Building structure unit suitable for lunar living
By designing building structural units suitable for the residence of the moon, using a hexagonal star frame structure and an intelligent automatic hydraulic system, the problem of difficulty in utilizing resources and high construction costs in existing lunar base buildings in harsh environments, and efficient and economical building assembly and construction are achieved.
Patent Information
- Application Number
- CN202422228499.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-11
AI Technical Summary
The existing lunar base buildings are difficult to effectively utilize lunar resources in extremely harsh lunar environments, and the construction costs are high, so they lack suitable building structural solutions.
A building structural unit suitable for living on the moon was designed, using a hexagonal star frame structure at the top and bottom, an automatic intelligent unfolding and closed rod system and a transition connecting rod system. The structure was folded and unfolded through an intelligent automatic hydraulic system, and 3D printing and manufacturing was used for lunar resources.
It realizes efficient assembly of building structures on the moon, reduces transportation and construction costs, and uses pollution-free solar power to achieve reusable effects.
Smart Images
Figure CN223018275U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lunar base construction, and particularly relates to a building structure unit suitable for lunar habitation. Background Technique
[0002] Lunar architecture is an important foundation for lunar base construction and a necessary facility for subsequent exploration of the lunar space environment and development of lunar resources. Lunar architecture has become a bottleneck that urgently needs to be broken through in future lunar base construction. Conducting research on lunar architecture is of great significance.
[0003] In view of the existing situation of lunar bases, under the extremely harsh lunar environment and the existing earth-moon relationship conditions, it is necessary to design a new type of lunar surface lunar architecture structure that combines the earth and the moon, which can make full use of in-situ lunar resources and accurately combine mature construction technologies on the earth. At present, researchers have proposed various construction plans, such as the "Genesis II" lunar architecture plan, the "LESA" lunar architecture plan, the "Trans hab" plan, the "Clover" lunar architecture plan, etc. However, there is less research on lunar architecture structure plans. An optimized and reasonable structure plan needs to consider factors such as the lunar environment, safety, transportation conditions, construction composition, and economic costs. Content of the Utility Model
[0004] The purpose of the utility model is to provide a building structure unit suitable for lunar habitation, so as to provide basic residential buildings for the lunar exploration project and provide reference for lunar base construction.
[0005] The technical solution of the utility model is as follows:
[0006] A building structure unit suitable for lunar habitation, which is composed of a top hexagonal star-shaped frame structure, a bottom hexagonal star-shaped frame structure, a transition connecting rod system, and an automatic intelligent unfolding and closing rod system. The top hexagonal star-shaped frame structure and the bottom hexagonal star-shaped frame structure are parallel to each other up and down and centered. An automatic intelligent unfolding and closing rod system is arranged between the top hexagonal star-shaped frame structure and the bottom hexagonal star-shaped frame structure. The edges of the top hexagonal star-shaped frame structure and the bottom hexagonal star-shaped frame structure are respectively connected to the automatic intelligent unfolding and closing rod system through the transition connecting rod system to form the overall structural framework of the building structure unit.
[0007] The described building structure unit suitable for lunar habitation has a hexagonal star-shaped frame structure at the top with a circular ring, a hexagonal star-shaped upper cover rod system, and rigid nodes. The rods of the hexagonal star-shaped upper cover rod system are connected in pairs at the vertices through rigid nodes and are fixedly connected equidistantly around the periphery of the circular ring; having the same structure as the top hexagonal star-shaped frame structure, the bottom hexagonal star-shaped frame structure has a circular ring, a hexagonal star-shaped lower cover rod system, and rigid nodes. The rods of the hexagonal star-shaped lower cover rod system are connected in pairs at the vertices through rigid nodes and are fixedly connected equidistantly around the periphery of the circular ring; the transition connecting rod member system is such that one end of the connecting rod is installed with a universal hinge. In the top hexagonal star-shaped frame structure and the bottom hexagonal star-shaped frame structure, the rigid nodes of the hexagonal star-shaped upper cover rod system and the hexagonal star-shaped lower cover rod system are respectively connected circumferentially to the automatic intelligent unfolding and closing rod system through the connecting rods and universal hinge rings of the transition connecting rod member system to form a structural unit.
[0008] For the described building structure unit suitable for lunar habitation, the rods of the hexagonal star-shaped upper cover rod system are connected in pairs through rigid nodes to form six groups of V-shaped rods, and the six groups of V-shaped rods are fixedly connected around the circular ring to form the top hexagonal star-shaped frame structure; similarly, the rods of the hexagonal star-shaped lower cover rod system are connected in pairs through rigid nodes to form six groups of V-shaped rods, and the six groups of V-shaped rods are fixedly connected around the circular ring to form the bottom hexagonal star-shaped frame structure.
[0009] For the described building structure unit suitable for lunar habitation, the connecting rod can freely rotate 45 degrees in three rotational directions around the universal hinge.
[0010] For the described building structure unit suitable for lunar habitation, when the structural unit unfolds, the centers of the top hexagonal star-shaped frame structure and the bottom hexagonal star-shaped frame structure are on the same vertical line.
[0011] For the described building structure unit suitable for lunar habitation, the external rod of the upper and lower unfolding system connected by the outer hinge disc has an angle α not greater than 150 degrees when the structural unit is fully unfolded.
[0012] For the described building structure unit suitable for lunar habitation, when the structural unit unfolds, the connecting rod and the external rod of the unfolding system are on the same straight line.
[0013] The automatic intelligent unfolding and closing rod system of the described building structure unit suitable for lunar habitation includes: an external rod of the unfolding system, an internal rod of the unfolding system, a multi-stage intelligent automatic telescopic hydraulic cylinder, an outer hinge disc, and an inner hinge disc. The specific structure is as follows:
[0014] The vertical outer hinge disk and the inner hinge disk are parallel to each other and their midpoint is on the same horizontal positioning line. The inner hinge disk has the same structure as the outer hinge disk, and the outer diameter of the inner hinge disk is smaller than that of the outer hinge disk. The center of the outer hinge disk is provided with an outer hinge disk center hole, and four symmetrically arranged grooves are formed on the outer periphery of the outer hinge disk, and freely rotatable bolt rods are respectively arranged in the four grooves. One end of each external rod of the deployment system is hinged to the bolt rod, and the other end of each external rod of the deployment system is connected to the connecting rod through a universal hinge. Similarly, the center of the inner hinge disk is provided with an inner hinge disk center hole, and four symmetrically arranged grooves are formed on the outer periphery of the inner hinge disk, and freely rotatable bolt rods are respectively arranged in the four grooves. One end of each internal rod of the deployment system is hinged to the bolt rod, and the other end of each internal rod of the deployment system is connected to a sliding sleeve on the internal rod of the deployment system, so that the other end of the internal rod of the deployment system is in sliding fit with the internal rod of the deployment system. The outer hinge disk and the inner hinge disk are connected by a multi-stage intelligent automatic telescopic hydraulic cylinder, and the external rod and the internal rod of the deployment system rotate relative to each other through the bolt rod at the joint.
[0015] For the building structure unit applicable to lunar habitation, one end of the horizontal multi-stage intelligent automatic telescopic hydraulic cylinder is installed in the outer hinge disk center hole, and the other end of the multi-stage intelligent automatic telescopic hydraulic cylinder is installed in the inner hinge disk center hole.
[0016] For the building structure unit applicable to lunar habitation, the multi-stage intelligent automatic telescopic hydraulic cylinder is composed of two or more automatically telescopic hydraulic cylinders.
[0017] The design concept of the present utility model is:
[0018] The form of the building structure unit component involved in the present utility model is simple, and the lunar resources can be utilized and the manufacturing of the structural components can be realized by means of 3D printing on the moon. In addition, an intelligent automatic hydraulic telescopic mechanism is added to realize the folding and unfolding functions of the building structure, and thus the composition and construction of the overall building structure unit on the moon can be realized efficiently.
[0019] Compared with the prior art, the building structure unit applicable to lunar habitation described in the present utility model has the following advantages and beneficial effects:
[0020] 1. Since the rod members of the building structure unit of the present utility model have a simple structure, their manufacturing, assembly and construction are all completed on the moon, saving transportation costs.
[0021] 2. The present utility model adopts an intelligent automatic hydraulic system to realize the functions of unfolding and closing of the building structure unit, reducing the construction cost of the building structure on the moon.
[0022] 3. The kinetic energy of the intelligent automatic hydraulic system of the present utility model uses lunar resources (such as solar energy) to transfer power, achieving the effects of pollution-free and reusable. Description of the Drawings
[0023] Figure 1 It is a three-dimensional structure schematic diagram of a building structure unit applicable to lunar residence described in the present utility model in the deployed state on the moon.
[0024] Figure 2 It is the present utility model Figure 1 Top view when deployed.
[0025] Figure 3 It is the present utility model Figure 1 Elevation view when deployed.
[0026] Figure 4 It is the present utility model Figure 1 Schematic diagram of the automatic intelligent deployment and closing rod system shown in the present utility model.
[0027] Figure 5 It is the present utility model Figure 4 Right view.
[0028] Figure 6 It is the present utility model Figure 4 Left view.
[0029] Figure 7 It is the present utility model Figure 4 Schematic diagram of the outer hinge disc shown in the present utility model. Among them, (a) front view, (b) side view.
[0030] Figure 8 It is the present utility model Figure 4 Schematic diagram of the multi-stage intelligent automatic telescopic hydraulic cylinder shown in the present utility model.
[0031] Reference numerals are as follows: 1 - top hexagonal star frame structure; 2 - transition connecting rod member system; 3 - automatic intelligent deployment and closing rod system; 4 - ring; 5 - hexagonal star upper cover rod system; 6 - rigid node; 7 - connecting rod; 8 - universal hinge; 9 - external rod of the deployment system; 10 - internal rod of the deployment system; 11 - multi-stage intelligent automatic telescopic hydraulic cylinder; 12 - outer hinge disc; 13 - inner hinge disc; 14 - bottom hexagonal star frame structure; 15 - bolt rod; 16 - central hole of the outer hinge disc; 17 - first-stage hydraulic cylinder; 18 - second-stage hydraulic cylinder; 19 - third-stage hydraulic cylinder; 20 - sliding sleeve. Specific embodiments
[0032] As Figures 1 - 8As shown in the figure, the present utility model proposes a building structure unit suitable for lunar habitation. The building structure unit is composed of a top hexagonal star frame structure 1, a bottom hexagonal star frame structure 14, a transition connecting rod member system 2, and an automatic intelligent unfolding and closing rod system 3. The top hexagonal star frame structure 1 and the bottom hexagonal star frame structure 14 are relatively parallel up and down and centered. An automatic intelligent unfolding and closing rod system 3 is provided between the top hexagonal star frame structure 1 and the bottom hexagonal star frame structure 14. The edges of the top hexagonal star frame structure 1 and the bottom hexagonal star frame structure 14 and the automatic intelligent unfolding and closing rod system 3 are respectively connected through the transition connecting rod member system 2 to form the overall structural framework of the building structure unit.
[0033] As Figure 1 shown in the figure, it is a three-dimensional structure schematic diagram of a building structure unit suitable for lunar habitation described in the present utility model in the unfolded state on the moon. It mainly includes: a top hexagonal star frame structure 1, a transition connecting rod member system 2, an automatic intelligent unfolding and closing rod system 3, a ring 4, a hexagonal star upper cover rod system 5, a rigid node 6, a connecting rod 7, a universal hinge 8, an external rod of the unfolding system 9, an internal rod of the unfolding system 10, a multi-stage intelligent automatic telescopic hydraulic cylinder 11, an external hinge disc 12, an internal hinge disc 13, a bottom hexagonal star frame structure 14, etc. The specific structure is as follows:
[0034] The top hexagonal star frame structure 1 is provided with a ring 4, a hexagonal star upper cover rod system 5, and a rigid node 6. Twelve rods of the hexagonal star upper cover rod system 5 are connected in pairs at the vertices through the rigid node 6 and are fixedly connected equidistantly around the periphery of the ring 4. Having the same structure as the top hexagonal star frame structure 1, the bottom hexagonal star frame structure 14 is provided with a ring, a hexagonal star lower cover rod system, and a rigid node. Twelve rods of the hexagonal star lower cover rod system are connected in pairs at the vertices through the rigid node and are fixedly connected equidistantly around the periphery of the ring. One end of the connecting rod 7 of the transition connecting rod member system 2 is installed with a universal hinge 8. In the top hexagonal star frame structure 1 and the bottom hexagonal star frame structure 14, the rigid nodes of the hexagonal star upper cover rod system 5 and the hexagonal star lower cover rod system are respectively connected to the automatic intelligent unfolding and closing rod system 3 in sequence through the connecting rod 7 and the universal hinge 8 in a circumferential direction to form a structural unit.
[0035] First, the pairwise-connected rods of the hexagonal star-shaped upper cover rod system 5 are connected into six groups of V-shaped rods through rigid joints 6, and the six groups of V-shaped rods are circumferentially fixed on the ring 4 to form the top hexagonal star-shaped frame structure 1. It is required that the stiffness of the frame structure in and out of the plane is large enough. The bottom hexagonal star-shaped frame structure 14 is of the same size as the top hexagonal star-shaped frame structure 1 and has the same rod system structure. Secondly, the connecting rods 7 are connected through universal hinges 8 to form a transition connecting rod system 2. The connecting rods 7 can freely rotate 45 degrees in three rotation directions around the universal hinges 8. Thirdly, the external rods 9 of the deployment system and the internal rods 10 of the deployment system are connected to each other through multi-stage intelligent automatic telescopic hydraulic cylinders 11, external hinge plates 12, and internal hinge plates 13 to form an automatic intelligent deployment and closing rod system 3. The connection between the external hinge plates 12 and the internal hinge plates 13 and the external rods 9 and the internal rods 10 of the deployment system should ensure a certain free rotation angle and a reliable connection. Finally, the top hexagonal star-shaped frame structure 1, the bottom hexagonal star-shaped frame structure 14, and the automatic intelligent deployment and closing rod system 3 are hinged through the transition connecting rod system 2 to form a structural unit. When the structural unit is deployed, it is necessary to ensure that the centers of the top hexagonal star-shaped frame structure 1 and the bottom hexagonal star-shaped frame structure 14 are on the same vertical line. Furthermore, the movement of the multi-stage intelligent automatic telescopic hydraulic cylinders 11 of the automatic intelligent deployment and closing rod system 3 drives the transition connecting rod system 2, the top hexagonal star-shaped frame structure 1, and the bottom hexagonal star-shaped frame structure 14, thereby realizing the deployment and closing functions of the overall structural unit.
[0036] As Figures 4 - 7 shown, the automatic intelligent deployment and closing rod system 3 shown in the figure of the present utility model Figure 1 mainly includes: the external rods 9 of the deployment system, the internal rods 10 of the deployment system, multi-stage intelligent automatic telescopic hydraulic cylinders 11, external hinge plates 12, and internal hinge plates 13. The specific structure is as follows:
[0037] The vertical external hinge plate 12 and the internal hinge plate 13 are parallel to each other and the midpoint of the center lines is on the same horizontal positioning line. The internal hinge plate 13 has the same structure as the external hinge plate 12, and the outer diameter of the internal hinge plate 13 is smaller than the outer diameter of the external hinge plate 12; the center of the external hinge plate 12 is provided with an external hinge plate center hole 16, and four grooves symmetrically opened on the outer periphery of the external hinge plate 12 are respectively provided with freely rotatable bolt rods 15. One end of each external rod 9 of the deployment system is hinged to the bolt rod 15, and the other end of each external rod 9 of the deployment system is connected to the connecting rod 7 through a universal hinge 8; similarly, the center of the internal hinge plate 13 is provided with an internal hinge plate center hole, and four grooves symmetrically opened on the outer periphery of the internal hinge plate 13 are respectively provided with freely rotatable bolt rods. One end of each internal rod 10 of the deployment system is hinged to the bolt rod, and the other end of each internal rod 10 of the deployment system is connected to a sliding sleeve 20 on the internal rod 10 of the deployment system, so that the other end of the internal rod 10 of the deployment system is in sliding fit with the internal rod 10 of the deployment system;
[0038] One end of the horizontal multi-stage intelligent automatic telescopic hydraulic cylinder 11 is installed in the central hole 16 of the outer hinge disc, and the other end of the multi-stage intelligent automatic telescopic hydraulic cylinder 11 is installed in the central hole of the inner hinge disc, so that the outer hinge disc 12 and the inner hinge disc 13 are connected by the multi-stage intelligent automatic telescopic hydraulic cylinder 11 to realize compression and extension. The external rod 9 of the deployment system and the internal rod 10 of the deployment system rotate relative to each other through the bolt rod 15 at the joint. In addition, the external rod 9 of the deployment system, the internal rod 10 of the deployment system, the outer hinge disc 12 and the inner hinge disc 13 are all made of metal materials, and the bolt rod is a metal rod with a polytetrafluoroethylene coating on its surface.
[0039] As Figure 2 shown, the present utility model Figure 1 Top view during deployment, mainly including: top hexagonal star frame structure 1, circular ring 4, hexagonal star upper cover rod system 5, rigid node 6, connecting rod 7, universal hinge 8, external rod 9 of the deployment system, internal rod 10 of the deployment system, multi-stage intelligent automatic telescopic hydraulic cylinder 11, outer hinge disc 12, inner hinge disc 13, bottom hexagonal star frame structure 14. Specifically, the top view perspectives of the top hexagonal star frame structure 1 and the bottom hexagonal star frame structure 14 during closing and deployment are completely coincident. When the structural unit is closed, the telescopic end of the multi-stage intelligent automatic telescopic hydraulic cylinder 11 extends outward along the central hole 16 of the outer hinge disc; on the contrary, when the structural unit is deployed, the telescopic end of the multi-stage intelligent automatic telescopic hydraulic cylinder 11 contracts inward along the central hole 16 of the outer hinge disc, and the connecting rod 7 and the external rod 9 of the deployment system can rotate freely around the universal hinge 8.
[0040] As Figure 3 shown, the present utility model Figure 1 Elevation view during deployment, mainly including: top hexagonal star frame structure 1, automatic intelligent deployment and closing rod system 3, rigid node 6, connecting rod 7, universal hinge 8, external rod 9 of the deployment system, internal rod 10 of the deployment system, multi-stage intelligent automatic telescopic hydraulic cylinder 11, outer hinge disc 12, inner hinge disc 13, bottom hexagonal star frame structure 14. Specifically, the angle α between the upper and lower external rods 9 of the deployment system connected to the outer hinge disc 12 is not greater than 150 degrees when the structural unit is fully deployed to ensure the stability of the overall structure. When the structural unit is fully deployed, it is ensured that the connecting rod 7 and the external rod 9 of the deployment system are on the same straight line to ensure that the main axial force is carried under vertical combined action.
[0041] As Figure 8 shown, Figure 4Schematic diagram of a multi-stage intelligent automatic telescopic hydraulic cylinder, mainly composed of a first-stage hydraulic cylinder 17, a second-stage hydraulic cylinder 18, and a third-stage hydraulic cylinder 19 that can automatically telescope. According to actual needs, the number of stages can be increased. Specifically, when expanding the structural unit, it is necessary to fill the multi-stage intelligent automatic telescopic hydraulic cylinder 11 with gas. The cylinder body of the hydraulic cylinder elongates due to the air pressure, and the outer hinge plate 12 and the inner hinge plate 13 will have relative displacement as the multi-stage intelligent automatic telescopic hydraulic cylinder 11 elongates. Since the universal hinge 8 can provide a certain angle of rotation to the external rod 9 of the deployment system, the automatic intelligent deployment and the contraction of the closing rod system 3 are realized. When it contracts to the limit state (that is, there is no interference between the rods, and the external rod 9 and the internal rod 10 of the deployment system can work normally), the multi-stage hydraulic cylinder is strengthened and sealed to prevent gas leakage during transportation.
[0042] In summary, the utility model has the advantages of simple structure, saving transportation costs, and intelligent automation to monthly assembly, providing a reference for the design and construction of lunar buildings.
Claims
1. A building structure unit suitable for living on the moon, characterized in that: The building structure unit is composed of a top hexagonal star frame structure, a bottom hexagonal star frame structure, a transition connection rod system, and an automatic intelligent expansion and closing rod system. The top hexagonal star frame structure and the bottom hexagonal star frame structure are relatively parallel and centrally positioned. An automatic intelligent expansion and closing rod system is arranged between the top hexagonal star frame structure and the bottom hexagonal star frame structure. The edges of the top hexagonal star frame structure and the bottom hexagonal star frame structure are respectively connected to the automatic intelligent expansion and closing rod system through a transition connection rod system, forming the overall structural skeleton of the building structure unit.
2. The building structure unit suitable for living on the moon according to claim 1, characterized in that: The top hexagonal star frame structure is provided with a circular ring, a hexagonal star upper cover rod system, and rigid nodes. The rods of the hexagonal star upper cover rod system are connected at the vertices of two by rigid nodes in a group and are equidistantly fixed around the periphery of the circular ring; the bottom hexagonal star frame structure is the same as the top hexagonal star frame structure. It is provided with a circular ring, a hexagonal star lower cover rod system, and rigid nodes. The rods of the hexagonal star lower cover rod system are connected at the vertices of two by rigid nodes in a group and are equidistantly fixed around the periphery of the circular ring; the transition connection rod system is a universal hinge installed at one end of the connecting rod. In the top hexagonal star frame structure and the bottom hexagonal star frame structure, the rigid nodes of the hexagonal star upper cover rod system and the hexagonal star lower cover rod system are respectively connected to the automatic intelligent expansion and closing rod system in turn through the connecting rod and the universal hinge of the transition connection rod system to form a structural unit.
3. The building structure unit suitable for living on the moon according to claim 2, characterized in that: Two-by-two rods of the hexagonal star upper cover rod system are connected into six groups of V-shaped rods through rigid nodes, and the six groups of V-shaped rods are surrounded and fixed on a circular ring to form a top hexagonal star frame structure; similarly, two-by-two rods of the hexagonal star lower cover rod system are connected into six groups of V-shaped rods through rigid nodes, and the six groups of V-shaped rods are surrounded and fixed on a circular ring to form a bottom hexagonal star frame structure.
4. The building structure unit suitable for living on the moon according to claim 2, characterized in that: The connecting rod can rotate freely 45 degrees in three directions around the universal joint.
5. The building structure unit suitable for living on the moon according to claim 2, characterized in that: When the structural unit is unfolded, the centers of the top hexagonal star frame structure and the bottom hexagonal star frame structure are on the same vertical line.
6. The building structure unit suitable for living on the moon according to claim 2, characterized in that: The angle α of the external rods of the upper and lower unfolding systems connected by the external hinged plates is not greater than 150 degrees when the structural unit is fully unfolded.
7. The building structure unit suitable for living on the moon according to claim 2, characterized in that: When the structural unit is deployed, the connecting rod and the external rod of the deployment system are on the same straight line.
8. The building structure unit suitable for living on the moon according to claim 2, characterized in that: The automatic intelligent unfolding and closing rod system includes: an unfolding system external rod, an unfolding system internal rod, a multi-stage intelligent automatic telescopic hydraulic cylinder, an external hinge plate, and an internal hinge plate. The specific structure is as follows: The vertical outer hinge disk is parallel to the inner hinge disk and the midline points are on the same horizontal positioning line. The inner hinge disk has the same structure as the outer hinge disk, and the outer diameter of the inner hinge disk is smaller than the outer diameter of the outer hinge disk; an outer hinge disk center hole is provided in the center of the outer hinge disk, and four grooves symmetrically opened on the outer circumference of the outer hinge disk are respectively provided with bolt rods that can rotate freely, one end of each deployment system external rod is hinged to the bolt rod, and the other end of each deployment system external rod is connected to the connecting rod through a universal hinge; similarly, an inner hinge disk center hole is provided in the center of the inner hinge disk, and four grooves symmetrically opened on the outer circumference of the inner hinge disk are respectively provided with bolt rods that can rotate freely, one end of each deployment system internal rod is hinged to the bolt rod, and the other end of each deployment system internal rod is connected to the sliding sleeve on the deployment system internal rod, so that the other end of the deployment system internal rod is in sliding cooperation with the deployment system internal rod; the outer hinge disk and the inner hinge disk are connected by a multi-stage intelligent automatic telescopic hydraulic cylinder, and the deployment system external rod and the deployment system internal rod rotate with each other through the bolt rod at the joint.
9. The building structure unit suitable for living on the moon according to claim 8, characterized in that: One end of the horizontal multi-stage intelligent automatic telescopic hydraulic cylinder is installed at the center hole of the outer hinge plate, and the other end of the multi-stage intelligent automatic telescopic hydraulic cylinder is installed at the center hole of the inner hinge plate.
10. The building structure unit suitable for living on the moon according to claim 8, characterized in that: The multi-stage intelligent automatic telescopic hydraulic cylinder is composed of more than two stages of hydraulic cylinders that can automatically telescope.