CN113464824B

CN113464824B - connecting device

Info

Publication number: CN113464824B
Application number: CN202110738117.XA
Authority: CN
Inventors: 唐荣兴; 侯晓辉; 黄海峰; 孙一峰; 聂红宣
Original assignee: Hiscene Information Technology Co Ltd
Current assignee: Hiscene Information Technology Co Ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2023-09-05
Anticipated expiration: 2041-06-30
Also published as: CN113464824A

Abstract

The application discloses a connecting device. The connecting device comprises: a connector for connection to the first device, the connector having a spherical connection; the sleeve is used for being connected with the second device and is provided with a mounting part matched with the spherical connecting part, and the spherical connecting part can be rotationally embedded in the mounting part; the damping piece is arranged on the spherical connecting part and is used for applying rotation resistance to the spherical connecting part; the handle is arranged outside the sleeve, the handle is propped against the damping piece, and the handle can rotate relative to the sleeve so that the rotation resistance applied by the damping piece to the spherical connecting part is increased or reduced.

Description

Connecting device

Technical Field

The application relates to the field of intelligent control, in particular to a connecting device.

Background

The first device and the second device may be assembled via the connector to allow a user to perform the corresponding task via interaction between the first device and the second device. However, since the requirements of different tasks on the relative position relationship between the first device and the second device are different, the current relative position relationship between the first device and the second device is difficult to adjust, and even if the relative position relationship can be adjusted, the adjustment of the position relationship is relatively single, so that the completion of the tasks of the user is affected.

Therefore, there is a need for a connecting device that overcomes the above-mentioned drawbacks.

Disclosure of Invention

In view of the above, the present application aims to provide a connecting device that can adapt to the contours of different heads and faces, thereby improving the wearing adaptability.

To achieve the above object, the present application provides a connecting device for connecting a first device and a second device, comprising: a connector for connection to the first device, the connector having a spherical connection; the sleeve is used for being connected with the second device and is provided with a mounting part matched with the spherical connecting part, and the spherical connecting part can be rotationally embedded in the mounting part; the damping piece is arranged on the spherical connecting part and is used for applying rotation resistance to the spherical connecting part; the handle is arranged outside the sleeve, the handle is propped against the damping piece, and the handle can rotate relative to the sleeve so that the rotation resistance applied by the damping piece to the spherical connecting part is increased or reduced.

Optionally, the handle is a handle ring sleeved on the sleeve, a convex ring extending radially inwards is arranged on the inner wall of the handle ring, and the convex ring is used for propping against the damping piece, so that the damping piece applies rotational resistance to the spherical connecting part.

Optionally, the damping piece is worn to locate damping ring in the sleeve, damping ring is located the bulge loop with between the installation department, be provided with on the inner wall of damping ring be used for with spherical connecting portion matched with spherical inner wall, the bulge loop be used for with damping ring is kept away from the one end of spherical inner wall offsets.

Optionally, a first thread is disposed on an outer wall of the sleeve, and a second thread matched with the first thread is disposed on an inner wall of the handle ring, and the second thread can rotate along the first thread, so that the handle can rotate relative to the sleeve.

Optionally, a fixing component extending radially outwards is arranged on the peripheral wall of the sleeve, a first protrusion is arranged on one side, close to the handle ring, of the fixing component, a second protrusion is arranged on one side, close to the fixing component, of the handle ring, and the first protrusion can prop against the second protrusion so as to limit the handle ring to rotate relative to the sleeve.

Optionally, the fixing component includes an extension portion formed by extending the outer wall of the sleeve outwards along a circumferential direction and a fixing ring sleeved on the outer wall of the sleeve, the fixing ring is located on one side of the extension portion facing the handle ring, and the first protrusion is disposed on the fixing ring.

Optionally, a plurality of mounting holes are arranged at intervals along the circumferential direction of the handle ring, and one of the mounting holes is used for mounting the second protrusion.

Optionally, the sleeve has a first channel for passing a cable, a second channel for passing the cable is provided in the connector, and the cable can be electrically connected to the first device and the second device through the first channel and the second channel.

Optionally, the mounting portion is disposed on an inner wall of the first channel, the second channel penetrates the spherical connecting portion, and the spherical connecting portion penetrates the first channel, so that the first channel and the second channel can be communicated.

Optionally, one of the spherical connecting part and the mounting part is provided with a groove, and the other is provided with a stop piece which is used for extending into the groove, and the stop piece is used for limiting the rotation of the spherical connecting part so as to limit the spherical connecting part.

Optionally, a first opening is formed in the sleeve, and the stop piece is arranged in the first opening in a penetrating manner.

Optionally, along the axial direction of the connecting piece, a central angle corresponding to the opening width of the groove is smaller than 60 degrees; along the radial direction of the connecting piece, the central angle corresponding to the opening length of the groove is smaller than 120 degrees.

Optionally, the sleeve is sleeved with a protective sleeve, the protective sleeve is provided with an inner cavity which is used for being communicated with the sleeve, the protective sleeve is further provided with an opening which is communicated with the inner cavity, and the opening is used for allowing a cable to pass through so that the cable can pass through the inner cavity.

Optionally, a seal is disposed within the opening.

Optionally, a sealing ring is sleeved on the outer wall of the protective sleeve, and the sealing ring is used for sealing a gap between the sleeve and the protective sleeve.

The application has the technical effects of providing the connecting device which is provided with the connecting piece, the sleeve, the damping piece and the handle. The connector is adapted to be connected to the first device. The sleeve is adapted to be connected to the second device. The spherical connecting part can be rotationally embedded in the mounting part, so that the spherical connecting part can drive the connecting piece to rotate in a spherical manner. As a specific application example, the connection device of the present application may be applied to an AR headset including a display device and a host. For example, the connector of the present application may be connected to the display device of the AR headset, while the sleeve is connected to the host of the AR headset.

When the spherical connecting part drives the connecting piece to rotate in a spherical shape, the connecting piece can adjust the orientation and the position of the display device according to the positions of eyes of different heads and faces, so that the display device can be opposite to the eyes of the faces with different outlines. Further, in order to ensure the stability of viewing the content displayed by the display device, the relative position between the display device and the host needs to be not easy to change. Therefore, the connecting device applies rotational resistance to the spherical connecting part through the damping piece, so that the relative position between the display device and the host machine after rotation is not easy to change. Further, since the habits of users are different, the user's demands for the amount of rotational resistance are different. In particular, some users require a large rotational resistance to enhance the stability between the display device and the host. Some users require less rotational resistance to facilitate rotation between the display device and the host. Therefore, the handle can be operated, so that the damping piece can increase or reduce the rotation resistance, and the habit of each user is further met.

Furthermore, when the display device and the host connected by the connecting device are fixed on accessories such as safety helmets, billiard caps, glasses and the like, the connecting device can adapt to different contours of the head and the face and application scenes, and further improves wearing adaptability. Thus, as a specific application embodiment, the application provides a connecting device which can adapt to different head and face contours and further improve wearing adaptability.

Drawings

The technical solution and other advantageous effects of the present application will be made apparent by the following detailed description of the specific embodiments of the present application with reference to the accompanying drawings.

Fig. 1 is a schematic installation diagram of a connection device according to an embodiment of the application.

Fig. 2 is a schematic diagram of a connection device connected to a host according to an embodiment of the application.

Fig. 3 is a schematic structural diagram of a connection device according to an embodiment of the application.

Fig. 4 is a schematic structural diagram of a connection device according to an embodiment of the application.

Fig. 5 is a front view of a connection device with a protective cover removed according to an embodiment of the present application.

Fig. 6 is a cross-sectional view taken along A-A in fig. 5.

Fig. 7 is a cross-sectional view taken along the direction B-B in fig. 5.

Fig. 8 is a schematic view illustrating a structure of a connection device with a view angle of a protection cover removed according to an embodiment of the application.

Fig. 9 is a schematic structural view of a sleeve according to an embodiment of the present application.

Fig. 10 is a schematic structural view of a handle according to an embodiment of the present application.

Reference numerals illustrate:

11. a connecting piece; 13. a display device; 15. a host; 16. a spherical connecting part; 17. a housing; 18. a sleeve; 19. a mounting part; 21. a damping member; 23. a first damping portion; 24. a second damping portion; 25. a handle; 26. a first channel; 27. a second channel; 28. a convex ring; 29. a groove; 30. a spherical inner wall; 31. a stopper; 33. a first opening; 35. a first sidewall; 37. a second sidewall; 39. a third sidewall; 41. a fourth sidewall; 43. a first thread; 45. a second thread; 47. an extension; 49. a first protrusion; 51. a second protrusion; 53. a protective sleeve; 55. an opening; 57. an inner cavity; 59. a first columnar portion; 61. a second column section; 63. a second opening; 69. a fixing ring; 71. a cable; 73. protruding ridges; 75. a fixing part; 77. a stop surface.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the application. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

In particular, as shown in fig. 1 to 9, one embodiment of the present application provides a connection device. In order to better highlight the superiority of the connection device of the present application, in this embodiment, the connection device of the present application is applied to an AR headset including a display device 13 and a host 15, and the first device and the second device are not limited herein. Thus, the first apparatus and the second apparatus in the foregoing are respectively expressed as the display apparatus of the AR headset and the host of the AR headset in the present embodiment.

The connecting device comprises: a connector 11 for connection to a display device 13 (first device), the connector 11 having a spherical connection portion 16; a sleeve 18 for connection with the host computer 15 (second device), the sleeve 18 having a mounting portion 19 fitted with the spherical connecting portion 16, the spherical connecting portion 16 being rotatably fitted in the mounting portion 19; a damper 21 provided on the spherical connecting portion 16 for applying a rotational resistance to the spherical connecting portion 16; and a handle 25 disposed outside the sleeve 18, wherein the handle 25 is abutted against the damper 21, and the handle 25 is rotatable relative to the sleeve 18 to increase or decrease the rotational resistance applied to the spherical joint portion 16 by the damper 21.

In use, the display device 13 and the host computer 15 are first fixed to accessories such as helmets, baseball caps, glasses, etc. Then, the accessories such as the safety helmet, the baseball cap, the glasses and the like are worn on the head and the face of the person. Then, the spherical connecting part 16 is rotated, so that the connecting piece 11 can drive the display device 13 to rotate until the display device 13 can be opposite to eyes of a person, and the eyes can see the content displayed by the display device 13.

The technical scheme can be seen from the above: the connecting device of the embodiment of the present application is provided with the connecting member 11, the sleeve 18, the damping member 21 and the handle 25. The connector 11 is adapted to be connected to a display device 13. The sleeve 18 is adapted to be coupled to the host computer 15. The damper 21 is used to apply a rotational resistance to the ball joint 16. The handle 25 abuts against the damper 21, and the handle 25 can be rotated relative to the sleeve 18 to increase or decrease the rotational resistance exerted by the damper 21 on the ball joint 16. The ball joint 16 is rotatable relative to the mounting portion 19. The spherical connecting part 16 can drive the connecting piece 11 to rotate in a spherical shape, so that the connecting piece 11 can adjust the orientation and the position of the display device 13 according to the positions of eyes of the head and the face of different people, and the display device 13 can be opposite to the eyes of the face with different outlines. Further, the display device 13 and the host 15 connected by the connection device can adapt to the contours of the head and the face of different people when being fixed on accessories such as a safety helmet, a billiard cap, glasses and the like, thereby improving the wearing adaptability. Further, when a user needs a large rotational resistance to enhance the stability between the display device 13 and the main body 15, the handle 25 may be operated so that the damping member 21 can increase the rotational resistance of the ball joint 16. When a user needs less rotational resistance to facilitate the rotation between the display device 13 and the main body 15, the handle 25 can be operated so that the damping member 21 can reduce the rotational resistance of the ball joint 16. Thus meeting the habit of each user.

In the present embodiment, the connector 11 has a spherical connecting portion 16. As shown in fig. 1, the connector 11 is adapted to be connected to a display device 13. Specifically, the connector 11 has opposite first and second ends. The ball joint 16 is a spherical surface disposed on the first end. The second end is provided with a fixing portion 75 for connection to the display device 13. The fixing portion 75 is, for example, a through hole as shown in fig. 2. The connector 11 can thus be screwed or bolted to the display device 13 via the through-hole. Of course, the connection member 11 and the display device 13 are not limited to the screw connection or the bolt connection by the through hole, but may be connected by other connection methods, such as welding, etc., and the present application is not limited thereto. Further, as shown in fig. 7, the connector 11 includes a spherical connecting portion 16 at a first end, a second cylindrical portion 61 at a second end, and a first cylindrical portion 59 between the spherical connecting portion 16 and the second cylindrical portion 61. The first columnar portion 59 has an outer diameter smaller than that of the second columnar portion 61. Further, the first columnar portion 59 has a circular cross section. The second cylindrical portion 61 is substantially rectangular in cross section. The fixing portion 75 is provided on the second cylindrical portion 61.

In the present embodiment, as shown in fig. 9, the sleeve 18 has a hollow structure with both ends open as a whole. As shown in fig. 2, the sleeve 18 is adapted to be coupled to the host computer 15. The host 15 includes a housing 17. The outer peripheral wall of the sleeve 18 is provided with radially outwardly extending securing members, which in some embodiments are extensions 47 formed by the circumferential outwardly extending outer wall of the sleeve 18. Further, the fixing assembly includes an extension 47 formed by extending the outer wall of the sleeve 18 outwardly in the circumferential direction and a fixing ring 69 fitted over the outer wall of the sleeve 18.

Further, the extension 47 is adapted to be connected to a side wall of the housing 17. The extension 47 is an extension ring extending outwardly along the outer peripheral wall of the sleeve 18. Further, as shown in fig. 6, 8 and 9, for example, the extension ring is a first butterfly plate. Further, the securing ring 69 is located on a side of the extension 47 remote from the housing. For example, as shown in fig. 4, the securing ring 69 is a second butterfly plate. The second butterfly plate is positioned on the right side of the first butterfly plate. Further, a third opening (not shown) is provided in the fixing ring 69. The extension 47 is provided with a fourth opening (not shown). The third opening (not shown) is directly opposite to the fourth opening (not shown). The fixing ring 69, the extension 47 can thus be screwed or bolted to the side wall of the opening via the third opening (not shown) and the fourth opening (not shown), without limitation.

In the present embodiment, the sleeve 18 has a mounting portion 19 that mates with the ball joint portion 16. The spherical connecting portion 16 is rotatably fitted in the mounting portion 19. Specifically, as shown in fig. 6 and 7, the mounting portion 19 has a spherical surface. So that the mounting portion 19 can be mated with the ball joint portion 16.

In one embodiment, the sleeve 18 has a first passage 26 for the cable 71 to pass through. Specifically, a hollow portion within the sleeve 18 forms the first passage 26. The cable 71 is used for electrically connecting the host 15 and the display device 13, so that the host 15 and the display device 13 can interact through the cable 71. Further, a second passage 27 for passing the cable 71 therethrough is provided in the connector 11. The cable 71 can be electrically connected to the host 15 and the display device 13 through the first channel 26 and the second channel 27. By thus threading the cable 71 in the first and second channels 26, 27, on the one hand the cable 71 can be protected by the first and second channels 26, 27; on the other hand, the cable 71 is prevented from occupying extra space outside the first channel 26 and the second channel 27.

Further, the mounting portion 19 is provided on the inner wall of the first passage 26. Specifically, the inner wall of the first passage 26 is provided with a spherical surface. Further, the second passage 27 penetrates the spherical connecting portion 16. Specifically, the connection member 11 has a hollow structure as a whole. The hollow portion forms a second channel 27. That is, the second passage 27 penetrates the spherical connecting portion 16, the first columnar portion 59, and the second columnar portion 61 in this order. Further, the ball joint 16 is disposed through the first passage 26 so that the first passage 26 and the second passage 27 can communicate. Specifically, the spherical connecting portion 16 mates with the spherical surface of the first passage 26, thereby enabling the second passage 27 to extend in the extending direction of the first passage 26, and the second passage 27 communicates with the first passage 26. Thus, the cable 71 can be inserted into the second channel 27 through the first channel 26 when the spherical connecting portion 16 is mounted on the spherical surface, and the cable 71 can be driven to rotate when the spherical connecting portion 16 rotates spherically relative to the mounting portion 19, so that interaction between the host computer 15 and the display device 13 is not affected.

Further, one of the spherical connecting portion 16 and the mounting portion 19 is provided with a groove 29, and the other is provided with a stopper 31 for protruding into the groove 29. The stopper 31 is used to limit the rotation of the ball joint 16 to limit the ball joint 16. So that the angle of rotation of the ball joint 16 can be limited by the groove 29 and the stopper 31. Specifically, as shown in fig. 6 and 7, for example, the groove 29 may be provided on the spherical connecting portion 16. At this time, accordingly, the stopper 31 is provided on the mounting portion 19. Or the stopper 31 is provided on the ball joint 16. At this time, correspondingly, the groove 29 is provided on the mounting portion 19. The application is not limited in this regard.

Further, the sleeve 18 is provided with a first opening 33. The stopper 31 is disposed through the first opening 33. Specifically, the sleeve 18 is provided with a first opening 33 on a side wall facing the mounting portion 19. In some embodiments, the first aperture 33 is disposed on a sidewall of the extension 47. In some embodiments, the stop 31 is a screw. The screw penetrates the inner wall of the first opening 33. Further, at this time, as shown in fig. 6 and 7, the spherical connecting portion 16 is provided with a groove 29. The screw extends into the recess 29. When the spherical connecting portion 16 rotates spherically relative to the sleeve 18, the screw abuts against the inner wall of the groove 29, so that the spherical connecting portion 16 can be limited.

Further, as shown in fig. 7, the groove 29 includes a first side wall 35 and a second side wall 37 facing each other in the axial direction of the connecting member 11. As shown in fig. 6, the recess 29 further includes third and fourth side walls 39 and 41 facing each other in the radial direction of the connection member 11. The first side wall 35, the third side wall 39, the second side wall 37 and the fourth side wall 41 are disposed in this order around the screw. I.e. the screw is located between the first side wall 35 and the second side wall 37. And the screw is located between the third side wall 39 and the fourth side wall 41. When the screw abuts against the first side wall 35 or the second side wall 37, the screw can restrict the spherical connecting portion 16 from rotating in the axial direction of the connecting member 11. When the screw abuts against the third side wall 39 or the fourth side wall 41, the screw can restrict the rotation of the spherical connecting portion 16 in the radial direction of the connecting member 11. In some embodiments, further, the first side wall 35 is connected to the third side wall 39 or the fourth side wall 41 by an arcuate wall. The second side wall 37 is connected to the third side wall 39 or the fourth side wall 41 by an arc-shaped wall. When the screw abuts against the arc-shaped wall, the screw can restrict rotation of the spherical connecting portion 16 in the direction of the arc-shaped wall. Thereby achieving multidirectional rotation of the ball joint 16.

Further, the central angle corresponding to the opening width of the groove 29 is smaller than 60 ° along the axial direction of the connecting member 11. The corresponding central angle of the opening length of the groove 29 is smaller than 120 degrees along the radial direction of the connecting piece 11.

In the present embodiment, the damper 21 is provided on the spherical connecting portion 16. The damper 21 is used to apply a rotational resistance to the ball joint 16. Specifically, as shown in fig. 5, for example, the damper 21 is a damper ring that is provided to penetrate the sleeve 18. The inner wall of the damping ring is provided with a spherical inner wall 30 for cooperation with the spherical connection 16. Further, the damping ring is sleeved outside the spherical connecting portion 16. The damping ring comprises a first damping portion 23 located inside the sleeve 18 and a second damping portion 24 located outside the sleeve 18. Further, the damping ring is located on the side of extension 47 on sleeve 18 remote from the housing. The second damping portion 24 is located on a side of the first damping portion 23 remote from the extension 47 of the sleeve 18. For example, as shown in fig. 5, the dampening ring is located to the right of the extension 47 on the sleeve 18.

Further, the damping member 21 is a deformable material. In some embodiments, in particular, the damping member 21 is made of nylon. The first damping portion 23 is located between the ball joint 16 and the sleeve 18.

In the present embodiment, the handle 25 is disposed outside the sleeve 18. Specifically, the handle 25 is a handle ring that is sleeved on the sleeve 18. As shown in fig. 3, the handle ring is sleeved on the right end of the sleeve 18. Further, the handle 25 abuts against the damper 21. The handle 25 can be rotated relative to the sleeve 18 to increase or decrease the rotational resistance exerted by the damping member 21 on the ball joint 16. Specifically, the inner wall of the handle ring is provided with a radially inwardly extending collar 28. The collar 28 is adapted to bear against the damping member 21 such that the damping member 21 applies a rotational resistance to the spherical joint portion 16. Specifically, the inner wall of the handle ring is provided with a second thread. The collar 28 is disposed on a side of the second thread remote from the sleeve 18.

Further, a damping ring is located between the collar 28 and the mounting portion 19. Specifically, as shown in fig. 7, the sleeve 18 includes a first barrel section and a second barrel section arranged in parallel in the axial direction, the first barrel section being located at the left portion of the sleeve 18, and the second barrel section being located at the right portion of the sleeve 18. The mounting portion 19 is disposed within the first barrel section. The damping ring portion is disposed within the second barrel section. Further, the inner wall of the damping ring is provided with a spherical inner wall 30 for cooperation with the spherical connection. The collar 28 is adapted to abut an end of the damping ring remote from the spherical inner wall 30. Specifically, the spherical inner wall 30 is provided in the first damping portion 23. The convex ring 28 is used to abut against an end of the second damping portion 24 away from the first damping portion 23.

Further, the outer wall of the sleeve 18 is provided with a first thread 43. For example, as shown in fig. 4, the first thread 43 is provided at an end of the securing ring 69 remote from the extension 47. So that the first thread 43 is located outside the housing when the sleeve 18 is connected to the housing by the fixing ring 69. Further, the handle ring is provided with a second thread 45 cooperating with the first thread 43. Specifically, as shown in fig. 4, 5, 8, and 9, the first screw 43 is an external screw provided on the outer wall of the sleeve 18. The second thread 45 is an internal thread provided on the inner wall of the handle ring. Further, the first thread 43 cooperates with the second thread 45 such that the second thread 45 is rotatable along the first thread 43, thereby rotating the handle 25 relative to the sleeve 18. Specifically, as shown in fig. 3, when the handle 25 is rotated along the first thread 43 to rotate the handle ring toward the extension 47, the handle ring applies a force to the damping member 21, thereby enabling the damping member 21 to move and deform relative to the sleeve 18 toward the extension 47, thereby increasing the rotational resistance of the ball joint 16. When the handle 25 is rotated along the first thread 43 to rotate the handle ring away from the extension 47, the damping member 21 is allowed to move away from the extension 47 relative to the sleeve 18 and the deformation of the damping member 21 is released. So that the damping member 21 can reduce the rotational resistance of the spherical connecting portion 16.

Further, as shown in fig. 10, the collar 28 has a stop surface 77 facing the second thread 45. The stop surface 77 is adapted to abut an end of the second damping portion 24 remote from the first damping portion 23 when the first thread 43 is engaged with the second thread 45. So that the collar 28 can exert a force on the damping member 21 through the stop surface 77.

Further, the side of the securing assembly adjacent the handle ring is provided with a first protrusion 49 and the side of the handle ring adjacent the securing assembly is provided with a second protrusion 51, the first protrusion being capable of abutting against the second protrusion to limit rotation of the handle ring relative to the sleeve 18. Specifically, in some embodiments, the fixing component is an extension portion 47 formed by extending the outer wall of the sleeve 18 outwards along the circumferential direction, the first protrusion is disposed on one side of the extension portion 47 close to the handle ring, the second protrusion 51 is disposed on one side of the handle ring close to the extension portion 47, and the first protrusion 49 can abut against the second protrusion 51 to limit the handle ring to rotate relative to the sleeve 18; still further, the fixing assembly includes an extension portion 47 formed by extending the outer wall of the sleeve 18 outwards in the circumferential direction and a fixing ring 69 sleeved on the outer wall of the sleeve, a first protrusion 49 is provided on a side of the fixing ring 69 close to the handle ring, a second protrusion 51 is provided on a side of the handle ring close to the fixing ring 69, and the first protrusion 49 can abut against the second protrusion 51 to limit rotation of the handle ring relative to the sleeve 18. Specifically, when the handle ring is rotated away from the fixing ring 69 by a certain length, for example, a fifth, a fourth, a third, a half, a round, or the like, the first protrusion 49 abuts against the second protrusion 51, so that the handle ring cannot be rotated further away from the fixing ring 69. In some embodiments, when the handle ring rotates for half a turn away from the fixed ring 69, the first protrusions 49 and the second protrusions 51 abut against each other, so that the handle ring cannot rotate away from the fixed ring 69, and thus, when the rotational resistance of the spherical connecting portion 16 is prevented from being reduced, the spherical connecting portion 16 can drive the display device 13 to rotate arbitrarily, and thus, the rotation angle of the display device 13 is difficult to control. Further, a plurality of mounting holes are provided at intervals along the circumferential direction of the handle ring. One of the plurality of mounting holes is for mounting a second boss 51 for adjusting the maximum length of rotation of the handle ring away from the fixed assembly.

Further, the handle 25 is provided with a plurality of ribs 73 in the circumferential direction. The plurality of ribs 73 can increase the friction of an operator holding the handle 25, thereby facilitating the rotation of the handle 25.

In one embodiment, the sleeve 18 is provided with a protective sleeve 53. As shown, for example, in fig. 3, the protective sleeve 53 is disposed on a side of the extension 47 of the sleeve 18 remote from the first thread 43. Further, the guard 53 is provided with an inner cavity (not shown) for communication with the sleeve 18. The protective sheath 53 is further provided with an opening 55 in communication with the interior cavity 57, the opening 55 being adapted for the passage of the cable 71 such that the cable 71 can be disposed through the interior cavity 57. Further, a seal is provided within the opening 55. The sealing material may be, for example, a sealing material such as a sealant or a sealing cover, and is not limited thereto. This seals the interior 57, thereby preventing liquids and foreign particles, such as water or dust, from entering the interior 57.

Further, a sealing ring is sleeved on the outer wall of the protective sleeve 53. The sealing ring is used for sealing the gap between the sleeve 18 and the protective sleeve 53, and can be used for waterproofing.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.

The foregoing has described in detail a connection device provided by embodiments of the present application, and specific examples have been applied to illustrate the principles and embodiments of the present application, where the foregoing examples are only for aiding in understanding of the technical solution and core idea of the present application; those of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.

Claims

1. A connection device for connecting a first device to a second device, comprising:

a connector for connection to the first device, the connector having a spherical connection;

the sleeve is used for being connected with the second device and is provided with a mounting part matched with the spherical connecting part, and the spherical connecting part can be rotationally embedded in the mounting part;

the damping piece is arranged on the spherical connecting part and is used for applying rotation resistance to the spherical connecting part;

the handle is arranged outside the sleeve, the handle is propped against the damping piece, and the handle can rotate relative to the sleeve so as to increase or decrease the rotation resistance applied by the damping piece to the spherical connecting part;

the handle is a handle ring sleeved on the sleeve, a convex ring extending radially inwards is arranged on the inner wall of the handle ring, and the convex ring is used for propping against the damping piece so that the damping piece can apply rotational resistance to the spherical connecting part;

the damping piece is a damping ring sleeved outside the spherical connecting part; the damping ring comprises a first damping part positioned in the sleeve and a second damping part positioned outside the sleeve;

the outer wall of the sleeve is provided with a first thread, the inner wall of the handle ring is provided with a second thread matched with the first thread, and the second thread can rotate along the first thread, so that the handle can rotate relative to the sleeve;

the convex ring is provided with a stop surface facing the second thread, and the stop surface is used for abutting against one end, far away from the first damping part, of the second damping part when the first thread is matched with the second thread;

the outer peripheral wall of the sleeve is provided with a fixing component which extends outwards in the radial direction, one side, close to the handle ring, of the fixing component is provided with a first protrusion, one side, close to the fixing component, of the handle ring is provided with a second protrusion, and the first protrusion can prop against the second protrusion so as to limit the handle ring to rotate relative to the sleeve.

2. The connecting device according to claim 1, wherein the damping member is a damping ring penetrating through the sleeve, the damping ring is located between the convex ring and the mounting portion, a spherical inner wall for being matched with the spherical connecting portion is disposed on an inner wall of the damping ring, and the convex ring is used for propping against one end, away from the spherical inner wall, of the damping ring.

3. The connecting device according to claim 1, wherein the fixing component comprises an extension portion formed by extending the outer wall of the sleeve outwards along the circumferential direction and a fixing ring sleeved on the outer wall of the sleeve, the fixing ring is located on one side of the extension portion facing the handle ring, and the first protrusion is arranged on the fixing ring.

4. The connection device according to claim 1, wherein a plurality of mounting holes are provided at intervals along a circumferential direction of the handle ring, one of the plurality of mounting holes being for mounting the second protrusion.

5. The connection device of claim 1, wherein the sleeve has a first passage for a cable to pass through, and a second passage for the cable to pass through is provided in the connector, and the cable can electrically connect the first device and the second device through the first passage and the second passage.

6. The connection device according to claim 5, wherein the mounting portion is disposed on an inner wall of the first channel, the second channel penetrates the spherical connection portion, and the spherical connection portion penetrates the first channel, so that the first channel and the second channel can communicate with each other.

7. A connection device as claimed in any one of claims 1 to 6, wherein one of the ball-shaped connection portion and the mounting portion is provided with a recess and the other is provided with a stop for extending into the recess, the stop being for limiting rotation of the ball-shaped connection portion to limit the ball-shaped connection portion.

8. The connection device of claim 7, wherein the sleeve is provided with a first opening, and the stopper is disposed through the first opening.

9. The connecting device according to claim 7, wherein the opening width of the groove corresponds to a central angle smaller than 60 ° along the axial direction of the connecting piece; along the radial direction of the connecting piece, the central angle corresponding to the opening length of the groove is smaller than 120 degrees.

10. A connection device as claimed in any one of claims 1 to 6 wherein the sleeve is provided with a boot, the boot being provided with an internal cavity for communication with the sleeve, the boot further being provided with an opening in communication with the internal cavity for passage of a cable so that the cable can be threaded into the internal cavity.

11. The connection device of claim 10, wherein a seal is disposed within the opening.

12. The connection device of claim 10, wherein the outer wall of the protective sleeve is sleeved with a sealing ring for sealing a gap between the sleeve and the protective sleeve.