CN113993310A

CN113993310A - High-efficient explosion-proof structure of four unification gas detection terminals

Info

Publication number: CN113993310A
Application number: CN202111134088.2A
Authority: CN
Inventors: 林明奇; 罗勇; 郭亮亮; 吴世立
Original assignee: Beijing Bangand Information Technology Co ltd
Current assignee: Beijing Bangand Information Technology Co ltd
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2022-01-28
Anticipated expiration: 2041-09-27
Also published as: CN113993310B

Abstract

The invention discloses a high-efficiency explosion-proof structure of a four-in-one gas detection terminal, which comprises an outer shell and an explosion-proof inner shell fixedly embedded in the outer shell, wherein an explosion-proof plate and a fixed plate are arranged in the explosion-proof inner shell at intervals from top to bottom, a detection cavity, a control cavity and a storage cavity are sequentially formed in the explosion-proof inner shell by the explosion-proof plate and the fixed plate, a blocking frame is arranged at the center in the detection cavity, and a gas detection mechanism is arranged in the blocking frame. According to the invention, the detection work of gas is arranged in the detection cavity, and if the detection cavity is internally exploded, shock waves generated by explosion can directly act on the sealing plate in the sealing assembly and the movable plate in the buffer assembly, so that the sealing plate moves upwards along the direction of the fixed column until the sealing plate seals the air inlet pipe, and the situation of continuous explosion is avoided, and the movable plate is impacted when exploded and can act on the movable plate and the plurality of second springs, thereby buffering the impact force in a force unloading way.

Description

High-efficient explosion-proof structure of four unification gas detection terminals

Technical Field

The invention relates to the technical field of gas detection terminals, in particular to a four-in-one gas detection terminal efficient explosion-proof structure.

Background

Traditional electrochemistry type gas detection appearance is at the in-process of actual detection gas concentration, its sensing head needs periodic replacement, because the gaseous sensitive material of encapsulation produces electrochemical reaction after the gaseous that awaits measuring of contact in this sensing head, not only the reaction is comparatively slow, still can carry out self consumption, influence the life of sensing head, also add the degree of difficulty for gas detection work, and adopt electrochemistry type detecting instrument terminal to gas detection time measuring, detect methane concentration in the municipal drainage pipe network, monitor coal gas in the environment that air humidity is big, in detection environment such as natural gas leakage, there is the condition of gas explosion, thereby detection terminal need possess explosion-proof capability.

Traditional four unification gas detection terminals generally make detection terminal have certain explosion-proof performance through sealed explosion-proof casing, but casing sealing performance is relatively poor for explosion-proof effect is general, still has faint current transmission between the main control board that detection terminal inside set up and the detection sensor, if the condition of taking place the short circuit, inside explosive gas entered into the casing through the gap, arouses the explosion very easily.

Therefore, it is necessary to invent a high-efficiency explosion-proof structure of a four-in-one gas detection terminal.

Disclosure of Invention

Therefore, the invention provides a high-efficiency explosion-proof structure of a four-in-one gas detection terminal, wherein an explosion-proof inner shell is fixedly embedded in the shell, a detection cavity, a control cavity and a storage cavity are arranged in the explosion-proof inner shell, a sealing assembly and a buffer assembly are arranged in the detection cavity, and the problems of poor shell sealing performance and general explosion-proof effect of the traditional four-in-one gas detection terminal are solved by installing gas detection work in the detection cavity.

In order to achieve the above purpose, the invention provides the following technical scheme: a high-efficiency explosion-proof structure of a four-in-one gas detection terminal comprises an outer shell and an explosion-proof inner shell fixedly embedded in the outer shell, wherein an explosion-proof plate and a fixed plate are arranged in the explosion-proof inner shell at intervals from top to bottom, a detection cavity, a control cavity and a storage cavity are sequentially formed in the explosion-proof inner shell by the explosion-proof plate and the fixed plate, a mounting plate is arranged on one side of the detection cavity, the mounting plate is matched with the detection cavity and is connected with the explosion-proof inner shell through a plurality of bolts, a blocking frame is arranged at the center of the inner part of the detection cavity, a gas detection mechanism is arranged in the blocking frame, movable plates are respectively arranged on two sides of the blocking frame, two buffer cavities are formed on two sides of the blocking frame by the movable plates, the explosion-proof plate and the blocking frame, a buffer assembly is arranged in the buffer cavities, an air inlet pipe is arranged at the top of the outer shell and penetrates through the explosion-proof inner shell and extends to the inside of the detection cavity to be communicated with the detection cavity, and a sealing assembly is arranged at the top end in the buffer cavity, and the position of the sealing assembly corresponds to the position of the air inlet pipe.

Preferably, the gas detection mechanism comprises a detection circuit board, four detection components are arranged on the detection circuit board, each detection component comprises an insulating sleeve, the bottom of the insulating sleeve is fixedly connected with the detection circuit board, a first signal post is sleeved inside the insulating sleeve and electrically connected with the detection circuit board, a first spring is arranged inside the insulating sleeve, the first spring is sleeved outside the first signal post, a signal sheet is arranged at the top of the first signal post, the top of the first spring is fixedly connected with the signal sheet, the bottom of the first spring is fixedly connected with the detection circuit board, a detection sensor is arranged at the top of the insulating sleeve, a mounting seat is fixedly connected at the bottom of the detection sensor and is in threaded connection with the insulating sleeve, a second signal post is connected at the bottom of the mounting seat and is electrically connected with the detection sensor, the upper end face and the lower end face of the signal sheet are respectively abutted against the second signal column and the first signal column.

Preferably, the buffering subassembly includes a plurality of second springs, second spring bottom is provided with the partition panel, by partition panel, explosion-proof board and separation frame form the packing chamber in buffer cavity inside bottom, the spacing groove has all been seted up to separation frame both sides and explosion-proof board both sides, the inside movable block that is equipped with that inlays of spacing groove, movable block and fly leaf fixed connection, second spring bottom and partition panel fixed connection, second spring top and fly leaf fixed connection.

Preferably, the sealing assembly comprises two fixing columns, a sealing plate is arranged on one side of each fixing column, the fixing columns penetrate through the sealing plate and extend to the bottom of the sealing plate, a mounting groove is formed in each fixing column, a third spring is arranged in the mounting groove, a movable clamping block is arranged on one side of the third spring, one end of the third spring is fixedly connected with one fixing column, the other end of each fixing column is fixedly connected with the corresponding movable clamping block, the movable clamping block is embedded in the mounting groove, an arc notch is formed in one end, away from the fixing column, of the corresponding movable clamping block, the end face of the notch is smooth, a clamping ring is fixedly connected to the bottom of each fixing column, and the clamping ring is abutted to the sealing plate.

Preferably, the inside master control board that is provided with of control chamber, the central position department all is provided with explosion-proof sealed interface on the explosion-proof board and the fixed plate that correspond the position department of barrier frame, explosion-proof sealed interface includes the sleeve pipe, the sleeve pipe runs through the explosion-proof board and extends to the explosion-proof board both sides, the inside wire that is provided with of sleeve pipe, the inside packing that is provided with of sleeve pipe has epoxy and carries out the shutoff through explosion-proof cement.

Preferably, the storage cavity is internally provided with a storage battery, the output end of the storage battery is connected with the main control board through a lead, and the output end of the main control board is electrically connected with the detection circuit board through a lead.

Preferably, the inside locating plate that is provided with of barrier frame, the locating plate sets up in detection circuit board top, four insulating sleeve top among the detection subassembly all runs through and detects the locating plate and extends to the locating plate top.

Preferably, a plurality of through grooves are formed in the blocking frame, the top of the sleeve extends into the through grooves, the detection sensor is embedded into the through grooves, and two rotating grooves are formed in the detection sensor.

Preferably, a cover body is arranged on one side of the shell, a display screen and a key are embedded on the cover body, the display screen and the key are respectively and electrically connected with the main control board, and the cover body cylinder is fixedly connected with the shell through a plurality of bolts.

Preferably, the buffering subassembly still includes two connecting rods, the connecting rod bottom is provided with the backup pad, the embedded groove has been seted up in the backup pad, the inside activity of embedded groove is provided with two sliding seats, sliding seat one side fixedly connected with spliced pole, two be provided with between the sliding seat with the spacing section of thick bamboo of spliced pole assorted just spacing section of thick bamboo is fixed to be set up inside the embedded groove, the inside cover of spacing section of thick bamboo is equipped with the fourth spring, fourth spring both ends respectively with the spliced pole fixed connection of two sliding seats one side, first spread groove has been seted up on the sliding seat, two second spread grooves have been seted up to the fly leaf bottom, inside the connecting rod both ends extend to first spread groove and second spread groove respectively, the connecting rod both ends all are connected with sliding seat and fly leaf respectively through swivelling joint spare.

The invention has the beneficial effects that:

1. the invention is characterized in that the explosion-proof inner shell is fixedly embedded in the shell, the detection cavity, the control cavity and the storage cavity are arranged in the explosion-proof inner shell, the sealing component and the buffer component are arranged in the detection cavity, and the detection work of gas is arranged in the detection cavity, so that the explosion in the detection cavity is controlled to avoid the explosion degree and the impact force as much as possible under the condition of circuit and electric leakage, if the explosion is generated in the detection cavity, the impact wave generated by the explosion can directly act on the sealing plate in the sealing component and the movable plate in the buffer component, so that the sealing plate moves upwards along the direction of the fixed column until the sealing plate seals the air inlet pipe, the external air is isolated from entering the detection cavity, and the subsequent condition of interlinked explosion is avoided, the impact force when the movable plate is exploded can act on the movable plate and a plurality of second springs, thereby carrying out force unloading and buffering on the impact force.

2. In the invention, the detection assembly is arranged in the detection cavity, the detection circuit board is arranged in the separation frame, the detection circuit board is provided with a plurality of first signal columns and covers the first signal columns through the insulation sleeve, the bottom of the detection sensor is provided with the mounting seat and the bottom of the detection sensor is provided with the second signal column, the detection sensor is in threaded connection with the insulation sleeve through the mounting seat until the detection sensor is embedded into the through groove on the separation frame, the second signal column is in the process of moving downwards along the insulation sleeve, the second signal column is abutted against the signal sheet and pushes the signal sheet to compress the first spring until the second signal column is electrically connected with the first signal column through the signal sheet, the insulation sleeve is arranged to completely seal the connection between the detection sensor and the detection circuit board, and the connection circuit and the detection circuit board are prevented from being directly exposed in detection gas, the condition that the electric leakage takes place is reduced, compares tradition simultaneously, can carry out nimble change with detecting sensor, according to the gas that will detect, changes required detecting sensor to the gaseous holistic practicality, suitability and the usability of four unifications have been improved.

Drawings

FIG. 1 is a schematic view of the overall structure of a four-in-one gas detection terminal high-efficiency explosion-proof structure provided by the invention;

FIG. 2 is an exploded view of the high-efficiency explosion-proof structure of the four-in-one gas detection terminal provided by the invention;

FIG. 3 is an exploded view of a portion of the structure of the gas detection mechanism provided by the present invention;

FIG. 4 is a cross-sectional view of a four-in-one gas detection terminal high-efficiency explosion-proof structure provided by the invention;

FIG. 5 is an enlarged view of the invention at A in FIG. 2;

FIG. 6 is an enlarged view at B of FIG. 4 in accordance with the present invention;

FIG. 7 is an enlarged view at C of FIG. 4 in accordance with the present invention;

FIG. 8 is a schematic structural diagram of example 2 provided in the present invention;

fig. 9 is an enlarged view of the invention at D in fig. 8.

In the figure: 1. a housing; 2. an explosion-proof inner shell; 3. an explosion-proof plate; 4. a fixing plate; 5. a detection chamber; 6. a control chamber; 7. a storage chamber; 8. mounting a plate; 9. a barrier frame; 10. a gas detection mechanism; 11. a movable plate; 12. A buffer assembly; 13. an air inlet pipe; 14. a seal assembly; 15. detecting the circuit board; 16. a detection component; 17. An insulating sleeve; 18. a first signal post; 19. a first spring; 20. a signal sheet; 21. a detection sensor; 22. a mounting seat; 23. a second signal post; 24. a second spring; 25. a partition panel; 26. a first fill cavity; 27. a limiting groove; 28. a movable block; 29. fixing a column; 30. a sealing plate; 31. mounting grooves; 32. a third spring; 33. a movable clamping block; 34. a snap ring; 35. a main control board; 36. a sleeve; 37. a storage battery; 38. Positioning a plate; 39. a second connecting groove; 40. a rotating tank; 41. a cover body; 42. a display screen; 43. pressing a key; 44. a connecting rod; 45. a support plate; 46. a groove is embedded; 47. a movable seat; 48. connecting columns; 49. a limiting cylinder; 50. a fourth spring; 51. the first connecting groove.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Embodiment 1, referring to fig. 1-2, the high-efficiency explosion-proof structure of a four-in-one gas detection terminal provided by the invention comprises an outer shell 1 and an explosion-proof inner shell 2 fixedly embedded in the outer shell 1, wherein an explosion-proof plate 3 and a fixed plate 4 are arranged at intervals from top to bottom in the explosion-proof inner shell 2, a detection cavity 5, a control cavity 6 and a storage cavity 7 are sequentially formed in the explosion-proof inner shell 2 by the explosion-proof plate 3 and the fixed plate 4, a mounting plate 8 is arranged at one side of the detection cavity 5, the mounting plate 8 is matched with the detection cavity 5, the mounting plate 8 is connected with the explosion-proof inner shell 2 through a plurality of bolts, a barrier frame 9 is arranged at the center in the detection cavity 5, a gas detection mechanism 10 is arranged in the barrier frame 9, two movable plates 11 are respectively arranged at two sides of the barrier frame 9, two buffer cavities are formed at two sides of the barrier frame 9 by the two movable plates 11, the explosion-proof plate 3 and the barrier frame 9, the inside buffer unit 12 that is provided with of cushion chamber, 1 top of shell is provided with intake pipe 13, intake pipe 13 runs through shell 1 and explosion-proof inner shell 2 and extends to detect intracavity 5 inside and detect chamber 5 and communicate with each other, the inside top of cushion chamber is provided with seal assembly 14, seal assembly 14's position is corresponding with intake pipe 13's position.

The invention fixedly embeds the explosion-proof inner shell 2 in the outer shell 1, the detection cavity 5, the control cavity 6 and the storage cavity 7 are arranged in the explosion-proof inner shell 2, the sealing component 14 and the buffer component 12 are arranged in the detection cavity 5, and the detection work of gas is arranged in the detection cavity 5, so that the explosion in the detection cavity 5 is controlled if a circuit and electric leakage occurs, the explosion degree and impact force are avoided as much as possible, if the explosion occurs in the detection cavity 5, the impact wave generated by the explosion can directly act on the sealing plate 30 in the sealing component 14 and the movable plate 11 in the buffer component 12, and the sealing plate 30 moves upwards along the direction of the fixed column 29 until the sealing plate 30 seals the air inlet pipe 13, and the external air is isolated from entering the detection cavity 5, thereby avoiding the subsequent catenated explosion, the impact force when the movable plate 11 is exploded acts on the movable plate 11 and the plurality of second springs 24 to absorb the impact force, the detection assembly 16 is disposed inside the detection chamber 5, the detection circuit board 15 is disposed inside the separation frame 9, the plurality of first signal posts 18 are disposed on the detection circuit board 15 and the first signal posts 18 are covered by the insulation sleeve 17, the mounting seat 22 is disposed at the bottom of the detection sensor 21 and the second signal posts 23 are disposed at the bottom of the detection sensor 21, the detection sensor 21 is in threaded connection with the insulation sleeve 17 through the mounting seat 22, the detection sensor 21 is connected with the detection circuit board 15 by adopting a special connection structure with a plurality of insulation sleeves 17, springs, the first signal posts 18, the second signal posts 23, the signal sheets 20 and the mounting seat 22, the detection sensor 21 can be flexibly replaced, the detection sensor 21 is replaced as required according to the gas to be detected, thereby improving the practicability, applicability and usability of the four-in-one gas as a whole.

Referring to fig. 3-7, further, the gas detection mechanism 10 includes a detection circuit board 15, four detection components 16 are disposed on the detection circuit board 15, the detection components 16 include an insulating sleeve 17, the bottom of the insulating sleeve 17 is fixedly connected to the detection circuit board 15, a first signal column 18 is sleeved inside the insulating sleeve 17, the first signal column 18 is electrically connected to the detection circuit board 15, a first spring 19 is disposed inside the insulating sleeve 17, the first spring 19 is sleeved outside the first signal column 18, a signal sheet 20 is disposed on the top of the first signal column 18, the top of the first spring 19 is fixedly connected to the signal sheet 20, the bottom of the first spring 19 is fixedly connected to the detection circuit board 15, a detection sensor 21 is disposed on the top of the insulating sleeve 17, a mounting seat 22 is fixedly connected to the bottom of the detection sensor 21, and the mounting seat 22 is in threaded connection with the insulating sleeve 17, the bottom of the mounting seat 22 is connected with a second signal column 23, the second signal column 23 is electrically connected with the detection sensor 21, the upper end surface and the lower end surface of the signal sheet 20 are respectively abutted against the second signal column 23 and the first signal column 18, the barrier frame 9 is provided with a plurality of through grooves, the top of the sleeve 36 extends into the through grooves, the detection sensor 21 is embedded in the through grooves, and the detection sensor 21 is provided with two rotary grooves 40;

four detection components 16 are arranged on the detection circuit board 15, the four detection components 16 comprise four different detection sensors 21, it can be known that the traditional four-in-one gas monitoring is usually used for detecting oxygen, hydrogen sulfide, carbon monoxide and combustible gas, because the detection circuit board 15 is electrically connected with four first signal columns 18, and the outsides of the first signal columns 18 are respectively sleeved with an insulating sleeve 17, because the bottom of the detection sensor 21 is fixedly connected with an installation seat 22, the bottom of the installation seat 22 is provided with a second signal column 23, the second signal column 23 can be sleeved at the bottom of the installation seat 22 and is electrically connected with the detection sensor 21, a spring is arranged inside the insulating sleeve 17, when the detection sensor 21 is required to be connected with the detection circuit board 15, the detection sensor 21 is connected with the insulating sleeve 17 through the installation seat 22, namely, the force is applied to the detection sensor 21 to drive the installation seat 22 to rotate, the mounting seat 22 is in threaded connection with the insulating sleeve 17, so that the detection sensor 21 can be mounted on the insulating sleeve 17, the mounting seat 22 rotates to enable the detection sensor 21 to be in threaded connection with the insulating sleeve 17 through the mounting seat 22 until the detection sensor 21 is embedded into the through groove on the barrier frame 9, the second signal column 23 abuts against the signal sheet 20 and pushes the signal sheet 20 to compress the first spring 19 in the process of moving down along the insulating sleeve 17 until the second signal column 23 is electrically connected with the first signal column 18 through the signal sheet 20, the connection between the detection sensor 21 and the detection circuit board 15 is completely sealed by the arrangement of the insulating sleeve 17, the connection circuit and the detection circuit board 15 are prevented from being directly exposed in detection gas, the condition of electric leakage is reduced, and the detection sensor 21 can be flexibly replaced by adopting the method, the detection sensor 21 required correspondingly is replaced according to the gas to be detected, so that the current detection terminal can meet the detection work of the gas to be detected, thereby improving the practicability, the applicability and the usability of the four-in-one gas, when the detection sensor 21 is installed, because the isolation frame 9 is provided with a plurality of through grooves, after the installation is finished, the detection sensor 21 is wholly embedded into the through grooves, the upper end surface of the detection sensor 21 and the upper end surface of the separation frame 9 are positioned on the same horizontal plane, so that the connection between the detection sensor 21 and the detection circuit board 15 is completely sealed, the connection circuit and the detection circuit board 15 are prevented from being directly exposed in the detection gas, the condition of electric leakage is reduced, the two rotation slots 40 provided on the detection sensor 21 facilitate the application of force to the detection sensor 21, i.e. the connection of the detection sensor 21 to the insulating sleeve 17 via the mounting seat 22.

Further, the buffer assembly 12 comprises a plurality of second springs 24, partition plates 25 are arranged at the bottoms of the second springs 24, filling cavities 26 are formed at the bottom ends of the interiors of the buffer cavities by the partition plates 25, the explosion-proof plates 3 and the partition frame 9, limiting grooves 27 are formed in two sides of the partition frame 9 and two sides of the explosion-proof plate 3, movable blocks 28 are embedded in the limiting grooves 27, the movable blocks 28 are fixedly connected with the movable plate 11, the bottoms of the second springs 24 are fixedly connected with the partition plates 25, and the tops of the second springs 24 are fixedly connected with the movable plate 11;

two buffer cavities are formed on two sides of the separation frame 9 by the movable plate 11, the explosion-proof plate 3 and the separation frame 9, a buffer component 12 is arranged in the buffer cavity, the detection work of gas is arranged in the detection cavity 5, so that if the situation of circuit generation and electric leakage occurs, the explosion is controlled in the detection cavity 5 only in the detection cavity 5, the explosion degree and the impact force are avoided as much as possible, the buffer component 12 is arranged in the detection cavity 5, when the explosion is generated in the detection cavity, because the volume of the detection cavity 5 is fixed, the impact generated by the explosion directly acts on the movable plate 11, the movable plate 11 is pushed to move downwards and generate thrust to the second spring 24, the second spring 24 is compressed, the brief introduction of the movable plate 11 is pushed, the volume of the detection cavity 5 is enlarged, and the impact force can be buffered in a discharging way, fill cavity 26 inside and fill thermal insulation material for isolated heat, avoid the inside produced heat transfer of other intracavity portions of terminal to detect the intracavity 5 inside, avoid gaseous detection mechanism 10 to the gaseous detection data production error of awaiting measuring.

Further, the sealing assembly 14 includes two fixing columns 29, a sealing plate 30 is disposed on one side of each fixing column 29, each fixing column 29 penetrates through the sealing plate 30 and extends to the bottom of the sealing plate 30, an installation groove 31 is formed in each fixing column 29, a third spring 32 is disposed inside the installation groove 31, a movable clamping block 33 is disposed on one side of the third spring 32, one fixing column 29 is fixedly connected to one end of the third spring 32, the other end of each fixing column 29 is fixedly connected to the movable clamping block 33, the movable clamping block 33 is embedded in the installation groove 31, an arc notch is formed in one end, away from the fixing column 29, of the movable clamping block 33, the end face of the notch is smooth, a clamping ring 34 is fixedly connected to the bottom of each fixing column 29, and the clamping ring 34 abuts against the sealing plate 30;

if an explosion occurs inside the detection cavity 5, the shock wave generated by the explosion directly acts on the sealing plate 30 in the sealing assembly 14 and the movable plate 11 in the buffer assembly 12, so that the sealing plate 30 moves upwards along the direction of the fixed column 29, because the lower end of the movable clamping block 33 is provided with the arc notch which is smoothly arranged, the sealing plate 30 pushes the movable clamping block 33 to reset and compress the third spring 32 in the process of moving upwards, until the movable clamping block 33 is completely embedded into the installation groove 31, then the sealing plate 30 is separated from being in contact with the movable clamping block 33, the movable clamping block 33 is separated from the installation groove 31 by the reaction force of the third spring 32 and extends to one side of the fixed column 29, at this time, the movable clamping block 33 forms a supporting force on the bottom of the sealing plate 30, so that the sealing plate 30 completely adheres to the top of the explosion-proof inner shell 2 and seals the bottom of the air inlet pipe 13, therefore, the sealing plate 30 moves upwards along the direction of the fixing column 29 until the sealing plate 30 seals the air inlet pipe 13, and the external air is isolated from entering the detection cavity 5, so that the condition of continuous explosion is avoided.

Further, a main control board 35 is arranged inside the control cavity 6, explosion-proof sealing interfaces are arranged at positions on the explosion-proof board 3 corresponding to the barrier frame 9 and at the central position on the fixing plate 4, each explosion-proof sealing interface comprises a sleeve 36, the sleeve 36 penetrates through the explosion-proof board 3 and extends to two sides of the explosion-proof board 3, a lead is arranged inside the sleeve 36, and epoxy resin is filled in the sleeve 36 and is blocked through explosion-proof cement;

set up main control board 35 inside control chamber 6, control chamber 6 and detect and set up explosion-proof sealed interface between the chamber 5, main control board 35 is connected with the detection circuit board 15 that detects the chamber 5 inside through explosion-proof sealed interface, and the improvement of maximize is to the sealed degree that detects chamber 5 to at the during operation, can control through main control board 35 and control detection circuit board 15.

Further, a storage battery 37 is arranged in the storage cavity 7, an output end of the storage battery 37 is connected with the main control board 35 through a lead, and an output end of the main control board 35 is electrically connected with the detection circuit board 15 through a lead;

because the main control board 35 is connected with the detection circuit board 15 through a wire, the detection circuit board 15 is connected with the detection sensor 21 through the insulation sleeve 17, the spring, the first signal column 18, the second signal column 23, the signal sheet 20 and the mounting seat 22, so that the main control board 35, the detection circuit board 15 and the detection sensor 21 can be powered by the storage battery 37, and the detection work can be smoothly carried out.

Furthermore, a positioning plate 38 is arranged inside the barrier frame 9, the positioning plate 38 is arranged above the detection circuit board 15, the tops of the insulating sleeves 17 in the four detection assemblies 16 all penetrate through the detection positioning plate 38 and extend above the positioning plate 38, and the positioning plate 38 is arranged to position the plurality of detection assemblies 16, so that the fixed installation of the plurality of detection assemblies 16 on the detection circuit board 15 is realized, and meanwhile, the mutual influence among the plurality of detection assemblies 16 is avoided;

further, shell 1 one side is provided with lid 41, inlays on the lid 41 and is provided with display screen 42 and button 43, display screen 42 and button 43 respectively with main control board 35 electric connection, 41 a plurality of bolts of lid and shell 1 fixed connection, the setting of lid 41 carries out holistic sealed to the casing, the display screen 42 and the button 43 that set up on the lid 41 are convenient for the operator to use this detection terminal body to there is main control board 35 to accept the detection data signal that comes from detection component 16 and survey, will detect data signal and show on display screen 42 through main control board 35, the setting of button 43 is used for controlling main control board 35 and controls.

The using process of the invention is as follows: when the invention is used, the gas to be detected can be determined in advance according to actual needs, the detection sensor 21 corresponding to the gas to be detected is selected, the detection sensor 21 of the gas to be detected is arranged in the detection cavity 5, the detection sensor 21 of the gas to be detected is ensured to be smoothly connected with the detection circuit board 15, the mounting plate 8 is fixedly connected with the explosion-proof inner shell 2 to seal the detection cavity 5, then the cover body 41 is connected with the outer shell 1 to complete the integral connection of the detection terminal, then the air inlet pump can be used according to the actual needed rotation, if needed, the air inlet pump is arranged in the air inlet pipe 13, the key 43 on the cover body 41 controls the main control board 35, the detection circuit board 15 and the detection sensor 21 are controlled by the main control board 35 to start the detection of the gas to be detected, and the gas to be detected enters the detection cavity 5 through the near air inlet pipe 13, the gas entering the detection cavity 5 directly detects the gas through the detection sensor 21, the detection sensor 21 transmits the detected data signal to the detection circuit board 15 through the first signal column 18 and the second signal column 23, the detection circuit board 15 transmits the data signal to the main control board 35 through the wires in the explosion-proof sealing interface, the main control board 35 displays the data signal through the display screen 42, so that the staff can directly observe the detection data of the gas through the display screen 42, because the detection work of the gas is arranged in the detection cavity 5, if the detection work is the situation of generating circuit and electric leakage, the explosion is controlled to be generated in the detection cavity 5, the degree and impact force of the explosion are avoided as much as possible, if the detection work is the situation of the explosion in the detection cavity 5, the impact wave generated by the explosion can directly act on the sealing plate 30 in the sealing component 14 and the movable plate 11 in the buffer component 12, the sealing assembly 14 will seal the near term tube and the buffer assembly 12 will buffer the impact force generated by the explosion, even if the detection device is out of order, the external safety will not be affected.

Embodiment 2, referring to fig. 8 to 9, the invention provides a four-in-one gas detection terminal efficient explosion-proof structure:

the buffer assembly 12 further comprises two connecting rods 44, a supporting plate 45 is arranged at the bottom of each connecting rod 44, an embedded groove 46 is arranged on the supporting plate 45, two movable seats 47 are movably arranged in the embedded groove 46, a connecting column 48 is fixedly connected with one side of each movable seat 47, a limiting cylinder 49 matched with the connecting column 48 is arranged between the two movable seats 47, the limiting cylinder 49 is fixedly arranged in the embedded groove 46, a fourth spring 50 is sleeved in the limiting cylinder 49, two ends of the fourth spring 50 are respectively and fixedly connected with the connecting column 48 at one side of the two movable seats 47, the movable seat 47 is provided with a first connecting slot 51, the bottom of the movable plate 11 is provided with two second connecting slots 39, the link 44 has both ends respectively extending into the first and

second coupling grooves

51 and 39, both ends of the connecting rod 44 are respectively connected with the movable seat 47 and the movable plate 11 through rotary connectors.

In this embodiment, the buffer assembly 12 includes a connection component, a support plate 45, a mounting seat 22, a limiting cylinder 49 and a fourth spring 50, an impact force generated by an explosion directly acts on the movable plate 11, the impact force pushes the movable plate 11 to move downward, in the process of moving downward the movable plate 11, the movable plate 11 applies pressure to the two connecting rods 44, because the connecting rods 44 are in an inclined state in an initial state, and further when the connecting rods 44 are under pressure, because the two ends of the two connecting rods 44 are both provided with a rotating connection member, the two connecting rods 44 can rotate, the mounting seat 22 at the bottom of the connecting rods 44 is pushed to move along the direction of the embedded groove 46, the mounting seats 22 corresponding to the two connecting rods 44 can approach each other, and further the two mounting seats 22 can compress the fourth spring 50, because the fourth spring 50 is disposed inside the limiting cylinder 49, energy generated in the moving process of the whole connecting rods 44 can be transferred, meanwhile, the connecting rod 44 and the mounting seat 22 are also subjected to friction force in the moving process, so that the impact force on the movable plate 11 is consumed, and further the impact force on the movable plate 11 can be buffered in a force unloading manner.

The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solution described above. Therefore, any simple modifications or equivalent substitutions made in accordance with the technical solution of the present invention are within the scope of the claims of the present invention.

Claims

1. The utility model provides a high-efficient explosion-proof structure of four unification gas detection terminals which characterized in that: including shell (1), fixed inlay and establish explosion-proof inner shell (2) inside shell (1), explosion-proof inner shell (2) is inside from top to bottom the interval and is provided with explosion-proof board (3) and fixed plate (4), by explosion-proof board (3) and fixed plate (4) form detection chamber (5), control chamber (6) and storage chamber (7) in explosion-proof inner shell (2) inside in proper order, it is provided with mounting panel (8) to detect chamber (5) one side, mounting panel (8) and detection chamber (5) phase-match just mounting panel (8) are connected with explosion-proof inner shell (2) through a plurality of bolts, it is provided with separation frame (9) to detect chamber (5) inside central authorities department, separation frame (9) inside is provided with gaseous detection mechanism (10), separation frame (9) both sides are provided with fly leaf (11) respectively, by two fly leaf (11), Explosion-proof board (3) and separation frame (9) form two cushion chambers in separation frame (9) both sides, cushion chamber inside is provided with buffer assembly (12), shell (1) top is provided with intake pipe (13), intake pipe (13) run through shell (1) and explosion-proof inner shell (2) and extend to detect chamber (5) inside and detect chamber (5) and communicate with each other, the inside top in cushion chamber is provided with seal assembly (14), the position of seal assembly (14) is corresponding with the position of intake pipe (13).

2. The high-efficiency explosion-proof structure of the four-in-one gas detection terminal according to claim 1, characterized in that: the gas detection mechanism (10) comprises a detection circuit board (15), four detection components (16) are arranged on the detection circuit board (15), each detection component (16) comprises an insulating sleeve (17), the bottom of the insulating sleeve (17) is fixedly connected with the detection circuit board (15), a first signal column (18) is sleeved inside the insulating sleeve (17), the first signal column (18) is electrically connected with the detection circuit board (15), a first spring (19) is arranged inside the insulating sleeve (17), the first spring (19) is sleeved outside the first signal column (18), a signal sheet (20) is arranged at the top of the first signal column (18), the top of the first spring (19) is fixedly connected with the signal sheet (20), the bottom of the first spring (19) is fixedly connected with the detection circuit board (15), a detection sensor (21) is arranged at the top of the insulating sleeve (17), detect sensor (21) bottom fixedly connected with mount pad (22) just mount pad (22) and insulating sleeve (17) threaded connection, mount pad (22) bottom is connected with second signal post (23) just second signal post (23) and detect sensor (21) electric connection, signal piece (20) up end and lower terminal surface respectively with second signal post (23) and first signal post (18) butt.

3. The high-efficiency explosion-proof structure of the four-in-one gas detection terminal according to claim 1, characterized in that: buffer unit (12) include a plurality of second springs (24), second spring (24) bottom is provided with partition panel (25), by partition panel (25), explosion-proof board (3) and separation frame (9) form filling chamber (26) at buffer chamber inside bottom, spacing groove (27) have all been seted up to separation frame (9) both sides and explosion-proof board (3) both sides, spacing groove (27) inside inlays and is equipped with movable block (28), movable block (28) and fly leaf (11) fixed connection, second spring (24) bottom and partition panel (25) fixed connection, second spring (24) top and fly leaf (11) fixed connection.

4. The high-efficiency explosion-proof structure of the four-in-one gas detection terminal according to claim 1, characterized in that: the sealing assembly (14) comprises two fixing columns (29), a sealing plate (30) is arranged on one side of each fixing column (29), each fixing column (29) penetrates through the sealing plate (30) and extends to the bottom of the sealing plate (30), an installation groove (31) is formed in each fixing column (29), a third spring (32) is arranged in each installation groove (31), a movable clamping block (33) is arranged on one side of each third spring (32), one fixing column (29) is fixedly connected to one end of each third spring (32), the other end of each fixing column (29) is fixedly connected with the corresponding movable clamping block (33), each movable clamping block (33) is embedded in each installation groove (31), an arc notch is formed in one end, far away from each fixing column (29), of each movable clamping block (33), the end face of each notch is arranged smoothly, and a clamping ring (34) is fixedly connected to the bottom of each fixing column (29), the snap ring (34) abuts against the seal plate (30).

5. The high-efficiency explosion-proof structure of the four-in-one gas detection terminal according to claim 1, characterized in that: the explosion-proof sealing device is characterized in that a main control board (35) is arranged inside the control cavity (6), explosion-proof sealing interfaces are arranged at the positions, corresponding to the blocking frames (9), on the explosion-proof board (3) and the central position on the fixing plate (4), and comprise a sleeve (36), the sleeve (36) penetrates through the explosion-proof board (3) and extends to the two sides of the explosion-proof board (3), a lead is arranged inside the sleeve (36), and the sleeve (36) is filled with epoxy resin and is blocked through explosion-proof cement.

6. The high-efficiency explosion-proof structure of the four-in-one gas detection terminal according to claim 1, characterized in that: the storage cavity (7) is internally provided with a storage battery (37), the output end of the storage battery (37) is connected with the main control board (35) through a lead, and the output end of the main control board (35) is electrically connected with the detection circuit board (15) through a lead.

7. The high-efficiency explosion-proof structure of the four-in-one gas detection terminal according to claim 1, characterized in that: the blocking frame (9) is internally provided with a positioning plate (38), the positioning plate (38) is arranged above the detection circuit board (15), and the tops of the insulating sleeves (17) in the detection assemblies (16) are all penetrated through the detection positioning plate (38) and extend to the upper side of the positioning plate (38).

8. The high-efficiency explosion-proof structure of the four-in-one gas detection terminal according to claim 1, characterized in that: the utility model discloses a set up two revolving grooves (40) on the detection sensor, set up a plurality of logical grooves on spacing frame (9), inside sleeve pipe (36) top extended to logical groove, detection sensor (21) inlay and establish in leading to the inslot, two revolving chutes (40) have been seted up on detection sensor (21).

9. The high-efficiency explosion-proof structure of the four-in-one gas detection terminal according to claim 1, characterized in that: shell (1) one side is provided with lid (41), inlays on lid (41) and is provided with display screen (42) and button (43), display screen (42) and button (43) respectively with main control board (35) electric connection, a plurality of bolts of lid (41) section of thick bamboo and shell (1) fixed connection.

10. The high-efficiency explosion-proof structure of the four-in-one gas detection terminal according to claim 1, characterized in that: the buffer assembly (12) further comprises two connecting rods (44), a supporting plate (45) is arranged at the bottom of each connecting rod (44), an embedded groove (46) is formed in the supporting plate (45), two movable seats (47) are movably arranged in the embedded groove (46), a connecting column (48) is fixedly connected to one side of each movable seat (47), a limiting cylinder (49) matched with the connecting column (48) is arranged between the two movable seats (47), the limiting cylinder (49) is fixedly arranged in the embedded groove (46), a fourth spring (50) is sleeved in each limiting cylinder (49), two ends of each fourth spring (50) are fixedly connected with the connecting columns (48) on one side of the two movable seats (47) respectively, a first connecting groove (51) is formed in each movable seat (47), two second connecting grooves (39) are formed in the bottom of the movable plate (11), the two ends of the connecting rod (44) respectively extend into the first connecting groove (51) and the second connecting groove (39), and the two ends of the connecting rod (44) are respectively connected with the movable seat (47) and the movable plate (11) through rotary connecting pieces.