Angle-adjustable LED lamp holder structure

Abstract

The utility model provides an angle-adjustable LED (light-emitting diode) lamp holder structure, which relates to the technical field of LED lamp holders and comprises a lamp holder, the top of the lamp holder is rotatably connected with a rotating seat, rotating shafts are fixed at two ends of the rotating seat, the surfaces of the rotating shafts are rotatably connected with interfaces, clamping bulges are fixed on the surfaces of the rotating shafts in an array manner, rotating holes are formed in the joints of the interfaces and the rotating shafts, and sliding chutes are formed in the inner walls of the rotating holes in an array manner. A sliding groove is formed in the middle of the rotating seat, a limiting protrusion is connected to the inner wall of the sliding groove in a sliding mode, a spring is fixed between the limiting protrusion and the sliding groove, a worm wheel is fixed to the bottom of the rotating seat, and a worm is meshed with the surface of the worm wheel. The limiting protrusions and the clamping protrusions which are adjacent to each other are staggered at intervals, under the action of the springs, the limiting protrusions and the clamping protrusions are tightly clamped, the worm is rotated to drive the worm gear to rotate, the rotating base is driven to rotate, the angle of the LED lamp is adjusted in all directions, and the LED lamp is not limited by the rotating shaft.

Description

Technical Field

[0001] The utility model relates to the technical field of LED lamp holders, and in particular to an LED lamp holder structure with adjustable angle. Background Art

[0002] As a new type of lighting source, LED lamps are favored by the general public and have received strong support from the country for their significant features such as energy saving, health, environmental protection and long life. LED lamp holders are required when installing LED lamps. LED lamp holders are divided into bayonet, screw and other installation methods.

[0003] In the prior art, the LED lamp holder has a simple structure, which is usually not convenient for adjusting the angle of the LED lamp. The existing angle adjustment structure mostly uses a fixed bracket to assist in angle adjustment. Due to the limitation of the rotating shaft, the angle can usually only be rotated left or right during the angle adjustment process, and cannot be adjusted arbitrarily in all directions within a certain range, which is inconvenient to adjust. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose an angle-adjustable LED lamp holder structure.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an adjustable angle LED lamp holder structure, including a lamp holder, a plug is provided on the side of the lamp holder, a swivel seat is rotatably connected to the top of the lamp holder, a swivel shaft is fixed at both ends of the swivel seat, an interface is rotatably connected to the surface of the swivel shaft, and an internal thread is provided at the top of the interface, an array of engaging protrusions are fixed on the surface of the swivel shaft, and the connection between the interface and the swivel shaft is set as a swivel hole, a sliding groove is provided in an array on the inner wall of the swivel hole, and a limiting protrusion is slidably connected to the inner wall of the sliding groove, and a spring is fixed between the limiting protrusion and the sliding groove, a worm wheel is fixed at the bottom of the swivel seat, a worm is meshed on the surface of the worm wheel, and both ends of the worm are connected to the swivel seat bearing.

[0006] Preferably, a knob is fixed at one end of the worm, so that the user can rotate the worm conveniently through the knob.

[0007] Preferably, the knob surface array is provided with anti-skid patterns, which increase the friction coefficient of the knob surface and further facilitate the user to rotate the worm.

[0008] Preferably, the ends of the limiting protrusion and the engaging protrusion are both hemispherical. The hemispherical shape facilitates the engaging protrusion to squeeze the limiting protrusion when rotating, and is smoother when adjusting the angle of the LED lamp without getting stuck.

[0009] Preferably, the number of the limiting protrusions and the engaging protrusions is the same, and the adjacent limiting protrusions and the engaging protrusions are staggered, so as to facilitate the fixation between the limiting protrusions and the engaging protrusions, so that the interface will not be easily loosened after the angle is adjusted.

[0010] Preferably, a shield is fixed on the interface surface to better gather the light, making it more concentrated and softer, avoiding the glare of direct LED light, and at the same time protecting against dust and preventing damage to the interface.

[0011] Preferably, the helix lead angle of the worm is smaller than the equivalent friction angle between the worm and the worm wheel meshing teeth. When the helix lead angle of the worm is smaller than the equivalent friction angle between the worm and the worm wheel meshing teeth, the worm gear structure has self-locking property, that is, the worm can drive the worm wheel to rotate, but the worm wheel cannot drive the worm to rotate, thereby improving the stability of the LED lamp angle adjustment.

[0012] Beneficial Effects

[0013] In the prior art, the LED lamp holder has a simple structure, which is usually not convenient for adjusting the angle of the LED lamp. The existing angle adjustment structure mostly uses a fixed bracket to assist in angle adjustment. Due to the limitation of the rotating shaft, it can usually only be rotated to the left or right during the angle adjustment process, and cannot be adjusted arbitrarily in all directions within a certain range, which is inconvenient to adjust. To solve this problem, the utility model adopts an integrated all-round adjustment structure. By rotating the interface, the rotating holes at both ends of the interface rotate and squeeze the engaging protrusions at the same time. The engaging protrusions squeeze the limiting protrusions. The angle of the interface is adjusted according to actual needs, so that the adjacent limiting protrusions and the engaging protrusions are staggered. Under the action of the spring, the limiting protrusions and the engaging protrusions are tightly engaged to prevent them from loosening. The worm can be rotated to drive the worm wheel to rotate, thereby driving the rotating seat to rotate, and then adjusting the angle of the LED lamp to achieve all-round adjustment. It is not only not limited by the rotating shaft, but also convenient and simple to adjust, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the protective cover of the utility model;

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the worm gear structure of the utility model;

[0017] Figure 4 It is a schematic diagram of the three-dimensional structure of the transfer hole of the utility model;

[0018] Figure 5 It is a schematic diagram of the three-dimensional structure of the limiting protrusion in the utility model;

[0019] Figure 6 It is a three-dimensional structural schematic diagram of the rotating shaft and the engaging protrusion in the utility model.

[0020] Legend:

[0021] 1. Lamp holder; 2. Plug; 3. Interface; 4. Protective cover; 5. Rotating seat; 601. Rotating hole; 602. Slide groove; 7. Spring; 8. Limiting protrusion; 9. Rotating shaft; 10. Engaging protrusion; 12. Worm gear; 13. Worm; 14. Knob. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0023] The specific embodiments of the present utility model are described below in conjunction with the accompanying drawings. Specific embodiment:

[0025] Reference Figure 1-6 , an adjustable angle LED lamp holder structure, comprising a lamp holder 1, a plug 2 is arranged on the side of the lamp holder 1, a rotating seat 5 is rotatably connected to the top of the lamp holder 1, a rotating shaft 9 is fixed at both ends of the rotating seat 5, an interface 3 is rotatably connected to the surface of the rotating shaft 9, and a shield 4 is fixed on the surface of the interface 3. The shield 4 is used to better gather light, make the light more concentrated and softer, avoid direct glare from LED light, and at the same time play a role in protecting dust and preventing damage to the interface 3. The top of the interface 3 is provided with an internal thread, and the surface of the rotating shaft 9 is fixed with a clamping protrusion 10, and the connection between the interface 3 and the rotating shaft 9 is set as a rotating hole 601, and the inner wall of the rotating hole 601 is provided with a sliding groove 602, and the inner wall of the sliding groove 602 is slidably connected with a limiting protrusion 8, and a spring 7 is fixed between the limiting protrusion 8 and the sliding groove 602, and a worm wheel 12 is fixed at the bottom of the rotating seat 5, and a worm 13 is meshed on the surface of the worm wheel 12, and both ends of the worm 13 are connected to the bearing of the rotating seat 5. The helix lead angle of the worm 13 is smaller than the equivalent friction angle between the meshing teeth of the worm 13 and the worm wheel 12. When the helix lead angle of the worm 13 is smaller than the equivalent friction angle between the meshing teeth of the worm 13 and the worm wheel 12, the worm gear structure has a self-locking property, that is, the worm 13 can drive the worm wheel 12 to rotate, and the worm wheel 12 cannot drive the worm 13 to rotate, thereby improving the stability of the angle adjustment of the LED lamp. A knob 14 is fixed at one end of the worm 13. The knob 14 facilitates the user to rotate the worm 13. The surface array of the knob 14 is provided with anti-skid patterns. The anti-skid patterns increase the friction coefficient on the surface of the knob 14, further facilitating the user to rotate the worm 13.

[0026] The ends of the limiting protrusion 8 and the engaging protrusion 10 are both hemispherical. The hemispherical shape facilitates the engaging protrusion 10 to squeeze the limiting protrusion 8 when it rotates, and it is smoother when adjusting the angle of the LED lamp without getting stuck. The number of limiting protrusions 8 and engaging protrusions 10 is the same, and the intervals between adjacent limiting protrusions 8 and engaging protrusions 10 are staggered. It is convenient to fix the limiting protrusion 8 and the engaging protrusion 10, so that the interface 3 will not be easily loosened after the angle is adjusted.

[0027] In the prior art, the LED lamp holder has a simple structure, which is usually not convenient for adjusting the angle of the LED lamp. The existing angle adjustment structure mostly uses a fixed bracket to assist in angle adjustment. Due to the limitation of the rotating shaft, it can usually only be rotated to the left or right during the angle adjustment process, and cannot be adjusted arbitrarily in all directions within a certain range, which is inconvenient to adjust. To solve this problem, the utility model adopts an integrated all-round adjustment structure. By rotating the interface 3, the rotating holes 601 at both ends of the interface 3 rotate and squeeze the engaging protrusions 10 at the same time. The engaging protrusions 10 squeeze the limiting protrusions 8. The angle of the interface 3 is adjusted according to actual needs, so that the adjacent limiting protrusions 8 and the engaging protrusions 10 are staggered. Under the action of the spring 7, the limiting protrusions 8 and the engaging protrusions 10 are tightly engaged to prevent them from loosening. The rotatable worm 13 drives the worm wheel 12 to rotate, thereby driving the rotating seat 5 to rotate, and then adjusting the angle of the LED lamp to achieve all-round adjustment. It is not limited by the rotating shaft, and the adjustment is convenient and simple, saving time and effort.

[0028] The working principle of the utility model is as follows: insert the plug 2 into the socket, and then fix the LED lamp at the top of the interface 3, rotate the interface 3 according to the required lighting direction, and at the same time, the rotating holes 601 at both ends of the interface 3 rotate, and the internal limiting protrusions 8 and the engaging protrusions 10 are squeezed, so that the limiting protrusions 8 squeeze the spring 7 internally, and after adjusting the angle of the interface 3 according to actual needs, the adjacent limiting protrusions 8 and the engaging protrusions 10 are staggered, and under the action of the spring 7, the limiting protrusions 8 and the engaging protrusions 10 are tightly engaged to prevent them from loosening, and the knob 14 is turned, the worm 13 is rotated to drive the worm wheel 12 to rotate, and the rotating seat 5 is driven to rotate, and the rotation angle of the LED lamp is adjusted again until the required angle is reached.

[0029] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An angle-adjustable LED lamp holder structure, comprising a lamp holder (1), wherein a plug (2) is provided on the side of the lamp holder (1), characterized in that: The top of the lamp holder (1) is rotatably connected to a rotating seat (5), and both ends of the rotating seat (5) are fixed with a rotating shaft (9). The surface of the rotating shaft (9) is rotatably connected to an interface (3), and the top of the interface (3) is provided with an internal thread. The surface of the rotating shaft (9) is fixed with an array of engaging protrusions (10), and the connection between the interface (3) and the rotating shaft (9) is set as a rotating hole (601). The inner wall of the rotating hole (601) is provided with an array of sliding grooves (602), and the inner wall of the sliding groove (602) is slidably connected with a limiting protrusion (8), and a spring (7) is fixed between the limiting protrusion (8) and the sliding groove (602). The bottom of the rotating seat (5) is fixed with a worm wheel (12), and the surface of the worm wheel (12) is meshed with a worm (13), and both ends of the worm (13) are connected to the bearing of the rotating seat (5).

2. The angle-adjustable LED lamp holder structure according to claim 1, characterized in that: A knob (14) is fixed to one end of the worm (13).

3. The angle-adjustable LED lamp holder structure according to claim 2, characterized in that: The surface of the knob (14) is provided with an array of anti-slip grooves.

4. The angle-adjustable LED lamp holder structure according to claim 1, characterized in that: The ends of the limiting protrusion (8) and the engaging protrusion (10) are both hemispherical.

5. The angle-adjustable LED lamp holder structure according to claim 1, characterized in that: The number of the limiting protrusions (8) and the engaging protrusions (10) is the same, and adjacent limiting protrusions (8) and engaging protrusions (10) are staggered.

6. The angle-adjustable LED lamp holder structure according to claim 1, characterized in that: A protective cover (4) is fixed on the surface of the interface (3).

7. The angle-adjustable LED lamp holder structure according to claim 1, characterized in that: The helix lead angle of the worm (13) is smaller than the equivalent friction angle between the meshing teeth of the worm (13) and the worm wheel (12).

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