Abstract: A rotary screw compressor includes a compressor assembly and a drive motor assembly. The compressor assembly includes a compressor housing, a first screw rotor and a second screw rotor installed in the compressor housing and engaged with each other. An end of the first screw rotor is an engaging end. The drive motor assembly includes a motor housing, a motor rotor, a motor stator and a centering bushing installed in the motor housing, and the motor stator installed on an outer side of the motor rotor and capable of driving the motor rotor to rotate, and the centering bushing is passed and connected to the inner circumference of the motor rotor and has an end sheathed on the engaging end, so that the motor rotor can drive the first screw rotor to rotate through the centering bushing and the engaging end.

Abstract: A performing device of an impulse-like gesture recognition system executes an impulse-like gesture recognition method. A performing procedure of the impulse-like gesture recognition method includes steps of: receiving a sensing signal from a sensing unit; determining a prediction with at least one impulse-like label according to the sensing frames by a deep learning-based model; and classifying at least one gesture event according to the prediction. The gesture event is classified to determine the motion of the user. Since the at least one impulse-like label is used to label at least one detection score of the deep learning-based model, the detection score is non-decreasing, reaction time of the at least one gesture event for an incoming gesture is fast, rapid consecutive gestures are easily decomposed, and an expensive post-processing is not needed.

Abstract: A rotary screw compressor includes a compressor assembly and a drive motor assembly. The compressor assembly includes a compressor housing, a first screw rotor and a second screw rotor installed in the compressor housing and engaged with each other. An end of the first screw rotor is an engaging end. The drive motor assembly includes a motor housing, a motor rotor, a motor stator and a centering bushing installed in the motor housing, and the motor stator installed on an outer side of the motor rotor and capable of driving the motor rotor to rotate, and the centering bushing is passed and connected to the inner circumference of the motor rotor and has an end sheathed on the engaging end, so that the motor rotor can drive the first screw rotor to rotate through the centering bushing and the engaging end.

Abstract: A two-stage oil-injected screw air compressor includes an integrated compression casing, and the integrated compression casing further includes a first stage compression chamber, an intermediate cooling channel, and a second stage compression chamber parallel stacked in the integrated compression casing. A straightforward oil injector aims at the intermediate cooling channel to spray lubricating oil into the intermediate cooling channel.

Abstract: A laser generating device including a housing and a laser module assembly. The laser module assembly is at least partially housed in the housing. The laser module includes a laser module. The laser module includes a laser generator, a transparent member and a cone member. The laser generator generates a laser beam which is directed towards a cone member. The cone member reflects the laser beam into a laser line. The transparent member has a generally cylindrical shape. The cone member includes a cone section including a reflecting surface and the cone section is located inside the transparent member. The cone member further includes a connection portion, the connection portion including a flange. The flange is located outside the transparent member at an outer surface of the transparent member.

Abstract: A wearable device is configured to be worn by a first user, and to output pressure data indicating an amount of the pressure sensed thereby. An electronic device is communicatively connected to the wearable device for receiving the pressure data. In response to receipt of an initiating signal from a host device, the electronic device, continuously within a predetermined time period, accumulates a first number of exercise movements done by the first user based on the pressure data, receives data related to a second number of exercise movements done by a second user from the host device, and display a dynamic image indicating a relationship between the first number and the second number.

Abstract: A wearable device is configured to be worn by a first user, and to output pressure data indicating an amount of the pressure sensed thereby. An electronic device is communicatively connected to the wearable device for receiving the pressure data. In response to receipt of an initiating signal from a host device, the electronic device, continuously within a predetermined time period, accumulates a first number of exercise movements done by the first user based on the pressure data, receives data related to a second number of exercise movements done by a second user from the host device, and display a dynamic image indicating a relationship between the first number and the second number.

Abstract: A laser generating device including a housing and a laser module assembly. The laser module assembly is at least partially housed in the housing. The laser module includes a laser module. The laser module includes a laser generator, a transparent member and a cone member. The laser generator generates a laser beam which is directed towards a cone member. The cone member reflects the laser beam into a laser line. The transparent member has a generally cylindrical shape. The cone member includes a cone section including a reflecting surface and the cone section is located inside the transparent member. The cone member further includes a connection portion, the connection portion including a flange. The flange is located outside the transparent member at an outer surface of the transparent member.

Abstract: A two-stage oil-injected screw air compressor includes an integrated compression casing, and the integrated compression casing further includes a first stage compression chamber, an intermediate cooling channel, and a second stage compression chamber parallel stacked in the integrated compression casing. A straightforward oil injector aims at the intermediate cooling channel to spray lubricating oil into the intermediate cooling channel.

Abstract: The present invention discloses an electronic device having a power management module and a power management method thereof. Within the power management method is used for an electronic device, which has a first power module, a second power module and the loads. The power management method comprises the following step: (1) monitoring the first power module and the second power module; (2) if the first power module and the second power module are activated at the same time, sequentially stopping a supply of electric power to at least one of the loads until the electronic device has total load current smaller than a reference value.

Abstract: The present invention discloses an electronic device having a power management module and a power management method thereof. Within the power management method is used for an electronic device, which has a first power module, a second power module and the loads. The power management method comprises the following step: (1) monitoring the first power module and the second power module; (2) if the first power module and the second power module are activated at the same time, sequentially stopping a supply of electric power to at least one of the loads until the electronic device has total load current smaller than a reference value.

Abstract: An assembly rock climbing device having a rock climbing body comprised of several three-dimensional assembly blocks. Each of the assembly blocks has at least one surface and at least one assembly surface to be connected with adjacent assembly blocks. The assembly blocks are connected via their assembly surfaces to form the rock climbing body. The surfaces of the assembly blocks combine to form at least one climbing surface for users to climb. Rocks are disposed on the climbing surface for users to hold.

Abstract: A rock climbing practice device includes a body which is rotatable 360 degrees about an axle support by a support unit. The body has multiple climbing surfaces and side surfaces, and multiple climbing holds are connected to the climbing surfaces which are formed along the rotational direction of the body. A shaft is connected to the support unit and co-rotated with the axle. A damping unit is connected to the shaft so as to provide proper damping force to the body and an adjustment unit is connected to the damping unit to adjust the damping force. When climbers climb the body which is rotated due to the weight of the climbers and the rotated body provides the climbing surfaces at different inclinations.

Abstract: A rock climbing practice device includes a body which is rotatable 360 degrees about an axle support by a support unit. The body has multiple climbing surfaces and side surfaces, and multiple climbing holds are connected to the climbing surfaces which are formed along the rotational direction of the body. A shaft is connected to the support unit and co-rotated with the axle. A damping unit is connected to the shaft so as to provide proper damping force to the body and an adjustment unit is connected to the damping unit to adjust the damping force. When climbers climb the body which is rotated due to the weight of the climbers and the rotated body provides the climbing surfaces at different inclinations.

Abstract: A waist exercising device has a housing case holding a transmission motor that drives a gear box via a decelerating machine. The gear box is connected with a shaft that leads a guiding portion to perform a circular motion. The user's waist is then guided to perform a swaying motion.

Abstract: A rock climbing apparatus including a support stand on which a main body frame is mounted. The main body frame has two lateral columns, several transverse support beams and several longitudinal support columns built between the lateral columns to serve as a support skeleton. A rotary mechanism is arranged in the main body frame, including at least two chains in parallel to the length of the main body frame, multiple transverse slats in parallel to the width of the main body frame and a power supply for driving the chains to circularly revolve. The longitudinal support columns of the main body frame are arranged in a position where the chains are positioned. Each longitudinal support column has a rib rail, whereby the link shafts of the chains are slidably leant on the rib rail. The transverse slats are fixed on the chains and immediately adjacent to each other. The chains are positioned near the middle of the transverse slats. The transverse slats can circularly revolve along the lateral columns.

Abstract: A rock climbing exerciser includes a main frame having a base member abutting against a support surface and two stands upwardly perpendicularly extending from the base member. The two stands are parallel to each other. A cyclic device is mounted between the two stands. The cyclic device includes a first drive and a second drive device synchronously operated with each other. An endless strap is mounted around the first drive device and second drive device. Multiple grips extend through the endless strap and are secured on the cyclic device for user to climb thereon. A speed reducer is mounted on one of the two stands and connected to the second drive device to reducing the moving speed of the endless strap during operating.

Abstract: A ball with a jigsaw cover includes a hollow core having a first hemisphere and a second hemisphere fixedly connected to each other to form a complete spheroid. Multiple puzzle pieces are detachably adhered to an outer periphery of the hollow core and each has a curvature equal to that of the hollow core for completely covering the outer periphery of the hollow core. Each puzzle piece defines at least one concave portion and forms at least one convex portion laterally extending from each of the multiple puzzle pieces. Each concave portion receives a corresponding convex portion of an adjacent puzzle piece such that the multiple puzzle pieces are connected to one another.

Abstract: A ball with a jigsaw cover includes a hollow core having a first hemisphere and a second hemisphere fixedly connected to each other to form a complete spheroid. Multiple puzzle pieces are detachably adhered to an outer periphery of the hollow core and each has a curvature equal to that of the hollow core for completely covering the outer periphery of the hollow core. Each puzzle piece defines at least one concave portion and forms at least one convex portion laterally extending from each of the multiple puzzle pieces. Each concave portion receives a corresponding convex portion of an adjacent puzzle piece such that the multiple puzzle pieces are connected to one another.

Abstract: A positioning device of a sinking pump has a body. The body is formed with a receiving portion. A pad made of elastic material can be received in the receiving portion. The pad is inflatable as being filled with fluid and then expands to resist against the peripheral wall of the channel for installing a sinking pump so as to isolate the channel and position the sinking pump. Water from the sinking pump may be drained out from a hole penetrating through the body.