KR101281113B1 - Experiment table having drying means and shelf with exhausting means - Google Patents

Abstract

PURPOSE: A closed exhaust type experiment stand with reagent shelves and a drying unit is provided to discharge all kinds of gas and smell caused by reagents and harmful gas generated when experimenting in the experiment stand without the waste of electricity. CONSTITUTION: A closed exhaust type experiment stand with reagent shelves and a drying unit comprises an experiment table (100), reagent shelves (200), a sink table (300), and an independent upward exhaust unit (500). An upper plate (120) is fixed on the top of a table frame of the experiment table. The reagent shelves comprise shelve columns (210) vertically installed in both sides of the upper plate; plates (220) for connecting the shelve columns; and shelve doors (230) installed in the front side of the plates. The sink table is installed in one side of the upper plate and has a water supply system for cleaning experimental tools. The independent upward exhaust unit is installed above the upper plate to exhaust harmful gas through the front side of the reagent shelves.

Description

EXPERIMENT TABLE HAVING DRYING MEANS AND SHELF WITH EXHAUSTING MEANS}

The present invention relates to an experimental bench which is a desk on which various experiments are carried out in a laboratory, and more particularly, by installing a reagent shelf equipped with a closed exhaust means for discharging harmful gas in each shelf type test table, It is able to discharge various gases and odors generated from reagents and to release harmful gases that can be generated when working on a test bench without any inconvenience or waste of power. It relates to a test bench equipped with an exhaust reagent rack and drying means.

The bench will provide a base table for conducting chemical experiments using various chemicals in a laboratory or a laboratory, and a shelf space for placing each reagent required for the experiment on a shelf. During the experiment, various experimental instruments are placed, so that it is equipped with a top plate that is wider than a general study or office desk.

Accordingly, the conventional test bench generally comprises a table frame forming a basic frame, a side plate supporting both side surfaces of the table frame, and an upper plate installed on the table frame.

All experiments require various reagents. Among the reagents required for experiments, reagents that generate harmful gases are separately stored by installing a sealed reagent storage device, which is an expensive storage mechanism, to filter and exhaust pollutants. However, considering the limitations of the laboratory space and the movement of the experimenter to the storage equipment for moving the reagents required for each experiment, there has been inefficiency and inconvenience of time utilization.

Therefore, the reagents required for the general experiment have inconvenience that the smell is generated here because the reagents required for the experiment are stored on the shelf of the test track after the experiment.

In addition, in a laboratory in which a plurality of test benches are installed, a fume hood is generally installed to discharge harmful gas that may be generated during an experiment through a duct installed to reach an outside of the laboratory. Exhaust systems are often installed to generate power to work in a confined space in which the gas is partially enclosed by a hood.

However, while the ducted fume hood is provided with an exhaust device, such an exhaust device is installed for the purpose of releasing harmful gas in a limited space of a device called a hood. Even if it is made, since the emission of harmful gases from the entire laboratory must be made, the fume hood operation has been cumbersome and the experiments have often been made.

Accordingly, in recent years, as disclosed in the Republic of Korea Patent Publication No. 10-0956016, there is a separate exhaust device for quickly discharging the harmful substances generated during the experiment in the simple test bench for experiments with low risk A simple bench was disclosed.

However, the simple test table equipped with such an exhaust system has an advantage that it is possible to quickly and easily discharge the hazardous substances by installing individual exhaust devices on the experiment table. By forming the inlet and inhaling the discharge in the lower part of the test table, the suction force for inhaling harmful gas on the front of the test table has a problem that inevitably leads to an experiment. Especially, when volatile alcohol such as alcohol is used, the degree of volatilization of alcohol and the like is influenced by the suction force at the inlet which sucks in the front surface of the experimental table, so that it is difficult to carry out an accurate experiment. There is a problem that it can not be activated.

Therefore, even when the exhaust means are individually installed on a bench that can suck harmful gases, a new bench is still required to minimize the influence of the suction force generated by the operation of the exhaust means on the bench top where the experiment is performed. .

In addition, conventionally, there has been a problem that it is difficult to sufficiently dry the vitreous body when storing the vitreous body made of glass, such as a beaker or a flask, in a rack or a cabinet.

Accordingly, recently, as disclosed in Korean Patent No. 10-1020847, a test bench having a glazing mechanism between the sinks provided in the test stand has been disclosed. However, the experimental bench equipped with such a glassware drying stand has several advantages of allowing holders to dry the glassware by proposing various structures of the holder to support various types of glassware in an inverted state. There was a problem that takes a long time to dry.

Therefore, there has been an inconvenience in that an oven device, which is an independent high-priced equipment, must be installed and dried for rapid drying for quick experiment. When using such an oven device, there was an inconvenience of moving the labware to the installation place of the oven device because it is separated from the sink for cleaning. To eliminate this inconvenience, the dryer is integrated with the sink to improve convenience. The need still exists.

The problem to be solved by the present invention, by installing a reagent shelf equipped with a closed exhaust means capable of discharging the harmful gas for each shelf-type experiment table, to discharge various gases and odors generated from the reagents displayed on the reagent shelf and At the same time, it provides a test bench equipped with a sealed exhaust type reagent rack and drying means that can discharge the harmful gas that can be generated when working on the test bench without any inconvenience or waste of power. Is in.

Experimental table equipped with a closed exhaust type reagent rack and drying means for solving the above problems,

An experiment table on which an upper plate on which an experiment is performed is fixed on an upper portion of a table frame supporting a ground; Installed on top of the top plate to store the experimental instruments and reagents, the shelf pillars installed vertically on both sides of the upper plate, a plate connecting between the shelf pillars to form a storage space, and the front of the plate A reagent shelf installed on the shelf door to be opened and closed by an operator; A sink table installed at one side of the upper plate and connected to a water supply facility for washing an experiment apparatus or a vitreous apparatus; And an independent upward exhaust means installed at an upper portion of the upper plate and discharging the harmful gas to the upper portion through the front surface of the reagent shelf.

At this time, the independent upward exhaust means,

A gas suction hole formed through the plate forming the reagent shelf to form a discharge passage for sucking harmful gas from the lower portion of the reagent shelf to the upper portion; An exhaust fan installed on one side of the shelf pillar forming the shelf to generate power for sucking harmful gas generated from the upper plate; A carbon filter installed at the front of the exhaust fan to filter foreign substances contained in the inhaled harmful gas; And a gas discharge port formed at a rear surface of the exhaust fan to discharge filtered air.

At this time, the shelf door, the first door to block the storage space in which the laboratory or reagents are stored, and the first to prevent the dispersion of harmful gas sucked through the gas inlet formed in the front of the first door Preferably, the door is formed of a double door structure spaced apart from the door and configured to block the front surface of the gas inlet.

In addition, the independent upward exhaust means, a shelf exhaust portion for sucking and discharge the harmful gas from the front of the reagent shelf to the top of the upper plate;

At this time, the shelf exhaust unit,

Shelf suction port penetrating through the plate forming the reagent shelf to form a discharge passage for suctioning the harmful gas generated during the experiment from the lower portion of the reagent shelf to the upper portion; A shelf housing installed at an upper portion of the reagent shelf to collect harmful gas sucked through the shelf suction port; A shelf exhaust fan installed inside the shelf housing to generate a flow of air for sucking harmful gas through the shelf suction port; A shelf carbon filter installed on the front of the shelf exhaust fan to filter foreign substances contained in the harmful gas sucked into the shelf exhaust fan; And a shelf outlet formed at the rear of the shelf exhaust fan to discharge filtered air to the laboratory or the outside. And it is installed on the front of the shelf housing characterized in that it comprises an opening and closing door to block the rise of harmful gas to the upper portion of the experiment while opening and closing forward.

In addition, the present invention is installed on the top of the sink table, a dryer for supplying hot air by the operator's operation to enable rapid forced drying of the experimental instrument or the vibrating device, and water remaining inside the vibrating device of various shapes is natural Characterized in that it further comprises a drying means made of a choja drying rack that can be naturally dried by maintaining the upset mechanism upside down to be discharged.

According to the present invention, by installing an independent upward exhaust means capable of discharging harmful gas in each experiment table and operating independently, even when experiments are performed only in some experiment tables, harmful gases are not burdened with great inconvenience or waste of power. It can be discharged to maintain a clean laboratory environment.

In addition, the present invention is to install a reagent shelf equipped with a closed exhaust means on the shelf installed on the bench to provide maximum utilization of the limited space and the convenience of time and movement of the experimenter, while unpleasant from the reagent contained in the shelf Filtering and evacuating the odor has the effect of providing the comfort of the experimental space.

In addition, the present invention has a structure that can supply the inlet of the air from the bottom of the first shelf on the bench top in the installation of a reagent shelf equipped with a closed exhaust means, the effect of filtering and exhausting to the harmful gas generated in the experiment on the bench top There is.

1 is a front view of a test bench equipped with a sealed exhaust reagent rack and drying means according to the present invention.
Figure 2 is a side view of a test bench equipped with a closed exhaust type reagent shelf and drying means according to the present invention.
Figure 3 is a plan view of a test bench equipped with a closed exhaust type reagent shelf and drying means according to the present invention.
Figure 4 is a front view showing another embodiment of a test bench equipped with a closed exhaust reagent rack and drying means according to the present invention.
Figure 5 is a side view showing another embodiment of a test bench equipped with a closed exhaust type reagent shelf and drying means according to the present invention.
Figure 6 is a plan view showing another embodiment of a test bench equipped with a closed exhaust reagent rack and drying means according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

1 is a front view of a test bench equipped with a sealed exhaust reagent rack and a drying means according to the present invention, Figure 2 is a side view of a test bench equipped with a sealed exhaust reagent rack and a drying means according to the present invention, Figure 3 is It is a top view of a test bench equipped with a closed exhaust reagent rack and drying means.

1 to 3, the test bench provided with a closed exhaust type reagent shelf and a drying means according to the present invention, the experimental table 110 is installed on the top of the table frame to support the ground fixed to the table, Reagent shelf 200 is installed on top of the upper plate to store the experimental instruments or reagents, the sink table 300 is installed on one side of the upper plate and connected to a water supply facility for washing the laboratory instrument or the vitreous instrument, and the sink table Drying means 400 is installed on the top to enable natural drying and hot air drying, and an independent upward exhaust means 500 installed on the top of the upper plate and suctioning and discharging harmful gas to the upper side through the front of the reagent shelf. It is configured to include.

The test table 100 is a table frame 110 for supporting the test table at a predetermined height spaced from the ground while forming a basic structure of the lower table, and the upper plate of the plate shape 120 is installed on the top of the table frame and the experiment is performed It is composed of

At this time, the table frame 110 is configured to include a side frame for supporting the side of the experiment table, and the top frame is installed on the upper side of the frame to support the top plate, to form a basic frame of a typical experiment table.

In addition, the experiment table 100 may be configured such that the table frame and the top plate are placed on both sides of the sink table 300 as shown in Figure 1, of course, made of one table frame and the top plate The sink table 300 may be installed at one side of the experiment table 100.

In addition, the experiment table 100 may be configured using a wide top plate so that the reagent shelf is installed in the center and the experiment space is formed around the center as shown in FIGS. 2 and 3, as well as the reagent. Experimental space may be formed only on one side of the shelf.

The reagent shelf 200 is a shelf installed on the top of the upper plate 120 is formed with a storage space for storing the experimental instruments or reagents used during the experiment and can be easily taken out during the experiment, on both sides of the upper plate It may be configured with a vertically installed shelf pillar 210 and a plate 220 connecting between the shelf pillars to form a storage space.

At this time, the reagent shelf 200 is preferably formed by stacking a plurality of the plate 220 in a state spaced apart a predetermined distance to ensure more storage space. In addition, the reagent shelf 200 is preferably such that the lowermost plate 220 is formed at a predetermined distance from the upper plate so as to secure more experimental space on the upper plate.

In addition, the front surface of the plate forming the reagent shelf is preferably provided with a shelf door 230 that can be opened and closed by the operator, the shelf door may be made of a sliding door, but is not limited thereto.

The shelf door 230 prevents contamination of test equipment or reagents with foreign matters and prevents odor generated from the reagents stored in the reagent shelf from spreading to the entire laboratory.

In addition, when the independent upward exhaust means 500 is operated, the shelf door 230 is a odor generated from the harmful gas sucked from the upper plate of the bench or the reagent placed on the plate of the reagent shelf, that is, It is possible to form a suction passage which is sucked without being discharged to the front of the shelf door and discharged to the outside.

In addition, the shelf door 230 is the first door to block the storage space in which the test equipment or reagents are stored, and to prevent the dispersion of harmful gas sucked through the gas inlet formed in the front of the first door It may be formed as a double door structure consisting of a second door spaced apart from the first door to block the front surface of the reagent shelf.

The sink table 300 is formed on one side of the top plate, and consists of a conventional sink table provided with a water supply facility and a drainage system for washing an experimental apparatus or a vitreous apparatus.

The drying means 400 is installed on the top of the sink table 300 to minimize the movement of the washed laboratory apparatus or the vitreous instrument, and can be forced forced drying of the experimental instrument or the vitreous instrument by supplying hot air, etc. by the operator's operation. Dryer 410 is configured to include, and the ultra-dry drying rack 420 that can be naturally dried by maintaining the inverted device in a state in which the water remaining in the inside of the glass device of various shapes to be discharged naturally.

At this time, since the water flows down in the Choja Drying Rack, a dryer 410 operating by supply of electricity is installed on the upper portion, and the Choja Drying Rack 420 is installed on the lower portion thereof, and the drying means is installed in a layer structure. It is desirable to minimize the space.

The independent upward exhaust means 500 is a first embodiment in which the harmful gas generated during the experiment is sucked into the upper portion of the upper plate 120 and then discharged to the side of the experiment table 100, and the harmful gas is the upper plate 120. After the suction to the top of the) may be configured as a second embodiment to discharge the upper side of the experimental table (100).

The independent upward exhaust means is installed on the front of the reagent shelf to block the reagent shelf so that the odor generated from the reagents stored in the reagent shelf is not introduced into the laboratory, and the reagent is kept closed by the shelf door. Inhalation and discharge of the odor generated in the experiment and harmful gases generated during the experiment to form a closed exhaust type reagent shelf. At this time, the sealed exhaust in the present specification does not refer to a state in which air communication with the outside is completely blocked, but the odor generated from the reagents stored in the shelf can be stored in a closed state with the front of the shelf blocked. Is used to refer to a condition that makes it possible to prevent its spread from the natural state into the laboratory.

The first embodiment of the independent upward exhaust means will be described first with reference to FIGS. 1 to 3, and the second embodiment of the independent upward exhaust means is an experimental bench provided with a sealed exhaust reagent shelf and drying means according to the present invention. It will be described later with reference to Figures 4 to 6 showing another embodiment.

As shown in FIGS. 1 and 2, the first embodiment 500 of the independent upward exhaust means is installed separately for each experiment table 100 so as to immediately inhale harmful gases generated during the experiment. And the gas inlet 510 penetrating through the plate forming the reagent shelf to form a discharge passage for inhaling harmful gas from the bottom of the reagent shelf to the upper portion of the reagent shelf independently, and forming the shelf The exhaust fan 520 is installed on the side shelf pillar to generate power to suck the harmful gas generated from the upper plate, and the carbon filter 530 is installed in the front of the exhaust fan to filter foreign matter contained in the harmful gas sucked And a gas discharge port 540 formed at a rear surface of the exhaust fan to discharge filtered air.

At this time, the gas outlet 540 may be formed to just discharge the air filtered by the carbon filter 530 into the laboratory, as well as connected to the outside of the laboratory or the fume hood device by a separate duct to be discharged to the outside It may be configured to.

The gas suction port 510 is discharged from the plate 220 as shown in FIG. 2 so as to discharge the harmful gas through the plurality of stacked plates without being affected by the test apparatus or the reagent stored in the reagent shelf. It is preferable to penetrate to the side close to the area | region where an experiment is performed.

In addition, the gas suction port 510 may be formed at the same position of the stacked plates so as to stably form a path through which the harmful gas is discharged through the plurality of stacked plates 220.

The exhaust fan 530 is configured to form a flow of air that is installed on the top of the shelf pillars 210 forming both ends of the reagent shelf to suck the harmful gas generated in the upper plate 120 in which the experiment is performed. Accordingly, when the exhaust fan 530 is operated, as shown by the dotted arrows in FIG. 1, the non-circulating air discharged toward the gas outlet 540 formed in the column pillar while facing the upper portion of the upper plate 120. A stream is formed that allows the release of harmful gases.

At this time, when the shelf door forming the reagent shelf has a double door structure, a flow of air for sucking harmful gas is formed in the space between the first door and the second door to discharge the harmful gas.

In addition, the shelf door, in particular in the case of a double door structure can close the second door so that the flow of air by the exhaust fan is not obstructed, so that the suction in the portion adjacent to the top plate, of course, the shelf door By opening the not only the bottom of the plate, but also the front of the plate, that is, the suction of the harmful gas can be made in the front of the shelf.

As such, when the shelf door has a single door structure, the shelf door is closed to form a passage through which harmful gas or odor is sucked out. When the shelf door has a double door structure, the first door is opened and the second door is opened. By closing the door to form a passage through which harmful gases and odors are sucked and discharged, it is possible to easily discharge not only the harmful gases generated during the experiment but also the smell of the reagents discharged from the reagents stored in the reagent shelf. It can be prevented from remaining.

The independent upward exhaust means 500 is a shelf located on the outer side of each experiment table when the experiment table is installed on both sides of the sink table is installed in the center as shown in Figure 1 and 3, respectively Exhaust fan is installed in the column, the gas outlet is formed, it is preferable to install a drying means inside the test table. Accordingly, in FIG. 1, the flow of air is shown only in the experiment table located on the right side, but the flow of air for the discharge of harmful gas is also made in the experiment table located on the left side.

In addition, a second embodiment of the independent upward exhaust means as shown in Figures 4 to 6, the shelf exhaust portion further includes a shelf housing for sucking and discharge the harmful gas to the upper portion of the upper plate from the front of the reagent shelf It is composed.

In this case, in the second embodiment of the independent upward exhaust means, as shown in FIG. 4, unlike the first embodiment in which the harmful gas sucked from the test bench is discharged to the side through the shelf column, the path of the harmful gas sucked up. By discharging to the upper side without change, it is possible to inhale and discharge the harmful gas generated during the experiment with stronger suction power.

The shelf exhaust unit 600 is a shelf suction port 610 formed through the plate forming the reagent shelf to form a discharge passage for suctioning the harmful gas generated during the experiment from the lower portion of the reagent shelf to the top, and the reagent shelf Shelf housing 620 is installed in the upper portion of the shelf housing to collect the harmful gas sucked through the shelf suction port, the shelf exhaust fan is installed inside the shelf housing to generate a flow of air to suck the harmful gas through the shelf suction port 630, a shelf carbon filter 640 for filtering foreign matter contained in the harmful gas sucked installed in the front of the shelf exhaust fan and the filtered air formed in the rear of the shelf exhaust fan in the laboratory or outside Shelf discharge port 650 for discharging to and is installed in the front of the shelf housing while opening and closing the front while blocking the rise of harmful gas to the upper table It is configured to include an opening and closing door 660 to induce suction into the shelf housing.

At this time, the shelf exhaust portion 600 is a shelf housing 620 is installed in the upper portion of the reagent shelf so that the flow of air to suck the harmful gas is formed vertically to the upper plate, and vertically to the upper portion of the upper plate The shelf exhaust fan 630 is installed at a vertical upper portion of the shelf housing 620 to form and filter a suction path of the harmful gas to be sucked, and the shelf carbon filter is disposed on a bottom surface of the shelf housing 620 that is the front surface of the shelf exhaust fan 630. Except for the fact that the installation position is changed so that the 640 is installed, the same description as that of the first embodiment of the independent upward exhaust means is omitted.

In addition, the opening / closing door 660 is opened toward the front when the harmful gas is inhaled, that is, toward the vertical upper portion of the upper surface of the bench where the experiment is performed, thereby preventing the harmful gas from spreading naturally to the upper portion of the bench. This allows for the inhalation of harmful gases, allowing more complete capture of harmful gases emitted during experiments.

In this way, by installing an independent upward exhaust means capable of discharging the noxious gas in each test table and operating it independently, even if the experiment is performed only in some test tables, the noxious gas is discharged without the inconvenience or waste of power. You can do it.

In addition, the location of the experimenter in the experiment table of the structure that can be minimized the impact of the independent upward exhaust means on the area where the experiment is performed, that is, the experimental bench facing the experiment, the structure of the experiment alone It is installed at the furthest distance from to minimize the direct effect of the flow of air for the inhalation of harmful gases on the experiment.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

100-Experiment Table 110-Table Frame
120-Top 200-Reagent Shelf
210-Shelf Column 220-Plate
230-Shelf door 300-Sink table
400-Drying Method 410-Dryer
420-Ultrasonic Dryer 500-Independent Upstream Vent
510-Gas Inlet 520-Exhaust Fan
530-Carbon Filter 540-Gas Outlet
600-Shelf exhaust 610-Shelf suction
620-Shelf Housing 630-Shelf Exhaust Fans
640-Shelf Carbon Filter 650-Shelf Outlet
660-opening and closing door

Claims (6)

delete delete In the experiment table,
An experiment table on which an upper plate on which an experiment is performed is fixed on an upper portion of a table frame supporting a ground;
Installed on top of the top plate to store the experimental instruments and reagents, the shelf pillars installed vertically on both sides of the upper plate, a plate connecting between the shelf pillars to form a storage space, and the front of the plate A reagent shelf installed on the shelf door to be opened and closed by an operator;
A sink table installed at one side of the upper plate and connected to a water supply facility for washing an experiment apparatus or a vitreous apparatus; And
It is installed on the top of the upper plate and comprises an independent upward exhaust means for inhaling and discharge the harmful gas to the upper through the front of the reagent shelf;
The independent upward exhaust means,
A gas suction hole formed through the plate forming the reagent shelf to form a discharge passage for sucking harmful gas from the lower portion of the reagent shelf to the upper portion;
An exhaust fan installed on one side of the shelf pillar forming the shelf to generate power for sucking harmful gas generated from the upper plate;
A carbon filter installed at the front of the exhaust fan to filter foreign substances contained in the inhaled harmful gas; And
A gas outlet formed at a rear surface of the exhaust fan to discharge filtered air;
The shelf door,
The first door to block the storage space for storing the test equipment or reagent, and the gas is spaced from the first door to prevent the dispersion of harmful gas sucked through the gas inlet formed in the front of the first door Experimental table provided with a closed exhaust type reagent rack and drying means, characterized in that the double door structure consisting of a second door blocking the front surface. delete In the experiment table,
An experiment table on which an upper plate on which an experiment is performed is fixed on an upper portion of a table frame supporting a ground;
Installed on top of the top plate to store the experimental instruments and reagents, the shelf pillars installed vertically on both sides of the upper plate, a plate connecting between the shelf pillars to form a storage space, and the front of the plate A reagent shelf installed on the shelf door to be opened and closed by an operator;
A sink table installed at one side of the upper plate and connected to a water supply facility for washing an experiment apparatus or a vitreous apparatus; And
It is installed on the top of the upper plate and comprises an independent upward exhaust means for inhaling and discharge the harmful gas to the upper through the front of the reagent shelf;
The independent upward exhaust means is composed of a shelf exhaust portion for inhaling and discharging harmful gas from the front of the reagent shelf to the top of the upper plate;
The shelf exhaust portion,
Shelf suction port penetrating through the plate forming the reagent shelf to form a discharge passage for suctioning the harmful gas generated during the experiment from the lower portion of the reagent shelf to the upper portion;
A shelf housing installed at an upper portion of the reagent shelf to collect harmful gas sucked through the shelf suction port;
A shelf exhaust fan installed inside the shelf housing to generate a flow of air for sucking harmful gas through the shelf suction port;
A shelf carbon filter installed on the front of the shelf exhaust fan to filter foreign substances contained in the harmful gas sucked into the shelf exhaust fan;
A shelf outlet formed at a rear side of the shelf exhaust fan to discharge filtered air to a laboratory or the outside; And
It is installed on the front of the shelf housing and is configured to include an opening and closing door to block the rise of harmful gas to the upper portion of the experimental table while opening and closing forward;
The shelf door,
The first door to block the storage space in which the test equipment or reagents are stored, and spaced apart from the first door to prevent the dispersion of harmful gas sucked through the shelf suction opening formed in the front of the first door Experimental table provided with a closed exhaust type reagent rack and drying means, characterized in that the double door structure consisting of a second door blocking the front surface. The method according to claim 3 or 5,
It is installed on the top of the sink table, a dryer for supplying hot air by the operator's operation to enable rapid forced drying of the experiment apparatus or the vibrating instrument, and the vitreous to allow the water remaining inside the vibrating apparatus of various shapes to be naturally discharged An experimental bench provided with a closed exhaust type reagent rack and drying means, characterized in that it further comprises a drying means made of a vitreous drying rack capable of naturally drying by holding the apparatus upside down.

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