CN112013290A

CN112013290A - Miner's lamp

Info

Publication number: CN112013290A
Application number: CN202010872527.9A
Authority: CN
Inventors: 丁柏平; 杨锋; 黄阳彪; 宋林静; 庄瑞霞
Original assignee: Shenzhen Zhongfuneng Electric Equipment Co Ltd
Current assignee: Shenzhen Zhongfuneng Electric Equipment Co Ltd
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2020-12-01

Abstract

The invention discloses a miner lamp, and belongs to the technical field of miner lamps. The miner lamp comprises a lamp shell and a methane sensor, wherein a first accommodating cavity is formed in the lamp shell, a second accommodating cavity is arranged in the first accommodating cavity, an opening is formed in the second accommodating cavity, and the methane sensor is arranged in the second accommodating cavity through the opening; the opening is provided with a baffle plate for sealing the opening and isolating the first accommodating cavity from the second accommodating cavity; the lamp shell is provided with a vent hole, and the second accommodating cavity is communicated with the outside through the vent hole. The methane sensor is arranged in the second accommodating cavity of the lamp shell, so that the volume of the miner lamp is reduced, and the whole miner lamp is compact in structure and convenient to carry; still keep apart second holding chamber and first holding chamber through the baffle, be about to keep apart other spare parts in methane sensor and the miner's lamp, guarantee that methane gas can not get into first holding chamber, improved the explosion-proof performance of whole miner's lamp.

Description

Miner's lamp

Technical Field

The invention relates to the technical field of miner lights, in particular to a miner light.

Background

In a coal mine, after gas reaches a certain concentration, people can breathe difficultly or even suffocate due to oxygen deficiency, and meanwhile, the gas is extremely easy to burn and explode in a high-temperature and high-pressure environment, so that serious production safety accidents are caused, and the life safety of underground workers is threatened. Because the main gas becomes methane, the methane sensor is arranged on the miner's lamp to realize the fast and real-time detection of the methane gas concentration, so as to fully ensure the safety of the operation environment.

The existing miner lamp has a complex structure and a large volume; meanwhile, a detection hole is formed in the mine lamp, methane gas enters the mine lamp through the detection hole to complete detection, and the mine lamp easily causes accumulation of methane gas due to the fact that the mine lamp is narrow in inner space and comprises multiple heating components, so that gas explosion is caused, and the mine lamp is poor in explosion-proof performance.

Disclosure of Invention

The invention aims to provide a miner lamp which is small in size, compact in structure and good in explosion-proof performance.

In order to realize the purpose, the following technical scheme is provided:

a miner lamp comprises a lamp shell and a methane sensor, wherein a first accommodating cavity is formed in the lamp shell, a second accommodating cavity is arranged in the first accommodating cavity, an opening is formed in the second accommodating cavity, and the methane sensor is arranged in the second accommodating cavity through the opening;

the opening is provided with a baffle plate for sealing the opening and isolating the first accommodating cavity from the second accommodating cavity; the lamp shell is provided with a vent hole, and the second accommodating cavity is communicated with the outside through the vent hole.

Preferably, a groove is arranged on the outer wall of the lamp housing, and the wall of the groove is provided with the vent hole; the groove is internally and sequentially provided with a waterproof breathable film and a breathable cover from inside to outside, and gas sequentially passes through the breathable cover, the waterproof breathable film and the vent hole to enter the second accommodating cavity.

Preferably, a sealing ring is arranged between the ventilating cover and the waterproof and breathable film.

Preferably, a cushion block is convexly arranged on the cavity wall of the second accommodating cavity, the cushion block is arranged opposite to the baffle, one end of the methane sensor is attached to the baffle, and the other end of the methane sensor is abutted to the cushion block, so that a gas accommodating space is formed around the cushion block; the vent hole is arranged between the baffle plate and the cushion block.

Preferably, the miner's lamp further comprises a key assembly, the key assembly comprising:

the key pressing plate is arranged on the lamp shell and provided with a first through hole;

the key body is pressed between the key pressing plate and the lamp shell and is made of waterproof materials; the lamp shell is provided with a first through hole, the lamp shell is provided with a first accommodating cavity, the key body is provided with a button, one end of the button penetrates through the lamp shell and then extends to the outside, the other end of the button is provided with a pin, and the pin extends into the first accommodating cavity through the first through hole in the key pressing plate.

Preferably, the lamp housing comprises a first housing and a second housing, and the first housing and the second housing are clamped with each other to form the first accommodating cavity; the clamping joint of the first shell and the second shell is sealed by a colloid; the second accommodating cavity and the vent hole are arranged on the first shell.

Preferably, the first accommodating cavity is provided with a display component and a light source reflector, the side wall of the second housing is provided with a display part and a light transmission part, the display part is used for exposing information on the display component, and the light transmission part is used for enabling light in the light source reflector to transmit.

Preferably, the light-transmitting portion and the display portion are located on different side surfaces of the second casing.

Preferably, a circuit board is arranged in the first accommodating cavity, a boss is arranged on the inner wall of the first shell, and the circuit board is arranged between the boss and the light source reflector; and the lead of the methane sensor penetrates through the baffle and then is connected with the circuit board.

Preferably, the first shell is provided with an accommodating groove, and a cap hook is arranged in the accommodating groove; the boss and the accommodating groove are respectively arranged on the inner side and the outer side of the same position of the first shell.

The invention has the beneficial effects that:

the methane sensor is arranged in the second accommodating cavity of the lamp housing, so that the volume of the mine lamp is reduced, and the whole mine lamp is compact in structure and convenient to carry; still keep apart second holding chamber and first holding chamber through the baffle, be about for other spare parts in methane sensor and the miner's lamp keep apart, guarantee that methane gas gets into the second holding intracavity and accomplishes the methane and survey the back, can not get into first holding chamber again, just also avoided methane gas to take place to pile up in the miner's lamp to cause the emergence of explosion phenomenon, improved the explosion-proof performance of whole miner's lamp.

Drawings

Fig. 1 is a schematic view showing the whole structure of a miner's lamp according to an embodiment of the invention;

fig. 2 is a schematic view of the whole structure of a miner's lamp in an embodiment of the invention;

fig. 3 is a schematic structural view of a miner's lamp according to an embodiment of the invention with the second housing removed;

FIG. 4 is a schematic structural diagram of a first housing according to an embodiment of the invention;

FIG. 5 is a partial cross-sectional view of a first embodiment of a miner's lamp in accordance with the invention;

FIG. 6 is a schematic cross-sectional view of a miner's lamp in an embodiment of the invention;

FIG. 7 is a second partial cross-sectional view of a miner's lamp in an embodiment of the invention;

fig. 8 is a schematic structural diagram of a key assembly according to an embodiment of the invention.

Reference numerals:

100-miner's lamp;

10-a lamp housing; 20-a methane sensor; 30-a circuit board; 40-a display component; 50-a light source reflector; 60-power supply components; 70-a charged copper column; 80-a cap hook; 90-a key assembly;

101-a first accommodating cavity; 102-a second accommodating cavity; 1021-a baffle; 1022-a cushion block;

11-a first housing; 12-a second housing; 13-enclosing plates; 21-a lead; 31-a second pin; 61-cylindrical batteries; 91-pressing the key; 92-key body; 93-a button; 94-first pin;

111-a vent; 112-a boss; 113-a groove; 114-a gas permeable cover; 115-waterproof breathable film; 116-a sealing ring; 117-accommodating groove; 118-a second via; 119-a battery well; 121-a display section; 122-a light-transmitting portion; 911-first via;

1141-grid holes.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are used only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements to be referred to must have specific orientations, be constructed in specific orientations, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

As shown in fig. 1 and fig. 2, the embodiment is to provide a miner's lamp, the miner's lamp 100 includes a lamp housing 10, referring to fig. 3-5, a first accommodating cavity 101 is formed inside the lamp housing 10, and most parts of the miner's lamp 100 are placed in the first accommodating cavity 101; further, a second accommodating cavity 102 is arranged in the first accommodating cavity 101, and the methane sensor 20 is arranged in the second accommodating cavity 102; the side wall of the lamp housing 10 is further provided with a vent hole 111, the second accommodating cavity 102 is communicated with the outside through the vent hole 111, so that the gas in the environment can enter the second accommodating cavity 102, and the detection of the methane concentration is completed through the methane sensor 20 in the second accommodating cavity 102. Further, referring to fig. 4, an opening is disposed on the second receiving cavity 102, and the methane sensor 20 is placed in the second receiving cavity 102 through the opening, so as to complete the installation of the methane sensor 20 inside the lamp housing 10. Further, referring to fig. 3 and 5, a baffle 1021 is disposed at an opening of the second receiving cavity 102 for closing the opening and isolating the first receiving cavity 101 and the second receiving cavity 102, so that the methane gas entering the second receiving cavity 102 cannot enter the first receiving cavity 101, i.e. the methane sensor 20 is isolated from other components inside the lamp housing 10, thereby preventing the methane gas from accumulating in the lamp housing 10 and causing explosion.

The miner lamp 100 provided by the embodiment compresses the volume of the miner lamp 100 by placing the methane sensor 20 in the second accommodating cavity 102 of the lamp housing 10, so that the whole miner lamp 100 has a compact structure and is convenient to carry; the methane sensor 20 can be protected, and when the miner lamp 100 is collided or collided, the second accommodating cavity 102 is protected by the lamp shell 10 and cannot be easily damaged; the embodiment also seals the opening through the baffle 1021, isolates the second accommodating cavity 102 and the first accommodating cavity 101, namely isolates the methane sensor 20 from other parts in the miner lamp 100, and ensures that methane gas can not enter the first accommodating cavity 101 after entering the second accommodating cavity 102 to complete methane detection, thereby avoiding accumulation of methane gas in the miner lamp 100, causing explosion phenomenon and improving the explosion-proof performance of the whole miner lamp 100.

Referring to fig. 1 and 2, the lamp housing 10 includes a first housing 11 and a second housing 12, and the first housing 11 and the second housing 12 are fastened to each other to form a first accommodating cavity 101. The first housing 11 is a lower housing, the second housing 12 is an upper housing, and the upper housing and the lower housing are a set of opposite concepts proposed when the miner lamp 100 is worn, and in this embodiment, it is considered that the lower housing (the first housing 11) is disposed on a side close to a human body and the upper housing (the second housing 12) is disposed on a side far from the human body when the miner lamp is worn. Referring to fig. 3 and 6, in the present embodiment, it is preferable that the circuit board 30, the power supply module 60, the methane sensor 20, and other functional components of the miner's lamp 100 are mainly disposed in the lower casing, and the display portion 121 and the emitter 50 of the light source are mainly disposed in the upper casing, so as to facilitate observation by a person and illumination by the light source. Furthermore, the upper shell and the lower shell are connected in a clamping mode so as to be convenient to assemble. Optionally, the clamping joint of the upper housing and the lower housing (i.e., the position a in fig. 5 and the position B in fig. 6) is sealed by gluing, so as to further ensure that the liquid and methane gas in the external environment cannot escape from the gap at the clamping joint into the lamp housing 10, thereby improving the explosion-proof performance of the mine lamp 100 and the sealing performance of the mine lamp 100.

Referring to fig. 3, the miner's lamp 100 further includes a circuit board 30, and the methane sensor 20 is connected to the circuit board 30 to transmit signals. Further, the circuit board 30 is provided on the first housing 11 by a fastener; optionally, the fastener is a bolt or a screw. In this embodiment, the circuit board 30 is an integrated circuit board, and includes a control module, and a core element of the control module is a single chip microcomputer, and the single chip microcomputer receives the detection signal of the methane sensor 20, processes data, and transmits the result of the data processing to the display component 40 of the mine lamp 100 for output, so that a person can conveniently check the methane detection result. Further, the circuit board 30 further includes an alarm module, and when the methane detection result exceeds the preset safe concentration, the alarm module can send out an alarm warning to remind people that the current working environment is unsafe. Specifically, the alarm module can warn in a buzzing, flashing or vibrating manner.

Specifically, referring to fig. 2 and 3, the display assembly 40 is a display, a main body of the display is disposed in the second housing 12 and electrically connected to the circuit board 30, a display screen of the display is exposed through the display portion 121 of the second housing 12, and information such as time, electric quantity, and methane concentration detected by the methane sensor 20 can be displayed on the display screen. Alternatively, the display part 121 is a through groove provided on the side wall of the second housing 12; the through grooves may be covered with a light-transmitting material so that external impurities do not enter the interior of the lamp housing 10. Further, still referring to fig. 2 and 3, a light source reflector 50 is disposed in the second housing 12 for collecting light from the LED light source disposed on the circuit board 30 and transmitting the collected light to the outside of the lamp housing 10. Further, a light-transmitting portion 122 is further disposed on the side wall of the second housing 12, and the light collected by the light source reflector 50 is emitted through the light-transmitting portion 122, so as to realize the illumination function of the miner lamp 100 itself. Optionally, in this embodiment, the light source reflector 50 is in a horn shape, and the small-sized end of the light source reflector 50 abuts against the circuit board 30, and the large-sized end is fully attached to the light-transmitting portion 122, so as to ensure that the light is fully emitted from the light-transmitting portion 122. Optionally, the LED light source includes a primary light source and a secondary light source, the light source reflector 50 is configured to collect the primary light source of the LED light source, and a central axis of the primary light source coincides with a central axis of the light source reflector, so as to ensure that light rays of the primary light source can be collected as much as possible, improve the light collection efficiency of the light source reflector 50, and achieve an optimal illumination effect.

Optionally, the light-transmitting portion 122 and the display portion 121 are disposed on different sides of the second housing 12, so as to facilitate reasonable arrangement of the light source reflector 50 and the display, and to reduce the volume of the mining lamp 100, and to enable information display without interference with light irradiation. In this embodiment, the light-transmitting portion 122 and the display portion 121 are provided on two mutually perpendicular side surfaces of the second casing 12; the side surface provided with the light-transmitting portion 122 is connected to one end of the first housing 11, and the side surface provided with the display portion 121 is connected to the other end of the first housing 11, so that the cross section of the lamp housing 10 is substantially triangular (refer to fig. 6), and the structural design of the lamp housing 10 is optimized. Further, referring to fig. 4 and 6, a boss 112 is provided on an inner wall of the first housing 11, and the circuit board 30 is mounted on the boss 112; the arrangement of the boss 112 shortens the distance between the light source reflector 50 and the circuit board 30, and facilitates the abutment of the light source reflector 50 and the circuit board 30. Alternatively, referring to fig. 4, the bosses 112 may be several reinforcing members protruded on the inner wall of the first housing 11; in this embodiment, the reinforcing member is a reinforcing plate, and the circuit board 30 is supported by the reinforcing plate and fastened by the bolt in cooperation with a threaded hole provided in the reinforcing plate.

Further, referring to fig. 4, the second accommodating chamber 102 is disposed at one end of the first housing 11 along the length direction. Specifically, the second accommodating chamber 102 is defined by the enclosing plate 13 and a side wall of the first housing 11 at the end surface. The shroud 13 may be integrally formed with the first housing 11 or may be a separate member; preferably, the second housing 11 is integrally formed, so that the gas entering the second housing 102 is prevented from escaping into the first housing 101 from the connection between the enclosure 13 and the first housing 11. Optionally, the shape structure of the second accommodating cavity 102 follows the shape structure of the methane sensor 20, so as to ensure that the methane sensor 20 is stably placed in the second accommodating cavity 102. Further, the shape of the baffle 1021 is following the shape of the opening of the second accommodating cavity 102, and the baffle 1021 is hermetically connected with the cavity wall of the second accommodating cavity 102 in a gluing manner, so as to sufficiently realize the isolation of the second accommodating cavity 102 from the first accommodating cavity 101. Further, referring to fig. 3 and 5, a through hole is provided on the baffle 1021, and the lead wire 21 of the methane sensor 20 can enter the first receiving cavity 101 through the through hole to be connected with the circuit board 30.

Referring to fig. 4, a groove 113 is formed on an outer wall of the first housing 11, and the vent hole 111 is formed on a wall of the groove 113; the recess 113 is provided with a ventilation component, and the outside air firstly passes through the ventilation component and then enters the second accommodating cavity 102 through the ventilation hole 111. Specifically, referring to fig. 5, the ventilation assembly includes a waterproof ventilation film 115 and a ventilation cover 114 sequentially arranged from inside to outside in the groove 113, referring to fig. 1, wherein the ventilation cover 114 is provided with a grid hole 1141, so that the ventilation cover 114 can not only play a role in pressing the waterproof ventilation film 115, but also facilitate the smooth entry of gas through the grid hole 1141; the waterproof breathable film 115 is adopted, that is, only gas is allowed to pass through, but liquid cannot pass through, so that a good waterproof effect is achieved, and liquid such as water vapor is prevented from entering the second accommodating cavity 102 to interfere with detection of the methane sensor 20. Optionally, a sealing ring 116 is arranged between the air permeable cover 114 and the waterproof air permeable membrane 115, so that the sealing effect is further improved. Further, the grid holes 1141 of the ventilation cover 114 and the ventilation holes 111 of the groove 113 are mutually communicated along the length direction of the first housing 11, so that the air can directly and rapidly enter the second accommodating cavity 102.

Continuing to refer to fig. 5, a cushion block 1022 is convexly disposed on the cavity wall of the second accommodating cavity 102, the cushion block 1022 is disposed opposite to the baffle 1021, when assembled, one end of the methane sensor 20 is attached to the baffle 1021, and the other end of the methane sensor abuts against the cushion block 1022, so that a gas accommodating space (at C in fig. 5) is formed around the cushion block 1022; one end abutting against the cushion block 1022 is a sensing end of the methane sensor 20; the vent 111 is disposed between the pad 1022 and the baffle 1021, and the gas entering through the vent 111 can diffuse toward the gas accommodating space of the pad 1022 first, and smoothly contact the sensing end of the methane sensor 20, thereby rapidly completing the detection. Optionally, the cushion blocks 1022 are arranged at intervals, and may be integrally arranged with the second accommodating cavity 102 or detachably arranged separately, and in this embodiment, the cushion blocks are preferably integrally arranged, and each size is small, so that the gas accommodating space is enlarged as much as possible while the methane sensor 20 is stably supported.

Referring to fig. 3 and 6, the miner's lamp 100 further includes a power supply assembly 60 disposed within the housing 10, the power supply assembly 60 being connected to the circuit board 30 for supplying power to the miner's lamp 100. Specifically, the power supply module 60 includes two cylindrical batteries 61, and the two cylindrical batteries 61 extend in the length direction of the first housing 11 and are respectively provided on both sides of the first housing 11 in the width direction. Specifically, referring to fig. 4 and 6, the first housing 11 is provided with arc-shaped battery slots 119 along both sides of the width direction, and the columnar battery 61 is clamped in the battery slots 119, so that stable placement of the battery can be realized, and the battery is convenient to detach. In this embodiment, the extending direction of the cylindrical battery 61 is consistent with the length direction of the first housing 11, and the length is equivalent, so as to be beneficial to fully utilizing the internal space of the lamp housing 10, and the structure of the miner's lamp 100 is smaller and more compact. Further alternatively, the circuit board 30 is provided between the two cylindrical batteries 61; for the boss 112 for mounting the circuit board 30, it is preferable that the boss 112 is provided at a middle position of the first housing 11, and both ends of the boss 112 in the width direction of the first housing 11 are arc structures which are a part of the battery tray 119, so that the integrity of the first housing 11 is stronger. Alternatively, referring to fig. 3, the second receiving cavity 102 is provided between the two cylindrical batteries 61, which can reduce the dimension of the lamp housing 10 in the width direction. In this embodiment, the optional power supply component 60 is a rechargeable battery; referring to fig. 1 and 3, a charging copper post 70 is provided on a side wall of the first housing 11, and the charging copper post 70 connects the circuit board 30 and the outside to charge the rechargeable battery.

In order to improve the portability of the miner's lamp 100, referring to fig. 1 and 6, a cap hook 80 is further provided on the first housing 11 of the miner's lamp 100; in a natural state, the hat hook 80 is in a clamping state, when the hat is required to be carried, the hat hook 80 can be hung at a hat, a waistband, clothes and the like, and the clamping is completed through the elasticity of the hat hook 80. Further, the cap hook 80 is provided on a side of the first housing 11 away from the second housing 12. Optionally, a receiving groove 117 is formed in the first housing 11, and the cap hook 80 is disposed in the receiving groove 117 through a bolt structure, so that the whole miner lamp 100 looks smaller, and the bolt structure is hidden in the receiving groove 117, so that the whole miner lamp 100 looks more beautiful. Further optionally, the cap hook 80 is rotatably disposed on the bolt structure through an elastic damping member, so that relative rotation between the cap hook 80 and the lamp housing 10 can be realized, and the rotation axis is parallel to the lamp housing 10, when the miner lamp 100 is hung on an object, the illumination angle of the miner lamp 100 can be changed through rotation of the lamp housing 10 relative to the cap hook 80, and the applicability of the miner lamp 100 is improved. Further, referring to fig. 6, the boss 112 and the receiving groove 117 are respectively disposed on the inner side and the outer side of the same position of the first housing 11, and when the boss 112 and the first housing 11 are of an integrated structure, the receiving groove 117 is equivalent to being disposed on one side of the boss 112 far away from the first receiving cavity 101, so that the design height of the boss 112 can be reduced, and the volume of the lamp housing 10 can be reduced.

Referring to fig. 3, the miner's lamp 100 also includes a key assembly 90 for controlling the opening and closing of the miner's lamp 100 or the detection of methane by manual pressing. Because the circuit board 30 is disposed in the first casing 11, the key assembly 90 is also disposed on the first casing 11, and preferably, the key assembly 90 is disposed opposite to the methane sensor 20, that is, disposed at the other end of the first casing 11 along the length direction, so that the detection of the methane sensor 20 on the gas is not affected, and the operation by a person is facilitated. Referring to fig. 7 and 8, the key assembly 90 includes a key pressing plate 91 disposed on an inner wall of the first casing 11, and a key body 92 clamped between the key pressing plate 91 and the first casing 11, the key body 92 is provided with a button 93, one end of the button 93 passes through a second through hole 118 on the first casing 11 (refer to fig. 4), the other end of the button 93 is provided with a first pin 94, and the first pin 94 can pass through a first through hole 911 on the key pressing plate 91 and enter the first casing 11; by pressing the button 93 outside the first housing 11, the first pin 94 of the button 93 can be driven into contact with the second pin 31 on the circuit board 30 to complete the triggering. Alternatively, the key pressing plate 91 is disposed on the first casing 11 through a bolt structure, so that the key body 92 can be stably pressed between the first casing 11 and the key pressing plate 91. Further, the key body 92 is made of a waterproof material, specifically, a silica gel material; silica gel has good waterproof effect, and when key body 92 was established to the button clamp plate 91 pressure, button body 92 was located between the lateral wall of button clamp plate 91 and first casing 11, played certain sealed effect, can prevent methane gas and liquid infiltration, has further improved the waterproof explosion-proof performance of whole miner's lamp 100.

In this embodiment, two buttons 93 are provided on the key body 92, which are a power switch button and a function button, respectively, wherein the power switch button can control the whole miner lamp 100 to be turned on and off; the function button can be used as a methane detection calibration button or a clock button of the miner lamp 100, and different functions can be controlled through different pressing time lengths or pressing frequencies in specific implementation. Of course, in some other embodiments, multiple buttons 93 may be provided, and the specific control logic of the buttons 93 may be changed accordingly according to the layout of the circuit board 30.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. The miner lamp is characterized by comprising a lamp shell (10) and a methane sensor (20), wherein a first accommodating cavity (101) is formed inside the lamp shell (10), a second accommodating cavity (102) is arranged in the first accommodating cavity (101), an opening is formed in the second accommodating cavity (102), and the methane sensor (20) is arranged in the second accommodating cavity (102) through the opening;

a baffle plate (1021) is arranged at the opening and used for closing the opening and isolating the first accommodating cavity (101) from the second accommodating cavity (102); the lamp shell (10) is provided with a vent hole (111), and the second accommodating cavity (102) is communicated with the outside through the vent hole (111).

2. The miner's lamp of claim 1, wherein a groove (113) is formed in an outer wall of the lamp housing (10), and the vent hole (111) is formed in a wall of the groove (113); the groove (113) is internally and sequentially provided with a waterproof breathable film (115) and a breathable cover (114) from inside to outside, and gas sequentially enters the second accommodating cavity (102) through the breathable cover (114), the waterproof breathable film (115) and the vent hole (111).

3. The mining lamp according to claim 2, characterized in that a sealing ring (116) is arranged between the gas permeable cover (114) and the waterproof gas permeable membrane (115).

4. The miner's lamp as in claim 1, wherein a cushion block (1022) is convexly provided on a wall of the second receiving cavity (102), the cushion block (1022) is disposed opposite to the barrier (1021), one end of the methane sensor (20) is abutted against the barrier (1021), and the other end of the methane sensor abuts against the cushion block (1022) to form a gas receiving space around the cushion block (1022); the vent hole (111) is arranged between the baffle plate (1021) and the cushion block (1022).

5. The mining lamp of claim 1, further comprising a key assembly (90), the key assembly (90) comprising:

the key pressing plate (91) is arranged on the lamp shell (10), and a first through hole (911) is formed in the key pressing plate (91);

the key body (92) is pressed between the key pressing plate (91) and the lamp shell (10) and is made of waterproof materials;

set up button (93) on button body (92), the one end of button (93) runs through extend to the outside behind lamp body (10), the other end of button (93) sets up the pin, the pin by on key clamp plate (91) first through-hole (911) stretch into first holding chamber (101).

6. The miner's lamp of claim 1 wherein said lamp housing (10) includes a first housing (11) and a second housing (12), said first housing (11) and said second housing (12) snap-fit to each other to form said first receiving cavity (101); the clamping joint of the first shell (11) and the second shell (12) is sealed by glue; the second accommodating cavity (102) and the vent hole (111) are arranged on the first shell (11).

7. The miner's lamp as in claim 6, wherein a display assembly (40) and a light source reflector (50) are disposed in the first receiving cavity (101), a display portion (121) and a light-transmitting portion (122) are disposed on a side wall of the second housing (12), the display portion (121) is used for displaying information on the display assembly (40), and the light-transmitting portion (122) is used for transmitting light in the light source reflector (50).

8. The mining lamp according to claim 7, wherein the light-transmissive portion (122) and the display portion (121) are respectively located on different sides of the second housing (12).

9. The miner's lamp of claim 7, wherein a circuit board (30) is disposed in the first receiving cavity (101), a boss (112) is disposed on an inner wall of the first housing (11), and the circuit board (30) is disposed between the boss (112) and the light source reflector (50); the lead (21) of the methane sensor (20) penetrates through the baffle (1021) and then is connected with the circuit board (30).

10. The miner's lamp of claim 9 wherein the first housing (11) defines a receiving slot (117), the receiving slot (117) having a cap hook (80) disposed therein; the boss (112) and the accommodating groove (117) are respectively arranged on the inner side and the outer side of the same position of the first shell (11).