CN217540512U - Anti-dazzle blackboard lamp - Google Patents

Abstract

The utility model discloses an anti-dazzle blackboard lamp, include: the lamp holder is internally provided with a rotating groove, and the rotating groove is provided with a first opening; the light source assembly comprises a light source bracket and a lamp group, wherein the inner side of the light source bracket is provided with a mounting groove, the lamp group is fixedly connected to the inner side of the mounting groove, the mounting groove is provided with a second opening, and the light source bracket is rotatably connected to the inner side of the rotary groove; the light barrier is arranged at the lower side of the lamp holder, and the rear side of the light barrier is rotationally connected with the rear side of the lamp holder. The rotatable light source component is arranged on the inner side of the lamp holder, and the up-down angle of the second opening can be adjusted by rotating the light source component, so that the illumination angle of the second opening to the blackboard is adjusted; simultaneously, be equipped with rotatable barn door at the downside of lighting fixture, set up the barn door and can shelter from the light that jets to the back downside, adjust suitable angle to less to the light influence that jets to the blackboard, adjust more in a flexible way, when obtaining the illumination angle of better directive blackboard, it is also less to student and mr's dazzling interference, the illuminating effect is better.

Description

Anti-dazzle blackboard lamp

Technical Field

The utility model relates to the technical field of lamps and lanterns, in particular to anti-dazzle blackboard lamp.

Background

The blackboard lamp is a lamp for illuminating a blackboard in a classroom, light generated by the blackboard lamp has great influence on the quality of lessons, eyesight and the like of students, a teacher on a speaking desk is also influenced, the light of the blackboard lamp needs to be considered for illuminating the blackboard, and simultaneously dazzling interference on the students and the teacher is reduced as much as possible. After blackboard lamp and wall body installation, current adjustable illumination angle's blackboard lamp can be according to the difference of mounted position, adjusts suitable illumination angle that shines the blackboard, but has partial stray light to follow back downside directive student after adjusting, causes certain dazzling interference to student and mr, and the illuminating effect remains to improve.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an anti-dazzle blackboard lamp aims at solving the blackboard lamp among the prior art and after the illumination angle of adjusting suitable blackboard, disturbs more technical problem to the dazzling that student and mr produced.

In order to achieve the above object, the utility model provides an anti-dazzle blackboard lamp, include:

the lamp holder is internally provided with a rotating groove extending along the left-right direction, the rotating groove is provided with a first opening, and the first opening faces the front lower side;

the light source assembly comprises a light source support and a light source assembly, wherein a mounting groove is formed in the inner side of the light source support, the light source assembly is fixedly connected to the inner side of the mounting groove, the mounting groove is provided with a second opening, the light emitting side of the light source assembly faces the second opening, the light source support is rotatably connected to the inner side of the rotary groove, the rotary axis of the light source support is taken as a first axis, the first axis extends in the left-right direction, the width of the first opening is larger than that of the second opening, the second opening can circumferentially move along the first axis in the first opening, a first angle positioning structure is further arranged between the lamp support and the light source assembly, and the first angle positioning structure is used for positioning the rotary position of the light source support;

the light barrier, the barn door is located the downside of lighting fixture, the rear side of barn door with the rear side rotation of lighting fixture is connected, the barn door with the axis of rotation of lighting fixture extends along left right direction, the front side of barn door is located first open-ended downside, the lighting fixture with still be equipped with second angle location structure between the barn door, second angle location structure is used for right the turned position of barn door is fixed a position.

The utility model discloses set up the rotatable light source subassembly in the inboard of lighting fixture, the light that the banks sent is to the outside blackboard that is located the front downside through second opening and first opening, can adjust the upper and lower angle of second opening through rotating the light source subassembly to adjust the illumination angle of directive blackboard; simultaneously, downside at the lighting fixture is equipped with rotatable barn door, because the downside before the light that jets out from first opening is towards, but still have partial stray light to follow back downside directive student and mr, cause certain dazzling interference to student and mr, set up the barn door and can shelter from the light that jets out to back downside, reduce directive student and mr's light, and the barn door can rotate moreover, adjust the angle that shelters from stray light, and it is less to the light influence that jets out to the blackboard to adjust suitable angle. The angle of light source subassembly and barn door can be adjusted respectively to this technique, and it is more nimble to adjust, adapts to the change of mounted position better, when obtaining the illumination angle of better directive blackboard, also is less to student and mr's dazzling interference, and the illuminating effect is better.

Preferably, the lighting fixture includes first frame strip and first end cover, first frame strip extends along left right direction, first end cover releasable connection in the tip of first frame strip, the swivelling chute is located the inboard of first frame strip, the tip fixedly connected with end plate of barn door, the end plate is located the upside of barn door, the inboard of first end cover is equipped with and holds the holding tank of end plate, the downside of holding tank is equipped with the third opening, the end plate can pass the third opening and be in the holding tank is movable from top to bottom.

After the light source assembly and other parts are assembled inside the first frame strip, the first end cover is installed at the end part of the first frame strip to form the lamp bracket, the assembly is convenient, and the first end cover can shield the first frame strip more attractively. The end plates are arranged at the end parts of the light barrier and can shield light rays from being emitted from the left end and the right end, so that interference to students and teachers is reduced; the holding tank is arranged on the inner side of the first end cover, the end plates can move in the holding tank when the light barrier is rotated, and part of the end plates can be hidden in the holding tank, so that the anti-dazzle blackboard lamp is more attractive in appearance.

Preferably, the tip of first frame strip is equipped with first installation screw, keeping away from of first end cover one side of first frame strip is equipped with the fourth opening, the fourth opening with the holding tank intercommunication, being close to of holding tank be equipped with first mounting hole on the lateral wall of first frame strip, first installation screw with first mounting hole is just to setting up, be equipped with first installation screw in the first mounting hole, first installation screw with first installation screw threaded connection, the third opening with stagger the setting about first installation screw, keeping away from of first end cover one side releasable connection of first frame strip has first apron, first apron covers the fourth opening.

The first end cover is fixed with the first frame strip through a first mounting screw; after the first mounting screw penetrates through the first mounting hole of the accommodating groove and is locked, the screw head of the first mounting screw is pressed on the side wall, close to the first frame strip, of the accommodating groove, and the first mounting screw and the third opening are staggered left and right, so that the movement of the end plate is not influenced; after the first mounting screw is locked, the fourth opening is covered by the first cover plate, so that the anti-dazzle blackboard lamp is more attractive.

Preferably, the light source support includes second frame strip and second end cover, the second frame strip extends along left and right direction, second end cover releasable connection in the tip of second frame strip, the mounting groove is located the inboard of second frame strip, the second end cover with first end cover rotates and is connected.

After the lamp set and other parts are assembled in the second frame strip, the second end cover is installed at the end part of the second frame strip to form the light source support, and the assembly is convenient. The light source support is rotatably connected with the first end cover of the lamp holder through the second end cover, so that the light source support and the lamp holder can rotate relatively.

Preferably, the first angle positioning structure includes a plurality of first positioning teeth, an arc positioning surface is provided on a groove wall of the rotating groove, the arc positioning surface is coaxial with the first axis, the first positioning teeth are sequentially arranged on the arc positioning surface along the circumferential direction of the first axis, a first elastic ejecting member capable of pressing the first positioning teeth is provided on the second end cover, and the first elastic ejecting member can move in a telescopic manner along a direction close to or away from the arc positioning surface.

The second end cover is provided with a first elastic ejecting piece capable of pressing the first positioning teeth, and when the light source support is rotated, the first elastic ejecting piece can be far away from the concave parts of the positioning teeth along the tooth shapes of the first positioning teeth, so that the light source support can rotate; after the light source bracket rotates to a proper angle, the first elastic ejecting piece is matched with the concave part of the first positioning tooth to generate resistance, so that the light source bracket and the lamp holder are kept fixed.

Preferably, the first end cover be close to one side of first frame strip is equipped with first recess, the second end cover is located in the first recess, the second end cover with first recess rotates to be connected, first angle location structure includes a plurality of second location teeth, and is a plurality of second location tooth circumference arrange in the lateral wall of second end cover, be equipped with the fifth opening on the lateral wall of first recess, the fifth opening with the holding tank intercommunication, be equipped with the elastic arm on the first end cover, the elastic arm is located in the holding tank, be equipped with on the elastic arm just right the second latch of second location tooth, the elastic arm can make the second latch press to or keep away from second location tooth.

The second end cover can rotate in the first groove of the first end cover, a plurality of second positioning teeth are arranged on the second end cover, and the elastic arm and the second latch on the first end cover penetrate through the fifth opening and are pressed on the second positioning teeth; after the angle of the light source component is adjusted, the second latch locks the second positioning teeth with corresponding angles, so that the light source component is positioned at a required illumination angle; when the angle of the light source assembly needs to be adjusted, the second end cover is rotated to enable the elastic arm and the second latch to be separated from the second positioning tooth, so that the light source assembly can be rotated.

Preferably, the first angle positioning structure comprises a first arc-shaped long hole, a positioning screw hole and a positioning screw, the first arc-shaped long hole is formed in the first end cover, the central line of the first arc-shaped long hole is coaxially arranged with the first axis, the positioning screw hole is formed in the second end cover, and the positioning screw penetrates through the first arc-shaped long hole and is in threaded connection with the positioning screw hole.

Set up first arc slot hole on first end cover, set screw passes first arc slot hole and connects on the location screw of second end cover, when needs rotate the light source support, loosens set screw, and set screw can follow first arc slot hole and remove, adjusts to suitable angle after, and locking set screw can be to first end cover and second end cover locking, makes light source support and lighting fixture keep fixed.

Preferably, be equipped with a plurality of locating holes on the end plate, it is a plurality of the locating hole is followed the axis of rotation circumference of barn door is arranged, second angle location structure includes elastic component and locating pin, the elastic component with the locating pin is located in the holding tank, the elastic component with the locating pin is located first frame strip with between the end plate, the locating pin is located and is close to one side of end plate, it is a plurality of the locating hole all with locating pin position matching sets up, the elastic component can to the orientation is applyed to the locating pin the effort of end plate, being close to of locating pin the tip of locating hole is equipped with the direction inclined plane, the tip of locating pin can insert or withdraw from the locating hole.

The end plate is provided with a plurality of positioning holes, each positioning hole corresponds to different angles of the light barrier, the lamp holder is provided with an elastic part and a positioning pin, the end part of the positioning pin can be inserted into or withdrawn from the positioning hole, when the positioning pin is aligned with a certain positioning hole, the positioning pin can be inserted into the corresponding positioning hole under the action of the elastic part, the angle of the light barrier can be kept, and the positioning of the light barrier is realized; when the angle of the light barrier needs to be adjusted, the end part of the positioning pin is provided with the guide inclined plane, the positioning pin exits from the positioning hole along the guide inclined plane when the light barrier is rotated forcibly, and the light barrier can be rotated to other angles, so that the angle adjustment and the positioning of the light barrier are realized, and the operation is convenient.

Preferably, a mounting member is fixedly connected to the first end cover, and the light barrier is rotatably connected to the mounting member. The first end cover is provided with the installation part, the installation part of the light barrier can be used for being rotationally connected with the light bracket, and the structure is simpler.

Preferably, the second angle positioning structure comprises a damping hinge, two connecting ends of the damping hinge are respectively fixedly connected with the light barrier and the light holder, and the light barrier is rotatably connected with the light holder through the damping hinge and realizes the positioning of a rotating angle. The light barrier is rotationally connected with the lamp holder through the damping hinge and can be positioned at different angles.

Preferably, the lamp set comprises a plurality of point light sources, a plurality of polarized lenses and a plurality of reflecting cups, the plurality of point light sources are sequentially arranged along the left-right direction, the plurality of point light sources, the plurality of polarized lenses and the plurality of reflecting cups are arranged in a one-to-one correspondence manner, and the point light sources, the polarized lenses and the reflecting cups are sequentially arranged from far away from the second openings to near the second openings.

A plurality of point light sources are adopted to form a long light emitting area, each point light source is provided with a polarizing lens and a light emitting cup, the polarizing lens can independently adjust the emitting angle of each point light source, and the light is concentrated through the light reflecting cup, so that the light is more focused on the blackboard, and the dazzling interference is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic view of the three-dimensional structure of the anti-glare blackboard lamp of the present invention;

fig. 2 is a schematic cross-sectional structure view of a first frame strip of the present invention;

fig. 3 is a schematic cross-sectional structure diagram of the light source assembly and the light barrier when the second angular positioning structure is the damping hinge of the present invention rotates to an angle;

fig. 4 is a schematic cross-sectional structure diagram of the light source assembly and the light barrier when the second angle positioning structure is the damping hinge in the present invention and the light source assembly and the light barrier rotate to another angle;

fig. 5 is a schematic structural view of the first end cap and the end plate of the present invention;

fig. 6 is a schematic structural diagram of an embodiment of the first frame, the light source bracket and the first angle positioning structure of the present invention;

fig. 7 is a schematic structural view of another embodiment of the lamp holder, the light source bracket and the first angular positioning structure of the present invention;

FIG. 8 is a schematic view of the embodiment of FIG. 7 with the first end cap removed;

fig. 9 is a schematic structural diagram of another embodiment of the first end cap, the light source bracket, the first angle positioning structure and the second angle positioning structure of the present invention;

FIG. 10 is a schematic view of the left side of the first endcap in the embodiment of FIG. 9;

FIG. 11 is a schematic view of the right side of the first endcap in the embodiment of FIG. 9;

FIG. 12 is a schematic view of the embodiment shown in FIG. 9 with the second cover plate removed;

FIG. 13 is a schematic structural view of the first end cap and mount of the embodiment of FIG. 9;

fig. 14 is a schematic structural view of the second end cap in the embodiment of fig. 9.

In the drawings: 1-lamp holder, 11-rotary groove, 111-first opening, 112-first positioning tooth, 12-first frame strip, 121-first mounting screw hole, 122-rotary groove, 1221-sixth opening, 13-first end cover, 131-accommodating groove, 132-third opening, 133-fourth opening, 135-first arc long hole, 136-first groove, 137-fifth opening, 138-elastic arm, 1381-second latch, 139-first mounting hole, 14-first mounting screw, 15-first cover plate, 16-first indicating part, 17-second indicating part, 18-mounting part, 191-elastic part, 192-positioning pin, 2-light source component, 21-light source bracket, 211-light source bracket, 2111-second opening, 212-first graduated scale, 213-second frame strip, 2131-partition plate, 2132-heat dissipation cavity, 214-second end cover plate, 2142-positioning, 2142-rotary protrusion, 3-rotary protrusion, 4-second cover plate, 215-first graduated scale, 215-second graduated scale, 213-second graduated scale, 2141-second light baffle, 2142-end plate, 2142-rotary groove, 2143-third positioning groove, 3-third positioning tooth, 12-third positioning tooth, 133-third positioning tooth, and fourth positioning tooth.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications such as up, down, left, right, front, back, etc. are referred to in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 1 to 14, an anti-glare blackboard lamp includes a lamp holder 1, a light source assembly 2, and a light blocking plate 3.

The lamp holder 1 is provided with a rotation groove 11 extending in the left-right direction on the inner side thereof, and referring to fig. 2, the rotation groove 11 has a first opening 111, and the first opening 111 faces the front lower side. The upper side of the lamp bracket 1 can be fixed with a ceiling through a hanging piece, and the blackboard is positioned in the front lower part of the lamp bracket 1.

The light source assembly 2 includes a light source support 21 and a light group 22, an installation groove 211 is disposed on an inner side of the light source support 21, the light group 22 is fixedly connected to the inner side of the installation groove 211, the installation groove 211 has a second opening 2111, a light emitting side of the light group 22 faces the second opening 2111, the light source support 21 is rotatably connected to an inner side of the rotary groove 11, a rotation axis of the light source support 21 is used as a first axis, the first axis extends along a left-right direction, a width of the first opening 111 is greater than a width of the second opening 2111, and the second opening 2111 can circumferentially move along the first axis in the first opening 111. Still be equipped with first angle location structure between lighting fixture 1 and the light source subassembly 2, first angle location structure is used for fixing a position the rotational position of light source support 21. Since the width of the first opening 111 is greater than the width of the second opening 2111, that is, the angle of the first opening 111 relative to the first axis is greater than the angle of the second opening 2111 relative to the first axis, when the light source assembly 2 is rotated, the second opening 2111 can move up and down in the first opening 111 by a certain angle, and the first opening 111 does not block light from exiting from the second opening 2111.

The downside of lighting fixture 1 is located to barn door 3, and the rear side of barn door 3 rotates with the rear side of lighting fixture 1 to be connected, and the axis of rotation of barn door 3 and lighting fixture 1 extends along left right direction, and the downside of first opening 111 is located to the front side of barn door 3, but the front side of barn door 3 upper and lower rotation, the angle of the front side relative to lighting fixture 1 that changes barn door 3, and light jets out from the upside of the front side of barn door 3. A second angle positioning structure is further arranged between the lamp holder 1 and the light barrier 3, and the second angle positioning structure is used for positioning the rotating position of the light barrier 3.

Referring to fig. 3 and 4, the utility model discloses set up rotatable light source subassembly 2 in the inboard of lighting fixture 1, the outside blackboard of downside before the light that banks 22 sent passes through second opening 2111 and first opening 111 directive is located, can adjust the upper and lower angle of second opening 2111 through rotating light source subassembly 2 to adjust the illumination angle of directive blackboard, and keep the angle of light source subassembly 2 through first angular positioning structure. Meanwhile, the rotatable light barrier 3 is arranged on the lower side of the lamp holder 1, and as the light emitted from the first opening 111 faces the front lower side, part of stray light still emits to students and teachers from the rear lower side, and certain glare interference is caused to the students and teachers; set up barn door 3 and can shelter from the light that penetrates to back downside, reduce directive student and mr's light, barn door 3 can rotate moreover, adjusts the angle that shelters from stray light, and adjusts that suitable angle is less to the light influence that penetrates to the blackboard.

In the technology, the light source component 2 and the light barrier 3 can rotate relative to the lamp bracket 1, the angles of the light source component 2 and the light barrier 3 can be respectively adjusted, the adjustment is more flexible, the change of the installation position is better adapted, the glare interference to students and teachers is smaller while the better illumination angle of the shot blackboard is obtained, and the illumination effect is better.

In some embodiments, referring to fig. 5, the lamp holder 1 includes a first frame strip 12 and a first end cap 13, the first frame strip 12 extends along a left-right direction, the first end cap 13 is detachably connected to an end portion of the first frame strip 12, the rotation slot 11 is disposed inside the first frame strip 12, an end plate 31 is fixedly connected to an end portion of the light barrier 3, the end plate 31 is disposed on an upper side of the light barrier 3, an accommodating slot 131 capable of accommodating the end plate 31 is disposed inside the first end cap 13, a third opening 132 is disposed on a lower side of the accommodating slot 131, and the end plate 31 can pass through the third opening 132 and move up and down in the accommodating slot 131.

The left end and the right-hand member of first frame strip 12 all are equipped with first end cover 13, and first frame strip 12 can be the section bar, after spare parts such as the inside equipment light source subassembly 2 of first frame strip 12, again install first end cover 13 at the tip of first frame strip 12 and make up into lighting fixture 1, and the equipment is convenient, and first end cover 13 shelters from first frame strip 12 also more pleasing to the eye. The inside or the top of the first frame strip 12 can be provided with power components and the like. The end plate 31 is arranged at the end part of the light barrier 3, the normal line of the end plate 31 is arranged along the left and right directions, and the end plate 31 can shield light rays from emitting from the left end and the right end, so that the interference to students and teachers is reduced; the receiving groove 131 is formed inside the first end cap 13, so that the end plate 31 can move in the receiving groove 131 when the light-blocking panel 3 is rotated, and a part of the end plate 31 can be hidden in the receiving groove 131, thereby making the appearance of the anti-glare blackboard lamp more beautiful.

Further, referring to fig. 6, the end portion of the first frame strip 12 is provided with a first mounting screw hole 121, one side of the first end cover 13, which is far away from the first frame strip 12, is provided with a fourth opening 133, the fourth opening 133 is communicated with the accommodating groove 131, the accommodating groove 131 is provided with a first mounting hole 139 on the side wall, which is close to the first frame strip 12, the first mounting screw hole 121 and the first mounting hole 139 are arranged in a right-to-left manner, a first mounting screw 14 is arranged in the first mounting hole 139, the first mounting screw 14 is in threaded connection with the first mounting screw hole 121, the third opening 132 and the first mounting screw 14 are arranged in a left-right staggered manner, one side of the first end cover 13, which is far away from the first frame strip 12, is detachably connected with a first cover plate 15, and the first cover plate 15 covers the fourth opening 133.

The first end cover 13 is fixed with the first frame strip 12 through a first mounting screw 14; after the first mounting screw 14 passes through the first mounting hole 139 of the receiving groove 131 and is locked with the first mounting screw hole 121, the screw head of the first mounting screw 14 is pressed on the side wall of the receiving groove 131 close to the first frame strip 12, and the first mounting screw 14 and the third opening 132 are staggered left and right, so that the movement of the end plate 31 is not influenced; after the first mounting screw 14 is fastened, the fourth opening 133 is covered by the first cover plate 15, making the anti-glare blackboard lamp more beautiful.

In some embodiments, referring to fig. 5 and 6, the light source support 21 is provided with a first graduated scale 212, the first graduated scale 212 extends along a circumferential direction of the first axis, the lamp holder 1 is provided with a first indicating portion 16 capable of indicating the first graduated scale 212, the end plate 31 is provided with a second graduated scale 311, the second graduated scale 311 extends along a circumferential direction of the rotation axis of the light barrier 3 and the lamp holder 1, and the lamp holder 1 is provided with a second indicating portion 17 capable of indicating the second graduated scale 311.

When the light source support 21 rotates, the first indication part 16 and the first graduated scale 212 are matched to indicate the current angle of the light source support 21; when the light barrier 3 rotates, the second indicating portion 17 and the second graduated scale 311 are matched to indicate the current angle of the light barrier 3, so that an installer can record the angle in the adjusting process or after the adjustment, and the adjustment is more convenient according to the specific angle value. The first scale 212 may be on an outer circumferential surface of the light source holder 21, and the first indication part 16 may be an edge of the first opening 111. The second scale 311 may be on the side of the end plate 31 away from the first frame strip 12, and the second indicator 17 may be the lower side of the first end cap 13.

Further, a second cover plate 313 is detachably connected to the end plate 31, and the second cover plate 313 is disposed on a side of the end plate 31 away from the lamp holder 1. The second cover plate 313 is arranged on the end plate 31 to shield the end plate 31, so that the appearance is improved. Specifically, a screw hole is formed on a side of the second cover plate 313 close to the end plate 31, and a screw passes through the end plate 31 and is connected with the screw hole on the second cover plate 313, so that the second cover plate 313 and the end plate 31 can be fixed. The second scale 311 may be provided on the second cover plate 313.

In some embodiments, the light source bracket 21 includes a second frame strip 213 and a second end cap 214, the second frame strip 213 extends along the left-right direction, the second end cap 214 is detachably connected to an end of the second frame strip 213, the mounting groove 211 is disposed inside the second frame strip 213, and the second end cap 214 is rotatably connected to the first end cap 13.

The second frame strip 213 may be a profile, and after the components such as the lamp set 22 are assembled inside the second frame strip 213, the second end cap 214 is installed at the end of the second frame strip 213 to form the light source bracket 21, which is convenient for assembly. The light source support 21 is rotatably connected with the first end cap 13 of the lamp holder 1 through the second end cap 214, so that the light source support 21 and the lamp holder 1 can rotate relatively. The cross sections of the rotating groove 11 and the second frame strip 213 are arc-shaped and are matched with each other.

In some embodiments, referring to fig. 6, the first end cap 13 and the second end cap 214 can be connected by the first turning screw 23 and can be connected by the first turning screw 23 in a turning manner, that is, the axis of the first turning screw 23 is the first axis. In other embodiments, referring to fig. 7 and 8, a side of the first end cap 13 close to the second end cap 214 is provided with a rotation groove, a side of the second end cap 214 close to the first end cap 13 is provided with a rotation protrusion 2143, the rotation protrusion 2143 is inserted into the rotation groove and can rotate relatively, and an axis of the rotation protrusion 2143 is a first axis.

In some embodiments, referring to fig. 6, the first angle positioning structure includes a plurality of first positioning teeth 112, a circular arc positioning surface is disposed on a wall of the rotating slot 11, the circular arc positioning surface is coaxial with the first axis, the plurality of first positioning teeth 112 are sequentially arranged on the circular arc positioning surface along the first axis in a circumferential direction, a first elastic top 215 capable of pressing the first positioning teeth 112 is disposed on the second end cap 214, and the first elastic top 215 is capable of moving in a direction approaching to or away from the circular arc positioning surface in a telescopic manner.

The second end cap 214 is provided with a first elastic top piece 215 capable of pressing the first positioning tooth 112, when the light source bracket 21 is rotated, the first elastic top piece 215 can be extended and retracted, and the first elastic top piece 215 can be far away from the concave part of the positioning tooth along the tooth shape of the first positioning tooth 112, so that the light source bracket 21 can be rotated; after rotating to a proper angle, the first elastic top 215 cooperates with the concave portion of the first positioning tooth 112 to generate resistance, so that the light source bracket 21 and the lamp holder 1 are kept fixed. In some embodiments, the first elastic top 215 is a wave ball screw, and the wave ball can move telescopically; the first elastic top 215 may also be provided on the second end cap 214 by a spring.

In some embodiments, referring to fig. 9 to 14, a first groove 136 is disposed on a side of the first end cap 13 close to the first frame 12, the second end cap 214 is disposed in the first groove 136, the second end cap 214 is rotatably connected to the first groove 136, the first angle positioning structure includes a plurality of second positioning teeth 2144, the plurality of second positioning teeth 2144 are circumferentially arranged on an outer side wall of the second end cap 214, a fifth opening 137 is disposed on a side wall of the first groove 136, the fifth opening 137 is communicated with the receiving groove 131, the first end cap 13 is disposed with an elastic arm 138, the elastic arm 138 is disposed in the receiving groove 131, the elastic arm 138 is disposed with a second latch 1381 opposite to the second positioning tooth 2144, and the elastic arm 138 can enable the second latch 1381 to press towards or away from the second positioning tooth 2144.

The second end cap 214 can rotate in the first groove 136 of the first end cap 13, the second end cap 214 is provided with a plurality of second positioning teeth 2144, and the elastic arm 138 and the second latch 1381 on the first end cap 13 pass through the fifth opening 137 and press on the second positioning teeth 2144; after the angle of the light source component 2 is adjusted, the second latch 1381 latches the second positioning tooth 2144 with a corresponding angle, so that the light source component 2 is positioned at a required illumination angle; when the angle of the light source assembly 2 needs to be adjusted, the second end cap 214 is rotated to disengage the elastic arm 138 and the second latch 1381 from the second positioning teeth 2144, so that the light source assembly 2 can be rotated.

In some embodiments, referring to fig. 7, the first angle positioning structure includes a first arc-shaped long hole 135, a positioning screw hole and a positioning screw 2142, the first arc-shaped long hole 135 is disposed on the first end cap 13, a central line of the first arc-shaped long hole 135 is coaxially disposed with the first axis, the positioning screw hole is disposed on the second end cap 214, and the positioning screw 2142 passes through the first arc-shaped long hole 135 and is in threaded connection with the positioning screw hole.

Set up first arc slot 135 on first end cover 13, set screw 2142 passes first arc slot 135 and connects on the location screw of second end cover 214, when light source support 21 is rotated to needs, loosen set screw 2142, set screw 2142 can follow first arc slot 135 and remove, adjust to suitable angle after, lock set screw 2142 and can lock first end cover 13 and second end cover 214, make light source support 21 and lighting fixture 1 keep fixed.

In some embodiments, referring to fig. 3, a partition 2131 is disposed on the second frame strip 213, the partition 2131 is disposed on a side of the mounting groove 211 away from the second opening 2111, and a heat dissipation cavity 2132 is disposed between the partition 2131 and the rotating groove 11. The partition board 2131 forms a heat dissipation cavity 2132 in the rotating groove 11, and heat generated by the lamp group 22 can be dissipated through the heat dissipation cavity 2132, which is beneficial to heat dissipation of the lamp group 22. The heat dissipation cavity 2132 may be disposed inside the second frame strip 213, or may be a space between the second frame strip 213 and the rotation slot 11. In some embodiments, a side of the partition 2131 adjacent to the heat dissipation chamber 2132 may be provided with heat dissipation strips to enhance the heat dissipation effect.

In some embodiments, referring to fig. 12 and 13, the end plate 31 is provided with a plurality of positioning holes 312, the plurality of positioning holes 312 are circumferentially arranged along the rotation axis of the light barrier 3, the second angular positioning structure includes an elastic member 191 and a positioning pin 192, the elastic member 191 and the positioning pin 192 are disposed in the receiving groove 131, the elastic member 191 and the positioning pin 192 are disposed between the first frame strip 12 and the end plate 31, the positioning pin 192 is disposed on a side close to the end plate 31, the plurality of positioning holes 312 are disposed in a position matching with the positioning pin 192, the elastic member 191 can apply a force to the positioning pin 192 toward the end plate 31, an end of the positioning pin 192 close to the positioning holes 312 is provided with a guiding slope, and an end of the positioning pin 192 can be inserted into or withdrawn from the positioning holes 312.

A plurality of positioning holes 312 are formed in the end plate 31, each positioning hole 312 corresponds to a different angle of the light barrier 3, an elastic member 191 and a positioning pin 192 are arranged on the lamp holder 1, the end of the positioning pin 192 can be inserted into or withdrawn from the positioning hole 312, when the positioning pin 192 is aligned with a certain positioning hole 312, the positioning pin 192 can be inserted into the corresponding positioning hole 312 under the action of the elastic member 191, the angle of the light barrier 3 can be maintained, and the positioning of the light barrier 3 is realized; when the angle of the light barrier 3 needs to be adjusted, since the end of the positioning pin 192 is provided with the guide slope, when the light barrier 3 is rotated forcefully, the positioning pin 192 exits from the positioning hole 312 along the guide slope, and the light barrier 3 can be rotated to another angle, so that the angle adjustment and positioning of the light barrier 3 are realized, and the operation is convenient. Specifically, the elastic member 191 may be a spring or a leaf spring; the end of the positioning pin 192 may be a hemisphere, the surface of the hemisphere is a guiding slope, and the diameter of the hemisphere is larger than the diameter of the positioning hole 312, so that the hemisphere may be partially inserted into the positioning hole 312 but not completely inserted, and the hemisphere may exit from the positioning hole 312 when the light barrier 3 is rotated.

In some embodiments, referring to fig. 12 and 13, a mounting member 18 is fixedly connected to the first end cap 13, and the light barrier 3 is rotatably connected to the mounting member 18. The first end cover 13 is provided with the mounting part 18, and the light barrier 3 can be rotatably connected with the lamp holder 1 by using the mounting part 18, so that the structure is simple. The mounting member 18 may be mounted on the first end cap 13 by screws, and the lower side of the mounting bar may protrude from the lower side of the first end cap 13 and be hinged to the rear side of the end plate 31.

In other embodiments, referring to fig. 7 and 8, the rotating connection structure between the light-blocking panel 3 and the light holder 1 may be further: be equipped with on the barn door 3 along the rotation strip 33 that left right direction extends, the downside of first frame strip 12 is equipped with along the rotation groove 122 that left right direction extends, and the downside that rotates groove 122 is equipped with and supplies barn door 3 pivoted sixth opening 1221, rotates strip 33 and rotates to connect in rotating groove 122, and barn door 3 rotates with revolving groove 122 through rotating strip 33 and is connected with lighting fixture 1.

The lower side of the lamp holder 1 is provided with a rotating groove 122, the light barrier 3 can be inserted into the rotating groove 122 through a rotating strip 33 to be connected with the lamp holder 1 in a rotating manner, and the size of the sixth opening 1221 is larger than the thickness of the part of the light barrier 3 connected with the rotating strip 33, so that the light barrier 3 can rotate. Specifically, the rotating bar 33 is cylindrical and is connected to the upper side of the light barrier 3 by an intermediate piece 331, the intermediate piece 331 penetrates through the sixth opening 1221, and the thickness of the intermediate piece 331 is smaller than the width of the sixth opening 1221. In other embodiments, the rotation bar 33 may also be arranged at the rear end of the light barrier 3. The rotating groove 122 may be disposed on the inner side of the lower side of the lamp holder 1, or a convex protrusion may be disposed on the lower side of the first frame strip 12, and the rotating groove 122 is disposed on the inner side of the protrusion.

In some embodiments, referring to fig. 3 and 4, the second angular positioning structure includes a damping hinge 32, two connection ends of the damping hinge 32 are fixedly connected to the light barrier 3 and the light holder 1, respectively, and the light barrier 3 is rotatably connected to the light holder 1 through the damping hinge 32 to realize the positioning of the rotation angle. Damping hinge 32 installs the downside at lighting fixture 1 and the upside of barn door 3, and barn door 3 rotates through damping hinge 32 and lighting fixture 1 and is connected, and two link of damping hinge 32 rotate the back can keep at this angle, make barn door 3 can fix a position under different angles.

In some embodiments, referring to fig. 3 and 4, the lamp assembly 22 includes a plurality of point light sources 221, a plurality of polarized lenses 222 and a plurality of reflective cups 223, the plurality of point light sources 221 are sequentially arranged along the left-right direction, the plurality of point light sources 221, the plurality of polarized lenses 222 and the plurality of reflective cups 223 are arranged in a one-to-one correspondence at positions, and the point light sources 221, the polarized lenses 222 and the reflective cups 223 are sequentially arranged from far to near the second opening 2111. The point light source 221 is a lamp bead and is fixed on the inner side of the frame strip through a circuit board. The plurality of point light sources 221 are adopted to form a long light emitting area, each point light source 221 is provided with a polarizing lens 222 and a light emitting cup, the polarizing lens 222 can independently adjust the emitting angle of each point light source 221, and light is concentrated through the light reflecting cup 223, so that the light is more focused on the blackboard, and glare interference is reduced.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims (11)

1. An antiglare blackboard lamp, comprising:

the lamp holder is internally provided with a rotating groove extending along the left-right direction, the rotating groove is provided with a first opening, and the first opening faces the front lower side;

the light source assembly comprises a light source support and a light source assembly, wherein a mounting groove is formed in the inner side of the light source support, the light source assembly is fixedly connected to the inner side of the mounting groove, the mounting groove is provided with a second opening, the light emitting side of the light source assembly faces the second opening, the light source support is rotatably connected to the inner side of the rotary groove, the rotary axis of the light source support is taken as a first axis, the first axis extends along the left-right direction, the width of the first opening is larger than that of the second opening, the second opening can circumferentially move along the first axis in the first opening, a first angle positioning structure is further arranged between the light support and the light source assembly, and the first angle positioning structure is used for positioning the rotary position of the light source support;

the utility model discloses a lighting fixture, including lighting fixture, the light barrier is located the downside of lighting fixture, the rear side of light barrier with the rear side rotation of lighting fixture is connected, the light barrier with the axis of rotation of lighting fixture extends along left right direction, the front side of light barrier is located first open-ended downside, the lighting fixture with still be equipped with second angle location structure between the light barrier, second angle location structure is used for right the turned position of light barrier advances line location.

2. The anti-glare blackboard lamp according to claim 1, wherein the lamp holder includes a first frame strip and a first end cap, the first frame strip extends in a left-right direction, the first end cap is detachably connected to an end of the first frame strip, the rotating groove is disposed inside the first frame strip, an end plate is fixedly connected to an end of the light barrier, the end plate is disposed on an upper side of the light barrier, a receiving groove for receiving the end plate is disposed inside the first end cap, a third opening is disposed on a lower side of the receiving groove, and the end plate can pass through the third opening and move up and down in the receiving groove.

3. The anti-glare blackboard lamp according to claim 2, wherein a first mounting screw hole is formed at the end of the first frame strip, a fourth opening is formed at the side of the first end cap away from the first frame strip, the fourth opening communicates with the receiving tank, a first mounting hole is formed on the side wall of the receiving tank close to the first frame strip, the first mounting screw hole is opposite to the first mounting hole, a first mounting screw is arranged in the first mounting hole, the first mounting screw is in threaded connection with the first mounting screw, the third opening and the first mounting screw are staggered from left to right, a first cover plate is detachably connected to the side of the first end cap away from the first frame strip, and the first cover plate covers the fourth opening.

4. The anti-glare blackboard lamp according to claim 2, wherein the light source bracket includes a second frame strip extending in the left-right direction and a second end cap detachably coupled to an end of the second frame strip, the mounting groove is formed at an inner side of the second frame strip, and the second end cap is rotatably coupled to the first end cap.

5. An anti-glare blackboard lamp according to claim 4, wherein the first angle positioning structure includes a plurality of first positioning teeth, a circular arc positioning surface is provided on a wall of the rotary slot, the circular arc positioning surface is coaxially provided with the first axis, the plurality of first positioning teeth are sequentially arranged on the circular arc positioning surface along the circumferential direction of the first axis, the second end cap is provided with a first elastic top member capable of pressing the first positioning teeth, and the first elastic top member is capable of moving telescopically in a direction approaching or departing from the circular arc positioning surface.

6. The anti-glare blackboard lamp according to claim 4, wherein a first groove is formed on one side of the first end cap close to the first frame strip, the second end cap is disposed in the first groove, the second end cap is rotatably connected to the first groove, the first angle positioning structure includes a plurality of second positioning teeth, the second positioning teeth are circumferentially arranged on an outer side wall of the second end cap, a fifth opening is formed on a side wall of the first groove, the fifth opening is communicated with the receiving groove, an elastic arm is disposed on the first end cap, the elastic arm is disposed in the receiving groove, a second latch facing the second positioning teeth is disposed on the elastic arm, and the elastic arm can press or separate the second latch from the second positioning teeth.

7. An anti-glare blackboard lamp according to claim 4, wherein the first angle positioning structure includes a first arc-shaped long hole provided on the first end cap, a positioning screw hole having a center line coaxially arranged with the first axis, and a positioning screw provided on the second end cap, the positioning screw passing through the first arc-shaped long hole and being screw-coupled with the positioning screw hole.

8. An anti-glare blackboard lamp according to claim 2, wherein the end plate is provided with a plurality of positioning holes, the plurality of positioning holes are circumferentially arranged along the rotation axis of the light barrier, the second angular positioning structure includes an elastic member and a positioning pin, the elastic member and the positioning pin are disposed in the accommodating groove, the elastic member and the positioning pin are disposed between the first frame strip and the end plate, the positioning pin is disposed at a side close to the end plate, the plurality of positioning holes are disposed in a position matching with the positioning pin, the elastic member can apply an acting force to the positioning pin toward the end plate, an end portion of the positioning pin close to the positioning holes is provided with a guiding inclined surface, and the end portion of the positioning pin can be inserted into or withdrawn from the positioning holes.

9. An anti-glare blackboard light according to claim 2, wherein a mounting member is fixedly connected to the first end cap, and the light barrier is rotatably connected to the mounting member.

10. An anti-glare blackboard lamp according to claim 1, wherein the second angle positioning structure includes a damping hinge, two connection ends of the damping hinge are respectively and fixedly connected with the light barrier and the light holder, and the light barrier is rotatably connected with the light holder through the damping hinge and realizes the positioning of the rotation angle.

11. The anti-glare blackboard lamp according to claim 1, wherein the lamp set includes a plurality of point light sources, a plurality of polarizing lenses, and a plurality of reflecting cups, the plurality of point light sources are sequentially arranged in the left-right direction, the plurality of point light sources, the plurality of polarizing lenses, and the plurality of reflecting cups are disposed in one-to-one correspondence at positions, and the point light sources, the polarizing lenses, and the reflecting cups are sequentially arranged from far to near the second openings.

Images