Clean transfer window
By installing top and bottom ultraviolet germicidal lamps and mirrored stainless steel plates to reflect light inside the transfer window, the problem of sterilization dead spots at the bottom of items in the transfer window is solved, achieving all-round sterilization and improving the thoroughness and applicability of sterilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-14
- Publication Date
- 2026-05-08
AI Technical Summary
In existing transfer windows, the ultraviolet germicidal lamps are located at the top inside, resulting in sterilization dead zones at the bottom of the items, making it difficult to achieve all-round sterilization.
The first ultraviolet germicidal lamp group is set at the top and the second ultraviolet germicidal lamp group is set at the bottom in the transfer window. The light is reflected by the mirror stainless steel plate to form a three-dimensional cross ultraviolet irradiation network. Combined with the light-transmitting plate and ventilation components, all-round sterilization is achieved.
It achieves all-round sterilization of items, eliminates sterilization dead spots, and improves the thoroughness and applicability of sterilization.
Smart Images

Figure CN224214057U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of transfer window technology, specifically to a cleanroom transfer window. Background Technology
[0002] A pass-through window is an auxiliary device in cleanrooms, mainly used for transferring small items between clean areas and between clean and non-clean areas. This reduces the number of times the cleanroom doors are opened, minimizing contamination. The pass-through window is made of stainless steel, with a smooth and clean surface. The double doors are interlocked to effectively prevent cross-contamination. It is equipped with electronic or mechanical interlocking devices and ultraviolet germicidal lamps. In existing technologies, ultraviolet germicidal lamps are usually located at the inner top of the pass-through window. When sterilizing items, the bottom of the items is in contact with the inner bottom of the pass-through window, creating sterilization dead zones and resulting in incomplete sterilization. Therefore, a cleanroom-type pass-through window is proposed. Utility Model Content
[0003] The purpose of this utility model is to solve the technical problem that when ultraviolet germicidal lamps are usually installed at the inner top of the transfer window, the bottom of the items is in contact with the inner bottom of the transfer window, resulting in sterilization dead corners, incomplete sterilization, and difficulty in achieving all-round sterilization of items. This utility model provides a clean transfer window.
[0004] To achieve the above objectives, this utility model specifically adopts the following technical solution:
[0005] A cleanroom pass-through window includes a window body and door structures on both sides of the window body. A partition is installed inside the window body, dividing the interior into a sterilization chamber and a receiving chamber. A first ultraviolet germicidal lamp assembly is installed at the top of the sterilization chamber, and a second ultraviolet germicidal lamp assembly is installed at the bottom of the receiving chamber. A light-transmitting plate is installed on the partition. Mirrored stainless steel plates are installed at the four corners of the sterilization chamber, forming a 45-degree angle with the inner wall of the sterilization chamber. Two fixed cylinders, both communicating with the sterilization chamber, are installed on the window body, and ventilation components are installed inside the two fixed cylinders.
[0006] Furthermore, the mirror-finished stainless steel plate is constructed with multiple prism reflection patterns, and the prism reflection patterns are constructed in the form of equilateral triangles.
[0007] Furthermore, the ventilation component includes a filter screen, a blower, and a grid plate, all disposed in one of the fixed cylinders and arranged in sequence, and an activated carbon adsorption layer and an exhaust fan are disposed in the other fixed cylinder.
[0008] Furthermore, the light-transmitting plate is provided with multiple outer cylinders, and a column is slidably arranged inside the outer cylinder, with a compression spring between the two.
[0009] Furthermore, the free end of the column is hemispherical.
[0010] Furthermore, a through groove is provided on the light-transmitting plate, and the light-transmitting plate is slidably disposed in the through groove.
[0011] Furthermore, the cavity is rotatably equipped with two take-up rollers and two guide rollers. Protective cloth is wound around both take-up rollers in opposite directions. The free ends of the two protective cloths pass over the two guide rollers and are connected to the opposite sides of the light-transmitting plate.
[0012] Furthermore, each of the two take-up rollers is provided with a sprocket, and a chain connected to the light-transmitting plate is wound around the two sprockets.
[0013] The beneficial effects of this utility model are as follows:
[0014] In use, this invention uses light emitted from the first ultraviolet germicidal lamp group to irradiate the top of the item, and light emitted from the second ultraviolet germicidal lamp group to irradiate the bottom of the item through a light-transmitting plate. The light is refracted or reflected by the mirrored stainless steel plates at the four corners, forming a three-dimensional, intersecting ultraviolet irradiation network. This allows the light to irradiate the sides of the item, achieving all-round sterilization, eliminating sterilization dead corners, and making sterilization more thorough. Therefore, it is more versatile. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural view of the present invention;
[0016] Figure 2 This is a three-dimensional sectional view of the present invention;
[0017] Figure 3 This is a utility model Figure 2 Enlarged view of point A in the middle;
[0018] Figure 4 This is a utility model Figure 2 Enlarged view of point B in the middle;
[0019] Figure 5 This is a utility model Figure 2 Enlarged view of point C in the middle;
[0020] Figure 6 This is a utility model Figure 2 Enlarged view of point D in the middle;
[0021] Figure 7 This is a three-dimensional sectional view of the present invention from another perspective;
[0022] Figure 8 This is a utility model Figure 7 Enlarged view at point E in the middle;
[0023] Figure 9 This is a three-dimensional view of part of the structure of this utility model.
[0024] Reference numerals: 1. Window; 2. Door structure; 3. Partition; 4. Sterilization chamber; 5. Receiving chamber; 6. First ultraviolet germicidal lamp group; 7. Second ultraviolet germicidal lamp group; 8. Translucent plate; 9. Mirror stainless steel plate; 10. Fixing cylinder; 11. Prism reflective texture; 12. Filter screen; 13. Blower; 14. Grid plate; 15. Activated carbon adsorption layer; 16. Exhaust fan; 17. Outer cylinder; 18. Column; 19. Compression spring; 20. Through groove; 21. Take-up roller; 22. Guide roller; 23. Protective cloth; 24. Sprocket; 25. Chain. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.
[0026] like Figures 1-9 As shown, an embodiment of the present invention proposes a cleanroom pass-through window, including a window body 1 and door structures 2 disposed on both sides of the window body 1. The window body 1 is horizontal and has openings on both sides. The door structure 2 includes a door body installed on the opening side of the window body 1 by hinges. An observation window is provided on the door body. The door body and the window body 1 are locked together by a mechanical lock.
[0027] The distinguishing technical features of this utility model also include: a partition 3 is provided inside the window 1, the partition 3 is fixed inside the window 1, and the partition 3 divides the interior of the window 1 into a sterilization chamber 4 and a receiving chamber 5, the sterilization chamber 4 and the receiving chamber 5 are distributed vertically at intervals, a first ultraviolet germicidal lamp group 6 is provided at the inner top of the sterilization chamber 4, the first ultraviolet germicidal lamp group 6 is fixed at the inner top of the sterilization chamber 4, the first ultraviolet germicidal lamp group 6 includes multiple ultraviolet germicidal lamps that are all horizontally oriented and evenly distributed, a second ultraviolet germicidal lamp group 7 is provided at the inner bottom of the receiving chamber 5, the second ultraviolet germicidal lamp group 7 is fixed at the inner bottom of the receiving chamber 5, the second ultraviolet germicidal lamp group 7... 7 includes multiple horizontally oriented and evenly distributed ultraviolet germicidal lamps. A light-transmitting plate 8 is provided on the partition 3. The light-transmitting plate 8 is horizontal. Mirror stainless steel plates 9 are provided at the four corners of the sterilization chamber 4. The mirror stainless steel plates 9 are horizontal and fixed inside the sterilization chamber 4. The mirror stainless steel plates 9 are inclined at a 45-degree angle to the inner wall of the sterilization chamber 4. Two fixed cylinders 10 are provided on the window 1, both of which are connected to the sterilization chamber 4. The two fixed cylinders 10 are fixed on opposite sides of the window 1. Ventilation components are provided inside the two fixed cylinders 10. The ventilation components ventilate the inside of the sterilization chamber 4 and remove odors from the air, thereby achieving a further sterilization effect.
[0028] Initially, both door structures 2 are closed. In use, one door structure 2 is opened, the item is placed on the light-transmitting plate 8, and then this door structure 2 is closed, activating the first ultraviolet germicidal lamp group 6 and the second ultraviolet germicidal lamp group 7. The light emitted by the first ultraviolet germicidal lamp group 6 illuminates the top of the item, and the light emitted by the second ultraviolet germicidal lamp group 7 passes through the light-transmitting plate 8 to illuminate the bottom of the item. At the same time, the light is refracted or reflected by the mirrored stainless steel plates 9 at the four corners, forming a three-dimensional cross-shaped ultraviolet irradiation network, so that the light can illuminate the sides of the item to achieve all-round sterilization. The sterilization chamber 4 is ventilated by the ventilation component, and odors in the air are removed, further enhancing the sterilization effect. Afterward, the other door structure 2 is opened, the item is removed from the light-transmitting plate 8, and finally, the door structure 2 is closed.
[0029] In summary, when this utility model is in use, the light emitted by the first ultraviolet germicidal lamp group 6 illuminates the top of the item, and the light emitted by the second ultraviolet germicidal lamp group 7 passes through the light-transmitting plate 8 to illuminate the bottom of the item. The light is refracted or reflected by the mirrored stainless steel plates 9 at the four corners, forming a three-dimensional cross ultraviolet irradiation network. This allows the light to illuminate the sides of the item, achieving all-round sterilization, eliminating sterilization dead corners, and making sterilization more thorough. Therefore, it is more applicable.
[0030] like Figure 3 As shown, a further technical solution of this utility model is disclosed. Multiple prism reflection patterns 11 are constructed on the mirror stainless steel plate 9. The prism reflection patterns 11 are formed by laser etching or imprinting process. The prism reflection patterns 11 are constructed in the shape of equilateral triangles.
[0031] Referring to the above, when in use, multiple prism reflective patterns 11 can achieve multi-angle refraction of light, enhancing the ultraviolet scattering effect.
[0032] like Figures 5-6 As shown, the specific structure of the ventilation component of this utility model is disclosed. The ventilation component includes a filter screen 12, a blower 13 and a grid plate 14, which are arranged in sequence in one of the fixed cylinders 10. The filter screen 12, the blower 13 and the grid plate 14 are arranged close to the sterilization chamber 4. An activated carbon adsorption layer 15 and an exhaust fan 16 are arranged in the other fixed cylinder 10. The activated carbon adsorption layer 15 is close to the sterilization chamber 4.
[0033] Referring to the above, during use, the blower 13 and the exhaust fan 16 are operated. The blower 13 introduces outside air into the fixed cylinder 10 and sends it into the sterilization chamber 4. During this process, dust and impurities in the outside air are filtered through the filter screen 12, and the air enters the sterilization chamber 4 more evenly through the grid plate 14. The exhaust fan 16 exhausts the air inside the sterilization chamber 4 through the fixed cylinder 10. During this process, odors in the air can be removed through the activated carbon adsorption layer 15, thereby playing a further sterilization role.
[0034] like Figure 4 As shown, a further technical solution of the present utility model is disclosed. A plurality of outer cylinders 17 are provided on the light-transmitting plate 8. The outer cylinders 17 are vertical and fixed on the light-transmitting plate 8. The plurality of outer cylinders 17 are arranged in an array. A column rod 18 is slidably provided inside the outer cylinder 17 and a compression spring 19 is provided between the two. The column rod 18 slides in the vertical direction. The compression spring 19 is vertical and its two ends are fixedly connected to the outer cylinder 17 and the column rod 18 respectively.
[0035] Referring to the above, in the initial state, the column 18 is in the initial position and the compression spring 19 is in the natural state. When an item is placed on the light-transmitting plate 8, the item will contact and overlap with multiple columns 18. Through gravity, the column 18 is forced to slide downward to its limit position, and the compression spring 19 is squeezed to position items of different shapes. This allows the bottom of the item to be in a relatively suspended state, ensuring airflow. Conversely, when the column 18 is removed from the light-transmitting plate 8, the compression spring 19 returns to its natural state, and the column 18 slides upward to the initial position.
[0036] like Figure 4 As shown, a further technical solution of this utility model is disclosed, wherein the free end of the column rod 18 is hemispherical;
[0037] Referring to the above, when the item comes into contact with the post 18, the hemispherical design can prevent scratches on the surface of the item.
[0038] like Figure 8 As shown, a further technical solution of this utility model is disclosed. A through groove 20 is provided on the light-transmitting plate 8. The sterilization chamber 4, the through groove 20 and the receiving chamber 5 are connected in sequence. The light-transmitting plate 8 is slidably disposed in the through groove 20 and slides in the horizontal direction.
[0039] Referring to the above, when removing an item from the light-transmitting plate 8, the light-transmitting plate 8 is slid within the through groove 20 before the item is removed. Compared to the existing method of dragging and removing items, this method does not damage the surface of the item or the transfer window.
[0040] like Figure 8As shown, a further technical solution of the present invention is disclosed. Two take-up rollers 21 and two guide rollers 22 are rotatably arranged in the receiving cavity 5. The take-up rollers 21 and the guide rollers 22 are both in the horizontal direction. Protective cloth 23 is wound on both take-up rollers 21 and the winding directions of the two are opposite. The free ends of the two protective cloths 23 pass around the two guide rollers 22 respectively and are connected to the opposite sides of the light-transmitting plate 8 respectively.
[0041] Referring to the above, when the light-transmitting plate 8 slides, it drives the two take-up rollers 21 to rotate synchronously. Since the winding directions of the two protective cloths 23 are opposite, one take-up roller 21 tightens the protective cloth 23 on it, and the other take-up roller 21 loosens the protective cloth 23 on it. The light-transmitting plate 8 and the two protective cloths 23 together block the through groove 20, which does not affect the normal sliding of the light-transmitting plate 8, and at the same time keeps the sterilization chamber 4 clean.
[0042] like Figure 9 As shown, a further technical solution of the present invention is disclosed. Each of the two take-up rollers 21 is provided with a sprocket 24. The sprocket 24 is vertical and fixed on the take-up roller 21. A chain 25 connected to the light-transmitting plate 8 is wound around the two sprockets 24. The chain 25 is fixedly connected to the light-transmitting plate 8.
[0043] Referring to the above, when the light-transmitting plate 8 slides, it drives the chain 25 to rotate, which in turn drives the two sprockets 24 to rotate synchronously. The two sprockets 24 then drive the two take-up rollers 21 to rotate, thus making it easier to drive the two take-up rollers 21 to rotate synchronously.
[0044] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A cleanroom pass-through window, comprising a window body (1) and door structures (2) disposed on both sides of the window body (1), characterized in that, The window (1) is provided with a partition (3), which divides the interior of the window (1) into a sterilization chamber (4) and a receiving chamber (5). The top of the sterilization chamber (4) is provided with a first ultraviolet sterilization lamp group (6), and the bottom of the receiving chamber (5) is provided with a second ultraviolet sterilization lamp group (7). A light-transmitting plate (8) is provided on the partition (3). Mirror stainless steel plates (9) are provided at the four corners of the sterilization chamber (4). The mirror stainless steel plates (9) are inclined at a 45-degree angle to the inner wall of the sterilization chamber (4). The window (1) is provided with two fixed cylinders (10) that are connected to the sterilization chamber (4). Ventilation components are provided in the two fixed cylinders (10).
2. The cleanroom pass-through window according to claim 1, characterized in that, The mirror stainless steel plate (9) has multiple prism reflection patterns (11) formed in the shape of an equilateral triangle.
3. The cleanroom pass-through window according to claim 1, characterized in that, The ventilation components include a filter screen (12), a blower (13), and a grid plate (14) arranged in sequence in one of the fixed cylinders (10), and an activated carbon adsorption layer (15) and an exhaust fan (16) arranged in the other fixed cylinder (10).
4. The cleanroom pass-through window according to claim 1, characterized in that, The light-transmitting plate (8) is provided with multiple outer cylinders (17), and a column rod (18) is slidably arranged inside the outer cylinder (17) and a compression spring (19) is arranged between the two.
5. The cleanroom pass-through window according to claim 4, characterized in that, The free end of the column (18) is hemispherical.
6. The cleanroom pass-through window according to claim 1, characterized in that, The light-transmitting plate (8) has a through groove (20) and the light-transmitting plate (8) is slidably disposed in the through groove (20).
7. The cleanroom pass-through window according to claim 6, characterized in that, The cavity (5) is rotatably provided with two take-up rollers (21) and two guide rollers (22). The two take-up rollers (21) are each wrapped with a protective cloth (23) in opposite directions. The free ends of the two protective cloths (23) pass around the two guide rollers (22) and are respectively connected to the opposite sides of the light-transmitting plate (8).
8. The cleanroom pass-through window according to claim 7, characterized in that, Both of the two take-up rollers (21) are provided with sprockets (24), and the two sprockets (24) are wound with chains (25) connected to the light-transmitting plate (8).