An energy-saving LED mining lamp

By adopting a magnet barrier design and automatic pressure regulating system in LED industrial and mining lamps, the seal failure problem caused by thermal expansion and contraction is solved, the safety and service life are improved, and the invasion of water vapor and combustible gases are reduced.

CN118912468BActive Publication Date: 2025-04-22ZHONGSHAN CHUANGAN NAI LIGHTING CO LTD
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Patent Information

Application Number
CN202411165181.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-08-23
Publication Date
2025-04-22
Estimated Expiration
2044-08-23

AI Technical Summary

Technical Problem

When existing LED industrial and mining lamps are used underground, the sealing structure fails due to thermal expansion and contraction, which may introduce water vapor and combustible gases, affecting the brightness and safety of the light. At the same time, the transparent plate may experience cracks due to thermal expansion and contraction and affect the luminous effect.

Method used

The magnet insulation lampshade design is equipped with a light emitting groove, installation groove, reflective film, cavity, ventilation hole, pressure regulating piston, temperature measurement assembly and magnetic absorption adjustment mechanism. Through the cooperation of the temperature measurement assembly and magnetic absorption adjustment mechanism, the pressure inside the magnet insulation lampshade is automatically adjusted, reducing the impact of thermal expansion and contraction on the sealing mechanism, and assisting cooling through the heat dissipation mechanism to reduce heat accumulation.

Benefits of technology

It effectively reduces the invasion of external water vapor and combustible gases, improves the stability of the sealing mechanism, reduces the possibility of explosion, improves the safety of industrial and mining lamps, and avoids the impact of thermal expansion and contraction on the transparent plate, extending the service life of the lamp.

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Abstract

The present invention belongs to the technical field of lamp protection, and in particular, relates to an energy-saving LED mining lamp, comprising a magnetic isolation lampshade, wherein a light emitting groove and a mounting groove are provided inside the magnetic isolation lampshade, a reflective film is fixedly installed on the groove wall of the light emitting groove, a plurality of cavities are provided inside the magnetic isolation lampshade, and the side walls of the reflective film are respectively provided with air vents together with the lower side of the cavity wall of each cavity, and a pressure regulating piston is slidably provided at a position above the air vent on the same side inside each cavity, and a temperature measuring component is installed together with the light emitting groove and the mounting groove. The present invention can effectively reduce the influence of thermal expansion and contraction on the sealing and light emitting effect of mining lamps, improve the sealing stability, have good waterproof and gas-proof effects, reduce the possibility of explosion, improve the safety of mining lamps, assist the mining lamps in heat dissipation during the pressure adjustment process, and can detect the concentration of combustible gas at the head of personnel in real time during heat dissipation, thereby improving the safety of workers.
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Description

Technical Field

[0001] The invention belongs to the technical field of lamp protection, and in particular relates to an energy-saving LED mining lamp. Background Art

[0002] Head-mounted mining lamps can be worn directly on the miner's head, freeing the miner's hands. They use high-brightness LED light sources to provide bright and uniform light. Due to the complex environment underground, the protection of LED mining lamps is very important.

[0003] At present, due to the poor air circulation underground and the soil layer being easily permeable to water, the underground environment is relatively humid and the moisture in the air is relatively large. Therefore, underground mining lamps need to maintain a good sealing effect to prevent water vapor from invading the interior of the mining lamps and affecting the normal operation of the lamps. A transparent plate is installed on the luminous surface of the mining lamp. Now, a sealing structure is usually added to the transparent plate to prevent water vapor from invading from here, such as a moisture-proof device for LED mining lamps disclosed in patent publication number CN218846078U;

[0004] The current sealing structure usually uses a pressure strip with a sealing strip or sealant to lock the transparent plate on the light-emitting surface of the lampshade to achieve the installation of the transparent plate and maintain the sealing between the transparent plate and the lampshade. However, since the mining lamp generates high heat when it is working, the air inside the mining lamp will expand due to the heat, thereby squeezing the sealing strip and the transparent plate. After the work is finished, the temperature of the mining lamp drops, and the sealing strip and the transparent plate will rebound. As the use time increases, under the effect of thermal expansion and cooling contraction, even if there is a pressure strip to press the sealing strip, water vapor will enter the lampshade. There is also a certain possibility that water vapor will invade the interior of the mining lamp from the joint between the transparent plate and the lampshade. Water vapor will affect the brightness of the light and shorten the service life of the lamp. There are flammable gases underground. Once the flammable gas invades and is affected by the high heat generated when the lamp is working, an explosion may occur, which poses a certain safety hazard. At the same time, the transparent plate is subjected to repeated thermal expansion and contraction, which may cause tiny cracks in the plate. These cracks will cause irregular phenomena such as scattering and refraction of light when it passes through, thereby reducing the transmittance of light, reducing transparency and affecting the luminous effect. Summary of the invention

[0005] The object of the present invention is to provide an energy-saving LED mining lamp in view of the above problems.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: an energy-saving LED mining lamp, comprising a magnetic isolation lampshade, wherein a light-emitting groove and a mounting groove are arranged inside the magnetic isolation lampshade, a reflective film is fixedly installed on the groove wall of the light-emitting groove, a plurality of cavities are opened inside the magnetic isolation lampshade, and the side walls of the reflective film and the lower sides of the cavity walls of each cavity are respectively provided with air vents, and a pressure regulating piston is slidably arranged at a position above the air vent on the same side inside each cavity, a temperature measuring component is installed together with the light-emitting groove and the mounting groove, and a temperature measuring component is fixedly installed at the bottom of the mounting groove. There is a control main board, and the interior of each cavity is installed with a magnetic adjustment mechanism together with the pressure-regulating piston on the same side. The temperature measuring component is electrically connected to each magnetic adjustment mechanism through the control main board. The magnetic isolation lampshade is installed with multiple heat dissipation mechanisms connected with the cavity, and the outer wall of the magnetic isolation lampshade is installed with an exhaust detection mechanism connected with each heat dissipation mechanism. A light source is fixedly installed at the bottom of the light-emitting groove, a sealing mechanism is installed at the light-emitting end of the magnetic isolation lampshade, a power supply mechanism is installed inside the installation groove, and a head-mounted clamp assembly is installed on the outer wall of the magnetic isolation lampshade.

[0007] Preferably, the temperature measuring component includes two thermistor columns, the bottom of the mounting groove and the light-emitting groove are jointly provided with two mounting holes, and a group of insulating pads are fixedly installed inside the two mounting holes, the two thermistor columns are fixedly connected to a group of insulating pads on the same side, and the two thermistor columns are electrically connected to the control main board.

[0008] Preferably, each of the magnetic adjustment mechanisms includes a support ring fixedly arranged inside the cavity, and a non-magnetic spring is fixedly arranged between the support ring and the pressure-regulating piston, an iron core is fixedly installed on the end face of the pressure-regulating piston, and one end of the iron core slides through the support ring, an electromagnetic column is fixedly installed on the upper cavity wall of the cavity, and the two thermistor columns are electrically connected to the electromagnetic column through the control mainboard.

[0009] Preferably, each of the heat dissipation mechanisms includes an exhaust groove opened at the lower end of the side wall of the magnetic isolation lampshade, and a heat exchange tube is fixedly inserted into the groove wall of the exhaust groove, the air inlet end of the heat exchange tube is connected to the cavity on the same side, and the air inlet end of the heat exchange tube is higher than the support ring on the same side, and the cavity wall of the cavity is located above the support ring on the same side. An air inlet hole is opened at a position, and a one-way valve is installed inside the air inlet hole and the exhaust groove.

[0010] Preferably, the exhaust detection mechanism includes an annular cover fixedly mounted on the lower end of the outer side wall of the magnetic isolation lampshade, each of the exhaust grooves is connected to the annular cover, an exhaust hole is opened on one side wall of the annular cover, and a plurality of different combustible gas detection probes are fixedly plugged into the end face of the annular cover, and the detection end of each of the combustible gas detection probes is arranged on the inner side of the annular cover, a buzzer is fixedly installed on the groove wall of the mounting groove, and each combustible gas detection probe is electrically connected to the buzzer through the control main board.

[0011] Preferably, the sealing mechanism includes a fixing ring fixedly installed on the end of the magnetic isolation lampshade, an annular sealing groove is opened at the lower end of the fixing ring, and a sealing gasket is fixedly installed at the bottom of the annular sealing groove, a sealing strip is installed at the lower end of the fixing ring, and the end face of the sealing strip is abutted against the sealing gasket, and a transparent plate is installed at the end face of the fixing ring above the sealing gasket.

[0012] Preferably, the power supply mechanism includes a battery mounting cover fixedly installed inside the mounting groove, and a removable battery is installed inside the battery mounting cover, a removable sealing cover is installed at the notch of the mounting groove, and a plurality of circular holes are opened on the side wall of the battery mounting cover, and the interior of the battery mounting cover is connected with the interior of the light-emitting groove through the circular holes and the mounting holes.

[0013] Preferably, an adapter is fixedly plugged into the bottom of the battery mounting cover, an adapter is installed at the end of the battery, and the adapter is plugged into the adapter, and the battery is electrically connected to the control mainboard via the adapter and the adapter.

[0014] Compared with existing technologies, the advantages of an energy-saving LED mining lamp are:

[0015] 1. Through the cooperation of the magnetic isolation lampshade, light emitting groove, installation groove, reflective film, sealing mechanism, power supply mechanism, light source and head-mounted clamp assembly, it can be used as a head-mounted mining lamp, and through the cooperation of the cavity, vent, pressure regulating piston, temperature measuring assembly, control main board and magnetic adjustment mechanism, when the light source is started, the pressure inside the magnetic isolation lampshade can be automatically adjusted based on the temperature inside the magnetic isolation lampshade, so that the pressure inside the magnetic isolation lampshade can be kept in a relatively stable state both when in use and when not in use, thereby effectively reducing the influence of thermal expansion and contraction on the sealing mechanism, improving the stability of the sealing mechanism, and effectively reducing the intrusion of external water vapor and combustible gas into the magnetic isolation lampshade. It has good waterproof and gas-proof effects, reduces the possibility of explosion, and improves the safety of mining lamps. At the same time, it can avoid as much as possible the phenomenon that the transparent plate in the sealing mechanism affects the luminous effect due to thermal expansion and contraction.

[0016] 2. Through the heat dissipation mechanism, the temperature inside the magnetic isolation lampshade can be assisted to be cooled down when the voltage inside the magnetic isolation lampshade is adjusted based on the temperature change, thereby effectively avoiding the influence of heat accumulation on the industrial and mining lamps, and there is no need to add additional heat dissipation appliances, which is conducive to energy saving and consumption reduction.

[0017] 3. Through the exhaust detection mechanism, the concentration of combustible gas in the air around the head of personnel can be detected during heat dissipation and exhaust. When the concentration of combustible gas exceeds the standard, personnel will be automatically reminded to leave the area, thereby improving the safety of workers and achieving good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of an energy-saving LED mining lamp provided by the present invention;

[0019] Figure 2 It is a schematic diagram of the internal structure of a magnetic-insulating lampshade of an energy-saving LED mining lamp provided by the present invention;

[0020] Figure 3 It is a structural schematic diagram of a temperature measuring component of an energy-saving LED mining lamp provided by the present invention;

[0021] Figure 4 It is a schematic diagram of the internal structure of a cavity of an energy-saving LED mining lamp provided by the present invention;

[0022] Figure 5 The present invention provides an energy-saving LED mining lamp. Figure 4 A magnified view of the structure of part A.

[0023] In the figure: 1 magnetic isolation lampshade, 2 light emitting groove, 3 mounting groove, 4 reflective film, 5 cavity, 6 vent hole, 7 pressure regulating piston, 8 temperature measuring component, 81 thermistor column, 82 mounting hole, 83 insulating pad, 9 control main board, 10 magnetic suction adjustment mechanism, 101 support ring, 102 non-magnetic spring, 103 iron core, 104 electromagnetic column, 11 heat dissipation mechanism, 111 exhaust groove, 112 heat exchange tube, 113 air inlet, 114 one-way valve, 12 row Gas detection mechanism, 121 annular cover, 122 exhaust hole, 123 combustible gas detection probe, 124 buzzer, 13 light source, 14 sealing mechanism, 141 fixing ring, 142 annular sealing groove, 143 sealing gasket, 144 sealing strip, 145 transparent plate, 15 power supply mechanism, 151 battery installation cover, 152 battery, 153 sealing cover plate, 154 round hole, 16 head wearing hoop assembly, 17 adapter, 18 adapter. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] like Figure 1-Figure 5As shown, an energy-saving LED mining lamp includes a magnetic isolation lampshade 1, which is made of a material with good thermal conductivity and can meet the heat dissipation requirements of a lamp source 13 and a battery 152. A headband assembly 16 is installed on the outer wall of the magnetic isolation lampshade 1. The headband protection assembly 16 includes components such as a band, an adjustment structure, and a support structure. The band of the band is adjusted by an adjustment mechanism to fix the entire device on the helmet on the head, and the support structure is used to improve the stability of the entire headband assembly 16. This is an existing mature technology, so it will not be described here. A light-emitting groove 2 and an installation groove 3 are provided inside the magnetic isolation lampshade 1. A reflective film 4 is fixedly installed on the groove wall of the light-emitting groove 2. A plurality of cavities 5 are opened inside the magnetic isolation lampshade 1. The side walls of the reflective film 4 are respectively connected to the cavities of each cavity 5. A vent hole 6 is commonly provided on the lower side of the wall, and a pressure regulating piston 7 is slidably provided at a position above the vent hole 6 on the same side inside each cavity 5. A temperature measuring component 8 is commonly installed on the light emitting groove 2 and the mounting groove 3. The temperature measuring component 8 includes two thermistor columns 81. Two mounting holes 82 are commonly provided on the bottom of the mounting groove 3 and the light emitting groove 2, and a group of insulating pads 83 are fixedly installed inside the two mounting holes 82. The two thermistor columns 81 are fixedly connected to a group of insulating pads 83 on the same side, and the two thermistor columns 81 are electrically connected to the control main board 9. The higher the temperature at the thermistor column 81, the lower its own resistance. The outer side of the thermistor column 81 is coated with an insulating material with good thermal conductivity (not shown in the figure) to insulate and protect the outer side of the thermistor column 81.

[0026] A control mainboard 9 is fixedly installed at the bottom of the installation groove 3, and a magnetic adjustment mechanism 10 is installed inside each cavity 5 together with the pressure-regulating piston 7 on the same side. The temperature measuring component 8 is electrically connected to each magnetic adjustment mechanism 10 through the control mainboard 9. Each magnetic adjustment mechanism 10 includes a support ring 101 fixedly arranged inside the cavity 5, and a non-magnetic spring 102 is fixedly arranged between the support ring 101 and the pressure-regulating piston 7. An iron core 103 is fixedly installed on the end face of the pressure-regulating piston 7, and one end of the iron core 103 slides through the support ring 101. An electromagnetic column 104 is fixedly installed on the upper cavity wall of the cavity 5. Two thermistor columns 81 are electrically connected to the electromagnetic column 104 through the control mainboard 9. When the electromagnetic column 104 is energized, it will generate magnetic force, so that it can absorb the iron core 103 on the same side to drive the pressure-regulating piston 7 to move upward, and the greater the current passed, the greater the magnetic force generated by the electromagnetic column 104.

[0027] The magnetic isolation lampshade 1 is provided with a plurality of heat dissipation mechanisms 11 connected with the cavity 5, each heat dissipation mechanism 11 comprises an exhaust groove 111 provided at the lower end of the side wall of the magnetic isolation lampshade 1, and a heat exchange tube 112 is fixedly inserted into the groove wall of the exhaust groove 111, an air inlet end of the heat exchange tube 112 is connected with the cavity 5 on the same side, and the air inlet end of the heat exchange tube 112 is higher than the support ring 101 on the same side, an air inlet hole 113 is provided on the cavity wall of the cavity 5 above the support ring 101 on the same side, and a one-way valve 114 is installed inside the air inlet hole 113 and the exhaust groove 111, the magnetic isolation lampshade 1 can exchange the heat inside it with the cold air inside the heat exchange tube 112, so as to realize the cooling of the inside of the magnetic isolation lampshade 1, and the function of the heat dissipation mechanism 11 is to improve the heat dissipation efficiency of the magnetic isolation lampshade 1 and assist the magnetic isolation lampshade 1 in heat dissipation.

[0028] The outer wall of the magnetic isolation lampshade 1 is installed with an exhaust detection mechanism 12 connected with each heat dissipation mechanism 11, and the exhaust detection mechanism 12 includes an annular cover 121 fixedly sleeved on the lower end of the outer wall of the magnetic isolation lampshade 1, and each exhaust groove 111 is connected with the annular cover 121, and an exhaust hole 122 is opened on one side wall of the annular cover 121. A plurality of different combustible gas detection probes 123 are fixedly plugged into the end face of the annular cover 121, and the detection end of each combustible gas detection probe 123 is arranged on the inner side of the annular cover 121. A buzzer 124 is fixedly installed on the groove wall of the installation groove 3, and each combustible gas detection probe 123 is electrically connected to the buzzer 124 through the control main board 9. The combustible gas detection probe 123 includes a methane detection probe, a carbon monoxide detection probe, a hydrogen sulfide detection probe, etc. The methane detection probe determines the methane concentration by measuring the degree of methane's absorption of infrared light of a specific wavelength. The hydrogen sulfide detection probe is based on the oxidation-reduction reaction of hydrogen sulfide gas on the electrode to generate an electrical signal proportional to the hydrogen sulfide concentration. The hydrogen sulfide concentration is detected by measuring and converting the electrical signal. The carbon monoxide detection probe generates an electric current through the oxidation-reduction reaction of carbon monoxide on the electrode. When each combustible gas detection probe 123 detects that the corresponding gas concentration exceeds the standard, it will transmit an electrical signal to the control main board 9. After receiving the electrical signal, the control main board 9 will immediately control the buzzer 124 to work. This is an existing mature technology, so it will not be elaborated here.

[0029] A light source 13 is fixedly installed at the bottom of the light-emitting groove 2, and a sealing mechanism 14 is installed at the light-emitting end of the magnetic-isolating lampshade 1. The sealing mechanism 14 includes a fixing ring 141 fixedly installed at the end of the magnetic-isolating lampshade 1, and an annular sealing groove 142 is opened at the lower end of the fixing ring 141, and a sealing gasket 143 is fixedly installed at the bottom of the annular sealing groove 142. A sealing strip 144 is installed at the lower end of the fixing ring 141, and the end face of the sealing strip 144 is abutted against the sealing gasket 143. A transparent plate 145 is installed at the position above the end face of the fixing ring 141 above the sealing gasket 143. The transparent plate 145 can seal and protect the inside of the light-emitting groove 2, and the sealing gasket 143 and the sealing strip 144 can improve the sealing at the transparent plate 145. The sealing strip 144 is connected to the fixing ring 141 by means of screws or the like.

[0030] A power supply mechanism 15 is installed inside the mounting groove 3, and the power supply mechanism 15 includes a battery mounting cover 151 fixedly installed inside the mounting groove 3, and a detachable battery 152 is installed inside the battery mounting cover 151, and a detachable sealing cover plate 153 is installed at the notch of the mounting groove 3. The side wall of the battery mounting cover 151 is provided with multiple circular holes 154, and the interior of the battery mounting cover 151 is connected with the interior of the light-emitting groove 2 through the circular holes 154 and the mounting holes 82. An annular sealing gasket (not shown in the figure) is provided at the sealing cover plate 153, which is used to improve the sealing line between the sealing cover plate 153 and the mounting groove 3. The battery 152 can be disassembled and replaced, and the battery mounting cover 151 is made of explosion-proof material.

[0031] An adapter seat 17 is fixedly inserted at the bottom of the battery mounting cover 151, an adapter 18 is installed at the end of the battery 152, and the adapter 18 is plugged into the adapter seat 17. The battery 152 is electrically connected to the control main board 9 through the adapter seat 17 and the adapter 18. The adapter 18 and the adapter seat 17 can facilitate the electrical connection between the battery 152 and the control main board 9 without affecting the convenience of disassembly and assembly of the battery 152.

[0032] The operating principle of the present invention is described as follows: before going down the well, the worker first opens the sealing cover 153, puts the charged battery 152 into the battery installation cover 151, and plugs the adapter 17 and the adapter 18, then installs and closes the sealing cover 153, and wears it on the head through the headband assembly 16, and then starts the control mainboard 9, which can supply power to the light source 13, and the light emitted by the light source 13 is emitted through the transparent plate 145;

[0033] At the beginning, since the light source 13 and the battery 152 have just started working, the temperature generated is not high. At this time, the pressure generated by the heat expansion of the air inside the magnetic isolation lampshade 1 is small. As the temperature generated by the light source 13 and the battery 152 gradually increases, the thermal expansion pressure inside the magnetic isolation lampshade 1 gradually increases. At this time, the temperature at the two thermistor columns 81 also increases synchronously, and the resistance value of the thermistor column 81 itself gradually decreases with the increase in temperature. At this time, the current passed into each electromagnetic column 104 also increases synchronously, so the magnetic attraction generated by each electromagnetic column 104 will become larger and larger with the increase in temperature. After the electromagnetic column 104 is energized to generate magnetic attraction, it will attract the iron core 103 on the same side to drive the pressure regulating piston 7 on the same side to move upward. At this time, part of the air inside the magnetic isolation lampshade 1 is drawn into the cavity 5 through the vent 6, thereby reducing the pressure inside the magnetic isolation lampshade 1 and moving the magnetic isolation lampshade 1 The pressure increased by the internal expansion due to heat is offset. During use, if the temperature drops, the temperature at the thermistor column 81 drops. At this time, the resistance of the thermistor column 81 increases, which causes the current passing into the electromagnetic column 104 to decrease. At this time, the magnetic attraction of the electromagnetic column 104 to the iron core 103 decreases. Under the action of the non-magnetic spring 102, the pressure regulating piston 7 will move back a certain distance, so that part of the air drawn into the cavity 5 is pushed back into the magnetic isolation lampshade 1. By reducing the pressure inside the magnetic isolation lampshade 1 when the temperature rises and increasing the pressure inside the magnetic isolation lampshade 1 when the temperature drops, the stability of the pressure on the transparent plate 145 can be effectively maintained, so that the transparent plate 145 and the sealing gasket 143 will not be repeatedly deformed due to thermal expansion and contraction, resulting in sealing failure, thereby improving the sealing stability at the transparent plate 145, and having good waterproof and dustproof effects. In addition, the transparent plate 145 is not easy to deform and produce cracks that affect the luminous effect.

[0034] At the same time, when the electromagnetic column 104 attracts the iron core 103 and drives the pressure regulating piston 7 to move upward, under the action of the two one-way valves 114, the pressure regulating piston 7 will squeeze the air in the upper space of the cavity 5 into the heat exchange tube 112 on the same side. When the air passes through the heat exchange tube 112, it can exchange heat with the magnetic isolation lampshade 1 (where the magnetic isolation lampshade 1 mainly relies on its own thermal conductivity to dissipate the heat generated by the lamp source 13 and the battery 152, and when the pressure regulating piston 7 moves up and down, it can draw external cold air into the cavity 5 and the heat exchange tube 112. The cold air can flow to a certain extent inside the magnetic isolation lampshade 1, and the flowing cold air can assist the heat of the magnetic isolation lampshade 1 to dissipate quickly, thereby achieving the effect of assisting the cooling of the inside of the magnetic isolation lampshade 1). When the magnetic attraction of the electromagnetic column 104 decreases, the non-magnetic spring 102 will push the pressure regulating piston 7 to move back. At this time, due to the increase in the space of the cavity 5 above the pressure regulating piston 7, the external cold air will be replenished into the cavity 5 through the air inlet 113, so that when the pressure regulating piston 7 moves up again, the heat inside the magnetic isolation lampshade 1 will continue to be dissipated.

[0035] The air exhausted through the exhaust slot 111 will enter the annular cover 121 and finally be exhausted through the exhaust hole 122. The air entering the annular cover 121 will contact each combustible gas detection probe 123. The combustible gas detection probe 123 can detect whether the air passing through the annular cover 121 contains combustible gas, and automatically transmit an electrical signal to the control main board 9 when the concentration of the combustible gas is too high. When the control main board 9 receives the electrical signal from the combustible gas detection probe 123, the control main board 9 will immediately control the buzzer 124 to start working. When the personnel hear the buzzer 124 beeping alarm, they should immediately leave the dangerous area.

[0036] Among them, when the workers go up the well, they can shut down the entire work by controlling the main board 9. At this time, the light source 13 will be powered off and stop working immediately, and the connection circuit between the electromagnetic column 104 and the thermistor column 81 will be powered off for 5 minutes under the action of the delayed power-off relay on the control main board 9. Since the light source 13 stops working, the heat inside the magnetic isolation lampshade 1 gradually decreases, so the temperature at the thermistor column 81 gradually decreases. At this time, the resistance of the thermistor column 81 gradually increases, so the current passed into the electromagnetic column 104 gradually decreases. Therefore, during the period of delayed power off of the electromagnetic column 104, the electromagnetic column 104 will gradually weaken the magnetic attraction to the iron core 103 due to the gradual decrease in the current passed. At this time, under the action of the non-magnetic spring 102, the pressure regulating piston 7 slowly moves downward, thereby avoiding the sudden power off of the electromagnetic column 104, causing the pressure regulating piston 7 to move back too quickly, causing the pressure inside the magnetic isolation lampshade 1 to increase too much instantaneously, and effectively avoiding the impact of instantaneous pressurization on the transparent plate 145 and the sealing gasket 143 during power off.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An energy-saving LED mining lamp, comprising a magnetic-isolating lampshade (1), characterized in that: The magnetic isolation lampshade (1) is provided with a light emitting groove (2) and a mounting groove (3) inside, a reflective film (4) is fixedly mounted on the groove wall of the light emitting groove (2), a plurality of cavities (5) are provided inside the magnetic isolation lampshade (1), a vent hole (6) is provided on the side wall of the reflective film (4) and the lower side of the cavity wall of each cavity (5), a pressure regulating piston (7) is slidably provided at a position above the vent hole (6) on the same side inside each cavity (5), a temperature measuring component (8) is installed on the light emitting groove (2) and the mounting groove (3), a control mainboard (9) is fixedly mounted on the groove bottom of the mounting groove (3), and the interior of each cavity (5) is connected to the pressure regulating piston (7) on the same side. ) are jointly installed with a magnetic attraction adjustment mechanism (10), the temperature measuring component (8) is electrically connected to each magnetic attraction adjustment mechanism (10) through a control mainboard (9), the magnetic isolation lampshade (1) is installed with a plurality of heat dissipation mechanisms (11) connected to the cavity (5), the outer wall of the magnetic isolation lampshade (1) is installed with an exhaust detection mechanism (12) connected to each heat dissipation mechanism (11), the bottom of the light-emitting groove (2) is fixedly installed with a light source (13), the light-emitting end of the magnetic isolation lampshade (1) is installed with a sealing mechanism (14), the interior of the installation groove (3) is installed with a power supply mechanism (15), and the outer wall of the magnetic isolation lampshade (1) is installed with a headband assembly (16); The temperature measuring component (8) comprises two thermistor columns (81), the bottom of the mounting groove (3) and the light emitting groove (2) are provided with two mounting holes (82), and a group of insulating pads (83) are fixedly installed inside the two mounting holes (82), the two thermistor columns (81) are fixedly connected to the group of insulating pads (83) on the same side, and the two thermistor columns (81) are electrically connected to the control main board (9); Each of the magnetic attraction adjustment mechanisms (10) comprises a support ring (101) fixedly arranged inside the cavity (5), and a non-magnetic spring (102) is fixedly arranged between the support ring (101) and the pressure regulating piston (7), an iron core (103) is fixedly mounted on the end surface of the pressure regulating piston (7), and one end of the iron core (103) slides through the support ring (101), an electromagnetic column (104) is fixedly mounted on the upper cavity wall of the cavity (5), and the two thermistor columns (81) are electrically connected to the electromagnetic column (104) via a control mainboard (9).

2. The energy-saving LED mining lamp according to claim 1, characterized in that: Each of the heat dissipation mechanisms (11) comprises an exhaust groove (111) formed at the lower end of the side wall of the magnetic isolation lampshade (1), and a heat exchange tube (112) is fixedly inserted into the groove wall of the exhaust groove (111), an air inlet end of the heat exchange tube (112) is connected to the cavity (5) on the same side, and the air inlet end of the heat exchange tube (112) is higher than the support ring (101) on the same side, an air inlet hole (113) is formed in the cavity wall of the cavity (5) above the support ring (101) on the same side, and a one-way valve (114) is installed inside the air inlet hole (113) and the exhaust groove (111).

3. The energy-saving LED mining lamp according to claim 2, characterized in that: The exhaust detection mechanism (12) comprises an annular cover (121) fixedly mounted on the lower end of the outer wall of the magnetic isolation lampshade (1); each of the exhaust grooves (111) is connected to the annular cover (121); an exhaust hole (122) is provided on one side wall of the annular cover (121); a plurality of different combustible gas detection probes (123) are fixedly plugged into the end surface of the annular cover (121); a detection end of each of the combustible gas detection probes (123) is arranged on the inner side of the annular cover (121); a buzzer (124) is fixedly mounted on the groove wall of the installation groove (3); and each of the combustible gas detection probes (123) is electrically connected to the buzzer (124) via a control mainboard (9).

4. The energy-saving LED mining lamp according to claim 3, characterized in that: The sealing mechanism (14) comprises a fixing ring (141) fixedly mounted on the end of the magnetic isolation lampshade (1); an annular sealing groove (142) is formed at the lower end of the fixing ring (141); a sealing gasket (143) is fixedly mounted at the bottom of the annular sealing groove (142); a sealing strip (144) is mounted at the lower end of the fixing ring (141); an end surface of the sealing strip (144) abuts against the sealing gasket (143); and a transparent plate (145) is mounted at a position above the end surface of the fixing ring (141) and located above the sealing gasket (143).

5. The energy-saving LED mining lamp according to claim 1, characterized in that: The power supply mechanism (15) comprises a battery mounting cover (151) fixedly mounted inside the mounting groove (3), a detachable storage battery (152) being mounted inside the battery mounting cover (151), a detachable sealing cover plate (153) being mounted at the notch of the mounting groove (3), a plurality of circular holes (154) being formed on the side wall of the battery mounting cover (151), and the interior of the battery mounting cover (151) being connected to the interior of the light-emitting groove (2) via the circular holes (154) and the mounting hole (82).

6. The energy-saving LED mining lamp according to claim 5, characterized in that: The bottom of the battery mounting cover (151) is fixedly plugged with an adapter seat (17); an adapter (18) is installed at the end of the storage battery (152), and the adapter (18) is plugged with the adapter seat (17); the storage battery (152) is electrically connected to the control mainboard (9) via the adapter seat (17) and the adapter (18).

Citation Information

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