CN215808155U - Blackboard lamp convenient to adjust - Google Patents

Abstract

The utility model relates to the field of blackboard lamps, in particular to a blackboard lamp convenient to adjust, which comprises a blackboard lamp main body, a hoisting assembly and an angle adjusting mechanism, wherein the blackboard lamp main body comprises a lamp body section bar and an end cover, light source subassembly and lens, the hoist and mount subassembly includes the jib, angle adjusting mechanism includes the installing support, fixed bolster and angle fixed part, the installing support includes mounting panel and backup pad, the mounting panel sets firmly in the jib bottom, the mounting panel bottom side has set firmly two backup pads, first hinge hole is established to the backup pad bottom, the fixed bolster is including articulated pipe and fixing base, the hinge pipe is established at the fixing base top, articulated pipe articulates between the first hinge hole of two backup pads, the fixing base bottom sets firmly one side at lamp body section bar, lamp body section bar opposite side sets firmly light source subassembly and lens, lamp body section bar both ends set firmly the end cover, be equipped with the angle fixed part between installing support and the fixed bolster. The blackboard lamp is reasonable in structural design, not only is stable in connection, but also can be used for conveniently adjusting the angle of the blackboard lamp main body.

Description

Blackboard lamp convenient to adjust

Technical Field

The utility model relates to the technical field of blackboard lamps, in particular to a blackboard lamp convenient to adjust.

Background

Lamps, lighting articles, generally refer to lighted implements. The blackboard lamp is a special lamp for a blackboard in a campus classroom, and the blackboard lamp directly irradiates the blackboard, so that students can clearly see the writing on the blackboard, and the influence of the reflection of light on the blackboard on the students is avoided.

The general hoist and mount of current blackboard lamp are installed at the classroom top, in order to make the accurate region of writing at the blackboard of shining in the luminous position of blackboard lamp, need carry out the regulation of angle to the illuminating part of blackboard lamp, make the more efficient use of blackboard lamp, and current hoist and mount blackboard lamp illuminating part angle modulation structure often more complicated, and the linkage effect is good inadequately, and easy production is rocked, and angle modulation structure that has now in addition still often is not convenient for angle modulation, is unfavorable for the high-efficient use of blackboard lamp. The present invention improves upon the above-mentioned deficiencies.

Disclosure of Invention

In order to overcome the defects of the background art, the utility model provides the blackboard lamp convenient to adjust, which is reasonable in structural design, not only is stable in connection, but also can be convenient for adjusting the angle of the blackboard lamp main body, so that the practical use requirements can be better met.

The technical scheme adopted by the utility model is as follows: a blackboard lamp convenient to adjust comprises a blackboard lamp body, a hoisting assembly and an angle adjusting mechanism, wherein the blackboard lamp body comprises a lamp body profile, an end cover, a light source assembly and a lens, the hoisting assembly comprises a hanging rod, the angle adjusting mechanism comprises a mounting support, a fixing support and an angle fixing piece for supporting angles, the mounting support comprises a mounting plate and a supporting plate, the mounting plate is fixedly arranged at the bottom of the hanging rod, two supporting plates which are arranged side by side are fixedly arranged at the bottom side of the mounting plate, a first hinge hole is formed in the bottom of the supporting plate, the fixing support comprises a hinge pipe and a fixing seat, the hinge pipe is arranged at the top of the fixing seat, the hinge pipe is hinged between the first hinge holes of the two supporting plates, the bottom of the fixing seat is fixedly arranged at one side of the lamp body profile, and the other side of the lamp body profile is fixedly provided with the lamp body and the lens, the end covers are fixedly arranged at two ends of the lamp body section, and the angle fixing piece is arranged between the mounting support and the fixing support.

In order to facilitate the connection of the fixed seat and the lamp body section, the fixed seat comprises a T-shaped seat and an L-shaped plate, the top of the T-shaped seat is provided with the hinged pipe, two ends of the bottom of the T-shaped seat are respectively provided with the L-shaped plate, a sliding clamping groove is formed between the L-shaped plate and the T-shaped seat, the T-shaped seat is provided with a first fixing hole for mounting a fixing screw, one side of the lamp body section is provided with a mounting clamping groove, the outer ends of two sides of the mounting clamping groove are respectively provided with a fixing boss matched with the sliding clamping groove, the angle fixing part adopts an angle fixing plate, the bottom end of the angle fixing plate is clamped into the mounting clamping groove and is positioned between the two fixing bosses, the angle fixing plate is provided with a second hinged hole which is right opposite to the hinged pipe, a positioning pin is arranged between the top end of the angle fixing plate and the supporting plate, and the top end of the angle fixing plate is provided with a plurality of angle positioning holes matched with the positioning pin, and the supporting plate is provided with a positioning pin hole matched with the positioning pin.

Preferably, the positioning pin is a split pin.

For the convenience of assembly, the light source subassembly includes base plate and lamp pearl, and the base plate is rectangular shape, has set firmly a plurality ofly evenly on the base plate the lamp pearl, one side of lamp body section bar is equipped with first fixed slot and second fixed slot, the second fixed slot is located first fixed slot's the outside, first fixed slot with the base plate adaptation, second fixed slot with lens adaptation.

In order to facilitate the adjustment of the height of the blackboard lamp body, the hanger rod adopts a retractable hanger rod suite.

Preferably, still include power supply module, power supply module includes power and mounting bracket, the power is the constant current source, the mounting bracket is the I shape, and the both ends of mounting bracket all are equipped with the mounting hole, and the both sides at mounting bracket middle part all are equipped with curved spacing, and two spacing cards on the mounting bracket are all gone into in the mounting groove and spacing contradict in fixed boss, the one end of mounting bracket still is equipped with the second fixed orifices that is used for installing the fixed screw.

Preferably, the hoisting assembly further comprises an installation chassis and an installation back strip, the top of the suspender is fixedly arranged at the bottom of the installation chassis, and the installation back strip is fixedly arranged at the top of the installation chassis.

Preferably, the end cover comprises a left end cover and a right end cover, a plurality of first connecting holes are formed in the left end cover and the right end cover, second connecting holes opposite to the first connecting holes are formed in the lamp body section, and a wire passing groove is further formed in the left end cover.

In conclusion, the beneficial effects of the utility model are as follows:

1. the blackboard lamp main body can be hoisted at a proper height through the hanging rod, the light source assembly installed on the lamp body section bar is used for emitting light, the light is emitted to the blackboard after passing through the lens, the lens can better diffuse the light and is beneficial to obtaining better lighting effect, the two ends of the lamp body section bar are packaged through the installation end covers, the hinging is realized by arranging the hinging pipes, the connecting effect is good, the shaking is not easy to generate, the fixing seat is fixedly connected with the lamp body section bar, the angle of the blackboard lamp main body can be adjusted when the fixing support is rotated, the blackboard lamp main body can be fixedly supported through the angle fixing piece when the blackboard lamp main body is adjusted to a proper angle, the blackboard lamp in the technical scheme has reasonable structural design, not only is stable in connection, but also can be convenient for adjusting the angle of the blackboard lamp main body, and therefore the actual use requirements can be better met;

2. the fixing seat and the lamp body profile are reasonable in structural design, so that not only can fixed connection be conveniently realized, but also the position of the blackboard lamp main body can be conveniently and transversely adjusted, the blackboard lamp main body can better illuminate a blackboard, when the blackboard lamp main body is rotated, the fixing support and the angle fixing plate rotate relative to the mounting support along with the blackboard lamp main body, the angle fixing plate is provided with a plurality of angle positioning holes, so that angle adjustment can be conveniently realized, when the blackboard lamp main body is rotated to a proper angle, the blackboard lamp main body is fixedly supported through the angle fixing plate, and the cotter pin penetrates through the positioning pin hole in the supporting plate and then penetrates through the angle positioning hole for limiting and fixing, so that the blackboard lamp main body can be fixed to a proper angle, and the actual use requirement can be better met;

3. the suspender adopts a retractable suspender kit, the whole length of the suspender can be conveniently adjusted, and then the height of the blackboard lamp body can be conveniently adjusted, and the actual installation requirement can be better met.

The utility model is further described with reference to the following figures and detailed description.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and 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 these drawings without creative efforts.

FIG. 1 is an exploded view of the present invention;

FIG. 2 is a schematic structural view of a fixing bracket according to the present invention;

FIG. 3 is a schematic structural view of the mounting bracket of the present invention;

FIG. 4 is a schematic structural diagram of an angle fixing plate according to the present invention;

FIG. 5 is a partial schematic view of the lamp body profile of the present invention;

FIG. 6 is a schematic structural view of a mount of the present invention;

FIG. 7 is a schematic structural view of the left end cap of the present invention;

FIG. 8 is an enlarged view of a portion of FIG. 1 at A;

the figure marks 1-lamp body section bar, 2-lens, 3-hanging rod, 4-mounting bracket, 5-fixing bracket, 6-mounting plate, 7-support plate, 8-first hinge hole, 9-hinge tube, 10-T type seat, 11-L type plate, 12-sliding clamping groove, 13-first fixing hole, 14-mounting clamping groove, 15-fixing boss, 16-angle fixing plate, 17-second hinge hole, 18-angle positioning hole, 19-positioning pin hole, 20-base plate, 21-lamp bead, 22-first fixing clamping groove, 23-second fixing clamping groove, 24-first groove, 25-second groove, 26-power supply, 27-mounting frame, 28-mounting hole, 29-limiting strip, 30-second fixing hole, 31-mounting base plate, 32-mounting back strip, 33-limiting sleeve, 34-limiting nut, 35-connecting plate, 36-self-tapping screw, 37-plastic expansion pipe, 38-left end cover, 39-right end cover, 40-first connecting hole, 41-second connecting hole, 42-wire passing groove, 43-self-tapping countersunk head screw, 44-hinging screw rod and 45-hinging nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 8 in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to make the implementation objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1 to 8, the blackboard lamp convenient to adjust disclosed in this embodiment includes a blackboard lamp main body, a hoisting assembly and an angle adjusting mechanism, the blackboard lamp main body includes a lamp body profile 1, an end cover, a light source assembly and a lens 2, the hoisting assembly includes a hanging rod 3, the angle adjusting mechanism includes a mounting bracket 4, a fixing bracket 5 and an angle fixing member for supporting an angle, the mounting bracket 4 includes a mounting plate 6 and a supporting plate 7, the mounting plate 6 is fixedly disposed at the bottom of the hanging rod 3, two supporting plates 7 disposed side by side are fixedly disposed at the bottom side of the mounting plate 6, a first hinge hole 8 is disposed at the bottom of the supporting plate 7, the fixing bracket 5 includes a hinge pipe 9 and a fixing seat, the hinge pipe 9 is disposed at the top of the fixing seat, the hinge pipe 9 is hinged between the first hinge holes 8 of the two supporting plates 7, the bottom of the fixing seat is fixedly arranged on one side of the lamp body section bar 1, the other side of the lamp body section bar 1 is fixedly provided with the light source assembly and the lens 2, the two ends of the lamp body section bar 1 are fixedly provided with the end covers, and the angle fixing piece is arranged between the mounting support 4 and the fixing support 5. In the technical scheme, the bottoms of two hanging rods 3 are connected with a fixed blackboard lamp body through an angle adjusting mechanism, the blackboard lamp body can be hung at a proper height through the hanging rods 3, a light source assembly arranged on a lamp body section bar 1 is used for emitting light, the light passes through a lens 2 and then irradiates to a blackboard, the lens 2 can enable the light to be better diffused, and better lighting effect is achieved, the two ends of the lamp body section bar 1 are packaged through a mounting end cover, a mounting plate 6 is fixed at the bottom of the hanging rods 3, two parallel supporting plates 7 are arranged at the bottom side of the mounting plate 6 and can facilitate the hinging of a fixed support 5, a hinging pipe 9 is clamped between two first hinging holes 8 during assembly and then passes through a hinging screw rod 44, and a hinging nut 45 is arranged at one end of the hinging screw rod 44, so that the hinging connection between the mounting support 4 and the fixed support 5 is realized, and the hinging is realized through the arrangement of the hinging pipe 9, the connecting effect is good, and difficult production is rocked, fixing base and 1 fixed connection of lamp body section bar, so just can adjust the angle of blackboard lamp main part when rotating fixed bolster 5, can carry out fixed stay through the angle mounting when adjusting suitable angle with blackboard lamp main part, blackboard lamp structural design among the above-mentioned technical scheme is reasonable, not only connects stably, can also be convenient for adjust the angle of blackboard lamp main part, therefore can satisfy the in-service use demand better. During the concrete implementation, the bottom of jib 3 is equipped with the external screw thread, and mounting panel 6 is equipped with the through-hole with 3 adaptations of jib, and jib 3 can refer to prior art on fixed to mounting panel 6 through two nuts, does not do further explanation here. The lamp body profile 1, the end cap, the light source assembly and the lens 2 can all refer to the prior art, and are not further described here.

In order to facilitate the connection of the fixed seat and the lamp body section bar 1, the fixed seat comprises a T-shaped seat 10 and an L-shaped plate 11, the top of the T-shaped seat 10 is provided with the hinged pipe 9, two ends of the bottom of the T-shaped seat 10 are respectively provided with the L-shaped plate 11, a sliding clamping groove 12 is formed between the L-shaped plate 11 and the T-shaped seat 10, the T-shaped seat 10 is provided with a first fixing hole 13 for mounting a fixing screw, one side of the lamp body section bar 1 is provided with a mounting clamping groove 14, the outer ends of two sides of the mounting clamping groove 14 are respectively provided with a fixing boss 15 matched with the sliding clamping groove 12, the angle fixing part adopts an angle fixing plate 16, the bottom end of the angle fixing plate 16 is clamped into the mounting clamping groove 14 and is positioned between the two fixing bosses 15, the angle fixing plate 16 is provided with a second hinged hole 17 facing the hinged pipe 9, and a positioning pin is mounted between the top end of the angle fixing plate 16 and the support plate 7, the top end of the angle fixing plate 16 is provided with a plurality of angle positioning holes 18 matched with the positioning pins, and the supporting plate 7 is provided with positioning pin holes 19 matched with the positioning pins. In this embodiment, the first fixing holes 13 are threaded holes, two first fixing holes 13 are provided on the T-shaped base 10, the fixing base is clamped into the mounting slot 14 on one side of the lamp body profile 1 during assembly, the two fixing bosses 15 are respectively clamped into the two sliding slots 12 on the fixing base, the fixing base can slide on the lamp body profile 1, after the fixing base slides to a proper position, the two fixing screws are respectively screwed into the first fixing holes 13 for limiting and fixing, the fixing screws can play a role of limiting and fixing after abutting against the lamp body profile 1, the hinge screw 44 of the embodiment hinges the mounting bracket 4 and the fixing bracket 5 and passes through the second hinge hole 17 on the angle fixing plate 16, when the fixing base is clamped into the mounting slot 14 on one side of the lamp body profile 1, the bottom end of the angle fixing plate 16 is clamped into the mounting slot 14 and between the two fixing bosses 15, the fixing bracket 5 and the angle fixing plate 16 rotate relative to the mounting bracket 4 along with the blackboard lamp body when the lamp body is rotated, the hinged screw 44 forms a rotating shaft, the angle fixing plate 16 is provided with a plurality of angle positioning holes 18, angle adjustment can be conveniently realized, the blackboard lamp main body is fixedly supported through the angle fixing plate 16 when rotating to a proper angle, the positioning pin penetrates through the positioning pin hole 19 in the supporting plate 7 and then penetrates through the angle positioning holes 18 for limiting and fixing, and therefore the blackboard lamp main body can be fixed to a proper angle, and the actual use requirement can be better met. The fixing base and the lamp body section bar 1 are reasonable in structural design, fixed connection can be conveniently achieved, the fixing position of the fixing support 5 on the lamp body section bar 1 can be conveniently adjusted transversely, the position of the whole blackboard lamp main body can be conveniently adjusted transversely after the fixing screws in the first fixing holes 13 are unscrewed during specific implementation, the blackboard lamp main body can be enabled to better illuminate a blackboard, and the fixing screws are screwed to be limited and fixed after the position of the blackboard lamp main body is adjusted transversely. During specific implementation, the screw can be used for replacing a positioning pin to directly fixedly connect the angle fixing plate 16 and the supporting plate 7, and the limiting and fixing effects can be achieved.

Preferably, the positioning pin is a split pin. In this embodiment, all establish two location pinhole 19 on the backup pad 7, the top of angle fixed plate 16 sets up two rows of angle locating holes 18, passes angle locating hole 18 again after passing the locating pinhole 19 on the backup pad 7 with the split pin when blackboard lamp main part rotates suitable angle and carries out spacing fixed, can fix blackboard lamp main part suitable angle better through adopting the split pin, is favorable to promoting installation stability. The cotter pin belongs to the prior art and is not specifically described herein.

In order to facilitate assembly, the light source assembly comprises a substrate 20 and lamp beads 21, the substrate 20 is in a long strip shape, the lamp beads 21 are uniformly and fixedly arranged on the substrate 20, a first fixing clamping groove 22 and a second fixing clamping groove 23 are arranged on one side of the lamp body section bar 1, the second fixing clamping groove 23 is located on the outer side of the first fixing clamping groove 22, the first fixing clamping groove 22 is matched with the substrate 20, and the second fixing clamping groove 23 is matched with the lens 2. In this embodiment, first fixed slot 22 includes two first recesses 24 that set up relatively, second fixed slot 23 includes two second recesses 25 that set up relatively, lamp pearl 21 adopts LED lamp pearl 21, evenly set up a plurality of lamp pearls 21 on the base plate 20 of rectangular shape and can gain better illuminating effect, base plate 20 is directly gone into from the one end card of first fixed slot 22 during the assembly, lens 2 is also directly gone into from the one end card of second fixed slot 23, second fixed slot 23 is located the outside of first fixed slot 22 and enables the light source subassembly just to lens 2, the light that well installed back lamp pearl 21 jets out just passes lens 2, can be favorable to promoting illuminating effect, base plate 20 and lens 2's both ends are all spacing through the end cover, simple to operate.

In order to adjust the height of the blackboard light body conveniently, the suspender 3 adopts a retractable suspender kit. In this embodiment, jib 3 is used for the hoist and mount, and jib 3 adopts the shrink jib external member, can conveniently adjust jib 3's whole length, and then can conveniently adjust the height of blackboard lamp main part, can satisfy actual installation demand better. The telescopic boom kit is prior art and will not be described in detail herein.

As a preferred technical scheme, still include the power 26 subassembly, the power 26 subassembly includes power 26 and mounting bracket 27, power 26 is the constant current source, mounting bracket 27 is the I shape, and mounting bracket 27's both ends all are equipped with mounting hole 28, and the both sides at mounting bracket 27 middle part all are equipped with curved spacing 29, and two spacing 29 on the mounting bracket 27 are all gone into install the interior just spacing 29 of installing the card slot 14 and contradict in fixed boss 15, mounting bracket 27's one end still is equipped with the second fixed orifices 30 that are used for installing the fixed screw. In this embodiment, second fixed orifices 30 are the screw hole, power 26 adopts the constant current source can be convenient for supply power, during the assembly with mounting bracket 27 card to lamp body section bar 1 one side in installation draw-in groove 14, spacing strip 29 plays limiting displacement, mounting bracket 27 can slide on lamp body section bar 1, slide at mounting bracket 27 and twist set screw into second fixed orifices 30 after the suitable position and carry out spacing fixed, set screw just can play spacing fixed action after supporting tight lamp body section bar 1, power 26 passes through threaded connection and fixes to mounting bracket 27, set up threaded connection that mounting hole 28 can be convenient for.

As a preferred technical solution, the hoisting assembly further includes an installation chassis 31 and an installation back bar 32, the top of the hanger rod 3 is fixedly arranged at the bottom of the installation chassis 31, and the installation back bar 32 is fixedly arranged at the top of the installation chassis 31. In this embodiment, the bottom of the installation chassis 31 is provided with a through hole, the top of the suspension rod 3 is fixedly provided with a stop collar 33, the top end of the suspension rod 3 passes through the through hole on the installation chassis 31 and then is provided with a stop nut 34, thereby realizing the fixed connection between the suspension rod 3 and the installation chassis 31, two ends of the installation back strip 32 are respectively provided with a connecting plate 35, the installation back strip 32 is in threaded connection with the installation chassis 31 through the connecting plate 35, the installation back strip 32 is fixed on the ceiling of a classroom through a self-tapping screw 36 and a plastic expansion pipe 37, and the hoisting assembly has a reasonable structure and can well install and fix the suspension rod 3. The mounting base plate 31 and the mounting back strip 32 are referred to the prior art and will not be further described herein.

As a preferred technical solution, the end cover includes a left end cover 38 and a right end cover 39, the left end cover 38 and the right end cover 39 are both provided with a plurality of first connection holes 40, the lamp body profile 1 is provided with a second connection hole 41 facing the first connection hole 40, and the left end cover 38 is further provided with a wire passing groove 42. In this embodiment, the wire passing groove 42 formed in the left end cover 38 can facilitate wire passing, three first connection holes 40 are formed in the left end cover 38 and the right end cover 39, correspondingly, three second connection holes 41 are formed in the end portion of the lamp body section bar 1, the end covers are fixed to the end portion of the lamp body section bar 1 through self-tapping countersunk head screws 43 during installation, the two ends of the substrate 20 and the two ends of the lens 2 can be limited by fixing the left end cover 38 and the right end cover 39 to the two ends of the lamp body section bar 1 respectively, and the encapsulation effect can be effectively achieved.

The use method comprises the following steps: when the irradiation angle of the blackboard lamp body needs to be adjusted, only the cotter pin needs to be detached and taken down, at the moment, the fixing support 5, the angle fixing plate 16 and the blackboard lamp body can rotate together relative to the mounting support 4, when the blackboard lamp body rotates to a proper angle, the cotter pin penetrates through the positioning pin hole 19 in the supporting plate 7 and then penetrates through the angle positioning hole 18 for limiting and fixing, the blackboard lamp body can be well fixed to the proper angle by adopting the cotter pin, therefore, the irradiation angle of the blackboard lamp body can be conveniently adjusted, the efficient use of the blackboard lamp can be facilitated, when the blackboard lamp needs to be transversely adjusted, the position of the whole blackboard lamp body can be conveniently and transversely adjusted after the fixing screw in the first fixing hole 13 is unscrewed, the blackboard lamp body can be better irradiated on a blackboard, and the fixing screw is screwed up again for limiting and fixing after the position of the blackboard lamp body is transversely adjusted.

The fixing manner or the fixing connection manner that is not described in this embodiment may be threaded connection or welding, or other existing connection manners may be adopted according to specific positions, and both threaded connection and welding belong to the prior art, and are not specifically described herein.

The skilled person should understand that: although the present invention has been described in terms of the above embodiments, the inventive concept is not limited to this embodiment, and any modification which uses the inventive concept is intended to be included within the scope of the appended claims.

Claims (8)

1. The utility model provides a blackboard lamp of convenient regulation which characterized in that: the blackboard lamp comprises a blackboard lamp body, a hoisting assembly and an angle adjusting mechanism, wherein the blackboard lamp body comprises a lamp body profile, an end cover, a light source assembly and a lens, the hoisting assembly comprises a hanging rod, the angle adjusting mechanism comprises a mounting support, a fixing support and an angle fixing part for supporting angles, the mounting support comprises a mounting plate and a supporting plate, the mounting plate is fixedly arranged at the bottom of the hanging rod, two supporting plates which are arranged side by side are fixedly arranged at the bottom of the mounting plate, a first hinge hole is formed in the bottom of each supporting plate, the fixing support comprises a hinge pipe and a fixing seat, the hinge pipe is arranged at the top of the fixing seat and is hinged between the first hinge holes of the two supporting plates, the bottom of the fixing seat is fixedly arranged on one side of the lamp body profile, the other side of the lamp body profile is fixedly provided with the end cover and the two ends of the lamp body profile are fixedly provided with the end cover, the angle fixing piece is arranged between the mounting bracket and the fixing bracket.

2. The blackboard lamp convenient to adjust according to claim 1, characterized in that: the fixing seat comprises a T-shaped seat and an L-shaped plate, the top of the T-shaped seat is provided with the hinge pipe, two ends of the bottom of the T-shaped seat are respectively provided with the L-shaped plate, a sliding clamping groove is formed between the L-shaped plate and the T-shaped seat, the T-shaped seat is provided with a first fixing hole for mounting a fixing screw, one side of the lamp body section bar is provided with an installation clamping groove, the outer ends of the two sides of the installation clamping groove are respectively provided with a fixed lug boss matched with the sliding clamping groove, the angle mounting adopts the angle fixed plate, and the bottom card of angle fixed plate is gone into installation slot just is located between two fixed bosss, is equipped with on the angle fixed plate just right the second hinge hole of articulated pipe, the top of angle fixed plate with install the locating pin between the backup pad, the top of angle fixed plate be equipped with a plurality ofly with the angle locating hole of locating pin adaptation, be equipped with in the backup pad with the locating pin hole of locating pin adaptation.

3. The blackboard lamp convenient to adjust according to claim 2, characterized in that: the positioning pin is a split pin.

4. The blackboard lamp convenient to adjust as claimed in claim 3, wherein: the light source assembly comprises a substrate and a plurality of lamp beads, the substrate is in a long strip shape, the lamp beads are uniformly and fixedly arranged on the substrate, a first fixing clamping groove and a second fixing clamping groove are formed in one side of the lamp body section, the second fixing clamping groove is located in the outer side of the first fixing clamping groove, the first fixing clamping groove is matched with the substrate, and the second fixing clamping groove is matched with the lens.

5. The blackboard lamp convenient to adjust according to claim 4, characterized in that: the hanger rod adopts a telescopic hanger rod external member.

6. The blackboard lamp convenient to adjust according to claim 5, characterized in that: still include power supply module, power supply module includes power and mounting bracket, the power is the constant current source, the mounting bracket is the I shape, and the both ends of mounting bracket all are equipped with the mounting hole, and the both sides at mounting bracket middle part all are equipped with curved spacing, and two spacing card on the mounting bracket are all gone into in the mounting groove and spacing contradict in fixed boss, the one end of mounting bracket still is equipped with the second fixed orifices that is used for installing the fixed screw.

7. The blackboard lamp convenient to adjust as claimed in claim 6, wherein: the hoisting assembly further comprises an installation chassis and an installation back strip, the top of the suspender is fixedly arranged at the bottom of the installation chassis, and the installation back strip is fixedly arranged at the top of the installation chassis.

8. The blackboard lamp convenient to adjust according to claim 7, characterized in that: the end cover comprises a left end cover and a right end cover, a plurality of first connecting holes are formed in the left end cover and the right end cover, second connecting holes opposite to the first connecting holes are formed in the lamp body section, and a wire passing groove is further formed in the left end cover.

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