CN210074161U - Stretching device for flexible metamaterial - Google Patents
Stretching device for flexible metamaterial Download PDFInfo
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- CN210074161U CN210074161U CN201920948615.5U CN201920948615U CN210074161U CN 210074161 U CN210074161 U CN 210074161U CN 201920948615 U CN201920948615 U CN 201920948615U CN 210074161 U CN210074161 U CN 210074161U
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Abstract
The application discloses a stretching device for a flexible metamaterial, which belongs to the field of mechanical devices and comprises a rotating disk, a fixed disk, a pressing plate, a locking pin, a first screw, a handle, a shaft, a second screw, a bearing, a pressing sheet, a nut, a ring, a third screw and a sliding block assembly; a round hole mounting bearing is arranged in the center of the rotating disc; the outer ring of the ring pressing bearing is fixed on the rotating disc through a third screw; the shaft penetrates through the bearing and is fixed with the bearing inner ring through the pressing sheet and the nut; the fixed disc is fixed on the shaft through a second screw and a threaded hole at one end of the shaft; elongated openings are uniformly distributed on the fixed disc, and the sliding block assembly slides along the elongated openings; the pressing plate fixes the flexible metamaterial on the sliding block assembly through a first screw; arc-shaped openings are uniformly distributed on the rotating disc, and the sliding block assembly moves along the arc-shaped openings; the locking pin is fixedly connected with the handle, the circumferential edge of the fixed disc is provided with a positioning hole for inserting the locking pin, and the handle is pushed in and pulled out of the opening of the rotating disc. And uniform stretching of the flexible metamaterial is realized.
Description
Technical Field
The utility model belongs to the mechanical device field relates to a stretching device of flexible metamaterial.
Background
The metamaterial has great application prospect in the fields of stealth technology, communication technology, sensing technology and the like. The upper layer structure of the metamaterial is usually designed into a metal array unit, different material attributes are realized through different array structure designs, therefore, the configuration of the metal array unit can be dynamically adjusted to change parameters such as dielectric constant, magnetic conductivity and the like of the metamaterial, and further dynamic reconstruction of performance is realized.
With the development of flexible electronic technology, it has become possible to design and prepare a flexible and large-deformation metamaterial, a flexible and stretchable deformable organic material is used as a substrate layer of a metamaterial structure, a conductive material with fluidity or large strain capacity is designed as an electrical unit of the metamaterial structure, and an electrical mechanism is dynamically reconstructed through the mechanical deformation capacity of the flexible metamaterial, so that the adjustment of parameters such as dielectric constant, magnetic permeability and the like of the metamaterial can be realized. But the stretching of the flexible metamaterial at present has uneven problems, and the working performance of the flexible metamaterial can be influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the stretching that the correlation technique can have inhomogeneous problem to flexible metamaterial, probably influence the problem of flexible metamaterial's working property, the utility model provides a stretching device of flexible metamaterial. The technical scheme is as follows:
provided is a stretching device of a flexible metamaterial, comprising: the device comprises a rotating disc, a fixed disc, a pressing plate, a locking pin, a first screw, a handle, a shaft, a second screw, a bearing, a pressing sheet, a nut, a ring, a third screw and a sliding block assembly; a round hole is formed in the center of the rotating disc and used for mounting a bearing; the outer ring of the ring pressing bearing is fixed on the rotating disc through a third screw; the shaft penetrates through the bearing and is fixed with the inner ring of the bearing through the pressing sheet and the nut; one end of the shaft is provided with a threaded hole, and the fixed disc is fixed on the shaft through the matching of a second screw and the threaded hole; elongated openings are uniformly distributed on the fixed disc along the radial direction, and the sliding block assemblies are clamped on two sides of the elongated openings and slide along the long edges of the elongated openings; on one surface, far away from the rotating disc, of the fixed disc, the flexible metamaterial is fixed on the sliding block assembly through a first screw by the pressure plate; arc-shaped openings are uniformly distributed on the rotating disc, the sliding block assembly penetrates through the arc-shaped openings, and the sliding block assembly moves along the arc-shaped openings when the rotating disc rotates; the locking pin is fixedly connected with the handle, a preset number of positioning holes are formed in the circumferential edge of the fixed disc and used for inserting the locking pin, open holes are formed in the circumferential edge of the rotary disc, the handle is clamped in the open holes of the rotary disc and pushed and pulled out of the open holes to drive the locking pin to be inserted into and pulled out of the positioning holes.
The flexible metamaterial is fixed through the sliding block assembly, and under the rotating fit of the fixed disc and the rotating disc, the stress of the flexible metamaterial in all directions is more uniform, and the requirement of the flexible metamaterial on the stretching uniformity is met. The stretching device changes rotation into linear motion, and the stretching of the flexible metamaterial is more labor-saving through structures such as bearings.
Optionally, the sliding block assembly comprises a rod, a fixing sheet, an installation frame, a steel pipe, a fixing plate and a fourth screw; the middle part of the mounting frame is hollow, the steel pipes are arranged on two sides inside the mounting frame, the fixing plate is tightly pressed on the mounting frame through fourth screws, and the fourth screws penetrate through the steel pipes and are fixed on the fixing plate; the fixed plate and the fixed plate are respectively positioned on two sides of the fixed disk, the fixed plate is positioned on one surface of the fixed disk close to the rotating disk, and the rod is fixed on the fixed plate through end threads; the fixed plate and the fixed plate limit the sliding block component to slide along the long edge of the long strip-shaped opening of the fixed plate; the rod passes through the arc-shaped opening of the rotating disk and moves along the guide of the arc-shaped opening when the rotating disk rotates.
The main body of the sliding block assembly slides in the long-strip-shaped opening of the fixed disc, and the rod on the sliding block assembly moves along the guide of the arc-shaped opening of the rotating disc, so that the rotating disc rotates and is matched with the rod through the arc-shaped opening to transmit the rotation to the sliding block assembly to slide along the long-strip-shaped opening, and the flexible metamaterial is stretched.
Optionally, the fixed disk and the rotating disk are equal in size.
Optionally, the number of the elongated openings on the fixed disk is equal to the number of the arc-shaped openings on the rotating disk.
Optionally, the inner end of the elongated opening in the fixed disk corresponds to the inner end of the arc-shaped opening in the rotating disk, and the outer end of the elongated opening in the fixed disk corresponds to the outer end of the arc-shaped opening in the rotating disk when the rotating disk rotates to the maximum value.
Optionally, the circumferential edge of the fixed disk is symmetrically provided with a predetermined group of positioning holes, and the positioning holes at two ends of each group of positioning holes respectively correspond to the maximum rotation value and the minimum rotation value of the rotating disk; the distance and the number of the positioning holes in each group are determined according to the stretching precision.
The fixing of the flexible metamaterial at any stretching position can be realized by changing the distance and the number of the positioning holes in the fixing disc, and the stretching requirements of different precisions are met.
Optionally, the number of the openings on the circumferential edge of the rotating disk is less than or equal to the number of the positioning holes on the fixed disk.
Through set up a plurality of trompils on the rotary disk, the trompil of not installing the handle can be convenient for the observation of locating hole position.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic structural diagram of a stretching device for a flexible metamaterial according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a stretching device for a flexible metamaterial according to another embodiment of the present invention;
fig. 3 is a schematic view illustrating the installation of a rotating disk and a fixed disk according to an embodiment of the present invention;
fig. 4 is a schematic structural view illustrating a sliding block assembly mounted on a fixed plate according to an embodiment of the present invention;
fig. 5 is a schematic view of the locking pin and the handle when the stretching apparatus according to an embodiment of the present invention is locked;
fig. 6 is a schematic structural diagram of a sliding block assembly according to an embodiment of the present invention.
Wherein the reference numbers are as follows:
1. rotating the disc; 2. fixing the disc; 3. pressing a plate; 4. a flexible metamaterial; 5. a locking pin; 6. a first screw; 7. a rod; 8. a handle; 9. a shaft; 10. a second screw; 11. a bearing; 12. tabletting; 13. a nut; 14. a loop; 15. a third screw; 16. a sliding block assembly; 17. a fixing sheet; 18. installing a frame; 19. a steel pipe; 20. a fixing plate; 21. and a fourth screw.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
With the development of flexible electronic technology, it has become possible to design and prepare a flexible and large-deformation metamaterial, a flexible and stretchable deformable organic material is used as a substrate layer of a metamaterial structure, a conductive material with fluidity or large strain capacity is designed as an electrical unit of the metamaterial structure, and an electrical mechanism is dynamically reconstructed through the mechanical deformation capacity of the flexible metamaterial, so that the adjustment of parameters such as dielectric constant, magnetic permeability and the like of the metamaterial can be realized. But the stretching of the flexible metamaterial at present has uneven problems, and the working performance of the flexible metamaterial can be influenced.
Aiming at the characteristic that the structure form and the material property of the prior metamaterial are fixed after the microstructure is designed manually, the application provides the stretching device of the flexible metamaterial. The flexible metamaterial stretching device provided by the present application is illustrated with reference to fig. 1 to 6.
With combined reference to fig. 1 to 5, the stretching device for the flexible metamaterial includes: the device comprises a rotating disk 1, a fixed disk 2, a pressure plate 3, a locking pin 5, a first screw 6, a handle 8, a shaft 9, a second screw 10, a bearing 11, a pressing sheet 12, a nut 13, a ring 14, a third screw 15 and a sliding block assembly 16; a round hole is formed in the center of the rotating disc 1 and used for mounting a bearing 11; the outer ring of the ring 14 pressing bearing 11 is fixed on the rotating disc 1 through a third screw 15; the shaft 9 passes through the bearing 11 and is fixed with the inner ring of the bearing 11 through a pressing sheet 12 and a nut 13; one end of the shaft 9 is provided with a threaded hole, and the fixed disc 2 is fixed on the shaft 9 through the matching of a second screw 10 and the threaded hole; elongated openings are uniformly distributed on the fixed disc 2 along the radial direction, and the sliding block assemblies 16 are clamped on two sides of the elongated openings and slide along the long edges of the elongated openings; on one surface, far away from the rotating disc, of the fixed disc 2, the flexible metamaterial is fixed on the sliding block assembly 16 through the pressure plate 3 through the first screw 6; arc-shaped openings are uniformly distributed on the rotating disc 1, the sliding block assembly 16 penetrates through the arc-shaped openings, and the sliding block assembly 16 moves along the arc-shaped openings when the rotating disc 1 rotates; the stop pin 5 is fixedly connected with the handle 8, the circumferential edge of the fixed disk 2 is provided with a predetermined number of positioning holes, the positioning holes are used for inserting the stop pin 5, the circumferential edge of the rotating disk 1 is provided with open holes, the handle 8 is clamped in the open holes of the rotating disk 1 and is pushed and pulled out of the open holes without departing from the rotating disk 1, and the stop pin 5 is driven to be inserted into and pulled out of the positioning holes.
Optionally, the handle 8 is pushed in and pulled out from one surface of the rotating disc 1, which is far away from the fixed disc 2, when the handle 8 is pulled out, the locking pin 5 is driven to be pulled out from the positioning hole, the rotating disc 1 can rotate, and when the handle 8 is pushed in, the locking pin 5 is driven to be inserted into the positioning hole, so that the relative rotation of the rotating disc 1 and the fixed disc 2 is limited.
Optionally, referring to fig. 6 in combination, the sliding block assembly 16 includes a rod 7, a fixing plate 17, a mounting frame 18, a steel pipe 19, a fixing plate 20, and a fourth screw 21; the middle part of the mounting frame 18 is hollow, the steel pipes 19 are arranged at two sides of the inside of the mounting frame 18, the fixing plate 20 is pressed on the mounting frame 18 by the fourth screw 21, the fourth screw 21 penetrates through the steel pipes 19 to be fixed on the fixing plate 17, and the steel pipes 19 can rotate on the fourth screw 21; the fixed plate 20 and the fixed plate 17 are respectively positioned at two sides of the fixed disc 2, the fixed plate 20 is positioned at one surface of the fixed disc 2 close to the rotating disc 1, and the rod 7 is fixed on the fixed plate 20 through end threads; the fixing sheet 17 and the fixing plate 20 limit the sliding block assembly 16 to slide along the long side of the long strip-shaped opening of the fixed disc 2; the rod 7 passes through the arc-shaped opening of the rotating disk 1 and moves along the guide of the arc-shaped opening when the rotating disk 1 rotates.
Alternatively, the fixed disk 2 and the rotating disk 1 are equal in size.
Optionally, the number of the elongated openings on the fixed disk 2 is equal to the number of the arc-shaped openings on the rotating disk 1, and each sliding block assembly 16 corresponds to the elongated openings and the arc-shaped openings which penetrate through the sliding block assembly one to one.
In practical application, can increase the quantity of sliding block subassembly 16 as required for flexible metamaterial all directions atress is more even, satisfies the requirement of the higher tensile homogeneity of flexible metamaterial, and correspondingly, rectangular shape opening and arc open-ended quantity correspond with sliding block subassembly 16's quantity, and every sliding block subassembly 16 corresponds with a rectangular shape opening and an arc opening one-to-one.
Optionally, the positions of the inner side end of the elongated opening in the fixed disk 2 and the inner side end of the arc-shaped opening in the rotating disk 1 correspond to each other when the rotating disk 1 does not rotate relative to the fixed disk 2, and the positions of the outer side end of the elongated opening in the fixed disk 2 and the outer side end of the arc-shaped opening in the rotating disk 1 correspond to each other when the rotating disk 1 rotates to the maximum value.
Optionally, the circumferential edge of the fixed disk 2 is symmetrically provided with a predetermined group of positioning holes, and the positioning holes at two ends of each group of positioning holes respectively correspond to the maximum rotation value and the minimum rotation value of the rotating disk 1; the distance and the number of the positioning holes in each group are determined according to the stretching precision.
The plurality of groups of positioning holes are arranged, so that the fixing effect that the rotating disc 1 rotates to a certain position relative to the fixed disc 2 can be guaranteed. Illustratively, two sets of positioning holes are shown in FIG. 4, with 8 positioning holes per set.
The two positioning holes at the two ends of each group of positioning holes respectively correspond to the maximum rotation value and the minimum rotation value of the rotating disc 1 relative to the fixed disc 2, namely the sliding block assemblies 16 are positioned at the outer end parts and the inner end parts of the arc-shaped opening and the long-strip-shaped opening, the stretching range of the flexible metamaterial 4 is determined, and the stretching precision of the flexible metamaterial 4 is determined by the number and the interval of each group of positioning holes.
Optionally, the number of openings on the circumferential edge of the rotating disk 1 is less than or equal to the number of positioning holes on the fixed disk 2.
In practical application, each set of positioning holes corresponds to one handle 8 and one positioning pin 5, so the number of the openings on the rotating disk 1 corresponds to the number of the sets of positioning holes, and is at least equal to the number of the sets of positioning holes, for example, the number of the openings on the rotating disk 1 shown in the drawings of the application corresponds to the number and the positions of the positioning holes, and the positions of the positioning holes can be observed through the openings without the handles 8.
Exemplarily, taking the stretching device shown in fig. 1 and 2 as an example, in the stretching process of the stretching device, the handle 8 pulls out the positioning pin 5, the rotating disk 1 is rotated clockwise by holding the handle 8, so that the rod 7 moves from inside to outside in the arc-shaped opening of the rotating disk 1, and the sliding block assembly 16 is driven to slide from inside to outside in the elongated opening of the fixed disk 2, so as to realize uniform stretching of the flexible metamaterial 4, and stretch to a certain position, the handle 8 pushes the positioning pin 5 into the positioning hole of the fixed disk 2, the stretching position of the flexible metamaterial 4 is determined, and the subsequent test of the flexible metamaterial 4 can be performed. The rotating disc 1 is rotated anticlockwise, so that the flexible metamaterial 4 can be restored.
To sum up, the stretching device of flexible metamaterial that this application provided through the fixed flexible metamaterial of sliding block subassembly, under the normal running fit of fixed disk and rotary disk, makes the atress of each direction of flexible metamaterial more even, has satisfied the requirement of flexible metamaterial to the drawing homogeneity. The stretching device changes rotation into linear motion, and the stretching of the flexible metamaterial is more labor-saving through structures such as bearings.
In addition, the main body of the sliding block assembly slides in the long-strip-shaped opening of the fixed disc, and the rod on the sliding block assembly moves along the guide of the arc-shaped opening of the rotating disc, so that the rotation of the rotating disc is transmitted to the sliding block assembly through the matching of the arc-shaped opening and the rod to slide along the long-strip-shaped opening, and the flexible metamaterial is stretched.
In addition, the fixing of any stretching position of the flexible metamaterial can be realized by changing the distance and the number of the positioning holes in the fixing disc, and the stretching requirements of different precisions are met.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.
Claims (7)
1. A stretching device for flexible metamaterial is characterized by comprising: the device comprises a rotating disc, a fixed disc, a pressing plate, a locking pin, a first screw, a handle, a shaft, a second screw, a bearing, a pressing sheet, a nut, a ring, a third screw and a sliding block assembly;
a round hole is formed in the center of the rotating disc and used for mounting the bearing; the outer ring of the bearing is pressed by the ring and is fixed on the rotating disc through the third screw; the shaft penetrates through the bearing and is fixed with the inner ring of the bearing through the pressing sheet and the nut; one end of the shaft is provided with a threaded hole, and the fixed disc is fixed on the shaft through the matching of the second screw and the threaded hole;
the fixed disc is uniformly provided with strip-shaped openings along the radial direction, and the sliding block assemblies are clamped on two sides of the strip-shaped openings and slide along the long edges of the strip-shaped openings;
on one surface, far away from the rotating disc, of the fixed disc, the pressing plate fixes the flexible metamaterial on the sliding block assembly through the first screw;
arc-shaped openings are uniformly distributed in the rotating disc, the sliding block assemblies penetrate through the arc-shaped openings, and the sliding block assemblies move along the arc-shaped openings when the rotating disc rotates;
the locking pin is fixedly connected with the handle, a preset number of positioning holes are formed in the circumferential edge of the fixed disc and used for being inserted into the locking pin, open holes are formed in the circumferential edge of the rotating disc, the handle is clamped in the open holes of the rotating disc and pushed and pulled out of the open holes to drive the locking pin to be inserted into and pulled out of the positioning holes.
2. The stretching device of the flexible metamaterial according to claim 1, wherein the sliding block assembly comprises a rod, a fixing plate, a mounting frame, a steel pipe, a fixing plate, a fourth screw;
the middle part of the mounting frame is hollow, the steel pipes are arranged on two sides inside the mounting frame, the fixing plate is pressed on the mounting frame through the fourth screws, and the fourth screws penetrate through the steel pipes and are fixed on the fixing plate; the fixed plate and the fixed plate are respectively positioned on two sides of the fixed disc, the fixed plate is positioned on one surface of the fixed disc close to the rotating disc, and the rod is fixed on the fixed plate through end threads;
the fixed sheet and the fixed plate limit the sliding block assembly to slide along the long edge of the long strip-shaped opening of the fixed disc;
the rod passes through the arc-shaped opening of the rotating disc and moves along the guide of the arc-shaped opening when the rotating disc rotates.
3. The stretching device of flexible metamaterial according to claim 1, wherein the fixed disk and the rotating disk are equal in size.
4. The stretching device of the flexible metamaterial according to claim 1, wherein the number of the elongated openings on the fixed disk is equal to the number of the arc-shaped openings on the rotating disk.
5. The stretching device of the flexible metamaterial according to claim 4, wherein the inner end of the elongated opening in the fixed disk corresponds to the inner end of the arc-shaped opening in the rotating disk in position, and the outer end of the elongated opening in the fixed disk corresponds to the outer end of the arc-shaped opening in the rotating disk in position when the rotating disk rotates to the maximum value.
6. The stretching device for the flexible metamaterial according to claim 4, wherein the circumferential edge of the fixed disk is symmetrically provided with a predetermined set of positioning holes, and the positioning holes at two ends of each set of positioning holes correspond to the maximum rotation value and the minimum rotation value of the rotating disk respectively; the distance and the number of the positioning holes in each group are determined according to the stretching precision.
7. The stretching device for the flexible metamaterial according to any one of claims 1 to 6, wherein the number of the openings on the circumferential edge of the rotating disc is less than or equal to the number of the positioning holes on the fixed disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920948615.5U CN210074161U (en) | 2019-06-21 | 2019-06-21 | Stretching device for flexible metamaterial |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920948615.5U CN210074161U (en) | 2019-06-21 | 2019-06-21 | Stretching device for flexible metamaterial |
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| CN210074161U true CN210074161U (en) | 2020-02-14 |
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| CN201920948615.5U Active CN210074161U (en) | 2019-06-21 | 2019-06-21 | Stretching device for flexible metamaterial |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113146558A (en) * | 2021-04-01 | 2021-07-23 | 中车青岛四方机车车辆股份有限公司 | Assembling device for pipelines |
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2019
- 2019-06-21 CN CN201920948615.5U patent/CN210074161U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113146558A (en) * | 2021-04-01 | 2021-07-23 | 中车青岛四方机车车辆股份有限公司 | Assembling device for pipelines |
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