Biosafety experiment cabinet capable of switching hand operation position

Abstract

The utility model discloses a biosafety experiment cabinet capable of switching a hand operation position. A biosafety experiment cabinet capable of switching hand operation positions comprises a biosafety cabinet main body, the biosafety cabinet main body comprises a cabinet body and a transparent partition plate which is slidably arranged at the front part of the cabinet body, the biosafety experiment cabinet is characterized in that two operation ports which are arranged left and right are formed in the transparent partition plate, and a mounting flange plate is fixed on the outer side of each operation port; the mounting flange plate is detachably connected with a transparent window or a glove operation window; the glove operation window comprises a glove and a glove fixing flange plate used for fixing a glove opening of the glove, and the glove fixing flange plate is detachably connected with the mounting flange plate; when the mounting flange plate is connected with the transparent window, a gap area between the operation table and the transparent partition plate is a first hand operation space; and when the mounting flange plate is connected with the glove operation window, the glove operation window is a second hand operation space. According to the utility model, the space for hand experiment operation is reserved under the condition of different opening degrees of the transparent partition plate.

Description

Technical Field

[0001] This utility model relates to the field of experimental equipment technology, and in particular to biosafety experimental cabinets. Background Technology

[0002] Biosafety cabinets are a type of equipment frequently used in the preparation of chemotherapy drugs or other toxic drugs. They use ventilation devices to force out harmful substances that are dispersed into the air during drug preparation.

[0003] Existing biosafety cabinets typically have a transparent partition at the front, allowing researchers to operate the equipment through an opening between the partition and the worktable. For example, the comfortable biosafety cabinet disclosed in publication number CN101983772A is described. Alternatively, some biosafety cabinets have a glove-operated opening at the front, allowing researchers to perform experiments by passing through the glove. For instance, a Class 3 biosafety cabinet disclosed in publication number CN101862688A is described.

[0004] The two different types of biosafety cabinets described above have different transparent partition opening angles. Currently, there is a lack of biosafety cabinets that can accommodate both different transparent partition opening angles while allowing for switching of hand operation positions to meet different usage needs. Utility Model Content

[0005] This invention addresses the problems and shortcomings of existing technologies by providing a biosafety laboratory cabinet with switchable hand operation positions.

[0006] The present invention solves the above-mentioned technical problems through the following technical solution:

[0007] This utility model provides a biosafety laboratory cabinet with switchable hand operation position, including a biosafety cabinet body, the biosafety cabinet body including a cabinet and a transparent partition at the front of the cabinet that is slidably arranged, characterized in that the transparent partition has two left and right operation ports, and a mounting flange is fixed to the outside of the operation port;

[0008] The mounting flange is detachably connected to a transparent viewing window or a glove operating window;

[0009] The glove operating window includes a glove and a glove fixing flange for fixing the glove opening, and the glove fixing flange is detachably connected to the mounting flange.

[0010] When the mounting flange is connected to the transparent window, the gap area between the operating table and the transparent partition is the first hand operating space.

[0011] When the mounting flange is connected to the glove operating window, the glove operating window serves as a second hand operating space.

[0012] This invention ensures sufficient space for hand operation regardless of the opening degree of the transparent partition. By detachably mounting a transparent viewing window and a glove operating window on the mounting flange, when the transparent partition is lowered to rest against the operating table, the hand operates within the glove inside the glove operating window. When the transparent partition is raised to the desired position, the gap between the transparent partition and the operating table serves as the hand operating area.

[0013] More preferably, a telescopic rod is installed on the outside of the cabinet, and the telescopic rod is connected to the transparent partition.

[0014] It facilitates the raising and lowering of the transparent partition via a telescopic rod.

[0015] More preferably, the left and right side walls of the cabinet are equipped with pass-through windows.

[0016] It facilitates the transfer and delivery of samples.

[0017] More preferably, the transfer window includes a transfer chamber, and the transfer chamber has switchable windows installed on both its left and right sides.

[0018] More preferably, the bottom of the cabinet is equipped with a storage cabinet for storing the transparent viewing window and the glove operating window;

[0019] The storage cabinet is equipped with an upper sliding drawer and a lower sliding drawer, which are arranged vertically.

[0020] The upper sliding plate is provided with a limiting groove for embedding the transparent window;

[0021] The lower sliding plate has a U-shaped notch, and the glove descends vertically and naturally from the U-shaped notch;

[0022] The outer edge of the U-shaped notch has an overlapping groove for laterally sliding into the glove fixing flange.

[0023] It facilitates the storage of components. Depending on different usage needs, it can be switched between a transparent viewing window and a glove-operated window.

[0024] More preferably, a first air inlet group is provided on the front side of the operating table, and a second air inlet group is provided on the rear side of the operating table;

[0025] When the transparent partition descends to abut the operating table, the cabinet and the transparent partition form an operating room, and the first air inlet group and the second air inlet group are located in the operating room;

[0026] The cabinet is connected to an exhaust duct that connects to the first air intake group and the second air intake group. A first HEPA filter module and an exhaust fan are installed sequentially in the exhaust duct.

[0027] An air intake duct is installed inside the cabinet, and an air intake fan and a second HEPA filter module are installed in the air intake duct from top to bottom.

[0028] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0029] The positive and progressive effects of this utility model are as follows:

[0030] This invention enables the switching of different operating areas of the hand, thereby allowing for the adjustment of the opening of the operating chamber to meet different experimental needs. Attached Figure Description

[0031] Figure 1 This is a partial exploded view of a specific embodiment 1 of the present invention;

[0032] Figure 2 This is a schematic diagram of the combination of a transparent baffle and a transparent window in a specific embodiment of this utility model;

[0033] Figure 3 This is a schematic diagram of the combination of a transparent baffle and a glove operating window in a specific embodiment 1 of this utility model;

[0034] Figure 4 This is a schematic diagram of a specific embodiment 3 of the present utility model;

[0035] Figure 5 This is a cross-sectional view of the storage cabinet in specific embodiment 4 of this utility model;

[0036] Figure 6 This is a schematic diagram of the structure of the sliding drawer in specific embodiment 4 of this utility model;

[0037] Figure 7 This is a schematic diagram of airflow in specific embodiment 5 of this utility model. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0039] like Figures 1 to 3 As shown in Specific Embodiment 1, a biosafety laboratory cabinet with switchable hand operation positions includes a main body of the biosafety cabinet. The main body of the biosafety cabinet includes a cabinet body and a transparent partition 1 that slides at the front of the cabinet body. The transparent partition 1 has two operating openings arranged to the left and right. A mounting flange 11 is fixed to the outside of the operating openings. A transparent viewing window 2 or a glove operation window 3 is detachably connected to the mounting flange 11. The glove operation window 3 includes a glove 31 and a glove fixing flange for fixing the glove's opening. The glove fixing flange is detachably connected to the mounting flange 11. An operating table is fixed inside the cabinet. When the mounting flange 11 is connected to the transparent viewing window 2, the gap area between the operating table and the transparent partition 1 is the first hand operation space. When the mounting flange 11 is connected to the glove operation window 3, the glove operation window 3 is the second hand operation space. This utility model achieves that space is reserved for hand experimental operations when the transparent partition 1 is opened at different degrees. By detachably installing a transparent viewing window 2 and a glove operating window 3 on the mounting flange, when the transparent partition 1 is lowered to abut against the operating table, the hand is inside the glove of the glove operating window 3 for operation. When the transparent partition 1 is raised to the desired position, the gap between the transparent partition 1 and the operating table serves as the hand operating area.

[0040] The end of the glove fixing flange away from the mounting flange is provided with an annular mounting part. The glove 31 is fitted onto the outside of the annular mounting part. The annular mounting part has an annular groove for embedding a sealing ring. The glove 31 is clamped between the sealing ring and the annular mounting part.

[0041] Both the glove mounting flange and the transparent viewing window are equipped with a frustum-shaped mounting portion, and a sealing ring is fixed to the outer wall of the frustum-shaped mounting portion. A tapered mounting hole, narrower on the inside and wider on the outside, is formed on the inner wall of the mounting flange, and a sealing ring is clamped between the tapered mounting hole and the frustum-shaped mounting portion.

[0042] This device enables a single machine to be compatible with two different environmental requirements, allowing for switching between different levels of enclosure of the experimental environment within the cabinet.

[0043] When using this device, if the experimental environment inside the cabinet needs to be sealed, and it is necessary to isolate the experiment from contamination introduced by the operator, the experiment is conducted with the transparent partition lowered to its lowest position and against the operating table, and a glove-operated window installed on the transparent partition. When the experimental environment does not need to be sealed, meaning the experimental conditions do not require isolation from contamination introduced by the operator, a transparent window is installed on the transparent partition. Hands operate within the area between the transparent partition and the operating table.

[0044] In specific embodiment 2, based on specific embodiment 1, a telescopic rod is installed on the outside of the cabinet, and the telescopic rod is connected to the transparent partition. This facilitates the raising and lowering of the transparent partition via the telescopic rod.

[0045] See Figure 4 In specific embodiment 3, based on specific embodiment 1, transfer windows 9 are installed on the left and right side walls of the cabinet. This facilitates the transfer of samples. The transfer window 9 includes a transfer chamber, and both sides of the transfer chamber are equipped with operable windows.

[0046] See Figure 5 as well as Figure 6 In specific embodiment 4, based on specific embodiment 1, a storage cabinet 10 for storing the transparent viewing window 2 and the glove operation window 3 is installed at the bottom of the cabinet. The storage cabinet 10 is equipped with an upper sliding drawer 4 and a lower sliding drawer 5 arranged vertically. The upper sliding drawer 4 has a limiting groove for embedding the transparent viewing window 2; the lower sliding drawer 5 has a U-shaped notch 51, from which the glove descends vertically and naturally; the outer edge of the U-shaped notch 51 has an overlapping groove 52 for laterally sliding into the glove fixing flange. This facilitates the storage of components. The transparent viewing window 2 and the glove operation window 3 can be switched according to different usage requirements. Two U-shaped handles are installed at the front ends of the upper and lower sliding drawers. The limiting groove of the upper sliding drawer 4 and the overlapping groove 52 on the lower sliding drawer are both U-shaped structures. The limiting groove of the upper sliding drawer 4 is stepped, wider at the top and narrower at the bottom. The upper and lower sliding drawers can have identical structures.

[0047] See Figure 4 And see also Figure 7 In specific embodiment 5, based on specific embodiment 1, a first air inlet group 71 is provided on the front side of the operating table, and a second air inlet group 72 is provided on the rear side of the operating table. When the transparent partition 1 descends to abut the operating table, the cabinet and the transparent partition 1 form an operating chamber, and the first air inlet group 71 and the second air inlet group 72 are located in the operating chamber. An exhaust duct 8 is connected to the cabinet and connects to the first air inlet group and the second air inlet group. A first HEPA filter module 81 and an exhaust fan 82 are installed sequentially in the exhaust duct 8. An air inlet duct 6 is installed in the cabinet, and an air inlet fan 61 and a second HEPA filter module 62 are installed sequentially from top to bottom in the air inlet duct 6. The air inlet duct and the exhaust duct are independent of each other.

[0048] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A biosafety laboratory cabinet with switchable hand operation position, comprising a biosafety cabinet body, wherein the biosafety cabinet body includes a cabinet frame and a transparent partition at the front of the cabinet frame that slides down, characterized in that, The transparent partition has two operating ports arranged on the left and right, and a mounting flange is fixed to the outside of the operating ports; The mounting flange is detachably connected to a transparent viewing window or a glove operating window; The glove operating window includes a glove and a glove fixing flange for fixing the glove opening, and the glove fixing flange is detachably connected to the mounting flange. An operating table is fixed inside the cabinet. When the mounting flange is connected to the transparent window, the gap area between the operating table and the transparent partition is the first hand operating space. When the mounting flange is connected to the glove operating window, the glove operating window serves as a second hand operating space.

2. A biosafety laboratory cabinet with switchable hand operation position as described in claim 1, characterized in that, A telescopic rod is installed on the outside of the cabinet, and the telescopic rod is connected to the transparent partition.

3. A biosafety laboratory cabinet with switchable hand operation position as described in claim 1, characterized in that, The cabinet has pass-through windows installed on its left and right side walls.

4. A biosafety laboratory cabinet with switchable hand operation position as described in claim 3, characterized in that, The transfer window includes a transfer chamber, and the transfer chamber has switchable windows installed on both the left and right sides.

5. A biosafety laboratory cabinet with switchable hand operation position as described in claim 1, characterized in that, The bottom of the cabinet is equipped with a storage cabinet for storing the transparent viewing window and the glove operation window; The storage cabinet is equipped with an upper sliding drawer and a lower sliding drawer, which are arranged vertically. The upper sliding plate is provided with a limiting groove for embedding the transparent window; The lower sliding plate has a U-shaped notch, and the glove descends vertically and naturally from the U-shaped notch; The outer edge of the U-shaped notch has an overlapping groove for laterally sliding into the glove fixing flange.

6. A biosafety laboratory cabinet with switchable hand operation position as described in claim 1, characterized in that, The front side of the control panel is provided with a first air inlet group, and the rear side of the control panel is provided with a second air inlet group. When the transparent partition descends to abut the operating table, the cabinet and the transparent partition form an operating room, and the first air inlet group and the second air inlet group are located in the operating room; The cabinet is connected to an exhaust duct that connects to the first air inlet group and the second air inlet group. A first HEPA filter module and an exhaust fan are installed sequentially in the exhaust duct. An air intake duct is installed inside the cabinet, and an air intake fan and a second HEPA filter module are installed in the air intake duct from top to bottom.

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