Closed workbench

By designing a transparent enclosure and a sliding assembly for the support platform, along with a UV lamp disinfection function, the problems of sample transfer and safety risks in bacterial PCR testing have been solved, achieving an efficient and safe closed operating environment that ensures testing accuracy and personnel safety.

CN224047338UActive Publication Date: 2026-03-27BEIJING ANDING HOSPITAL CAPITAL MEDICAL UNIV +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-15
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

When performing microbial PCR testing on a closed workbench, DNA or RNA in the sample can easily transfer between different samples through air, equipment, gloves, or pipettes, resulting in poor detection accuracy and posing a risk of harm to staff from harmful microorganisms.

Method used

An enclosed workbench was designed, comprising a transparent cover and a support platform. The transparent cover and the support platform slide up and down through a drive assembly to form a sealed container. It is equipped with an ultraviolet lamp for sterilization and disinfection, and a filter plate and a fan for gas filtration to ensure the airtightness and safety of the operating environment.

Benefits of technology

It effectively avoids the transfer of DNA or RNA in bacterial samples, ensuring the accuracy of testing and the safety of staff, and provides a device for quickly forming a sealed container for safe PCR testing.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224047338U_ABST
    Figure CN224047338U_ABST
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Abstract

The utility model discloses a closed workbench which comprises a workbench body, and an opening is formed in the top of the workbench body. The transparent cover body and the bearing table are both arranged on the table body in an up-down sliding mode, the bottom of the transparent cover body is open, the transparent cover body is located at the open position of the table body, and the transparent cover body can slide upwards to the outside of the table body; the bearing table is positioned below the open part of the table body, can slide upwards to the open part and is in contact with the bottom of the transparent cover body, so that the transparent cover body and the bearing table form a closed container; the two operation openings are formed in the same side wall of the transparent cover body; the plurality of ultraviolet lamps are vertically arranged in the table body; and the driving assembly is arranged in the table body. According to the utility model, the transparent cover body and the bearing platform can be effectively sterilized and disinfected before use or after use, and a closed container can be quickly formed during use so as to safely carry out PCR (Polymerase Chain Reaction) detection on florae, so that the use is convenient.
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Description

TECHNICAL FIELD

[0001] The utility model relates to sample detection technical field especially, relate to a closed workstation. BACKGROUND

[0002] The statements here only provide the background of the utility model related, and not necessarily constitute the prior art.

[0003] The flora PCR detection is a molecular biology technique, it extracts the microbial DNA in the environment or clinical sample, then uses specific primer and polymerase chain reaction to amplify the genetic material of target flora, thereby realizes the rapid, accurate identification and quantitative analysis of specific bacteria species, now when detecting, it is on the corresponding closed workstation.But when carrying out flora PCR detection on the closed workstation, usually staff wear corresponding protective clothing, however, during detection, the operation environment is not individually closed, the DNA or RNA in the flora sample can be transferred between different samples through air, equipment, gloves or pipette, resulting in poor detection structure accuracy, and even if the staff wear the corresponding protective clothing, there still exists the risk of being harmed by harmful microorganisms that may exist in the sample, therefore, the closed workstation is proposed to solve the above problems. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at the above-mentioned deficiencies, and provides a closed workstation to solve the problems in the above.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: a closed workstation, comprising:

[0006] A table body, the top of the table body has an opening;

[0007] A transparent cover and a bearing table are arranged on the table body and can slide up and down, the bottom of the transparent cover is open and located in the opening of the table body, the transparent cover can slide up to outside the table body, the bearing table is located below the opening of the table body and can slide up to the opening and contact the bottom of the transparent cover, so that the transparent cover and the bearing table form a closed container;

[0008] Two operation openings are arranged on the same side wall of the transparent cover, the transparent cover can be installed with soft gloves at the operation openings;

[0009] A plurality of ultraviolet lamps are vertically arranged in the table body, the ultraviolet lamps can sterilize and disinfect the transparent cover and the bearing table in the table body;

[0010] A driving assembly is arranged in the table body and used to drive the transparent cover and the bearing table to move up and down.

[0011] Further, the two side walls of the transparent cover body are provided with mounting grooves, and each mounting groove is embedded with a filter plate in communication with the inside and outside of the transparent cover body, and one of the filter plates is provided with a fan for discharging gas in the transparent cover body from the corresponding filter plate.

[0012] Further, the driving assembly comprises mounting plates mounted on the inner walls of the two sides of the table body, and two groups of reciprocating lead screws are vertically arranged on the mounting plates and distributed left and right, the number of reciprocating lead screws in each group is two, one reciprocating lead screw in each group is in threaded connection with the transparent cover body, and the other reciprocating lead screw in each group is in threaded connection with the bearing table, and the table body is provided with a control component for driving the corresponding reciprocating lead screws in the two groups of reciprocating lead screws to rotate, so that the transparent cover body or the bearing table can slide up and down.

[0013] Further, the control component comprises an inner ratchet assembly arranged at the bottom end of each reciprocating lead screw, and each inner ratchet assembly is provided with a sprocket assembly at the end away from the corresponding reciprocating lead screw, the sprocket assembly has two and is distributed left and right, and the sprocket assembly comprises three sprocket bodies and a chain connected to each sprocket body, two of the three sprocket bodies are coaxially arranged at the end of the corresponding inner ratchet assembly away from the reciprocating lead screw, and the other sprocket body of the two sprocket assemblies distributed left and right is rotatably arranged in the table body, and a transmission wheel set is arranged on the other sprocket body, the transmission wheel set comprises two transmission wheels and a transmission belt arranged in transmission on the two transmission wheels, and the two transmission wheels are coaxially arranged on the corresponding sprocket body, respectively, and the table body is further provided with a motor for driving the corresponding sprocket body not in contact with the inner ratchet assembly to rotate.

[0014] The rotating shaft of the motor can rotate clockwise or counterclockwise, and the motor is used for cooperating with the sprocket assembly and the inner ratchet assembly to rotate the corresponding reciprocating lead screw in each group of reciprocating lead screws, and is used for driving the transparent cover body or the bearing table to slide up and down.

[0015] Further, the table body is provided with a sealing ring corresponding to the opening thereof, and the top of the transparent cover body is provided with a sealing plate corresponding thereto, when the transparent cover body slides downward to the inside of the table body, the sealing ring is in contact with the sealing plate, so that a closed environment is formed in the inside of the table body.

[0016] The beneficial effects of the utility model are as follows:

[0017] The utility model discloses, initial state, transparent cover body and bearing platform are all located in the table body, and the ultraviolet lamp can be sterilized and disinfected after starting, when needing to use, drive assembly drives transparent cover body and bearing platform to start in proper order, wherein, transparent cover body first goes up, and it passes through the open place of table body top and moves to table body outside, and when operating mouth is located outside table body, it can be used immediately, then drive bearing platform to go up, and make it contact with the bottom of transparent cover body, and cooperate the glove installed at operating mouth, make it form a closed container, and the staff's hand can go into the glove and operate the flora sample and relevant instrument in the closed container, this mode can avoid the DNA or RNA in flora sample to transfer, and the device can effectively sterilize and disinfect transparent cover body and bearing platform before use or after use, and can form a closed container quickly when using, to the PCR detection of flora safely, thereby convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the perspective view of the utility model;

[0019] Figure 2 It is the structure sectional view (not including cabinet door) of the utility model;

[0020] Figure 3 It is the connection schematic diagram of drive assembly in the utility model;

[0021] Figure 4 It is the local view of A shown in the utility model Figure 3

[0022] In the drawing:

[0023] 1, table body;11, cabinet body;12, cabinet door;13, guide slot;2, transparent cover body;3, operating mouth;4, filter plate;5, fan;6, bearing platform;7, drive assembly;71, mounting plate;72, reciprocating screw;73, inner ratchet wheel assembly;74, chain wheel assembly;741, chain wheel body;742, chain;75, motor;76, transmission wheel group;8, ultraviolet lamp;9, sealing ring;10, sealing plate. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. The embodiments in the application and the features in the embodiments can be combined with each other without conflict. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0025] Please refer to​Figures 1-4 The utility model discloses a closed workstation, including the table body 1, the top of table body 1 has an open, on table body 1 can be up and down slidingly set up transparent cover body 2 and the bearing platform 6, wherein, the bottom of transparent cover body 2 is open and is located the open of table body 1, transparent cover body 2 can slide up to the outside of table body 1, one of the same side wall of transparent cover body 2 is provided with two transverse distribution's operating mouth 3, when using, can install the soft glove at the corresponding operating mouth 3 of transparent cover body 2, and the glove is inserted into transparent cover body 2, is used to operate the instrument and sample in the closed container, the bearing platform 6 is located the below of the open of table body 1, can slide up to the open and contact the bottom of transparent cover body 2, make transparent cover body 2 and the bearing platform 6 form a closed container.

[0026] In an embodiment, the table body 1 includes an internally hollow cabinet body 11, the open is located on the top wall of the cabinet body 11, the cabinet door 12 is hingedly arranged on the cabinet body 11, the sealing strip is installed on the cabinet door 12, the guide groove 13 in the shape of a strip is arranged on the inner wall of the cabinet body 11 along the height direction of the cabinet body 11, the anti-drop piece is slidably inserted into the guide groove 13 on the bearing platform 6, the anti-drop piece cooperates with the guide groove 13 to enable the bearing platform 6 to move up and down only and not to rotate, the plurality of ultraviolet lamps 8 are vertically arranged in the table body 1, the ultraviolet lamps 8 can sterilize and disinfect the transparent cover body 2 and the bearing platform 6 located in the table body 1, and the ultraviolet lamps 8 are staggered with the transparent cover body 2 moving up and down and the bearing platform 6; the driving assembly 7 is further arranged in the table body 1, and the driving assembly 7 is used to drive the transparent cover body 2 and the bearing platform 6 to move up and down.

[0027] In the specific implementation, in the initial state, the transparent cover body 2 and the bearing platform 6 are located in the table body 1, the ultraviolet lamps 8 can sterilize and disinfect them after being started, when it is needed to use, the transparent cover body 2 and the bearing platform 6 are driven by the driving assembly 7 to be started in sequence, wherein, the transparent cover body 2 is first lifted, passes through the open at the top of the table body 1 and moves to the outside of the table body 1, and can be used when the operating mouth 3 is located outside the table body 1; then the bearing platform 6 is driven to be lifted, contacts the bottom of the transparent cover body 2, cooperates with the glove installed at the operating mouth 3 to form a closed container, and the staff can insert the hand into the glove to operate the flora sample and the related instrument in the closed container, the method can avoid the DNA or RNA in the flora sample from being transferred, the transparent cover body 2 and the bearing platform 6 can be effectively sterilized and disinfected before or after being used, and a closed container can be quickly formed when it is used to safely perform the PCR detection on the flora, thereby facilitating the use.

[0028] It should be noted that when the bearing table 6 is located inside the table body 1, there is a gap of not less than 30 cm between the bearing table 6 and the transparent cover body 2, and the instrument is placed on the bearing table 6 in advance, and the worker can place the sample from the transparent cover body 2 and the bearing table 6 on the bearing table 6, and then operate in the above-mentioned manner; in addition, the ultraviolet lamp 8 is multiple, and is installed on each inner wall of the cabinet body 11, and when there is a gap between the transparent cover body 2 and the bearing table 6, the ultraviolet lamp 8 can simultaneously sterilize the inside and outside of the transparent cover body 2.

[0029] In an embodiment, the two side walls of the transparent cover body 2 are provided with mounting grooves, and each mounting groove is embedded with a filter plate 4 which is in communication with the inside and outside of the transparent cover body 2, and one of the filter plates 4 is provided with a fan 5, and the air outlet end of the fan 5 is connected to a gas filtering device (not shown in the figure), and the fan 5 is used to make the gas in the transparent cover body 2 exhaust from the corresponding filter plate 4.

[0030] In a specific implementation, when performing PCR detection, the air outlet end of the fan 5 is connected to the input end of the gas filtering device through a hose, and by starting the fan 5, the gas enters the transparent cover body 2 from the other filter plate 4 and is exhausted through the air outlet end of the fan 5, and the aerosol generated during detection can be directly sucked out by the fan 5, thereby reducing the influence of the aerosol on the detection, and the sucked air enters the gas filtering device and is treated by the gas filtering device, thereby preventing harmful factors such as pathogens that may be contained in the aerosol from being inhaled by laboratory workers. The gas filtering device described above belongs to the common knowledge in the art, and therefore its specific structure, composition and working principle will not be described in detail herein.

[0031] In an embodiment, the driving assembly 7 includes a mounting plate 71 mounted on the inner walls of the two sides of the table body 1, and two groups of reciprocating lead screws 72 are rotatably and vertically mounted on the mounting plate 71, each group of reciprocating lead screws 72 has two reciprocating lead screws 72, and one of the reciprocating lead screws 72 in each group of reciprocating lead screws 72 is threadedly connected with the transparent cover body 2, and the other reciprocating lead screw 72 in each group of reciprocating lead screws 72 is threadedly connected with the bearing table 6, and a control component is arranged in the table body 1, and the control component is used to drive the corresponding reciprocating lead screws 72 in the two groups of reciprocating lead screws 72 to rotate, so as to make the transparent cover body 2 or the bearing table 6 slide up and down.

[0032] In this way, the transparent cover body 2 or the bearing table 6 can be individually driven to slide up and down by the control component, so as to facilitate the actual operation needs.

[0033] In an embodiment, the control component comprises an inner ratchet assembly 73 installed at the bottom end of each reciprocating lead screw 72, and a sprocket assembly 74 is installed at the end of each inner ratchet assembly 73 away from the corresponding reciprocating lead screw 72, the sprocket assembly 74 has two and is distributed left and right, the sprocket assembly 74 comprises three sprocket bodies 741 and a chain 742 connected to each sprocket body 741, among the three sprocket bodies 741, two sprocket bodies 741 are coaxially installed at the end of the corresponding inner ratchet assembly 73 away from the reciprocating lead screw 72; the other sprocket body 741 in the two sprocket assemblies 74 distributed left and right is rotatably installed in the table body 1, and a transmission wheel set 76 is arranged thereon, the transmission wheel set 76 comprises two transmission wheels and a transmission belt arranged on the two transmission wheels, the two transmission wheels are coaxially installed on the corresponding sprocket body 741 respectively, and a motor 75 is also installed in the table body 1, the motor 75 is used to drive the corresponding sprocket body 741 not in contact with the inner ratchet assembly 73 to rotate.

[0034] In a specific implementation, after the motor 75 is started, the rotating shaft thereof can rotate clockwise or counterclockwise, the motor 75 drives the corresponding sprocket body 741 to rotate, in this process, the transmission wheel set 76 and the chain 742 can make all the remaining sprocket bodies 741 rotate synchronously, and due to the arrangement of the inner ratchet assembly 73, when the rotating shaft of the motor 75 rotates clockwise or counterclockwise, the corresponding reciprocating lead screw 72 in each group of reciprocating lead screws 72 is driven to rotate, thereby the transparent cover body 2 or the bearing table 6 can be driven to slide up and down individually, and the inner ratchet assembly 73 in the above belongs to the common knowledge in the art, therefore, the specific working principle thereof will not be described in detail herein.

[0035] In an embodiment, the table body 1 is provided with a sealing ring 9 corresponding to the opening thereof, the sealing ring 9 can be a rubber ring, and the top of the transparent cover body 2 is provided with a sealing plate 10 corresponding thereto.

[0036] In this way, when the transparent cover body 2 slides downward to the inside of the table body 1, the sealing ring 9 will be in contact with the side wall of the sealing plate 10, so that a closed environment is formed in the inside of the table body 1, which can not only prevent the external conditions from affecting the inside of the table body 1, but also prevent the ultraviolet lamp 8 from irradiating the human body through the gap when working.

[0037] It should be noted that if the embodiment of the present application involves directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), if the specific posture changes, the directional indications will also change accordingly.

[0038] In addition, if the description of "first", "second" and the like is involved in the embodiments of the present application, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor in the protection scope required by the present application.

[0039] In addition, "a plurality of" means more than two.

[0040] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A closed workstation, characterized in that, Include: The table body (1), the top of the table body (1) has an opening; Transparent cover (2) and the bearing platform (6) are slidably arranged on the table body (1), the bottom of the transparent cover (2) is open and located in the opening of the table body (1), the transparent cover (2) can be slid upward to the outside of the table body (1); the bearing platform (6) is located below the opening of the table body (1), can be slid upward into the opening and contact with the bottom of the transparent cover (2), so that the transparent cover (2) and the bearing platform (6) form a closed container; Two operating ports (3) are provided on one side wall of the transparent cover (2), and soft gloves can be installed on the corresponding operating port (3) of the transparent cover (2); The two side walls of the transparent cover (2) are provided with mounting grooves, and the filter plates (4) communicating with the inside and outside of the transparent cover (2) are embedded in the mounting grooves, and a fan (5) is arranged at one of the filter plates (4), and the fan (5) is used for discharging the gas in the transparent cover (2) from the corresponding filter plate (4); A plurality of ultraviolet lamps (8) are vertically arranged in the table body (1), and the ultraviolet lamps (8) can sterilize and disinfect the transparent cover (2) and the bearing platform (6) in the table body (1); A drive assembly (7) is arranged in the table body (1) and used for driving the transparent cover (2) and the bearing platform (6) to move up and down; The table body (1) is provided with a sealing ring (9) corresponding to the opening thereof, and the top of the transparent cover (2) is provided with a sealing plate (10) corresponding thereto, when the transparent cover (2) is slid downward to the inside of the table body (1), the sealing ring (9) contacts with the sealing plate (10), so that a closed environment is formed in the table body (1).

2. The enclosure of claim 1, wherein: The drive assembly (7) comprises mounting plates (71) mounted on the inner walls of the two sides of the table body (1), two groups of reciprocating lead screws (72) are vertically and rotatably arranged on the mounting plates (71), the number of reciprocating lead screws (72) in each group is two, one of the reciprocating lead screws (72) in each group is in threaded connection with the transparent cover (2), and the other reciprocating lead screw (72) in each group is in threaded connection with the bearing platform (6), a control component is arranged in the table body (1), and the control component is used for driving the corresponding reciprocating lead screws (72) in the two groups of reciprocating lead screws (72) to rotate, so that the transparent cover (2) or the bearing platform (6) can slide up and down.

3. The enclosure of claim 2, wherein: The control component comprises an inner ratchet assembly (73) arranged at the bottom end of each reciprocating lead screw (72), and each inner ratchet assembly (73) is provided with a sprocket assembly (74) at the end away from the corresponding reciprocating lead screw (72), the sprocket assembly (74) has two and is distributed left and right, the sprocket assembly (74) comprises three sprocket bodies (741) and a chain (742) linked to each sprocket body (741), among the three sprocket bodies (741), two sprocket bodies (741) are coaxially arranged at the end of the corresponding inner ratchet assembly (73) away from the reciprocating lead screw (72); the other sprocket body (741) in the two sprocket assemblies (74) distributed left and right is rotatably arranged in the table body (1), and a transmission wheel set (76) is arranged on it, the transmission wheel set (76) comprises two transmission wheels and a transmission belt arranged in transmission on the two transmission wheels, the two transmission wheels are coaxially arranged on the corresponding sprocket body (741) respectively, and a motor (75) is further arranged in the table body (1), the motor (75) is used for driving the corresponding sprocket body (741) not in contact with the inner ratchet assembly (73) to rotate; The rotating shaft of the motor (75) can rotate clockwise or counterclockwise, the motor (75) is used for cooperating with the sprocket assembly (74) and the inner ratchet assembly (73) to make the corresponding reciprocating lead screw (72) in each group of reciprocating lead screws (72) rotate, and is used for driving the transparent cover body (2) or the bearing table (6) to slide up and down.