CN219367865U - Fresh air filtering device for laboratory - Google Patents

Abstract

The utility model belongs to the technical field of laboratory fresh air filtering devices, in particular to a laboratory fresh air filtering device which comprises a structural box; the structure box is provided with a ventilation device; an air suction port is formed in one side of the air suction cavity; the outer part of one end of the structural box provided with the air suction port is provided with a protective net cover; the bottom of the inner wall of the structural cavity is provided with a filtering unit; an air outlet is formed in one side of the air outlet cavity; the structure box is provided with a convenient moving device; a rotating rod is rotatably arranged at the upper position of the inner wall surface of the rotating groove through a pin shaft; the bottom of the rotating rod is rotatably provided with a small roller through a pin shaft; a first spring is fixedly connected to the position, close to the small roller, of the rotating rod; through breather and just mobile device's combined action, realized the purification to the gaseous in the laboratory, accomplished the buffering to induced draft speed and play wind velocity, avoided forming the phenomenon that wind revolves in the laboratory, made things convenient for the removal and the quick transport of new trend equipment.

Description

Fresh air filtering device for laboratory

Technical Field

The utility model relates to the technical field of laboratory fresh air filtering devices, in particular to a laboratory fresh air filtering device.

Background

Because the laboratory is tested frequently, the problems of toxic and harmful gas generation, emission of harmful gas such as waste gas generated in the laboratory, environmental pollution and the like are also concerned, so that the waste gas generated in the laboratory needs to be treated by using a fresh air filtering device so as to ensure the air environment quality in the laboratory and avoid the phenomenon of polluting the environment by the harmful gas;

the existing fresh air equipment consists of structures such as an air suction device, a filtering device, an exhaust device and the like, the air suction device sucks harmful gas in the air, the harmful gas acts through the filtering device, and the purified air is exhausted through the exhaust device, so that the effect of ventilation in a laboratory is realized;

however, when the existing fresh air equipment acts, the air flow at the air suction and air outlet positions is large, so that the air flow is easy to form wind whirl, the air flow speed in a laboratory is accelerated, some experimental data are changed, the experimental result is affected, in addition, the existing fresh air equipment is inconvenient to move in the carrying process, force is not convenient to apply, and collision phenomenon is easy to occur; therefore, a laboratory fresh air filtering device is provided for the problems.

Disclosure of Invention

In order to overcome the defects of the prior art and solve some existing problems of a laboratory fresh air filter device, the utility model provides the laboratory fresh air filter device.

The technical scheme adopted for solving the technical problems is as follows: the utility model relates to a laboratory fresh air filtering device, which comprises a structural box; a structural cavity is formed in the structural box; a closing plate is rotatably arranged on one side of the structural box through a pin shaft; the structure box is provided with a ventilation device; the ventilation device comprises an air suction cavity; one end of the structural cavity is divided into an air suction cavity by a partition plate; an air suction port is formed in one side of the air suction cavity; the air suction inlet is communicated with the external space; the outer part of one end of the structural box provided with the air suction port is provided with a protective net cover;

the bottom of the inner wall of the structural cavity is provided with a filtering unit; an air inlet pipe is arranged at one end of the filtering unit; the top of the air inlet pipe is connected with the air suction cavity; an exhaust fan is sleeved outside the section of the vertical pipe of the air inlet pipe; a filter box is sleeved outside the cross section of the bottom transverse pipe of the air inlet pipe; the other end of the filtering unit is provided with an air outlet pipe; a blower is sleeved outside the section of the vertical rod of the air outlet pipe; one end of the structural cavity is divided into an air outlet cavity by a partition plate; an air outlet is formed in one side of the air outlet cavity; the outer part of one end of the structural box provided with the air outlet is provided with a protective net cover; a handle is fixedly connected to the top of the structural box; the effect of quickly absorbing gas is realized, and wind whirling can not be formed.

Preferably, a filter cavity is formed in the filter box; a filter screen is arranged on one side of the connecting surface of the air inlet pipe transverse rod; the bottom of the filter box is provided with a collecting box; the filtering effect on the gas is realized.

Preferably, an action cavity is formed in the filtering unit; the bottom end of the air inlet pipe is connected with the action cavity; an activated carbon filter is arranged in the action cavity; one side of the activated carbon filter is connected with the air inlet pipe; the other side of the active carbon filter is connected with a chemical filter through an action pipe; one side of the chemical filter is connected with a sterilization unit through an action pipe; the sterilization unit is connected with the air outlet pipe; the purifying effect on harmful gas is realized.

Preferably, the structure box is provided with a convenient moving device; the excrement moving device comprises a rotating groove; the bottom of the protective net cover is provided with a rotating groove at the side surface of the structural box; a rotating rod is rotatably arranged at the upper position of the inner wall surface of the rotating groove through a pin shaft; the bottom of the rotating rod is rotatably provided with a small roller through a pin shaft; a first spring is fixedly connected to the position, close to the small roller, of the rotating rod; the bottom of the first spring is connected to the inner wall of the rotating groove; the first spring does not deform when in action; the spring I is in an elongated shape when acting; the movement of the structural box is facilitated.

Preferably, the bottom of the box body of the structural box is provided with telescopic grooves at positions close to two sides; a second spring is fixedly connected to one end of the inner wall of the telescopic groove; a baffle rod is fixedly connected to the end part of the second spring; the motion track of the gear lever is intersected with the motion track of the rotating lever; the rotating rod is intersected with the top of the gear rod when in an inactive state; when the rotating rod acts, the end part of the baffle rod extends out of the telescopic groove; the second spring is in a compressed state when the second spring is not in action; the stability of the rotating rod during the action is realized.

Preferably, a sliding groove is formed in the bottom of the box body of the structural box; an action rod is arranged in the sliding groove; the end part of the action rod is connected with the outer cambered surface of the baffle rod; the opening position of the sliding groove and the clamping position of the rotating groove are ninety degrees; the small roller is convenient to retract and release rapidly.

The utility model has the advantages that:

1. according to the utility model, through the structural design of the ventilation device, by opening the exhaust fan, the exhaust fan acts, harmful gas enters the air suction cavity from the protective net cover through the air suction opening, then enters the filter box through the air inlet pipe, enters the filter unit through preliminary filtration, and is filtered and purified under the sequential actions of the activated carbon filter, the chemical filter and the sterilization unit, purified fresh air enters the air outlet cavity through the action of the air outlet pipe and the blower, and is discharged through the air outlet, so that the purification of the gas in a laboratory is realized, the buffering of the air suction speed and the air outlet speed is realized, the phenomenon of wind whirling in the laboratory is avoided, the air flow speed in the laboratory is prevented from being greatly changed, and the accuracy of experimental data is ensured.

2. According to the utility model, through the structural design of the convenient moving device, the acting force is applied to the small roller, the rotating rod rotates along with the small roller, so that the small roller contacts the ground, and under the action of the second spring, the baffle rod extends out of the telescopic groove, so that the blocking and fixing effects on the rotating rod are realized, when the fresh air device is required to be fixedly arranged, the acting force is applied to the acting rod, the acting rod drives the baffle rod to move along the sliding groove, the baffle rod contracts, and under the action of the first spring, the rotating rod drives the small roller to retract in the rotating groove, thereby facilitating the movement and quick carrying of fresh air equipment, and improving the stabilizing effect on the fresh air equipment.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic view of an isometric structure of a first embodiment;

FIG. 2 is a schematic cross-sectional view of a structural box according to the first embodiment;

FIG. 3 is a schematic cross-sectional view of a filter box according to the first embodiment;

FIG. 4 is a schematic diagram of a filter unit according to the first embodiment;

FIG. 5 is an enlarged schematic view of the structure of FIG. 1A according to the first embodiment;

FIG. 6 is an enlarged schematic view of the structure of FIG. 2B according to the first embodiment;

fig. 7 is a schematic structural diagram of an isometric view of a second embodiment.

In the figure: 1. a structural box; 2. a structural cavity; 3. a closing plate; 401. an air suction cavity; 402. an air suction port; 403. a protective net cover; 404. a filtering unit; 405. an air inlet pipe; 406. an exhaust fan; 407. a filter box; 408. a collection box; 409. an air outlet pipe; 410. a blower; 411. an air outlet cavity; 412. an air outlet; 413. a filter chamber; 414. a filter screen; 415. an action chamber; 416. an activated carbon filter; 417. a chemical filter; 418. a sterilization unit; 419. a handle; 501. a rotating groove; 502. a rotating lever; 503. a small roller; 504. a first spring; 505. a telescopic slot; 506. a second spring; 507. a gear lever; 508. a sliding groove; 509. an action lever; 6. and (5) grinding the sand pad.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1-6, a laboratory fresh air filter device comprises a structural box 1; a structural cavity 2 is formed in the structural box 1; a closing plate 3 is rotatably arranged on one side of the structural box 1 through a pin shaft; the structure box 1 is provided with a ventilation device; the ventilation device comprises an air suction cavity 401; one end of the structural cavity 2 is divided into an air suction cavity 401 by a partition plate; one side of the air suction cavity 401 is provided with an air suction port 402; the air suction port 402 is communicated with the external space; the outer part of one end of the structural box 1 provided with the air suction port 402 is provided with a protective net cover 403;

the bottom of the inner wall of the structural cavity 2 is provided with a filtering unit 404; an air inlet pipe 405 is installed at one end of the filtering unit 404; the top of the air inlet pipe 405 is connected with the air suction cavity 401; an exhaust fan 406 is sleeved outside the section of the vertical pipe of the air inlet pipe 405; a filter box 407 is sleeved outside the cross section of the bottom transverse pipe of the air inlet pipe 405; the other end of the filter unit 404 is provided with an air outlet pipe 409; a blower 410 is sleeved outside the section of the vertical rod of the air outlet pipe 409; one end of the structural cavity 2 is divided into an air outlet cavity 411 by a partition plate; an air outlet 412 is formed in one side of the air outlet cavity 411; the outer part of one end of the structural box 1 provided with the air outlet 412 is provided with a protective net cover 403; a handle 419 is fixedly connected to the top of the structural box 1; the filter chamber 413 is arranged in the filter box 407; a filter screen 414 is arranged on one side of the connecting surface of the air inlet pipe 405 and the transverse rod; the bottom of the filter box 407 is provided with a collection box 408; the filter unit 404 is internally provided with an action cavity 415; the bottom end of the air inlet pipe 405 is connected with the action cavity 415; an activated carbon filter 416 is arranged in the action cavity 415; one side of the activated carbon filter 416 is connected with the air inlet pipe 405; the other side of the activated carbon filter 416 is connected with a chemical filter 417 through an action tube; a sterilizing unit 418 is connected to one side of the chemical filter 417 through an action pipe; the sterilization unit 418 is connected with the air outlet pipe 409; during operation, the laboratory is because often test, very easily produce poisonous harmful gas, the emission of harmful gas such as waste gas that produces in the laboratory, environmental pollution's scheduling problem receives attention equally, consequently, need utilize fresh air filter equipment to handle the waste gas that produces in the laboratory, so as to guarantee the air environment quality in the laboratory, the phenomenon of harmful gas polluted environment has also been avoided, but current fresh air equipment is in the time of doing, induced draft and the seeing of air-out department, the air flow is great, very easily form the whirlwind, the air flow rate in the laboratory has been accelerated, cause some experimental data to change, influence the experimental result, then act on through breather, through opening air exhauster 406, air exhauster 406 effect, harmful gas is by protection screen panel 403 through the inlet scoop 402, then get into suction plenum 401, then get into filter box 407 through air inlet duct 405, through preliminary filtration entering filter unit 404, the effect of active carbon filter 416, chemical filter 417 and sterilizing unit's effect down, the fresh air after that has realized filtering purification to harmful gas, the effect of air outlet duct 409 and air outlet 410, the effect of air flow, the inside of air outlet plenum 412 has very easy to form the whirlwind, the speed of doing so that the laboratory is changed, the laboratory is realized, the speed of the laboratory has been realized, the laboratory has not had the laboratory to have realized the change, the laboratory has realized the speed that the laboratory has changed, has been accomplished the laboratory has been greatly to have realized.

The structure box 1 is provided with a convenient moving device; the means for moving comprises a rotating slot 501; a rotary groove 501 is formed in the bottom of the protective screen 403 and located at the side surface of the structural box 1; a rotating rod 502 is rotatably arranged at an upper position of the inner wall surface of the rotating groove 501 through a pin shaft; the bottom of the rotating rod 502 is rotatably provided with a small roller 503 through a pin shaft; a first spring 504 is fixedly connected to the rotating rod 502 at a position close to the small roller 503; the bottom of the first spring 504 is connected to the inner wall of the rotary tank 501; the spring number one 504 does not deform when acted upon; spring number one 504 is elongated when acting; the bottom of the structural box 1 is provided with telescopic grooves 505 at positions close to two sides; a second spring 506 is fixedly connected to one end of the inner wall of the expansion groove 505; a stop lever 507 is fixedly connected to the end part of the second spring 506; the motion track of the lever 507 intersects with the motion track of the rotation lever 502; the rotating lever 502, in the inactive state, intersects the top of the lever 507; when the rotating rod 502 is in operation, the end part of the baffle 507 extends out of the telescopic groove 505; spring number two 506 is in compression when inactive; a sliding groove 508 is formed in the bottom of the box body of the structural box 1; an action bar 509 is arranged in the sliding groove 508; the end of the action lever 509 is connected with the outer arc surface of the lever 507; the opening position of the sliding groove 508 is ninety degrees with the clamping position of the rotating groove 501; during operation, current fresh air equipment is inconvenient to remove in the in-process of transport, inconvenient application of force, very easily take place the collision phenomenon, this application then acts on through just moving device, it applys effort to lead to little gyro wheel 503, dwang 502 rotates thereupon, make little gyro wheel 503 contact ground, and under the effect of No. two springs 506, the shelves pole 507 stretches out in the flexible groove 505, the fixed effect that blocks to dwang 502 has been realized, when needing fixed fresh air device that sets up, apply effort to action pole 509, action pole 509 drives shelves pole 507 along sliding tray 508 motion, shelves pole 507 shrink, under the effect of No. one springs 504, dwang 502 drives little gyro wheel 503 to receive and close inside the rotating groove 501, the removal and the quick handling of fresh air equipment have been made things convenient for, the steady effect to fresh air equipment has also been improved.

Example two

Referring to fig. 7, in a first comparative example, as another embodiment of the present utility model, a sanding pad 6 is attached to the outer surface of a handle 419; when in work, the phenomenon of hand sliding can not occur when the structural box 1 is carried.

Working principle: the laboratory is easy to generate toxic and harmful gases due to frequent experiments, and the problems of emission, environmental pollution and the like of harmful gases such as waste gases generated in the laboratory are also concerned, so that the waste gases generated in the laboratory are required to be treated by a fresh air filtering device so as to ensure the air environment quality in the laboratory, and the phenomenon that the harmful gases pollute the environment is avoided, but when the conventional fresh air equipment is in action, the air flows greatly and easily forms wind whirl, the air flow speed in the laboratory is accelerated, some experimental data are changed, the experimental results are influenced, the air flow speed in the laboratory is greatly improved, the experiment results are influenced, the air ventilation device is in action, the exhaust fan 406 is in action, the harmful gases enter the air suction cavity 401 through the protective screen 403, then enter the filter box 407 through the air inlet pipe 405, enter the filter unit 404 through preliminary filtration, the effect of filtering and purification of the harmful gases are realized under the sequential actions of the active carbon filter 416, the chemical filter 417 and the sterilizing unit 418, the purified fresh air enters the air outlet pipe 409 and the air blower 410, the air flow inside the air outlet cavity 412, the air flow speed of the laboratory is accurately buffered in the laboratory, and the experiment is prevented from being changed in the laboratory; in addition, current fresh air equipment is inconvenient to remove at the in-process of transport, inconvenient application of force, very easily take place the collision phenomenon, this application then acts on through just moving device, it applys effort to lead to little gyro wheel 503, dwang 502 rotates thereupon, make little gyro wheel 503 contact ground, and under the effect of No. two springs 506, baffle lever 507 stretches out in the flexible groove 505, the fixed effect that blocks to dwang 502 has been realized, when needing fixed fresh air device that sets up, apply effort to action lever 509, action lever 509 drives baffle lever 507 along sliding tray 508 motion, baffle lever 507 shrink, under the effect of No. one springs 504, dwang 502 drives little gyro wheel 503 to receive inside rotating groove 501, the removal and the quick handling of fresh air equipment have been made things convenient for, the stable effect to fresh air equipment has also been improved.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, 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 present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims (6)

1. The laboratory fresh air filtering device comprises a structural box (1); a structural cavity (2) is formed in the structural box (1); a closing plate (3) is rotatably arranged on one side of the structural box (1) through a pin shaft; the structure box (1) is provided with a ventilation device; the method is characterized in that: the ventilation device comprises an air suction cavity (401); one end of the structural cavity (2) is divided into an air suction cavity (401) through a partition plate; an air suction port (402) is formed in one side of the air suction cavity (401); the air suction inlet (402) is communicated with the external space; a protective net cover (403) is arranged outside one end of the structural box (1) provided with the air suction port (402);

a filtering unit (404) is arranged at the bottom of the inner wall of the structural cavity (2); an air inlet pipe (405) is arranged at one end of the filtering unit (404); the top of the air inlet pipe (405) is connected with the air suction cavity (401); an exhaust fan (406) is sleeved outside the section of the vertical pipe of the air inlet pipe (405); a filter box (407) is sleeved outside the cross section of the bottom transverse pipe of the air inlet pipe (405); an air outlet pipe (409) is arranged at the other end of the filtering unit (404); a blower (410) is sleeved outside the section of the vertical rod of the air outlet pipe (409); one end of the structural cavity (2) is divided into an air outlet cavity (411) through a partition plate; an air outlet (412) is formed in one side of the air outlet cavity (411); a protective net cover (403) is arranged outside one end of the structural box (1) provided with the air outlet (412); the top of the structural box (1) is fixedly connected with a handle (419).

2. The laboratory fresh air filter device according to claim 1, wherein: a filter cavity (413) is formed in the filter box (407); a filter screen (414) is arranged on one side of the connecting surface of the transverse rod of the air inlet pipe (405); a collecting box (408) is arranged at the bottom of the filter box (407).

3. The laboratory fresh air filter device according to claim 2, wherein: an action cavity (415) is formed in the filtering unit (404); the bottom end of the air inlet pipe (405) is connected with the action cavity (415); an activated carbon filter (416) is arranged in the action cavity (415); one side of the activated carbon filter (416) is connected with the air inlet pipe (405); the other side of the activated carbon filter (416) is connected with a chemical filter (417) through an action pipe; one side of the chemical filter (417) is connected with a sterilizing unit (418) through an action pipe; the sterilization unit (418) is connected with the air outlet pipe (409).

4. A laboratory fresh air filter according to claim 3, wherein: the structure box (1) is provided with a convenient moving device; the toilet moving device comprises a rotating groove (501); a rotating groove (501) is formed in the bottom of the protective net cover (403) and located at the side surface of the structural box (1); a rotating rod (502) is rotatably arranged at an upper position of the inner wall surface of the rotating groove (501) through a pin shaft; the bottom of the rotating rod (502) is rotatably provided with a small roller (503) through a pin shaft; a first spring (504) is fixedly connected to the position, close to the small roller (503), of the rotating rod (502); the bottom of the first spring (504) is connected to the inner wall of the rotating groove (501); the spring I (504) does not deform when acting; the primary spring (504) is elongated when acting.

5. The laboratory fresh air filter device according to claim 4, wherein: the bottom of the box body of the structural box (1) is provided with telescopic grooves (505) at positions close to two sides; a second spring (506) is fixedly connected to one end of the inner wall of the telescopic groove (505); a baffle rod (507) is fixedly connected to the end part of the second spring (506); the motion track of the baffle lever (507) is intersected with the motion track of the rotating lever (502); the rotating rod (502) is intersected with the top of the baffle rod (507) when in an inactive state; when the rotating rod (502) acts, the end part of the baffle rod (507) extends out of the telescopic groove (505); the spring number two (506) is in a compressed state when inactive.

6. The laboratory fresh air filter device according to claim 5, wherein: a sliding groove (508) is formed in the bottom of the box body of the structural box (1); an action rod (509) is arranged in the sliding groove (508); the end part of the action rod (509) is connected with the outer cambered surface of the baffle rod (507); the opening position of the sliding groove (508) is 90 degrees with the clamping position of the rotating groove (501).