阅读说明：本技术 卫星帆板展开连接件 (Satellite sailboard unfolding connecting piece ) 是由 郭彤 赵学聪 王丹丹 梁广 于 2020-12-07 设计创作，主要内容包括：本发明提供了一种卫星帆板展开连接件,包括公铰、母铰和连接公铰和母铰的转轴、锁销和锁钩,其中：锁销通过插入两个安装孔贯穿公铰的侧板；母铰的第一母铰侧板内壁具有槽道,所述锁销能够在槽道内滑动；所述槽道的端部具有销孔,锁销具有轴向的压紧力,公铰和母铰之间的相对角度为阈值角度时,锁销能够滑动至槽道的端部插入销孔；锁销插入销孔后,解除对锁钩移动的自由度的限制。(The invention provides a satellite sailboard unfolding connecting piece, which comprises a male hinge, a female hinge, a rotating shaft for connecting the male hinge and the female hinge, a lock pin and a lock hook, wherein: the lock pin penetrates through the side plate of the male hinge by being inserted into the two mounting holes; the inner wall of the first female hinge side plate of the female hinge is provided with a groove, and the lock pin can slide in the groove; the end part of the channel is provided with a pin hole, the lock pin has axial pressing force, and when the relative angle between the male hinge and the female hinge is a threshold angle, the lock pin can slide to the end part of the channel and be inserted into the pin hole; after the lock pin is inserted into the pin hole, the limitation of the freedom degree of movement of the lock hook is removed.)

1. A satellite sailboard unfolding connecting piece is characterized by comprising a male hinge, a female hinge, a rotating shaft, a lock pin and a lock hook, wherein the rotating shaft is used for connecting the male hinge with the female hinge, and the lock pin and the lock hook are arranged on the male hinge and the female hinge, wherein:

the lock pin penetrates through the side plate of the male hinge by being inserted into the two mounting holes;

the inner wall of the first female hinge side plate of the female hinge is provided with a groove, and the lock pin can slide in the groove;

the end part of the channel is provided with a pin hole, the lock pin has axial pressing force, and when the relative angle between the male hinge and the female hinge is a threshold angle, the lock pin can slide to the end part of the channel and be inserted into the pin hole;

after the lock pin is inserted into the pin hole, the limitation of the freedom degree of movement of the lock hook is removed.

2. The satellite windsurfing board deployment link of claim 1 wherein,

the female hinge is configured to be fixedly connected with the satellite body;

the male hinge is configured to be fixedly connected with the outer plate;

the latch hook is configured to be fixedly connected with the inner plate;

the female hinge and the male hinge can rotate relatively between threshold angles by taking the first direction as an axis, the expansion torsion spring sleeve is arranged on the outer surface of the rotating shaft, the expansion torsion spring provides driving torque for the relative rotation of the male hinge and the female hinge, and the outer plate is far away from the satellite body when the male hinge and the female hinge rotate relatively.

3. The satellite windsurfing board deployment link of claim 2 wherein,

a pressure spring is sleeved outside the lock pin and provides axial pressing force for the lock pin so that the lock pin moves towards the first end part along the axial direction;

the adjusting nut adjusts the pressing force provided by the pressure spring to the lock pin.

4. A satellite windsurfing board deployment link according to claim 3,

the lock hook comprises a fixed rod and a hook-shaped structure positioned at the top end of the fixed rod, and the fixed rod is fixedly connected with the inner plate through a bolt;

the first end of the lock pin is conical, the second end of the lock pin is a column section, and the column section is inserted into the hook-shaped structure, so that the second end limits the freedom degree of radial movement of the lock hook;

the inner wall of the first female hinge side plate is provided with a channel which does not penetrate through the first female hinge side plate, and the first end part slides in the channel;

and the end part of the channel is provided with a pin hole, and when the relative angle between the first connecting piece and the second connecting piece is a threshold angle, the first end part slides to the end part of the channel and is inserted into the pin hole under the pressing force provided by the pressure spring.

5. A satellite windsurfing board deployment link as defined in claim 3, further comprising a bushing, wherein:

the bush is the ring cylinder, and the cover is established between pivot and expansion torsional spring, the tip of bush has annular boss structure, and annular boss structure restriction expandes the axial displacement of torsional spring.

6. A satellite windsurfing board deployment link as defined in claim 3, further comprising a stop and a microswitch, wherein:

the stop block is positioned on the first male hinge side plate;

the micro switch is arranged on the outer wall of the second female hinge side plate and comprises a contact and a spring piece;

when the relative angle between the first connecting piece and the second connecting piece is a threshold angle, the stop block applies pressure to the spring piece to enable the spring piece to be in contact with the contact, so that current flows between the spring piece and the contact to form a position arrival signal.

7. A satellite windsurfing board deployment attachment as claimed in claim 3, wherein said satellite windsurfing board deployment attachment is for use in a satellite windsurfing board deployment device, said satellite windsurfing board deployment device comprising two pairs of cooperating male and female hinges and a locking hook;

the satellite windsurfing board deployment device further comprises:

and an inter-plate hinge configured to connect the outer plate and the inner plate and rotate the outer plate and the inner plate about the second direction.

8. The satellite windsurfing board deployment coupler of claim 7 wherein said inter-board hinges comprise inter-board male hinges, inter-board female hinges and inter-board deployment torsion springs, wherein

One of the inter-plate male hinges or the inter-plate female hinges is fixedly connected with the outer plate, the other one of the inter-plate male hinges or the inter-plate female hinges is fixedly connected with the inner plate, and the outer plate and the inner plate are driven by the inter-plate hinges to rotate relatively.

9. The satellite windsurfing board deployment connector of claim 8 wherein in a launched state, the inner and outer panels are attached to one side of the satellite body;

one side of each outer plate is provided with 2 satellite sailboard unfolding connecting pieces consisting of male hinges, female hinges, rotating shafts and unfolding torsion springs;

the satellite sailboard unfolding connecting piece is simultaneously connected with the satellite body and the outer board and drives the satellite body and the outer board to be unfolded with the unfolding stroke of 90 degrees;

2 inter-plate hinges are arranged on the other side of each outer plate, and the inter-plate hinges are connected with the outer plates and the inner plates simultaneously to drive the outer plates and the inner plates to be unfolded for 180 degrees of unfolding stroke;

the inner plate and the outer plate are tightly pressed on the side surface of the satellite body through a pressing device;

and the inner plate is provided with a lock hook which is matched with the male hinge and the female hinge to complete secondary unfolding of the sailboard.

10. A satellite windsurfing board deployment coupler according to claim 9 wherein after the satellite has started the windsurfing board deployment, the windsurfing board clamping device is released from clamping restriction and the male and female hinges begin to deploy;

because the lock hook is hooked on the column section of the lock pin, the expansion of the inner plate and the outer plate is limited and cannot rotate relatively, and the inner plate and the outer plate rotate around the axis of the male hinge and the axis of the female hinge integrally, so that the collision between the inner plate and the satellite body is avoided;

the male hinge and the female hinge drive the inner sailboard plate and the outer sailboard plate to be unfolded together;

the head of the lock pin is provided with a conical section, the pressure spring provides pressure for the lock pin, and the lock pin moves in the female hinge channel in the process of unfolding the male hinge and the female hinge; after the male hinge and the female hinge rotate in place, the taper section of the lock pin is inserted into the pin hole of the female hinge under the driving of the pressure spring, and the first unfolding and the locking of the outer plate are completed;

the lock pin is inserted into the pin hole of the female hinge and is not contacted with the lock hook any more, the rotation limitation between the inner plate and the outer plate is removed, and the inner plate begins to unfold under the torque drive of the hinges between the plates;

after the sailboard is completely unfolded, the outer board is parallel to the inner board and is perpendicular to the initial mounting surface.

Technical Field

The invention relates to the technical field of satellite sailboard unfolding, in particular to a satellite sailboard unfolding connecting piece.

Background

A solar cell panel is a device that converts solar energy into electrical energy. Almost all spacecraft use solar energy as a main energy source, and in order to make the spacecraft work for a long time, the solar cell sailboards must be unfolded, so that the solar sailboard unfolding mechanism is very important in the field of aerospace.

The existing solar cell sailboard unfolding mechanism has the disadvantages of complex structure, large volume of unfolding and locking parts of sailboards, high quality and complex structure, increased system weight and use space requirements and resource and space waste. And the assembly difficulty of the unfolding part and the locking part is higher during assembly, larger deformation is easily generated due to the influence of the environment during working, and the reliability of the product is reduced.

In addition, in order to obtain as much energy as possible, the expansion area of the solar sailboard should be as large as possible, but the expansion area is limited by satellite carrying. For the condition that a plurality of sailboards are unfolded, in order to avoid collision among the sailboards, how to utilize the unfolding hinge mechanism with a simple structure to sequentially unfold the sailboards, and improve the safety and reliability is a technical problem in the field.

Disclosure of Invention

The invention aims to provide a satellite sailboard unfolding connecting piece to solve the problem of how to realize the repeated unfolding of a satellite sailboard.

In order to solve the technical problem, the invention provides a satellite sailboard unfolding connecting piece, which comprises a male hinge, a female hinge, a rotating shaft, a lock pin and a lock hook, wherein the rotating shaft, the lock pin and the lock hook are used for connecting the male hinge and the female hinge, and the satellite sailboard unfolding connecting piece comprises:

the lock pin penetrates through the side plate of the male hinge by being inserted into the two mounting holes;

the inner wall of the first female hinge side plate of the female hinge is provided with a groove, and the lock pin can slide in the groove;

the end part of the channel is provided with a pin hole, the lock pin has axial pressing force, and when the relative angle between the male hinge and the female hinge is a threshold angle, the lock pin can slide to the end part of the channel and be inserted into the pin hole;

after the lock pin is inserted into the pin hole, the limitation of the freedom degree of movement of the lock hook is removed.

Alternatively, in the satellite windsurfing board deployment attachment,

the female hinge is configured to be fixedly connected with the satellite body;

the male hinge is configured to be fixedly connected with the outer plate;

the latch hook is configured to be fixedly connected with the inner plate;

the female hinge and the male hinge can rotate relatively between threshold angles by taking the first direction as an axis, the expansion torsion spring sleeve is arranged on the outer surface of the rotating shaft, the expansion torsion spring provides driving torque for the relative rotation of the male hinge and the female hinge, and the outer plate is far away from the satellite body when the male hinge and the female hinge rotate relatively.

Alternatively, in the satellite windsurfing board deployment attachment,

a pressure spring is sleeved outside the lock pin and provides axial pressing force for the lock pin so that the lock pin moves towards the first end part along the axial direction;

the adjusting nut adjusts the pressing force provided by the pressure spring to the lock pin.

Alternatively, in the satellite windsurfing board deployment attachment,

the lock hook comprises a fixed rod and a hook-shaped structure positioned at the top end of the fixed rod, and the fixed rod is fixedly connected with the inner plate through a bolt;

the first end of the lock pin is conical, the second end of the lock pin is a column section, and the column section is inserted into the hook-shaped structure, so that the second end limits the freedom degree of radial movement of the lock hook;

the inner wall of the first female hinge side plate is provided with a channel which does not penetrate through the first female hinge side plate, and the first end part slides in the channel;

and the end part of the channel is provided with a pin hole, and when the relative angle between the first connecting piece and the second connecting piece is a threshold angle, the first end part slides to the end part of the channel and is inserted into the pin hole under the pressing force provided by the pressure spring.

Optionally, in the satellite windsurfing board deployment link, the satellite windsurfing board deployment link further comprises a bushing, wherein:

the bush is the ring cylinder, and the cover is established between pivot and expansion torsional spring, the tip of bush has annular boss structure, and annular boss structure restriction expandes the axial displacement of torsional spring.

Optionally, in the satellite windsurfing board unfolding connecting piece, the satellite windsurfing board unfolding connecting piece further includes a stopper and a microswitch, wherein:

the stop block is positioned on the first male hinge side plate;

the micro switch is arranged on the outer wall of the second female hinge side plate and comprises a contact and a spring piece;

when the relative angle between the first connecting piece and the second connecting piece is a threshold angle, the stop block applies pressure to the spring piece to enable the spring piece to be in contact with the contact, so that current flows between the spring piece and the contact to form a position arrival signal.

Optionally, in the satellite sailboard unfolding connector, the satellite sailboard unfolding connector is used in a satellite sailboard unfolding device, and the satellite sailboard unfolding device includes two pairs of matched male and female hinges and a locking hook;

the satellite windsurfing board deployment device further comprises:

and an inter-plate hinge configured to connect the outer plate and the inner plate and rotate the outer plate and the inner plate about the second direction.

Optionally, in the satellite sailboard unfolding connecting piece, the inter-board hinge comprises an inter-board male hinge, an inter-board female hinge and an inter-board unfolding torsion spring, wherein

One of the inter-plate male hinges or the inter-plate female hinges is fixedly connected with the outer plate, the other one of the inter-plate male hinges or the inter-plate female hinges is fixedly connected with the inner plate, and the outer plate and the inner plate are driven by the inter-plate hinges to rotate relatively.

Optionally, in the satellite sailboard unfolding connecting piece, when in a launching state, the inner plate and the outer plate are attached to one side surface of the satellite body;

one side of each outer plate is provided with 2 satellite sailboard unfolding connecting pieces consisting of male hinges, female hinges, rotating shafts and unfolding torsion springs;

the satellite sailboard unfolding connecting piece is simultaneously connected with the satellite body and the outer board and drives the satellite body and the outer board to be unfolded with the unfolding stroke of 90 degrees;

2 inter-plate hinges are arranged on the other side of each outer plate, and the inter-plate hinges are connected with the outer plates and the inner plates simultaneously to drive the outer plates and the inner plates to be unfolded for 180 degrees of unfolding stroke;

the inner plate and the outer plate are tightly pressed on the side surface of the satellite body through a pressing device;

and the inner plate is provided with a lock hook which is matched with the male hinge and the female hinge to complete secondary unfolding of the sailboard.

Optionally, in the satellite sailboard unfolding connecting piece, after the satellite begins to unfold the sailboard, the sailboard pressing device releases the pressing limitation, and the male hinge and the female hinge begin to unfold;

because the lock hook is hooked on the column section of the lock pin, the expansion of the inner plate and the outer plate is limited and cannot rotate relatively, and the inner plate and the outer plate rotate around the axis of the male hinge and the axis of the female hinge integrally, so that the collision between the inner plate and the satellite body is avoided;

the male hinge and the female hinge drive the inner sailboard plate and the outer sailboard plate to be unfolded together;

the head of the lock pin is provided with a conical section, the pressure spring provides pressure for the lock pin, and the lock pin moves in the female hinge channel in the process of unfolding the male hinge and the female hinge; after the male hinge and the female hinge rotate in place, the taper section of the lock pin is inserted into the pin hole of the female hinge under the driving of the pressure spring, and the first unfolding and the locking of the outer plate are completed;

the lock pin is inserted into the pin hole of the female hinge and is not contacted with the lock hook any more, the rotation limitation between the inner plate and the outer plate is removed, and the inner plate begins to unfold under the torque drive of the hinges between the plates;

after the sailboard is completely unfolded, the outer board is parallel to the inner board and is perpendicular to the initial mounting surface.

In the satellite sailboard unfolding connecting piece provided by the invention, when the relative angle between the male hinge and the female hinge is a threshold angle, the lock pin can slide to the end part of the channel and be inserted into the pin hole; after the lock pin is inserted into the pin hole, the limitation on the freedom degree of the movement of the lock hook is removed, and the limitation and the removal of the freedom degree before and after the threshold angle are converted, so that the following effects can be realized: after the satellite starts to unfold the sailboard, the sailboard pressing device releases the pressing limit to unfold. Because the degree of freedom of latch hook is restricted, unable relative rotation between the sailboard that the secondary expansion could separate, both can wholly revolve around the axis of the object of once expanding together, have avoided the collision of sailboard and satellite body.

In the satellite sailboard unfolding connecting piece provided by the invention, the male hinge and the female hinge are connected through the rotating shaft and can relatively rotate between threshold angles by taking a first direction as an axis until the relative angle between the male hinge and the female hinge is the threshold angle, and the latch hook is separated from the male hinge; the outer plate and the inner plate are connected between the plates, and the outer plate and the inner plate rotate around the second direction as an axis, so that a plurality of unfolded objects are sequentially unfolded, the unfolded area is not limited by satellite delivery, collision among sailboards is avoided under the condition that a plurality of sailboards are unfolded, and the structure is simple, safe and reliable.

Drawings

FIG. 1 is an undeployed view of a satellite windsurfing board deployment attachment according to an embodiment of the present invention;

FIG. 2 is a three-dimensional schematic view of a satellite windsurfing board deployment connector element according to an embodiment of the present invention;

FIG. 3 is a schematic elevation view of a satellite windsurfing board deployment connector part according to an embodiment of the present invention;

FIG. 4 is a schematic view of a satellite windsurfing board deployment connector locking pin according to an embodiment of the present invention;

FIG. 5 is a schematic view of a first deployment of a satellite windsurfing board deployment attachment in accordance with an embodiment of the present invention;

FIG. 6 is a schematic illustration of a satellite windsurfing board deployment link shown disengaged from a third link according to an embodiment of the present invention;

FIG. 7 is a schematic view of a second deployment of a satellite windsurfing board deployment attachment in accordance with an embodiment of the present invention;

FIG. 8 is a schematic view of a microswitch for a satellite windsurfing board deployment linkage according to one embodiment of the present invention;

shown in the figure: 1-first connector/female hinge; 2-second connector/male hinge; 3-third connector/latch hook; 4-fourth connection/inter-panel hinge; 5-a first unfolded object/satellite body; 6-second expanded object/outer panel; 7-third expansion object/inner panel; 8-a rotating shaft; 9-unwinding the torsion spring; 10-mounting holes; 11-a locking pin; 12-a pressure spring; 13-adjusting the nut; 15-a clamping interface; 16-a first female hinge side panel; 17-a channel; 18-pin holes; 19-a second female hinge side plate; 20-a stopper; 21-a microswitch; 22-a liner; 23-a first male hinged side panel; 24-a spring leaf; 25-double nut.

Detailed Description

The satellite windsurfing board deployment linkage according to the present invention is described in further detail below with reference to the accompanying drawings and embodiments. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.

Furthermore, features from different embodiments of the invention may be combined with each other, unless otherwise indicated. For example, a feature of the second embodiment may be substituted for a corresponding or functionally equivalent or similar feature of the first embodiment, and the resulting embodiments are likewise within the scope of the disclosure or recitation of the present application.

The core idea of the invention is to provide a satellite sailboard unfolding connecting piece so as to solve the problem of how to realize the repeated unfolding of the satellite sailboard.

To achieve the above idea, the present invention provides a satellite windsurfing board unfolding connector, comprising: a first connector configured to be fixedly connected with a first unfolded object; a second connector configured to be fixedly connected with a second deployment object; a third connector configured to be fixedly connected with a third deployment object; the first connecting piece and the second connecting piece are connected through a rotating shaft, and can relatively rotate between threshold angles by taking a first direction as an axis; the third connecting piece is fixedly connected with the second connecting piece until the relative angle between the first connecting piece and the second connecting piece is a threshold angle, and the third connecting piece is separated from the second connecting piece; and the fourth connecting piece is configured to connect the second unfolding object and the third unfolding object and enable the second unfolding object and the third unfolding object to rotate by taking the second direction as an axis.

The present embodiment provides a satellite windsurfing board unfolding connector, as shown in fig. 1 to 7, including: a first link 1 configured to be fixedly connected with a first development object 5; a second link 2 configured to be fixedly connected with a second deployment object 6; a third link 3 configured to be fixedly connected with a third development object 7; the first connecting piece 1 is connected with the second connecting piece 2 through a rotating shaft 8, and the first connecting piece 1 and the second connecting piece 2 can rotate relatively between threshold angles by taking a first direction as an axis; the third connecting piece 3 is fixedly connected with the second connecting piece 2 until the relative angle between the first connecting piece 1 and the second connecting piece 2 is a threshold angle, and the third connecting piece 3 is separated from the second connecting piece 2; and a fourth link 4 configured to connect the second and third objects to be developed 6 and 7 and rotate the second and third objects to be developed 6 and 7 about the second direction.

In an embodiment of the present invention, in the satellite sailboard unfolding connecting piece, the first connecting piece 1 is a female hinge 1, the second connecting piece 2 is a male hinge 2, the first unfolding object 5 is a satellite body 5, and the second unfolding object 6 is an outer plate 6; the unfolding torsion spring 9 is sleeved on the outer surface of the rotating shaft 8, and the unfolding torsion spring 9 provides driving torque for relative rotation of the male hinge 2 and the female hinge 1; when the male hinge 2 and the female hinge 1 rotate relatively, the outer plate 6 is far away from the satellite body 5.

In one embodiment of the invention, in the satellite sailboard unfolding connecting piece, two side plates of the male hinge 2 are respectively provided with a mounting hole 10 which is opposite to each other; the satellite sailboard unfolding connector also comprises a lock pin 11 penetrating through the male hinge 2 by being inserted into the two mounting holes 10, a pressure spring 12 is sleeved outside the lock pin 11, and the pressure spring 12 provides axial pressing force for the lock pin 11 so that the lock pin 11 moves towards the first end part along the axial direction; the adjusting nut 13 adjusts the pressing force of the compression spring 12 to the lock pin 11. In the satellite sailboard unfolding connecting piece, the third connecting piece 3 is a locking hook 3, and the third unfolding object 7 is an inner plate 7; the lock hook 3 comprises a fixed rod and a hook-shaped structure positioned at the top end of the fixed rod, and the fixed rod is fixedly connected with the inner plate 7 through a bolt; as shown in fig. 4, the first end 111 of the lock pin 11 is tapered, and the second end 112 is a column segment inserted into the hook structure, so that the second end 112 limits the freedom of radial movement of the lock hook; the inner wall of the first female hinge side plate 16 is provided with a channel 17 which does not penetrate through the first female hinge side plate, and the first end part 111 slides in the channel 17; as shown in fig. 6, the end of the channel 17 has a pin hole 18, and when the relative angle between the first connector 1 and the second connector 2 is a threshold angle, the first end 111 slides to the end of the channel 17 and is inserted into the pin hole 18 under the pressing force provided by the compression spring 12.

In one embodiment of the invention, in the satellite windsurfing board deployment link, the satellite windsurfing board deployment link further comprises a bushing 22, wherein: the bush 22 is a circular cylinder, and is sleeved between the rotating shaft 8 and the unfolding torsion spring 9, the end part of the bush 22 is provided with an annular boss structure, and the annular boss structure limits the axial movement of the unfolding torsion spring 9.

In one embodiment of the present invention, in the satellite windsurfing board deployment link, the satellite windsurfing board deployment link further comprises a stopper 20 and a microswitch 21, wherein: the stop 20 is positioned on the first male hinge side plate 23; as shown in fig. 8, the micro switch 21 is disposed on the outer wall of the second female hinge side plate 19, and includes a contact and a spring plate 24; when the relative angle between the first connecting piece 1 and the second connecting piece 2 is a threshold angle, the stopper 20 applies pressure to the spring piece 24 to make the spring piece 24 contact with the contact, so that current flows between the spring piece 24 and the contact to form a position arrival signal.

In an embodiment of the invention, in the satellite sailboard unfolding connecting piece, the fourth connecting piece 4 is an inter-board hinge 4, the inter-board hinge 4 includes a male hinge, a female hinge and an unfolding torsion spring, one of the male hinge or the female hinge is fixedly connected with an outer board 6, the other one of the male hinge or the female hinge is fixedly connected with an inner board 7, and the outer board 6 and the inner board 7 are driven by the inter-board hinge 4 to rotate relatively.

In one embodiment of the invention, in said satellite windsurfing board deployment linkage, said threshold angle is 180 °.

In the satellite sailboard unfolding connecting piece provided by the invention, the first connecting piece 1 and the second connecting piece 2 are connected through the rotating shaft 8 and can relatively rotate between threshold angles by taking a first direction as an axis until the relative angle between the first connecting piece 1 and the second connecting piece 2 is the threshold angle, and the third connecting piece 3 is separated from the second connecting piece 2; the fourth connecting piece 4 is connected with the second unfolding object 6 and the third unfolding object 7, and the second unfolding object 6 and the third unfolding object 7 rotate around the second direction as an axis, so that the multiple unfolding objects are sequentially unfolded, the unfolding area is not limited by satellite carrying, collision among the sailboards is avoided under the condition that multiple sailboards are unfolded, and the structure is simple, safe and reliable.

As shown in fig. 1. In the launching state, the inner and outer windsurfing boards 7 and 6 are attached to one side surface of the satellite body 5. 1-3, preferably 2 secondary unfolding hinge mechanisms (composed of a male hinge, a female hinge, a rotating shaft and an unfolding torsion spring) are arranged on one side of the sailboard, and the secondary unfolding hinge mechanisms are simultaneously connected with the satellite body 5 and the sailboard outer board 6 and drive the two to unfold for an unfolding stroke of 90 degrees. 1-3, preferably 2 inter-plate hinges 4 are arranged on the other side, and the inter-plate hinges 4 are simultaneously connected with the outer sailboard plate 6 and the inner sailboard plate 7 to drive the outer sailboard plate and the inner sailboard plate to be unfolded for 180 degrees of unfolding stroke. The inner sailboard plate 7 and the outer sailboard plate 6 are pressed on the side face of the satellite body 5 through a pressing device. And the locking hook 3 is arranged on the inner sailboard plate 7 and matched with the secondary unfolding hinge to finish secondary unfolding of the sailboard.

As shown in fig. 2. The secondary unfolding hinge mechanism comprises a male hinge 2, a female hinge 1, a rotating shaft 8, a locking hook 3, an unfolding torsion spring 9, a pressure spring 12, a locking pin 11, a lining 22 and the like. The male hinge 2 is connected with the satellite body 5 through 4 screws, the female hinge 1 is connected with the windsurfing board outer plate 6 through 4 screws, and the screw specifications are M2-M4, preferably M3. The male hinge 2 and the female hinge 1 are made of aluminum alloy, and 2A12, 2A14, Al6061, Al7075 and the like can be selected. The rotating shaft 8 penetrates through the middle of the male hinge 2 and the female hinge 1, and the rotating motion between the male hinge 2 and the female hinge 1 is realized. The material of the rotating shaft 8 is preferably titanium alloy TC4R with the diameterThe tail M5 is threaded. The unfolding torsion spring 9 provides unfolding driving torque of the sailboard, and the design material is 304 stainless steel with a medium diameterWire diameterThe initial power torque of the unfolding is designed to be 0.6N.m, the moment of the working end is designed to be 0.3N.m, and the gear is not opened. A pressure spring 12 is sleeved outside the lock pin 11 and is a cylindrical spring with a middle diameterWire diameterThe initial pressure 20N is designed and the end of work pressure 12N. One end of the pressure spring 12 is provided with an adjusting nut 13, and the pressure can be adjusted according to the actual conditions. The female hinge 1 is provided with a position for installing a micro switch 21 for giving a signal indication of unfolding in place. The male hinge 2 is provided with a stop block 20 which plays a role in protecting and limiting after the hinge is unfolded in place, and the hinge is prevented from rotating to exceed a designed position.

After the satellite starts to unfold the sailboard, the sailboard pressing device releases the pressing limitation, and the secondary unfolding hinge starts to unfold. Because the latch hook 3 hooks in the column section (joint interface 15, joint interface 15 is one or several of slot structure, platform restriction rotating-structure, through-hole limit structure) of lockpin 11, the expansion of sailboard inner panel 7 and planking 6 receives the restriction, unable relative rotation, and both do the whole and revolve around the axis of secondary expansion hinge together, have avoided the collision of sailboard inner panel 7 with satellite body 5.

The secondary unfolding hinge drives the inner sailboard plate 7 and the outer sailboard plate 6 to be unfolded together. The head of the lock pin 11 is provided with a conical section, the pressure spring 12 provides pressure for the lock pin 11, and the lock pin 11 moves in the channel 17 of the female hinge 1 in the unfolding process of the secondary unfolding hinge. After the secondary unfolding hinge rotates to the right position, the tapered section of the lock pin 11 is driven by the pressure spring 12 to be inserted into the pin hole 18 of the female hinge 1, the primary unfolding is completed, namely the locking of the sailboard outer plate 6, and the overall form is shown in fig. 5.

Fig. 3 is a schematic sectional view of the hinge mechanism at the hinge shaft 8 of the second-spread hinge mechanism. The rotating shaft 8 is in clearance fit with an inner hole at one side of the female hinge 1, and a T-shaped bushing 22 is arranged in the middle of the other side of the female hinge. The tail thread of the rotating shaft 8 is pressed tightly and prevented from loosening through a double nut 25. T-shaped bushings 22 are arranged between the rotating shaft 8 and inner holes on two sides of the male hinge 2. The torsion spring is internally designed with a bushing 22 to restrain the torsion spring against deflection.

Fig. 4 shows the design of the latch 11 in the double-unfolding hinge mechanism. Designed diameter of secondary expansion column sectionPreference is given toThe lining 22, the pin hole 18 of the female hinge 1 and the surface of the lock pin 11 are sputtered with molybdenum disulfide coating to reduce the friction resistance in movement and prevent the vacuum cold welding.

FIG. 5 is a schematic view of the deployment of the secondary deployment hinge in place and the windsurfing board completing the primary deployment. At this time, the angle between the inner sailboard plate 7 and the outer sailboard plate 6 is not changed, and the secondary unfolding hinge is unfolded by 90 degrees.

FIG. 6 shows details of the secondary deployment hinge when the windsurfing board has completed the first deployment. The hinge lock hook 3 is inserted into the pin hole 18 of the female hinge 1, the lock pin 11 is not in contact with the lock hook 3 any more, and the rotation restriction between the inner windsurfing board 7 and the inner windsurfing board 7 is released. The windsurfing board inner board 7 starts to unfold under the torque driving of the inter-board hinge 4.

FIG. 7 shows the windsurfing board in a fully unfolded condition. After the sailboard is completely unfolded, the outer sailboard plate 6 is parallel to the inner sailboard plate 7 and is perpendicular to the initial mounting surface.

In summary, the above embodiments describe the different configurations of the unfolding connector for satellite sailboards in detail, and it is understood that the present invention includes, but is not limited to, the configurations listed in the above embodiments, and any modifications based on the configurations provided by the above embodiments are within the scope of the present invention. One skilled in the art can take the contents of the above embodiments to take a counter-measure.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the system disclosed by the embodiment, the description is relatively simple because the system corresponds to the method disclosed by the embodiment, and the relevant points can be referred to the method part for description.

The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims.