Drawings
Fig. 1 is a schematic structural diagram of a lighting fixture according to an embodiment of the present application;
FIG. 2 is a top view of a lighting fixture disclosed in an embodiment of the present application;
FIG. 3 is a schematic view of a connection between a first shaft and a mounting base according to an embodiment of the present application;
FIG. 4 is a schematic view of a portion of a connection between a first shaft and a mounting base according to an embodiment of the present application;
FIG. 5 is a cross-sectional view of a lighting fixture disclosed in an embodiment of the present application;
FIG. 6 is a schematic view of a lighting fixture according to an embodiment of the present application at another viewing angle;
FIG. 7 is a cross-sectional view of a connection between a second shaft and a lamp body according to an embodiment of the present application;
fig. 8 is an exploded view of a backlight assembly according to an embodiment of the present application;
fig. 9 is a schematic structural view of a ring-shaped light guide plate according to an embodiment of the present application;
fig. 10 is a schematic structural view of the annular light guide plate according to the embodiment of the present application at another view angle.
Reference numerals illustrate:
100-a mounting base, 110-a first opening, 120-a second positioning hole,
200-Lamp body, 210-shell, 211-slot, 212-first opening, 213-second opening,
300-A first rotating shaft, 310-a third opening, 320-a fourth opening,
400-A rotary bearing, 410-a first rotary part, 420-a second rotary part,
510-A first locking piece, 520-a first fixing seat, 521-a first limiting part, 522-a boss, 530-a second fixing seat, 531-a second limiting part, 532-a third opening,
610-A second rotating shaft, 620-an adjusting piece, 630-a gasket, 640-a cylinder,
700-Backlight assembly, 710-annular circuit board, 711-first positioning hole, 720-lamp bead, 730-panel, 731-second opening, 740-annular light guide plate, 741-first positioning column, 742-second positioning column, 743-glue overflow groove,
810-A sleeve, 811-a sleeve, 812-a third limit part, 820-a second locking member,
900-A power supply device,
A-centerline.
Detailed Description
The technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are obtained by a person skilled in the art based on the embodiments of the present application, fall within the scope of protection of the present application.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
The lighting fixture provided by the embodiment of the application is described in detail below by means of specific embodiments and application scenes thereof with reference to the accompanying drawings.
Referring to fig. 1 to 10, the lighting fixture disclosed in the embodiment of the application includes a mounting base 100, a lamp body 200, a first rotating shaft 300 and a rotating bearing 400, wherein the mounting base 100 is used as a mounting base of the lamp body 200, the first rotating shaft 300 and the rotating bearing 400, alternatively, the mounting base 100 may be a ceiling box for being mounted on a top wall of a wall body, the lamp body 200 is connected with the mounting base 100 through the first rotating shaft 300, and the lamp body 200 can rotate around an axis of the first rotating shaft 300 relative to the mounting base 100, alternatively, the lamp body 200 may be a downlight, and the rotating bearing 400 is used for reducing friction force between the rotating bearing 400 and the mounting base 100 in a rotating process of the first rotating shaft 300.
The first end of the first shaft 300 is connected to the lamp body 200, alternatively, the first end of the first shaft 300 may be fixedly connected to the lamp body 200 or rotatably connected to the lamp body 200, as shown in fig. 5, the mounting base 100 is provided with a first opening 110 through which the second end of the first shaft 300 passes, the rotation bearing 400 is disposed in the mounting base 100, and the rotation bearing 400 is sleeved outside the first shaft 300. As shown in fig. 2 to 4, the rotary bearing 400 includes a first rotary part 410 and a second rotary part 420 rotatably connected, the first rotary part 410 is connected with the mounting base 100, the second rotary part 420 is connected with the second end of the first rotary shaft 300, and the lamp body 200, the first rotary shaft 300 and the second rotary part 420 are rotatable with respect to the mounting base 100 about the axis of the first rotary shaft 300. Alternatively, the first rotating portion 410 and the second rotating portion 420 may be sequentially disposed along a direction in which an axis of the first rotating shaft 300 is located, where the first rotating portion 410 may be fixedly connected to the mounting base 100 by a threaded fastener (such as a bolt), and the second rotating portion 420 may be directly connected to a second end of the first rotating shaft 300 by welding, or may be indirectly connected to other components.
In the embodiment of the application, the rotating bearing 400 is added to the lighting lamp, the first rotating portion 410 of the rotating bearing 400 is connected with the mounting base 100, the second rotating portion 420 of the rotating bearing 400 is connected with the first rotating shaft 300, i.e. the second end of the first rotating shaft 300 is connected with the mounting base 100 through the rotating bearing 400, and the second end of the first rotating shaft 300 can rotate relative to the mounting base 100 during the rotation of the lamp body 200 around the first rotating shaft 300 due to the relative rotation of the first rotating portion 410 and the second rotating portion 420, even if the second end of the first rotating shaft 300 needs to bear a blocking force to promote the damping feel, the blocking force finally passes through
The second rotating part 420 is applied to the first rotating part 410 to affect the relative rotation of the first rotating part 410 and the second rotating part 420 without affecting the rotation of the first rotating shaft 300, so that the second end of the first rotating shaft 300 is not affected by the blocking acting force, and the first rotating shaft 300 is driven by the lamp body 200 to rotate integrally with the lamp body 200.
So set up, first pivot 300 need not directly bear lamp body 200 simultaneously to its rotation driving force and hindrance effort, can follow lamp body 200 smoothly and rotate, is favorable to improving first pivot 300's antifatigue strength, prolongs first pivot 300's life.
In an alternative embodiment, the lighting device further includes a pressing member, where the first rotating portion 410, the second rotating portion 420, and the pressing member are sequentially disposed along the direction of the first rotating shaft 300, and the pressing member is fixedly connected to the first rotating shaft 300 in a non-detachable manner such as welding, and the pressing member can press the first rotating portion 410 and the second rotating portion 420. In another embodiment, the lighting fixture further includes a first locking member 510, the first rotating portion 410, the second rotating portion 420 and the first locking member 510 are sequentially disposed along the direction of the first rotating shaft 300, and the first locking member 510 is in threaded engagement with the second end of the first rotating shaft 300 to press the first rotating portion 410 and the second rotating portion 420. By adopting the embodiment, the damping force between the first rotating part 410 and the second rotating part 420 can be increased by pressing the first locking member 510 on the first rotating part 410 and the second rotating part 420, and the hand feeling of a user in the process of rotating the lamp body 200 is improved.
In an alternative embodiment, the lighting fixture further includes a power supply device 900 and an electrical connection wire, as shown in fig. 2, where the power supply device 900 is disposed in the mounting base 100, the first rotating shaft 300 is provided with a first wire passing hole in its own extending direction, the rotating bearing 400 is provided with a second wire passing hole along the direction in which the first rotating shaft 300 is located, the electrical connection wire penetrates through the first wire passing hole and the second wire passing hole, and a first end of the electrical connection wire is electrically connected with the power supply device 900, and a second end of the electrical connection wire is electrically connected with the lamp body 200. Thus, the lamp body 200 and the power supply device 900 are electrically connected by the electrical connection wire, so that the lamp body 200 emits light normally.
In an alternative embodiment, as shown in fig. 2-4, the lighting fixture further includes a first fixing base 520 and a second fixing base 530 disposed in the mounting base 100, the first fixing base 520 is connected to the mounting base 100, and the second fixing base 530 is connected to the second end of the first rotating shaft 300 and can rotate along with the first rotating shaft 300. Alternatively, the first fixing base 520 and the mounting base 100 may be fixedly connected by a structure such as a threaded fastener (e.g., a bolt), the second fixing base 530 penetrates through the second end of the first rotating shaft 300, and the second fixing base 530 may be fixedly connected with the second rotating portion 420 by a structure such as a threaded fastener (e.g., a bolt), and the first locking member 510 presses the second fixing base 530, thereby pressing the first rotating portion 410 and the second rotating portion 420. The first fixing base 520 is provided with a first limiting portion 521, the second fixing base 530 is provided with a second limiting portion 531, and the first limiting portion 521 and the second limiting portion 531 are in limiting fit in the rotation direction of the first rotating shaft 300. With the present embodiment, the first limiting portion 521 and the second limiting portion 531 are utilized to limit the rotation angle of the first rotating shaft 300 relative to the mounting base 100, when the first rotating shaft 300 is closer to the wall, the damage to the wall caused by the overlarge rotation amplitude of the first rotating shaft 300 is avoided, and when the first rotating shaft 300 is used for passing through the electrical connection wire, the problem that the electrical connection wire is blocked due to overlarge rotation angle and power transmission is disabled is avoided.
Alternatively, the first limiting portion 521 may be a limiting post, the second limiting portion 531 may be a limiting protrusion, the limiting protrusion may rotate relative to the limiting post, and the limiting protrusion is in limiting fit with the limiting post in a first rotation direction, and the limiting protrusion is in limiting fit with the limiting post in a second rotation direction, where the first rotation direction is opposite to the second rotation direction. Alternatively, the rotation angle of the first rotation shaft 300 with respect to the mounting base 100 may be 339 ° due to the limit engagement of the limit protrusion with the limit post.
Of course, in other embodiments, the lighting fixture may not be provided with the first limiting portion 521 and the second limiting portion 531, i.e. the rotation angle of the first fixing base 520 relative to the first mounting base 100 is 360 °.
In an alternative embodiment, as shown in fig. 4, the second end of the first rotating shaft 300 is provided with a concave surface, the second fixing base 530 is provided with a third opening 532 matched with the second end of the first rotating shaft 300, the user rotates the first rotating shaft 300 by rotating the first locking member 510, the first rotating shaft 300 rotates the second fixing base 530 by the matched structure of the third opening 532 and the concave surface, and then the second fixing base 530 rotates the second rotating portion 420, and at the same time, the first locking member 510 generates displacement in the direction of the axis of the first rotating shaft 300, so that the first locking member 510 presses the second fixing base 530, and the second fixing base 530 presses the second rotating portion 420 and the first rotating portion 410.
Optionally, the first fixing seat 520 is provided with at least two bosses 522, the first rotating part 410 is provided with grooves matched with the bosses 522, and the grooves are in one-to-one correspondence with the bosses 522, so that the positions of the first rotating part 410 relative to the first fixing seat 520 are positioned through the bosses 522, the corresponding communication between the first wire passing hole of the first rotating shaft 300 and the second wire passing hole of the rotating bearing 400 is ensured, and the accurate installation position of the rotating bearing 400 is ensured.
In an alternative embodiment, the lighting fixture further includes a second rotating shaft 610, the lamp body 200 includes a housing 210, and the housing 210 is connected to the first rotating shaft 300 through the second rotating shaft 610, so that the lamp body 200 can rotate around the second rotating shaft 610 relative to the first rotating shaft 300, and an axis of the second rotating shaft 610 intersects an axis of the first rotating shaft 300. Optionally, the axis of the second shaft 610 is perpendicular to the axis of the first shaft 300. The casing 210 may be provided with a cylindrical groove, the second rotating shaft 610 penetrates the first rotating shaft 300, and the second rotating shaft 610 extends into the cylindrical groove, and the second rotating shaft 610 may rotate in the cylindrical groove, so as to realize that the lamp body 200 is sleeved with the second rotating shaft 610 to rotate relative to the first rotating shaft 300.
In another embodiment, as shown in fig. 5-7, the first rotating shaft 300 abuts against the second rotating shaft 610, that is, the second rotating shaft 610 does not completely penetrate through the first rotating shaft 300, the lighting fixture further includes an adjusting member 620, the adjusting member 620 is connected with the housing 210, and the adjusting member 620 abuts against the second rotating shaft 610 to adjust the abutting force of the second rotating shaft 610 on the first rotating shaft 300. Thus, the greater the supporting force of the adjusting member 620 on the second rotating shaft 610, the greater the supporting force of the second rotating shaft 610 on the first rotating shaft 300, and then the greater the damping force in the process of rotating the lamp body 200 around the second rotating shaft 610 relative to the first rotating shaft 300, the better the damping feel in the rotating process is promoted. Alternatively, the adjustment member 620 may be an adjustment screw.
In an alternative embodiment, the housing 210 is provided with a slot 211 into which the first end of the first rotating shaft 300 extends, the housing 210 is provided with a first opening 212, the first rotating shaft 300 is provided with a third opening 310, the first opening 212, the third opening 310 and the slot 211 are sequentially communicated on the axis of the second rotating shaft 610, one end of the second rotating shaft 610 sequentially penetrates through the first opening 212 and the third opening 310, that is, a part of the second rotating shaft 610 extends into the first rotating shaft 300, the adjusting member 620 is located on the same side of the first rotating shaft 300 as the second rotating shaft 610, and the adjusting member 620 is located on the side of the second rotating shaft 610 facing away from the first rotating shaft 300, and the adjusting member 620 presses the second rotating shaft 610 so that the second rotating shaft 610 abuts against the first rotating shaft 300.
In another embodiment, the housing 210 is further provided with a second opening 213, the first shaft 300 is further provided with a fourth opening 320, the first opening 212, the third opening 310, the slot 211, the fourth opening 320 and the second opening 213 are sequentially communicated in the direction of the axis of the second shaft 610, and the first end of the adjusting member 620 sequentially penetrates through the second opening 213 and the fourth opening 320 and abuts against the second shaft 610, i.e. the adjusting member 620 is disposed on one side of the second shaft 610 facing the first shaft 300. With the present embodiment, the adjusting member 620 not only can adjust the supporting force of the second rotating shaft 610 on the first rotating shaft 300, but also provides a supporting force for the lamp body 200 to rotate around the second rotating shaft 610 relative to the first rotating shaft 300, that is, the adjusting member 620 and the second rotating shaft 610 together provide a rotation support, which is beneficial for the stable rotation of the lamp body 200 around the second rotating shaft 610 relative to the first rotating shaft 300.
Alternatively, as shown in fig. 7, a first portion of the second rotating shaft 610 protrudes into the inside of the first rotating shaft 300 through the first opening 212 and the third opening 310, a second portion of the second rotating shaft 610 is rotatably coupled with the housing 210, and the adjusting member 620 may include an adjusting screw, the first portion of the second rotating shaft 610 being provided with a screw hole, one end of the adjusting screw being protruded into the screw hole and being screw-coupled with the second rotating shaft 610. In this manner, the second rotating shaft 610 and the adjusting member 620 rotate with respect to the lamp body 200 about the axis of the second rotating shaft 610 following the first rotating shaft 300, and the abutment force of the second portion of the second rotating shaft 610 against the first rotating shaft 300 can be adjusted by changing the length of the adjusting screw extending into the threaded hole.
In an alternative embodiment, the lighting fixture may further include a spacer 630, one end of the adjusting screw sequentially penetrates through the spacer 630, the second opening 213 and the fourth opening 320, the nut of the adjusting screw abuts the spacer 630 against the outer surface of the housing 210, and a certain friction force is provided between the spacer 630 and the housing 210, so that the damping force during the rotation of the lamp body 200 around the second rotation axis 610 relative to the first rotation axis 300 is increased, which is beneficial to further improving the hand feeling during the rotation.
In an alternative embodiment, the adjusting member 620 may include an adjusting screw, the lighting device further includes a cylinder 640, the cylinder 640 is located inside the first rotating shaft 300, and the cylinder 640 is sleeved outside the adjusting member 620, and the cylinder 640 separates an electrical connection wire penetrating through the first rotating shaft 300 from the adjusting member 620, so as to avoid the electrical connection wire from directly contacting the adjusting screw to cause thread scratch of the electrical connection wire.
In an alternative embodiment, the lamp body 200 may be rotated about the second rotation axis 610 in all directions relative to the first rotation axis 300, i.e., the rotatable angle range of the lamp body 200 is 360 °. In another embodiment, referring to fig. 6, the housing 210 is in positive engagement with the first shaft 300 in a direction of rotation about the second shaft 610. When the lamp body 200 rotates around the axis of the second rotating shaft 610 to a preset position relative to the first rotating shaft 300, the housing 210 is in limited contact with the first rotating shaft 300. Alternatively, the rotation angle range of the lamp body 200 with respect to the first rotation shaft 300 is 94 °. With the present embodiment, the rotation range of the second rotating shaft 610 and the lamp body 200 relative to the first rotating shaft 300 is limited, so as to avoid the problem that the electric connection wire is broken due to the overlarge bending angle, and thus the electric transmission is impossible.
In the embodiment of the application, as shown in fig. 8, the lighting fixture further includes a backlight assembly 700, the backlight assembly 700 includes an annular circuit board 710 and a plurality of lamp beads 720, the annular circuit board 710 is disposed on the outer periphery of the mounting base 100, and the plurality of lamp beads 720 are disposed at intervals on a side of the annular circuit board 710 facing away from the lamp body 200. Optionally, the annular circuit board 710 is electrically connected to the power supply device 900 disposed in the mounting base 100, so that the annular circuit board 710 supplies power to each of the lamp beads 720 to achieve the lighting of the lamp beads 720. By adopting the embodiment, the plurality of lamp beads 720 emit light from one side of the annular circuit board 710 back to the lamp body 200, thereby realizing backlight, assisting the lamp body 200 to illuminate, and improving illumination effect and illumination atmosphere. Of course, in other embodiments, the lighting fixture may rely solely on the lamp body 200 for illumination, i.e., the lighting fixture may not be provided with the backlight assembly 700.
In an alternative embodiment, the annular circuit board 710 may be directly disposed on the outside of the mounting base 100, or as shown in fig. 8-10, the backlight assembly 700 further includes a panel 730 and an annular light guide plate 740, the panel 730 is connected to the mounting base 100, the panel 730 is provided with a second opening 731 for the first rotation shaft 300 to pass through, the annular light guide plate 740 is sleeved on the outside of the mounting base 100, and the annular light guide plate 740 is connected to the panel 730, so that the annular light guide plate 740 and the panel 730 together form a receiving space for receiving the annular circuit board 710 and the lamp beads 720. Specifically, the panel 730 is located on a side of the annular circuit board 710 facing the lamp body 200, the annular light guide plate 740 is located on a side of the annular circuit board 710 facing away from the lamp body 200, and an edge of the panel 730 is connected to an edge of the annular light guide plate 740. By adopting the embodiment, the annular circuit board 710 and the lamp beads 720 are surrounded and protected by the panel 730 and the annular light guide plate 740, the annular circuit board 710 and the lamp beads 720 are prevented from being exposed, and the light rays of the lamp beads 720 can be diffused by the annular light guide plate 740, so that uniform light emission is realized.
Alternatively, the annular circuit board 710 is disposed on the panel 730, and the panel 730 may be a heat dissipation structure, so that the annular circuit board 710 is dissipated through the panel 730. Alternatively, the panel 730 may be made of aluminum.
In an alternative embodiment, as shown in fig. 9, one of the annular light guide plate 740 and the annular circuit board 710 is provided with at least one first positioning hole 711, the other is provided with at least one first positioning column 741, the first positioning columns 741 are in one-to-one positioning fit with the first positioning holes 711, and/or, as shown in fig. 10, one of the annular light guide plate 740 and the mounting base 100 is provided with at least one second positioning hole 120, the other is provided with at least one second positioning column 742, and the second positioning column 742 is in one-to-one positioning fit with the second positioning hole 120. By adopting the embodiment, the relative positions of the annular light guide plate 740 and the annular circuit board 710 are limited by the positioning cooperation of the first positioning columns 741 and the first positioning holes 711, the annular light guide plate 740 and the annular circuit board 710 are conveniently connected, and meanwhile, the relative positions of the annular light guide plate 740 and the mounting base 100 are limited by the positioning cooperation of the second positioning columns 742 and the second positioning holes 120, the annular light guide plate 740 and the mounting base 100 are conveniently connected, and the relative fixation of the mounting base 100, the annular light guide plate 740 and the annular circuit board 710 is ensured so as to realize accurate connection.
Of course, in other embodiments, the annular light guide plate 740 and the annular circuit board 710 may not be in positioning engagement with each other through the first positioning hole 711 and the first positioning post 741, and may be directly connected by welding or the like, or the annular light guide plate 740 and the mounting base 100 may be in positioning engagement with each other through the second positioning hole 120 and the second positioning post 742, and may be directly connected by welding or the like.
In an alternative embodiment, the mounting base 100 and the faceplate 730 may be fixedly coupled directly to the first shaft 300 by welding or the like. In another embodiment, as shown in fig. 5, the lighting fixture further includes a sleeve 810 and a second locking member 820, the sleeve 810 includes a sleeve 811 and a third limiting portion 812 connected to each other, the sleeve 811 is sleeved outside the first rotating shaft 300, the panel 730 and the mounting base 100 are sleeved outside the sleeve 811, the third limiting portion 812 is in limiting engagement with the panel 730, and the second locking member 820 is in threaded engagement with the sleeve 811. Thus, through the sleeving part 810, the panel 730 and the mounting base 100 can be prevented from moving along the direction of the first rotating shaft 300 and can be matched with the second locking part 820, so that the panel 730 and the mounting base 100 are fixed between the third limiting part 812 and the second locking part 820, and the panel 730, the mounting base 100 and the first rotating shaft 300 are fixedly connected. In addition, the connecting area between the mounting base 100 and the first shaft 300 is increased by the sleeve 810 and the second locking member 820, and the connecting area between the panel 730 and the first shaft 300 is also increased, which is advantageous for improving the connection stability.
In an alternative embodiment, the power supply device 900 is located at the center of the mounting base 100, and the first rotating shaft 300 is offset from the center of the mounting base 100, that is, the first rotating shaft 300 is also offset from the center of the panel 730 and the annular light guide plate 740, so that when the mounting base 100 is connected to the panel 730 at the first rotating shaft 300, the panel 730 is easily tilted away from the first rotating shaft 300, and the connection between the panel 730 and the annular light guide plate 740 is not tight enough.
In another embodiment, as shown in fig. 9, the annular light guide plate 740 is provided with a glue overflow groove 743, the annular light guide plate 740 is connected to the panel 730 through a connection glue disposed in the glue overflow groove 743, referring to fig. 2, the mounting base 100 has a center line a perpendicular to the first rotation axis 300, the glue overflow groove 743 and the sheathing member 810 are sequentially disposed in a direction of the center line a, and the glue overflow groove 743 and the sheathing member 810 are disposed at both sides of the center of the mounting base 100. By adopting the embodiment, the annular light guide plate 740 and the panel 730 are further connected at the position far away from the first rotating shaft 300 through the connecting glue in the glue overflow groove 743, so that the condition that the panel 730 is not tightly connected with the annular light guide plate 740 due to tilting of the panel 730 is avoided, and the connection stability is improved. Alternatively, the mounting base 100 has a circular structure, and the center line a perpendicular to the first rotation axis 300 passes through the center of the mounting base 100, and the center of the mounting base 100 is the center of the mounting base 100.
The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.