Three-door interlocking and timer linkage device

Abstract

The utility model provides a three-door interlocking and timer linkage device, which comprises a self-cleaning area three-room door, an interlocking and timer control circuit, the self-cleaning area three-room door comprises an unpacking room door, an airlock room door and a clean corridor door, a timer is arranged in a wall for separating an unpacking room and an airlock room, the front and back surfaces of the timer are provided with display screens, the two surfaces are visible, and the interlocking and timer control circuit is connected with the interlocking and timer control circuit. When materials enter the airlock room door and the clean corridor door and are closed at the same time, countdown is started after an instruction is received, the airlock room door or the clean corridor door can be opened after countdown is finished, interlocking of the three doors is achieved, personnel cannot open the doors at will to enter a self-cleaning area of a workshop, the two doors cannot be opened at the same time, cross contamination of the materials is effectively avoided, and the service life of the airlock room door and the clean corridor door is prolonged. And the added timer is interlocked and linked with the three doors, so that materials can be self-cleaned for a certain time in an environment in which the airlock is completely closed, the requirement of GMP (Good Manufacturing Practice) is met, the manual operation steps are reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of linkage control, in particular to a three-door interlocking and timer linkage device. Background Art

[0002] In the drug production process of pharmaceutical companies, all materials entering the workshop must be removed from their outer packaging in the unpacking room, and the material name and quantity must be checked to see if they match the material requisition. After the check is completed, the materials are transferred to the airlock room and allowed to stand for a certain period of time in the closed airlock room for self-purification to meet GMP requirements. After the materials are self-purified, they are transferred to the clean corridor. In existing technologies, there is no strict control over the time that materials are allowed to stand for self-purification in the airlock room, and manual timing is troublesome. In addition, the three-door interlocking is not achieved, so personnel can open the door at will, which can easily lead to cross-contamination of materials. The interlocking door mentioned in the utility model, also called linkage door, is a door control system that realizes linkage control of multiple doors through a comprehensive control method. The utility model proposes a three-door interlocking and timer linkage device, and the timer and the three-door interlocking device are simultaneously applied to the production steps of material self-purification. Personnel cannot open the door to enter the self-purification area of ​​the workshop at will, and cannot open two doors at the same time, which effectively avoids cross contamination of materials. The added timer is linked with the three-door interlocking, so that the material can be self-purified for a certain period of time in a completely closed environment of the airlock room, which can meet the requirements of GMP, reduce the operating steps of manual timing, and improve production efficiency. Summary of the invention

[0003] The purpose of the utility model is to propose a three-door interlocking and timer linkage device to address the problems in the prior art that the time for materials to stand still and self-clean in an airlock room is not strictly controlled, the manual timing operation is troublesome, and the three-door interlocking is not achieved, which easily leads to cross contamination of materials. The timer and the three-door interlocking device are simultaneously applied to the production step of material self-cleaning.

[0004] The technical solution of this utility model is as follows:

[0005] A three-door interlock and timer linkage device, characterized in that it includes three doors in a self-cleaning area, an interlock and timer control circuit, the three doors in the self-cleaning area include an unpacking room door, an airlock door, and a clean corridor door, the interlock and timer control circuit includes a timer, an unpacking room door opening button, an airlock door opening button, a clean corridor door opening button, an unpacking room door closing button, an airlock door closing button, and a clean corridor door closing button, the unpacking room door opening button and the unpacking room door closing button respectively control the opening and closing of the unpacking room door, the airlock door opening button and the airlock door closing button respectively control the opening and closing of the airlock door, the clean corridor door opening button and the clean corridor door closing button respectively control the opening and closing of the clean corridor door, the timer is embedded in the wall separating the unpacking room and the airlock room, has display screens on both sides, and is visible on both sides, the timer receives an instruction to start countdown when the material enters the airlock room and the airlock door and the clean corridor door are closed at the same time, and the airlock door or the clean corridor door can be opened only after the countdown ends.

[0006] Furthermore, the timer is installed on the wall separating the unpacking room and the airlock room, embedded in the wall, with display screens on both sides, visible on both sides, and convenient for observing the self-cleaning time.

[0007] Furthermore, the timer will be activated only when the airlock door and the clean corridor door are closed at the same time, and the countdown will start automatically.

[0008] The beneficial effects of the utility model are:

[0009] The three-door interlocking system prevents personnel from opening the door at will to enter the self-cleaning area of ​​the workshop, and two doors cannot be opened at the same time, which effectively avoids cross-contamination of materials. The added timer is linked with the three-door interlocking system, so that the materials can be self-cleaned for a certain period of time in a completely closed environment in the airlock room, which can meet the requirements of GMP, reduce the number of manual timing operations, and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 -Three-door installation structure of the utility model

[0011] Among them, A-unpacking room door, B-airlock door, C-clean corridor door, D-timer, a1-unpacking room door opening button, a2-unpacking room door closing button, b1-airlock door opening button, b2-airlock door closing button, c1-clean corridor door opening button, c2-clean corridor door closing button, 1-unpacking room door indicator light, 2-airlock door indicator light, 3-clean corridor door indicator light. DETAILED DESCRIPTION

[0012] The following will be combined with the drawings of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on this embodiment, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0013] like Figure 1 As shown, a three-door interlock and timer linkage device is characterized in that it includes three doors in a self-cleaning area, an interlock and timer control circuit, the three doors in the self-cleaning area include an unpacking room door A, an airlock door B, and a clean corridor door C, the interlock and timer control circuit includes a timer D, an unpacking room door opening button a1, an airlock door opening button b1, a clean corridor door opening button c1, an unpacking room door closing button a2, an airlock door closing button b2, and a clean corridor door closing button c2, the timer D is embedded in the wall separating the unpacking room and the airlock room, the timer D has display screens on both sides, and both sides are visible, so that the timer indication can be seen in the unpacking room and the clean corridor, and the timer D receives an instruction to start countdown when the material enters the airlock door B and the clean corridor door C are closed at the same time, and the countdown ends after the countdown , only then can the airlock door B or the clean corridor door C be opened. The unpacking room door opening button a1 and the unpacking room door closing button a2 respectively control the opening and closing of the unpacking room door A, the airlock door opening button b1 and the airlock door closing button b2 respectively control the opening and closing of the airlock door B, the clean corridor door opening button c1 and the clean corridor door closing button c2 respectively control the opening and closing of the clean corridor door C. There is an unpacking room door indicator light 1 on the side of the unpacking room door A, which displays the opening and closing status of the unpacking room door A. Similarly, there is an airlock door indicator light 2 on the side of the airlock door B, which displays the opening and closing status of the airlock door B. There is a clean corridor door indicator light 3 on the side of the clean corridor door C, which displays the opening and closing status of the clean corridor door C. The indicator light is green, indicating that the door is closed, and the indicator light is red, indicating that the door is open.

[0014] When the unpacking room door A is opened, the electric lock on the unpacking room door A sends a signal to the controller, and the controller simultaneously triggers the airlock door closing button b2 and the clean corridor door closing button c2 to lock the airlock door B and the clean corridor door C, making them unable to be opened. Only when the unpacking room door A is closed, can the airlock door B or the clean corridor door C be opened. When the airlock door B is opened, the electric lock on the airlock door B sends a signal to the controller, and the controller simultaneously triggers the unpacking room door closing button a2 and the clean corridor door closing button c2 to lock the unpacking room door A and the clean corridor door C, making them unable to be opened. Only when the airlock door B is closed, can the airlock door B or the clean corridor door C be opened. The unpacking room door A or the clean corridor door C can be opened. When the clean corridor door C is opened, the electric lock on the clean corridor door C sends a signal to the controller, and the controller simultaneously triggers the unpacking room door closing button a2 and the airlock room door closing button b2 to lock the unpacking room door A and the airlock room door B, making them unable to be opened. Only when the clean corridor door C is closed can the unpacking room door A or the airlock room door B be opened. The timer D receives the instruction to start the countdown when the material enters the airlock room and the airlock room door B and the clean corridor door C are closed at the same time. After the countdown ends, the airlock room door B or the clean corridor door C can be opened.

[0015] 1. Press the unpacking room door opening button a1 to open the unpacking room door A. At this time, the unpacking room door indicator 1 is red. Transfer the materials related to drug production to the unpacking room. Press the unpacking room door closing button a2 to close the unpacking room door A. At this time, the unpacking room door indicator 1 is green. Then open the airlock door B. At this time, the airlock door indicator 2 is red. Note that the materials related to drug production must be transferred to the airlock room under the premise that the clean corridor door C is locked. Then close the airlock door B. At this time, the airlock door indicator 2 is green. When the clean corridor door C is closed at the same time, the clean corridor door indicator 3 is green, and the timer D starts to count down for 5 minutes. At this time, the airlock room is fully closed, and the airlock door B and the clean corridor door C are locked and cannot be opened. Only when the countdown is over can the clean corridor door C be opened, and then all the materials in the airlock room are transferred to the clean corridor. The clean corridor door C should be closed in time. The utility model realizes the interlocking of three doors, and personnel cannot open the door to enter the self-cleaning area of ​​the workshop at will, and two doors cannot be opened at the same time, which effectively avoids cross contamination of materials; the added timer D is linked with the interlocking of the three doors, so that the materials can be self-cleaned for a certain period of time in a completely closed environment of the airlock room, which can meet the requirements of GMP, reduce the operating steps of manual timing, and improve production efficiency.

[0016] Matters not covered in this utility model are known technologies.

[0017] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. The above is only the preferred implementation of the utility model. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the utility model, and these improvements and modifications should also be regarded as the protection scope of the utility model.

Claims

1. A three-door interlocking and timer linkage device, characterized in that: It includes three doors in the self-cleaning area, an interlock and timer control circuit, the three doors in the self-cleaning area include an unpacking room door A, an airlock door B, and a clean corridor door C, the interlock and timer control circuit includes a timer D, an unpacking room door opening button a1, an airlock door opening button b1, a clean corridor door opening button c1, an unpacking room door closing button a2, an airlock door closing button b2, and a clean corridor door closing button c2, the unpacking room door opening button a1 and the unpacking room door closing button a2 respectively control the opening and closing of the unpacking room door A, the airlock door opening button b1 and airlock door closing button b2 respectively control the opening and closing of the airlock door B, the clean corridor door opening button c1 and the clean corridor door closing button c2 respectively control the opening and closing of the clean corridor door C, the timer D is embedded in the wall separating the unpacking room and the airlock room, with display screens on both sides, and both sides are visible. When the material enters the airlock room and the airlock door B and the clean corridor door C are closed at the same time, the timer D receives an instruction to start the countdown. After the countdown ends, the airlock door B or the clean corridor door C can be opened.

2. A three-door interlocking and timer linkage device according to claim 1, characterized in that: The timer D is installed on the wall separating the unpacking room and the air lock room, embedded in the wall, with display screens on both sides, visible on both sides, and convenient for observing the self-cleaning time.

3. A three-door interlocking and timer linkage device according to claim 1, characterized in that: The timer D will be activated only when the airlock door B and the clean corridor door C are closed at the same time, and the countdown will start automatically.

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