Rotating shaft connecting structure and support

Abstract

The utility model is suitable for the technical field of electronic accessories, and provides a rotating shaft connecting structure and a support. The rotating shaft connecting structure comprises a first body, a second body, a damping rotating shaft and a damping shaft sleeve, the first body is provided with a first shaft hole, and the second body is rotationally connected with the first body and provided with a second shaft hole. The damping rotating shaft comprises a first connecting section and a second connecting section, the first connecting section is arranged in the first shaft hole in a penetrating mode, the second connecting section is arranged in the second shaft hole in a penetrating mode, and the damping shaft sleeve is arranged on the first connecting section in a sleeving mode and abuts against the first connecting section. The damping rotating shaft further abuts against the hole wall of the first shaft hole, and the damping shaft sleeve is extruded between the hole wall of the first shaft hole and the damping rotating shaft to deform. The first connecting section and the hole wall of the first shaft hole can rotate relatively, and the second connecting section and the second shaft hole are fixed relatively. The elastic force of the damping shaft sleeve to recover deformation and the friction force jointly form damping force, the damping force is large, the attenuation frequency is increased, the service life of the support is prolonged, and the stability of the support after hovering is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electronic accessories, and in particular relates to a rotating shaft connection structure and a bracket. Background Art

[0002] With the popularity of electronic devices such as mobile phones and tablet computers, the application of brackets has become more and more extensive. In bracket products for electronic devices such as mobile phone brackets and tablet computer brackets, in order to facilitate carrying and meet the needs of users, the bracket has a folded state and an unfolded state. In the related art, the bracket is provided with a component that can provide damping, so that the bracket can switch between the folded state and the unfolded state, and adjust the unfolding angle and support the electronic device. However, the service life of the damping components provided in the related art is short, which affects the service life of the bracket; and the stability of the bracket after hovering is poor, and it is easy to loosen. It is difficult for the bracket to be stably maintained in the position required by the user, which is not convenient for users to use. Utility Model Content

[0003] In view of this, the utility model provides a rotating shaft connection structure and a bracket to solve the technical problem of how to extend the service life of the bracket and improve the stability of the bracket after hovering.

[0004] To solve the above problems, the technical solution provided by the embodiment of the present utility model is implemented as follows:

[0005] The utility model embodiment provides a rotating shaft connection structure, comprising: a first body, which is provided with a first axial hole; a second body, which is rotatably connected to the first body and is provided with a second axial hole coaxially arranged with the first axial hole; a damping rotating shaft, the damping rotating shaft comprising a first connecting section and a second connecting section, the first connecting section is inserted into the first axial hole, and the second connecting section is inserted into the second axial hole; a damping sleeve, which is sleeved on the first connecting section of the damping rotating shaft and abuts against the damping rotating shaft; the damping sleeve also abuts against the hole wall of the first axial hole, and the damping sleeve is squeezed and deformed between the hole wall of the first axial hole and the damping rotating shaft; wherein the first connecting section and the hole wall of the first axial hole can rotate relative to each other, and the second connecting section and the second axial hole are relatively fixed, so that the first body and the second body can rotate relative to each other.

[0006] In some embodiments, the damping sleeve is relatively fixed to the hole wall of the first axial hole, and the damping sleeve and the damping shaft can rotate relatively to each other, so that the first connecting section and the hole wall of the first axial hole can rotate relatively to each other; or, the damping sleeve and the damping shaft are relatively fixed to each other, and the damping sleeve and the hole wall of the first axial hole can rotate relatively to each other, so that the first connecting section and the hole wall of the first axial hole can rotate relatively to each other.

[0007] In some embodiments, the damping sleeve is provided with a cutout extending along the axial direction.

[0008] In some embodiments, the damping sleeve is configured as a rigid member.

[0009] In some embodiments, the first body includes a first pivot portion that forms the first axial hole, the second body includes a second pivot portion and a third pivot portion that are spaced apart and together form the second axial hole, and the first pivot portion is arranged between the second pivot portion and the third pivot portion; wherein the damping sleeve is arranged in the first pivot portion, the damping shaft passes through the second pivot portion to the third pivot portion, and is radially pressed against the damping sleeve.

[0010] In some embodiments, the damping sleeve includes: a body, on which the damping shaft is sleeved and on which the cutout is opened along the axial direction; and a protruding portion, which protrudes from the body and abuts against the first pivoting portion.

[0011] In some embodiments, the protrusion is arranged around the axis of the damping sleeve, and the protrusion is provided with a notch along the axial direction, and the notch is communicated with the incision.

[0012] In some embodiments, the two end surfaces of the protrusion are located between the two end surfaces of the body, and both the two end surfaces of the protrusion are spaced apart from the two end surfaces of the body.

[0013] In some embodiments, the body is provided with an avoidance groove, and the avoidance groove is used to at least partially space the body and the damping shaft in the radial direction.

[0014] In some embodiments, the first pivot portion is provided with a first guide surface at least at one end, and the first guide surface is located on a side of the first pivot portion forming the first axial hole; and / or the damping sleeve is provided with a through hole for the damping shaft to pass through, and the damping sleeve is provided with a second guide surface at least at one end, and the second guide surface is located on a side of the damping sleeve forming the through hole.

[0015] In some embodiments, the second connecting section includes a large diameter section and a small diameter section, the large diameter section is connected to one end of the first connecting section, and the small diameter section is connected to the other end of the first connecting section, and both the large diameter section and the small diameter section are interference fit with the second body; wherein the diameter of the small diameter section is smaller than the inner diameter of the damping sleeve.

[0016] In some embodiments, the second pivot portion is formed with a first socket, the third pivot portion is formed with a second socket, and the first socket and the second socket together form the second axial hole; wherein the diameter of the second socket is smaller than the diameter of the first socket.

[0017] An embodiment of the utility model also provides a bracket, including the above-mentioned pivot connection structure, and the bracket also includes: a first support, used to connect the electronic device, and is rotationally connected to the first body through a first damping structure; a second support, rotationally connected to the second body through a second damping structure; the pivot connection structure, the first support and the second support have a folded state and an unfolded state; wherein, in the folded state, the pivot connection structure is in contact with the first support and the second support; in the unfolded state, the second support supports the first support via the pivot connection structure.

[0018] In some embodiments, the first support is provided with a first magnetic member for adsorbing the electronic device, and / or the second support is provided with a second magnetic member for adsorbing the supporting surface.

[0019] The utility model provides a rotating shaft connection structure and a bracket, the bracket includes a damping connection structure, the damping connection structure includes a first body, a second body, a damping rotating shaft and a damping sleeve, the first body is provided with a first axial hole, the second body is rotatably connected to the first body, and is provided with a second axial hole coaxially arranged with the first axial hole, the damping rotating shaft includes a first connecting section and a second connecting section connected to each other, the first connecting section is inserted into the first axial hole, the second connecting section is inserted into the second axial hole, the damping sleeve is coaxially sleeved on the first connecting section of the damping rotating shaft, and abuts against the damping rotating shaft. The damping rotating shaft also abuts against the hole wall of the first axial hole, and the damping sleeve is squeezed and deformed between the hole wall of the first axial hole and the damping rotating shaft. The first connecting section and the hole wall of the first axial hole can rotate relative to each other, and the second connecting section and the second axial hole are relatively fixed, so that the first body and the second body can rotate relative to each other. The damping sleeve generates elastic force to restore the deformation due to extrusion deformation, and the friction force and the elastic force together form the damping force. The damping force is large, the damping attenuation times increase, and the shaft connection structure can be reused by replacing the damping sleeve and / or the damping shaft, which prolongs the service life of the shaft connection structure, thereby prolonging the service life of the bracket. In addition, due to the large damping force, after the first body and / or the second body rotates, it can hover more stably at the position required by the user, the stability of the bracket after hovering is high, and the user experience is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A structural schematic diagram of a rotating shaft connection structure provided by an embodiment of the utility model;

[0021] Figure 2 An exploded view of the shaft connection structure provided by an embodiment of the utility model;

[0022] Figure 3 A top view of the rotating shaft connection structure provided by an embodiment of the utility model;

[0023] Figure 4 for Figure 3 Sectional view in the AA direction;

[0024] Figure 5 A schematic diagram of the structure of the damping sleeve provided in an embodiment of the utility model;

[0025] Figure 6 for Figure 4 An enlarged schematic diagram of point B in FIG.

[0026] Figure 7 A schematic diagram of the structure of the bracket provided by the embodiment of the utility model in the unfolded state;

[0027] Figure 8 This is a schematic diagram of the structure of the bracket provided by an embodiment of the utility model in a folded state.

[0028] Description of reference numerals:

[0029] 1. Shaft connection structure; 11. First body; 111. First shaft hole; 112. First pivoting part; 1121. First guide surface; 12. Second body; 121. Second shaft hole; 1211. First plug hole; 1212. Second plug hole; 122. Second pivoting part; 123. Third pivoting part; 13. Damping shaft; 131. First connecting section; 132. Second connecting section; 1321. Large diameter section; 1322. Small diameter section; 14. Damping sleeve; 141. Notch; 142. Body; 1421. Avoidance groove; 143. Protrusion; 1431. Notch; 144. Through hole; 145. Second guide surface; 2. First support; 21. First damping structure; 3. Second support; 31. Second damping structure. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0031] The various specific technical features described in the specific embodiments can be combined in any suitable manner without contradiction, for example, different embodiments and technical solutions can be formed by combining different specific technical features. In order to avoid unnecessary repetition, the various possible combinations of the specific technical features in the utility model will not be described separately.

[0032] In the following description, the terms "first, second, etc." are only used to distinguish different objects, and do not mean that the objects have the same or related points. It should be understood that the directions "above", "below", "outside" and "inside" are all directions in normal use, and the directions "left" and "right" refer to the left and right directions shown in the corresponding schematic diagrams, which may or may not be the left and right directions in normal use.

[0033] It should be noted that the terms "comprises", "includes" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element. "Multiple" means greater than or equal to two.

[0034] In a first aspect, an embodiment of the utility model provides a shaft connection structure 1, such as Figure 1-Figure 4 As shown, the rotating shaft connection structure 1 includes a first body 11, a second body 12, a damping rotating shaft 13 and a damping sleeve 14. The first body 11 is provided with a first shaft hole 111. The second body 12 is rotatably connected to the first body 11 and is provided with a second shaft hole 121. The second shaft hole 121 is coaxially arranged with the first shaft hole 111. The damping rotating shaft 13 includes a first connecting section 131 and a second connecting section 132 connected to each other. The first connecting section 131 is inserted into the first shaft hole 111, and the second connecting section 132 is inserted into the second shaft hole 121. (Refer to Figure 4 ), and the damping sleeve 14 is coaxially sleeved on the first connecting section 131 of the damping shaft 13, the damping sleeve 14 abuts against the damping shaft 13, that is, friction is generated between the inner side of the damping sleeve 14 and the damping shaft 13, which can be simply regarded as an interference fit between the damping sleeve 14 and the damping shaft 13. The damping sleeve 14 also abuts against the hole wall forming the first shaft hole 111, that is, friction is generated between the outer side of the damping sleeve 14 and the hole wall forming the first shaft hole 111, which can be simply regarded as an interference fit between the damping sleeve 14 and the first shaft hole 111. The first connecting section 131 and the hole wall forming the first shaft hole 111 can rotate relative to each other, and the second connecting section 132 and the second shaft hole 121 are relatively fixed, so that the first body 11 and the second body 12 can rotate relative to each other. That is, the friction force between the second connecting section 132 and the second axial hole 121 is large enough to fix the damping shaft 13 in the second axial hole 121, that is, no relative movement occurs between the damping shaft 13 and the second body 12; similarly, relative movement occurs between the first connecting section 131 and the first body 11.

[0035] like Figure 1 and Figure 2 As shown, the damping sleeve 14 may be fixed in the first shaft hole 111, so that the damping shaft 13 is rotatably connected to the damping sleeve 14, that is, there may be no relative motion between the damping sleeve 14 and the first shaft hole 111, and there may be relative motion between the damping sleeve 14 and the damping shaft 13. In this embodiment, the damping force is formed between the inner side of the damping sleeve 14 and the damping shaft 13. Of course, the damping sleeve 14 may be fixedly connected to the damping shaft 13, and the damping sleeve 14 is rotatably connected to the first shaft hole 111, that is, there may be no relative motion between the damping shaft 13 and the damping sleeve 14, and there may be relative motion between the damping sleeve 14 and the first shaft hole 111. In this embodiment, the damping force is formed between the outer side of the damping sleeve 14 and the first shaft hole 111. It should be noted that no matter which of the two aforementioned embodiments is used by the damping shaft 13 to generate relative rotation, that is, no matter whether the damping force is formed on the inner side of the damping sleeve 14 or on the outer side of the damping sleeve 14, the damping force can cause the first body 11 and / or the second body 12 to rotate, and cause the first body 11 and / or the second body 12 to hover at the position required by the user after rotation.

[0036] like Figure 2 and Figure 4 As shown, the damping sleeve 14 is squeezed and deformed between the hole wall forming the first shaft hole 111 and the damping shaft 13, that is, the damping sleeve 14 has an elastic force to restore the deformation, and the elastic force makes the inner side of the damping sleeve 14 press against the damping shaft 13, and the outer side of the damping sleeve 14 press against the first shaft hole 111. When the damping sleeve 14 and the damping shaft 13 are fixedly connected without relative rotation, the friction force generated by the interference fit between the outer side of the damping sleeve 14 and the first shaft hole 111, and the elastic force of the damping sleeve 14 expanding outward and pressing against the hole wall of the first shaft hole 111 form the damping force; when the damping sleeve 14 and the damping shaft 13 rotate relative to each other, the friction force generated by the interference fit between the inner side of the damping sleeve 14 and the damping shaft 13, and the elastic force of the damping sleeve 14 contracting inward and pressing against the first connecting section 131 form the damping force.

[0037] In order to facilitate understanding of the implementation principle of the first body 11 and / or the second body 12 being suspended after rotation, the damping force is formed between the inner side of the damping sleeve 14 and the damping shaft 13 as an example for explanation. Figure 1 and Figure 2As shown, when the first body 11 and the second body 12 rotate relative to each other, the damping sleeve 14 and the damping shaft 13 rotate relative to each other. When the first body 11 and the second body 12 rotate relative to each other, the first body 11 and / or the second body 12 rotate to overcome the damping force between the damping shaft 13 and the damping sleeve 14, but the damping force continues to hinder the first body 11 and / or the second body 12 from rotating to consume the kinetic energy of rotating the first body 11 and / or the second body 12 until the damping resistance is balanced with the rotational kinetic energy, and the first body 11 and / or the second body 12 rotate to the position required by the user and hover. The elastic force and the friction force form a damping force, and the damping force is large, which facilitates the first body 11 and / or the second body 12 to stably hover at the position required by the user. And because the damping force is large, the damping attenuation times increase accordingly, and after the damping attenuation, the shaft connection structure 1 can be used again by replacing the damping sleeve 14 and / or the damping shaft 13, thereby extending the service life of the bracket. In addition, since the elastic force has a certain flexibility, the resistance generated during the rotation process is small, and the influence on the opening and closing of the rotating shaft connection structure 1 is small, which facilitates the rotation of the bracket.

[0038] It is understandable that if Figure 1 As shown, one of the first body 11 and the second body 12 can be directly or indirectly connected to the electronic device, and the other of the first body 11 and the second body 12 can be directly or indirectly connected to the support surface. For example, the first body 11 can directly contact and fix the electronic device, and the second body 12 can directly contact the support surface and support the electronic device; or the first body 11 can be indirectly connected to the electronic device through a component with a support area (such as the first support 2), and the second body 12 can be indirectly connected to the support surface through a component with a support area (such as the second support 3). That is to say, the electronic device can be directly fixed on the shaft connection structure 1, or it can be connected to the shaft connection structure 1 through other components. Specifically, the types of electronic devices include but are not limited to mobile phones and tablet computers, and the support surface can be the surface of an object with ferromagnetic metal or alloy materials such as a refrigerator, an induction cooker, and a magnetic part attached to a wall, or it can be the surface of an object without ferromagnetic metal or alloy materials such as a desktop or a cabinet. It should be noted that the application scenario type of the embodiment of the utility model does not limit the structure of the shaft connection structure 1 and the bracket provided in the embodiment of the utility model.

[0039] The embodiment of the utility model provides a shaft connection structure 1, comprising a first body 11, a second body 12, a damping shaft 13 and a damping sleeve 14, wherein the first body 11 is provided with a first shaft hole 111, the second body 12 is rotatably connected to the first body 11, and is provided with a second shaft hole 121 coaxially arranged with the first shaft hole 111, the damping shaft 13 comprises a first connecting section 131 and a second connecting section 132 connected to each other, the first connecting section 131 is inserted into the first shaft hole 111, the second connecting section 132 is inserted into the second shaft hole 121, the damping sleeve 14 is sleeved on the first connecting section 131 of the damping shaft 13, and abuts against the damping shaft 13. The damping shaft 13 is also abutted against the hole wall of the first shaft hole 111, and the damping sleeve 14 is squeezed and deformed between the hole wall of the first shaft hole 111 and the damping shaft 13. The first connecting section 131 and the hole wall of the first shaft hole 111 can rotate relative to each other, and the second connecting section 132 and the second shaft hole 121 are relatively fixed, so that the first body 11 and the second body 12 can rotate relative to each other. The elastic force for restoring the deformation of the damping sleeve 14 due to the extrusion deformation can be the relative rotation between the outer side of the damping sleeve 14 and the first shaft hole 111 or the second shaft hole 121, the friction force generated by the interference fit between the outer side of the damping sleeve 14 and the first shaft hole 111, and the elastic force of the damping sleeve 14 expanding outwards and pressing against the hole wall of the first shaft hole 111 to form the damping force; or the relative rotation between the damping sleeve 14 and the first connecting section 131 of the damping shaft 13, the friction force generated by the interference fit between the inner side of the damping sleeve 14 and the first connecting section 131 of the damping shaft 13, and the elastic force of the damping sleeve 14 contracting inwards and pressing against the first connecting section 131 to form the damping force. The friction force and the elastic force together form a damping force. As the damping force increases, the damping attenuation times increase, and the shaft connection structure 1 can be reused by replacing the damping sleeve 14 and / or the damping shaft 13, thereby extending the service life of the shaft connection structure 1 and thus extending the service life of the bracket. In addition, due to the large damping force, the first body 11 and / or the second body 12 can be relatively stably suspended at the position required by the user after rotation, thereby improving the stability of the bracket after suspension and facilitating user use.

[0040] In some embodiments, Figure 2 and Figure 4As shown, the damping shaft 13 is relatively fixed to the hole wall of the first shaft hole 111, and the damping sleeve 14 and the damping shaft 13 can rotate relatively, so that the first connecting section 131 and the hole wall forming the first shaft hole 111 can rotate relatively. In other words, the damping sleeve 14 is rotatably connected to the damping shaft 13, and the outer side of the damping sleeve 14 and the hole wall of the first shaft hole 111 do not rotate relative to each other, and the inner side of the damping sleeve 14 and the first connecting section 131 of the damping shaft 13 produce relative motion, and the friction force generated by the interference fit between the inner side of the damping sleeve 14 and the first connecting section 131 of the damping shaft 13, and the elastic force of the damping sleeve 14 shrinking and deforming inwards together form the damping force. Damping attenuation and wear are both formed between the damping sleeve 14 and the damping shaft 13, which has little impact on the service life of the first body 11 and the second body 12. After replacing the damping shaft 13 and / or the damping sleeve 14, the shaft connection structure 1 can be used again, which is convenient for extending the service life of the bracket.

[0041] In some embodiments, Figure 2 and Figure 4 As shown, the damping sleeve 14 is relatively fixed to the damping shaft 13, and the damping sleeve 14 and the hole wall of the first shaft hole 111 can rotate relatively, so that the first connecting section 131 and the hole wall of the first shaft hole 111 can rotate relatively. In other words, the damping sleeve 14 is rotatably connected to the hole wall forming the first shaft hole 111, and the outer side of the damping sleeve 14 and the hole wall of the first shaft hole 111 generate relative rotation, and the inner side of the damping sleeve 14 and the first connecting section 131 of the damping shaft 13 do not generate relative movement. The friction force generated by the interference fit between the outer side of the damping sleeve 14 and the hole wall of the first shaft hole 111, and the elastic force of the damping sleeve 14 expanding and deforming outwards together form the damping force. The damping sleeve 14 and the damping shaft 13 are relatively fixed, and the damping sleeve 14 and the damping shaft 13 can be disassembled or assembled at the same time in one disassembly and assembly operation, which is convenient for replacing and assembling the damping sleeve 14 and the damping shaft 13.

[0042] In some embodiments, Figure 4 and Figure 5As shown, the damping sleeve 14 is provided with a cutout 141 extending in the axial direction. The space where the cutout 141 is located forms a deformation space of the damping sleeve 14. The damping sleeve 14 can produce expansion deformation. At this time, the cutout 141 is enlarged, and the outer side of the damping sleeve 14 is pressed against the first shaft hole 111 or the second shaft hole 121, and an elastic force is generated between the outer side of the damping sleeve 14 and the first shaft hole 111 or the second shaft hole 121; the damping sleeve 14 can also produce contraction deformation. At this time, the cutout 141 is reduced, and the inner side of the damping sleeve 14 is pressed against the damping shaft 13, and an elastic force is generated between the inner side of the damping sleeve 14 and the damping shaft 13. However, no matter whether the cutout 141 is expanded or reduced, the damping sleeve 14 has an elastic force to restore the deformation, and the elastic force can increase the damping force, which is convenient for extending the service life of the bracket, and also convenient for the bracket to be more stably suspended at the position required by the user after rotation.

[0043] For ease of understanding, the following explanation is given by taking the damping force formed between the inner side of the damping sleeve 14 and the damping shaft 13 as an example, that is, the damping sleeve 14 has an elastic force that contracts inwardly, and the elastic force and the friction force formed between the inner side of the damping sleeve 14 and the damping shaft 13 together form the damping force.

[0044] In some embodiments, Figure 4 and Figure 5 As shown, the damping sleeve 14 is set as a rigid part. Rigidity refers to the resistance of an object to deformation when subjected to a force. It can be understood that a rigid part is not easy to bend or twist. For example, the damping sleeve 14 can be a stainless steel part, a galvanized plate, an electrolytic plate, or a zinc alloy. The damping sleeve 14 has a large structural strength and is less likely to be worn due to friction. It is easy to maintain friction to increase the number of damping attenuation. The service life of the damping sleeve 14 is long, which is conducive to extending the service life of the shaft connection structure 1.

[0045] In some embodiments, Figure 2 and Figure 4 As shown, the first body 11 includes a first pivoting portion 112 forming a first shaft hole 111, and the second body 12 includes a second pivoting portion 122 and a third pivoting portion 123 that are spaced apart and together form a second shaft hole 121, and the first pivoting portion 112 is disposed between the second pivoting portion 122 and the third pivoting portion 123 (refer to Figure 1). That is, the first pivot part 112 is located in the middle of the rotating shaft connection structure 1. The damping sleeve 14 is arranged in the first pivot part 112, and the damping shaft 13 is passed from the second pivot part 122 to the third pivot part 123, and is radially pressed against the damping sleeve 14, so that the outer side of the damping shaft 13 is interference fit with the first pivot part 112, and the inner side of the damping sleeve 14 is interference fit with the damping shaft 13. The damping sleeve 14 is installed in the middle of the rotating shaft connection structure 1, which reduces the possibility of uneven distribution of damping force and affecting the hovering effect. In addition, in the axial direction, when the damping sleeve 14 is separated from the first pivot part 112, it is necessary to pass through the length of the second pivot part 122 or the length of the third pivot part 123. The damping sleeve 14 is difficult to separate from the first pivot part 112, which facilitates the damping sleeve 14 to be stably installed in the first pivot part 112.

[0046] In some embodiments, Figure 2 , Figure 5 and Figure 6 As shown, the damping sleeve 14 includes a body 142 and a protrusion 143. The body 142 is sleeved with the damping shaft 13 and is provided with the above-mentioned cutout 141 along the axial direction. The protrusion 143 protrudes from the body 142 and presses against the first pivoting portion 112. In the process of installing the damping sleeve 14 on the first pivoting portion 112, the protrusion 143 presses against the first pivoting portion 112, the damping sleeve 14 contracts inwardly, the cutout 141 is reduced, and the damping sleeve 14 generates an elastic force to expand outwardly. After the damping shaft 13 is installed, the damping shaft 13 supports the damping sleeve 14 so that the outer side of the damping sleeve 14 is pressed against the first pivot part 112, and the inner side of the damping sleeve 14 is pressed against the damping shaft 13, that is, the damping sleeve 14 and the first pivot part 112 and the damping shaft 13 are all interference fit, and friction is generated between the damping sleeve 14 and the damping shaft 13. After the damping shaft 13 is inserted, the damping sleeve 14 is supported outwardly, and the damping sleeve 14 is pressed inwardly against the damping shaft 13 by the first pivot part 112, thereby increasing the damping force between the damping sleeve 14 and the damping shaft 13.

[0047] In some embodiments, Figure 2 , Figure 5 and Figure 6 As shown, the protrusion 143 is arranged around the axis of the damping sleeve 14, and the protrusion 143 is provided with a notch 1431 along the axial direction, and the notch 1431 is arranged in communication with the cutout 141. That is, in the circumferential direction, the protrusion 143 takes the upper side of the cutout 141 as a starting point and extends to the lower side of the cutout 141 in a direction away from the cutout 141. The protrusion 143 has a larger circumferential arrangement area, and the protrusion 143 and the first pivoting portion 112 are in contact with a larger area, so as to increase the friction between the protrusion 143 and the first pivoting portion 112, so that the protrusion 143 is pressed against the first pivoting portion 112, so that the damping sleeve 14 rotates synchronously with the first body 11 and rotates relative to the second body 12.

[0048] In some embodiments, Figure 2 , Figure 5 and Figure 6 As shown, the two end surfaces of the protrusion 143 are located between the two end surfaces of the body 142, and the two end surfaces of the protrusion 143 are spaced from the two end surfaces of the body 142, that is, the protrusion 143 is located in the middle of the body 142. It can be understood that due to the overhang at the edge of the first shaft hole 111, it is difficult for the protrusion 143 to fit with the edge of the first pivoting portion 112, and there is a possibility that the two ends of the first shaft hole 111 are unevenly stressed. The middle position of the first shaft hole 111 is relatively flat, which facilitates the protrusion 143 to fit with the first pivoting portion 112, so that the damping sleeve 14 is pressed against the first pivoting portion 112, reducing the possibility of loosening due to relative movement between the damping sleeve 14 and the first pivoting portion 112.

[0049] In some embodiments, Figure 6 As shown, the body 142 is provided with an avoidance groove 1421, and the avoidance groove 1421 is used to make the body 142 and the damping shaft 13 at least partially spaced apart in the radial direction. In the radial direction, the portion of the body 142 provided with the avoidance groove 1421 is spaced apart from the damping shaft 13, which reduces the contact area between the body 142 and the damping shaft 13, facilitates the installation of the damping sleeve 14 in the damping sleeve 14, and also facilitates the relative rotation between the damping sleeve 14 and the damping shaft 13, so as to reduce the force torque applied by the user to drive the first body 11 or the second body 12 to rotate, and facilitates the user to open and close the shaft connection structure 1.

[0050] In some embodiments, Figure 6 As shown, the first pivoting portion 112 is provided with a first guide surface 1121 at least at one end, and the first guide surface 1121 is located at one side of the first pivoting portion 112 where the first shaft hole 111 is formed. That is, the first pivoting portion 112 may be provided with the first guide surface 1121 at one end in the axial direction, or may be provided with the first guide surface 1121 at both ends in the axial direction, and the first guide surface 1121 is located at the inner side of the first pivoting portion 112 to provide guidance, so as to facilitate the insertion of the damping sleeve 14 into the first shaft hole 111.

[0051] In some embodiments, Figure 5 and Figure 6As shown, the damping sleeve 14 is provided with a through hole 144 for the damping shaft 13 to pass through, and the damping sleeve 14 is provided with a second guide surface 145 at least at one end, and the second guide surface 145 is located on one side of the damping sleeve 14 where the through hole 144 is formed. That is, the damping sleeve 14 can be provided with a second guide surface 145 at one end in the axial direction, or at both ends in the axial direction, and the second guide surface 145 is located on the inner side of the second pivot portion 122 to provide guidance, so as to facilitate the insertion of the damping shaft 13 into the through hole 144 of the damping sleeve 14. Of course, in some possible implementation schemes, the first guide surface 1121 and the second guide surface 145 can exist at the same time, so as to facilitate the insertion of the damping sleeve 14 into the first axial hole 111 and the insertion of the damping shaft 13 into the damping sleeve 14.

[0052] In some embodiments, Figure 2 and Figure 4 As shown, the second connecting section 132 includes a large diameter section 1321 and a small diameter section 1322, the large diameter section 1321 is connected to one end of the first connecting section 131, and the small diameter section 1322 is connected to the other end of the first connecting section 131, the large diameter section 1321 and the small diameter section 1322 are both interference fit with the second body 12, and the diameter of the small diameter section 1322 is smaller than the inner diameter of the damping sleeve 14. Specifically, the large diameter section 1321 is interference fit with the second pivoting portion 122, and the small diameter section 1322 is interference fit with the third pivoting portion 123. The diameter of the small diameter section 1322 is smaller than the inner diameter of the damping sleeve 14, so that the small diameter section 1322 can pass through the damping sleeve 14, thereby facilitating the damping shaft 13 to be inserted into the through hole 144 of the damping sleeve 14.

[0053] In some embodiments, Figure 2 and Figure 4As shown, the second pivoting part 122 is formed with a first insertion hole 1211, and the third pivoting part 123 is formed with a second insertion hole 1212. The first insertion hole 1211 and the second insertion hole 1212 together form the second shaft hole 121, and the diameter of the second insertion hole 1212 is smaller than the diameter of the first insertion hole 1211. The second insertion hole 1212 with a smaller diameter is located in front of the damping shaft 13 in the plugging direction, and the first insertion hole 1211 with a larger diameter is located behind the damping shaft 13 in the plugging direction. Since the large diameter section 1321 is interference fit with the third pivoting part 123, the large diameter section 1321 is clamped in the first insertion hole 1211; since the small diameter section 1322 is interference fit with the second pivoting part 122, the small diameter section 1322 is clamped in the second insertion hole 1212. And the diameter of the second hole 1212 is smaller than the diameter of the first hole 1211, then it can be understood that the diameter of the small diameter section 1322 is smaller than the diameter of the first hole 1211, so that the damping shaft 13 can pass through the first hole 1211 more smoothly and finally be clamped in the second hole 1212, which not only facilitates the assembly of the damping shaft 13, but also facilitates the fixed connection between the damping shaft 13 and the second body 12.

[0054] In a second aspect, the present invention provides a bracket, such as Figure 7 and Figure 8 As shown, the bracket includes the rotating shaft connection structure 1 of the first aspect, and the bracket also includes a first support 2 and a second support 3. The first support 2 is used to connect the electronic device and is rotationally connected to the first body 11 through the first damping structure 21; the second support 3 is rotationally connected to the second body 12 through the second damping structure 31. The rotating shaft connection structure 1, the first support 2 and the second support 3 have a folded state and an unfolded state. The "folded state of the rotating shaft connection structure 1, the first support 2 and the second support 3" means that, ignoring the thickness of the rotating shaft connection structure 1, the first support 2 and the second support 3 themselves, the rotating shaft connection structure 1, the first support 2 and the second support 3 are roughly parallel to each other, and the rotating shaft connection structure 1 is arranged between the first support 2 and the second support 3, and is attached to the first support 2 and the second support 3. The “expanded state of the rotating shaft connection structure 1, the first support 2 and the second support 3” means that the first support 2 rotates a certain angle relative to the second support 3, so that there is an angle between the rotating shaft connection structure 1 and the first support 2, and / or there is an angle between the rotating shaft connection structure 1 and the second support 3, and the second support 3 supports the first support 2 via the rotating shaft connection structure 1, thereby supporting the electronic device connected to the first support 2. It can be understood that Figure 7 The stent is shown in the deployed position. Figure 8 The stand is shown in a folded position.

[0055] Since the bracket provided by the embodiment of the utility model has the above-mentioned rotating shaft connection structure 1, it has the same technical effect as the rotating shaft connection structure 1, that is, it has the advantages of long service life, large damping force, and the ability to hover relatively stably at the position required by the user. In addition, it can be seen from the above that the first body 11 and the second body 12 can rotate relative to each other, and can rely on the damping shaft 13 and the damping sleeve 14 to hover at the position required by the user. In this way, while keeping the overall volume of the bracket unchanged, the rotatable angle of the first support 2 and the movable space of the first support 2 are increased, making the bracket more flexible, and the adjustable angles and positions of the electronic equipment connected to the first support 2 are increased, thereby improving the flexibility of the bracket and facilitating adaptation to the diverse needs of users.

[0056] In some embodiments, Figure 7 and Figure 8 As shown, the first support 2 is provided with a first magnetic member for adsorbing the electronic device, and / or the second support 3 is provided with a second magnetic member for adsorbing the support surface. Specifically, in some possible implementation schemes, only the first support 2 may be provided with a first magnetic member to magnetically connect the electronic device to facilitate the disassembly and assembly of the electronic device. In some possible implementation schemes, only the second support 3 may be provided with a second magnetic member to magnetically connect the support surface, which is convenient for adsorbing the bracket on the support surface and also convenient for separating the bracket from the support surface. Due to the magnetic adsorption force between the second magnetic member and the support surface, the bracket can maintain a relatively stable position on the support surface and fit on the vertical surface of the object, which increases the use scenarios of the bracket and makes it more flexible. In some possible implementation schemes, the first support 2 may be provided with a first magnetic member, and the second support 3 may be provided with a second magnetic member to magnetically connect the electronic device and the support surface at the same time. It should be noted that, in the embodiment in which the second support 3 has a second magnetic part, the support surface can be the surface of an object with ferromagnetic metal or alloy material, or it can be the surface of an object without ferromagnetic metal or alloy material, that is, the bracket can be magnetically connected to the support surface through the second magnetic part, and the second magnetic part may not be magnetically connected to the support surface, only the bottom surface of the second support 3 abuts against the support surface and provides supporting force to the first support 2.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rotating shaft connection structure, characterized in that: include: The first body is provided with a first axial hole; A second body is rotatably connected to the first body and is provided with a second axial hole coaxially arranged with the first axial hole; A damping shaft, the damping shaft comprising a first connecting section and a second connecting section, the first connecting section is inserted into the first shaft hole, and the second connecting section is inserted into the second shaft hole; A damping sleeve, sleeved on the first connecting section of the damping shaft and abutting against the damping shaft; The damping sleeve also abuts against the hole wall of the first axial hole, and the damping sleeve is squeezed and deformed between the hole wall of the first axial hole and the damping shaft; wherein the first connecting section and the hole wall of the first axial hole can rotate relative to each other, and the second connecting section and the second axial hole are relatively fixed, so that the first body and the second body can rotate relative to each other.

2. The rotating shaft connection structure according to claim 1, characterized in that: The damping sleeve is relatively fixed to the hole wall of the first axial hole, and the damping sleeve and the damping shaft can rotate relatively to each other, so that the first connecting section and the hole wall of the first axial hole can rotate relatively to each other; or, the damping sleeve and the damping shaft are relatively fixed to each other, and the damping sleeve and the hole wall of the first axial hole can rotate relatively to each other, so that the first connecting section and the hole wall of the first axial hole can rotate relatively to each other.

3. The rotating shaft connection structure according to claim 1 or 2, characterized in that: The damping sleeve is provided with a cutout extending along the axial direction.

4. The rotating shaft connection structure according to claim 3, characterized in that: The damping sleeve is configured as a rigid member.

5. The rotating shaft connection structure according to claim 3, characterized in that: The first body includes a first pivoting portion forming the first shaft hole, the second body includes a second pivoting portion and a third pivoting portion which are arranged at intervals and jointly form the second shaft hole, and the first pivoting portion is arranged between the second pivoting portion and the third pivoting portion; Wherein, the damping sleeve is arranged in the first pivoting part, and the damping shaft passes through the second pivoting part to the third pivoting part and presses against the damping sleeve in the radial direction.

6. The rotating shaft connection structure according to claim 5, characterized in that: The damping sleeve comprises: The main body is sleeved with the damping shaft and is provided with the cutout along the axial direction; The raised portion protrudes from the main body and presses against the first pivoting portion.

7. The rotating shaft connection structure according to claim 6, characterized in that: The protrusion is arranged around the axis of the damping sleeve, and the protrusion is provided with a notch along the axial direction, and the notch is communicated with the incision.

8. The rotating shaft connection structure according to claim 6, characterized in that: The two end surfaces of the protrusion are located between the two end surfaces of the body, and both the two end surfaces of the protrusion are spaced apart from the two end surfaces of the body.

9. The rotating shaft connection structure according to claim 5, characterized in that: The body is provided with an avoidance groove, and the avoidance groove is used to allow the body and the damping shaft to be at least partially spaced apart in the radial direction.

10. The rotating shaft connection structure according to claim 5, characterized in that: The first pivoting portion is provided with a first guide surface at at least one end, and the first guide surface is located on a side of the first pivoting portion where the first shaft hole is formed; And / or, the damping sleeve is provided with a through hole for the damping shaft to pass through, and the damping sleeve is provided with a second guide surface at least at one end, and the second guide surface is located on a side of the damping sleeve where the through hole is formed.

11. The rotating shaft connection structure according to claim 1, characterized in that: The second connecting section comprises a large diameter section and a small diameter section, the large diameter section is connected to one end of the first connecting section, the small diameter section is connected to the other end of the first connecting section, and both the large diameter section and the small diameter section are interference fit with the second body; Wherein, the diameter of the small-diameter section is smaller than the inner diameter of the damping sleeve.

12. The rotating shaft connection structure according to claim 5, characterized in that: The second pivoting portion is formed with a first plug hole, the third pivoting portion is formed with a second plug hole, and the first plug hole and the second plug hole together form the second shaft hole; Wherein, the diameter of the second plug hole is smaller than the diameter of the first plug hole.

13. A bracket, characterized in that: The bracket comprises the rotating shaft connection structure according to any one of claims 1 to 12, wherein the bracket further comprises: A first support, used to connect the electronic device and rotatably connected to the first body via a first damping structure; A second support is rotatably connected to the second body via a second damping structure; the shaft connection structure, the first support and the second support have a folded state and an unfolded state; Wherein, in the folded state, the rotating shaft connection structure is in contact with the first support and the second support; in the unfolded state, the second support supports the first support via the rotating shaft connection structure.

14. The bracket according to claim 13, characterized in that: The first support is provided with a first magnetic member for adsorbing the electronic device, and / or the second support is provided with a second magnetic member for adsorbing the supporting surface.

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