Automatic parachute opening control device with multi-mode switching function

Abstract

The utility model discloses an automatic parachute opening control device with a multi-mode switching function, belongs to the technical field of aircraft parachute landing systems, aims to solve the problem of lack of parachute opening assistance, and comprises a connecting plate, a parachute cabin body and a cabin door, the parachute cabin body is fixedly mounted at the top of the connecting plate, and the cabin door is arranged on the upper portion of the parachute cabin body. A parachute opening mechanism is arranged in the parachute cabin body, the upper portion of the parachute opening mechanism is connected with a rope belt, the end of the rope belt is connected with a balance weight ball, the balance weight ball is connected with a parachute, the parachute is arranged in the parachute cabin body, and the parachute cabin body is connected with an air pump and installed on the top of the connecting plate. Through the parachute opening mechanism and the balance weight ball arranged on the edge of the parachute in a matched mode, the balance weight ball can form parachute opening auxiliary operation on the parachute in the parachute cabin body through the parachute opening mechanism, and therefore the parachute can be rapidly unfolded, and the parachute opening efficiency of the whole device on the parachute is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of aircraft parachute landing systems, specifically relating to an automatic parachute opening control device with multi-mode switching function. Background Technology

[0002] During descent, drones often use parachutes to land, which is not only safe but also less likely to cause damage to the drone. To ensure the stability of the drone during flight, the parachute deployment mechanism is usually installed at the center of the top surface of the drone.

[0003] The prior art patent publication number CN215043748U describes a parachute altitude control and deployment mechanism. This patent includes a drone and a deployment box. The drone has a connecting base at its top center, and the bottom of the deployment box is connected to the top of the connecting base. The deployment box includes a shell and a top cover. A parachute is housed inside the shell, and a rope is connected to the bottom of the parachute. A magnet is installed inside one end of the top cover, and a rotating shaft is located at the end of the top cover opposite the magnet. A connecting post is located below the rotating shaft, and a sleeve is fitted around the connecting post. The first spring is installed by attaching a magnetic block to one end of the top cover and a first spring to the outside of the rotating shaft at the other end. After the magnetic block and electromagnet are de-energized, the first spring, which was originally stretched, quickly contracts, causing the top cover to rotate quickly around the rotating shaft, shortening the opening time of the top cover and increasing the gap when the top cover is opened, which is more conducive to the deployment of the parachute. However, in actual use, there are still the following shortcomings: From a practical point of view, when the parachute is deployed, the patent lacks auxiliary operations for the deployment of the parachute, which reduces the deployment efficiency of the parachute.

[0004] Therefore, there is a need for an automatic parachute opening control device with multi-mode switching capabilities to solve the problem of lack of parachute opening assistance in the existing technology. Utility Model Content

[0005] The purpose of this invention is to provide an automatic umbrella opening control device with multi-mode switching function to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic parachute opening control device with multi-mode switching function, comprising a connecting plate, a parachute compartment body, and a door. The parachute compartment body is fixedly installed on the top of the connecting plate, the door is located on the upper part of the parachute compartment body, an opening mechanism is provided inside the parachute compartment body, a rope is connected to the upper part of the opening mechanism, a counterweight ball is connected to the end of the rope, a parachute is connected to the counterweight ball, the parachute is located inside the parachute compartment body, and an air pump is connected to the parachute compartment body and installed on the top of the connecting plate.

[0007] It should be noted in the scheme that there are several counterweight balls, which are evenly distributed around the outer periphery of the parachute.

[0008] It is further worth noting that the umbrella opening mechanism includes a movable plate, which is slidably disposed inside the umbrella compartment. A sealing ring is provided on the outer periphery of the movable plate, and a spring is fixedly connected to the bottom of the movable plate. A threaded rod is vertically disposed through the middle of the movable plate, and the bottom end of the threaded rod is connected to a connecting plate. A limit cylinder is rotatably disposed on the movable plate, and a rotating disk is fixedly connected to the upper part of the limit cylinder. The limit cylinder is threadedly connected to the threaded rod, and a fixed plate is fixedly connected to the upper part of the rotating disk. A limit groove matching a counterweight ball is provided on the fixed plate, and the rotating disk is connected to a rope.

[0009] It should be further noted that the sealing ring is made of rubber and is fitted to the inner wall of the parachute canopy.

[0010] In a preferred embodiment, the rotating disk is rotatably mounted on the upper part of the movable plate via a limiting cylinder.

[0011] In a preferred embodiment, the air pump is connected to the umbrella housing at a location below the movable plate.

[0012] Compared with the prior art, the automatic umbrella opening control device with multi-mode switching function provided by this utility model has at least the following beneficial effects:

[0013] By using a specially designed parachute deployment mechanism, along with a counterweight ball positioned at the edge of the parachute, the counterweight ball can assist in the parachute deployment process within the parachute compartment, enabling the parachute to deploy quickly and thus improving the overall deployment efficiency of the device. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the internal cross-sectional structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the disassembled structure of this utility model;

[0017] Figure 4 This is a partial disassembled structural diagram of the present invention;

[0018] Figure 5 This is a schematic diagram of the parachute deployment structure of this utility model.

[0019] In the diagram: 1. Connecting plate; 2. Parachute compartment body; 3. Door; 4. Air pump; 5. Parachute; 6. Ropes; 7. Counterweight ball; 8. Parachute opening mechanism; 801. Movable plate; 802. Sealing ring; 803. Spring; 804. Rotating disk; 805. Limiting cylinder; 806. Threaded rod; 807. Fixing plate; 808. Limiting groove. Detailed Implementation

[0020] The present invention will be further described below with reference to the embodiments.

[0021] Please see Figure 1-5 This utility model provides an automatic parachute opening control device with multi-mode switching function, including a connecting plate 1, a parachute compartment 2, and a door 3. The parachute compartment 2 is fixedly installed on the top of the connecting plate 1, and the door 3 is located on the upper part of the parachute compartment 2. An opening mechanism 8 is provided inside the parachute compartment 2. A rope 6 is connected to the upper part of the opening mechanism 8, and a counterweight ball 7 is connected to the end of the rope 6. A parachute 5 is connected to the counterweight ball 7. The parachute 5 is located inside the parachute compartment 2. An air pump 4 is connected to the parachute compartment 2 and installed on the top of the connecting plate 1. Several counterweight balls 7 are provided, and the several counterweight balls 7 are evenly distributed on the outer periphery of the parachute 5.

[0022] The counterweight ball 7 is connected to the edge of the parachute 5 by a quick-release buckle. The rope 6 is made of Kevlar fiber, which has high tensile strength. One end is riveted to the rotating disk 804, and the other end is embedded inside the counterweight ball 7.

[0023] Further as Figure 2 , Figure 3 and Figure 4 As shown, it is worth noting that the umbrella opening mechanism 8 includes a movable plate 801, which is slidably disposed inside the umbrella compartment 2. A sealing ring 802 is disposed on the outer periphery of the movable plate 801. The sealing ring 802 is made of rubber material and is disposed in close contact with the inner wall of the umbrella compartment 2. A spring 803 is fixedly connected to the bottom of the movable plate 801. A threaded rod 806 is vertically disposed through the middle of the movable plate 801. The bottom end of the threaded rod 806 is connected to the connecting plate 1. A limiting cylinder 805 is rotatably disposed on the movable plate 801. A rotating disk 804 is fixedly connected to the upper part of the limiting cylinder 805. The rotating disk 804 is rotatably disposed on the upper part of the movable plate 801 through the limiting cylinder 805. The limiting cylinder 805 is threadedly connected to the threaded rod 806. A fixing plate 807 is fixedly connected to the upper part of the rotating disk 804. A limiting groove 808 matching the counterweight ball 7 is opened on the fixing plate 807. The rotating disk 804 is connected to the rope 6.

[0024] In use, under the elastic force of spring 803, the movable plate 801 slides inside the parachute compartment 2, causing the limiting cylinder 805 to rotate on the threaded rod 806. The rotation of the limiting cylinder 805 drives the rotating disk 804 and the fixed plate 807 to rotate inside the door 3. This causes the counterweight ball 7 to generate outward centrifugal force on the fixed plate 807 through the limiting groove 808. Through the upward sliding operation of the movable plate 801, the fixed plate 807 protrudes from the upper part of the parachute compartment 2. At this time, the inner wall of the parachute compartment 2 releases the limiting operation on the counterweight ball 7. Under the action of centrifugal force, the counterweight ball 7 can quickly form an outward deployment operation, thereby driving the parachute 5 to quickly open, thus improving the opening efficiency of the parachute 5.

[0025] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that the connection of the air pump 4 to the parachute body 2 is located below the movable plate 801.

[0026] In use, the air pump 4 pressurizes the bottom of the parachute compartment 2, and with the elastic force of the spring 803, the efficiency of the movable plate 801 sliding inside the parachute compartment 2 is improved, thereby ensuring that the counterweight ball 7 receives sufficient centrifugal force to complete the opening of the parachute 5.

[0027] Specifically, the air pump 4 is linked to the flight controller via a solenoid valve. When the hatch 3 is opened, the air pump 4 inflates the airtight cavity, causing the movable plate 801 to accelerate upward under the combined action of spring force and air pressure. The air pressure value is dynamically adjusted through a PID algorithm to ensure that the displacement curve of the movable plate 801 matches the rotation speed of the rotating disk 804.

[0028] In one embodiment, suitable for low-altitude parachute opening, when the rotating disk 804 rotates, the counterweight ball 7 is thrown radially out along the limiting groove 808 under the action of centrifugal force, and the parachute body unfolds.

[0029] In another embodiment, suitable for high-altitude parachute opening, the movable plate 801 is rapidly raised by the overpressure driven by the air pump 4, so that the fixed plate 807 ejects the counterweight ball 7 out of the parachute compartment 2 as a whole, avoiding insufficient centrifugal force that would cause the parachute to fail to open.

[0030] This solution has the following working process: When this device is in use, the opening of the hatch 3 causes the movable plate 801 to slide within the parachute housing 2 under the elastic force of the spring 803. This causes the limiting cylinder 805 to rotate on the threaded rod 806. The rotation of the limiting cylinder 805 then drives the rotating disk 804 and the fixed plate 807 to rotate within the hatch 3. This causes the counterweight ball 7 to generate an outward centrifugal force on the fixed plate 807 through the limiting groove 808. The upward sliding operation of the movable plate 801 causes the fixed plate 807 to remain on the parachute housing 2. With the parachute protruding, the inner wall of the parachute compartment 2 releases the restraining operation on the counterweight ball 7. Under the action of centrifugal force, the counterweight ball 7 can quickly unfold outward, thereby driving the parachute 5 to open rapidly, thus improving the opening efficiency of the parachute 5. At the same time, through the pressurization setting of the air pump 4, air pressure is applied to the bottom of the parachute compartment 2. Combined with the elastic force of the spring 803, the sliding efficiency of the movable plate 801 in the parachute compartment 2 can be improved, thereby ensuring that the counterweight ball 7 receives sufficient centrifugal force to complete the opening operation of the parachute 5.

[0031] In summary: By using the parachute opening mechanism 8, in conjunction with the counterweight ball 7 located at the edge of the parachute 5, the counterweight ball 7 can assist the parachute 5 in opening through the parachute opening mechanism 8 inside the parachute compartment 2, thereby enabling the parachute 5 to quickly complete the deployment and improving the overall opening efficiency of the parachute 5.

Claims

1. An automatic parachute opening control device with multi-mode switching function, comprising a connecting plate (1), a parachute compartment body (2), and a door (3), wherein the parachute compartment body (2) is fixedly installed on the top of the connecting plate (1), and the door (3) is located on the upper part of the parachute compartment body (2), characterized in that: The parachute housing (2) is equipped with a parachute opening mechanism (8). A rope (6) is connected to the upper part of the parachute opening mechanism (8). A counterweight ball (7) is connected to the end of the rope (6). A parachute (5) is connected to the counterweight ball (7). The parachute (5) is located inside the parachute housing (2). An air pump (4) is connected to the parachute housing (2) and installed on the top of the connecting plate (1).

2. The automatic umbrella opening control device with multi-mode switching function according to claim 1, characterized in that: The counterweight balls (7) are provided in a plurality of units, and the plurality of counterweight balls (7) are evenly distributed around the outer periphery of the parachute (5).

3. The automatic umbrella opening control device with multi-mode switching function according to claim 2, characterized in that: The umbrella opening mechanism (8) includes a movable plate (801), which is slidably disposed inside the umbrella compartment (2). A sealing ring (802) is provided on the outer periphery of the movable plate (801). A spring (803) is fixedly connected to the bottom of the movable plate (801). A threaded rod (806) is vertically disposed through the middle of the movable plate (801). The bottom end of the threaded rod (806) is connected to the connecting plate (1). A limiting cylinder (805) is rotatably disposed on the movable plate (801). A rotating disk (804) is fixedly connected to the upper part of the limiting cylinder (805). The limiting cylinder (805) is threadedly connected to the threaded rod (806). A fixing plate (807) is fixedly connected to the upper part of the rotating disk (804). A limiting groove (808) matching the counterweight ball (7) is opened on the fixing plate (807). The rotating disk (804) is connected to the rope (6).

4. An automatic umbrella opening control device with multi-mode switching function according to claim 3, characterized in that: The sealing ring (802) is made of rubber material and is fitted to the inner wall of the parachute compartment (2).

5. An automatic umbrella opening control device with multi-mode switching function according to claim 4, characterized in that: The rotating disk (804) is rotatably mounted on the upper part of the movable plate (801) via the limiting cylinder (805).

6. An automatic umbrella opening control device with multi-mode switching function according to claim 5, characterized in that: The air pump (4) is connected to the umbrella cabin body (2) and located below the movable plate (801).

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