Intelligent walking stick

Abstract

The present application relates to the technical field of daily necessities, in particular to the field of IPC A45B7, further to a kind of intelligent crutch.It includes handle, telescopic crutch pole and four corner footrest.The intelligent crutch designed in the application can be telescopic, convenient for the elderly to carry and use after sitting down;Lighting function, convenient for the elderly to use at night;SOS function, convenient for the elderly to seek help;Positioning function;Convenient to know the location information of the elderly at any time.Use high anti-skid, high wear-resistant rubber as the material of four corner footrest to make it more convenient for the elderly to use and improve the service life of intelligent crutch.

Description

Technical Field

[0001] This invention relates to the field of everyday consumer goods technology, particularly to the field of IPC A45B7, and further to a smart cane. Background Technology

[0002] With improved living standards and healthcare, people are living in peace and contentment, and life expectancy is increasing, leading to a gradual rise in the number of elderly people in my country. Some elderly individuals experience vision loss and blurred vision, making a cane helpful in avoiding obstacles and dangers when out and about, thus ensuring safety. However, with technological advancements, traditional canes no longer meet the needs of modern seniors. For example, the cane's handle is not retractable, making it inconvenient for seniors to transition from sitting to standing; the base is unstable, leading to slips and falls; it lacks lighting, making nighttime travel difficult; it lacks location tracking, preventing real-time monitoring; and in case of emergencies, it cannot signal for help, potentially delaying rescue. Therefore, designing a smart cane to make life more convenient and comfortable for the elderly is essential. However, the design of a smart cane inevitably increases costs, making it even more crucial to design a functional and durable smart cane.

[0003] Chinese patent CN 107752254 A discloses a self-righting walking stick, comprising a handle, a first walking stick, and a second walking stick. A counterweight at the bottom of the walking stick allows it to stand upright like a self-righting toy. The threaded connection between the first and second walking sticks allows for easy adjustment of the stick's length. A light, distress signal, compass, and thermometer enable the walking stick to play a significant role in certain situations, greatly enhancing its practicality. However, the hemispherical counterweight in this design does not provide ideal support for the elderly, is not stable, and causes concern about falls, leading to low psychological acceptance among the elderly. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides an intelligent cane, comprising a handle, a retractable cane bar, and four corner feet.

[0005] In some preferred embodiments, the handle includes a light, a light switch, a positioning switch, and a call switch.

[0006] Preferably, the call switch is turned on and a voice message is emitted saying, "I am an elderly person, thank you for helping me."

[0007] In some preferred embodiments, the retractable cane bar contains a GPS positioning chip.

[0008] In some preferred embodiments, the four-cornered foot base is made of high-slip-resistance and high-wear-resistance rubber.

[0009] In some preferred embodiments, the high-slip-resistance and high-wear-resistance rubber is made of 80-100 parts of butadiene rubber, 20-40 parts of natural rubber, 15-30 parts of thermoplastic elastomer, 20-40 parts of filler, 3-4 parts of vulcanizing agent, 2-5 parts of silane coupling agent, 0.5-1 part of accelerator, and 0.5-1 part of antioxidant.

[0010] In some preferred embodiments, the natural rubber is epoxidized natural rubber.

[0011] Preferably, the epoxidized natural rubber has an epoxidation degree of 50%.

[0012] In some preferred embodiments, the mass ratio of the butadiene rubber and the epoxidized natural rubber is (1-4):1.

[0013] In some preferred embodiments, the thermoplastic elastomer is selected from one or more of ethylene-vinyl acetate copolymer, polyolefin elastomer, styrene-butadiene-styrene triblock copolymer, and styrene-butadiene block copolymer.

[0014] Preferably, the thermoplastic elastomer is a combination of polyolefin elastomer and styrene-butadiene-styrene triblock copolymer.

[0015] Preferably, the mass ratio of the polyolefin elastomer and the styrene-butadiene-styrene triblock copolymer is (1-3):(1-3).

[0016] Preferably, the polyolefin elastomer has a melt flow rate of 5-20 g / 10 min (190°C).

[0017] Preferably, the styrene-butadiene-styrene triblock copolymer has a styrene content of 20-40 wt%.

[0018] Preferably, the styrene-butadiene-styrene triblock copolymer has a star-shaped polymer structure.

[0019] The system of the present application can improve the wear resistance of the rubber by selecting cis-polybutadiene rubber and epoxidized natural rubber as the main raw materials of the rubber system, and controlling the mass ratio of cis-polybutadiene rubber and epoxidized natural rubber to be (1-3):1. The unsaturated double bonds in the molecular chain of cis-polybutadiene rubber are easy to react with other substances, and the molecular chain has high flexibility. The molecular polarity of epoxidized natural rubber is large, and the intermolecular force is strong, which has good compatibility in the system. The cis-polybutadiene rubber and the epoxidized natural rubber jointly act with the fillers in the system, so that the network structure formed after cross-linking is strong, and the wear resistance is good. However, the applicant found that the hardness of the prepared rubber is large. Therefore, in the system of the present application, the flexibility of the rubber can be improved by adding a thermoplastic elastomer. Further, the applicant found that when the thermoplastic elastomer is a combination of polyolefin elastomer and styrene-butadiene-styrene triblock copolymer, the melt flow rate of the polyolefin elastomer is 5-20 g / 10 min (190°C), the styrene content of the styrene-butadiene-styrene triblock copolymer is 20-40 wt%, and the polymer structure of the styrene-butadiene-styrene triblock copolymer is star-shaped, the rubber flexibility is improved while the rubber slip resistance is also improved. The applicant speculates that the polyolefin elastomer and the styrene-butadiene-styrene triblock copolymer intertwine with the molecular chains of cis-polybutadiene rubber and epoxidized natural rubber, increase the viscosity of the system, and improve the dispersibility of the fillers. When the polyolefin elastomer with a melt flow rate of 5-20 g / 10 min (190°C) makes the fillers in the system have the best dispersibility, the star-shaped styrene-butadiene-styrene triblock copolymer may increase the surface roughness of the prepared rubber and improve the slip resistance.

[0020] In some preferred embodiments, the filler is selected from one or more combinations of carbon black, aluminum oxide, barium sulfate, magnesium carbonate, calcium oxide, magnesium oxide, calcium carbonate, carbon nanotubes, and zinc oxide.

[0021] Preferably, the filler is selected from a combination of calcium carbonate and zinc oxide.

[0022] Preferably, the mass ratio of the calcium carbonate to the zinc oxide is (4-7):(1-3).

[0023] Preferably, the calcium carbonate is a nano-sized active calcium carbonate.

[0024] Preferably, the nano-sized active calcium carbonate has a square shape.

[0025] Preferably, the nano-sized active calcium carbonate has a specific surface area of 10-40 m 2 / g.

[0026] Preferably, the zinc oxide has a particle size of 20-50 nm.

[0027] In some preferred embodiments, the vulcanizing agent is one or more combinations of sulfur, benzoyl peroxide, ethyl carbamate, and PDM vulcanizing agent.

[0028] Preferably, the vulcanizing agent is sulfur.

[0029] In some preferred embodiments, the silane coupling agent is selected from any one of bis[(triethoxysilyl)-propyl]tetrasulfide (Si69), bis[(triethoxysilyl)-propyl]disulfide (Si75), and γ-mercaptopropyltrimethoxysilane (A-189).

[0030] Preferably, the silane coupling agent is bis[(triethoxysilyl)-propyl]tetrasulfide (Si69).

[0031] In some preferred embodiments, the accelerator is one or more combinations of ethylene thiourea, zinc dimethyl dithiocarbamate, hexamethylenetetramine, phenylene dimaleamide, and trimethylolpropane trimethacrylate amine.

[0032] Preferably, the accelerator is zinc dimethyl dithiocarbamate.

[0033] In some preferred embodiments, the antioxidant is selected from one or more combinations of 2,6-di-tert-butyl-4-methylphenol, antioxidant 4010NA, antioxidant D, antioxidant DNP, and antioxidant MB.

[0034] Preferably, the antioxidant is antioxidant D.

[0035] In some preferred embodiments, the method for preparing the high anti-slip and high abrasion-resistant rubber includes the following steps:

[0036] (1) By weight, butadiene rubber, natural rubber, thermoplastic elastomer, filler, silane coupling agent and antioxidant are mixed at 110-150℃ for 8-10 minutes.

[0037] (2) The mixture obtained in step (1) is mixed with vulcanizing agent and accelerator at 40-60℃ for 3-5 minutes to obtain the final product.

[0038] Beneficial effects:

[0039] 1. The smart cane designed in this invention is retractable, making it convenient for the elderly to carry and use after sitting down; it has a lighting function, making it convenient for the elderly to use at night; it has an emergency call function, making it convenient for the elderly to seek help; and it has a positioning function, making it convenient to know the location information of the elderly at any time.

[0040] 2. This invention selects butadiene rubber and epoxy natural rubber as the main raw materials of the rubber system. The unsaturated double bonds in the butadiene rubber molecular chain readily react with other substances, and its molecular chain exhibits high flexibility. Epoxy natural rubber has high molecular polarity and strong intermolecular forces, resulting in good compatibility within the system. The combined action of butadiene rubber and epoxy natural rubber with fillers in the system leads to a strong network structure formed after cross-linking, resulting in excellent wear resistance. The addition of polyolefin elastomers and styrene-butadiene-styrene triblock copolymers improves both the rubber's flexibility and its anti-slip properties. Using highly anti-slip and highly wear-resistant rubber as the material for the four corner feet further facilitates use by the elderly and extends the lifespan of the smart cane. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the structure of a smart cane according to the present invention.

[0042] In the diagram: 1-Handle grip, 2-Retractable cane bar, 3-Four-corner base, 4-Call switch, 5-Positioning switch, 6-Lighting switch, 7-Lighting lamp, 8-GPS positioning chip. Detailed Implementation

[0043] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the scope of the invention.

[0044] Example 1

[0045] like Figure 1 As shown, this example provides a smart cane, including a handle 1, a retractable cane bar 2, and four corner feet 3.

[0046] The handle includes a light 7, a lighting switch 6, a positioning switch 5, and a call switch 4.

[0047] Turn on the call switch and say in voice, "I am an elderly person, thank you for helping me."

[0048] The retractable cane is equipped with a GPS positioning chip 8.

[0049] The four corner feet are made of highly non-slip and highly wear-resistant rubber.

[0050] The high anti-slip and high wear-resistant rubber, by weight, comprises the following raw materials: 90 parts butadiene rubber, 30 parts natural rubber, 20 parts thermoplastic elastomer, 30 parts filler, 3.5 parts vulcanizing agent, 3 parts silane coupling agent, 0.6 parts accelerator, and 0.6 parts antioxidant.

[0051] The natural rubber mentioned is epoxy natural rubber.

[0052] The epoxy natural rubber has an epoxidation degree of 50% and was purchased from Shandong Dengnuo New Material Technology Co., Ltd., model: ENR50.

[0053] The thermoplastic elastomer is a combination of a polyolefin elastomer and a styrene-butadiene-styrene triblock copolymer.

[0054] The mass ratio of the polyolefin elastomer to the styrene-butadiene-styrene triblock copolymer is 1:1.

[0055] The melt flow rate of the polyolefin elastomer is 18 g / 10 min (190 °C), and it is Dow POE.8411.

[0056] The styrene-butadiene-styrene triblock copolymer has a styrene content of 30 wt%.

[0057] The styrene-butadiene-styrene triblock copolymer has a star-shaped polymer structure and was purchased from Dongguan Yucheng Plastics Co., Ltd., model number: 2336.

[0058] The filler is selected from a combination of calcium carbonate and zinc oxide.

[0059] The mass ratio of calcium carbonate to zinc oxide is 5:2.

[0060] The calcium carbonate is nano-sized active calcium carbonate.

[0061] The nano-sized activated calcium carbonate is square in shape.

[0062] The specific surface area of ​​the nano-sized active calcium carbonate is 23±4 m². 2 / g.

[0063] The zinc oxide has a particle size of 30±5nm and was purchased from Beijing Deco Island Gold Technology Co., Ltd., model: DK-ZnO-X30.

[0064] The vulcanizing agent is sulfur.

[0065] The silane coupling agent is bis[(triethoxysilyl)-propyl]tetrasulfide (Si69).

[0066] The accelerator is zinc dimethyl dithiocarbamate.

[0067] The antioxidant is antioxidant D.

[0068] The preparation method of the high anti-slip and high wear-resistant rubber includes the following steps:

[0069] (1) By weight, butadiene rubber, natural rubber, thermoplastic elastomer, filler, silane coupling agent and antioxidant are mixed at 140°C for 10 min.

[0070] (2) The mixture obtained in step (1) is mixed with vulcanizing agent and accelerator at 50°C for 4 minutes to obtain the final product.

[0071] Example 2

[0072] Example 2 provides a smart cane, the specific implementation of which is the same as that of Example 1, except that the high anti-slip and high wear-resistant rubber, by weight, comprises: 85 parts butadiene rubber, 35 parts natural rubber, 25 parts thermoplastic elastomer, 30 parts filler, 3.5 parts vulcanizing agent, 3 parts silane coupling agent, 0.6 parts accelerator, and 0.6 parts antioxidant.

[0073] Example 3

[0074] Example 3 provides a smart cane, the specific implementation of which is the same as that of Example 1, except that the mass fraction of the butadiene rubber is 100 parts and the mass fraction of the natural rubber is 20 parts.

[0075] Example 4

[0076] Example 4 provides a smart cane, the specific implementation of which is the same as that of Example 1, except that the polyolefin elastomer is replaced with ethylene-vinyl acetate copolymer.

[0077] Example 5

[0078] Example 5 provides a smart cane, the specific implementation of which is the same as that of Example 1, except that the polymer structure of the styrene-butadiene-styrene triblock copolymer is linear, and it was purchased from Dongguan Yucheng Plastics Co., Ltd., model: 2518P.

[0079] Performance testing: The high anti-slip and high abrasion-resistant rubbers prepared in Examples 1-5 were tested as shown in Table 1.

[0080] Table 1:

[0081]

Claims

1. A smart cane, characterized in that, Includes a grip handle, a retractable cane handle, and four corner feet; The four corner feet are made of highly non-slip and highly wear-resistant rubber. The handle includes a light, a light switch, a positioning switch, and a call switch; The retractable cane is equipped with a GPS positioning chip. The high anti-slip and high wear-resistant rubber, by weight, comprises the following raw materials: 80-100 parts butadiene rubber, 20-40 parts natural rubber, 15-30 parts thermoplastic elastomer, 20-40 parts filler, 3-4 parts vulcanizing agent, 2-5 parts silane coupling agent, 0.5-1 part accelerator, and 0.5-1 part antioxidant. The natural rubber is epoxy natural rubber, and the degree of epoxidation of the epoxy natural rubber is 50%. The thermoplastic elastomer is a combination of a polyolefin elastomer and a styrene-butadiene-styrene triblock copolymer, with a mass ratio of (1~3):(1~3) for the polyolefin elastomer, a melt flow rate of 5~20 g / 10 min for the polyolefin elastomer, a styrene content of 20~40 wt% for the styrene-butadiene-styrene triblock copolymer, and a star-shaped polymer structure for the styrene-butadiene-styrene triblock copolymer. The filler is selected from a combination of calcium carbonate and zinc oxide, with a mass ratio of calcium carbonate to zinc oxide of (4~7):(1~3). The calcium carbonate is nano-sized active calcium carbonate, square in shape, and has a specific surface area of ​​10~40 m². 2 / g; the particle size of zinc oxide is 20~50nm; The vulcanizing agent is sulfur; The silane coupling agent is bis[(triethoxysilyl)-propyl]tetrasulfide; The accelerator is zinc dimethyldithiocarbamate; The antioxidant is antioxidant D.

2. The smart cane according to claim 1, characterized in that, The method for preparing the high anti-slip and high wear-resistant rubber includes the following steps: (1) By weight, butadiene rubber, natural rubber, thermoplastic elastomer, filler, silane coupling agent, and antioxidant are mixed at 110~150℃ for 8~10min; (2) The mixture obtained in step (1) is mixed with vulcanizing agent and accelerator at 40~60℃ for 3~5 minutes to obtain the final product.

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