Clean room door and clean room

By setting the first and second connecting structures on the clean room door, the door panel is rotated and automatically closed, which solves the problem that the existing clean room door cannot be switched and automatically closed in two directions, simplifies the operation process and ensures sealing.

CN223202970UActive Publication Date: 2025-08-08SUZHOU DASHAN PURIFICATION TECH CO LTD
View PDF 3 Cites 0 Cited by

Patent Information

Application Number
CN202422467348.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-12
Publication Date
2025-08-08
Estimated Expiration
2034-10-12

AI Technical Summary

Technical Problem

The existing clean room door cannot open and close the door in two directions and cannot be automatically closed, so it requires manual operation.

Method used

The first connecting structure and the second connecting structure are adopted, including the first rotating shaft and the second rotating shaft, to realize the rotation of the door panel and have a tendency to automatically close after opening, and to cancel the traditional door lock and door closeter.

Benefits of technology

It realizes the two-way forward and reverse switch and automatic closing of clean room doors to ensure sealing, cancels the settings of traditional door locks and door closers, and simplifies operation.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223202970U_ABST
    Figure CN223202970U_ABST
Patent Text Reader

Abstract

The utility model discloses a clean room door which comprises a door plate, a first connecting structure arranged between the upper portion of the door plate and a door frame and / or a second connecting structure arranged on the lower portion of the door plate. The first connecting structure and / or the second connecting structure are / is used for achieving rotation of the door plate and have the tendency of rotating and closing after the door plate is opened, the first connecting structure comprises a first rotating shaft, and the second connecting structure comprises a second rotating shaft; the axis of the first rotating shaft and the axis of the second rotating shaft coincide and are located in the vertical plane where the door plate is located. According to the clean room door, by arranging the first connecting structure and the second connecting structure, rotation of the door plate is achieved, and opening and closing of the door are achieved. Meanwhile, the first connecting structure and / or the second connecting structure can have the tendency of rotating and closing after the door plate is opened, so that the clean room door can be opened and closed forwards and reversely in two directions and can be closed automatically after being opened, and the sealing performance is guaranteed.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model belongs to the technical field of clean rooms, and in particular relates to a clean room door which can be automatically closed and can be opened and closed in both directions, and a clean room comprising the clean room door. Background Art

[0002] Existing cleanroom doors all use conventional door configurations, equipped with locks and hinges. When entering or exiting the cleanroom, personnel must manually unlock the door, push the door, and then relock it. Doors equipped with door closers, however, are not designed to be opened or closed in either direction, requiring manual operation.

[0003] For example, the Chinese utility model patent with publication number CN213205424U, entitled "A Clean Room Door", the Chinese invention patent with publication number CN101699015B, entitled "A Flat-Hinged Airtight Door", and the Chinese utility model patent with publication number CN219932011U, entitled "A Clean Door Frame Structure", can only realize one-way opening and closing of doors, and cannot achieve automatic door closing without an additional door closer. Summary of the Invention

[0004] In view of this, in order to overcome the defects in the prior art, the purpose of the present invention is to provide a clean room door that can be automatically closed and can be opened and closed in two directions.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A clean room door comprises a door panel, a first connecting structure arranged between the upper portion of the door panel and the door frame, and / or a second connecting structure arranged at the lower portion of the door panel, wherein the first connecting structure and / or the second connecting structure are used to realize the rotation of the door panel and have a tendency to rotate and close after the door panel is opened, the first connecting structure comprises a first rotating shaft, the second connecting structure comprises a second rotating shaft, and the center lines of the first rotating shaft and the second rotating shaft coincide and are located in the vertical plane where the door panel is located.

[0007] According to some preferred embodiments of the present invention, the bottom portion of the first rotating shaft is fixedly connected to the top portion of the door panel and rotates with the door panel; the top portion of the first rotating shaft extends upward into the door frame. That is, the upper portion of the door panel is fixedly connected to the first rotating shaft, and the first rotating shaft achieves a rotational connection with the door frame. When the door panel rotates, the first rotating shaft rotates along its axis.

[0008] According to some preferred embodiments of the present invention, a rotating member is provided at the top of the first rotating shaft, a support member is provided on the door frame, the top of the first rotating shaft passes through the support member, and the rotating member is located above the support member. Both ends of the support member are connected to the door frame. The rotating member and the support member enable the door panel to be lifted and rotated at its upper portion.

[0009] According to some preferred embodiments of the present invention, the support member has a horizontally lowest point and extends from the lowest point to both sides and upward, with the extension direction being within the plane of the door frame. The lowest point of the support member is a line or a plane, and the extension direction is perpendicular to the vertical plane of the door panel.

[0010] According to some preferred embodiments of the present invention, the support member is configured to have a tendency to move toward the lowest point of the support member when the rotating member is located at a position other than the lowest point. The purpose of the support member and the rotating member is to ensure that when the rotating member moves to a position other than the lowest point, the rotating member, driven by the gravity of the door panel, tends to move toward the lowest point of the support member. This tendency enables the door panel to automatically close without relying on an additional door closer. When the rotating member reaches the lowest point, door closing is complete.

[0011] According to some preferred implementation aspects of the present invention, the support member includes two symmetrically arranged inclined plates, and the angle between the inclined plates and the horizontal plane is 5-30°, that is, the support member gradually rises from the middle to both sides, and the first rotating shaft passes through the lowest point (middle) of the support member to achieve the above-mentioned rotating member having a tendency to move toward the lowest point.

[0012] According to some preferred implementation aspects of the present invention, the two inclined plates have a mounting portion on one side away from each other, and the mounting portion is used to be connected to the door frame.

[0013] According to some preferred implementation aspects of the present invention, a dust cover is installed on the mounting portion for covering the support member and the rotating member.

[0014] According to some preferred embodiments of the present invention, a crossbar is disposed on top of the first rotating shaft, with the rotating members disposed at both ends of the crossbar. The support member is larger than the area within which the two rotating members rotate once. The rotating members are rotatably mounted at the ends of the crossbar and are symmetrically arranged to provide uniform force distribution. The projection of the support member on a horizontal plane is rectangular or circular. The first rotating shaft extends through the center of the support member.

[0015] According to some preferred implementation aspects of the present invention, the crossbar and the first rotating shaft are arranged vertically, and the first rotating shaft rotates along its axis to drive the crossbar to rotate in the horizontal plane, and drives the rotating member to rotate on the supporting member.

[0016] When the rotating member is at its lowest point, the cleanroom door is in the closed state, the door panel and door frame are located in the same vertical plane, and the first rotating shaft and door panel are at their lowest horizontal position. When the door needs to be opened, force is applied to the door panel, causing it to rotate, the first rotating shaft rotates, and the crossbar rotates, driving the rotating member to rotate on the support member, moving from the lowest point to both sides. The horizontal position of the rotating member, the first rotating shaft, and the door panel is raised. At this time, the projections of the door panel and door frame on the horizontal plane are set at an angle, and the cleanroom door is in the open state. When the force acting on the door panel is removed, driven by the deadweight of the door panel and based on the structural setting of the support member, the rotating member automatically moves to the lowest point of the support member, driving the door panel to gradually close via the first rotating shaft, and the cleanroom door returns to the closed state.

[0017] According to some preferred embodiments of the present invention, the second connecting structure includes a first connector disposed at the lower portion of the door panel and a second connector disposed on the door frame. The lower portion of the second rotating shaft is connected to the second connector, and the upper portion of the second rotating shaft extends upward into the first connector. The first connector moves synchronously with the door panel. Specifically, the first connector is fixed to the lower portion of the door panel and rotates with it, while the second rotating shaft and the second connector are fixed and rotate relative to the first connector. The second connecting structure supports the door panel and also has an automatic door closing function, enabling the clean room door to automatically close after opening.

[0018] According to some preferred embodiments of the present invention, an elastic member is disposed within the first connector, and a first receiving groove for accommodating a portion of the second rotating shaft and a second receiving groove for accommodating the elastic member are defined within the first connector. A fixing member is disposed at the end of the second receiving groove, and one end of the elastic member acts on the second rotating shaft, while the other end acts on the fixing member. When the door panel rotates to open, the first connector rotates, compressing the elastic member via the second rotating shaft, imparting an elastic restoring force to the elastic member. The elastic member's two ends act on the second rotating shaft and the first connector, respectively, causing the door panel to tend to close automatically, thereby achieving automatic closure.

[0019] According to some preferred embodiments of the present invention, the second rotating shaft has a notch on the side facing the elastic member, and the elastic member has a sleeve on the end closest to the second rotating shaft, with a portion of the sleeve accommodated in the notch. The end of the elastic member is located within the sleeve, preventing direct contact between the elastic member and the second rotating shaft, which could potentially prevent the elastic member and the second rotating shaft from becoming stuck when the first connector rotates. The notch is greater than the diameter of the sleeve, preventing the sleeve from driving the second rotating shaft upward and causing it to disengage from the second connector.

[0020] Preferably, the edge of the notch is curved to prevent the second shaft from becoming stuck with the elastic member or sleeve when the first connector rotates. Preferably, the notch is formed by cutting off a portion of the second shaft in half. That is, when the door is closed, the surface of the notch opposite the sleeve is flat, allowing the notch and the elastic member to easily return the first connector to its original position, thereby achieving automatic door closing.

[0021] According to some preferred embodiments of the present invention, the second rotating shaft includes a fixed portion for securing to the second connector and a rotating portion for engaging with the elastic member. The notch is formed in the rotating portion, and the rotating portion is received in the first receiving slot. The fixed portion is rectangular or polygonal in shape to secure the second connector and the second rotating shaft, preventing the second rotating shaft from rotating. During installation, the lower portion of the second rotating shaft is inserted into the corresponding hole in the second connector under the weight of the door panel.

[0022] According to some preferred embodiments of the present invention, the door frame includes two upright posts and a crossbeam located between the tops of the two upright posts, the first connecting structure is disposed between the door panel and the crossbeam, the lower end of one of the upright posts comprises a support base, and the second connecting structure is disposed between the door panel and the support base. The support base is formed by extending from the lower end of the upright post toward the door panel in the same direction as the crossbeam.

[0023] According to some preferred implementation aspects of the present invention, the edge of the door panel has a sealing mechanism, such as a sealing ring or a sealing strip.

[0024] According to some preferred embodiments of the present invention, the clean room door has a closed state and an open state. In the closed state, the door panel and door frame are located in the same vertical plane. In the open state, the projections of the door panel and door frame on a horizontal plane form an angle. In the open state, the door panel and door frame are configured to open and close the door in both directions and automatically close the door, thanks to the deadweight of the door panel and the action of the first and second connecting structures.

[0025] The utility model also provides a clean room comprising the clean room door described above.

[0026] Due to the implementation of the above technical solution, the present invention has the following advantages over the prior art: The clean room door of the present invention eliminates the need for a traditional door lock and separate door closer. By providing a first connecting structure and a second connecting structure, the door panel can be rotated and opened and closed. Furthermore, one or both of the first connecting structure and / or the second connecting structure can provide a tendency for the door panel to rotate and close after opening, enabling the clean room door of the present invention to be opened and closed in both directions, and to automatically close after opening, ensuring a tight seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 This is a schematic diagram of the three-dimensional structure of the clean room door in the closed state in the preferred embodiment of the present utility model;

[0029] Figure 2 This is a schematic diagram of the three-dimensional structure of the clean room door in the open state in the preferred embodiment of the present utility model;

[0030] Figure 3 This is a schematic diagram of the three-dimensional structure of the first connecting structure in the preferred embodiment of the present utility model when the clean room door is closed;

[0031] Figure 4 This is a schematic diagram of the three-dimensional structure of the first connecting structure in the preferred embodiment of the present utility model when the clean room door is open;

[0032] Figure 5 This is a schematic diagram of the three-dimensional structure of the first connecting structure in another preferred embodiment of the present invention when the clean room door is closed;

[0033] Figure 6 This is a schematic diagram of the three-dimensional structure of the second connecting structure in the preferred embodiment of the present utility model when the clean room door is closed;

[0034] Figure 7 This is a schematic diagram of the three-dimensional structure of the first connector in a preferred embodiment of the present utility model;

[0035] Figure 8 This is a schematic diagram of the cross-sectional structure of the first connector in a preferred embodiment of the present utility model;

[0036] Figure 9 This is a schematic diagram of the three-dimensional structure of the second rotating shaft in the preferred embodiment of the present utility model;

[0037] In the accompanying drawings: clean room door-1, door panel-2, door frame-3, column-31, beam-32, first connecting structure-41, second connecting structure-42, first rotating shaft-51, rotating member-52, supporting member-53, cross bar-54, mounting portion-55, mounting member-56, first connecting body-61, second connecting body-62, second rotating shaft-63, fixing portion-631, rotating portion-632, elastic member-64, second accommodating groove-65, fixing member-66, notch-67, sleeve-68, support seat-69, observation window-7, handle-8, sealing strip-9. DETAILED DESCRIPTION

[0038] In order to help those skilled in the art better understand the technical solutions of the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0039] like Figure 1-9 As shown, the cleanroom of this embodiment is provided with a cleanroom door 1. The cleanroom door 1 includes a door panel 2, a first connecting structure 41 disposed between the upper portion of the door panel 2 and the door frame 3, and a second connecting structure 42 disposed at the lower portion of the door panel 2. The first connecting structure 41 and the second connecting structure 42 are used to enable the door panel 2 to rotate and have a tendency to rotate and close after the door panel 2 is rotated open. The door panel 2 is primarily made of metal and is also provided with a handle 8 and a transparent observation window 7. The edge of the door panel 2 has a sealing mechanism, such as a sealing ring or silicone sealing strip 9. The door frame 3 includes two columns 31 and a crossbeam 32 located between the tops of the two columns 31. The first connecting structure 41 is disposed between the door panel 2 and the crossbeam 32. The lower end of one of the columns 31 has a support seat 69. The second connecting structure 42 is disposed between the door panel 2 and the support seat 69. The support seat 69 is formed by extending from the lower end of the column 31 toward the door panel 2, extending in the same direction as the crossbeam 32.

[0040] The first connecting structure 41 includes a first rotating shaft 51, a crossbar 54 provided at the upper end of the first rotating shaft 51, rotating members 52 located at both ends of the crossbar 54, and support members 53 fixed to the door frame 3. The support members 53 are connected to the door frame 3 at both ends near the pillars 31. The top of the first rotating shaft 51 passes through the support members 53, and the rotating member 52 is located above the support members 53. The rotating members 52 and the support members 53 are used to lift and rotate the door panel 2 from the upper portion of the door panel 2.

[0041] The bottom of the first rotating shaft 51 is fixedly connected to the top of the door panel 2 via a mounting member 56 and rotates with the door panel 2. The top of the first rotating shaft 51 extends upward into the door frame 3. In other words, the upper portion of the door panel 2 is fixedly connected to the first rotating shaft 51, and the first rotating shaft 51 realizes a rotational connection with the door frame 3. When the door panel 2 rotates, the first rotating shaft 51 rotates along its axis.

[0042] The support member 53 has a lowest point in the horizontal position, and extends from the lowest point to both sides and upward, and the extension direction is within the plane where the door frame 3 is located. The support member 53 is used to have a tendency to move toward the lowest point when the rotating member 52 is located at a position other than the lowest point of the support member 53. The lowest point of the support member 53 is a line or a surface, and its extension is perpendicular to the vertical plane where the door panel 2 is located. The purpose of setting the support member 53 and the rotating member 52 is that when the rotating member 52 moves to a position other than the lowest point, the rotating member 52 has a tendency to move toward the lowest point of the support member 53 under the action of the gravity of the door panel 2. By utilizing this tendency, the door panel 2 can achieve automatic closing without relying on an additional door closer. When the rotating member 52 moves to the lowest point, the door closing is completed.

[0043] Specifically, the support member 53 includes two symmetrically arranged inclined plates, and the angle between the inclined plates and the horizontal plane is 5-30°, that is, the top surface of the support member 53 gradually rises from the middle to both sides, and the first rotating shaft 51 passes through the lowest point (middle) of the support member 53 to achieve the above-mentioned rotating member 52 having a tendency to move toward the lowest point.

[0044] The crossbar 54 and the first rotating shaft 51 are arranged perpendicularly. Rotation of the first rotating shaft 51 along its axis drives the crossbar 54 in the horizontal plane, which in turn drives the rotating member 52 on the support member 53. The rotating members 52 are symmetrically positioned at the ends of the crossbar 54 to ensure uniform force distribution. The support member 53 is larger than the area within which the two rotating members 52 rotate once. The projection of the support member 53 on the horizontal plane is preferably rectangular or circular. The first rotating shaft 51 passes through the center of the support member 53.

[0045] The two inclined plates have a mounting portion 55 on one side away from each other, and the mounting portion 55 is used to be connected to the door frame 3. Preferably, a dust cover is installed on the mounting portion 55 to cover the support member 53 and the rotating member 52.

[0046] The second connecting structure 42 includes a second rotating shaft 63, a first connecting body 61 disposed at the lower portion of the door panel 2, and a second connecting body 62 disposed on the support base 69 of the door frame 3. The second connecting body 62 is located below the first connecting body 61. The axis lines of the first rotating shaft 51 and the second rotating shaft 63 coincide and are located in the vertical plane of the door panel 2.

[0047] The lower portion of the second rotating shaft 63 is connected to the second connector 62, and the upper portion of the second rotating shaft 63 extends upward into the first connector 61. The first connector 61 moves synchronously with the door panel 2. Specifically, the first connector 61 is fixed to the lower portion of the door panel 2 and rotates with it, while the second rotating shaft 63 and the second connector 62 are fixed, and the second rotating shaft 63 and the first connector 61 rotate relative to each other. The second connecting structure 42 is used to support the door panel 2 and also has an automatic door closing function, allowing the clean room door 1 to automatically close after opening.

[0048] An elastic member 64 is disposed within the first connector 61. A first receiving groove for accommodating a portion of the second rotating shaft 63 and a second receiving groove 65 for accommodating the elastic member 64 are defined within the first connector 61. A fixing member 66 is disposed at the end of the second receiving groove 65. One end of the elastic member 64 acts on the second rotating shaft 63, and the other end acts on the fixing member 66. When the door panel 2 rotates to open, the first connector 61 rotates, compressing the elastic member 64 via the second rotating shaft 63, imparting an elastic restoring force to the elastic member 64. The elastic member's two ends act on the second rotating shaft 63 and the first connector 61, respectively, causing the door panel 2 to tend to close automatically, achieving automatic closure.

[0049] The second rotating shaft 63 has a notch 67 on the side facing the elastic member 64. The elastic member 64 has a sleeve 68 on the end closest to the second rotating shaft 63, with a portion of the sleeve 68 received in the notch 67. The sleeve 68 is closed on the end closest to the second rotating shaft 63. The edge of the notch 67 is curved to prevent the second rotating shaft 63 from getting stuck with the elastic member 64 or the sleeve 68 when the first connector 61 rotates.

[0050] Preferably, the notch 67 is formed by cutting off half of a portion of the second rotating shaft 63, that is, when the door is closed, the surface of the notch 67 opposite to the sleeve 68 is a plane, so that the first connecting body 61 can be easily returned to the original position through the notch 67 and the elastic member 64 to achieve automatic door closing.

[0051] The end of the elastic member 64 is located within the sleeve 68, preventing the elastic member 64 from directly contacting the second rotating shaft 63 and causing the elastic member 64 and the second rotating shaft 63 to become stuck when the first connecting body 61 rotates. The height of the notch 67 is greater than the diameter of the sleeve 68, preventing the sleeve 68 from driving the second rotating shaft 63 upward and causing it to disengage from the second connecting body 62.

[0052] The second rotating shaft 63 includes a fixed portion 631 for securing to the second connector 62 and a rotating portion 632 for engaging with the elastic member 64. A notch 67 is defined in the rotating portion 632, which is received in the first receiving slot. The fixed portion 631 is rectangular or polygonal in shape, securing the second connector 62 and the second rotating shaft 63 and preventing rotation. During installation, the lower portion of the second rotating shaft 63 is inserted into the corresponding hole in the second connector 62 under the weight of the door panel 2.

[0053] The clean room door 1 in this embodiment has a closed state and an open state. In the closed state, the door panel 2 and door frame 3 are located in the same vertical plane. In the open state, the projections of the door panel 2 and door frame 3 on the horizontal plane form an angle. In the open state, the weight of the door panel 2, under the action of the first connecting structure 41 and the second connecting structure 42, realizes bidirectional opening and closing and automatic closing.

[0054] The opening and closing process of the clean room door 1 in this embodiment is as follows: When the rotating member 52 is at its lowest point, the clean room door 1 is in the closed state, the door panel 2 and the door frame 3 are located in the same vertical plane, and the first rotating shaft 51 and the door panel 2 are at their lowest horizontal position. When the door needs to be opened, force acts on the door panel 2, pushing it to rotate. The first rotating shaft 51 rotates, and the crossbar 54 rotates, driving the rotating member 52 to rotate on the support member 53, moving it from its lowest point to both sides. The horizontal position of the rotating member 52, the first rotating shaft 51, and the door panel 2 is raised. At this time, the projections of the door panel 2 and the door frame 3 on the horizontal plane are set at an angle, and the clean room door 1 is in the open state.

[0055] When the force acting on the door panel 2 is removed, driven by the weight of the door panel 2 and based on the structural setting of the support member 53, the rotating member 52 automatically moves to the lowest point of the support member 53, and drives the door panel 2 to gradually close through the first rotating shaft 51, and the clean room door 1 returns to the closed state.

[0056] Since the level of the door panel 2 will be increased during the door opening process, the clean room door 1 in this embodiment is also suitable for places with uneven ground. At the same time, the sealing strip 9 at the bottom of the clean room door 1 is thicker to ensure a sealing effect.

[0057] The cleanroom door 1 of this embodiment eliminates the need for traditional door locks and other door closers. Instead, the first connecting structure 41 and the second connecting structure 42 are provided to enable the door panel 2 to rotate and open. Furthermore, the first connecting structure 41 and the second connecting structure 42 enable the door panel 2 to rotate and close after being opened, allowing the cleanroom door 1 of this invention to be opened and closed in both directions, and to automatically close after opening, ensuring a tight seal. When entering or exiting, personnel do not need to touch the handle 8 or other devices to open the door. Instead, they can open the door by pushing the door panel 2 with various parts of their body, both inside and outside the cleanroom. Furthermore, based on the structure of the cleanroom door 1 of this embodiment, it can be installed near any column 31, allowing the door to open leftward or rightward depending on the actual situation.

[0058] It should be noted that the first connecting structure and the second connecting structure in this embodiment both have the effect of automatically closing the door panel after it is opened. In other embodiments, the first connecting structure can be selected to have only a rotating shaft and the second connecting structure to have the effect of automatically closing the door, or the second connecting structure can be selected to have only a rotating shaft and the first connecting structure to have the effect of automatically closing the door. This is also within the scope of protection of the utility model of this application.

[0059] The above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A clean room door, characterized in that: It includes a door panel, a first connecting structure arranged between the upper part of the door panel and the door frame, and / or a second connecting structure arranged at the lower part of the door panel. The first connecting structure and / or the second connecting structure are used to realize the rotation of the door panel and have a tendency to rotate and close after the door panel is rotated open. The first connecting structure includes a first rotating shaft, and the second connecting structure includes a second rotating shaft. The center lines of the first rotating shaft and the second rotating shaft coincide and are located in the vertical plane where the door panel is located.

2. The clean room door according to claim 1, characterized in that The bottom of the first rotating shaft is fixedly connected to the top of the door panel and rotates along with the door panel; the top of the first rotating shaft extends upward into the door frame.

3. The clean room door according to claim 1, characterized in that A rotating member is provided on the top of the first rotating shaft, a supporting member is provided on the door frame, the top of the first rotating shaft passes through the supporting member, and the rotating member is located above the supporting member.

4. The clean room door according to claim 3, characterized in that The support member has a lowest point in a horizontal position and extends from the lowest point to both sides and upward, and the extension direction is located in the plane where the door frame is located.

5. The clean room door according to claim 4, characterized in that The support member is configured to have a tendency to move toward the lowest point when the rotating member is located at any position of the support member except the lowest point.

6. The clean room door according to claim 3, characterized in that The support member includes two symmetrically arranged inclined plates, and the angle between the inclined plates and the horizontal plane is 5-30 degrees.

7. The clean room door according to claim 6, characterized in that One side of the two inclined plates away from each other is provided with a mounting portion, and the mounting portion is used to be connected to the door frame.

8. The clean room door according to claim 3, characterized in that A cross bar is provided on the top of the first rotating shaft, and the rotating members are provided at both ends of the cross bar. The size of the supporting member is larger than the area where the two rotating members rotate one circle.

9. The clean room door according to claim 8, characterized in that The crossbar and the first rotating shaft are arranged vertically. The first rotating shaft rotates along its axis to drive the crossbar to rotate in a horizontal plane, and drives the rotating member to rotate on the supporting member.

10. The clean room door according to claim 1, wherein: The second connecting structure includes a first connecting body arranged at the lower part of the door panel and a second connecting body arranged on the door frame. The lower part of the second rotating shaft is connected to the second connecting body, and the upper part of the second rotating shaft extends upward into the first connecting body. The first connecting body moves synchronously with the door panel.

11. The clean room door according to claim 10, characterized in that An elastic member is provided in the first connecting body, and a first accommodating groove for accommodating part of the second rotating shaft and a second accommodating groove for accommodating the elastic member are provided in the first connecting body. A fixing member is provided at the end of the second accommodating groove, and one end of the elastic member acts on the second rotating shaft, and the other end acts on the fixing member.

12. The clean room door according to claim 11, characterized in that The second rotating shaft has a notch on one side facing the elastic member, and the elastic member has a sleeve on one end close to the second rotating shaft, and a portion of the sleeve is accommodated in the notch.

13. The clean room door according to claim 12, characterized in that The second rotating shaft includes a fixing portion for fixing with the second connecting body and a rotating portion for cooperating with the elastic member. The notch is provided on the rotating portion, and the rotating portion is accommodated in the first accommodating groove.

14. The clean room door according to claim 1, wherein The door frame includes two columns and a crossbeam located between the tops of the two columns. The first connecting structure is arranged between the door panel and the crossbeam. The lower end of one of the columns has a support seat. The second connecting structure is arranged between the door panel and the support seat.

15. The clean room door according to any one of claims 1 to 14, characterized in that: The clean room door has a closed state and an open state. In the closed state, the door panel and the door frame are located in the same vertical plane. In the open state, the projections of the door panel and the door frame on the horizontal plane are arranged at an angle.

16. A clean room, characterized in that: The clean room door comprises the clean room door according to any one of claims 1 to 15.

Citation Information

Patent Citations

  • Flat-open type airtight door

    CN101699015B

  • Clean room door

    CN213205424U

  • Clean door frame structure

    CN219932011U