Purification door for clean room

By installing and securing a sealing strip at the gap between the cleanroom door and the door frame, the problem of poor sealing performance of the cleanroom door is solved, achieving environmental protection of the cleanroom and convenient maintenance of the sealing strip.

CN223975084UActive Publication Date: 2026-03-06SUZHOU LIFENG TECHNOLOGY IND CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520603662.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-02
Publication Date
2026-03-06
Estimated Expiration
2035-04-02

AI Technical Summary

Technical Problem

The existing cleanroom doors have gaps between the door and the door frame when they are opened and closed, resulting in poor sealing and allowing unclean outside air to enter the cleanroom and contaminate the cleanroom environment.

Method used

A sealing strip is installed in the gap between the cleanroom door and the door frame, and is fixedly connected to the frame by a connecting component. The sealing strip consists of a connecting part and a sealing part, and is fixed with screws to ensure airtightness.

Benefits of technology

It improves the sealing between the cleanroom door and the door frame, preventing outside air from entering the cleanroom, maintaining the cleanroom environment, and facilitating the installation and replacement of the sealing strip.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223975084U_ABST
    Figure CN223975084U_ABST
Patent Text Reader

Abstract

The utility model discloses a purification door for a clean room, which comprises a door frame and a purification door body, and the purification door body is rotatably connected inside the door frame through a hinge; the purification door body is provided with four side edges; the door frame comprises four borders, sealing strips are arranged in gaps between the borders and the corresponding side edges, and the sealing strips are fixedly connected with the borders through connecting assemblies; the sealing strip comprises a connecting part and a sealing part, the connecting assembly comprises a pressing plate and a screw, the connecting part is located between the pressing plate and the frame, the screw sequentially penetrates through the pressing plate and the connecting part and is in threaded connection with the frame, an opening is formed in the pressing plate, and the sealing part penetrates through the opening and abuts against the side edge. According to the purification door for the clean room, the structure is reasonable, the sealing performance between the purification door body and the door frame is effectively improved, external unclean air is prevented from entering the clean room, and pollution to the environment of the clean room is avoided; and moreover, the sealing strip is convenient to mount and dismount, so that the failed sealing strip is convenient to replace.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to a purification door for cleanrooms. Background Technology

[0002] A cleanroom is a well-sealed space where parameters such as air cleanliness, temperature, humidity, pressure, and noise are controlled as needed. The development of cleanrooms is closely linked to modern industry and cutting-edge technology. The environmental requirements of precision machinery industries (such as the processing of gyroscopes and miniature bearings) and semiconductor industries (such as the production of large-scale integrated circuits) have promoted the development of cleanroom technology.

[0003] However, existing cleanroom doors have the following problems during use: To ensure proper opening and closing, gaps remain between the door and the frame, affecting the seal and allowing unclean outside air to enter the cleanroom, thus contaminating the cleanroom environment. Therefore, appropriate technical solutions are needed to address these issues. Summary of the Invention

[0004] To overcome the aforementioned deficiencies of the prior art, this utility model provides a purification door for cleanrooms to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution of this utility model is to design a purification door for cleanrooms, including a door frame and a purification door body, wherein the purification door body is rotatably connected to the inside of the door frame by a hinge.

[0006] The purification door body has four sides;

[0007] The door frame includes four frame edges, each corresponding to one of the four sides. A sealing strip is provided in the gap between the frame edge and the corresponding side edge. The sealing strip is fixedly connected to the frame edge by a connecting component.

[0008] The sealing strip includes a connecting part and a sealing part. The connecting assembly includes a pressure plate and a screw. The connecting part is located between the pressure plate and the frame. The screw passes through the pressure plate and the connecting part in sequence and is threaded to the frame. The pressure plate has an opening. The sealing part passes through the opening and abuts against the side.

[0009] Preferably, the connecting part is flat, and the sealing part has an arc-shaped cross-section.

[0010] Preferably, the pressure plate is provided with a receiving groove for accommodating the head of a screw.

[0011] Preferably, the purification door body is provided with a glass viewing window.

[0012] Preferably, the purification door body is provided with a door handle.

[0013] The purification door for cleanrooms provided by this utility model has at least the following advantages compared with the prior art:

[0014] This invention effectively improves the sealing performance between the cleanroom door body and the door frame by setting a sealing strip in the gap between the frame and the corresponding side, preventing unclean air from entering the cleanroom and avoiding pollution of the cleanroom environment.

[0015] This utility model features a sealing strip that is fixedly connected to the frame via a connecting component, which facilitates the installation and removal of the sealing strip, allowing for the replacement of any failed sealing strips. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the present invention.

[0017] Figure 2 This is a schematic diagram of the connection structure between the sealing strip and the frame in this utility model.

[0018] Reference numerals in the attached drawings: 1. Door frame; 2. Cleanroom door body; 3. Hinge; 4. Frame; 5. Gap; 6. Connecting part; 7. Sealing part; 8. Pressure plate; 9. Screw; 10. Receiving groove; 11. Glass window; 12. Door handle. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0020] The specific technical solution of this utility model is as follows:

[0021] In one specific embodiment, such as Figure 1 and Figure 2 As shown, this utility model provides a purification door for a cleanroom, including a door frame 1 and a purification door body 2, wherein the purification door body 2 is rotatably connected to the inside of the door frame 1 by a hinge 3.

[0022] The purification door body 2 has four sides;

[0023] The door frame 1 includes four frame 4, which correspond one-to-one with four side edges. A sealing strip is provided in the gap 5 between the frame 4 and the corresponding side edge. The sealing strip is fixedly connected to the frame 4 by a connecting component.

[0024] The sealing strip includes a connecting part 6 and a sealing part 7. The connecting assembly includes a pressure plate 8 and a screw 9. The connecting part 6 is located between the pressure plate 8 and the frame 4. The screw 9 passes through the pressure plate 8 and the connecting part 6 in sequence and is threadedly connected to the frame 4. The pressure plate 8 has an opening. The sealing part 7 passes through the opening and abuts against the side.

[0025] The above solution involves installing a sealing strip in the gap 5 between the frame 4 and the corresponding side, effectively improving the sealing performance between the cleanroom door body 2 and the door frame 1, preventing unclean outside air from entering the cleanroom and avoiding environmental pollution. Furthermore, the sealing strip is fixedly connected to the frame 4 via a connecting assembly, facilitating its installation and removal for easy replacement of failed strips. To install the sealing strip, first, the connecting part 6 of the sealing strip is aligned with the inner side of the frame 4. Then, the pressure plate 8 is pressed against the connecting part 6, and the sealing part 7 of the sealing strip passes through the opening in the pressure plate 8. Finally, the screw 9 is threaded through the pressure plate 8 and the connecting part 6, completing the installation of the sealing strip. Through holes for the screws are pre-machined on the pressure plate 8 and the connecting part 6, and threaded holes for the screw 9 are pre-machined on the inner side of the frame 4. To remove the sealing strip, simply unscrew the screw 9 to remove the pressure plate 8 and the sealing strip.

[0026] In another specific embodiment, such as Figure 2 As shown, the connecting part 6 is flat, and the sealing part 7 has an arc-shaped cross-section.

[0027] The above solution is adopted: by setting the cross-section of the sealing part 7 to be arc-shaped, it is beneficial to make the contact and compression between the side of the purification door body 2 and the sealing part 7 smoother.

[0028] In another specific embodiment, such as Figure 2 As shown, the pressure plate 8 is provided with a receiving groove 10 for accommodating the head of the screw 9.

[0029] The above solution is adopted: by providing a receiving groove 10 on the pressure plate 8 to accommodate the head of the screw 9, the head of the screw 9 can be prevented from protruding from the pressure plate 8, thereby improving the aesthetics.

[0030] In another specific embodiment, such as Figure 1 As shown, the purification door body 2 is provided with a glass viewing window 11.

[0031] The above solution is adopted: by setting a glass window 11 on the cleanroom door body 1, it is convenient to observe the situation inside and outside the cleanroom.

[0032] In another specific embodiment, such as Figure 1 As shown, the purification door body 1 is provided with a door handle 12.

[0033] The above solution is adopted: door handles 12 are installed on the cleanroom door body 1 to facilitate opening and closing the door.

[0034] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A clean door for a clean room, comprising a door frame (1) and a clean door body (2), the clean door body (2) being rotatably connected inside the door frame (1) by a hinge (3), characterized in that: the clean door body (2) has four side edges; the door frame (1) comprises four side frames (4) corresponding to the four side edges one by one, a gap (5) between the side frame (4) and the corresponding side edge being provided with a sealing strip, the sealing strip being fixedly connected with the side frame (4) by a connecting assembly; the sealing strip comprises a connecting part (6) and a sealing part (7), the connecting assembly comprises a pressing plate (8) and a screw (9), the connecting part (6) is located between the pressing plate (8) and the side frame (4), the screw (9) passes through the pressing plate (8) and the connecting part (6) in sequence and is threadedly connected with the side frame (4), the pressing plate (8) is provided with an opening, and the sealing part (7) penetrates through the opening and abuts against the side edge. The connecting part (6) is flat, and the cross section of the sealing part (7) is arc-shaped. The pressing plate (8) is provided with a receiving groove (10) for accommodating the head of the screw (9). The clean door body (2) is provided with a glass window (11).

2. The purge door for a clean room according to claim 1, wherein The clean door body (2) is provided with a door handle (12).

3. The purge door for a clean room according to claim 2, wherein ​ 4. The purge door for a clean room according to claim 1, wherein ​ 5. The pass-thru door for a clean room according to claim 1, wherein ​