate 1c. A first through hole 12 is provided in the main body 1a. The main body 1a is provided with a rotating cavity 1a1, a first cavity opening 1a2, and a second cavity opening 1a3. The first cavity opening 1a2 and the second cavity opening 1a3 are both connected to the rotating cavity 1a1. A rotating shaft 21 is housed in the rotating cavity 1a1, and both ends of the rotating shaft 21 extend out of the rotating cavity 1a1. The first cover plate 1b is provided with a first window 1b1, which corresponds to the first cavity opening 1a2. One end of the rotating shaft 21 is housed in the first window 1b1 and abuts against the first elastic component 3. The second cover plate 1c is provided with a second window 1c1, which corresponds to the second cavity opening 1a3. The other end of the rotating shaft 21 is housed in the second window 1c1. The first window 1b1 and the second window 1c1 together limit the rotating shaft 21 in a direction perpendicular to the axial direction to prevent the rotating shaft 21 from shaking. The rotating cavity 1a1, the first window 1b1 and the second window 1c1 together constitute the aforementioned receiving cavity 11.

[0047] It is understood that the first cover plate 1b and the second cover plate 1c are disposed on the main body 1a in ways including but not limited to: screwing, snap-fitting, adhesive bonding, etc. For example, in this embodiment, both the first cover plate 1b and the second cover plate 1c are screwed to the main body 1a.

[0048] Specifically, the housing 1 includes multiple screw connectors 1e, the first cover plate 1b is provided with multiple second through holes 1b2, the main body 1a is provided with multiple first screw holes 1a4, the multiple second through holes 1b2 correspond to the multiple first screw holes 1a4, and the multiple first screw holes 1a4 and the first cavity 1a2 are located on the same surface of the main body 1a, and a screw connector 1e passes through the second through hole 1b2 and is screwed into the first screw hole 1a4; the second cover plate 1c is provided with multiple third through holes 1c2, the main body 1a is provided with multiple second screw holes 1a5, the multiple third through holes 1c2 correspond to the multiple second screw holes 1a5, and the multiple second screw holes 1a5 and the second cavity 1a3 are located on the same surface of the main body 1a, and a screw connector 1e passes through the third through hole 1c2 and is screwed into the second screw hole 1a5.

[0049] In some embodiments, please refer to Figure 1 The housing 1 also includes a bottom shell 1d, and an arc-shaped guide groove 13 is disposed on the bottom shell 1d. A gap is left between the bottom shell 1d and the main body 1a so as to raise the main body 1a and form a space for the spherical part 52 to move, thereby reducing the weight of the main body 1a.

[0050] It should be noted that the connection between the bottom shell 1d and the main body 1a is also by screw connection, and the main body 1a extends a screw connection 1a6 in the direction of the bottom shell 1d. The gap between the bottom shell 1d and the main body 1a is formed by the cooperation of the screw connection 1e and the screw connection 1a6.

[0051] In this embodiment, the rotating handle 1000 includes: a housing 1 and a rotating assembly 2, wherein the housing 1 is provided with a receiving cavity 11 and a first through hole 12, the first through hole 12 communicating with the receiving cavity 11; the rotating assembly 2 is rotatably disposed in the receiving cavity 11, the rotating assembly 2 includes a rotating shaft 21 and a rod 22, the rotating shaft 21 is rotatably disposed in the receiving cavity 11, one end of the rod 22 extends into the receiving cavity 11 and is connected to the rotating shaft 21, and the other end of the rod 22 extends out of the receiving cavity 11 from the first through hole 12; a first elastic component 3 is sleeved on the rotating shaft 21, and the first elastic component 3 is padded between the rod 22 and the inner wall of the housing 1, so that the side of the rod 22 away from the first elastic component 3 presses against the inner wall of the receiving cavity 11. Through the pressing action of the first elastic component 3 on the rod 22, the first elastic component 3 continuously applies a force to the rod 22, ensuring that the rod 22 is always clamped by the first elastic component 3 and the inner wall of the housing 1, thereby preventing the rod 22 from shaking. Furthermore, under the combined frictional force of the first elastic component 3 and the rod 22, and the rod 22 and the inner wall of the housing 1, the rod 22 can achieve a frictional positioning effect during rotation.

[0052] This utility model also provides an embodiment of an electronic device, which includes the aforementioned rotating handle 1000. For the specific structure and function of the rotating handle 1000, please refer to the above embodiments; further details will not be repeated here.

[0053] It should be noted that, in order to improve the ease of connection between the rotating handle 1000 and the electronic device, the first cover plate 1b is provided with a plurality of first plug-in portions 1b3, which are arranged around the first window 1b1. The second cover plate 1c is provided with a plurality of second plug-in portions 1c3, which are arranged around the second window 1c1. Both the first plug-in portions 1b3 and the second plug-in portions 1c3 are used for plugging and engaging with the electronic device. The base plate is provided with a third plug-in portion 1d1, which is located on the surface of the base plate away from the main body 1a and is distributed at the four opposite corners of the base plate, for plugging and engaging with the electronic device.

[0054] It should be noted that mechanical equipment refers to equipment that can be controlled by using the aforementioned rotary handle 1000, such as the gear lever and accelerator of a car.

[0055] It should be noted that while the preferred embodiments of this utility model are provided in the specification and accompanying drawings, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are not intended to impose additional limitations on the content of this utility model; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Furthermore, the above-described technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this utility model specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A rotary handle, characterized in that The rotation handle comprises: a shell provided with a receiving cavity and a first through hole in communication with the receiving cavity; a rotating assembly rotatably arranged in the receiving cavity, the rotating assembly comprising a rotating shaft and a rod body, one end of the rod body being connected with the rotating shaft and the other end of the rod body extending out of the receiving cavity from the first through hole; a first elastic assembly sleeved on the rotating shaft and arranged between the rod body and the inner wall of the shell to press the inner wall of the receiving cavity away from the side of the rod body away from the first elastic assembly.

2. The rotation handle according to claim 1, further comprising a gasket assembly, the gasket assembly comprising a first gasket arranged between the first elastic assembly and the rod body and a second gasket arranged between the side of the rod body away from the first elastic assembly and the inner wall of the shell.

3. The rotation handle according to claim 2, wherein the first gasket is made of Teflon; and / or the second gasket is made of Teflon.

4. The rotation handle according to claim 2, wherein a lubricating layer is arranged between the gasket assembly and the rotating shaft.

5. The rotation handle according to claim 1, wherein the first elastic assembly comprises a plurality of butterfly-shaped elastic pieces arranged in sequence.

6. The rotation handle according to claim 1, wherein the rotating shaft is provided with a first channel, and one end of the rod body is inserted into the first channel.

7. The rotation handle according to claim 6, wherein the rotating shaft is provided with a second channel in communication with the first channel, the second channel being used for extending an external cable into; the rod body is provided with a third channel and a first port in communication with the third channel; when the rotating assembly is inserted into the first channel, the third channel is in communication with the second channel through the first port, and the third channel is used for extending the external cable out; and the shell assembly is provided with a second through hole in communication with the receiving cavity to extend the external cable out.

8. The rotation handle according to claim 6, further comprising a second elastic assembly, the second elastic assembly comprising an elastic piece and a spherical piece; a bottom wall of the receiving cavity is provided with an arc-shaped guide groove, one end of the rod body is contained in the receiving cavity, and a groove bottom of the arc-shaped guide groove is provided with a limiting groove; the rod body is provided with a fourth channel, the second elastic assembly and the spherical piece are contained in the fourth channel, one end of the elastic piece abuts against a bottom wall of the fourth channel, and the other end of the elastic piece abuts against the spherical piece, so that the spherical piece abuts against the groove bottom of the arc-shaped guide groove after partially extending out of the fourth channel; when the rod body rotates, the spherical piece is rolled along the arc-shaped guide groove, and the spherical piece can pass through the limiting groove in the rolling process.

9. The rotation handle according to any one of claims 1-8. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The shell comprises a main body, a first cover plate and a second cover plate, the first through hole is arranged on the main body, the main body is provided with a rotating cavity, a first cavity opening and a second cavity opening, the first cavity opening and the second cavity opening are communicated with the rotating cavity, the rotating shaft is accommodated in the rotating cavity and two ends of the rotating shaft respectively extend out of the rotating cavity; The first cover plate is provided with a first window, the first window corresponds to the first cavity opening, one end of the rotating shaft is accommodated in the first window and abuts against the first elastic component; The second cover plate is provided with a second window, the second window corresponds to the second cavity opening, the other end of the rotating shaft is accommodated in the second window; The rotating cavity, the first window and the second window jointly constitute the above-mentioned accommodation cavity.

10. A mechanical device, characterized by The rotating handle comprises the rotating handle as claimed in any one of claims 1-9.

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