Adsorption type liquid nitrogen tank for airplane

Abstract

The utility model discloses an adsorption type liquid nitrogen tank for an airplane, which belongs to the technical field of liquid nitrogen tanks and is characterized in that the adsorption type liquid nitrogen tank comprises a liquid nitrogen tank body, a limiting cover is arranged on the surface of the liquid nitrogen tank body, a fixing block is fixedly connected to the rear side of the limiting cover, and an adsorption mechanism is arranged on the rear side of the fixing block; the adsorption mechanism comprises two vacuum pumps, a plurality of suction cups and a hollow plate, the bottoms of the vacuum pumps are fixedly connected with the top of the fixing block, the sides, close to the hollow plate, of the vacuum pumps fixedly communicate with the hollow plate, the front side of the hollow plate is fixedly connected with the rear side of the fixing block, and the front sides of the suction cups fixedly communicate with the rear side of the hollow plate; the problems that when most existing aircrafts carry liquid nitrogen containers, the liquid nitrogen containers are fixedly connected with the aircrafts through accessories through external bolts, when the liquid nitrogen containers need to be replaced or taken down for maintenance, many external bolts need to be detached, time and labor are wasted, and the using effect is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid nitrogen tanks, in particular to an adsorption type liquid nitrogen tank for aircraft. Background Art

[0002] Liquid nitrogen tanks can generally be divided into two types: liquid nitrogen storage tanks and liquid nitrogen transport tanks. Storage tanks are mainly used for static storage of liquid nitrogen indoors and are not suitable for long-distance transportation under working conditions. Liquid nitrogen is used as a coolant in the aerospace field due to its extremely low temperature characteristics. Whether it is a satellite, rocket or airplane, certain equipment needs to be cooled under high-intensity operation to maintain its performance and prevent overheating damage.

[0003] Most of the existing aircraft use external bolts to connect and fix the liquid nitrogen tank to the aircraft through accessories when carrying the liquid nitrogen tank. When the liquid nitrogen tank needs to be replaced or removed for maintenance, many external bolts need to be removed, which is time-consuming and laborious. Utility Model Content

[0004] The utility model provides an adsorption type liquid nitrogen tank for aircraft, aiming to solve the problem that most existing aircraft use external bolts to connect and fix the liquid nitrogen tank to the aircraft through accessories when carrying the liquid nitrogen tank, and when the liquid nitrogen tank needs to be replaced or removed for maintenance, many external bolts need to be disassembled, which is time-consuming and labor-intensive, thus affecting the use effect.

[0005] The utility model is implemented as follows: an adsorption type liquid nitrogen tank for aircraft comprises a liquid nitrogen tank body, a limit cover is arranged on the surface of the liquid nitrogen tank body, a fixed block is fixedly connected to the rear side of the limit cover, and an adsorption mechanism is arranged on the rear side of the fixed block;

[0006] The adsorption mechanism includes two vacuum pumps, a plurality of suction cups and a hollow plate. The bottom of the vacuum pump is fixedly connected to the top of the fixed block, the side of the vacuum pump close to the hollow plate is fixedly connected to the hollow plate, the front side of the hollow plate is fixedly connected to the rear side of the fixed block, and the front side of the suction cup is fixedly connected to the rear side of the hollow plate.

[0007] In order to achieve the effect of limiting the liquid nitrogen tank body inside the limiting cover, as a preferred adsorption liquid nitrogen tank for aircraft of the utility model, the front side of the limiting cover is fixedly connected to a limiting ring, and the surface of the liquid nitrogen tank body contacts the inner wall of the limiting ring.

[0008] In order to achieve the effect of connecting the liquid nitrogen tank body with the limiting cover, as a preferred adsorption liquid nitrogen tank for aircraft of the utility model, a limiting screw is arranged on the surface of the limiting ring, and the number of the limiting screws is three. The side of the limiting screw close to the limiting ring passes through the limiting ring and is in close contact with the surface of the liquid nitrogen tank body, and the surface of the limiting screw is connected to the internal thread of the limiting ring.

[0009] In order to facilitate the pulling of the limiting cover, as a preferred embodiment of the present invention, an adsorption liquid nitrogen tank for aircraft is provided with handles fixedly connected to both sides of the front side of the limiting ring.

[0010] In order to achieve the effect of making the connection between the limiting cover and the liquid nitrogen tank body more stable, as a preferred adsorption liquid nitrogen tank for aircraft of the utility model, the inner wall of the limiting cover is fixedly connected with an anti-slip pad, the number of the anti-slip pads is several and evenly distributed on the inner wall of the limiting cover, and the surface of the liquid nitrogen tank body is in close contact with the surface of the anti-slip pad.

[0011] In order to prevent the fixed block from bumping against the interior of the aircraft body, as a preferred adsorption liquid nitrogen tank for aircraft of the utility model, the front and rear sides of both sides of the fixed block are fixedly connected with anti-collision strips, and the material of the anti-collision strips is high elastic sponge.

[0012] In order to achieve the effect of conveniently moving the limiting cover, as a preferred adsorption liquid nitrogen tank for aircraft of the utility model, the bottom of the limiting cover is rotatably connected with rollers, and the number of the rollers is four and evenly distributed on the bottom of the limiting cover.

[0013] In order to facilitate the filling and discharging of liquid nitrogen into and out of the liquid nitrogen tank body, as a preferred adsorption liquid nitrogen tank for aircraft of the utility model, the top of the liquid nitrogen tank body is fixedly connected with a discharge pipe, and the left side of the discharge pipe is rotatably connected with a valve.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The adsorption liquid nitrogen tank for aircraft is moved into the limit cover by moving the liquid nitrogen tank body, and then limited by three limit screws, the limit cover and the liquid nitrogen tank body can be moved to a suitable position, so that the suction cup contacts the smooth installation position, and then the vacuum pump is controlled to evacuate the suction cup and the inside of the hollow plate, so that the suction cup can be firmly adsorbed to the smooth installation position, and the liquid nitrogen tank body can be connected to the position where the aircraft needs to carry the liquid nitrogen tank body. When the liquid nitrogen tank body needs to be replaced, the vacuum pump is controlled to exhaust air, so that the suction cup and the adsorption The limit cover and the liquid nitrogen tank body can be detached from the limit cover, and then the liquid nitrogen tank body can be taken out from the limit cover by turning three limit screws. For replacement or maintenance of the liquid nitrogen tank body, there is no need to dismantle many external bolts on the liquid nitrogen tank body in a narrow installation space for removal, replacement or maintenance, which saves time and effort, and avoids the problem that most existing aircraft use external bolts to connect and fix the liquid nitrogen tank to the aircraft through accessories when carrying the liquid nitrogen tank. When the liquid nitrogen tank needs to be replaced or removed for maintenance, many external bolts need to be disassembled, which is time-consuming and laborious. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the overall structure diagram of the adsorption liquid nitrogen tank for aircraft of the utility model;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the rear side of the fixing block in the utility model;

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure inside the limiting cover of the utility model;

[0019] Figure 4 It is a three-dimensional exploded schematic diagram of the limit ring and the limit screw in the utility model;

[0020] Figure 5 It is a schematic diagram of the three-dimensional connection between the anti-slip pad and the limiting cover in the utility model.

[0021] In the figure, 1. liquid nitrogen tank body; 2. discharge pipe; 3. valve; 4. adsorption mechanism; 401. vacuum pump; 402. suction cup; 403. hollow plate; 5. fixing block; 6. anti-collision strip; 7. limit cover; 8. roller; 9. limit ring; 10. limit screw; 11. handle; 12. anti-slip pad. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0024] See also Figure 1-5 The utility model provides a technical solution: an adsorption type liquid nitrogen tank for aircraft, comprising a liquid nitrogen tank body 1, a limiting cover 7 is arranged on the surface of the liquid nitrogen tank body 1, a fixing block 5 is fixedly connected to the rear side of the limiting cover 7, and an adsorption mechanism 4 is arranged on the rear side of the fixing block 5;

[0025] The adsorption mechanism 4 includes two vacuum pumps 401, a plurality of suction cups 402 and a hollow plate 403. The bottom of the vacuum pump 401 is fixedly connected to the top of the fixed block 5, the side of the vacuum pump 401 close to the hollow plate 403 is fixedly connected to the hollow plate 403, the front side of the hollow plate 403 is fixedly connected to the rear side of the fixed block 5, and the front side of the suction cup 402 is fixedly connected to the rear side of the hollow plate 403.

[0026] In this embodiment: by moving the liquid nitrogen tank body 1 to the inside of the limiting cover 7, and then limiting it with three limiting screws 10, the limiting cover 7 and the liquid nitrogen tank body 1 can be moved to a suitable position, so that the suction cup 402 contacts the smooth installation position, and then the vacuum pump 401 is controlled to work to evacuate the suction cup 402 and the inside of the hollow plate 403, so that the suction cup 402 can be firmly adsorbed to the smooth installation position, and the liquid nitrogen tank body 1 can be connected to the position where the aircraft needs to carry the liquid nitrogen tank body 1. When the liquid nitrogen tank body 1 needs to be replaced, the vacuum pump 401 is controlled to exhaust air, so that it can be replaced. By getting the suction cup 402 to be separated from the adsorption place, the limiting cover 7 and the liquid nitrogen tank body 1 can be moved to a spacious place, and then the liquid nitrogen tank body 1 can be taken out from the limiting cover 7 by rotating the three limiting screws 10. For replacement or maintenance of the liquid nitrogen tank body 1, there is no need to dismantle a large number of external bolts of the liquid nitrogen tank body 1 in a narrow installation space for removal, replacement or maintenance, which saves time and effort, and avoids the problem that most existing aircrafts use external bolts to connect and fix the liquid nitrogen tank to the aircraft through accessories when carrying the liquid nitrogen tank. When the liquid nitrogen tank needs to be replaced or removed for maintenance, it is necessary to dismantle a large number of external bolts, which is time-consuming and laborious.

[0027] As a technical optimization solution of the utility model, the front side of the limiting cover 7 is fixedly connected to the limiting ring 9, and the surface of the liquid nitrogen tank body 1 is in contact with the inner wall of the limiting ring 9.

[0028] In this embodiment, by moving the liquid nitrogen tank body 1 to the inside of the limiting cover 7, the limiting ring 9 can limit the liquid nitrogen tank body 1 inside the limiting cover 7, thereby achieving the effect of limiting the liquid nitrogen tank body 1 inside the limiting cover 7.

[0029] As a technical optimization solution of the utility model, a limiting screw 10 is arranged on the surface of the limiting ring 9, and the number of the limiting screws 10 is three. The side of the limiting screw 10 close to the limiting ring 9 passes through the limiting ring 9 and is in close contact with the surface of the liquid nitrogen tank body 1, and the surface of the limiting screw 10 is connected to the internal thread of the limiting ring 9.

[0030] In this embodiment: by rotating the limit screw 10, the surface of the limit screw 10 is in close contact with the surface of the liquid nitrogen tank body 1. At this time, the surface of the liquid nitrogen tank body 1 is in close contact with the surface of the anti-slip pad 12, and the liquid nitrogen tank body 1 and the limit cover 7 can be connected together, thereby achieving the effect of connecting the liquid nitrogen tank body 1 and the limit cover 7.

[0031] As a technical optimization solution of the present utility model, handles 11 are fixedly connected to both sides of the front side of the limiting ring 9.

[0032] In this embodiment, by holding the handle 11 and pushing the handle 11, the roller 8 at the bottom of the limiting cover 7 rotates, and the limiting cover 7 and the liquid nitrogen tank body 1 can be pulled, achieving the effect of conveniently pulling the limiting cover 7.

[0033] As a technical optimization solution of the utility model, an anti-skid pad 12 is fixedly connected to the inner wall of the limiting cover 7. The number of anti-skid pads 12 is several and evenly distributed on the inner wall of the limiting cover 7. The surface of the liquid nitrogen tank body 1 is in close contact with the surface of the anti-skid pad 12.

[0034] In this embodiment, by tightening the three limit screws 10, the surface of the liquid nitrogen tank body 1 will be in close contact with the surface of the anti-slip pad 12, so that the connection between the limit cover 7 and the liquid nitrogen tank body 1 can be made more stable, thereby achieving the effect of making the connection between the limit cover 7 and the liquid nitrogen tank body 1 more stable.

[0035] As a technical optimization solution of the utility model, the front side and the rear side of both sides of the fixed block 5 are fixedly connected with anti-collision strips 6, and the material of the anti-collision strips 6 is high-elastic sponge.

[0036] In this embodiment: when the limit cover 7 moves, the anti-collision strip 6 made of high-elasticity sponge material can protect the fixed block 5 to prevent the fixed block 5 from accidentally colliding with the aircraft body, thereby achieving the effect of preventing the fixed block 5 from colliding with the inside of the aircraft body.

[0037] As a technical optimization solution of the present utility model, the bottom of the limiting cover 7 is rotatably connected with rollers 8 , and the number of rollers 8 is four and evenly distributed at the bottom of the limiting cover 7 .

[0038] In this embodiment, when the limiting cover 7 is pushed, the roller 8 at the bottom of the limiting cover 7 rotates, so that the limiting cover 7 can be moved conveniently, thereby achieving the effect of conveniently moving the limiting cover 7.

[0039] As a technical optimization solution of the utility model, the top of the liquid nitrogen tank body 1 is fixedly connected with a discharge pipe 2, and the left side of the discharge pipe 2 is rotatably connected with a valve 3.

[0040] In this embodiment, liquid nitrogen can be charged into and discharged from the liquid nitrogen tank body 1 by rotating the valve 3 to control the opening and closing of the discharge pipe 2, thereby achieving the effect of conveniently charging and discharging liquid nitrogen into and from the liquid nitrogen tank body 1.

[0041] Working principle: First, move the liquid nitrogen tank body 1 to be carried by the aircraft to the inside of the limiting cover 7. At this time, the limiting ring 9 limits the liquid nitrogen tank body 1 inside the limiting cover 7, and then rotate the limiting screw 10. The limiting screw 10 is connected with the inner thread of the limiting ring 9. When the limiting ring 9 rotates, the limiting screw 10 can be moved. Move the limiting screw 10 until the surface of the limiting screw 10 is in close contact with the surface of the liquid nitrogen tank body 1. At this time, the surface of the liquid nitrogen tank body 1 will be in close contact with the surface of the anti-slip pad 12. The liquid nitrogen tank body 1 and the limiting cover 7 are connected together, and then the handle 11 is held and pushed to rotate the roller 8 at the bottom of the limiting cover 7, so that the limiting cover 7 and the liquid nitrogen tank body 1 can be moved to a suitable position, so that the suction cup 402 contacts the smooth installation position. When the limiting cover 7 moves, the anti-collision strip 6 made of high elastic sponge material can protect the fixing block 5 to prevent the fixing block 5 from accidentally bumping against the aircraft body, and then the vacuum pump 401 is controlled to work to move the suction cup 402. By evacuating the inside of the hollow plate 403, the suction cup 402 can be firmly adsorbed to the smooth installation position, and the liquid nitrogen tank body 1 can be connected to the position where the aircraft needs to carry the liquid nitrogen tank body 1. When the liquid nitrogen tank body 1 needs to be replaced, the vacuum pump 401 is controlled to exhaust air so that the suction cup 402 can be separated from the adsorption position, and the limiting cover 7 and the liquid nitrogen tank body 1 can be moved to a spacious place. Then, only three limiting screws 10 need to be rotated to take out the liquid nitrogen tank body 1 from the inside of the limiting cover 7 to replace or maintain the liquid nitrogen tank body 1. There is no need to disassemble many external bolts of the liquid nitrogen tank body 1 in the narrow installation space for removal, replacement or maintenance, which saves time and effort, and avoids the problem that most existing aircraft use external bolts to connect and fix the liquid nitrogen tank to the aircraft through accessories when carrying the liquid nitrogen tank. When the liquid nitrogen tank needs to be replaced or removed for maintenance, many external bolts need to be disassembled, which is time-consuming and labor-intensive. It should be noted that the liquid nitrogen tank is an existing mature technology that has been published and will not be described in detail here.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An adsorption type liquid nitrogen tank for aircraft, comprising a liquid nitrogen tank body (1), characterized in that: A limiting cover (7) is provided on the surface of the liquid nitrogen tank body (1); a fixing block (5) is fixedly connected to the rear side of the limiting cover (7); and an adsorption mechanism (4) is provided on the rear side of the fixing block (5); The adsorption mechanism (4) comprises two vacuum pumps (401), a plurality of suction cups (402) and a hollow plate (403); the bottom of the vacuum pump (401) is fixedly connected to the top of the fixed block (5); the side of the vacuum pump (401) close to the hollow plate (403) is fixedly connected to the hollow plate (403); the front side of the hollow plate (403) is fixedly connected to the rear side of the fixed block (5); and the front side of the suction cup (402) is fixedly connected to the rear side of the hollow plate (403).

2. The adsorption type liquid nitrogen tank for aircraft according to claim 1, characterized in that: The front side of the limiting cover (7) is fixedly connected to a limiting ring (9), and the surface of the liquid nitrogen tank body (1) is in contact with the inner wall of the limiting ring (9).

3. The adsorption type liquid nitrogen tank for aircraft according to claim 2, characterized in that: A limiting screw (10) is arranged on the surface of the limiting ring (9), and the number of the limiting screws (10) is three. The side of the limiting screw (10) close to the limiting ring (9) passes through the limiting ring (9) and is in close contact with the surface of the liquid nitrogen tank body (1), and the surface of the limiting screw (10) is connected to the internal thread of the limiting ring (9).

4. The adsorption type liquid nitrogen tank for aircraft according to claim 2, characterized in that: Handles (11) are fixedly connected to both sides of the front side of the limiting ring (9).

5. The adsorption type liquid nitrogen tank for aircraft according to claim 1, characterized in that: The inner wall of the limiting cover (7) is fixedly connected with an anti-skid pad (12); the number of the anti-skid pads (12) is several and evenly distributed on the inner wall of the limiting cover (7); the surface of the liquid nitrogen tank body (1) is in close contact with the surface of the anti-skid pad (12).

6. The adsorption type liquid nitrogen tank for aircraft according to claim 1, characterized in that: The front side and the rear side of both sides of the fixed block (5) are fixedly connected with anti-collision strips (6), and the material of the anti-collision strips (6) is high-elasticity sponge.

7. The adsorption type liquid nitrogen tank for aircraft according to claim 1, characterized in that: The bottom of the limiting cover (7) is rotatably connected to rollers (8), and the number of the rollers (8) is four and they are evenly distributed on the bottom of the limiting cover (7).

8. The adsorption type liquid nitrogen tank for aircraft according to claim 1, characterized in that: The top of the liquid nitrogen tank body (1) is fixedly connected to a discharge pipe (2), and the left side of the discharge pipe (2) is rotatably connected to a valve (3).

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