Soft body chamber and magnetic inner sealing device

Abstract

A magnetic internal sealing device for a soft oxygen chamber is installed at the chamber door and chamber entrance. The chamber door seals the chamber entrance. The magnetic internal sealing device includes an inner sealing element and a sealing strip. The sealing strip includes a left magnetic strip and a right magnetic strip. The inner sealing element is a sealing magnetic strip, which includes a left magnetic strip and a right magnetic strip. The left magnetic strip is located on the side of the left magnetic strip away from the right magnetic strip, and the right magnetic strip is located on the side of the right magnetic strip away from the left magnetic strip. The left and right magnetic strips are respectively installed on the inner edge of the chamber entrance and the inner edge of the chamber door. When the left and right magnetic strips are magnetically attracted, the edges of the left and right magnetic strips are completely fitted together and sealed. This magnetic internal sealing device has the characteristics of high reliability, good sealing performance, wide applicability, and ease of use.

Description

Technical Field

[0001] This utility model relates to the field of soft oxygen chamber technology, specifically to a soft oxygen chamber and a magnetic internal sealing device. Background Technology

[0002] Currently, in the flexible micro-pressure oxygen chamber industry, a common sealing method involves two layers of ordinary zippers with a layer of soft sealing material in between. When the chamber is pressurized, the expansion of the chamber tightens the inner and outer zippers, clamping the soft sealing material in between, thus achieving a seal. This method has two drawbacks: firstly, it's inconvenient to use, as the soft sealing material needs to be flattened or unpacked each time the zippers are opened and closed; secondly, during the initial pressurization process, the two zippers cannot immediately clamp the soft sealing material, making air leakage easy. Another common sealing method involves two layers of zippers in the chamber body, with a watertight rubber-threaded zipper inside. The traditional watertight zipper uses an outer layer of ordinary zipper, with an inner zipper providing sealing and the outer zipper bearing pressure. This method has three drawbacks: First, in actual use, watertight zippers require significant pulling force to open and close, resulting in excessive resistance. Second, with repeated use, the sealing teeth develop increasingly larger gaps due to expansion and tension, shortening their lifespan. Third, the sealing structure is limited; when an S-shaped or U-shaped seal is required, the different curvature of the teeth on both sides due to the bends can lead to insufficient sealing. Therefore, there is an urgent need for a flexible oxygen chamber and a magnetic internal sealing device to solve these problems. Utility Model Content

[0003] In view of this, a magnetic internal sealing device for soft oxygen chambers is provided, which is highly reliable, has good sealing performance, wide applicability, and is easy to use.

[0004] A magnetic internal sealing device for a soft oxygen chamber is disclosed, for installation on the chamber door and chamber entrance of the soft oxygen chamber. The chamber door seals the chamber entrance. The magnetic internal sealing device includes an inner sealing element and a sealing strip. The sealing strip includes a left magnetic strip and a right magnetic strip. The inner sealing element is a sealing magnetic strip, which includes a left magnetic strip and a right magnetic strip. The left magnetic strip is located on the side of the left magnetic strip away from the right magnetic strip, and the right magnetic strip is located on the side of the right magnetic strip away from the left magnetic strip. The left and right magnetic strips are respectively installed on the inner edge of the chamber entrance and the inner edge of the chamber door. When the left and right magnetic strips are magnetically attracted, the edges of the left and right magnetic strips are completely fitted together to achieve a seal.

[0005] Furthermore, the edge of the left magnetic strip wraps around the left magnetic strip, and the edge of the right magnetic strip wraps around the right magnetic strip, with the left and right magnetic strips extending in the same direction.

[0006] Furthermore, the sealing tape is a TPU mesh tape or a PVC mesh tape.

[0007] Furthermore, the magnetic inner sealing device also includes an outer zipper installed on the outer chamber of the soft oxygen chamber, the outer zipper being a pressure-resistant zipper, and the inner sealing element being disposed inside the soft oxygen chamber.

[0008] Furthermore, the sealing strip also includes a third strip, a fourth strip, and a first strip and a second strip attached to the pressure-resistant zipper. The lower edges of the third strip and the fourth strip are respectively sealed to the right strip and the left strip of the magnetic strip. The upper edges of the third strip and the fourth strip are respectively sealed to the second strip and the first strip. The pressure-resistant zipper, the second strip, the third strip, the inner sealing element, the fourth strip, and the first strip form a sealed cavity. Each strip of the sealing strip extends along the length of the pressure-resistant zipper. The adjacent strips of the sealing strip are connected or overlapped at the edges along the length of the pressure-resistant zipper.

[0009] Furthermore, the outer zipper, inner seal, and sealing strip form a continuous triangular cavity structure within the soft oxygen chamber. The two ends of the triangular cavity structure have end sealing strips, which are sealed to each strip of the sealing strip.

[0010] Furthermore, the outer zipper and the inner seal extend in the same direction, and the shape of the extension direction of the outer zipper and the inner seal is straight or curved.

[0011] Furthermore, the pressure-resistant zipper includes at least two zipper layers, and the zipper pull has a double pull structure, so that the pressure-resistant zipper can be opened and closed from the inside or the outside.

[0012] Furthermore, the magnetic inner sealing device also includes a sealing zipper, which includes zipper teeth, and a left zipper strap and a right zipper strap connected to the zipper teeth. The left zipper strap and the right zipper strap are attached to the third strap, and the zipper opening and closing surfaces of the pressure-resistant zipper and the sealing zipper have an angle.

[0013] A soft oxygen chamber includes a soft chamber body, the soft chamber body having a chamber entrance, and the chamber entrance having a magnetic inner sealing device for the soft oxygen chamber.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects:

[0015] First, this magnetic internal sealing device seals the left and right magnetic strips by magnetic attraction between the left and right magnetic strips. Compared with common sealing methods, it eliminates the need to flatten or separate the sealing material each time it is opened and closed. When opening, simply use a force greater than the magnetic attraction to separate the left and right magnetic strips. When closing, bring the left and right magnetic strips close to each other, and they will automatically attract and seal under the magnetic attraction, greatly improving ease of use.

[0016] Secondly, the main pressure of the cabin is borne by the pressure-resistant zipper, which is designed with at least two layers of zipper structure, which strengthens the pressure resistance and significantly improves the reliability and service life of the magnetic internal sealing device.

[0017] Third, under the magnetic force of the left and right magnetic strips, the left and right magnetic strips can always maintain a fully sealed state, solving the problem of easy air leakage in the traditional double-layer zipper with a middle sealing layer structure during the initial pressurization stage of the cabin. It has good sealing performance. In addition, since it is a magnetic seal, not a traditional watertight rubber seal, it will not have insufficient sealing performance due to the different curvature of the two sides of the rubber seal due to the bend of the rubber seal. This magnetic internal sealing device is suitable for various irregular curve sealing scenarios and has wide applicability. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of a soft oxygen chamber with a straight zipper, which is an embodiment of the present invention and includes a magnetic inner sealing device.

[0019] Figure 2 This is a cross-sectional schematic diagram of a magnetic inner sealing device for a soft oxygen chamber with a straight zipper and a straight inner sealing element, according to an embodiment of this utility model.

[0020] Figure 3 yes Figure 2 A magnified view of part A in the diagram.

[0021] Figure 4 This is a perspective view of a soft oxygen chamber with a curved zipper, representing an embodiment of the present invention, and a soft oxygen chamber and sealing device.

[0022] Figure 5 This is a cross-sectional schematic diagram of a magnetic inner sealing device for a soft oxygen chamber with a curved zipper and a curved inner sealing element, according to an embodiment of the present invention.

[0023] In the picture,

[0024] 1. Soft cabin; 2. Entrance; 3. Pressure-resistant zipper; 4. Inner sealing element; 5. First belt; 6. Second belt; 7. Third belt; 8. Fourth belt; 9. Left magnetic stripe; 10. Right magnetic stripe; 11. Left magnetic stripe; 12. Right magnetic stripe. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1 to 5 This illustration shows a magnetic inner sealing device for a soft oxygen chamber, provided by an embodiment of the present invention. The device is installed on the chamber door and chamber inlet 2 of the soft oxygen chamber, with the chamber door sealing the chamber inlet 2. The magnetic inner sealing device includes an inner sealing element 4 and a sealing strip. The sealing strip includes a left magnetic strip 9 and a right magnetic strip 10. The inner sealing element 4 is a sealing magnetic strip, which includes a left magnetic strip 11 and a right magnetic strip 12. The left magnetic strip 11 is located on the side of the left magnetic strip 9 away from the right magnetic strip 10, and the right magnetic strip 12 is located on the side of the right magnetic strip 10 away from the left magnetic strip 9. The left magnetic strip 9 and the right magnetic strip 10 are respectively installed on the inner edge of the chamber inlet 2 and the inner edge of the chamber door. When the left magnetic strip 11 and the right magnetic strip 12 are magnetically attracted, the edges of the left magnetic strip 9 and the right magnetic strip 10 are completely fitted together, achieving a seal.

[0027] Specifically, the edge of the left magnetic strip 9 wraps around the left magnetic strip 11, and the edge of the right magnetic strip 10 wraps around the right magnetic strip 12. The left magnetic strip 9 and the right magnetic strip 10 extend in the same direction.

[0028] Specifically, the sealing tape is a TPU mesh tape or a PVC mesh tape. In some specific embodiments, the TPU mesh tape or the PVC mesh tape is a preferred embodiment. The sealing tape can also be a cloth tape or an adhesive tape.

[0029] Specifically, the magnetic inner sealing device also includes an outer zipper installed on the outer chamber of the soft oxygen chamber, the outer zipper being a pressure-resistant zipper 3, and the inner sealing element 4 being disposed inside the soft oxygen chamber.

[0030] In some specific embodiments, when a person enters the cabin entrance 2, they first pull open the two layers of pressure-resistant zippers 3, and then separate the left magnetic strip 9 and the right magnetic strip 10 to pass through the inner sealing member 4 and enter the cabin. When closing the entrance 2, since the pressure-resistant zipper 3 has a double pull head, the two layers of pressure-resistant zippers 3 can be pulled up from one side inside the cabin, and then the left magnetic strip 9 and the right magnetic strip 10 can be brought closer to each other. Under the magnetic attraction of the left magnetic strip 11 and the right magnetic strip 12, the left magnetic strip 9 and the right magnetic strip 10 can automatically close and seal.

[0031] More specifically, the sealing strip further includes a third strip 7, a fourth strip 8, and a first strip 5 and a second strip 6 attached to the pressure-resistant zipper 3. The lower edges of the third strip 7 and the fourth strip 8 are respectively sealed to the right strip 9 and the left strip 10 of the magnetic strip, and the upper edges of the third strip 7 and the fourth strip 8 are respectively sealed to the second strip 6 and the first strip 5. The pressure-resistant zipper 3, the second strip 6, the third strip 7, the inner sealing element 4, the fourth strip 8, and the first strip 5 form a sealed cavity. Each strip of the sealing strip extends along the zipper length direction of the pressure-resistant zipper 3, and adjacent connected strips of the sealing strip are joined or overlapped at the edges along the zipper length direction of the pressure-resistant zipper 3. In some specific embodiments, the sealing strips are preferably sealed by sewing or hot-melt pressing.

[0032] More specifically, the outer zipper, inner seal 4, and sealing strip form a continuous triangular cavity structure within the soft oxygen chamber. The two ends of the triangular cavity structure have end sealing strips, which are sealed to each strip of the sealing strip.

[0033] In some specific embodiments, the two ends of the third strip 7, the fourth strip 8, and the inner sealing element 4 can be made into a tight sealing structure by hot pressing. The third strip 7, the fourth strip 8, and the inner sealing element 4 are used to tighten and seal the two ends of the sealed cavity, thereby eliminating the need for a separate end sealing strip.

[0034] More specifically, the outer zipper, i.e. the pressure-resistant zipper 3, and the inner sealing element 4 extend in the same direction. The shape of the extension direction of the outer zipper, i.e. the pressure-resistant zipper 3, and the inner sealing element 4 is straight or curved. The curved shape includes irregular curves such as C-shape, S-shape, and U-shape.

[0035] More specifically, the pressure-resistant zipper 3 includes at least two layers of zippers, and the zipper pull of the pressure-resistant zipper 3 has a double zipper pull structure, so that the pressure-resistant zipper 3 can be opened and closed from the inside or the outside.

[0036] More specifically, the magnetic inner sealing device further includes a sealing zipper, the sealing zipper including zipper teeth, and a left zipper strap and a right zipper strap connected to the zipper teeth, the left zipper strap and the right zipper strap being attached to the third strap 7, and the zipper opening and closing surface of the pressure-resistant zipper 3 having an angle with the zipper opening and closing surface of the sealing zipper.

[0037] Another embodiment of this utility model provides a soft oxygen chamber, including a soft chamber body, wherein the soft chamber body is provided with a chamber inlet 2, and the chamber inlet 2 is provided with the aforementioned magnetic inner sealing device of the soft oxygen chamber. The inlet 2 is straight or curved, such as an arch, with at least an arc-shaped edge. The chamber inlet 2 is provided with a door, and a zipper may be provided between the edge of the door and the edge of the inlet 2, or an outer pressure-resistant zipper 3 may be provided as described above.

[0038] In summary, this magnetic internal sealing device seals the left magnetic strip 9 and the right magnetic strip 10 by magnetically engaging the left magnetic strip 11 and the right magnetic strip 12. Compared with common sealing methods, it eliminates the need to flatten or separate the sealing material each time it is opened and closed. When opening, a force greater than the magnetic attraction force is used to separate the left magnetic strip 9 and the right magnetic strip 10. When closing, the left magnetic strip 9 and the right magnetic strip 10 are brought close together, and they automatically engage and seal under magnetic attraction, greatly improving ease of use. Simultaneously, the main pressure of the cabin is borne by the pressure-resistant zipper 3, which is designed with at least two layers of zipper structure. The pressure resistance has been enhanced, significantly improving the reliability and service life of the magnetic internal sealing device. In addition, under the magnetic force of the left magnetic strip 11 and the right magnetic strip 12, the left magnetic strip 9 and the right magnetic strip 10 can ensure a fully sealed state at all times, solving the problem of easy air leakage in the traditional double-layer zipper middle sealing layer structure during the initial pressurization stage of the cabin. The sealing performance is good, and because it is a magnetic seal, rather than a traditional watertight rubber seal, it will not have insufficient sealing performance due to the different curvature of the two sides of the rubber seal due to the bend of the rubber seal. This magnetic internal sealing device is suitable for various irregular curve sealing scenarios and has wide applicability.

[0039] It should be noted that this utility model is not limited to the above-described embodiments. Based on the inventive spirit of this utility model, those skilled in the art can make other changes, and these changes made based on the inventive spirit of this utility model should be included within the scope of protection claimed by this utility model.

Claims

1. A magnetic internal sealing device for a soft oxygen chamber, used for installation on the chamber door and chamber inlet of the soft oxygen chamber, wherein the chamber door seals the chamber inlet, characterized in that, The device includes an inner sealing element and a sealing strip. The sealing strip includes a left magnetic strip and a right magnetic strip. The inner sealing element is a sealing magnetic strip, which includes a left magnetic strip and a right magnetic strip. The left magnetic strip is located on the side of the left magnetic strip away from the right magnetic strip, and the right magnetic strip is located on the side of the right magnetic strip away from the left magnetic strip. The left and right magnetic strips are respectively installed on the inner edge of the cabin entrance and the inner edge of the cabin door. When the left and right magnetic strips are magnetically attracted, the edges of the left and right magnetic strips are completely fitted together to achieve a seal.

2. The magnetic inner sealing device for a soft oxygen chamber as described in claim 1, characterized in that, The edge of the left magnetic strip wraps around the left magnetic strip, and the edge of the right magnetic strip wraps around the right magnetic strip. The left and right magnetic strips extend in the same direction.

3. The magnetic inner sealing device for a soft oxygen chamber as described in claim 1, characterized in that, The sealing tape is a TPU mesh tape or a PVC mesh tape.

4. The magnetic inner sealing device for a soft oxygen chamber as described in claim 1, characterized in that, The magnetic inner sealing device also includes an outer zipper installed on the outer chamber of the soft oxygen chamber, the outer zipper being a pressure-resistant zipper, and the inner sealing element being disposed inside the soft oxygen chamber.

5. The magnetic inner sealing device for a soft oxygen chamber as described in claim 4, characterized in that, The sealing strip also includes a third strip, a fourth strip, and a first strip and a second strip attached to the pressure-resistant zipper. The lower edges of the third strip and the fourth strip are respectively sealed to the right strip and the left strip of the magnetic strip. The upper edges of the third strip and the fourth strip are respectively sealed to the second strip and the first strip. The pressure-resistant zipper, the second strip, the third strip, the inner sealing element, the fourth strip, and the first strip form a sealed cavity. Each strip of the sealing strip extends along the length of the pressure-resistant zipper. The adjacent strips of the sealing strip are connected or overlapped at the edge of the pressure-resistant zipper along its length.

6. The magnetic inner sealing device for a soft oxygen chamber as described in claim 5, characterized in that, The outer zipper, inner seal, and sealing strip form a continuous triangular cavity structure within the soft oxygen chamber. The two ends of the triangular cavity structure have end sealing strips, which are sealed to each strip of the sealing strip.

7. The magnetic inner sealing device for a soft oxygen chamber as described in claim 4, characterized in that, The outer zipper and the inner seal extend in the same direction, and the shape of the extension direction of the outer zipper and the inner seal is either straight or curved.

8. The magnetic inner sealing device for a soft oxygen chamber as described in claim 4, characterized in that, The pressure-resistant zipper includes at least two zipper layers, and the zipper pull has a double pull structure, which allows the pressure-resistant zipper to be opened and closed from the inside or the outside.

9. The magnetic inner sealing device for a soft oxygen chamber as described in claim 5, characterized in that, The magnetic inner sealing device further includes a sealing zipper, which includes zipper teeth, a left zipper strap and a right zipper strap connected to the zipper teeth, the left zipper strap and the right zipper strap are attached to the third strap, and the zipper opening and closing surface of the pressure-resistant zipper has an angle with the zipper opening and closing surface of the sealing zipper.

10. A soft oxygen chamber, comprising a soft chamber body, wherein the soft chamber body is provided with a chamber inlet, characterized in that, The cabin entrance is equipped with a magnetic internal sealing device for the soft oxygen chamber as described in any one of claims 1 to 9.

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