A laboratory hatch seal

Abstract

The utility model discloses a laboratory cabin door sealing device, it includes the sealing groove that sets up a circle along the rim four around of cabin door's back frame frame, and the sealing groove shape matching whole is rectangular a circle sealing strip, sealing strip is embedded and is fixed in sealing groove, the cross section width of sealing groove is greater than the cross section width of cabin door frame, and sealing strip protrudes in sealing groove. The inside of sealing strip is provided with a plurality of circles of independent cavities in the circumferential direction, and the cavity is parallelly arranged in the width direction on the cross section width of sealing strip, and the side of sealing strip is provided with a circle of arc convex rib in the circumferential direction, and when cabin door is closed, the arc convex rib is placed in the inside of cabin door frame and the other side of sealing strip protrudes in the outside of cabin door frame to seal cabin door and cabin door frame. The utility model has remarkable advantage in air tightness, durability and adaptability, and can effectively improve the reliability of cabin door sealing system.

Description

Technical Field

[0001] This utility model relates to the field of laboratory hatch technology, and in particular to a laboratory hatch sealing device. Background Technology

[0002] In laboratory environments with high airtightness requirements, the sealing performance of the hatch is crucial to the stability of the internal environment. Good sealing performance can effectively prevent outside air from entering or internal gas from leaking, thereby maintaining specific environmental conditions and ensuring experimental safety and the accuracy of experimental data.

[0003] Currently, laboratory hatches are typically equipped with sealing strips to improve the seal between the door frame and the hatch. However, existing sealing methods mostly use sealing gaskets, which are made by cutting a single sheet of rubber into its shape. Due to their thinness, they have little elasticity and limited deformation capacity when the door is pressed down. Although they can fill some gaps, the fit and airtightness are still insufficient, especially when facing large pressure differences or after long-term use, the sealing effect may gradually decline. Utility Model Content

[0004] This utility model addresses the problems and shortcomings of existing technologies by providing a laboratory hatch sealing device.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] This utility model provides a laboratory hatch sealing device, characterized in that the device includes a sealing groove around the edge of the back frame of the hatch and a sealing strip that is rectangular in shape and matches the shape of the sealing groove. The sealing strip is embedded and fixed in the sealing groove. The cross-sectional width of the sealing groove is greater than the cross-sectional width of the hatch frame. The sealing strip protrudes from the sealing groove.

[0007] The sealing strip has multiple independent cavities arranged in a circular direction. These cavities are parallel to each other in the width direction of the sealing strip. A circular arc-shaped rib is provided on the side of the sealing strip in a circular direction. When the hatch is closed, the circular arc-shaped rib is placed on the inside of the hatch frame and the other side of the sealing strip protrudes from the outside of the hatch frame, thereby sealing the hatch and the hatch frame.

[0008] To address the problems of existing technologies, this invention significantly improves the airtightness of the hatch by incorporating multiple independent cavities within the sealing strip, a circular arc-shaped rib along the circumference of the sealing strip's edge, and a portion of the sealing strip protruding beyond the hatch frame on the other side. The cavity structure allows the sealing strip to deform more significantly under pressure, thus more tightly filling the gap between the hatch and the hatch frame, improving the sealing effect, reducing closing resistance, minimizing fatigue damage to the sealing strip over long-term use, and extending its service life. Furthermore, the circular arc-shaped rib, located inside the door frame, effectively blocks airflow, further enhancing the sealing performance and making it more suitable for high-airtightness laboratory environments. Compared to traditional sealing gaskets, this invention offers significant advantages in airtightness, durability, and adaptability, effectively improving the reliability of the hatch sealing system. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the laboratory hatch sealing device according to a preferred embodiment.

[0010] Figure 2 This is a schematic diagram of the installation of the sealing strip according to a preferred embodiment.

[0011] Figure 3 This is a schematic diagram of the overall structure of the sealing strip in this preferred embodiment. Detailed Implementation

[0012] 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. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0013] like Figure 1-3 As shown, this embodiment provides a laboratory hatch sealing device, including a sealing groove 1 arranged around the perimeter of the back frame of the hatch 4, and a rectangular sealing strip 2 that matches the shape of the sealing groove 1. The sealing strip 2 is embedded and fixed in the sealing groove 1, and the contact point between the sealing strip 2 and the sealing groove 1 is bonded together with sealant. The cross-sectional width of the sealing groove 1 is larger than the cross-sectional width of the hatch frame 5, and the sealing strip 2 protrudes from the sealing groove 1.

[0014] The sealing strip 2 has multiple independent cavities 21 inside along the circumferential direction. These cavities 21 are arranged parallel to each other along the width direction of the sealing strip 2. Each cavity 21 is located at the upper part of the sealing strip 2 and each cavity 21 is a rectangular cavity.

[0015] In this embodiment, the sealing strip 2 has three cavities 21, which are distributed on one side, the middle and the other side respectively on the cross-sectional width of the sealing strip 2.

[0016] A circular arc-shaped rib 3 is provided along the circumferential direction on the side of the sealing strip 2, and the circular arc-shaped rib 3 is located above the cavity 21 on one side. When the hatch 4 is closed, the circular arc-shaped rib 3 is placed on the inner side of the hatch frame 5 and protrudes from the outer side of the hatch frame 5 on the other side of the sealing strip 2, thereby sealing the hatch 4 and the hatch frame 5. The sealing strip 2 and the circular arc-shaped rib 3 are integrally formed.

[0017] In this embodiment, the sealing strip 2 is composed of multiple segments spliced ​​together, and the four corners of the sealing strip 2 are rounded.

[0018] In this embodiment, the sealing strip 2 is a rubber sealing strip, and the arc-shaped rib 3 is a rubber rib.

[0019] The process of using the laboratory hatch sealing device is as follows: First, the sealing strip 2 is embedded and fixed in the sealing groove 1 with sealant. During installation, ensure that the arc-shaped rib 3 is located on the inner side of the hatch frame 5, while the other side of the sealing strip 2 protrudes from the outer side of the hatch frame 5. Then, when the hatch 4 is closed, due to the presence of the cavity 21 of the sealing strip 2, the sealing strip 2 can deform better under the action of extrusion force, filling the gap between the hatch and the hatch frame, thus achieving a seal between the hatch 4 and the hatch frame 5. At the same time, the arc-shaped rib 3 and the part of the other side of the sealing strip 2 protruding from the hatch frame 5 further block the airflow between the inside and outside of the laboratory, thereby effectively improving the airtightness of the hatch.

[0020] This invention significantly improves the airtightness of the hatch by incorporating multiple independent cavities within the sealing strip, a circular arc-shaped rib along the circumference of the sealing strip's edge, and a portion of the sealing strip protruding beyond the hatch frame on the other side. The cavity structure allows the sealing strip to deform more tightly under pressure, thus filling the gap between the hatch and the hatch frame more effectively, improving the sealing effect, reducing closing resistance, minimizing fatigue damage to the sealing strip over long-term use, and extending its service life. Furthermore, the circular arc-shaped rib located inside the door frame effectively blocks airflow, further enhancing the sealing performance and making it more suitable for high-airtightness laboratory environments. Compared to traditional sealing gaskets, this invention offers significant advantages in airtightness, durability, and adaptability, effectively improving the reliability of the hatch sealing system.

[0021] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A laboratory hatch sealing device, characterized in that, The device includes a sealing groove around the edge of the back frame of the hatch and a rectangular sealing strip that matches the shape of the sealing groove. The sealing strip is embedded and fixed in the sealing groove. The cross-sectional width of the sealing groove is greater than the cross-sectional width of the hatch frame. The sealing strip protrudes from the sealing groove. The sealing strip has multiple independent cavities arranged in a circular direction. These cavities are parallel to each other in the width direction of the sealing strip. A circular arc-shaped rib is provided on the side of the sealing strip in a circular direction. When the hatch is closed, the circular arc-shaped rib is placed on the inside of the hatch frame and the other side of the sealing strip protrudes from the outside of the hatch frame, thereby sealing the hatch and the hatch frame.

2. The laboratory hatch sealing device as described in claim 1, characterized in that, The sealing strip has three cavities, which are distributed on one side, in the middle, and on the other side of the cross-sectional width of the sealing strip.

3. The laboratory hatch sealing device as described in claim 2, characterized in that, The arc-shaped rib is located above the cavity on one side.

4. The laboratory hatch sealing device as described in claim 1, characterized in that, Each of the cavities is located on the upper part of the sealing strip.

5. A laboratory hatch sealing device as described in claim 1, characterized in that, Each of the cavities is a rectangular cavity.

6. A laboratory hatch sealing device as described in claim 1, characterized in that, The sealing strip and the arc-shaped rib are integrally formed.

7. A laboratory hatch sealing device as described in claim 1, characterized in that, The sealing strip is composed of multiple segments spliced ​​together.

8. A laboratory hatch sealing device as described in claim 1, characterized in that, The four corners of the sealing strip are rounded.

9. A laboratory hatch sealing device as described in claim 1, characterized in that, The sealing strip is bonded to the sealing groove at the contact point with sealant.

10. A laboratory hatch sealing device as described in claim 1, characterized in that, The sealing strip is a rubber sealing strip, and the arc-shaped rib is a rubber rib.

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