Abstract: A housing for high-speed rotational wood chopping cutter includes parallel plates, one or more expelling portion, and several blocking plates. It can form a solid hollow structure having an isolated storing space. There is a pair of guiding slots for easily installing a high-speed rotational wood chopping cutter inside the storing space. The housing has an ingress for inputting a wood material to be cut and one or more egress portions to expel chopped debris or pieces away due to a centrifugal force caused by high-speed rotation. In this invention, the entire structure is solid and safe. The structure is simple. It has special guiding slots. Plus, it has several expelling modes.

Abstract: A rotational cutting blades assembly for wood chopper is disclosed. It mainly comprises a rotational shaft, several blade seats, and several cutting blades. Each blade seat has an inner edge, an outer edge, a fixing hole near its inner edge, and a debris guiding recess disposed on the outer edge. This blade seats are fixed on the shaft and alternatively separated each other. Concerning this invention, it is easy to replace or to repair it. The blade life can be prolonged. The debris guiding is smooth. And, the power consumption is less.

Abstract: A micro-adjustable hydraulic driving device includes a hydraulic cylinder, a control valve, and a cam. By utilizing a cam, it can precisely control the position of the sliding block and controls the size of the flowing cross-sectional area. So, it can achieve the purpose of precise controlling for the push rod to move slowly or stay at a desired position within the stroke. This invention can precisely control the moving speed and position of the push rod of the heavy load hydraulic cylinder. It can achieve the micro-adjusting effect. It can quickly reverse the moving direction and is easy to operate and control. And, its structure is simple with lost cost.

Abstract: An improved exerciser bike includes a frame having a front wheel and a handle for steering the front wheel, and includes two rear wheel axles. Two rear wheels are rotatably secured to the rear wheel axles. Each of the foot supports has a middle portion pivotally coupled to the frame. Two chains are engaged on the ratchet sprocket wheels. Each chain is first connected to a wire element which winds on a pulley and then connected to a resilient element and finally secured to an extension rod of the frame. So, the resilient element's length can be designed to be longer to magnify the restoring force and prolong the life of the resilient element.

Abstract: A faucet structure mainly comprises an outer pipe, an inner seat and a rotatable portion. The inner seat has a central ring portion and several fixing ribs. The rotatable portion has a screw portion and a sealing portion. So, the outer surface of the sealing portion can be rotated in to close the water outlet. Or, it can be rotated out by a user's fingers to form a ring-shaped gap for allowing water flow out. In summary, in this invention, the washing area is larger. There is no need to wash the faucet after the hands are washed. It significantly improves the public sanitary level. The application scope is wide. The manufacture cost is low. It has various designs. The leaking problem caused by sands can be solved. The out flowing water is more evenly. And, it can save more water.

Abstract: The present invention relates to a pedal lever distance adjusting structure mounted between a sport exercise cycle and two pedal support racks. Each of the two pedal lever support racks is provided with multiple through holes. Two adjusting tubes are each provided to mate with the pedal lever support rack, and each adjusting tube defines multiple through holes to mate with the through holes of the pedal lever support rack. An insertion pin in turn extends through the through hole of the adjusting tube, and the through hole of the pedal lever support rack. In such a manner, the distance between the pedal lever support rack and the adjusting tube can be adjusted freely, thereby facilitating adjusting the distance between two pedal levers and a human body, so that the present invention may be available for a user whose two feet have different lengths.

Abstract: A ventilating bed cushion includes a frame, a ventilating device, an air supplying device, an upper layer of air-permeable fabric and a lower layer of waterproof fabric. The ventilating device has a polished upper surface and a lower surface. The upper surface is formed with multiple vents. The ventilating device is formed with an inner air guide way for supplying a predetermined amount of air. Therefore, a specific portion of a patient's body lying on the bed cushion can be forcedly ventilated so as to avoid decubitus. In addition, the ventilating bed cushion is widely applicable and can be easily operated. In addition, it has a massaging effect and a low-cost simple structure.

Abstract: The water and land walking device includes a pair of step bodies for a user to stand thereon and float on the water. Each step body includes one or multiple one-way water-resisting plates which are pivotally disposed on the step body and can be biased by a predetermined angle and two projecting fins for preventing the one-way water-resisting plates from contacting with the ground when walking on the ground. The walking device provides transportation, exercising and leisure functions.

Abstract: An exerciser bike includes a frame having a front wheel and a handle for steering the front wheel, and includes two rear wheel axles. Two rear wheels are rotatably secured to the rear wheel axles by two ratchet sprocket wheels. Two foot supports each has a middle portion pivotally coupled to the frame. Two chains are engaged on the ratchet sprocket wheels and each has two ends both secured to the foot support. The exerciser bike may be turned with the rear wheels when the rear wheels are actuated with different speeds. So, this invention is safe, stable and easy to be controlled.