Combined aircraft refueling gun

Abstract

The utility model relates to the technical field of airplane refueling gun, and the application discloses a combined airplane refueling gun, including the refueling gun main part, the refueling gun main part front end setting oil gun head, the refueling gun main part bottom end clamping fixed have the adapter, the adapter inside is provided with the filter, the adapter bottom is fixed with the short connector, the short connector bottom end with the oil pipe intercommunication, the short connector with the oil pipe are fixedly connected through the hoop, the utility model discloses a setting adapter in the refueling gun main part oil inlet end, and setting filter in the adapter inside, and through the hoop with filter fixed together, make the oil pipe with oil transmission to the refueling gun main part inside through the adapter, filter through the filter, solve the problem that the domestic in use gravity refueling gun can not give consideration to the self-sealing and filter function temporarily.

Description

Technical Field

[0001] This utility model application relates to the field of aircraft refueling nozzle technology, specifically a combined aircraft refueling nozzle. Background Technology

[0002] Aircraft refueling nozzles are specialized refueling equipment designed specifically for aircraft. They are used to efficiently and safely deliver fuel to aircraft fuel tanks. Their core functions include precise control of fuel flow, prevention of static electricity buildup, ensuring a leak-proof seal, and adapting to the special physical and chemical properties of aviation fuel. They are typically made of lightweight, corrosion-resistant materials and equipped with quick-connect couplings and self-locking mechanisms that meet international aviation standards to prevent misoperation. Some models integrate pressure regulation, filtration systems, and emergency shut-off devices to deal with emergencies. They are divided into two categories based on the refueling method: pressure refueling and gravity refueling. They are compatible with various types of aviation fuel and are one of the key tools for modern airport ground support.

[0003] Currently, domestically produced gravity-feeding nozzles still have shortcomings in functional integration. They cannot simultaneously possess both self-sealing and filtration functions. The self-sealing function can prevent fuel spillage, while the filtration function can ensure the cleanliness of the fuel. Due to technological limitations, existing products can only achieve one of these functions, which requires the additional installation of filters or reliance on manual monitoring during operation, increasing operational risks. This technological shortcoming restricts the high-end application of domestically produced fuel nozzles and urgently needs to be addressed through technological innovation to achieve functional integration. Summary of the Invention

[0004] To address the issue that domestically produced gravity refueling nozzles currently in use cannot simultaneously provide self-sealing and filtration functions, this invention provides a combined aircraft refueling nozzle to solve the aforementioned problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A combined aircraft refueling nozzle includes a refueling nozzle body, a nozzle head at the front end of the refueling nozzle body, an adapter fixedly engaged at the bottom end of the refueling nozzle body, a filter inside the adapter, a short connector fixed at the bottom end of the adapter, the bottom end of the short connector communicating with an oil pipe, and the short connector and the oil pipe being fixedly connected by a clamp.

[0007] Furthermore, the fuel nozzle includes a circular fuel inlet and a flat nozzle, and the fuel nozzle is detachably fixed to the fuel nozzle body via threads.

[0008] Furthermore, a limiting groove is provided on the outer side of the adapter, and threaded holes that mate with the limiting groove are provided on one end of each side of the short connector above the limiting groove.

[0009] Furthermore, the top surface of the short connector is threaded with limit bolts on both sides through threaded holes, and the limit bolts extend into the limit groove.

[0010] Furthermore, a sealing rubber is fixed inside the short connector, and the top surface of the sealing rubber is in contact with the bottom end of the filter.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. In this utility model, by setting an adapter at the oil inlet end of the fuel nozzle body and setting a filter inside the adapter, and fixing the adapter and the filter together with a clamp, the oil is filtered by the filter when the oil pipe transmits the oil to the inside of the fuel nozzle body through the adapter. This solves the problem that domestically produced gravity fuel nozzles cannot simultaneously achieve self-sealing and filtration functions.

[0013] 2. In this utility model, a connection port is set at the front end of the fuel nozzle body, and the fuel nozzle head is detachably threaded and fixed to the connection port. At the same time, the shape of the fuel nozzle head includes round and flat nozzle, so that the operator can change the shape and style of the fuel nozzle head at will according to the specific work scenario, thereby improving the adaptability of the fuel nozzle body during operation. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural schematic diagram according to an embodiment of the present application;

[0016] Figure 2 yes Figure 1 A three-dimensional schematic diagram of the filter structure in the embodiment shown;

[0017] Figure 3 yes Figure 1 The embodiment shown is a three-dimensional schematic diagram of the filter structure viewed from below.

[0018] The meanings of the labels in the attached diagram are as follows: 1. Fuel nozzle body; 2. Fuel nozzle head; 3. Adapter; 4. Filter; 5. Short connector; 6. Clamp; 7. Sealing rubber; 8. Limiting groove; 9. Limiting bolt. Detailed Implementation

[0019] To make the purpose, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] Reference Figure 1 , Figure 2 and Figure 3 A combined aircraft refueling nozzle includes a refueling nozzle body 1, a refueling nozzle head 2 at the front end of the refueling nozzle body 1, an adapter 3 fixedly engaged at the bottom end of the refueling nozzle body 1, a filter 4 inside the adapter 3, a short connector 5 fixedly attached to the bottom end of the adapter 3, the bottom end of the short connector 5 being connected to the oil pipe, and the short connector 5 being fixedly connected to the oil pipe by a clamp 6, so that the refueling nozzle body 1 has the functions of self-sealing and filtration.

[0021] Specifically, the fuel nozzle 2 includes a round fuel inlet and a flat nozzle. The fuel nozzle 2 is fixed to the fuel nozzle body 1 by a threaded detachable method. The short connector 5 has a sealing rubber 7 fixed inside. The top surface of the sealing rubber 7 is in contact with the bottom end of the filter 4, allowing the operator to select the model of the fuel nozzle 2 according to the working environment.

[0022] As an optimization solution, such as Figure 1 , Figure 2 and Figure 3 As shown, a limiting groove 8 is provided on the outer side of the adapter 3, and threaded holes that mate with the limiting groove 8 are provided on one end of each side of the short connector 5 above the limiting groove 8, thereby improving the fixing effect of the adapter 3 and the short connector 5.

[0023] Specifically, the top surfaces of the short connector 5 are threadedly connected to the limiting bolts 9 through threaded holes on both sides. The limiting bolts 9 extend into the limiting groove 8, which improves the fixing effect of the adapter 3 and the short connector 5.

[0024] Working principle: The operator secures the adapter 3 to the bottom of the fuel nozzle body 1 using a retaining ring, and places the filter 4 inside the adapter 3. Simultaneously, the short connector 5 engages with the adapter 3, fixing the filter 4 inside the adapter 3. The sealing rubber 7 inside the short connector 5 enhances the stability of the filter 4 fixation and also provides a seal. Then, the limiting bolt 9 is passed through the fixing hole on the side of the short connector 5, creating a threaded connection between the limiting bolt 9 and the short connector 5. This secures the short connector 5 to the adapter 3. The oil pipe is then connected to the end of the short connector 5 furthest from the adapter 3, and the short connector 5 is secured to the oil pipe using a clamp 6. The fuel nozzle head 2 features a threaded, detachable design, allowing the operator to freely choose between a flat or round nozzle depending on the refueling environment.

[0025] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalent elements of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A combined aircraft refueling nozzle, comprising a refueling nozzle body (1), characterized in that: The front end of the fuel nozzle body (1) is provided with a fuel nozzle head (2), and the bottom end of the fuel nozzle body (1) is fixed with an adapter (3). The adapter (3) is provided with a filter (4) inside. The bottom end of the adapter (3) is fixed with a short connector (5). The bottom end of the short connector (5) is connected to the oil pipe. The short connector (5) and the oil pipe are fixedly connected by a clamp (6).

2. The combined aircraft refueling nozzle according to claim 1, characterized in that: The oil nozzle (2) includes a round oil filling port and a flat nozzle oil filling port. The oil nozzle (2) is fixed to the oil gun body (1) by means of a threaded detachable connection.

3. The combined aircraft refueling nozzle according to claim 1, characterized in that: The adapter (3) has a limiting groove (8) on its outer side, and the short connector (5) has a threaded hole that mates with the limiting groove (8) on one end of each side above it.

4. A combined aircraft refueling nozzle according to claim 3, characterized in that: The short connector (5) has threaded bolts (9) on both sides of its top surface through threaded holes, and the limiting bolts (9) extend into the limiting groove (8).

5. A combined aircraft refueling nozzle according to claim 1, characterized in that: The short connector (5) has a sealing rubber (7) fixed inside, and the top surface of the sealing rubber (7) is attached to the bottom end of the filter (4).

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