CN110313686B - Remote intelligent monitoring device for children - Google Patents
Remote intelligent monitoring device for children Download PDFInfo
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- CN110313686B CN110313686B CN201910598370.2A CN201910598370A CN110313686B CN 110313686 B CN110313686 B CN 110313686B CN 201910598370 A CN201910598370 A CN 201910598370A CN 110313686 B CN110313686 B CN 110313686B
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- waterproof
- fixing
- watchband
- top surface
- end cover
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- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
- A44C5/00—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
- A44C5/0007—Bracelets specially adapted for other functions or with means for attaching other articles
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- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
- A44C5/00—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
- A44C5/02—Link constructions
- A44C5/04—Link constructions extensible
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
- A44C5/00—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
- A44C5/14—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps characterised by the way of fastening to a wrist-watch or the like
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- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
- A44C5/00—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
- A44C5/18—Fasteners for straps, chains or the like
- A44C5/20—Fasteners for straps, chains or the like for open straps, chains or the like
- A44C5/2071—Fasteners for straps, chains or the like for open straps, chains or the like with the two ends of the strap or chain overlapping each other and fastened by an action perpendicularly to the main plane of these two ends
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Abstract
The invention provides a remote monitoring device for children, which comprises a bracelet body, wherein the bracelet body comprises a fixed base, an installation groove of an intelligent bracelet is arranged at the middle position of the top surface of the fixed base, a waterproof end cover is arranged at the position of the top surface of the fixed base, a left watchband is arranged at the position of the left side surface of the fixed base, a right watchband is arranged at the position of the right side surface of the fixed base, and a connecting and fixing buckle is arranged at the position between the left watchband and the right watchband; this device adopts waterproof rubber, itself just has water-proof effects, in addition the cooperation of waterproof strip, the waterproof effect that plays that can be better, respectively be provided with two fixed inserted bars simultaneously, can guarantee the watchband and be connected the joint strength between the fixed knot, avoid droing, the structure of this device is comparatively simple, and the cost is comparatively cheap, is fit for using widely.
Description
Technical Field
The invention belongs to the field of hand ornaments, and particularly relates to a remote intelligent monitoring device for children.
Background
Child supervision indicates according to legal provisions to children's personal safety, the supervision and the protection of property and other legal interests, an intelligent bracelet is provided among the prior art, but when traditional intelligent bracelet was worn, the same with ordinary wrist-watch, two watchbands were provided to can wear on hand, but many consciousness of children are all relatively poor, for example, kids like to play water, although general intelligent bracelet all has certain waterproof function, but will certainly harm the bracelet, based on above-mentioned problem, need provide a guardianship device that can solve the problem.
The paraffin and organic silicon type waterproof agent adopted by people in the early period is poor in cycle performance and needs to be sprayed frequently, so that the perfluoro eight-carbon waterproof agent is promoted to be used widely by the clothing industry at present. With the use, it is found that the by-products such as PFOA (perfluorooctanoic acid ammonium) generated in the production process are not easily degraded and can be released into water sources and atmosphere by heat, soaking, ultraviolet rays and the like, causing harm to human beings and other animals and plants. Scientists have now spot-tested the presence of this compound in human and animal blood samples from all over the world. Although no relevant legislation has been made to date to indicate the risk of PFOA carcinogenesis and to address PFOA limitations, the German Federal environmental agency (UBA) has proposed to list PFOA in a list of chemicals suspected of being toxic to the reproductive system.
The prior art does not have enough green and safe waterproof rubber.
Disclosure of Invention
The invention aims to solve the technical problem of providing a remote intelligent monitoring device for children.
The invention is realized by the following technical scheme:
the utility model provides a long-range intelligent guardianship device of children, includes bracelet body, bracelet body includes unable adjustment base, the intermediate position department of unable adjustment base top surface is provided with the mounting groove of intelligent bracelet, the position department of unable adjustment base top surface is provided with waterproof end cover, the position department of unable adjustment base left surface is provided with left watchband, the position department of unable adjustment base right flank is provided with right watchband, left side watchband with position department between the watchband of the right side is provided with connects fixed the knot, the position department on left side watchband surface is provided with the cooperation connect a plurality of draw-in grooves of fixed knot, the position department on right side watchband surface is provided with the cooperation connect a plurality of first draw-in grooves of fixed knot.
Preferably, the connecting and fixing buckle comprises a fixing plate, wherein fixing insertion rods are arranged at positions, close to the left side and the right side, of the top surface and the bottom surface of the fixing plate, and extending ends are arranged at positions, far away from the fixing plate, of the fixing insertion rods.
Preferably, a visual groove is formed in the middle of the top surface of the waterproof end cover.
Preferably, the top surface of the fixed base is provided with fixed stoppers at the positions of the left and right sides of the waterproof end cover.
Preferably, four clamping blocks are arranged at the positions of the bottom surface of the waterproof end cover, fixing clamping grooves matched with the clamping blocks are arranged at the positions of the top surface of the fixing base, and expansion blocks are arranged at the positions of the bottoms of the clamping blocks.
Preferably, the position of the bottom surface of the waterproof end cover, which is close to the outer ring, is provided with a waterproof strip, and the position of the top surface of the fixed base is provided with a waterproof groove matched with the waterproof strip.
Preferably, two catching grooves are formed in the position, close to the bottom, of the front end face of the waterproof end cover.
Preferably, the fixing base, the waterproof end cover, the left band and the right band are all made of waterproof rubber.
Preferably, the waterproof rubber is prepared from fluororubber, polyurethane resin, a surfactant, a nano material, a cellulose-based waterproof additive and a ketone solvent;
the nano material is a nano metal material or a nano metal oxide material.
Preferably, the waterproof rubber is prepared from 2-3 parts of fluororubber, 0.2-0.5 part of thermoplastic polyurethane elastomer rubber, 0.1-0.5 part of surfactant, 0.5-3 parts of nano material, 0.1-0.5 part of cellulose-based waterproof additive and 0.8-1.5 part of ketone solvent by mass;
the nano material is a nano metal material or a nano metal oxide material.
Preferably, the fluororubber is any one of DAI-EL G-801 fluororubber, DAI-EL G-901 fluororubber, DAI-EL G-701 fluororubber, DAI-EL G-702 fluororubber and DAI-EL G-802 fluororubber.
Preferably, the surfactant is composed of any one or a mixture of two of an alkyl betaine type surfactant and a fluorocarbon surfactant in any ratio.
Preferably, the structural general formula of the betaine type surfactant is RN+(CH3)2CH2COO-Wherein R is a linear alkyl group with a carbon number of 12-18.
Preferably, the fluorocarbon surfactant is 3M fluorocarbon surfactant FC-4432 or 3M fluorocarbon surfactant FC-4430.
Preferably, the nano material is any one of nano silver particles, nano copper particles, nano zinc particles, nano magnesium oxide particles and nano zinc oxide particles.
Preferably, the preparation method of the cellulose-based waterproof additive comprises the steps of soaking the lignin fiber in fluorosilane liquid for 30-120 minutes, and drying the lignin fiber in a nitrogen flow at the temperature of 80-100 ℃ to obtain the cellulose-based waterproof additive;
the fluorosilane liquid is prepared by mixing trichloro- (1,1,2,2,3,3,4, 4-octafluorobutyl) silane and toluene according to the volume ratio of (1-2): 1.
Preferably, the ketone solvent is acetone, butanone or methyl isobutyl ketone.
Preferably, the preparation method of the waterproof rubber is as follows: adding the fluororubber, the nano material, the surfactant, the cellulose-based waterproof additive and the ketone solvent into a container, stirring for 1-5 hours at room temperature, adding the thermoplastic polyurethane elastomer rubber, continuously stirring for 12-24 hours, and drying for 1-2 hours at the constant temperature of 80-100 ℃ to obtain the fluororubber-based waterproof adhesive.
Preferably, the preparation method of the waterproof rubber is as follows: adding the fluororubber, the nano material, the surfactant, the cellulose-based waterproof additive and the ketone solvent into a container, stirring for 1-5 hours at room temperature, adding the thermoplastic polyurethane elastomer rubber, continuously stirring for 12-24 hours, drying for 1-2 hours at 80-90 ℃, heating to 110-120 ℃, and continuously drying for 1-2 hours to obtain the fluororubber.
The working principle of the invention is as follows:
at first take off the watchband of intelligent bracelet, then put into the mounting groove with the part in the middle of the intelligent bracelet, connect waterproof end cover through fixture block and fixed slot's cooperation after that, according to the thickness of child's arm, connect two watchbands with connecting fixed knot, visual groove can let child oneself see the time.
The invention has the beneficial effects that: this device adopts the waterproof rubber material, itself just has water-proof effects, in the cooperation of waterproof strip, the waterproof effect that plays that can be better, respectively is provided with two fixed inserted bars simultaneously, can guarantee the watchband and be connected the joint strength between the fixed knot, avoids droing, and the structure of this device is comparatively simple, and the cost is comparatively cheap, is fit for using widely.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the stationary base;
FIG. 3 is a schematic view of the connection of a waterproof end cap;
fig. 4 is a schematic view of the connection fastener.
Detailed Description
The present invention will be described in further detail with reference to the following examples, which are provided for illustration only and are not intended to limit the scope of the present invention.
Specifically, the sources or CAS numbers of the raw materials used in the following examples are as follows:
DAI-EL G-702 fluororubber, manufactured by Daiki Kogyo Co., Ltd.
Thermoplastic polyurethane elastomer rubber, TPU, is available from lebo plastic technologies ltd, suzhou under the model number 98A.
3M fluorocarbon surfactant FC-4430, manufactured by 3M company, USA.
Hexadecyl betaine, CAS No.: 693-33-4.
The nano silver has a diameter of 60-80nm and is purchased from Nanjing Xiancheng nanometer material science and technology Co.
Nanometer zinc with diameter of 60-80nm is purchased from Nanjing Xiancheng nanometer material science and technology Limited.
Nanometer magnesia, 50nm in diameter, was purchased from Nanjing Xiancheng nanometer materials science and technology Co.
Nanometer zinc oxide, 50nm in diameter, was purchased from Nanjing Xiancheng nanometer materials science and technology Co.
Lignocellulose was purchased from galleries, valley primary building materials science and technology ltd.
Trichloro- (1,1,2,2,3,3,4, 4-octafluorobutyl) silane, CAS No.: 375-63-3.
Toluene, CAS No.: 108-88-3.
Methyl isobutyl ketone, CAS number 108-10-1.
Example 1
As shown in fig. 1, fig. 2, fig. 3 and fig. 4, a children remote intelligent monitoring device includes a bracelet body 1, the bracelet body 1 includes a fixing base 101, the intermediate position department of fixing base 101 top surface is provided with the mounting groove 102 of intelligent bracelet, the position department of fixing base 101 top surface is provided with waterproof end cover 2, the position department of fixing base 101 left surface is provided with left watchband 103, the position department of fixing base 101 right surface is provided with right watchband 104, left watchband 103 with position department between the right watchband 104 is provided with connects fixed knot 105, the position department on left watchband 103 surface is provided with the cooperation connect a plurality of draw-in grooves 106 of fixed knot 105, the position department on right watchband 104 surface is provided with the cooperation connect a plurality of first draw-in grooves 107 of fixed knot 105.
The connecting fixing buckle 105 comprises a fixing plate 108, fixing insertion rods 109 are arranged at positions of the top surface and the bottom surface of the fixing plate 108 close to the left side and the right side, and an extending end 110 is arranged at the position of the fixing insertion rod 109 far away from the fixing plate 108.
A visual groove 201 is arranged in the middle of the top surface of the waterproof end cover 2.
The top surface of the fixed base 101 is provided with fixed stoppers 111 at the left and right sides of the waterproof end cover 2.
Example 2
As shown in fig. 1, fig. 2, fig. 3 and fig. 4, a children remote intelligent monitoring device includes a bracelet body 1, the bracelet body 1 includes a fixing base 101, the intermediate position department of fixing base 101 top surface is provided with the mounting groove 102 of intelligent bracelet, the position department of fixing base 101 top surface is provided with waterproof end cover 2, the position department of fixing base 101 left surface is provided with left watchband 103, the position department of fixing base 101 right surface is provided with right watchband 104, left watchband 103 with position department between the right watchband 104 is provided with connects fixed knot 105, the position department on left watchband 103 surface is provided with the cooperation connect a plurality of draw-in grooves 106 of fixed knot 105, the position department on right watchband 104 surface is provided with the cooperation connect a plurality of first draw-in grooves 107 of fixed knot 105.
The connecting fixing buckle 105 comprises a fixing plate 108, fixing insertion rods 109 are arranged at positions of the top surface and the bottom surface of the fixing plate 108 close to the left side and the right side, and an extending end 110 is arranged at the position of the fixing insertion rod 109 far away from the fixing plate 108.
A visual groove 201 is arranged in the middle of the top surface of the waterproof end cover 2.
The top surface of the fixed base 101 is provided with fixed stoppers 111 at the left and right sides of the waterproof end cover 2.
Four fixture blocks 202 are arranged at the bottom surface of the waterproof end cover 2, a fixing fixture slot 203 matched with the fixture block 202 is arranged at the top surface of the fixing base 101, and an expansion block 204 is arranged at the bottom of the fixture block 202.
Example 3
As shown in fig. 1, fig. 2, fig. 3 and fig. 4, a children remote intelligent monitoring device includes a bracelet body 1, the bracelet body 1 includes a fixing base 101, the intermediate position department of fixing base 101 top surface is provided with the mounting groove 102 of intelligent bracelet, the position department of fixing base 101 top surface is provided with waterproof end cover 2, the position department of fixing base 101 left surface is provided with left watchband 103, the position department of fixing base 101 right surface is provided with right watchband 104, left watchband 103 with position department between the right watchband 104 is provided with connects fixed knot 105, the position department on left watchband 103 surface is provided with the cooperation connect a plurality of draw-in grooves 106 of fixed knot 105, the position department on right watchband 104 surface is provided with the cooperation connect a plurality of first draw-in grooves 107 of fixed knot 105.
The connecting fixing buckle 105 comprises a fixing plate 108, fixing insertion rods 109 are arranged at positions of the top surface and the bottom surface of the fixing plate 108 close to the left side and the right side, and an extending end 110 is arranged at the position of the fixing insertion rod 109 far away from the fixing plate 108.
A visual groove 201 is arranged in the middle of the top surface of the waterproof end cover 2.
The top surface of the fixed base 101 is provided with fixed stoppers 111 at the left and right sides of the waterproof end cover 2.
Four fixture blocks 202 are arranged at the bottom surface of the waterproof end cover 2, a fixing fixture slot 203 matched with the fixture block 202 is arranged at the top surface of the fixing base 101, and an expansion block 204 is arranged at the bottom of the fixture block 202.
The bottom surface of the waterproof end cover 2 is provided with a waterproof strip 205 at a position close to the outer ring, and the top surface of the fixed base 101 is provided with a waterproof groove 206 matched with the waterproof strip 205.
Example 4
As shown in fig. 1, fig. 2, fig. 3 and fig. 4, a children remote intelligent monitoring device includes a bracelet body 1, the bracelet body 1 includes a fixing base 101, the intermediate position department of fixing base 101 top surface is provided with the mounting groove 102 of intelligent bracelet, the position department of fixing base 101 top surface is provided with waterproof end cover 2, the position department of fixing base 101 left surface is provided with left watchband 103, the position department of fixing base 101 right surface is provided with right watchband 104, left watchband 103 with position department between the right watchband 104 is provided with connects fixed knot 105, the position department on left watchband 103 surface is provided with the cooperation connect a plurality of draw-in grooves 106 of fixed knot 105, the position department on right watchband 104 surface is provided with the cooperation connect a plurality of first draw-in grooves 107 of fixed knot 105.
The connecting fixing buckle 105 comprises a fixing plate 108, fixing insertion rods 109 are arranged at positions of the top surface and the bottom surface of the fixing plate 108 close to the left side and the right side, and an extending end 110 is arranged at the position of the fixing insertion rod 109 far away from the fixing plate 108.
A visual groove 201 is arranged in the middle of the top surface of the waterproof end cover 2.
The top surface of the fixed base 101 is provided with fixed stoppers 111 at the left and right sides of the waterproof end cover 2.
Four fixture blocks 202 are arranged at the bottom surface of the waterproof end cover 2, a fixing fixture slot 203 matched with the fixture block 202 is arranged at the top surface of the fixing base 101, and an expansion block 204 is arranged at the bottom of the fixture block 202.
The bottom surface of the waterproof end cover 2 is provided with a waterproof strip 205 at a position close to the outer ring, and the top surface of the fixed base 101 is provided with a waterproof groove 206 matched with the waterproof strip 205.
Two catching grooves 207 are formed in the position, close to the bottom, of the front end face of the waterproof end cover 2.
The fixing base 101, the waterproof end cover 2, the left band 103 and the right band 104 are all made of waterproof rubber.
The waterproof rubber is prepared from 2.5 parts of DAI-EL G-702 fluororubber, 0.3 part of thermoplastic polyurethane elastomer rubber, 0.1 part of 3M fluorocarbon surfactant FC-4430, 0.5 part of nano zinc, 0.2 part of cellulose-based waterproof additive and 1.5 parts of methyl isobutyl ketone by mass.
The preparation method of the cellulose-based waterproof additive comprises the steps of soaking the lignin fiber in fluorosilane liquid for 60 minutes, and drying the lignin fiber in nitrogen flow at 90 ℃ to obtain the cellulose-based waterproof additive;
the fluorosilane liquid is prepared by mixing trichloro- (1,1,2,2,3,3,4, 4-octafluorobutyl) silane and toluene in a volume ratio of 2: 1.
The preparation method of the waterproof rubber comprises the following steps: adding DAI-EL G-702 fluororubber, nano zinc, 3M fluorocarbon surfactant FC-4430, cellulose-based waterproof additive and methyl isobutyl ketone into a container, stirring at room temperature for 1 hour, adding thermoplastic polyurethane elastomer rubber, continuously stirring for 24 hours, and drying at constant temperature of 90 ℃ for 2 hours to obtain the polyurethane elastomer.
Example 5
The structure of the remote intelligent monitoring device for children is the same as that of the embodiment 4, and only waterproof rubber is different.
The waterproof rubber is prepared from 2.5 parts of DAI-EL G-702 fluororubber, 0.3 part of thermoplastic polyurethane elastomer rubber, 0.1 part of 3M fluorocarbon surfactant FC-4430, 0.5 part of nano silver, 0.2 part of cellulose-based waterproof additive and 1.5 parts of methyl isobutyl ketone by mass.
The preparation method of the cellulose-based waterproof additive comprises the steps of soaking the lignin fiber in fluorosilane liquid for 60 minutes, and drying the lignin fiber in nitrogen flow at 90 ℃ to obtain the cellulose-based waterproof additive;
the fluorosilane liquid is prepared by mixing trichloro- (1,1,2,2,3,3,4, 4-octafluorobutyl) silane and toluene in a volume ratio of 2: 1.
The preparation method of the waterproof rubber comprises the following steps: adding DAI-EL G-702 fluororubber, nano silver, 3M fluorocarbon surfactant FC-4430, cellulose-based waterproof additive and methyl isobutyl ketone into a container, stirring at room temperature for 1 hour, adding thermoplastic polyurethane elastomer rubber, continuously stirring for 24 hours, and drying at constant temperature of 90 ℃ for 2 hours to obtain the polyurethane elastomer.
Example 6
The structure of the remote intelligent monitoring device for children is the same as that of the embodiment 4, and only waterproof rubber is different.
The waterproof rubber is prepared from 2.5 parts of DAI-EL G-702 fluororubber, 0.3 part of thermoplastic polyurethane elastomer rubber, 0.1 part of 3M fluorocarbon surfactant FC-4430, 0.5 part of nano zinc oxide, 0.2 part of cellulose-based waterproof additive and 1.5 parts of methyl isobutyl ketone by mass.
The preparation method of the cellulose-based waterproof additive comprises the steps of soaking the lignin fiber in fluorosilane liquid for 60 minutes, and drying the lignin fiber in nitrogen flow at 90 ℃ to obtain the cellulose-based waterproof additive;
the fluorosilane liquid is prepared by mixing trichloro- (1,1,2,2,3,3,4, 4-octafluorobutyl) silane and toluene in a volume ratio of 2: 1.
The preparation method of the waterproof rubber comprises the following steps: adding DAI-EL G-702 fluororubber, nano zinc oxide, 3M fluorocarbon surfactant FC-4430, cellulose-based waterproof additive and methyl isobutyl ketone into a container, stirring at room temperature for 1 hour, adding thermoplastic polyurethane elastomer rubber, continuously stirring for 24 hours, and drying at constant temperature of 90 ℃ for 2 hours to obtain the polyurethane elastomer.
Example 7
The structure of the remote intelligent monitoring device for children is the same as that of the embodiment 4, and only waterproof rubber is different.
The waterproof rubber is prepared from 2.5 parts of DAI-EL G-702 fluororubber, 0.3 part of thermoplastic polyurethane elastomer rubber, 0.1 part of 3M fluorocarbon surfactant FC-4430, 0.5 part of nano magnesium oxide, 0.2 part of cellulose-based waterproof additive and 1.5 parts of methyl isobutyl ketone by mass.
The preparation method of the cellulose-based waterproof additive comprises the steps of soaking the lignin fiber in fluorosilane liquid for 60 minutes, and drying the lignin fiber in nitrogen flow at 90 ℃ to obtain the cellulose-based waterproof additive;
the fluorosilane liquid is prepared by mixing trichloro- (1,1,2,2,3,3,4, 4-octafluorobutyl) silane and toluene in a volume ratio of 2: 1.
The preparation method of the waterproof rubber comprises the following steps: adding DAI-EL G-702 fluororubber, nano magnesium oxide, 3M fluorocarbon surfactant FC-4430, cellulose-based waterproof additive and methyl isobutyl ketone into a container, stirring at room temperature for 1 hour, adding thermoplastic polyurethane elastomer rubber, continuously stirring for 24 hours, and drying at constant temperature of 90 ℃ for 2 hours to obtain the polyurethane elastomer.
Example 8
The structure of the remote intelligent monitoring device for children is the same as that of the embodiment 4, and only waterproof rubber is different.
The waterproof rubber is prepared from 2.5 parts of DAI-EL G-702 fluororubber, 0.3 part of thermoplastic polyurethane elastomer rubber, 0.1 part of hexadecyl betaine, 0.5 part of nano magnesium oxide, 0.2 part of cellulose-based waterproof additive and 1.5 parts of methyl isobutyl ketone by mass.
The preparation method of the cellulose-based waterproof additive comprises the steps of soaking the lignin fiber in fluorosilane liquid for 60 minutes, and drying the lignin fiber in nitrogen flow at 90 ℃ to obtain the cellulose-based waterproof additive;
the fluorosilane liquid is prepared by mixing trichloro- (1,1,2,2,3,3,4, 4-octafluorobutyl) silane and toluene in a volume ratio of 2: 1.
The preparation method of the waterproof rubber comprises the following steps: adding DAI-EL G-702 fluororubber, nano magnesium oxide, hexadecyl betaine, cellulose-based waterproof additive and methyl isobutyl ketone into a container, stirring for 1 hour at room temperature, adding thermoplastic polyurethane elastomer rubber, continuously stirring for 24 hours, and drying at constant temperature of 90 ℃ for 2 hours to obtain the polyurethane elastomer.
Example 9
The structure of the remote intelligent monitoring device for children is the same as that of the embodiment 4, and only waterproof rubber is different.
The waterproof rubber is prepared from 2.5 parts of DAI-EL G-702 fluororubber, 0.3 part of thermoplastic polyurethane elastomer rubber, 0.1 part of surfactant, 0.5 part of nano magnesium oxide, 0.2 part of cellulose-based waterproof additive and 1.5 parts of methyl isobutyl ketone by mass;
the surfactant is obtained by uniformly mixing 3M fluorocarbon surfactant FC-4430 and hexadecyl betaine according to the volume ratio of 3: 1.
The preparation method of the cellulose-based waterproof additive comprises the steps of soaking the lignin fiber in fluorosilane liquid for 60 minutes, and drying the lignin fiber in nitrogen flow at 90 ℃ to obtain the cellulose-based waterproof additive;
the fluorosilane liquid is prepared by mixing trichloro- (1,1,2,2,3,3,4, 4-octafluorobutyl) silane and toluene in a volume ratio of 2: 1.
The preparation method of the waterproof rubber comprises the following steps: adding DAI-EL G-702 fluororubber, nano magnesium oxide, a surfactant, a cellulose-based waterproof additive and methyl isobutyl ketone into a container, stirring for 1 hour at room temperature, adding thermoplastic polyurethane elastomer rubber, continuously stirring for 24 hours, and drying at a constant temperature of 90 ℃ for 2 hours to obtain the polyurethane elastomer.
Example 10
The structure of the remote intelligent monitoring device for children is the same as that of the embodiment 4, and only waterproof rubber is different.
The waterproof rubber is prepared from 2.5 parts of DAI-EL G-702 fluororubber, 0.3 part of thermoplastic polyurethane elastomer rubber, 0.1 part of surfactant, 0.5 part of nano magnesium oxide, 0.2 part of cellulose-based waterproof additive and 1.5 parts of methyl isobutyl ketone by mass;
the surfactant is obtained by uniformly mixing 3M fluorocarbon surfactant FC-4430 and hexadecyl betaine according to the volume ratio of 3: 1.
The preparation method of the cellulose-based waterproof additive comprises the steps of soaking the lignin fiber in fluorosilane liquid for 60 minutes, and drying the lignin fiber in nitrogen flow at 90 ℃ to obtain the cellulose-based waterproof additive;
the fluorosilane liquid is prepared by mixing trichloro- (1,1,2,2,3,3,4, 4-octafluorobutyl) silane and toluene in a volume ratio of 2: 1.
The preparation method of the waterproof rubber comprises the following steps: adding DAI-EL G-702 fluororubber, nano magnesium oxide, a surfactant, a cellulose-based waterproof additive and methyl isobutyl ketone into a container, stirring for 1 hour at room temperature, adding thermoplastic polyurethane elastomer rubber, continuously stirring for 24 hours, drying for 1 hour at 90 ℃, heating to 120 ℃, and continuously drying for 1 hour to obtain the polyurethane elastomer.
Comparative example 1
The structure of the remote intelligent monitoring device for children is the same as that of the embodiment 4, and only waterproof rubber is different.
The waterproof rubber is prepared from 2.5 parts of DAI-EL G-702 fluororubber, 0.3 part of thermoplastic polyurethane elastomer rubber, 0.1 part of surfactant, 0.5 part of nano magnesium oxide, 0.2 part of cellulose-based waterproof additive and 1.5 parts of methyl isobutyl ketone by mass;
the surfactant is obtained by uniformly mixing 3M fluorocarbon surfactant FC-4430 and hexadecyl betaine according to the volume ratio of 3: 1.
The preparation method of the cellulose-based waterproof additive comprises the steps of soaking the lignin fiber in fluorosilane liquid for 60 minutes, and drying the lignin fiber in nitrogen flow at 90 ℃ to obtain the cellulose-based waterproof additive;
the fluorosilane liquid is prepared by mixing trichloro- (1,1,2,2,3,3,4, 4-octafluorobutyl) silane and toluene in a volume ratio of 2: 1.
The preparation method of the waterproof rubber comprises the following steps: adding DAI-EL G-702 fluororubber, nano magnesium oxide, a surfactant, a cellulose-based waterproof additive and methyl isobutyl ketone into a container, stirring for 1 hour at room temperature, adding thermoplastic polyurethane elastomer rubber, continuously stirring for 24 hours, and drying for 2 hours at a constant temperature of 120 ℃ to obtain the polyurethane elastomer.
Test example 1
Water permeability test
The rubber materials prepared according to examples 4 to 10 and comparative example 1 were subjected to a water permeability test using the weight loss method of ASTM E96-2012. Each material was tested 3 times under the same conditions, each for 24 hours, and the average of three times was taken.
The test results are shown in table 1.
Table 1 Water permeability test
| Water vapor transmission rate (g/m)2) | |
| Example 4 | 4.88 |
| Example 5 | 4.83 |
| Example 6 | 5.05 |
| Example 7 | 3.06 |
| Example 8 | 6.39 |
| Example 9 | 1.03 |
| Example 10 | 0.94 |
| Comparative example 1 | 1.88 |
As can be seen from the above table, the waterproof rubber used in the remote intelligent monitoring device for children provided by the invention generally has very good waterproof performance, and the water permeability in 24 hours is kept at a very low level. Among them, the nano material and the surfactant have a large influence on the water vapor transmission rate, especially the surfactant, and different surfactants can cause the water vapor transmission rate of the rubber to be greatly different.
Test example 2
Mechanical Property test
The mechanical properties of the waterproof rubbers obtained in examples 4 to 10 and comparative example 1 were measured. The test method refers to GB/T528-: the width of the working face is 6mm, the stretching speed is 500mm/min, and the test is carried out under the condition of room temperature.
The test results are shown in table 2.
TABLE 2 mechanical Properties test
| Tensile Strength (MPa) | Elongation at Break (%) | |
| Example 4 | 9.3 | 347 |
| Example 5 | 9.4 | 350 |
| Example 6 | 9.0 | 340 |
| Example 7 | 9.4 | 352 |
| Example 8 | 8.2 | 300 |
| Example 9 | 13.5 | 371 |
| Example 10 | 16.4 | 405 |
| Comparative example 1 | 9.0 | 343 |
As can be seen from the above table, the waterproof rubber used in the remote intelligent monitoring device for children provided by the present invention generally has good mechanical properties, wherein the mechanical properties of the rubber prepared in example 10 are the best, and from the above test results, it can be found that the subsequent drying method has a relatively large influence on the mechanical properties of the rubber, and the stepped drying effect is better.
Claims (8)
1. A children remote intelligent monitoring device is characterized by comprising a bracelet body, wherein the bracelet body comprises a fixed base, a mounting groove of an intelligent bracelet is arranged at the middle position of the top surface of the fixed base, a waterproof end cover is arranged at the position of the top surface of the fixed base, a left watchband is arranged at the position of the left side surface of the fixed base, a right watchband is arranged at the position of the right side surface of the fixed base, a connecting fixing buckle is arranged at the position between the left watchband and the right watchband, a plurality of clamping grooves matched with the connecting fixing buckle are arranged at the position of the surface of the left watchband, and a plurality of first clamping grooves matched with the connecting fixing buckle are arranged at the position of the surface of the right watchband;
the fixed base, the waterproof end cover, the left watchband and the right watchband are all made of waterproof rubber;
the waterproof rubber is prepared from fluororubber, thermoplastic polyurethane elastomer rubber, a surfactant, a nano material, a cellulose-based waterproof additive and a ketone solvent;
the waterproof rubber is prepared from 2-3 parts of fluororubber, 0.2-0.5 part of thermoplastic polyurethane elastomer rubber, 0.1-0.5 part of surfactant, 0.5-3 parts of nano material, 0.1-0.5 part of cellulose-based waterproof additive and 0.8-1.5 parts of ketone solvent by mass;
the preparation method of the cellulose-based waterproof additive comprises the steps of soaking the lignin fiber in fluorosilane liquid for 30-120 minutes, and drying the lignin fiber at 80-100 ℃ by nitrogen flow to obtain the cellulose-based waterproof additive;
the fluorosilane liquid is prepared by mixing trichloro- (1,1,2,2,3,3,4, 4-octafluorobutyl) silane and toluene according to the volume ratio of (1-2): 1;
the nano material is nano magnesium oxide particles;
the surfactant is composed of a mixture of an alkyl betaine type surfactant and a fluorocarbon surfactant according to the volume ratio of 1: 3.
2. The device for remotely and intelligently monitoring the children as claimed in claim 1, wherein the connecting fastener comprises a fixing plate, the top and bottom surfaces of the fixing plate are provided with fixing insertion rods at positions close to the left and right sides, and the position of the fixing insertion rod far from the fixing plate is provided with an extending end.
3. The device for remotely and intelligently monitoring the children as claimed in claim 1, wherein a visual slot is formed in the middle of the top surface of the waterproof end cap.
4. The device for remotely and intelligently monitoring the children as claimed in claim 1, wherein the top surface of the fixing base is provided with a fixing stop at the left and right sides of the waterproof end cap.
5. The device for remotely and intelligently monitoring the children as claimed in claim 1, wherein four clamping blocks are arranged at the bottom of the waterproof end cap, a fixing clamping groove matched with the clamping blocks is arranged at the top of the fixing base, and an expansion block is arranged at the bottom of the clamping block.
6. The device for remotely and intelligently monitoring the children as claimed in claim 1, wherein a waterproof strip is disposed at a position close to the outer ring on the bottom surface of the waterproof end cover, and a waterproof groove matched with the waterproof strip is disposed at a position on the top surface of the fixing base.
7. The device for remotely and intelligently monitoring the children as claimed in claim 1, wherein two catching grooves are formed on the front end surface of the waterproof end cover near the bottom.
8. The remote intelligent monitoring device for children according to any one of claims 1 to 7, comprising a bracelet body, wherein the bracelet body comprises a fixing base, a mounting groove of an intelligent bracelet is arranged at a middle position of the top surface of the fixing base, a waterproof end cover is arranged at a position of the top surface of the fixing base, a left watchband is arranged at a position of the left side surface of the fixing base, a right watchband is arranged at a position of the right side surface of the fixing base, a connecting and fixing buckle is arranged at a position between the left watchband and the right watchband, a plurality of clamping grooves for matching with the connecting and fixing buckle are arranged at a position of the surface of the left watchband, and a plurality of first clamping grooves for matching with the connecting and fixing buckle are arranged at a position of the surface of the right watchband;
the connecting and fixing buckle comprises a fixing plate, fixing insertion rods are arranged at the positions, close to the left side and the right side, of the top surface and the bottom surface of the fixing plate, and extending ends are arranged at the positions, far away from the fixing plate, of the fixing insertion rods;
a visible groove is formed in the middle of the top surface of the waterproof end cover;
fixed stop blocks are arranged at the positions of the top surface of the fixed base, which are positioned at the left side and the right side of the waterproof end cover;
four clamping blocks are arranged at the bottom surface of the waterproof end cover, a fixing clamping groove matched with the clamping blocks is arranged at the top surface of the fixing base, and an expansion block is arranged at the bottom of each clamping block;
a waterproof strip is arranged at the position, close to the outer ring, of the bottom surface of the waterproof end cover, and a waterproof groove matched with the waterproof strip is arranged at the position of the top surface of the fixed base;
two buckling grooves are formed in the position, close to the bottom, of the front end face of the waterproof end cover;
the fixed base, the waterproof end cover, the left watchband and the right watchband are all made of waterproof rubber;
the waterproof rubber is prepared from 2.5 parts of DAI-EL G-702 fluororubber, 0.3 part of thermoplastic polyurethane elastomer rubber, 0.1 part of surfactant, 0.5 part of nano magnesium oxide, 0.2 part of cellulose-based waterproof additive and 1.5 parts of methyl isobutyl ketone by mass;
the surfactant is obtained by uniformly mixing 3M fluorocarbon surfactant FC-4430 and hexadecyl betaine according to the volume ratio of 3: 1;
the preparation method of the cellulose-based waterproof additive comprises the steps of soaking the lignin fiber in fluorosilane liquid for 60 minutes, and drying the lignin fiber in nitrogen flow at 90 ℃ to obtain the cellulose-based waterproof additive;
the fluorosilane liquid is prepared by mixing trichloro- (1,1,2,2,3,3,4, 4-octafluorobutyl) silane and toluene in a volume ratio of 2: 1;
the preparation method of the waterproof rubber comprises the following steps: adding DAI-EL G-702 fluororubber, nano magnesium oxide, a surfactant, a cellulose-based waterproof additive and methyl isobutyl ketone into a container, stirring for 1 hour at room temperature, adding thermoplastic polyurethane elastomer rubber, continuously stirring for 24 hours, drying for 1 hour at 90 ℃, heating to 120 ℃, and continuously drying for 1 hour to obtain the polyurethane elastomer.
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| CN101943886B (en) * | 2010-09-01 | 2012-09-19 | 鸿富锦精密工业（深圳）有限公司 | Electronic device and watch |
| CN206039156U (en) * | 2016-09-13 | 2017-03-22 | 广东小天才科技有限公司 | Waterproof construction of intelligence wrist -watch |
| CN208048185U (en) * | 2018-04-12 | 2018-11-06 | 郭森明 | A kind of smart motion bracelet |
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