Buoyancy adjusting device of multi-channel oil bag

Abstract

The utility model belongs to the technical field of underwater vehicles. The buoyancy adjusting device of the multi-channel oil bag comprises a pressure-resistant watertight oil tank, an oil bag assembly and an installation frame. The pressure-resistant watertight oil tank is arranged on the mounting frame, and the oil bag assemblies are evenly distributed around the pressure-resistant watertight oil tank. The pressure-resistant watertight oil tank and the oil bag assembly are both installed on the installation frame to form a whole. A plurality of oil bag components are arranged; the adjacent oil bag assemblies are connected through a pipeline, and each oil bag assembly is connected with the pressure-resistant watertight oil tank through a pipeline. Compared with the prior art, the reliability is enhanced, when a certain channel breaks down, other channels can still work, the failure of an adjusting system cannot be caused, and the stability and the safety of equipment are improved; due to the multi-channel design, the size of each oil bag is smaller, the oil bags are easy to check and maintain, and the maintenance cost and difficulty are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of underwater submersibles, and in particular relates to a buoyancy regulating device for a multi-channel oil bag. Background Art

[0002] Buoyancy control technology has long been a research hotspot in fields such as marine engineering, submersible design, underwater scientific exploration, and resource exploration. With the continuous development of deep-sea resources and the growing demand for underwater operations, the requirements for buoyancy control devices are also increasing. Traditional buoyancy control devices, such as those that adjust buoyancy by changing the counterweight, are simple and direct, but the adjustment range is limited and the adjustment process is relatively cumbersome.

[0003] In recent years, researchers at home and abroad have proposed airbag-type buoyancy adjustment devices, but airbag-type buoyancy adjustment devices have disadvantages such as low reliability, high maintenance cost, large influence of environmental factors, and low adjustment accuracy.

[0004] Patent publication CN101870351A discloses a deep-sea oil bladder buoyancy control device. It includes a control cabin, a pressure-resistant oil tank, and a telescopic oil bladder. Its characteristics are as follows: the upper and lower hemispheres of the control cabin are connected, with a mounting plate fixed to the lower hemisphere. A DC motor, motor driver, hydraulic pump, and control circuit board are mounted on the mounting plate. The lower hemisphere is provided with an oil inlet and outlet. The pressure-resistant oil tank includes a left hemisphere, a cylindrical body, and a right hemisphere, with the left and right hemispheres connected to the two sides of the cylindrical body. The telescopic oil bladder includes an upper end cap, a lower end cap, an outer sleeve, an oil filter, and a displacement-type liquid level sensor. The outer sleeve is connected to the upper and lower end caps, respectively. The oil filter is fixed to the lower end cap, and the displacement-type liquid level sensor is mounted on the oil filter. The oil inlet of the control cabin is connected to the telescopic oil bladder, and the oil outlet of the control cabin is connected to the pressure-resistant oil tank.

[0005] The regulating device of the prior art has the following problems: when one channel fails, the entire system cannot work, resulting in failure of the regulating system; and the prior art adopts a single oil sac design, which results in a large oil sac and makes inspection and maintenance difficult. Utility Model Content

[0006] In view of the defects in the prior art, the purpose of the present invention is to provide a buoyancy regulating device for a multi-channel oil bag.

[0007] The buoyancy regulating device of the multi-channel oil bag provided by the utility model comprises three components: a pressure-resistant watertight oil tank, an oil bag assembly, and a mounting frame; the pressure-resistant watertight oil tank is arranged on the mounting frame, and the oil bag assembly is evenly distributed around the pressure-resistant watertight oil tank;

[0008] The pressure-resistant watertight oil tank and oil bag assembly are installed on the mounting frame to form a whole;

[0009] The number of oil bladder assemblies is multiple;

[0010] Adjacent oil bladder components are connected through pipelines, and each oil bladder component is connected to the pressure-resistant watertight oil tank through a pipeline.

[0011] Preferably, the oil bag assembly includes an oil bag upper cover plate, an organic glass cabin, an oil bag lower cover plate, a rubber bag, a connecting rod and a fixing flange.

[0012] The oil bag upper cover plate is fixedly connected to the connecting rod;

[0013] The lower cover plate, rubber bag and fixing flange are fixed on the connecting rod in sequence;

[0014] The organic glass cabin is fixed between the oil bag upper cover plate and the rubber bag.

[0015] Preferably, the rubber bag is provided with a fixing portion along the edge, a sealing ring is provided on the fixing portion, and the fixing flange and the oil bag lower cover plate squeeze the sealing ring provided on the fixing portion by providing a sealing groove.

[0016] Preferably, the oil bag assembly further includes a guide cover and a spring. The guide cover is arranged at the upper end of the rubber bag; and the spring is installed between the oil bag upper cover plate and the guide cover.

[0017] Preferably, the pressure-resistant watertight oil tank comprises: an oil tank upper cover plate, an oil tank body, an oil tank lower cover plate, a liquid level sensor sealing cabin and an integrated valve block;

[0018] The oil tank upper cover is mounted on the upper end of the oil tank body;

[0019] The fuel tank lower cover is mounted on the lower end of the fuel tank body;

[0020] The oil tank upper cover plate is provided with a liquid level sensor rod guide seat;

[0021] A liquid level sensor sealed cabin is provided on the lower cover plate of the oil tank;

[0022] A liquid level sensor is installed in the liquid level sensor sealed cabin;

[0023] The liquid level sensor sealed cabin is equipped with a watertight connector for the liquid level sensor;

[0024] An integrated valve block is installed on the lower cover plate of the oil tank, and the oil outlet of the integrated valve block is connected to the oil inlet pipe joint of the oil bag assembly.

[0025] Preferably, an oil pump motor is installed inside the pressure-resistant watertight oil tank, and an oil pump motor watertight connector is provided on the oil pump motor, which is connected to the oil tank watertight connector provided on the lower cover plate of the oil tank.

[0026] Preferably, an air vent is provided on the upper cover plate of the fuel tank, and the air vent is connected to the air vent plug through a thread.

[0027] Preferably, the rubber bag is a cup-shaped structure with a larger bottom and a smaller top, and an inner wall thickness of 3 mm.

[0028] Preferably, the oil bag lower cover is equipped with an oil inlet pipe joint;

[0029] The oil inlet pipe joint is connected to the corrugated pipeline of the oil outlet of the integrated valve block arranged on the pressure-resistant watertight oil tank.

[0030] Preferably, the mounting frame is formed by bending and welding a hollow tube with an outer diameter of 40 mm and an inner diameter of 30 mm.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] Compared with the existing ones, the reliability of this invention is enhanced. When a channel fails, other channels can still work without causing failure of the adjustment system, thereby improving the stability and safety of the equipment; maintenance is simple, and the multi-channel design can make the volume of each oil bag smaller, easy to inspect and maintain, reducing maintenance costs and difficulty; compared with the seawater pump type hydraulic buoyancy adjustment system or other gas-liquid mixed buoyancy adjustment system, the manufacturing cost is low, and it is more suitable for the buoyancy adjustment of large and medium-sized submersibles in shallow waters; the adjustment accuracy is high, and by controlling the oil amount in different channels, the buoyancy and posture of the bottom-sitting buoy can be adjusted more accurately to adapt to different marine environments and operational requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0034] Figure 1 This is an axonometric view of the multi-channel oil bag buoyancy regulating device of the utility model;

[0035] Figure 2 This is a cross-sectional structural diagram of the oil bag assembly of the utility model;

[0036] Figure 3 This is a front view of the pressure-resistant watertight oil tank assembly of the utility model;

[0037] Figure 4 This is a cross-sectional structural diagram of the pressure-resistant watertight oil tank assembly of the utility model;

[0038] Figure 5 This is a front view of the installation frame of the multi-channel oil bag buoyancy adjustment device of the utility model;

[0039] Figure 6 This is a working hydraulic principle diagram of the buoyancy regulation of the utility model.

[0040] The figure shows:

[0041] Pressure-resistant watertight oil tank 1 Fixed flange 10 Liquid level sensor watertight connector 19 Oil bladder assembly 2 Oil bladder lower cover 11 Fuel tank oil unloading plug 20

[0042] Mounting frame 3 Oil inlet pipe joint 12 Integrated valve block 21

[0043] Oil bag cover 4 Oil discharge port plug 13 Fuel tank watertight connector 22

[0044] Guide cover 5 Fuel tank cover 14 Air bleed plug 23

[0045] Spring 6 Oil tank body 15 Oil pump motor 24

[0046] Organic glass cabin 7 Fuel tank lower cover 16 One-way valve 25

[0047] Connecting rod 8 Liquid level sensor rod guide seat 17 Liquid level sensor 26

[0048] Rubber bladder 9 Liquid level sensor sealed cabin 18 Solenoid valve 27 DETAILED DESCRIPTION

[0049] The present invention will be described in detail below with reference to specific embodiments. The following embodiments will help those skilled in the art further understand the present invention, but are not intended to limit the present invention in any way. It should be noted that a person skilled in the art may make various variations and improvements without departing from the scope of the present invention. Such variations and improvements are all within the scope of protection of the present invention.

[0050] This utility model provides a buoyancy adjustment device with a multi-channel oil bladder. This device combines hydraulic oil with the retractable properties of the bladder to achieve rapid and precise buoyancy adjustment. This device not only provides more stable and reliable buoyancy support for underwater operations, but also adapts to varying water depths and operational requirements, providing strong support for marine engineering and underwater scientific exploration.

[0051] like Figure 1 As shown, the multi-channel oil bladder buoyancy regulating device of the present invention mainly includes three components: a pressure-resistant watertight oil tank 1, an oil bladder assembly 2, and a mounting frame 3. The pressure-resistant watertight oil tank 1 is arranged on the mounting frame 3, and the oil bladder assembly 2 is evenly distributed around the pressure-resistant watertight oil tank 1. The pressure-resistant watertight oil tank 1 and the oil bladder assembly 2 are both mounted on the mounting frame 3 to form a whole.

[0052] Among them, the number of oil bladder components 2 is multiple; preferably 6; the oil bladder components 2 are connected to each other through pipelines, and the pressure-resistant watertight oil tank 1 and the oil bladder components 2 are connected through pipelines; more specifically, adjacent oil bladder components 2 are connected through pipelines, and each oil bladder component 2 is connected to the pressure-resistant watertight oil tank 1 through a pipeline.

[0053] like Figure 2 As shown, the oil bladder assembly 2 includes an oil bladder upper cover plate 4, an organic glass cabin 7, an oil bladder lower cover plate 11, a rubber bladder 9, a connecting rod 8 and a fixing flange 10, thereby forming an internal circulation cabin body.

[0054] The oil bag upper cover plate 4 is connected to the fixed flange 10 and the oil bag lower cover plate 11 by a connecting rod 8. The oil bag upper cover plate 4 is fixedly connected to the connecting rod 8;

[0055] The lower cover plate 11, the rubber bag 9 and the fixing flange 10 are fixed to the connecting rod 8 in sequence by screws; wherein, the rubber bag 9 is provided with a fixing portion along the edge, and a sealing ring is provided on the fixing portion. The fixing flange 10 and the lower cover plate 11 squeeze the sealing ring provided on the fixing portion by providing a sealing groove, thereby achieving sealing of the rubber bag 9.

[0056] The oil bag upper cover plate 4, the fixing flange 10, the oil bag lower cover plate 11 and the connecting rod 8 are all made of 6061 aluminum alloy.

[0057] The organic glass cabin 7 is fixed between the oil bag upper cover 4 and the rubber bag 9. A water inlet groove is provided at the upper end of the organic glass cabin 7 so that water can enter between the organic glass cabin 7 and the rubber bag 9, thereby performing pressure balance and lubrication.

[0058] The guide cover 5 is arranged at the upper end of the rubber bag 9; the spring 6 is installed between the oil bag upper cover plate 4 and the guide cover 5, and its function is: the liquid level of the oil bag assembly 2 is lower than that of the pressure-resistant watertight oil tank 1, so that as much oil as possible can be returned to the pressure-resistant watertight oil tank 1.

[0059] Furthermore, the rubber bag 9 is a cup-shaped structure with a larger bottom and a smaller top, an inner wall thickness of 3 mm, and a watertight protrusion is provided at the fixing flange 10. After the fixing flange 10 and the bag lower cover plate 11 are installed and tightened, a watertight cabin is formed.

[0060] Furthermore, an oil inlet pipe joint 12 is installed at the lower cover plate 11 of the oil bag, and the oil inlet pipe joint 12 is connected to the corrugated pipe of the oil outlet of the integrated valve block 21 provided on the pressure-resistant watertight oil tank 1 .

[0061] Furthermore, an oil discharge port plug 13 is installed at the oil bag lower cover plate 11 to drain the oil in the rubber bag 9 during maintenance.

[0062] Among them, the oil used is high temperature resistant, high ignition point, colorless and odorless hydraulic oil.

[0063] As attached Figure 3 As shown, the pressure-resistant watertight fuel tank 1 comprises: a fuel tank upper cover plate 14, a fuel tank body 15, a fuel tank lower cover plate 16, a liquid level sensor sealed cabin 18, and an integrated valve block 21. The fuel tank upper cover plate 14 is mounted on the upper end of the fuel tank body 15; the fuel tank lower cover plate 16 is mounted on the lower end of the fuel tank body 15; the liquid level sensor sealed cabin 18 is provided on the fuel tank lower cover plate 16;

[0064] A liquid level sensor rod guide seat 17 is provided on the oil tank upper cover plate 14 ; the liquid level sensor rod guide seat 17 serves to orient the rod of the liquid level sensor 26 .

[0065] The liquid level sensor 26 is installed in the liquid level sensor sealed cabin 18.

[0066] Furthermore, a liquid level sensor watertight connector 19 is installed on the liquid level sensor sealed cabin 18, which transmits data with the control cabin through a watertight cable and supplies power to the liquid level sensor 26.

[0067] The fuel tank upper cover 14 is provided with an air vent, which is connected to the air vent plug 23 through a thread, so that the air pressure in the fuel tank can be released when the fuel tank upper cover 14 is opened.

[0068] Furthermore, an integrated valve block 21 is installed on the lower cover plate of the oil tank. The integrated valve block 21 has 6 oil outlets, which are respectively connected to 6 hydraulic bellows pipes and connected to the oil inlet pipe joints of 6 oil bag assemblies.

[0069] Furthermore, the oil tank lower cover 16 is provided with an oil tank watertight connector 22 which is connected and communicated with the interior of the pressure-resistant watertight oil tank 1. The oil tank watertight connector 22 is used to start and stop the oil pump motor 24 in the pressure-resistant watertight oil tank, thereby realizing the oil filling and oil draining actions.

[0070] As attached Figure 4 As shown, an oil pump motor 24 is installed inside the pressure-resistant watertight oil tank. An oil pump motor watertight connector is provided on the oil pump motor 24 . The oil pump motor watertight connector is connected to the oil tank watertight connector 22 provided on the oil tank lower cover 16 .

[0071] Furthermore, a solenoid valve 27 is installed inside the pressure-resistant watertight oil tank 1, which is used to receive instructions and conduct the oil circuit. The solenoid valve 27 is preferably a two-position two-way solenoid valve;

[0072] Furthermore, a one-way valve 25 is installed inside the pressure-resistant watertight oil tank 1. Its function is: when the oil bladder assembly 2 is simultaneously subjected to the spring force and the ambient static pressure, the internal pressure value of the oil bladder assembly 2 is higher than the internal pressure value of the pressure-resistant watertight oil tank 1, driving the one-way valve to close, so that the overall drainage volume of the system remains unchanged;

[0073] The solenoid valve 27 and the one-way valve 25 are both connected to the oil pump motor 24;

[0074] Furthermore, the pressure-resistant watertight oil tank 1 and the six oil bag assemblies form an internal circulation oil circuit.

[0075] As attached Figure 5 As shown, the mounting frame 3 is formed by bending and welding a hollow tube with an outer diameter of 40 mm and an inner diameter of 30 mm.

[0076] This utility model provides a buoyancy control device with a multi-channel oil bladder for certain types of bottom-mounted buoys or small and medium-sized submersibles. By utilizing a specially designed oil bladder as the core component for buoyancy control, combined with oil pump motor control and sensor technology, rapid and precise buoyancy adjustment is achieved. The buoyancy control device is hexagonal in shape and consists of a pressure-resistant, watertight oil tank, an oil bladder, an integrated valve block, hydraulic bellows piping, and a mounting frame. The pressure-resistant oil tank houses a liquid level sensor, an oil pump motor, and a solenoid valve.

[0077] As attached Figure 6 As shown, the working principle of the utility model is:

[0078] When the upper computer issues a floating instruction, the oil pump motor 24 starts running, and the metering pump pumps oil from the pressure-resistant watertight oil tank 1 into the six oil bag assemblies 2. The oil level inside the pressure-resistant watertight oil tank 1 gradually decreases, and at the same time, the float of the liquid level sensor 26 decreases accordingly; the rubber bag 9 inside the oil bag assembly 2 gradually expands under the action of internal pressure, and pushes the spring 6 until sufficient buoyancy is obtained; when the buoyancy is sufficient or the oil level inside the pressure-resistant watertight oil tank 1 is too low, the oil pump motor 24 stops running. At this time, the rubber bag 9 is simultaneously subjected to the spring force and the static pressure of the environment. The internal pressure value of the oil bag assembly 2 is higher than the internal pressure value of the pressure-resistant watertight oil tank 1, driving the one-way valve 25 to close, and the overall drainage volume of the system remains unchanged. When the upper computer issues a diving instruction, the solenoid valve 27 opens, Figure 6 The left oil circuit in the center is open. The oil in the oil bladder assembly 2 is returned to the pressure-resistant watertight oil tank 1 under the combined action of spring 6 and ambient static pressure. The oil in the pressure-resistant watertight oil tank 1 gradually rises, and the float of the liquid level sensor 26 rises accordingly. The rubber bladder 9 gradually returns to its minimum state, and the total buoyancy of the system decreases.

[0079] The utility model controls the flow of hydraulic oil between the oil bag and the oil tank and utilizes the volume adjustability of the oil bag to realize the buoyancy adjustment device of the bottom-seat submersible buoy, aiming to obtain stable and large buoyancy.

[0080] This new device combines the hydraulic oil and the retractable nature of the oil bladder to achieve rapid and precise adjustment of buoyancy. This device not only provides more stable and reliable buoyancy support for underwater operations, but also adapts to varying water depths and operational requirements, providing strong support for marine engineering and underwater scientific exploration.

[0081] In the description of this application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0082] The above describes specific embodiments of the present invention. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art may make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. The embodiments of this application and the features in the embodiments may be combined with each other in any manner unless there is a conflict.

Claims

1. A buoyancy regulating device with a multi-channel oil bag, characterized in that: include: The pressure-resistant watertight oil tank (1), the oil bag assembly (2), and the mounting frame (3) are three components; the pressure-resistant watertight oil tank (1) is arranged on the mounting frame (3), and the oil bag assembly (2) is evenly distributed around the pressure-resistant watertight oil tank (1); The pressure-resistant watertight oil tank (1) and the oil bag assembly (2) are both mounted on the mounting frame (3) to form an integral body; The number of the oil bag components (2) is multiple; Adjacent oil bladder components (2) are connected via pipelines, and each oil bladder component (2) is connected to the pressure-resistant watertight oil tank (1) via a pipeline.

2. The buoyancy regulating device of the multi-channel oil bag according to claim 1, characterized in that: The oil bag assembly (2) includes an oil bag upper cover plate (4), a plexiglass cabin (7), an oil bag lower cover plate (11), a rubber bag (9), a connecting rod (8) and a fixing flange (10). The oil bag upper cover plate (4) and the connecting rod (8) are fixedly connected; The oil bag lower cover plate (11), the rubber bag (9), and the fixing flange (10) are fixed on the connecting rod (8) in sequence; The organic glass cabin (7) is fixed between the oil bag upper cover plate (4) and the rubber bag (9).

3. The buoyancy regulating device of the multi-channel oil bag according to claim 2, characterized in that: The rubber bag (9) is provided with a fixing portion along the edge, a sealing ring is provided on the fixing portion, and the fixing flange (10) and the oil bag lower cover plate (11) squeeze the sealing ring provided on the fixing portion through the sealing groove.

4. The buoyancy regulating device of the multi-channel oil bag according to claim 2, characterized in that: The oil bag assembly (2) further comprises a guide cover (5) and a spring (6). The guide cover (5) is arranged on the upper end of the rubber bag (9); and the spring (6) is installed between the oil bag upper cover plate (4) and the guide cover (5).

5. The buoyancy regulating device of the multi-channel oil bag according to claim 1, characterized in that: The pressure-resistant watertight oil tank (1) comprises: an oil tank upper cover plate (14), an oil tank body (15), an oil tank lower cover plate (16), a liquid level sensor sealing cabin (18) and an integrated valve block (21); The oil tank upper cover plate (14) is mounted on the upper end of the oil tank body (15); The oil tank lower cover plate (16) is installed at the lower end of the oil tank body (15); A liquid level sensor rod guide seat (17) is provided on the oil tank upper cover (14); A liquid level sensor sealing cabin (18) is provided on the oil tank lower cover (16); A liquid level sensor (26) is installed in the liquid level sensor sealed cabin (18); A liquid level sensor watertight connector (19) is installed on the liquid level sensor sealed cabin (18); An integrated valve block (21) is installed on the lower cover plate of the oil tank, and the oil outlet of the integrated valve block (21) is connected to the oil inlet pipe joint of the oil bag assembly (2).

6. The buoyancy regulating device of the multi-channel oil bag according to claim 1, characterized in that: An oil pump motor (24) is installed inside the pressure-resistant watertight oil tank (1). The oil pump motor (24) is provided with an oil pump motor watertight connector. The oil pump motor watertight connector is connected to an oil tank watertight connector (22) provided on the oil tank lower cover (16).

7. The buoyancy regulating device of the multi-channel oil bag according to claim 5, characterized in that: The oil tank upper cover plate (14) is provided with an air vent, which is connected to the air vent plug (23) via a thread.

8. The buoyancy regulating device of the multi-channel oil bag according to claim 2, characterized in that: The rubber bag (9) is a cup-shaped structure with a larger bottom and a smaller top, and the inner wall thickness is 3mm.

9. The buoyancy regulating device of the multi-channel oil bag according to claim 2, characterized in that: The oil bag lower cover plate (11) is equipped with an oil inlet pipe joint (12); The oil inlet pipe joint (12) is connected to the corrugated pipeline of the oil outlet of the integrated valve block (21) provided on the pressure-resistant watertight oil tank (1).

10. The buoyancy regulating device of the multi-channel oil bag according to claim 1, characterized in that: The installation frame (3) is formed by bending and welding a hollow tube with an outer diameter of 40 mm and an inner diameter of 30 mm.

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