Abstract: A simulated eye includes a semi-spherical eyeball with a light-transmitting area, a light source, a light transmitting board, and a photochromic layer. The light transmitting board disposed between the eyeball and the light source faces the light-transmitting area. The light transmitting board includes a first portion and a second portion surrounding the first position. The first portion is in a first color. The second portion is in a second color other than the first color. The photochromic layer is formed by photochromic materials coated on a side of the second portion facing the light source. When the light source is turned on, the emitted light irradiates the photochromic layer, whereby an area of the second portion covered by the photochromic layer changes from the second color to a third color similar to or the same as the first color.

Abstract: A simulated eye capable of being changed between a contracted state and a dilated state. The simulated eye includes a semispherical eyeball having a transparent portion, a inductive coil, and an elastic film. The inductive coil coils around the elastic film, a size of the coil elastic film is changeable when being operationally supplied with electricity. When the inductive coil drives the elastic film, a size of the elastic film is changeable, whereby the simulated eye is changed between the contracted state and the dilated state.

Abstract: A simulated eye includes a spherical cap eyeball, a resilient film, a driving mechanism, and a transmission mechanism. The eyeball includes a plurality of guide arms on an inner surface thereof. The resilient film received in the eyeball includes a pupil portion and an iris portion surrounding the pupil portion. The driving mechanism provides a first driving force and a second force opposite to the first driving force in direction. The transmission mechanism arranged between the driving mechanism and the resilient film includes a plurality of transmission members received and movable in the corresponding guide arms.

Abstract: A clutch device includes a sleeve-shaped first drive member, a first seal member, a second seal member, a plug, a second drive member, and a control member. The first drive member, the first seal member and second seal member cooperate to form a sealed chamber filled with hydraulic liquid. The plug divides the sealed chamber into a first chamber and a second chamber, and the plug defines a screw hole and an opening communicating the first chamber with the second chamber respectively. An output shaft is extended from the plug. The second drive member is driven by the first drive member, and includes a screw shaft threadedly engaged with the screw hole of the plug. The control member is configured for covering or uncovering the opening of the plug. The clutch device is used for prevent overload.

Abstract: A battery casing used in an electrical device includes a box body, an electric sheet, a resilient electric portion and a switch apparatus. The box body for receiving a battery has a first sidewall and a second sidewall opposite to the first sidewall. The electric sheet mounted on an inner surface of the first sidewall is capable of electrically connecting with a first electrode of the battery. The resilient electric portion mounted on an inner surface of the second sidewall is capable of electrically connecting with a second electrode of the battery, and compressible to generate restoring forces. The switch apparatus mounted on an outer side of the first sidewall switches between a first position and a second position. When the switch apparatus is in the first position, the first electrode of the battery is detached from the electric sheet.

Abstract: A hinge assembly includes a first connecting member, a second connecting member, a first fixing member, and a second fixing member. The first fixing member can extend through the first connecting member and the second connecting member. The first fixing member includes a first magnet. The second fixing member can extend through the second connecting member and be received in the first connecting member. The second fixing member includes a second magnet. The first fixing member is engaged with the second fixing member under the magnet force between the first magnet and the second magnet.

Abstract: An energy saving lamp is provided. The energy saving lamp includes a main body, a circuit, an adjusting member, and a shielding device. The circuit includes a plurality of parallel loops, each parallel loop includes at least one light emitting member and a pair of open ends, the adjusting member is rotatably connected to the main body; the shielding device is fixed on the adjusting member; a conductive rod is fixed at the shielding device, and is received in an accommodating hole of the main body; when the adjusting member turns under a twisting force, it drives the shielding device to turn, the conductive rod moves in the accommodating hole to contact different number of the pairs of open ends to close the loops of the open ends, the light emitting members in the closed loops are thus turned on.

Abstract: An overload protection device using a rotatable arm rotatably connected to a driving wheel and a resilient member connecting the rotatable arm with the driving wheel for transmitting the torque outputted by a motor to the driving wheel, the resilient member is obviously deformed when the motor is operated in a overload condition to detach the rotatable arm from the motor for protecting the motor from the overload condition.

Abstract: An electronic toy includes a main body and a moving device disposed under the main body for moving the electronic toy. The moving device includes a fixing board, a first wheel, a second wheel, and a motor. The first wheel and the second wheel are magnetic. The first wheel is rotatably fixed to the fixing board for supporting and moving the electronic toy. The second wheel is rotatably fixed to the fixing board and facing the first wheel. The second wheel is operable to apply a magnetic torque to the first wheel when rotating relative to the first wheel, so as to rotate the first wheel. The motor is connected to the second wheel for rotating the second wheel.

Abstract: A wheel includes a main body, a tire, a movable fixing pin, an electromagnet, and an elastic member. The tire is sleeved on the main body and defines a fixing hole. The tire is operable to rotate around the main body. The fixing pin is operable to be inserted into the fixing hole to fix the tire to the main body. The electromagnet is operable to attract the fixing pin to separate the fixing pin from the tire when the electromagnet is powered on. The elastic member is disposed between the electromagnet and the fixing ping, and pushes the fixing pin into the fixing hole when the electromagnet is powered off.

Abstract: An overload protection device for protecting a motor from overload is disclosed. The overload protection device includes a shaft and a load carrying member driven by the driving portion of the shaft. The shaft includes a shaft body and a driving portion on an end of the shaft body. The load carrying member includes at least one magnetic member corresponding to the driving portion. Each of the at least one magnetic member includes a first magnetic member fixed on the load carrying member and a second magnetic member rotatably fixed on the load carrying member. The first magnetic member is located between the second magnetic member and the driving portion of the shaft and the same poles of the first and second magnetic member are opposite to each other. The driving portion is engaged with the first magnetic member and impels the first magnetic member to rotate the load carrying member under the rated load of the motor.

Abstract: An overload protection device includes a motor, a transmitting shaft, a driving wheel, a resilient member, a sensor and a controller. The transmitting shaft including driving arm is meshed with the motor. The driving wheel is rotably engaged with the transmitting shaft at a distal end. The resilient member is connected to the driving arm at one end, and connected to the driving wheel at another end for driving the driving wheel to rotate. The sensor is mounted on the driving wheel and covered by the driving arm, and configured for and outputting a signal when the transmitting shaft is rotated relative to driving wheel. The controller is installed in the transmitting shaft and electrically coupled with the sensor for receiving the signal outputted from the sensor and shutting down the motor correspondingly.

Abstract: An overload protection device includes a motor, a rotatable shaft, a driven wheel, and a transmission mechanism. The rotatable shaft is meshed with the motor. The rotatable shaft includes a rod and a driving arm. A connection pole is formed on the driving arm. An inner surface of the driven wheel forms a protrusion. A sidewall of the protrusion defines a cutout therein. The transmission mechanism includes a resilient member and two arms rotatably connected on the connecting pole. The transmission mechanism is wedged in the cutout. when the motor is overloaded, the torque applied on the arms by the drive force of the motor becomes greater than the torque applied on the arms by the resilient force of the resilient member, the resilient member can no longer hold the transmission mechanism in a wedge shape, the arms become parallel each other to slide out of the cutout.

Abstract: A driving device includes a motor, a rotatable shaft rotated by the motor, a driven member, a magnetic material spring, and a power source. The driven member sleeves on an end of the rotatable shaft, and includes an end surface with at least one latching groove defined thereon. The magnetic material spring sleeves the rotatable shaft, and includes a first end fixed to the rotatable shaft and an opposite second end capable of inserting into the latching groove of the driven member. The power source includes two electrodes. The motor and the spring are electrically connected in series between the two electrodes of the power source.

Abstract: A time display device comprises a dial plate; a plurality of time indication portions set in the dial plate; and a plurality of groups of luminophors. Each of the groups of luminophors corresponds to a time indication portion, and comprises a first luminophor, a second luminophor, and a third luminophor. A clock unit provides current time information. A first switch unit electrifies/powers off the first luminophor. A second switch unit electrifies/powers off the second luminophor. A third switch unit electrifies/powers off the third luminophor. A hour hand controlling module obtains a hour value, and controls the first switch unit to electrify the first luminophor of the time indication portion corresponding to the obtained hour value. A minute hand controlling module obtains the current minute value, and controls the second switch and/or the third switch unit to electrify the corresponding luminophor.

Abstract: A replica eye includes an eyeball with a light-transmitting area for transmitting light, a resilient film, a driving member, and a transmission mechanism. The resilient film includes a pupil portion and an iris portion surrounding the pupil portion. The pupil portion is in a first color. The iris portion is in a second color other than the first color. The driving member has a shaft. The driving member provides rotating forces to the shaft. The transmission mechanism comprises a rotor fastened on the shaft of the driving member, and a plurality of flexible members in radial arrangement. A first end of each flexible member away from the rotor is fastened on an outer edge of the resilient film. When the driving member rotates the transmission mechanism, centrifugal forces are imparted on the plurality of flexible members, the plurality of flexible members stretches the pupil portion and the iris portion.

Abstract: A crawling device includes a first end with a first magnet recessed therein, a second end with a second magnet recessed therein, an elastic member disposed between the first end and the second end, a power source module, and a controller. When the first and second ends are supported on a supporting surface, and the controller connects the power source module to the first end and the elastic member, the first magnet extends beyond the first end onto the supporting surface and the elastic member becomes compressed toward the first end. When the elastic member is compressed, and the controller connects the power source module to the second end, the second magnet extends beyond the second end onto the supporting surface and the elastic member returns to the normal state.

Abstract: A simulated eye includes an eyeball, a first winding mechanism with a spool, a first driving member, a second winding mechanism with a reel, a second driving member and a strip. The first driving member is configured for driving the first winding mechanism to rotate in a first direction and a second direction opposite to the first direction. The second driving member is configured for driving the second winding mechanism to rotate in the first direction and the second direction. The strip has two ends wound around the spool and the reel correspondingly. The strip is wound around the spool when the first driving member and the second driving member rotate the first winding mechanism and the second winding mechanism in the first direction correspondingly.

Abstract: A charger capable of clamping portable communication device is provided. The charger includes a body, a securing portion, and at least one elastic element, wherein the at least one elastic element is deformable elastically when electricity power is supplied thereto, and recoverable to its normal shape when the power is off. The at least one elastic element joins the securing portion to the body. When a user uses the charger, firstly, places the portable communication device between the body and the securing portion, then, supplies electricity power, and the at least one elastic element contracts and drives the securing portion to move towards the body, as a result, the portable communication device is clamped.

Abstract: A floating lamp system is provided. The system includes an object having a first inner wall and a second inner wall. A first conductive element is mounted on the first sidewall and electrically connected to the anode of a power source. A second conductive element is mounted on the second wall and electrically connected to the cathode of the power source. The system further includes a floating lamp having a balloon and a lighting element mounted in the balloon. An anode contact point is mounted on the top of the balloon and a cathode contact point is mounted on the bottom of the balloon. The lighting element is electrically connected to the anode contact point and the cathode contact point. When the floating lamp floats, causing the anode contact point to contact with the first conductive element, the lighting element is lit up.