Cross contamination prevention type delivery window
By designing a self-locking structure on the transfer window, the pollution problem of clean areas caused by staff misoperation is solved, and the effective isolation between the clean areas and the non-clean areas is achieved, cross-contamination is prevented, and the safety of the clean areas is improved.
Patent Information
- Application Number
- CN202422498804.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-16
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-10-16
AI Technical Summary
In actual operation, the existing transfer window may cause the staff to operate incorrectly, causing the clean area to be directly connected to the non-clean area, resulting in the problem of decreasing cleanliness.
An anti-cross contamination transmission window is designed, adopting a self-locking structure. Through the coordination of the rotating shaft, triggering slope and self-locking frame, it is ensured that when objects are transferred in the clean area and the non-clean area, only one door body can be opened and the other door body is locked to prevent both door bodies from opening at the same time.
It effectively avoids contamination of clean areas, ensures isolation between clean areas and non-clean areas, prevents cross-contamination, and improves the safety and stability of clean areas.
Smart Images
Figure CN223293608U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of clean room auxiliary equipment, in particular to an anti-cross contamination transfer window. Background Art
[0002] A cleanroom is a highly enclosed space where parameters such as air cleanliness, temperature, humidity, pressure, and noise are controlled as required. Due to their high cleanliness and airtightness, cleanrooms are widely used in the medical industry. For example, clean operating rooms used for routine surgeries are one such space. Cleanrooms primarily control microbial activity, primarily to prevent postoperative infection. Depending on the type of surgery, cleanrooms are categorized into the following: special cleanrooms, cleanrooms, general cleanrooms, and semi-cleanrooms.
[0003] In addition to meeting cleanliness requirements, clean operating rooms also require a floor plan divided into clean and non-clean areas. To prevent contamination, the clean and non-clean areas cannot be directly connected. However, sometimes, for practical reasons, it may be necessary to transfer items between the clean and non-clean areas. This is where a passbox is used. Using a passbox effectively reduces the number of times the clean area door needs to be opened, thereby minimizing contamination in the clean area.
[0004] A transfer window has two doors, one for the clean area and the other for the non-clean area. In practice, only one door should be open at a time to prevent direct communication between the two areas. However, in practice, staff may make an error and cause both doors to open simultaneously, which can seriously affect the cleanliness of the clean area. Utility Model Content
[0005] In view of the technical problems of the prior art, the utility model provides an anti-cross-contamination transfer window.
[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:
[0007] A cross-contamination prevention transfer window includes: a window body, a door body, and a self-locking structure; the door bodies are respectively arranged on both sides of the window body; the self-locking structure includes a rotating shaft, a self-locking frame, and a locking block; the rotating shaft is rotatably connected to the window body; the rotating shaft is fixedly connected to the door body; the rotating shaft is fixedly connected to the locking block; a triggering inclined surface is provided on the rotating shaft; one end of the triggering inclined surface is in contact with the self-locking frame; when the rotating shaft rotates, the other end of the triggering inclined surface rotates toward the self-locking frame, so that the self-locking frame extends into the locking block.
[0008] In actual application, when it is necessary to transfer items between the clean area and the non-clean area, the staff will first open the door body on one side. In the process of opening the door body, the door body will drive the rotating shaft to rotate with the rotating shaft itself as the axis. In the process of rotation of the rotating shaft, the trigger bevel will synchronously rotate relative to the self-locking frame, so that the other end of the trigger bevel gradually rotates to a state of fit with the self-locking frame. During this process, the self-locking frame will slide accordingly, thereby extending into the locking block. Thus, the door body on the other side is locked. At this time, the staff on the other side cannot open the corresponding door body. Only when the opened door body is closed again, that is, when the self-locking frame is reset, can the staff on the other side open the corresponding door body. Therefore, the utility model can effectively lock the door body, prevent the door bodies on both sides from being opened at the same time, and effectively prevent the clean area from being directly connected to the non-clean area, resulting in contamination of the clean area.
[0009] Furthermore, the self-locking frame is arranged between the two rotating shafts; the self-locking frame includes a connecting rod and a trigger rod; the trigger rod corresponds to the connecting rod; the end of the trigger rod is in contact with the trigger inclined surface; when the rotating shaft rotates, the other end of the trigger inclined surface rotates toward the trigger rod so that the trigger rod extends into the locking block.
[0010] Furthermore, a locking protrusion is provided at the end of the trigger rod; and a through hole corresponding to the locking protrusion is provided on the locking block.
[0011] Furthermore, a limit slider is provided on the connecting rod; the limit slider is provided along the vertical direction; and the cross section of the limit slider is T-shaped.
[0012] Furthermore, a return spring is provided on the connecting rod; the return spring is provided at one end of the connecting rod close to the ground; one end of the return spring is connected to the connecting rod, and the other end is connected to the window.
[0013] Furthermore, there are multiple trigger rods; the trigger rods are arranged from one end to the other end of the connecting rod. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 : Overall structure diagram.
[0015] Figure 2 : Structural diagram of self-locking structure.
[0016] In the figure: 1. Window; 2. Door; 3. Self-locking structure; 31. Rotating shaft; 32. Self-locking frame; 33. Locking block; 311. Triggering inclined plane; 321. Connecting rod; 322. Triggering rod; 3221. Locking protrusion; 3211. Limiting slider; 3212. Return spring. DETAILED DESCRIPTION
[0017] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
[0018] A cross-contamination-proof transfer window includes a window body 1, a door body 2, and a self-locking structure 3. The window body 1 has windows at both ends, a compartment for placing items inside, and a cavity for accommodating the self-locking structure 3.
[0019] The door bodies 2 are respectively arranged at the two ends of the window body 1 and correspond to the windows one by one. Simultaneously, the outer edges of the door bodies 2 match the windows, so that when the two door bodies 2 are closed at the same time, the compartment is a closed space.
[0020] The self-locking structure 3 includes a rotating shaft 31, a self-locking frame 32, and a locking block 33. The rotating shaft 31 is rotatably disposed within the cavity of the window body 1 and is fixedly connected to the door body 2. There are two rotating shafts 31, one for each door body 2. When the door body 2 rotates, the rotating shaft 31 rotates about the rotating shaft 31 itself. A locking block 33 is also fixed to the rotating shaft 31. There are multiple locking blocks 33, evenly spaced from one end of the rotating shaft 31 to the other. The locking blocks 33 have through-holes. A triggering slope 311 is also provided on the rotating shaft 31. This is a curved slope corresponding to the outer edge of the rotating shaft 31, with one end being relatively high and the other being relatively low. When the rotating shaft 31 rotates, the triggering slope 311 rotates synchronously with the rotating shaft 31. The self-locking frame 32 is disposed between the two rotating shafts 31. The self-locking frame 32 includes a connecting rod 321 and a trigger rod 322. There is one connecting rod 321, which is arranged in the vertical direction. A return spring 3212 is also provided at the end of the connecting rod 321, which is closest to the ground. One end of the return spring 3212 is connected to the connecting rod 321, and the other end is connected to the window 1. Therefore, when the connecting rod 321 moves downward in the vertical direction, it compresses the return spring 3212, causing it to accumulate elastic force. A limit slider 3211 is provided on the connecting rod 321. The limit slider 3211 is arranged in the vertical direction and has a T-shaped cross-section. A slot corresponding to the limit slider 3211 is defined within the cavity of the window 1. Therefore, under the restriction of the limit slider 3211, the connecting rod 321 can only move in the vertical direction. There are multiple trigger rods 322. The trigger rods 322 extend from one end of the connecting rod 321 to the other end. The trigger lever 322 is provided with a locking protrusion 3221 that corresponds to the through-hole in the locking block 33. Thus, the locking protrusion 3221 can extend into the through-hole in the locking block 33. It is worth noting that when the door 2 is closed, there is a certain distance between the locking protrusion 3221 and the locking block 33. Furthermore, one of the trigger levers 322 corresponds to the rotating shaft 31, and both ends of the trigger lever 322 respectively mate with the corresponding trigger slope 311. When the door 2 is closed, the end of the trigger lever 322 mates with the higher end of the trigger slope 311.
[0021] In actual application, the window body 1 is embedded in the partition wall between the clean area and the non-clean area. By default, both door bodies 2 are in a closed state. When it is necessary to transfer items between the clean area and the non-clean area, the staff first opens the door body 2 on one side. For the convenience of description below, the door body 2 on one side is called the action door body, and the door body 2 on the other side is called the static door body. When the action door body is opened, the action door body will drive the corresponding rotating shaft 31 to rotate with the rotating shaft 31 itself as the axis. During the rotation of the rotating shaft 31, the trigger bevel 311 will rotate synchronously with the rotating shaft 31. As a result, the lower end of the trigger bevel 311 gradually rotates toward the trigger rod 322. During this process, under the action of the trigger bevel 311, the trigger rod 322 is gradually pressed down, thereby driving the self-locking frame 32 as a whole to move downward in the vertical direction.
[0022] As the self-locking frame 32 moves downward as a whole, the locking protrusion 3221 gradually approaches the locking block 33. Due to the spacing between the locking protrusion 3221 and the locking block 33, the locking protrusion 3221 does not immediately enter the through-hole of the locking block 33. As the operating door body continues to open, the locking protrusion 3221 continues to move toward the locking block 33. Simultaneously, the locking block 33 corresponding to the operating door body rotates synchronously with the rotating shaft 31. Driven continuously by the operating door body, the locking block 33 corresponding to the operating door body eventually leaves the movement path of the locking protrusion 3221.
[0023] At this point, the opening process of the active door body continues. Because the locking block 33 corresponding to the active door body has already left the motion path of the locking protrusion 3221, the corresponding locking protrusion 3221 does not extend into the corresponding locking block 33. However, because the stationary door body has not moved during the aforementioned process, the locking block 33 corresponding to the stationary door body remains within the motion path of the corresponding locking protrusion 3221. Finally, when the active door body is fully opened, the locking protrusion 3221 extends into the locking block 33 corresponding to the stationary door body, thus completing the locking of the stationary door body. Therefore, as long as the active door body remains open, the stationary door body cannot be opened.
[0024] At the same time, as the self-locking frame 32 moves, it continuously compresses the return spring 3212, causing it to continuously accumulate elastic force. When the door is closed, the trigger slope 311 moves in the opposite direction, releasing the elastic force accumulated in the return spring 3212. Pushed by the return spring 3212, the trigger rod 322 is pushed back to its initial position, thereby unlocking the stationary door.
[0025] It is worth noting that the above description is for clarity, the movement process of each component is divided into multiple stages. In actual conditions, the opening process of the movement door body is an instantaneous process.
[0026] In summary, the utility model can effectively lock the doors on both sides of the transfer window, so that when the door on one side is opened, the door on the other side is locked, thereby effectively avoiding the problem of the doors on both sides being opened at the same time due to staff operating errors and the clean area being contaminated.
[0027] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.
Claims
1. A cross-contamination-proof transfer window, characterized by: include: Window (1), door (2), self-locking structure (3); The door bodies (2) are respectively arranged on both sides of the window body (1); The self-locking structure (3) comprises a rotating shaft (31), a self-locking frame (32), and a locking block (33); The rotating shaft (31) is rotatably connected to the window (1); The rotating shaft (31) is fixedly connected to the door body (2); The rotating shaft (31) is fixedly connected to the locking block (33); A triggering inclined surface (311) is provided on the rotating shaft (31); One end of the trigger slope (311) is in contact with the self-locking frame (32); When the rotating shaft (31) rotates, the other end of the triggering inclined surface (311) rotates toward the self-locking frame (32), so that the self-locking frame (32) extends into the locking block (33).
2. The cross-contamination-proof transfer window according to claim 1, characterized in that: The self-locking frame (32) is arranged between the two rotating shafts (31); The self-locking frame (32) includes a connecting rod (321) and a trigger rod (322); The trigger rod (322) corresponds to the connecting rod (321); The end of the trigger rod (322) is in contact with the trigger slope (311); When the rotating shaft (31) rotates, the other end of the triggering inclined surface (311) rotates toward the triggering rod (322), so that the triggering rod (322) extends into the locking block (33).
3. The anti-cross-contamination transfer window according to claim 2, characterized in that: The end of the trigger rod (322) is provided with a locking protrusion (3221); The locking block (33) is provided with a through hole corresponding to the locking protrusion (3221).
4. The cross-contamination-proof transfer window according to claim 2, characterized in that: A limiting slider (3211) is provided on the connecting rod (321); The limiting slider (3211) is arranged in the vertical direction; The cross section of the limiting slider (3211) is T-shaped.
5. The anti-cross-contamination transfer window according to claim 2, characterized in that: The connecting rod (321) is also provided with a return spring (3212); The return spring (3212) is arranged at one end of the connecting rod (321) close to the ground; One end of the return spring (3212) is connected to the connecting rod (321), and the other end is connected to the window (1).
6. The cross-contamination-proof pass-through window according to any one of claims 2 to 5, characterized in that: The trigger rods (322) are multiple in number; The trigger rod (322) is arranged from one end to the other end of the connecting rod (321).