CN213376741U

CN213376741U - Biological safety cabinet with lifting operation platform

Info

Publication number: CN213376741U
Application number: CN202022196247.9U
Authority: CN
Inventors: 邵宇凌; 马海舒; 刘希东
Original assignee: Northwest Normal University
Current assignee: Northwest Normal University
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-06-08
Anticipated expiration: 2030-09-30

Abstract

The utility model discloses a biosafety cabinet with lifting operation platform, including the frame and the cabinet body, internal studio, filtration system, outer bellows system and the control panel of arranging of cabinet, studio bottom adoption mobilizable operation panel, the operation panel middle part is along transversely being provided with logical groove, and left and right both ends department that lead to the groove all pegs graft there is the baffle, and even spaced apart is equipped with the air vent on the baffle, and it has a plurality of minutes platens to lean on in proper order to connect between two left and right baffles, and the upper surface of dividing the platen is parallel and level mutually with the upper surface of operation panel, leads to the groove middle part and is equipped with the spacing groove of rectangle, and the fork formula lift platform has been placed to the spacing inslot. The utility model discloses a thin, lift gentle cut fork lift platform and the branch platen of concatenation, experiment operator can be as required, through cutting the height that fork lift platform adjustment is located the branch platen at middle part, is convenient for operate and experiment observation, divides the platen, reaches the baffle and all is detachable construction, convenient thorough cleanness with the operation panel.

Description

Biological safety cabinet with lifting operation platform

Technical Field

The utility model belongs to the technical field of laboratory glassware, concretely relates to biosafety cabinet with lift operation panel.

Background

The biosafety cabinet is designed for protecting the operator, the laboratory environment and the experimental materials from being exposed to infectious aerosols and splashes which may be generated in the operation process when operating infectious experimental materials such as primary cultures, strains of bacteria and viruses and diagnostic specimens. The biological safety cabinet is widely applied to scientific research, teaching, clinical examination and production in the fields of microbiology, biomedicine, genetic engineering, biological products and the like, and is the most basic safety protection equipment in a primary protection barrier in biological safety in a laboratory.

The existing biological safety cabinet is shown in fig. 1 and fig. 2, and mainly comprises a frame 5 and a cabinet body fixed on the frame, wherein a working chamber 4, an air filtering system, an outer exhaust air box system and a control panel 2 are arranged in the cabinet body; wherein, the bottom of the working chamber 4 adopts a movable operation table 14, the operation table 14 is made of stainless steel plates, firm, durable and easy to clean, the front and the back sides of the operation table 14 are both provided with air suction holes 15, a liquid collecting tank is arranged below the operation table 14, and a drain valve is arranged, so that the operation table is easy to clean and discharge; a front glass door 3 is arranged on the front side of the working chamber 4 (the front glass door 3 can be driven by arranging a door motor 11 and a traction mechanism), a liquid-gas pipeline interface 7 is arranged on the side surface of the working chamber 4, and an ultraviolet light source 8 for disinfection and a lighting source 9 for providing brightness are arranged on the top of the working chamber 4; the air filtering system comprises an air inlet pre-filter 6, a circulating air filter 10 and an external air discharging filter 12, and has the main functions of ensuring that clean air continuously enters the working chamber 4, ensuring that the vertical airflow in the working chamber 4 keeps a certain flow velocity, ensuring the cleanliness in the working chamber 4 and simultaneously purifying the external air; the outer exhaust air box system consists of an outer exhaust air box shell, a fan 13 and an exhaust pipeline; the control panel 2 is provided with a switch 1 (a switch such as a power supply, an ultraviolet light source 8, an illumination light source 9 and a fan 13).

When the operation is carried out in the working chamber 4 of the biological safety cabinet, the slow moving principle, the vibration avoiding principle and the parallel article placing principle must be followed, and the operation is gentle and gentle; meanwhile, when the experimenter operates, the front glass door 3 can not be opened, and the face of the experimenter is ensured to be above the working window. Although the operating platform 14 at the bottom of the existing working chamber 4 adopts a movable structure, the existing operating platform 14 is an integrated structure and still has a fixed height, and cannot meet the use habits of different experimenters; to the condition that needs contrast observation reaction colour and liquid level, the laboratory technician need take up the observation with the reaction household utensils one by one, to the biosafety cabinet that has the gloves type, the operation is more inconvenient with the observation, moves one by one not only and is unfavorable for the result contrast, still can cause harmful substance's scattering.

SUMMERY OF THE UTILITY MODEL

In order to facilitate the experiment operation and observation in the biosafety cabinet, the utility model aims to provide a biosafety cabinet with a lifting operation platform.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a biosafety cabinet with a lifting operation platform comprises a rack and a cabinet body fixed on the rack, wherein a working chamber, an air filtering system, an outer air discharging box system and a control panel are arranged in the cabinet body, the bottom of the working chamber adopts a movable operation platform, a through groove is transversely arranged in the middle of the operation platform, baffle plates are inserted into the left and right end openings of the through groove, each baffle plate comprises a side plate body extending along the longitudinal direction, and vent holes are uniformly arranged on the side plate bodies at intervals; a plurality of sub-tables are sequentially connected between the left baffle and the right baffle in an abutting mode, each sub-table comprises a rectangular upper plate body, the upper surface of each upper plate body is flush with the upper surface of the operating table, the width of each upper plate body along the longitudinal direction is matched with the width of the corresponding through groove, and lower plate bodies used for supporting the upper plate bodies are fixed on the front side and the rear side of the lower surface of each upper plate body; the middle part that leads to the groove is provided with the spacing groove of rectangle, spacing groove is less than the interval between two relative lower plate bodies in front and back along fore-and-aft width size, and spacing groove is less than the upper plate body along horizontal length size, and scissor-fork lift platform has been placed to the spacing inslot.

Preferably, the left end and the right end of the bottom surface of the operating platform are both provided with support plates, and the support plates are provided with vent holes.

Further, the extension board includes first board, second board and the third board that connects in order from the past to the back, the cross-section of first board and third board all is the U-shaped structure, and the opening of U-shaped structure is inboard towards, the top of second board and the bottom surface looks top of the logical groove department of operation panel connect, the even interval arrangement in first board and third board in ventilation hole.

Preferably, the scissor type lifting platform comprises a supporting platform and a base which are arranged oppositely up and down, and two scissor arm sets which are opposite back and forth are arranged between the supporting platform and the base; the scissor arm group comprises an outer side arm and an inner side arm which are hinged with each other, the top of the outer side arm is hinged with the bottom surface of the supporting platform, the bottom of the outer side arm is guided and supported on the base, the bottom of the inner side arm is hinged on the base, and the top of the inner side arm is guided and supported on the bottom surface of the supporting platform; a cross rod is arranged between the front and the rear scissor arm groups, and the end part of the cross rod is fixedly connected with the bottom of the inner side arm; the outer side of the inner side arm is provided with an electric push rod, the bottom of a guide sleeve of the electric push rod is hinged with the bottom of the inner side arm, and the top of a push rod of the electric push rod is hinged with the middle part of the outer side arm.

Furthermore, the front side and the rear side of the bottom of the outer side arm are both fixed with mounting plates, a guide wheel is mounted between the front mounting plate and the rear mounting plate, the bottom of the outer side arm forms a guide supporting structure through the mounting plates and the guide wheel, and the top of the inner side arm is the same as the guide supporting structure.

Preferably, the front end and the rear end of the side plate body are both provided with protrusions, and the left end and the right end of the through groove are provided with slots matched with the protrusions.

Preferably, the lower plate body comprises a fourth plate portion and a fifth plate portion connected to the bottom of the fourth plate portion, the cross section formed by the fourth plate portion and the second plate portion is L-shaped, the fourth plate portion abuts against the inner wall of the through groove, and the bottom surface of the fifth plate portion seamlessly abuts against the bottom of the through groove.

Further, operation panel and minute platen all adopt corrosion resistant plate to make, logical groove and spacing groove on the operation panel adopt stamping forming.

The utility model adopts the scissor-fork type lifting platform, the thickness is thin, the lifting is gentle, and the experiment operator can adjust the height of the sub-platform plate positioned in the middle part through the scissor-fork type lifting platform according to the requirement, thereby being convenient for operation and experimental observation; a plurality of sub-tables are spliced, so that one sub-table is moved out, and the other sub-tables can slide along the through grooves, thereby facilitating the translation of instruments and vessels on the sub-tables; in addition, the sub-table plate and the baffle plate are both in detachable structures with the operating platform, so that the multifunctional table is convenient and thorough to clean.

Drawings

FIG. 1 is a schematic front view of a prior art biosafety cabinet;

FIG. 2 is a side schematic view of a prior art biosafety cabinet;

FIG. 3 is a schematic view (isometric view) of the structure of the operating table in the prior art biosafety cabinet;

FIG. 4 is a schematic view (isometric view) of the structure of the operating table in the biosafety cabinet of the present invention;

FIG. 5 is a schematic view of the station of FIG. 4 with the baffle and the dispenser plate removed;

FIG. 6 is a left side view of FIG. 5;

FIG. 7 is a schematic view of the construction of the baffle of FIG. 4;

FIG. 8 is a schematic view of the construction of the divider plate of FIG. 4;

FIG. 9 is a schematic structural view (perspective) of the scissor lift platform;

fig. 10 is a schematic view of the structure of the plate of fig. 4.

Detailed Description

A biosafety cabinet with a lifting operation platform is shown in figures 1 and 2, and comprises a rack 5 and a cabinet body fixed on the rack 5, wherein a working chamber 4, an air filtering system, an outer exhaust air box system and a control panel are arranged in the cabinet body; wherein, the bottom of the working chamber 4 adopts a movable operation table 14 (shown in figure 4), the front and the rear sides of the operation table 14 are both provided with air suction holes 15, a liquid collecting tank is arranged below the operation table 14, and a drain valve is arranged; the front side of the working chamber 4 is provided with a front glass door 3, the side surface of the working chamber 4 is provided with a liquid-gas pipeline interface 7, and the top of the working chamber 4 is provided with an ultraviolet light source 8 for disinfection and an illumination light source 9 for brightness. The working chamber 4, the air filtering system, the external air discharging box system, the control panel, the liquid collecting tank, the blow-down valve, the liquid-gas pipeline interface 7, the front glass door 3, the ultraviolet light source 8, the lighting light source 9 and the operation table 14 are all placed by adopting the prior art in the field, and are not innovative in the invention, so detailed description is omitted.

The bio-safety cabinet is innovative in that the structure of the console 14 is improved, as shown in fig. 4-10, and the direction indicated by the arrow a in fig. 4 is taken as the front. A through groove 19 is transversely arranged in the middle of the operating platform 14, baffle plates 17 are inserted into the left and right ports of the through groove 19, each baffle plate 17 comprises a side plate body 1701 extending along the longitudinal direction, and vent holes 1703 are uniformly arranged on the side plate bodies 1701 at intervals; the front end and the rear end of the side plate body 1701 are provided with protrusions 1702, the cross section of each protrusion 1702 can be semicircular, triangular or rectangular (when the protrusions 1702 are rectangular, the width of each protrusion 1702 is smaller than that of the side plate body 1701), and the left end and the right end of the through groove 19 are provided with inserting grooves matched with the protrusions 1702. 3 identical dividing boards 18 (the number of the dividing boards 18 can be adjusted according to the width of the operating table 14) are sequentially connected between the left baffle plate 17 and the right baffle plate 17 in an abutting mode, each dividing board 18 comprises a rectangular upper board body 1801, the upper surface of each upper board body 1801 is flush with the upper surface of the operating table 14, the upper board body 1801 is matched with the width of the through groove 19 along the longitudinal width, and lower board bodies 1802 used for supporting the upper board bodies 1801 are fixed on the front side and the rear side of the lower surface of each upper board body 1801; the lower plate 1802 comprises a fourth plate and a fifth plate connected to the bottom of the fourth plate, the fourth plate and the fifth plate form an L-shaped cross section, the fourth plate abuts against the inner wall of the through groove 19, and the bottom surface of the fifth plate seamlessly abuts against the bottom of the through groove 19; the sub-table plate 18 can slide left and right along the through groove 19. Both the left end and the right end of the bottom surface of the operation platform 14 are provided with support plates 16, each support plate 16 comprises a first plate portion 1601, a second plate portion 1602 and a third plate portion 1603 which are sequentially connected from front to back, the cross sections of the first plate portion 1601 and the third plate portion 1603 are both in a U-shaped structure, the opening of the U-shaped structure faces the inner side, the top of the second plate portion 1602 is abutted to the bottom surface of the through groove 19 of the operation platform 14, and the first plate portion 1601 and the third plate portion 1603 are provided with vent holes 1604 at uniform intervals. The operating table 14, the table separating plate 18 and the support plate 16 are all made of stainless steel plates, and the through groove 19 and the limiting groove on the operating table 14 are integrally formed by stamping; the separating plate 18 and the baffle 17 are detachable from the operating platform 14, and are firm, durable and easy to clean, and the air vents 1703 and the air vents 1604 ensure the lateral air flow at the left side and the right side of the operating platform 14, promote the uniform distribution of the downward air flow in the working chamber 4, and reduce and avoid the pollution in the working chamber 4.

The middle of the through groove 19 is provided with a rectangular limiting groove 20, the width of the limiting groove 20 along the longitudinal direction is smaller than the distance between the two lower plate bodies 1802 which are opposite to each other, the length of the limiting groove 20 along the transverse direction is smaller than the length of the upper plate body 1801 along the transverse direction, and a scissor-type lifting platform is placed in the limiting groove 20. The scissor type lifting platform comprises a supporting platform 22 and a base 21 which are arranged oppositely up and down, the size of the base 21 is matched with that of the limiting groove 20, and two scissor arm sets which are opposite back and forth are arranged between the supporting platform 22 and the base 21; the scissor arm group comprises an outer side arm 23 and an inner side arm 24 which are hinged with each other, the top of the outer side arm 23 is hinged with the bottom surface of the supporting platform 22, the bottom of the outer side arm 23 is guided and supported on the base 21, the bottom of the inner side arm 24 is hinged on the base 21, and the top of the inner side arm 24 is guided and supported on the bottom surface of the supporting platform 22; a cross rod 27 is arranged between the front and the rear scissor arm sets, and the end part of the cross rod is fixedly connected with the bottom of the inner side arm 24. An electric push rod 28 is arranged on the outer side of the inner side arm 24, the electric push rod 28 comprises a driving motor, a reduction gear, a guide sleeve, a push rod, a remote controller and the like (the electric push rod 28 can be made of existing common products sold in the market), the bottom of the guide sleeve of the electric push rod 28 is hinged with the bottom of the inner side arm 24, and the top of the push rod of the electric push rod 28 is hinged with the middle of the outer side arm 23; wherein, the driving motor can adopt a small-sized direct current motor, if a power line is required to be connected, the power line can penetrate out from the air vent 1703 and is connected with a power socket in the cabinet. In addition, a travel switch (omitted in the figure, the travel switch is only required to be a conventional common commercially available product) is further arranged on the base 21, and when the supporting platform 22 rises to a certain height, the travel switch is triggered, so that the supporting platform 22 automatically stops rising continuously to reach the maximum height. The front side and the rear side of the bottom of the outer side arm 23 are both fixed with a mounting plate 25, a guide wheel 26 is mounted between the front mounting plate 25 and the rear mounting plate 25, the bottom of the outer side arm 23 forms a guide support structure through the mounting plate 25 and the guide wheel 26, and the top of the inner side arm 24 is the same as the guide support structure (the guide support structure of the inner side arm 24 and the guide support structure of the outer side arm 23 are arranged oppositely from top to bottom).

When the biosafety cabinet with the lifting operation platform 14 is used, the height of the platform separating plate 18 positioned in the middle can be adjusted through the scissor type lifting platform, so that an operator can conveniently perform test operation. If the number of samples needing to be lifted for observation is small, the platform board 18 in the middle is lifted through the scissor-type lifting platform, so that experimental observation is facilitated; if it is more to need the test sample, and all need rise to compare the observation, branch platen 18 on the right side can move out before the experiment, then go up and down through cutting fork lift platform and be located the branch platen 18 at middle part, again with the branch platen 18 translation right of middle part, will be located left branch platen 18 and move to the middle part position, rethread cuts fork lift platform and goes up and down and divide platen 18. After the test is finished, closing the front glass door 3, keeping the outward-discharging air box system continuously running for 10-15 minutes, opening the ultraviolet lamp, and irradiating for 30 minutes; when the operation table 14 is cleaned, the sub-table plate 18 and the baffle plate 17 can be taken out from the through groove 19 in sequence after the ultraviolet lamp is disinfected, and the operation table 14, the support plate 16, the scissor-fork type lifting platform, the sub-table plate 18 and the baffle plate 17 are wiped by disinfectant.

The present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only for illustrating the principle of the present invention, and the present invention will have various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements all fall into the scope of the claimed invention.

Claims

1. The utility model provides a biosafety cabinet with lift operation panel, includes the frame and is fixed in the cabinet body in the frame, and the cabinet is internal to be provided with studio, air filtration system, outer bellows system and control panel of arranging, and the studio bottom adopts mobilizable operation panel, its characterized in that: a through groove is transversely formed in the middle of the operating platform, baffle plates are inserted into the left and right ports of the through groove and comprise side plate bodies extending along the longitudinal direction, and vent holes are uniformly formed in the side plate bodies at intervals; a plurality of sub-tables are sequentially connected between the left baffle and the right baffle in an abutting mode, each sub-table comprises a rectangular upper plate body, the upper surface of each upper plate body is flush with the upper surface of the operating table, the width of each upper plate body along the longitudinal direction is matched with the width of the corresponding through groove, and lower plate bodies used for supporting the upper plate bodies are fixed on the front side and the rear side of the lower surface of each upper plate body; the middle part that leads to the groove is provided with the spacing groove of rectangle, spacing groove is less than the interval between two relative lower plate bodies in front and back along fore-and-aft width size, and spacing groove is less than the upper plate body along horizontal length size, and scissor-fork lift platform has been placed to the spacing inslot.

2. The biosafety cabinet with a lifting operation platform according to claim 1, characterized in that: and support plates are arranged at the left end and the right end of the bottom surface of the operating platform, and ventilation holes are formed in the support plates.

3. The biosafety cabinet with a lifting operation platform according to claim 2, characterized in that: the extension board includes first board, second board and the third board that connects in order from the past to the back, the cross-section of first board and third board all is the U-shaped structure, and the opening of U-shaped structure is inboard towards, the top of second board and the bottom surface looks apical grafting of the logical groove department of operation panel, the even interval arrangement in first board and third board in ventilation hole.

4. The biosafety cabinet with a lifting operation platform according to claim 1, characterized in that: the scissor type lifting platform comprises a supporting platform and a base which are arranged oppositely up and down, and two scissor arm sets which are opposite back and forth are arranged between the supporting platform and the base; the scissor arm group comprises an outer side arm and an inner side arm which are hinged with each other, the top of the outer side arm is hinged with the bottom surface of the supporting platform, the bottom of the outer side arm is guided and supported on the base, the bottom of the inner side arm is hinged on the base, and the top of the inner side arm is guided and supported on the bottom surface of the supporting platform; a cross rod is arranged between the front and the rear scissor arm groups, and the end part of the cross rod is fixedly connected with the bottom of the inner side arm; the outer side of the inner side arm is provided with an electric push rod, the bottom of a guide sleeve of the electric push rod is hinged with the bottom of the inner side arm, and the top of a push rod of the electric push rod is hinged with the middle part of the outer side arm.

5. The biosafety cabinet with a lifting operation platform according to claim 4, wherein: the front side and the rear side of the bottom of the outer side arm are both fixed with mounting plates, a guide wheel is mounted between the front mounting plate and the rear mounting plate, the bottom of the outer side arm forms a guide supporting structure through the mounting plates and the guide wheel, and the top of the inner side arm is the same as the guide supporting structure.

6. The biosafety cabinet with a lifting operation platform according to claim 1, characterized in that: the preceding, the back both ends of curb plate body all are provided with the arch, lead to the left and right both ends of groove and be provided with the slot with protruding looks adaptation.

7. The biosafety cabinet with a lifting operation platform according to claim 1, characterized in that: the lower plate body comprises a fourth plate part and a fifth plate part connected to the bottom of the fourth plate part, the cross section formed by the fourth plate part and the second plate part is L-shaped, the fourth plate part is abutted to the inner wall of the through groove, and the bottom surface of the fifth plate part is seamlessly abutted to the bottom of the through groove.

8. The biosafety cabinet with lifting operation platform according to any of claims 1 to 7, characterized in that: the operation table and the sub-table plates are made of stainless steel plates.