Product Name: KX2133 Pioneer Wooden Hydraulic Excavator Model
Item No. : KX2133 Pioneer Wooden Hydraulic Excavator Model
Dimensions: Approximately 340mm in length * 14mm in width * 330mm in height
Weight: Approximately 220g
Material: Wood
Color: Mixed color
Whether to use a battery: No
Packing: 200 pcs
Box specification: 600*450*550mm

Preface

Today, with an increasing emphasis on children's education, scientific enlightenment education has gradually become an important topic pursued and explored in the field of education. More and more teachers and parents are beginning to pay attention to cultivating children's scientific literacy from an early age, enabling children to develop good personality and behavioral habits from the very beginning. Parent-child interactive handicrafts can enhance the quality of parent-child companionship and improve the parent-child relationship. The time we spend with our children, there are no mobile phones, ipads or TVS, only joy, interaction and communication. It can cultivate children's ability to solve problems by themselves. When encountering problems, children should first observe and experience them to solve them, because this is how parents and teachers solve problems during the process of doing handicrafts. It can develop children 's imagination. In children' s world, cars can fly in the sky and the sun can be green...... Playing with DIY handicrafts can cultivate children's hands-on ability. By using different tools, children's little hands get sufficient exercise. Brushes, paints, scissors, hot melt gun, glue..... They are willing to try any tool and, to a certain extent, develop different skills. During the process of handicrafts, we tried every possible way together, experienced many failures, but always succeeded, which to a certain extent enhanced his self-confidence. Cultivating children's concentration: When children are exploring various tools and handicrafts, they are very focused. If there is no external disturbance, they can keep exploring.

The purpose of the experiment is to enable children to acquire more scientific knowledge and develop their hands-on abilities through game entertainment.

Principle application: The law of conservation of energy, also known as the first law of thermodynamics, states that the total energy of a closed system remains constant. It is one of the universal fundamental laws of nature, generally expressed as: energy neither comes into being out of thin air nor vanishes out of thin air; it merely transforms from one form to another or transfers from one object to another, while the total amount of energy remains constant. From then on, the air pressure of the syringe is pushed through the hose into another syringe, driving the connecting rod to move.

Experimental cognition: When water is added to the syringe, the excavator becomes more sensitive. The density of air is the same as that of water, with water having a greater density.

Knowledge Expansion: Due to its strong transmission force, ease of transmission and configuration, hydraulics is widely used in both industrial and civil sectors. The actuating elements of the hydraulic system, namely the hydraulic cylinder and the hydraulic motor, function to convert the pressure energy of the liquid into mechanical energy, thereby achieving the required linear reciprocating motion or rotary motion.

Knowledge extension: 1. The "ideal liquid" in a sealed container transmits the pressure applied to its surface equally in all directions;
2. The transmission of speed follows the principle of "equal volume change".
3. The pressure of the liquid is established by the external load.
4. Conservation of energy;
5. Hydraulic shock. In a hydraulic system, due to certain reasons, the liquid pressure may suddenly rise in an instant, generating a high pressure peak. This phenomenon is called hydraulic shock.

Safety Warning

All the accessories in this product are special equipment for student experiments and production. Please use it under the supervision and guidance of teachers and parents to ensure safety! All products are prohibited from consumption! Not suitable for children under three years old. Do not press near fire sources. Before assembling the battery, please check whether the circuit is unobstructed, whether the accessories on the circuit are complete, and whether all the contacts are in good contact. On the battery, + is the positive terminal and - is the negative terminal. During the assembly process, be careful not to get glue on your eyes or skin if it is used.