CN113617785B

CN113617785B - Ventilation system for pathology laboratory

Info

Publication number: CN113617785B
Application number: CN202110992458.XA
Authority: CN
Inventors: 谢琳琳; 杨珺; 潘献柱; 汪晓庆
Original assignee: Anhui Medical College
Current assignee: Anhui Medical College
Priority date: 2021-08-27
Filing date: 2021-08-27
Publication date: 2022-05-31
Anticipated expiration: 2041-08-27
Also published as: CN113617785A

Abstract

The invention belongs to the technical field of ventilation of laboratories, and particularly relates to a ventilation system for a pathology laboratory. The invention can seal the fume hood which has a fire accident, spray extinguishing gas to the inside of the fume hood to extinguish fire, and simultaneously can discharge the smoke in a normal working state and the smoke generated by the fire in a classified manner, the smoke generated by the fire is discharged through the special channel, thereby effectively avoiding the pollution of high-concentration smoke to a normal flue and the occurrence of smoke cross in the discharge process of the smoke in the fire process, and improving the efficiency and the safety of smoke treatment in a laboratory.

Description

Ventilation system for pathology laboratory

Technical Field

The invention relates to the technical field of ventilation of laboratories, in particular to a ventilation system of a pathology laboratory.

Background

The fume chamber is one of the conventional ventilation equipment in laboratory, can provide experiment operation for the experimenter and unprecedentedly, simultaneously can be timely with smog and the harmful gas discharge of experimentation production, but current fume chamber is when using, the equal public one of exhaustsmoke passage, when taking place the accident when carrying out the experiment, can produce a large amount of more dense smog this time, conventional fume chamber discharges untimely, discharge from the fume chamber window easily, simultaneously smog is easy to be followed the exhaustsmoke passage and is strutted the cigarette to the flue mouth of other positions, and the exhaust passage is easily by smoke pollution, for this needs a pathology laboratory ventilation system.

Disclosure of Invention

The ventilation system for the pathology laboratory provided by the invention solves the problems in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

a ventilation system for a pathology laboratory comprises a ventilation cabinet, wherein a top partition plate and a bottom partition plate are fixedly connected to the inside of the ventilation cabinet, the bottom partition plate is located at the bottom of the top partition plate, the same side of the top partition plate and the same side of the bottom partition plate are connected with the same sealing mechanism in a sliding mode, an air draft mechanism is installed at the top of the top partition plate, and a separation mechanism is installed at the bottom of the bottom partition plate;

the closing mechanism includes the movable rod with top baffle and end baffle sliding connection, the one end rigid coupling that the movable rod stretches out top baffle top has the closing plate, one side top rigid coupling that the closing plate is close to air drafting mechanism has the contact plate, the spur rack of inlaying on the closing plate lateral wall is installed to the bottom of contact plate, the spur rack is close to one side below meshing of air drafting mechanism has the gear that cup joints with the fume chamber activity, the gear is kept away from one side of spur rack and is installed the butt joint unit with the fume chamber rigid coupling, the inside reservation of closing plate has the distribution cavity, the contact plate reservation has the butt joint passageway with the U type structure of distribution cavity butt joint.

Preferably, exhaust mechanism includes the convulsions housing that cup joints with the top baffle is fixed, the fixed cup joint in top of convulsions housing has the exhaust column, the internally mounted of exhaust column has along the separator plate of its length direction distribution, and the dwang that cup joints with the exhaust column activity is all installed to the one end both sides that the separator plate is close to the convulsions housing, and the outer lane of dwang is all fixed cup joint has the returning face plate, and two sets of dwangs stretch out the one end of exhaust column and install same and fume chamber inside wall sliding connection's push pedal, one side rigid coupling that the push pedal is close to the closure plate has the slurcam that the slope set up, and the push pedal rigid coupling has rack one that sets up along the horizontal direction, and one side meshing of rack one has gear one with adjacent dwang meshing.

Preferably, separating mechanism includes that there is the collection housing with end baffle bottom rigid coupling, and the internally mounted of collecting the housing has the fly leaf, the one end rigid coupling that the fly leaf is close to the movable rod has the closing plate of collecting housing inside wall sliding connection, and the one end of collecting the housing and being close to the movable rod runs through there is the intercommunication passageway, and intercommunication passageway sliding connection has the butt plate with the L type structure of closing plate rigid coupling, and the top rigid coupling of fly leaf has the shutoff pole that cup joints with end baffle activity, and the one end that the movable rod was kept away from to the fly leaf is installed the butt joint pipe with the fume chamber intercommunication, and the fluid-discharge tube of being connected with the fume chamber is installed to the bottom of butt joint pipe.

Preferably, the butt joint unit includes the base with fume chamber inside wall rigid coupling, the hole of stretching into has been seted up at the top of base, stretches into the bottom in hole and has seted up and hold the chamber, the inside in chamber slides and has cup jointed the piston board, and the top rigid coupling of piston board has and stretches into the movable tube that the hole slides and cup joint, and the movable tube is close to the one end outside of piston board and runs through there is the intercommunicating pore, the outer lane inside wall rigid coupling that holds the chamber has rather than the guide board of top inside wall rigid coupling, and the guide board is kept away from and is close to piston board one side bottom and has seted up the butt joint groove, and the piston board slides with the guide board and cup joints, and the movable tube stretches out the one end rigid coupling that stretches into hole top and has the baffle, and baffle bottom rigid coupling has spring one with base top rigid coupling, and the bottom intercommunication in chamber has the trachea.

Preferably, one side of the top of the pushing plate, which is far away from the contact plate, is fixedly connected with a second spring, and the other end of the second spring is fixedly connected with a stop block fixedly connected with the ventilation cabinet.

Preferably, the bottom of the butt plate is fixedly connected with a third spring fixedly connected with the fume hood, and the bottom partition plate penetrates through a discharge hole sleeved with the plugging rod.

Preferably, one side of the distribution cavity close to the top partition plate is provided with a spray hole penetrating through the closing plate.

In the present invention,

through the arranged fume hood, the top baffle plate, the bottom baffle plate, the movable rod, the closing plate, the contact plate, the distribution cavity, the spur rack, the gear, the air draft housing, the air draft pipe, the separation plate, the turnover plate, the rotating rod, the push plate, the contact plate, the collection housing, the movable plate, the sealing plate, the butt joint pipe, the blocking rod, the base, the stretching hole, the containing cavity, the guide plate, the butt joint groove, the piston plate, the intercommunicating pore, the movable pipe and the baffle plate, the design can seal the fume hood with fire accidents, the fire extinguishing gas is sprayed into the fume hood to extinguish the fire, meanwhile, the fume in the normal working state and the fume generated by the fire can be classified and discharged, the fume generated by the fire is discharged through a special channel, the pollution to the normal flue and the fume mixing during the discharging of high-concentration fume in the fire process are effectively avoided, the efficiency and the security of laboratory smoke treatment are improved.

Drawings

Fig. 1 is a schematic structural view of a ventilation system of a pathology laboratory according to the present invention;

FIG. 2 is a partially enlarged structural view of a ventilation system A of a pathology laboratory according to the present invention;

FIG. 3 is a partially enlarged structural view of a ventilation system B of a pathology laboratory according to the present invention;

fig. 4 is a schematic structural diagram of a docking unit of a ventilation system of a pathology laboratory according to the present invention.

In the figure: the device comprises a ventilation cabinet 1, a top partition board 2, a bottom partition board 3, a docking unit 7, a movable rod 41, a closing board 42, a contact board 43, a distribution cavity 44, a spur rack 45, a gear 46, a docking channel 47, an exhaust hood 51, an exhaust pipe 52, a separating board 53, a turnover board 54, a rotating rod 55, a pushing board 56, a pushing board 57, a collecting hood 61, a movable board 62, a sealing board 63, a docking board 64, a docking pipe 65, a docking rod 66, a base 71, a stretching-in hole 72, a containing cavity 73, a guide board 74, a docking groove 75, a piston board 76, a communication hole 77, a movable pipe 78 and a baffle plate 79.

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.

Referring to fig. 1-4, a ventilation system for a pathology laboratory comprises a ventilation cabinet 1 and is characterized in that a top partition plate 2 and a bottom partition plate 3 are fixedly connected inside the ventilation cabinet 1, the bottom partition plate 3 is positioned at the bottom of the top partition plate 2, the same side of the top partition plate 2 and the same side of the bottom partition plate 3 are slidably connected with the same sealing mechanism, an air draft mechanism is installed at the top of the top partition plate 2, and a separation mechanism is installed at the bottom of the bottom partition plate 3;

further, the closing mechanism comprises a movable rod 41 connected with the top partition board 2 and the bottom partition board 3 in a sliding mode, a closing board 42 is fixedly connected to one end, extending out of the top partition board 2, of the movable rod 41, a contact board 43 is fixedly connected to the top of one side, close to the air draft mechanism, of the closing board 42, a spur rack 45 embedded on the side wall of the closing board 42 is installed at the bottom of the contact board 43, a gear 46 movably sleeved with the fume hood 1 is meshed below one side, close to the air draft mechanism, of the spur rack 45, a butt joint unit 7 fixedly connected with the fume hood 1 is installed on one side, far away from the spur rack 45, of the gear 46, a distribution cavity 44 is reserved inside the closing board 42, and a butt joint channel 47 of a U-shaped structure in butt joint with the distribution cavity 44 is reserved on the contact board 43.

Specifically, exhaust mechanism includes the convulsions housing 51 with the fixed cup joint of top baffle 2, the fixed exhaust column 52 that has cup jointed in top of convulsions housing 51, the internally mounted of exhaust column 52 has the separator plate 53 along its length direction distribution, the dwang 55 that cup joints with the activity of exhaust column 52 is all installed to the one end both sides that separator plate 53 is close to convulsions housing 51, the outer lane of dwang 55 all is fixed to cup joint has the returning face plate 54, the one end that exhaust column 52 was stretched out to two sets of dwang 55 is installed same push pedal 56 with 1 inside wall sliding connection of fume chamber, one side rigid coupling that push pedal 56 is close to closure plate 42 has the slurcam 57 that the slope set up, push pedal 56 rigid coupling has the rack one that sets up along the horizontal direction, one side meshing of rack one has the gear one with adjacent dwang 55 meshing.

Particularly, the separating mechanism comprises a collecting cover 61 fixedly connected with the bottom of the bottom partition plate 3, a movable plate 62 is mounted inside the collecting cover 61, a sealing plate 63 in sliding connection with the inner side wall of the collecting cover 61 is fixedly connected to one end, close to the movable rod 41, of the movable plate 62, a communication channel penetrates through one end, close to the movable rod 41, of the collecting cover 61, the communication channel is slidably connected with an L-shaped abutting plate 64 fixedly connected with the sealing plate 63, a blocking rod 66 movably sleeved with the bottom partition plate 3 is fixedly connected to the top of the movable plate 62, a butt joint pipe 65 communicated with the fume hood 1 is mounted at one end, far away from the movable rod 41, of the movable plate 62, and a liquid discharge pipe connected with the fume hood 1 is mounted at the bottom of the butt joint pipe 65.

It is worth explaining, docking unit 7 includes base 71 with the inside wall rigid coupling of fume chamber 1, base 71's top has been seted up and has been stretched into hole 72, stretch into hole 72's bottom has been seted up and has been held chamber 73, the inside slip that holds chamber 73 has cup jointed piston plate 76, piston plate 76's top rigid coupling has and stretches into movable pipe 78 that hole 72 slip cup jointed, the one end outside that movable pipe 78 is close to piston plate 76 has run through intercommunicating pore 77, the outer lane inside wall rigid coupling that holds chamber 73 has the guide board 74 rather than the top inside wall rigid coupling, guide board 74 keeps away from and has seted up docking slot 75 near piston plate 76 one side bottom, and piston plate 76 and guide board 74 slip cup joint, movable pipe 78 stretches out the one end rigid coupling that stretches into hole 72 top and has baffle 79, baffle 79 bottom rigid coupling has the spring one with base 71 top rigid coupling, the bottom intercommunication that holds chamber 73 has the trachea.

In addition, a second spring is fixedly connected to one side of the top of the pushing plate 57 away from the contact plate 43, and a stopper fixedly connected with the ventilation hood 1 is fixedly connected to the other end of the second spring.

Besides, the bottom of the abutting plate 64 is fixedly connected with a third spring fixedly connected with the fume hood 1, and the bottom partition plate 3 is penetrated with a discharge hole sleeved with the plugging rod 66.

Furthermore, one side of the distribution cavity 44 close to the top partition plate 2 is provided with a spray hole penetrating through the closing plate 42;

the first embodiment is as follows:

the gas holder is installed at the top of convulsions housing 51, the gas holder is connected with the trachea, collect the bottom of housing 61 and install the controller, temperature sensor and smoke transducer are installed to the bottom of top baffle 2, the inner circle rigid coupling of gear 46 has the pivot of cup jointing with fume chamber 1 activity, the motor is installed to the one end that the fume chamber was stretched out in the pivot, the controller and motor, temperature sensor and smoke transducer electricity are connected, separator plate 53 separates exhaust column 52 for being close to the convulsions chamber of closing plate 42 one side and keeping away from the chamber of discharging fume of closing plate 42 one side, the chamber of discharging fume communicates with butt joint pipe 65.

The working principle is as follows: when the device is used, when an experimenter conducts an experiment at a position between the top clapboard 2 and the bottom clapboard 3, an experiment accident occurs, at the moment, a temperature sensor and a smoke sensor at the bottom of the top clapboard 2 are triggered, then a motor is controlled to rotate, the motor drives a gear 46 to rotate, then the gear 46 drives a spur rack 45 to move downwards, then a sealing plate 42 moves downwards to seal an operation window arranged between the top clapboard 2 and the bottom clapboard 3, meanwhile, the sealing plate 42 moves downwards, a push plate 57 butted with a contact plate 43 moves towards the direction of the sealing plate 42 under the action of a spring II, then a push plate 56 moves along with the push plate, when the push plate 56 moves, the rack I on the push plate drives an adjacent gear I to rotate, then two groups of rotating rods 55 rotate along with the rotating plate, at the moment, the turnover plate 54 positioned in the air draft cavity deflects downwards to seal the air draft cavity, the turnover plate 54 positioned in the smoke discharge cavity deflects upwards to open the smoke discharge cavity, at the moment, the smoke generated by the accident can be discharged upwards along the smoke discharge cavity;

when the abutting plate 64 moves downwards, the sealing plate 63 moves downwards to enable the movable plate 62 to move downwards, then the blocking rod 66 is drawn out from the discharge hole above the bottom partition plate 3, at the moment, liquid and smoke on the bottom partition plate 3 are discharged downwards along the discharge hole, finally, the liquid is discharged from a liquid discharge pipe on the collecting housing 61, and the smoke is discharged to a smoke discharge cavity along the abutting pipe 65;

when the closing plate 42 moves downwards, the contact plate 43 on the closing plate moves downwards to be in butt joint with the butt joint unit 7, the butt joint channel 47 on the contact plate 43 is sleeved from the top of the movable pipe 78, the bottom of the contact plate 43 is in contact with the top of the baffle 79, then the baffle 79 is pressed downwards, the piston plate 76 moves to the position of the butt joint groove 75 along the guide plate 74, the fire extinguishing gas on the containing cavity 73 flows to the position above the piston plate 76 along the butt joint groove 75, enters the movable pipe 78 from the communication hole 77, then flows to the distribution cavity 44 along the butt joint channel 47, and finally is sprayed out from the spray holes to perform fire extinguishing operation, the design can perform sealing treatment on a fume hood with fire accidents, perform fire extinguishing by spraying the fire extinguishing gas inside the fume hood, and simultaneously perform classified discharge on the smoke in a normal working state and the smoke generated by the fire, and discharge the smoke generated by the fire through a special channel, effectively avoid the pollution and the cross-smoke condition of high concentration smog in the fire disaster in-process to normal flue to take place, improve laboratory smog and handled efficiency and security.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The ventilation system for the pathology laboratory comprises a ventilation cabinet (1) and is characterized in that a top partition plate (2) and a bottom partition plate (3) are fixedly connected to the interior of the ventilation cabinet (1), the bottom partition plate (3) is located at the bottom of the top partition plate (2), the same side of the top partition plate (2) and the same side of the bottom partition plate (3) are slidably connected with the same sealing mechanism, an air draft mechanism is installed at the top of the top partition plate (2), and a separation mechanism is installed at the bottom of the bottom partition plate (3);

the closing mechanism comprises a movable rod (41) which is connected with the top clapboard (2) and the bottom clapboard (3) in a sliding way, one end of the movable rod (41) extending out of the top clapboard (2) is fixedly connected with a sealing plate (42), a contact plate (43) is fixedly connected with the top of one side of the closing plate (42) close to the air draft mechanism, the bottom of the contact plate (43) is provided with a spur rack (45) embedded on the side wall of the closing plate (42), a gear (46) movably sleeved with the fume hood (1) is meshed below one side of the straight rack (45) close to the air draft mechanism, one side of the gear (46) far away from the spur rack (45) is provided with a butt joint unit (7) fixedly connected with the fume hood (1), a distribution cavity (44) is reserved in the closing plate (42), and a butt joint channel (47) of a U-shaped structure in butt joint with the distribution cavity (44) is reserved in the contact plate (43);

the air draft mechanism comprises an air draft shield shell (51) fixedly sleeved with the top clapboard (2), the top of the air draft housing (51) is fixedly sleeved with an air draft pipe (52), the inside of the air draft pipe (52) is provided with a separating plate (53) distributed along the length direction of the air draft pipe, two sides of one end of the separating plate (53) close to the air draft housing (51) are respectively provided with a rotating rod (55) movably sleeved with the air draft pipe (52), the outer ring of the rotating rod (55) is respectively and fixedly sleeved with a turnover plate (54), one end of the two groups of rotating rods (55) extending out of the air draft pipe (52) is provided with a same push plate (56) in sliding connection with the inner side wall of the ventilation cabinet (1), one side of the push plate (56) close to the closing plate (42) is fixedly connected with a push plate (57) which is obliquely arranged, the push plate (56) is fixedly connected with a first rack which is arranged along the horizontal direction, and one side of the first rack is meshed with a first gear which is meshed with the adjacent rotating rod (55);

the separating mechanism comprises a collecting cover shell (61) fixedly connected with the bottom of a bottom partition plate (3), a movable plate (62) is installed inside the collecting cover shell (61), a sealing plate (63) in sliding connection with the inner side wall of the collecting cover shell (61) is fixedly connected to one end, close to a movable rod (41), of the movable plate (62), a communicating channel penetrates through one end, close to the movable rod (41), of the collecting cover shell (61), the communicating channel is in sliding connection with a butt joint plate (64) of an L-shaped structure fixedly connected with the sealing plate (63), a blocking rod (66) movably sleeved with the bottom partition plate (3) is fixedly connected to the top of the movable plate (62), a butt joint pipe (65) communicated with the ventilating cabinet (1) is installed at one end, far away from the movable rod (41), of the movable plate (62), and a liquid discharge pipe connected with the ventilating cabinet (1) is installed at the bottom of the butt joint pipe (65);

the butt joint unit (7) comprises a base (71) fixedly connected with the inner side wall of the ventilation cabinet (1), an extension hole (72) is formed in the top of the base (71), an accommodating cavity (73) is formed in the bottom of the extension hole (72), a piston plate (76) is slidably sleeved in the accommodating cavity (73), a movable pipe (78) slidably sleeved in the extension hole (72) is fixedly connected to the top of the piston plate (76), a communication hole (77) penetrates through the outer side of one end, close to the piston plate (76), of the movable pipe (78), a guide plate (74) fixedly connected with the inner side wall of the top of the outer ring of the accommodating cavity (73) is fixedly connected to the inner side wall of the outer ring of the accommodating cavity (73), a butt joint groove (75) is formed in the bottom of one side, close to the piston plate (76), of the piston plate (76) is slidably sleeved with the guide plate (74), a baffle (79) is fixedly connected to one end, extending out of the movable pipe (78) of the top of the extension hole (72), the bottom of the baffle (79) is fixedly connected with a first spring fixedly connected with the top of the base (71), and the bottom of the accommodating cavity (73) is communicated with an air pipe.

2. The ventilation system of the pathology laboratory according to claim 1, wherein a second spring is fixedly connected to one side of the top of the pushing plate (57) far away from the contact plate (43), and a stop block fixedly connected to the ventilation hood (1) is fixedly connected to the other end of the second spring.

3. The ventilation system for pathology laboratories according to claim 1, wherein the bottom of the abutting plate (64) is fixedly connected with a third spring fixedly connected with the ventilation hood (1), and the bottom partition plate (3) is provided with a discharge hole in a sleeved mode with the blocking rod (66).

4. Ventilation system according to claim 1, characterised in that the side of said distribution cavity (44) close to the top partition (2) is provided with holes that penetrate the closing plate (42).