CN210860852U

CN210860852U - Blackboard lamp

Info

Publication number: CN210860852U
Application number: CN201922264265.3U
Authority: CN
Inventors: 郑元利; 张江滨; 陈紫罡
Original assignee: Xiamen Xindeco Optoelectronics Co ltd
Current assignee: Xiamen Xindeco Optoelectronics Co ltd
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-06-26
Anticipated expiration: 2029-12-17

Abstract

The utility model relates to a blackboard lamp, including the lamp body and the gallows installed on the lamp body, the lamp body has been included by the casing made of section bar, is located the end cover on the both ends of casing length direction and installs the lighting assembly in the casing, has the spout that extends the setting along the casing length direction on the top surface of casing, the gallows includes jib, slider, connection piece and first mounting, slider and spout phase-match setting, the bottom of jib is fixed on this connection piece, the bottom of connection piece is through a rotatory connecting shaft pin joint on this slider; the blackboard lamp is characterized in that the sliding part is provided with a plurality of first positioning holes, the connecting piece is provided with a plurality of second positioning holes, and the first fixing part penetrates through the corresponding first positioning holes and the second positioning holes so as to enable the connecting piece to be fixedly installed on the sliding part, so that the problem that the existing blackboard lamp is inconvenient to adjust during installation is solved.

Description

Blackboard lamp

Technical Field

The utility model relates to the field of lighting, specifically relate to a blackboard lamp.

Background

The blackboard lamp is a special ceiling lamp, belongs to a polarized lamp and needs to uniformly illuminate a blackboard in a single-side polarized mode. Such blackboard lamps have such problems in the actual use: although the position and the size of the blackboard have national standards, the size, the height and the like of the blackboard and the ceiling mounting surface are different frequently in different regions and schools due to various reasons; therefore, parameters such as the installation height of the blackboard lamp, the installation distance between the blackboard lamp and the blackboard, the installation angle and the like are required to be adjusted frequently, the installation height, the installation distance and the installation angle of each school or even one classroom are required to be recalculated and adjusted, and the installation is complicated. And if the blackboard lamp after installation is tested and found that the illumination does not meet the requirements, the lamp can not be finely adjusted, so that the whole lamp can only be disassembled and re-installed, and time and labor are wasted.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a blackboard lamp to adjust inconvenient problem when solving current blackboard lamp installation.

The specific scheme is as follows:

a blackboard lamp comprises a lamp body and a hanger arranged on the lamp body, wherein the lamp body comprises a shell made of sectional materials, end covers positioned at two ends of the shell in the length direction and a lighting assembly arranged in the shell, a sliding groove extending along the length direction of the shell is formed in the top surface of the shell, the hanger comprises a hanging rod, a sliding part, a connecting piece and a first fixing part, the sliding part and the sliding groove are arranged in a matched mode, the sliding part can slide along the sliding groove and is locked on the shell in a locking mode, the bottom of the hanging rod is fixed on the connecting piece, and the bottom of the connecting piece is pivoted on the sliding part through a rotary connecting shaft; the connecting piece rotates for a certain angle around the rotary connecting shaft, at least one second positioning hole in the connecting piece can correspond to at least one first positioning hole in the sliding piece, and the first fixing piece penetrates through the corresponding first positioning hole and the second positioning hole to enable the connecting piece to be fixedly installed on the sliding piece.

Further, the first fixing piece is a cotter pin.

Furthermore, the sliding part comprises two L-shaped sliding pieces, the connecting piece is positioned between the two sliding pieces, the two sliding pieces and the connecting piece are locked and fixed into a whole through a screw rod and a nut, and the screw rod is the rotary connecting shaft.

Furthermore, the opening of the sliding groove is provided with a wing plate extending inwards the sliding groove, and the wing plate can prevent the sliding piece from being separated from the sliding groove in the axial direction of the hanging rod.

Furthermore, the connecting piece is provided with a fixing sleeve arranged along the axial direction of the suspender, the fixing sleeve is provided with a fixing pin hole penetrating through the fixing sleeve along the radial direction of the suspender, the lower part of the suspender is sleeved in the fixing sleeve and is provided with a through hole matched with the fixing pin hole, and the suspender is fixed on the connecting piece through a second fixing piece.

Further, the second fixing piece is a cotter pin.

Furthermore, the casing is towards the side end face of blackboard and the junction of bottom surface toward the internal depression and forms an open slot that extends toward this casing length direction, and this open slot just has an installation face on the open-ended bottom surface, installs LED light source board on this installation face, and LED light source board facing is equipped with a plurality of LED lamp pearls, and the place ahead of LED lamp pearl light-emitting side is provided with lens, and the light-emitting side of lens still is provided with the grid, and this grid forms the interval at the length direction of casing and sets up the light-emitting mouth.

Furthermore, the bottom surface of the shell is of an arc structure which is sunken towards the top surface, and the end part of the bottom surface, which is far away from the blackboard, is lower than the end part, which is close to the blackboard.

The utility model provides a blackboard lamp compares with prior art and has following advantage: the utility model provides a lamp body of blackboard lamp passes through the slip of slider in the spout, can realize the adjustment of lamp body position on blackboard length direction, and can realize the inclination of lamp body through the rotation between slider and the connection piece to just can carry out the adjustment of installation distance, angle to this blackboard lamp when the installation, need not to dismantle the reinstallation with whole lamp, saved the installation time of whole lamp greatly.

Drawings

Fig. 1 shows a perspective view of a blackboard lamp.

Fig. 2 shows an enlarged view at a in fig. 1.

Fig. 3 shows a schematic view of the slide 21.

Fig. 4 shows a schematic view of the connecting piece 22.

Fig. 5 shows a schematic sectional view of a blackboard lamp.

Fig. 6 shows a cross-sectional schematic view of the lamp body.

Detailed Description

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

The present invention will now be further described with reference to the accompanying drawings and detailed description.

As shown in fig. 1 to 4, the present embodiment provides a blackboard lamp including a lamp body 1 and two hangers 2 mounted on the lamp body.

Specifically, the lamp body 1 includes a housing 10 made of an aluminum alloy profile, end caps 11 disposed at two ends of the housing 10 in the length direction, and a lighting assembly 12 installed in the housing 10, and the top surface of the housing 10 has a sliding groove 100 extending along the length direction of the housing.

Each hanger 2 comprises a boom 20, a slide 21, a connecting piece 22 and a first fixing pin 23. The sliding member 21 is disposed to match the sliding groove 100, and the sliding member 21 can slide along the sliding groove 100 on the top surface of the housing 10, so as to realize the position relationship of the lamp body relative to the hanger 2, and after the position adjustment is completed, the sliding member 21 can be locked on the housing 10 by bolts. The sliding member 21 has a pivot 210, and the bottom of the connecting piece 22 is pivotally connected to the sliding member 21 via the pivot 210. The sliding member 21 has a plurality of first positioning holes 211, the connecting plate 22 has a plurality of second positioning holes 221, after the connecting plate 22 rotates a certain angle around the rotary connecting shaft 210, at least one second positioning hole 221 on the connecting plate 22 can correspond to at least one first positioning hole 211 on the sliding member 21, and the first fixing pin 23 passes through the corresponding first positioning hole 211 and second positioning hole 221 so that the connecting plate 22 is fixedly mounted on the sliding member 21.

When being installed, the hanger 20 is vertically disposed, and the top thereof is fixed to the ceiling of a classroom and the lower thereof is fixed to the case 10 by a connecting piece 22, so that the blackboard lamp is installed. In the installation process, the two hanging rods 20 can be fixed on the ceiling firstly, the lamp body 1 can be adjusted in the length direction of the blackboard by sliding the sliding part 21 in the sliding groove 100, and the inclination angle of the lamp body 1 can be adjusted by rotating the sliding part 21 and the connecting piece 22, so that the installation distance and the angle of the blackboard lamp can be adjusted when the blackboard lamp is installed, the whole lamp does not need to be disassembled and then installed again, and the installation time of the whole lamp is greatly saved.

In this embodiment, referring to fig. 1-4, the sliding member 21 includes two L-shaped

sliding pieces

21a, 21b, the two sliding

pieces

21a, 21b are locked together by a screw and a nut, and form a gap for installing the connecting piece 22, the two sliding

pieces

21a, 21b clamp the connecting piece 22, and the screw is used as the above-mentioned screwing shaft 210, which not only facilitates the connection between the sliding member 21 and the connecting piece 22, but also the two

sliding pieces

21a, 21b can clamp the connecting piece 22, and the screw and the nut can adjust the clamping force to ensure that the connecting piece 22 does not shake between the two sliding

pieces

21a, 21b, and ensure the stability of the blackboard lamp after installation.

In this embodiment, referring to fig. 1 to 5, the opening of the sliding slot 100 has a wing 101 extending into the sliding slot, and the wing 101 can prevent the sliding member 21 from coming out of the sliding slot 100 in the vertical direction, so as to facilitate the sliding of the sliding member 21 in the sliding slot 100, and can play a certain role in fixing the lamp body 1, so as to facilitate the installation and position adjustment of the lamp body 1.

In this embodiment, referring to fig. 2 and 4, the connecting piece 22 has a fixing sleeve 220 disposed along the axial direction of the suspension rod 21, the fixing sleeve 220 has a fixing pin hole 222 penetrating through the fixing sleeve 220 along the radial direction of the suspension rod 21, the lower portion of the suspension rod 21 is sleeved in the fixing sleeve 220 and has a through hole (not visible in the drawing) disposed in match with the fixing pin hole 222, and the suspension rod 21 is fixed to the connecting piece 22 by the second fixing pin 24. Realize fixed mounting through the second fixed pin between this jib 21 and the connection piece 22, only need during the assembly with the fixed pinhole 222 on the connection piece 22 and the through-hole on the jib 21 well, pass the second fixed pin again fixed can, need not use tools in the assembling process, greatly reduced the degree of difficulty of assembly, provided the efficiency of assembly.

In this embodiment, referring to fig. 6, a connecting portion of a side end surface and a bottom surface of the casing 10 facing the blackboard is recessed inward to form an open slot 101 extending in a length direction of the casing 10, the open slot 101 faces the bottom surface of the opening to form an installation surface 102, an LED light source board 120 is installed on the installation surface 102, a plurality of LED light beads 121 are attached to the LED light source board 120, a lens 122 (the lens structure may refer to CN208253462U) is disposed in front of a light emitting side of the LED light beads 121, a grating 123 is further disposed on the light emitting side of the lens, and the grating 123 forms light outlets at intervals in the length direction of the casing 10. The grid 123 can reduce glare caused by emergent rays of eyes in the side direction, and can play a certain role in preventing glare.

Preferably, the bottom surface of the shell is of an arc-shaped structure which is concave towards the top surface, and the end part of the bottom surface, which is far away from the blackboard, is lower than the end part, which is close to the blackboard, so that part of bright light on the upper part of the blackboard is blocked by the bottom surface of the arc-shaped structure, and the light is prevented from directly irradiating eyes to generate glare. Particularly, after the housing 10 is rotated by a certain angle due to adjustment, the bottom surface of the arc structure has a better function of preventing glare.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a blackboard lamp, includes the lamp body and installs the gallows on the lamp body, its characterized in that: the lamp body comprises a shell made of sectional materials, end covers positioned at two ends of the length direction of the shell and a lighting assembly arranged in the shell, a sliding groove extending along the length direction of the shell is formed in the top surface of the shell, the hanging bracket comprises a hanging rod, a sliding part, a connecting piece and a first fixing part, the sliding part and the sliding groove are arranged in a matched mode, the sliding part can slide along the sliding groove and is locked on the shell in a locking mode, the bottom of the hanging rod is fixed on the connecting piece, and the bottom of the connecting piece is pivoted on the sliding part through a rotary connecting shaft; the connecting piece rotates for a certain angle around the rotary connecting shaft, at least one second positioning hole in the connecting piece can correspond to at least one first positioning hole in the sliding piece, and the first fixing piece penetrates through the corresponding first positioning hole and the second positioning hole to enable the connecting piece to be fixedly installed on the sliding piece.

2. The blackboard lamp according to claim 1, characterized in that: the first fixing piece is a cotter pin.

3. The blackboard lamp according to claim 1, characterized in that: the sliding part comprises two L-shaped sliding pieces, the connecting piece is positioned between the two sliding pieces, the two sliding pieces and the connecting piece are locked and fixed into a whole through a screw rod and a nut, and the screw rod is the rotary connecting shaft.

4. The blackboard lamp according to claim 1, characterized in that: and a wing plate extending into the sliding groove is arranged at the opening of the sliding groove and can prevent the sliding piece from being separated from the sliding groove in the axial direction of the hanging rod.

5. The blackboard lamp according to claim 1, characterized in that: the connecting piece is provided with a fixing sleeve arranged along the axial direction of the suspender, the fixing sleeve is provided with a fixing pin hole penetrating through the fixing sleeve along the radial direction of the suspender, the lower part of the suspender is sleeved in the fixing sleeve and is provided with a through hole matched with the fixing pin hole, and the suspender is fixed on the connecting piece through a second fixing piece.

6. The blackboard lamp according to claim 5, characterized in that: the second fixing piece is a cotter pin.

7. The blackboard lamp according to claim 1, characterized in that: the casing is towards the side end face of blackboard and the junction of bottom surface towards the interior sunken open slot that forms toward this casing length direction extension, and this open slot just has an installation face on the open-ended bottom surface, installs LED light source board on this installation face, and LED light source board facing is equipped with a plurality of LED lamp pearls, and the place ahead of LED lamp pearl light-emitting side is provided with lens, and the light-emitting side of lens still is provided with the grid, and this grid forms the interval at the length direction of casing and sets up light-emitting outlet.

8. The blackboard lamp according to claim 7, characterized in that: the bottom surface of the shell is of an arc structure which is sunken towards the top surface, and the end part of the bottom surface, which is far away from one side of the blackboard, is lower than the end part, which is close to one side of the blackboard.