CN114516482A - Application of heat-sensitive spiral spring in flexible filling container - Google Patents
Application of heat-sensitive spiral spring in flexible filling container Download PDFInfo
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- CN114516482A CN114516482A CN202111619387.5A CN202111619387A CN114516482A CN 114516482 A CN114516482 A CN 114516482A CN 202111619387 A CN202111619387 A CN 202111619387A CN 114516482 A CN114516482 A CN 114516482A
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- spring
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- memory alloy
- filled container
- heat
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- 229910001285 shape-memory alloy Inorganic materials 0.000 claims abstract description 32
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- HZEWFHLRYVTOIW-UHFFFAOYSA-N [Ti].[Ni] Chemical compound [Ti].[Ni] HZEWFHLRYVTOIW-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910001000 nickel titanium Inorganic materials 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 6
- 238000001354 calcination Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract description 5
- 230000004044 response Effects 0.000 abstract description 4
- 238000004146 energy storage Methods 0.000 abstract description 3
- 230000002441 reversible effect Effects 0.000 abstract description 3
- 238000004804 winding Methods 0.000 abstract description 3
- 238000003860 storage Methods 0.000 description 8
- 238000012360 testing method Methods 0.000 description 6
- 108020004414 DNA Proteins 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000004744 fabric Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000011056 performance test Methods 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010411 cooking Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 229920001872 Spider silk Polymers 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 108091081406 G-quadruplex Proteins 0.000 description 1
- 206010017577 Gait disturbance Diseases 0.000 description 1
- 241001417101 Gymnotidae Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 241000237852 Mollusca Species 0.000 description 1
- 240000005561 Musa balbisiana Species 0.000 description 1
- 235000018290 Musa x paradisiaca Nutrition 0.000 description 1
- 241000270295 Serpentes Species 0.000 description 1
- 206010053615 Thermal burn Diseases 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000002068 genetic effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D33/00—Details of, or accessories for, sacks or bags
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F3/00—Coiling wire into particular forms
- B21F3/02—Coiling wire into particular forms helically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F35/00—Making springs from wire
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F35/00—Making springs from wire
- B21F35/006—Double twist coil springs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cookers (AREA)
Abstract
The present invention relates to the use of a heat sensitive helical spring in a flexible filled container, the spring acting as a self-supporting actuating switch for the flexible filled container. Can realize folding at will and accomodate under the room temperature, the heating is automatic struts rapidly in the use, fills the seal switch of container volume. By utilizing the characteristics of large restorable deformation and large output force of the shape memory alloy SMA, the idea of winding an intelligent spring by adopting a nickel-titanium shape memory alloy wire according to a DNA double-spiral structure is provided, and a simple and automatically-stretched spring driving element is expected to be made to serve as a sealing switch by combining the energy storage characteristic of the spring and the characteristic of the deformation reversible repeated output force of the shape memory alloy. Compared with the prior art, the invention can realize automatic extension to cause volume expansion, does not need circuit driving, and has simple structure, quick response, low price and good universality.
Description
Technical Field
The invention relates to the field of coil springs, in particular to an application of a thermosensitive coil spring in a flexible filling container.
Background
According to statistics, the two biggest potential safety hazards in the family are as follows: (1) the rope in the family easily leads to children to twine danger such as stifling and stumbling and fall injury. (2) Stove etc. heating burn and scald: the skin of the children is thinner than that of the adults, the children can be seriously scalded when a cup of hot coffee is heated for 5 seconds, and the scalding is easily caused when the cookware, the stove, the electric kettle and the like which are just stopped heating are at 70-90 ℃ by mistake of the children.
If a series of convenient safety protection appliances designed for young children exist, the safety of the children at home can be improved, parents can feel relieved to let the children do housework, and the self-care ability is exercised. At present, no simple and cheap automatic safety protection appliance for children family life exists.
The satellite antenna made of shape memory alloy is a metal material engineering application which can completely eliminate the deformation of the Shape Memory Alloy (SMA) at a lower temperature after heating and temperature rise and recover the original shape of the SMA before deformation, namely realizes the design of small-volume storage and large-area expansion, namely has the characteristic of memory effect, as shown in figure 1.
SMA is also widely used in orthodontic appliances, various endoluminal stents and surgical sutures. In addition, the shape memory alloy material is applied to valves for controlling the water temperature of bathroom water pipes, starting fire-fighting alarm devices and heating. It is mainly used as a structural material in our lives and there is no disclosure of a self-ejecting drive element for various safety protection appliances.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the application of the thermosensitive spiral spring in the flexible filling container, which can realize automatic expansion to cause volume expansion, does not need circuit driving, and has simple structure, quick response, low price and good universality.
The purpose of the invention can be realized by the following technical scheme:
the invention relates to a sealing switch which can be designed and manufactured for solving the problem of safety risk of a storage bag rope and a cooking range in a family to a young child, can be folded and stored at will at room temperature, can be heated quickly and automatically to be unfolded when in use, and can be used for filling the volume of a container.
According to the characteristics of large restorable deformation and large repeated expansion and contraction of the shape memory alloy, the invention provides an assumption that the Shape Memory Alloy (SMA) wire is adopted to manufacture springs in different forms, and the characteristics of energy storage of the spring and reversible repeated output force of deformation of the shape memory alloy wire are hopefully combined to manufacture a simple, economic and intelligent driving spring element. The drive spring can be placed in the inner container of containers such as large-caliber storage bags, ball toys, heat-proof safety appliances and the like, can be folded and stored at will at room temperature, can be heated for a short time during use and can automatically extend, and the purpose of filling and supporting various containers in large volume is achieved. The SMA drive spring can solve the problems of large occupied space and inconvenient carrying of a large-volume container, does not need electric energy of a battery, and has the advantages of quick response, simple structure, low price and good universality.
Use of a heat sensitive coil spring in a flexible refill container, the spring acting as a self-supporting actuating switch for the flexible refill container.
Further, the structure of the spring is a single spiral, a double spiral or a triple spiral.
The inventor knows that many plants and animals in nature have the spiral structure and shape of the spring, for example, the body skeleton of electric eels and snakes is the spring structure, and the spring structure provides enough volume reduction capability for the mollusks to avoid natural enemies. The internal structure of the spider silk is also formed by three different spiral forms, so that great elasticity and contractility are provided, and the spider silk of the swordsman in the movie also has scientific principles. Genetic DNA is also a well-known double helix structure, which provides great structural stability and complementarity, and local DNA can also form triple or even quadruple helix forms. The double helix has two main chains that spiral in a right hand direction around a common axis like a "twist" providing extra deformation, as shown in figure 2. Therefore, in the present invention, a spring that mimics the structure of DNA and is made into a single helix, a double helix, or a triple helix is selected. The four parameters of the structure, width, diameter and number of the spiral spring in the invention are designed as shown in figures 3-4.
Furthermore, the material of the spring is shape memory alloy.
Furthermore, the material of the spring is nickel-titanium memory alloy.
Furthermore, the diameter D of the spring is 1-4cm, and the pitch L is 1-7 cm.
Furthermore, the diameter D of the spring is 1-2cm, and the pitch L is 1.8-2.2 cm.
Further, the number of the spiral of the spring is 4-36 groups.
Further, the number of the spiral of the spring is 4-8 groups.
Further, the specific method of the application is as follows:
after the spring is calcined, the shape of the spring is fixed to a shrinkage state, and then the spring is cooled to room temperature;
the spring is attached to the flexible refill container and, after the spring is heated, the spring expands to expand the flexible refill container. The flexible filling container comprises a receiving bag, a kitchen transparent protective cover inner container or a doll.
Further, the calcining temperature is 350-450 ℃, and the time is 10-20 min; the heating temperature is 60-70 ℃.
Compared with the prior art, the invention designs and manufactures the sealing switch which can realize random folding and storage at room temperature, rapid and automatic opening of heating and volume filling of a container aiming at the problem of safety risk brought to young children by a storage bag rope and a cooking range in a family. By utilizing the characteristics of large restorable deformation and large output force of the shape memory alloy SMA, the idea of winding an intelligent spring by adopting a nickel-titanium shape memory alloy wire according to a DNA double-spiral structure is proposed, and a simple and automatically-stretched spring driving element is made to serve as a sealing switch by combining the energy storage characteristic of the spring and the characteristic of reversible output force of deformation of the shape memory alloy.
Drawings
FIG. 1 is a schematic diagram of shape memory alloy deformation recovery;
FIG. 2 shows the superlarge deformation of the DNA elastic rod model;
FIG. 3 is a schematic diagram of the spiral geometry design of the present invention;
FIG. 4 is a schematic diagram of the structural design of three types of spirals according to the present invention;
FIG. 5 is a diagram of the sizing, winding and testing process at room temperature for a nickel-titanium memory alloy wire in accordance with the present invention;
FIG. 6 is a photograph of a sample of a spring used in the study of the present invention;
FIG. 7 is a comparison experiment of response rates of the SMA springs of different lengths according to the present invention, which automatically elongate after being heated;
FIG. 8 is a comparison of the spring heat-stretching process of the present invention;
FIG. 9 is a demonstration experiment of the driving force of the spring expanding after being heated in the present invention;
fig. 10 is an expanded view of the storage bag filled with spring elements of the optimized size of example 2 after being heated by a hair dryer;
figure 11 is a living item with SMA springs as temperature-sensitive self-expanding and supporting.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.
The invention adopts nickel-titanium memory alloy wire with the diameter of 1.0mm, the output force of about 800MPa and the pre-deformation of about 4-5 percent, and if necessary, metal scissors pliers, a vernier caliper, an electronic timer, a ceramic tube mould with the diameter of 1-4cm, a heating table, a heating furnace, a beaker, tap water, a hair drier, a plurality of household cloth, non-woven fabric, a sponge block and transparent heat-resistant plastic cloth.
Specific parameters for the preparation of the coil spring are shown in table 1 below. A nickel-titanium memory alloy wire was used to wrap the spring around different ceramic tubes with a diameter of 1-4cm as shown in fig. 5. The shape was then heat-set for 15 minutes using a 400 ℃ oven and taken out to cool to room temperature. The spring sample will then be heated to 60-70 ℃ with an electric blower and hot water, and the extension time and ejection force will be observed and recorded. And finally, placing the spring sample with high elasticity and highest deformation speed into a large bag and a protective cover container made of household cloth, non-woven fabric, a sponge block and transparent heat-resistant plastic cloth, and observing the volume change time and the volume increase of the containers after being heated.
Fig. 6 shows photographs of test samples of different spiral diameters, spiral widths, spiral lengths and spiral configurations. The dimensional accuracy of the sample preparation has a deviation of 0.05-0.10cm, limited by the accuracy of the spring preparation tool.
TABLE 1 specific parameters and Performance test protocol for spiral preparation
Example 1
In this embodiment, the spring has a single-spiral structure, and the specific parameters are shown in table 2
TABLE 2 Performance test data for Single spiral Structure
The data results show that: the fastest extending sample of single coil springs was 2cm in width and 2cm in diameter and contained 4 sets of coils with an initial 5 second extension time and a full 29 second extension time, see figure 7. And all the single coil spring samples studied could achieve more than 20 winding-elongation tests.
Example 2
In this embodiment, the spring has a double-spiral structure, and the specific parameters are shown in Table 3
TABLE 3 Performance test data for double helix structure
The data for the double coil spring sample shows that: the fastest expanding spring sample geometry was 2cm in width and 2cm in diameter, containing 4 sets of helices, and had an initial elongation time of 9-11 seconds and a full elongation time of 35-61 seconds. And all the double coil spring samples studied can achieve more than 20 winding-elongation tests, see fig. 8. Fig. 8(a-b) the morphology of the double coil spring before and after undergoing repeated winding-heating elongation for 20 cycles, and (c) the morphology of the process of heating and stretching the three coil structure springs.
Example 3
In this embodiment, the spring has a triple-helical structure, and the specific parameters are shown in table 4
TABLE 4 Performance test data for triple helix structures
The data for the triple coil spring sample shows that: the geometry of the most rapidly stretched spring sample is also 2cm in width and 2cm in diameter, and contains 4 sets of spirals, the stretching starting time of the spring sample is 19-20 seconds, and all tested samples cannot achieve complete stretching after being heated for 10 minutes. Therefore, the winding-elongation properties of the three-coil spring sample were not continuously tested. In the test, the reason that the three-coil spring cannot be fully extended is found that the three-coil structure has inconsistent extension speed, so that the spiral structure rotates at a large angle, is inserted and wound for the second time, as shown in fig. 8(c), and thus mutual resistance of extension is formed.
The heating test data aiming at the thrust of the single spiral spring, the double spiral spring and the spiral spring sample show that the thrust of the three spiral springs is the largest, the thrust of the single spiral spring is the weakest in the double spiral times as shown in figure 9.
Experimental observations and analysis of the above spring samples found: the spiral shape and the spiral width of the spring are the most important factors influencing the stretching and the elastic force, the width is 2cm, the diameter is 2cm, and the double-spiral spring containing 4 groups of spiral structures has the characteristics of quickest stretching and shortest complete stretching time and can also provide larger thrust. The double spiral springs of 5 and 3 are respectively arranged in the containing bag and the rubber doll, and the containing bag and the doll are rapidly expanded and spread in the electric hair drier heating process, as shown in figure 10. But the doll's volume is increased more because the material of the banana doll is more easily stretched. This experiment demonstrates that spring with single and double helix structure made of shape memory alloy can provide repeated instantaneous expansion and expansion function after heating with heat source such as household hair dryer and hot water, i.e. short time heating at 60 deg.C.
The number of the double-spiral structure springs is selected according to the volume, the mass and the use temperature heat source of the target container, and the springs are sealed in the inner container, such as three product cases which are possibly applied in families and are shown in figure 11. The SMA double-coil spring is sealed in the storage bag opening in the picture 11(a), the design of rope knotting and sealing is replaced, and children can hold the hair drier to heat the spring position and can open the storage bag. Fig. 11(b) is a diagram that SMA double-spiral springs are placed in an inner container of a transparent protective cover of a kitchen to serve as a supporting frame, the SMA double-spiral springs can be placed at the upper end of a cooking bench which stops heating and above a pot stove with steam emitting, when the temperature of a heat source is higher than 60 ℃, the length of the springs in the inner container rapidly extends to form silk threads, and the silk threads are expanded to fill or form a supporting framework, so that a low-age child can rapidly know that high-temperature parts cannot be touched. If the container needs to be stored again, the container can be put into cold water, and the container can be immediately restored to the original shape. The spring can also be installed inside a doll that children like, fig. 11(c), and the spring is used as a temperature alarm, when the temperature of a certain place is too high, the alarm doll rapidly expands, and parents and children are intuitively and rapidly reminded.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention will still fall within the protection scope of the technical solution of the present invention.
Claims (10)
1. Use of a heat-sensitive helical spring in a flexible refill container, wherein the spring is used as a self-supporting actuating switch for the flexible refill container.
2. Use of a heat sensitive coil spring in a flexible filled container according to claim 1 wherein the spring is configured as a single coil, double coil or triple coil.
3. Use of a heat sensitive coil spring in a flexible refill container according to claim 2, wherein the spring is formed from a shape memory alloy.
4. Use of a heat sensitive coil spring in a flexible filled container according to claim 3 wherein the spring is of a nickel-titanium memory alloy.
5. Use of a heat sensitive helical spring in a flexible filled container according to claim 2, wherein the spring has a diameter D of 1-4cm and a pitch L of 1-7 cm.
6. Use of a heat sensitive helical spring in a flexible filled container according to claim 5, wherein the spring has a diameter D of 1-2cm and a pitch L of 1.8-2.2 cm.
7. Use of a heat sensitive helical spring in a flexible filled container according to claim 2, wherein the number of helices of said spring is in the range of 4-36 sets.
8. Use of a heat sensitive helical spring in a flexible filled container according to claim 7, wherein the number of helices of said spring is in the range of 4-8 sets.
9. Use of a heat sensitive coil spring in a flexible filled container according to any of claims 1 to 8 by the specific method of:
after the spring is calcined, the shape of the spring is fixed to a shrinkage state, and then the spring is cooled to room temperature;
the spring is attached to the flexible refill container and, after the spring is heated, the spring expands to expand the flexible refill container.
10. The use of a heat-sensitive coil spring in a flexible filled container as claimed in claim 9, wherein the calcination temperature is 350-450 ℃ for 10-20 min; the heating temperature is 60-70 ℃.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111619387.5A CN114516482A (en) | 2021-12-27 | 2021-12-27 | Application of heat-sensitive spiral spring in flexible filling container |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111619387.5A CN114516482A (en) | 2021-12-27 | 2021-12-27 | Application of heat-sensitive spiral spring in flexible filling container |
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| CN202111619387.5A Pending CN114516482A (en) | 2021-12-27 | 2021-12-27 | Application of heat-sensitive spiral spring in flexible filling container |
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