CN115504069A

CN115504069A - A categorised storage tank of on-spot sample for conflagration investigation

Info

Publication number: CN115504069A
Application number: CN202211227346.6A
Authority: CN
Inventors: 秦令辉; 郑逢庆; 刘斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-10-09
Filing date: 2022-10-09
Publication date: 2022-12-23

Abstract

The invention discloses a field sampling and classifying storage box for fire investigation, which comprises an automatic opening and closing anti-interaction multi-region gas collecting mechanism, a powder and liquid mixing and classifying storage box and a solid classifying storage box, wherein the automatic opening and closing anti-interaction multi-region gas collecting mechanism is fixedly arranged on the side wall of the solid classifying storage box, and the powder and liquid mixing and classifying storage box is fixedly arranged on the upper wall of the solid classifying storage box. The invention belongs to the technical field of fire investigation, and particularly provides a field sampling and classifying storage tank for fire investigation, which stores gas on a fire scene in a conical geometric structure and elastic force automatic locking mode, independently collects gas in multiple regions in an asymmetric gas path switching mode, simplifies equipment structure, improves gas regional collection quality, orderly stores samples in an array arrangement and one-way input mode, extracts the samples by virtue of a continuous in-place effect generated by elastic force, and ensures the storage orderliness of powdery and liquid samples.

Description

A categorised storage tank of on-spot sample for conflagration investigation

Technical Field

The invention belongs to the technical field of fire investigation, and particularly relates to a field sampling and classifying storage tank for fire investigation.

Background

Fire investigation plays an important role in fire cause analysis and fire qualification, and the fire investigation needs to effectively collect, classify and arrange the on-site material evidence and effectively protect the collected evidence, thereby facilitating the fire analysis.

At present, when conflagration investigation sample and evidence are collected, adopt the manual work to pack into a bag to the scene material evidence for safekeeping and adopt ordinary case and bag to store more, the sample of gathering because of the manual work is mostly solid sample, be difficult to carry out effective sampling to the gas and the liquid on scene of fire, the sampling lacks the comprehensiveness, can't carry out investigation analysis to the conflagration from the multidimension degree, and the sample storage is comparatively chaotic, it is impaired to make the sample collide with each other easily, and need constantly open and shut ordinary case and bag and store the sample, the sampling process is comparatively loaded down with trivial details.

Lack among the prior art to the on-spot full aspect sample of conflagration investigation and classified storage equipment, can realize carrying out the categorised collection storage to gaseous state, liquid, likepowder and the solid material evidence at conflagration scene, and can carry out the technological effect of reliable protection to various material evidences, can reduce the complex operation degree, the promotion sampling efficiency of sampling in-process simultaneously.

Disclosure of Invention

According to the technical problems, the invention provides a field sampling and classifying storage tank for fire investigation, aiming at the technical problems that the field fire sample collection mainly depends on manual collection and field gas, powder and liquid samples are difficult to be effectively collected, the field sampling and classifying storage tank is provided with an automatic opening and closing anti-interaction type multi-region gas collection mechanism and a powder and liquid mixing and classifying storage tank, the gas in the field fire is stored in a conical geometric structure and elastic automatic locking mode, the gas in multiple regions is independently collected in an asymmetric gas path switching mode, the gas collection efficiency is ensured, the equipment structure is simplified, the quality of gas regional collection is improved, the samples are orderly stored in an array arrangement and one-way input mode, the samples are extracted by virtue of a continuous in-place effect generated by elasticity, the relative independence of the powder and liquid samples in the storage process is ensured, and the possibility of confusion of the samples in the storage and extraction processes can be effectively prevented.

The technical scheme adopted by the invention is as follows: the scheme provides a categorised storage tank of on-spot sample for fire investigation, include from opening and close and prevent interactive multizone gas acquisition mechanism, powder liquid mixes categorised bin and solid-state classification bin, from opening and close and prevent interactive multizone gas acquisition mechanism and fix and locate the solid-state classification bin lateral wall, powder liquid mixes categorised bin fixed and locates the solid-state classification bin upper wall, from opening and close and prevent interactive multizone gas acquisition mechanism and include that elastic pressure is from opening and close the storage tank, gas circuit switching module and pneumatic component, elastic pressure is from opening and close the storage tank array distribution and fixing and locating the solid-state classification bin lateral wall, gas circuit switching module is fixed and locating the solid-state classification bin lateral wall, gas circuit switching module locates elastic pressure and is from opening and close the storage tank below, gas circuit switching module lateral wall is fixed to be located the gas circuit, elastic pressure is from opening and closing the storage tank, gas circuit switching module and pneumatic component are through-connected in proper order.

Furthermore, elastic air pressure penetrates through and is fixedly provided with an inverted cone-shaped exhaust pipe from the upper end of the open-close storage tank, elastic air pressure penetrates through and is fixedly provided with a cone-shaped air inlet pipe from the lower end of the open-close storage tank, an exhaust plugging spring is fixedly arranged on the lower edge of the inner wall of the inverted cone-shaped exhaust pipe, an exhaust plugging ball is arranged on the inner wall of the inverted cone-shaped exhaust pipe, the upper end of the exhaust plugging spring is fixedly connected with the lower wall of the exhaust plugging ball, an air inlet plugging spring is fixedly arranged on the lower edge of the inner wall of the cone-shaped air inlet pipe, an air inlet plugging ball is arranged on the inner wall of the cone-shaped air inlet pipe, and the upper end of the air inlet plugging spring is fixedly connected with the lower wall of the air inlet plugging ball.

Furthermore, residual air self-exhaust anti-interaction pipe heads are symmetrically distributed, fixedly penetrated and arranged on the lower edge of the side wall of the conical air inlet pipe, pressure blocking balls are arranged inside the residual air self-exhaust anti-interaction pipe heads, blocking ball anti-disengagement blocking strips are fixedly arranged at the end parts, close to the residual air self-exhaust anti-interaction pipe heads, of the residual air self-exhaust anti-interaction pipe heads respectively, and the inner clearance of the residual air self-exhaust anti-interaction pipe heads is in a conical shape; the end calibers of the mutual far away of the residual air self-discharging anti-interaction tube heads, the diameter of the pressure blocking ball and the end calibers of the mutual close of the residual air self-discharging anti-interaction tube heads are sequentially increased.

Further, the gas circuit switching subassembly includes that the gas circuit switches a section of thick bamboo and gas circuit switching motor, a gas circuit switches a section of thick bamboo and gas circuit switching motor is fixed respectively and locates solid-state classification bin lateral wall, the cyclic annular equidistant array of gas circuit switching section of thick bamboo circumference lateral wall distributes and runs through and is equipped with the gas circuit and switches the hole, toper intake pipe lower extreme switches the hole with the gas circuit respectively and passes through pipeline through connections, gas circuit switching section of thick bamboo inside wall rotates and is equipped with the gas circuit and switches the wheel, gas circuit switching wheel circumference outer wall and the slip of gas circuit switching section of thick bamboo circumference inner wall are sealed, gas circuit switching wheel and the coaxial fixed connection of gas circuit switching motor output, gas circuit switching wheel lateral wall is equipped with gas circuit switching groove.

Furthermore, the gas collection power assembly comprises a gas collection pump and a gas collection pipe, the gas collection pump is fixedly arranged on the side wall of the gas circuit switching cylinder, the gas collection pipe penetrates through and is fixedly arranged on the side wall of the gas circuit switching cylinder, and the gas collection pump penetrates through the middle of the gas collection pipe.

Further, the powder-liquid mixing classified storage box is internally provided with powder-liquid mixing separate storage bars in an array sliding mode, the side wall of each powder-liquid mixing separate storage bar is provided with a separate storage opening, the side wall of each powder-liquid mixing separate storage bar is provided with a one-way baffle in a rotating mode, the one-way baffles are symmetrically arranged on the side edge of the separate storage opening in a distributed mode, the end portion, far away from the separate storage opening, of each one-way baffle is fixedly provided with a baffle reset magnetic sheet, the inner wall of each powder-liquid mixing separate storage bar is provided with an arrangement baffle in a sliding mode, the side wall, far away from the separate storage opening, inside the powder-liquid mixing separate storage bar is fixedly provided with an arrangement spring, the end portion, close to the separate storage opening, of each arrangement spring is fixedly connected with the side wall of the arrangement baffle, the lower wall of each powder-liquid mixing separate storage bar is fixedly provided with an extraction electric push rod, the lower wall of each powder-liquid mixing separate storage bar is provided with an extraction power hole in a penetrating mode, the upper wall of each powder-liquid mixing separate storage bar is provided with a detection extraction hole, and the detection extraction hole, the extraction power hole and the extraction push rod are arranged on the same plumb line; the upper end surface of the electric extraction push rod and the bottom wall of the powder-liquid mixed storage bar are positioned on the same horizontal plane.

Further, a sampling pipe storage box is fixedly arranged on the outer side wall of the powder-liquid mixing and classifying storage box; the sampling tube is stored in the sampling tube storage box.

Furthermore, a storage guide rail is fixedly arranged on the inner wall array of the solid-state classification storage box, a storage opening is arranged on the side wall array of the solid-state classification storage box in a penetrating mode, drawing storage boxes are arranged in the solid-state classification storage box in an array sliding mode, and the drawing storage boxes are respectively arranged on the storage guide rail in a sliding mode; the drawing storage boxes respectively correspond to the storage openings.

Furthermore, storage tanks are arranged in the internal array of the drawing storage box, flexible shock-absorbing pads are respectively fixedly arranged on the side wall and the bottom wall of each storage tank, and wheel bodies are rotationally arranged on the lower wall array of the solid classification storage box; the flexible shock pad is covered with a plastic film.

Furthermore, the inner wall of the inverted cone-shaped exhaust pipe, the inner wall of the cone-shaped air inlet pipe, the outer wall of the exhaust plugging ball and the outer wall of the air inlet plugging ball are made of rubber materials respectively, so that the sealing and plugging effects when the exhaust plugging ball is in contact with the inner wall of the inverted cone-shaped exhaust pipe and when the air inlet plugging ball is in contact with the inner wall of the cone-shaped air inlet pipe are improved.

The invention with the structure has the following beneficial effects:

(1) The automatic opening and closing anti-interaction type multi-region gas collecting mechanism stores gas on a fire scene in a conical geometric structure and elastic automatic locking mode, and independently collects gas of multiple regions in an asymmetric gas path switching mode, so that the gas collecting efficiency is ensured, the equipment structure is simplified, and the gas regional collecting quality is improved;

(2) The powder-liquid mixed classified storage tank stores samples orderly by means of array arrangement and unidirectional input, and extracts the samples by means of continuous in-place effect generated by elasticity, so that the relative independence of the powder and liquid samples in the storage process is guaranteed, and the possibility of confusion of the samples in the storage and extraction processes can be effectively prevented;

(3) The exhaust plugging ball and the air inlet plugging ball enable the upper end and the lower end of the elastic air pressure self-opening and self-closing storage tank to be in a closed state under the state without external force action, and enable the upper end and the lower end of the elastic air pressure self-opening and self-closing storage tank to be in an open state under the action of air pressure, and the arrangement enables the gas collection process to be automated through simple mechanical parts, does not need the cooperation of sampling personnel, and improves the intelligent degree of gas sampling;

(4) The arrangement mode that the inner wall of the inverted cone-shaped exhaust pipe, the inner wall of the cone-shaped air inlet pipe, the outer wall of the exhaust plugging ball and the outer wall of the air inlet plugging ball are made of rubber materials respectively improves the airtight plugging effect when the exhaust plugging ball is in contact with the inner wall of the inverted cone-shaped exhaust pipe and when the air inlet plugging ball is in contact with the inner wall of the cone-shaped air inlet pipe;

(5) The residual gas self-exhaust interaction-preventing pipe head utilizes a conical inner diameter design and a built-in movable pressure blocking ball to ventilate and exhaust residual gas in the gas path switching cylinder after single gas collection, so that gas samples in different areas are prevented from generating interaction pollution;

(6) The gas path switching cylinder switches gas paths through a gas path switching wheel provided with a gas path switching groove, so that the equipment can automatically sample gas in different areas of a fire scene;

(7) The one-way baffle and the arrangement baffle are matched with each other, so that liquid and powder samples can be stored in order, and meanwhile, the samples are continuously extracted and detected one by means of the pushing and supplying actions of the extraction electric push rod and the arrangement spring one by one;

(8) The drawing storage box separates each solid sample by arranging a plurality of storage tanks, prevents mutual pollution and collision between the samples, and the flexible shock pad can prevent the impact effect of equipment on the samples in the transfer process, thereby ensuring the complete effectiveness of the samples.

Drawings

FIG. 1 is a schematic view of an on-site sampling and sorting tank for fire investigation according to the present invention;

FIG. 2 is a schematic structural diagram of an automatic on-off anti-interaction multi-region gas collection mechanism according to the present invention;

FIG. 3 is a side sectional view of the elastic pneumatic automatic open/close storage tank according to the present invention;

FIG. 4 is a partial enlarged view of portion B of FIG. 3;

FIG. 5 is a diagram of the present invention for automatically exhausting residual air the structure schematic diagram of the anti-interaction tube head;

FIG. 6 is a schematic cross-sectional view of the gas path switching assembly according to the present invention;

FIG. 7 is a schematic structural view of a powder-liquid mixing and classifying storage box according to the present invention;

FIG. 8 is an enlarged view of a portion C of FIG. 7;

FIG. 9 is a side cross-sectional view of a powder-liquid mixing dispenser according to the present invention;

FIG. 10 is an enlarged view of a portion A of FIG. 1;

fig. 11 is a schematic structural view of the drawer storage box according to the present invention.

Wherein, 1, prevent interactive multizone gas acquisition mechanism from opening and close, 11, elasticity atmospheric pressure is from opening and close the storage tank, 111, the back taper blast pipe, 1111, exhaust shutoff spring, 1112, exhaust shutoff ball, 112, the toper intake pipe, 1121, the shutoff spring that admits air, 1122, admit air shutoff ball, 1123, surplus gas is from exhausting and preventing mutual tube head, 1124, the pressure shutoff ball, 1125, the shutoff ball anticreep stop strip, 12, the gas circuit switching assembly, 121, the gas circuit switching section of thick bamboo, 1211, the gas circuit switching hole, 1212, the gas circuit switching wheel, 1213, the gas circuit switching groove, 122, the gas circuit switching motor, 13, gas collection power component, 131, gas collection pump, 132, gas collection pipe, 2, powder-liquid mixing and classifying storage tank, 21, powder-liquid mixing and storing strip, 211, storing opening, 212, one-way baffle, 2121, baffle reset magnetic sheet, 213, arrangement baffle, 214, arrangement spring, 215, extraction electric push rod, 216, extraction power hole, 217, detection extraction hole, 22, sampling pipe storage box, 3, solid classifying storage tank, 31, storage guide rail, 32, storage opening, 33, drawing storage box, 331, storage tank, 3311, flexible shock pad, 34, wheel body.

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

Example (b):

referring to fig. 1 and 2, in the present embodiment, an on-site sampling and classifying storage tank for fire investigation includes an automatic open/close anti-interaction multi-region gas collecting mechanism 1, a powder/liquid mixing and classifying storage tank 2 and a solid classifying storage tank 3, the automatic open/close anti-interaction multi-region gas collecting mechanism 1 is fixedly disposed on a sidewall of the solid classifying storage tank 3, the powder/liquid mixing and classifying storage tank 2 is fixedly disposed on an upper wall of the solid classifying storage tank 3, the automatic open/close anti-interaction multi-region gas collecting mechanism 1 includes an elastic air pressure automatic open/close storage tank 11, an air channel switching component 12 and a pneumatic collecting component 13, the elastic air pressure automatic open/close storage tank 11 is fixedly disposed on the sidewall of the solid classifying storage tank 3 in an array distribution manner, the air channel switching component 12 is fixedly disposed on the sidewall of the solid classifying storage tank 3, the air channel switching component 12 is disposed below the elastic air pressure automatic open/close storage tank 11, the pneumatic collecting component 13 is fixedly disposed on a sidewall of the air channel switching component 12, the elastic air pressure automatic open/close storage tank 11, the air channel switching component 12 and the pneumatic collecting component 13 are sequentially connected in a through manner.

Referring to fig. 3 and 4, in the present embodiment, the elastic air pressure penetrates through and is fixedly provided with the inverted conical exhaust pipe 111 from the upper end of the open/close storage tank 11, the elastic air pressure penetrates through and is fixedly provided with the conical intake pipe 112 from the lower end of the open/close storage tank 11, the exhaust blocking spring 1111 is fixedly provided at the lower edge of the inner wall of the inverted conical exhaust pipe 111, the exhaust blocking ball 1112 is provided at the inner wall of the inverted conical exhaust pipe 111, the upper end of the exhaust blocking spring 1111 is fixedly connected with the lower wall of the exhaust blocking ball 1112, the intake blocking spring 1121 is fixedly provided at the lower edge of the inner wall of the conical intake pipe 112, the intake blocking ball 1122 is provided at the inner wall of the conical intake pipe 112, and the upper end of the intake blocking spring 1121 is fixedly connected with the lower wall of the intake blocking ball 1122.

Referring to fig. 4 and 5, in the present embodiment, the bottom edge of the sidewall of the conical air inlet pipe 112 is symmetrically distributed, penetrates and is fixedly provided with the residual air self-discharging and anti-interacting pipe head 1123, a pressure blocking ball 1124 is disposed inside the residual air self-discharging and anti-interacting pipe head 1123, the end portions of the residual air self-discharging and anti-interacting pipe head 1123, which are close to each other, are respectively and fixedly provided with a blocking ball anti-falling blocking strip 1125, and the internal clearance of the residual air self-discharging and anti-interacting pipe head 1123 is set to be conical; the end calibers of the mutual far away end parts of the residual air self-exhaust anti-interaction pipe heads 1123, the diameter of the pressure blocking ball 1124 and the end calibers of the mutual close end parts of the residual air self-exhaust anti-interaction pipe heads 1123 are increased in sequence.

Referring to fig. 6, the air path switching assembly 12 in this embodiment includes an air path switching tube 121 and an air path switching motor 122, the air path switching tube 121 and the air path switching motor 122 are respectively and fixedly disposed on the sidewall of the solid-state classification storage box 3, air path switching holes 1211 are distributed in the circumferential sidewall of the air path switching tube 121 at equal intervals and penetrate through the circumferential sidewall, the lower end of the tapered air inlet tube 112 is respectively and penetratingly connected to the air path switching holes 1211 through a pipeline, an air path switching wheel 1212 is rotatably disposed on the inner sidewall of the air path switching tube 121, the circumferential outer wall of the air path switching wheel 1212 is slidably and closely attached to the circumferential inner wall of the air path switching tube 121, the output ends of the air path switching wheel 1212 and the air path switching motor 122 are coaxially and fixedly connected, and an air path switching groove 1213 is disposed on the sidewall of the air path switching wheel 1212.

Referring to fig. 2, the gas collecting power assembly 13 in the present embodiment includes a gas collecting pump 131 and a gas collecting pipe 132, the gas collecting pump 131 is fixedly disposed on the side wall of the gas path switching cylinder 121, the gas collecting pipe 132 is fixedly disposed on the side wall of the gas path switching cylinder 121 in a penetrating manner, and the gas collecting pump 131 is disposed in the middle of the gas collecting pipe 132 in a penetrating manner.

Referring to fig. 7-9, in the present embodiment, the powder-liquid mixing classification storage tank 2 is internally provided with a powder-liquid mixing storage bar 21 in an array manner, a storage opening 211 is formed in a side wall of the powder-liquid mixing storage bar 21, a one-way baffle 212 is rotatably arranged on a side wall of the powder-liquid mixing storage bar 21, the one-way baffle 212 is symmetrically arranged at a side edge of the storage opening 211, a baffle reset magnet 2121 is fixedly arranged at an end portion of the one-way baffle 212 far from the storage opening 211, an arrangement baffle 213 is slidably arranged on an inner wall of the powder-liquid mixing storage bar 21, an arrangement spring 214 is fixedly arranged on a side wall of the powder-liquid mixing storage bar 21 far from the storage opening 211, an end portion of the arrangement spring 214 close to the storage opening 211 is fixedly connected with a side wall of the arrangement baffle 213, an extraction electric push rod 215 is fixedly arranged on a lower wall of the powder-liquid mixing storage bar 21, an extraction power hole 216 is arranged on a lower wall of the powder-liquid mixing storage bar 21, an upper end of the extraction electric push rod 215 is arranged inside the extraction power hole 216, an upper wall of the powder-liquid mixing storage bar 21 is arranged on a detection extraction hole 217, an upper vertical push rod 216 is arranged on the same vertical push rod; the upper end surface of the electric push rod 215 and the inner bottom wall of the powder-liquid mixing and depositing strip 21 are at the same horizontal plane.

Referring to fig. 7, a sampling tube storage box 22 is fixedly disposed on the outer sidewall of the powder-liquid mixing and classifying storage box 2 in the present embodiment; the sample tube magazine 22 stores sample tubes inside.

Referring to fig. 10, in the present embodiment, the storage rails 31 are fixedly disposed on the inner wall array of the solid-state classification storage box 3, the storage openings 32 are disposed through the side wall array of the solid-state classification storage box 3, the pull-out storage boxes 33 are slidably disposed in the solid-state classification storage box 3, and the pull-out storage boxes 33 are respectively slidably disposed on the storage rails 31; the drawn storage boxes 33 correspond to the storage openings 32, respectively.

Referring to fig. 1 and 11, in the embodiment, the drawing storage box 33 is provided with storage tanks 331 in an array, flexible shock-absorbing pads 3311 are respectively fixed on the side wall and the bottom wall of the storage tanks 331, and the lower wall array of the solid-state classification storage box 3 is rotatably provided with wheels 34; the flexible cushion 3311 is covered with a plastic film.

In this embodiment, the inner wall of the inverted conical exhaust pipe 111, the inner wall of the conical intake pipe 112, the outer wall of the exhaust plugging ball 1112, and the outer wall of the intake plugging ball 1122 are made of rubber materials, respectively, so as to improve the sealing and plugging effect when the exhaust plugging ball 1112 contacts the inner wall of the inverted conical exhaust pipe 111 and the intake plugging ball 1122 contacts the inner wall of the conical intake pipe 112.

The specific implementation manner of this embodiment is: when sampling is carried out on a fire scene, the on-site sampling classified storage tank for fire investigation is transferred to the fire scene, aiming at toxic and harmful gases possibly diffused on the fire scene, multi-region gas sampling is carried out through the self-opening and self-closing anti-interaction multi-region gas collecting mechanism 1, in an initial state, the exhaust blocking ball 1112 is tightly attached to the inner wall of the inverted cone-shaped exhaust pipe 111 under the tension action of the exhaust blocking spring 1111, the air inlet blocking ball 1122 is tightly attached to the inner wall of the cone-shaped air inlet pipe 112 under the tension action of the air inlet blocking spring 1121, the pressure blocking ball 1124 is close to the blocking ball anti-falling blocking strip 1125 under the gravity action, at the moment, the inverted cone-shaped exhaust pipe 111 and the cone-shaped air inlet pipe 112 are in a closed state, the residual air self-exhaust anti-interaction pipe head 1123 is in an open state, when gas in a certain region of the fire scene is collected, the air collecting pump 131 runs, and the gas in the fire scene is conveyed to the interior of the air path switching cylinder 121 through the air collecting pipe 132, the air entering the air path switching cylinder 121 enters the air path switching hole 1211 corresponding to the air path switching groove 1213 under the guidance of the air path switching wheel 1212 and enters the tapered air inlet pipe 112 corresponding to the air path switching hole 1211, the pressure blocking ball 1124 moves in the direction away from the blocking ball anti-drop barrier 1125 under the action of air flow and air pressure and blocks the residual air self-discharge anti-interaction pipe head 1123, the air inlet blocking ball 1122 moves upward under the action of air pressure so as to make the tapered air inlet pipe 112 pass through, the air enters the elastic air pressure self-opening and closing storage tank 11 corresponding to the tapered air inlet pipe 112, the elastic air pressure increases from the internal air pressure of the self-opening and closing storage tank 11 so as to make the exhaust blocking ball 1112 move upward, the inverted conical exhaust pipe 111 passes through, the elastic air pressure is gradually exhausted from the air remaining in the self-opening and closing storage tank 11, when the elastic air pressure completes the exchange and storage from the internal air of the self-opening and closing storage tank 11, air collection pump 131 bring to rest, exhaust shutoff ball 1112, admit air shutoff ball 1122 and pressure blockage ball 1124 resume initial condition, gaseous collection storage is accomplished from opening and close storage tank 11 to first elasticity atmospheric pressure, this moment, a small amount of gas samples have been reserved to gas circuit switching section of thick bamboo 121 inside, and when equipment was sampled next region, the gas that this part was reserved can produce with next region gas and mix, thereby influence the representativeness of gas sample, therefore, it prevents mutual tube head 1123 from discharging to have set up the residual gas at toper intake pipe 112 lateral wall symmetry, when the non-sampling, the residual gas is prevented mutual tube head 1123 from discharging and is in the through state, can be with the inside gaseous discharge of reserving of gas circuit switching section of thick bamboo 121, avoid the gas sample of different regions to produce mutual pollution.

When collecting the powder and liquid samples in the fire scene, the sampling personnel take the sampling tube from the inside of the sampling tube storage box 22, adopt a cotton swab or a suction pipe to sample and store the samples into the sampling tube, then orderly store the sampling tube through the powder and liquid mixed storage strip 21, in the initial state, the extraction electric push rod 215 is in the contraction state, the upper end surface of the extraction electric push rod 215 and the bottom wall inside the powder and liquid mixed storage strip 21 are in the same horizontal plane, the arrangement baffle 213 is close to the storage opening 211 under the thrust action of the arrangement spring 214, the sampling personnel send the sampling tube into the storage opening 211 one by one, the sampling tube one-way baffle 212, so that the storage opening 211 is opened, the sampling tube generates extrusion acting force on the arrangement baffle 213, so that the arrangement baffle 213 slides towards the inside of the powder and liquid mixed storage strip 21, meanwhile, the arrangement baffle 213 generates extrusion force on the sampling tube under the action of the arrangement spring 214, after the sampling tube enters the powder and liquid mixed storage strip 21, the one-way baffle 212 pushes the reset baffle 2121 under the magnetic attraction effect, the sampling tube resets and the sampling tube, the sampling tube can be taken out one by the extraction baffle 213 and the sampling tube, the sampling tube can be taken out one by the sampling tube, the sampling tube can be taken out stably, the sampling tube can be taken out under the sampling tube, the sampling tube can be taken out stably under the sampling tube, and the sampling tube can be taken out under the sampling tube stably.

When gathering the solid sample, box 33 is stored to the pull carries out classified storage to the sample, and storage tank 331 separates each sample, prevents to pollute each other between the sample and collide with, and flexible shock pad 3311 can prevent the impact that equipment produced the sample in the transportation, has guaranteed the complete validity of sample.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a categorised storage tank of on-spot sample for fire investigation, includes from opening and close prevents interactive multi-region gas acquisition mechanism (1), mixed categorised bin (2) of powder liquid and solid-state classification bin (3), its characterized in that: from opening and close and prevent that interactive multi-region gas collection mechanism (1) is fixed locates solid-state classification bin (3) lateral wall, powder-liquid mixes categorised bin (2) and fixes and locates solid-state classification bin (3) upper wall, from opening and close and prevent interactive multi-region gas collection mechanism (1) including elasticity atmospheric pressure from opening and close storage tank (11), gas circuit switching module (12) and collection pneumatic assembly (13), elasticity atmospheric pressure is fixed and locates solid-state classification bin (3) lateral wall from opening and close storage tank (11) array distribution, gas circuit switching module (12) are fixed and locate solid-state classification bin (3) lateral wall, gas circuit switching module (12) are located elasticity atmospheric pressure and are opened and close storage tank (11) below, gas collection power module (13) are fixed and are located gas circuit switching module (12) lateral wall, elasticity atmospheric pressure is from opening and close storage tank (11), gas circuit switching module (12) and collection pneumatic assembly (13) through-connection in proper order.

2. The on-site sampling and sorting tank for fire investigation of claim 1, characterized in that: elasticity atmospheric pressure runs through fixed back taper blast pipe (111) that is equipped with from opening and close storage tank (11) upper end, elasticity atmospheric pressure runs through fixed toper intake pipe (112) that is equipped with from opening and close storage tank (11) lower extreme, back taper blast pipe (111) inner wall is followed fixed exhaust shutoff spring (1111) that is equipped with down, back taper blast pipe (111) inner wall is equipped with exhaust shutoff ball (1112), exhaust shutoff spring (1111) upper end and exhaust shutoff ball (1112) lower wall fixed connection, be equipped with into air shutoff spring (1121) along fixed under toper intake pipe (112) inner wall, toper intake pipe (112) inner wall is equipped with into air shutoff ball (1122), into air shutoff spring (1121) upper end and into air shutoff ball (1122) lower wall fixed connection.

3. The on-site sampling and sorting tank for fire investigation of claim 2, characterized in that: toper intake pipe (112) lateral wall is down run through fixedly along symmetric distribution and is equipped with the residual air from discharging and prevent mutual tube head (1123), the residual air is from discharging to prevent mutual tube head (1123) inside and is equipped with pressure blocking ball (1124), the residual air is from discharging to prevent mutual tube head (1123) tip that is close to each other and fixedly being equipped with respectively and blocks ball anticreep barrier strip (1125), the residual air is from discharging to prevent mutual tube head (1123) inside headroom and establishes to the toper.

4. The field sampling and sorting tank for fire investigation of claim 3, wherein: the air path switching assembly (12) comprises an air path switching cylinder (121) and an air path switching motor (122), the air path switching cylinder (121) and the air path switching motor (122) are respectively and fixedly arranged on the side wall of the solid-state classification storage box (3), air path switching holes (1211) are distributed on the circumferential side wall of the air path switching cylinder (121) in an annular and equidistant array mode and penetrate through the circumferential side wall of the air path switching cylinder, the lower end of the conical air inlet pipe (112) is respectively communicated with the air path switching holes (1211) through a pipeline, the gas circuit switching barrel (121) inside wall rotates and is equipped with gas circuit switching wheel (1212), gas circuit switching wheel (1212) circumference outer wall and gas circuit switching barrel (121) circumference inner wall slip the subsides closely, the coaxial fixed connection of gas circuit switching wheel (1212) and gas circuit switching motor (122) output, gas circuit switching wheel (1212) lateral wall is equipped with gas circuit switching groove (1213).

5. The on-site sampling and sorting tank for fire investigation of claim 4, characterized in that: the gas collection power assembly (13) comprises a gas collection pump (131) and a gas collection pipe (132), the gas collection pump (131) is fixedly arranged on the side wall of the gas path switching cylinder (121), the gas collection pipe (132) penetrates through and is fixedly arranged on the side wall of the gas path switching cylinder (121), and the gas collection pump (131) penetrates through the middle of the gas collection pipe (132).

6. The field sampling and sorting tank for fire investigation of claim 5, wherein: the inside array of mixed categorised bin (2) of powder-liquid is slided and is equipped with powder-liquid and mixes and divide and deposit strip (21), powder-liquid mixes and divides and deposits strip (21) lateral wall to be equipped with branch and deposit opening (211), powder-liquid mixes and divides and deposits strip (21) lateral wall to rotate and be equipped with one-way baffle (212), one-way baffle (212) symmetric distribution locates to divide and deposits opening (211) side, powder-liquid mixes and divides and deposits strip (21) inner wall slip and is equipped with range baffle (213), the powder-liquid mixes and divides the fixed range spring (214) that is equipped with of lateral wall of depositing opening (211) of inside far-away branch of depositing strip (21), range spring (214) are close to the tip of dividing and depositing opening (211) and range baffle (213) lateral wall fixed connection, powder-liquid mixes and divides and deposits strip (21) lower wall fixed being equipped with and extract electric putter (215), powder-liquid mixes and deposits strip (21) lower wall (21) and runs through being equipped with and draws power hole (216), it locates to extract power hole (216) inside to extract on extracting power push away from (217) and detect on the same detection line (216).

7. The field sampling and sorting tank for fire investigation of claim 6, wherein: the outer side wall of the powder-liquid mixing and classifying storage box (2) is fixedly provided with a sampling tube storage box (22).

8. The field sampling and sorting tank for fire investigation of claim 7, wherein: solid-state classification bin (3) inner wall array is fixed to be equipped with and stores guide rail (31), solid-state classification bin (3) lateral wall array runs through and is equipped with storage opening (32), the inside array of solid-state classification bin (3) slides and is equipped with pull storage box (33), pull storage box (33) slide respectively to be located on storing guide rail (31).

9. The field sampling and sorting tank for fire investigation of claim 8, wherein: the inside array of pull storage box (33) is equipped with storage tank (331), storage tank (331) lateral wall and diapire are fixed respectively and are equipped with flexible shock pad (3311), solid-state classification storage box (3) lower wall array rotates and is equipped with wheel body (34).

10. The field sampling and sorting tank for fire investigation of claim 9, wherein: the inner wall of the inverted cone-shaped exhaust pipe (111), the inner wall of the cone-shaped air inlet pipe (112), the outer wall of the exhaust plugging ball (1112) and the outer wall of the air inlet plugging ball (1122) are made of rubber materials respectively.