A fixing device for an aircraft gravity refueling gun

Abstract

The invention discloses a fixing device for an aircraft gravity refueling gun, the device comprises a gravity refueling gun placement seat and a round nozzle placement seat, the gravity refueling gun placement seat comprises a refueling gun seat bottom plate and a refueling gun barrel fixing plate, both sides of the refueling gun seat bottom plate are bent upward in a U shape and fixedly connected to the refueling gun barrel fixing plate, a fixing cabin is formed between the two, springs are fixed on both sides of the inner side of the refueling gun seat bottom plate, each of the springs is connected to a refueling gun baffle, a first round hole is opened at the front of the refueling gun seat bottom plate for installing a sensor matched with an aircraft refueling vehicle, the round nozzle placement seat comprises a round nozzle barrel seat and an end cover matched with the round nozzle barrel seat, a fixing bracket is fixed at the bottom of the round nozzle barrel seat, the device has a small weight, is simple and quick to operate, is equipped with a round nozzle placement seat, and is installed in combination with the sensor used on the aircraft refueling vehicle to implement the electrical interlocking function of the aircraft refueling vehicle.

Description

Technical Field

[0001] The invention relates to the field of airport ground aircraft refueling equipment, in particular to a fixing device for an aircraft gravity refueling gun. Background Art

[0002] Aircraft refueling trucks are generally equipped with gravity refueling reel nozzles and gravity refueling guns for gravity refueling of aircraft. The gravity refueling gun must be fixed with an interlocking brake sensor for easy access. The vehicle brakes when the refueling gun is taken out, and the brakes are released when the refueling gun returns to its original position. In addition, aircraft fuel generally has two types: aviation kerosene and aviation gasoline. Due to the different characteristics of the two fuels, different nozzles are used for refueling, and mixing is not allowed to avoid danger. At present, in domestic and foreign aircraft refueling safety standards and related regulations, the nozzles used for the two fuels are distinguished by flat heads and round heads. However, refueling truck users still have the problem of mixing nozzles when repairing and replacing parts, which violates safety regulations.

[0003] At present, the gravity refueling gun of a refueling truck is generally fixed in a box-like manner. When the road is bumpy during driving, the refueling gun often moves out of position and causes braking, which has a great impact on driving safety. There is no differentiated use and fixing design for the two types of refueling guns, aviation kerosene and aviation gasoline, which may cause danger. At the same time, the current fixing device is costly and heavy, which makes it difficult to install and inconvenient to operate. Summary of the invention

[0004] In view of the above situation, the present invention provides a fixing device for an aircraft gravity refueling gun which is light in weight, easy and quick to operate, and equipped with a round-mouth nozzle mounting seat. At the same time, the fixing device is installed according to the sensor used on the aircraft refueling truck to realize the electrical interlocking function of the aircraft refueling truck.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A fixing device for an aircraft gravity refueling gun, the device comprising a gravity refueling gun placement seat and a round nozzle placement seat, the gravity refueling gun placement seat and the round nozzle placement seat are both fixed in the operating room of an aircraft refueling vehicle, the gravity refueling gun placement seat comprises a refueling gun seat bottom plate and a refueling gun barrel fixing plate, both sides of the refueling gun seat bottom plate are bent upward in a U shape and fixedly connected to the refueling gun barrel fixing plate, a fixed cabin is formed between the two, springs are fixed on both sides of the inner side of the refueling gun seat bottom plate, each of the springs is connected to a refueling gun baffle, a first circular hole is opened at the front of the refueling gun seat bottom plate, the round nozzle placement seat comprises a round nozzle barrel seat and an end cover matched with the round nozzle barrel seat, a fixing bracket is fixed to the bottom of the round nozzle barrel seat, and a second circular hole is opened at the bottom of the round nozzle barrel seat, the first circular hole and the second circular hole are used to install a sensor matched with the aircraft refueling vehicle.

[0007] Furthermore, a side of the round-mouth nozzle barrel seat close to the end cover is a round-mouth nozzle fixed end, and a diameter of the round-mouth nozzle fixed end is smaller than the length of the fixed cabin.

[0008] Furthermore, the materials of the fueling gun seat bottom plate, the fueling gun barrel fixing plate, the fueling gun baffle, the round-mouth nozzle barrel seat, the end cover and the fixing bracket are all galvanized steel plates.

[0009] Beneficial effects:

[0010] The fixing device for the aircraft gravity refueling gun provided by the present invention has the following beneficial effects:

[0011] The fixing device of the aircraft gravity refueling gun of the present invention has a small weight, is produced with galvanized steel plates as raw materials, has a simple assembly structure, can greatly save labor costs and equipment costs, and solves the problems of difficult installation and inconvenient operation of existing products; at the same time, for the two types of nozzles of the gravity refueling gun, a round nozzle placement seat is provided, which is installed in accordance with the sensors used on the aircraft refueling truck to implement the electrical interlocking function of the aircraft refueling truck, thereby avoiding the situation that the refueler forgets to put in the refueling gun barrel and drives the refueling truck away, thereby ensuring the safety of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of a gravity refueling gun placement seat of the present invention;

[0013] Figure 2 It is a structural schematic diagram of a round nozzle placement seat of the present invention;

[0014] Figure 3 It is a schematic diagram of the position of the second circular hole of the present invention.

[0015] In the figure: 1-refueling gun seat bottom plate, 2-refueling gun barrel fixing plate, 3-spring, 4-refueling gun baffle, 5-round nozzle barrel seat, 6-end cover, 7-fixing bracket, 8-fixing cabin, 9-round nozzle fixed end, 10-first circular hole, 11 second circular hole. DETAILED DESCRIPTION

[0016] The present invention is further described below in conjunction with the accompanying drawings.

[0017] like Figure 1-3As shown, the fixing device of the aircraft gravity refueling gun provided by the present invention comprises a gravity refueling gun placement seat and a round-mouth nozzle placement seat, both of which are fixed in the operating room of the aircraft refueling vehicle, and the gravity refueling gun placement seat comprises a refueling gun seat bottom plate 1 and a refueling gun barrel fixing plate 2, both sides of the refueling gun seat bottom plate 1 are bent upward in a U shape and fixedly connected to the refueling gun barrel fixing plate 2, forming a fixed cabin 8 therebetween, springs 3 are fixed on both sides of the inner side of the refueling gun seat bottom plate 1, and each of the springs 3 is connected to the refueling gun baffle 4, and the gravity refueling gun can be conveniently and quickly taken out by adjusting the refueling gun baffle 4, and the gravity refueling gun is fixed in the fixed cabin 8 by the tensioning force of the spring, and will not shake during driving.

[0018] A first circular hole 10 is opened at the front of the base plate 1 of the fueling gun seat for installing the electrical system sensor. The fueling gun seat can be fixed on the base plate 1 by installing a nut. The fueling gun barrel fixing plate 2 can ensure that the gravity fueling gun is placed within the sensing distance of the sensor, thereby realizing the interlocking function of the electrical system.

[0019] The round nozzle holder includes a round nozzle cartridge seat 5 and an end cover 6 matched with the round nozzle cartridge seat 5. The spare refueling gun barrel can be taken out by rotating the cover. A fixing bracket 7 is fixed at the bottom of the round nozzle cartridge seat 5, and a second round hole 11 is opened at the bottom of the round nozzle cartridge seat 5. Sensors are fixed in the first round hole 10 and the second round hole 11, and are connected to the signal of the safety interlock system of the aircraft refueling truck.

[0020] The side of the round nozzle cartridge seat 5 close to the end cover 6 is the round nozzle fixed end 9, the diameter of which is smaller than the length of the fixed compartment 8, ensuring that the flat nozzle cannot be completely placed in the round nozzle cartridge seat 5, thereby failing to trigger the induction switch. Only after the round nozzle is placed and the interlocking induction switch is triggered can the aircraft refueling vehicle be driven off the apron, thus ensuring safety. The fueling gun seat bottom plate 1, the fueling gun barrel fixing plate 2, the fueling gun baffle 3, the round nozzle cartridge seat 5, the end cover 6 and the fixing bracket 7 are all made of galvanized steel plates.

[0021] Regarding the limitation of the protection scope of the present invention, those skilled in the art should understand that, based on the technical solution of the present invention, various modifications or variations that can be made by those skilled in the art without creative work are still within the protection scope of the present invention.

Claims

1. A fixing device for an aircraft gravity refueling gun, characterized in that: The device comprises a gravity refueling gun mounting seat and a round nozzle mounting seat, both of which are fixed in the operating room of the aircraft refueling vehicle. The gravity refueling gun mounting seat comprises a refueling gun mounting base plate (1) and a refueling gun barrel fixing plate (2). Both sides of the refueling gun mounting base plate (1) are bent upward in a U-shape and are fixedly connected to the refueling gun barrel fixing plate (2), forming a fixed cabin (8) therebetween. Springs (3) are fixed on both sides of the inner side of the refueling gun mounting base plate (1), and each of the springs is The spring (3) is connected to the fuel gun baffle (4), the front part of the fuel gun seat bottom plate (1) is provided with a first circular hole (10), the round nozzle placement seat comprises a round nozzle cartridge seat (5) and an end cover (6) matched with the round nozzle cartridge seat (5), a fixing bracket (7) is fixed at the bottom of the round nozzle cartridge seat (5), and a second circular hole (11) is provided at the bottom of the round nozzle cartridge seat (5), the first circular hole (10) and the second circular hole (11) are used for installing a sensor matched with an aircraft refueling vehicle; The side of the round-mouth nozzle cartridge seat (5) close to the end cover (6) is a round-mouth nozzle fixed end (9), and the diameter of the round-mouth nozzle fixed end (9) is smaller than the length of the fixed cabin (8); The materials of the refueling gun seat bottom plate (1), the refueling gun barrel fixing plate (2), the refueling gun baffle (4), the round nozzle barrel seat (5), the end cover (6) and the fixing bracket (7) are all galvanized steel plates.

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