1. Who invented the slide

The slides are in various playgrounds in the city.You can see kindergartens and wait. When everyone watched children playing with slides, do you want to invent out how these slides are invented?

How does the rural doll want to play the slide? I have a deep understanding of this. I do nt have the slide to slide from top to top. Whether it is children in the city or children in rural mountainous areas, children in rural areas are children.Those who can play are very happy. In fact, the kindergarten slide goes back very early, and the slide is not a way to verify as a toy.

2. The development history of slide

The first generation of slide

The first generation of slide was the product of the 1970s. The top was from the FRP. After the skeleton was welded with cheap Square tubes or round tubes, brushed the paint.connect.This kind of sloped glass reinforcement is a single layer, Smooth outside, rough inside, and the child is playing inside. The exposed part of the Skin will itch.And it is quite unknown, and the safety is not high, so this product has been eliminated.

Second -generation slide

The second -generation slide is the product of this life. The top is double -layer glass reinforced reinforced. The skeleton is a steel pipe. It sprays paint.This kind of sloped glass fiber reinforcement is a double -layer hollow. It is Smooth outside and can draw many beautiful patterns.a little.The overall structure is relatively firm and high, so some of these products are still in use.The disadvantage is: FRP is easy to aging, fade, and cracks.The steel pipe time is rust for a long time.

Third -generation slide

The third -generation slide is a product after 2008. The top is engineering plastics. The skeleton is galvanized steel pipe. It is sprayed with paint.This sliding engineering plastic is dual -layer of hollow and toughness, and the scroll plastic process is formed at one time.The outside is Smooth, and the beautiful patterns are all one -time. The steel parts: The Steel Structure of the pillars and the steel plate type is used. The column is a steel pipe with a diameter of 114cn. The aisle steel plate has 120cm wide and more loose.The overall structure is quite dura, and the safety is extremely high, so this product is often favored by some mid -to -high -end users.It is best to choose this kind of kindergarten, high safety, durability, and high degree to ensure the safety of children.

1. How to clean the helmet

1. The first step of cleaning the riding helmet is to prepare some necessities: mild cleaner, soft brush or sponge, and a clean cloth.Please note that the cleaner is best to be mild and non -irritating to avoid using products containing strong chemical ingredients.

2. When cleaning, you can first put the housing of the helmet into the water and soak it, then apply an appropriate amount of detergent on the brush, and gently wash the helmet's housing.Pay special attention to the holes on the helmet, because these places are easy to accumulate dust.After the brushing is finished, rinse the foam with water and wipe it clean with a dry cloth.

3. As for the lining and buckle part of the helmet, their cleaning is equally important.Deduades are directly contacted with our face every day, which is easy to contaminate sweat and bacteria.Therefore, when cleaning, use a brush with a cleaner to carefully brush the sides of the buckle band to ensure that it is completely clean.The inner lining can be removed directly. Wash and clean it with hand. Be careful not to use too much energy to avoid damaging the material.

4. After cleaning, put the helmet in a place where it is ventilated and avoid direct sunlight.Remember that before drying, make sure that the water inside the helmet is completely drained to prevent mold.At the same time, pay attention to avoid heavy object compression or friction when storing the helmet to maintain its original shape and protection performance.

2. How to maintain a Bicycle helmet

1. Avoid high temperature sunlight:Don't take a long timeThe Bicycle helmet is exposed to high temperature or sunlight to prevent damage to the shell and lining.

2. Properly stored:When not in use, place the helmet in a dry, ventilated and cool place, and use a helmet bag or box for protection to avoid direct sunlight and dust erosion.

3. Stay away from chemicals:Avoid hazardous chemicals such as solvents, gasoline or acid cleaners.

4, light and lightly play:Be careful to handle the helmet to avoid falling or impact hard objects to ensure its structural integrity and protection performance.

5. clean after cycling:It is recommended to simply clean the helmet after each cycling to maintain its freshness and hygiene.This can not only extend the service life of the helmet, but also ensure that the helmet can fully play its protective role at the next cycling.

1. What types of hooks

The adsorption method can be divided into:No trace hook, suction cup hook, ordering hook, sticky glue hook, etc.

1. No trace hook: A kind of environmentally friendly hook that does not produce traces in the veneer and does not damage the veneer.

2, suction cup linked: use the suction cup to tightly adsorb the hook on the wall.

3. Ordering hook: With nails, add nails into the hook of the wall.

4. Adhesive hook: Traditional hooks, adsorb the wall with sticky glue.

According to the material, it can be divided into:Wood hooks, plastic hooks, iron hooks, etc.

1. Wooden hook: The linked material is mainly wood.

2. Plastic hook: The hook material is mainly plastic.

3. iron hook: The linked material is mainly metal.

two,How to choose a hook

1. Select the material

The linked material directly affects its support.The decorative hooks generally have four commonly used materials for wood, plastic, iron and resin. The titer linked support is the highest, but it is easy to rust; several other materials are relatively low, each with its own characteristics, you can have your own characteristics.According to the actual use of the material, the material is selected.

2. Choose adhesive method

Decorative hooks can be divided into non -trace hooks, suction cup hooks, order -linked hooks, adhesive hooks, etc. The hook of no trace and suction cups will not leave traces on the adhesive surface, but it is not stable enough;The sticky glue hook is relatively stable, but it will leave traces on the adhesive surface.Buyers can choose the right link according to actual needs.

3. Check before buying

When buying, check the hook. First, check whether the linked is complete, no cracks, and damage; the second is to test whether the hook is firm, like suction cups and no trace hooks. You can hang up and try the effect first.

1. What is the Camping atmosphere light?

There are many types of Camping lights. There are different Lights for different uses to choose from. Camping atmosphere Lights. As the name suggests, the lamp that provides Camping atmosphere. Its main function is not lighting, but to create a wonderful atmosphere. Generally, there are two main types:

1. Decorative light

The Tent built by professionals is very beautiful at night, because they will entangle a decorative light around the Tent and the Tent rope. After the night is on, the entire Tent can be set off.You can set off a Tent rope in the night, so as not to trip outside.

2. Warm light atmosphere light

This Camping atmosphere light is mainly used to create a Camping atmosphere. The most sensible lamp in Camping is kerosene lamps, which is very poetic and romantic. Therefore, many manufacturers now use LED lights to simulate the LED lights when designing Camping atmosphere Lights.The warm light of kerosene lamps creates a romantic atmosphere.

2. How to hang the Camping atmosphere light

There are many types of Camping lights. Most of the current Camping lights coexist with practicality and value. In addition to using it during Camping, they can also be used as an atmosphere light, placed on the egg roll table, or Hanging next to the sky. It can be said that it can be said that it can be said thatIt is a must -have atmosphere of Camping at night.So how to hang Camping lights?

Generally speaking, there are two types of Camping atmosphere Lights. Decorative strips are wrapped around the Tent rope; the Camping atmosphere Lights are hung on the Tent.Atmospheric light, find a Tent pole or sky curtain rod when Hanging, and hang the hook of Camping atmosphere Lights to it.

3. Can the Camping atmosphere light be hung in a Tent?

The Camping atmosphere and Tent Lights are Camping lights, but their effects are different. The lamps Hanging in the Tent are generally mini, with high value and high brightness, mainly used for lighting;The main function of the Camping atmosphere is to create an atmosphere of the open camp. Generally, the Camping atmosphere light is not hung into the Tent.

Of course, if you have not or forgot to bring a Tent lamp, it is also possible to temporarily use the Camping atmosphere to make a Tent light.

[Material of the lampshade] How to clean the lampshade what the material is good for different materials?

What is the material of the lampshade?

The lampshade, as the name suggests, is a kind of cover set on the bulb or outside the lamp flame. It has the effect of preventing wind and rain and concentration. It looks like a small lampshade.Formed, let Xiaobian take everyone to enjoy some good -looking lampshade pictures together, and deeply understand the manufacturing materials of the lampshade.

First of all, Xiaobian will introduce the first type of lampshade: milk white lampshade, milk white lampshade is divided into transparent PMMA color powder, transparent PC bonding, transparent PC matte powder, glass fluorescent powder, transparent PC light diffusers, transparent PC,The following is the detailed introduction of them:

1. Transparent PMMA color powder: The lampshade made of this material has a low cost of the material and a little transparent. It can be seen by the light source, but its light transmission rate is low, and the disadvantages of uneven light diffusion.

2. Transparent PC edges: The lampshade made of this material has a high mechanical strength and a good light transmission rate, but it will cause lithography and the effect of light diffusion.soft.

3. Transparent PC frosted powder: The lampshade made of transparent PC frosted powder can cover the lamp beads, so the light transmission rate will be greatly enhanced, but the fog is low, the light loss is very powerful, it will reach 40%, the diffusion of light will spread, and the diffusion of light will spread.The effect is average.

4. glass fluorescent powder: It has the characteristics of low cost and good conservation effect, but it is easy to break and it is not convenient to transport.

5. Transparent PC light diffusion agent: The light diffusion agent itself has the effect of softering the light. The use of the lampshade made by it will make the light of the light softer and the appearance is very beautiful, but its weather resistance will be resistant to, but its weather resistance will be resistant to, but its weather resistance will resist, but its weather resistance will resist, but its weather resistance will resist, but its weather resistance will resist, but its weather resistance will resist, but its weather resistance will resist, but its weather resistance will resist, but its weather resistance will resist, but its weather resistance will resist, but its weather resistance will resist, but its weather resistance will resist, but its weather resistance will be resistantGenerally, the degree of light loss is 30%.

The second type of lampshade: transparent lampshade. This lampshade mainly uses two materials: glass, PC and PMMA.

1. glass: The lampshade made of glass is very light transmitting. Basically there is no light loss. If the tile of the lamp is high, the light of the glass lampshade will be dazzling and easy to break.

2. PC and PMMA: The light transmission rate of the lampshade of this material is very high, and the light loss rate is small, but the diffusion light will be dazzling.

This kind of lampshade, the appearance of the appearance is very European -style furniture manufacturing style. The use of advanced steel to make the framework of the lampshade, which is not easy to deform, and then use transparent PC and scrub powder to make lampshades.In the form of petals, coupled with hand -drawn patterns, a strong sense of art.

How to clean different materials lampshade

Fold lampshade

Scrub with a cotton swab dipped in water.

crystal beaded lampshade

If the lampshade is made of crystal beads and metals, it can be directly cleaned with neutral detergent.If the crystal beading is put on, it is best not to wet the wire, and wipe it with a soft cloth dipped in a neutral detergent.

Fabric lampshade

You can use the vacuum cleaner to take away the surface dust, and then put a little furniture detergent or detergent on the rag.If the inside of the lampshade is paper material, it is best not to use liquid washing agents such as detergent, detergent, detergent to avoid erosion.

fruits glass lampshade

It can be wiped with soft cloth, and you can dip a little toothpaste to make cleaning more thoroughly. Toothpicks can be treated with uneven places.

Resin lantern

You can use a dedicated tweezer or chemical fiber to clean, and then spray the anti -static spray immediately to prevent static electricity.