CN111173870A - Cylindrical paper folding and rebounding mechanism with gap structure - Google Patents
Cylindrical paper folding and rebounding mechanism with gap structure Download PDFInfo
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- CN111173870A CN111173870A CN201911400456.6A CN201911400456A CN111173870A CN 111173870 A CN111173870 A CN 111173870A CN 201911400456 A CN201911400456 A CN 201911400456A CN 111173870 A CN111173870 A CN 111173870A
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- paper folding
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
Abstract
The invention discloses a cylinder type paper folding rebounding mechanism with a gap structure, which is formed by folding a plane material according to a specifically designed crease, has certain rigidity and elasticity, and generates compression deformation along the axial direction and rebounding force when being axially extruded. The rebounding mechanism disclosed by the invention is novel in structure, simple and convenient to manufacture, lower in cost, good in mechanical property and convenient to transport.
Description
Technical Field
The invention relates to a rebound mechanism, in particular to a cylindrical paper folding rebound mechanism with a gap structure.
Background
In the fields of machine parts, construction equipment, precision electronic instruments, and the like, a large number of resilient mechanisms are required. The normal operation of machinery can be guaranteed through the displacement direction that changes the structure to the resilience mechanism, perhaps plays reconversion, guarantees safe effect, and current resilience structure mainly can realize through spring or mechanical structure, and these structures exist to a certain extent and are difficult to guarantee life, can not satisfy the use of multiple occasion, and the great scheduling problem of cost.
As a novel space structure, a paper folding structure is widely applied in different fields in recent years due to a foldable structure derived from rigid paper folding. The unique compressed and expanded state of the folded paper structure makes the different devices have unique advantages in processing, transportation, assembly, use and recovery, so that the folded paper structure is widely applied to different fields of medical treatment, construction, machinery and the like. Compared with paper folding structures in other shapes, the cylindrical paper folding structure has the advantages that the cylindrical paper folding structure is more uniform in stress and more complete in material use through the cylindrical shape, and can be widely applied to the fields of buildings, machinery and the like.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a cylindrical paper folding rebounding mechanism with a gap structure. The specific technical scheme is as follows:
a cylinder type paper folding rebounding mechanism with a gap structure is formed by folding a plane material according to a specifically designed crease, has certain rigidity and elasticity, and generates compression deformation along the axial direction and rebounding force when being axially extruded;
the cylindrical paper folding springback mechanism is of a periodically repeated structure in the circumferential direction, each unit of the cylindrical paper folding springback mechanism is provided with two types of vertexes which are respectively an outward convex vertex and an inward concave vertex, the convex vertex and the concave vertex are arranged in a staggered mode, three of four creases extending from a certain vertex are in the same category, the other crease is in a relative category, for the convex vertex, the three creases in the same category are folded ridges, the other crease is folded valleys, in four areas divided by the four creases, the angle of the area with the smaller corresponding angle is α, the angle of the area with the larger corresponding angle is 180- α, for the concave vertex, the angles of the three creases in the same category are folded valleys, the angle of the area with the smaller corresponding angle is β, the angle of the area with the larger corresponding angle is 180- β, α and β are acute angles, and α is larger than β.
Further, the cylinder type paper folding resilience mechanism comprises a gap structure, wherein the gap structure is realized by inwards folding the top point of the paper folding structure, so that the number of paper folding creases is increased, and the rigidity and resilience performance of the cylinder type paper folding resilience mechanism are increased.
Further, the cylinder type paper folding rebounding mechanism is unfolded to be in a plane configuration, the folding and unfolding operations of the cylinder type paper folding rebounding mechanism are reversible, and included angles formed by all the crossed creases are kept unchanged in the unfolding and folding processes; the dihedral angle formed by the planes on both sides of the fold changes during folding and unfolding, and when the dihedral angle is 0 degrees, the cylindrical rebound mechanism is completely folded, and when the dihedral angle is 180 degrees, the cylindrical rebound mechanism is completely unfolded.
The invention has the beneficial effects that:
(1) the cylindrical paper folding rebounding mechanism with the gap structure has good rebounding performance and has buffering and anti-seismic effects on external force;
(2) the structure resilience performance is improved by increasing the number of folds through the gap structure, the structure rigidity is adjusted, and the structure is suitable for various working conditions with different rigidity requirements;
(3) the invention has novel structure, simple and convenient manufacture, lower cost, good structural mechanical property and convenient transportation.
Drawings
FIG. 1 is a diagram of a paper-based model of the present invention.
FIG. 2 is a plan fold view of the present invention, wherein solid lines represent ridges and dashed lines represent valleys, the same applies hereinafter.
Fig. 3a and 3b are detailed views of the convex apex element and the concave apex element, respectively, of the present invention.
Figure 4 is a detailed view of the gap structure fold.
Fig. 5 is an application scenario of the rebounding mechanism of the present invention applied to a working cylinder, which respectively includes:
a is a schematic view of the cylindrical resilient mechanism in an extended state.
b is a schematic view of the cylindrical resilient mechanism when compressed.
Reference numbers in the figures: 1-a piston; 2, a piston cylinder; 3-cylindrical springback mechanism.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments, and the objects and effects of the invention will become more apparent. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the paper-based model of the cylinder-type paper folding and rebounding mechanism with a gap structure of the present invention is formed by folding a planar material according to a specifically designed crease, has certain rigidity and elasticity, and generates compression deformation along the axial direction and rebounding force when the cylinder-type paper folding and rebounding mechanism is axially pressed;
the cylinder type paper folding rebound mechanism is of a periodic repeating structure in the circumferential direction, a specific plane crease pattern of the rebound mechanism is shown in figure 2, except for edges, a solid line represents a ridge, namely the crease position is convex upwards and is in a ridge shape after being folded, a dotted line represents a valley, namely the crease position is concave downwards and is in a valley shape after being folded, the ridge and the valley are opposite, the crease of the ridge is in a valley shape after being folded, the other surface is the valley when viewed from one surface, the ridge and the valley are both determined under the condition of facing the outer surface of the cylinder structure, two types of vertexes are arranged in the cylinder type paper folding rebound mechanism, namely convex vertexes which are convex outwards and concave vertexes which are inwards, the convex vertexes and the concave vertexes are arranged in a staggered mode, the unit detail diagram of the two types of vertexes is shown in figure 3, four creases extending from a certain vertex are in four, wherein three of the four creases are in the same type, the other crease is in the opposite type, three of the same type are creases, the same type, the four regions divided by the creases are corresponding to four regions, the smaller regions, the corresponding angles are α degrees and the four regions are 180 degrees, the four regions corresponding to the smaller angles are the four alpha-beta, the regions, the four opposite types of the four creases are the four opposite types of the four, the four creases, the four alpha-180 degrees are the opposite types of the peaks, the.
The cylinder type paper folding resilience mechanism is a paper folding structure with a gap structure, the gap structure is a small area structure added on a convex vertex and a concave vertex of the paper folding structure, a crease figure of the gap structure is shown in figure 4, the gap structure is realized by inwards folding the vertex of the cylinder type paper folding resilience mechanism, the resilience performance of the structure is improved by increasing the number of the creases, and the rigidity of the structure is adjusted.
The rebound mechanism of the invention can be used in various application scenes, such as dampers, anticollision and the like, in various places needing buffering or energy absorption, fig. 5 is an application example of the invention, a cylinder type paper folding rebound mechanism 3 with a gap structure is placed in a piston cylinder 2, two ends of the cylinder type paper folding rebound mechanism 3 are respectively connected with the bottom of the piston cylinder 2 and a piston 1, in an initial state, the piston 1 is propped against the upper part of the piston cylinder 2 by the cylinder type paper folding rebound mechanism 3, when the piston 1 is acted by external load to generate force along the axial direction of the cylinder type paper folding rebound mechanism 3, an external device needing to rebound and the piston 1 generate downward displacement together, so that the cylinder type paper folding rebound mechanism 3 is compressed to generate rebound force, the piston 1 and the external device continue to move downward, when the piston 1 and the external device are compressed to a certain degree, the speeds of the piston 1 and the external device are reduced to zero, at the moment, the rebound force of the cylinder type, the cylinder type paper folding rebounding mechanism 3 starts rebounding, so that the piston 1 and an external device needing rebounding generate opposite speeds, displacement opposite to the initial speed is generated, and the rebounding effect is achieved.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and although the invention has been described in detail with reference to the foregoing examples, it will be apparent to those skilled in the art that various changes in the form and details of the embodiments may be made and equivalents may be substituted for elements thereof. All modifications, equivalents and the like which come within the spirit and principle of the invention are intended to be included within the scope of the invention.
Claims (3)
1. The utility model provides a contain cartridge type paper folding resilience mechanism of clearance structure which characterized in that, cartridge type paper folding resilience mechanism is folded according to the crease of specific design by plane material and is formed, has certain rigidity and elasticity, and when cartridge type paper folding resilience mechanism receives axial extrusion, produces compression deformation along the axis direction, produces the resilience force simultaneously.
the cylindrical paper folding springback mechanism is of a periodically repeated structure in the circumferential direction, each unit of the cylindrical paper folding springback mechanism is provided with two types of vertexes which are respectively an outward convex vertex and an inward concave vertex, the convex vertex and the concave vertex are arranged in a staggered mode, three of four creases extending from a certain vertex are in the same category, the other crease is in a relative category, for the convex vertex, the three creases in the same category are folded ridges, the other crease is folded valleys, in four areas divided by the four creases, the angle of the area with the smaller corresponding angle is α, the angle of the area with the larger corresponding angle is 180- α, for the concave vertex, the angles of the three creases in the same category are folded valleys, the angle of the area with the smaller corresponding angle is β, the angle of the area with the larger corresponding angle is 180- β, α and β are acute angles, and α is larger than β.
2. The cylinder type paper folding rebounding mechanism with the gap structure as claimed in claim 1, wherein the cylinder type paper folding rebounding mechanism comprises a gap structure, and the gap structure is realized by folding the vertex of the paper folding structure inwards, so that the number of paper folding creases is increased, and the rigidity and rebounding performance of the cylinder type paper folding rebounding mechanism are increased.
3. The cylinder type paper folding rebounding mechanism with the gap structure as claimed in claim 2, characterized in that the cylinder type paper folding rebounding mechanism is unfolded into a plane configuration, and the folding and unfolding operations of the cylinder type paper folding rebounding mechanism are reversible, and the included angle formed by all the intersecting folds is kept constant during the unfolding and folding processes; the dihedral angle formed by the planes on both sides of the fold changes during folding and unfolding, and when the dihedral angle is 0 degrees, the cylindrical rebound mechanism is completely folded, and when the dihedral angle is 180 degrees, the cylindrical rebound mechanism is completely unfolded.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911400456.6A CN111173870A (en) | 2019-12-30 | 2019-12-30 | Cylindrical paper folding and rebounding mechanism with gap structure |
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| CN201911400456.6A CN111173870A (en) | 2019-12-30 | 2019-12-30 | Cylindrical paper folding and rebounding mechanism with gap structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113236705A (en) * | 2021-04-06 | 2021-08-10 | 广州大学 | Adjustable energy absorbing device based on paper folding structure |
| CN114150909A (en) * | 2021-11-16 | 2022-03-08 | 重庆大学 | Repeatable energy dissipation structure based on rigid paper folding-cutting structure |
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| CN114150909B (en) * | 2021-11-16 | 2022-09-02 | 重庆大学 | Repeatable energy consumption structure based on rigid folding-paper cutting structure |
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Application publication date: 20200519 |