Novel composite material underwater pressure-resistant cabin structure

Abstract

The utility model discloses a novel composite material underwater pressure-resistant cabin structure in the technical field, which comprises an outer cabin and an inner cabin, the outer cabin and the inner cabin are integrally arranged, and a T-shaped sealing ring is arranged at the joint of the outer cabin and the inner cabin; the supporting assembly comprises a positioning sleeve and a limiting sleeve, the positioning sleeve is arranged in the outer cabin, the limiting sleeve is arranged in the inner cabin, the limiting sleeve is connected with the positioning sleeve in a clamped mode, and the T-shaped sealing ring is located between the limiting sleeve and the positioning sleeve. The outer cabin, the inner cabin and the T-shaped sealing ring are integrally formed, so that the sealing performance of the pressure-resistant cabin is enhanced, the size of the pressure-resistant cabin is reduced, the weight of the whole carrier is reduced, and the situation that under the working condition of external pressure, shrinkage of metal and shrinkage of carbon fiber materials are different is effectively avoided; and the problems of degumming, stress concentration and the like caused by the matching problem of the combined interface of the two, and the damage to the whole structure are solved.

Description

Technical Field

[0001] The utility model relates to the fields of composite materials and deep-sea technology, in particular to a novel composite material underwater pressure-resistant cabin structure. Background Art

[0002] The pressure tank is the core structural component of the submersible, which mainly withstands deep-water pressure. It requires sufficient strength and reliable sealing to provide a normal operating environment for internal instruments, equipment, electronic components and devices, and protect them from damage due to seawater pressure and corrosion. The pressure tank of the existing buoyancy regulation system is designed as a spherical structure, which enhances the high-pressure resistance of the pressure tank while maintaining the same quality. Titanium alloy materials are generally used to manufacture the pressure shell.

[0003] However, there are some problems with the existing technology: with the development of marine industry and the continuous increase in the design depth of submersibles, the requirements for lightweight structures are becoming higher and higher, and the requirements for material performance are also becoming higher and higher. However, due to the heavy weight and easy corrosion of titanium alloys, it can no longer meet the model design requirements. It is urgent to switch from the titanium alloy material used in the submersible's pressure water tank to carbon fiber composite materials with better performance. Therefore, we propose a new composite material underwater pressure tank structure. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides a new composite material underwater pressure cabin structure, which is integrated with the outer cabin, the inner cabin and the T-shaped sealing ring to enhance the sealing of the pressure cabin, reduce the volume of the pressure cabin, and reduce the weight of the entire carrier, effectively avoiding the problem of difference in shrinkage between metal and carbon fiber materials under external pressure conditions, and the interface between the two is prone to matching problems, resulting in debonding, stress concentration and other problems, which may cause damage to the overall structure.

[0005] The purpose of the utility model is achieved as follows: a novel composite underwater pressure-resistant cabin structure, comprising:

[0006] An outer cabin and an inner cabin, wherein the outer cabin and the inner cabin are integrally arranged, and a T-shaped sealing ring is provided at the connection between the outer cabin and the inner cabin;

[0007] The support assembly includes a positioning sleeve and a limiting sleeve. The positioning sleeve is arranged inside the outer cabin, the limiting sleeve is arranged inside the inner cabin, the limiting sleeve is clamped with the positioning sleeve, and the T-shaped sealing ring is located between the limiting sleeve and the positioning sleeve.

[0008] Optionally, an annular protrusion is provided on the upper surface of the positioning sleeve, one side of the annular protrusion is a mounting surface, and the mounting surface is in contact with the lower surface of the T-shaped sealing ring.

[0009] Optionally, two groups of the limiting sleeves are provided, and the two groups of the limiting sleeves are arranged opposite to each other. An X-shaped support rod is provided on the lower surface of the limiting sleeve, and the lower end of the X-shaped support rod is in contact with the annular protrusion.

[0010] Optionally, support rods are provided at both ends of the upper surface of the annular protrusion, a clamping groove is opened on the upper surface of the support rod, and clamping blocks are provided at both ends of the limiting sleeve, and the clamping blocks are clamped in the clamping groove.

[0011] Optionally, an angular sealing ring is provided at the angle of the T-shaped sealing ring, and a radial sealing ring is provided on one side of the vertical rod of the T-shaped sealing ring.

[0012] Optionally, the outer cabin consists of two parts: a skin and a reinforcement layer, and the outer surfaces of the outer cabin and the inner cabin are both provided with an anti-permeability layer.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The outer cabin, inner cabin and T-shaped sealing ring provided in the present invention are integrated into an integrated molding configuration, thereby enhancing the sealing performance of the pressure cabin and reducing the volume of the pressure cabin, thereby reducing the weight of the entire carrier, and effectively avoiding the problem that under external pressure conditions, there is a difference in the shrinkage of metal and carbon fiber materials, and the interface between the two is prone to matching problems, resulting in debonding, stress concentration and other problems, causing damage to the overall structure.

[0015] 2. The support assembly provided by the present invention can limit the T-shaped sealing ring during production, thereby effectively avoiding the movement of the T-shaped sealing ring during molding, resulting in unsatisfactory molding effects, and improving product production quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0017] Figure 1 It is a structural diagram provided by the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the pressure cabin provided by the utility model;

[0019] Figure 3 This is a schematic diagram of the support assembly structure provided by the utility model;

[0020] Figure 4This is a schematic diagram of the cross-sectional structure of the pressure cabin provided by the utility model;

[0021] Figure 5 The utility model provides Figure 3 A in the middle is an enlarged structural diagram;

[0022] Figure 6 The utility model provides Figure 4 Enlarged structural diagram at point B in the middle.

[0023] In the figure: 1. Outer cabin; 2. Inner cabin; 3. T-shaped sealing ring; 4. Support assembly; 401. Positioning sleeve; 402. Mounting surface; 403. Annular protrusion; 404. Limiting sleeve; 405. X-shaped support rod; 406. Support rod; 407. Block; 5. Corner sealing ring; 6. Radial sealing ring. DETAILED DESCRIPTION

[0024] 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 are within the scope of protection of the present invention.

[0025] like Figures 1 to 6 As shown, an embodiment of the present invention provides a novel composite underwater pressure-resistant cabin structure, comprising: an outer cabin 1 and an inner cabin 2, wherein the outer cabin 1 and the inner cabin 2 are integrally arranged, and a T-shaped sealing ring 3 is provided at the connection between the outer cabin 1 and the inner cabin 2;

[0026] Specifically, such as Figure 1 、 Figure 2 and Figure 4 As shown, the outer cabin 1, the inner cabin 2 and the T-shaped sealing ring 3 are integrally formed to replace the traditional metal pressure cabin, thereby enhancing the sealing of the pressure cabin and reducing the volume of the pressure cabin, reducing the weight of the entire carrier, and effectively avoiding the shrinkage difference between metal and carbon fiber materials under external pressure conditions. The interface between the two is prone to matching problems, resulting in debonding, stress concentration and other problems, causing damage to the overall structure.

[0027] It is worth noting that the overall structure of the pressure cabin is processed and formed by combining modified epoxy / carbon fiber prepreg and carbon fiber thermoplastic prepreg through molding, winding and autoclave molding processes. The integrated pressure water tank liner and sealing ring are prepared by molding, and then winding and autoclave molding are carried out on this basis. The interface strength between the thermoplastic composite material and the thermosetting composite material is ensured through a special interface treatment process. The carbon fiber composite material can effectively reduce the weight of the pressure shell to obtain greater residual buoyancy, thereby achieving improved productivity, quality, precision and efficiency; more savings in energy consumption, raw materials and processes; and easier processing, operation, control and use.

[0028] Furthermore, the support assembly 4 includes a positioning sleeve 401 and a limiting sleeve 404. The positioning sleeve 401 is arranged inside the outer cabin 1, and the limiting sleeve 404 is arranged inside the inner cabin 2. The limiting sleeve 404 is clamped with the positioning sleeve 401, and the T-shaped sealing ring 3 is located between the limiting sleeve 404 and the positioning sleeve 401;

[0029] Specifically, such as Figure 2 As shown, the T-shaped sealing ring 3 is arranged between the positioning sleeve 401 and the limiting sleeve 404 to limit the installation position of the T-shaped sealing ring 3, thereby avoiding the situation where it will not move during pressing, and the support component 4 is located inside the outer cabin 1 and the inner cabin 2, which can also play a supporting role.

[0030] Furthermore, an annular protrusion 403 is provided on the upper surface of the positioning sleeve 401, and one side of the annular protrusion 403 is a mounting surface 402, which is in contact with the lower surface of the T-shaped sealing ring 3;

[0031] Specifically, such as Figures 2 to 5 As shown, when the T-shaped sealing ring 3 is placed, the lower surface of the T-shaped sealing ring 3 is in contact with the mounting surface 402, and the annular protrusion 403 is higher than the mounting surface 402, thereby limiting the T-shaped sealing ring 3 so that it cannot slide and fall off, thereby facilitating the positioning of the installation position of the T-shaped sealing ring 3 and improving work efficiency.

[0032] Furthermore, two groups of limiting sleeves 404 are provided, and the two groups of limiting sleeves 404 are arranged opposite to each other. An X-shaped support rod 405 is provided on the lower surface of the limiting sleeve 404, and the lower end of the X-shaped support rod 405 is in contact with the annular protrusion 403;

[0033] Specifically, such as Figures 2 to 5As shown, after the T-shaped sealing ring 3 is placed on the positioning sleeve 401, when the inner chamber 2 is covered on the upper surface of the outer chamber 1, the two sets of limiting sleeves 404 will cover the upper surface of the T-shaped sealing ring 3, and cooperate with the positioning sleeve 401 to limit and fix the T-shaped sealing ring 3, thereby achieving the effect of limiting the T-shaped sealing ring 3, effectively avoiding the movement of the T-shaped sealing ring 3 during molding, resulting in unsatisfactory molding effect, and improving product production quality.

[0034] After the limiting sleeve 404 is located on the upper surface of the T-shaped sealing ring 3, the lower end of the X-shaped support rod 405 rests on the upper surface of the annular protrusion 403, thereby improving the limiting effect of the T-shaped sealing ring 3 through the X-shaped support rod 405, and at the same time providing support and increasing pressure resistance.

[0035] Furthermore, support rods 406 are provided at both ends of the upper surface of the annular protrusion 403, and a clamping groove is provided on the upper surface of the support rod 406. A clamping block 407 is provided at both ends of the limiting sleeve 404, and the clamping block 407 is clamped with the clamping groove;

[0036] Specifically, such as Figure 3 and Figure 5 As shown, during installation, align the card block 407 with the card slot, and then clamp the card block 407 inside the card slot to pre-position the outer cabin 1 and the inner cabin 2 to improve the correlation between the outer cabin 1 and the inner cabin 2, avoid misalignment, and affect the performance after production.

[0037] Furthermore, an angle sealing ring 5 is provided at the angle of the T-shaped sealing ring 3, and a radial sealing ring 6 is provided on one side of the vertical rod of the T-shaped sealing ring 3;

[0038] Specifically, such as Figure 4 and Figure 6 As shown, the inner cabin 2 and the outer cabin 1 are connected by a corner sealing ring 5 and a radial sealing ring 6 to fill the gap between the two to ensure that the medium does not leak or enter, thereby achieving a sealing function.

[0039] Furthermore, the outer cabin 1 is composed of two parts: a skin and a reinforcement layer. Both the outer cabin 1 and the inner cabin 2 are provided with an anti-permeation layer.

[0040] Specifically, such as Figure 1 、 Figure 2 and Figure 4 As shown, the skin and reinforcement layer are formed by co-curing to increase the pressure resistance of the outer cabin 1 and improve the toughness of the outer cabin 1. At the same time, an anti-permeation layer is covered on the inner and outer sides of the outer cabin 1 and the inner cabin 2 to ensure the overall sealing of the pressure cabin, so as to prevent perforation, tearing, corrosion and other conditions from occurring in a high water pressure environment, causing the cabin to fail, thereby improving applicability.

[0041] The above embodiments are only intended to help understand the method and core concept of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A novel composite underwater pressure-resistant cabin structure, characterized in that: include: An outer cabin (1) and an inner cabin (2), wherein the outer cabin (1) and the inner cabin (2) are integrally arranged, and a T-shaped sealing ring (3) is provided at the connection between the outer cabin (1) and the inner cabin (2); A support assembly (4), the support assembly (4) comprising a positioning sleeve (401) and a limiting sleeve (404), the positioning sleeve (401) being arranged inside the outer cabin (1), the limiting sleeve (404) being arranged inside the inner cabin (2), the limiting sleeve (404) being snap-connected with the positioning sleeve (401), and the T-shaped sealing ring (3) being located between the limiting sleeve (404) and the positioning sleeve (401).

2. The novel composite underwater pressure-resistant cabin structure according to claim 1, characterized in that: An annular protrusion (403) is provided on the upper surface of the positioning sleeve (401), one side of the annular protrusion (403) is a mounting surface (402), and the mounting surface (402) is in contact with the lower surface of the T-shaped sealing ring (3).

3. The novel composite underwater pressure-resistant cabin structure according to claim 2, characterized in that: Two groups of the limiting sleeves (404) are provided, and the two groups of the limiting sleeves (404) are arranged opposite to each other. An X-shaped support rod (405) is provided on the lower surface of the limiting sleeve (404), and the lower end of the X-shaped support rod (405) is fitted with the annular protrusion (403).

4. The novel composite underwater pressure-resistant cabin structure according to claim 3, characterized in that: Support rods (406) are provided at both ends of the upper surface of the annular protrusion (403), and a clamping slot is provided on the upper surface of the support rod (406). Both ends of the limiting sleeve (404) are provided with clamping blocks (407), and the clamping blocks (407) are clamped with the clamping slot.

5. The novel composite underwater pressure-resistant cabin structure according to claim 4, characterized in that: An angle sealing ring (5) is provided at the angle of the T-shaped sealing ring (3), and a radial sealing ring (6) is provided on one side of the vertical rod of the T-shaped sealing ring (3).

6. The novel composite underwater pressure-resistant cabin structure according to claim 5, characterized in that: The outer cabin (1) consists of two parts: a skin and a reinforcement layer. The outer surfaces of the outer cabin (1) and the inner cabin (2) are both provided with an anti-permeation layer.

Images