Personal ventilation nozzle for use in aircraft low pressure ducting systems

Abstract

The utility model provides a kind of personal ventilation nozzle applied to aviation low-pressure pipeline system, it is related to aviation pipeline equipment technical field, the technical problem that ventilation nozzle is difficult to adjust air angle and air volume is solved;The personal ventilation nozzle includes nozzle, ball hinge, ball seat, wind baffle and gas collection box, gas collection box is used to be connected with low-pressure pipeline, the lower end of gas collection box is fixedly connected with ball seat, ball hinge is rotationally connected in ball seat;The upper portion of nozzle is located in ball hinge, ball hinge can drive nozzle to rotate in ball seat under external force, to adjust air angle;Wind baffle is rotationally connected in the inside of nozzle, nozzle is drivingly connected with wind baffle, when nozzle rotates around its own axis in ball hinge, wind baffle is in the position of adjustable inclination angle in nozzle, to adjust air volume;The personal ventilation nozzle has the function of air angle adjustment and air volume adjustment, overall structure is more compact, higher integration, meet the requirement of aviation equipment light weight, miniaturization.

Description

Technical Field

[0001] This utility model relates to the field of aviation pipeline equipment technology, and in particular to a personal ventilation nozzle for use in aviation low-pressure pipeline systems. Background Technology

[0002] To enhance passenger comfort, modern passenger aircraft and work aircraft are generally equipped with personal ventilation systems, allowing passengers to adjust the airflow directed at their faces using ventilation nozzles above their seats. These nozzles need to be lightweight, compact, flexible in airflow adjustment, and safe and reliable.

[0003] In the prior art, the air inlet of the ventilation nozzle is connected to the low-pressure pipeline of the aircraft, and the air outlet is directed toward the user to deliver airflow.

[0004] The applicant has discovered that the prior art has at least the following technical problems: the personal ventilation nozzles in the prior art are fixed on the top panel inside the cabin, making it difficult to adjust the air outlet angle and air volume, and inconvenient to use. Utility Model Content

[0005] The purpose of this utility model is to provide a personal ventilation nozzle for use in aviation low-pressure pipeline systems, so as to solve the technical problem that personal ventilation nozzles in the prior art are difficult to adjust the air outlet angle and air volume; the various technical effects of the preferred technical solutions provided by this utility model are described in detail below.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] The personal ventilation nozzle for use in aviation low-pressure piping systems provided by this utility model includes a nozzle, a ball joint, a ball seat, a wind deflector, and an air collection box, wherein:

[0008] The gas collection box is used to connect to the low-pressure pipeline. The lower end of the gas collection box is fixedly connected to the ball seat, and the ball hinge is rotatably connected inside the ball seat.

[0009] The upper part of the nozzle is located inside the ball joint, and the ball joint can drive the nozzle to rotate inside the ball seat under the action of external force, thereby adjusting the air outlet angle;

[0010] The wind deflector is rotatably connected to the inside of the nozzle, and the nozzle is throttle-connected to the wind deflector. When the nozzle rotates around its own axis within the ball joint, the wind deflector is positioned at an adjustable angle within the nozzle, thereby adjusting the airflow.

[0011] Preferably, the wind deflector includes a wind deflector body and a linkage rod, wherein:

[0012] The wind deflector body has shaft portions on opposite sides, and the wind deflector body is rotatably connected to the inner cavity of the nozzle through the shaft portions. The linkage rod is inclined relative to the axis of the nozzle and is connected to the wind deflector body.

[0013] When the nozzle rotates within the ball joint around its own axis, it can drive the connecting rod to move, thereby causing the wind deflector body to rotate within the nozzle around the shaft.

[0014] Preferably, the personal ventilation nozzle further includes a limiting fork, which is fixed to the nozzle and has a limiting groove, with the end of the connecting rod extending into the limiting groove.

[0015] Preferably, the nozzle has a first anti-slip texture structure on its bottom outer periphery.

[0016] Preferably, the inner peripheral wall of the ball seat is provided with an annular groove, and the arc-shaped peripheral wall of the ball hinge is confined within the annular groove.

[0017] Preferably, the ball seat includes a threaded section that extends into the air collection box and is threadedly connected to the air collection box.

[0018] Preferably, the ball seat further includes an outer convex ring, which is fixedly connected to the threaded section, and the outer diameter of the outer convex ring is larger than the outer diameter of the threaded section.

[0019] Preferably, the outer convex ring has a second anti-slip texture structure on its peripheral wall.

[0020] Preferably, the gas collection box comprises an integrally formed horizontal box section and a vertical box section, wherein:

[0021] One end of the horizontal box section is connected to the low-pressure pipeline, and the other end is fixedly connected to the upper end of the vertical box section. The lower end of the vertical box section is fixedly connected to the ball seat.

[0022] Preferably, the gas collection box further includes a mounting ring plate, which is fixed to the outer periphery of the bottom end of the vertical box section. The mounting ring plate is horizontally arranged and has mounting holes.

[0023] The personal ventilation nozzle for aviation low-pressure pipeline systems provided by this utility model has the following advantages compared with the prior art: the personal ventilation nozzle is connected to the low-pressure pipeline, and the air collection box guides and gathers the airflow in the low-pressure pipeline to the nozzle. The user can adjust the air outlet angle of the nozzle by swinging the ball joint, and rotate the nozzle along the axis of the nozzle to drive the wind deflector to rotate in the inner cavity of the nozzle, thereby changing the tilt angle of the wind deflector in the nozzle and adjusting the air volume. It is convenient to use; it has the functions of adjusting the air outlet angle and the air volume, and the overall structure is more compact and has a higher degree of integration, which meets the requirements of lightweight and miniaturization of aviation equipment. Attached Figure Description

[0024] 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. Obviously, 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 these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of a personal ventilation nozzle used in low-pressure pipeline systems in aviation.

[0026] Figure 2 This is a longitudinal sectional view of a personal ventilation nozzle;

[0027] Figure 3 This is an exploded view of a personal ventilation nozzle;

[0028] Figure 4 This is a schematic diagram of the mating structure of the ball seat, ball joint, and nozzle;

[0029] Figure 5 This is a schematic diagram of the assembly structure of the nozzle, the baffle, and the limiting fork.

[0030] Figure 6 This is a schematic diagram of the ball seat structure.

[0031] In the diagram: 1. Nozzle; 11. First anti-slip texture structure; 2. Ball joint; 3. Ball seat; 30. Annular groove; 31. Threaded section; 32. Outer convex ring; 33. Second anti-slip texture structure; 4. Wind deflector; 41. Wind deflector body; 42. Linkage rod; 5. Air collection box; 51. Horizontal box section; 52. Vertical box section; 53. Mounting ring plate; 54. Mounting hole; 6. Limiting fork; 61. Limiting groove; 7. Gasket; 8. Air inlet; 9. Air outlet. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0033] In the description of this utility model, it should be understood that the terms "center," "length," "width," "height," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and "side," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0034] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] This utility model embodiment provides a personal ventilation nozzle for use in aviation low-pressure pipeline systems, which facilitates adjustment of the air volume and air outlet angle.

[0036] The following is combined with Figures 1-6 The technical solution provided by this utility model will be described in more detail.

[0037] See Figures 1-6As shown, the personal ventilation nozzle 1 for use in aviation low-pressure pipeline systems provided by this utility model includes a nozzle 1, a ball joint 2, a ball seat 3, a wind deflector 4, and an air collection box 5. The air collection box 5 is used to connect to the low-pressure pipeline, and its lower end is fixedly connected to the ball seat 3. The ball joint 2 is rotatably connected within the ball seat 3. The upper part of the nozzle 1 is located within the ball joint 2, and the ball joint 2 can drive the nozzle 1 to rotate within the ball seat 3 under external force, thereby adjusting the air outlet angle. The wind deflector 4 is rotatably connected inside the nozzle 1, and the nozzle 1 and the wind deflector 4 are connected by a transmission mechanism. When the nozzle 1 rotates around its own axis within the ball joint 2, the tilt angle of the wind deflector 4 within the nozzle 1 is adjustable, thereby adjusting the airflow.

[0038] The present invention provides a personal ventilation nozzle 1 for use in aviation low-pressure pipeline systems. The personal ventilation nozzle 1 is connected to the low-pressure pipeline and is particularly suitable for application scenarios such as fire extinguishing machines that require a clean airflow environment for individuals.

[0039] The air collection box 5 guides and converges the airflow in the low-pressure pipeline to the nozzle 1. The user can adjust the air outlet angle of the nozzle 1 by swinging the ball joint 2 and rotating the nozzle 1 along its axis. This drives the baffle 4 to rotate in the inner cavity of the nozzle 1, thereby changing the tilt angle of the baffle 4 inside the nozzle 1 and adjusting the airflow. It is easy to use and has the functions of adjusting the air outlet angle and airflow. The overall structure is more compact and has a higher degree of integration, which meets the requirements of lightweight and miniaturization of aviation equipment.

[0040] As an optional implementation, see Figure 1 and Figure 2 As shown, Figure 2 The arrows indicate the direction of airflow. The overall structure of the air collection box 5 can be designed as an L-shape, including an integrally formed horizontal box section 51 and a vertical box section 52. One end of the horizontal box section 51 is connected to the low-pressure pipeline, and the other end is fixedly connected to the upper end of the vertical box section 52. The lower end of the vertical box section 52 is fixedly connected to the ball seat 3.

[0041] See Figure 1 and Figure 2 As shown, one end of the horizontal section is used to connect to the low-pressure air supply system inside the aircraft to receive air from the low-pressure air supply system. The inlet at this end serves as the air inlet 8. The vertical section serves as the base for connecting to subsequent components, and the lower outlet of the nozzle 1 serves as the air outlet 9. The structure of the air collection box 5 facilitates connection to the low-pressure pipeline (such as by clamp connection) and enables airflow reversal.

[0042] For easy and secure mounting of the entire device on the panel, see [link / reference]. Figure 1 and Figure 2As shown, the air collection box 5 also includes a mounting ring plate 53, which is fixed to the outer periphery of the bottom end of the vertical box section 52. The mounting ring plate 53 is horizontally positioned and has mounting holes 54. These mounting holes 54 allow it to be fixed to the mounting surface using fasteners such as screws and rivets, thereby ensuring the stability of the entire ventilation nozzle 1 installation.

[0043] Nozzle 1 is the component through which the user directly interacts and ultimately guides the airflow. Nozzle 1 can rotate around its axis within the ball joint 2. When the ball joint 2 rotates within the ball seat 3, nozzle 1 swings synchronously. To facilitate pushing, pulling, swinging, and rotating operations with the user's fingers, a first anti-slip texture structure 11 is provided on the outer periphery of the bottom of nozzle 1, which is the area most frequently touched by the user. The first anti-slip texture structure 11 can be annular raised stripes, a grid-like knurling, or a coating of soft rubber material, used to increase the static friction between the finger and nozzle 1, thereby facilitating precise operation by the user.

[0044] As an optional implementation, see Figures 2-4 As shown, the wind deflector 4 includes a wind deflector body 41 and a connecting rod 42. The wind deflector body 41 has shaft portions on opposite sides. The wind deflector body 41 is rotatably connected to the inner cavity of the nozzle 1 through the shaft portions. The connecting rod 42 is inclined relative to the axis of the nozzle 1 and is connected to the wind deflector body 41. When the nozzle 1 rotates around its own axis in the ball joint 2, it can drive the connecting rod 42 to move, thereby causing the wind deflector body 41 to rotate around the shaft portion in the nozzle 1.

[0045] The shape of the baffle plate body 41 can be circular, elliptical, or rectangular, and its size matches the cross-section of the air passage inside the nozzle 1. Shaft portions are provided on both sides of the baffle plate body 41, with elbows respectively installed in shaft holes on the peripheral wall of the nozzle 1. The nozzle 1 can rotate around its axis within the ball joint 2. When the nozzle 1 rotates around its own axis, it drives the baffle plate body 41 to rotate around the shaft portion, thus changing the tilt angle of the baffle plate body within the nozzle 1. In other words, it changes the shielding area of ​​the baffle plate body within the inner cavity of the nozzle 1, thereby adjusting the airflow.

[0046] For details, see Figure 5 As shown, the personal ventilation nozzle 1 also includes a limiting fork 6, which is fixed to the nozzle 1 (by welding or threaded connection, etc.). The limiting fork 6 is provided with a limiting groove 61, and the end of the connecting rod 42 extends into the limiting groove 61.

[0047] When the nozzle 1 rotates around its own axis, the limiting fork 6 rotates together with the nozzle 1. The limiting fork 6 drives the connecting rod 42 to move through the limiting groove 61, applying a tangential force to the connecting rod 42 in the groove, thereby driving the wind deflector body 41 connected to it to deflect around its axis.

[0048] As an optional implementation, see Figure 2 , Figure 4 and Figure 6 An annular groove 30 is provided on the inner peripheral wall of the ball seat 3, and the arc-shaped peripheral wall of the ball hinge 2 is limited to the annular groove 30.

[0049] The size and curvature of the annular groove 30 are precisely designed to accommodate and constrain the movement of the ball joint 2.

[0050] As an optional implementation, see Figure 2 , Figure 4 and Figure 6 The ball seat 3 includes a threaded section 31, which extends into the air collection box 5 and is threadedly connected to the air collection box 5.

[0051] The ball seat 3 has a hollow ring or cup-shaped structure, with a threaded section 31 at its upper end, which can be screwed onto the internal thread at the lower end of the vertical section of the air collection box 5 to form a reliable threaded connection. This connection method is not only easy to assemble, but also facilitates subsequent maintenance and replacement.

[0052] As an optional implementation, see Figure 4 and Figure 6 As shown, the ball seat 3 also includes an outer convex ring 32, which is fixedly connected to the threaded section 31. The outer diameter of the outer convex ring 32 is larger than the outer diameter of the threaded section 31.

[0053] When it is necessary to disassemble or install the ball seat 3 and the air collection box 5, hold the outer protruding ring 32 to make it easy to rotate the ball seat 3 and facilitate the disassembly and assembly of the ball seat 3 and the air collection box 5.

[0054] As an optional implementation, see Figure 4 and Figure 6 As shown, a second anti-slip texture structure 33 is provided on the peripheral wall of the outer convex ring 32.

[0055] To apply torque during installation and removal, a second anti-slip texture structure 33 is provided on the peripheral wall of the outer convex ring 32. The second anti-slip texture structure 33 can be knurled or radial ribs to increase friction.

[0056] A gasket 7 can be installed between the outer protruding ring 32 of the ball seat 3 and the air collection box 5, such as... Figure 3 As shown, this ensures the stability and sealing performance of the connection structure.

[0057] Regarding the adjustment of the air outlet angle, when the user wishes to change the direction of the airflow blowing towards the face, they can directly hold or touch the lower part of the nozzle 1 (i.e., the area with the first anti-slip texture) with their fingers and apply a pushing, pulling, or swinging force to any side. Since the nozzle 1 is universally connected to the ball seat 3 through the ball joint 2, the external force will directly cause the ball joint 2 to rotate smoothly in the annular groove 30 of the ball seat 3, thereby driving the outlet of the nozzle 1 to face the direction desired by the user, thus achieving angle adjustment.

[0058] Regarding the adjustment of airflow, the operation also applies to nozzle 1, but the method of operation is different. The user needs to hold nozzle 1 and rotate it around the central axis of nozzle 1. This rotational movement, through the cooperation structure of the limiting fork 6 and the connecting rod 42, drives the baffle body to rotate in the inner cavity of nozzle 1, thereby adjusting the airflow.

[0059] The specific features, structures, or characteristics described in this specification may be combined in any suitable manner in one or more embodiments or examples.

[0060] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0061] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A personal ventilation nozzle for use in aviation low-pressure piping systems, characterized in that, Includes nozzle, ball joint, ball seat, wind deflector, and air collection box, wherein: The gas collection box is used to connect to the low-pressure pipeline. The lower end of the gas collection box is fixedly connected to the ball seat, and the ball hinge is rotatably connected inside the ball seat. The upper part of the nozzle is located inside the ball joint, and the ball joint can drive the nozzle to rotate inside the ball seat under the action of external force, thereby adjusting the air outlet angle; The wind deflector is rotatably connected to the inside of the nozzle, and the nozzle is throttle-connected to the wind deflector. When the nozzle rotates around its own axis within the ball joint, the wind deflector is positioned at an adjustable angle within the nozzle, thereby adjusting the airflow.

2. The personal ventilation nozzle for use in aviation low-pressure piping systems according to claim 1, characterized in that, The wind deflector includes a wind deflector body and a linkage rod, wherein: The wind deflector body has shaft portions on opposite sides, and the wind deflector body is rotatably connected to the inner cavity of the nozzle through the shaft portions. The linkage rod is inclined relative to the axis of the nozzle and is connected to the wind deflector body. When the nozzle rotates within the ball joint around its own axis, it can drive the connecting rod to move, thereby causing the wind deflector body to rotate within the nozzle around the shaft.

3. The personal ventilation nozzle for use in aviation low-pressure piping systems according to claim 2, characterized in that, The personal ventilation nozzle also includes a limiting fork, which is fixed to the nozzle and has a limiting groove. The end of the connecting rod extends into the limiting groove.

4. The personal ventilation nozzle for use in aviation low-pressure piping systems according to claim 1, characterized in that, The nozzle has a first anti-slip texture structure on its bottom outer periphery.

5. The personal ventilation nozzle for use in aviation low-pressure piping systems according to claim 1, characterized in that, The ball seat has an annular groove on its inner peripheral wall, and the arc-shaped peripheral wall of the ball hinge is confined within the annular groove.

6. The personal ventilation nozzle for use in aviation low-pressure piping systems according to claim 1, characterized in that, The ball seat includes a threaded section that extends into the gas collection box and is threadedly connected to the gas collection box.

7. The personal ventilation nozzle for use in aviation low-pressure piping systems according to claim 6, characterized in that, The ball seat also includes an outer convex ring, which is fixedly connected to the threaded section, and the outer diameter of the outer convex ring is larger than the outer diameter of the threaded section.

8. The personal ventilation nozzle for use in aviation low-pressure piping systems according to claim 7, characterized in that, The outer convex ring has a second anti-slip texture structure on its peripheral wall.

9. The personal ventilation nozzle for use in aviation low-pressure piping systems according to claim 1, characterized in that, The gas collection box includes an integrally formed horizontal box section and a vertical box section, wherein: One end of the horizontal box section is connected to the low-pressure pipeline, and the other end is fixedly connected to the upper end of the vertical box section. The lower end of the vertical box section is fixedly connected to the ball seat.

10. The personal ventilation nozzle for use in aviation low-pressure piping systems according to claim 9, characterized in that, The gas collection box also includes a mounting ring plate, which is fixed to the outer periphery of the bottom end of the vertical box section. The mounting ring plate is horizontally arranged and has mounting holes.

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