Choosing the wrong one can be fatal! Don't ignore the details of these children's furniture
In the second child era, more people smelled the "aldehyde" discoloration. As everyone knows, in addition to household pollution such as formaldehyde, there are also many deadly slots in children's furniture. Bao Dabao mothers must watch it carefully! Confined airtight space Children love to play hide and seek, the cabinet at home is probably the best hidden point, and it is easy to feel uncomfortable in hiding for a long time, which will cause suffocation. Therefore, when purchasing cabinet-type closed products, you should pay attention to whether there are holes for ventilation on the side or back of the cabinet, so as to prevent children from suffocating after drilling. National standards stipulate that cabinet-type closed furniture used by children should have a certain ventilation function. Specifically, in a hermetic airtight space, when the closed continuous space is greater than 0.03 cubic meters, a single unobstructed ventilation opening with a single opening area of ​​650 mm 2 and a distance of at least 150 mm should be provided inside. , or a ventilation opening with an equivalent area. Table and chair height adjustment For children who are growing faster and at the stage of physical development, it is an important measure to determine whether the height and size of the tables and chairs are adapted to the changes in the posture of children at different stages. Recently, the height-adjustable tables and chairs have been favored by parents, which is more convenient and flexible. Depending on the child's height and age, choosing an ergonomic table and chair makes it easier for the child to maintain the best posture and distance in the correct sitting position. The size of the furniture matches the height of the human body and plays a key role in the growth and development of the child, especially the spine and vision. Glass material is not placed The glass parts of children's furniture are also one of the main problems causing children's injuries, and their sharp corners are easy to cut children. Parents should try to avoid children's furniture with glass parts when choosing children's furniture, or choose a glass design with a certain height. The General Technical Conditions for Children's Furniture requires that children's furniture should not be used with glass parts in areas within 1600 mm above the ground; if dangerous protrusions are present, they should be protected in a suitable manner. For example, a protective cap or cover is added to effectively increase the area that may be in contact with the skin. Hole size should be appropriate Many children's homes have the design of holes, which play a decorative role. The childlikeness is simple, but the hole is a safety hazard. If the hole is not the right size, the child can easily reach out with his hand and head. In order to avoid accidents, parents should pay attention to the size of the hole shape is reasonable. In the national standard "General Technical Conditions for Children's Furniture", it has already been clearly defined. In children's furniture products, the gap between accessible parts should be less than 5 mm or greater than or equal to 12 mm. Holes smaller than the corresponding size will not allow the child's hand to reach in, thus avoiding accidents; and larger than the corresponding size of the hole, the child's limbs can be stretched freely and will not get stuck because of the hole. Galavnized ground anchors are simple piles used for fixing pull lines or temporary fixation during construction. They are composed of one or more spiral bearing plates attached to the central axis. When in use, the ground anchors are rotated into the ground by rotating the ground anchors. In the following, the tensile force between the ground anchor spiral blade and the soil layer is used to achieve a fixed effect. Galvanized Ground Anchor,Screw Foundation Anchors,Galvanised Ground Anchor,Galvanized Auger Ground Anchors Shijiazhuang Qiancen Industry Co.,ltd , https://www.yuyilang.com
Spiral ground anchors are widely used in the construction of large poles and towers because of their large torque, short installation period, and stability of different soils.
Screw ground anchor application
Install transmission towers in the field
In long-distance power transmission lines, spiral ground anchors can be used to fix the bottom of high-voltage power transmission towers in environments with difficult transportation, high water levels, swamps, soft foundations, etc., and can cope with harsh outdoor environments and soils such as sand and gravel. Tower.
Installation of communication towers and power towers
Spiral ground anchors are suitable for the stabilization of the bottom of large communication towers and power towers due to their multi-angle structural torque and tensile force, with a tensile force of 80 kilolbs. The tower foot/iron column is fixed on a steel support composed of multiple spiral ground anchors or on a platform where multiple spiral ground anchors are combined together and poured into concrete, and the overall tower body is stable.
Spiral Ground Anchor VS Concrete Pouring Spiral Ground Anchor
-Features-
(1) Convenient installation, small storage area, and reduced transportation cost
(2) Pull or fix the iron tower and iron column
(3) Support iron towers and iron pillars can be tilted forward or at a small angle
(4) Tension and grip