Hydraulic lock for aero seat

Abstract

The utility model relates to the technical field of hydraulic locks, and discloses an aero seat hydraulic lock which comprises a hydraulic lock body, a first hydraulic lock head and a second hydraulic lock head, one end face of the hydraulic lock body is fixedly provided with the first hydraulic lock head, and the top of the first hydraulic lock head is provided with a communication structure. The other end of the connecting mechanism is fixedly connected with a second hydraulic lock head, a piston rod is slidably connected into the hydraulic lock body, a connecting structure is arranged at one end of the piston rod, a piston structure is arranged at the other end of the piston rod, and a first sealing ring is fixedly installed on the connecting end face of the second hydraulic lock head and the piston rod. Locking is achieved through the incompressibility of hydraulic oil, stable and large locking force can be provided, the aero seat can be reliably fixed to the set position in the flying process of an aircraft no matter the conditions of airflow bumping, acceleration, deceleration, fuselage vibration and the like occur, and the seat is effectively prevented from moving accidentally.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic lock technology, specifically to a hydraulic lock for aircraft seats. Background Technology

[0002] In the aviation industry, passenger safety is of paramount importance. Aircraft seats need to ensure that passengers can remain stable in their seats under various operating conditions of the aircraft, including takeoff, landing, cruise, and when encountering turbulence. For example, during emergency braking or when encountering strong turbulence, the seat may be subjected to a large impact force. If the seat is not effectively secured, passengers may be injured. As a key component of aircraft seats, the hydraulic lock is used to lock the seat adjustment mechanism to prevent the seat from moving accidentally, thereby ensuring passenger safety.

[0003] With the continuous advancement of aviation technology and the increasing demands of passengers for comfort, the functions of aircraft seats have become increasingly diversified. In addition to basic seating functions, seats also have adjustable backrests, leg rests, armrests, and other components to meet the needs of different passengers. When these adjustable components are fixed in different positions, reliable locking devices are required. Hydraulic locks, due to their ability to provide greater locking force and stable locking performance, have become an important guarantee for realizing these functions. For example, when a passenger adjusts the seat back to a suitable angle, the hydraulic lock can firmly lock the backrest in that position, ensuring that the angle will not change due to vibration or other external forces during flight.

[0004] Before the application of hydraulic locks, aircraft seats may use mechanical locks or other simple locking methods. These traditional locking devices have some shortcomings. For example, mechanical locks may wear out after long-term use, resulting in a decrease in locking force and failure to effectively secure the seat. Moreover, mechanical locks may require a lot of force to operate, causing inconvenience to passengers or crew members. Therefore, we propose a hydraulic lock for aircraft seats. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a hydraulic lock for aircraft seats, which solves the aforementioned problems.

[0007] (II) Technical Solution

[0008] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a hydraulic lock for an aircraft seat, comprising a hydraulic lock body, a first hydraulic lock head, and a second hydraulic lock head. The first hydraulic lock head is fixedly installed on one end face of the hydraulic lock body, and a communicating structure is provided on the top of the first hydraulic lock head. The second hydraulic lock head is fixedly connected to the other end of the connecting mechanism. A piston rod is slidably connected inside the hydraulic lock body. A connecting structure is provided at one end of the piston rod, and a piston structure is provided at the other end of the piston rod. A sealing ring is fixedly installed on the connecting end face of the second hydraulic lock head and the piston rod.

[0009] Preferably, the first hydraulic lock head is arc-shaped corresponding to the other end connected to the hydraulic lock body. A through hole is provided on the side of the first hydraulic lock head, and a connecting bushing is fixedly installed in the through hole. A sealing ring is fixedly installed at the connection between the first hydraulic lock head and the hydraulic lock body. An oil outlet is provided on the top of the first hydraulic lock head, and the oil outlet communicates with the cavity of the hydraulic lock body.

[0010] Preferably, the connecting structure includes a first fixing plate, a connecting pipe, and a second fixing plate. The first fixing plate is fixedly installed on the top of the first hydraulic lock head. A through hole corresponding to the oil outlet is opened in the center of the first fixing plate. A connecting pipe is fixedly installed on the top of the through hole of the first fixing plate. The other end of the connecting pipe is fixedly connected to the top of the second fixing plate.

[0011] Preferably, the second hydraulic lock head is fixedly installed at the bottom of the fixed plate two, and a connecting block is fixedly connected to the second hydraulic lock head on the side corresponding to the first hydraulic lock head. An oil inlet is opened directly below the second hydraulic lock head corresponding to the connecting pipe. The oil inlet communicates with the cavity of the hydraulic lock body, and a control valve is provided in the oil inlet.

[0012] Preferably, the connection structure includes a connecting joint and a connecting hole. The side of the connecting joint is fixedly connected to the piston rod. The connecting joint is U-shaped, and a through connecting hole is provided on the side of the connecting joint. The other side of the connecting joint is arc-shaped.

[0013] Preferably, the piston structure includes a fixing groove, a rubber piston, a baffle, and fastening bolts. The other end of the piston rod is stepped, and a fixing groove is provided near the end face of the piston rod. A baffle is fixedly installed in the fixing groove. A rubber piston is provided on the side of the baffle. The other end of the rubber piston is fixedly connected to the stepped surface of the piston rod. The outer surface of the rubber piston is tightly fitted with the inner surface of the hydraulic lock body. The rubber piston and the baffle are fixedly connected by fastening bolts.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a hydraulic lock for aircraft seats, which has the following advantages:

[0016] 1. This aircraft seat hydraulic lock utilizes the incompressibility of hydraulic oil to achieve locking, providing a stable and large locking force. During aircraft flight, regardless of turbulence, acceleration, deceleration, or fuselage vibration, it can reliably fix the aircraft seat in the set position, effectively preventing the seat from moving unexpectedly.

[0017] 2. The hydraulic lock of this aircraft seat uses the pressure transmission of the hydraulic system to achieve unlocking and locking actions. The external force required for operation is relatively small. Whether it is the crew making the initial adjustment of the seat or the passenger making fine adjustments to the seat according to their own needs during the flight, the operation can be completed relatively easily, reducing the burden of use.

[0018] 3. The hydraulic lock for this aircraft seat is designed based on hydraulic principles, which makes it highly reliable in complex aviation environments. The hydraulic oil inside the lock plays a good role in buffering and stabilizing, reducing the impact of external shocks and vibrations on the locking mechanism, lowering the probability of failure. It has good sealing performance, which can effectively prevent hydraulic oil leakage and ensure long-term stable operation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a cross-sectional schematic diagram of the hydraulic lock body of this utility model;

[0021] Figure 3 This is a schematic diagram of the rubber piston of this utility model;

[0022] Figure 4 This is a schematic diagram of the connection connector of this utility model.

[0023] In the diagram: 1. Hydraulic lock body; 2. First hydraulic lock head; 3. Connecting bushing; 4. Fixing plate one; 5. Connecting pipe; 6. Connecting block; 7. Second hydraulic lock head; 8. Fixing plate two; 9. Sealing ring one; 10. Piston rod; 11. Connecting joint; 12. Connecting hole; 13. Fixing groove; 14. Rubber piston; 15. Baffle; 16. Fastening bolt; 17. Sealing ring two; 18. Oil inlet; 19. Oil outlet. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-4 A hydraulic lock for an aircraft seat includes a hydraulic lock body 1, a first hydraulic lock head 2, and a second hydraulic lock head 7. The first hydraulic lock head 2 is fixedly installed on one end face of the hydraulic lock body 1. The top of the first hydraulic lock head 2 is provided with a connecting structure. The other end of the connecting mechanism is fixedly connected to the second hydraulic lock head 7. A piston rod 10 is slidably connected inside the hydraulic lock body 1. One end of the piston rod 10 is provided with a connecting structure, and the other end of the piston rod 10 is provided with a piston structure. A sealing ring 9 is fixedly installed on the connecting end face of the second hydraulic lock head 7 and the piston rod 10.

[0026] Furthermore, the first hydraulic lock head 2 is arc-shaped corresponding to the other end connected to the hydraulic lock body 1. A through hole is provided on the side of the first hydraulic lock head 2, and a connecting bushing 3 is fixedly installed in the through hole. A sealing ring 17 is fixedly installed at the connection between the first hydraulic lock head 2 and the hydraulic lock body 1. An oil outlet 19 is provided on the top of the first hydraulic lock head 2, and the oil outlet 19 is connected to the cavity of the hydraulic lock body 1. When it is necessary to lock the aircraft seat, hydraulic oil flows out from the hydraulic lock body 1 through the oil outlet 19 of the first hydraulic lock head 2. The oil outlet 19 is connected to the cavity of the hydraulic lock body 1, and the hydraulic oil enters the second hydraulic lock head 7 under pressure through the connecting structure.

[0027] Furthermore, the connecting structure includes a first fixing plate 4, a connecting pipe 5, and a second fixing plate 8. The first fixing plate 4 is fixedly installed on the top of the first hydraulic lock head 2. A through hole corresponding to the oil outlet 19 is opened in the center of the first fixing plate 4. The connecting pipe 5 is fixedly installed on the top of the through hole of the first fixing plate 4, and the other end of the connecting pipe 5 is fixedly connected to the top of the second fixing plate 8.

[0028] Furthermore, the second hydraulic lock head 7 is fixedly installed at the bottom of the fixed plate 2 8. A connecting block 6 is fixedly connected to the second hydraulic lock head 7 on the side corresponding to the first hydraulic lock head 2. An oil inlet 18 is opened directly below the connecting pipe 5 of the second hydraulic lock head 7. The oil inlet 18 is connected to the cavity of the hydraulic lock body 1. A control valve is provided in the oil inlet 18. After the hydraulic oil enters the oil inlet 18 of the second hydraulic lock head 7, it pushes the piston rod 10 to move. One end of the piston rod 10 is connected to the seat adjustment mechanism, etc., through the connecting joint 11. When it is necessary to unlock the seat, the control valve in the oil inlet 18 of the second hydraulic lock head 7 is controlled to make the hydraulic oil flow back or change the pressure distribution of the hydraulic oil in the hydraulic lock body 1. After the hydraulic oil flows back or the pressure changes, the piston rod 10 moves in the opposite direction under the action of external forces such as the seat adjustment mechanism or its own gravity, and returns to the initial position or adjustable position, thereby realizing the unlocking of the seat adjustment mechanism and facilitating the adjustment operation of the seat.

[0029] Furthermore, the connection structure includes a connecting joint 11 and a connecting hole 12. The side of the connecting joint 11 is fixedly connected to the piston rod 10. The connecting joint 11 is U-shaped. The side of the connecting joint 11 has a through connecting hole 12, and the other side of the connecting joint 11 is arc-shaped. The connecting joint 11 is U-shaped and has a connecting hole 12 on its side for connection. Its other side is arc-shaped to facilitate cooperation with other components.

[0030] Furthermore, the piston structure includes a fixing groove 13, a rubber piston 14, a baffle 15, and a fastening bolt 16. The other end of the piston rod 10 is stepped, and a fixing groove 13 is provided near the end face of the piston rod 10. A baffle 15 is fixedly installed in the fixing groove 13. A rubber piston 14 is provided on the side of the baffle 15. The other end of the rubber piston 14 is fixedly connected to the stepped surface of the piston rod 10. The outer surface of the rubber piston 14 is tightly fitted with the inner surface of the hydraulic lock body 1. The rubber piston 14 and the baffle 15 are fixedly connected by the fastening bolt 16. The other end of the piston rod 10 is stepped and has a fixing groove 13 near the end face. The baffle 15 in the fixing groove 13 fixes the rubber piston 14. The outer surface of the rubber piston 14 is tightly fitted with the inner surface of the hydraulic lock body 1. The rubber piston 14 and the baffle 15 are fixed by the fastening bolt 16 to prevent hydraulic oil leakage.

[0031] Working principle: When the aircraft seat needs to be locked, hydraulic oil flows from the hydraulic lock body 1 through the oil outlet 19 of the first hydraulic lock head 2. The oil outlet 19 is connected to the cavity of the hydraulic lock body 1. Under pressure, the hydraulic oil enters the second hydraulic lock head 7 through the connecting structure. The connecting structure consists of a first fixing plate 4, a connecting pipe 5, and a second fixing plate 8. The first fixing plate 4 is fixed to the top of the first hydraulic lock head 2, and its central through hole corresponds to the oil outlet 19. The connecting pipe 5 connects the first fixing plate 4 and the second fixing plate 8, allowing the hydraulic oil to be smoothly transmitted to the second hydraulic lock head 7. Hydraulic lock head 7: After hydraulic oil enters the oil inlet 18 of the second hydraulic lock head 7, it pushes the piston rod 10 to move. One end of the piston rod 10 is connected to the seat adjustment mechanism, etc., through the connecting joint 11. The connecting joint 11 is U-shaped and has a connecting hole 12 on the side for connection. The other side is arc-shaped to facilitate cooperation with other components. Under the pressure of hydraulic oil, the piston rod 10 moves in a specific direction, fixing the seat adjustment mechanism in the corresponding position. The piston structure ensures the effective action of the hydraulic oil. The other end of the piston rod 10 is stepped and close to the end... A fixing groove 13 is provided at the surface, and a baffle 15 in the fixing groove 13 fixes the rubber piston 14. The outer surface of the rubber piston 14 fits tightly with the inner surface of the hydraulic lock body 1. The rubber piston 14 and the baffle 15 are fixed by fastening bolts 16 to prevent hydraulic oil leakage and ensure that the hydraulic oil pushes the piston rod 10 to achieve stable locking. At the same time, the sealing ring 17 at the connection between the first hydraulic lock head 2 and the hydraulic lock body 1 and the sealing ring 9 at the connection end face between the second hydraulic lock head 7 and the piston rod 10 also play a sealing role, ensuring the sealing and stability of the hydraulic system, making the locking force stable and reliable, and preventing the seat from moving accidentally under various operating conditions of the aircraft flight. When it is necessary to unlock the seat, the control valve in the oil inlet 18 of the second hydraulic lock head 7 is controlled to make the hydraulic oil flow back or change the pressure distribution of the hydraulic oil in the hydraulic lock body 1. After the hydraulic oil flows back or the pressure changes, the piston rod 10 moves in the opposite direction under the action of external forces such as the seat adjustment mechanism or its own weight, and returns to the initial position or adjustable position, thereby realizing the unlocking of the seat adjustment mechanism and facilitating the adjustment operation of the seat.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydraulic lock for an aircraft seat, comprising a hydraulic lock body (1), a first hydraulic lock head (2), and a second hydraulic lock head (7), characterized in that: A first hydraulic lock head (2) is fixedly installed on one end face of the hydraulic lock body (1). A connecting structure is provided on the top of the first hydraulic lock head (2). A second hydraulic lock head (7) is fixedly connected to the other end of the connecting structure. A piston rod (10) is slidably connected inside the hydraulic lock body (1). A connecting structure is provided at one end of the piston rod (10). A piston structure is provided at the other end of the piston rod (10). A sealing ring (9) is fixedly installed on the connecting end face of the second hydraulic lock head (7) and the piston rod (10).

2. The hydraulic lock for an aircraft seat according to claim 1, characterized in that: The first hydraulic lock head (2) is arc-shaped corresponding to the other end connected to the hydraulic lock body (1). A through hole is provided on the side of the first hydraulic lock head (2). A connecting bushing (3) is fixedly installed in the through hole. A sealing ring (17) is fixedly installed at the connection between the first hydraulic lock head (2) and the hydraulic lock body (1). An oil outlet (19) is provided at the top of the first hydraulic lock head (2). The oil outlet (19) is connected to the cavity of the hydraulic lock body (1).

3. The hydraulic lock for an aircraft seat according to claim 2, characterized in that: The connecting structure includes a first fixing plate (4), a connecting pipe (5), and a second fixing plate (8). The first fixing plate (4) is fixedly installed on the top of the first hydraulic lock head (2). A through hole corresponding to the oil outlet (19) is opened in the center of the first fixing plate (4). A connecting pipe (5) is fixedly installed on the top of the through hole of the first fixing plate (4). The other end of the connecting pipe (5) is fixedly connected to the top of the second fixing plate (8).

4. The hydraulic lock for an aircraft seat according to claim 1, characterized in that: The second hydraulic lock head (7) is fixedly installed at the bottom of the fixed plate (8). The second hydraulic lock head (7) is fixedly connected to the side of the first hydraulic lock head (2) with a connecting block (6). The second hydraulic lock head (7) is provided with an oil inlet (18) directly below the connecting pipe (5). The oil inlet (18) is connected to the cavity of the hydraulic lock body (1). A control valve is provided in the oil inlet (18).

5. A hydraulic lock for an aircraft seat according to claim 1, characterized in that: The connection structure includes a connecting joint (11) and a connecting hole (12). The side of the connecting joint (11) is fixedly connected to the piston rod (10). The connecting joint (11) is U-shaped. The side of the connecting joint (11) has a through connecting hole (12), and the other side of the connecting joint (11) is arc-shaped.

6. The hydraulic lock for an aircraft seat according to claim 1, characterized in that: The piston structure includes a fixing groove (13), a rubber piston (14), a baffle (15), and fastening bolts (16). The other end of the piston rod (10) is stepped, and a fixing groove (13) is provided near the end face of the piston rod (10). A baffle (15) is fixedly installed in the fixing groove (13). A rubber piston (14) is provided on the side of the baffle (15). The other end of the rubber piston (14) is fixedly connected to the stepped surface of the piston rod (10). The outer surface of the rubber piston (14) is tightly fitted with the inner surface of the hydraulic lock body (1). The rubber piston (14) and the baffle (15) are fixedly connected by fastening bolts (16).

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