Manual starting mechanism for lifeboat of helicopter

Abstract

The utility model belongs to the technical field of helicopter lifesaving, and particularly relates to a manual starting mechanism of a helicopter lifeboat, which comprises a handle assembly, a steel wire rope assembly, a spherical joint adapter and a pulley assembly, the handle assembly is arranged on the structural frame close to one side of a pilot, the pulley assembly is arranged on the structural frame close to the gas cylinder end of the lifeboat, and the spherical joint adapter is arranged close to the pulley assembly; one end of the steel wire rope assembly is connected with the handle assembly; and a steel wire rope on the lifeboat gas cylinder is connected with the spherical joint adapter after bypassing the pulley assembly.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of helicopter life-saving, especially relates to a manual starting mechanism of helicopter life-saving boat. BACKGROUND

[0002] The helicopter life-saving boat is used when the helicopter performs the water flight task, provides the water floating platform for the personnel on the helicopter after the helicopter water emergency landing, and waits for the rescue.

[0003] The float of the life-saving boat is usually foldable, is made of light material, and is stored in the helicopter cargo compartment or the external special cabin when not inflated.

[0004] When the gas cylinder in the life-saving boat is activated, the folded float of the life-saving boat is inflated by the high-pressure gas in the gas cylinder, forms the shape similar to the "boat", and can float on the sea surface.

[0005] For the life-saving boat installed in the external special cabin of the helicopter and manually operated by the pilot in the cockpit, the pilot's starting handle is far away from the float assembly of the life-saving boat due to the installation position of the life-saving boat on the helicopter, and the use is inconvenient. INVENTION CONTENTS

[0006] The utility model discloses a kind of manual starting mechanisms of helicopter life-saving boat, and the technical foundation is laid for quickly popularizing use on multiple helicopters, and can be extended to other similar scenes needing mechanical activation.

[0007] Technical scheme

[0008] A kind of manual starting mechanism of helicopter life-saving boat, comprising: handle assembly, steel wire rope assembly, spherical joint adapter, pulley assembly;

[0009] Handle assembly is set on the structure frame close to pilot side, pulley assembly is set on the structure frame close to life-saving boat gas cylinder end, and spherical joint adapter is set close to pulley assembly;

[0010] Steel wire rope assembly one end is connected with handle assembly, and the other end is connected with spherical joint adapter;The steel wire rope on life-saving boat gas cylinder is connected with spherical joint adapter after passing pulley assembly.

[0011] Further, handle assembly includes handle, connecting rod, starting rod, first support, second support, clamp, mounting plate;

[0012] One end of handle is annular structure, the other end is double ear joint and is connected with connecting rod by bolt;

[0013] One end of connecting rod is connected with handle, and the other end is connected with the double ear structure of starting rod by bolt;

[0014] The starting rod has a double-ear structure at one end, a through hole at the other end, and a semispherical groove in the middle. The bottom of the groove is a through hole, which is used to connect the steel wire rope assembly.

[0015] The first support has a double-ear structure, and the double ears are provided with through holes. The second support also has a double-ear structure, and the double ears are provided with fuse holes. The two supports are riveted to the mounting plate seat.

[0016] The starting rod is arranged in the middle of the double-ear structures of the two supports.

[0017] The clamp is riveted and fixed to the mounting plate through the bottom.

[0018] The mounting plate is fixed to the machine body structure frame through bolts.

[0019] Further, the steel wire rope assembly includes a steel wire rope, a first ball joint, a second ball joint, a wear-resistant sleeve, and two wear-resistant sleeve mounting assemblies.

[0020] The wear-resistant sleeve mounting assembly is mounted on the machine body structure frame, and the wear-resistant sleeve is mounted between the two wear-resistant sleeve mounting assemblies.

[0021] The steel wire rope is arranged in the wear-resistant sleeve, and the two ends of the steel wire rope pass through the two wear-resistant sleeve mounting assemblies respectively and are crimped with the first ball joint and the second ball joint respectively.

[0022] Further, the wear-resistant sleeve mounting assembly includes a wear-resistant sleeve stopper and a wear-resistant sleeve stopper mounting support.

[0023] Two nuts of the wear-resistant sleeve stopper are mounted on the wear-resistant sleeve stopper mounting support. By adjusting the positions of the two nuts on the wear-resistant sleeve stopper, the tightness of the steel wire rope can be adjusted.

[0024] The wear-resistant sleeve stopper mounting support is riveted to the machine body structure frame.

[0025] Further, the ball joint connector includes a first pressing sliding cover, a second pressing sliding cover, a shell, and a spring.

[0026] The shell is provided with a groove for connecting the ball joint at the end of the steel wire rope. After the first pressing sliding cover, the spring, and the second pressing sliding cover are sequentially mounted on the shell, the ends of the shell are flared, so that the pressing sliding cover, the spring, and the pressing sliding cover will not pop out after the spring is compressed.

[0027] By pressing the two pressing slides, the spring is contracted, and the ball joint at the end of the steel wire rope assembly is connected to the ball joint of the steel wire rope at the end of the lifeboat gas cylinder in the shell or taken out from the shell, so as to realize the connection or disconnection of the steel wire rope assembly on the machine with the steel wire rope at the end of the lifeboat gas cylinder.

[0028] Further, the pulley assembly includes a pulley, a pulley support, a sleeve, and a quick-release spring pin.

[0029] The pulley support is riveted on the machine body structure frame, the pulley is installed on the pulley support, the steel wire rope is wound on the pulley, the pulley can rotate around the bolt, the two sleeves limit the left and right movement of the pulley, and the quick-release spring pin avoids the steel wire rope from sliding out of the pulley groove when the pulley rotates;

[0030] In summary, the beneficial effects of the utility model are as follows:

[0031] The application is a machine on-board component of a ship-borne helicopter externally-hung lifeboat, which realizes the requirement of quickly pulling the handle, starting the lifeboat and escaping on water after the helicopter makes an emergency forced landing and enters water. The lifeboat can meet the design requirements of similar improved and modified helicopter lifeboats in manual starting on the machine, and can be popularized to other similar scenes requiring mechanical starting, and has strong universality and practicality. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is a schematic diagram of the manual starting mechanism of the lifeboat;

[0033] Figure 2 It is a schematic diagram of the handle assembly 10;

[0034] Figure 3 It is a schematic diagram of the steel wire rope assembly 20;

[0035] Figure 4 It is a schematic diagram of the spherical joint adapter 30;

[0036] Figure 5 It is a schematic diagram of the pulley assembly 40. DETAILED DESCRIPTION

[0037] A helicopter lifeboat manual starting mechanism, comprising a handle assembly 10, a steel wire rope assembly 20, a spherical joint adapter 30, and a pulley assembly 40, as shown in the figure. Figure 1

[0038] The handle assembly 10 comprises a handle 101, a connecting rod 102, a starting rod 103, a bracket 104, a bracket 105, a clamp 106, a mounting plate 107, and a bolt 108, as shown in the figure. Figure 2

[0039] One end of the handle 101 is annular, and the other end is a double-ear joint, which is connected to the connecting rod 102 through a bolt.

[0040] One end of the connecting rod 102 is connected to the handle 101, and the other end is connected to the double-ear structure of the starting rod 103 through a bolt.

[0041] One end of the starting rod 103 is a double-ear structure, the other end is a through hole, the middle is a hemispherical groove, the bottom of the groove is a through hole, and is used for connecting the spherical joint 202 at one end of the steel wire rope assembly 20.​​

[0042] The bracket 104 is designed as a double-ear structure, and a through hole is arranged on the double ears.

[0043] The bracket 105 is designed as a double-ear structure, and a fuse hole is arranged on the double ears.

[0044] The starting rod 103 is arranged in the middle of the double-ear structures of the bracket 104 and the bracket 105, and one end is connected to the double ears of the bracket 104 through a bolt.

[0045] The starting rod 103 is also provided with a fuse hole at the fuse hole of the double ears of the bracket 105, which can be used for fusing.

[0046] The bracket 104 and the bracket 105 are respectively fixed on the mounting plate 107 through the riveting of their bases.

[0047] The clamp 106 is fixed on the mounting plate 107 through the riveting of its bottom.

[0048] The mounting plate 107 is fixed on the machine body structure frame 1 through the bolt 108.

[0049] Specifically, the handle 101, the connecting rod 102 and the starting rod 103 are stacked together and effectively constrained at the mounting plate 107 through the clamp 106.

[0050] The steel wire rope assembly 20 comprises a steel wire rope 201, a spherical joint 202, an anti-abrasion sleeve stopper 203, an anti-abrasion sleeve 204, a nut 205, a nut 206, an anti-abrasion sleeve stopper 207, a spherical joint 208, an anti-abrasion sleeve stopper mounting bracket 209, an anti-abrasion sleeve stopper mounting bracket 210, as shown in Figure 3 .

[0051] One end of the steel wire rope 201 is crimped with the spherical joint 202, and the other end is gradually threaded through the anti-abrasion sleeve stopper 203, the anti-abrasion sleeve 204 and the anti-abrasion sleeve stopper 207, and finally crimped with the spherical joint 208. According to needs, a rubber sleeve can be molded outside the anti-abrasion sleeve 204.

[0052] The anti-abrasion sleeve stopper 203 is mounted on the anti-abrasion sleeve stopper mounting bracket 209 through two nuts 205.

[0053] The anti-abrasion sleeve stopper 207 is mounted on the anti-abrasion sleeve stopper mounting bracket 210 through two nuts 206.

[0054] The tightness of the steel wire rope can be adjusted by adjusting the positions of the nuts 205 and 206 on the anti-abrasion sleeve stoppers 203 and 207.

[0055] The anti-abrasion sleeve stopper mounting bracket 209 and the anti-abrasion sleeve stopper mounting bracket 210 are riveted on the body structure frame 1 and the body structure frame 2 respectively.

[0056] The spherical joint adapter 30 comprises a pressing sliding cover 301, a pressing sliding cover 302, a shell 303, and a spring 304, as shown in Figure 4 .

[0057] The shell 303 is provided with a groove for connecting the spherical joint at the end of the steel wire rope, and after the pressing sliding cover 301, the spring 304, and the pressing sliding cover 302 are sequentially installed on the shell 303, the two ends of the shell 303 are flared, so that the pressing sliding cover 301, the spring 304, and the pressing sliding cover 302 will not pop out after the spring is compressed.

[0058] The spherical joint adapter can be selected as a standard part, and the spherical joint at the end of the steel wire rope assembly on the machine and the spherical joint of the steel wire rope at the end of the gas cylinder of the lifeboat are connected to or taken out of the shell 303 by pressing the pressing sliding cover 301 and the pressing sliding cover 302 with fingers, so as to realize the connection or disconnection of the steel wire rope assembly on the machine and the steel wire rope at the end of the gas cylinder of the lifeboat.

[0059] The pulley assembly 40 comprises a pulley 401, a pulley bracket 402, a bolt 403, a nut 404, a sleeve 405, and a quick-release spring pin 406, as shown in Figure 5 .

[0060] The steel wire rope is wound around the pulley 401, the pulley 401 can rotate around the bolt 403, the two sleeves 405 limit the left and right movement of the pulley, and the quick-release spring pin 406 prevents the steel wire rope from sliding out of the pulley groove when the pulley rotates.

[0061] The pulley bracket 402 is riveted on the body structure frame 2.

[0062] The operation method of the manual starting mechanism is as follows:

[0063] The pilot pulls out the handle 101 from the clamp 106, drives the connecting rod 102 to move in the pulling direction of the handle, and when the force value exceeds the breaking force value between the starting rod 103 and the bracket 105, the fuse is pulled off, and then drives the starting rod 103 to rotate around the bolt shaft fixed on the bracket 104. With the movement of the starting rod 103, the spherical joint 202 is pulled, driving the steel wire rope 201 to move in the anti-abrasion sleeve 204, driving the spherical joint 208 to move, and finally pulling the steel wire rope connected to the end of the gas cylinder of the lifeboat through the spherical joint adapter 30 and the pulley assembly 40, thereby starting the gas cylinder and inflating the lifeboat.

[0064] The handle assembly is arranged on the structure frame behind the helicopter pilot seat, which realizes the requirement of the pilot to pull the handle quickly to start the lifeboat and escape on water after the helicopter emergency landing on water.

[0065] The handle is fixed by the clamp and the starting rod is double-weakly insured by the fuse, which meets the functional requirement of the pilot to start the lifeboat quickly in the cockpit after the helicopter emergency landing on water and the safety design requirement that the handle is not mistakenly touched during normal flight.

[0066] The middle connection of the starting rod of the handle assembly is a wire rope spherical joint, and the other end is fixed by a bolt. After the handle is pulled, the structure of the starting rod plays the role of a lever, which can pull the wire rope with a smaller force.

[0067] The wire rope spherical joint on the machine is connected with the wire rope spherical joint at the end of the lifeboat gas cylinder through a spherical joint adapter, which realizes the quick connection or disconnection of the wire rope on the machine and the wire rope at the end of the lifeboat gas cylinder through the spherical joint adapter, and facilitates the disassembly and assembly of the lifeboat on the machine.

[0068] Through the pulley assembly, the wire rope in the 90-degree corner state is prevented from being stuck and unable to be pulled in the exposed state of the lifeboat gas cylinder end.

Claims

1. A manually activated mechanism for a helicopter rescue boat, characterised in that: The handle assembly, the steel wire rope assembly, the spherical joint connector, and the pulley assembly are included. The handle assembly is arranged on the structure frame near the pilot, the pulley assembly is arranged on the structure frame near the end of the gas cylinder of the lifeboat, and the spherical joint connector is arranged near the pulley assembly. One end of the steel wire rope assembly is connected to the handle assembly, and the other end is connected to the spherical joint connector.

2. The mechanism of claim 1, wherein: The handle assembly includes a handle, a connecting rod, an actuating rod, a first support, a second support, a clamp, and a mounting plate. One end of the handle is annular, and the other end is a double-ear connector connected to the connecting rod by a bolt. One end of the connecting rod is connected to the handle, and the other end is connected to the double-ear structure of the actuating rod by a bolt. One end of the actuating rod is a double-ear structure, the other end is a through hole, and the middle is a semispherical groove. The first support is a double-ear structure with a through hole, and the second support is also a double-ear structure with a fuse hole. The actuating rod is arranged between the double-ear structures of the two supports. The clamp is fixed to the mounting plate by riveting. The mounting plate is fixed to the machine body structure frame by a bolt.

3. The mechanism of claim 2, wherein: The steel wire rope assembly includes a steel wire rope, a first spherical joint, a second spherical joint, a wear-resistant sleeve, and two wear-resistant sleeve installation assemblies. The wear-resistant sleeve installation assemblies are installed on the machine body structure frame, and the wear-resistant sleeve is installed between the two wear-resistant sleeve installation assemblies. The steel wire rope is arranged in the wear-resistant sleeve, and the two ends of the steel wire rope pass through the two wear-resistant sleeve installation assemblies respectively to press the first spherical joint and the second spherical joint.

4. The mechanism of claim 3, wherein: The wear-resistant sleeve installation assembly includes a wear-resistant sleeve stopper and a wear-resistant sleeve stopper installation support. Two nuts of the wear-resistant sleeve stopper are installed on the wear-resistant sleeve stopper installation support. The tightness of the steel wire rope is adjusted by adjusting the positions of the two nuts on the wear-resistant sleeve stopper.

5. The mechanism of claim 4, wherein: The wear-resistant sleeve stopper installation support is riveted to the machine body structure frame. The spherical joint connector includes a first pressing sliding cover, a second pressing sliding cover, a shell, and a spring. The shell has a groove for connecting the spherical joint at the end of the steel wire rope.

6. The mechanism of claim 5, wherein: After the first pressing sliding cover, the spring, and the second pressing sliding cover are installed in the shell, the ends of the shell are flared to prevent the pressing sliding cover, the spring, and the pressing sliding cover from popping out after the spring is compressed. By pressing the two pressing sliding covers, the spring is contracted, the spherical joint at the end of the steel wire rope assembly is connected to the spherical joint of the steel wire rope at the end of the lifeboat gas cylinder, or the spherical joint is taken out from the shell, thereby realizing the connection or disconnection of the steel wire rope assembly on the machine and the steel wire rope at the end of the lifeboat gas cylinder. The pulley assembly includes a pulley, a pulley support, a sleeve, and a quick-release spring pin. The pulley support is riveted to the machine body structure frame, the pulley is installed on the pulley support, the steel wire rope is wound around the pulley, the pulley can rotate around the bolt, the two sleeves limit the left and right movement of the pulley, and the quick-release spring pin prevents the steel wire rope from sliding out of the pulley groove when the pulley rotates.

Images