Anti-explosion searchlight

Abstract

The explosion-proof searchlight comprises a lamp holder, a mounting plate arranged below the lamp holder, a bulb arranged on the mounting plate and a lampshade arranged outside the bulb, the lampshade is connected to the mounting plate in a threaded mode, a protective cover is arranged outside the lampshade, and a plurality of arc-shaped inserting blocks are arranged at the top of the protective cover. L-shaped sliding grooves are formed in the faces, away from the lampshade, of the multiple arc-shaped inserting blocks correspondingly, L-shaped limiting blocks are slidably connected into the multiple L-shaped sliding grooves correspondingly, first inclined faces are formed in the faces, away from the lampshade, of the multiple L-shaped limiting blocks correspondingly, and first springs are arranged in the multiple L-shaped sliding grooves correspondingly; a plurality of inserting grooves allowing the arc-shaped inserting blocks to be inserted therein are formed in the bottom face of the mounting plate, and a plurality of limiting grooves allowing the L-shaped limiting blocks to be inserted therein are formed in the side walls, away from the lampshade, of the inserting grooves. The connecting structure of the protective cover is improved, so that the protective cover is simple and convenient to disassemble.

Description

Technical Field

[0001] The utility model relates to the field of lamps, in particular to an explosion-proof searchlight. Background Art

[0002] Explosion-proof lamps are lamps used in dangerous places where flammable gases and dust exist. They can prevent electric arcs, sparks and high temperatures that may be generated inside the lamp from igniting flammable gases and dust in the surrounding environment, thereby meeting explosion-proof requirements.

[0003] Explosion-proof lamps are usually equipped with a protective cover, which is usually installed with screws. When the bulb of an explosion-proof lamp has a problem and needs to be repaired, the maintenance personnel must first remove the screws before removing the lampshade. However, most explosion-proof lamps are installed at high places, which makes the maintenance personnel mostly look up when repairing the explosion-proof lamps. The screw connection of the protective cover requires the maintenance personnel to look up for a long time to remove the screws when removing the protective cover, which makes it very difficult to remove the protective cover. Utility Model Content

[0004] The present application provides an explosion-proof searchlight, which makes the removal of the protective cover simple and convenient by improving the connection structure of the protective cover.

[0005] The explosion-proof searchlight provided in this application adopts the following technical solution:

[0006] A kind of explosion-proof searchlight comprises a lamp holder, a mounting plate arranged below the lamp holder, a bulb arranged on the mounting plate, and a lampshade arranged outside the bulb, wherein the lampshade is threadedly connected to the mounting plate, a protective cover is arranged outside the lampshade, a plurality of arc-shaped plugs are arranged on the top of the protective cover, a plurality of the arc-shaped plugs are arranged on a side away from the lampshade, an L-shaped slide groove is provided, a plurality of L-shaped limit blocks are slidably connected in the L-shaped slide grooves, a plurality of the L-shaped limit blocks are arranged on a side away from the lampshade with a first inclined surface, a plurality of the L-shaped slide grooves are provided with a first spring for pushing the L-shaped limit blocks to always move in a direction away from the lampshade, a plurality of slots for inserting the arc-shaped plugs are arranged on the bottom surface of the mounting plate, a plurality of limit slots for inserting the L-shaped limit blocks are arranged on the side walls of the slots away from the lampshade, and in an initial state, one end of a plurality of the L-shaped limit blocks respectively extends out of a plurality of L-shaped slide grooves.

[0007] By adopting the above technical solution, a number of arc-shaped plugs are then inserted into the slots, and then a number of L-shaped limit blocks are pressed into the L-shaped slide grooves, so that the number of L-shaped limit blocks do not hinder the movement of the number of arc-shaped plugs. When the number of arc-shaped plugs are fully inserted into the number of slots, the protective cover is rotated so that the number of L-shaped slide grooves are aligned with the number of limit grooves. At this time, the number of springs will push the L-shaped limit blocks to move away from the number of L-shaped slide grooves, so that the number of L-shaped limit blocks are inserted into the number of limit grooves, thereby completing the connection and locking of the protective cover and the mounting plate. When the protective cover needs to be removed, the maintenance personnel first rotate the protective cover so that the number of first inclined surfaces conflict with the side walls of the number of limit grooves, thereby converting the rotation force of the protective cover into the movement force of the number of L-shaped limit blocks, so that the number of L-shaped limit blocks move into the L-shaped slide grooves. When the number of L-shaped limit blocks completely move into the number of L-shaped slide grooves, the maintenance personnel can pull out the number of arc-shaped plugs from the mounting plate and complete the removal of the protective cover. The whole process is easy and simple.

[0008] Preferably, a second inclined surface is formed on the top surface of a plurality of the L-shaped limit blocks, and the distance from the second inclined surface to the lampshade increases from the top end of the second inclined surface to the bottom end of the second inclined surface.

[0009] By adopting the above technical solution, during the process of inserting the plurality of arc-shaped plugs into the plurality of slots, the plurality of second inclined surfaces will conflict with the mounting plate. Through the cooperation of the plurality of second inclined surfaces and the mounting plate, the power of the arc-shaped plugs is converted into the power of the L-shaped limit blocks. The plurality of L-shaped limit blocks can automatically move into the plurality of L-shaped slots during the process of inserting the plurality of arc-shaped plugs into the plurality of slots without manual pressing.

[0010] Preferably, guide grooves are provided on the bottom surfaces of a plurality of the limiting grooves in the vertical direction, and the guide grooves are connected with the outside and the limiting grooves.

[0011] By adopting the above technical solution, the opening of the guide groove can remind the maintenance personnel of the positions of the several limit grooves. Before installing the protective cover, first align the several L-shaped limit blocks with the several guide grooves, and then insert the several arc-shaped plug blocks into the slots, so that the several L-shaped limit blocks can be directly inserted into the several limit grooves during the movement of the several arc-shaped plug blocks, thereby simplifying the installation procedure of the protective cover.

[0012] Preferably, a third inclined surface is formed on a surface of a plurality of the guide grooves away from the lampshade, and a distance from the third inclined surface to the lampshade gradually increases from a top end of the third inclined surface to a bottom end of the third inclined surface.

[0013] By adopting the above technical solution, the opening of the third inclined surface makes the diameter of the notch at the bottom of the guide groove larger, so that the plurality of arc-shaped inserts are more easily aligned with the plurality of guide grooves.

[0014] Preferably, an elastic sealing cover is provided on the mounting plate, the elastic sealing cover is located between the protective cover and the lampshade, and the elastic sealing cover is used to seal the connection between the mounting plate and the lampshade.

[0015] By adopting the above technical solution, an elastic sealing cover is provided to further prevent fine particles such as dust from entering the lampshade through the connection between the mounting plate and the lampshade, thereby improving the safety of the explosion-proof lamp.

[0016] Preferably, a plurality of first slide grooves are provided on the bottom surface of the mounting plate in a direction perpendicular to the axis of the light bulb, and the plurality of first slide grooves are respectively located between a plurality of slots and the elastic sealing covers, and a plurality of slide rods are slidably connected in the plurality of first slide grooves, and the bottom ends of the plurality of slide rods extend out of the first slide grooves and are connected to arc-shaped hoop tubes, and a plurality of driving parts are also provided on the mounting plate, and the driving parts are used to drive the plurality of slide rods to move toward the elastic sealing cover so that the plurality of arc-shaped hoop tubes are connected to each other and the elastic sealing cover is hooped onto the lampshade.

[0017] By adopting the above technical solution, several driving parts control the movement of several sliding rods, so that several arc-shaped hoop tubes are connected to each other and the elastic sealing cover is hooped on the lampshade, thereby further improving the sealing performance of the elastic sealing cover on the connection between the mounting plate and the lampshade.

[0018] Preferably, a second slide groove is opened on a surface of several of the slots close to the lampshade, and several of the second slide grooves are respectively located above several first slide grooves and are respectively connected to several slots, the driving part includes a slider slidably connected to the second slide groove, a second spring arranged in the second slide groove, the top end of the slide rod is connected to the slider, one end of the second spring is in contact with the slider, and the other end is in contact with the side wall of the second slide groove close to the lampshade, and a fourth inclined surface is provided on a surface of the slider away from the lampshade, and the distance of the fourth inclined surface from the lampshade gradually decreases from the top end of the fourth inclined surface to the bottom end of the fourth inclined surface, and in the initial state, the ends of several of the fourth inclined surfaces away from the lampshade are respectively located in several slots.

[0019] By adopting the above technical solution, when the arc-shaped plugs are inserted into the slots, the arc-shaped plugs will collide with the fourth inclined surfaces and move away from the slots through the fourth inclined surfaces and the sliders. When the sliders move away from the slots, the second springs will be compressed and the slide bars will move toward the elastic sealing cover. When the sliders move to be completely located in the first slide groove, the arc-shaped hoop tubes are connected to each other to form a hoop ring and the elastic sealing cover is hooped on the lampshade. When the arc-shaped plugs are located in the slots, the sliders will press the arc-shaped plugs, thereby reducing the possibility of the arc-shaped plugs falling out of the slots.

[0020] Preferably, a surface of the plurality of slide blocks away from the lampshade is an arcuate surface, the fourth inclined surface is provided on the arcuate surface, and when the plurality of arcuate plug-ins are located in the plurality of slots, the plurality of arcuate surfaces are respectively fitted with the plurality of arcuate plug-ins.

[0021] By adopting the above technical solution, the limiting effect of the plurality of sliding blocks on the plurality of arc-shaped inserts is further enhanced.

[0022] The technical effects of this utility model are mainly reflected in the following aspects:

[0023] 1. The utility model simplifies the connection structure of the protective cover, making it easy to disassemble the protective cover;

[0024] 2. The utility model provides a guide groove so that the L-shaped limit block can be inserted into the limit groove more accurately;

[0025] 3. The slider and the second spring of the utility model convert the power of the plug into the power of the arc-shaped hoop. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the explosion-proof lamp of this application.

[0027] Figure 2 yes Figure 1 A cross-sectional view of the explosion-proof lamp of the present application along line AA.

[0028] Figure 3 yes Figure 2 A partial enlarged view of point B in the middle.

[0029] Figure 4 Apply for a structural diagram of an explosion-proof lamp from another angle.

[0030] Figure 5 yes Figure 4 Cross-sectional view of the explosion-proof lamp along line CC.

[0031] Figure 6 yes Figure 5 A partial enlarged view of point D in the middle.

[0032] Figure 7 Schematic diagram of the structure of the L-shaped limit block in this application.

[0033] Figure numerals: 1. lamp holder; 2. mounting plate; 21. slot; 22. limit slot; 23. guide slot; 24. third inclined plane; 25. first slide slot; 26. second slide slot; 3. bulb; 4. lampshade; 5. protective cover; 6. arc-shaped plug; 61. L-shaped slide slot; 62. L-shaped limit block; 621. first inclined plane; 622. second inclined plane; 63. first spring; 7. elastic sealing cover; 8. slide rod; 81. arc-shaped hoop; 9. driving part; 91. slider; 911. fourth inclined plane; 912. arc-shaped surface; 92. second spring. DETAILED DESCRIPTION

[0034] The present application is further described in detail below in conjunction with the attachment to make the technical solution of the present application easier to understand and grasp.

[0035] Reference Figure 1-Figure 7 The explosion-proof searchlight of the present embodiment comprises a lamp holder 1, a mounting plate 2 arranged below the lamp holder 1, a bulb 3 arranged on the mounting plate 2, and a lampshade 4 arranged outside the bulb 3. The lampshade 4 is threadedly connected to the mounting plate 2. A protective cover 5 is arranged outside the lampshade 4. A plurality of arc-shaped plugs 6 are fixed on the top of the protective cover 5. L-shaped slide grooves 61 are arranged on the side of the plurality of arc-shaped plugs 6 away from the lampshade 4. L-shaped limit blocks 62 are slidably connected in the plurality of L-shaped slide grooves 61. A first inclined surface 621 is arranged on the side of the plurality of L-shaped limit blocks 62 away from the lampshade 4. The distance from the top of the plurality of first inclined surfaces 621 to the lampshade 4 is smaller than the distance from the bottom of the plurality of first inclined surfaces 621 to the lampshade 4. A second inclined surface 622 is arranged on the top surface of the plurality of L-shaped limit blocks 62. The distance from the second inclined surface 622 to the lampshade 4 gradually increases from the top of the second inclined surface 622 to the bottom of the second inclined surface 622.

[0036] Reference Figure 1-Figure 3 , a first spring 63 is provided in each of the L-shaped slide grooves 61 for pushing the L-shaped limit block 62 to always move in the direction away from the lampshade 4, one end of the first springs 63 respectively rests on the side walls of the L-shaped slide grooves 61 close to the lampshade 4, and the other ends of the first springs 63 respectively rest on the L-shaped sliders 91. In the initial state, the first springs 63 press the L-shaped sliders 91 against the side walls of the L-shaped slide grooves 61 away from the lampshade 4, and one end of the L-shaped limit blocks 62 respectively extends out of the L-shaped slide grooves 61.

[0037] Reference Figure 1-Figure 3 The bottom surface of the mounting plate 2 is provided with a plurality of slots 21 for inserting the arc-shaped inserting blocks 6, and the side walls of the plurality of slots 21 away from the lampshade 4 are provided with a plurality of limiting grooves 22 for inserting the L-shaped limiting blocks 62, and the bottom surfaces of the plurality of limiting grooves 22 are provided with guide grooves 23 in the vertical direction, and the guide grooves 23 are connected to the outside and the limiting grooves 22. The third inclined surface 24 is provided on the side of the guide grooves 23 away from the lampshade 4, and the distance between the third inclined surface 24 and the lampshade 4 gradually increases from the top end of the third inclined surface 24 to the bottom end of the third inclined surface 24.

[0038] Reference Figure 1-Figure 3The bottom surface of the mounting plate 2 is also provided with an elastic sealing cover 7, which is located between the protective cover 5 and the lampshade 4, and is used to seal the connection between the mounting plate 2 and the lampshade 4. A plurality of first slide grooves 25 are provided on the bottom surface of the mounting plate 2 in a direction perpendicular to the axis of the bulb 3, and the plurality of first slide grooves 25 are respectively located between the plurality of slots 21 and the elastic sealing cover 7, and a plurality of slide rods 8 are slidably connected in the plurality of first slide grooves 25, and the plurality of slide rods 8 are L-shaped, and the bottom ends of the plurality of slide rods 8 extend out of the first slide grooves 25 and are connected with arc-shaped hoop tubes 81.

[0039] Reference Figure 1-Figure 3 A second slide groove 26 is formed on a surface of the plurality of slots 21 close to the lampshade 4. The plurality of second slide grooves 26 are respectively located above the plurality of first slide grooves 25 and are respectively connected to the plurality of slots 25. The mounting plate 2 is further provided with a plurality of driving parts 9, which are used to drive the plurality of slide rods 8 to move toward the elastic sealing cover 7 so that the plurality of arc-shaped hoop tubes 81 are connected to each other and the elastic sealing cover 7 is hooped on the lampshade 4. The driving part 9 includes a slider 91 slidably connected to the second slide groove 26, and a second spring 92 arranged in the second slide groove 26. The top end of the slide rod 8 is connected to the slider 91, one end of the second spring 92 is in contact with the slider 91, and the other end is in contact with the side wall of the second slide groove 26 close to the lampshade 4. The side of the slider 91 away from the lampshade 4 is an arcuate surface 912, and a fourth inclined surface 911 is provided on the arcuate surface 912. The distance between the fourth inclined surface 911 and the lampshade 4 gradually decreases from the top end of the fourth inclined surface 911 to the bottom end of the fourth inclined surface 911. In the initial state, the ends of several fourth inclined surfaces 911 away from the lampshade 4 are respectively located in several slots 21.

[0040] Reference Figure 1-Figure 7 The specific disassembly and assembly steps of the protective cover 5 of the present application are as follows:

[0041] When the protective cover 5 needs to be installed, first align the arc-shaped plug blocks 6 with the slots 21 , align one end of the L-shaped shift blocks extending out of the first slide grooves 25 with the guide grooves 23 , and then push the protective cover 5 upward so that the L-shaped limit blocks 62 are inserted into the slots 21 .

[0042] During the process of inserting the arc-shaped plug blocks 6 into the slots 21 , the second inclined surfaces 622 will interfere with the mounting plate 2 . The power of the arc-shaped plug blocks 6 is converted into the power of the L-shaped limit blocks 62 through the cooperation between the second inclined surfaces 622 and the mounting plate 2 , so that the L-shaped limit blocks 62 can automatically move into the L-shaped slots 21 during the process of inserting the arc-shaped plug blocks 6 into the slots 21 .

[0043] After the arc-shaped plugs 6 are inserted into the slots 21, as the arc-shaped plugs 6 move, the L-shaped grooves 61 will eventually be completely aligned with the limit grooves 22. At this time, the springs will push the L-shaped limit blocks 62 to move away from the L-shaped grooves 61, so that the L-shaped limit blocks 62 are inserted into the limit grooves 22, thereby completing the connection and locking of the protective cover 5 and the mounting plate 2.

[0044] At the same time, in the process of inserting the plurality of arc-shaped plug blocks 6 into the plurality of slots 21, the plurality of arc-shaped plug blocks 6 will interfere with the plurality of fourth inclined surfaces 911, and the plurality of sliders 91 will move away from the plurality of slots 21 through the plurality of fourth inclined surfaces 911. In the process of the plurality of sliders 91 moving away from the plurality of slots 21, the plurality of second springs 92 will be compressed and the plurality of slide bars 8 will move toward the elastic sealing cover 7. When the plurality of sliders 91 move to be completely located in the plurality of first slide grooves 25, the plurality of arc-shaped hoop tubes 81 will be connected to each other to form a hoop, and the hoop will hoop the elastic sealing cover 7 onto the lampshade 4.

[0045] When the protective cover 5 needs to be disassembled, the maintenance personnel first rotate the protective cover 5 so that the first inclined surfaces 621 conflict with the side walls of the limiting grooves 22, thereby converting the rotational force of the protective cover 5 into the movement force of the L-shaped limiting blocks 62, so that the L-shaped limiting blocks 62 move into the L-shaped slide grooves 61. When the L-shaped limiting blocks 62 completely move into the L-shaped slide grooves 61, the maintenance personnel can pull out the arc-shaped plug blocks 6 from the mounting plate 2 to complete the disassembly of the protective cover 5. The whole process is easy and simple.

[0046] During the process of maintenance personnel rotating to pull out the plurality of arc-shaped plug blocks 6 from the mounting plate 2, when the plurality of arc-shaped plug blocks 6 no longer conflict with the restricting plurality of sliders 91, the plurality of second springs 92 will push the plurality of sliders 91 to move into the plurality of slots 21. During the movement of the plurality of sliders 91, the plurality of slide bars 8 will be driven to move so that the plurality of arc-shaped hoops 81 move away from each other, thereby making the plurality of arc-shaped hoops 81 no longer hoop the elastic sealing cover 7, thereby facilitating the disassembly of the elastic sealing cover 7 and the lampshade 4.

[0047] Of course, the above are only typical examples of the present application. In addition, the present application may have many other specific implementation methods. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present application.

Claims

1. An explosion-proof searchlight, comprising a lamp holder (1), a mounting plate (2) arranged below the lamp holder (1), a bulb (3) arranged on the mounting plate (2), and a lampshade (4) arranged outside the bulb (3), wherein the lampshade (4) is threadedly connected to the mounting plate (2), and a protective cover (5) is arranged outside the lampshade (4). Features: A plurality of arc-shaped plugs (6) are provided on the top of the protective cover (5); an L-shaped slide groove (61) is provided on the side of the arc-shaped plugs (6) away from the lampshade (4); an L-shaped limit block (62) is slidably connected in the L-shaped slide grooves (61); a first inclined surface (621) is provided on the side of the L-shaped limit block (62) away from the lampshade (4); a first spring (63) is provided in the L-shaped slide grooves (61) for pushing the L-shaped limit block (62) to always move in the direction away from the lampshade (4); a plurality of slots (21) for inserting the arc-shaped plugs (6) are provided on the bottom surface of the mounting plate (2); a plurality of limit slots (22) for inserting the L-shaped limit blocks (62) are provided on the side walls of the slots (21) away from the lampshade (4); in the initial state, one end of the plurality of L-shaped limit blocks (62) extends out of the plurality of L-shaped slide grooves (61) respectively.

2. An explosion-proof searchlight according to claim 1, Features: A second inclined surface (622) is provided on the top surface of a plurality of the L-shaped limit blocks (62), and the distance between the second inclined surface (622) and the lampshade (4) increases from the top end of the second inclined surface (622) to the bottom end of the second inclined surface (622).

3. An explosion-proof searchlight according to claim 2, Features: A guide groove (23) is provided on the bottom surface of a plurality of the limiting grooves (22) in a vertical direction, and the guide groove (23) is connected with the outside and the limiting groove (22).

4. An explosion-proof searchlight according to claim 3, Features: A third inclined surface (24) is provided on a surface of the plurality of guide grooves (23) away from the lampshade (4), and the distance between the third inclined surface (24) and the lampshade (4) gradually increases from the top end of the third inclined surface (24) to the bottom end of the third inclined surface (24).

5. An explosion-proof searchlight according to claim 1, Features: An elastic sealing cover (7) is provided on the mounting plate (2), the elastic sealing cover (7) is located between the protective cover (5) and the lampshade (4), and the elastic sealing cover (7) is used to seal the connection between the mounting plate (2) and the lampshade (4).

6. An explosion-proof searchlight according to claim 5, Features: A plurality of first slide grooves (25) are provided on the bottom surface of the mounting plate (2) in a direction perpendicular to the axis of the light bulb (3). The plurality of first slide grooves (25) are respectively located between the plurality of slots (21) and the elastic sealing cover (7). The plurality of first slide grooves (25) are slidably connected with slide rods (8). The bottom ends of the plurality of slide rods (8) extend out of the first slide grooves (25) and are connected with arc-shaped hoop tubes (81). The mounting plate (2) is also provided with a plurality of driving parts (9). The driving parts (9) are used to drive the plurality of slide rods (8) to move toward the elastic sealing cover (7) so that the plurality of arc-shaped hoop tubes (81) are connected to each other and the elastic sealing cover (7) is hooped onto the lampshade (4).

7. An explosion-proof searchlight according to claim 6, Features: A second slide groove (26) is provided on a surface of a plurality of the slots (21) close to the lampshade (4); the plurality of the second slide grooves (26) are respectively located above the plurality of the first slide grooves (25) and are respectively connected to the plurality of the slots (21); the driving part (9) comprises a slider (91) slidably connected to the second slide groove (26), and a second spring (92) is arranged in the second slide groove (26); the top end of the slide rod (8) is connected to the slider (91), and one end of the second spring (92) is connected to the slider. One end of the slider (91) contacts with the slide block (91), and the other end contacts with the side wall of the second slide groove (26) close to the lampshade (4); a fourth inclined surface (911) is provided on the side of the slider (91) away from the lampshade (4); the distance between the fourth inclined surface (911) and the lampshade (4) gradually decreases from the top end of the fourth inclined surface (911) to the bottom end of the fourth inclined surface (911); in the initial state, the ends of the fourth inclined surfaces (911) away from the lampshade (4) are respectively located in the plurality of slots (21).

8. An explosion-proof searchlight according to claim 7, Features: The side of the plurality of slide blocks (91) away from the lampshade (4) is an arcuate surface (912), and the fourth inclined surface (911) is provided on the arcuate surface (912). When the plurality of arcuate plug blocks (6) are located in the plurality of slots (21), the plurality of arcuate surfaces (912) respectively fit the plurality of arcuate plug blocks (6).

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