Recyclable rocket and supporting feet thereof
By incorporating a support leg structure with support arms and cylinders inside the rocket casing, the problem of the heavy support legs affecting the center of gravity was solved, thus achieving the effects of rocket attitude adjustment and stable landing.
Patent Information
- Application Number
- CN202423268171.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-29
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-29
AI Technical Summary
The existing reusable rockets have large support leg structures, which cause the rocket's center of gravity to drop, affecting attitude adjustment.
A support arm and a cylinder are installed inside the rocket casing. The cylinder drives the support arm to rotate from horizontal to vertical, raising the rocket's center of gravity in the form of a support foot, and supporting it on the recovery chopsticks during landing.
Raising the rocket's center of gravity facilitates attitude adjustment and stable landing, while reducing the weight of the supporting structure decreases flight drag.
Smart Images
Figure CN223512629U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of aerospace, and more particularly to a reusable rocket and its support legs. Background Technology
[0002] With the development of launch vehicle technology, reusable rockets have become an important direction for future space development. Reusable rockets can reduce the launch cost per unit payload and shorten the launch cycle. Landing methods for reusable rockets include support legs and "chopsticks".
[0003] The support leg system mainly involves arranging no fewer than three support leg structures at the tail section of the first stage of the rocket. As the rocket is about to land, the support legs unfold, allowing the rocket to land vertically at the landing site. However, the support leg structures are quite heavy. In order to facilitate attitude adjustment in the air, the rocket's center of gravity should be raised as much as possible during the design process. However, the heavy support legs, located at the tail of the rocket, lower the rocket's center of gravity.
[0004] Therefore, how to raise the center of gravity of a reusable rocket to facilitate attitude adjustment during flight is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0005] This application provides a reusable rocket and its supporting legs to raise the center of gravity of the reusable rocket, which is beneficial for adjusting the rocket's attitude during flight.
[0006] To solve the above-mentioned technical problems, this application provides the following technical solution:
[0007] A support foot for a reusable rocket includes: a support arm, a cylinder, and a foot; wherein, the inner end of the support arm is located inside the rocket shell and is hinged to a component inside the rocket shell; the cylinder is located inside the rocket shell, the inner end of the cylinder is hinged to a component inside the rocket shell, the outer end of the cylinder is hinged to the support arm near its inner end, and the outer end of the cylinder is located on the side of the support arm facing the rocket shell, and the extension of the cylinder drives the support arm to rotate from the direction of extension of the rocket shell to a direction perpendicular to the rocket shell; the upper end of the foot is fixedly connected to the support arm near its outer end, the lower end of the foot is away from the support arm, and the foot is located on the side of the support arm facing the rocket shell.
[0008] As described above, in the support leg of the reusable rocket, preferably, the inner end of the support arm is hinged to a component inside the rocket shell, the cylinder end of the cylinder is hinged to a component inside the rocket shell, and the piston rod of the cylinder is hinged to a position of the support arm near its inner end.
[0009] As described above, the support foot of the reusable rocket preferably has a support groove on the rocket shell, and the cylinder shortens to drive the support arm to rotate into the support groove embedded in the rocket.
[0010] As described above, the support foot of the reusable rocket preferably has a support arm located within a support groove of the rocket, and the side of the support arm away from the rocket casing is flush with the outer surface of the rocket casing.
[0011] The support foot of the reusable rocket as described above, preferably, has the foot perpendicular to the support arm, and the diameter of the lower end of the foot is larger than the diameter of the other parts of the foot.
[0012] A reusable rocket includes: a rocket body, and multiple reusable rocket support legs; each reusable rocket support leg includes: a support arm, a cylinder, and a foot; multiple support slots are formed on the rocket shell near the top, each support slot contains a support arm, and the inner end of the support arm is located inside the rocket shell and hinged to a component inside the rocket shell; the support arm is hinged to the outer end of a cylinder located inside the rocket shell near its inner end, and the outer end of the cylinder is located on the side of the support arm facing the rocket shell; the inner end of the cylinder is hinged to the component inside the rocket shell, and the cylinder extends to drive the support arm to rotate from the extension direction of the rocket shell to a direction perpendicular to the rocket shell; the upper end of the foot is fixedly connected to the support arm near its outer end, the lower end of the foot is away from the support arm, and the foot is located on the side of the support arm facing the rocket shell.
[0013] In the reusable rocket described above, preferably, the inner end of the support arm is hinged to a component inside the rocket shell, the cylinder end of the cylinder is hinged to a component inside the rocket shell, and the piston rod of the cylinder is hinged to a position of the support arm near its inner end.
[0014] In the reusable rocket described above, preferably, the support arm is located within the support slot of the rocket, and the side of the support arm away from the rocket casing is flush with the outer surface of the rocket casing.
[0015] In the reusable rocket described above, preferably, the outriggers are perpendicular to the support arm, and the diameter of the lower end of the outriggers is larger than the diameter of the other parts of the outriggers.
[0016] The reusable rocket described above preferably has four support legs, and the rocket body shell has four support slots, which are evenly distributed on the same circumference of the rocket shell.
[0017] Compared to the aforementioned background technology, the reusable rocket of this application uses a chopstick-grip recovery method for its support legs. Therefore, the support legs are arranged on the top of the first-stage rocket, which can raise the rocket's center of gravity and facilitate attitude adjustment during flight. Furthermore, when the rocket lands, it falls onto the chopstick recovery bracket via the support legs, thus preventing the rocket from contacting the ground. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings.
[0019] Figure 1 This is a schematic diagram of the support legs of the reusable rocket provided in the embodiments of this application in a retracted state;
[0020] Figure 2 This is a schematic diagram of the support legs of a reusable rocket in an deployed state, as provided in an embodiment of this application. Detailed Implementation
[0021] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. Additionally, spatial relationship terms such as "upper," "lower," "left," "right," "front," and "rear" are used for ease of description to explain the positional relationship between two components. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.
[0022] Example 1
[0023] like Figure 1 and Figure 2 As shown, this application provides a support foot 100 for a reusable rocket, including: a support arm 110, a cylinder 120, and a foot 130; wherein, the inner end of the support arm 110 is located inside the rocket shell and is hinged to a component inside the rocket shell; the cylinder 120 is located inside the rocket shell, the inner end of the cylinder 120 is hinged to a component inside the rocket shell, the outer end of the cylinder 120 is hinged to a position near the inner end of the support arm 110, and the outer end of the cylinder 120 is located on the side of the support arm 110 facing the rocket shell, and the cylinder 120 extends to drive the support arm 110 to rotate from the extension direction of the rocket shell to a direction perpendicular to the rocket shell; the upper end of the foot 130 is fixedly connected to a position near the outer end of the support arm 110, the lower end of the foot 130 is away from the support arm 110, and the foot 130 is located on the side of the support arm 110 facing the rocket shell.
[0024] Optionally, the inner end of the support arm 110 is hinged to a component inside the rocket casing, the cylinder end of the cylinder 120 is hinged to a component inside the rocket casing, and the piston rod of the cylinder 120 is hinged to a position near the inner end of the support arm 110.
[0025] Alternatively, a support groove 210 is provided on the rocket casing, and the cylinder 120 shortens to drive the support arm 110 to rotate into the support groove 210 embedded in the rocket. Alternatively, the support arm 110 is located in the support groove 210 of the rocket, and the side of the support arm 110 away from the rocket casing is flush with the outer side of the rocket casing, thereby ensuring the integrity of the rocket's shape before landing.
[0026] Alternatively, the support leg 130 is perpendicular to the support arm 110 to facilitate stable rocket landing and post-landing stability. Alternatively, the lower end of the support leg 130 has a larger diameter than other parts of the support leg 130, thereby increasing the landing contact area and further facilitating stable rocket landing.
[0027] Example 2
[0028] like Figure 1 and Figure 2 As shown, this application also provides a reusable rocket, including: a rocket body 200 and a plurality of reusable rocket support legs 100; each reusable rocket support leg 100 includes: a support arm 110, a cylinder 120 and a foot 130; a plurality of support grooves 210 are formed on the rocket shell near the top, each support groove 210 is embedded with a support arm 110, and the inner end of the support arm 110 is located inside the rocket shell and is hinged to a component inside the rocket shell. The position of the support arm 110 near its inner end is... The cylinder 120 is hinged to the outer end of a cylinder located inside the rocket casing, and the outer end of the cylinder 120 is located on the side of the support arm 110 facing the rocket casing; the inner end of the cylinder 120 is hinged to a component inside the rocket casing, and the extension of the cylinder 120 drives the support arm 110 to rotate from the direction of extension of the rocket casing to the direction perpendicular to the rocket casing; the upper end of the support leg 130 is fixedly connected to the support arm 110 near its outer end, the lower end of the support leg 130 is away from the support arm 110, and the support leg 130 is located on the side of the support arm 110 facing the rocket casing.
[0029] Optionally, the inner end of the support arm 110 is hinged to a component inside the rocket casing, the cylinder end of the cylinder 120 is hinged to a component inside the rocket casing, and the piston rod of the cylinder 120 is hinged to a position near the inner end of the support arm 110. Alternatively, the support arm 110 is located within a support groove of the rocket, and the side of the support arm 110 away from the rocket casing is flush with the outer surface of the rocket casing, thus ensuring the integrity of the rocket's shape before landing.
[0030] Alternatively, the support leg 130 is perpendicular to the support arm 110 to facilitate stable rocket landing and post-landing stability. Alternatively, the lower end of the support leg 130 has a larger diameter than other parts of the support leg 130, thereby increasing the landing contact area and further facilitating stable rocket landing.
[0031] Optionally, the reusable rocket has four support legs 100, and four support slots 210 are formed on the rocket shell of the rocket body 200, with the four support slots 210 evenly distributed on the same circumference of the rocket shell. Alternatively, the four support legs 100 are located below the rocket's grid fins 220 and are spaced apart from the grid fins 220.
[0032] Before the rocket lands, the support arm 110 and the support leg 130 are embedded in the support groove 210 by the cylinder 120, thereby retracting into the rocket shell to reduce the rocket's flight drag. Just before the rocket lands, the cylinder 120 drives the support arm 110 to extend out of the rocket shell and into a horizontal position. As the rocket lands, the lower end of the support leg 130 lands on the cantilever beam of the recovery chopstick bracket 300.
[0033] Because the support foot of this application is located near the top of the rocket casing and the structure of the support foot is simple, the weight of the support foot is reduced, which greatly raises the center of gravity of the rocket and is beneficial to the control of the rocket's attitude during flight.
[0034] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A support foot for a reusable rocket, characterized in that, include: Support arm, cylinder, and outriggers; The inner end of the support arm is located inside the rocket casing and is hinged to components inside the rocket casing. The cylinder is located inside the rocket shell. The inner end of the cylinder is hinged to the components inside the rocket shell. The outer end of the cylinder is hinged to the support arm near its inner end. The outer end of the cylinder is located on the side of the support arm facing the rocket shell. The cylinder extends to drive the support arm to rotate from the direction of extension of the rocket shell to the direction perpendicular to the rocket shell. The upper end of the outrigger is fixedly connected to the support arm near its outer end, the lower end of the outrigger is away from the support arm, and the outrigger is located on the side of the support arm facing the rocket casing.
2. The support foot of the reusable rocket according to claim 1, characterized in that, The inner end of the support arm is hinged to a component inside the rocket casing via a hinge, the cylinder end of the cylinder is hinged to a component inside the rocket casing via a hinge, and the piston rod of the cylinder is hinged to a position of the support arm near its inner end via a hinge.
3. The support foot of the reusable rocket according to claim 1 or 2, characterized in that, The rocket casing has a support groove, and the cylinder shortens to drive the support arm to rotate into the support groove embedded in the rocket.
4. The support foot of the reusable rocket according to claim 3, characterized in that, The support arm is located inside the rocket's support slot, and the side of the support arm away from the rocket casing is flush with the outer side of the rocket casing.
5. The support foot of the reusable rocket according to claim 1 or 2, characterized in that, The support leg is perpendicular to the support arm, and the diameter of the lower end of the support leg is larger than the diameter of the rest of the support leg.
6. A reusable rocket, comprising: The rocket body is characterized by further comprising: multiple support legs for reusable rockets; each support leg for a reusable rocket includes: a support arm, a cylinder, and a foot. The rocket casing has multiple support slots near the top, each support slot has a support arm embedded in it, and the inner end of the support arm is located inside the rocket casing and is hinged to a component inside the rocket casing. The support arm is hinged to the outer end of a cylinder located inside the rocket casing near its inner end, and the outer end of the cylinder is located on the side of the support arm facing the rocket casing. The inner end of the cylinder is hinged to a component inside the rocket shell. The cylinder extends to drive the support arm to rotate from the extension direction of the rocket shell to a direction perpendicular to the rocket shell. The upper end of the outrigger is fixedly connected to the support arm near its outer end, the lower end of the outrigger is away from the support arm, and the outrigger is located on the side of the support arm facing the rocket casing.
7. The reusable rocket according to claim 6, characterized in that, The inner end of the support arm is hinged to a component inside the rocket casing via a hinge, the cylinder end of the cylinder is hinged to a component inside the rocket casing via a hinge, and the piston rod of the cylinder is hinged to a position of the support arm near its inner end via a hinge.
8. The reusable rocket according to claim 6 or 7, characterized in that, The support arm is located inside the rocket's support slot, and the side of the support arm away from the rocket casing is flush with the outer side of the rocket casing.
9. The reusable rocket according to claim 6 or 7, characterized in that, The support leg is perpendicular to the support arm, and the diameter of the lower end of the support leg is larger than the diameter of the rest of the support leg.
10. The reusable rocket according to claim 6 or 7, characterized in that, It has four support legs for reusable rockets, and four support slots are opened on the rocket shell of the rocket body, and the four support slots are evenly distributed on the same circumference of the rocket shell.