An explosion-proof portable mobile light

Abstract

The application discloses an explosion-proof portable mobile lamp, which comprises a lamp head assembly, a display screen assembly, a battery assembly, a driving assembly, a lifting rod assembly and a tripod support assembly. The explosion-proof portable mobile lamp is powered by three groups of batteries, each group of battery comprising six 21700 lithium batteries connected in series. Since the 21700 lithium battery has high energy density, the number of single batteries can be greatly reduced in use, so that long-time high-power lighting of the lamp can be realized without greatly increasing the weight of the lamp. In addition, the lamp head assembly, the display screen assembly, the battery assembly and the driving box assembly of the explosion-proof portable mobile lamp correspondingly adopt explosion-proof modes of the explosion-proof type, the intrinsic safety type, the increased safety type and the pouring sealing type to realize the explosion-proof function of the lamp, thereby increasing the application range of the lamp and enabling the lamp to be widely applied to small construction, daily maintenance and emergency rescue operation in explosion-proof places such as oil refining, chemical industry and oil field.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lighting equipment, in particular to a portable explosion-proof lamp. BACKGROUND

[0002] It is known to those skilled in the art of lighting equipment that the greater the lighting power, the greater the capacity of the battery required to meet the endurance time, and the heavier the lamp, the more inconvenient it is to carry. In addition, when the lighting power reaches 50W, the explosion-proof form of the lamp battery can only be made into an increased safety explosion-proof, and the series-parallel structure of the battery has high requirements, and the design of the whole lamp structure is difficult. Therefore, the existing explosion-proof mobile lamp is limited by the explosion-proof form of the lamp and the characteristics of portability, and it is difficult to achieve long-time high-power lighting. SUMMARY

[0003] The technical problem to be solved by the present application is to provide a portable explosion-proof lamp, which can solve the problem that the existing explosion-proof mobile lamp is limited by the characteristics of portability and is difficult to achieve long-time high-power lighting.

[0004] To solve the above technical problems, the technical scheme adopted by the present application is as follows:

[0005] A portable explosion-proof lamp comprises a lamp head assembly, a display screen assembly, a battery assembly, a driving assembly, a lifting rod assembly and a tripod support assembly. The lamp head assembly comprises a lamp holder and an explosion-proof lamp head, which is installed on the lamp holder through a vertical rotating mechanism and a horizontal rotating mechanism. The display screen assembly is explosion-proof in an intrinsically safe explosion-proof manner and comprises a display screen housing arranged below the lamp holder, a display screen and a key arranged on the display screen housing. The battery assembly comprises a battery protection shell fixedly connected to the lower end of the display screen housing, three cylindrical battery cavities arranged along the length direction of the battery protection shell, and a battery sealing plug arranged at each end of the cylindrical battery cavity. The battery protection shell is explosion-proof in an increased safety explosion-proof manner, and six 21700 lithium batteries are arranged in series in each cylindrical battery cavity. The driving assembly comprises a driving box, a power board poured into the driving box and a charging interface arranged on the driving box. The driving box is fixedly connected to the end of the battery protection shell away from the display screen assembly. The power board is electrically connected to the battery assembly, the display screen assembly and the lamp head assembly through a cable. The upper end of the lifting rod assembly is fixedly connected to the lower end of the lamp holder, and the lower end of the lifting rod assembly is fixedly connected to the driving box after sequentially penetrating through the display screen housing and the battery protection shell. The tripod support assembly comprises three supporting legs pivotally connected to the driving box. The supporting legs can be unfolded and folded by rotating the supporting legs. The supporting legs are provided with a locking structure for locking the position of the supporting legs when the supporting legs are unfolded.

[0006] Preferably, the vertical rotating mechanism comprises a connecting base arranged on the lamp holder and a vertical rotating joint pivotally connected with the connecting base; the horizontal rotating mechanism comprises an arc-shaped slot, a cover, a bushing and a rotating shaft arranged on the explosion-proof lamp head, the rotating shaft is fixedly connected with the vertical rotating joint, the rotating shaft is rotatably sleeved in the bushing, the cover is arranged on the arc-shaped slot to clamp the bushing between the arc-shaped slot and the cover, the bushing is provided with an elastic block, the elastic block is provided with a protruding part, and the inner side of the arc-shaped slot and the inner side of the cover are provided with a groove part matched with the protruding part.

[0007] Preferably, an O-shaped rubber ring is arranged between the bushing and the rotating shaft; a limiting boss is arranged on one end of the vertical rotating joint close to the rotating shaft, and the outer side of one end of the bushing close to the vertical rotating joint is provided with a limiting protrusion for limiting the limiting boss.

[0008] Preferably, the display screen shell comprises a display screen front shell, a display screen rear cover matched with the display screen front shell and a display screen bottom cover connected with the lower ends of the display screen front shell and the display screen rear cover, and the display screen bottom cover is provided with a through hole through which the lifting rod assembly passes, the outer side of the display screen front shell is provided with a display screen and a key, the key comprises a power switch key, a lightening key, a darkening key and a gathering key, the inner side of the display screen front shell is provided with a display screen control cavity, and the display screen control cavity is provided with a display screen mainboard and a key mainboard.

[0009] Preferably, the driving box comprises a driving box upper shell and a driving box lower shell matched with the driving box upper shell, the charging interface is arranged on the driving box upper shell, the charging interface is provided with a sealing rubber plug, the power board is poured and sealed in the driving box lower shell, the driving box upper shell is provided with a wiring board, the power board is electrically connected with the battery assembly, the display screen assembly and the lamp head assembly through the wiring board, the driving box upper shell is provided with a wire passing hole through which a cable passes, and the wire passing hole is provided with a wire passing hole plug.

[0010] Preferably, the lifting rod assembly comprises first, second and third lifting rods which are all hollow rods, the upper end of the first lifting rod is fixedly connected with the lamp holder of the lamp head assembly, the lower end of the first lifting rod is connected with a first damping assembly, and the lower end of the first lifting rod is sleeved in the second lifting rod and slidably matched with the second lifting rod; the upper end of the second lifting rod is provided with a first lock catch which can be used to lock the first lifting rod, the lower end of the second lifting rod is connected with a second damping assembly, and the lower end of the second lifting rod is sleeved in the third lifting rod and slidably matched with the third lifting rod; the upper end of the third lifting rod is provided with a second lock catch which can be used to lock the second lifting rod, and the lower end of the third lifting rod is fixedly connected with the driving assembly.

[0011] Preferably, the first damping assembly comprises a first damping ring and a first connecting piece, the upper end of the first connecting piece is sleeved in the first lifting rod and is locked by a locking screw, and the first damping ring is sleeved outside the lower end of the first connecting piece; the second damping assembly comprises a second damping ring and a second connecting piece, the upper end of the second connecting piece is sleeved in the second lifting rod and is locked by a locking screw, and the second damping ring is sleeved outside the lower end of the second connecting piece.

[0012] Preferably, the outer side of the driving box is provided with a foot connecting seat, the foot connecting seat is provided with a limiting groove, the foot is provided with a foot joint, the foot joint is pivotally connected to the foot connecting seat through a bolt, the locking structure comprises a spring pin, a spring and a hand, the spring pin and the spring are arranged in the foot, the hand is fixedly connected to the spring pin through a strip-shaped hole arranged on the foot, the spring pin can slide back and forth along the length direction of the foot and is limited by the hand, and the spring pin is driven by the spring to extend to the foot joint and abut against the foot connecting seat, and the spring pin is clamped into the limiting groove when aligning with the limiting groove.

[0013] Preferably, the foot joint is connected to a cylindrical pipe, the cylindrical pipe is provided with a second strip-shaped hole, the cylindrical pipe is inserted into the foot through the fixation of the foot joint to one end of the foot, the spring pin and the spring are arranged in the cylindrical pipe, one end of the cylindrical pipe away from the foot joint is provided with a spring plug, the hand is fixedly connected to the spring pin through the strip-shaped hole and the second strip-shaped hole arranged on the foot, and the spring pin can slide back and forth along the length direction of the cylindrical pipe and is limited by the hand.

[0014] Preferably, one end of the foot away from the driving box is provided with an adjusting rod threadedly connected to the foot, the adjusting rod is provided with a spherical groove, the display screen shell comprises a display screen front shell, a display screen rear cover matched and connected to the display screen front shell and a display screen bottom cover connected to the lower ends of the display screen front shell and the display screen rear cover, and the display screen bottom cover is provided with an elastic limiting protrusion used for limiting the spherical groove.

[0015] The anti-explosion portable mobile lamp uses three groups of batteries for power supply, each group of battery comprises six 21700 lithium batteries connected in series, the energy density of the 21700 lithium battery is high, the number of single batteries can be greatly reduced in use, therefore, the lamp can realize long-time high-power lighting without greatly increasing the weight of the lamp, in addition, the lamp head assembly, the display screen assembly, the battery assembly and the driving box assembly of the anti-explosion portable mobile lamp correspondingly adopt the explosion-proof modes of the explosion-proof type, the intrinsic safety type, the increased safety type and the pouring sealing type to realize the anti-explosion function of the lamp, thereby increasing the application range of the lamp and enabling the lamp to be widely applied to small construction, daily maintenance and emergency rescue operation in anti-explosion places such as oil refining, chemical industry and oil field. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 Structure diagram of the explosion-proof portable mobile lamp of the present application;

[0017] Figure 2 Structure diagram of the lamp head assembly of the present application;

[0018] Figure 3 Exploded structure diagram of the lamp head assembly of the present application;

[0019] Figure 4 Sectional view of the explosion-proof lamp head of the present application;

[0020] Figure 5 Structure diagram of the display screen assembly of the present application;

[0021] Figure 6 Sectional view of the display screen front shell of the present application;

[0022] Figure 7 Structure diagram of the battery protection shell of the present application;

[0023] Figure 8 Sectional view of the battery assembly of the present application;

[0024] Figure 9 Structure diagram of the driving assembly of the present application;

[0025] Figure 10 Sectional view of the driving assembly of the present application;

[0026] Figure 11 Sectional view of the lifting rod assembly of the present application;

[0027] Figure 12 Structure diagram of the first lock catch of the present application;

[0028] Figure 13 Connection diagram of the driving assembly and the tripod assembly of the present application;

[0029] Figure 14 Structure diagram of the support leg in one direction of the present application;

[0030] Figure 15 Structure diagram of the support leg in another direction of the present application;

[0031] Figure 16 Structure diagram of the locking structure of the support leg of the present application;

[0032] Figure 17 Sectional view of the support leg of the present application. DETAILED DESCRIPTION

[0033] To enable those skilled in the art to more clearly understand the purpose, technical solution, and advantages of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0034] like Figure 1 As shown, in some embodiments of the present invention, the explosion-proof portable mobile lamp includes a lamp head assembly 10, a display screen assembly 30, a battery assembly 40, a drive assembly 50, a lifting rod assembly 20, and a tripod assembly 60.

[0035] like Figure 2 As shown, the lamp head assembly 10 includes a lamp holder 11 and an explosion-proof lamp head 12. The explosion-proof lamp head 12 is mounted on the lamp holder 11 via a vertical rotation mechanism 13 and a horizontal rotation mechanism 14, allowing for multi-angle adjustment of the explosion-proof lamp head 12 to achieve multi-angle lighting and avoid discomfort caused by glare. In this embodiment, the lamp head assembly 10 includes two explosion-proof lamp heads 12 arranged opposite each other. Each explosion-proof lamp head 12 has a strong magnet 15 (neodymium iron boron strong magnet) on its top. When the two explosion-proof lamp heads 12 are folded, the strong magnets 15 on the two explosion-proof lamp heads 12 attract each other, preventing the lamp heads from spreading out and making the overall structure compact. Of course, in other embodiments, the lamp head assembly 10 can also use a single explosion-proof lamp head 12 for lighting.

[0036] like Figure 3 As shown, the vertical rotation mechanism 13 includes a connecting seat 131 disposed on the lamp holder 11 and a vertical rotation joint 132. The vertical rotation joint 132 is pivotally connected to the connecting seat 131 by a bolt 133. The vertical rotation joint 132 can rotate 90° vertically with the bolt 133 as the rotation axis, thereby realizing the 90° vertical rotation of the explosion-proof lamp head 12.

[0037] The horizontal rotation mechanism 14 includes an arc-shaped groove 141, a pressure cap 142, a bushing 143, and a rotating shaft 144 disposed on the explosion-proof lamp head 12. The rotating shaft 144 is fixedly connected to the vertical rotating joint 132 as a whole. The bushing 143 is provided with an elastic block 1431, and the elastic block 1431 is provided with a protrusion 1432. The inner side of the arc-shaped groove 141 and the inner side of the pressure cap 142 are both provided with a groove 1411 that cooperates with the protrusion 1432. The vertical rotating joint 132 is provided with a limiting boss 134 at one end near the rotating shaft 144. The outer side of the bushing 143 at one end near the vertical rotating joint 132 is provided with a limiting protrusion 145 for cooperating with the limiting boss 134 for limiting. The pressure cap 142 is screwed onto the arc-shaped groove 141, and the protrusion 1432 engages with the groove 1411 to clamp and fix the bushing 143 between the arc-shaped groove 141 and the pressure cap 142. The rotating shaft 144 is rotatably sleeved within the bushing 143, and the limiting boss 134 and the limiting protrusion 145 cooperate to limit the rotation, allowing the explosion-proof lamp head 12 to rotate 300° horizontally. In this embodiment, the limiting boss 134 and the limiting protrusion 145 cooperate to prevent the explosion-proof lamp head 12 from rotating continuously in the same direction, causing wire tangling and damaging the cable. An O-ring is also provided between the bushing 143 and the rotating shaft 144 to increase damping during rotation and prevent direct wear failure between the bushing 143 and the rotating shaft 144.

[0038] like Figure 4 As shown, the explosion-proof lamp head 12 includes a heat sink 121, a lamp head end cover 122, a transparent part 123, a light source plate, and a lens. The transparent part 123 can be made of tempered glass or transparent PC (polycarbonate) sheet. The light source plate and lens are locked inside the heat sink 121 by screws. The heat sink is provided with a cable input port, and the cable input port is provided with a pressure ring 127 and a clamping nut 126. The light source plate input line passes through the cable input port to connect the explosion-proof lamp head 12 to the drive assembly 50.

[0039] The explosion-proof lamp holder 12 has a total power of 50W and is explosion-proof using an explosion-proof method. The light source board input wire passes through the pressure ring 127 and is locked and sealed by the clamping nut 126. The lamp holder end cover 122 and the transparent part 123 are sealed with epoxy resin. Figure 4 The lamp head end cap 122 and the heat sink 121 are connected as a whole by a thread, and an O-ring 125 is provided at the connection between the lamp head end cap 122 and the heat sink 121, ultimately forming a sealed explosion-proof chamber.

[0040] like Figures 5-6As shown, the display screen assembly 30 comprises a display screen housing arranged below the lamp holder 11, and the display screen housing is provided with a display screen and buttons. In the embodiment shown in the drawings, the display screen housing comprises a display screen front shell 31, a display screen rear cover 32 connected with the display screen front shell 31, and a display screen bottom cover 33 connected with the lower ends of the display screen front shell 31 and the display screen rear cover 32, and the display screen bottom cover 33 is provided with a through hole 331 for the lifting rod assembly 20 to pass through and a wire hole 332 for the cable to pass through. The outer side of the display screen front shell 31 is provided with a display screen 311 and buttons, and the buttons comprise a power switch button 312, a lightening button 313, a light dimming button 314 and a floodlighting button 315. The inner side of the display screen front shell 31 is provided with a display screen control cavity 34, and the display screen control cavity 34 is provided with a display screen main board 317 and a button main board 316 electrically connected with the display screen main board 317.

[0041] The light head illumination can be turned on or off through the power switch button 312, the light head spotlighting and floodlighting illumination modes can be adjusted through the floodlighting button 315, and the light brightness can be adjusted (1% adjustment for short pressing and 10% adjustment for long pressing) through the lightening button 313 and the light dimming button 314, so as to realize the control of the light illumination mode and brightness through the buttons and the display of information through the display screen 311. The display screen 311 is mainly used for displaying information such as the floodlighting mode, the brightness ratio, and the power percentage. The display screen 311 is also used for displaying the lamp power information, and the lamp power information can be checked at any time through the display screen 311, so that the lamp can be charged in time.

[0042] The buttons comprise button bodies (for example, the button body 3121 of the power switch button 312) arranged on the button main board 316 and button caps (for example, the button cap 3122 of the power switch button 312) arranged on the outer side of the display screen front shell 31 and corresponding to the button bodies.

[0043] The display screen control cavity 34 realizes explosion prevention in an intrinsically safe explosion-proof manner. The signal current and voltage of the display screen main board 317 and the key main board 316 installed in the display screen control cavity 34 are small, and the electric spark and thermal effect generated in the normal working state or the specified fault state or short circuit cannot ignite the explosive mixture. The opening of the display screen control cavity 34 is provided with a cover plate 318 coupled by a screw, and the connection between the cover plate 318 and the display screen control cavity 34 is provided with a sealing gasket 3181 to realize sealing. The wire hole 319 of the display screen control cavity 34 is provided with a wire hole plug 3191, and the cable connected with the display screen main board 317 and the driving assembly 50 passes through the wire hole plug 3191 and is in interference fit with the wire hole plug 3191 to realize sealing. The display screen front shell 31 is provided with a key hole corresponding to the key body on the key main board 316, and the key cap is in interference fit with the key hole to realize sealing. The display screen 311 is installed on the display screen front shell 31 by waterproof double-sided adhesive and is in sealed connection with the display screen control cavity 34.

[0044] As shown in Figure 1 、 7 -8, the battery assembly 40 includes a battery protection shell 41 fixedly connected to the lower side of the display screen bottom cover 33. The battery protection shell 41 is provided with three cylindrical battery cavities 42 arranged along the length direction of the battery protection shell 41. Each cylindrical battery cavity 42 is installed with six 21700 lithium batteries 44 connected in series. The explosion-proof portable mobile lamp in the embodiment uses three groups of batteries for power supply, and each group of battery includes six 21700 lithium batteries connected in series. Since the energy density of the 21700 lithium battery is high, the number of single batteries can be greatly reduced in use, and therefore, long-time high-power lighting of the lamp can be realized without greatly increasing the weight of the lamp.

[0045] The cylindrical battery cavity 42 realizes explosion prevention in an increased safety explosion-proof manner. The two ends of the cylindrical battery cavity 42 are respectively provided with a battery sealing plug 42, and the cable passes through the battery sealing plug 42 arranged on the end of the cylindrical battery cavity 42 away from the display screen assembly 30 to be connected with the driving assembly 50. The battery sealing plug 42 is in interference fit with the inner wall of the cylindrical battery cavity 42 to realize sealing, and the battery sealing plug 42 is in interference fit with the cable to realize sealing, thereby forming a closed increased safety chamber.

[0046] As shown in Figure 1 、 9 -10, the driving assembly 50 includes a driving box, a power board 53 poured in the driving box, and a charging interface 54 arranged on the driving box. The driving box is fixedly connected to the end of the battery protection shell 41 away from the display screen assembly 30. The power board 54 is electrically connected with the battery assembly 40, the display screen assembly 30, and the lamp head assembly 10 through the cable.

[0047] In the embodiment shown in the attached drawings, the drive box includes an upper drive box shell 51 (metal shell) and a lower drive box shell 52 (plastic shell). The upper drive box shell 51 is fixedly connected to the battery protective shell 41 by screws, and the lower drive box shell 52 is connected to the upper drive box shell 51 by screws. A buffer pad 55 is installed at the bottom of the lower drive box shell 52 by screws. The charging interface 54 is disposed on the upper drive box shell 51, and a sealing plug 541 is provided at the charging interface 54. The power board 53 is encapsulated (…). Figure 10 The encapsulated area (located at 531) is inside the lower shell 52 of the drive box. The upper shell 51 of the drive box is equipped with a wiring board 57. The encapsulated power board 53 is electrically connected to the battery assembly 40, the display assembly 30, and the lamp head assembly 10 through the wiring board 57. The upper shell 51 of the drive box is equipped with a cable passage hole, and the cable passage hole is equipped with a cable passage hole plug 58.

[0048] The drive assembly 50 achieves explosion protection through a potting-type explosion-proof method. The power board 53 is placed inside the lower shell 52 of the drive box, and the electronic components are covered by potting adhesive, thus sealing the entire power board 53 within the lower shell 52 of the drive box. The lower shell 52 of the drive box, with the power board 53 potted, is connected to the upper shell 51 of the drive box by screws and sealed by a sealing gasket 59, a wire hole plug 58, and a sealing plug 541 at the charging interface 54.

[0049] like Figure 1 As shown, the upper end of the lifting rod assembly 20 is fixedly connected to the lower end of the lamp holder 11 of the lamp head assembly 10. The lower end passes through the display screen housing and the battery protective housing 41 in sequence and is then fixedly connected to the drive box. The lamp head assembly 10 is connected to the drive assembly 50 by a spring wire. The spring wire passes through the center of the lifting rod assembly 20 and connects the lamp head assembly 10 and the drive assembly 50 together.

[0050] like Figure 11As shown, the lifting rod assembly 20 includes a first lifting rod 21, a second lifting rod 22, and a third lifting rod 22, all of which are hollow rods. The first lifting rod 21, the second lifting rod 22, and the third lifting rod 22 can be made of aluminum alloy, or other metals or alloy materials. The upper end of the first lifting rod 21 is fixedly connected to the lamp holder 11 of the lamp head assembly 10. The lower end of the first lifting rod 21 is connected to a first damping assembly 25, and the lower end of the first lifting rod 21 is fitted inside the second lifting rod 22, slidingly engaging with the second lifting rod 22. The upper end of the second lifting rod 22 is provided with a first latch 26 for locking the first lifting rod 21. The lower end of the second lifting rod 22 is connected to a second damping assembly 24, and the lower end of the second lifting rod 22 is fitted inside the third lifting rod 23, slidingly engaging with the third lifting rod 23. The upper end of the third lifting rod 23 is provided with a second latch 27 for locking the second lifting rod 22, and the lower end of the third lifting rod 23 is fixedly connected to the drive assembly 50.

[0051] The first damping assembly 25 includes a first damping ring 252 and a first connector 251. The upper end of the first connector 251 is fitted inside the first lifting rod 21 and secured by a set screw 253. The first damping ring 252 is fitted onto the outer side of the lower end of the first connector 251. The second damping assembly 24 includes a second damping ring 242 and a second connector 241. The upper end of the second connector 241 is fitted inside the second lifting rod 22 and secured by a set screw 243. The second damping ring 242 is fitted onto the outer side of the lower end of the second connector 241.

[0052] like Figure 12 As shown, the first locking buckle 26 includes a first fixed clamp 261, a first movable clamp 262 fixedly connected to the first fixed clamp 261, and a first wrench 264. The first fixed clamp 261 is locked and fixed to the upper end of the second lifting rod 22 by bolts. The first movable clamp 262 is sleeved on the outside of the first lifting rod 21, and a first inner bushing 263 is provided between the first movable clamp 262 and the first lifting rod 21. The bolt on the first movable clamp 262 is pivotally connected to the first wrench 264 through a pin. Rotating the first wrench 264 can loosen or lock the first movable clamp 262, thereby loosening or locking the first lifting rod 21. The second latch 27 has the same or similar structure as the first latch 26. That is, the second latch 27 includes a second fixed clamp, a second movable clamp fixedly connected to the second fixed clamp, and a second wrench. The second fixed clamp is locked and fixed to the upper end of the third lifting rod 23 by bolts. The second movable clamp is sleeved on the outside of the second lifting rod 22, and a second inner bushing is provided between the second movable clamp and the second lifting rod 22. The bolt on the second movable clamp is pivotally connected to the second wrench through a pin. Rotating the second wrench can loosen or tighten the second movable clamp, thereby loosening or tightening the second lifting rod 22.

[0053] In the embodiment, the first lifting rod 21 is in sliding fit with the second lifting rod 22, and the second lifting rod 22 is in sliding fit with the third lifting rod 23, and the extension and contraction of the lifting rod assembly 20 are realized by locking or loosening the first and second buckles 26 and 27, and then the extension and contraction of the lamp are realized. The whole lamp can be up to 2 meters after being unfolded, and the illumination work of a small class in a region can be realized. After being folded, the height of the whole lamp is not more than 0.9 meters, so that the lamp structure is compact, the lamp appearance size is small, and the weight is light, and the lamp is convenient to carry. In addition, the first damping ring 252 in the first damping assembly 25 and the second damping ring 242 in the second damping assembly 24 play a certain damping role in the process of folding the lifting rod, and the lamp head can be prevented from being quickly lowered to pinch the hand.

[0054] As shown in Figures 13-17 The tripod support assembly 60 includes three support legs 61 which are pivoted to the driving box. The support legs 61 can be unfolded / folded by rotating the support legs 61. The support legs 61 are provided with a locking structure for locking the positions of the support legs 61 when the support legs 61 are unfolded. The outer side of the upper shell 51 of the driving box is provided with a support leg connecting seat 56. The support leg connecting seat 56 is provided with a limiting groove 561. The support legs 61 are provided with support leg joints 62 which are pivoted to the support leg connecting seat 56 by bolts. The locking structure includes a spring pin 63, a spring 64 and a buckle 65. The spring pin 63 and the spring 64 are arranged in the support leg 64. The buckle 65 is fixedly connected with the spring pin 63 by penetrating a strip-shaped hole 611 arranged on the support leg 61. The spring pin 63 can slide back and forth along the length direction of the support leg 61 and is limited by the buckle 65. The spring pin 63 is extended to abut against the support leg connecting seat 56 at the support leg joint 62 under the driving of the spring 64, and is clamped into the limiting groove 561 when aligning with the limiting groove 561.

[0055] When the tripod support assembly 60 is in the folded state, the spring pin 63 is extruded by the support leg connecting seat 56, and the spring 64 is contracted. When the tripod support assembly 60 is unfolded, the spring pin 63 is clamped into the limiting groove 561 of the support leg connecting seat 56 by the spring 64 when aligning with the limiting groove 561 under the rotation of the support leg 61, and the support leg 61 is locked so that the support leg 61 cannot rotate again. The buckle 65 is buckled downward along the support leg 61, the spring pin 63 moves downward with the buckle 65 to extrude the spring 64, and the spring pin 63 is separated from the limiting groove 561. The tripod support assembly 60 can be folded by rotating the support leg 61 to the original position again. The tripod support assembly 60 in the embodiment ingeniously uses the locking structure to lock the positions of the support legs 61 when the support legs 61 are unfolded, and the locking and unlocking are simple, so that the unfolding and folding operations of the tripod support assembly 60 are convenient, and the whole lamp structure is compact after being folded, which is convenient to carry.

[0056] Again referring to Figures 14-17In a preferred embodiment of the present application, the foot joint 62 is connected with a cylindrical tube 66, which is provided with a second slot 661. The foot joint 62 is fixed to one end of the foot 61 by a foot cover 67, and the cylindrical tube 66 is inserted into the foot 61. The spring pin 63 and the spring 64 are arranged in the cylindrical tube 66. The cylindrical tube 66 is provided with a spring plug 641 at the end away from the foot joint 62. The knob 65 is fixedly connected with the spring pin 63 by passing through the slot 611 and the second slot 661 arranged on the foot 61. The spring pin 63 can slide back and forth along the length direction of the cylindrical tube 66 and is limited by the knob 65.

[0057] Referring again to Figure 5 , 7 , 14-17, in a preferred embodiment of the present application, the foot 61 is provided with an adjusting rod 69 at the end away from the driving box, which is threadedly connected with the foot 61. The adjusting rod 69 is provided with a spherical groove 691. The display screen bottom cover 33 is provided with an elastic limiting protrusion 333 for limiting the spherical groove 691. The battery protection shell 41 is provided with three recesses 45 along the length direction of the battery protection shell 41 on the outer side corresponding to the three feet. The outer side of the battery protection shell 41 is provided with a handle 46 in a screwing manner. When the tripod support assembly 60 is folded, the feet 61 are folded on the outer side of the battery protection shell 41 and are placed in the recesses 45. The spherical groove 691 on the adjusting rod 69 is clamped and limited with the elastic limiting protrusion 333 on the display screen bottom cover 33, so as to avoid the spread of the feet 61.

[0058] The foot 61 is further provided with a foot bottom cover 68 at the end away from the foot joint 62. The foot bottom cover 68 is screw-connected with the foot 61. The foot bottom cover 68 is provided with an avoiding hole for the adjusting rod 69.

[0059] The above description is only a preferred embodiment of the present application, and does not limit the present application in any form. Those skilled in the art can make various equivalent changes and improvements on the basis of the above-described embodiment. Any equivalent changes or modifications made within the scope of the claims shall fall within the protection scope of the present application.

Claims

1. An explosion-proof portable mobile light, characterized in that, The explosion-proof portable mobile light includes: A lamp holder assembly includes a lamp holder and an explosion-proof lamp holder, the explosion-proof lamp holder being mounted on the lamp holder via a vertical rotation mechanism and a horizontal rotation mechanism; A display screen assembly is explosion-proof in an intrinsically safe manner. The display screen assembly includes a display screen housing located below a lamp holder, and the display screen housing is provided with a display screen and buttons. A battery assembly includes a battery protective shell fixedly connected to the lower part of the display screen housing. The battery protective shell has three cylindrical battery cavities arranged along the length of the battery protective shell. The cylindrical battery cavities are explosion-proof in an increased safety type. Each cylindrical battery cavity is equipped with six 21700 lithium batteries connected in series. Each end of the cylindrical battery cavity is provided with a battery sealing plug. A driving assembly includes a driving box, a power board encapsulated inside the driving box, and a charging interface disposed on the driving box. The driving box is fixedly connected to the end of the battery protective shell away from the display screen assembly. The power board is electrically connected to the battery assembly, the display screen assembly, and the lamp head assembly respectively via cables. A lifting rod assembly, the upper end of which is fixedly connected to the lower end of the lamp holder, and the lower end passes through the display screen housing and the battery protective housing in sequence before being fixedly connected to the drive box; A tripod assembly includes three legs pivotally connected to the drive box. The legs can be rotated to extend / retract. The legs are provided with locking structures for locking the position of the legs when they are extended. The drive box has a support foot connecting seat on its outer side, and a limiting groove on the support foot. The support foot has a support foot connector, which is pivotally connected to the support foot connecting seat by bolts. The locking structure includes a spring pin, a spring, and a latch. The spring pin and spring are disposed inside the support foot. The latch passes through a strip hole on the support foot and is fixedly connected to the spring pin. The spring pin can slide back and forth along the length of the support foot and is limited by the latch. Driven by the spring, the spring pin extends to the support foot connector and abuts against the support foot connecting seat, and is engaged in the limiting groove when aligned with it.

2. The explosion-proof portable mobile lamp as described in claim 1, characterized in that, The vertical rotation mechanism includes a connecting seat mounted on the lamp holder and a vertical rotation joint pivotally connected to the connecting seat; the horizontal rotation mechanism includes an arc-shaped groove, a pressure cap, a bushing, and a rotating shaft mounted on the explosion-proof lamp head. The rotating shaft is fixedly connected to the vertical rotation joint and is rotatably sleeved inside the bushing. The pressure cap covers the arc-shaped groove and clamps the bushing between the arc-shaped groove and the pressure cap. The bushing is provided with an elastic block and a protrusion. The inner side of the arc-shaped groove and the inner side of the pressure cap are both provided with grooves that mate with the protrusions.

3. The explosion-proof portable mobile lamp as described in claim 2, characterized in that, An O-ring is provided between the bushing and the rotating shaft; a limiting boss is provided at one end of the vertical rotary joint near the rotating shaft, and a limiting protrusion is provided on the outer side of the bushing near the end of the vertical rotary joint for cooperating with the limiting boss for limiting.

4. The explosion-proof portable mobile lamp as described in claim 1, characterized in that, The display screen housing includes a front cover, a rear cover and a bottom cover connected to the front cover. The bottom cover is connected to the lower end of the front and rear covers and has a through hole for the lifting rod assembly to pass through. The outer side of the front cover has a display screen and buttons, including a power switch, a brightness adjustment button, a dimming button and a focus adjustment button. The inner side of the front cover has a display screen control cavity, which contains a display screen mainboard and a button mainboard.

5. The explosion-proof portable mobile lamp as described in claim 1, characterized in that, The driver box includes an upper casing and a lower casing that mates with the upper casing. The charging interface is located on the upper casing and is provided with a sealing plug. The power board is encapsulated inside the lower casing. A wiring board is provided inside the upper casing. The power board is electrically connected to the battery assembly, the display assembly, and the lamp head assembly through the wiring board. The upper casing has a cable passage hole for cables to pass through, and the cable passage hole is provided with a cable passage plug.

6. The explosion-proof portable mobile lamp as described in claim 1, characterized in that, The lifting rod assembly includes a first lifting rod, a second lifting rod, and a third lifting rod, all of which are hollow rods. The upper end of the first lifting rod is fixedly connected to the lamp holder of the lamp head assembly. The lower end of the first lifting rod is connected to a first damping component, and the lower end of the first lifting rod is fitted inside the second lifting rod and slidably engaged with the second lifting rod. The upper end of the second lifting rod is provided with a first latch for locking the first lifting rod. The lower end of the second lifting rod is connected to a second damping component, and the lower end of the second lifting rod is fitted inside the third lifting rod and slidably engaged with the third lifting rod. The upper end of the third lifting rod is provided with a second latch for locking the second lifting rod, and the lower end of the third lifting rod is fixedly connected to a drive assembly.

7. The explosion-proof portable mobile lamp as described in claim 6, characterized in that, The first damping assembly includes a first damping ring and a first connector. The upper end of the first connector is fitted inside the first lifting rod and locked by a set screw. The first damping ring is fitted onto the outer side of the lower end of the first connector. The second damping assembly includes a second damping ring and a second connector. The upper end of the second connector is fitted inside the second lifting rod and locked by a set screw. The second damping ring is fitted onto the outer side of the lower end of the second connector.

8. The explosion-proof portable mobile lamp as described in claim 1, characterized in that, The support joint is connected to a cylindrical tube with a second slotted hole. The support joint is fixed to one end of the support leg by a support leg cap, and the cylindrical tube is inserted into the support leg. The spring pin and spring are set inside the cylindrical tube. A spring plug is set at the end of the cylindrical tube away from the support joint. The handle passes through the slotted hole and the second slotted hole on the support leg and is fixedly connected to the spring pin. The spring pin can slide back and forth along the length of the cylindrical tube and is limited by the handle.

9. The explosion-proof portable mobile lamp as described in claim 8, characterized in that, The end of the support leg away from the drive box is provided with an adjusting rod that is threadedly connected to the support leg. The adjusting rod is provided with a spherical groove. The display screen housing includes a front cover of the display screen, a rear cover of the display screen that is connected to the front cover of the display screen, and a bottom cover of the display screen. The bottom cover of the display screen is connected to the lower end of the front cover of the display screen and the rear cover of the display screen. The bottom cover of the display screen is provided with an elastic limiting protrusion for limiting the movement by engaging with the spherical groove.

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