Marker lamp

Abstract

The utility model provides a marker lamp. The marker lamp comprises a rear shell; the light guide plate is accommodated in the rear shell, a graphic display area is arranged on one side, facing the rear shell, of the light guide plate, and an accommodating groove is concavely formed in the other side of the light guide plate; the light source assembly is arranged in the accommodating groove; and the front cover plate is detachably assembled with the rear shell and the light guide plate through a buckle structure so as to limit the axial positioning of the light source assembly in the accommodating groove. Compared with the prior art, according to the marker lamp, the graph display area and the containing groove are arranged on the two sides of the light guide plate respectively, so that different patterns can be printed in the graph display area in a silk-screen mode, the fire-fighting indication function is achieved, and the light source assembly can be installed in the containing groove to serve as a fixed bearing piece of the light source assembly. The problems that an existing marker lamp is thick in overall design and high in cost are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire emergency lighting and evacuation indicating system, especially sign lamp. BACKGROUND

[0002] Evacuation sign lamp is an important component of emergency evacuation system, mainly applied to factory, hotel, school and residential building, its main function is to provide accurate evacuation guide information for people in fire or other emergency situation. According to the different indication information of sign lamp, sign lamp can be divided into exit sign lamp, direction sign lamp, floor sign lamp and multi-information composite sign lamp several categories.

[0003] At present, the light guide plate and the light source plate of the evacuation sign lamp on the market are all installed in the rear cover, such design makes the rear cover must have enough supporting force, leading to the rear cover design is generally thick, the thickness of the sign lamp cannot be reduced, and the cost of the whole sign lamp is high.

[0004] Therefore, it is necessary to improve the existing sign lamp to solve the above problems. UTILITY MODEL CONTENT

[0005] The utility model discloses a sign lamp, the light guide plate of the sign lamp is the fixed bearing piece of light source assembly, light guide and light emitting piece, and is also the key piece for realizing fire-fighting indication function of silk screen different patterns, solve the problem of thick overall design and high cost of the existing sign lamp.

[0006] In order to achieve the above object, the utility model provides a sign lamp, comprising:

[0007] Rear shell body;

[0008] Light guide plate is contained in rear shell body, and the side of light guide plate towards rear shell body is equipped with graphic display area, and the other side is recessed with containing groove;

[0009] Light source assembly is placed in containing groove;And

[0010] Front cover plate is detachably assembled with rear shell body and light guide plate through buckle structure, so as to limit the axial positioning of light source assembly in containing groove.

[0011] Optionally, the light source assembly includes a light source plate and a lamp bead integrated on the light source plate, and the containing groove is provided with an optical diffusion structure located in the light emitting direction of the lamp bead.

[0012] Optionally, the lamp bead emits light in a straight-down type in the containing groove, and the optical diffusion structure is an arc surface provided on the inner wall surface of the containing groove.

[0013] Optionally, the containing groove is a long groove, and the two ends of the containing groove are provided with positioning pieces, and the two ends of the light source plate are assembled in the positioning pieces.

[0014] Optionally, the marker lamp further comprises a power cord, the receiving groove is provided with a wire outlet hole penetrating through the light guide plate, and the first end of the power cord is electrically connected with the light source assembly and the second end penetrates through the wire outlet hole.

[0015] Optionally, the rear shell is provided with a receiving portion corresponding to the position of the wire outlet hole, the power cord is provided with a clamping piece, and the power cord enters the receiving portion after penetrating through the wire outlet hole, and the clamping piece is clamped and fixed in the receiving portion.

[0016] Optionally, the receiving portion comprises a receiving groove and a through groove communicating with the outside, the clamping piece is fixed in the receiving groove, and the second end of the power cord extends out of the rear shell through the through groove.

[0017] Optionally, the buckle structure comprises:

[0018] a first clamping portion and a second clamping portion arranged on the front cover plate;

[0019] corresponding first and second buckling portions arranged on the rear shell, and the light guide plate is provided with a through hole corresponding to the position of the second buckling portion;

[0020] wherein the first clamping portion and the first buckling portion are clamped and matched with each other, and the second clamping portion penetrates through the through hole and is clamped and matched with the second buckling portion.

[0021] Optionally, the side of the rear shell away from the light guide plate is provided with a mounting surface and a supporting surface, the mounting surface and the supporting surface are staggered and parallel to each other, and the supporting surface is provided with a hanging portion, and the outer wall surface of the hanging portion is coplanar with the mounting surface.

[0022] Optionally, the light guide plate is a transparent plastic piece, and the graphic display area is provided with an indication icon formed by silk printing.

[0023] The beneficial effects of the utility model are: the marker lamp of the utility model sets a graphic display area on the side of the light guide plate facing the rear shell and recesses a receiving groove on the other side, so that different patterns can be printed on the graphic display area, the fire-fighting indication function is realized, the light source assembly can be installed in the receiving groove as a fixed bearing of the light source assembly, and the problems of thick overall design and high cost of the existing marker lamp are solved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is the perspective view of the marker lamp of the utility model.

[0025] Figure 2 is Figure 1 the exploded view.

[0026] Figure 3 is Figure 2 the structural schematic view of the rear shell.

[0027] Figure 4 is Figure 3Partial enlarged view of the middle circle.

[0028] Figure 5 is Figure 3 Another angle view of the rear shell.

[0029] Figure 6 is Figure 5 Partial enlarged view of the middle circle.

[0030] Figure 7 is Figure 2 Structure view of the middle light guide plate.

[0031] Figure 8 is Figure 7 Partial enlarged view of the middle circle.

[0032] Figure 9 is Figure 2 Structure view of the middle light source assembly.

[0033] Figure 10 is Figure 2 Structure view of the middle power cord.

[0034] Figure 11 is Figure 10 Structure view of the middle power cord after being installed to the rear shell.

[0035] Figure 12 is Figure 2 Structure view of the middle front cover plate.

[0036] Figure 13 is Figure 5 Another angle view of the rear shell.

[0037] Reference signs:

[0038] 100 - marker light; 10 - rear shell, 101 - installation surface, 102 - support surface, 103 - hanging part, 11 - first accommodating cavity, 110 - fixing shaft, 111 - positioning column, 12 - second accommodating cavity, 13 - accommodating part, 131 - accommodating groove, 1311 - first accommodating groove, 1312 - second accommodating groove, 132 - through groove, 1321 - first through groove, 1322 - second through groove, 14 - first buckling part, 15 - second buckling part; 20 - light guide plate, 202 - receiving groove, 203 - optical diffusion structure, 21 - fixing hole, 22 - positioning hole, 23 - positioning member, 24 - wire outlet hole, 25 - through hole; 30 - light source assembly, 31 - light source plate, 311 - opening, 32 - lamp bead; 40 - front cover plate, 41 - first clamping part, 42 - second clamping part; 50 - power cord, 51 - clamping member, 511 - first clamping member, 512 - second clamping member; 60 - locking member. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model will be described in detail below in combination with the drawings and specific embodiments.

[0040] As Figure 1 and Figure 2 shown, the utility model discloses a marker light 100, including rear housing 10, light guide plate 20, light source assembly 30, front cover plate 40 and power cord 50. Among them, light guide plate 20 is contained in rear housing 10, light source assembly 30 is contained in light guide plate 20, and front cover plate 40 is assembled with rear housing 10 and light guide plate 20 simultaneously, and power cord 50 is used to connect commercial power and light source assembly 30, and power supply is provided for light source assembly 30.

[0041] As Figures 3 to 6 shown, rear housing 10 is arranged as a whole rectangular, including oppositely arranged front and back. Among them, light guide plate 20 is installed on the front of rear housing 10, and the back of rear housing 10 is used to be attached to and fixed with the wall. Optionally, the back of rear housing 10 (i.e. the side away from light guide plate 20) is provided with mounting surface 101 and support surface 102, and the mounting surface 101 and the support surface 102 are mutually staggered and parallel. In other words, in the thickness direction of rear housing 10, mounting surface 101 is located on the outside, and support surface 102 is located on the inside, so that when assembling, mounting surface 101 can be attached to the wall, and a gap is left between support surface 102 and the wall for power cord 50 wiring.

[0042] Mounting surface 101 and support surface 102 are both planes. Support surface 102 is provided with a hanging part 103, and the outer wall surface of hanging part 103 is coplanar with mounting surface 101. In this way, rear housing 10 can be installed and fixed on the wall by using hanging part 103, and at the same time, mounting surface 101 can be attached to the wall, ensuring that marker light 100 can be stably fixed on the wall. Optionally, two groups of hanging parts 103 are provided, and the hanging part 103 located in the middle can be used to install an electrical box, realizing the electrification of power cord 50; the hanging part 103 located at both ends is used to realize the installation and fixation with the wall.

[0043] As Figure 2 , Figure 5 and Figure 7 shown, the front side of rear housing 10 is recessed with first accommodating cavity 11 and second accommodating cavity 12 arranged in an up-down manner, and the recess depth of first accommodating cavity 11 is greater than that of second accommodating cavity 12. The top two ends of first accommodating cavity 11 and the bottom two ends of second accommodating cavity 12 are both provided with fixed shaft 110, and four corners of light guide plate 20 are correspondingly provided with fixed hole 21, so that fixed shaft 110 can be inserted into fixed hole 21 to realize the pre-fixing between light guide plate 20 and rear housing 10.

[0044] The bottom of the first accommodating cavity 11 is provided with positioning columns 111, and the light guide plate 20 is correspondingly provided with positioning holes 22, so that the light guide plate 20 and the rear shell 10 can be locked and fixed by the locking member 60 penetrating through the positioning holes 22 and the positioning columns 111. Preferably, the locking member 60 is a screw, and the positioning column 111 is a hollow screw fixing column.

[0045] The side of the light guide plate 20 facing the rear shell 10 is provided with a graphic display area (not numbered), and the other side is recessed with a receiving groove 202. The graphic display area is provided with an indicating icon formed by silk printing, such as a fire-fighting indicating icon. In the embodiment, the light guide plate 20 is a transparent plastic part, and is preferably formed by transparent impact-resistant plastic by injection molding process, which not only has the advantages of simple molding and large-scale production, but also enhances the impact resistance of the light guide plate 20. Optionally, the rear shell 10, the light guide plate 20 and the front cover plate 40 can all be made of transparent impact-resistant plastic parts to further enhance the overall impact resistance of the marker light 100 to meet the impact resistance requirements of the new national standard.

[0046] In addition, the light guide plate 20 is made of a plastic part, which also facilitates silk printing of the fire-fighting indicating icon in the graphic display area. Various different fire-fighting indicating icons can be displayed by silk printing, and different silk printing jigs can be used to realize different marking functions, meeting the requirements of low fixed investment, rapid customization of different varieties and the like. In other words, the pattern required by the marker light 100 can be directly printed on the back of the light guide plate 20 using white ink, and different patterns only need to replace the silk printing jigs to customize the marker light 100 with different functions, solving the problem of different molds and manpower required for different marker lights 100.

[0047] As shown in Figures 7 to 9 The top of the light guide plate 20 protrudes into the first accommodating cavity 11 of the rear shell 10 to form a recessed receiving groove 202 on the side away from the rear shell 10. Preferably, the receiving groove 202 is a semi-closed long groove, and both ends of the receiving groove 202 are provided with positioning members 23. The light source assembly 30 is placed in the receiving groove 202, including a light source plate 31 and a lamp bead 32 integrated on the light source plate 31, and both ends of the light source plate 31 are assembled to the positioning members 23. In the embodiment, the positioning member 23 is a positioning shaft, and both ends of the light source plate 31 are provided with openings 311, and the positioning shaft penetrates through the openings 311 to fix the light source plate 31 during assembly.

[0048] The receiving slot 202 also includes an optical diffusion structure 203 positioned in the light-emitting direction of the LED 32. Optionally, the LED 32 is located at the bottom of the light source plate 31 and emits light directly downwards within the receiving slot 202. The optical diffusion structure 203 is an arc-shaped surface disposed on the inner wall of the receiving slot 202. In this embodiment, multiple LEDs 32 are provided, and multiple optical diffusion structures 203 are correspondingly provided. Each optical diffusion structure 203 covers the light-emitting surface of the corresponding LED 32, thus enabling better and more uniform light dispersion.

[0049] The receiving slot 202 also has an outlet hole 24 that passes through the light guide plate 20. The first end of the power cord 50 is electrically connected to the light source assembly 30, and the second end passes through the outlet hole 24. Optionally, to enhance the waterproof effect of the marker light 100, the outlet hole 24 can be appropriately sealed after the power cord 50 is soldered, and then transparent sealant can be poured into the receiving slot 202 to seal the light source assembly 30. In other words, the receiving slot 202 can both house the light source assembly 30 and be filled with transparent sealant to seal and waterproof the light source assembly 30. Of course, the sealant used must be light-transmitting.

[0050] In this embodiment, the light guide plate 20 is not only a fixed support, a potting support, and a light guiding and emitting component of the light source assembly 30, but also a key component for screen printing different patterns to realize the fire indication function.

[0051] like Figures 3 to 6 and Figure 10 As shown, the rear housing 10 has a receiving portion 13 corresponding to the cable outlet 24. The power cord 50 has a snap-fit ​​member 51. The power cord 50 passes through the cable outlet 24 and enters the receiving portion 13, so that the snap-fit ​​member 51 is snapped and fixed in the receiving portion 13. Optionally, the receiving portion 13 includes a receiving groove 131 and a through groove 132 that connects the receiving groove 131 to the outside. The snap-fit ​​member 51 is fixed in the receiving groove 131, and the second end of the power cord 50 passes through the through groove 132 and extends out of the rear housing 10.

[0052] Optionally, the receiving portion 13 is disposed at the connection between the first receiving cavity 11 and the second receiving cavity 12, and the receiving groove 131 communicates with the first receiving cavity 11 and is recessed from the first receiving cavity 11 toward the second receiving cavity 12. In this embodiment, the receiving groove 131 is convex in shape, including a first receiving groove 1311 near the second receiving cavity 12 and a second receiving groove 1312 near the first receiving cavity 11, wherein the size of the first receiving groove 1311 is smaller than the size of the second receiving groove 1312. The through groove 132 includes a first through groove 1321 communicating with the first receiving groove 1311 and a second through groove 1322 communicating with the second receiving groove 1312, wherein the first through groove 1321 extends along the width direction (i.e., the height direction) of the rear housing 10 to the back surface of the rear housing 10, and the second through groove 1322 extends along the thickness direction of the rear housing 10.

[0053] The clamping member 51 is integrally injection molded with the outer sheath of the power cord 50. The clamping member 51 is also in the shape of a convex letter, and includes a first clamping member 511 and a second clamping member 512, both of which are cuboid structures, and the volume of the first clamping member 511 is smaller than that of the second clamping member 512. In combination Figure 11 As shown, during assembly, the second clamping member 512 is embedded in the second accommodating groove 1312 and partially embedded in the second through groove 1322, the first clamping member 511 is embedded in the first accommodating groove 1311, and the second end of the power cord 50 passes out of the first through groove 1321 and is located in the gap between the support surface 102 of the rear shell 10 and the wall. In this way, not only can the clamping member 51 be stably limited in the accommodating portion 13, ensuring that the power cord 50 cannot be pulled out or pushed into the interior of the marker light 100, but also facilitates the routing of the power cord 50.

[0054] As Figure 12 and Figure 5 , Figure 7 , Figure 8 , Figure 13 As shown, the front cover plate 40 is detachably assembled with the rear shell 10 and the light guide plate 20 through a buckle structure to define the axial positioning of the light source assembly 30 in the accommodating groove 202. Optionally, the buckle structure includes the first clamping portion 41 and the second clamping portion 42 arranged in an up-down manner on the front cover plate 40, and the first buckling portion 14 and the second buckling portion 15 arranged in an up-down manner on the rear shell 10 in a corresponding manner, and the light guide plate 20 is provided with a through hole 25 at a position corresponding to the second buckling portion 15. During assembly, the first clamping portion 41 and the first buckling portion 14 are clamped and matched with each other, and the second clamping portion 42 passes through the through hole 25 and is clamped and matched with the second buckling portion 15.

[0055] In this embodiment, the first clamping portion 41 and the second clamping portion 42 are buckles, the first buckling portion 14 is a clamping groove provided on the top of the rear shell 10, and the second buckling portion 15 is a via hole. During assembly, the first clamping portion 41 (buckle) is inserted into the first buckling portion 14 (clamping groove) and clamped with the inner wall surface of the first buckling portion 14 (clamping groove), and the second clamping portion 42 (buckle) passes through the through hole 25 and the second buckling portion 15 (via hole) in sequence and is clamped with the support surface 102. In this way, the fixation among the front cover plate 40, the light guide plate 20, and the rear shell 10 can be achieved.

[0056] The utility model discloses a sign lamp 100 when assembling, first the power cord 50 passes the outgoing line hole 24 on the light guide plate 20, and the first end of power cord 50 is welded on the light source plate 31, then, the light source plate 31 of welding power cord 50 is fixed in the accommodation groove 202 of light guide plate 20, again, the clamping piece 51 on power cord 50 is fixed in the containing groove 131 of rear shell 10, and the second end of power cord 50 is from first through groove 1321 and is taken out rear shell 10, then, again use locking piece 60 and lock light guide plate 20 in rear shell 10, finally, cover front cover plate 40, and it is assembled.

[0057] In conclusion, the utility model discloses a sign lamp 100 through setting up graphic display area on the side of light guide plate 20 to rear shell 10, and the other side recessed with accommodation groove 202, thereby can print different patterns in graphic display area, realizes fire control instruction function, also can install light source assembly 30 in accommodation groove 202, as the fixed bearing of light source assembly 30, has solved the problem of the overall design of the prior art sign lamp 100 thick, high cost.

[0058] The above embodiment is only used to illustrate the technical scheme of the utility model and is not limited, and although the utility model is described in detail with reference to the preferred embodiment, those skilled in the art should understand that the technical scheme of the utility model can be modified or replaced equivalently without departing from the spirit and scope of the technical scheme of the utility model.

Claims

1. A marker light, characterized in that, include: Rear housing (10); A light guide plate (20) is housed in the rear housing (10). The light guide plate (20) has a graphic display area on one side facing the rear housing (10) and a receiving groove (202) on the other side. The light source assembly (30) is placed within the receiving slot (202); and The front cover (40) is detachably assembled with the rear housing (10) and the light guide plate (20) by means of a snap-fit ​​structure to define the axial positioning of the light source assembly (30) in the receiving groove (202).

2. The sign light according to claim 1, characterized in that, The light source assembly (30) includes a light source plate (31) and an LED bead (32) integrated on the light source plate (31). The receiving slot (202) is provided with an optical diffusion structure (203) located in the light emission direction of the LED bead (32).

3. The sign light according to claim 2, characterized in that, The lamp bead (32) emits light directly into the receiving groove (202), and the optical diffusion structure (203) is an arc surface provided on the inner wall of the receiving groove (202).

4. The sign light according to claim 2, characterized in that, The receiving slot (202) is a long slot, and both ends of it are provided with positioning parts (23). The two ends of the light source plate (31) are assembled to the positioning parts (23).

5. The sign light according to claim 1, characterized in that, The indicator light (100) also includes a power cord (50), and the receiving slot (202) has an outlet hole (24) that passes through the light guide plate (20). The first end of the power cord (50) is electrically connected to the light source assembly (30), and the second end passes through the outlet hole (24).

6. The marker light according to claim 5, characterized in that, The rear housing (10) is provided with a receiving part (13) corresponding to the position of the outlet hole (24). The power cord (50) is provided with a snap-fit ​​part (51). The power cord (50) passes through the outlet hole (24) and enters the receiving part (13). The snap-fit ​​part (51) is snapped and fixed in the receiving part (13).

7. The sign light according to claim 6, characterized in that, The receiving part (13) includes a receiving groove (131) and a through groove (132) that connects the receiving groove (131) to the outside. The snap-fit ​​member (51) is fixed in the receiving groove (131), and the second end of the power cord (50) extends out of the rear housing (10) through the through groove (132).

8. The sign light according to claim 1, characterized in that, The snap-fit ​​structure includes: A first retaining part (41) and a second retaining part (42) are provided on the front cover plate (40); Corresponding to the first fastening part (14) and the second fastening part (15) provided on the rear housing (10), the light guide plate (20) is provided with a through hole (25) at the position corresponding to the second fastening part (15); The first holding part (41) and the first fastening part (14) are engaged with each other, and the second holding part (42) passes through the through hole (25) and engages with the second fastening part (15).

9. The sign light according to claim 1, characterized in that, The rear housing (10) has a mounting surface (101) and a support surface (102) on the side away from the light guide plate (20). The mounting surface (101) and the support surface (102) are offset from each other and parallel. The support surface (102) has a hanging part (103), and the outer wall surface of the hanging part (103) is coplanar with the mounting surface (101).

10. The sign light according to claim 1, characterized in that, The light guide plate (20) is a transparent plastic part, and the graphic display area is provided with silkscreened indicator icons.

Images