An item delivery channel

Abstract

The present invention relates to a transfer window, and in particular to an article transfer channel. The article transfer channel is arranged in a wall; transfer ports connected to the article transfer channel are arranged on both sides of the wall, and telescopic doors are arranged on the transfer ports; the article transfer channel includes a transfer cavity and elastic connecting parts connected to both ends of the transfer cavity, and the elastic connecting parts can be sealed and connected to the corresponding telescopic doors. The present invention can ensure the sealing between the two areas, avoid cross infection, and has a double protection device, which is safer to operate; it can be used in different clean areas and pressure difference conditions; it is simple to operate and convenient for human-computer interaction, and modularization is convenient for maintenance and maintenance.

Description

Technical Field

[0001] The invention relates to a transfer window, and in particular to an article transfer channel. Background Art

[0002] The transfer window is used to facilitate the items needed for the experiment to enter the studio through the transfer window, so as to ensure that the experimental operation process will not pollute the laboratory environment. In biological laboratories and animal breeding rooms, when transferring items between different isolation areas, the items need to be transferred through the transfer window. At present, the traditional single-door electric lifting transfer window transfers items. The single-door operation cannot distinguish between dirty and clean items. The air with germs in the contaminated area will enter the clean area, causing the air quality to be unqualified, affecting the quality of the disinfected items, and easily causing secondary contamination of the items. Moreover, the upper-opening double-door electric lifting transfer window of the prior art is easy to pinch the staff or damage the items during operation, which poses a safety hazard. The transfer window is an auxiliary equipment of the clean room, mainly used for the transfer of small items between clean areas and clean areas, and between clean areas and non-clean areas, so as to reduce the number of times the clean room door is opened and minimize the pollution to the clean room. With the development of science and technology, the transfer window is widely used in places such as electronics, optics, biopharmaceuticals and food that require air purification. The existing transfer windows mainly use left and right translation door bodies, hinged door bodies or fast rolling door door bodies. However, these transfer windows have some problems: the structure of the transfer window requires a certain amount of installation space, the door is inconvenient to open and close, and they are expensive and costly. Summary of the invention

[0003] In view of the above problems, an object of the present invention is to provide an article transfer channel that can ensure the sealing between the two areas and avoid cross infection.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A passage for delivering articles, which is arranged in a wall; two sides of the wall are provided with delivery openings connected to the passage for delivering articles, and telescopic doors are provided on the delivery openings; the passage for delivering articles comprises a delivery cavity and elastic connecting parts connected to the two ends of the delivery cavity, and the elastic connecting parts can be sealingly connected to the corresponding telescopic doors.

[0006] The elastic connection part includes a telescopic tube, a guide mechanism, a dynamic sealing plate, an electromagnet and a fixed sealing plate, wherein the two ends of the telescopic tube are respectively connected to the dynamic sealing plate and the fixed sealing plate, and the fixed sealing plate is connected to the transfer cavity; the electromagnet is embedded in the dynamic sealing plate, and the guide mechanism is arranged on the transfer cavity and connected to the dynamic sealing plate; the electromagnet can be attracted to the telescopic door after being energized, so that the dynamic sealing plate is sealed and connected to the telescopic door.

[0007] The guiding mechanism comprises a telescopic rod, a telescopic support and a return spring, wherein the telescopic support is arranged on the transfer cavity, the telescopic rod is slidably connected to the telescopic support, and one end of the telescopic rod is connected to the dynamic sealing plate, and the other end is provided with a limiting boss; the return spring is sleeved on the other end of the telescopic rod, and both ends are respectively abutted against the limiting boss and the telescopic support.

[0008] The telescopic door includes a door frame, a closed door and an electric telescopic rod, wherein the door frame is arranged on the transfer port, and slideways are provided on both sides of the door frame; both sides of the closed door are slidably connected to the slideways through pulleys; the electric telescopic rod is arranged below the transfer cavity, and the output end is connected to the closed door, and the electric telescopic rod is used to drive the closed door to move up and down along the slideway.

[0009] An accommodating cavity is provided in the wall, and the electric telescopic rod is arranged in the accommodating cavity.

[0010] Both sides of the wall are sealed environments with a pressure difference. One-way valves are respectively provided on the two telescopic doors. The one-way valves are used to balance the pressure difference between the transfer cavity and the sealed environments on both sides of the wall.

[0011] When the sealing connection between the elastic connection part and the telescopic door is released, the one-way valve opens under the action of the pressure difference existing on both sides of the telescopic door.

[0012] An ultraviolet sterilization lamp and an illumination lamp are arranged in the transfer cavity.

[0013] The transfer cavity is provided with a positioning mechanism for positioning the cage and a cage in-position sensor; the positioning mechanism comprises a cage length positioning block and a cage width positioning block, wherein the cage width positioning block is arranged on both sides of the cage length positioning block.

[0014] The telescopic door is provided with a transparent observation glass.

[0015] The advantages and beneficial effects of the present invention are:

[0016] The invention can ensure the sealing between the two areas, avoid cross infection and has a double protection device, so the operation is safer.

[0017] The invention has simple and reasonable structure, convenient operation and low cost.

[0018] The invention has key-operated, electric lifting, fast transmission, high efficiency, and is suitable for automatic pick-up and placement by robots; it conforms to ergonomics, has an information tracing system, and is convenient for big data, visualization, and cloud computing;

[0019] The present invention can be used in different clean areas and in pressure difference situations; the operation is simple and convenient for human-machine interaction; the modularization is convenient for maintenance and care.

[0020] The invention contains biological accessories, such as an ultraviolet sterilization lamp, which is convenient for the biomedical industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an axonometric diagram of the article transfer channel of the present invention;

[0022] Figure 2 It is a front view of the article delivery channel of the present invention;

[0023] Figure 3 for Figure 2 AA section view;

[0024] Figure 4 for Figure 3 The enlarged image of point Ⅰ in the middle;

[0025] Figure 5 for Figure 4 Enlarged view of the middle II;

[0026] Figure 6 for Figure 2 Middle DD section view;

[0027] Figure 7 for Figure 2 Middle EE section view;

[0028] Figure 8 for Figure 7 Enlarged view of point Ⅲ in the middle;

[0029] Fig. 9 for Figure 2 A top view of

[0030] Fig.10 for Fig. 9 CC section view;

[0031] Fig.11 It is a schematic diagram of the internal positioning structure of the cabin in the present invention;

[0032] Fig.12 It is a schematic diagram of the structure of the one-way valve on the telescopic door in the present invention.

[0033] In the figure: 1 is a foot switch, 2 is an intercom, 3 is a wall, 4 is a transfer cavity, 5 is a telescopic bellows, 6 is a telescopic door, 7 is a transparent observation glass, 8 is a door frame, 9 is a touch sensor, 10 is an ultraviolet germicidal lamp, 11 is a lighting lamp, 12 is an electric telescopic rod, 13 is a pulley, 14 is a slide, 15 is a one-way valve on the experimental side, 16 is a cable vacuum seal wall plug, 17 is a one-way valve on the feeding side, 18 is a cage, 19 is a cage length positioning block, 20 is a cage in-position sensor, 21 is a cage width positioning block, 23 is a dynamic sealing plate, 24 is an electromagnet, 26 is a fixed sealing plate, 27 is a telescopic rod, 28 is a telescopic support, 29 is a reset spring, 30 is a sealing ball, 31 is a one-way spring, and 32 is a connecting channel. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] like Figure 1-4 As shown, the present invention provides an article delivery channel, which is arranged in a wall 3; delivery openings connected to the article delivery channel are arranged on both sides of the wall 3, and a telescopic door 6 is arranged on the delivery opening; the article delivery channel includes a delivery cavity 4 and elastic connecting parts connected to the two ends of the delivery cavity 4, and the elastic connecting parts can be sealed and connected with the corresponding telescopic doors 6.

[0036] like Figure 7-8 As shown, in an embodiment of the present invention, the elastic connecting portion includes a telescopic tube, a guide mechanism, a dynamic sealing plate 23, an electromagnet 24 and a fixed sealing plate 26, wherein both ends of the telescopic tube are respectively connected to the dynamic sealing plate 23 and the fixed sealing plate 26, and the fixed sealing plate 26 is connected to the transfer cavity 4; the electromagnet 24 is embedded in the dynamic sealing plate 23, the guide mechanism is arranged on the transfer cavity 4, and is connected to the dynamic sealing plate 23; the electromagnet 24 can be attracted to the telescopic door 6 after being energized, so that the dynamic sealing plate 23 is sealed and connected to the telescopic door 6.

[0037] Specifically, the guiding mechanism includes a telescopic rod 27, a telescopic support 28 and a return spring 29, wherein the telescopic support 28 is arranged on the inner surface of the transfer cavity 4, the telescopic rod 27 is slidably connected to the telescopic support 28, and one end of the telescopic rod 27 is connected to the dynamic sealing plate 23, and the other end is provided with a limiting boss; the return spring 29 is sleeved on the other end of the telescopic rod 27, and the two ends are respectively abutted against the limiting boss and the telescopic support 28.

[0038] In the embodiment of the present invention, the telescopic tube can be a telescopic bellows 5 or a flexible accordion structure tube.

[0039] like Figure 4 , Figure 9-10As shown, the telescopic door 6 includes a door frame 8, a closed door and an electric telescopic rod 12, wherein the door frame 8 is arranged on the transfer port, and slideways 14 are provided on both sides of the door frame 8; the two sides of the closed door are slidably connected to the slideways 14 through pulleys 13; the electric telescopic rod 12 is arranged below the transfer cavity 4, and the output end is connected to the closed door, and the electric telescopic rod 12 is used to drive the closed door to move up and down along the slideway 14.

[0040] Furthermore, a transparent observation glass 7 is provided on the telescopic door 6. An accommodating cavity is provided in the wall 3, and the electric telescopic rod 12 is arranged in the accommodating cavity.

[0041] like Figure 6 As shown, both sides of the wall 3 are sealed environments with a pressure difference, and one-way valves are respectively provided on the two telescopic doors 6. When the elastic connection part and the telescopic door 6 are released from the sealed connection, the one-way valve opens under the action of the pressure difference on both sides of the telescopic door 6. The one-way valve is used to balance the pressure difference between the sealed environments on both sides of the transmission cavity 4 and the wall 3, so that the telescopic tube can be quickly retracted and returned to its original position when the electromagnet 24 loses power, thereby speeding up the door opening rhythm.

[0042] like Fig.12 As shown, the one-way valve is arranged in the communication channel 32 provided on the telescopic door 6; the one-way valve includes a sealing ball 30 and a one-way spring 31, the communication channel 32 is a stepped hole, the sealing ball 30 is accommodated in the stepped hole, one end of the one-way spring 31 is in contact with the sealing ball 30, and the other end is connected to the inner wall of the communication channel 32, and the sealing ball 30 closes the communication channel 32 under the pressure of the one-way spring 31. When the electromagnet 24 loses power and the dynamic sealing plate 23 is separated from the telescopic door 6, the sealing ball 30 will overcome the elastic force of the one-way spring 31 under the action of the pressure difference on both sides and move upward, open the communication channel 32, and make the transfer cavity 4 communicate with the external environment to balance the internal and external pressure difference, so as to quickly reset the telescopic tube.

[0043] Furthermore, if Figure 4 As shown, the transfer cavity 4 is provided with an ultraviolet sterilization lamp 10 and an illumination lamp 11. The ultraviolet sterilization lamp 10 is multiple and is arranged at the bottom of the transfer cavity 4, so that internal sterilization can be performed without transferring the cage 18. The illumination lamp 11 is arranged at the top of the transfer cavity 4 to facilitate illumination inside the transfer cavity 4.

[0044] like Figure 4-5 , Fig.11As shown, in the embodiment of the present invention, a positioning mechanism for positioning the cage 18 and a cage in-position sensor 20 are provided in the transfer cavity 4. The positioning mechanism includes a cage length positioning block 19 and a cage width positioning block 21, wherein the cage width positioning block 21 is arranged on both sides of the cage length positioning block 19. The cage 18 is positioned inside the transfer cavity 4 by the guide and fillet of the cage length positioning mechanism 19 and the cage width positioning mechanism 20, and the cage in-position sensor 21 can detect whether the cage 18 placed manually and by the robot is in place. The cage 18 contains a barcode or a two-digit code, which can be used with a barcode scanner and other data transmission using network technology, can be used for information tracing, and is convenient for big data management, big data analysis, and visual statistical analysis.

[0045] like Figure 3 As shown, in the embodiment of the present invention, one side of the wall 3 is a laboratory, and the other side is a feeding room; the pressure in the laboratory is P0, and the pressure in the feeding room is P1, that is, there is a certain pressure difference between the laboratory and the animal feeding room, specifically 10Pa to 20Pa. The middle part of the transfer cavity 4 is fixed and connected to the sealed wall 3 in a static seal, and the interior of the transfer cavity 4 contains an ultraviolet sterilization lamp 10, and the external sterilization lamp 10 can sterilize the internal space with ultraviolet rays. The interior of the transfer cavity 4 also contains a lighting lamp 11, which can illuminate the internal space for a required time. The middle part of the transfer cavity 4 contains a cable vacuum sealing wall plug 16, which can integrate electrical signals and power supply to the outside and inside of the transfer cavity 4 while ensuring the sealing inside and outside. A touch sensor 9 is provided on the outside of the telescopic door 6 to prevent accidental pinching of hands or delivery of items. One end of the electric telescopic rod 12 is connected to the ground, and the other end of the electric telescopic rod 12 is connected to the telescopic door 6. The electric telescopic rod 12 can control the telescopic door 6 to move up and down on the wall plane. The telescopic door 6 located on the laboratory side is equipped with an experimental side check valve 15, and the telescopic door 6 located on the animal feeding room side is equipped with a feeding side check valve 17. Before the telescopic door 6 moves up and down, one end of the telescopic bellows 5 can automatically balance the internal and external pressure difference of the transfer cavity 4 under the condition of establishing a pressure difference after the sealing connection between the telescopic door 6 and one end of the telescopic bellows 5 is released, that is, the pulsating pressure difference between the internal pressure P2 of the transfer cavity 4 and the pressure P0 in the laboratory and the pressure P1 in the animal feeding room is balanced, so that the telescopic bellows 5 or the flexible organ structure pipe can be smoothly contracted and reset. The telescopic doors 6 on both sides of the transfer cavity 4 contain software interlocks to ensure that the doors on both sides cannot be opened at the same time. The experimental side check valve 15 and the feeding side check valve 17 can reduce the pulsating pressure difference between the internal pressure P2 of the transfer cavity 4 and the pressure P0 in the laboratory and the pressure P1 in the animal feeding room, and can speed up the door opening rhythm.

[0046] The transfer chamber 4 is also provided with a differential pressure gauge and a sealed airtightness detection port for easy later inspection and maintenance. A foot switch 1 and an intercom 2 are provided on the side wall of the wall 3 located on one side of the laboratory. Figure 1 shown.

[0047] The specific working process of the article delivery channel provided by the present invention is as follows:

[0048] 1) The industrial robot sends a signal to request to open the door;

[0049] 2) The electromagnet 24 in the telescopic bellows 5 on the animal feeding room side releases the sealing suction force, and under the action of the elastic force of the internal return spring 29 and the telescopic rod 27, the telescopic bellows 5 and the telescopic door 6 release the contact seal, and at the same time, the one-way valve 17 on the feeding side opens under the action of the pressure difference, so that the transfer cavity 4 and the animal feeding room are connected, and the pressure difference is released;

[0050] 3) The telescopic door 6 on the animal breeding room side moves upward under the drive of the electric telescopic rod 12, thereby opening the telescopic door 6 to allow the transfer cavity 4 to communicate with the animal breeding room;

[0051] 4) The robot in the animal breeding room transfers the cages 18 from the cage racks or buffers in the animal breeding room to the mechanical positions inside the transfer chamber 4 one by one, and at the same time confirms the signal that the cages 18 are in place;

[0052] 5) The telescopic door 6 moves downward under the drive of the electric telescopic rod 12 to reset, so that the transfer cavity 4 and the animal breeding room are mechanically closed;

[0053] 6) The electromagnet 24 in the telescopic bellows 5 on the animal feeding room side generates a sealing suction force. Under the action of the telescopic bellows 5 overcoming the reset spring 5, the telescopic bellows 5 and the telescopic door 6 generate a contact static seal, and at the same time, the one-way valve 17 on the feeding side is closed, completing the airtight sealing of the transfer cavity 4 and the animal feeding room;

[0054] 7) Manually kick the switch 1, the control system determines that the telescopic door 6 on the laboratory side and the telescopic door 6 on the animal breeding room side are software-logically interlocked;

[0055] 8) The electromagnet 24 in the telescopic bellows 5 on the laboratory side releases the sealing suction force. Under the action of the elastic force of the internal return spring 29 and the telescopic rod 27, the telescopic bellows 5 and the telescopic door 6 release the contact seal. At the same time, the one-way valve 15 on the laboratory side opens, connecting the transfer chamber 4 and the laboratory, and releasing the pressure difference.

[0056] 9) The telescopic door 6 on the laboratory side moves upward under the drive of the electric telescopic rod 12, and the telescopic door 6 on the laboratory side is opened, so that the transfer cavity 4 is connected with the laboratory side;

[0057] 10) The experimenter on the laboratory side mechanically positions the cages 18 from the transfer chamber 4, and transfers them one by one to the cache table on the laboratory side, and at the same time confirms the cage 18 departure signal;

[0058] 11) The laboratory side telescopic door 6 moves downward under the drive of the electric telescopic rod 12 to reset, so that the transfer cavity 4 is mechanically sealed from the laboratory;

[0059] 12) The electromagnet 24 in the telescopic bellows 5 on the laboratory side generates a sealing suction force. The telescopic bellows 5 overcomes the action of the reset spring 29, and the telescopic bellows 5 and the telescopic door 6 generate a contact static seal. At the same time, the one-way valve 15 on the laboratory side is closed, completing the airtight sealing of the transfer cavity 4 and the laboratory;

[0060] 13) The experimenter on the laboratory side performs information matching, which contains barcodes or two-digit codes, and can use network technology to transmit data with barcode scanners, etc., and can trace information, which is convenient for big data management, big data analysis, and visual statistical analysis.

[0061] The present invention can ensure the sealing between the two areas, avoid cross infection and has a double protection device, so the operation is safer; it can be used in different clean areas and in pressure difference situations; the operation is simple and convenient for human-computer interaction; the modularization facilitates maintenance and care.

[0062] The above description is only an embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, expansion, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. An article delivery channel, characterized in that: The article transfer passage is arranged in the wall (3); transfer openings communicating with the article transfer passage are arranged on both sides of the wall (3), and telescopic doors (6) are arranged on the transfer openings; The article transfer channel comprises a transfer cavity (4) and elastic connecting parts connected to both ends of the transfer cavity (4), and the elastic connecting parts can be sealedly connected to the corresponding telescopic doors (6); The elastic connection part comprises a telescopic tube, a guide mechanism, a dynamic sealing plate (23), an electromagnet (24) and a fixed sealing plate (26), wherein two ends of the telescopic tube are respectively connected to the dynamic sealing plate (23) and the fixed sealing plate (26), and the fixed sealing plate (26) is connected to the transfer cavity (4); the electromagnet (24) is embedded in the dynamic sealing plate (23), the guide mechanism is arranged on the transfer cavity (4) and is connected to the dynamic sealing plate (23); the electromagnet (24) can be attracted to the telescopic door (6) after being energized, so that the dynamic sealing plate (23) and the telescopic door (6) are sealed and connected; Both sides of the wall (3) are sealed environments with a pressure difference, and the two telescopic doors (6) are respectively provided with a one-way valve, and the one-way valve is used to balance the pressure difference between the transfer cavity (4) and the sealed environment on both sides of the wall (3).

2. The article delivery channel according to claim 1, characterized in that: The guide mechanism comprises a telescopic rod (27), a telescopic support (28) and a return spring (29), wherein the telescopic support (28) is arranged on the transfer cavity (4), the telescopic rod (27) is slidably connected to the telescopic support (28), and one end of the telescopic rod (27) is connected to the dynamic sealing plate (23), and the other end is provided with a limiting boss; the return spring (29) is sleeved on the other end of the telescopic rod (27), and the two ends are respectively abutted against the limiting boss and the telescopic support (28).

3. The article delivery channel according to claim 1, characterized in that: The telescopic door (6) comprises a door frame (8), a closed door and an electric telescopic rod (12), wherein the door frame (8) is arranged on the transfer port, and slideways (14) are arranged on both sides of the door frame (8); both sides of the closed door are slidably connected to the slideways (14) via pulleys (13); the electric telescopic rod (12) is arranged below the transfer cavity (4), and an output end is connected to the closed door, and the electric telescopic rod (12) is used to drive the closed door to move up and down along the slideways (14).

4. The article delivery channel according to claim 3, characterized in that: The wall (3) is provided with a receiving cavity, and the electric telescopic rod (12) is arranged in the receiving cavity.

5. The article delivery channel according to claim 1, characterized in that: When the sealing connection between the elastic connection portion and the telescopic door (6) is released, the one-way valve opens under the action of the pressure difference existing on both sides of the telescopic door (6).

6. The article delivery channel according to claim 1, characterized in that: An ultraviolet sterilization lamp (10) and an illumination lamp (11) are arranged in the transfer cavity (4).

7. The article delivery channel according to claim 1, characterized in that: The transfer cavity (4) is provided with a positioning mechanism for positioning the cage (18) and a cage in-position sensor (20); the positioning mechanism comprises a cage length positioning block (19) and a cage width positioning block (21), wherein the cage width positioning block (21) is arranged on both sides of the cage length positioning block (19).

8. The article delivery channel according to claim 1, characterized in that: The telescopic door (6) is provided with a transparent observation glass (7).

Images