Material delivery window

Abstract

The utility model relates to the technical field of biological experiment instruments, and particularly discloses a material delivery window which comprises a window body, the window body comprises a cavity channel, a first cabinet door and a second cabinet door which can seal the channel are further arranged on the window body, and a sterilization device and a negative pressure device are arranged in the cavity channel. The window is characterized in that a pressure sensor capable of monitoring closing of the first cabinet door and the second cabinet door is arranged on the window body, and the pressure sensor is electrically connected with a plc (programmable logic controller) capable of controlling opening and closing of the sterilizing device and the negative pressure device. The technical problems that in the prior art, a disinfecting and killing device of a conveying window needs to be controlled manually, misoperation exists, intelligent hardware conditions are not provided, and intelligent transformation cannot be conducted are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to biological experiment instrument technical field, concretely is a material delivery window. BACKGROUND

[0002] The delivery window is an auxiliary equipment for delivering materials in a clean room, and is mainly used for delivering small articles between clean areas, between a clean area and a non-clean area, so as to reduce the number of opening doors of the clean room, avoid impurities in external air from entering the clean room, and cause pollution to the clean room, and reduce the pollution of the clean room to the minimum.

[0003] In the prior art, the delivery window is made of a stainless steel plate into a square section cylinder, and the cavity of the cylinder forms a channel communicating inside and outside, which is used for delivering articles, and ultraviolet sterilization lamps and other sterilization facilities are arranged in the channel to disinfect and kill the delivered articles. Cabinet doors are arranged at both ends of the channel, and a mechanical interlocking device is arranged on the two cabinet doors, so that the two cabinet doors cannot be opened at the same time, thereby effectively preventing cross contamination.

[0004] Although the above-mentioned delivery window can realize clean delivery of materials between clean areas and non-clean areas, the ultraviolet sterilization lamps and other measures such as alcohol spraying for disinfecting and killing articles need to be manually controlled, and there is a phenomenon that the operator misoperates, does not disinfect and kill the delivered articles, and takes the articles into the clean area, and the delivery window of the prior art does not have intelligent hardware conditions. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a material delivery window, which solves the technical problems that the delivery window of the prior art needs to be manually controlled, misoperation exists, and intelligent hardware conditions are not provided, and intelligent modification cannot be carried out.

[0006] In order to solve the above-mentioned problems, the utility model adopts the following technical scheme: a material delivery window comprises a window body, the window body comprises a cavity channel, the window body is further provided with a first cabinet door and a second cabinet door which can close the channel, a disinfecting and killing device and a negative pressure device are arranged in the cavity channel, a pressure sensor for monitoring the closing of the first cabinet door and the second cabinet door is arranged on the window body, and the pressure sensor is electrically connected with a PLC controller for controlling the opening and closing of the disinfecting and killing device and the negative pressure device.

[0007] The utility model has the advantages that:

[0008] 1. In existing technologies, the transfer window requires manual control of its disinfection device, which can lead to misoperation, such as items being taken into the clean area without being disinfected, resulting in contamination of the clean area. This application, however, incorporates a pressure sensor to detect whether the first and second cabinet doors are closed. By detecting the closed state of the cabinet doors, the PLC controller automatically controls the activation of the disinfection and negative pressure devices. Therefore, it provides the hardware foundation for the intelligentization of the transfer window. Compared with existing technologies, the PLC controller can be directly programmed to achieve automation and reduce the possibility of human error.

[0009] Furthermore, the disinfection device includes an alcohol spray nozzle and an ultraviolet germicidal lamp; the negative pressure device includes an air duct that blows air to the non-clean side; and an installation cavity is provided on the side of the cabinet body. The installation cavity houses an alcohol chamber that supplies alcohol to the alcohol spray nozzle and a fan that provides air pressure to the air duct. The installation cavity provides a sealed space for the alcohol chamber, fan, and other equipment, protecting these devices from external damage while preventing them from disturbing the air and contaminating the clean area.

[0010] Furthermore, the installation cavity is equipped with a cabinet door on the non-clean area side. This cabinet door facilitates the maintenance and material replenishment of equipment such as the alcohol storage tank and blower, and its location on the non-clean area side prevents air from flowing into the non-clean area during maintenance and material replenishment.

[0011] Furthermore, the PLC controller is also installed inside the mounting cavity, and an alcohol pump is provided inside the alcohol chamber. The PLC controller is electrically connected to the alcohol pump and the blower.

[0012] Furthermore, the air inlet of the blower is connected to a filter, which contains a filter nozzle. An alcohol pipeline connects the alcohol tank and the alcohol nozzle, and the alcohol pipeline has a bypass pipe connected to the filter nozzle. The bypass pipe is equipped with a filter solenoid valve, which is electrically connected to the PLC controller. Spraying a small amount of alcohol onto the filter can prevent the excessive growth of bacteria in the filter, which could then enter the transfer window.

[0013] Furthermore, the filter is positioned above the fan, and the filter nozzle is positioned above the filter layer. With the filter nozzle on the filter layer, alcohol is sprayed onto the upper part of the filter layer. Therefore, the filtered air is disinfected with alcohol each time, and under the influence of gravity and wind pressure, the alcohol flows downwards, resulting in better bacterial control of the filter.

[0014] Further, the window body is provided with a delivery window, the delivery window is provided with a closed groove consistent with the size of the cabinet door, and the pressure sensor is installed in the closed groove. The closed groove is provided to ensure that the cabinet door is tightly closed and no air flows when the cabinet door is closed, and the tightly closed cabinet door can ensure that the pressure sensor is more accurate. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the utility model,

[0016] Figure 2 It is a structural schematic view of the utility model after the outer cabinet door is removed. DETAILED DESCRIPTION

[0017] The following will be further described in detail through specific embodiments:

[0018] The reference signs in the drawings of the specification include: window body 1, first cabinet door 11, handle 111, mechanical interlocking 112, second cabinet door 12, installation cavity 13, installation cavity cabinet door 131, closed groove 14, pressure sensor 2, fan 3, air pipe 31, filter 32, filter electromagnetic valve 321, alcohol warehouse 4, alcohol pipeline 41, alcohol nozzle 42, plc controller 5, ultraviolet sterilization lamp 6.

[0019] The embodiments are shown as follows: Figures 1-2 A material delivery window, which comprises a window body 1, the window body 1 is a hollow cube formed by bending a stainless steel plate, Figure 1 The description direction is in the direction, openings are cut in the left and right end side walls of the cube to form delivery windows, the delivery windows include a first delivery window and a second delivery window, the structures are completely same, the first delivery window, the second delivery window and the hollow space inside the window body 1 constitute a channel for delivering articles. The first delivery window is in a non-clean area window, a first cabinet door 11 is arranged outside the first delivery window of the left side wall, and a second cabinet door 12 is arranged outside the second delivery window of the right side wall, the structures of the first cabinet door 11 and the second cabinet door 12 are completely same, and the connection relationship with the window body 1 is also completely same, here, the first cabinet door 11 is used for description, a hinge is installed on the side wall at the rear side of the first delivery window, and the first cabinet door 11 is rotatably connected to the left side wall of the window body 1 by the hinge. A closed groove 14 is formed around the first delivery window in the left side wall of the window body 1, and the size of the closed groove 14 is completely same as that of the first cabinet door 11, so that the first cabinet door 11 can be clamped in the closed groove 14 when the first cabinet door 11 is closed, and the first delivery window and the second delivery window are provided with the closed groove 14.

[0020] The first cabinet door 11 is provided with a handle 111 for opening and closing the door, and a mechanical interlock 112 is provided on the corresponding position of the window body 1, which makes the first cabinet door 11 and the second cabinet door 12 cannot be opened at the same time, avoiding the connection between the non-clean area and the clean area.

[0021] The pressure sensor 2 is installed in the closed groove 14, so that when the cabinet door is closed and locked by the mechanical interlock 112, the pressure sensor 2 is subjected to the pressure of the cabinet door, and the pressure sensor 2 is electrically connected with the PLC controller 5 installed in the mounting cavity 13, so that the pressure signal can be transmitted to the PLC controller 5.

[0022] The disinfecting device and the negative pressure device are provided in the passage of the window body 1, the disinfecting device includes an alcohol nozzle 42 installed at the center position of the inner surface of the upper wall of the window body 1, and four ultraviolet sterilization lamps 6 installed at the four corners of the inner surface of the upper wall of the window body 1. The negative pressure device includes a wind pipe 31, which is provided with four wind pipes, and the four wind pipes are respectively installed at the four corners of the inner surface of the side wall where the second cabinet door 12 is located, so that the air blown by the wind pipe 31 always flows to the non-clean area.

[0023] The mounting cavity 13 is provided at the front end of the window body 1, which is integrated with the window body 1, and the mounting cavity 13 is provided with a mounting cavity door 131, which needs to be arranged on the side of the first cabinet door, i.e. the non-clean area side, and the mounting cavity 13 and the clean area are completely closed in sequence, so as to avoid the pollution of the clean area by the non-clean area through the mounting cavity 13, and the air can enter the mounting cavity 13.

[0024] The alcohol tank 4 is provided in the mounting cavity 13, and the alcohol tank 2 is connected with the alcohol nozzle 42 through the alcohol pipeline 41, and the alcohol pump is arranged on the bottom surface inside the alcohol tank 4, and the alcohol tank 4 can deliver alcohol to the alcohol nozzle 42 through the alcohol pump.

[0025] The fan 3 is provided on the right side of the alcohol tank 4, and the fan 3 is connected with the wind pipe 31 through the pipeline to deliver air pressure to the wind pipe 31. The upper end of the fan 3 is provided with a filter 32, which is connected with the only air inlet of the fan 3, so that the air delivered by the fan 3 to the wind pipe 31 is filtered by the filter 32, so that the air in the passage of the transmission window is clean air. A bypass pipe is provided on the alcohol pipeline 41 corresponding to the position of the filter 32, which is connected with the upper end of the filter 32, i.e. the filtered end, and a filter nozzle is arranged on the upper end of the filter 32, which is connected with the bypass pipe, so that alcohol can be sprayed into the filter 32 through the bypass pipe. A filter electromagnetic valve 321 is arranged on the bypass pipe, which can open and close the flow of alcohol, thereby controlling the amount of alcohol sprayed into the filter 32.

[0026] The PLC controller 5 is electrically connected with the alcohol pump, the filter electromagnetic valve 321, the ultraviolet sterilization lamp 6 and the fan 3, so that the PLC controller 5 can control the opening and closing of the alcohol pump, the filter electromagnetic valve 321, the ultraviolet sterilization lamp 6 and the fan 3.

[0027] When the first cabinet door 11 and the first cabinet door 12 are closed, the pressure sensors 2 in the closed grooves 14 are pressed by the cabinet doors, and the pressure signals are transmitted to the PLC controller 5, so that the PLC controller 5 can control the ultraviolet sterilization lamp 6 to be turned on, and the alcohol pump to be started to spray alcohol and irradiate ultraviolet rays to the delivery window. When the first cabinet door 11 is opened and the second cabinet door 12 is closed, only the pressure sensor 2 on the side of the second cabinet door 12 is pressed by the cabinet door, so that the pressure signal is transmitted to the PLC controller 5 to control the ultraviolet sterilization lamp 6 and the alcohol pump to be turned off, and the fan 3 to be started to blow air to the non-clean area side, so that the air in the non-clean area cannot enter the delivery window. The opening and closing of the pressure control switch are prior art, and will not be described in detail.

[0028] Every interval, for example, 24 hours, the PLC controller 5 opens the filter electromagnetic valve 321 and starts the alcohol pump to spray a small amount of alcohol into the filter 32. The alcohol is on the surface of the filter layer of the filter 32, so when the air enters the filter, it will be disinfected by the alcohol once, and the wind pressure will carry the alcohol to the middle or even the bottom of the process. Therefore, the filter layer of the filter 32 contains a small amount of alcohol, which can prevent a large amount of bacteria from accumulating in the filter 32 and finally passing through the filter layer and being carried to the delivery window by the wind pressure generated by the fan 3.

[0029] The above is only an embodiment of the present application, and the specific structure and characteristics of the scheme are not described in detail. It should be pointed out that for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should be regarded as the protection scope of the present application. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.

Claims

1. A material transfer window, comprising a window body, the window body including a passage, the window body further comprising a cabinet door for closing the passage, the passage being provided with a disinfection device and a negative pressure device, characterized in that: The window body is equipped with a pressure sensor that can monitor whether the cabinet door is closed. The pressure sensor is electrically connected to a PLC controller that can control the opening and closing of the disinfection device and the negative pressure device.

2. The material transfer window according to claim 1, characterized in that: The disinfection device includes an alcohol spray nozzle and an ultraviolet germicidal lamp. The negative pressure device includes an air duct that blows air to the non-clean side. An installation cavity is provided on the side of the window body. An alcohol chamber that provides alcohol to the alcohol spray nozzle and a fan that provides air pressure to the air duct are installed in the installation cavity.

3. The material transfer window according to claim 2, characterized in that: The installation cavity is located on the non-clean area side and has an installation cavity cabinet door.

4. The material transfer window according to claim 3, characterized in that: The PLC controller is also installed in the mounting cavity, and the alcohol chamber is equipped with an alcohol pump. The PLC controller is electrically connected to the alcohol pump and the fan.

5. The material transfer window according to claim 4, characterized in that: The air inlet of the blower is connected to a filter, which contains a filter nozzle. An alcohol pipeline connects the alcohol tank and the alcohol nozzle. The alcohol pipeline has a bypass pipe connected to the filter nozzle. A filter solenoid valve is installed on the bypass pipe and is electrically connected to the PLC controller.

6. The material transfer window according to claim 5, characterized in that: The filter is located at the top of the fan, and the filter nozzle is located at the top of the filter layer.

7. The material transfer window according to claim 1, characterized in that: The window body is provided with a transfer window, and the transfer window has a closed groove with the same size as the cabinet door. The pressure sensor is installed in the closed groove.

Images