CN112285085A

CN112285085A - Automatic sensitive device replacing module

Info

Publication number: CN112285085A
Application number: CN202011354659.9A
Authority: CN
Inventors: 丁志强; 袁丁; 吴红彦; 夏征
Original assignee: Beijing Htnova Detection Technology Co ltd
Current assignee: Beijing Htnova Detection Technology Co ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-01-29

Abstract

The invention relates to a module capable of automatically replacing a sensitive device, and belongs to the technical field of trace explosive detection. This automatic change sensing device module, comprising a base plate, the fixed spectrum appearance subassembly that is used for detecting the sensing device that is equipped with on the bottom plate, one side of spectrum appearance subassembly is equipped with the heating element who is used for heating trace explosive, be equipped with the first passageway of settling that link up the spectrum appearance subassembly in the spectrum appearance subassembly, the relative opposite side of spectrum appearance subassembly is equipped with the solenoid valve subassembly that is used for controlling the gas circuit, be connected through trading the pipe subassembly between spectrum appearance subassembly and the solenoid valve subassembly, be equipped with a plurality of sensing devices on the pipe subassembly of trading, a plurality of sensing devices stretch into in the first passageway of settling, all be equipped with the link assembly that is used for rotating the solenoid valve subassembly between the both sides that the both sides. Has the advantages that: the sensitive device module is convenient to replace, the problem of frequent replacement of consumables is solved, the structure is compact, and the occupied space is small.

Description

Automatic sensitive device replacing module

Technical Field

The invention belongs to the technical field of fluorescent trace explosive detection, and particularly relates to a module capable of automatically replacing a sensitive device.

Background

The detector for the fluorescent trace explosives is detection equipment integrating machinery, electronics, chemistry and optics, and has the main working principle that: after trace explosives of a detection object are obtained through the sampling sheet, the sampling sheet is inserted into a heating groove corresponding to the detector to be heated, the trace explosives are evaporated, the evaporated trace explosives are sucked into the sensitive device through the air inlet nozzle to be subjected to quenching reaction, so that the trace explosives are detected by the optical sensor, and signals are transmitted to the circuit board to be subjected to acousto-optic alarm.

Because the sensitive device needs to be installed into the spectrometer module and needs a plurality of groups for detection, the problem of inconvenient replacement exists when the sensitive device is disassembled.

Therefore, a module for automatically replacing a sensitive device is provided to solve the defects in the prior art.

Disclosure of Invention

The invention aims to solve the technical problems and provides an automatic sensitive device replacing module which is convenient to replace a sensitive device module, a plurality of solenoid valve assemblies are used for switching different gas circuits, each gas circuit can be combined or used independently, the problem of frequent consumable replacement is solved, the structure is compact, and the occupied space is small.

The technical scheme for solving the technical problems is as follows: this automatic change sensitive device module includes the bottom plate, the fixed spectrum appearance subassembly that is used for detecting sensitive device that is equipped with on the bottom plate, one side of spectrum appearance subassembly is equipped with the heating element who is used for heating trace explosive, be equipped with in the spectrum appearance subassembly and link up the first passageway of settling of spectrum appearance subassembly, the relative opposite side of spectrum appearance subassembly is equipped with the solenoid valve assembly who is used for controlling the gas circuit, spectrum appearance subassembly with connect through trading the pipe subassembly between the solenoid valve assembly, it is equipped with a plurality of sensitive devices on the pipe subassembly to trade, and is a plurality of sensitive device stretches into in the first passageway of settling, the both sides of spectrum appearance subassembly respectively with all be equipped with between the both sides that solenoid valve assembly corresponds and be used for rotating the link assembly of solenoid valve assembly.

Has the advantages that: heating element heats trace explosive and makes it gasify, then utilizes solenoid valve subassembly to inhale in the sensitive device, detects through the spectrum appearance subassembly, and the sensitive device module is conveniently changed in setting up of link assembly, and a plurality of solenoid valve subassemblies are used for switching different gas circuits, and every gas circuit can make up or independent utility, solves the problem of frequently changing the consumptive material, compact structure, and occupation space is few.

Further, the heating component comprises an air path splitter plate, an air inlet nozzle, a heating plate, a heat insulation plate, a first O-shaped ring and a first spectrometer sleeve, one side of the air path splitter plate is fixedly arranged on the side wall of the spectrometer component through the heat insulation plate, the air inlet nozzle is arranged on the other side of the air path splitter plate, one end of the air inlet nozzle extends into the air path splitter plate, a plurality of first air channels are arranged in the air path splitter plate, the air inlet nozzle is communicated with the first air channels, a containing groove for containing the heating plate is arranged on the contact surface of the air path splitter plate and the heat insulation plate, a plurality of sensing devices respectively extend into the air path splitter plate, the plurality of sensing devices are respectively communicated with the corresponding first air channels, and one end of the plurality of sensing devices extending into the air path splitter plate is sleeved with the first spectrometer sleeve, and a plurality of first air passing channels are internally provided with first O-shaped rings which are tightly matched with the first spectrometer sleeve.

The beneficial effect of adopting the further scheme is that: trace explosive evaporates through the heating plate, utilizes the solenoid valve subassembly to sample steam, and steam gets into respectively through first gas channel and detects in the sensitive subassembly that corresponds.

Further, the gas path flow distribution plate is provided with a first temperature sensor for detecting the heating temperature of the heating plate.

The beneficial effect of adopting the further scheme is that: the temperature of the heating plate is detected, the reaction can be smoothly carried out, and the accuracy of detection data is improved.

Further, the spectrum appearance subassembly includes spectrum appearance cavity and spectrum appearance lamp plate, the fixed spectrum appearance lamp plate that is equipped with in interior top of spectrum appearance cavity, be equipped with in the spectrum appearance cavity and run through the spectrum appearance cavity first arrangement passageway.

The beneficial effect of adopting the further scheme is that: the sensitive device is detected by the lamp panel of the spectrometer and the trace explosive generates quenching reaction under the action of light to form a new substance.

Further, a second temperature sensor for detecting temperature is arranged in the first arranging channel.

The beneficial effect of adopting the further scheme is that: the temperature of taking place the response detects in real time, is convenient for adjust as required, improves the accurate nature of data.

Further, the connecting rod assembly comprises a connecting rod, a pin, a screw rod, a knob, a connecting rod cover and a reset spring, one end of the connecting rod is fixedly connected with the electromagnetic valve assembly, the other end of the connecting rod is rotatably connected to the side wall of the spectrometer assembly through the pin, L-shaped limiting grooves are formed in two opposite sides of the spectrometer assembly, the connecting rod cover is fixedly arranged on one side of the connecting rod away from the spectrometer assembly, a threaded hole is formed in the connecting rod cover, a through hole is formed in the connecting rod, one end of the screw rod sequentially penetrates through the threaded hole in the connecting rod cover and then is connected with the limiting grooves in a sliding mode, one end of the connecting rod extending into the limiting grooves is sleeved with the reset spring, a limiting part is arranged on the connecting rod, the diameter of the threaded hole is smaller than that of the through hole, and one, the other end butt is in on the spacing portion, the spacing groove includes horizontal segment and segmental arc, and the head end of horizontal segment is equipped with and is used for cooperating the screw rod restriction the first spacing hole of solenoid valve unit position, and the end of segmental arc is equipped with and is used for cooperating the screw rod restriction the spacing hole of second of solenoid valve unit position, the other end fixed connection of screw rod the knob.

The beneficial effect of adopting the further scheme is that: when the screw rod is inserted into the first limiting hole, the equipment is in a use state at the moment, when a sensitive device needs to be detached, the knob is pulled by a hand, the screw rod is separated from the threaded hole, the connecting rod is pushed to slide in the limiting groove, so that the electromagnetic valve component rotates, the space of the pipe drawing component is made to be free, the connecting rod slides to the top of the limiting groove, the screw rod is inserted into the second limiting hole by utilizing the restoring force of the reset spring, the fixation of the electromagnetic valve component is completed, and the sensitive device is convenient to replace.

Further, the tube changing assembly comprises a tube changing shell, a second spectrometer sleeve, glass tube limiting blocks, hand-screwed screws and second O-shaped rings, wherein a plurality of second arranging channels penetrating through the tube changing shell are formed in the tube changing shell, a plurality of glass tube limiting blocks are arranged on one side, close to the spectrometer assembly, of the tube changing shell, the sensitive devices are arranged in the second arranging channels, the sensitive devices and the glass tube limiting blocks are arranged in a one-to-one correspondence mode, each sensitive device extends into the corresponding second arranging channel and abuts against the corresponding glass tube limiting block, the second O-shaped rings are arranged in the second arranging channels, the second spectrometer sleeve which is tightly matched with the second O-shaped rings is sleeved on the sensitive devices, screw columns are arranged in the spectrometer assembly, one ends of the hand-screwed screws penetrate through the tube changing shell and then extend into the screw columns, the glass tube limiting block is provided with a plurality of air guide holes used for being communicated with the electromagnetic valve assembly, and the glass tube limiting block is connected with the side wall of the electromagnetic valve assembly in a clamping mode.

The beneficial effect of adopting the further scheme is that: the gas circuit is fixed and communicated by the tube replacing assembly, the tube replacing assembly is fixed by screwing the hand-screwed screw by hand, and the sensitive device can be disassembled by loosening the hand-screwed screw in the opposite direction, so that the operation is convenient.

Further, the electromagnetic valve assembly comprises an electromagnetic valve housing, an air channel cover, electromagnetic valves, electromagnetic valve air faucets, an electromagnetic valve cover, pneumatic connectors and an air pump, one end of the electromagnetic valve housing is provided with a plurality of clamping holes matched with the sealing rings on the glass tube limiting block, the electromagnetic valves are arranged in the electromagnetic valve housing, the top and the bottom of each electromagnetic valve are respectively provided with the electromagnetic valve air faucets, the electromagnetic valve air faucets at the bottom of each electromagnetic valve are communicated with the corresponding air guide holes, the air channel cover is arranged above the electromagnetic valves, a plurality of second air passing channels are arranged in the air channel cover, the electromagnetic valve air faucets at the top of each electromagnetic valve are communicated with the inlets of the corresponding second air passing channels, the outlets of the plurality of second air passing channels are communicated and then connected with one end of an air pipe through the pneumatic connectors, and the other end of the air pipe is, and the air pipe is provided with a pressure sensor.

The beneficial effect of adopting the further scheme is that: utilize the air pump to provide power and accomplish the sampling work, the solenoid valve receives the solenoid valve signal, lets its action, opens corresponding gas circuit, and heating element provides and heats inspiratory trace explosive, makes its gasification, then passes through the spectrum appearance subassembly, detects.

Furthermore, a connector interface is arranged on the side wall of the spectrometer assembly, and the connector interface is respectively and electrically connected with the heating assembly, the spectrometer assembly and the electromagnetic valve assembly.

The beneficial effect of adopting the further scheme is that: the power supply to the required electrical appliance component is convenient, the use is convenient, and the safety is high.

Drawings

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

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is a top view of FIG. 1;

FIG. 5 is a side view of FIG. 1;

FIG. 6 is a schematic view of a heating assembly;

FIG. 7 is a top view of FIG. 6;

FIG. 8 is a cross-sectional view B-B of FIG. 7;

FIG. 9 is a cross-sectional view of the air path splitter plate;

FIG. 10 is a schematic diagram of the spectrometer assembly;

FIG. 11 is a front view of FIG. 10;

FIG. 12 is a cross-sectional view C-C of FIG. 11;

FIG. 13 is a cross-sectional view D-D of FIG. 11;

FIG. 14 is a side view of FIG. 10;

FIG. 15 is a schematic structural view of a tube replacement assembly;

FIG. 16 is a cross-sectional view of FIG. 15;

FIG. 17 is a schematic structural view of the connecting rod assembly;

FIG. 18 is a front view of FIG. 17;

FIG. 19 is a cross-sectional view of FIG. 18;

FIG. 20 is a left side elevational view of the solenoid operated valve assembly;

FIG. 21 is a cross-sectional view E-E of FIG. 20;

FIG. 22 is a cross-sectional view F-F of FIG. 20;

FIG. 23 is a sectional view taken along line G-G of FIG. 20;

FIG. 24 is a top view of the solenoid operated valve assembly;

FIG. 25 is a sectional view taken at H-H of FIG. 24;

in the drawings, the components represented by the respective reference numerals are listed below:

1. a base plate; 2. a heating assembly; 21. a gas path flow distribution plate; 22. an air inlet nozzle; 23. a heating plate; a support plate; 24. a first temperature sensor; 25. a heat insulation plate; 26 a first O-ring; 27. a first spectrometer cover; 3. a spectrometer component; 31. a spectrometer cavity; 32. a limiting groove; 33. a spectrometer lamp panel; 34. a second temperature sensor; 35. a second limiting hole; 36. a first limit hole; 37. a screw post; 4. a tube replacement assembly; 41. replacing the tube shell; 42. a second spectrometer sleeve; 43. a glass tube stopper 43; 44. screwing the screw by hand; 45. a second O-ring; 5. a solenoid valve assembly; 51. a solenoid valve housing; 52. a gas path cover; 53. an electromagnetic valve; 54. an electromagnetic valve nozzle; 55. an electromagnetic valve cover; 56. a pneumatic joint; 57. an air pump; 58. a pressure sensor; 59. a clamping hole; 6. a connecting rod assembly; 61. a connecting rod; 62. a pin; 63. a return spring; 64. a screw; 65. a knob; 66. a connecting rod cover; 7. a connector interface; 8. and (6) a sensitive device.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.

Because the sensitive device needs to be installed in the spectrometer module, and the single sensitive device 8 has a life cycle, the aim of prolonging the maintenance cycle is achieved in order to increase the replacement cycle. The sensitive devices 8 need to be replaced every time, so that the sensitive devices 8 with a plurality of channels can be used independently or in combination, and the detection precision and the working efficiency are improved.

Example 1

As shown in fig. 1 to 6, the present embodiment provides an automatic replacement sensitive device module, including: bottom plate 1, be equipped with the spectrum appearance subassembly 3 that is used for detecting sensitive device through the fix with screw on bottom plate 1, one side of spectrum appearance subassembly 3 is equipped with heating element 2 that is used for heating trace explosive, be equipped with the first passageway of settling that link up spectrum appearance subassembly 3 in the spectrum appearance subassembly 3, the relative opposite side of spectrum appearance subassembly 3 is equipped with solenoid valve assembly 5 that is used for controlling the gas circuit, be connected through trading pipe subassembly 4 between spectrum appearance subassembly 3 and the solenoid valve assembly 5, be equipped with a plurality of sensitive devices 8 on the pipe subassembly 4 of trading, a plurality of sensitive devices 8 stretch into in the first passageway of settling, all be equipped with the link assembly 6 that is used for rotating solenoid valve assembly 5 between the both sides that spectrum appearance subassembly 3 and solenoid valve assembly 5 correspond respectively.

Heating element 2 heats the gasification with trace explosive, then utilize solenoid valve subassembly 5 to inhale in the sensitive device 8, detect through spectrum appearance subassembly 3, link assembly 6 set up and conveniently change the sensitive device module, this module is applied to the floodgate machine, on-vehicle, different fields such as box, a plurality of solenoid valve subassembly 5 are used for switching different gas circuits, and every gas circuit can make up or independent utility, the problem of the consumptive material of frequent change is solved, it changes sensitive device to be equivalent to the transmission, more reliable and stable, make things convenient for the wire to arrange, reduce the damage that the motion position led to the fact the wire, moreover, the steam generator is compact in structure, and the occupation space is few.

Preferably, in this embodiment, the heating assembly 2 includes an air path splitter plate 21, an air inlet nozzle 22, a heating plate 23, a heat insulation plate 25, a first O-ring 26 and a first spectrometer sleeve 27, one side of the air path splitter plate 21 is fixedly disposed on the sidewall of the spectrometer assembly 3 through the heat insulation plate 25, the other side of the air path splitter plate 21 is provided with the air inlet nozzle 22, one end of the air inlet nozzle 22 extends into the air path splitter plate 21, a plurality of first air channels are disposed in the air path splitter plate 21, the air inlet nozzle 22 is communicated with the plurality of first air channels, a placement groove for placing the heating plate 23 is disposed on a contact surface of the air path splitter plate 21 and the heat insulation plate 25, a plurality of sensing devices 8 respectively extend into the air path splitter plate 21, the plurality of sensing devices 8 are respectively communicated with the corresponding plurality of first air channels, one end of the plurality of sensing devices 8 extending into the air path splitter plate 21 is sleeved with the first spectrometer sleeve 27, a first O-ring 26 tightly fitted with the first spectrometer sleeve 27 is disposed in the plurality of first air channels, as shown in fig. 7-14, trace explosives are vaporized by the heating plate 23, and the electromagnetic valve assembly 5 is used for sampling steam, and the steam enters the corresponding sensitive assemblies 8 through the first air passing channels respectively for detection.

Preferably, in this embodiment, the gas path flow distribution plate 21 is provided with a first temperature sensor 24 for detecting the heating temperature of the heating sheet 23, so as to detect the temperature of the heating sheet 23, ensure that the reaction can be smoothly performed, and improve the accuracy of the detection data.

Preferably, in this implementation, the spectrometer assembly 3 includes a spectrometer cavity 31 and a spectrometer lamp panel 33, the spectrometer lamp panel 33 is fixedly arranged at the inner top of the spectrometer cavity 31, a first installation channel penetrating through the spectrometer cavity 31 is arranged in the spectrometer cavity 31, trace explosives are sucked into the sensitive device to perform quenching reaction, a sensor circuit board on the spectrometer lamp panel 33 detects, signals are transmitted to the circuit board, and acousto-optic alarm is performed.

Preferably, in this implementation, be equipped with the second temperature sensor 34 that is used for detecting the temperature in the first passageway of settling, to the temperature real-time detection that takes place to send, be convenient for adjust as required, improve the precision of data.

Preferably, in this embodiment, the connecting rod assembly 6 includes a connecting rod 61, a pin 62, a screw 64, a knob 65, a connecting rod cover 66 and a return spring 63, one end of the connecting rod 61 is fixedly connected to the electromagnetic valve assembly 5, the other end is rotatably connected to the sidewall of the spectrometer assembly 3 through the pin 62, L-shaped limiting grooves 32 are disposed on two opposite sides of the spectrometer assembly 3, the connecting rod cover 66 is fixedly disposed on one side of the connecting rod 61 away from the spectrometer assembly 3, a threaded hole is disposed in the connecting rod cover 66, a through hole is disposed in the connecting rod 61, one end of the screw 64 sequentially passes through the threaded hole in the connecting rod cover 66 and the through hole in the connecting rod 61 and then is slidably connected to the limiting groove 32, one end of the connecting rod 61 extending into the limiting groove 32 is sleeved with the return spring 63, a limiting portion is disposed on the connecting rod 61, the diameter of the threaded, the limiting groove 32 comprises a horizontal section and an arc-shaped section, a first limiting hole 36 used for being matched with the screw 64 to limit the position of the solenoid valve assembly 5 is formed in the head end of the horizontal section, a second limiting hole 35 used for being matched with the screw 64 to limit the position of the solenoid valve assembly 5 is formed in the tail end of the arc-shaped section, and the other end of the screw 64 is fixedly connected with a knob 65, as shown in fig. 20-25, when the screw 64 is inserted into the first limiting hole 35, the device is in a use state at the moment, when the sensitive device 8 needs to be detached, the knob 65 is pulled by hands, the screw 64 is separated from a threaded hole, the connecting rod 61 is pushed to slide in the limiting groove 32, so that the solenoid valve assembly 5 rotates, the space of the pipe drawing assembly 6 is made to slide to the top of the limiting groove 32, the screw 64 is inserted into the second limiting hole.

Preferably, in this embodiment, the tube changing assembly 4 includes a tube changing housing 41, a second spectrometer sleeve 42, a glass tube limiting block 43, a hand screw 44 and a second O-ring 45, a plurality of second installation channels penetrating the tube changing housing 41 are provided in the tube changing housing 41, a plurality of glass tube limiting blocks 43 are provided at one side of the tube changing housing 41 close to the spectrometer assembly 3, a plurality of sensing devices 8 are provided in the plurality of second installation channels, the plurality of sensing devices 8 and the plurality of glass tube limiting blocks 43 are arranged in a one-to-one correspondence, each sensing device 8 extends into the corresponding second installation channel and abuts against the corresponding glass tube limiting block 43, a second O-ring 45 is provided in the second installation channel, a second spectrometer sleeve 42 tightly fitted with the second O-ring 45 is sleeved on the sensing device 8, a screw column 37 is provided in the spectrometer assembly 3, one end of the hand screw 44 extends into the screw column 37 after passing through the tube changing housing 41, the glass tube limiting block 43 is provided with a plurality of air guide holes for communicating with the electromagnetic valve assembly 5, the glass tube limiting block 43 is clamped with the side wall of the electromagnetic valve assembly 5, as shown in fig. 15-19, the tube replacing assembly 4 is fixed and communicated with the air passage, the tube replacing assembly 4 is fixed only by screwing the hand screw 44 with hands, and the sensitive device 8 can be dismounted only by loosening the hand screw 44 in the opposite direction, so that the operation is convenient.

Preferably, in this embodiment, the electromagnetic valve assembly 5 includes an electromagnetic valve housing 51, an air path cover 52, an electromagnetic valve 53, an electromagnetic valve nozzle 54, an electromagnetic valve cover 55, a pneumatic connector 56, and an air pump 57, one end of the electromagnetic valve housing 51 is provided with a plurality of fastening holes 59 that are matched with the sealing ring on the glass tube limiting block 43, a plurality of electromagnetic valves 53 are disposed in the electromagnetic valve housing 51, the top and the bottom of each electromagnetic valve 53 are provided with an electromagnetic valve nozzle 54, the electromagnetic valve nozzle 54 at the bottom of each electromagnetic valve 53 is communicated with the corresponding air guide hole, the air path cover 52 is disposed above the electromagnetic valve 53, a plurality of second air passages are disposed in the air path cover 52, the electromagnetic valve nozzle 54 at the top of each electromagnetic valve 53 is communicated with the inlet of the corresponding second air passage, the outlets of the plurality of second air passages are communicated and then connected with one end of the air pipe through the pneumatic, the air pipe is provided with a pressure sensor 58, as shown in fig. 20-25, the air pump 57 is used for providing power to complete sampling, the electromagnetic valve 53 receives electromagnetic valve signals to actuate, a corresponding air passage is opened, the heating assembly 2 is used for heating the sucked trace explosive to gasify the trace explosive, and then the trace explosive is detected through the spectrometer assembly 3.

Preferably, in this embodiment, a connector interface 7 is disposed on a side wall of the spectrometer assembly 3, and the connector interface 7 is electrically connected to the heating assembly 2, the spectrometer assembly 3, and the solenoid valve assembly 5, respectively, to supply power to the lamp of the spectrometer lamp panel 33, various sensor connections, the heating plate 23, and the air pump 57.

The invention can realize the functions of communication control, power supply and the like with the outside through the connector interface 7; the air pump 57 provides negative pressure to suck trace explosives into the air path, the air path mainly comprises an air inlet nozzle 22, an air path splitter plate 21, a sensitive device 8, electromagnetic valves 53 and the air pump 57, the air path is divided into four parts from the air inlet nozzle 22, the four parts correspond to 4 sensitive devices 8, each sensitive device 8 corresponds to one electromagnetic valve 53, the electromagnetic valves 53 are in a closed state before action, when one of the four parts is opened, a signal is sent to the corresponding electromagnetic valve 53 to enable the corresponding air path to be opened, a pressure sensor 58 is further connected between the electromagnetic valve 53 and the air pump 57 in parallel, the spectrometer assembly 3 detects wavelength information of light generated by the reaction of the trace explosives in the sensitive devices 8, specifically, a lamp plate 24 of the spectrometer is struck on the sensitive devices, the inner walls of the trace explosives adsorbed by the sensitive devices 8 generate quenching reaction, the wavelength information after the reaction is transmitted to a host through the, the detection precision and the working efficiency are improved.

And replacing the sensitive device:

1. the knob 65 is pulled open and the screw 64 is screwed on the link cover 66 of the link 61 to be fixed;

2. the electromagnetic valve component 5 is pulled to drive the connecting rod 61 to move;

3. rotating the electromagnetic valve component 5 to drive the connecting rod 61 to move;

4. rotating the electromagnetic valve component 5 to drive the connecting rod 61 to move, and inserting the screw 64 into the second limiting hole 35;

5. rotating the thumb screw 44, loosening the thumb screw 44;

6. the tube replacing component 4 is pulled out;

7. the sensitive device 8 is removed.

In the description of the present invention, it is to be understood that the terms "center", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "peripheral side", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and simplicity of description, and do not indicate or imply that the system or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An auto-change sensitive device module comprising:

a bottom plate (1), a spectrometer component (3) for detecting a sensitive device is fixedly arranged on the bottom plate (1), a heating component (2) for heating trace explosives is arranged on one side of the spectrometer component (3), a first arranging channel which runs through the spectrometer component (3) is arranged in the spectrometer component (3), the other side of the spectrometer component (3) opposite to the other side is provided with an electromagnetic valve component (5) for controlling an air passage, the spectrometer component (3) is connected with the electromagnetic valve component (5) through a tube replacing component (4), a plurality of sensitive devices (8) are arranged on the tube replacing component (4), the sensitive devices (8) extend into the first arranging channel, and connecting rod assemblies (6) used for rotating the electromagnetic valve assemblies (5) are arranged between two sides of the spectrometer assembly (3) and two sides corresponding to the electromagnetic valve assemblies (5).

2. The module of claim 1, wherein the heating assembly (2) comprises an air path splitter plate (21), an air inlet nozzle (22), a heating plate (23), a heat insulation plate (25), a first O-ring (26) and a first spectrometer sleeve (27), one side of the air path splitter plate (21) is fixedly arranged on the side wall of the spectrometer assembly (3) through the heat insulation plate (25), the air inlet nozzle (22) is arranged on the other side of the air path splitter plate (21), one end of the air inlet nozzle (22) extends into the air path splitter plate (21), a plurality of first air channels are arranged in the air path splitter plate (21), the air inlet nozzle (22) is communicated with the plurality of first air channels, and a placement groove for placing the heating plate (23) is arranged on the contact surface of the air path splitter plate (21) and the heat insulation plate (25), it is a plurality of sensitive device (8) all stretch into respectively in gas circuit flow distribution plate (21), it is a plurality of sensitive device (8) respectively with correspond a plurality of first gas channel intercommunication of walking is a plurality of sensitive device (8) stretch into a gas circuit flow distribution plate (21) pot head is equipped with first spectrum appearance cover (27), and is a plurality of first walk in the gas channel be equipped with first spectrum appearance cover (27) closely cooperate first O type circle (26).

3. The automatic sensor device replacement module according to claim 2, wherein the air path splitter plate (21) is provided with a first temperature sensor (24) for detecting the heating temperature of the heating sheet (23).

4. The module of claim 1, wherein the spectrometer assembly (3) comprises a spectrometer cavity (31) and a spectrometer lamp panel (33), the spectrometer lamp panel (33) is fixedly disposed at the top of the spectrometer cavity (31), and the first installation passage penetrating through the spectrometer cavity (31) is disposed in the spectrometer cavity (31).

5. The automatic change sensor module according to claim 4, wherein a second temperature sensor (34) for detecting temperature is provided in the first seating channel.

6. The automatic sensor replacement module according to claim 4, wherein the connecting rod assembly (6) comprises a connecting rod (61), a pin (62), a return spring (63), a screw rod (64), a knob (65) and a connecting rod cover (66), one end of the connecting rod (61) is fixedly connected with the electromagnetic valve assembly (5), the other end of the connecting rod is rotatably connected to the side wall of the spectrometer assembly (3) through the pin (62), L-shaped limiting grooves (32) are formed in two opposite sides of the spectrometer assembly (3), the connecting rod cover (66) is fixedly arranged on one side of the connecting rod (61) far away from the spectrometer assembly (3), threaded holes are formed in the connecting rod cover (66), a through hole is formed in the connecting rod (61), one end of the screw rod (64) sequentially penetrates through the threaded holes in the connecting rod cover (66) and the through hole in the connecting rod (61) and then is slidably connected with the limiting groove (32), connecting rod (61) stretches into a pot head of spacing groove (32) is equipped with reset spring (63), be equipped with spacing portion on connecting rod (61), the diameter of screw hole is less than the diameter of through-hole, the one end butt of reset spring (63) is in the terminal surface of connecting rod cap (66), other end butt are in spacing portion, spacing groove (32) are including horizontal segment and segmental arc, and the head end of horizontal segment is equipped with and is used for the cooperation screw rod (64) restriction first spacing hole (36) of solenoid valve subassembly (5) position, the end of segmental arc is equipped with and is used for the cooperation screw rod (64) restriction spacing hole (35) of second of solenoid valve subassembly (5) position, the other end fixed connection of screw rod (64) knob (65).

7. The module of claim 1, wherein the tube changing assembly (4) comprises a tube changing housing (41), a second spectrometer sleeve (42), a glass tube stopper (43), a hand screw (44) and a second O-ring (45), a plurality of second installation channels penetrating through the tube changing housing (41) are arranged in the tube changing housing (41), a plurality of glass tube stoppers (43) are arranged on one side of the tube changing housing (41) close to the spectrometer assembly (3), the plurality of second installation channels are provided with the sensing devices (8), the plurality of sensing devices (8) and the plurality of glass tube stoppers (43) are arranged in a one-to-one correspondence manner, each sensing device (8) extends into the corresponding second installation channel and abuts against the corresponding glass tube stopper (43), be equipped with in the passageway is settled to the second O type circle (45), the cover is equipped with on sensitive device (8) with second O type circle (45) closely cooperates second spectrum appearance cover (42), be equipped with screw post (37) in spectrum appearance subassembly (3), the one end of hand screw (44) is passed stretch into behind the tube changing casing (41) in screw post (37), be equipped with on glass pipe stopper (43) be used for with a plurality of air guide holes of solenoid valve assembly (5) intercommunication, glass pipe stopper (43) with the lateral wall joint of solenoid valve assembly (5) is in the same place.

8. The automatic sensor replacement module according to claim 7, wherein the solenoid valve assembly (5) comprises a solenoid valve housing (51), an air channel cover (52), a solenoid valve (53), a solenoid valve nozzle (54), a solenoid valve cover (55), a pneumatic connector (56) and an air pump (57), one end of the solenoid valve housing (51) is provided with a plurality of clamping holes (59) matched with the sealing ring on the glass tube stopper (43), the solenoid valve housing (51) is provided with a plurality of solenoid valves (53), the top and the bottom of each solenoid valve (53) are provided with the solenoid valve nozzle (54), the solenoid valve nozzle (54) at the bottom of each solenoid valve (53) is communicated with the corresponding air guide hole, the air channel cover (52) is arranged above the solenoid valve (53), and a plurality of second air channels are arranged in the air channel cover (52), every the top of solenoid valve (53) solenoid valve air cock (54) intercommunication corresponds the import of gas passageway is walked to the second, and is a plurality of pass through behind the export intercommunication of gas passageway is walked to the second pneumatic connector (56) tracheal one end is connected, tracheal other end is connected the output of air pump (57), install pressure sensor (58) on the trachea.

9. The module according to any of claims 1-8, wherein the spectrometer module (3) has a connector interface (7) on a sidewall thereof, and the connector interface (7) is electrically connected to the heating module (2), the spectrometer module (3) and the solenoid valve module (5), respectively.