Outer air seal and hovercraft

Abstract

The outer air seal comprises an outer air seal body and an inner supporting piece, an air outlet is formed in the outer air seal body, the inner supporting piece is arranged in the air outlet, one end of the inner supporting piece is fixed to one side of the air outlet, and the other end of the inner supporting piece is fixed to the other side of the air outlet. And the other end of the inner supporting piece is close to the other side of the air outlet so as to ensure that the air outlet is opened. According to the outer air seal, the inner supporting piece is arranged at the air outlet of the outer air seal body to unfold the air outlet continuously, so that when the hovercraft runs, the outer air seal can quickly discharge air and drain water, and the bottom supporting air cushion of the outer air seal of the hovercraft can keep certain pressure through quick air discharge, so that the hovercraft can be cushioned; high-pressure air cushions are formed on the two sides of the hovercraft, the transverse stability of the hovering state is guaranteed, seawater in an outer air seal of the hovercraft can be rapidly drained through rapid drainage, and therefore the hovercraft can enter the flying state more rapidly.

Description

Technical Field

[0001] The utility model relates to the technical field of air cushion vehicles, in particular to an external air seal and an air cushion vehicle. Background Art

[0002] At present, the air outlet of the outer air seal of the hovercraft is only an open structure. The air outlet of the outer air seal lacks a supporting structure, which can easily lead to poor exhaust, insufficient pressure on the side wall air cushion, and the rigid support surface cannot ensure the lateral stability in the cushioned state, resulting in wear of the outer airbag; the starting acceleration time is increased when starting and stopping on water. Utility Model Content

[0003] The primary purpose of the utility model is to provide an external air seal so as not to affect the operation of the hovercraft.

[0004] Another object of the utility model is to provide an air cushion craft adopting the above-mentioned external air seal.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] An external air seal comprises an external air seal body and an internal support member, wherein the external air seal body is provided with an air outlet, an internal support member is provided in the air outlet, one end of the internal support member is fixed to one side of the air outlet, and the other end of the internal support member is close to the other side of the air outlet to ensure that the air outlet is propped open.

[0007] Preferably, the inner support member comprises an elastic strip, which is folded in half, with both sides of the open end of the elastic strip fixed to one side of the air outlet, and the folded end of the elastic strip close to the other side of the air outlet.

[0008] Preferably, at least two inner support members are spaced apart in the air outlet.

[0009] Preferably, the elastic strip is made of Hypalon or PVC.

[0010] Preferably, it further comprises an upper patch and a lower patch, wherein the upper patch is attached to one side of the air outlet, and the lower patch is attached to the other side of the air outlet, and the elastic strip is located between the upper patch and the lower patch.

[0011] Preferably, it also includes a middle patch, which is located between the upper patch and the lower patch, and is fixed to the upper patch and the lower patch. The middle patch is wrapped outside the elastic strip, and both sides of the open end of the elastic strip are fixed to one side inside the middle patch, and the folded end of the elastic strip is close to the other side inside the middle patch.

[0012] Preferably, the upper patch and the lower patch are fixed to the inner side of the air outlet by glue, the middle patch is fixed between the upper patch and the lower patch by glue, and the elastic strip is fixed to the inner side of the middle patch by glue.

[0013] Preferably, the upper patch, the lower patch and the middle patch are all made of Hypalon or PVC.

[0014] Preferably, a wear-resistant layer made of fluororubber is provided on the outer side of the outer gas sealing body.

[0015] The utility model also relates to an air cushion craft, comprising the outer air seal.

[0016] Compared with the prior art, the external air seal of the embodiment of the utility model has the following beneficial effects:

[0017] In the utility model, an internal support is provided at the air outlet of the outer air seal body to continuously hold the air outlet open, so that the outer air seal can quickly release air and water when the hovercraft is running. The rapid air release can allow the bottom supporting air cushion of the outer air seal of the hovercraft to maintain a certain pressure, so as to prop up the hovercraft and ensure the lateral stability of the hovercraft; the rapid water discharge can quickly discharge the seawater in the outer air seal of the hovercraft, so that the hovercraft can enter the lifted navigation state more quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of an external air seal of an embodiment of the utility model;

[0019] Figure 2 yes Figure 1 Sectional view of AA in the middle;

[0020] Figure 3 yes Figure 2 Cross-sectional view of BB.

[0021] In the figure, 1. outer air seal body; 11. air outlet; 2. inner support member; 3. upper patch; 4. lower patch; 5. middle patch; 6. wear-resistant layer. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0023] In the description of the present utility model, it should be understood that the wording "comprising" used in the present utility model specification refers to the presence of the features, integers, steps, operations, parts / components and / or assemblies, but does not exclude the presence or addition of one or more other features, integers, steps, operations, parts / components, assemblies and / or their groups. It should be understood that when we say that a part / component is "connected" to another part / component, it can be directly connected to the other part / component, or there can be intermediate parts / components. The wording "and / or" used here includes all or any unit and all combinations of one or more associated listed items.

[0024] like Figures 1 to 3 As shown, the utility model relates to an external air seal, comprising an external air seal body 1 and an internal support member 2, wherein the external air seal body 1 is provided with an air outlet 11, and the air outlet 11 is provided with an internal support member 2, one end of the internal support member 2 is fixed to one side of the air outlet 11, and the other end of the internal support member 2 is close to the other side of the air outlet 11 to ensure that the air outlet 11 is opened.

[0025] In the utility model, an inner support member 2 is provided at the air outlet 11 of the outer air seal body 1 to continuously open the air outlet 11, so that the outer air seal can quickly release air and water when the hovercraft is running. The rapid air release can allow the bottom supporting air cushion of the outer air seal of the hovercraft to maintain a certain pressure, so as to prop up the hovercraft and ensure the lateral stability of the hovercraft; the rapid water discharge can quickly discharge the seawater in the outer air seal of the hovercraft, so that the hovercraft can enter the lifted navigation state more quickly.

[0026] In this embodiment, the inner support member 2 includes an elastic strip, which is folded in half, with both sides of the open end of the elastic strip fixed to one side of the air outlet 11, and the folded end of the elastic strip close to the other side of the air outlet 11, thereby, on the one hand, enhancing the stability of the elastic strip connected to the air outlet 11, and on the other hand, enhancing the strength of the elastic strip supporting the air outlet 11, so as to ensure rapid air outlet and rapid drainage.

[0027] Preferably, at least two inner support members 2 are spaced apart inside the air outlet 11 , so as to ensure sufficient support strength to keep the air outlet 11 open.

[0028] Furthermore, the elastic strip is made of Haipailong or PVC material, so that the elastic strip can have good elastic recovery and tensile and tear resistance, thereby having a longer service life.

[0029] In this embodiment, the external air seal also includes an upper patch 3 and a lower patch 4, the upper patch 3 is attached to one side of the air outlet 11, and the lower patch 4 is attached to the other side of the air outlet 11, and the elastic strip is located between the upper patch 3 and the lower patch 4.

[0030] By arranging the upper patch 3 and the lower patch 4 to wrap around the inner side of the air outlet 11 , the structural strength of the air outlet 11 of the outer air-sealed body 1 can be enhanced.

[0031] Preferably, the outer air seal also includes a middle patch 5, which is located between the upper patch 3 and the lower patch 4, and is fixed to the upper patch 3 and the lower patch 4. The middle patch 5 is wrapped outside the elastic strip, and both sides of the open end of the elastic strip are fixed to one side inside the middle patch 5, and the folded end of the elastic strip is close to the other side inside the middle patch 5.

[0032] By setting the middle patch 5, the middle patch 5 is fixed to the upper patch 3 and the lower patch 4, and both sides of the open end of the elastic strip are fixed to one side inside the middle patch 5, and the folded end of the elastic strip is close to the other side inside the middle patch 5, so as to further strengthen the structural strength of the air outlet 11 of the outer air-sealed body 1, ensuring that the air outlet 11 can quickly exhaust and drain air.

[0033] Furthermore, the upper patch 3 and the lower patch 4 are fixed to the inner side of the air outlet 11 by glue, the middle patch 5 is fixed between the upper patch 3 and the lower patch 4 by glue, and the elastic strip is fixed to the inner side of the middle patch 5 by glue, so that the upper patch 3, the lower patch 4 and the middle patch 5 are firmly connected at the air outlet 11.

[0034] Furthermore, the upper patch 3, the lower patch 4 and the middle patch 5 are all made of Haipailong or PVC material to increase the service life.

[0035] In this embodiment, a wear-resistant layer 6 made of fluororubber is provided on the outer side of the outer air seal body 1, so that the outer air seal can be more wear-resistant and the service life of the outer air seal can be increased.

[0036] The utility model relates to an air cushion craft, comprising the outer air seal.

[0037] The hovercraft adopts the external air seal to ensure that the operation of the hovercraft is more stable, the hovercraft can enter the hovering navigation state more quickly, and the service life is longer.

[0038] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. An external air seal, characterized in that: It includes an outer air-sealing body and an inner support member, wherein the outer air-sealing body is provided with an air outlet, an inner support member is arranged inside the air outlet, one end of the inner support member is fixed to one side of the air outlet, and the other end of the inner support member is close to the other side of the air outlet to ensure that the air outlet is propped open.

2. The outer gas seal according to claim 1, characterized in that The inner support member comprises an elastic strip, which is folded in half, with both sides of the open end of the elastic strip fixed to one side of the air outlet, and the folded end of the elastic strip close to the other side of the air outlet.

3. The outer gas seal according to claim 2, characterized in that: At least two inner support members are spaced apart in the air outlet.

4. The outer gas seal according to claim 2, characterized in that: The elastic strip is made of Haipailong or PVC material.

5. The outer gas seal according to claim 2, characterized in that: It also includes an upper patch and a lower patch, wherein the upper patch is attached to one side of the air outlet, and the lower patch is attached to the other side of the air outlet, and the elastic strip is located between the upper patch and the lower patch.

6. The outer gas seal according to claim 5, characterized in that It also includes a middle patch, which is located between the upper patch and the lower patch, and is fixed to the upper patch and the lower patch. The middle patch is wrapped outside the elastic strip, and both sides of the open end of the elastic strip are fixed to one side inside the middle patch, and the folded end of the elastic strip is close to the other side inside the middle patch.

7. The outer gas seal according to claim 6, characterized in that The upper patch and the lower patch are fixed to the inner side of the air outlet by glue, the middle patch is fixed between the upper patch and the lower patch by glue, and the elastic strip is fixed to the inner side of the middle patch by glue.

8. The outer gas seal according to claim 6, characterized in that The upper patch, the lower patch and the middle patch are all made of Haipailong or PVC material.

9. The outer gas seal according to claim 1, characterized in that: The outer side of the outer gas seal body is provided with a wear-resistant layer made of fluororubber.

10. A hovercraft, characterized in that: Comprising the outer air seal according to any one of claims 1-9.

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