A satellite connection device

Abstract

The present invention relates to a satellite connection device, including a first substrate, a second substrate, a third substrate, a first telescopic member, a first elastic member, a second telescopic member, a second elastic member, a limiting rod, a limiting assembly, and a suction cup. When the connection device of the present invention docks with a functional satellite instantaneously, the elastic members drive the first telescopic member and the second telescopic member to change from a contracted state to an extended state, providing an appropriate docking distance and impact force for docking; at the moment when the suction cup contacts the surface of the functional satellite, there may be a problem of an inclined angle between the two. At this time, the suction cup with elasticity and a cavity is locally deformed under the impact of the functional satellite. The pressure balance holes ensure that the elastic deformation of the suction cup can be completed in the shortest possible time, reducing the recoil force on the connection device at this moment. During the process of resetting the deformation amount, a small range of angle adjustment is provided for the connection device, so that the adsorption surface of the suction cup is parallel to the surface of the functional satellite, thereby improving the connection reliability after docking.

Description

Technical Field

[0001] The present invention relates to the field of aviation technology, and particularly to a satellite connection device. Background Art

[0002] In order to meet the functional requirements of communication, navigation, remote sensing, etc., humans usually need to launch corresponding functional satellites into space. The successfully launched satellites will revolve along corresponding orbits in space.

[0003] When a functional satellite fails, the staff hopes to repair it through corresponding means. This repair process cannot be completed on the ground and usually requires launching a repair satellite with repair functions into space. When the repair satellite repairs the functional satellite, the two need to maintain a relatively static state, which requires docking the repair satellite launched later into space with the functional satellite through a connection device. Before the repair satellite is launched, the connection device is first installed on the repair satellite. After the repair satellite is launched, it is required that the connection device docks with the functional satellite stably with as small an impact force as possible. If the impact force is too large, the functional satellite may be knocked off its original orbit and unable to continue to function. If the impact force is too small, the connection device may not be able to stably connect with the functional satellite. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a satellite connection device that can balance the impact force and improve the connection stability in view of the current situation of the prior art.

[0005] The technical solution adopted by the present invention to solve the above technical problems is as follows:

[0006] A satellite connection device, comprising:

[0007] A first substrate for connecting with a repair satellite on its first side;

[0008] A second substrate disposed on the second side of the first substrate and capable of reciprocating relative to the first substrate;

[0009] A third substrate disposed between the first substrate and the second substrate and capable of reciprocating relative to the first substrate and the second substrate;

[0010] A first telescopic member telescopically connected between the first substrate and the third substrate;

[0011] A first elastic member disposed between the first substrate and the third substrate, so that the third substrate always maintains a tendency to move away from the first substrate;

[0012] A second telescopic member telescopically connected between the third substrate and the second substrate;

[0013] A second elastic member is disposed between the third substrate and the second substrate, causing the second substrate to always tend to move away from the third substrate;

[0014] A limiting rod, with its first end fixedly connected to the second substrate and its second end extending towards the third substrate and the first substrate; when the first telescopic member and the second telescopic member are in a compressed state, the limiting rod passes through the third substrate and the first substrate so that its second end is located on the first side of the first substrate; when the first telescopic member and the second telescopic member are in an extended state, the limiting rod is released from the first side of the first substrate and is in a free state;

[0015] A limiting assembly is disposed on the first side of the first substrate. When the first telescopic member and the second telescopic member are in a compressed state, the limiting assembly is connected to the second end of the limiting rod to limit it. When the first telescopic member and the second telescopic member are in an extended state, the limiting assembly is disconnected from the limiting rod; and

[0016] A suction cup, which is elastic and is disposed on the side of the second substrate facing away from the first substrate for connecting with the functional satellite; the inside of the suction cup is hollow to form a cavity with an outer port that can be locally compressed. A pressure balance hole for communicating the inside of the cavity with the outside is opened on the side wall of the suction cup. An adsorption block arranged around the outer port of the cavity is provided on the outer end surface of the suction cup, and an adhesive layer capable of bonding with the surface of the functional satellite is coated on the outer surface of the adsorption block.

[0017] In the present invention, the first telescopic member and the second telescopic member have the same structure. The first telescopic member includes a guide post, a first sleeve, and a second sleeve. The first end of the guide post is fixed on the third substrate and extends towards the first substrate. The first sleeve is sleeved on the outer periphery of the guide post and can move relative to the guide post towards the first substrate. The second sleeve is sleeved on the outer periphery of the first sleeve and can move relative to the first sleeve towards the first substrate. A limiting structure for preventing the second sleeve from detaching from the first sleeve is provided between the first end of the second sleeve and the first sleeve. The second end of the second sleeve is directly or indirectly connected to the first substrate. The first elastic member and the second elastic member have the same structure. The first elastic member is a linear spring sleeved on the outer periphery of the first telescopic member. The first end of the linear spring abuts against the first substrate, and the second end abuts against the third substrate.

[0018] Preferably, the second sleeve is indirectly connected to the first substrate, and further includes a third sleeve and a fourth sleeve. The third sleeve is sleeved on the outer periphery of the second sleeve and can move relative to the second sleeve towards the first substrate. A limiting structure for restricting the third sleeve from detaching from the second sleeve is provided between the third sleeve and the second sleeve. The fourth sleeve is sleeved on the outer periphery of the third sleeve and can axially move, and its first end is connected to the first substrate. A limiting structure for restricting the fourth sleeve from detaching from the third sleeve is provided between the fourth sleeve and the third sleeve.

[0019] With the first telescopic member and the second telescopic member having the above structures, there are five gradients of telescopic margins between the first substrate and the third substrate, and between the third substrate and the second substrate. It can not only provide a larger telescopic amount, but also have better stability between the first substrate and the third substrate, and between the third substrate and the second substrate before and after telescoping, so as to avoid shaking and improve the capture accuracy of the suction cup during satellite docking.

[0020] Preferably, when the first telescopic member is in the contracted state, the third sleeve is hidden inside the fourth sleeve, the second sleeve is hidden inside the third sleeve, the first sleeve is hidden inside the second sleeve, and the guide post is hidden inside the first sleeve. A boss is provided on the side of the third substrate facing the first substrate and is arranged around the outer periphery of the guide post. A limiting cavity for receiving the corresponding ends of each sleeve is formed inside the boss. When the first telescopic member is in the extended state, the first sleeve is located outside the guide post and is connected to the guide post through a limiting structure, the second sleeve is located outside the first sleeve and is connected to the first sleeve through a limiting structure, the third sleeve is located outside the second sleeve and is connected to the second sleeve through a limiting structure, and the fourth sleeve is located outside the third sleeve and is connected to the third sleeve through a limiting structure. The above-mentioned sleeving method of each sleeve can improve the mating stability between the first substrate and the second substrate before satellite launch when the first telescopic member is in the contracted state; the above-mentioned limiting method between each sleeve can improve the mating stability between the first substrate and the second substrate when the connecting device is in the state of being docked with the functional satellite.

[0021] Preferably, the limiting structure includes a first limiting boss and a second limiting boss. The first limiting boss is arranged on the inner wall of the outer sleeve and close to the third substrate, and the second limiting boss is arranged on the outer wall of the inner sleeve or the guiding column and close to the first substrate. In the contracted state of the first telescopic member, the first limiting boss and the second limiting boss are relatively far away from each other and are respectively located at both ends of the first telescopic member. In the extended state of the first telescopic member, the first limiting boss and the second limiting boss are relatively close to each other and are in contact and cooperation. In the contracted state of the first telescopic member, the above structure will not interfere with each component. In the extended state of the first telescopic member, the above structure can simply and reliably constrain the positions between the sleeves, maintaining the docking stability between the repaired satellite and the functional satellite.

[0022] For the convenience of assembly and connection, a first fitting for fixing the first end of the fourth sleeve is arranged on the first substrate, and a second fitting for fixing the first end of the guiding column and the first end of the fourth sleeve in the second telescopic assembly is arranged on the third substrate. The first fitting and the second fitting have the same structure and are both threadedly connected to the corresponding fixed parts.

[0023] Preferably, the first fitting has a first gasket that can abut against the lower surface of the first substrate. A through hole penetrating up and down is formed in the central part of the first gasket. A first connecting sleeve extending upward around the through hole and having an internal thread is arranged at the top of the first gasket. Correspondingly, a connecting hole that can be inserted and connected with the first connecting sleeve is formed on the first substrate. A screw passes through the connecting hole from above the first substrate and is threadedly connected to the internal thread of the first connecting sleeve. A second connecting sleeve extending downward around the periphery of the through hole and having an external thread is arranged below the first gasket. The upper port of the fourth sleeve is inserted and connected with the second connecting sleeve, and an inner ring thread that cooperates with the external thread of the second connecting sleeve for locking is arranged on the inner wall surface of the upper end of the fourth sleeve.

[0024] The second fitting has a second gasket that can abut against the lower surface of the third substrate. A hole penetrating up and down is formed in the central part of the second gasket. A first connecting cylinder extending upward around the hole and having an internal thread is arranged at the top of the second gasket. Correspondingly, an assembly hole that can be inserted and connected with the first connecting cylinder is formed on the third substrate. The lower end of the guiding column passes through the assembly hole from above the third substrate and is threadedly connected to the internal thread of the first connecting cylinder. A second connecting cylinder extending downward around the periphery of the hole and having an external thread is arranged below the second gasket. The upper port of the fourth sleeve in the second telescopic member is inserted and connected with the second connecting cylinder, and an inner ring thread that cooperates with the external thread of the second connecting cylinder for locking is arranged on the inner wall surface of the upper end of the fourth sleeve.

[0025] With the above structure, the first substrate, the first telescopic member, the third substrate, and the second telescopic member are reliably connected through as few and simple connecting pieces as possible, which is convenient for operation and reduces costs.

[0026] In the present invention, the first end of the limiting rod is connected to the central part of the circular second substrate. The third substrate is annular and has an opening in the center for the limiting rod to pass through. A through hole for the limiting rod to pass through is provided in the central part of the first substrate. The limiting assembly includes a base body, a limiting column and a driving member. The base body is arranged on the surface of the first side of the first substrate and has a slot corresponding to the through hole and the second end of the limiting rod. A plurality of limiting holes are arranged at intervals along the length direction on the limiting rod. The driving member is arranged beside the slot and has an output end facing the slot. The limiting column is connected to the output end of the driving member and can be driven by the driving member to pass through the side wall of the slot and insert into or withdraw from the limiting hole of the limiting rod. In the state of repairing the satellite launch, the driving member drives the limiting column to pass through the limiting hole of the limiting rod, so that the first telescopic member and the second telescopic member are kept contracted. When it is necessary to dock with the functional satellite, the driving member drives the limiting column to withdraw from the limiting hole of the limiting rod, and the first telescopic member and the second telescopic member are extended under the drive of the elastic member, so as to provide a required extension amount and impact force for the satellite connecting device, so that the suction cup can successfully grasp the functional satellite.

[0027] As an improvement, the suction cup is formed into a frustum-shaped body with an outer diameter gradually increasing from the second substrate. Correspondingly, the shape of the cavity conforms to the shape of the body. An equilibrium plate that can automatically balance to be parallel to the surface of the functional satellite when it is in contact with the surface of the functional satellite is arranged at the outer end of the body. The equilibrium plate and the body are integrally formed and both are rubber parts. A notch that penetrates the outside and the cavity is provided in the central part of the equilibrium plate. The adsorption block is a silica gel part arranged on the outer surface of the equilibrium plate. At the moment when the satellite connecting device docks with the surface of the functional satellite, there may be a certain angle of inclination between the suction cup and the surface of the functional satellite. The existence of this inclination angle may directly lead to docking failure or affect the reliability of docking. The equilibrium plate provided in the present invention is annular. When the edge of the equilibrium plate or the adsorbent on it first contacts the surface of the functional satellite, the equilibrium plate made of silicone rubber material will produce buffering due to its own elasticity, causing local elastic deformation of the body. During the process of the body resetting due to its own elasticity, it drives the satellite connecting device to automatically adjust its position relative to the functional satellite until the equilibrium plate and the above-mentioned adsorbent are basically parallel to the surface of the functional satellite, so as to ensure successful docking and good stability after successful docking.

[0028] Compared with the prior art, the advantages of the present invention are as follows: When the connecting device of the present invention docks with the functional satellite, the limiting component cancels the limitation on the limiting rod, and the first elastic member and the second elastic member drive the first telescopic member and the second telescopic member to change from the contracted state to the extended state, providing an appropriate docking distance and impact force for docking; At the moment when the suction cup contacts the surface of the functional satellite, there may be a problem of an inclined angle between the two. At this time, the suction cup with elasticity and cavity is locally deformed under the impact of the functional satellite, and the pressure balance hole ensures that the elastic deformation of the suction cup can be completed in the shortest possible time while reducing the recoil force on the connecting device at this moment. During the process of resetting the deformation amount, a small range of angle adjustment is provided for the connecting device, so that the adsorption surface of the suction cup is parallel to the surface of the functional satellite, ensuring successful docking with the functional satellite and improving the connection reliability after docking. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 Structural schematic diagram of an embodiment of the present invention (contracted state, connecting and repairing satellite);

[0030] Figure 2 Structural schematic diagram of an embodiment of the present invention (expanded state);

[0031] Figure 3 is Figure 2 cross-sectional view;

[0032] Figure 4 is Figure 3 enlarged view of part X in

[0033] Figure 5 is Figure 3 enlarged view of part Y in

[0034] Figure 6 is Figure 3 enlarged view of part Z in

[0035] Figure 7 Structural schematic diagram of the suction cup in an embodiment of the present invention;

[0036] Figure 8 is Figure 7 cross-sectional view;

[0037] Figure 9 Partial cross-sectional view of an embodiment of the present invention (contracted state);

[0038] Figure 10 Another partial cross-sectional view of an embodiment of the present invention (contracted state);

[0039] Figure 11 Schematic position diagram of the satellite connecting device of an embodiment of the present invention at the moment of contacting the functional satellite. DETAILED DESCRIPTION OF THE INVENTION

[0040] The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings.

[0041] As Figures 1 - 11 shown, the satellite connection device of this embodiment includes a first substrate 1, a second substrate 2, a third substrate 3, a first telescopic member 10, a first elastic member 100, a second telescopic member 20, a second elastic member 200, a limiting rod 4, a limiting assembly 5, and a suction cup 6.

[0042] The first substrate 1 and the second substrate 2 are disc-shaped, and the third substrate 3 is annular and disposed between the first substrate 1 and the second substrate 2. For the convenience of description, the "upper" and "lower" relationships in the following position descriptions are in accordance with the attached drawings.

[0043] Specifically, the first substrate 1 is used to connect to the repair satellite A on its upper side; the second substrate 2 is disposed on the lower side of the first substrate 1 and can reciprocate relative to the first substrate 1; the third substrate 3 is disposed between the first substrate 1 and the second substrate 2 and can reciprocate relative to the first substrate 1 and the second substrate 2. The first telescopic member 10 is telescopically connected between the first substrate 1 and the third substrate 3. The first elastic member 100 is disposed between the first substrate 1 and the third substrate 3, so that the third substrate 3 always maintains a tendency to move away from the first substrate 1. The second telescopic member 20 is telescopically connected between the third substrate 3 and the second substrate 2. The second elastic member 200 is disposed between the third substrate 3 and the second substrate 2, so that the second substrate 2 always maintains a tendency to move away from the third substrate 3. The lower end of the limiting rod 4 is fixedly connected to the second substrate 2, and the upper end of the limiting rod 4 extends toward the third substrate 3 and the first substrate 1. When the first telescopic member 10 and the second telescopic member 20 are in a compressed state, the limiting rod 4 passes through the third substrate 3 and the first substrate 1 and its upper end is located on the upper side of the first substrate 1; when the first telescopic member 10 and the second telescopic member 20 are in an extended state, the limiting rod 4 is released from the upper side of the first substrate 1 and is in a free state. The limiting assembly 5 is disposed on the upper side of the first substrate 1. When the first telescopic member 10 and the second telescopic member 20 are in a compressed state, the limiting assembly 5 is connected to the upper end of the limiting rod 4 to limit it. When the first telescopic member 10 and the second telescopic member 20 are in an extended state, the limiting assembly 5 is disengaged from the limiting rod 4. The suction cup 6 is elastic and is disposed on the side surface of the second substrate 2 facing away from the first substrate 1 for connecting to the functional satellite B. As Figure 7 、 8 shown, the inside of the suction cup 6 is hollow to form a cavity 61 with an outer port that can be locally compressed. A pressure balance hole 62 for communicating the inside of the cavity 61 with the outside is provided on the side wall of the suction cup 6. An adsorption block 63 arranged around the outer port of the cavity 61 is provided on the outer end surface of the suction cup 6, and an adhesive layer capable of bonding to the surface of the functional satellite B is coated on the outer surface of the adsorption block 63.

[0044] In this embodiment, as shown in Figure 2 , 3 , and Figure 9, the first telescopic member 10 and the second telescopic member 20 have the same structure. The first telescopic member 10 includes a guide post 105, a first sleeve 101, a second sleeve 102, a third sleeve 103, and a fourth sleeve 104. The lower end of the guide post 105 is fixed on the third substrate 3 and extends toward the first substrate 1. The first sleeve 101 is sleeved on the outer periphery of the guide post 105 and can move relative to the guide post 105 toward the first substrate 1. The second sleeve 102 is sleeved on the outer periphery of the first sleeve 101 and can move relative to the first sleeve 101 toward the first substrate 1. A limiting structure m for preventing the second sleeve 102 from detaching from the first sleeve 101 is provided between the first end of the second sleeve 102 and the first sleeve 101. The third sleeve 103 is sleeved on the outer periphery of the second sleeve 102 and can move relative to the second sleeve 102 toward the first substrate 1. A limiting structure m for restricting the third sleeve 103 from detaching from the second sleeve 102 is provided between the third sleeve 103 and the second sleeve 102. The fourth sleeve 104 is sleeved on the outer periphery of the third sleeve 103 and can axially move, and its first end is connected to the first substrate 1. A limiting structure m for restricting the fourth sleeve 104 from detaching from the third sleeve 103 is provided between the fourth sleeve 104 and the third sleeve 103. The first elastic member 100 and the second elastic member 200 have the same structure. The first elastic member 100 is a linear spring sleeved on the outer periphery of the first telescopic member 10. The first end of the linear spring abuts against the first substrate 1, and the second end abuts against the third substrate 3. The second elastic member 200 is a linear spring sleeved on the outer periphery of the second telescopic member 20. The first end of the linear spring abuts against the third substrate 3, and the second end abuts against the second substrate 2.

[0045] Between the first substrate 1 and the third substrate 3, and between the third substrate 3 and the second substrate 2, there are five gradients of telescopic margins, which can not only provide a larger telescopic amount, but also have better stability between the first substrate 1 and the third substrate 3, and between the third substrate 3 and the second substrate 2 before and after telescoping, so as to avoid shaking and improve the capture accuracy of the suction cup during satellite docking.

[0046] In the contracted state of the first telescopic member 10, the third sleeve 103 is hidden inside the fourth sleeve 104, the second sleeve 102 is hidden inside the third sleeve 103, the first sleeve 101 is hidden inside the second sleeve 102, and the guide post 105 is hidden inside the first sleeve 101, as shown in Figure 5As shown in the figure, a boss 31 is provided on the side of the third substrate 3 facing the first substrate 1, and the boss 31 is arranged around the outer periphery of the guide post 105. A limiting cavity 311 is formed within the boss 31 for receiving the corresponding ends of the respective sleeves. In the extended state of the first telescopic member 10, the first sleeve 101 is located outside the guide post 105 and is limit-connected to the guide post 105 through a limiting structure m. The second sleeve 102 is located outside the first sleeve 101 and is limit-connected to the first sleeve 101 through the limiting structure m. The third sleeve 103 is located outside the second sleeve 102 and is limit-connected to the second sleeve 102 through the limiting structure m. The fourth sleeve 104 is located outside the third sleeve 103 and is limit-connected to the third sleeve 103 through the limiting structure m. The specific structure of the second telescopic member 20 and the connection manner between the second telescopic member 20 and the third substrate 3 and the second substrate 2 are the same as those of the first telescopic member 20 described above. The sleeving manner of the above-mentioned respective sleeves can improve the fitting stability between the first substrate 1 and the second substrate 2 before the satellite launch and when the first telescopic member 10 is in a contracted state. The limiting manner between the above-mentioned respective sleeves can improve the fitting stability between the first substrate 1 and the second substrate 2 when the connecting device is docked with the functional satellite.

[0047] The above-mentioned limiting structure m includes a first limiting boss 71 and a second limiting boss 72. The first limiting boss 71 is provided on the inner wall of the outer sleeve and is arranged close to the third substrate 3. The second limiting boss 72 is provided on the outer wall of the inner sleeve or the guide post and is arranged close to the first substrate 1. In the contracted state of the first telescopic member 10, the first limiting boss 71 and the second limiting boss 72 are relatively far away from each other and are respectively located at both ends of the first telescopic member 10. In the extended state of the first telescopic member 10, the first limiting boss 71 and the second limiting boss 72 are relatively close to each other and are in contact and cooperation. In the contracted state of the first telescopic member 10, the above-mentioned structure will not interfere with the respective components. In the extended state of the first telescopic member 10, the above-mentioned structure can simply and reliably constrain the positions between the respective sleeves and maintain the docking stability between the repaired satellite and the functional satellite.

[0048] In this embodiment, there are three groups of the first telescopic members 10, which are evenly distributed circumferentially between the first substrate 1 and the third substrate 3. Correspondingly, there are also three groups of the first elastic members 100. There are three groups of the second telescopic members 20, which are evenly distributed circumferentially between the second substrate 2 and the third substrate 3. Correspondingly, there are also three groups of the second elastic members 200.

[0049] In this embodiment, for the convenience of assembly and connection, a first fitting 106 for fixing the first end of the fourth sleeve 104 is provided on the first substrate 1, and a second fitting 107 for fixing the first end of the guide post 105 and the first end of the fourth sleeve 104 in the second telescopic assembly 20 is provided on the third substrate 3. The first fitting 106 and the second fitting 107 have the same structure and are both threadedly connected to the corresponding fixed parts.

[0050] Specifically, as Figure 4 shown, the first fitting 106 has a first gasket 1061 that can abut against the lower surface of the first substrate 1. A through hole 1062 that penetrates up and down is formed in the central portion of the first gasket 1061. A first connecting sleeve 1063 that extends upward around the through hole 1062 and has an internal thread is provided at the top of the first gasket 1061. Correspondingly, a connecting hole 11 that can be inserted and connected with the first connecting sleeve 1063 is formed in the first substrate 1. The screw 108 passes through the connecting hole 11 from above the first substrate 1 and is threadedly connected to the internal thread of the first connecting sleeve 1063. A second connecting sleeve 1064 that extends downward around the periphery of the through hole 1062 and has an external thread is provided below the first gasket 1061. The upper port of the fourth sleeve 104 is inserted and connected with the second connecting sleeve 1064. An inner ring thread 1041 that cooperates with the external thread of the second connecting sleeve 1064 for locking is provided on the inner wall surface at the upper end of the fourth sleeve 104. As Figure 5 shown, the second fitting 107 has a second gasket 1071 that can abut against the lower surface of the third substrate 3. A hole 1072 that penetrates up and down is formed in the central portion of the second gasket 1071. A first connecting cylinder 1073 that extends upward around the hole 1072 and has an internal thread is provided at the top of the second gasket 1071. Correspondingly, a fitting hole 33 that can be inserted and connected with the first connecting cylinder 1073 is formed in the third substrate 3. The lower end of the guide post 105 passes through the fitting hole 33 from above the third substrate 3 and is threadedly connected to the internal thread of the first connecting cylinder 1073. A second connecting cylinder 1074 that extends downward around the periphery of the hole 1072 and has an external thread is provided below the second gasket 1071. The upper port of the fourth sleeve 104 in the second telescopic member 20 is inserted and connected with the second connecting cylinder 1074. An inner ring thread that cooperates with the external thread of the second connecting cylinder 1074 for locking is provided on the inner wall surface at the upper end of the fourth sleeve 104. The lower end of the guide post 105 of the second telescopic member 20 is threadedly connected to the second substrate 2.

[0051] With the above structure, the first substrate 1, the first telescopic member 10, the third substrate 3, the second telescopic member 20, and the second substrate 2 are reliably connected through as few and simple connecting members as possible, so as to facilitate operation and reduce costs.

[0052] In this embodiment, as Figure 2 、 10As shown, the first end of the limiting rod 4 is fixedly connected to the central part of the second substrate 2 by threads. The third substrate 3 is annular and has an opening in the center for the limiting rod 4 to pass through. A through hole 12 for the limiting rod 4 to pass through is formed in the central part of the first substrate 1. A protective sleeve 13 extending downward around the through hole 12 is connected below the first substrate 1. In the contracted states of the first telescopic member 10 and the second telescopic member 20, the protective sleeve 13 covers the limiting rod 4 therein. The limiting assembly 5 includes a base body 51, a limiting post 52 and a driving member 53. The base body 51 is disposed on the upper surface of the first substrate 1 and has a slot 511 arranged corresponding to the through hole 12 and the upper end of the limiting rod 4. A plurality of limiting holes 41 are formed in the limiting rod 4 at intervals along the length direction. The driving member 53 can be a motor. The driving member 53 is disposed beside the slot 511 and has an output end arranged towards the slot 511. The limiting post 52 is connected to the output end of the driving member 53 and can be driven by the driving member 53 to pass through the side wall of the slot 511 and insert into or withdraw from the limiting hole 41 of the limiting rod 4.

[0053] As Figure 7 , 8 shown, the top of the suction cup 6 in this embodiment is fixed to the lower surface of the second substrate 2 by screws. In the assembled state, the upper end of the cavity 61 is closed. The suction cup 6 in this embodiment is formed into a frustum-shaped body 64 with an outer diameter gradually increasing from the second substrate 2. Correspondingly, the shape of the cavity 61 conforms to the shape of the body 64. An equilibrium plate 65 capable of automatically balancing to be relatively parallel to the surface of the functional satellite B when contacting the surface of the functional satellite B is provided at the outer end of the body 64. The equilibrium plate 65 and the body 64 are integrally formed and both are rubber parts. A notch 651 communicating the outside with the cavity 61 is formed in the central part of the equilibrium plate 65. The adsorption blocks 63 are six silica gel parts evenly distributed along the circumferential direction on the outer surface of the equilibrium plate 65.

[0054] When using the satellite connection device of this embodiment, the satellite connection device is connected to the repair satellite A. Before the repair satellite A is launched, the driving member 53 drives the limiting post 52 to pass through the limiting hole 41 of the limiting rod 4, so that the first telescopic member 10 and the second telescopic member 20 remain contracted; when the connection device needs to be docked with the functional satellite A, the driving member 53 drives the limiting post 52 to withdraw from the limiting hole 41 of the limiting rod 4, and the first telescopic member 10 and the second telescopic member 20 are extended under the drive of the elastic member, so as to provide a required extension amount and impact force for the satellite connection device, so that the suction cup 6 is ejected to connect the functional satellite B; at the moment when the satellite connection device is docked with the surface of the functional satellite B, there may be a certain angle of inclination between the suction cup 6 and the surface of the functional satellite B, such as Figure 11As shown, the existence of this inclination angle may directly lead to docking failure or affect the reliability of docking. The balance plate 65 provided in this embodiment is annular. When the edge of the balance plate 65 or the edge of the suction attachment 63 thereon first contacts the surface of the functional satellite B, the balance plate 65 made of silicone rubber material will produce buffering due to its own elasticity, causing local elastic deformation of the main body 64. During the process of the main body 64 resetting due to its own elasticity, it drives the satellite connection device to automatically adjust its position relative to the functional satellite B until the balance plate 65 and the above-mentioned suction attachment 63 are substantially parallel to the surface of the functional satellite. At this time, the lower side of the second substrate 2 is also substantially parallel to the surface of the functional satellite B, so that each suction cup 6 on the second substrate 2 can contact the functional satellite B, and the adhesive layer on the surface of each suction attachment 63 is integrally bonded to the surface of the functional satellite B to complete the connection.

[0055] In the description and claims of the present invention, terms indicating directions such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", etc. are used to describe various exemplary structural parts and elements of the present invention. However, these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to the directions opposite to or consistent with the direction of gravity.

Claims

1. A satellite connection device, characterized in that Comprising: A first substrate (1) for connecting to a repair satellite (A) on its first side; A second substrate (2) disposed on the second side of the first substrate (1) so as to be reciprocable relative to the first substrate (1); A third substrate (3) disposed between the first substrate (1) and the second substrate (2) so as to be reciprocable relative to the first substrate (1) and the second substrate (2); A first telescopic member (10) telescopically connected between the first substrate (1) and the third substrate (3); A first elastic member (100) disposed between the first substrate (1) and the third substrate (3) to keep the third substrate (3) always tending to move away from the first substrate (1); A second telescopic member (20) telescopically connected between the third substrate (3) and the second substrate (2); A second elastic member (200) disposed between the third substrate (3) and the second substrate (2) to keep the second substrate (2) always tending to move away from the third substrate (3); A limiting rod (4) having a first end fixedly connected to the second substrate (2) and a second end extending towards the third substrate (3) and the first substrate (1); when the first telescopic member (10) and the second telescopic member (20) are in a compressed state, the limiting rod (4) passes through the third substrate (3) and the first substrate (1) so that its second end is located on the first side of the first substrate (1); when the first telescopic member (10) and the second telescopic member (20) are in an extended state, the limiting rod (4) is released from the first side of the first substrate (1) and is in a free state; A limiting assembly (5) disposed on the first side of the first substrate (1); when the first telescopic member (10) and the second telescopic member (20) are in a compressed state, the limiting assembly (5) is connected to the second end of the limiting rod (4) to limit it, and when the first telescopic member (10) and the second telescopic member (20) are in an extended state, the limiting assembly (5) is disengaged from the limiting rod (4); And A suction cup (6) which is elastic and disposed on the side surface of the second substrate (2) facing away from the first substrate (1) for connecting to a functional satellite (B); the suction cup (6) has a hollow interior forming a cavity (61) with an outer port that can be locally compressed, a pressure balance hole (62) for communicating the inside of the cavity (61) with the outside is opened on the side wall of the suction cup (6), and an adsorption block (63) arranged around the outer port of the cavity (61) is provided on the outer end surface of the suction cup (6), and an adhesive layer capable of bonding to the surface of the functional satellite (B) is coated on the outer surface of the adsorption block (63).

2. The satellite connection device according to claim 1, wherein: The first telescopic member (10) has the same structure as the second telescopic member (20). The first telescopic member (10) includes a guide post (105), a first sleeve (101), and a second sleeve (102). The first end of the guide post (105) is fixed to the third substrate (3) and extends toward the first substrate (1). The first sleeve (101) is sleeved on the outer periphery of the guide post (105) and can move relative to the guide post (105) toward the first substrate (1). The second sleeve (102) is sleeved on the outer periphery of the first sleeve (101) and can move relative to the first sleeve (101) toward the first substrate (1). A limiting structure (m) for preventing the second sleeve (102) from detaching from the first sleeve (101) is provided between the first end of the second sleeve (102) and the first sleeve (101). The second end of the second sleeve (102) is directly or indirectly connected to the first substrate (1). The first elastic member (100) has the same structure as the second elastic member (200). The first elastic member (100) is a linear spring sleeved on the outer periphery of the first telescopic member (10). The first end of the linear spring abuts against the first substrate (1), and the second end abuts against the third substrate (3).

3. The satellite connection device according to claim 2, wherein: The second sleeve (102) is indirectly connected to the first substrate (1). It further includes a third sleeve (103) and a fourth sleeve (104). The third sleeve (103) is sleeved on the outer periphery of the second sleeve (102) and can move relative to the second sleeve (102) toward the first substrate (1). The limiting structure (m) for restricting the third sleeve (103) from detaching from the second sleeve (102) is provided between the third sleeve (103) and the second sleeve (102). The fourth sleeve (104) is sleeved on the outer periphery of the third sleeve (103) and can axially move. Its first end is connected to the first substrate (1). The limiting structure (m) for restricting the fourth sleeve (104) from detaching from the third sleeve (103) is provided between the fourth sleeve (104) and the third sleeve (103).

4. The satellite connection device according to claim 3, wherein: When the first telescopic member (10) is in the contracted state, the third sleeve (103) is hidden within the fourth sleeve (104), the second sleeve (102) is hidden within the third sleeve (103), the first sleeve (101) is hidden within the second sleeve (102), the guide post (105) is hidden within the first sleeve (101), a boss (31) arranged around the outer periphery of the guide post (105) is provided on the side of the third substrate (3) facing the first substrate (1), and a limiting cavity (311) for receiving the corresponding end portions of the sleeves is formed within the boss (31); when the first telescopic member (10) is in the extended state, the first sleeve (101) is located outside the guide post (105) and is limit-connected to the guide post (105) through a limiting structure (m), the second sleeve (102) is located outside the first sleeve (101) and is limit-connected to the first sleeve (101) through the limiting structure (m), the third sleeve (103) is located outside the second sleeve (102) and is limit-connected to the second sleeve (102) through the limiting structure (m), and the fourth sleeve (104) is located outside the third sleeve (103) and is limit-connected to the third sleeve (103) through the limiting structure (m).

5. The satellite connection device according to claim 3, characterized in that: The limiting structure (m) includes a first limiting boss (71) and a second limiting boss (72). The first limiting boss (71) is provided on the inner wall of the outer sleeve and is arranged close to the third substrate (3), and the second limiting boss (72) is provided on the outer wall of the inner sleeve or the guide post (105) and is arranged close to the first substrate (1); when the first telescopic member (10) is in the contracted state, the first limiting boss (71) and the second limiting boss (72) are relatively far away from each other and are respectively located at both ends of the first telescopic member (10), and when the first telescopic member (10) is in the extended state, the first limiting boss (71) and the second limiting boss (72) are relatively close to each other and are in contact and cooperation.

6. The satellite connection device according to claim 3, wherein: A first fitting (106) for fixing the first end of the fourth sleeve (104) is provided on the first substrate (1), and a second fitting (107) for fixing the first end of the guide post (105) and the first end of the fourth sleeve (104) in the second telescopic assembly is provided on the third substrate (3). The first fitting (106) and the second fitting (107) have the same structure and are both thread-connected to the corresponding fixed parts.

7. The satellite connection device according to claim 6, wherein: The first fitting (106) has a first gasket (1061) that can abut against the lower surface of the first substrate (1). A through hole (1062) penetrating up and down is formed in the central portion of the first gasket (1061). A first connecting sleeve (1063) that extends upward around the through hole (1062) and has an internal thread is provided at the top of the first gasket (1061). Correspondingly, a connecting hole (11) that can be inserted and connected with the first connecting sleeve (1063) is formed in the first substrate (1). A screw (108) passes through the connecting hole (11) from above the first substrate (1) and is threadedly connected to the internal thread of the first connecting sleeve (1063). A second connecting sleeve (1064) that extends downward around the periphery of the through hole (1062) and has an external thread is provided below the first gasket (1061). The upper port of the fourth sleeve (104) is inserted and connected with the second connecting sleeve (1064). An inner ring thread that is matched and locked with the external thread of the second connecting sleeve (1064) is provided on the inner wall surface of the upper end of the fourth sleeve (104).

8. The satellite connection device according to claim 7, wherein: The second fitting (107) has a second gasket (1071) that can abut against the lower surface of the third substrate (3). A hole (1072) penetrating up and down is formed in the central portion of the second gasket (1071). A first connecting cylinder (1073) that extends upward around the hole (1072) and has an internal thread is provided at the top of the second gasket (1071). Correspondingly, a fitting hole (33) that can be inserted and connected with the first connecting cylinder (1073) is formed in the third substrate (3). The lower end of the guide post (105) passes through the fitting hole (33) from above the third substrate (3) and is threadedly connected to the internal thread of the first connecting cylinder (1073). A second connecting cylinder (1074) that extends downward around the periphery of the hole (1072) and has an external thread is provided below the second gasket (1071). The upper port of the fourth sleeve (104) in the second telescopic member (20) is inserted and connected with the second connecting cylinder (1074). An inner ring thread that is matched and locked with the external thread of the second connecting cylinder (1074) is provided on the inner wall surface of the upper end of the fourth sleeve (104).

9. The satellite connection device according to any one of claims 1 to 7, characterized in that: The first end of the limiting rod (4) is connected to the central part of the circular second substrate (2). The third substrate (3) is annular and has an opening at the center for the limiting rod (4) to pass through. A through hole (12) for the limiting rod (4) to pass through is formed at the central part of the first substrate (1). The limiting component (5) includes a base body (51), a limiting column (52), and a driving member (53). The base body (51) is arranged on the surface of the first side of the first substrate (1) and has a slot (511) corresponding to the through hole (12) and the second end of the limiting rod (4). A plurality of limiting holes (41) are formed in the limiting rod (4) at intervals along the length direction. The driving member (53) is arranged beside the slot (511) and has an output end facing the slot (511). The limiting column (52) is connected to the output end of the driving member (53) and can be driven by the driving member (53) to pass through the side wall of the slot (511) and insert into or withdraw from the limiting hole (41) of the limiting rod (4).

10. The satellite connection device according to any one of claims 1 to 7, characterized in that: The sucker (6) is formed as a frustum-shaped body (64) with an outer diameter gradually increasing outward from the second substrate (2). Correspondingly, the shape of the cavity (61) conforms to the shape of the body (64). An equilibrium plate (65) that can automatically balance to be relatively parallel to the surface of the functional satellite (B) when it is in contact with the surface of the functional satellite (B) is provided at the outer end of the body (64). The equilibrium plate (65) is integrally formed with the body (64) and both are rubber parts. A notch (651) that communicates the outside with the cavity (61) is formed at the central part of the equilibrium plate (65). The adsorption block (63) is a silica gel part arranged on the outer surface of the equilibrium plate (65).

Images