CN216826237U

CN216826237U - Biological safety cabinet with lifting workbench

Info

Publication number: CN216826237U
Application number: CN202123108500.1U
Authority: CN
Inventors: 郭晶; 曹启龙; 韩平平; 韩晓; 曾黎; 初相伍
Original assignee: Qingdao Haier Biotechnology Co ltd
Current assignee: Qingdao Haier Biotechnology Co ltd
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-06-28
Anticipated expiration: 2031-12-10

Abstract

The utility model relates to the technical field of biosafety cabinets, in particular to a biosafety cabinet with a lifting workbench, which comprises a support frame, a safety cabinet main body and a lifting device, wherein a support plate is arranged at the top of the support frame, a workbench is arranged at the bottom of the safety cabinet main body, the lifting device is arranged between the support plate and the workbench, a driving motor drives a main shaft to rotate, the main shaft drives two first transmission shafts to rotate through a first steering gear, the two first transmission shafts respectively drive two second transmission shafts to rotate through a second steering gear, and the second transmission shafts drive a lifting mechanism so as to drive the workbench to lift; the front part and the side part between the supporting plate and the workbench are also provided with a protective plate which can lift along with the workbench, so that the workbench can be lifted synchronously, the operation of personnel is facilitated, and the stability is improved; the occupied space is reduced, the possibility that the clothes of the workers are involved is avoided, and the safety is improved.

Description

Biological safety cabinet with lifting workbench

Technical Field

The utility model belongs to the technical field of the biological safety cabinet, specifically say, the utility model relates to a biological safety cabinet with elevating platform.

Background

The biological safety cabinet is a box-shaped air purification negative pressure safety device which can prevent aerosol from dissipating when some dangerous or unknown biological particles are contained in the experimental operation and treatment process. The protective screen 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 protective equipment in the primary protective screen in the biological safety of laboratories.

The existing biological safety cabinet has no function of automatically adjusting the height of a working table. The countertop of a biosafety cabinet is typically at a fixed height. For operators with different heights, the working table with a fixed height may cause some operators to be in an uncomfortable operation posture, which affects the operation comfort and increases the operation burden of the operators. The existing biological safety cabinet with the height adjusting function is unstable in work and poor in lifting effect, the inclination of a workbench can be caused, the stability of gas in the workbench is influenced, and the test result is influenced; in addition, the height adjusting mechanisms are complex in structure, occupy large space, and can cause danger of clothes rolling of workers and cause unnecessary damage.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the existing problems, and provides a biosafety cabinet with a lifting workbench, which can synchronously lift the workbench; the occupied space is reduced, the operation of operators is facilitated, the possibility that clothes of workers are involved is avoided, and the safety is improved.

In order to solve the above problem, the utility model provides a following technical scheme: a biological safety cabinet with a lifting workbench comprises a support frame, a safety cabinet main body and a lifting device, wherein a support plate is arranged at the top of the support frame, a workbench is arranged at the bottom of the safety cabinet main body, the lifting device is arranged between the support plate and the workbench, the lifting device comprises a lifting mechanism, a driving motor, a main shaft, a first transmission shaft, a first steering gear, a second transmission shaft and a second steering gear, the driving motor drives the main shaft to rotate, the main shaft drives two first transmission shafts to rotate through the first steering gear, the two first transmission shafts respectively drive two second transmission shafts to rotate through the second steering gear, and the second transmission shafts drive the lifting mechanism to drive the workbench to lift; the front part and the side part between the supporting plate and the workbench are also provided with a protective plate which can lift along with the workbench.

Furthermore, a third bevel gear and a fourth bevel gear are arranged in the first steering gear, one end of the main shaft is connected with the third bevel gear, the third bevel gear drives the two fourth bevel gears to rotate, and one end of the first transmission shaft is connected with the fourth bevel gears.

Furthermore, the other ends of the two first transmission shafts are respectively connected with a first bevel gear, the first bevel gear respectively drives two second bevel gears to rotate, and the two second bevel gears are respectively connected with one end of a second transmission shaft.

Furthermore, the other end and the gear connection of second transmission shaft, gear and the rack toothing on the lifter, the lifter run through the mount pad from top to bottom and can follow the mount pad and slide from top to bottom, the top of lifter be provided with the supporting seat, four the supporting seat set up four corner ends at the backup pad, the higher authority of supporting seat and the following fixed connection of workstation.

Further, the guard plate include fixed plate and lifter plate, the fixed plate set up in the front portion and the lateral part of backup pad top, fix with screw in the backup pad upper surface bottom of fixed plate, the fixed plate inboard be provided with vertical slide rail, the lifter plate top set up in the front portion and the lateral part of workstation below, the bottom surface at the workstation is fixed at the top of lifter plate, the lift of workstation drives the lifter plate along slide rail up-and-down motion.

Compared with the prior art, the beneficial effects of the utility model are that:

1. drive the main shaft through driving motor and rotate, the main shaft drives two first transmission shafts through first steering gear and rotates, two first transmission shafts respectively through the second steering gear respectively drive two second transmission shafts and rotate, thereby the second transmission shaft drives elevating system and drives the workstation and go up and down, and whole workstation goes up and down in step, has improved the stability that the workstation goes up and down, reduces the vibration degree of workstation, is favorable to protecting experimental materials.

2. The lifting device is arranged between the support frame and the safety cabinet main body, does not occupy the space at the lower part of the support frame, is favorable for placing legs of workers, and adjusts the height of the workbench so as to meet the operation requirements of people with different heights and different operation postures (standing positions or sitting positions) and improve the operation comfort of the operators.

3. The guard plate cladding reduces spreading of the produced noise of inside driving motor and transmission between support frame and safety cabinet main part to prevent that staff's clothing from being drawn into inside, in order to cause the unnecessary damage, the lifter plate is along with the workstation up-and-down motion, the effect of further improvement protection.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a top view of the present invention with the cabinet body removed;

fig. 3 is a schematic structural view of the lifting mechanism of the present invention;

fig. 4 is a right side view of the present invention;

fig. 5 is a front view of the present invention;

FIG. 6 is a cross-sectional view taken along line B-B of FIG. 4 in accordance with the present invention;

fig. 7 is a cross-sectional view taken along a-a of fig. 5 in accordance with the present invention;

fig. 8 is an enlarged schematic view of the structure at a in fig. 6 according to the present invention.

Reference numerals: 1. a support frame; 2. a safety cabinet main body; 3. a lifting mechanism; 4. a second drive shaft; 5. a second diverter; 6. a first steering gear; 7. a drive motor; 8. a slide rail; 9. a first drive shaft; 10. a main shaft; 11. a support plate; 12. a fixing plate; 13. a lifting plate; 21. a work table; 31. a supporting base; 32. a lifting rod; 33. a mounting seat; 34. a gear; 51. a first bevel gear; 52. a second bevel gear; 101. a third bevel gear; 102. and a fourth bevel gear.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in figures 1-8

Example one

The utility model provides a following technical scheme: a biosafety cabinet with a lifting workbench comprises a support frame 1, a safety cabinet main body 2 and a lifting device, wherein the support frame 1 comprises support legs at the bottom and a support plate 11 at the upper part, the support plate 11 is arranged at the top of the support frame 1, the working platform is arranged at the bottom of the safety cabinet main body 2, the safety cabinet main body 2 commonly comprises a working platform 21, a cabinet body, a filter, a fan, an ultraviolet lamp, a fluorescent lamp, a glass door and the like in the prior art, the lifting device is arranged between the support plate 11 and the working platform 21 and comprises a lifting mechanism 3, a driving motor 7, a main shaft 10, a first transmission shaft 9, a first steering gear 6, a second transmission shaft 4 and a second steering gear 5, the driving motor 7 is connected with one end of the main shaft 10 through a coupler, the driving motor 7 drives the main shaft 10 to rotate, the driving motor 7 is electrically connected with an external power supply, the main shaft 10 drives the two first transmission shafts 9 to rotate through the first steering gear 6, the two first transmission shafts 9 respectively drive the two second transmission shafts 4 to rotate through the second steering gear 5, and the second transmission shafts 4 drive the lifting mechanism 3 to drive the workbench 21 to lift. The first steering gear 6 and the second steering gear 5 are both box bodies, a third bevel gear 101 and a fourth bevel gear 102 are arranged in the first steering gear 6, one end of a main shaft 10 is connected with the third bevel gear 101, the third bevel gear 101 drives the two fourth bevel gears 102 to rotate, one end of a first transmission shaft 9 is connected with the fourth bevel gear 102, a bearing is arranged at the position where the main shaft 10 is connected with the box body where the first steering gear 6 rotates, a bearing is also arranged at the position where the two first transmission shafts 9 are rotatably connected with the box body of the first steering gear 6, and the first steering gear 6 converts the left-right rotation of the main shaft 10 on the surface of a supporting plate 11 into the rotation horizontally vertical to the axis of the main shaft 10. The other ends of the two first transmission shafts 9 are respectively connected with a first bevel gear 51, the first bevel gear 51 respectively drives two second bevel gears 52 to rotate, the two second bevel gears 52 are respectively connected with one end of the second transmission shaft 4, similarly, a bearing is also arranged in the second steering gear 5, and the second steering gear 5 converts the rotation of the first transmission shaft 9 into the rotation horizontally vertical to the first transmission shaft 9. The other end and the gear 34 of second transmission shaft 4 are connected, gear 34 and the rack toothing on the lifter 32, lifter 32 run through mount pad 33 from top to bottom and can follow mount pad 33 and slide from top to bottom, the top of lifter 32 be provided with supporting seat 31, four supporting seat 31 set up four angle ends in backup pad 11, supporting seat 31 the higher authority and workstation 21 below fixed connection, the gear and rack transmission turns into the up-and-down motion of lifter 32 with the rotation of second transmission shaft 4.

The guard plate that anterior and lateral part between backup pad 11 and the workstation 21 go up and down along with workstation 21 still are provided with, and the guard plate includes fixed plate 12 and lifter plate 13, fixed plate 12 set up anterior and lateral part in backup pad 11 top, the fix with screw is passed through to the bottom of fixed plate 12 on backup pad 11 surface, fixed plate 12 inboard be provided with vertical slide rail 8, slide rail 8 adopts the slide rail 8 of the common drawer of prior art, lifter plate 13 top set up anterior and lateral part in workstation 21 below, the bottom surface at workstation 21 is fixed at lifter plate 13's top, workstation 21's lift drives lifter plate 13 and moves from top to bottom along slide rail 8.

The use process comprises the following steps: when workers with different heights need to adjust the height of the biological safety cabinet, the rotation of the driving motor 7 is controlled through the external switch, when the ascending switch is started, the driving motor 7 drives the spindle 10 to rotate positively, the spindle 10 drives the third bevel gear 101 at the end part to rotate positively, the rotating direction of the fourth bevel gear 102 is changed through the third bevel gear 101, the fourth bevel gear 102 respectively drives the two first transmission shafts 9 to rotate, the first bevel gears 51 at the end parts of the two first transmission shafts 9 drive the second bevel gears 52 to rotate, the second bevel gears 52 respectively drive the two second transmission shafts 4 to rotate, the gears 34 at the end parts of the second transmission shafts 4 drive the racks on the lifting rods 32 to move upwards, and the lifting rods 32 move upwards along the mounting seats 33. The four lifting rods 32 move upwards simultaneously, so that the whole table top of the workbench 21 rises synchronously, after the table top is adjusted to a corresponding position, the driving motor 7 is turned off, the driving motor 7 is locked, the workbench 21 is fixed at a certain height, when the workbench 21 rises, the bottom of the workbench 21 drives the lifting plate 13 to rise along the slide rail 8, and the lifting plate 13 and the fixing plate 12 are used as a protection plate to coat a gap between the supporting plate 11 and the bottom surface of the workbench 21 together to reduce noise and protect. Similarly, when the driving motor 7 is rotated reversely, it is used to lower the height of the table 21.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a biohazard safety equipment with elevating platform which characterized in that: comprises a support frame (1), a safety cabinet main body (2) and a lifting device, wherein the top of the support frame (1) is provided with a support plate (11), the bottom of the safety cabinet main body (2) is provided with a workbench (21), a lifting device is arranged between the supporting plate (11) and the workbench (21), the lifting device comprises a lifting mechanism (3), a driving motor (7), a main shaft (10), a first transmission shaft (9), a first steering gear (6), a second transmission shaft (4) and a second steering gear (5), the driving motor (7) drives the main shaft (10) to rotate, the main shaft (10) drives the two first transmission shafts (9) to rotate through the first steering gear (6), the two first transmission shafts (9) respectively drive the two second transmission shafts (4) to rotate through the second steering gear (5), the second transmission shaft (4) drives the lifting mechanism (3) to drive the workbench (21) to lift; the front part and the side part between the supporting plate (11) and the workbench (21) are also provided with protective plates which can lift along with the workbench (21).

2. A biosafety cabinet with a lifting platform according to claim 1, wherein: a third bevel gear (101) and fourth bevel gears (102) are arranged in the first steering gear (6), one end of the main shaft (10) is connected with the third bevel gear (101), the third bevel gears (101) drive the two fourth bevel gears (102) to rotate, and one end of the first transmission shaft (9) is connected with the fourth bevel gears (102).

3. A biosafety cabinet with a lifting workbench according to claim 2, characterized in that: the other ends of the two first transmission shafts (9) are respectively connected with a first bevel gear (51), the first bevel gear (51) respectively drives two second bevel gears (52) to rotate, and the two second bevel gears (52) are respectively connected with one end of a second transmission shaft (4).

4. A biosafety cabinet with a lifting workbench according to claim 3, wherein: the other end and the gear (34) of second transmission shaft (4) be connected, gear (34) and the rack toothing on lifter (32), lifter (32) run through mount pad (33) from top to bottom and can follow mount pad (33) and slide from top to bottom, the top of lifter (32) be provided with supporting seat (31), four supporting seat (31) set up four angle ends in backup pad (11), the higher authority of supporting seat (31) and workstation (21) below fixed connection.

5. A biosafety cabinet with a lifting workbench according to claim 4, characterized in that: the guard plate include fixed plate (12) and lifter plate (13), fixed plate (12) set up in the front portion and the lateral part of backup pad (11) top, the bottom of fixed plate (12) is passed through the fix with screw and is in backup pad (11) upper surface, fixed plate (12) inboard be provided with vertical slide rail (8), lifter plate (13) top set up in the front portion and the lateral part of workstation (21) below, the bottom surface at workstation (21) is fixed at the top of lifter plate (13), the lift of workstation (21) drives lifter plate (13) along slide rail (8) up-and-down motion.