CN214201380U - Portable gas detector - Google Patents

Abstract

The utility model discloses a portable gas detector, which comprises a casing, a protection mechanism and a wearing mechanism; a shell: the middle part of the upper surface of the shell is provided with an air inlet, the lower end of the upper surface of the shell is provided with a horn hole, a circuit board is arranged in the shell, keycaps are arranged in mounting holes on the upper surface of the shell, and the positions of the keycaps correspond to the positions of the circuit board key switches; the protection mechanism comprises: the upper end of the outer surface of the shell is provided with a groove; wearing the mechanism: the middle part of the back side of the shell is arranged; wherein: still include battery, loudspeaker, sensor, microprocessor, display screen and vibrating motor, the battery sets up in the trailing flank lower extreme of circuit board, and the leading flank upper end of circuit board is equipped with vibrating motor, and the leading flank middle part of circuit board is equipped with microprocessor, and this portable gas detection appearance can prevent to miss and press the key cap, can also make things convenient for on fixing the arm with portable gas detection appearance, convenient work.

Description

Portable gas detector

Technical Field

The utility model relates to a gaseous detection technology field specifically is a portable gas detector.

Background

With the progress of society, people can predict and prevent or directly avoid certain disasters in advance, and can not leave various instruments in advance for the disasters, wherein the portable gas detector is one of the instruments, and can be used for detecting harmful gases, organic voc gases, combustible gases and single gases. The development of the technology for accurately making early warning hidden danger detection is different day by day, the application in the aspects of accident precursor detection and elimination is more and more extensive, and the development direction is miniaturization and automation so as to realize long-term monitoring. The development of portable gas detectors has allowed the leakage process to be discovered at an early stage. At present, a common portable gas detector can only be held by hands when in use, if the portable gas detector is required to detect air all the time in specific work, the work of people is affected by holding the portable gas detector by hands, if the portable gas detector is placed aside for detection, people cannot obtain alarm information timely, and the harmful gas which is excessive in work can damage the bodies of people.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a portable gas detector, can conveniently be fixed to the arm, liberation both hands do not influence normal work, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a portable gas detector comprises a shell, a protection mechanism and a wearing mechanism;

a shell: the middle part of the upper surface of the shell is provided with an air inlet, the lower end of the upper surface of the shell is provided with a horn hole, a circuit board is arranged in the shell, keycaps are arranged in mounting holes on the upper surface of the shell, and the positions of the keycaps correspond to the positions of the circuit board key switches;

the protection mechanism comprises: the upper end of the outer surface of the shell is provided with a groove;

wearing the mechanism: the middle part of the back side of the shell is arranged;

wherein: the multifunctional key cap protection device also comprises a battery, a loudspeaker, a sensor, a microprocessor, a display screen and a vibrating motor, wherein the battery is arranged at the lower end of the rear side face of the circuit board, the vibrating motor is arranged at the upper end of the front side face of the circuit board, the microprocessor is arranged in the middle of the front side face of the circuit board, the loudspeaker, the sensor and the display screen are also arranged in the middle of the front side face of the circuit board, the loudspeaker corresponds to the loudspeaker hole, the air inlet hole corresponds to the sensor, the display screen corresponds to the display screen hole formed in the shell, the output ends of the battery, the sensor and the key switch of the circuit board are electrically connected with the input end of the microprocessor, the output end of the microprocessor is electrically connected with the loudspeaker, the display screen and the input end of the vibrating motor, the display screen and the key cap are protected, the screen scratch and the damage caused by accidents in the use process are effectively prevented, the use is influenced, and the bad consequences caused by the misoperation of accidentally pressing the key cap are avoided, moreover, the portable gas detector can be conveniently fixed on the arm, so that the long-time detection in work can be realized without influencing the work of people, the gas content around the body can be detected at any time, and the safety of people is ensured.

Further, protection machanism includes protecting crust, ejector pad, spout, bumping post and locating component, the left and right sides face upper end of casing is seted up to the spout symmetry, the rear side slider of protecting crust respectively with spout sliding connection, the left and right sides face symmetry of protecting crust is equipped with the ejector pad, the left and right sides face symmetry of casing is equipped with evenly distributed's bumping post, the inside opposite face symmetry of protecting crust is equipped with locating component, locating component sets up with the bumping post cooperation, can protect the display screen not receive the fish tail, can also prevent to press the key cap by mistake in the use.

Furthermore, locating component includes shell fragment and reference column, the reference column symmetry sets up in the inner wall lower extreme about the protecting crust, and the equal symmetry in back both sides face of reference column is equipped with the shell fragment, and the vertical correspondence in position of reference column and bumping post can restrict the free movement of protecting crust, makes things convenient for work.

Furthermore, the protective housing is a transparent shell, and the protective housing corresponds to the keycap and the display screen respectively, so that people can conveniently observe the display screen at any time.

Further, wear the mechanism and paste round hair face including card post, fixed plate, connecting band, connecting hole and magic, the card post all with the trailing flank middle part round hole joint of casing, the trailing flank of card post all with the leading flank fixed connection of fixed plate, the trailing flank left side of fixed plate is equipped with the connecting band, the leading flank of connecting band is equipped with magic and pastes thorn hair face, the connecting hole has been seted up to the leading flank left end of connecting band, the trailing flank right side of fixed plate is equipped with magic and pastes round hair face, connecting band and magic are pasted round hair face cooperation and are set up, can fix portable gas detection appearance to our arm on, liberate both hands and make things convenient for our work.

Compared with the prior art, the beneficial effects of the utility model are that: this portable gas detector has following benefit:

1. the push block is pushed upwards to enable the protective shell to slide upwards along the sliding groove, the protective shell slides upwards to drive the positioning assembly to slide upwards, in the process that the positioning assembly moves upwards, the elastic sheet firstly contacts the stop post, because the minimum opening distance of the two elastic sheets is smaller than the diameter of the stop post, the positioning assembly continues to move upwards to enable the elastic sheet to generate elastic deformation, the positioning assembly continues to move upwards to enable the upper surface of the positioning post to contact with the upper stop post, the initial distance between the contact points of the two elastic sheets and the stop post is equal to the diameter of the stop post, the two elastic sheets reset, the positioning assembly is clamped with the stop post, the protective shell cannot move upwards continuously, the positioning assembly cannot freely slide downwards under the action of the elastic sheets, the key cap is exposed from the lower part of the protective shell, the key cap can be pressed to control a circuit board key switch to enable the portable gas detector to start, after the operation is finished, the push block is pushed downwards to be clamped with the stop post below the positioning assembly, protection mechanism resets, protects display screen and key cap, and screen fish tail and damage that the accident caused in the effectual use that prevents, and then influence the use, and the bad consequence of having avoided the key cap maloperation to cause does not open during the use just can the direct observation display to it is convenient to open, can restrict gliding protecting crust, does not influence our the key cap of pressing.

2. The portable gas detector is placed on the arm of a user, the fixing plate is attached to the arm, one end of the hook and loop hair surface penetrates through the connecting hole of the connecting belt, the hook and loop hair surface is reversely tensioned after penetrating through the connecting hole, fine and soft fibers on the rear side of the hook and loop hair surface are adhered to the hard barbed hair on the front side of the connecting belt, the portable gas detector is fixed to the arm, the portable gas detector is convenient to work, when the user does not need to wear the mechanism, the fixing plate can be lifted up from the rear plate, the fixing plate drives the clamping column to move backwards, because the diameter of the end of the clamping column is larger than that of the round hole in the middle of the rear side of the shell, the end of the clamping column is provided with a groove, the clamping column moves backwards after receiving external force, the clamping column can shrink, the wearing mechanism can be conveniently taken down without falling off due to the external force, and can be aligned with the round hole in the middle of the rear side of the shell when the user needs, the portable gas detector can be conveniently fixed on the arm, the long-time detection in work can be met, the work of people is not influenced, the gas content around the body can be detected at any time, the safety of people is ensured, and the wearing mechanism can be freely installed according to the requirements of people.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic sectional view of the housing of the present invention;

FIG. 3 is an enlarged schematic view of the structure at the position A of the present invention;

fig. 4 is a schematic diagram of the rear side structure of the present invention;

fig. 5 is an enlarged schematic view of the position B of the present invention.

In the figure: the device comprises a machine shell 1, a protection mechanism 2, a protection shell 21, a push block 22, a sliding chute 23, a catch column 24, a positioning component 25, a spring piece 251, a positioning column 252, a keycap 3, an air inlet 4, a horn hole 5, a wearing mechanism 6, a clamping column 61, a fixing plate 62, a connecting band 63, a connecting hole 64, a hook-and-loop fastener 65 round hair surface, a circuit board 7, a battery 8, a horn 9, a sensor 10, a microprocessor 11, a display screen 12 and a vibrating motor 13.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a portable gas detector comprises a shell 1, a protection mechanism 2 and a wearing mechanism 6;

a machine shell 1: an air inlet hole 4 is formed in the middle of the upper surface of the shell, the air inlet hole 4 facilitates air to enter, a horn hole 5 is formed in the lower end of the upper surface of the shell 1, the horn hole 5 facilitates sound transmission, a circuit board 7 is arranged inside the shell 1, the circuit board 7 facilitates connection of electronic elements, keycaps 3 are mounted in mounting holes in the upper surface of the shell 1, the keycaps 3 are convenient to operate, and the positions of the keycaps 3 correspond to the positions of the key switches of the circuit board 7;

the protection mechanism 2: the protective mechanism 2 comprises a protective shell 21, a push block 22, a sliding chute 23, a retaining column 24 and a positioning component 25, wherein the sliding chute 23 is symmetrically arranged at the upper end of the left side surface and the right side surface of the casing 1, a rear side sliding block of the protective shell 21 is respectively connected with the sliding chute 23 in a sliding manner, the push block 22 is symmetrically arranged at the left side surface and the right side surface of the protective shell 21, the retaining columns 24 are symmetrically arranged at the left side surface and the right side surface of the casing 1, the positioning component 25 is symmetrically arranged at the opposite surface in the protective shell 21, the positioning component 25 is matched with the retaining column 24, the positioning component 25 comprises an elastic sheet 251 and a positioning column 252, the positioning column 252 is symmetrically arranged at the lower ends of the left inner wall and the right inner wall of the protective shell 21, the elastic sheets 251 are symmetrically arranged at the front side surface and the rear side surface of the positioning column 252, the positioning column 252 vertically corresponds to the position of the retaining column 24, the protective shell 21 is a transparent shell, the protective shell 21 respectively corresponds to the positions of the keycap 3 and the display screen 12, when the portable gas detector is taken up, the push block 22 is pushed upwards to enable the protective shell 21 to slide upwards along the sliding groove 23, the protective shell 21 slides upwards to drive the positioning component 25 to slide upwards, in the process that the positioning component 25 moves upwards, the elastic sheet 251 contacts the stop post 24 firstly, because the minimum opening distance of the two elastic sheets is smaller than the diameter of the stop post 24, the positioning component 25 continues to move upwards, the elastic sheet 251 generates elastic deformation, the positioning component 25 continues to move upwards to enable the upper surface of the positioning column 252 to contact with the upper stop post 24, the initial distance between the contact points of the two elastic sheets 251 and the stop post 24 is equal to the diameter of the stop post 24, the two elastic sheets 251 reset, the positioning component 25 is clamped with the stop post 24, further, the protective shell 21 cannot move upwards continuously, the keycap 3 cannot slide freely downwards under the action of the elastic sheet 251, at the moment, the keycap 3 is exposed from the lower part of the protective shell 21, and people can press the keycap 3 to control the key switch of the circuit board 7 to enable the portable gas detector to start up, after the operation is finished, the push block 22 is pushed downwards, the positioning assembly 25 is clamped with the stop pillar 24 below, and the protection mechanism 2 is reset;

the wearing mechanism 6: the wearing mechanism 6 comprises a clamping column 61, a fixing plate 62, a connecting belt 63, a connecting hole 64 and a magic tape round hair surface 65, the clamping column 61 is clamped with a round hole in the middle of the rear side of the machine shell 1, the rear side of the clamping column 61 is fixedly connected with the front side of the fixing plate 62, the left side of the rear side of the fixing plate 62 is provided with the connecting belt 63, the front side of the connecting belt 63 is provided with the magic tape round hair surface, the left end of the front side of the connecting belt 63 is provided with the connecting hole 64, the right side of the rear side of the fixing plate 62 is provided with the magic tape round hair surface 65, the connecting belt 63 and the magic tape round hair surface 65 are arranged in a matching way, the portable gas detector is placed on an arm, the fixing plate 62 is attached to the arm, then one end of the magic tape round hair surface 65 penetrates through the connecting hole 64 of the connecting belt 63, the magic tape round hair surface 65 penetrates through the rear side to tension the magic tape round hair surface 65 reversely, and the magic tape round hair surface 65 is adhered to the magic tape round hair surface of the front side of the connecting belt 63, when the wearing mechanism 6 is not needed, the fixing plate 62 can be lifted to the rear plate, the fixing plate 62 drives the clamping column 61 to move backwards, the clamping column 61 moves backwards when external force is applied to the clamping column 61, the end of the clamping column 61 can contract when the clamping column 61 moves backwards, the wearing mechanism 6 can be conveniently taken down, the clamping column 61 cannot fall off due to the external force, and the clamping column 61 and the circular hole in the middle of the rear side face of the shell 1 can be installed in an aligned mode when the wearing mechanism 6 is needed;

wherein: the portable gas detector also comprises a battery 8, a loudspeaker 9, a sensor 10, a microprocessor 11, a display screen 12 and a vibrating motor 13, wherein the battery 8 is arranged at the lower end of the rear side face of the circuit board 7, the vibrating motor 13 is arranged at the upper end of the front side face of the circuit board 7, the microprocessor 11 is arranged in the middle of the front side face of the circuit board 7, the loudspeaker 9, the sensor 10 and the display screen 12 are also arranged in the middle of the front side face of the circuit board 7, the loudspeaker 9 corresponds to the loudspeaker hole 5, the air inlet 4 corresponds to the sensor 10, the display screen 12 corresponds to the display screen hole formed in the shell 1, the output ends of the battery 8, the sensor 10 and a key switch of the circuit board 7 are electrically connected with the input end of the microprocessor 11, the output end of the microprocessor 11 is electrically connected with the input ends of the loudspeaker 9, the display screen 12 and the vibrating motor 13, the battery 8 provides energy for the work of the portable gas detector, and air passes through the air inlet 4 to enter the sensor 10, the gas that needs to detect can arouse the change of sensor 10 conductivity, and sensor 10 changes data transmission and gives microprocessor 11, and microprocessor 11 transmits data processing analysis back for display screen 12, and display screen 12 will detect data display, and when the content exceeds standard, microprocessor 11 will send alarm signal, and loudspeaker 9 alarm sound is sounded, and vibrating motor 13 operation is sent the vibration, arouses our attention.

When in use: when the portable gas detector is taken up, the push block 22 is pushed upwards to enable the protective shell 21 to slide upwards along the sliding groove 23, the protective shell 21 slides upwards to drive the positioning component 25 to slide upwards, in the process that the positioning component 25 moves upwards, the elastic sheet 251 contacts the stop post 24 firstly, because the minimum opening distance of the two elastic sheets is smaller than the diameter of the stop post 24, the positioning component 25 continues to move upwards, the elastic sheet 251 generates elastic deformation, the positioning component 25 continues to move upwards to enable the upper surface of the positioning column 252 to contact with the upper stop post 24, the initial distance between the contact points of the two elastic sheets 251 and the stop post 24 is equal to the diameter of the stop post 24, the two elastic sheets 251 reset, the positioning component 25 is clamped with the stop post 24, further, the protective shell 21 cannot move upwards continuously, the keycap 3 cannot slide freely downwards under the action of the elastic sheet 251, at the moment, the keycap 3 is exposed from the lower part of the protective shell 21, and people can press the keycap 3 to control the key switch of the circuit board 7 to enable the portable gas detector to start up, the push block 22 is pushed downwards, the positioning component 25 is clamped with the stop post 24 below, the protection mechanism 2 is reset, the portable gas detector is placed on the arm of a user, the fixing plate 62 is attached to the arm, one end of the hook and loop hair surface 65 penetrates through the connecting hole 64 of the connecting band 63, the hook and loop hair surface 65 penetrates through the rear reverse tensioning hook and loop hair surface 65, the hook and loop hair surface 65 is bonded with the hook and loop hair surface on the front side of the connecting band 63, the portable gas detector is fixed on the arm, the work of the user is facilitated, when the user does not need to wear the mechanism 6, the fixing plate 62 can be lifted up from the rear plate, the fixing plate 62 drives the clamp post 61 to move backwards, because the diameter of the end of the clamp post 61 is larger than that of a circular hole in the middle of the rear side of the machine shell 1, the groove is formed in the end of the clamp post 61, the end of the clamp post 61 can be retracted by the backward movement of the clamp post 61, the mechanism 6 can be conveniently taken down, not receive external force and can not drop, can align the installation with card post 61 and 1 rear flank middle part round hole of casing when we need with the same reason, make things convenient for our demand, the air passes the inside that inlet port 4 got into sensor 10, the gas that needs to detect can arouse the change of sensor 10 electric conductivity, sensor 10 changes data transmission and gives microprocessor 11, microprocessor 11 transmits data processing analysis back for display screen 12, display screen 12 will detect data display, when content exceeds standard, microprocessor 11 will send alarm signal, loudspeaker 9 alarm sound is sounded, vibrating motor 13 moves and sends the vibration, arouse our attention.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. A portable gas detector, its characterized in that: comprises a shell (1), a protection mechanism (2) and a wearing mechanism (6);

case (1): an air inlet (4) is formed in the middle of the upper surface of the shell, a horn hole (5) is formed in the lower end of the upper surface of the shell (1), a circuit board (7) is arranged inside the shell (1), keycaps (3) are mounted in mounting holes in the upper surface of the shell (1), and the positions of the keycaps (3) correspond to the positions of the key switches of the circuit board (7);

protection mechanism (2): is arranged at the upper end of the outer surface of the shell (1);

wearing mechanism (6): is arranged in the middle of the back side surface of the shell (1);

wherein: still include battery (8), loudspeaker (9), sensor (10), microprocessor (11), display screen (12) and vibrating motor (13), battery (8) set up in the trailing flank lower extreme of circuit board (7), the leading flank upper end of circuit board (7) is equipped with vibrating motor (13), the leading flank middle part of circuit board (7) is equipped with microprocessor (11), the leading flank middle part of circuit board (7) still is equipped with loudspeaker (9), sensor (10) and display screen (12), loudspeaker (9) and loudspeaker hole (5) position correspond, inlet port (4) and sensor (10) position correspond, display screen (12) correspond with the display screen hole that casing (1) was seted up, battery (8), the input of microprocessor (11) is all connected electrically to sensor (10) and circuit board (7) key switch's output, microprocessor (11) output electricity is connected loudspeaker (9), A display screen (12) and an input end of a vibration motor (13).

2. The portable gas detector of claim 1, wherein: protection machanism (2) are including protecting crust (21), ejector pad (22), spout (23), bumping post (24) and locating component (25), the left and right sides face upper end of casing (1) is seted up to spout (23) symmetry, the rear side slider of protecting crust (21) respectively with spout (23) sliding connection, the left and right sides face symmetry of protecting crust (21) is equipped with ejector pad (22), the left and right sides face symmetry of casing (1) is equipped with evenly distributed's bumping post (24), the inside opposite face symmetry of protecting crust (21) is equipped with locating component (25), locating component (25) and bumping post (24) cooperation set up.

3. A portable gas detector according to claim 2, characterised in that: the positioning assembly (25) comprises elastic sheets (251) and positioning columns (252), the positioning columns (252) are symmetrically arranged at the lower ends of the left inner wall and the right inner wall of the protective shell (21), the elastic sheets (251) are symmetrically arranged on the front side surface and the rear side surface of each positioning column (252), and the positioning columns (252) vertically correspond to the retaining columns (24).

4. A portable gas detector according to claim 2, characterised in that: the protective shell (21) is a transparent shell, and the protective shell (21) corresponds to the keycap (3) and the display screen (12) respectively.

5. The portable gas detector of claim 1, wherein: wear mechanism (6) and paste circle matte (65) including card post (61), fixed plate (62), connecting band (63), connecting hole (64) and magic, card post (61) all with the trailing flank middle part round hole joint of casing (1), the trailing flank of card post (61) all with the leading flank fixed connection of fixed plate (62), the trailing flank left side of fixed plate (62) is equipped with connecting band (63), the leading flank of connecting band (63) is equipped with the magic and pastes the thorn matte, connecting hole (64) have been seted up to the leading flank left end of connecting band (63), the trailing flank right side of fixed plate (62) is equipped with magic and pastes circle matte (65), connecting band (63) and magic are pasted circle matte (65) cooperation and are set up.

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