CN106914466B - Comprehensive fume hood for laboratory - Google Patents

Comprehensive fume hood for laboratory Download PDF

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Publication number
CN106914466B
CN106914466B CN201710206384.6A CN201710206384A CN106914466B CN 106914466 B CN106914466 B CN 106914466B CN 201710206384 A CN201710206384 A CN 201710206384A CN 106914466 B CN106914466 B CN 106914466B
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frame
small article
instrument
plate
small
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CN106914466A (en
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张卫兵
肖洪平
陈久喜
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Wenzhou University
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Wenzhou University
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B15/02Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
    • B08B15/023Fume cabinets or cupboards, e.g. for laboratories

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  • Devices For Use In Laboratory Experiments (AREA)

Abstract

The invention discloses a comprehensive ventilation cabinet for a laboratory, which comprises an upper cabinet body and a lower cabinet body, wherein the top of the upper cabinet body is provided with an exhaust hood communicated with the inner cavity of the upper cabinet body, the bottom surface of the upper cabinet body is a workbench, the upper cabinet body comprises four main frame columns fixed at four corners of the workbench, a left transparent glass plate, a right transparent glass plate, a rear transparent glass plate and a front transparent glass plate are fixed on the main frame columns, the lower cabinet body comprises a negative pressure cabinet for storing a negative pressure machine, and a negative pressure suction pipe of which the inner end is connected to a negative pressure connecting pipe of the negative pressure machine in the negative pressure cabinet is arranged on the workbench; the invention has the advantages of reasonable structural design, good integral visual light transmittance and convenience for operating and placing experimental instruments.

Description

Comprehensive fume hood for laboratory
Technical Field
The invention relates to a comprehensive fume hood for a laboratory.
Background
Fume hoods are an integral part of laboratory ventilation design. The fume hood mainly has an exhaust function, various harmful gases, odor, moisture and flammable, explosive and corrosive substances are generated in the experiment operation in a chemical laboratory, and the fume hood is used near a pollution source in order to protect the safety of a user and prevent the diffusion of the pollutants in the experiment to the laboratory.
However, in the prior art, as disclosed in chinese patent publication No. CN 203343152U, a laboratory ventilation cabinet structurally includes a cabinet body, the cabinet body includes an upper layer and a lower layer, the upper layer is a workbench, an air outlet and a condensate water collecting tank are installed at the top of the workbench, a window explosion-proof glass door is disposed on the front surface of the workbench, a plastic slide rail is disposed on a side edge of the window explosion-proof glass door, a sliding member is disposed on an edge of the window explosion-proof glass door, the sliding member is slidably disposed on the plastic slide rail, and a detachable upper sealing cover is disposed at an upper end of the window explosion-proof glass door; the lower layer is provided with a storage cabinet which can move back and forth relative to the cabinet body.
The problems with this configuration are:
(1) only the front of workstation is provided with the explosion-proof glass door of window, consequently, wholly sees the fume chamber still can not the printing opacity, and the laboratory often space is more limited, and a plurality of opaque fume chambers arrange side by side, can make the whole daylighting in laboratory not good.
(2) The workbench is unreasonable in arrangement, and a fixing device for the color comparison card is lacked, so that students can randomly stick the color comparison card in the experiment process, the field attractiveness of a laboratory is poor, the problem that the color comparison card is lost frequently occurs, and the use is inconvenient;
(3) small articles such as a medicine spoon, a dropper, a glass rod, tweezers, a thermometer and a test tube clamp are usually directly plugged into a cabinet of a ventilation cabinet, and need to be found from the cabinet when the small articles need to be used, so that the small articles are troublesome, and in the experimental process, the small articles are randomly placed on a test bed, so that the tidiness of the test bed is influenced, and the small articles are easily mistakenly bumped and fall on the ground.
(4) Glass instruments (such as beakers, alcohol lamps, measuring cylinders, burettes, pipettes and the like) are mixed in a cabinet of a ventilation cabinet, so that the glass instruments are easy to break and are not easy to take.
(5) Need use the negative pressure machine at chemical experiment (like suction filtration), the student when the experiment, needs additionally carry the negative pressure machine to the workstation of fume chamber on experiment, uses inconveniently.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a comprehensive fume hood for a laboratory, which has the advantages of reasonable structural design, good integral visual light transmittance and convenience for operating and placing experimental instruments.
In order to achieve the purpose, the technical scheme of the invention is that the multifunctional wardrobe comprises an upper wardrobe body and a lower wardrobe body, wherein the top of the upper wardrobe body is provided with an exhaust hood communicated with the inner cavity of the upper wardrobe body, the bottom surface of the upper wardrobe body is a workbench,
the upper cabinet body comprises four main frame columns fixed at four corners of the workbench, a left light-transmitting glass plate is arranged between two main frame columns positioned on the left side of the workbench, and a right light-transmitting glass plate is arranged between two main frame columns positioned on the right side of the workbench;
a rear-side light-transmitting glass plate is connected and arranged at the upper half part between the two main frame columns at the rear side of the workbench, an opening area below the rear-side light-transmitting glass plate between the two main frame columns at the rear side of the workbench forms a rear-side experimental operation position, a rear-side inner guide rail is arranged at the outer ends of the two main frame columns at the rear side of the workbench relative to the rear-side light-transmitting glass plate, and a rear-side light-transmitting glass door used for sealing the rear-side experimental operation position in a descending closing state is arranged on the rear-side inner guide rail in a sliding manner;
the upper half part between the two main frame columns at the front side of the workbench is provided with a front side light-transmitting glass plate in a connecting way, an opening area below the front side light-transmitting glass plate between the two main frame columns at the front side of the workbench forms a front side experiment operation position, the outer ends of the two main frame columns at the front side of the workbench, which are opposite to the front side light-transmitting glass plate, are provided with a front side inner guide rail, and a rear side light-transmitting glass door used for sealing the front side experiment operation position in a descending closing state is arranged on the front side inner guide rail in a sliding way;
the lower cabinet body comprises a negative pressure cabinet for storing a negative pressure machine, and a negative pressure suction pipe with the inner end connected to a negative pressure connecting pipe of the negative pressure machine in the negative pressure cabinet is arranged on the workbench;
the color comparison card frame comprises a color comparison card frame body and a color comparison card frame used for fixing the color comparison card frame body, the color comparison card frame body comprises a transparent color comparison card surface cover, a plurality of transparent color comparison card pocket plates are fixedly arranged on the back surface of the color comparison card surface cover, and a color comparison card inserting pocket used for inserting a color comparison card is arranged between the color comparison card pocket plates and the color comparison card surface cover;
the small article frame comprises a small article frame body frame and a small article frame used for fixing the small article frame body, wherein the small article frame body comprises a small article frame back plate, a small article frame panel, a small article frame left side plate and a small article frame right side plate which enclose a small article frame body frame, a plurality of small article frame grating plates are arranged in the small article frame body frame in parallel at intervals, the small article frame grating plates divide the inner space of the small article frame body frame into a plurality of small article slots, the bottom of the small article frame body frame corresponding to the small article slots is provided with an opening, the two sides below the bottom of the small article frame body frame are provided with small article frame lower limiting battens, and small article frame bottom plate slots are arranged between the bottom of the small article frame body frame and the small article frame lower limiting battens, a small article rack bottom plate is detachably inserted and fixed in the small article rack bottom plate inserting groove, and the small article rack bottom plate seals the bottom opening of the small article inserting groove;
the lower cabinet body also comprises an instrument cabinet body, an instrument frame is arranged in an inner cavity of the instrument cabinet body, the instrument frame comprises an instrument frame bottom plate, a first instrument frame side plate and a second instrument frame side plate which are parallelly erected on the instrument frame bottom plate at intervals, and an instrument frame top plate which is fixed above the first instrument frame side plate and the second instrument frame side plate and is parallel to the bottom plate, a plurality of instrument frame step plates which are distributed in a step shape are arranged between the first instrument frame side plate and the second instrument frame side plate, circular fixing insertion holes which are communicated up and down are formed in the instrument step plates, positioning columns are arranged on the instrument frame bottom plate, one side edge of the instrument frame top plate protrudes out of the first instrument frame side plate, a plurality of measuring cylinder positioning holes are formed in one side edge of the instrument frame top plate, each measuring cylinder positioning hole comprises a first measuring cylinder positioning hole and a second measuring cylinder positioning hole, first graduated flask locating hole including first rectangle open slot and connect in the inside first semicircular groove of first rectangle open slot, the diameter of first semicircular groove sets up with the width of first rectangle open slot is unanimous, second graduated flask locating hole including second rectangle open slot and connect in the inside second semicircular groove of second rectangle open slot, the diameter of second semicircular groove with be greater than the width setting of second rectangle open slot, the interior roof of the instrument cabinet body on be provided with the pipette rack, the pipette rack including two at least link plates that set up along the degree of depth direction interval of the cabinet body, be provided with the arc open slot that arc downwardly extending fluting set up on this link plate.
The colorimetric card frame comprises a colorimetric card frame bottom frame body and colorimetric card frame side frame bodies which are symmetrically connected to the two sides of the colorimetric card frame bottom frame body respectively, colorimetric card frame vertical rail grooves are formed in the upper parts of the inner walls of the two colorimetric card frame side frame bodies, colorimetric card frame side frame bodies are provided with colorimetric card frame limiting steps relative to the bottoms of the colorimetric card frame vertical rail grooves on the colorimetric card frame side frame bodies, colorimetric card frame side lug plates which are matched with the colorimetric card frame vertical rail grooves in length in a sliding mode are arranged on the two sides of the colorimetric card frame surface cover, and the bottom surfaces of the colorimetric card frame side lug plates are in limiting fit with the colorimetric card frame limiting steps;
a colorimetric card frame bottom groove for embedding the bottom of the colorimetric card surface cover is arranged in the colorimetric card frame bottom frame body, a colorimetric card frame buffer cushion is arranged in the colorimetric card frame bottom groove, the upper end of the colorimetric card inserting pocket is arranged in an opening mode, and a semicircular notch groove is formed in the center of the upper end of the colorimetric card pocket plate;
the color comparison card surface cover and the color comparison card pocket plate are both made of organic transparent glass.
The small object frame comprises a small object frame back connecting plate and small object frame side frame bodies which are symmetrically connected to the left side and the right side of the small object frame back connecting plate respectively, the upper parts of the inner walls of the two small object frame side frame bodies are provided with small object frame vertical rail grooves, the small object frame side frame bodies are provided with small object frame limiting steps relative to the bottoms of the small object frame vertical rail grooves on the small object frame side frame bodies, the two sides of the small object frame body frame are provided with small object frame side lug plates which are matched with the small object frame vertical rail grooves in length and are in sliding insertion fit, and the bottom surfaces of the small object frame side lug plates are in limiting fit with the small object frame limiting steps; a small article frame buffer cushion is arranged above the small article frame side frame body relative to the small article frame limiting step; a small article frame panel notch groove is formed in one side of the upper edge of the small article frame panel of the small article frame, and the length of the small article frame grating plate corresponding to the small article frame panel notch groove corresponds to the length of the small article frame panel on the side, opposite to the small article frame panel notch groove, of the small article frame; the small article rack back plate is provided with a rectangular small article rack drain hole;
the frame body of the small object rack is made of organic transparent glass.
The further setting is that the instrument frame is formed by acrylic glass splicing fixedly, the left and right sides of the inner top wall of the instrument cabinet body all be provided with a set of pipette rack, the outside of the first curb plate of instrument frame be provided with instrument frame side link plate, a plurality of graduated flask locating holes have been seted up on this instrument frame side link plate.
The invention has the advantages that:
(1) the four surfaces of the upper cabinet body are designed into a light-transmitting structure, so that the light-transmitting property is good, and the whole lighting property of a laboratory is maintained;
(2) the negative pressure suction tube is directly arranged on the workbench, so that students can conveniently and directly perform tests such as suction filtration and the like, and a negative pressure machine does not need to be carried in the test process, so that the test is efficient and convenient;
(3) the color comparison card holder is arranged to collect different color comparison cards and insert the color comparison cards into the color comparison card insertion pocket, and the color comparison card insertion pocket is positioned on the back surface of the surface cover, so that the color comparison cards are not easy to take and place by students at will, and in the color comparison operation, the color comparison of the students is facilitated by the patterns of the color comparison cards through the surface cover, and in the color comparison operation, the color comparison cards can be effectively prevented from being mistakenly operated by the students, so that the color comparison cards are prevented from being polluted by reagents on the color comparison cards, and the experimental efficiency is improved; the color cards are centrally arranged to solve the problem of disorder sticking, so that the laboratory environment is neat and beautiful;
(4) the small object rack is arranged, the problem of arrangement of small objects in experimental operation is solved, the small instruments are centralized on the same rack to be managed, the small instruments are clear at a glance, the small instruments can be taken and used very conveniently in the using process, the small instruments are not needed to be turned over and found in a cabinet in an experiment, the small objects can be placed back to the rack to be dried in order after being used, the small object rack in a laboratory is made into a movable structure, and the small objects can be taken down for washing at any time to keep the small objects clean and tidy.
(5) Set up the instrument cabinet, design into different position shapes according to characteristic separately the glass instrument that uses in the student's experiment, the several layers are placed after the experiment, and is surveyable, conveniently takes, and the student experiment back is put the instrument of the sanitization and is dried naturally on the glass instrument frame of relevant position to supply next use, the mistake is fallen well, and space utilization is high.
The invention is further described with reference to the drawings and the detailed description.
Drawings
FIG. 1 is a perspective view of an embodiment of the present invention;
FIG. 2 is a perspective view from another perspective of an embodiment of the present invention;
FIG. 3 is a perspective view of an embodiment of a colorimetric card holder of the present invention;
FIG. 4 is a perspective view of another perspective of a colorimetric card holder of the present invention;
FIG. 5 is a bottom view of a colorimetric card holder of the present invention;
FIG. 6 is a cross-sectional view A-A of FIG. 5;
FIG. 7 is an exploded view of a colorimetric card holder according to the present invention;
FIG. 8 is a schematic structural view of an embodiment of a small object holder according to the present invention;
FIG. 9 is a top view of an embodiment of the small object holder of the present invention;
FIG. 10 is a sectional view taken along line A-A of FIG. 9;
FIG. 11 is an exploded view of the small object holder of the present invention;
FIG. 12 is a partial exploded view of the small object holder of the present invention from another perspective;
FIG. 13 is a perspective view of an embodiment of the instrument cabinet of the present invention;
FIG. 14 is an exploded view of an embodiment of the instrument cabinet of the present invention;
FIG. 15 is a perspective view of an instrument holder of the instrument cabinet of the present invention;
fig. 16 is a perspective view of an alternate view of an instrument holder of the instrument cluster of the present invention.
Detailed Description
The invention is described in detail below with reference to examples, which are intended to be illustrative only and not to be construed as limiting the scope of the invention, and many insubstantial modifications and variations of the invention can be made by an engineer skilled in the art based on the teachings of the invention.
As shown in fig. 1-2, the embodiment of the present invention comprises an upper cabinet 1 and a lower cabinet 2, wherein the top of the upper cabinet 1 is provided with an exhaust hood 3 communicated with the inner cavity of the upper cabinet, the bottom surface of the upper cabinet 1 is a workbench 4, the upper cabinet 1 comprises four main frame columns 11 fixed at four corners of the workbench, a left transparent glass plate 12 is arranged between two main frame columns on the left side of the workbench, and a right transparent glass plate 13 is arranged between two main frame columns on the right side of the workbench; the upper half part between the two main frame columns on the rear side of the workbench is connected with a rear-side transparent glass plate (not shown in the figure, which is symmetrically arranged with the rear-side transparent glass plate in the front-back direction), an opening area below the rear-side transparent glass plate between the two main frame columns on the rear side of the workbench forms a rear-side experimental operation position (not shown in the figure, which is symmetrically arranged with the front-side transparent glass plate in the front-back direction), the outer ends of the two main frame columns on the rear side of the workbench, relative to the rear-side transparent glass plate, are provided with rear-side inner guide rails (not shown in the figure, which are symmetrically arranged with the front-side inner guide rails in the front-back direction), and the rear-side transparent glass door (not shown in the figure, which is symmetrically arranged with the front-side transparent glass door in the front-back direction) is arranged on the rear-side inner guide rails in a sliding manner and used for sealing the rear-side experimental operation position in a descending closing state.
In this embodiment, the front transparent glass plate 15 is connected to the upper half portion between the two main frame columns on the front side of the workbench, the opening region below the front transparent glass plate between the two main frame columns on the front side of the workbench constitutes the front experimental operation position 151, the outer ends of the two main frame columns on the front side of the workbench, which are opposite to the front transparent glass plate, are provided with front inner guide rails 152, and rear transparent glass doors 153 used for closing the front experimental operation position in a descending closing state are slidably arranged on the front inner guide rails.
In addition, the lower cabinet body 2 described in this embodiment includes a negative pressure cabinet 21 for storing a negative pressure machine, and the work table 4 is provided with a negative pressure suction tube 41 whose inner end is connected to a negative pressure connection tube of the negative pressure machine in the negative pressure cabinet 21.
As shown in fig. 1-7, still including being fixed in the color comparison card frame 5 on the inner wall of left side printing opacity glass board 12, the color comparison card frame includes color comparison card support 51 and the color comparison card frame 52 that is used for fixed color comparison card support, color comparison card support 51 including transparent color comparison card face lid 511, the fixed a plurality of transparent color comparison card pocket boards 512 that are provided with in back of color comparison card face lid 511, color comparison card pocket board 512 and color comparison card face lid 511 between be provided with the color comparison card that is used for the color comparison card to insert the establishment and insert pocket 5121, this embodiment color comparison card face lid 511 and color comparison card pocket board 512 be organic transparent glass and make. In addition, a plurality of color comparison card pocket board 512 described in this embodiment can be formed by a holistic organic glass board and separated with separation rib 5122, and fixed through the glass cement between color comparison card pocket board 512 and the color comparison card face lid. In addition, the colorimetric card frame 52 of this embodiment includes a colorimetric card frame bottom frame 521 and colorimetric card frame side frames 522 respectively and symmetrically coupled to two sides of the colorimetric card frame bottom frame, the upper portions of the inner walls of the two colorimetric card frame side frames 522 are provided with colorimetric card frame vertical rail grooves 5221, the bottom of the colorimetric card frame side frame 522, which is opposite to the colorimetric card frame vertical rail grooves thereon, is provided with colorimetric card frame limiting steps 5222, two sides of the colorimetric card surface cover 511 are provided with colorimetric card frame side lug plates 5111 which are adapted to the colorimetric card frame vertical rail grooves 5221 in length and slidably engaged, and the bottom surfaces of the colorimetric card frame side lug plates 5111 are in limiting engagement with the colorimetric card frame limiting steps 5222.
In addition, a colorimetric card holder bottom groove 5211 for inserting the bottom of the colorimetric card surface cover 11 is provided in the colorimetric card holder bottom frame 521 according to this embodiment, and a colorimetric card holder buffer pad 5212 is provided in the colorimetric card holder bottom groove 5211. The colorimetric card holder buffer 5212 of this embodiment is preferably made of teflon gasket or eva foam sheet.
Preferably, the colorimetric card insertion pocket 512 according to this embodiment is provided with an opening at the upper end, and a semicircular notch 5123 is provided at the center of the upper end of the colorimetric card pocket plate.
As shown in fig. 1-2 and 8-12, the present embodiment further includes a small object shelf 6 fixed on the inner wall of the right transparent glass plate 13, the small object shelf 6 includes a small object shelf 61 and a small object frame 62 for fixing the small object shelf, the small object shelf 61 includes a small object shelf frame surrounded by a small object shelf back plate 611, a small object shelf panel 612, a small object shelf left side plate 613 and a small object shelf right side plate 614, a plurality of small object shelf grid plates 615 are arranged in parallel and at intervals in the frame, the small object shelf grid plates 615 divide the inner space of the small object shelf frame into a plurality of small object slots 616, the small object slots 616 facilitate the placement of small objects such as a medicine spoon, a dropper, a glass rod, tweezers, a thermometer, a test tube clamp, etc., the bottom of the small object shelf frame corresponding to the small object slots 616 is provided with an opening, and small shelf lower limit strips 617 are arranged on two sides below the bottom of the small object shelf frame, a small article shelf board slot 618 is arranged between the bottom surface of the small article shelf frame body frame and the small article shelf lower limiting lath, a small article shelf bottom board 619 is detachably inserted and fixed in the small article shelf bottom board slot 618, and the small article shelf bottom board 619 seals the bottom opening of the small article slot 616.
In addition, the small object frame 62 of this embodiment includes a small object frame back connection board 621 and small object frame side frame bodies 622 symmetrically connected to the left and right sides of the small object frame back connection board, the upper parts of the inner walls of the two small object frame side frame bodies 622 are provided with small object frame vertical rail grooves 623, the bottoms of the small object frame side frame bodies 622 corresponding to the small object frame vertical rail grooves 623 thereon are provided with small object frame limiting steps 624, two sides of the small article rack frame are provided with small article rack side lug plates 6111 which are matched with the length of the small article rack vertical rail groove 623 in a sliding and inserting way, the bottom surface of the small article frame side lug plate 6111 is in limit fit with the small article frame limit step 624, in addition, a small article frame buffer pad 625 is disposed above the small article frame side frame body 622 relative to the small article frame limit step 624.
In addition, a small rack panel notch groove 6121 is disposed on one side of the upper edge of the small rack panel 612, and the length of the small rack grid plate at the corresponding position of the small rack panel notch groove corresponds to the length of the panel at the side of the small rack frame corresponding to the small rack panel notch groove 6121. Through this setting, conveniently put some short little articles of length.
In addition, a rectangular small rack drainage hole 6112 is arranged on the small rack back plate 611 of the embodiment. The cleaning is convenient and the draining is rapid.
In addition, the small article rack body frame, the small article rack side lug plate 6111 and the small article rack frame of the present embodiment are all made of organic transparent glass.
As shown in fig. 1-2 and 13-16, the lower cabinet body 2 of this embodiment further includes an instrument cabinet 7, the instrument cabinet further includes an instrument cabinet body 71, an instrument holder 72 is disposed in an inner cavity of the instrument cabinet body, the instrument holder 72 includes an instrument holder bottom plate 721, a first side plate 722 and a second side plate 723 of the instrument holder which are parallel and spaced from each other and are erected on the instrument holder bottom plate, and an instrument holder top plate 724 which is fixed above the first side plate 722 of the instrument holder and the second side plate 723 of the instrument holder and is parallel to the bottom plate, a plurality of instrument holder step plates 725 are disposed between the first side plate 722 of the instrument holder and the second side plate 723 of the instrument holder, circular fixing insertion holes 7251 which are vertically through are formed in the instrument holder step plate 725, when the circular fixing insertion holes 7251 are specifically disposed, circular fixing insertion holes 7251 with different diameters can be disposed, so as to be convenient for placing the apparatuses such as beakers or alcohol lamps with different diameters.
In addition, instrument frame bottom plate 721 on be provided with a plurality of cylindric reference columns 7211, this cylindric reference column 7211 can conveniently invert the instrument that has open structure such as beaker and overlap and fix a position on cylindric reference column 7211 and put, in addition, one side protrusion of instrument frame roof 724 outside the first curb plate of instrument frame, seted up a plurality of graduated flask locating holes on one side of this instrument frame roof, the graduated flask locating hole is including first graduated flask locating hole 7241 and second graduated flask locating hole 7242, the graduated flask of the first graduated flask locating hole 7241 of this embodiment, second graduated flask locating hole 7242 make things convenient for the different specifications to invert puts, in addition, also can be applicable to inverting of volumetric flask and put. Preferably, the first measuring cylinder positioning hole 7241 includes a first rectangular opening groove and a first semicircular groove connected to the inside of the first rectangular opening groove, the diameter of the first semicircular groove is consistent with the width of the first rectangular opening groove, the second measuring cylinder positioning hole 7242 includes a second rectangular opening groove and a second semicircular groove connected to the inside of the second rectangular opening groove, and the diameter of the second semicircular groove is larger than the width of the second rectangular opening groove. In addition, an instrument holder side coupling plate 7221 is arranged on the outer side of the instrument holder first side plate 722, and a plurality of first measuring cylinder positioning holes 7241 are formed in the instrument holder coupling plate.
The instrument cabinet body 71 of this embodiment on be provided with pipette rack 711 on the interior roof, pipette rack including along the at least two link plate 7111 of the depth direction interval setting of the cabinet body, be provided with the arc open slot 7112 that the fluting that extends downwards of arc set up on this link plate. This pipet stand 711 can also be applicable to simultaneously that the equal length of glass stick or burette is long strip instrument is put, the left and right sides of the interior roof of cabinet body 71 all be provided with a set of pipet stand 711.

Claims (2)

1. The utility model provides a laboratory is with synthesizing fume chamber, is including last cabinet body and lower cabinet body, the top of going up the cabinet body be provided with the communicating exhaust hood of last cabinet body inner chamber, the bottom surface of going up the cabinet body be workstation, its characterized in that:
the upper cabinet body comprises four main frame columns fixed at four corners of the workbench, a left light-transmitting glass plate is arranged between two main frame columns positioned on the left side of the workbench, and a right light-transmitting glass plate is arranged between two main frame columns positioned on the right side of the workbench;
a rear-side light-transmitting glass plate is connected and arranged at the upper half part between the two main frame columns at the rear side of the workbench, an opening area below the rear-side light-transmitting glass plate between the two main frame columns at the rear side of the workbench forms a rear-side experimental operation position, a rear-side inner guide rail is arranged at the outer ends of the two main frame columns at the rear side of the workbench relative to the rear-side light-transmitting glass plate, and a rear-side light-transmitting glass door used for sealing the rear-side experimental operation position in a descending closing state is arranged on the rear-side inner guide rail in a sliding manner;
the upper half part between the two main frame columns at the front side of the workbench is provided with a front side light-transmitting glass plate in a connecting way, an opening area below the front side light-transmitting glass plate between the two main frame columns at the front side of the workbench forms a front side experiment operation position, the outer ends of the two main frame columns at the front side of the workbench, which are opposite to the front side light-transmitting glass plate, are provided with a front side inner guide rail, and a rear side light-transmitting glass door used for sealing the front side experiment operation position in a descending closing state is arranged on the front side inner guide rail in a sliding way;
the lower cabinet body comprises a negative pressure cabinet for storing a negative pressure machine, and a negative pressure suction pipe with the inner end connected to a negative pressure connecting pipe of the negative pressure machine in the negative pressure cabinet is arranged on the workbench;
the color comparison card frame comprises a color comparison card frame body and a color comparison card frame used for fixing the color comparison card frame body, the color comparison card frame body comprises a transparent color comparison card surface cover, the back surface of the color comparison card surface cover is fixedly provided with a plurality of transparent color comparison card pocket plates, and a color comparison card inserting pocket used for inserting a color comparison card is arranged between the color comparison card pocket plates and the color comparison card surface cover;
the small article frame comprises a small article frame body frame and a small article frame used for fixing the small article frame body, wherein the small article frame body comprises a small article frame back plate, a small article frame panel, a small article frame left side plate and a small article frame right side plate which enclose a small article frame body frame, a plurality of small article frame grating plates are arranged in the small article frame body frame in parallel at intervals, the small article frame grating plates divide the inner space of the small article frame body frame into a plurality of small article slots, the bottom of the small article frame body frame corresponding to the small article slots is provided with an opening, the two sides below the bottom of the small article frame body frame are provided with small article frame lower limiting battens, and small article frame bottom plate slots are arranged between the bottom of the small article frame body frame and the small article frame lower limiting battens, a small article rack bottom plate is detachably inserted and fixed in the small article rack bottom plate inserting groove, and the small article rack bottom plate seals the bottom opening of the small article inserting groove;
the lower cabinet body further comprises an instrument cabinet body, the instrument cabinet body further comprises an instrument cabinet body, an instrument frame is arranged in an inner cavity of the instrument cabinet body, the instrument frame comprises an instrument frame bottom plate, a first instrument frame side plate and a second instrument frame side plate which are parallelly and alternately erected on the instrument frame bottom plate, and an instrument frame top plate which is fixed above the first instrument frame side plate and the second instrument frame side plate and is parallel to the bottom plate, a plurality of instrument frame step plates which are distributed in a step shape are arranged between the first instrument frame side plate and the second instrument frame side plate, circular fixing insertion holes which are communicated from top to bottom are formed in the instrument step plates, cylindrical positioning columns are arranged on the instrument frame bottom plate, one side edge of the instrument frame top plate protrudes out of the first instrument frame side plate, a plurality of measuring cylinder positioning holes are formed in one side edge of the instrument frame top plate, and each measuring cylinder positioning hole comprises a first measuring cylinder positioning hole and a second measuring cylinder positioning hole, the first measuring cylinder positioning hole comprises a first rectangular open slot and a first semicircular slot connected inside the first rectangular open slot, the diameter of the first semicircular slot is consistent with the width of the first rectangular open slot, the second measuring cylinder positioning hole comprises a second rectangular open slot and a second semicircular slot connected inside the second rectangular open slot, the diameter of the second semicircular slot is larger than the width of the second rectangular open slot, a pipette rack is arranged on the inner top wall of the instrument cabinet body, the pipette rack comprises at least two hanging plates arranged at intervals along the depth direction of the cabinet body, and arc-shaped open slots formed by arc-shaped downward extending slots are arranged on the hanging plates;
the colorimetric card frame comprises a colorimetric card frame bottom frame body and colorimetric card frame side frame bodies which are symmetrically connected to two sides of the colorimetric card frame bottom frame body respectively, colorimetric card frame vertical rail grooves are formed in the upper portions of the inner walls of the two colorimetric card frame side frame bodies, colorimetric card frame limiting steps are arranged on the colorimetric card frame side frame bodies relative to the bottoms of the colorimetric card frame vertical rail grooves on the colorimetric card frame side frame bodies, colorimetric card frame side lug plates which are matched with the colorimetric card frame vertical rail grooves in length in a sliding mode are arranged on two sides of the colorimetric card surface cover, and the bottom surfaces of the colorimetric card frame side lug plates are in limiting fit with the colorimetric card frame limiting steps;
the colorimetric card holder bottom frame body is internally provided with a colorimetric card holder bottom groove for the bottom of the colorimetric card surface cover to be embedded and matched, a colorimetric card holder buffer cushion is arranged in the colorimetric card holder bottom groove, the upper end of the colorimetric card inserting pocket is arranged in an opening way, and the center of the upper end of the colorimetric card pocket plate is provided with a semicircular notch groove;
the color comparison card surface cover and the color comparison card pocket plate are both made of organic transparent glass;
the small object frame comprises a small object frame back connecting plate and small object frame side frame bodies which are symmetrically connected to the left side and the right side of the small object frame back connecting plate respectively, small object frame vertical rail grooves are formed in the upper portions of the inner walls of the two small object frame side frame bodies, small object frame limiting steps are arranged at the bottoms of the small object frame side frame bodies, corresponding to the small object frame vertical rail grooves on the small object frame side frame bodies, small object frame side lug plates which are matched with the small object frame vertical rail grooves in length in a sliding and inserting mode are arranged on the two sides of the small object frame body frame, and the bottom surfaces of the small object frame side lug plates are in limiting fit with the small object frame limiting steps;
a small article frame buffer cushion is arranged above the small article frame side frame body relative to the small article frame limiting step;
a small article frame panel notch groove is formed in one side of the upper edge of the small article frame panel of the small article frame, and the length of the small article frame grating plate corresponding to the small article frame panel notch groove corresponds to the length of the small article frame panel on the side, opposite to the small article frame panel notch groove, of the small article frame;
the small article rack back plate is provided with a rectangular small article rack drain hole;
the frame body of the small object rack is made of organic transparent glass.
2. The laboratory integrated fumehood of claim 1, wherein:
the instrument frame is formed by acrylic glass splicing and fixing, the left side and the right side of the inner top wall of the instrument cabinet body are provided with a group of pipette racks, the outer side of the first side plate of the instrument frame is provided with an instrument frame side connecting plate, and a plurality of measuring cylinder positioning holes are formed in the instrument frame side connecting plate.
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