Rotating shaft structure for back sunning lamp

Abstract

The utility model relates to a rotating shaft structure (1) for a back sunning lamp. The rotating shaft structure is mainly composed of a rotating shaft shell (10), a connecting shell (20) and a connecting piece (30). The rotating shaft shell (10) is disc-shaped, and a circular groove (12) with a through hole (14) is formed in the center of the rotating shaft shell (10) and used for being connected with a base; the connecting shell (20) is fixed to the lamp pole through the connecting part (22), and a fixing plate (26) is arranged in the containing area (24) of the connecting shell (20). The core connecting piece (30) comprises a flange (32), a shaft sleeve (34) and a friction plate (36), a flange (33) of the flange is precisely matched with the through hole (14), the friction plate (36) is located in the groove (12), and the shaft sleeve (34) clamps the rotating shaft shell in an interference fit mode to form adjustable rotating damping. According to the structure, multi-angle adjustment and stable hovering of the lamp pole are achieved through radial positioning of the flange and the through hole, constraint of the friction plate by the groove and rigid connection of the flange and the fixing plate.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of lamps and lanterns, especially relate to a angle adjusting pivot structure for sunbathing lamp. BACKGROUND

[0002] The existing sunbathing lamp, in order to facilitate user to adjust the irradiation angle of the lamp head according to the need of oneself, usually sets up the pivot mechanism between the lamp head and the support structure. However, the pivot structure of some existing designs is relatively simple, and the friction damping is insufficient or unreliable, resulting in the lamp head being easily deviated, drooping or even unable to be stably positioned at any intermediate position after being adjusted to the required angle due to the self-gravity or slight external disturbance during use, which greatly affects the user's experience and the actual effect of sunbathing. Therefore, how to provide a pivot structure capable of reliably and stably positioning at any angle is a technical problem to be solved in the field. SUMMARY

[0003] In view of the above situation, it is necessary to provide a pivot structure (1) for sunbathing lamp, comprising a pivot shell (10) for connecting with the base and a connecting shell (20) for connecting with the lamp pole, and a connecting piece (30) for providing rotation damping between the pivot shell (10) and the connecting shell (20);

[0004] The pivot shell (10) is disc-shaped, and a circular groove (12) is arranged in the middle, and the circular groove (12) is provided with a through hole (14);

[0005] The connecting shell (20) has a connecting part (22) for accommodating part of the connecting piece (30), and the connecting part (22) is provided with a placing area (24);

[0006] The connecting piece (30) comprises a flange (32) with a flange (33), a shaft sleeve (34) and a friction plate (36), the flange (33) of the flange (32) passes through the through hole (14) of the pivot shell (10), the friction plate (36) is arranged on one side of the flange (33), and the shaft sleeve (34) is arranged on the other side of the flange (33), so that the pivot shell (10) is clamped between the friction plate (36) and the shaft sleeve (34)

[0007] ;

[0008] The placing area (24) is fixedly provided with a fixed plate (26), and the flange (32) is connected with the fixed plate (26).

[0009] Preferably, the flange (33) of the flange (32) is shaped and sized to fit the through hole (14) of the shaft housing (10), and when the flange (33) is arranged in the through hole (14), the friction plate (36) is located in the circular groove (12) of the shaft housing (10).

[0010] Preferably, the flange (32) is fixed to the fixed plate (26) by screwing.

[0011] Preferably, at least two threaded columns (28) and at least two abutting plates (29) are arranged in the placement area (24), the fixed plate (26) is fixedly connected with the threaded columns (28) by screwing, and is abutted by the abutting plates (29).

[0012] Preferably, four threaded columns (28) are diagonally arranged in the placement area (24), and the abutting plates (29) are arranged at the upper and lower ends of the placement area (24).

[0013] Preferably, the friction surface of the friction plate (36) in contact with the shaft housing (10) and the friction surface of the shaft sleeve (34) in contact with the shaft housing (10) are both flat annular friction surfaces. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structure schematic view of a shaft structure of an embodiment of the utility model arranged in a back sun lamp.

[0015] Figure 2 is a structure schematic view of a shaft structure of an embodiment of the utility model.

[0016] Figure 3 is an exploded view of a shaft structure of an embodiment of the utility model.

[0017] Figure 4 is a structure schematic view of a connecting housing of an embodiment of the utility model.

[0018] Figure 5 is a structure schematic view of a connecting piece of an embodiment of the utility model.

[0019] Figure 6 is a sectional view of a shaft structure of an embodiment of the utility model.

[0020] Figure 7 is a structure schematic view of a connecting housing of an embodiment of the utility model.

[0021] Figure 8 is a structure schematic view of a connecting piece arranged in a connecting housing of an embodiment of the utility model. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the following will make a further detailed description of the utility model's rotating shaft structure for sunbathing lamp in combination with the drawings and examples.

[0023] In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more than two; The orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the utility model, it should be pointed out that, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; It can be mechanically connected, or it can be electrically connected; It can be directly connected, or it can be indirectly connected through an intermediate medium; It can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0025] Please see Figures 1 to 8 The rotating shaft structure (1) for sunbathing lamp of the utility model embodiment, the rotating shaft structure (1) mainly includes the rotating shaft shell (10) for being connected with the sunbathing lamp base and the connecting shell (20) for being connected with the lamp pole. The connecting piece (30) is arranged between the rotating shaft shell (10) and the connecting shell (20), the function of the connecting piece (30) is to realize the relative rotation between the rotating shaft shell (10) and the connecting shell (20), and adjustable rotation damping is provided, so that the lamp pole and the lamp head connected with the connecting shell (20) can realize angle adjustment relative to the base connected with the rotating shaft shell (10) and stably stay at any position.

[0026] Further, the rotating shaft housing (10) is designed in a disc shape, which is advantageous for compact structure and large friction contact area. In the central region, the rotating shaft housing (10) is provided with a circular groove (12) for accommodating a part of the friction plate (36) and assisting in positioning. In the center of the circular groove (12), a through hole (14) is provided. The through hole (14) is used for the part of the connecting member (30) to pass through, and is a key part for achieving the clamping structure.

[0027] The connecting housing (20) is matched with the rotating shaft housing (10). The connecting housing (20) has a connecting part (22) configured to accommodate the part of the connecting member (30) and provided with a placement area (24) inside. The placement area (24) is an important part for fixing the connecting member (30), which can be a cavity or a region with a specific mounting surface, for example. The other end of the connecting housing (20) is usually designed with a structure (not shown in the figure, but known to those skilled in the art) for connecting with the lamp pole, such as a threaded hole, a clamping structure or a plug-in structure.

[0028] Further, the connecting member (30) is the core component for achieving the rotating connection and providing damping, which includes a flange (32), a shaft sleeve (34) and a friction plate (36). The flange (32) has a flange (33) with an outer dimension designed to pass through the through hole (14) of the rotating shaft housing (10). When the flange (32) is in place, the friction plate (36) is arranged on one side of the flange (33) (for example, the side close to the circular groove (12) of the rotating shaft housing (10)), and the shaft sleeve (34) is arranged on the other side of the flange (33) (for example, the side away from the circular groove (12)), and the shaft sleeve (34) is connected with the flange (33) in an interference fit. Through this layout, the disc part of the rotating shaft housing (10) is effectively clamped between the friction plate (36) and the shaft sleeve (34). The flange (32) is fixedly arranged on the fixing plate (26) in the placement area (24) of the connecting housing (20), so that the flange (32) rotates with the connecting housing (20).

[0029] Please refer to Figures 1 to 8In order to ensure the precise fit and rotational stability between the connecting piece (30) and the rotating shaft housing (10), the flange (33) of the flange (32) is designed in shape and size to precisely fit the through hole (14) of the rotating shaft housing (10). For example, both can be designed as a cylindrical surface fit with a certain tolerance. When the flange (33) passes through and is arranged in the through hole (14), such a fit relationship can provide good radial positioning between the flange (32) and the rotating shaft housing (10). Meanwhile, further defined, when the flange (33) is in place, the friction plate (36) is precisely located in the circular groove (12) of the rotating shaft housing (10). The circular groove (12) forms a radial constraint and axial positioning aid for the friction plate (36), ensuring that the friction plate (36) is always in contact with the designated friction surface of the rotating shaft housing (10), improving the reliability and consistency of the friction effect. Such precise fit design and positioning structure is an important basis for achieving stable rotation damping and angle retention.

[0030] Please refer to Figures 1 to 8 The connection between the flange (32) and the fixed plate (26) is preferably threaded connection. For example, threaded holes can be provided on the flange (32), or threaded holes can be provided on the fixed plate (26), and the two are tightly fixed together by screws. Through threaded connection, the flange (32) and the fixed plate (26) form a rigid connection, ensuring that the rotation of the connecting housing (20) can be reliably transmitted to the flange (32) and the sleeve (34) and the friction plate (36) rotating integrally therewith. In addition, the degree of tightening of the threaded connection determines the axial clamping force of the flange (32) on the rotating shaft housing (10) assembly (including the rotating shaft housing (10), the friction plate (36) and the sleeve (34)) to a certain extent. The clamping force is the direct cause of the friction damping, therefore, by adjusting the tightening torque of the threaded connection, the damping size of the rotating shaft can be pre-set or fine-tuned within a certain range. Such threaded connection provides a simple and reliable connection method and the possibility of damping adjustment.

[0031] Please refer to Figures 1 to 8In order to stably support the fixing plate (26) and ensure its position accuracy during rotation and force bearing, at least two threaded columns (28) and at least two abutting plates (29) are arranged in the placement area (24) of the connecting shell (20). The fixing plate (26) is fixed radially and circumferentially by screwing the screws through the corresponding through holes into the threaded columns (28). At the same time, the abutting plates (29) are configured to abut against the specific surface of the fixing plate (26) in the axial direction. When the flange (32) generates an axial tension on the fixing plate (26) through threaded connection, these abutting plates (29) bear the axial load and prevent the fixing plate (26) from moving or deforming in the axial direction. This fixing and supporting method combining threaded columns (28) and abutting plates (29) provides multi-dimensional stable support for the fixing plate (26), ensuring that the clamping force between the flange (32) and the shaft shell (10) will not change due to the movement or deformation of the fixing plate (26), thereby guaranteeing the stability and consistency of the rotation damping.

[0032] Please refer to Figures 1 to 8 In a preferred embodiment, four threaded columns (28) are arranged diagonally in the placement area (24). This diagonal arrangement of four threaded columns (28) can provide balanced and dispersed radial and circumferential support points for the fixing plate (26), improving the overall fixing strength and torsional resistance. In addition, the abutting plates (29) are arranged at the upper and lower ends of the placement area (24). This means that the abutting plates (29) support the edges or surfaces of the fixing plate (26) in the upward and downward directions perpendicular to the shaft direction, effectively bearing the axial tension transmitted by the flange (32) and dispersing the stress. This specific four-point diagonal fixing combined with the upper and lower end support structure layout ensures compactness while providing high levels of stability and load-bearing capacity, further improving the reliability and durability of the shaft structure (1), and is particularly suitable for application scenarios that need to bear certain loads and frequently adjust angles.

[0033] Please refer to Figures 1 to 8The friction surface of the friction plate (36) in contact with the rotating shaft housing (10) and the friction surface of the shaft sleeve (34) in contact with the rotating shaft housing (10) are both flat annular friction surfaces. In one embodiment, the friction plate (36) can be an annular gasket made of a specific high-friction material (such as rubber, engineering plastic, or sintered material), and the contact surface with the rotating shaft housing (10) is a flat annular surface. The shaft sleeve (34) is usually made of metal or hard plastic, and the contact surface with the rotating shaft housing (10) is also a flat annular surface. The corresponding surface of the rotating shaft housing (10) in contact with it is also a flat annular surface. This flat annular friction surface design ensures that the friction contact surface can fully and uniformly fit when subjected to clamping force, so that the contact pressure is evenly distributed. Uniform contact pressure produces stable and linear friction damping, avoiding sudden changes or unevenness of friction caused by poor contact, effectively preventing the "stick-slip" phenomenon during angle adjustment, making the rotation process smooth and smooth, and users can easily adjust the lamp holder to any desired angle and reliably maintain it. The flat annular design also simplifies the processing difficulty of the components. The beneficial effects of this embodiment are that by optimizing the geometry of the friction contact surface, the damping uniformity and angle positioning accuracy of the rotating shaft structure (1) are greatly improved, providing excellent use feel and stability.

[0034] In the implementation process of the present application, the rotating shaft housing (10) and the connecting housing (20) can be made of metal (such as aluminum alloy, zinc alloy) or high-strength engineering plastic through processes such as die casting and injection molding. The flange (32) and the shaft sleeve (34) in the connecting piece (30) are usually made of metal or hard plastic to ensure sufficient strength and wear resistance. The material of the friction plate (36) is selected according to the required friction coefficient, wear resistance and durability. The threaded column (28) and the abutting plate (29) are integrally formed with the connecting housing (20).

[0035] The present application provides a rotating shaft structure (1) suitable for sunbathing lamps, which can achieve arbitrary angle adjustment and reliable retention through the specific structure design and mutual cooperation of the above-mentioned components. The structure is compact, reliable in operation, and has good damping effect, effectively improving the functionality and user experience of sunbathing lamps.

[0036] It should be noted that the above embodiments are only used to illustrate the principles and concepts of the present application, and those skilled in the art can make various modifications and changes to them without departing from the spirit and scope of the present application. For example, the number and specific layout of the threaded column and the abutting plate can be adjusted under the principle of achieving the same supporting function; the shape of the friction plate can also have slight changes within the allowable range of the circular groove, etc. Therefore, the protection scope of the present application should be subject to the appended claims.

[0037] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A rotating shaft structure (1) for a back-sunlight lamp, characterized in that, It includes a pivot housing (10) for connection with a base and a connecting housing (20) for connection with a lamp post, and a connector (30) for providing rotational damping between the pivot housing (10) and the connecting housing (20); The rotating shaft housing (10) is disc-shaped, with a circular groove (12) in the middle, and a through hole (14) in the circular groove (12); The connecting housing (20) has a connecting portion (22) for accommodating part of the connecting member (30), and the connecting portion (22) is provided with a placement area (24); The connector (30) includes a flange (32) with a flange (33), a bushing (34) and a friction plate (36). The flange (33) of the flange (32) passes through the through hole (14) of the shaft housing (10). The friction plate (36) is disposed on one side of the flange (33) and the bushing (34) is disposed on the other side of the flange (33), so that the shaft housing (10) is clamped between the friction plate (36) and the bushing (34). A fixing plate (26) is fixedly installed in the placement area (24), and the flange (32) is connected to the fixing plate (26).

2. The rotating shaft structure (1) for a back-sunlight lamp according to claim 1, characterized in that, The shape and size of the flange (33) of the flange (32) are adapted to the through hole (14) of the shaft housing (10). When the flange (33) is located in the through hole (14), the friction plate (36) is located in the circular groove (12) of the shaft housing (10).

3. The rotating shaft structure (1) for a back-sunlight lamp according to claim 2, characterized in that, The flange (32) is fixed to the fixing plate (26) by a threaded connection.

4. The rotating shaft structure (1) for a back-sunlight lamp according to claim 3, characterized in that, The placement area (24) is provided with at least two threaded posts (28) and at least two abutment plates (29). The fixing plate (26) is fixed to the threaded posts (28) by threads and is abutted by the abutment plates (29).

5. The rotating shaft structure (1) for a back-sunlight lamp according to claim 4, characterized in that, The placement area (24) is provided with four threaded posts (28) diagonally, and the upper and lower ends of the placement area (24) are provided with abutment plates (29).

6. The rotating shaft structure (1) for a back-sunlight lamp according to claim 1, characterized in that, The friction surfaces of the friction plate (36) in contact with the shaft housing (10) and the friction surfaces of the bushing (34) in contact with the shaft housing (10) are both flat annular friction surfaces.

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