School desks and chair sets are mostly made of wood or plastic, but now most of them are made of steel and wood. The material is safe enough for students, and durable for schools. The safety of the desk and chair set is a big problem for students and the school. If the school desk and chair set is not safe during use, it will have an impact, especially on the growth and development of primary and middle school students. Great influence, so many buyers will have questions, isn’t there a safety standard for school desk and chair sets?

1. The desk and chair size standard desktop width (left and right direction), from the original 550mm~600mm (single use) and 1000mm~ 1200mm (double use) were revised to 600mm and 1200mm respectively. The height of the backrest and the clearance under the desk have been added. The size of some parts is also slightly adjusted.

2. The lifting and adjusting mechanism should be equipped with a locking device or a limit device, which should be flexible, reliable and safe.

3.The gap between the relative moving mechanical device parts and the contact part of the human body should be ≤5mm or ≥25mm.

4. The flipping device should be equipped with a buffer or damping device, and all parts and components should be undamaged.

5. The radius of the rounded corners of the seat surface, chair back and armrest in contact with the human body should not be less than 2mm.

6. Some parts that may cause injury should not be accessible unless special disassembly tools are used. It should not be possible for desks and chairs to be disassembled at will, unless special disassembly tools are used.

7. Parts that use lubricating oil should be properly covered.

8. The metal fittings should have no unsealed pipe fittings, and the cap should not fall off easily.

9.The diameter of all uncovered holes should be ≤5mm or ≥25mm.

10. There should be no burrs, blade corners, sharp edges, penetrating nails and other sharp objects in the parts in contact with the human body and the parts where the articles are stored.

11. Empty area under the desks. Any form of desks and chairs for students must have enough space under the desks for lower limbs to ensure the forward and backward movement of the lower limbs of the sitting students.

12. The height of student desks and chairs is the height of the seat surface above the ground. The appropriate chair height should be slightly lower than the calf about 1 cm (wearing shoes). The calf is slightly higher in order to make the lower limbs focus on the entire foot, which facilitates the movement of the front legs back and forth.

13. The depth of student desks and chairs is the width of the front and back of the seat, which should be equivalent to three-quarters of the full length from the hip to the thigh. The front edge of the chair should not be angular, and the seat face is slightly inclined at an angle of 0 to 2 degrees.

14. The backrest of the student desks, chairs and chairs should be tilted backwards, and the angle between the backrest and the chair surface is 95 degrees to 100 degrees. The lumbar backrest should be suitable for spine bending and when sitting and reading, the back muscles can rest and reduce fatigue.

The above is the entire content of the school desk and chair set safety standards. These safety standards are designed to allow primary and middle school students to have suitable desks and chairs to use, which is more conducive to the physical and mental development and healthy growth of students, so be sure to follow These standards are used to make purchases. The school should also equip students with suitable desks and chairs models according to the height of the students.

There are many types of student desks and chairs. Among them, the most widely used ones are the students lifting desks and chairs. There are various lifting methods, and the height and hole distance can be customized according to the height range of the students. Students can adjust themselves according to the height of the students. It can provide students with a good learning environment because of its height and comfort. Now let the school office furniture manufacturer introduce to you the methods and advantages of lifting desks and chairs for students!

The main method of lifting and lowering the desk and chair set

1. Screw lifting method

The screw lifting method is also a screw fixed type. The punching slide has a lifting adjustment function. It is divided into 8 small holes of about 10mm and fixed by screws. However, this adjustment method is difficult for students to adjust the height alone, so it is necessary to adjust the height. Two students can cooperate to achieve the desired height.

2. Air pressure lifting method

The pneumatic lifting method is that there is an air cylinder in the lifting chair, and the piston rod in the cylinder moves up and down to control the lifting of the swivel chair to adjust the suitable height.

3. Mechanical lifting method

The mechanical lifting method is relatively simple. The design principle of the mechanical lifting method is that the chair legs are equipped with gears and hand crank shafts outside, and then the table and chair can reach the ideal height by shaking by hand. This adjustment method is very simple One kind.

4. Hydraulic chair lift method

The hydraulic jack of the key part of the hydraulic lifting method is driven by the manpower to drive the hydraulic pump, which is driven by the hydraulic system, and the cylinder or piston is used as the lifting part. Hydraulic jacks can be divided into integral type and separate type. The integral pump is connected with the hydraulic cylinder into a whole; the separate pump is separated from the hydraulic cylinder, and the middle is connected with a high-pressure hose.

5. Circlip lifting method

The circlip lifting method is also relatively simple and easy to operate. As long as the circlip button is pulled, the desks and chairs can be adjusted to a suitable height. This is very practical and common.

6. Knob lifting method

The lifting method of the knob is similar to that of the circlip lifting method, except that the outside handles are different, but they are especially suitable for students, simple and easy to operate.

The advantages of students lifting desks and chairs

1. Strong adaptability

The height adjustability of the desks and chairs for students to lift is a very outstanding advantage. The desks and chairs are suitable for various heights and will not cause various diseases of students, such as myopia, etc. due to the fixed desks.

2. Cost savings

Because the height of the students’ lifting desks and chairs can be adjusted, it can meet the needs of different students, so both the lower grades and the upper grades can use the same lifting desks and chairs, and there will be no waste. , For the school, it also reduces a lot of consumption.

3. Widely used

There are a wide range of applications for students to lift desks and chairs. They are not only suitable for students to use in schools, but can also be used at home, including various re-education institutions can also choose this kind of lifting desks and chairs.

The above is all the contents of the lifting methods and advantages of students lifting desks and chairs. In summary, we can see that the lifting methods of students lifting desks and chairs include screw lifting method, pneumatic lifting method, mechanical lifting method, hydraulic lifting chair method, and circlip lifting method , Knob lifting method, etc. The lifting methods of lifting desks and chairs are diverse and have the advantages of strong adaptability, cost saving, and wide application. They have been well received by universities and families.

Desks and chairs are essential furniture for students in schools and families to study. Therefore, there are many manufacturers of desks and chairs on the market, and the product quality is good or bad, and the prices are also uneven. This has led to a lot of substandard products on the market. Shoddy under the guise of low prices, so how should we choose? The following desk and chair manufacturers have compiled some methods for judging the qualifications of desks and chairs for everyone, I hope they can help you!

Methods of judging the qualifications of desks and chairs

1. Judging from the smell

Unqualified desks and chairs will definitely smell heavier than qualified products, because the materials used in the spraying layer of the desktop and the steel frame are different, and the unqualified desks and chairs emit excessive formaldehyde and cause great harm to the human body. , You can judge whether the desks and chairs are qualified based on the smell alone.

2. See if it shakes

When choosing, you can perform a shaking test on the desks and chairs. If the shaking is severe, it means that the steel used in the desks and chairs is thinner, the welding is not strong enough, and the stability is not enough, which can also indicate that the overall stability is not enough. superior. Insufficient stability of desks and chairs has a lot of influence on children, and may even cause many bad habits.

3. Flatness of seam

Whether it is pasting wood veneer, PVC or pasting pre-painted paper, pay attention to whether the leather is smoothly pasted, whether there are bulges, blisters, and loose seams. When checking, you should look at it, and you will not be able to see it if it is not flushed. Generally, the corners of veneer furniture are easy to tilt up. You can pick the corners with your hands when selecting.

4. Integrity of edge banding

Whether the sealing edges of the desks and chairs are intact and whether there are uneven edges. If there is such a situation, the desk will be broken after using it for a long time. You should check whether there is such a situation in time after you buy it back.

5. Judging from gloss

The entire steel frame of the desks and chairs needs to be painted. If the color is dim, the painting process of such desks and chairs will definitely not be closed. There are hidden dangers, and you should not choose the desks and chairs with dim colors.

6. Look at the manufacturer’s qualifications

Look at the manufacturer’s business license, qualifications, desk and chair certification, test reports, etc. These are all essential. If there is something missing, it can be judged as a substandard product without looking at the product.

7. Judging from the design

When choosing, you should sit up and feel it. Qualified desks and chairs can fit the natural curvature of the human body and maintain the correct sitting posture. Unqualified desks and chairs can repel the human body and make people uncomfortable to sit. It takes a long time to sit. Adaptation, slow concentration. This shows that the design of desks and chairs is unscientific, not ergonomic, and unable to provide students with a scientific and healthy learning environment.

(1) The table bucket is too big

Many schools choose desks and chairs with large desks for the storage of students’ books. However, without changing the height of the desks and chairs, they can only reduce the net space under the desks and chairs, which leads to insufficient legs for students. The placement of space directly leads to the problem of students’ sitting posture, which will lead to the development and deformation of the spine of the students in the long term, which will seriously affect the health of the students. Such desks and chairs are unqualified.

(2) Can’t adjust

As the height of students continues to grow, the original height of desks and chairs can no longer meet the height of students, so for students, desks and chairs that cannot be adjusted independently are unqualified and cannot meet the growth and development of students.

(3) Complete accessories

See whether the accessories of the desks and chairs are complete, such as designing schoolbag hooks on the side of the desk, so that students’ schoolbags can be put on the ground; desks and chairs need to be equipped with noise-proof foot covers to provide students with a quiet and good learning environment. If there is no matching accessories, it can be judged as a substandard product.

The above is a detailed explanation of the method of judging the qualifications of desks and chairs. The judgment method introduced above can also be used as a method of choosing desks and chairs. When choosing to buy, we can choose the method that suits our needs according to the above methods. Desks and chairs.

The use of student desks and chairs in schools is very common, because if the school does not have student desks and chairs, students cannot carry out normal learning. The desks used for learning are very important, so the school is choosing student classes. When choosing desks and chairs, you need to carefully choose. Of course, the price of student desks and chairs is very important when choosing. I believe that many buyers are more concerned about the price, so how much is a set of student desks and chairs?

The price of student desks and chairs

There are differences in the prices of student desks and chairs. There are many factors that affect the overall price of student desks and chairs, but generally the price of student desks and chairs is between 100 yuan and 500 yuan, and this price is also Market quotation is also a relatively common price range. In addition, the price will be higher, ranging from 500 yuan to several thousand yuan. These are generally functional desks and chairs or customized desks and chairs.

Factors affecting the prices of student desks and chairs

1. The influence of desk and chair material

There are many materials for student desks and chairs. The materials are generally wood, steel, and plastic. In addition, there are composite materials, plastic steel materials, steel-wood materials, and so on. These differences in materials will also cause price differences.

2. The influence of desk and chair design structure

In addition, the design structure of student desks and chairs is also very influential. The design is simple and complex or other humanized small designs. In addition, there is also the structure of desks and chairs. For example: the same material, the square stool is better than the backrest. Chairs should be cheaper and less material. These will affect the price.

3. Influence of desk and chair manufacturers

In addition, different manufacturers of student desks and chairs will cause price gaps. Different manufacturers, materials used and production technology, as well as other component materials used, and some costs, etc. All will cause a price gap.

4. The impact of the demand for desks and chairs

In addition, the demand for student desks and chairs will also cause a big gap in the price, because the price of different demand is different. Simply put, it is the same as wholesale. The more you buy, the cheaper the price. Simply put, it is the wholesale price, but if the quantity purchased is small, the price will naturally be higher, so the amount of purchase will also cause a price gap.

The above is the whole content of how much a set of student desks and chairs are. Through the above content, I believe that everyone knows the price quotation, and also understands the factors that affect the price, so when the school purchases, it still needs to choose according to its own needs. purchase. So as to ensure the purchase of high-quality, low-cost and cost-effective desks and chairs.

Desks and chairs are the main furniture in the school class environment, and its purpose is to create a better reading environment for students and protect their health. Once again, we have shared with you about how to choose the material of student desks and chairs, so what aspects should we consider when buying student desks and chairs ?

1. Students of primary and middle school age are often active because of their young age. As a young child, they neglect the risk of physical harm to the corners of the table. As a purchaser, we should buy tables and chairs with rounded and blunt corners. , Because it can help us to a large extent reduce the injuries caused by the corners of the students.

2. Try to use environmentally friendly and durable materials for desks and chairs, such as plywood instead of traditional wooden boards, which have outstanding advantages in waterproofing and anti-deformation capabilities.

3. The length and width of the panel should be determined based on the detailed data of the students. It should not show the situation of primary school students using large desks, wasting resources, and the use of small desks by college students would bring inconvenience to students in the learning process.

4. When buying student desks and chairs, you must choose the size scientifically, and when choosing student desks and bookcases, it must be ergonomic, but the size of desks and chairs must be combined with the height, age and body type of the child. Good for their healthy growth.

5. Children who are studying, there are many kinds of books, and they need more places to put them. In order to avoid buying another bookcase, it is recommended to choose a desk with a bookcase, so as not to put too many books on the table and affect the learning time space.

6. The corners of tables and chairs must be treated with arcs, and the depth of the arcs and the positions of the two sides will directly affect the comfort of the child during learning. Sit up and feel whether the arc can bring comfort when you turn around. Is it hindered.

7. The study table and chair should be made of solid wood as much as possible. This is to ensure their bearing capacity and avoid the danger of collapse due to insufficient bearing capacity. When choosing, you can tap the desktop with your hand to listen to the sound. If the sound feels thick, it means it is made of solid plates. Also shake the desk with your hands to see if the desk shakes or makes noise.

8. Most children have the habit of scribbling. This is the nature of children. When choosing a children’s desk, try to choose a desk that is easy to erase. Buying student desks and chairs depends on environmental protection, and student desks and bookcases are made of wood, wood-based panels, plastics, etc. These materials have their own characteristics, so you must choose strong and practical when choosing. However, the specific requirements are environmental protection and no odor, and the surface coating should have the characteristics of non-fading and not easy to scratch. Then you must choose a desk and chair with plastic veneer or other harmless coatings, but because children often want Contact here, then this is very important.

9. Student desks and chairs are safe for children. The lines of the desks and bookcases should be smooth and smooth, with round or curved edges, smooth switches and delicate surface treatments. Also, desks and chairs with sharp corners and hard and rough surfaces should be kept away from children. However, you can try to shake a few vigorously when purchasing. If you clearly feel the structure of the table and chair is loose and swaying, you can’t ask for it.

10. Student desks and chairs can choose slightly more generous color lines, which not only looks beautiful, but also helps reduce student eye fatigue.

In general, student desks and chairs are teaching tools that are in high demand in schools. The quality of desks and chairs directly affects the health of students, and the quality of desks and chairs needs to be paid attention to.