Airspeed pipe joint

Abstract

The utility model relates to an airspeed tube joint which is characterized by comprising a rubber sleeve and a pagoda nozzle, a cavity is arranged in the rubber sleeve, two ends of the rubber sleeve are communicated, the pagoda nozzle is arranged at one end of the rubber sleeve, the other end of the rubber sleeve is in interference fit with an airspeed tube, and the pagoda nozzle is connected with a hose. The device is easy to disassemble and assemble and can be easily installed through deformation of rubber during assembly, and negative pressure is formed on the binding face of the rubber and the atmosphere data measuring device to enable the connection to be stable; and during disassembly, the rubber needs to be pinched flat, air enters the interior from the two exhaust holes, then negative pressure can be eliminated, and the purpose of convenient disassembly is achieved.

Description

Technical Field

[0001] This utility model relates to the aviation field, and in particular to an airspeed tube connector. Background Technology

[0002] In aviation, aerospace, and industrial manufacturing, atmospheric data measurement devices are crucial for monitoring and recording environmental parameters. Their accuracy and reliability are paramount for flight safety and equipment performance. An atmospheric data measurement device consists of a total static pressure sensor, angle-of-attack / sideslip / total temperature sensors, and an atmospheric data computer. It measures various flight parameters such as pressure altitude, airspeed, Mach number, total temperature, angle of attack, and sideslip angle, and provides these parameters to cockpit displays, flight control, fire control, and navigation systems to meet the functional requirements of aircraft under various environmental conditions and to provide essential information for mission execution. Accurate atmospheric data plays a vital role in improving flight maneuverability, safety, and economy, making it an indispensable source of control information for aircraft.

[0003] However, during use, these devices are often affected by impurities such as dust, oil, and dirt, especially in narrow gaps, holes, and complex shapes. These impurities are difficult to remove effectively by conventional means, which seriously affects the accuracy of the measurement data.

[0004] Currently, there are some cleaning tools and methods on the market, but most of them have limitations. For example, some cleaning tools cannot provide enough high-pressure air input, resulting in unsatisfactory cleaning effects, especially in hard-to-reach areas; while other tools may damage the materials of atmospheric data measuring devices during use, or even generate spark risks, seriously threatening the safety and reliability of the equipment.

[0005] Furthermore, existing cleaning devices also have shortcomings in their structural design. Some devices cannot guarantee sufficient mechanical strength and sealing when connected to atmospheric data measurement devices, leading to leaks during the cleaning process and affecting the cleaning effect. At the same time, the disassembly and assembly process of some devices is cumbersome, requiring the use of specialized tools or equipment, which reduces the flexibility and convenience of use. Utility Model Content

[0006] The purpose of this invention is to provide an airspeed pipe connector to solve the problems of inconvenience and low efficiency in the existing technology.

[0007] This utility model is achieved by the following technical solution: a pneumatic tube connector, characterized in that it includes a rubber sleeve and a pagoda nozzle, the rubber sleeve has a cavity inside and is open at both ends, the pagoda nozzle is located at one end of the rubber sleeve, the other end of the rubber sleeve is interference-fitted with the pneumatic tube, and the pagoda nozzle is connected to a flexible tube.

[0008] Furthermore, the rubber sleeve includes a first connecting section, a conical section, and a second connecting section. The first connecting section and the second connecting section are cylindrical structures with different diameters and are respectively disposed at both ends of the conical section.

[0009] Furthermore, a limiting boss is provided on the inner wall of the connecting section, and the limiting boss cooperates with the groove at the corresponding position on the airspeed tube.

[0010] Furthermore, an embedded nut is provided inside the second connecting section, one end of the pagoda-shaped nozzle is threaded into the embedded nut, and the other end is sleeved with the hose.

[0011] Furthermore, the inner cavity cross-section of the rubber sleeve is elliptical, and the length of the minor axis of the ellipse is less than the diameter of the airspeed tube. When assembled with the airspeed tube, the inner cavity cross-section of the rubber sleeve deforms into a circle and fits against the outer wall of the airspeed tube with an interference fit.

[0012] Furthermore, the rubber sleeve is provided with an exhaust hole, which connects the inner and outer walls of the rubber sleeve.

[0013] The beneficial effects of the airspeed hose connector described in this utility model include:

[0014] 1. Reduced operation time: Because the device is quicker to install and disassemble than the previous equipment, the average time to maintain the atmospheric data measurement device of an aircraft has been reduced from 7 minutes and 3 seconds to 2 minutes and 28 seconds, saving 64.3% of time costs.

[0015] 2. It avoids the risk of damaging the aircraft itself during the disassembly and assembly of the original air data maintenance device due to its metal structure.

[0016] 3. Reduces labor intensity for personnel, as there is no need to disassemble nuts, clamps, or other structures; the rubber structure can simply be completely covered onto the outer shell of the atmospheric data measurement device. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Fig. 1 This is a cross-sectional view of an airspeed pipe connector;

[0019] Fig. 2 This is a side view of an airspeed tube connector;

[0020] Fig. 3 This is a schematic diagram showing the connection status between the pitot tube connector and the pitot tube.

[0021] In the diagram, 1-rubber sleeve, 2-pagoda nozzle, 3-hose hose, 4-air speed hose, 11-connecting section one, 12-conical section, 13-connecting section two, 14-embedded nut, 15-exhaust port. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] like Figs. 1-3 As shown, a pitot tube connector includes a rubber sleeve 1 and a pagoda-shaped nozzle 2. The rubber sleeve 1 has a compact internal structure, greatly reducing the risk of parts falling off. The rubber surface has a smooth transition, making it less prone to aging and wear during long-term use. A semi-transparent material is chosen, allowing external observation of whether the pitot tube connector is fully fitted during installation. The entire structure can deform when the pitot tube is inserted, allowing for a large deformation and making it easier to insert the pitot tube.

[0025] The rubber sleeve 1 includes a first connecting section 11, a conical section 12, and a second connecting section 13. The first connecting section 11 and the second connecting section 13 are cylindrical structures with different diameters and are respectively disposed at both ends of the conical section 12. The rubber sleeve 1 has a cavity inside and is open at both ends.

[0026] The inner wall of the first connecting section 11 is provided with a limiting boss, which cooperates with the corresponding groove on the airspeed tube 4. The second connecting section 13 is provided with an embedded nut 14, one end of the pagoda nozzle 2 is threaded into the embedded nut 14, and the other end is sleeved with the hose 3.

[0027] The inner cross-sections of the connecting section 11 and the tapered section 12 are elliptical, with the minor axis of the ellipse being less than the diameter of the airspeed tube 4. When assembled with the airspeed tube 4, the inner cross-section of the rubber sleeve 1 deforms into a circle and fits against the outer wall of the airspeed tube 4 with an interference fit. An exhaust port 15 is provided on the connecting section 11. During assembly, the deformation of the rubber sleeve 1 allows for easy installation, and the negative pressure formed at the contact surface between the rubber sleeve 1 and the airspeed tube 4 ensures a stable connection. During disassembly, the rubber sleeve 1 needs to be flattened; air enters through the exhaust port 15, eliminating the negative pressure and facilitating disassembly.

[0028] The above embodiments describe the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Modifications and variations made by those skilled in the art without departing from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A pneumatic tube connector, characterized in that, It includes a rubber sleeve (1) and a pagoda nozzle (2). The rubber sleeve (1) has a cavity inside and is open at both ends. The pagoda nozzle (2) is located at one end of the rubber sleeve (1). The other end of the rubber sleeve (1) is press-fitted with the airspeed tube (4). The pagoda nozzle (2) is connected to a flexible hose (3).

2. The airspeed hose connector according to claim 1, characterized in that, The rubber sleeve (1) includes a first connecting section (11), a conical section (12) and a second connecting section (13). The first connecting section (11) and the second connecting section (13) are cylindrical structures with different diameters and are respectively located at both ends of the conical section (12).

3. The airspeed hose connector according to claim 2, characterized in that, The inner wall of the connecting section (11) is provided with a limiting boss, which cooperates with the groove at the corresponding position on the airspeed tube (4).

4. The airspeed hose connector according to claim 2, characterized in that, An embedded nut (14) is provided inside the second connecting section (13). One end of the pagoda nozzle (2) is threadedly engaged with the embedded nut (14), and the other end is sleeved with the hose (3).

5. The airspeed hose connector according to claim 1, characterized in that, The inner cavity cross section of the rubber sleeve (1) is elliptical, and the length of the minor axis of the ellipse is less than the diameter of the airspeed tube (4). When assembled with the airspeed tube (4), the inner cavity cross section of the rubber sleeve (1) is deformed into a circle and fits the outer wall of the airspeed tube (4) with an interference fit.

6. The airspeed hose connector according to claim 1, characterized in that, The rubber sleeve (1) is provided with an exhaust hole (15), which connects the inner and outer walls of the rubber sleeve (1).

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