Lighting equipment

Abstract

The invention discloses lighting equipment which comprises a suspension arm, a lamp body with a light source and a light shield which are connected in sequence. The light shield comprises a connecting frame and a light shield plate assembly, the connecting frame is assembled on the lamp body, and the light shield plate assembly is hinged to the peripheral face of the connecting frame. The light shielding plate assembly is composed of a plurality of first light shielding plates with the area unchanged and a plurality of second light shielding plates with the area adjustable, the first light shielding plates and the second light shielding plates can swing up and down relative to the connecting frame to be adjusted, the irradiation angle and the irradiation range can be adjusted, and the light emitting type can also be adjusted. Therefore, according to the illumination equipment provided by the invention, the lamp body can be driven to swing through the suspension arm to adjust the illumination angle, the illumination angle and the illumination range can be adjusted by swinging the first light shielding plate and the second light shielding plate on the light shielding cover, the surface area of the first light shielding plate is not changed, and the surface area of the second light shielding plate is adjustable; different light types can be adjusted, and the irradiation range and the irradiation angle can be flexibly adjusted.

Description

Technical Field

[0001] The present invention relates to the technical field of lamps, and in particular to a lighting device. Background Art

[0002] In the field of decoration, wall washers, spotlights and downlights are often used for lighting to create a suitable lighting atmosphere.

[0003] In the prior art, wall washers, spotlights, downlights, etc. are all hung at designated locations by cantilevers. The lower end of the cantilever is hinged to the lamp body, so that the lamp body can adjust the irradiation direction. Generally, a trumpet-shaped lampshade is set at the light-emitting end of the lamp body to restrict the illumination range.

[0004] In the prior art, the fixed lampshade restricts the illumination range and is not adjustable. The area is adjusted entirely by the swing of the lamp body. The method is single, the operation remains unchanged, and the light type cannot be adjusted. The dimming method needs to be improved. Summary of the invention

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and to provide a lighting device, wherein a suspension arm is arranged above the lamp body and a light shield is arranged at the bottom of the lamp body. The illumination angle can be adjusted by swinging the lamp body by the suspension arm, and the illumination angle and illumination range can be adjusted by swinging the first light shielding plate and the second light shielding plate on the light shield. The surface area of ​​the first light shielding plate remains unchanged, and the surface area of ​​the second light shielding plate is adjustable. Different light types can be adjusted, and the illumination range and illumination angle can be flexibly adjusted.

[0006] The technical solution of the present invention provides a lighting device, comprising a suspension arm, a lamp body having a light source and a light shield connected in sequence;

[0007] The suspension arm comprises a suspension arm body and a swing connection member pivotally connected to the suspension arm body, wherein the swing connection member is connected to the top of the lamp body;

[0008] The light shield comprises a connecting frame sleeved on the lamp body and a light shielding plate assembly arranged on the outer peripheral surface of the connecting frame;

[0009] The shading plate assembly includes a plurality of first shading plates with constant areas and a plurality of second shading plates with adjustable areas;

[0010] The first shading plate and the second shading plate are arranged in sequence along the outer circumference of the connecting frame. The first shading plate and the second shading plate are connected to the connecting frame through a hinge mechanism respectively. The first shading plate and the second shading plate can be swung up and down relative to the connecting frame respectively.

[0011] In one of the optional technical solutions, the second shading plate includes a main plate connected to the hinge mechanism and a swing plate pivotally connected to the main plate;

[0012] The front and back sides of the main board are respectively equipped with a swing plate, and the two swing plates are arranged opposite to each other;

[0013] When the two swing plates are in a retracted state, the two swing plates are respectively stacked on the front and back sides of the main board;

[0014] When the two swing plates are in the unfolded state, the two swing plates extend out from the two side edges of the main plate respectively.

[0015] In one of the optional technical solutions, the first light shielding plate and the main board are respectively in the shape of an isosceles trapezoid;

[0016] The short side of the first shading plate is connected to the hinge mechanism, and the long side of the main board is connected to the hinge mechanism;

[0017] The pivot ends of the two swing plates are respectively hinged at two top corners of the main plate.

[0018] In one of the optional technical solutions, the swing plate includes a strip plate and a fan-shaped plate connected to the strip plate, the outer edge of the strip plate is flush with the outer edge of the fan-shaped plate, and one end of the strip plate away from the fan-shaped plate is hinged at the top corner of the main board.

[0019] In one of the optional technical solutions, the suspension arm body has a first wiring channel, the swing connector includes a second wiring channel, and the second wiring channel is connected to the first wiring channel;

[0020] The lower end of the suspension arm body is connected to a first connection sleeve communicating with the first wiring channel, and the swing connection piece is provided with a second connection sleeve communicating with the second wiring channel;

[0021] The second connecting sleeve is connected to the first connecting sleeve via a pivot shaft, and a pre-tightening member is provided on the pivot shaft.

[0022] In one of the optional technical solutions, a plug sleeve is provided at the lower end of the swing connector, the heat sink in the lamp body has a plug hole, and the plug sleeve is fastened in the plug hole.

[0023] In one of the optional technical solutions, a light diffuser is provided in the lamp body, and the light diffuser is located below the light source;

[0024] The light emitting surface of the light scattering device is provided with a plurality of corrugated light scattering stripes, any two adjacent light scattering stripes are arranged at intervals from each other, and the side surfaces and / or bottom surfaces of the light scattering stripes are corrugated;

[0025] The scattered light stripes are located in the light outlet of the lamp body.

[0026] In one of the optional technical solutions, along the up and down direction, one side surface of the scattered light stripe is a vertical surface, and the other side surface of the scattered light stripe is a curved surface.

[0027] In one of the optional technical solutions, the light scattering device includes a light guide plate, and the light scattering stripes are arranged on the bottom surface of the light guide plate; or,

[0028] The light-scattering device comprises a conical lens, and the radius of the conical lens gradually increases in a direction from top to bottom;

[0029] The top surface of the conical lens is provided with a light entrance groove, the groove wall surface of the light entrance groove is a curved surface, and the scattered light stripes are provided on the bottom surface of the conical lens.

[0030] In one of the optional technical solutions, a conical incident groove is provided at the center of the groove bottom of the light incident groove, and the radius of the conical incident groove gradually decreases in the direction from top to bottom.

[0031] The above technical solution has the following beneficial effects:

[0032] The lighting device provided by the present invention includes a suspension arm, a lamp body with a light source, and a light shield. The suspension arm is composed of a suspension arm main body and a swinging connection member, the upper end of the swinging connection member is hinged to the suspension arm main body, the lower end of the swinging connection member is connected to the lamp body, the rotation position of the swinging connection member avoids the lamp body, the swing is no longer restricted, the swingable range is large, and the swing angle of the lamp body is driven to be large; the light shield includes a connecting frame and a light shielding plate assembly, the connecting frame is assembled on the lamp body, and the light shielding plate assembly is hinged on the outer peripheral surface of the connecting frame. The light shielding plate assembly is composed of a plurality of first light shielding plates with a constant area and a plurality of second light shielding plates with an adjustable area. The first light shielding plate and the second light shielding plate can be swung up and down relative to the connecting frame to adjust the irradiation angle and irradiation range, and can also adjust the light type.

[0033] Therefore, the lighting equipment provided by the present invention can adjust the illumination angle by swinging the lamp body through the suspension arm, and can also adjust the illumination angle and illumination range by swinging the first light shielding plate and the second light shielding plate on the light shield. The surface area of ​​the first light shielding plate remains unchanged, and the surface area of ​​the second light shielding plate is adjustable. Different light types can be adjusted, and the illumination range and illumination angle can also be flexibly adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The disclosure of the present invention will become more easily understood with reference to the accompanying drawings. It should be understood that these drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the drawings:

[0035] Figure 1 A three-dimensional diagram of a lighting device provided by a first embodiment of the present invention;

[0036] Figure 2 An exploded view of a lighting device provided in accordance with a first embodiment of the present invention;

[0037] Figure 3 is a schematic diagram of a sunshade assembly of the sunshade in an initial state;

[0038] Figure 4 This is an exploded view of the second sunshade;

[0039] Figure 5 A schematic diagram of the first shading plate and the second shading plate when they are swung down to block light;

[0040] Figure 6 A schematic diagram of two swing plates of the second light shielding plate swinging out from the side of the main plate;

[0041] Figure 7 A cross-sectional view of a suspension arm and a lamp body of a structure;

[0042] Figure 8 It is a stereogram of a conical lens at one viewing angle;

[0043] Fig. 9 is a stereogram of a conical lens at another viewing angle;

[0044] Fig.10 is a cross-sectional view of a conical lens, wherein the cross-sectional surface is along the extension direction of the astigmatism fringes;

[0045] Fig.11 is a cross-sectional view of a conical lens, wherein the cross-sectional plane is perpendicular to the extension direction of the astigmatism fringes;

[0046] Fig.12 A cross-sectional view of a suspension arm and a lamp body of a structure;

[0047] Fig.13 is a three-dimensional image of the light guide plate at one viewing angle;

[0048] Fig.14 is a three-dimensional image of the light guide plate at another viewing angle;

[0049] Fig.15 is a cross-sectional view of the light guide plate, wherein the cross-sectional plane is perpendicular to the extension direction of the scattered light fringes;

[0050] Fig.16It is a schematic diagram of the scattered light stripes in the light outlet of the lamp body;

[0051] Fig.17 is a cross-sectional view of the suspension arm;

[0052] Fig.18 A perspective view of a lighting device provided by a second embodiment of the present invention;

[0053] Fig.19 A three-dimensional diagram of a lighting device provided in a third embodiment of the present invention. DETAILED DESCRIPTION

[0054] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. The same components are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0055] like Figure 1-6 and Figure 18-19 As shown, an embodiment of the present invention provides a lighting device, comprising a suspension arm 1, a lamp body 2 having a light source 22, and a light shield 3 which are connected in sequence.

[0056] The suspension arm 1 comprises a suspension arm body 11 and a swing connection member 12 pivotally connected to the suspension arm body 11 , and the swing connection member 12 is connected to the top of the lamp body 2 .

[0057] The light shield 3 comprises a connecting frame 31 sleeved on the lamp body 2 and a light shielding plate assembly 32 arranged on the outer peripheral surface of the connecting frame 31 .

[0058] The shading plate assembly 32 includes a plurality of first shading plates 321 with constant areas and a plurality of second shading plates 322 with adjustable areas.

[0059] The first shading plate 321 and the second shading plate 322 are arranged in sequence along the outer peripheral surface of the connecting frame 31, and the first shading plate 321 and the second shading plate 322 are connected to the connecting frame 31 through a hinge mechanism 33 respectively. The first shading plate 321 and the second shading plate 322 can be swung up and down relative to the connecting frame 31 respectively.

[0060] The lighting device provided by the present invention comprises a suspension arm 1 , a lamp body 2 and a light shield 3 .

[0061] The upper end of the suspension arm 1 is connected to a mounting structure, and the mounting structure may be a guide rail seat 4, a ceiling seat 5, a magnetic guide rail seat 6, or the like.

[0062] The suspension arm 1 is composed of a suspension arm body 11 and a swing connection member 12. The upper end of the swing connection member 12 is hinged to the suspension arm body 11, and the lower end of the swing connection member 12 is connected to the lamp body 2. The rotation position of the swing connection member 12 avoids the lamp body 2, and the swing is no longer limited. The swing range is large, and the swing angle of the lamp body 2 is driven to be large. Specifically, a bayonet 21 can be provided on the top of the lamp body 2, and a card plate can be provided on the swing connection member 12, and the card plate is clamped in the buckle 21.

[0063] The sunshade 3 includes a connecting frame 31 and a sunshade assembly 32 . The connecting frame 31 is assembled on the lamp body 2 , and the sunshade assembly 32 is hinged on the outer peripheral surface of the connecting frame 31 .

[0064] The shading plate assembly 32 is composed of a plurality of first shading plates 321 of constant area and a plurality of second shading plates 322 of adjustable area. The first shading plates 321 and the second shading plates 322 can be swung up and down relative to the connecting frame 31 to adjust the irradiation angle and irradiation range, and also to adjust the light type.

[0065] The area of ​​the first light shielding plate 321 remains unchanged, that is, the first light shielding plate 321 adopts an integrated structure, and its surface area remains unchanged. When the first light shielding plate 321 is adjusted to a certain angle, the light blocking area of ​​the first light shielding plate 321 is also determined. The area of ​​the second light shielding plate 322 is adjustable, so that the light blocking area can be adjusted as needed. The second light shielding plate 322 adopts a split structure, and the two adjacent plates on the left and right can be retracted or extended, so that the light blocking area can be adjusted.

[0066] The first light shielding plate 321 and the second light shielding plate 322 are respectively installed on the outside or periphery of the connecting frame 31 through the hinge mechanism 33, and are distributed along the circumference of the connecting frame 31. There is a second light shielding plate 322 between two adjacent first light shielding plates 321, and there is a first light shielding plate 321 between two adjacent second light shielding plates 322.

[0067] The shapes of the first shading plate 321 and the second shading plate 322 can be selected as needed, for example, a square plate, a trapezoidal plate, a fan-shaped plate, etc. In the circumferential direction of the connecting frame 31, the shape of the shading plate 2 is adapted to the outline of the connecting frame 31, that is, if the connecting frame 31 is circular, the shading plate 2 is correspondingly in an arc shape; if the connecting frame 31 is square, the shading plate 2 is correspondingly in a straight plate shape. The shape of the connecting frame 31 is adapted to the shape outline of the lamp body 2.

[0068] Since the first shading plate 321 and the second shading plate 322 are respectively connected to the connection frame 31 through the hinge mechanism 33, the first shading plate 321 and the second shading plate 322 can be swung up and down relative to the connection frame 31. The hinge mechanism 33 can be a pivot shaft, a hinge, etc., and the hinge mechanism 33 is equipped with a damping member, such as a damping spring, a friction plate, etc., for positioning the first shading plate 321 and the second shading plate 322, and positioning the adjusted first shading plate 321 and the second shading plate 322 at the designated position.

[0069] Since each of the first light shielding plates 321 and the second light shielding plates 322 can be swung up and down relative to the connection frame 31, different light patterns can be adjusted. For example, multiple first light shielding plates 321 and second light shielding plates 322 are swung toward the center line of the light emitting direction at the same time, thereby reducing the light pattern and achieving a focusing effect. For another example, multiple first light shielding plates 321 and second light shielding plates 322 are swung toward the periphery of the light emitting direction at the same time, thereby increasing the light pattern and achieving a scattered light effect, thereby increasing the light emitting area. For another example, some of the multiple first light shading plates 321 and / or second light shading plates 322 swing toward the center line side of the light emitting direction at the same time, and the remaining first light shading plates 321 and / or second light shading plates 322 remain in place or swing with an amplitude smaller than that of the aforementioned first light shading plates 321 and / or second light shading plates 322, then the light pattern will be restricted to a certain shape, such as a strip light spot, a polygonal light spot, an elliptical light spot, etc.

[0070] If the light emitting direction is defined as downward, the first light shielding plate 321 and the second light shielding plate 322 can be swung upward to be perpendicular to the wall surface of the connecting frame 31 and arranged roughly horizontally. At this time, the first light shielding plate 321 and the second light shielding plate 322 almost completely block light; the angle at which the first light shielding plate 321 and the second light shielding plate 322 swing downward from the horizontal position can be selected between 0-90°, and multiple first light shielding plates 321 and the second light shielding plates 322 can form a trumpet-shaped structure with a gradually larger opening, which plays a role in diffusing light. If the light shielding plate 2 is installed at the lower end of the connecting frame 31, the angle at which the first light shielding plate 321 and the second light shielding plate 322 swing downward from the horizontal position can reach as much as 135°, and it can swing toward the midline side of the light emitting direction. Multiple first light shielding plates 321 and the second light shielding plates 322 can form a funnel-shaped structure with a gradually smaller opening, which plays a role in focusing light.

[0071] After adjusting the first light shielding plate 321 to a certain angle, adjust the second light shielding plate 322 to the desired angle. If the gap between the first light shielding plate 321 and the second light shielding plate 322 is too large, the second light shielding plate 322 can be adjusted to extend or unfold the two adjacent plates on the left and right, thereby reducing the gap between the first light shielding plate 321 and the second light shielding plate 322, or completely covering the gap between the first light shielding plate 321 and the second light shielding plate 322.

[0072] Therefore, the lighting device provided by the present invention can adjust the illumination angle by driving the lamp body 2 to swing through the suspension arm 1, and can also adjust the illumination angle and illumination range by swinging the first light shielding plate 321 and the second light shielding plate 322 on the light shielding cover 3. The surface area of ​​the first light shielding plate 321 remains unchanged, and the surface area of ​​the second light shielding plate 322 is adjustable. Different light types can be adjusted, and the illumination range and illumination angle can also be flexibly adjusted.

[0073] In one embodiment, if Figure 3-6 As shown, the second shading plate 322 includes a main plate 3221 connected to the hinge mechanism 33 and a swing plate 3222 pivotally connected to the main plate 3221 .

[0074] A swing plate 3222 is respectively mounted on the front and back sides of the main board 3221, and the two swing plates 3222 are arranged opposite to each other.

[0075] When the two swing plates 3222 are in the retracted state, the two swing plates 3222 are stacked on the front and back sides of the main board 3221 respectively.

[0076] When the two swing plates 3222 are in the unfolded state, the two swing plates 3222 extend from the two side edges of the main plate 3221 respectively.

[0077] In this embodiment, the second light shielding plate 322 includes a main board 3221 and a swinging plate 3222. The main board 3221 is connected to the hinge mechanism 33, and the swinging plate 3222 is connected to the main board 3221 through a pivot shaft, so that the swinging plate 3222 can swing relative to the main board 3221 to achieve the retracting and extending function. Specifically, the end of the swinging plate 3222 facing the hinge mechanism 33 is connected to the main board 3221 through a pivot shaft, and the swinging plate 3222 can swing out or swing back from one side of the main board 3221.

[0078] Each set of second shading plates 322 is configured with a main board 3221 and two swinging plates 3222. In order to avoid interference between the two swinging plates 3222, the two swinging plates 3222 are arranged on the front and back sides of the main board 3221. The two swinging plates 3222 can be swung out or swung back from the left and right sides of the main board 3221 to adjust the gap on both sides.

[0079] Preferably, the two swing plates 3222 are arranged symmetrically, and the two swing plates 3222 can swing in the same range and manner, which is conducive to unified configuration.

[0080] The front side of the mainboard 3221 referred to here refers to the side of the mainboard 3221 facing or close to the light output path, and the reverse side of the mainboard 3221 referred to here refers to the side of the mainboard 3221 facing away from or away from the light output path. Of course, the reverse side can also be called the back side.

[0081] When the two swing plates 3222 are in the retracted state, the two swing plates 3222 are stacked on the front and back sides of the main board 3221 , and the light shielding area at this time is determined by the area of ​​the main board 3221 .

[0082] When the two swing plates 3222 are in the unfolded state, the swing plates 3222 extend from the sides of the main board 3221 , and the light shielding area at this time is determined by the area of ​​the main board 3221 and the extended area of ​​the swing plates 3222 .

[0083] According to the needs, the user can operate one swing plate 3222 to expand it separately, or the two swing plates 3222 can be expanded to different degrees to adjust different light patterns.

[0084] In one embodiment, if Figure 3 As shown, the connection frame 31 is provided with a tightening mechanism for tightening the lamp body 2. The tightening mechanism includes a handle 35 and a top block 34, and the top block 34 is arranged on the inner side of the connection frame 31. An internal threaded hole is provided on the connection frame 31, and the handle 35 is connected with a threaded rod, which passes through the internal threaded hole and is pivotally connected to the top block 34. The top block 34 can be pushed out or pulled back by rotating the handle 35. The end of the threaded rod is connected to the top block 34 through a bearing, and when the threaded rod rotates, the top block 34 only moves in translation but does not rotate.

[0085] In one embodiment, if Figure 3-6 As shown, the first light shielding plate 321 and the main board 3221 are respectively in the shape of isosceles trapezoids.

[0086] The short side of the first light shielding plate 321 is connected to the hinge mechanism 33 , and the long side of the main plate 3221 is connected to the hinge mechanism 33 .

[0087] The pivot ends 3222a of the two swing plates 3222 are hinged to the two top corners 3221a of the main plate 3221 respectively.

[0088] In this embodiment, the first light shielding plate 321 is in the shape of an isosceles trapezoid, and the short side of the first light shielding plate 321 is connected to the hinge mechanism 33. When the first light shielding plate 321 is lowered, more area can be used to block light.

[0089] The main board 3221 is also in the shape of an isosceles trapezoid. The long side of the main board 3221 is connected to the hinge mechanism 33, and after the main board 3221 swings down, it is wide at the top and narrow at the bottom, so as to avoid the adjacent first shading plate 321.

[0090] One end of the swing plate 3222 facing the long side of the main board 3221 is a pivot end 3222a, and the pivot end 3222a is hinged at the top corner 3221a of the main board 3221. The two pivot ends 3222a of the two swing plates 3222 are respectively installed at the two top corners 3221a of the main board 3221. When the swing plate 3222 swings outward, the part of the swing plate 3222 close to the short side of the main board 3221 swings out more, and the two swing plates 3222 and the main board 3221 form a trapezoidal structure with a narrow top and a wide bottom, so as to fill the trapezoidal space with a narrow top and a wide bottom formed after the two first shading plates 321 on both sides swing down, so as to play a better shading adjustment role.

[0091] In one embodiment, if Figure 4 As shown, the swing plate 3222 includes a strip plate 3222b and a fan-shaped plate 3222c connected to the strip plate 3222b, the outer edge of the strip plate 3222b is flush with the outer edge of the fan-shaped plate 3222c, and one end of the strip plate 3222b away from the fan-shaped plate 3222c is hinged at the top corner 3221a of the main board 3221.

[0092] In this embodiment, the swing plate 3222 is composed of a strip plate 3222b and a fan plate 3222c. Preferably, the fan plate 3222c and the strip plate 3222b are integrally arranged. The strip plate 3222b is narrower than the fan plate 3222c, and the outer edges of the two are flush, so that the fan plate 3222c protrudes toward the inner side of the strip plate 3222b, thereby forming a recess at the connection between the fan plate 3222c and the strip plate 3222b for avoiding the hinge mechanism 33. The end of the strip plate 3222b away from the fan plate 3222c is a hinge end 3222a, which extends toward the long side of the main board 3221 and is connected to the area of ​​the top corner 3221a of the main board 3221 through a pivot shaft.

[0093] With such arrangement, when the swing plate 3222 is folded, the outer edges of the strip plate 3222b and the fan plate 3222c can be flush with the side edges of the main board 3221, or will not protrude from the side edges of the main board 3221; since the fan plate 3222c protrudes toward the inner side of the strip plate 3222b, when the swing plate 3222 is swung out, the fan plate 3222c can remain overlapped with the main board 3221 to a large extent and will not separate quickly. At the same time, the two swing plates 3222 and the main board 3221 form a trapezoidal structure that is narrow at the top and wide at the bottom, so as to fill the trapezoidal space that is narrow at the top and wide at the bottom formed after the two first shading plates 321 on both sides are swung down, thereby achieving a better shading adjustment effect.

[0094] In one embodiment, if Figure 7 , Fig.12 and Fig.17 As shown, the suspension arm body 11 has a first wiring channel 111 , and the swing connection member 12 includes a second wiring channel 121 , and the second wiring channel 121 is connected to the first wiring channel 111 .

[0095] The lower end of the suspension arm body 11 is connected to a first connection sleeve 112 communicating with the first wiring channel 111 , and the swing connector 12 is provided with a second connection sleeve 122 communicating with the second wiring channel 121 .

[0096] The second connecting sleeve 122 is connected to the first connecting sleeve 112 via a pivot shaft 13 , and a preload member 14 is provided on the pivot shaft 13 .

[0097] In this embodiment, the second wiring channel 121 and the first wiring channel 111 can be used for wiring.

[0098] The lower end of the suspension arm body 11 is connected with a first connection sleeve 112, and the first connection sleeve 112 is preferably provided integrally with the suspension arm body 11. The first connection sleeve 112 is located below the first wiring channel 111 and communicates with the first wiring channel 111.

[0099] A second connection sleeve 122 is provided at the top of the swing connector 12, and the second connection sleeve 122 is in communication with the second wiring channel 121. Preferably, the second connection sleeve 122 is integrally provided with the swing connector 12. The inner opening of the second connection sleeve 122 faces the first connection sleeve 112, and the inner opening of the first connection sleeve 112 faces the second connection sleeve 122. The inner opening referred to here is an opening facing the joint between the first connection sleeve 112 and the second connection sleeve 122.

[0100] The second connecting sleeve 122 is connected to the first connecting sleeve 112 via a pivot shaft 13 , and the second connecting sleeve 122 can rotate relative to the first connecting sleeve 112 .

[0101] The pivot shaft 13 may be connected between the end plate of the second connecting sleeve 122 and the end plate of the first connecting sleeve 112, or may be connected between the inner bracket of the second connecting sleeve 122 and the inner bracket of the first connecting sleeve 112. The preload member 14 may be selectively disposed between the pivot shaft 13 and the second connecting sleeve 122, or selectively disposed between the pivot shaft 13 and the first connecting sleeve 112, or selectively disposed between the pivot shaft 13 and the second connecting sleeve 122 and between the pivot shaft 13 and the first connecting sleeve 112 at the same time.

[0102] The location of the preload member 14 is determined by the design of the pivot shaft 13 and the connection between the second connecting sleeve 122 and the pivot shaft 13. The preload member 14 can be an elastic member, such as a spring, an elastic sheet, a disc spring, etc., which plays a role in positioning the swing connector 12.

[0103] In one embodiment, if Fig.12 As shown, a plug sleeve 123 is provided at the lower end of the swing connector 12, and the heat sink 24 in the lamp body 2 has a plug hole 241. The plug sleeve 123 is fastened in the plug hole 241. The plug sleeve 123 and the hole wall of the plug hole 241 have an interference fit. Wiring can be routed into the plug hole 241 through the plug sleeve 123 to connect with the power supply 23 below. The structural strength of the heat sink 24 is also used to withstand the tension of the suspension, thereby reducing the tension load of the shell of the lamp body 2 and helping to thin the shell.

[0104] In one embodiment, if Figure 7-15 As shown, a light diffuser 23 is provided in the lamp body 2 , and the light diffuser 23 is located below the light source 22 .

[0105] The light emitting surface of the light scattering device 23 is provided with a plurality of corrugated light scattering stripes 233 , any two adjacent light scattering stripes 233 are arranged at intervals from each other, and the side surfaces and / or bottom surfaces of the light scattering stripes 233 are corrugated.

[0106] The scattered light stripes 233 are located in the light outlet 20 of the lamp body 2 .

[0107] In this embodiment, in order to improve the light diffusion effect, a light diffusion device 23 is disposed in the lamp body 2. The light diffusion device 23 can also be called a light diffusion lens, a light diffusion plate, etc.

[0108] The side of the light diffuser 23 facing the light source is called the light incident side, and the side of the light diffuser 23 emitting light is called the light emitting side. The light emitting side is not necessarily an independent surface, but is only used to clearly indicate the light path of the light diffuser 23.

[0109] A plurality of scattered light stripes 233 are arranged at intervals on the light emitting surface. The scattered light stripes 233 are corrugated, that is, the scattered light stripes 233 are bent and extended, and are roughly corrugated. The scattered light stripes 233 are light-transmissive and are made of the same material as the scattered light device 23. The side surface of the scattered light stripes 233 is corrugated or the bottom surface of the scattered light stripes 233 is corrugated. Preferably, both the side surface and the bottom surface of the scattered light stripes 233 are corrugated. After the light passes through a scattered light stripe 233, some of the light is directly emitted from the bottom surface of the scattered light stripe 233, and some of the light is emitted from the side surface of the scattered light stripe 233. Since the scattered light stripe 233 is corrugated, the light emitted from the side surface will enter the adjacent scattered light stripe 233 and be diffusely reflected again. Moreover, since the side surface and / or bottom surface of the scattered light stripe 233 is corrugated, the light emitted from the side surface and / or bottom surface will be emitted in different directions, thereby increasing the path of diffuse reflection of the outgoing light, thereby improving the scattered light effect of the outgoing light.

[0110] The scattered light stripes 233 are located in the light outlet 20 of the lamp body 2 , and the light is directly emitted after being diffusely reflected by the scattered light stripes 233 .

[0111] In one embodiment, if Fig.11 and Fig.15 As shown, along the up and down direction, one side surface of the scattered light stripe 233 is a vertical surface 2331, and the other side surface of the scattered light stripe 233 is a curved surface 2332. After the light propagates through the vertical surface 2331 and the curved surface 2332, it will be guided to be diffusely reflected.

[0112] The vertical surface 2331 and the curved surface 2332 referred to here are when viewed along the up-down direction, but in fact the vertical surface 2331 and the curved surface 2332 are curved surfaces in the extending direction of the scattered light fringes 233 .

[0113] In one embodiment, if Figure 7-15 As shown, the light scattering device 23 includes a light guide plate 232, and the light scattering stripes 233 are arranged on the bottom surface of the light guide plate 232, or the light scattering device 23 includes a conical lens 231, and the radius of the conical lens 231 gradually increases in the direction from top to bottom.

[0114] A light incident groove 234 is disposed on the top surface of the conical lens 231 . The groove wall surface of the light incident groove 234 is a curved surface. The scattered light stripes 233 are disposed on the bottom surface of the conical lens 231 .

[0115] In this embodiment, the light scattering device 23 may adopt a flat light guide plate 232 or a conical lens 231 to meet different installation requirements.

[0116] If the light scattering device 23 is a flat light guide plate 232, the installation is as follows: Fig.12As shown, the light guide plate 232 is directly installed near the light outlet 20 of the lamp body 2 , the light source 22 is close to the light outlet 20 of the lamp body 2 , and the scattered light stripes 233 extend into the light outlet 20 .

[0117] If the light diffusing device 23 is a conical lens 231, the installation is as follows: Figure 7 As shown, the conical lens 231 is installed in the lamp body 2 , the light source 22 is close to the top plate of the lamp body 2 , the conical lens 231 extends toward the light outlet 20 of the lamp body 2 , and the scattered light stripes 233 extend into the light outlet 20 .

[0118] The light source 22 is aimed at the light incident groove 234, and the light is emitted to the light incident groove 234. Part of the light is emitted to the bottom surface of the light incident groove 234, and part of the light is emitted to the groove wall surface of the light incident groove 234. The groove wall surface is a curved surface, which will guide this part of the light to produce diffuse reflection, which is beneficial to improve the astigmatism effect.

[0119] In one embodiment, if Figure 10-11 As shown, a conical incident groove 235 is provided at the center of the bottom of the light incident groove 234, and the radius of the conical incident groove 235 gradually decreases from top to bottom. A part of the light incident to the bottom of the light incident groove 234 will be incident to the conical incident groove 235, and under the effect of the conical surface of the conical incident groove 235, this part of the light will be diffusely reflected, which is beneficial to improve the astigmatism effect.

[0120] In one embodiment, the scattering stripes 233 and the scattering device 23 are integrally arranged, with high structural strength and a seamless connection between the two, which facilitates the transmission of light from the scattering device 23 to the scattering stripes 233 .

[0121] In one embodiment, the light scattering stripes 233 protrude from the light emitting surface of the light scattering device 23 so that the light scattering stripes 233 extend into the light outlet 20 , and the light is directly emitted after being diffusely reflected by the light scattering stripes 233 .

[0122] As needed, the above technical solutions can be combined to achieve the best technical effect.

[0123] The above are only the principles and preferred embodiments of the present invention. It should be noted that, for those skilled in the art, several other modifications can be made based on the principles of the present invention, which should also be considered as the protection scope of the present invention.

Claims

1. A lighting device, characterized in that: It includes a suspension arm, a lamp body with a light source and a light shield which are connected in sequence; The suspension arm comprises a suspension arm body and a swing connection member pivotally connected to the suspension arm body, wherein the swing connection member is connected to the top of the lamp body; The light shield comprises a connecting frame sleeved on the lamp body and a light shielding plate assembly arranged on the outer peripheral surface of the connecting frame; The shading plate assembly includes a plurality of first shading plates with constant areas and a plurality of second shading plates with adjustable areas; The first shading plate and the second shading plate are arranged in sequence along the outer circumference of the connecting frame. The first shading plate and the second shading plate are connected to the connecting frame through a hinge mechanism, and the first shading plate and the second shading plate can be swung up and down relative to the connecting frame.

2. The lighting device according to claim 1, characterized in that The second shading plate comprises a main plate connected to the hinge mechanism and a swing plate pivotally connected to the main plate; The front and back sides of the main board are respectively equipped with a swing plate, and the two swing plates are arranged opposite to each other; When the two swing plates are in a retracted state, the two swing plates are respectively stacked on the front and back sides of the main board; When the two swing plates are in the unfolded state, the two swing plates extend out from the two side edges of the main plate respectively.

3. The lighting device according to claim 2, characterized in that The first light shielding plate and the main board are respectively in the shape of isosceles trapezoids; The short side of the first shading plate is connected to the hinge mechanism, and the long side of the main board is connected to the hinge mechanism; The pivot ends of the two swing plates are respectively hinged at two top corners of the main plate.

4. The lighting device according to claim 3, characterized in that: The swing plate comprises a strip plate and a fan plate connected to the strip plate, the outer edge of the strip plate is flush with the outer edge of the fan plate, and one end of the strip plate away from the fan plate is hinged at the top corner of the main plate.

5. The lighting device according to any one of claims 1 to 4, characterized in that: The suspension arm body has a first wiring channel, the swing connector includes a second wiring channel, and the second wiring channel is connected to the first wiring channel; The lower end of the suspension arm body is connected to a first connection sleeve communicating with the first wiring channel, and the swing connection piece is provided with a second connection sleeve communicating with the second wiring channel; The second connecting sleeve is connected to the first connecting sleeve via a pivot shaft, and a pre-tightening member is provided on the pivot shaft.

6. The lighting device according to any one of claims 1 to 4, characterized in that: The lower end of the swing connector is provided with a plug sleeve, the heat sink in the lamp body has a plug hole, and the plug sleeve is fastened in the plug hole.

7. The lighting device according to any one of claims 1 to 4, characterized in that: A light diffuser is provided in the lamp body, and the light diffuser is located below the light source; The light emitting surface of the light scattering device is provided with a plurality of corrugated light scattering stripes, any two adjacent light scattering stripes are arranged at intervals from each other, and the side surfaces and / or bottom surfaces of the light scattering stripes are corrugated; The scattered light stripes are located in the light outlet of the lamp body.

8. The lighting device according to claim 7, characterized in that In the up-down direction, one side surface of the scattered light stripe is a vertical surface, and the other side surface of the scattered light stripe is a curved surface.

9. The lighting device according to claim 7, characterized in that: The light scattering device comprises a light guide plate, and the light scattering stripes are arranged on the bottom surface of the light guide plate; or, The light-scattering device comprises a conical lens, and the radius of the conical lens gradually increases in a direction from top to bottom; The top surface of the conical lens is provided with a light entrance groove, the groove wall surface of the light entrance groove is a curved surface, and the scattered light stripes are provided on the bottom surface of the conical lens.

10. The lighting device according to claim 9, characterized in that A conical incident groove is provided at the center of the groove bottom of the light incident groove, and the radius of the conical incident groove gradually decreases in the direction from top to bottom.

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