An aviation seat angle adjuster

Abstract

The present invention relates to an aviation seat angle adjuster, comprising an outer cylinder, a front joint, a gas spring assembly and a rear joint, wherein the gas spring assembly comprises an inner cylinder arranged inside the outer cylinder, a secondary piston is slidably arranged between the outer cylinder and the inner cylinder, a first air chamber is formed between the inner cylinder and the front joint, a main piston and an isolation piston are arranged inside the inner cylinder, the main piston and the isolation piston divide the inner cylinder into a first oil chamber, a second oil chamber and a second air chamber, a piston rod is arranged at the center of the inner cylinder, the piston rod extends into the first oil chamber and is matched with the main piston, the main piston and the inner wall of the inner cylinder are slidably matched, a push rod is arranged inside the piston rod, one end of the push rod extends into the front joint and is provided with a control switch, and the other end of the push rod passes through the main piston and is provided with a valve core for opening and closing the second oil chamber. The present invention has a simple structure, is easy to use, can adjust the angle of the aviation seat at will, brings passengers a better flight experience, and improves the safety and comfort of the aviation seat.

Description

Technical Field

[0001] The invention relates to the technical field of aviation equipment, in particular to an aviation seat angle adjuster. Background Art

[0002] The recliner is a device used to adjust the angle of the seat back, which is widely used in the fields of automobiles, medical fitness equipment, building doors and windows, and aviation.

[0003] At present, most of the adjustment devices on airline seats use mechanical recliners, but mechanical recliners have the disadvantage of poor stability, which often brings uncomfortable flying experience to passengers. Summary of the invention

[0004] The technical problem to be solved by the present invention is to improve the stability of an adjustment device on an aviation seat.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an aviation seat recliner provided by the present invention comprises an outer cylinder, a front joint connected to the outer cylinder, a gas spring assembly and a rear joint, the gas spring assembly comprises an inner cylinder arranged inside the outer cylinder, a secondary piston is slidably arranged between the outer cylinder and the inner cylinder, a first air cavity is formed between one end of the inner cylinder and the front joint, the other end of the inner cylinder is connected to the rear joint, a main piston and an isolating piston are arranged inside the inner cylinder, and the main piston and the isolating piston divide the inside of the inner cylinder into a first oil cavity and a second oil cavity. The oil chamber and the second air chamber, the main piston and the inner cylinder, and the isolating piston and the inner cylinder are all provided with seals. A piston rod is provided at the center of the inner cylinder. One end of the piston rod is connected to the front joint, and the other end of the piston rod extends into the first oil chamber and is connected with the main piston. The main piston slides with the inner wall of the inner cylinder. A push rod is provided inside the piston rod. One end of the push rod extends into the front joint and is provided with a control switch. The other end of the push rod passes through the main piston and is provided with a valve core for opening and closing the second oil chamber. A guide sleeve is provided between the piston rod and the inner cylinder.

[0006] When the control switch touches the push rod, the push rod opens the valve core, and the second oil chamber is in the open state. The oil in the second oil chamber flows to the first oil chamber and fills the first oil chamber. Then the guide sleeve drives the inner cylinder to move toward the first air chamber, and the isolation piston also moves toward the first air chamber. The volume of the second air chamber increases, and the energy stored in the gas is released, thereby pushing the isolation piston to move. The outer cylinder moves in the opposite direction relative to the inner cylinder, and the inner cylinder enters the outer cylinder. At this time, the angle of the aviation seat can be adjusted inward.

[0007] When the valve core is closed, the compressed gas in the first air chamber will generate a rebound force, forcing the inner cylinder to drive the guide sleeve to move away from the first air chamber, and the oil in the first oil chamber flows back to the second oil chamber, so that the isolation piston compresses the gas in the second air chamber. The gas is compressed and stores energy; the outer cylinder moves in the opposite direction relative to the inner cylinder, and the inner cylinder extends out of the outer cylinder. At this time, the angle of the aviation seat can be adjusted outward.

[0008] Furthermore, a contact ring is arranged between the guide sleeve and the main piston, and the contact ring is connected to the guide sleeve through a guide seal, and a first oil chamber is formed between the guide seal, the contact ring and the main piston. When the piston rod slides along the axial direction of the inner cylinder, it is guided by the dual functions of the guide sleeve and the guide seal, and the guide seal plays a good sealing role to prevent oil from leaking to the outside, and the contact ring limits the extreme position of the movement of the main piston.

[0009] Furthermore, in order to improve the sealing effect, annular grooves are provided on the main piston and the piston rod, and a sealing ring is provided in the annular groove to abut against the push rod. The main piston is also provided with an oil inlet channel, which facilitates the oil in the second oil chamber to flow into the first oil chamber.

[0010] Beneficial effects of the present invention: The aviation seat angle adjuster provided by the present invention has a simple structure, is easy to use, and is stable in fixation. It can adjust the angle of the aviation seat at will, thereby bringing passengers a better flight experience while improving the safety and comfort of the aviation seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0012] Figure 1 It is a schematic diagram of the structure of the present invention;

[0013] Figure 2 yes Figure 1 The enlarged schematic diagram of point A in the middle;

[0014] Figure 3 yes Figure 1 The enlarged schematic diagram of point B in the middle;

[0015] In the figure: 1-front joint, 2-rear joint, 3-outer cylinder, 31-first air chamber, 4-inner cylinder, 41-first oil chamber, 42-second oil chamber, 43-second air chamber, 5-main piston, 51-sealing ring, 52-oil inlet channel, 53-annular groove, 6-contact ring, 7-guide seal, 8-top rod, 9-piston rod, 10-guide sleeve, 11-control switch, 12-auxiliary piston, 13-isolating piston, 14-seal, 15-valve core. DETAILED DESCRIPTION

[0016] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0017] like Figure 1 As shown, an aviation seat recliner provided by the present invention comprises an outer cylinder 3, a front joint 1 connected to the outer cylinder 3, a gas spring assembly and a rear joint 2, the gas spring assembly comprises an inner cylinder 4 arranged inside the outer cylinder 3, a secondary piston 12 is slidably arranged between the outer cylinder 3 and the inner cylinder 4, a first air chamber 31 is formed between one end of the inner cylinder 4 and the front joint 1, the other end of the inner cylinder 3 is connected to the rear joint 2, a main piston 5 and an isolating piston 13 are arranged inside the inner cylinder 3, the main piston 5 and the isolating piston 13 divide the inside of the inner cylinder 4 into a first oil chamber 41, a second oil chamber 42 and a second air chamber 43, the main piston 5 and the isolating piston 13 divide the inside of the inner cylinder 4 into a first oil chamber 41, a second oil chamber 42 and a second air chamber 43, Seals 14 are provided between the plug 5 and the inner cylinder 4, and between the isolating piston 13 and the inner cylinder 4. A piston rod 9 is provided at the center of the inner cylinder 4. One end of the piston rod 9 is connected to the front joint 1, and the other end of the piston rod 9 extends into the first oil chamber 41 and is connected with the main piston 5. The main piston 5 slides with the inner wall of the inner cylinder 4. A push rod 8 is provided inside the piston rod 9. One end of the push rod 8 extends into the front joint 1 and is provided with a control switch 11. The other end of the push rod 8 passes through the main piston 5 and is provided with a valve core 15 for opening and closing the second oil chamber 42. A guide sleeve 10 is provided between the piston rod 9 and the inner cylinder 4.

[0018] When the control switch 11 touches the push rod 8, the push rod 8 opens the valve core 15, and the second oil chamber 42 is in the open state. The oil in the second oil chamber 42 flows to the first oil chamber 41 and fills the first oil chamber 41. Then the guide sleeve 10 drives the inner cylinder 4 to move toward the first air chamber 31, and the isolation piston 13 also moves toward the first air chamber 31. Nitrogen is stored in the second air chamber 43 and its volume increases. The energy stored in the nitrogen is released, thereby pushing the isolation piston 13 to move; then the outer cylinder 3 moves in the opposite direction relative to the inner cylinder 4, and the inner cylinder 4 enters the outer cylinder 3. At this time, the angle of the aviation seat can be adjusted inward;

[0019] When the valve core 15 is closed, the compressed gas in the first air chamber 31 will generate a rebound force, forcing the inner cylinder 4 to drive the guide sleeve 10 to move away from the first air chamber 31, and the oil in the first oil chamber 41 flows back to the second oil chamber 42, so that the isolation piston 13 compresses the nitrogen in the second air chamber 43, and the nitrogen is compressed to store energy; the outer cylinder 3 moves in the opposite direction relative to the inner cylinder 4, and the inner cylinder 4 extends out of the outer cylinder 3. At this time, the angle of the aviation seat can be adjusted outward.

[0020] like Figure 1As shown, a contact ring 6 is arranged between the guide sleeve 10 and the main piston 5, and the contact ring 6 is connected to the guide sleeve 10 through a guide seal 7, and a first oil chamber 41 is formed between the guide seal 7, the contact ring 6 and the main piston 5. When the piston rod 9 slides axially along the inner cylinder 4, it is guided by the dual functions of the guide sleeve 10 and the guide seal 7, and the guide seal 7 plays a good sealing role to prevent oil from leaking to the outside, and the contact ring 6 limits the extreme position of the movement of the main piston 5.

[0021] like Figure 2 and Figure 3 As shown, in order to improve the sealing effect, an annular groove 53 is provided on the main piston 5 and the piston rod 9, and a sealing ring 51 is provided in the annular groove 53 to abut against the push rod 8. The main piston 5 is also provided with an oil inlet channel 52, which facilitates the oil in the second oil chamber 42 to flow into the first oil chamber 41.

[0022] The invention provides an aviation seat angle adjuster, which has a simple structure, is easy to use, and is stable in fixation. It can adjust the angle of the aviation seat at will, thereby providing passengers with a better flight experience and improving the safety and comfort of the aviation seat.

[0023] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An aviation seat recliner, characterized in that: The invention comprises an outer cylinder (3), a front joint (1) connected to the outer cylinder (3), a gas spring assembly and a rear joint (2), wherein the gas spring assembly comprises an inner cylinder (4) arranged inside the outer cylinder (3), a secondary piston (12) is slidably arranged between the outer cylinder (3) and the inner cylinder (4), a first air chamber (31) is formed between one end of the inner cylinder (4) and the front joint (1), the other end of the inner cylinder (4) is connected to the rear joint (2), a main piston (5) and an isolating piston (13) are arranged inside the inner cylinder (4), the main piston (5) and the isolating piston (13) divide the inside of the inner cylinder (4) into a first oil chamber (41), a second oil chamber (42) and a second air chamber (43), the main piston (5) and the inner cylinder (4) are connected to each other, and the isolating piston (13) and the rear joint (2) are connected to each other. A sealing member (14) is provided between the isolation piston (13) and the inner cylinder (4); a piston rod (9) is provided at the center of the inner cylinder (4); one end of the piston rod (9) is connected to the front joint (1); the other end of the piston rod (9) extends into the first oil chamber (41) and is matched with the main piston (5); the main piston (5) is slidably matched with the inner wall of the inner cylinder (4); a push rod (8) is provided inside the piston rod (9); one end of the push rod (8) extends into the front joint (1) and is provided with a control switch (11); the other end of the push rod (8) passes through the main piston (5) and is provided with a valve core (15) for opening and closing the second oil chamber (42); a guide sleeve (10) is provided between the piston rod (9) and the inner cylinder (4).

2. The aircraft seat recliner according to claim 1, characterized in that: A contact ring (6) is provided between the guide sleeve (10) and the main piston (5); the contact ring (6) and the guide sleeve (10) are connected via a guide seal (7); and the first oil chamber (41) is formed between the guide seal (7), the contact ring (6) and the main piston (5).

3. The aircraft seat recliner according to claim 1, characterized in that: The main piston (5) and the piston rod (9) are both provided with an annular groove (53), a sealing ring (51) abutting against the push rod (8) is arranged in the annular groove (53), and an oil inlet channel (52) is also provided on the main piston (5).

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