A type of lamp

Abstract

This application relates to a lamp fixture, including a lamp holder and a light-emitting module. The lamp holder is provided with a lamp head seat, the light-emitting module is provided with a lamp head, the lamp head is provided with a rotating shaft, the lamp head seat is provided with a shaft hole, the rotating shaft passes through one end of the shaft hole, a first limiting washer is provided at the other end of the shaft hole, a connector passes through the first limiting washer and is connected to the rotating shaft; a damping element is provided between the first limiting washer and the end face of the shaft hole.

Description

Technical Field

[0001] This application relates to the field of lighting technology, and more particularly to a lighting fixture. Background Technology

[0002] Traditional connection methods between the light-emitting module and the lamp holder in lighting fixtures are mainly divided into two types: fixed connection and rotatable connection. While the fixed connection method is simple and reliable, it cannot adjust the angle of the light-emitting module, limiting the flexibility of the lighting direction. Existing rotatable connection structures, although allowing the light-emitting module to rotate, generally suffer from the problem of not being able to achieve stable positioning at any angle. When precise positioning is required, complex mechanical structures are often needed, which not only increases manufacturing costs but may also lead to a decrease in structural reliability. Furthermore, existing rotatable connection structures are prone to loosening and wear during long-term use, affecting the lifespan of the lighting fixture.

[0003] To address the aforementioned issues, existing technologies urgently need improvement. Utility Model Content

[0004] This application provides a lighting fixture to solve the above-mentioned technical problems.

[0005] This application provides a lamp fixture, including a lamp holder and a light-emitting module. The lamp holder is provided with a lamp head seat, the light-emitting module is provided with a lamp head, the lamp head is provided with a rotating shaft, the lamp head seat is provided with a shaft hole, the rotating shaft passes through one end of the shaft hole, a first limiting washer is provided at the other end of the shaft hole, a connector passes through the first limiting washer and is connected to the rotating shaft; a damping element is provided between the first limiting washer and the end face of the shaft hole.

[0006] Furthermore, this application also proposes that the connector is a screw, and the end of the rotating shaft is provided with a screw hole, the screw passing through the first limiting washer and connected to the screw hole of the rotating shaft.

[0007] Furthermore, this application also proposes that a second limiting gasket is provided between the connector and the first limiting gasket.

[0008] Furthermore, this application also proposes that the second limiting gasket and the connector are integrally formed.

[0009] Furthermore, this application also proposes that the damping element is a circular washer.

[0010] Furthermore, this application also proposes that the end face of the shaft hole is provided with a washer limiting groove.

[0011] Furthermore, this application also proposes that a sleeve structure is provided on the side of the first limiting gasket facing the rotating shaft, and the sleeve structure is fitted onto the rotating shaft to form an interference fit.

[0012] Furthermore, this application also proposes that the wall surface of the sleeve structure is provided with a radially penetrating slot, and the outer periphery of the rotating shaft is provided with a corresponding limiting boss, the limiting boss being embedded in the slot.

[0013] Furthermore, this application also proposes that the outer wall surface of the rotating shaft has a tapered structure.

[0014] Furthermore, this application also proposes that a wear-resistant gasket be provided between the lamp holder and the shaft hole.

[0015] The technical solutions provided in this application have the following advantages compared with the prior art:

[0016] Compared with the prior art, the lamp and its light-emitting module connection structure provided in this application, through the cooperation structure of the rotating shaft and shaft hole combined with damping components and limiting shims, can effectively prevent structural loosening and reduce wear while realizing flexible rotation and adjustment of the light-emitting module. It has the advantages of simple structure, flexible adjustment, stable positioning and long service life. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0020] Figure 1 This is a schematic diagram of the lamp structure provided in an embodiment of this application;

[0021] Figure 2 A partial cross-sectional view of the lamp holder and lamp base assembly provided in an embodiment of this application;

[0022] Figure 3 This is an exploded view of the lamp structure provided in an embodiment of this application;

[0023] Figure 4 This is a schematic diagram of the lamp holder structure provided in an embodiment of this application;

[0024] Figure 5This is a schematic diagram of a washer-type screw structure provided in an embodiment of this application;

[0025] Figure 6 This is a schematic diagram of the first limiting gasket structure provided in an embodiment of this application;

[0026] Figure 7 This is a schematic diagram of the rotation of the light-emitting module of the lamp provided in the embodiment of this application. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0028] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0029] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0030] In existing technologies, traditional lamps typically use a fixed connection or a simple rotating structure between the light-emitting module and the lamp holder. Fixed connections cannot adjust the lighting angle, while rotating structures often rely on gears or snap-fit ​​mechanisms for positioning, resulting in complex structures that can only remain at preset angles. For example, wall lamps in public places need to adjust the illumination direction according to the usage scenario, but existing rotating structures cannot maintain stability at any angle and are prone to loosening or wear during frequent adjustments.

[0031] To address the aforementioned issues, traditional rotary positioning mechanisms suffer from high mechanical complexity. Analysis revealed that the core challenge in rotary positioning lies in balancing rotational freedom with continuous resistance. Attempts were made to use an elastic element in conjunction with the rotating shaft, but it was found that a single elastic structure struggled to balance resistance and durability. Further research demonstrated that separating axial limiting and radial damping effectively simplified the structure, and the approach of controlling friction by adjusting the tightness of the connecting parts gradually took shape.

[0032] Therefore, as Figure 1-3 As shown, this application proposes a lamp fixture including a lamp holder 1 and a light-emitting module 5. The lamp holder 1 is provided with a lamp head seat 15, the light-emitting module 5 is provided with a lamp head 55, the lamp head 55 is provided with a rotating shaft 551, the lamp head seat 15 is provided with a shaft hole 151, the rotating shaft 551 passes through one end of the shaft hole 151, a first limiting washer 56 is provided at the other end of the shaft hole 151, a connector 57 passes through the first limiting washer 56 and is connected to the rotating shaft 551, and a damping member 58 is provided between the first limiting washer 56 and the end face of the shaft hole 151.

[0033] The rotating shaft 551 is a cylindrical or conical rotating support component whose diameter can form a clearance fit with the shaft hole. The shaft hole 151 is a through hole penetrating the lamp holder 15, used to accommodate the rotating shaft 551 and provide a rotation fulcrum. The first limiting washer 56 is an annular part with a central through hole, which can be made of spring steel sheet by stamping or plastic part, used to limit the axial displacement of the rotating shaft. The connecting part 57 is a fixing element that, after connection, enables the damping element 58 to have a certain damping effect, or a fixing element with adjustable tightness. It can be a threaded connecting part, which achieves axial compression by screwing into the threaded hole at the end of the rotating shaft, or it can be a multi-stage bayonet structure. The damping element 58 is an annular element with elastic deformation capability, which can be made of rubber or polyurethane material, and generates radial expansion when compressed to increase frictional resistance.

[0034] Specifically, after the rotating shaft 551 passes through the shaft hole 151, its axial movement range is limited by the first limiting washer 56. The connecting piece 57 passes through the first limiting washer 56 and connects to the rotating shaft 551. When tightened, it pushes the first limiting washer to compress the damping element. The damping element 58 undergoes elastic deformation after being compressed, and its outer edge generates frictional resistance with the end face of the shaft hole 151. In one embodiment, adjusting the connecting piece can change the compression amount of the damping element 58, thereby precisely controlling the torque value required for the rotation of the rotating shaft 551. When an external force causes the light-emitting module 5 to rotate, the frictional force transmitted between the rotating shaft 551 and the damping element 58 through the first limiting washer 56 can counteract the external force, achieving positioning and holding at any angle.

[0035] Compared to existing technologies, traditional rotary positioning mechanisms require multiple locking teeth or ratchet components, while this solution achieves the function using only a combination of a rotating shaft 551, a first limiting washer 56, and a damping element 58. Existing gear positioning structures have angular interval limitations; this solution utilizes continuous friction damping to achieve stepless positioning. Traditional solutions require replacing damping elements or adjusting some assembly parts to adjust damping; this solution allows for direct torque adjustment to a suitable range via a connecting component.

[0036] Through the above technical solutions, this application solves the problem of excessive complexity in the rotary positioning mechanism and realizes the self-locking function of the lamp light-emitting module 5 at any rotation angle. The cooperative design of the rotating shaft 551 and the damping component 58 simplifies the mechanical structure and reduces the requirements for the machining accuracy of the parts. In another embodiment, the use of an adjustable connector 57 allows the rotational resistance to be flexibly adjusted according to usage requirements. Of course, a non-adjustable connector 57 can also be used, where the preset damping effect is achieved during initial assembly. The separate design of axial limiting and radial damping avoids the defects of easy wear in traditional integrated structures and improves the reliability of the rotating mechanism.

[0037] Combination Figure 2-5 As shown, this embodiment further proposes a technical solution in which the connector 57 adopts a screw structure, the end of the rotating shaft 551 is provided with a screw hole 553, and the screw passes through the first limiting washer 56 to form a threaded connection with the screw hole 553.

[0038] Here, "screw" refers to a fastener with external threads, specifically a standard hexagonal head screw or a countersunk head screw, whose thread parameters can be selected according to the shaft size. "Screw hole 553" refers to the internal hole opened at the end of the shaft; the thread can be formed by tapping or directly tapped using the screw during assembly. The through-hole diameter of the first limiting washer 56 is slightly larger than the screw shank diameter to ensure assembly clearance.

[0039] Specifically, after passing through the central through hole of the first limiting washer 56, the screw is screwed into the screw hole at the end of the shaft via its thread. When the screw is tightened, its axial locking force presses the first limiting washer 56 against the surface of the damping member 58, causing the damping member 58 to deform and generate contact surface friction. This friction force forms a dynamic balance with the torque generated when the shaft 551 rotates, thereby achieving the positioning function of the shaft at any angle. The screw's thread self-locking characteristic effectively prevents the connection from loosening, and the arrangement of the screw axis coinciding with the shaft axis avoids interference from lateral forces on the rotational stability of the shaft.

[0040] Compared to existing technologies, traditional rotary positioning structures often employ snap-fit ​​or pin-type limiting devices, requiring multiple positioning grooves and elastic claws, resulting in a large number of parts and complex assembly processes. This solution achieves a combined function of axial locking and friction positioning using a single screw, simplifying the structure while improving positioning reliability. Existing technologies using plug-in connectors pose a risk of axial movement, while the threaded fit of the screw in this solution eliminates axial clearance.

[0041] Through the above technical solution, this application solves the problems of redundant parts, complex assembly, and easy positioning failure in traditional rotating structures of lighting fixtures, achieving a synergistic effect of free adjustment of rotation angle and reliable positioning. The screw connection method reduces the requirements for machining accuracy, and the standardized selection of its parts significantly improves production efficiency and ease of maintenance. The stable preload formed by the threaded fastening ensures the durability of the damping performance during long-term use of the lighting fixture.

[0042] Please continue to refer to this. Figure 2-5 As shown, this embodiment further proposes to add a second limiting gasket 571 between the connector 57 and the first limiting gasket 56.

[0043] The second limiting washer 571 refers to an annular metal or plastic sheet disposed between the head of the connector 57 and the first limiting washer 56. Specifically, it can be a stainless steel sheet or a nylon washer, with an outer diameter larger than the diameter of the connector head but smaller than the outer diameter of the first limiting washer. This washer increases the contact area to disperse the axial pressure transmitted by the connector, preventing localized deformation of the first limiting washer 56. The connector 57 is a fastener used to fix the rotating shaft to the lamp holder. Specifically, it can be a countersunk screw or bolt. After passing through the first limiting washer 56 and the second limiting washer 571, it engages with the threaded hole at the end of the rotating shaft 551, applying axial preload through tightening.

[0044] Specifically, the second limiting washer 571 is assembled between the head of the connector and the first limiting washer. When the connector 57 is tightened, the second limiting washer 571 evenly transmits the axial load to the surface of the first limiting washer 56. Since the contact area between the second limiting washer 571 and the first limiting washer 56 is larger than the contact area between the head of the connector 57 and the second limiting washer 571, the pressure per unit area is reduced. Simultaneously, the elastic deformation capability of the second limiting washer 571 can absorb stress fluctuations caused by tolerances during assembly, preventing the first limiting washer 56 from undergoing plastic deformation or surface wear due to local overload. This structure also reduces frictional losses caused by relative rotation between the connector 57 and the first limiting washer 56 by limiting direct contact, thereby maintaining the stability of the shaft's rotational resistance.

[0045] Compared to existing technologies, traditional rotating structures for lighting fixtures typically rely on a single limiting washer to directly bear the fastening force of the connector, which can easily lead to warping and deformation of the washer edge or embedding of the connector head into the washer surface. This solution adds a second limiting washer 571 to form a double-layer load distribution structure, effectively improving stress distribution without adding additional complex mechanisms. This design does not require changes to the original connector specifications; structural reinforcement can be achieved simply by adding standard components.

[0046] Through the above technical solution, this application solves the problem of contact surface crushing caused by stress concentration between the connector 57 and the first limiting gasket 56, and prevents uneven rotational resistance of the shaft caused by local deformation. At the same time, the buffering effect of the second limiting gasket 571 reduces the risk of structural damage caused by preload control deviation during assembly, and improves the durability and angle positioning accuracy of the lamp rotation adjustment mechanism.

[0047] like Figure 5 As shown, this embodiment further proposes that the second limiting gasket 571 and the connector 57 are integrally formed.

[0048] In this context, a one-piece molding structure refers to a structure in which two components are formed into an inseparable whole through a single processing step. This can be achieved using casting, forging, or powder metallurgy processes. The continuity of the material ensures that there is no assembly gap between the connector and the locating washer. In one embodiment, a washer-equipped screw is a structural form in which the connector and locating washer are integrally molded.

[0049] Specifically, the connector 57 and the second limiting washer 571 are integrally formed through a molding process, with the second limiting washer 571 directly fixed to the head end face of the connector 57. During assembly, when the connector 57 passes through the first limiting washer 56 and is screwed into the screw hole of the rotating shaft, the second limiting washer 571 moves synchronously with the connector 57, and its limiting surface always abuts against the outer surface of the first limiting washer 56. Since the integral molding structure eliminates the need for independent assembly of separate components, no additional fixing measures are required between the second limiting washer 571 and the connector, avoiding relative displacement caused by vibration or rotation.

[0050] Compared to existing technologies, traditional solutions require the second limiting gasket to be processed separately and fixed to the connector via clips or welding, which not only increases assembly steps but also poses a risk of detachment due to insecure fixing. This solution, however, integrates both components into a single unit using a one-piece molding process, simplifying the production process and directly eliminating potential failure points of the split structure through material continuity.

[0051] Through the above technical solution, this application solves the problem of complex assembly of the connector and the second limiting gasket, and avoids separation of the two due to vibration or repeated rotation, thereby improving the axial constraint stability of the lamp rotation adjustment mechanism and reducing the risk of screws coming out.

[0052] This embodiment further proposes a technical solution of setting a circular washer as a damping element 58 between the end face of the shaft hole 151 and the first limiting washer 56.

[0053] The circular washer refers to a planar element with a closed annular structure, which can be made of rubber or silicone, generating contact friction through the elastic deformation of the material. The shaft hole end face refers to the annular planar area at the opening of the lamp holder shaft hole, which can be machined to form a flat contact surface to bear the axial pressure of the circular washer. The damping component is a functional part that generates motion resistance through friction; different damping forces can be achieved by adjusting the thickness and material hardness of the circular washer.

[0054] Specifically, a circular washer is pressed between the end face of the shaft hole and the first limiting washer. When the shaft drives the lamp head to rotate, the circular washer and the end face of the shaft hole generate circumferential sliding friction. Due to the geometric symmetry of the circular washer, a uniformly distributed frictional torque is formed in the contact area with the end face of the shaft hole. The direction of this torque is always opposite to the direction of rotation, thus producing a stable damping effect at any rotation angle. The closed-loop structure of the circular washer avoids local stress concentration, and its standardized shape allows for the direct use of general industrial washers without the need for custom processing.

[0055] Compared to existing technologies, traditional rotary positioning structures require multiple sets of spring clamping devices or angle locking mechanisms, leading to an increase in the number of parts and assembly complexity. However, using a single circular washer as a damping component achieves full-angle damping through symmetrical friction and simplifies parts supply chain management by utilizing standard parts.

[0056] Through the above technical solution, this embodiment achieves smooth damping control of the lamp light-emitting module 5 during rotation, allowing the lamp head 55 to remain stably stationary at any angle. The uniform frictional torque generated by the circular washer eliminates the vibration phenomenon caused by local contact in traditional structures, while its standardized characteristics reduce production costs. During assembly, the damping function can be integrated simply by placing the circular washer into the end face of the shaft hole 151, without the need for additional adjustment procedures.

[0057] Please continue to refer to this. Figure 2 As shown, this embodiment further proposes that the end face of the shaft hole 151 is also provided with a washer limiting groove 1511.

[0058] The washer limiting groove 1511 refers to an annular groove structure machined on the end face of the shaft hole 151. It is formed by an annular protrusion on the end face of the shaft hole 151 or by an axial recess on the end face. Its depth is less than the thickness of the damping member 58, so that the first limiting washer 56 can press the damping member 58 together during assembly. This groove is used to accommodate the outer edge of the damping member 58 and restricts its radial movement by the side wall. When the shaft rotates, the washer generates frictional resistance. After its outer edge is embedded in the limiting groove, the axial displacement is blocked by the side wall of the groove.

[0059] Specifically, when the shaft drives the lamp head to rotate, sliding friction occurs between the damping element 58 and the first limiting washer 56. The annular sidewall of the washer limiting groove completely encloses the outer peripheral edge of the damping element, preventing it from moving axially or radially. During rotation, the damping element 58 is always confined within the limiting groove, maintaining a constant contact area with the end face of the shaft. When the lamp is adjusted to the target angle, the frictional torque generated by the damping element counteracts the inertia of the shaft, preventing accidental rotation due to vibration or external forces.

[0060] Through the above technical solution, this application eliminates the risk of damping components shifting or detaching during lamp rotation, ensuring uniform contact pressure distribution between the rotating shaft and the damping components. Therefore, the lamp can maintain a stable damping effect when positioned at any angle, avoiding positioning failure caused by damping component misalignment.

[0061] like Figure 2 and Figure 6 As shown, this embodiment further proposes that the first limiting gasket 56 is provided with a sleeve structure 561 on the side facing the rotating shaft, and the sleeve structure 561 is sleeved on the rotating shaft 551 to form an interference fit.

[0062] The sleeve structure 561 refers to a cylindrical component integrally extended from the first limiting gasket 56. It can be achieved using metal stamping or injection molding processes, with its inner diameter slightly smaller than the outer diameter of the shaft to achieve an interference fit. An interference fit means that there is radial dimensional interference between the sleeve and the shaft, which can be achieved by controlling the tolerance range of the inner wall of the sleeve and the outer wall of the shaft, so that continuous compressive stress is generated at the contact surface between the two.

[0063] Specifically, the sleeve structure 561 is fitted onto the outer surface of the rotating shaft 551. Due to the radial pressure generated by the interference fit, a constant frictional contact is formed between the inner wall of the sleeve 561 and the rotating shaft 551. When the rotating shaft rotates under the action of an external force, the frictional force on the contact surface between the sleeve and the rotating shaft forms rotational damping, the magnitude of which is determined by the interference fit. The integrated design of the sleeve structure 561 and the first limiting washer integrates the rotational resistance generation unit and the limiting unit into a single component. When the rotating shaft is axially fixed by the connecting member, the radial constraint of the sleeve and the axial buffering effect of the damping member together maintain the rotating shaft in a stationary state at any angle. In addition, when the rotating shaft 551 rotates, the circumferential force is mainly borne through the connection with the sleeve, thereby weakening the circumferential force on the connecting member 57 and further reducing the risk of the connecting member 57 becoming loose.

[0064] Compared with existing technologies, traditional rotary positioning structures require independent locking bolts or ratchet mechanisms, resulting in a large number of parts and complex assembly processes. This solution directly generates rotational damping through the interference fit between the sleeve and the rotating shaft, eliminating the need for auxiliary locking components. At the same time, the integrated design of the sleeve structure on the limiting shim reduces assembly steps, improving the overall structural compactness.

[0065] Through the above technical solution, this application achieves a self-locking function for the lamp's light-emitting module at any rotation angle, maintaining the set angle without the need for an independent locking device, while providing uniform resistance feedback during rotation adjustment. The interference fit between the sleeve and the rotating shaft maintains a stable coefficient of friction during long-term use, avoiding loosening caused by excessive force on the connecting parts.

[0066] This embodiment further proposes that the sleeve structure 561 has a radially penetrating slot on its wall surface, and the outer periphery of the rotating shaft 551 has a corresponding limiting boss 552, which is embedded in the slot 562.

[0067] Among them, the slot 562 refers to the opening structure formed radially through the sleeve wall. Specifically, it can be processed into one or more parallel slots by wire cutting or stamping. The limiting boss 552 is incorporated into the slot 562 during assembly.

[0068] Specifically, when the rotating shaft 551 is inserted into the sleeve structure 561, the wall surface of the sleeve structure 561 is subjected to radial compression. At this time, the slot 562 allows the sleeve wall surface to elastically contract radially, thereby reducing the assembly pressure required for the interference fit. During disassembly, when external force is applied to the sleeve, the slotted structure allows the sleeve wall surface to expand outward, reducing the frictional resistance between it and the rotating shaft. This design balances the tightness during assembly with the ease of disassembly through elastic deformation characteristics. At the same time, the gap formed by the slot provides compensation space for the wear of the sleeve material during long-term use. The setting of the limiting boss 552 allows the first limiting washer 56 to rotate directly when the rotating shaft 551 rotates, weakening the axial force on the connecting piece 57 and further ensuring the connection reliability of the connecting piece 57.

[0069] Through the above technical solution, this application achieves elastic adaptive adjustment during the assembly of the sleeve and the shaft, ensuring connection stability while significantly reducing the axial pressure required for assembly. During maintenance and disassembly, the slotted expansion characteristic of the sleeve wall makes separating the shaft and sleeve easier, effectively solving the problem of difficult disassembly of traditional rigid sleeves. The setting of the limiting boss ensures the connection reliability of the connectors.

[0070] refer to Figure 4 As shown in the figure, this embodiment further proposes that the outer wall surface of the rotating shaft 551 is a tapered structure.

[0071] The tapered structure refers to the outer wall of the rotating shaft 551 having a gradually changing diameter along the axial direction. This can be achieved by turning or molding. The tapered matching relationship allows the sleeve to produce adjustable radial elastic deformation when it contacts the rotating shaft.

[0072] Specifically, when the sleeve structure 561 is fitted onto the tapered shaft 551, the increase in axial displacement causes the contact area between the sleeve structure 561 and the shaft 551 to gradually expand, and the interference fit amount increases accordingly. During this process, the sleeve structure 561 undergoes radial expansion deformation guided by the tapered structure, forming a progressively increasing frictional resistance. This resistance provides smooth damping adjustment during rotation and achieves angular positioning through frictional self-locking when rotation stops. The geometric characteristics of the tapered structure allow for compensation of manufacturing tolerances by adjusting the axial assembly depth, achieving stable contact without relying on high-precision fits, thereby reducing machining difficulty.

[0073] This embodiment further proposes a solution of adding a wear-resistant shim 54 between the lamp holder 55 and the shaft hole 151.

[0074] The wear-resistant pad 54 is an annular insulating component disposed between the lamp holder and the end face of the shaft hole 151, and can be made of polytetrafluoroethylene or nylon. This component forms a physical isolation layer by covering the contact area between the lamp holder and the shaft hole, thereby avoiding direct friction between the metal parts.

[0075] Specifically, the wear-resistant shim is fitted into the mating area of ​​the lamp holder insertion shaft hole, with its inner diameter matching the outer diameter of the lamp holder and its outer diameter matching the inner diameter of the shaft hole. When the lamp holder 55 rotates around the shaft hole 151, the wear-resistant shim 54 bears the rotational friction force, dispersing the frictional stress across the entire contact surface through the wear-resistant properties of the material itself, thereby reducing the wear rate between the lamp holder 55 and the lamp holder 15. Since the wear-resistant shim 54 only needs to cover the contact surface through a simple annular structure, without requiring structural modifications to the lamp holder or shaft hole, the service life of the rotating mechanism can be extended without increasing assembly complexity.

[0076] Based on the above, such as Figure 7 As shown, in this embodiment, the light-emitting module 5 can rotate around the lamp holder 1. Under the structural design of the columnar lamp holder 1, the light-emitting module 5 can rotate 90° in different directions and can remain self-locking at any angle.

[0077] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0078] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0079] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0080] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0081] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0082] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0083] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Since these modifications and variations fall within the scope of the claims and their equivalents, this application also intends to include these modifications and variations.

[0084] The above description describes specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A lamp fixture, comprising a lamp holder (1) and a light-emitting module (5), wherein the lamp holder (1) is provided with a lamp head holder (15) and the light-emitting module (5) is provided with a lamp head (55), characterized in that: The lamp head (55) is provided with a rotating shaft (551), and the lamp head base (15) is provided with a shaft hole (151). The rotating shaft (551) is inserted through one end of the shaft hole (151), and a first limiting washer (56) is provided at the other end of the shaft hole (151). A connector (57) passes through the first limiting washer (56) and is connected to the rotating shaft (551). A damping element (58) is provided between the first limiting gasket (56) and the end face of the shaft hole (151).

2. The luminaire of claim 1, wherein, The connector (57) is a screw, and the end of the rotating shaft (551) is provided with a screw hole (552). The screw passes through the first limiting washer (56) and is connected to the screw hole (552) of the rotating shaft (551).

3. The luminaire of claim 2, wherein, A second limiting gasket (571) is also provided between the connector (57) and the first limiting gasket (56).

4. The luminaire of claim 3, wherein, The second limiting gasket (571) and the connector (57) are integrally formed.

5. The luminaire of claim 1, wherein, The damping element (58) is a circular washer.

6. The luminaire of claim 5, wherein, The end face of the shaft hole (151) is also provided with a washer limiting groove (1511).

7. The luminaire of claim 1, wherein, The first limiting gasket (56) is provided with a sleeve structure (561) on the side facing the rotating shaft (551), and the sleeve structure (561) is sleeved on the rotating shaft (551) to form an interference fit.

8. The luminaire of claim 7, wherein, The sleeve structure (561) has a radially penetrating slot (562) on its wall surface, and the outer periphery of the rotating shaft (551) has a corresponding limiting boss (552) which is embedded in the slot (562).

9. The luminaire of claim 7, wherein, The outer wall of the rotating shaft (551) has a tapered structure.

10. The light fixture of claim 1, wherein, A wear-resistant pad (54) is also provided between the lamp head (55) and the shaft hole (151).

Images