A repair system for repairing a parachute for planetary exploration

Abstract

An embodiment of the present invention discloses a repair system for repairing a parachute for planetary exploration. The repair system includes a folding member and a fuse, and the fuse is arranged in the folding member. By receiving a sensing signal reflecting the dust impact force through the fuse, when the sensing signal is greater than a preset threshold, the fuse melts, and the folding member changes from a folded state to an unfolded state after the fuse melts to automatically repair the damaged part of the parachute.

Description

Technical Field

[0001] The present invention relates to the technical field of near - Earth exploration, and particularly to a repair system for a parachute used in planetary exploration. Background Art

[0002] In recent years, near - Earth exploration has become a popular exploration mission. Due to the characteristics of the planetary atmospheric environment, such as dryness and large diurnal temperature differences, extreme weather conditions such as sandstorms often exist near the planetary surface. Under the action of strong winds, dry and loose planetary surface soil particles will rise to several kilometers or even dozens of kilometers, forming a dense dust aerosol on the planetary surface. During the process of near - Earth planetary exploration, high - speed moving dust particles will randomly impact the surface of the detector parachute, damaging the parachute structure and posing a serious threat to the safety of the parachute.

[0003] Currently, the prior art CN111516883 A discloses a parachute structure and method with a skeleton - combined break that can be repaired at high altitude. This parachute has a magnetic parachute separation structure, a wind pressure sensor, and a first - visit structure, and can achieve the closed repair of the damaged area of the parachute. However, this repair system requires the user to manually activate the switch according to needs, which has certain limitations in near - Earth space exploration.

[0004] Therefore, in view of the above - mentioned technical problems, it is necessary to provide a repair system for a parachute used in planetary exploration, which can automatically start the repair action according to needs. Summary of the Invention

[0005] In view of this, in order to solve the above problems, the purpose of the embodiments of the present invention is to provide a repair system for a parachute used in planetary exploration.

[0006] To achieve the above purpose, the technical solution provided by the embodiments of the present invention is as follows: A repair system for a parachute used in planetary exploration includes: a connecting member for fixing the repair system to the parachute body; a folding member for repairing the damaged part of the parachute; the folding member has a folded state and an unfolded state, and the initial state of the folding member is the folded state; a repair rod, both ends of the rod of the repair rod are respectively fixed to the connecting member, and the folding member is arranged between the two repair rods; a fuse, arranged in the folding member, the fuse is used to receive a sensing signal and melt when the sensing signal is greater than a preset threshold, and the folding member changes from the folded state to the unfolded state after the fuse melts.

[0007] As a further improvement of the present invention, the connecting member includes a nail shaft for fixing on the parachute body; an insulating sleeve sleeved on the nail shaft; the insulating sleeve is provided with a groove; a wire is arranged in the groove, one end of the wire is connected to the sensor generating the sensing signal, and the other end of the wire is connected to the fuse.

[0008] As a further improvement of the present invention, through holes are provided at both ends of the rod of the repair rod member, and the connecting member passes through the through holes.

[0009] As a further improvement of the present invention, the rod body part of the repair rod member is penetrated, and the penetrated part is used for storing the folding member.

[0010] As a further improvement of the present invention, the repair rod member has toughness.

[0011] As a further improvement of the present invention, the fuse includes a protective sleeve provided with a hollow channel; a spring is arranged in the hollow channel; the spring has a compressed state and a natural state, and the initial state of the spring is the compressed state; a fuse wire is penetrated through the hollow channel of the spring; an electrode is arranged at the end of the fuse wire and is electrically connected to the fuse wire.

[0012] As a further improvement of the present invention, the protective sleeve is made of an insulating material.

[0013] As a further improvement of the present invention, the curvature of the spring is consistent with the curvature of the parachute body of the parachute.

[0014] As a further improvement of the present invention, the fuse wire is a fusing type fuse wire.

[0015] As a further improvement of the present invention, the curvature of the fuse wire is consistent with the curvature of the parachute body of the parachute.

[0016] The present invention has the following advantages:

[0017] The repair system for repairing the parachute for planetary exploration provided by the embodiment of the present invention includes a folding member and a fuse. The fuse is arranged in the folding member. The fuse receives the sensing signal reflecting the dust impact force and fuses when the sensing signal is greater than a preset threshold. After the fuse fuses, the folding member changes from the folded state to the unfolded state to automatically repair the damaged part of the parachute. Description of the Drawings

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 Stereoscopic structure diagram of a parachute system for planetary exploration provided by an embodiment of the present invention;

[0020] Figure 2 Stereoscopic structure schematic diagram of a repair system provided by an embodiment of the present invention;

[0021] Figure 3 For Figure 2 Stereoscopic structure diagram of a connecting member of the repair system shown in the embodiment;

[0022] Figure 4 For Figure 2 Stereoscopic structure diagram of a repair rod of the repair system shown in the embodiment;

[0023] Figure 5 For Figure 2 Stereoscopic structure diagram of a fuse of the repair system shown in the embodiment.

[0024] Annotation of reference numerals in the drawings:

[0025] 100, parachute system for planetary exploration; 10, parachute main body; 20, connecting part

[0026] 30, landing part; 40, sensor; 50, repair system; 513, wire

[0027] 51, connecting member; 53, folding member; 52, repair rod; 54, fuse

[0028] 511, nail shaft; 512, insulating layer; 521, through hole; 523, through part

[0029] 541, protective sleeve; 542, spring; 544, fuse wire; 543, electrode Detailed implementation manners

[0030] To enable those skilled in the art to better understand the technical solutions in the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0031] As Figure 1 shown, a three-dimensional structural schematic diagram of a parachute system for planetary exploration provided by an embodiment of the present invention. In this embodiment, the parachute system 100 for planetary exploration includes a parachute, a sensor 40, and a repair system 50. The parachute includes a parachute main body 10, a landing part 30, and a connecting part 20 for connecting the parachute main body and the landing part. In a specific embodiment, the landing part 30 is a near-earth detector, and the connecting part 20 is a connecting rope. Among them, the sensor 40 is disposed on the parachute main body 10 for detecting the impact force of dust and generating a sensing signal. The repair system 50 is disposed on the parachute main body 10 and is electrically connected to the sensor 40. The repair system 50 performs a repair action based on the sensing signal generated by the sensor 40.

[0032] As Figure 2 shown, a three-dimensional structural schematic diagram of a repair system provided by an embodiment of the present invention. The repair system 50 includes a connecting member 51, a repair rod 52, a folding member 53, and a fuse 54. The connecting member 51 is used to fix the repair system 50 to the parachute main body 10 of the parachute. The folding member 53 is used to repair the damaged part of the parachute; among them, the folding member 53 has a folded state and an unfolded state, and the initial state of the folding member 53 is the folded state. The two ends of the repair rod 52 are respectively fixed to the connecting member 51, and the folding member 53 is disposed between the two repair rods 53. The fuse 54 is disposed in the folding member 53. The fuse 54 is used to receive the sensing signal generated by the sensor 40 and fuse when the sensing signal is greater than a preset threshold. The folding member 53 changes from the folded state to the unfolded state after the fuse 54 fuses.

[0033] As Figure 3 shown, in this embodiment, the connecting member 51 includes a nail shaft 511, an insulating sleeve 512, and a wire 513. The nail shaft 511 is used to be fixed on the parachute main body 10 of the parachute. The insulating sleeve 512 is sleeved on the nail shaft 511, and the insulating sleeve 512 is provided with a groove (not shown in the figure). The insulating sleeve 512 is made of rubber material, and a groove is opened in the middle thereof to accommodate the wire 513. The wire 513 is disposed in the groove. One end of the wire 513 is connected to the sensor 40 that generates the sensing signal, and the other end of the wire 513 is connected to the fuse 54.

[0034] As Figure 4As shown, in this embodiment, through holes 521 are respectively provided at both ends of the rod of the repair rod member 52, and the connecting member 51 is inserted through the through holes 521. Specifically, the diameter of the nail shaft 511 is the same as the aperture of the through hole 521, and the nail shaft 511 and the through hole 521 cooperate with each other. The length of the nail shaft 511 is greater than the thickness of the rod body of the repair rod member 52. Preferably, the length of the nail shaft 511 is three times the thickness of the rod body of the repair rod member 52. The rod body portion of the repair rod member 52 is penetrated, and the penetrated portion can be defined as the penetrated portion 523. Among them, the penetrated portion 523 is used to store the folding member 53. The repair rod member 52 has toughness and can be made of a thermoplastic resin-based aramid fiber reinforced composite material, so as not to affect the overall flexibility of the parachute.

[0035] The initial state of the folding member 53 is a folded state, forming a folded portion. After the fuse 54 is melted, the folding member 53 automatically unfolds the folded portion to repair the damaged portion of the parachute body. Preferably, the folding member 53 is made of the same material as the parachute canopy, so that the repaired parachute can have consistency.

[0036] As Figure 5 shown, the fuse 54 includes a protective sleeve 541, a spring 542, a fuse wire 544 and an electrode 543. The protective sleeve 541 is made of an insulating material and is provided with a hollow channel. The spring 542 is disposed in the hollow channel; the spring 542 has a compressed state and a natural state, and the initial state of the spring 542 is a compressed state. The curvature of the spring 542 is the same as the curvature of the parachute body, and the flexible deployment of the repair system during the repair process can be realized to better conform to the parachute body. The fuse wire 544 is inserted through the hollow channel of the spring 542. The electrode 543 is disposed at the end of the fuse wire 544 and is electrically connected to the fuse wire 544. Preferably, the fuse is a fusible fuse. The curvature of the fuse wire is the same as the curvature of the parachute body, and the flexible deployment of the repair system during the repair process can be realized to better conform to the parachute body. In a state where the parachute body is not impacted by dust, the spring 542 is in a compressed state, and the spring 542 is constrained by the protective sleeve 541 and the fuse wire 544.

[0037] In this embodiment, the repair system 50 implements a repair action based on electrical excitation and can realize closed-loop real-time self-repair. Further, the repair system 50 can set the rated signal of the fuse 54 according to the specific planetary exploration mission and the parachute canopy situation, obtain relevant preset thresholds, and can adaptively change for different tasks and scenarios.

[0038] When the sensor 40 is impacted by dust particles, a pulsed voltage is generated. According to the performance test of the parachute, the impact energy threshold that the parachute canopy structure can withstand in near-space exploration can be obtained, and then the pulsed voltage threshold of the sensor 40 can be calculated. The rated voltage or rated current of the fuse used in different parachutes for near-earth surface exploration is determined according to the above pulsed voltage threshold.

[0039] When the parachute is impacted by dust and its canopy structure is damaged, the sensor 40 generates a pulsed voltage exceeding the preset threshold. The current corresponding to the pulsed voltage is transmitted through the wire 513 to the fuse 54, and the fuse 544 inside the fuse 54 melts. The spring 542 loses its restraint and generates a lateral tension. Under the action of the spring 542, the repair rod 52 rotates around the connecting piece 51, and the folded part of the folding piece 53 unfolds, and the canopy between the connecting rods also opens accordingly. The repair rod 52 ensures the overall structural strength of the damaged parachute canopy. The folding piece 53 between the repair rods 52 can fill the damaged hole in the canopy, thereby realizing the self-repair of the parachute.

[0040] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed claim.

[0041] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A repair system for repairing a parachute for planetary exploration, characterized in that, The repair system includes: A connecting member for fixing the repair system to the parachute body of the parachute; A folding member for repairing the damaged part of the parachute; the folding member has a folded state and an unfolded state, and the initial state of the folding member is the folded state; Repair rods, with the two ends of the rods of the repair rods respectively fixing the connecting member, and the folding member is arranged between the two repair rods; A fuse, arranged in the folding member, the fuse is used to receive a sensing signal and fuse when the sensing signal is greater than a preset threshold, and the folding member changes from the folded state to the unfolded state after the fuse fuses.

2. The repair system for a parachute used in planetary exploration according to claim 1, wherein, The connecting member includes: A nail shaft for fixing on the parachute body of the parachute; An insulating sleeve sleeved on the nail shaft; the insulating sleeve is provided with a groove; A wire arranged in the groove, one end of the wire is connected to the sensor generating the sensing signal, and the other end of the wire is connected to the fuse.

3. A repair system for repairing a parachute for planetary exploration according to claim 1, characterized in that, The two ends of the rod of the repair rod are provided with through holes, and the connecting member passes through the through holes.

4. A repair system for a parachute used in planetary exploration according to claim 1, characterized in that, The rod body part of the repair rod is penetrated, and the penetrated part is used to store the folding member.

5. A repair system for repairing a parachute for planetary exploration according to claim 1, characterized in that, The repair rod has toughness.

6. A repair system for repairing a parachute for planetary exploration according to claim 1, characterized in that, The fuse includes: A protective sleeve provided with a hollow channel; A spring arranged in the hollow channel; the spring has a compressed state and a natural state, and the initial state of the spring is the compressed state; A fuse wire penetrated through the hollow channel of the spring; An electrode arranged at the end of the fuse wire and electrically connected to the fuse wire.

7. A repair system for repairing a parachute for planetary exploration according to claim 6, characterized in that, The protective sleeve is made of an insulating material.

8. A repair system for repairing a parachute for planetary exploration according to claim 6, characterized in that, The curvature of the spring is consistent with the curvature of the parachute body of the parachute.

9. A repair system for repairing a parachute for planetary exploration according to claim 6, characterized in that, The fuse wire is a fusing type fuse wire.

10. A repair system for a parachute used in planetary exploration according to claim 6, characterized in that, The curvature of the fuse wire is consistent with the curvature of the parachute body of the parachute.

Images