A waterproof high-pressure box

Abstract

This utility model discloses a waterproof high-pressure box, comprising: a box body unit, which includes a box body with a pressure relief port on one side; and a box cover unit, which is located at the top of the box body unit and forms a sealed structure with the box body unit. This waterproof high-pressure box, through a one-way valve located inside the pressure relief port, can automatically discharge gas when the internal pressure exceeds a certain threshold of the external pressure, effectively regulating the pressure difference within the box. In deep water or high-pressure environments, the external pressure changes drastically, especially when returning from high pressure to normal pressure, and the expansion of the internal compressed gas may cause damage to the box body. The pressure balancing function of the one-way valve avoids this risk, ensuring the integrity of the box body structure and preventing seal failure or explosion hazards. This design significantly improves the safety of the product under dynamic pressure environments, and is particularly suitable for diving equipment or high-pressure experimental devices, protecting the internal contents while extending the service life of the box body.

Description

Technical Field

[0001] This utility model relates to the field of mechanical engineering technology, and in particular to a waterproof high-pressure box. Background Technology

[0002] Waterproof high-pressure boxes, as protective devices, are widely used in deep-water operations, outdoor experiments, and industrial settings to protect internal contents from high pressure and moisture. Currently, most commercially available waterproof high-pressure boxes employ a high-strength outer shell combined with a sealing ring, achieving a sealed function through snap-fit ​​or simple threaded connections. These products effectively prevent moisture infiltration in normal pressure or shallow water environments, meeting basic protection requirements. With the expansion of applications in diving equipment, high-pressure testing devices, and other fields, waterproof high-pressure boxes are gradually becoming important components in these areas, and their designs are continuously being optimized to adapt to diverse usage scenarios.

[0003] However, existing waterproof high-pressure boxes still have significant shortcomings under high-pressure environments. In deep water or under high pressure, the external pressure increases significantly, and the internal pressure differential cannot be balanced with the external environment, leading to the risk of seal failure or structural damage. This is especially true when returning from a high-pressure environment to normal pressure, where the expansion of internal compressed gas can cause deformation or even cracking. Furthermore, traditional designs often rely on a single interlocking structure, which has limited pressure resistance and cannot withstand continuous high-pressure forces, thus limiting their reliability in extreme environments. Therefore, there is an urgent need to improve existing technologies to address the issues of insufficient pressure differential regulation and pressure resistance, thereby enhancing the practicality of waterproof high-pressure boxes. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a waterproof high-pressure box.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A waterproof high-pressure box includes: a box body unit, which includes a box body and a pressure relief port on one side of the box body; a box cover unit, which includes a box cover body and is disposed at the top of the box body unit, forming a sealing structure with the box body unit; a sealing ring, which is disposed between the box body unit and the box cover unit to seal the connection between the box body unit and the box cover unit; and a one-way valve, the inlet end of which penetrates through the inside of the pressure relief port and is disposed inside the box body unit, and the outlet end of which is disposed outside the one-way valve, for discharging gas when the internal pressure exceeds a certain threshold of the external pressure to regulate the internal and external pressure difference.

[0007] Preferably, the box body unit further includes a first extension portion disposed at the top of the box body, and the first extension portion is provided with a plurality of first mounting holes.

[0008] Preferably, the lid unit further includes a second extension portion disposed on the outer wall of the lid body, the second extension portion having a plurality of third mounting holes; it also includes a mounting groove disposed on the lid body, and a sealing ring disposed in the mounting groove.

[0009] Preferably, the lid unit and the body unit are fixedly connected by a plurality of first screws passing through the third mounting hole and screwed into the first mounting hole.

[0010] Preferably, the side wall of the box body is provided with a number of second mounting holes, and the one-way valve is fixed to the second mounting holes on the box body by a second screw.

[0011] Preferably, the one-way valve includes a cylindrical body, a valve seat is fixed inside the cylindrical body, an opening is provided at the center of the valve seat, and a hollow bracket is provided at the end of the cylindrical body away from the valve seat. A spherical valve disc is elastically connected to the inside of the bracket by a spring. The spherical valve disc and the valve seat are in contact with each other and are sealed.

[0012] This utility model has the following beneficial effects:

[0013] 1. This waterproof high-pressure box features a one-way valve located inside the pressure relief port. This valve automatically releases gas when the internal pressure exceeds a certain threshold of external pressure, effectively regulating the pressure difference within the box. In deep water or high-pressure environments, drastic changes in external pressure, especially when returning from high pressure to normal pressure, can cause the box to rupture due to the expansion of compressed gas. The one-way valve's pressure balancing function avoids this risk, ensuring the box's structural integrity and preventing seal failure or explosion hazards. This design significantly improves the product's safety under dynamic pressure environments, making it particularly suitable for diving equipment or high-pressure experimental setups, protecting internal contents while extending the box's lifespan.

[0014] 2. By using a sealing ring positioned between the body and lid units, combined with a fitting groove design, this waterproof high-pressure box achieves a tight seal at the connection, effectively preventing moisture infiltration. Whether in deep water, under high pressure, or in humid environments, the sealing ring maintains stable waterproof performance, ensuring the internal contents are protected from water damage. Compared to traditional waterproof boxes that rely solely on simple snap-fit ​​connections, this structure maintains a seal even under high pressure, significantly improving the product's environmental adaptability. Suitable for underwater operations or extreme outdoor conditions, providing reliable protection for electronic equipment, experimental samples, and more.

[0015] 3. This waterproof high-pressure box utilizes mounting holes on both the first and second outer extensions, employing a first screw to achieve multi-point fixing between the lid and the box body, significantly enhancing overall pressure resistance. Compared to traditional single-fastening structures, this design evenly distributes stress, enabling it to withstand continuous pressure in deep water or high-pressure environments, preventing the lid from loosening or falling off. The auxiliary fixing of the one-way valve further strengthens the stability of the side walls, ensuring the box body is not easily deformed under extreme conditions. This structural optimization improves the product's durability and reliability, making it particularly suitable for industrial high-pressure scenarios or prolonged underwater use.

[0016] 4. The one-way valve features a design that passes through the pressure relief port and is secured with a second screw, simplifying installation and requiring no complex tools for assembly. Simultaneously, the sealing ring is embedded in the mounting groove, facilitating disassembly and replacement, reducing maintenance difficulty and costs. Compared to traditional waterproof boxes requiring complete replacement or complex repairs, this design maintains high performance while also considering practicality and economy. Users can quickly adjust or replace components on-site, extending product lifespan, making it particularly suitable for frequently used professional fields such as diving operations or field experiments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the waterproof high-voltage box;

[0018] Figure 2 This is a schematic diagram of the explosion structure of a waterproof high-pressure box;

[0019] Figure 3 This is a schematic diagram of the box body unit structure;

[0020] Figure 4 This is a schematic diagram of the lid unit structure;

[0021] Figure 5 This is a schematic diagram of a one-way valve structure;

[0022] Figure 6 This is a cross-sectional view of a one-way valve.

[0023] In the diagram: 1. Box body unit; 101. Box body; 102. First extension; 103. First mounting hole; 104. Pressure relief port; 105. Second mounting hole; 2. Box cover unit; 201. Box cover body; 202. Second extension; 203. Third mounting hole; 204. Mounting groove; 3. Sealing ring; 4. First screw; 5. One-way valve; 501. Cylindrical body; 502. Valve seat; 503. Opening; 504. Spring; 505. Ball valve disc; 6. Second screw. Detailed Implementation

[0024] 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.

[0025] Reference Figure 1-6 A waterproof high-pressure box includes: a box body unit 1, which includes a box body 101, and a pressure relief port 104 is provided on one side of the box body 101; a box cover unit 2, which includes a box cover body 201, and is disposed at the top of the box body unit 1, forming a sealing structure with the box body unit 1; a sealing ring 3, which is disposed between the box body unit 1 and the box cover unit 2 to seal the connection between the box body unit 1 and the box cover unit 2; and a one-way valve 5, the inlet end of which penetrates the inside of the pressure relief port 104, the inlet end of which is disposed inside the box body unit 1, and the outlet end of which is disposed outside the one-way valve 5, for discharging gas when the internal pressure exceeds a certain threshold of the external pressure, so as to regulate the internal and external pressure difference.

[0026] In this embodiment, the box body unit 1 provides the main space for containing items through the box body 101. The pressure relief port 104 serves as a pressure regulation channel, providing basic protection for the internal items and supporting the installation of the one-way valve 5 to ensure the pressure balance function is realized, thereby improving the adaptability of the box body in high-pressure environments. The box cover unit 2 is located at the top of the box body unit 1, forming a sealed structure with the box body unit 1 to close the box body 101. It works with the sealing ring 3 to achieve a waterproof seal, protecting the internal items from external moisture or pressure, and enhancing the stability of the overall structure. The sealing ring 3 is placed between the box body unit 1 and the box cover unit 2, filling the gap at the connection and forming a waterproof barrier to ensure that the box body remains sealed in high-pressure or deep-water environments, preventing water infiltration, improving waterproof performance, and making it suitable for extreme conditions. The inlet end of the one-way valve 5 penetrates the inside of the pressure relief port 104, and the outlet end is located outside the box body. When the internal pressure exceeds the limit, it discharges gas, dynamically adjusting the internal and external pressure difference, avoiding structural damage caused by the expansion of internal gas during the ascent, improving safety and durability, and is particularly suitable for deep-water applications.

[0027] In this utility model, the box body unit 1 also includes a first extension portion 102 disposed at the top of the box body 101, and a plurality of first mounting holes 103 are provided on the first extension portion 102.

[0028] In this embodiment, the box body unit 1 includes a box body 101, which provides the main space for containing items and supports pressure regulation through a pressure relief port 104, providing basic protection for the internal items. It works in conjunction with a one-way valve 5 to achieve pressure balance, ensuring the functionality of the box body under high pressure. A first extension portion 102 is located at the top of the box body 101, serving as an extension structure of the box body unit 1. It provides a mounting base for the first mounting hole 103, enhancing the structural strength of the top of the box body, facilitating a fixed connection with the lid unit 2, and improving overall pressure resistance and assembly stability. Several first mounting holes 103 are formed on the first extension portion 102 to receive screws or other fasteners, connecting with the lid unit 2. Multi-point fixing distributes the force, ensuring a tight fit between the lid and the box body, improving sealing and pressure resistance, and preventing loosening under high pressure. The first extension portion 102 and the first mounting holes 103 work together with the box body unit 1 to strengthen the top connection structure, enhancing the pressure resistance and sealing stability of the waterproof high-pressure box, making it more suitable for deep water or high-pressure environments, protecting the internal items and extending its service life.

[0029] In this utility model, the lid unit 2 also includes a second extension portion 202 disposed on the outer wall of the lid body 201, and a plurality of third mounting holes 203 are provided on the second extension portion 202; it also includes a mounting groove 204 disposed on the lid body 201, and the sealing ring 3 is disposed in the mounting groove 204.

[0030] In this embodiment, the lid unit 2 is disposed at the top of the body unit 1, forming a sealed structure to enclose the body 101. It works in conjunction with the sealing ring 3 to achieve a waterproof seal, protecting the internal items from external moisture or pressure and improving overall stability. The second extension 202 is disposed on the outer wall of the lid body 201, serving as an extension structure of the lid. It provides a mounting base for the third mounting hole 203, enhancing the structural strength of the lid edge, facilitating a fixed connection with the body unit 1, and improving pressure resistance and assembly reliability. Several third mounting holes 203 are disposed on the second extension 202 for receiving screws, and are connected to the first mounting hole 101. 3. The lid is fixed in conjunction with the other parts of the box, and the force is distributed through multiple fixing points to ensure a tight fit between the lid and the box body, improving the sealing and pressure resistance performance and adapting to high-pressure environments. The mounting groove 204 is set on the lid body 201 to embed the sealing ring 3, fix its position, enhance the stability and fit of the sealing ring 3, improve the waterproof effect, and ensure no leakage at the connection under high pressure. The second extension 202, the third mounting hole 203 and the mounting groove 204 work together with the lid unit 2 to optimize the fixing and sealing structure. This improves the pressure resistance, sealing performance and structural stability of the waterproof high-pressure box, making it more suitable for deep water or high-pressure environments and protecting the contents.

[0031] In this utility model, the lid unit 2 and the body unit 1 are fixedly connected by several first screws 4 passing through the third mounting hole 203 and screwed into the first mounting hole 103.

[0032] In this embodiment, the lid unit 2 is located at the top of the body unit 1, forming a sealed structure to enclose the box body 101. It works in conjunction with the sealing ring 3 to provide waterproof protection, ensuring that the internal items are protected from external moisture or pressure, thus improving overall sealing. The body unit 1 includes the box body 101, providing space for accommodating items. The first mounting hole 103 supports a fixed connection, providing a stable connection base for the lid unit 2, enhancing structural strength, and adapting to high-pressure environments. Several first screws 4 pass through the third mounting hole 203 and are screwed into the first mounting hole 103, fixing the lid unit 2 to the body unit 1 via multi-point threading. Distributing stress enhances the pressure resistance and stability of the connection, preventing loosening or detachment under high pressure. The third mounting hole 203 is located in the lid unit 2, and the first mounting hole 103 is located in the body unit 1, serving together as a fixing channel for the first screw 4. This ensures the precision and uniformity of the screw connection, enhances sealing and structural reliability, and is suitable for extreme conditions. The first screw 4 achieves a firm connection between the lid unit 2 and the body unit 1 through the third mounting hole 203 and the first mounting hole 103. This improves the pressure resistance, sealing performance, and overall stability of the waterproof high-pressure box, making it more durable in deep water or high-pressure environments and protecting the internal items.

[0033] In this utility model, the side wall of the box body 101 is provided with a plurality of second mounting holes 105, and the one-way valve 5 is fixed to the second mounting holes 105 on the box body 101 by the second screw 6.

[0034] In this embodiment, the box body 101 serves as the main body of the box unit 1, providing space for accommodating items. The second mounting hole 105 on the side wall supports the fixing of the one-way valve 5, providing basic protection for the internal items and structural support for the installation of the one-way valve 5, ensuring the realization of the pressure regulation function. Several second mounting holes 105 are formed on the side wall of the box body 101, serving as fixing channels for the second screws 6, used to install the one-way valve 5, enhancing the connection accuracy and stability between the one-way valve 5 and the box body 101, ensuring its fixed position under high pressure, and improving assembly reliability. The one-way valve 5 is fixed to the second mounting hole 105 by the second screws 6, allowing for adjustment. The internal and external pressure difference allows for gas discharge when the internal pressure exceeds the limit, preventing structural damage caused by internal gas expansion during ascent, improving safety and durability, and adapting to deep water or high-pressure scenarios; the second screw 6 passes through the second mounting hole 105 to firmly fix the one-way valve 5 to the side wall of the housing 101, providing a reliable mechanical connection and ensuring that the one-way valve 5 does not loosen under high pressure, enhancing the stability and functionality of the overall structure; the second mounting hole 105 and the second screw 6 together achieve a stable installation of the one-way valve 5 on the housing 101; improving the pressure regulation capability, structural stability, and safety of the waterproof high-pressure box, making it more reliable in extreme environments and protecting the internal items.

[0035] In this utility model, the one-way valve 5 includes a cylindrical body 501, a valve seat 502 is fixed inside the cylindrical body 501, an opening 503 is opened at the center of the valve seat 502, and a hollow bracket is provided at one end of the cylindrical body 501 away from the valve seat 502. The inner side of the bracket is elastically connected to the spherical valve disc 505 by a spring 504; the spherical valve disc 505 and the valve seat 502 are in contact with each other and sealed.

[0036] In this embodiment, the one-way valve 5 regulates the internal and external pressure difference through internal components. When the internal pressure exceeds a certain threshold of the external pressure, gas is discharged to prevent structural damage caused by internal gas expansion under high pressure, thereby improving the safety and durability of the housing and adapting to deep-water scenarios. The cylindrical body 501 serves as the outer shell of the one-way valve 5, fixing the valve seat 502 and the bracket, providing structural support, ensuring the stability and sealing of the internal components, protecting the valve mechanism to operate normally under high pressure, and enhancing reliability. The valve seat 502 is fixed inside the cylindrical body 501, and its central opening 503 serves as a gas flow channel, which cooperates with the spherical valve disc 505 to achieve one-way airflow control, preventing external water or gas from entering, ensuring waterproof performance, and allowing internal overpressure release. The hollow support... The valve is mounted at one end of the cylindrical body 501 and elastically connected to the ball valve disc 505 via a spring 504. This spring controls the valve's movement, provides a spring return force, and ensures the valve disc closes when pressure is balanced, enhancing the valve's responsiveness and stability. The ball valve disc 505 seals against the valve seat 502 and is pushed open to release gas when internal pressure exceeds the limit, realizing the one-way valve's switching function. This ensures accurate pressure regulation and improves the box's protection capabilities in dynamic environments. The cylindrical body 501, valve seat 502, opening 503, bracket, spring 504, and ball valve disc 505 together constitute the one-way valve 5, achieving pressure regulation. This enhances the pressure balance capability, waterproof performance, and structural safety of the waterproof high-pressure box, making it more reliable in high-pressure or deep-water environments and protecting internal items.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A waterproof high-pressure box, characterized in that, include: Box body unit (1), the box body unit (1) includes a box body (101), and a pressure relief port (104) is provided on one side of the box body (101). The lid unit (2) includes a lid body (201), which is disposed at the top of the body unit (1) and forms a sealing structure with the body unit (1). A sealing ring (3) is provided between the box body unit (1) and the box cover unit (2) to seal the connection between the box body unit (1) and the box cover unit (2); One-way valve (5), the inlet end of the one-way valve (5) passes through the inside of the pressure relief port (104), the inlet end of the one-way valve (5) is located inside the box body unit (1), and the outlet end of the one-way valve (5) is located outside the one-way valve (5), used to discharge gas when the internal pressure exceeds a certain threshold of the external pressure, so as to regulate the internal and external pressure difference.

2. A waterproof high-pressure box according to claim 1, characterized in that, The box body unit (1) also includes a first extension (102) disposed at the top of the box body (101), and a plurality of first mounting holes (103) are provided on the first extension (102).

3. A waterproof high-pressure box according to claim 2, characterized in that, The lid unit (2) further includes a second extension (202) disposed on the outer wall of the lid body (201), and the second extension (202) is provided with a plurality of third mounting holes (203). It also includes a mounting groove (204) provided on the lid body (201), and the sealing ring (3) is provided in the mounting groove (204).

4. A waterproof high-pressure box according to claim 3, characterized in that, The lid unit (2) and the body unit (1) are fixedly connected by a number of first screws (4) passing through the third mounting hole (203) and screwed into the first mounting hole (103).

5. A waterproof high-pressure box according to claim 1, characterized in that, The side wall of the box (101) is provided with a number of second mounting holes (105), and the one-way valve (5) is fixed to the second mounting holes (105) on the box (101) by a second screw (6).

6. A waterproof high-pressure box according to claim 1, characterized in that, The one-way valve (5) includes a cylindrical body (501), a valve seat (502) is fixed inside the cylindrical body (501), an opening (503) is opened at the center of the valve seat (502), and a hollow bracket is provided at one end of the cylindrical body (501) away from the valve seat (502). The inner side of the bracket is elastically connected to the spherical valve disc (505) by a spring (504). The spherical valve disc (505) and the valve seat (502) are in contact with each other and are sealed.

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