A biosafety liquid tank transfer window

Abstract

The invention discloses a biosafety liquid tank transfer window, comprising a tank body, a transfer basket, an airtight door and a gear transmission mechanism. A top plate is arranged on the top of the tank body, transfer ports are arranged on both sides of the top plate, and airtight doors are arranged on the transfer ports. Two transmission shafts are arranged on the top plates on the inner sides of the two transfer ports, and the ends of the two transmission shafts are rotatably connected and fixed on mounting plates on both sides of the tank body. Two connecting rods are also arranged in the tank body, and the ends of the two connecting rods are rotatably connected with the mounting plates. A gear transmission mechanism connecting the transmission rod and the connecting rod is installed on each mounting plate. When the airtight door is opened and closed, the transmission shaft is driven to rotate through the pressure plate, and the rotation of the transmission shaft drives the connecting rod to rotate through the gear transmission mechanism; the transfer basket in the tank body is connected to the two connecting rods through a swing arm; the invention can realize the transmission of objects in the liquid tank through the transfer basket, effectively avoiding the operator's limbs from contacting the disinfectant, and has good air tightness, and is suitable for biosafety facilities with high air tightness requirements.

Description

Technical Field

[0001] The invention relates to the technical field of safety protection equipment, in particular to a biosafety liquid tank transfer window. Background Art

[0002] At present, the transfer window is a kind of item transfer equipment, which is mainly used in industries such as biosafety and clean technology. It is used to transfer small items between areas with high contamination probability and areas with low contamination probability. It can avoid direct connection between two adjacent areas and effectively reduce the contamination that occurs during the transfer process. At the same time, it ensures the air tightness of the laboratory and can effectively solve the air tightness problem of the small item transfer channel in the biosafety room.

[0003] In the field of biosafety, conventional transfer windows need to be disinfected inside and on the surface of the transferred items during and after the transfer process, such as ultraviolet disinfection and gas (steam) disinfection. However, ultraviolet disinfection has blind spots and is not thorough; while gas (steam) disinfection is complicated to operate and takes a long time. The liquid tank transfer window contains disinfectant and is equipped with partitions. The transferred items can only be transferred after being soaked in disinfectant. While effectively blocking the air contact between the two transfer areas, the surface of the disinfected items can also be quickly and effectively disinfected.

[0004] At present, conventional aqueduct transfer windows adopt a manual transfer mode. During the transfer, the operator needs to wear long gloves to place the transfer items at the bottom of the disinfectant. On the other side, the operator also needs to wear long gloves to pick the transfer items out from the bottom of the disinfectant, which is not conducive to personnel operation and occupational health. Summary of the invention

[0005] The purpose of the present invention is to provide a biosafety liquid tank transfer window to solve the problems existing in the above-mentioned prior art. It can realize the transmission of items in the liquid tank through the transfer basket, effectively avoid the operator's limbs from contacting the disinfectant, and has good air tightness, and is suitable for biosafety facilities with high air tightness requirements.

[0006] To achieve the above object, the present invention provides the following solutions:

[0007] The present invention provides a biosafety liquid tank transfer window, comprising a tank body, a transfer basket, an airtight door and a gear transmission mechanism, wherein a top plate is arranged on the top of the tank body, transfer ports are arranged oppositely on both sides of the top plate, and each transfer port is provided with an airtight door, and two transmission shafts are arranged oppositely on the top plates on the inner sides of the two transfer ports, and the two transmission shafts are respectively connected with the two airtight doors through a pressing plate, one end of the pressing plate is fixed on the airtight door, and the other end is sleeved on the transmission shaft and fixedly connected with the transmission shaft, and the ends of the two transmission shafts are rotatably connected and fixed to the mounting plates on both sides of the tank body, and two connecting rods are further arranged in the tank body, and the ends of the two connecting rods are rotatably connected with the mounting plates, and the gear transmission mechanism connecting the transmission rod and the connecting rod is installed on each mounting plate, and when the airtight door is opened and closed, the transmission shaft is driven to rotate by the pressing plate, and the rotation of the transmission shaft drives the connecting rod to rotate through the transmission of the gear transmission mechanism;

[0008] The transfer basket is arranged in the trough body, and the transfer basket is connected to the two connecting rods through a swing arm. When the airtight door on one side is opened, the connecting rod and the transmission shaft rotate synchronously, and the transfer basket is transferred to the transfer port on the same side through the swing arm. During the transfer process, the transfer basket passes through the disinfectant in the trough body.

[0009] Preferably, both sides of the two airtight doors are connected to the top plate through gas rods, and a spherical shell is respectively provided on both sides of the outer ends of the two airtight doors. Four hinge columns opposite to the spherical shells are provided on the top plate, and a spherical shell is provided on the top of the hinge column. The outer ends of the gas rods on both sides of each of the airtight doors are hinged to the spherical shell through a hinge ball, and the inner ends are hinged to the spherical shell on the top of the hinge column through a hinge ball.

[0010] Preferably, two pressure plates are arranged on each of the transmission shafts, and the two pressure plates are arranged on both sides of the transmission shaft and are symmetrically arranged. Support seats are also arranged on both sides of the two transmission shafts respectively.

[0011] Preferably, the gear transmission mechanism includes gear one, gear two and gear three, gear one is connected to the transmission shaft, gear two is meshedly connected to the bottom of gear one, gear two is installed on the mounting plate through a gear shaft, gear three is meshedly connected to the bottom of gear two, and gear three is connected to the connecting rod.

[0012] Preferably, four swing arms are provided, wherein the top ends of two of the swing arms are connected to the two ends of one of the connecting rods, and the bottom ends are connected to the two sides of the tail end of the transfer basket, and the top ends of the other two swing arms are connected to the two ends of another of the connecting rods, and the tail ends are connected to the two sides of the head end of the transfer basket.

[0013] Preferably, the swing arm is a V-shaped arm structure, and the V-shaped openings of the two swing arms at the head end and the two swing arms at the tail end are opposite to each other.

[0014] Preferably, a transparent window is provided in the middle of the door body of the airtight door.

[0015] Preferably, a partition is further provided in the middle of the tank body, and a portion of the partition located inside the tank body is provided with a transfer basket passage opening.

[0016] Preferably, it also includes a control panel, on which a power switch, a disinfection indicator light, a low liquid level alarm prompt light, an alarm reset button and a disinfection time setter are provided. A liquid level sensor is provided on the edge of the partition at the top of the transfer basket through the opening, and the low liquid level alarm indicator light is electrically connected to the liquid level sensor signal.

[0017] Compared with the prior art, the present invention has achieved the following beneficial technical effects:

[0018] 1. The biosafety liquid tank transfer window provided by the present invention is provided with a transmission mechanism, so that opening the airtight door can enable the swing arm to drive the transfer basket to transfer, which can effectively prevent the operator's body from contacting the disinfectant, which is beneficial to the operator's operation and occupational health.

[0019] 2. The biosafety liquid tank transfer window provided by the present invention is provided with an airtight door to ensure the airtightness of the transfer window; and is provided with an automatic monitoring and alarm device for the liquid level of the disinfectant to effectively prevent the disinfectant from falling below the safety line. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a three-dimensional assembly diagram of the biosafety liquid tank transfer window of the present invention;

[0022] Figure 2 It is a front cross-sectional view of the biosafety liquid tank transfer window of the present invention;

[0023] Figure 3 A three-dimensional assembly diagram of the biosafety liquid tank transfer window of the present invention with one of the airtight doors removed;

[0024] Figure 4 This is a schematic diagram of the three-dimensional structure of the biosafety liquid tank transfer window of the present invention after the tank body is removed;

[0025] In the figure: 1-tank body, 2-transfer basket, 3-airtight door, 4-top plate, 5-transfer port, 6-transmission shaft, 7-pressure plate, 8-mounting plate, 9-connecting rod, 10-swing arm, 11-gas rod, 12-ball shell, 13-hinge column, 14-gear 1, 15-gear 2, 16-gear 3, 17-transparent window, 18-partition, 19-support seat. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] The purpose of the present invention is to provide a biosafety liquid tank transfer window to solve the problems existing in the prior art.

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] The biosafety tank transfer window in this embodiment is as follows: Figure 1-4 As shown, it includes a trough body 1, a transfer basket 2, an airtight door 3 and a gear transmission mechanism. A top plate 4 is provided on the top of the trough body 1, and transfer ports 5 are relatively provided on both sides of the top plate 4. An airtight door 3 is provided on each transfer port 5. Two transmission shafts 6 are relatively provided on the top plates 4 on the inner sides of the two transfer ports 5. The two transmission shafts 6 are respectively connected to the two airtight doors 3 through a pressing plate 7. One end of the pressing plate 7 is fixed on the airtight door 3, and the other end is sleeved on the transmission shaft 6 and fixedly connected to the transmission shaft 6. The ends of the two transmission shafts 6 are rotatably connected and fixed to the mounting plates 8 on both sides of the trough body 1. Two connecting rods 9 are also provided in the trough body 1. The ends of the two connecting rods 9 are rotatably connected to the mounting plates 8. A gear transmission mechanism connecting the transmission rod and the connecting rod 9 is installed on each mounting plate 8. When the airtight door is opened and closed, the transmission shaft 6 is driven to rotate through the pressing plate, and the rotation of the transmission shaft 6 drives the connecting rod 9 to rotate through the gear transmission mechanism.

[0030] The transfer basket 2 is arranged in the tank body 1, and the transfer basket 2 is connected to two connecting rods 9 through a swing arm 10. When the airtight door 3 on one side is opened, the connecting rod 9 rotates synchronously with the transmission shaft 6, and the transfer basket 2 is transferred to the transfer port 5 on the same side through the swing arm 10. During the transfer process, the transfer basket 2 passes through the disinfectant in the tank body 1.

[0031] In this specific embodiment, both sides of the two airtight doors 3 are connected to the top plate 4 through the gas rod 11, and a spherical shell 12 is respectively provided on both sides of the outer ends of the two airtight doors 3. Four hinge columns 13 opposite to the spherical shells 12 are provided on the top plate 4, and the spherical shell 12 is provided on the top of the hinge column 13. The outer ends of the gas rods 11 on both sides of each airtight door 3 are hinged to the spherical shell 12 through the hinge balls, and the inner ends are hinged to the spherical shell 12 on the top of the hinge column 13 through the hinge balls.

[0032] In this specific embodiment, two pressure plates 7 are provided on each transmission shaft 6. The two pressure plates 7 are symmetrically arranged on both sides of the transmission shaft 6. Support seats 19 are also respectively provided on both sides of the two transmission shafts 6. The support seats 19 are fixed on the top plate 4 to support the transmission shaft 6.

[0033] In this specific embodiment, the gear transmission mechanism includes gear one 14, gear two 15 and gear three 16, gear one 14 is connected to the transmission shaft 6, gear two 15 is meshed and connected to the bottom of gear one 14, gear two 15 is installed on the mounting plate 8 through the gear shaft, gear three 16 is meshed and connected to the bottom of gear two 15, and gear three 16 is connected to the connecting rod 9; through the setting of the gear transmission mechanism, when the airtight door 3 on one side is opened, the transfer basket is transferred to this time, and at this time, the airtight door 3 on the other side is in a locked state and cannot be opened.

[0034] In this specific embodiment, four swing arms 10 are provided, wherein the top ends of two swing arms 10 are hinged to the two ends of a connecting rod 9, and the bottom ends are hinged to the two sides of the tail end of the transfer basket 2, and the top ends of the other two swing arms 10 are hinged to the two ends of another connecting rod 9, and the tail ends are hinged to the two sides of the head end of the transfer basket 2; the swing arm 10 is a V-shaped arm body structure, and the V-shaped openings of the two swing arms 10 at the head end and the two swing arms 10 at the tail end are opposite to each other.

[0035] In this specific embodiment, a transparent window 17 is provided in the middle of the door body of the airtight door 3 .

[0036] In this specific embodiment, a partition 18 is further provided in the middle of the tank body 1 , and a portion of the partition 18 located inside the tank body 1 is provided with a transfer basket passage opening.

[0037] In this specific embodiment, a control panel (not shown in the figure) is also included, on which a power switch, a disinfection indicator light, a low liquid level alarm prompt light, an alarm reset button and a disinfection time setter are arranged, and a liquid level sensor (not shown in the figure) is arranged on the edge of the partition 18 at the top of the delivery basket through the opening, and the low liquid level alarm indicator light is connected to the liquid level sensor electrical signal. The disinfection time is set by the time setting knob of the disinfection time setter, the disinfection status indicator light is on, and the disinfection completion status indicator light is on when the disinfection is completed; when the disinfectant liquid level drops to the set alarm point, the buzzer in the sound and light alarm device is triggered to emit an alarm sound, and the low liquid level alarm prompt light is on. At this time, the alarm sound disappears when the "alarm reset button" is pressed, and the buzzer is not triggered until the liquid level drops from a high level to the alarm point again.

[0038] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A biosafety tank transfer window, characterized in that: The invention comprises a trough body, a transfer basket, an airtight door and a gear transmission mechanism, wherein a top plate is arranged on the top of the trough body, transfer ports are arranged oppositely on both sides of the top plate, an airtight door is arranged on each transfer port, two transmission shafts are arranged oppositely on the top plates on the inner sides of the two transfer ports, the two transmission shafts are respectively connected with the two airtight doors through a pressure plate, one end of the pressure plate is fixed on the airtight door, and the other end is sleeved on the transmission shaft and fixedly connected with the transmission shaft, the ends of the two transmission shafts are rotatably connected and fixed on the mounting plates on both sides of the trough body, two connecting rods are further arranged in the trough body, the ends of the two connecting rods are rotatably connected with the mounting plates, the gear transmission mechanism connecting the transmission rod and the connecting rod is installed on each mounting plate, the transmission shaft is driven to rotate by the pressure plate when the airtight door is opened and closed, and the rotation of the transmission shaft drives the connecting rod to rotate through the transmission of the gear transmission mechanism; The transfer basket is arranged in the tank body, and the transfer basket is connected to the two connecting rods through a swing arm. When the airtight door on one side is opened, the connecting rod rotates synchronously with the transmission shaft, and the transfer basket is transferred to the transfer port on the same side through the swing arm. During the transfer process, the transfer basket passes through the disinfectant in the tank body; The gear transmission mechanism comprises gear 1, gear 2 and gear 3, wherein gear 1 is connected to the transmission shaft, gear 2 is meshedly connected to the bottom of gear 1, gear 2 is mounted on the mounting plate via a gear shaft, gear 3 is meshedly connected to the bottom of gear 2, and gear 3 is connected to the connecting rod; through the setting of the gear transmission mechanism, when the airtight door on one side is opened, the transfer basket is transferred to this side, and at this time, the airtight door on the other side is in a locked state and cannot be opened; There are four swing arms, wherein the top ends of two of the swing arms are connected to the two ends of one of the connecting rods, and the bottom ends are connected to the two sides of the tail end of the transfer basket, and the top ends of the other two swing arms are connected to the two ends of another of the connecting rods, and the tail ends are connected to the two sides of the head end of the transfer basket.

2. The biosafety liquid tank transfer window according to claim 1, characterized in that: Both sides of the two airtight doors are connected to the top plate through gas rods, and a spherical shell is respectively arranged on both sides of the outer ends of the two airtight doors. Four hinge columns opposite to the spherical shells are arranged on the top plate, and a spherical shell is arranged on the top of the hinge column. The outer ends of the gas rods on both sides of each of the airtight doors are hinged to the spherical shell through hinge balls, and the inner ends are hinged to the spherical shell on the top of the hinge column through hinge balls.

3. The biosafety tank transfer window according to claim 1, characterized in that: Two pressure plates are arranged on each transmission shaft, and the two pressure plates are arranged on both sides of the transmission shaft and are symmetrically arranged. Support seats are also arranged on both sides of the two transmission shafts respectively.

4. The biosafety tank transfer window according to claim 1, characterized in that: The swing arm is a V-shaped arm structure, and the V-shaped openings of the two swing arms at the head end and the two swing arms at the tail end are opposite to each other.

5. The biosafety liquid tank transfer window according to claim 1, characterized in that: A transparent window is arranged in the middle of the door body of the airtight door.

6. The biosafety tank transfer window according to claim 1, characterized in that: A partition is also provided in the middle of the tank body, and a portion of the partition located inside the tank body is provided with a transfer basket passage opening.

7. The biosafety tank transfer window according to claim 1, characterized in that: It also includes a control panel, on which a power switch, a disinfection indicator light, a low liquid level alarm prompt light, an alarm reset button and a disinfection time setter are provided. A liquid level sensor is provided on the edge of the partition at the top of the transfer basket through the port, and the low liquid level alarm indicator light is electrically connected to the liquid level sensor signal.

Images