Liquid rocket propellant release device

Abstract

The application discloses a liquid rocket traction release device, which comprises a fixing structure, a pressing device and a first rotating shaft, the fixing structure and the pressing device are connected through the first rotating shaft, the bottom of the fixing structure is fixedly connected with a launching platform, the top of the fixing structure is provided with a first accommodating space, the upper part of the pressing device is in abutment with a rocket foot to lock the rocket foot, the lower part of the pressing device can rotate circumferentially along the surface of the first rotating shaft, the weight of the pressing device on the side close to the rocket foot is smaller than the weight of the pressing device on the side far from the rocket foot, the pressing device comprises a pressing head, a connecting assembly, a first driving device, a second rotating shaft and a first shell body with a second accommodating space, the upper end of the pressing head is used for abutting with the rocket foot, the lower end of the pressing head on the side far from the rocket foot is connected with the output end of the connecting assembly, and the input end of the connecting assembly is connected with the output end of the first driving device. The device can simplify a control system, improve structural safety and reliability and greatly save cost.

Description

Technical Field

[0001] This invention relates to the field of aerospace technology, and in particular to a liquid rocket traction release device. Background Technology

[0002] With the rapid development of the aerospace industry, various technologies involved in the rocket field have also made leaps and bounds. To carry more payloads into space, large launch vehicles are needed. To increase thrust, large launch vehicles mostly employ a multi-engine, side-by-side arrangement. To ensure safe flight, a traction release device is required. This device releases the rocket only after all engines have started normally following ignition. Therefore, after ignition, the rocket body must be restrained first, and the restraint mechanism is only released after confirming that all engines are functioning correctly. This ensures safe flight, making rocket restraint release technology crucial. Currently, domestic restraint release mechanisms all use at least two sets of hydraulic cylinder systems to control the restraint and backward tilting functions. This results in a large size and complex hydraulic system, making installation difficult for operators. Furthermore, the complexity of the entire device increases the probability of errors and significantly increases construction costs.

[0003] There is an urgent need to provide a liquid rocket traction release device that can simplify the control system, facilitate installation and operation, improve structural safety and reliability, and greatly reduce costs. Summary of the Invention

[0004] The purpose of this invention is to provide a liquid rocket traction release device. This device simplifies the control system, facilitates installation and operation, improves structural safety and reliability, and significantly reduces costs, thus laying the foundation for safe rocket launch.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: One aspect of the present invention provides a liquid rocket traction and release device, comprising a plurality of traction and release mechanisms disposed on the surface of a launch platform and used for locking the rocket's foot. Each traction and release mechanism includes at least a fixing structure, a clamping device, and a first rotating shaft. The fixing structure and the clamping device are connected via the first rotating shaft. The bottom of the fixing structure is fixedly connected to the launch platform, and the top is provided with a first receiving space for accommodating the clamping device. The upper part of the clamping device abuts against the rocket's foot to lock it, and the lower part is circumferentially rotatable along the surface of the first rotating shaft. The weight of the clamping device on the side closer to the rocket's foot is less than the weight of the clamping device on the side farther from the rocket's foot. The clamping device includes a pressure head, a connecting assembly, a first driving device, a second rotating shaft, and a first housing containing a second accommodating space. The pressure head, the connecting assembly, and the first driving device are all located inside the second accommodating space. The upper end of the pressure head is used to abut against the rocket's foot. The lower end of the pressure head near the rocket's foot is fixed inside the first housing via the second rotating shaft, and the pressure head can rotate circumferentially along the surface of the second rotating shaft. The lower end of the pressure head away from the rocket's foot is connected to the output end of the connecting assembly, and the input end of the connecting assembly is connected to the output end of the first driving device. The first driving device retracts along the direction perpendicular to the rocket axis to drive the connecting assembly to rotate the lower end of the pressure head along the second rotation axis, thereby causing the upper end of the pressure head to move away from the rocket foot, so that the entire clamping device rotates circumferentially along the first rotation axis and falls into the first receiving space, thus completing the release of the rocket foot.

[0006] Furthermore, the fixed structure includes a second housing and a second driving device. The second housing includes a first receiving housing containing a first movable space and a second receiving housing containing a second movable space. The second receiving housing is located on the upper part of the first receiving housing on the side away from the rocket foot. The lower part of the first receiving housing is used for fixed connection with the launch platform. The upper part of the first receiving housing is connected to the lower part of the second receiving housing. The upper part of the second receiving housing extends away from the first receiving housing. The first movable space and the second movable space are interconnected to form the first accommodating space.

[0007] Furthermore, the outer wall of the first receiving housing on the side away from the rocket's foot is provided with a locking port and a locking mechanism. The locking mechanism includes the third rotating shaft and a locking member. One end of the locking member is fixed to the first receiving housing via the third rotating shaft and can rotate circumferentially along the third rotating shaft. The other end of the locking member is used to pass through the locking port and abut against the pressing device to fix the pressing device in the first receiving space.

[0008] Furthermore, the second housing is provided with a horizontal sliding guide groove at the end away from the first housing. One end of the horizontal sliding guide groove is a closed structure, and the other end is an open structure, with the opening of the open structure facing the rocket foot side.

[0009] Furthermore, the second driving device is located inside the first housing, and one end of the second driving device is fixedly connected to the first housing via a fourth rotating shaft, while the other end is used to abut against the bottom of the first housing to drive the first housing to rotate circumferentially along the first rotating shaft.

[0010] Furthermore, the second driving device includes a hydraulic cylinder and a support member. The telescopic end of the hydraulic cylinder is connected to the support member via a fifth rotating shaft, and the support member can rotate along the surface of the fifth rotating shaft. The support member has an obtuse triangle shape, with the obtuse end connected to the telescopic end of the hydraulic cylinder. The first acute angle end corresponding to the long side is used to abut against the outer wall of the bottom of the first housing, and the second acute angle end corresponding to the short side is fixed to the side wall of the first receiving housing via a sixth rotating shaft.

[0011] Furthermore, the pressure head is roughly L-shaped, with the upper part of the pressure head that abuts against the rocket foot being a convex curved surface. The end of the pressure head away from the rocket foot is provided with two rotating holes, and the part of the pressure head located between the two rotating holes is provided with an upper concave portion.

[0012] Furthermore, the connecting assembly includes a first connector, a second connector, a third connector, a fourth connector, a seventh rotating shaft, an eighth rotating shaft, a ninth rotating shaft, a tenth rotating shaft, an eleventh rotating shaft, and a twelfth rotating shaft. The output end of the first connector is connected to the pressure head via the seventh rotating shaft; the input end of the first connector is connected to the output end of the second connector via the eighth rotating shaft; the fixed end of the second connector is connected to the first housing via the ninth rotating shaft; the input end of the second connector is connected to the output end of the third connector via the tenth rotating shaft; the input end of the third connector is connected to the output end of the fourth connector via the eleventh rotating shaft; and the input end of the fourth connector is connected to the output end of the first driving device via the twelfth rotating shaft. The first driving device is a hydraulic cylinder structure, and the hydraulic cylinder structure is fixed within the first housing by a fixing block.

[0013] Furthermore, the first housing is a closed structure with an opening at one end. The first housing has a first protrusion for supporting the rocket foot on the side near the rocket foot and at the open end; A heat shield is provided on the side of the first protrusion away from the rocket's foot. The heat shield is positioned between the first protrusion and the pressure head. One end of the heat shield is connected to the first protrusion via a thirteenth rotating shaft, and the other end of the heat shield extends away from the first housing and is inclined towards the pressure head. The first housing has a second protrusion on the side near the rocket's foot and at the end furthest from the opening, and the second protrusion has a rotating hole; The first shell has a U-shaped curved surface that is concave towards the center of the first shell on the side near the rocket's foot. The sidewall of the first housing away from the rocket's foot transitions into a curved slope at the opening end; The first housing has a protrusion on the side wall away from the rocket's foot and near the curved end; The first housing is provided with a slide for the movement of the fourth connector; Furthermore, the fourth connector includes a slider and boss components located on the upper and lower sides of the slider and extending away from each other, the boss components including an upper boss assembly and a lower boss assembly, the upper boss assembly including two symmetrically arranged upper protrusions connected to the third connector via the eleventh rotation axis, the lower boss assembly including two symmetrically arranged lower protrusions connected to the first drive device via the twelfth rotation axis.

[0014] Furthermore, the slider is provided with symmetrical double-row pulleys on both sides, and the double-row pulleys can move along the slide rail. The pulleys of the double-row pulleys close to the rocket foot are connected by a first connecting shaft, and the pulleys of the double-row pulleys away from the rocket foot are connected by a second connecting shaft. The extension dimensions of the two ends of the second connecting shaft are greater than the extension dimensions of the two ends of the first connecting shaft. The two ends of the second connecting shaft are located on the horizontal sliding guide groove on the fixed structure and can move freely along the horizontal sliding guide groove.

[0015] The present invention provides a liquid rocket traction release device, comprising a plurality of traction release mechanisms disposed on the surface of a launch platform and used for locking the rocket feet, each of the traction release mechanisms comprising a fixing structure, a clamping device and a first rotating shaft.

[0016] In use, the first driving device retracts along the direction perpendicular to the rocket axis, driving the connecting assembly to rotate the lower end of the pressure head along the second rotation axis, thereby causing the upper end of the pressure head to move away from the rocket's foot. Since the weight of the clamping device on the side closer to the rocket's foot is less than the weight on the side farther away from the rocket's foot, the entire clamping device rotates circumferentially along the first rotation axis and falls into the first receiving space, completing the release of the rocket's foot.

[0017] The entire liquid rocket traction release device, through a drive unit and by cleverly utilizing the uneven weight distribution at both ends of the clamping device, smoothly completes the opening and tilting of the traction release device. This simplifies the control system, facilitates installation and operation, improves structural safety and reliability, and greatly saves costs, laying the foundation for the safe takeoff of the rocket.

[0018] It should be understood that the above general description and the following specific embodiments are merely exemplary and illustrative, and do not limit the scope of the invention. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the liquid rocket traction release device and rocket feet of the present invention; Figure 2 This is a cross-sectional schematic diagram of the liquid rocket traction and release device of the present invention; Figure 3 This is a schematic diagram of the backward tilting structure of the liquid rocket traction release device of the present invention; Figure 4 This is a schematic diagram of the pressing device of the present invention; Figure 5 This is a schematic diagram of the structure of the first housing of the present invention; Figure 6 This is a schematic diagram of the fixing structure of the present invention; Figure 7 This is a front view of the fourth connecting member and the double-row pulleys of the present invention; Figure 8 This is a top view of the fourth connector and the double-row pulleys of the present invention; Figure 9 This is a schematic diagram showing the relative position of the fourth connecting piece with the horizontal sliding guide groove and slide when the traction release device of the present invention locks the rocket's arrow foot; Figure 10 This is a schematic diagram showing the relative positions of the fourth connecting piece with the horizontal sliding guide groove and slide when the traction release device of the present invention is opened and tilted back. Figure 11 This is a schematic diagram of the structure of the fourth connecting piece, the horizontal sliding guide groove, and the slide rail when the traction release device of the present invention locks the rocket's arrow foot; Figure 12 This is a schematic diagram of the structure of the fourth connecting piece, the horizontal sliding guide groove, and the slide when the traction release device of the present invention is opened and tilted back; Figure 13 This is a top view of the first housing of the present invention; Figure 14 This is a top view of the heat-resistant baffle of the present invention abutting against the first housing.

[0020] Figure label: 1. Rocket feet 2. Fixing structure 3. Clamping device; 4. First rotating shaft 5 First containment space 6 Pressure head 7 Connecting component 8 First drive device 9 Second rotating shaft 10 First housing 11 Second containment space 12 Second shell 13 Second drive unit 14 First housing 15 Second housing 16 Locking port 17 Locking mechanism 18 Third rotating shaft 19 Locking element 20 Horizontal sliding guide groove 21 Fourth Rotary Shaft 22 Hydraulic Cylinder 23 Support component 24 Fifth rotating axis 25 Sixth Rotating Axis 26 First Connecting Member 27 Second connector 28 Third connector 29 Fourth Connector 30 Seventh Rotating Shaft 31 Eighth Rotation Axis 32 Ninth Rotation Axis 33 Tenth Rotation Axis 34 Eleventh Rotation Axis 35 Twelfth Rotation Axis 36 First Boss 37 Slide rail 38 Upper boss assembly 39 Lower boss assembly 40 Double row pulley 41 First connecting shaft 42 Second connecting shaft 43 Heat shield 44 Second protrusion Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0022] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0025] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the present invention provides a liquid rocket traction release device, comprising multiple traction release mechanisms disposed on the surface of a launch platform for locking the rocket's foot 1. Each traction release mechanism includes at least a fixing structure 2, a clamping device 3, and a first rotating shaft 4. The fixing structure 2 and the clamping device 3 are connected by the first rotating shaft 4. The bottom of the fixing structure 2 is fixedly connected to the launch platform, and the top is provided with a first receiving space 5 for accommodating the clamping device 3. The upper part of the clamping device 3 abuts against the rocket's foot 1 to lock the rocket's foot 1, and the lower part can rotate circumferentially along the surface of the first rotating shaft 4.

[0027] The weight of the clamping device 3 on the side closer to the rocket foot 1 is less than the weight of the clamping device 3 on the side farther away from the rocket foot 1.

[0028] The clamping device 3 includes a pressure head 6, a connecting assembly 7, a first driving device 8, a second rotating shaft 9, and a first housing 10 containing a second receiving space 11. The pressure head 6, the connecting assembly 7, and the first driving device 8 are all located inside the second receiving space 11. The upper end of the pressure head 6 is used to abut against the rocket foot 1. The lower end of the pressure head 6 near the rocket foot 1 is fixed inside the first housing 10 by the second rotating shaft 9, and the pressure head 6 can rotate circumferentially along the surface of the second rotating shaft 9. The lower end of the pressure head 6 away from the rocket foot 1 is connected to the output end of the connecting assembly 7, and the input end of the connecting assembly 7 is connected to the output end of the first driving device 8.

[0029] The first driving device 8 retracts along the direction perpendicular to the rocket axis to drive the connecting assembly 7 to rotate the lower end of the pressure head 6 along the second rotating axis 9, thereby causing the upper end of the pressure head 6 to move away from the rocket foot 1, so that the entire clamping device 3 rotates circumferentially along the first rotating axis 4 and falls into the first receiving space 5, thus completing the release of the rocket foot.

[0030] Specifically, the present invention provides a liquid rocket traction release device. It includes multiple traction release mechanisms disposed on the surface of the launch platform for locking the rocket's foot 1. Each traction release mechanism consists of a fixing structure 2, a clamping device 3, and a first rotating shaft 4.

[0031] In use, the first drive device 8 retracts along the direction perpendicular to the rocket axis, driving the connecting assembly 7 to rotate the lower end of the pressure head 6 along the second rotating shaft 9, thereby causing the upper end of the pressure head 6 to move away from the rocket foot 1. Since the weight of the clamping device 3 on the side closer to the rocket foot 1 is less than the weight of the clamping device 3 on the side farther from the rocket foot 1, the entire clamping device 3 rotates circumferentially along the first rotating shaft 4 and falls into the first receiving space 5, completing the release of the rocket foot 1.

[0032] The entire liquid rocket traction release device, through a set of drive devices and the ingenious use of the uneven weight distribution at both ends of the clamping device 3, smoothly completes the opening and tilting of the traction release device. This simplifies the control system, facilitates installation and operation, improves structural safety and reliability, and greatly saves costs, laying the foundation for the safe takeoff of the rocket.

[0033] It should be noted that the fixing structure 2 includes a second housing 12 and a second driving device 13. In order to increase the working space of the clamping device 3 and facilitate the clamping device 3 to fall back quickly, for example, the second housing 12 includes a first receiving housing 14 containing a first working space and a second receiving housing 15 containing a second working space. The second receiving housing 15 is located on the upper part of the first receiving housing 14 away from the rocket foot 1. The lower part of the first receiving housing 14 is used for fixed connection with the launch platform. The upper part of the first receiving housing 14 is connected to the lower part of the second receiving housing 15. The upper part of the second receiving housing 15 extends away from the first receiving housing 14. The first working space and the second working space are interconnected to form a first receiving space 5.

[0034] In this embodiment, after the clamping device 3 has finished tilting (after the first housing 10 is located inside the second housing 12), in order to effectively fix the first housing 10 and prevent the first housing 10 from shaking, for example, the outer wall of the first receiving housing 14 away from the rocket foot 1 is provided with a locking port 16 and a locking mechanism 17. The locking mechanism 17 includes a third rotating shaft 18 and a locking member 19. One end of the locking member 19 is fixed to the first receiving housing 14 through the third rotating shaft 18 and can rotate circumferentially along the third rotating shaft 18. The other end of the locking member 19 is used to pass through the locking port 16 and abut against the clamping device 3 (the outer surface of the first housing 10) to fix the clamping device 3 in the first receiving space 5. To ensure a more secure fixation of the clamping device 3, for example, the first housing 10 of the clamping device 3 has a protrusion that matches one end of the locking member 19 (the protrusion is located on the side wall of the first housing 10 away from the rocket foot 1 and near the curved end). One end of the locking member 19 passes through the locking port 16 and is tightly fitted against the end face of the protrusion away from the second housing 12, thus fixing the clamping device 3 within the first receiving space 5. When the clamping device 3 needs to press the rocket foot 1, the locking member 19 is manually opened to separate it from the protrusion. In this embodiment, the locking member 19 has an L-shaped structure.

[0035] In addition, to facilitate the movement of the clamping device 3 and its fixation to the rocket foot 1, for example, the second drive device 13 includes a hydraulic cylinder 22 and a support member 23. The telescopic end of the hydraulic cylinder 22 is connected to the support member 23 via a fifth rotating shaft 24, and the support member 23 can rotate along the surface of the fifth rotating shaft 24. The support member 23 has an obtuse-angled triangle shape, with the obtuse-angled end connected to the telescopic end of the hydraulic cylinder 22. The first acute-angled end corresponding to the long side is used to abut against the outer wall of the bottom of the first housing 10, and the second acute-angled end corresponding to the short side is fixed to the side wall of the first receiving housing 14 via a sixth rotating shaft 25.

[0036] In the same embodiment, the second driving device 13 is located inside the first housing 14, and one end of the second driving device 13 is fixedly connected to the first housing 14 via the fourth rotating shaft 21, and the other end is used to abut against the bottom of the first housing 14 to drive the first housing 14 to rotate circumferentially along the first rotating shaft 4.

[0037] In addition, in order to facilitate the fourth connector 29 to support the first housing 10 through the horizontal sliding guide groove, for example, the second housing 15 is provided with a horizontal sliding guide groove 20 at the end away from the first housing 14. One end of the horizontal sliding guide groove 20 is a closed structure, and the other end is an open structure, with the opening of the open structure facing the rocket foot 1 side.

[0038] In application, the extension end of the hydraulic cylinder 22 extends, causing the first acute angle end corresponding to the long side of the support member 23 to move towards the first housing 10. This makes the first acute angle end corresponding to the long side fit tightly against the first housing 10 and continue to apply pressure to the first housing 10, thereby causing the first housing 10 to rotate along the first rotating axis until the pressure head 6 abuts against the rocket foot 1. The extension end of the first drive device 8 pushes the slider into the horizontal sliding guide groove 20 (the second connecting shaft at least abuts against the downward slide of the horizontal sliding guide groove), realizing the reset of the restraint release (locking the rocket foot).

[0039] To further explain, to facilitate the rotation of the pressure head 6, for example, the pressure head 6 is roughly L-shaped. To ensure the stability of the pressure head structure, for example, the thickness of the pressure head 6 gradually increases towards the bending part of the pressure head 6 near the rocket foot 1. To further facilitate the contact between the pressure head 6 and the rocket foot 1 and improve the connection speed, for example, the upper part of the contact end between the pressure head 6 and the rocket foot 1 is a convex curved surface. To facilitate the rotation of the pressure head 6 and reduce its weight, for example, the end of the pressure head 6 away from the rocket foot 1 is provided with two rotating holes (for cooperating with the second rotating shaft and the seventh rotating shaft), and the part of the pressure head located between the two rotating holes is provided with an upper concave portion.

[0040] In the same embodiment, the connecting assembly 7 includes a first connector 26, a second connector 27, a third connector 28, a fourth connector 29, a seventh rotating shaft 30, an eighth rotating shaft 31, a ninth rotating shaft 32, a tenth rotating shaft 33, an eleventh rotating shaft 34, and a twelfth rotating shaft 35. The output end of the first connector 26 is connected to the pressure head 6 via the seventh rotating shaft 30. The input end of the first connector 26 is connected to the output end of the second connector 27 via the eighth rotating shaft 31. The fixed end of the second connector 27 (similar to a U-shape) is connected to the first housing 10 via the ninth rotating shaft 32. The input end of the second connector 27 is connected to the output end of the third connector 28 via the tenth rotating shaft 33. The input end of the third connector 28 is connected to the output end of the fourth connector 29 via the eleventh rotating shaft 34. The input end of the fourth connector 29 is connected to the output end of the first drive device 8 via the twelfth rotating shaft 35. The first drive device 8 is a hydraulic cylinder structure. The hydraulic cylinder structure is fixed inside the first housing 10 by a fixing block, and the hydraulic cylinder structure moves with the first housing 10. To ensure the stability of the fixing block structure, for example, the fixing block is cubic in shape. It is respectively fitted into the middle and rear parts (the telescopic part is the front part) of the hydraulic cylinder structure, and the fixing block is fixed to the first housing by locking bolts.

[0041] In the same embodiment, in order to facilitate the connection between the rocket foot 1 and the pressure head 6 (the rocket foot 1 is provided with an inner recess that matches the pressure head 6), for example, the first housing 10 is a closed structure with an opening at one end, and the first housing 10 is provided with a first protrusion 36 for supporting the rocket foot 1 on the side near the rocket foot 1 and at the opening end.

[0042] like Figure 1 , Figure 2 and Figure 14 As shown, to prevent the components inside the first housing 10 from being damaged by high-temperature burning, for example, a heat-resistant baffle 43 is provided on the side of the first protrusion 36 away from the rocket foot 1. The heat-resistant baffle 43 is located between the first protrusion 36 and the pressure head 6. One end of the heat-resistant baffle 43 is connected to the first protrusion 36 through the thirteenth rotating shaft, and the other end of the heat-resistant baffle 43 extends away from the first housing 10 and is inclined towards the pressure head 6. When the first housing 10 tilts backward, one end of the heat-resistant baffle 43 rotates along the thirteenth rotating shaft, so that the entire heat-resistant baffle 43 covers the second receiving space 11 (the part of the second receiving space 11 near the first protrusion), forming a closed plate on the upper part of the second receiving space 11, isolating the high-temperature flame, thereby protecting the components inside the second receiving space 11, reducing the damage to the components due to high-temperature burning, and ensuring the safe use of the fixing structure 2 and the pressing device 3.

[0043] In addition, the first housing 10 has a second boss 44 on the side near the rocket foot 1 and at the end away from the opening, and the second boss 44 has a rotating hole.

[0044] like Figure 1 and Figure 2 As shown, in order to reduce the weight of the first housing 10 and facilitate the rotation of the first housing 10, for example, the side of the first housing 10 near the rocket foot 1 is provided with a U-shaped curved surface that is concave inward toward the center of the first housing 10, so as to achieve uneven weight distribution on both sides of the first housing, that is, the weight of the side of the first housing 10 near the rocket foot 1 is less than the weight of the side of the first housing 10 away from the rocket foot 1, which facilitates the rapid rotation of the first housing 10.

[0045] like Figure 3 , Figure 4 and Figure 5 As shown, in order to facilitate the rotation of the first housing 10 and save space for the second housing 12, for example, the side wall of the first housing 10 away from the rocket foot 1 transitions to the opening end to form a curved slope. The curved slope design not only reduces the rotation radius of the first housing 10, but also greatly saves the space used by the second housing 12, and facilitates the installation and disassembly of the second housing 12.

[0046] like Figure 1 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 and Figure 13 As shown, the first housing 10 is provided with a slide 37 for the movement of the fourth connector 29. The fourth connector 29 includes a slider and boss components located on the upper and lower sides of the slider and extending away from each other. The boss components include an upper boss assembly 38 and a lower boss assembly 39. The upper boss assembly 38 includes two symmetrically arranged upper protrusions, which are connected to the third connector 28 via an eleventh rotation shaft 41. The lower boss assembly 39 includes two symmetrically arranged lower protrusions, which are connected to the first drive device 8 via a twelfth rotation shaft 35.

[0047] It should be noted that the slider has symmetrical double-row pulleys 40 on both sides, and the double-row pulleys 40 can move along the slide rail. The pulleys of the double-row pulleys 40 closer to the rocket foot 1 are connected by a first connecting shaft 41, and the pulleys of the double-row pulleys farther from the rocket foot 1 are connected by a second connecting shaft 42. The extension dimensions of the two ends of the second connecting shaft 42 are larger than the extension dimensions of the two ends of the first connecting shaft 41. The two ends of the second connecting shaft 42 are located on the horizontal sliding guide groove 20 on the fixed structure 2 and can move freely along the horizontal sliding guide groove 20. Along the direction of slider movement, the center line of the horizontal sliding guide groove 20 coincides with the center line of the slide rail.

[0048] In use, the telescopic end of the first drive device 8 retracts, driving the lower boss assembly 39 to move towards the rocket foot 1. This causes the double-row pulleys, which are fixedly connected to the slider, to move simultaneously along the horizontal sliding guide groove 20 and the slide rail 37 (the pulleys of the double-row pulleys closer to the rocket foot 1 are located on the slide rail, and the pulleys of the double-row pulleys farther from the rocket foot 1 are located on the slide rail, while the two ends of the second connecting shaft are located on the horizontal sliding guide groove). The upper slide rail of the horizontal sliding guide groove 20 is longer than the lower slide rail. When the double-row pulleys slide, when the second connecting shaft 42 moves a distance exceeding the length of the lower slide rail, the lower slide rail of the horizontal sliding guide groove 20 unlocks the second connecting shaft 42 (the lower slide rail loses its support for the second connecting shaft). Since the weight of the clamping device on the side closer to the rocket foot 1 is less than the weight of the clamping device 3 on the side farther from the rocket foot 1, the entire clamping device 3 rotates circumferentially along the first rotating shaft 4 and falls into the first receiving space 5, thus releasing the rocket foot 1.

[0049] In addition, to ensure the structural stability of the upper and lower convex bodies, for example, the cross-sections of the upper and lower convex bodies (such as...) Figure 2 The cross-section of the object is similar in shape to a triangle.

[0050] The above embodiments can be combined with each other and have corresponding technical effects.

[0051] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A liquid rocket traction release device, characterized in that, The system includes multiple traction and release mechanisms mounted on the surface of the launch platform for locking the rocket's flight feet. Each traction and release mechanism includes at least a fixing structure, a clamping device, and a first rotating shaft. The fixing structure and the clamping device are connected via the first rotating shaft. The bottom of the fixing structure is fixedly connected to the launch platform, and the top is provided with a first receiving space for accommodating the clamping device. The upper part of the clamping device abuts against the rocket's flight feet to lock them in place, and the lower part is circumferentially rotatable along the surface of the first rotating shaft. The weight of the clamping device on the side closer to the rocket's foot is less than the weight of the clamping device on the side farther from the rocket's foot. The clamping device includes a pressure head, a connecting assembly, a first driving device, a second rotating shaft, and a first housing containing a second accommodating space. The pressure head, the connecting assembly, and the first driving device are all located inside the second accommodating space. The upper end of the pressure head is used to abut against the rocket's foot. The lower end of the pressure head near the rocket's foot is fixed inside the first housing via the second rotating shaft, and the pressure head can rotate circumferentially along the surface of the second rotating shaft. The lower end of the pressure head away from the rocket's foot is connected to the output end of the connecting assembly, and the input end of the connecting assembly is connected to the output end of the first driving device. The first driving device retracts along the direction perpendicular to the rocket axis to drive the connecting assembly to rotate the lower end of the pressure head along the second rotation axis, thereby causing the upper end of the pressure head to move away from the rocket foot, so that the entire clamping device rotates circumferentially along the first rotation axis and falls into the first receiving space, thus completing the release of the rocket foot.

2. The liquid rocket traction release device according to claim 1, characterized in that, The fixed structure includes a second housing and a second drive device. The second housing includes a first receiving housing with a first movable space and a second receiving housing with a second movable space. The second receiving housing is located on the upper part of the first receiving housing on the side away from the rocket foot. The lower part of the first receiving housing is used to be fixedly connected to the launch platform. The upper part of the first receiving housing is connected to the lower part of the second receiving housing. The upper part of the second receiving housing extends away from the first receiving housing. The first movable space and the second movable space are interconnected to form the first accommodating space.

3. The liquid rocket traction release device according to claim 2, characterized in that, The outer wall of the first receiving housing away from the rocket's foot is provided with a locking port and a locking mechanism. The locking mechanism includes a third rotating shaft and a locking member. One end of the locking member is fixed to the first receiving housing via the third rotating shaft and can rotate circumferentially along the third rotating shaft. The other end of the locking member is used to pass through the locking port and abut against the pressing device to fix the pressing device in the first receiving space.

4. The liquid rocket traction release device according to claim 2, characterized in that, The second housing is provided with a horizontal sliding guide groove at the end away from the first housing. One end of the horizontal sliding guide groove is a closed structure, and the other end is an open structure, with the opening of the open structure facing the rocket foot side.

5. The liquid rocket traction release device according to claim 2, characterized in that, The second driving device is located inside the first housing, and one end of the second driving device is fixedly connected to the first housing via a fourth rotating shaft, while the other end is used to abut against the bottom of the first housing to drive the first housing to rotate circumferentially along the first rotating shaft.

6. The liquid rocket traction release device according to claim 2, characterized in that, The second driving device includes a hydraulic cylinder and a support member. The telescopic end of the hydraulic cylinder is connected to the support member through a fifth rotating shaft, and the support member can rotate along the surface of the fifth rotating shaft. The support member has an obtuse triangle shape, with the obtuse end connected to the telescopic end of the hydraulic cylinder. The first acute angle end corresponding to the long side is used to abut against the outer wall of the bottom of the first housing, and the second acute angle end corresponding to the short side is fixed to the side wall of the first housing through a sixth rotating shaft.

7. The liquid rocket traction release device according to claim 1, characterized in that, The pressure head is roughly L-shaped, with the upper part of the pressure head that abuts against the rocket foot being a convex curved surface. The end of the pressure head away from the rocket foot is provided with two rotating holes, and the part of the pressure head located between the two rotating holes is provided with an upper concave portion.

8. The liquid rocket traction release device according to claim 1, characterized in that, The connecting assembly includes a first connector, a second connector, a third connector, a fourth connector, a seventh rotating shaft, an eighth rotating shaft, a ninth rotating shaft, a tenth rotating shaft, an eleventh rotating shaft, and a twelfth rotating shaft. The output end of the first connector is connected to the pressure head via the seventh rotating shaft; the input end of the first connector is connected to the output end of the second connector via the eighth rotating shaft; the fixed end of the second connector is connected to the first housing via the ninth rotating shaft; the input end of the second connector is connected to the output end of the third connector via the tenth rotating shaft; the input end of the third connector is connected to the output end of the fourth connector via the eleventh rotating shaft; and the input end of the fourth connector is connected to the output end of the first driving device via the twelfth rotating shaft. The first driving device is a hydraulic cylinder structure, and the hydraulic cylinder structure is fixed within the first housing by a fixing block.

9. The liquid rocket traction release device according to claim 8, characterized in that, The first housing has a U-shaped curved surface that is concave towards the center of the first housing on the side near the rocket's foot, and the first housing has a slide for the fourth connector to move.

10. The liquid rocket traction release device according to claim 9, characterized in that, The fourth connector includes a slider and boss components located on the upper and lower sides of the slider and extending away from each other. The boss components include an upper boss assembly and a lower boss assembly. The upper boss assembly includes two symmetrically arranged upper protrusions, which are connected to the third connector via the eleventh rotation axis. The lower boss assembly includes two symmetrically arranged lower protrusions, which are connected to the first drive device via the twelfth rotation axis. Symmetrical double-row pulleys are provided on both sides of the slider, and the double-row pulleys can move along the slide rail. The pulleys on both sides of the double-row pulleys near the rocket's foot are connected via a first connecting shaft, and the pulleys on both sides of the double-row pulleys away from the rocket's foot are connected via a second connecting shaft. The extension dimensions of the two ends of the second connecting shaft are greater than the extension dimensions of the two ends of the first connecting shaft. The two ends of the second connecting shaft are located on the horizontal sliding guide groove on the fixed structure and can move freely along the horizontal sliding guide groove.

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