Rotating shaft device and charging support

Abstract

The utility model relates to the technical field of charging supports, and discloses a rotating shaft device and a charging support, the rotating shaft device comprises a shaft sleeve, a shaft core, a fixing sleeve and an elastic C-shaped sleeve, one end of the shaft sleeve is provided with an accommodating hole, the C-shaped sleeve is sleeved at one end of the shaft core, the fixing sleeve is fixedly connected at the other end of the shaft core, and the C-shaped sleeve is sleeved at the other end of the shaft core. The C-shaped sleeve is further arranged in the containing hole and located outside the fixing sleeve. The C-shaped sleeve is in first interference fit with the inner wall of the containing hole, the C-shaped sleeve is in second interference fit with one end of the shaft core, and the magnitude of interference of the first interference fit is larger than that of the second interference fit, so that the C-shaped sleeve and the shaft sleeve are relatively fixed, and the C-shaped sleeve and the shaft core are fixed. And the C-shaped sleeve and the shaft core rotate relatively. The rotating shaft device disclosed by the utility model is convenient to adjust and has a better fixing effect.

Description

Technical Field

[0001] The utility model relates to the technical field of charging brackets, and in particular to a rotating shaft device and a charging bracket. Background Art

[0002] With the continuous development of technology, the types of electronic products are becoming more and more diverse. Electronic products generally include headphones, mobile phones, watches, etc. A charging stand is a device that can both support and charge electronic products. When realizing the functions of support and charging, in order to adjust the position, the charging stand generally has a folding structure, and the folding structure is rotated and adjusted through a rotating shaft device.

[0003] At present, the fixing effect of the hinge device of the charging stand is not good. When the electronic product is adjusted to a certain position by adjusting the folding structure, the hinge device is prone to unintended rotation changes due to the gravity of the electronic product, causing unintended changes in the position of the electronic product, affecting its use and charging effect. Utility Model Content

[0004] The utility model provides a rotating shaft device and a charging bracket to solve the technical problem that the fixing effect of the rotating shaft device in the prior art is not good.

[0005] In order to solve the above technical problems, the utility model proposes a rotating shaft device including a shaft sleeve, a shaft core, a fixing sleeve and an elastic C-shaped sleeve, wherein one end of the shaft sleeve is provided with a receiving hole, the C-shaped sleeve is sleeved on one end of the shaft core, the fixing sleeve is fixedly connected to the other end of the shaft core, and the C-shaped sleeve is also arranged in the receiving hole and located outside the fixing sleeve;

[0006] There is a first interference fit between the C-shaped sleeve and the inner wall of the accommodating hole, and there is a second interference fit between the C-shaped sleeve and one end of the shaft core, and the interference amount of the first interference fit is greater than the interference amount of the second interference fit, so that the C-shaped sleeve and the shaft sleeve are relatively fixed, and the C-shaped sleeve and the shaft core are relatively rotated.

[0007] Optionally, the shaft device further comprises a convex strip, and the convex strip is arranged on the outer surface of the C-shaped sleeve, so that the first interference fit is formed between the C-shaped sleeve and the inner wall of the accommodating hole.

[0008] Optionally, a transitional curved surface is provided at the junction of the convex strip and the C-shaped sleeve.

[0009] Optionally, the convex strip is arranged along the circumference of the C-shaped sleeve.

[0010] Optionally, the number of the convex strips is at least four, and the convex strips are evenly distributed on the outer surface of the C-shaped sleeve.

[0011] Optionally, a first limiting plane is formed on an outer surface of the other end of the sleeve, and a connecting hole is formed on the first limiting plane.

[0012] Optionally, the shaft core includes a shaft body and a connecting shaft, the shaft body and the connecting shaft are coaxially connected, the C-shaped sleeve is sleeved on the shaft body, the fixed sleeve is fixedly connected to the connecting shaft, the outer surface of one end of the connecting shaft away from the shaft body is provided with a second limiting plane, the inner wall of the fixed sleeve is provided with a second raised plane, and the second limiting plane and the second raised plane cooperate with each other.

[0013] The utility model also provides a charging stand, comprising a first functional module, a second functional module and the above-mentioned rotating shaft device;

[0014] The first functional module is provided with a first mounting hole and a second mounting hole, the shaft sleeve is arranged in the first mounting hole, the fixed connection is in the second mounting hole, and the first functional module and the second functional module are hingedly connected via the rotating shaft device.

[0015] Compared with the prior art, in the rotating shaft device of the utility model, the C-shaped sleeve has a notch so that its cross section is C-shaped. Since the C-shaped sleeve has a notch, the size of the notch can be changed to a certain extent, so that the C-shaped sleeve has a certain elasticity. When installing the C-shaped sleeve, the notch of the C-shaped sleeve is first reduced, and then the C-shaped sleeve is installed on one end of the shaft core. Due to the action of the shaft core, the notch will expand, so that the C-shaped sleeve and one end of the shaft core will produce a second interference fit.

[0016] When one end of the shaft core with the C-shaped sleeve is installed in the receiving hole, the C-shaped sleeve and the inner wall of the receiving hole generate a first interference fit. Since the interference amount of the first interference fit is greater than the interference amount of the second interference fit, when the shaft core and the sleeve are relatively rotated by external force, the C-shaped sleeve and the sleeve are relatively fixed and no relative rotation occurs. However, relative rotation occurs between the C-shaped sleeve and one end of the shaft core, and since there is a second interference fit between the C-shaped sleeve and one end of the shaft core, there is also friction between the C-shaped sleeve and one end of the shaft core. This friction creates a damping effect between the C-shaped sleeve and the shaft core. When the external force stops acting on the sleeve and the shaft core, the sleeve and the shaft core can be relatively fixed due to the damping effect. When the shaft device of the utility model is applied to products such as a charging stand, the shaft device can withstand a certain supporting force. Therefore, the charging stand is easy to adjust and has a good fixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] One or more embodiments are exemplarily described by corresponding drawings, which do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and the figures in the drawings do not constitute proportional limitations unless otherwise stated.

[0018] Figure 1 It is a cross-sectional view of a rotating shaft device in one embodiment of the utility model;

[0019] Figure 2 An exploded view of a rotating shaft device in one embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of an electronic bracket in one embodiment of the utility model;

[0021] Figure 4 This is an exploded cross-sectional view of an electronic bracket in another embodiment of the present invention. DETAILED DESCRIPTION

[0022] In order to facilitate the understanding of the utility model, the utility model is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "vertical", "horizontal", "left", "right", "inside", "outside" and similar expressions used in this specification are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not used to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.

[0024] In addition, the terms first, second, third, etc. in the specification and claims are only used for the purpose of describing the same technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated, nor necessarily describing the order or time sequence. The terms are interchangeable where appropriate. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0025] Similarly, the terms "fixed" and "connected" used in the specification and claims should not be construed as limited to direct connection. Therefore, the expression "device A is connected to device B" should not be limited to a device or system in which device A is directly connected to device B, but means that there is a path between device A and device B, which may be a path including other devices or tools.

[0026] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0027] Please refer to Figure 1 to Figure 2 The present embodiment discloses a rotating shaft device 100, comprising a shaft sleeve 10, a shaft core 20, a fixing sleeve 50 and an elastic C-shaped sleeve 30, wherein a receiving hole 12 is opened at one end of the shaft sleeve 10, the C-shaped sleeve 30 is sleeved at one end of the shaft core 20, the fixing sleeve 50 is fixedly connected to the other end of the shaft core 20, the C-shaped sleeve 30 is also arranged in the receiving hole 12 and is located outside the fixing sleeve 50; a first interference fit is formed between the C-shaped sleeve 30 and the inner wall of the receiving hole 12, a second interference fit is formed between the C-shaped sleeve 30 and one end of the shaft core 20, and the interference amount of the first interference fit is greater than the interference amount of the second interference fit, so that the C-shaped sleeve 30 and the shaft sleeve 10 are relatively fixed, and the C-shaped sleeve 30 and the shaft core 20 are relatively rotated.

[0028] In the rotating shaft device 100 of this embodiment, the C-shaped sleeve 30 has a notch 32 so that its cross section is C-shaped. The shaft sleeve 10, the shaft core 20 and the C-shaped sleeve 30 can all be made of stainless steel. Since the C-shaped sleeve 30 has a notch 32, the size of the notch 32 can be changed to a certain extent, so that the C-shaped sleeve 30 has a certain elasticity. When installing the C-shaped sleeve 30, the notch 32 of the C-shaped sleeve 30 is first reduced, and then the C-shaped sleeve 30 is installed on one end of the shaft core 20. Due to the action of the shaft core 20, the notch 32 will expand, so that the C-shaped sleeve 30 and one end of the shaft core 20 have a second interference fit. The fixed sleeve 50 can be made of metal material, and the fixed sleeve 50 is sleeved on the other end of the shaft core 20.

[0029] When one end of the shaft core 20 with the C-shaped sleeve 30 is installed in the receiving hole 12, the C-shaped sleeve 30 and the inner wall of the receiving hole 12 form a first interference fit. Since the interference amount of the first interference fit is greater than the interference amount of the second interference fit, when the shaft core 20 and the sleeve 10 are relatively rotated by external force, the C-shaped sleeve 30 and the sleeve 10 are relatively fixed and no relative rotation occurs. However, relative rotation occurs between the C-shaped sleeve 30 and one end of the shaft core 20, and since there is a second interference fit between the C-shaped sleeve 30 and one end of the shaft core 20, there is also friction between the C-shaped sleeve 30 and one end of the shaft core 20. This friction creates a damping effect between the C-shaped sleeve 30 and the shaft core 20. When the external force stops acting on the sleeve 10 and the shaft core 20, the sleeve 10 and the shaft core 20 can be relatively fixed due to the damping effect. When the hinge device 100 of this embodiment is applied to products such as a charging stand, the hinge device 100 can withstand a certain supporting force. Therefore, the charging stand is easy to adjust and has a good fixing effect.

[0030] In one embodiment, the shaft device 100 further includes a convex strip 40, which is disposed on the outer surface of the C-shaped sleeve 30 so as to form the first interference fit between the C-shaped sleeve 30 and the inner wall of the receiving hole 12. By providing the convex strip 40, the interference amount of the first interference fit is greater than the interference amount of the second interference fit.

[0031] In one embodiment, the junction of the convex strip 40 and the C-shaped sleeve 30 has a transition surface. By setting the transition surface, when one end of the shaft core 20 with the C-shaped sleeve 30 is installed into the receiving hole 12, the end of the receiving hole 12 has less resistance to the convex strip 40, which facilitates the assembly of the shaft core 20, the C-shaped sleeve 30 and the sleeve 10.

[0032] In one embodiment, the convex strips 40 are arranged along the circumference of the C-shaped sleeve 30. When arranged in this way, the convex strips 40 generate a relatively balanced friction force between the C-shaped sleeve 30 and the inner wall of the accommodating hole 12, so that the first interference fit is relatively stable.

[0033] In one embodiment, the number of the ridges 40 is at least four, and each of the ridges 40 is evenly distributed on the outer surface of the C-shaped sleeve 30. When arranged in this way, the ridges 40 further generate a more balanced friction force between the C-shaped sleeve 30 and the inner wall of the accommodating hole 12, further making the first interference fit more stable.

[0034] Please refer to Figure 3 and Figure 4The present embodiment also discloses a charging bracket 1000, comprising a first functional module 200, a second functional module 300 and the above-mentioned rotating shaft device 100; a first mounting hole 210 and a second mounting hole 220 are opened on the first functional module 200, the shaft sleeve 10 is arranged in the first mounting hole 210, and the fixing sleeve 50 is arranged in the second mounting hole 220, and the first functional module 200 and the second functional module 300 are hingedly connected through the rotating shaft device 100.

[0035] The first functional module 200 may be a first wireless charging module, the second functional module 300 may be a second wireless charging module, and the first wireless charging module and the second wireless charging module are folded and unfolded through the hinge device 100. The charging bracket 1000 of this embodiment also has the above advantages, which will not be repeated here.

[0036] In one embodiment, the outer surface of the other end of the sleeve 10 is provided with a first limiting plane 14, and the first limiting plane 14 is provided with a connecting hole 16. Correspondingly, a first protruding plane (not shown in the figure) is provided on the inner wall of the first mounting hole 210, and the first protruding plane is in contact with the first limiting plane 14, so that the sleeve 10 and the first functional module 200 cannot rotate relative to each other, and then the sleeve 10 and the first functional module 200 are connected by a connecting member (not shown in the figure). Specifically, the connecting member is a screw, a pin, etc., one end of the connecting member is connected to the first functional module 200, and the other end of the connecting member is inserted into the connecting hole 16.

[0037] In one embodiment, the shaft core 20 includes a shaft body 22 and a connecting shaft 24, the shaft body 22 and the connecting shaft 24 are coaxially connected, the C-shaped sleeve 30 is sleeved on the shaft body 22, the fixing sleeve 50 is fixedly connected to the connecting shaft 24, the outer surface of the connecting shaft 24 away from the shaft body 22 is provided with a second limiting plane 26, the inner wall of the fixing sleeve 50 is provided with a second raised plane 52, and the second limiting plane 26 and the second raised plane 52 cooperate with each other. The diameter of the connecting shaft 24 is larger than the shaft body 22, and the second raised plane 52 contacts the second limiting plane 26, so that the connecting shaft 24 and the second functional module 300 cannot rotate relative to each other.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes in different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Although the present invention has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in each of the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of each embodiment of the present invention.

Claims

1. A rotating shaft device, characterized in that: It includes a shaft sleeve, a shaft core, a fixed sleeve and an elastic C-shaped sleeve, wherein one end of the shaft sleeve is provided with a receiving hole, the C-shaped sleeve is sleeved on one end of the shaft core, the fixed sleeve is fixedly connected to the other end of the shaft core, and the C-shaped sleeve is also arranged in the receiving hole and located outside the fixed sleeve; There is a first interference fit between the C-shaped sleeve and the inner wall of the accommodating hole, and there is a second interference fit between the C-shaped sleeve and one end of the shaft core, and the interference amount of the first interference fit is greater than the interference amount of the second interference fit, so that the C-shaped sleeve and the shaft sleeve are relatively fixed, and the C-shaped sleeve and the shaft core are relatively rotated.

2. The rotating shaft device according to claim 1, characterized in that: It also includes a convex strip, which is arranged on the outer surface of the C-shaped sleeve to form the first interference fit between the C-shaped sleeve and the inner wall of the accommodating hole.

3. The rotating shaft device according to claim 2, characterized in that: The junction between the convex strip and the C-shaped sleeve has a transition curved surface.

4. The rotating shaft device according to claim 2, characterized in that: The convex strips are arranged along the circumference of the C-shaped sleeve.

5. The rotating shaft device according to claim 4, characterized in that: The number of the convex strips is at least four, and the convex strips are evenly distributed on the outer surface of the C-shaped sleeve.

6. The rotating shaft device according to claim 1, characterized in that: A first limiting plane is formed on the outer surface of the other end of the sleeve, and a connecting hole is formed on the first limiting plane.

7. The rotating shaft device according to claim 1, characterized in that: The shaft core includes a shaft body and a connecting shaft, the shaft body and the connecting shaft are coaxially connected, the C-shaped sleeve is sleeved on the shaft body, the fixed sleeve is fixedly connected to the connecting shaft, the outer surface of one end of the connecting shaft away from the shaft body is provided with a second limiting plane, the inner wall of the fixed sleeve is provided with a second raised plane, and the second limiting plane and the second raised plane cooperate with each other.

8. A charging stand, characterized in that: It comprises a first functional module, a second functional module and the shaft device according to any one of claims 1 to 7; The first functional module is provided with a first mounting hole and a second mounting hole, the shaft sleeve is arranged in the first mounting hole, the fixed connection is in the second mounting hole, and the first functional module and the second functional module are hingedly connected via the rotating shaft device.

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