Double-rotating-shaft hinge lampshade mechanism

Abstract

The invention belongs to the technical field of lamp mounting structures, discloses a double-rotating-shaft hinge lampshade mechanism, and relates to a lampshade connecting mechanism of a ceiling embedded lamp. The ceiling lamp mainly comprises three parts: 1, a lamp holder fixedly mounted on a ceiling, and a fixed rotating shaft and a lock groove arranged on the lamp holder; one side of the lampshade is provided with a hook, the other side of the lampshade is provided with an elastic spring bolt with a slope step, and an operation hole is formed in the position corresponding to the elastic spring bolt; the double-rotating-shaft assembly comprises a fixed rotating shaft, a movable rotating shaft and a rigid connecting rod, and the hook is connected to the movable rotating shaft in a sleeving mode to form a triangular linkage structure. In the clamping process, the spring bolt step makes contact with the lock groove to generate horizontal thrust, the movable rotating shaft rotates around the fixed rotating shaft to offset displacement, and the lampshade is tightly attached to a ceiling. During disassembly, the elastic lock tongue is pushed through the operation hole, so that the elastic lock tongue is separated from the lock groove. The mechanism has the advantages of being stable in structure, high in fitting precision, convenient to assemble and disassemble and good in anti-falling performance.

Description

Technical Field

[0001] This invention belongs to the field of lighting installation structure technology, specifically relating to a lampshade connection mechanism for ceiling-mounted lighting fixtures, which is particularly suitable for recessed lighting fixtures that need to be closely fitted to the ceiling. Background Technology

[0002] In indoor lighting equipment, ceiling-recessed or flush-mounted lamps are widely used due to their space-saving and aesthetic appeal. The connection structure between the lampshade and the lamp holder of these lamps directly affects the installation stability, appearance integrity, and ease of maintenance.

[0003] In existing technologies, the connection between the lampshade and the lamp holder of ceiling lights mainly adopts a threaded connection structure. Although this structure provides a stable connection, disassembly requires multiple rotations of the lampshade, making the operation cumbersome. This is especially true for large lampshades, where it is difficult for a single person to operate. Alternatively, a single snap-fit ​​connection structure is used. While this structure is easier to disassemble than the threaded connection, it cannot accommodate the slight displacement of the lampshade during engagement, making it difficult to ensure that the lampshade fits perfectly against the ceiling. This can easily lead to localized lifting, affecting the decorative effect. Another option is a single-axis hinge with snap-fit ​​connection structure. However, a single axis can only allow the lampshade to rotate around a fixed axis and cannot accommodate the aforementioned horizontal displacement. This results in the lampshade not fitting perfectly against the ceiling, or the hinge and snap-fit ​​being subjected to additional stress during forced installation, causing component deformation and damage, and shortening the lifespan of the light fixture.

[0004] Therefore, there is an urgent need for a new type of lampshade connection mechanism that can simultaneously meet the requirements of precise ceiling fit, easy disassembly, and adaptability to displacement during installation. Summary of the Invention

[0005] This invention provides a dual-axis hinge lampshade mechanism. Through the innovative design of the dual-axis hinge structure, combined with the cooperation of the elastic locking tongue and the operating hole, it achieves multiple requirements such as precise lampshade fitting, convenient disassembly, and structural stability.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A double-axis hinged lampshade mechanism includes a lamp holder, which is fixedly installed on the ceiling. It has a fixed axis on the first side and a locking groove on the second side.

[0008] The lampshade has a hook on its first side and a resilient locking tongue on its second side, with a step at the end of the resilient locking tongue.

[0009] A dual-axis hinge assembly includes a fixed axis, a movable axis, and a connecting rod connecting the two, wherein the hook is sleeved on the movable axis;

[0010] A triangular linkage structure is formed between the fixed shaft, connecting rod, and movable shaft to ensure that the movable shaft can rotate stably around the fixed shaft;

[0011] The step generates a horizontal thrust when the elastic locking tongue engages with the locking groove, driving the lampshade to move horizontally, causing the movable rotating shaft to rotate around the fixed rotating shaft until the lampshade is completely in contact with the ceiling.

[0012] Furthermore, the connecting rod is a rigid straight rod, with its two ends hinged to a fixed rotating shaft and a movable rotating shaft, respectively;

[0013] The length of the connecting rod is designed to match the size of the lampshade, ensuring that the rotation stroke of the movable shaft can just offset the horizontal displacement, so that there is no additional stress when the lampshade is in contact with the ceiling.

[0014] Furthermore, the extension and retraction direction of the elastic locking tongue forms an acute angle with the opening direction of the locking groove, and the slope angle of the step is 30°-60°;

[0015] The acute angle design enhances the anti-disengagement capability of the elastic locking tongue after engagement, preventing the lampshade from falling off due to vibration or accidental contact with external forces.

[0016] Furthermore, the lampshade is provided with an operating hole corresponding to the elastic locking tongue position, with a hole diameter of 5-10mm.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] The present invention utilizes a linkage structure of fixed shaft, connecting rod, and movable shaft of a dual-axis hinge assembly to adapt in real time to the horizontal displacement generated when the elastic locking tongue engages, preventing the lampshade from lifting off in some areas, ensuring that the lampshade fits the ceiling as a whole after being closed, improving the aesthetic appeal of the decoration, and reducing dust accumulation in the gaps.

[0019] The operating hole, combined with the elastic locking tongue design, allows for easy removal of the lamp cover without the need for rotation or forceful prying. Simply push the elastic locking tongue through the small hole to remove the lamp cover. This can be done by a single person. The rigid connecting rod and the double rotating shaft work together to disperse the stress generated by displacement, preventing component deformation and damage, and extending the life of the lamp.

[0020] The sharp angle between the elastic locking tongue and the locking groove, along with the anti-dislodgement design of the step, effectively prevents the lampshade from falling off due to vibration or collision during daily use, thus improving safety. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall planar structure of the present invention;

[0022] Figure 2 This is an enlarged structural diagram of the elastic locking tongue and locking groove of the present invention;

[0023] Figure 3 This is a three-dimensional structural diagram of the lamp holder of the present invention.

[0024] In the diagram: 1. Lamp holder; 11. Fixed pivot; 12. Locking groove; 2. Lampshade; 21. Hook; 22. Elastic locking tongue; 221. Step; 23. Operating hole; 3. Double pivot hinge assembly; 31. Movable pivot; 32. Connecting rod. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0026] Example 1

[0027] like Figures 1-3 As shown, a double-axis hinge lampshade mechanism includes a lamp holder 1, which is fixedly installed on the ceiling. A fixed pivot 11 is provided on the first side, and a locking groove 12 is provided on the second side.

[0028] Includes lampshade 2, which has a hook 21 on the first side and a resilient locking tongue 22 on the second side, with a step 221 at the end of the resilient locking tongue 22;

[0029] The assembly includes a double-axis hinge assembly 3, comprising a fixed axis 11, a movable axis 31, and a connecting rod 32 connecting the two. A hook 21 is sleeved on the movable axis 31, forming a triangular linkage structure of the fixed axis, the connecting rod 32, and the movable axis, ensuring that the movable axis 31 can rotate stably around the fixed axis 11.

[0030] When the elastic locking tongue engages with the locking groove 12, the step 221 generates a horizontal thrust, driving the lampshade 2 to move horizontally, causing the movable rotating shaft 31 to rotate around the fixed rotating shaft 11 until the lampshade 2 is completely in contact with the ceiling.

[0031] The connecting rod 32 is a rigid straight rod, with its two ends hinged to the fixed rotating shaft 11 and the movable rotating shaft 31 respectively. The length of the connecting rod 32 is designed to match the size of the lampshade 2, ensuring that the rotation stroke of the movable rotating shaft 31 can just offset the horizontal displacement, so that the lampshade 2 fits the ceiling without additional stress.

[0032] The extension and retraction direction of the elastic locking tongue 22 is at an acute angle to the opening direction of the locking groove 12, and the slope angle of the step 221 is 30°-60°. The acute angle design can enhance the anti-disengagement ability of the elastic locking tongue after it is engaged, and prevent the lampshade 2 from falling off due to vibration or external force.

[0033] The lampshade 2 has an operating hole 23 corresponding to the position of the elastic locking tongue, with a hole diameter of 5-10mm.

[0034] Key operational steps of this invention: Hook 21 of lampshade 2 is hung on movable shaft 31 of lamp holder 1, and lampshade 2 is lifted upward so that elastic locking tongue contacts the entrance of lock groove 12. When the step 221 of elastic locking tongue collides with lock groove 12, a horizontal thrust is generated, forcing lampshade 2 to move slightly to the left. At this time, movable shaft 31 of hook 21 rotates around fixed shaft 11 of lamp holder 1 to achieve horizontal displacement compensation. Elastic locking tongue is fully engaged in lock groove 12, and lampshade 2 fits tightly against the ceiling.

[0035] To open the lampshade 2, the worker can press the elastic locking tongue 22 with their finger or a special tool through the operating hole 23 on the lampshade 2, causing the elastic locking tongue 22 to disengage from the locking groove 12. After the elastic locking tongue disengages, the lampshade 2 will shift slightly to the right under the weight of the worker or by the external force of the worker, and the hook 21 will return to its original position.

[0036] Through repeated experiments and verifications by the inventors, it has been found that when the acute angle and the inclined plane angle are within the range of 30°-60°, they can provide sufficient horizontal thrust to drive the lampshade displacement while ensuring smooth sliding of the locking tongue, avoiding jamming due to excessive angle or insufficient thrust due to insufficient angle. Preferably, the angle is 45°, at which point the mechanical efficiency is highest.

[0037] In summary, the dual-axis hinge lampshade mechanism of the present invention provides an innovative solution with broad market application prospects.

[0038] It should be noted that the parts not covered in this invention are the same as or can be implemented using existing technologies.

[0039] Furthermore, in the description of the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "set up," "equipped with," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0040] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can modify or make equivalent substitutions to the present invention without departing from the spirit and scope of the technical solution of the present invention. Such modified or equivalent substitutions, if they do not depart from the core design principles and functional characteristics of the present invention, should be included within the scope of the technical solution claimed by the present invention.

Claims

1. A double-axis hinge lampshade mechanism, characterized in that, include: The lamp holder (1) is fixedly installed on the ceiling, with a fixed pivot (11) on the first side and a locking groove (12) on the second side; The lampshade (2) has a hook (21) on its first side and an elastic locking tongue (22) on its second side. One end of the connecting rod (32) is hinged to the fixed rotating shaft (11) and the other end is hinged to the movable rotating shaft (31). The end of the elastic locking tongue (22) has a step (221). The dual-axis hinge assembly (3) includes a movable pivot (31) and a connecting rod (32) connecting the two, wherein the hook (21) is sleeved on the movable pivot (31); The step (221) generates a horizontal thrust when the elastic locking tongue (22) is engaged in the locking groove (12), driving the lampshade (2) to move horizontally, causing the movable rotating shaft (31) to rotate around the fixed rotating shaft (11) until the lampshade (2) is completely in contact with the ceiling.

2. The double-axis hinge lampshade mechanism according to claim 1, characterized in that, The connecting rod (32) is a rigid straight rod, with its two ends hinged to a fixed rotating shaft (11) and a movable rotating shaft (31), respectively.

3. The double-axis hinge lampshade mechanism according to claim 1, characterized in that, The extension and retraction direction of the elastic locking tongue (22) forms an acute angle of 30°-60° with the opening direction of the locking groove (12), and the slope angle of the step (221) is 30°-60°.

4. The double-axis hinge lampshade mechanism according to claim 1, characterized in that, The lampshade (2) is provided with an operation hole (23) at the position corresponding to the elastic locking tongue (22), with a hole diameter of 5-10mm.

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