Explosion-proof marker lamp

Abstract

The utility model discloses an anti-explosion marker lamp which comprises a shell, a front cover, a first marker panel and a second marker panel. The shell is of a hollow structure with the two ends open, the rear end of the shell is provided with an installation flange extending inwards, the front cover is of a structure with the middle penetrating through, and the front cover is installed at the position of the opening in the front of the shell. And the outer edge parts of the first sign panel and the second sign panel are respectively connected to the inner side of the front cover and the inner side of the mounting flange. The double-sided display device can realize double-sided display, and has the advantages of simple and reliable structure, small volume and lower production cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sign lamp technical field, especially a kind of explosion-proof sign lamp. BACKGROUND

[0002] The main function of explosion-proof sign lamp is to provide lighting in dangerous environment, while ensuring that no explosion or fire is caused. Explosion-proof sign lamp is widely used in oil exploitation, chemical industry, military industry and other dangerous environments and oil tanker and other places, as safety exit indication or safety evacuation guide indication lighting in power failure emergency. The protection level is IP65, with dustproof and waterproof functions.

[0003] At present, the structure of explosion-proof sign lamp on the market usually includes back shell, front cover and sign panel, the back shell is hollow and the front end is open, the back is closed, the front cover is through the middle structure, the front cover is installed in the opening end of back shell, and the sign panel is installed in the inner side of front cover. The explosion-proof sign lamp can only display on one side. For occasions that need double-sided display (such as hanging in the air or high place), the current method is to make two sets of molds, and connect the back of the two sets of molds together. It not only has large volume, but also has high production cost. Therefore, it is necessary to design a double-sided display explosion-proof sign lamp with reasonable structure to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of explosion-proof sign lamp, the utility model can double-sided display, with the advantages of simple and reliable structure, small volume and lower production cost.

[0005] To achieve the above object, the utility model provides the following technical scheme: explosion-proof sign lamp, including shell, front cover, first sign panel and second sign panel;The shell is hollow and both ends are open structure, the rear end of the shell is provided with inwardly extending mounting flange, the front cover is through the middle structure, the front cover is installed in the front opening of shell, and the outer edge part of first sign panel and second sign panel is connected to the inner side of front cover and the inner side of mounting flange respectively.

[0006] By adopting the above technical scheme, the back of shell is connected and mounting flange is reserved, second sign panel is installed on the mounting flange, and first sign panel is connected on the front cover unchanged, so as to realize double-sided display of explosion-proof sign lamp, which is simple and reliable in structure, without making two sets of molds, with the advantages of small volume and lower production cost.

[0007] The utility model further sets up, first sign panel is connected with the front cover through locking assembly, the locking assembly includes the press ring and a plurality of locking screw, the front cover inside is provided with a plurality of quantity with locking screw's screw hole, the press ring is abutted with first sign panel inside, and a plurality of quantity with locking screw's through -hole is equipped on the press ring, the screw rod part of locking screw is passed through the corresponding through -hole and is connected with the corresponding screw hole in the screw, the screw head part of locking screw is abutted with the press ring inside, the connecting mode of second sign panel with the mounting flange is same with the connecting mode of first sign panel with the front cover.

[0008] Through adopting above technical scheme, a plurality of locking screws press the press ring on first sign panel, so that first sign panel is pressed in the inside of front cover, realize the locking connection of first sign panel, and its connecting structure is simple and reliable, locking screw and first sign panel are connected through the transition of press ring, so that the force of each part of first sign panel edge is more uniform, and the locking effect is better, and the connecting structure of second sign panel and mounting flange also has the above effect.

[0009] The utility model further sets up, the inside of front cover is provided with a plurality of quantity with screw hole's mounting protruding, a plurality of mounting protruding are set up around the outer periphery of first sign panel, and the height of mounting protruding is equivalent with the thickness of first sign panel, the screw hole is set up on the corresponding mounting protruding, the outer periphery of press ring is provided with a plurality of quantity with through -hole's connecting protruding, the connecting protruding is abutted on the corresponding mounting protruding, and the through -hole is set up on the corresponding connecting protruding.

[0010] Through adopting above technical scheme, the mounting protruding can support the connecting protruding, and the mounting protruding is set up on the outer periphery of first sign panel, so that it can be prepositioned, and it is more convenient to install.

[0011] The utility model further sets up, the screw head part of locking screw and the mounting protruding are clamped with gasket.

[0012] Through adopting above technical scheme, the gasket can prevent the locking screw from loosening.

[0013] The utility model further sets up, the outer edge of press ring is provided with a plurality of positioning bending, and the positioning bending is abutted with the outer periphery of first sign panel.

[0014] Through adopting above technical scheme, the positioning bending is set up on the press ring and is abutted with the outer periphery of first sign panel, so that first sign panel can be positioned, and the accuracy of installation position and the firmness of installation structure are improved.

[0015] The utility model further sets up, the inside of front cover is equipped with the first annular seal groove, be equipped with first sealing ring for with first sign panel constitutes sealed cooperation in the first annular seal groove, the inside of mounting flange is equipped with the second annular seal groove, be equipped with second sealing ring for with second sign panel constitutes sealed cooperation in the second annular seal groove.

[0016] By adopting the above technical scheme, reliable sealing between the front cover and the first sign panel and between the mounting flange and the second sign panel can be effectively ensured.

[0017] The utility model further sets up, the shell and front cover are connected together through fastener, and one end of front cover near shell is equipped with the third annular seal groove, be equipped with third sealing ring in the third annular seal groove, one end of shell near front cover is equipped for extruding the convex rib of the extrusion cooperation of being inserted into the third annular seal groove and with third sealing ring.

[0018] By adopting the above technical scheme, reliable sealing between the shell and the front cover can be effectively ensured.

[0019] The utility model further sets up, the outer surface of shell and front cover is all equipped with a plurality of heat dissipation grooves.

[0020] By adopting the above technical scheme, the contact area of the outer surface of the shell and the front cover with air is increased, so that the heat dissipation area is increased, and the heat dissipation effect is improved, and the service life of the explosion-proof sign lamp can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the overall structural schematic view of the utility model;

[0022] Figure 2 It is the overall sectional view of the utility model;

[0023] Figure 3 It is Figure 2 It is the enlarged structural schematic view of A part;

[0024] Figure 4 It is the structural schematic view of the shell of the utility model;

[0025] Figure 5 It is the structural schematic view of the pressing ring of the utility model.

[0026] In the diagram: 1. Housing; 2. Front cover; 3. First marking panel; 4. Second marking panel; 5. Mounting flange; 6. Pressure ring; 7. Locking screw; 8. Screw hole; 9. Through hole; 10. Mounting protrusion; 11. Connecting protrusion; 12. Gasket; 13. Positioning bend; 14. First annular sealing groove; 15. First sealing ring; 16. Second annular sealing groove; 17. Second sealing ring; 18. Third annular sealing groove; 19. Third sealing ring; 20. Extruded rib; 21. Heat dissipation groove. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example: As attached Figures 1-5 The explosion-proof sign light shown includes a housing 1, a front cover 2, a first sign panel 3, and a second sign panel 4. The housing 1 is hollow and open at both ends. A mounting flange 5 extending inwards is provided at the rear end of the housing 1. The front cover 2 is a through-type structure and is installed at the front opening of the housing 1. The outer edges of the first sign panel 3 and the second sign panel 4 are respectively connected to the inner side of the front cover 2 and the inner side of the mounting flange 5. The front cover 2 functions similarly to the mounting flange 5, except that the mounting flange 5 and the housing 1 are an integral structure, while the front cover 2 and the housing 1 are separate structures. By making the back of the housing 1 open and pre-installing the mounting flange 5, the second sign panel 4 is installed on the mounting flange 5, while the first sign panel 3 remains connected to the front cover 2. This achieves double-sided display of the explosion-proof sign light. Its structure is simple and reliable, eliminating the need for two sets of molds, and has the advantages of small size and lower production cost.

[0029] As attached Figure 3As shown, the first sign panel 3 is connected with the front cover 2 through a locking assembly, the locking assembly comprises a pressing ring 6 and a plurality of locking screws 7, the inside of the front cover 2 is provided with a plurality of screw holes 8 corresponding to the number of the locking screws 7, the pressing ring 6 abuts against the inside of the first sign panel 3, and the pressing ring 6 is provided with a plurality of through holes 9 corresponding to the number of the locking screws 7, the screw rod of the locking screw 7 penetrates through the corresponding through hole 9 and is screwed into the corresponding screw hole 8, the through hole 9 and the corresponding screw hole 8 are on the same axis, and the head of the locking screw 7 abuts against the inside of the pressing ring 6; the connection mode of the second sign panel 4 and the mounting flange 5 is the same as that of the first sign panel 3 and the front cover 2. The plurality of locking screws 7 press the pressing ring 6 on the first sign panel 3, so that the first sign panel 3 is pressed on the inside of the front cover 2, realizing the locking connection of the first sign panel 3, and the connection structure is simple and reliable. The transition between the locking screw 7 and the first sign panel 3 is through the pressing ring 6, so that the force on each part of the edge of the first sign panel 3 is more uniform, and the locking effect is better. The connection structure of the second sign panel 4 and the mounting flange 5 also has the above-mentioned effect, and the connection mode is the same, increasing the universality of the connection assembly.

[0030] As shown in the accompanying drawings, Figures 3-5 As shown, the inside of the front cover 2 is provided with a plurality of mounting protrusions 10 corresponding to the number of the screw holes 8, a plurality of mounting protrusions 10 are arranged around the outer periphery of the first sign panel 3, and the height of the mounting protrusion 10 is equivalent to the thickness of the first sign panel 3, the screw hole 8 is arranged on the corresponding mounting protrusion 10, the outer periphery of the pressing ring 6 is provided with a plurality of connecting protrusions 11 corresponding to the number of the through holes 9, the connecting protrusion 11 abuts against the corresponding mounting protrusion 10, and the through hole 9 is arranged on the corresponding connecting protrusion 11. The mounting protrusion 10 can support the connecting protrusion 11, and the mounting protrusion 10 is arranged on the outer periphery of the first sign panel 3, which can play a role in positioning, and is more conducive to the installation operation.

[0031] As shown in the accompanying drawings, Figure 3 As shown, the head of the locking screw 7 and the mounting protrusion 10 are clamped with a gasket 12. The gasket 12 can prevent the locking screw 7 from loosening.

[0032] As shown in the accompanying drawings, Figures 3-5 As shown, the outer edge of the pressing ring 6 is provided with a plurality of positioning bends 13, that is, the positioning bends 13 are bent from the edge of the pressing ring 6, and the positioning bends 13 abut against the outer periphery of the first sign panel 3. The positioning bends 13 on the pressing ring 6 abut against the outer periphery of the first sign panel 3, which can position the first sign panel 3, improve the accuracy of the installation position and the firmness of the installation structure.

[0033] As shown in the accompanying drawings, Figure 3As shown, the inner side of the front cover 2 is provided with a first annular sealing groove 14, and a first sealing ring 15 is provided in the first annular sealing groove 14 for forming a sealing fit with the first sign panel 3. The inner side of the mounting flange 5 is provided with a second annular sealing groove 16, and a second sealing ring 17 is provided in the second annular sealing groove 16 for forming a sealing fit with the second sign panel 4. This design can effectively ensure reliable sealing between the front cover 2 and the first sign panel 3, and between the mounting flange 5 and the second sign panel 4.

[0034] As attached Figure 3 As shown, the housing 1 and the front cover 2 are connected together by fasteners, such as bolts. The front cover 2 has a third annular sealing groove 18 near the housing 1, and a third sealing ring 19 is disposed within the third annular sealing groove 18. The housing 1 has a compression rib 20 near the front cover 2 for extending into the third annular sealing groove 18 and engaging with the third sealing ring 19. This design effectively ensures a reliable seal between the housing 1 and the front cover 2.

[0035] As attached Figure 1 As shown, the outer surfaces of both the housing 1 and the front cover 2 are provided with multiple heat dissipation grooves 21. Increasing the contact area between the outer surfaces of the housing 1 and the front cover 2 and the air increases their heat dissipation area, thereby improving the heat dissipation effect and extending the service life of the explosion-proof sign light.

Claims

1. An explosion-proof marker light comprising a housing (1), a front cover (2), a first marker panel (3) and a second marker panel (4); characterized in that: The shell (1) is hollow and open at both ends, the rear end of the shell (1) is provided with an inwardly extending mounting flange (5), the front cover (2) is a structure with a through middle, the front cover (2) is mounted at the front opening of the shell (1), and the outer edge of the first sign panel (3) and the second sign panel (4) is connected to the inner side of the front cover (2) and the inner side of the mounting flange (5) respectively.

2. The explosion-proof marker light of claim 1, wherein: The first sign panel (3) is connected with the front cover (2) through a locking assembly, the locking assembly includes a pressing ring (6) and a plurality of locking screws (7), the inner side of the front cover (2) is provided with a plurality of screw holes (8) corresponding in number to the locking screws (7), the pressing ring (6) abuts the inner side of the first sign panel (3), and the pressing ring (6) is provided with a plurality of through holes (9) corresponding in number to the locking screws (7), the screw rod part of the locking screw (7) penetrates the corresponding through hole (9) and is threadedly connected in the corresponding screw hole (8), and the screw head part of the locking screw (7) abuts the inner side of the pressing ring (6); the connection mode of the second sign panel (4) and the mounting flange (5) is the same as that of the first sign panel (3) and the front cover (2).

3. The explosion-proof marker light of claim 2, wherein: The inner side of the front cover (2) is provided with a plurality of mounting protrusions (10) corresponding in number to the screw holes (8), a plurality of mounting protrusions (10) are arranged around the outer periphery of the first sign panel (3), and the height of the mounting protrusion (10) is equivalent to the thickness of the first sign panel (3), the screw hole (8) is arranged on the corresponding mounting protrusion (10), the outer periphery of the pressing ring (6) is provided with a plurality of connecting protrusions (11) corresponding in number to the through holes (9), the connecting protrusion (11) abuts the corresponding mounting protrusion (10), and the through hole (9) is arranged on the corresponding connecting protrusion (11).

4. The explosion-proof marker light of claim 3, wherein: The screw head part of the locking screw (7) and the mounting protrusion (10) are clamped with a gasket (12) therebetween.

5. The explosion-proof marker light of claim 3, wherein: The outer edge of the pressing ring (6) is provided with a plurality of positioning bends (13), and the positioning bends (13) abut tightly with the outer periphery of the first sign panel (3).

6. The explosion-proof marker light of claim 1, wherein: The inner side of the front cover (2) is provided with a first annular sealing groove (14), the first annular sealing groove (14) is provided with a first sealing ring (15) for sealing cooperation with the first sign panel (3), the inner side of the mounting flange (5) is provided with a second annular sealing groove (16), and the second annular sealing groove (16) is provided with a second sealing ring (17) for sealing cooperation with the second sign panel (4).

7. The explosion-proof marker light of claim 1, wherein: The shell (1) and the front cover (2) are connected together by fasteners, and the front cover (2) is provided with a third annular sealing groove (18) near one end of the shell (1), the third annular sealing groove (18) is provided with a third sealing ring (19), and the shell (1) is provided with an extrusion protrusion (20) near one end of the front cover (2) for extruding the third sealing ring (19) by being inserted into the third annular sealing groove (18).

8. The explosion-proof marker light of claim 1, wherein: The outer surface of the shell (1) and the front cover (2) are provided with a plurality of heat dissipation grooves (21).

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