CN111486385A - Ceiling type mold grid L ED classroom lamp and using method - Google Patents

Abstract

The invention discloses a ceiling type mold gate L ED classroom lamp which can adapt to low-rise house installation, the ceiling type mold gate L ED classroom lamp comprises a first outer frame formed by splicing four first sectional materials end to end, a second outer frame formed by splicing four second sectional materials end to end, the first outer frame and the second outer frame are arranged in parallel and connected through a connecting piece, the first sectional materials comprise vertical first plate bodies, the side walls of the first plate bodies protrude to form first inserting grooves, the bottom edges of the first inserting grooves protrude to second plate bodies, the tops of the first inserting grooves are sunken to form inverted-convex-shaped second clamping grooves, the side walls of the second clamping grooves extend out of third plate bodies, the second sectional materials comprise vertical fourth plate bodies, screws are connected to the fourth plate bodies in a threaded mode, the top edges of the fourth plate bodies extend outwards to form fifth plate bodies, the fifth plate bodies are fixed on a wall body, the sixth plate bodies are used for being inserted into the second clamping grooves to be fixed, seventh plate bodies are arranged on the sixth plate bodies, and edges of the seventh plate bodies are provided with gaps.

Description

Ceiling type mold grid L ED classroom lamp and using method

Technical Field

The invention belongs to the technical field of ceiling lamps, and particularly relates to a ceiling type mold grid L ED classroom lamp and a using method thereof.

Background

The grille lamp is suitable for being installed in a writing room with a suspended ceiling as a lighting lamp. The light source is generally a fluorescent tube, and is divided into an embedded type and a ceiling type.

With the development of grille lamps, according to the needs of decoration customers and designers, the grille lamps can be divided into two styles of concealed installation and open installation. The reflecting covers are divided into I-type reflecting covers and V-type reflecting covers according to the types, different reflecting covers are greatly different in the aspects of attractiveness and reflecting effect, the ordinary V-type reflecting covers are better than the I-type reflecting covers in the aspects of attractiveness and reflecting effect, and the prices of the V-type reflecting covers are not greatly different. It is also very easy to distinguish between type I and type V, and can be distinguished visually.

The existing grille lamp is generally installed by firstly erecting an triangular keel suspended ceiling on a roof wall and then buckling the grille lamp on the triangular keel; the triangular keel suspended ceiling needs a certain height when being hoisted, and the triangular keel suspended ceiling is not applicable to buildings with lower floor heights.

Disclosure of Invention

The invention aims to provide a ceiling type mold grid L ED classroom lamp which can adapt to low-rise and high-rise house installation.

In order to solve the technical problem, the invention aims to realize that:

a ceiling type mold grid L ED classroom lamp comprises a first outer frame formed by splicing four first section bars end to end, a second outer frame formed by splicing four second section bars end to end, the first outer frame and the second outer frame are arranged in parallel and connected through a connecting piece, each first section bar comprises a vertical first plate body, the side wall of each first plate body protrudes to form a first inserting groove, the bottom edge of each first inserting groove protrudes out of the corresponding second plate body, the top of each first inserting groove is sunken to form an inverted convex second clamping groove, the side wall of each second clamping groove extends out of a third plate body, each second section bar comprises a vertical fourth plate body, a screw is connected to the fourth plate body through threads, the top edge of the fourth plate body extends outwards to form a fifth plate body, the fifth plate body is fixed on a wall body, the connecting piece comprises a sixth plate body, the sixth plate body is used for being inserted into the second clamping groove to be fixed, a seventh plate body is arranged on the sixth plate body, a notch is formed in the edge of the seventh plate body, a strip-shaped clamping groove is downwards extended, the screw penetrates through the strip-shaped clamping groove to be fixed in the strip-shaped clamping groove to realize the first outer frame, the lighting housing L is further arranged on the housing, and the second housing is fixedly.

On the basis of the scheme, the preferable scheme is that annular second connecting columns are protruded from the inner surfaces of the top wall and the two side walls of the first slot, two adjacent first section bars are connected through corners, each corner comprises an L-shaped main body, a front wall of the L-shaped main body is provided with an opening, the two side walls of the L-shaped main body are respectively attached to the end surfaces of the two adjacent first section bars, the two side walls of the L-shaped main body penetrate through bolts to be connected and fixed with the second connecting columns, a third clamping groove is formed in the lower surface of the fifth plate body, and the two adjacent second section bars are inserted into the corresponding third clamping grooves through corner connectors to be fixed.

On the basis of the scheme, the preferable scheme is that the cover comprises an eighth plate body, four sides of the eighth plate body are turned over to form folded plates, second male buckles with buckles facing outwards are arranged on the four folded plates in a staggered mode, two adjacent cover bodies are buckled into the folded plates through corresponding second male buckles to form splicing, the eighth plate body is sunken to form a grid, the grid comprises a horn-shaped curved surface body, the top surface and the bottom surface of the curved surface body are both provided with oval opening sections, a plurality of baffles with uniform intervals are arranged inside the curved surface body, four first male buckles with connecting lines forming a rectangle are protruded out of the outer surface of the top of the curved surface body, a L ED lamp group comprises a lens plate, an ED L and a lamp body, a plurality of uniformly-spaced hemispherical bulges are protruded out of the lower surface of the lens plate, the two adjacent hemispherical bulges are separated by one baffle, a first pit is formed in the sunken upper surface of the lens plate, a L ED pit is embedded in the lamp body for fixing, a second pit for placing lamp beads on the L ED lamp body is formed in a concave mode, the concave surface of the lamp body is fixedly connected with the lens plate and is connected with a lamp body clamping screw passing through a lamp plate L and a lamp body.

On the basis of the scheme, the preferable scheme is that a concave fourth clamping groove with a downward opening is protruded from the middle part of the first slot, the buckle head of the second male buckle is buckled into the fourth clamping groove for fixing, and the male buckle further comprises a lining, wherein the lining is an L-shaped shell, and the lining is sleeved on the outer surface of a corner.

On the basis of the above scheme and as a preferable scheme of the scheme: the included angle between the two side walls of the curved surface body is 90 degrees, the distance between two adjacent baffles is 18.6 millimeters, the bottom surfaces of the baffles are cambered surfaces, the radius of the cambered surfaces is 42 millimeters, and the glare value UGR is less than or equal to 16.

On the basis of the above scheme and as a preferable scheme of the scheme: the included angle between the two side walls of the curved surface body is 135 degrees, the distance between two adjacent baffles is 18.6 millimeters, the bottom surfaces of the baffles are cambered surfaces, the radius of the cambered surfaces is 125 millimeters, and the glare value UGR is less than or equal to 19.

On the basis of the above scheme and as a preferable scheme of the scheme: a circle of the inner side of the edge of the lower surface of the lens plate is provided with a first countersunk hole, and one side of the first countersunk hole is provided with a first through hole; a first threaded hole corresponding to the first countersunk hole is formed in the lamp body, a second through hole corresponding to the first through hole is formed in one side of the first threaded hole, the screw is a countersunk screw, and the countersunk screw is screwed into the first countersunk hole to form a fixed connection with the first threaded hole; the first male buckle penetrates through the first through hole and the second through hole to form a buckle connection.

On the basis of the above scheme and as a preferable scheme of the scheme: the upper surface of lens board is along inboard sunken two first draw-in grooves that form, and the lower surface protrusion of lamp body forms the first card strip of filling first draw-in groove, and countersunk screw and first pin thread all pass first draw-in groove.

On the basis of the above scheme and as a preferable scheme of the scheme: the sealing ring also comprises an annular sealing ring; the periphery of the first pit on the upper surface of the lens plate is sunken to form an annular third pit, and the sealing ring is embedded into the third pit and is extruded by the lamp body to form a first pit seal; the waterproof connector is also included; the upper surface of the lamp body is in threaded connection with the waterproof connector.

A use method of a ceiling type mold grid L ED classroom lamp comprises the following steps:

(1) the first section bar and the second section bar are made of aluminum section bars, the connecting piece is inserted into the first section bar, the first section bar is spliced into a first outer frame, and the second section bar is spliced into a second outer frame;

(2) the L ED lamp group is assembled and installed on the housing, grids with different specifications are selected according to different place requirements, the housing is spliced according to the number and the size of the rear covers, and the spliced housing is fixed on the first outer frame;

(3) the second outer frame is fixed on a wall body at the top of a classroom, and the connecting piece on the first outer frame is hooked on the second outer frame to form fixation.

Compared with the prior art, the invention has the outstanding and beneficial technical effects that:

the ceiling type model grid L ED classroom lamp comprises a first outer frame, a housing, a L ED lamp group, a second outer frame, a second male buckle, a lens plate, a lamp body, a grid, a sealing ring, a lamp holder, a lamp cover, a lamp base, a lamp cover, a lamp base, a lamp cover and a lamp, wherein the first outer frame is spliced by splicing a first section bar, the housing, the lamp holder and the lamp holder, the;

drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic diagram of the overall explosive structure of the present invention.

Fig. 3 is a schematic view of the structure of the first profile of the present invention.

Fig. 4 is a schematic view of the installation of the first profile and the connecting member of the present invention.

FIG. 5 is a schematic view of a second profile structure of the present invention.

FIG. 6 is a schematic view of a second profile structure of the present invention.

Fig. 7 is a schematic view of the connector structure of the present invention.

Fig. 8 is a schematic view of a corner structure of the present invention.

Fig. 9 is a schematic view of the housing splicing structure of the present invention.

Fig. 10 is a schematic view of a partial explosion configuration of the present invention.

Fig. 11 is a schematic diagram of a partial explosion configuration of the present invention.

Fig. 12 is a schematic view of the housing splicing structure of the present invention.

Fig. 13 is a partial structural schematic of the present invention.

Fig. 14 is a schematic view of the housing structure of the present invention.

Fig. 15 is an exploded view of an L ED lamp set according to the present invention.

Fig. 16 is an exploded view of L ED lamp set of the present invention.

Fig. 17 is an exploded view of an L ED lamp set according to the present invention.

Fig. 18 is an exploded view of an L ED lamp set according to the present invention.

Fig. 19 is a schematic view of the lens plate structure of the present invention.

Fig. 20 is a schematic view of the lens plate structure of the present invention.

Fig. 21 is a schematic diagram of the plate structure of the present invention.

Fig. 22 is a partial cross-sectional structural schematic of the present invention.

Fig. 23 is a partial structural schematic of the present invention.

The reference numerals refer to a cover 01, an eighth plate 010, a folded plate 011, a second male buckle 012, a grid 013, a curved surface body 014, a baffle 015, a first male buckle 016, a first connecting column 017, a L ED lamp group 02, a lens plate 020, a hemispherical protrusion 0200, a first pit 0201, a second pit 0202, a first countersunk hole 0203, a first through hole 0204, a first clamping groove 0205, a third pit 0206, a L ED lamp panel 021, a lamp body 022, a first threaded hole 0220, a second through hole 0221, a first clamping strip 0222, a screw 03, a sealing ring 04, a waterproof joint 6305, a support frame 06, a ninth plate 060, a tenth plate 061, a first profile 10, a first plate 100, a first slot 103, a second connecting column 1030, a fourth plate 101, a second plate 102, a second clamping groove 104, a third plate 105, a second profile clamp groove 11, a fourth plate 110, a fifth plate 111, a third clamping groove 112, a sixth connecting column 1030, a seventh strip-shaped clamping groove 3615, a corner notch 3615, a lining shaped back plate 150 and a L;

Detailed Description

The invention will be further described in the following with specific embodiments in conjunction with the accompanying drawings;

the embodiment provides a ceiling type mold grid L ED classroom lamp, which comprises a first outer frame formed by splicing four first section bars 10 end to end, and a second outer frame formed by splicing four second section bars 11 end to end, wherein the first outer frame and the second outer frame are arranged in parallel and are connected through a connecting piece 12;

the first section bar 10 comprises a vertical first plate body 100, a first slot 103 is formed by the protrusion of the side wall of the first plate body 100, a second plate body 102 is formed by the protrusion of the bottom edge of the first slot 103, an inverted convex second slot 104 is formed by the depression of the top of the first slot 103, the side wall of the second slot 104 extends out of a third plate body 105, the second section bar 11 comprises a vertical fourth plate body 110, a screw 03 is connected to the fourth plate body 110 in a threaded manner, the top edge of the fourth plate body 110 extends out of a fifth plate body 111, the fifth plate body 111 is fixed on a wall, the connecting piece 12 comprises a sixth plate body 120, the sixth plate body 120 is inserted into the second slot 104 for fixation, the connecting piece 12 can slide in the second slot 104, a seventh plate body 121 is arranged on the sixth plate body 120, the sixth plate body 120 and the seventh plate body 121 are vertically arranged, a gap 122 is formed on the edge of the seventh plate body 121, the gap 122 is in an inverted triangle shape, the gap 123 extends downwards, the screw 03 penetrates through the gap 122 to be tightly clamped in the strip-shaped slot 123 for fixation between a first outer frame 123 and a housing 3501 for mounting a lighting lamp, and a housing 3501, and a housing 10 is used for mounting on a housing, and a housing, a housing 10 for mounting a lighting lamp, and a housing;

as described above, the first profile 10 is assembled into the first outer frame, and the housing 01 and L ED lamp group 02 are arranged in the first outer frame to realize illumination, the second profile 11 is assembled into the second outer frame, the second profile 11 passes through the screw 03 or the expansion bolt to install the second outer frame on the top wall body, the connecting piece 12 is inserted into the first profile 10 of the first outer frame, and the connecting piece 12 is hung on the screw 03 of the second profile 11 to realize the hoisting of the first outer frame;

furthermore, the inner surfaces of the top wall and the two side walls of the first slot 103 are protruded to form a ring-shaped second connecting column 1030, two adjacent first section bars 10 are connected through a corner 15, the corner 15 comprises L-shaped main bodies 150, a front wall opening of the L-shaped main body 150 is formed in the corner 15, two side walls of the L-shaped main body 150 are respectively attached to the end surfaces of the two adjacent first section bars 10, and two side walls of the L-shaped main body 150 are fixedly connected with the second connecting column 1030 through bolts, so that the disassembly and assembly are facilitated effectively through the buckling connection between the corner 15 and the first section bars 10;

the lower surface of the fifth plate body 111 is provided with a third clamping groove 112, and two adjacent second profiles 11 are inserted into the corresponding third clamping grooves 112 through corner connectors to be fixed; instead of adopting a welding mode, the second section bar 11 can be repeatedly used;

further, the housing 01 includes an eighth plate 010, four edges of the eighth plate 010 are folded to form a folded plate 011; the four folded plates 011 are respectively provided with a second male buckle 012 with outward buckle heads, and the second male buckles 012 on the two folded plates 011 are arranged in a staggered way; two adjacent housings 01 are buckled into the folded plate 011 through the corresponding second male buckle 012 to form splicing. As described above, the effective passing folded plate 011 is provided with the second male buckle 012, the second male buckle 012 on the two folded plates 011 is arranged in a staggered manner, that is, when the housings 01 are spliced, when the adjacent housings 01 are spliced, the first male buckle 016 of the previous housing 01 is buckled into the folded plate 011 of the next housing 01, and the first male buckle 016 of the next housing 01 is buckled into the folded plate 011 of the previous housing 01, so as to form a connection mode of mutual buckling;

the eighth plate body 010 is rectangular, and the four edge directions of the housing 01 can be spliced to form a required size; the eighth plate body 010 is a regular polygon, and the edge of the housing 01 can be spliced;

the eighth plate body 010 is sunken to form a grid 013, the grid 013 comprises a horn-shaped curved surface body 014, the horn-shaped curved surface body 014 is used for shielding light rays irradiated by L ED (light-emitting diode) lamp beads and reducing the glare value of the light rays, the cross sections of openings on the top surface and the bottom surface of the curved surface body 014 are oval, a plurality of baffles 015 with uniform intervals are arranged inside the curved surface body 014, the baffles 015 are used for shielding the light rays irradiated by adjacent L ED lamp beads and avoiding excessive crossing and overlapping of the light rays to generate strong light spots, and four first male buckles 016 which are connected into a rectangle are protruded on the outer surface of the top of the curved surface body 014;

l ED lamp group 02 comprises a lens plate 020, a L ED lamp panel 021 and a lamp body 022, wherein a plurality of hemispherical bulges 0200 with uniform intervals protrude from the lower surface of the lens plate 020, two adjacent hemispherical bulges 0200 are separated by a baffle 015, a first pit 0201 is formed by sinking the upper surface of the lens plate 020, the first pit 0201 is internally embedded with L ED lamp panel 021 for fixation, and a second pit 0202 for placing a lamp bead on the L ED lamp panel 021 is formed by sinking the upper surface of the hemispherical bulges 0200;

the screw 03 penetrates through the lens plate 020 to be fixedly connected with the lamp body 022, the screw 03 is fixedly connected, the connection firmness is provided, and the conduction and heat dissipation effects can be improved, the lamp body 022 and the lens plate 020 clamp the L ED lamp panel 021, so that the L ED lamp panel 021 is further ensured not to move, and the light irradiated by a lamp bead on the L ED lamp panel 021 is more stable;

the waterproof LED lamp comprises a lens plate 020, a lamp body 022 screw 03, a L ED lamp panel 021, a waterproof connector 05, a lamp body 022, a L ED lamp panel 021, a sealing ring 04 and an IP 66L ED waterproof module, wherein the LED lamp panel 021 is placed on the upper surface of the lens plate 020 and is connected with the lamp body 022 screw 03 to form a whole, a first male buckle 016 on a grid 013 penetrates through the lens plate 020 to form buckle connection with the lamp panel, redundant part of light irradiated by a lamp bead on the L ED lamp panel 021 is shielded by the grid 013 and can only be within a range limited by the grid 013 to achieve the effect of reducing the glare value, the waterproof connector 05, the lamp body 022, the L ED lamp panel.

The novel section bar comprises a first section bar 10, a lining 16 and a lining 16, wherein the lining 16 is an L-shaped shell, the lining 16 is sleeved on the outer surface of a corner 15, the inner surface of the lining 16 is provided with a convex male buckle, a through hole female buckle is arranged on the corner 15 corresponding to the male buckle, the convex male buckle is embedded into the through hole female buckle to form fixation, the lining 16 is buckled on the corner 15, and the corner 15 is protected;

further, an included angle a between two side walls of the curved body 014 is 90 degrees, namely an included angle between two shading inclined planes on the drawing, a distance D between two adjacent baffles 015 is 18.6 mm, a bottom surface of the baffle 015 is an arc surface, a radius R of the arc surface is 42 mm, and a glare value UGR is less than or equal to 16; the glare value is reduced to 16 or below, the standard of classroom illumination is achieved, and low-flicker and low-glare effects are achieved;

in another embodiment, an included angle a between two side walls of the curved body 014 is 135 degrees, that is, an included angle between two shading inclined planes on the drawing, a distance D between two adjacent baffles 015 is 18.6 mm, a bottom surface of the baffle 015 is an arc surface, a radius R of the arc surface is 125 mm, and a glare value UGR is less than or equal to 19; the glare value is reduced to 19 or below, and the method can be used for meeting the requirements of offices, laboratories and the like, the requirements of different places can be met only by changing the shape and the structure of the curved body 014, and the parts of other parts have unchanged structures, are more universal and have strong practicability;

furthermore, a first countersunk hole 0203 is formed in one circle on the inner side of the edge of the lower surface of the lens plate 020, and a first through hole 0204 is formed in one side of the first countersunk hole 0203; a first threaded hole 0220 corresponding to the first countersunk hole 0203 is formed in the lamp body 022, a second threaded hole 0221 corresponding to the first through hole 0204 is formed in one side of the first threaded hole 0220, the screw 03 is a countersunk screw 03, and the countersunk screw 03 is screwed into the first countersunk hole 0203 to be fixed with the first threaded hole 0220; the first male buckle 016 penetrates through the first through hole 0204 and the second through hole 0221 to form buckle connection; the lower surface of the lens plate 020 can be ensured to be flat by using the countersunk head screw 03 for connection, the grid 013 cannot be extruded, and damage is avoided;

furthermore, two first clamping grooves 0205 are formed by the inner side of the edge of the upper surface of the lens plate 020 in a concave manner, a first clamping strip 0222 for filling the first clamping grooves 0205 is formed by the lower surface of the lamp body 022 in a convex manner, and the countersunk head screw 03 and the first male buckle 016 both pass through the first clamping grooves 0205; the lens plate 020 and the lamp body 022 are spliced together in a first clamping groove 0205 and a first clamping strip 0222 mode, so that a pre-assembling fixing effect can be achieved, the lens plate 020 and the lamp body 022 can be prevented from being easily separated after assembly is completed, the connection between the lens plate 020 and the lamp body 022 is firmer, and the first clamping groove 0205 and the first clamping strip 0222 play a role in blocking movement in a direction perpendicular to the extending direction;

the waterproof LED lamp further comprises an annular sealing ring 04, wherein the periphery of the first concave pit 0201 on the upper surface of the lens plate 020 is sunken to form an annular third concave pit 0206, the sealing ring 04 is embedded into the third concave pit 0206 and is extruded by the lamp body 022 to form the first concave pit 0201 for sealing, the sealing ring 04 is clamped by the lens plate 020 and the lamp body 022 to play a role in sealing, the L ED lamp plate 021 has a waterproof effect, the waterproof LED lamp further comprises a waterproof connector 05, the upper surface of the lamp body 022 is in threaded connection with the waterproof connector 05, a wire on the L ED lamp plate 021 penetrates through the waterproof connector 05 to play a role in waterproof, the practicability is higher, a reinforcing plate is connected between the first male buckle 016 and the grid 013, the lens plate 020 is pressed on the outer reinforcing plate, and the reinforcing plate provides the strength of the first male buckle 016;

four corners of the eighth plate body 010 are provided with first connecting columns 017 which are hollow inside; the foldable plate is characterized by further comprising a supporting frame 06, the supporting frame 06 is U-shaped, the supporting frame 06 comprises a ninth plate body 060, two edges of the ninth plate body 060 are bent to form a tenth plate body 061, two ends of the ninth plate body 060 respectively penetrate through bolts to be connected and fixed with first connecting columns 017 on two spliced eighth plate bodies 010, and the tenth plate body 061 clamps the folded plate 011; the support frame 06 is connected to the first connecting columns 017 of the two housings 01, so that the connecting firmness between the housings 01 is improved;

a use method of a ceiling type mold grid L ED classroom lamp comprises the following steps:

(1) the first section bar 10 and the second section bar 11 are made of aluminum section bars, the connecting piece 12 is inserted into the first section bar 10 for fixing, the first section bar 10 is spliced into a first outer frame, the corner connector is inserted into the second section bar 11 for fixing, and the second section bar 11 is spliced into a second outer frame;

(2) l ED lamp groups 02 are assembled and installed on a housing 01, grids 013 with different specifications are selected according to different place requirements, the housing 01 is spliced according to the number and the size of rear covers, and the spliced housing 01 is fixed on a first outer frame;

(3) the teaching room lamp is characterized in that the second outer frame is fixed on a wall body at the top of a classroom, and the connecting piece 12 on the first outer frame is hooked on the second outer frame to form fixation, and the original lamp is imported, high-color-rendering-index low-blue light L ED and blue light hazard grade RG1 are used, so that the teaching room lamp is easy to achieve low flicker, low blue light, low glare, low harmonic and high protection grade '4 low 1 high'.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, refer to orientations or positional relationships that are based on the orientations or positional relationships shown in the drawings, or the orientations or positional relationships that the products of the present invention are conventionally placed in use, or the orientations or positional relationships that are conventionally understood by those skilled in the art, and are used for convenience in describing and simplifying the description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims (10)

1. A ceiling type mould grid L ED classroom lamp is characterized by comprising a first outer frame formed by splicing four first section bars end to end and a second outer frame formed by splicing four second section bars end to end, wherein the first outer frame and the second outer frame are arranged in parallel and are connected through a connecting piece;

the first section comprises a vertical first plate body, the side wall of the first plate body protrudes to form a first slot, the bottom edge of the first slot protrudes to form a second plate body, the top of the first slot is sunken to form a second slot in the shape of an inverted convex, and the side wall of the second slot extends out of a third plate body;

the second section bar comprises a vertical fourth plate body, a screw is connected to the fourth plate body in a threaded manner, a fifth plate body extends outwards from the top edge of the fourth plate body, and the fifth plate body is fixed on the wall body;

the connecting piece comprises a sixth plate body, the sixth plate body is used for being inserted into the second clamping groove to be fixed, a seventh plate body is arranged on the sixth plate body, a notch is formed in the edge of the seventh plate body, a strip-shaped clamping groove extends downwards from the notch, and a screw penetrates through the notch to be clamped in the strip-shaped clamping groove to be fixed, so that the first outer frame is connected with the second outer frame;

the LED lamp also comprises a cover shell and an L ED lamp group which is arranged on the cover shell and used for lighting, wherein the cover shell is erected on the second plate body, and the back plate is fixed on the third plate body.

2. The ceiling type mold L ED classroom lamp as claimed in claim 1, wherein the inner surfaces of the top wall and the two side walls of the first slot are protruded with a ring-shaped second connecting column;

the corners comprise L-shaped main bodies, a front wall of the L-shaped main body is opened, two side walls of the L-shaped main body are respectively attached to the end surfaces of the two adjacent first section bars, and the two side walls of the L-shaped main body pass through bolts to be connected and fixed with the second connecting column;

the lower surface of the fifth plate body is provided with a third clamping groove, and two adjacent second profiles are inserted into the corresponding third clamping grooves through corner connectors to be fixed.

3. The ceiling type mold L ED classroom lamp as claimed in claim 1, wherein the cover includes an eighth plate, four sides of the eighth plate are folded to form a folded plate, four folded plates are respectively provided with a second male buckle with outward buckle heads, the second male buckles on the two folded plates are arranged in a staggered manner, and two adjacent covers are spliced by buckling the corresponding second male buckles into the folded plates;

the eighth plate body is sunken to form a grid, the grid comprises a horn-shaped curved surface body, the top surface and the bottom surface of the curved surface body are both provided with openings with oval cross sections, a plurality of baffles with uniform intervals are arranged inside the curved surface body, and the outer surface of the top of the curved surface body protrudes out of four first male buckles which are connected into a rectangle;

the L ED lamp group comprises a lens plate, a L ED lamp plate and a lamp body, wherein a plurality of hemispherical protrusions with uniform intervals protrude from the lower surface of the lens plate, two adjacent hemispherical protrusions are separated by a baffle, a first pit is formed in the upper surface of the lens plate in a concave mode, the L ED lamp plate is embedded into the first pit for fixing, a second pit for placing lamp beads on the L ED lamp plate is formed in the concave mode of the upper surface of the hemispherical protrusions, a screw penetrates through the lens plate to be fixedly connected with the lamp body, the lamp body and the lens plate clamp the L ED lamp plate, and a first male buckle penetrates through the lens plate and the lamp body to form buckle connection.

4. The ceiling type mold L ED classroom lamp as claimed in claim 3, wherein the first slot has a downwardly opening fourth slot protruding from the middle thereof, the second male buckle has a buckle head fastened into the fourth slot for fixation, and the ceiling type mold L ED classroom lamp further comprises a lining, the lining is a L-shaped shell, and the lining is sleeved on the outer surface of the corner.

5. The ceiling type mold L ED classroom lamp as claimed in claim 3, wherein the angle between the two side walls of the curved body is 90 degrees, the distance between two adjacent baffles is 18.6 mm, the bottom surface of the baffle is a cambered surface, the radius of the cambered surface is 42 mm, and the glare value UGR is less than or equal to 16.

6. The ceiling type mold L ED classroom lamp as claimed in claim 3, wherein the angle between the two side walls of the curved body is 135 degrees, the distance between two adjacent baffles is 18.6 mm, the bottom surface of the baffle is a curved surface, the radius of the curved surface is 125 mm, and the glare value UGR is less than or equal to 19.

7. The ceiling type mold L ED classroom lamp as claimed in claim 3, wherein the lens plate has a first countersunk hole formed in a circle inside the lower surface edge, a first through hole formed in one side of the first countersunk hole, the lamp body has a first threaded hole corresponding to the first countersunk hole, a second through hole corresponding to the first through hole is formed in one side of the first threaded hole, the screw is a countersunk screw, the countersunk screw is screwed into the first countersunk hole and fixed to the first threaded hole, and the first male buckle passes through the first through hole and the second through hole to form a snap connection.

8. The ceiling type mold L ED classroom lamp as claimed in claim 7, wherein the upper surface of the lens plate is recessed along the inside to form two first engaging grooves, the lower surface of the lamp body is protruded to form a first engaging strip filling the first engaging grooves, and the countersunk head screw and the first male buckle are both inserted into the first engaging grooves.

9. The ceiling type mold L ED classroom lamp as claimed in claim 3, wherein the lamp further comprises an annular sealing ring, a third annular concave pit is formed by the circumference of the first concave pit on the upper surface of the lens plate, the sealing ring is embedded into the third concave pit and is pressed by the lamp body to form the first concave pit seal, the lamp further comprises a waterproof connector, and the upper surface of the lamp body is connected with the waterproof connector in a threaded manner.

10. A use method of a ceiling type mold grid L ED classroom lamp is characterized by comprising the following steps:

(1) the first section bar and the second section bar are made of aluminum section bars, the connecting piece is inserted into the first section bar, the first section bar is spliced into a first outer frame, and the second section bar is spliced into a second outer frame;

(2) the L ED lamp group is assembled and installed on the housing, grids with different specifications are selected according to different place requirements, the housing is spliced according to the size of the rear cover, and the spliced housing is fixed on the first outer frame;

(3) the second outer frame is fixed on a wall body at the top of a classroom, and the connecting piece on the first outer frame is hooked on the second outer frame to form fixation.

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