Abstract: An exercise intensity assessing system includes a physiological information sensor, a signal transmitter connected with the physiological information sensor, a central control host connected with the signal transmitter, and a cloud database connected with the central control host. The physiological information sensor senses physiological information of an exerciser before and after the exerciser exercises. The physiological information is transmitted by the signal transmitter to the central control host, and transmitted by the central control host to the cloud database for being diagnosed and analyzed by a fitness instructor. The cloud database obtains a forecasted watt value corresponding to the physiological information, and obtains a resistance level of different fitness apparatuses according to the forecasted watt value.

Abstract: An intelligent exercise intensity assessing system includes an exercise testing machine, a physiological information sensor, a signal transmitter connected with the physiological information sensor, a central control host connected with the signal transmitter, and a cloud database connected with the central control host. The physiological information sensor senses physiological information of an exerciser before and after the exerciser operates the exercise testing machine. The physiological information is transmitted by the signal transmitter to the central control host, and transmitted by the central control host to the cloud database. The cloud database analyzes the physiological information to obtain a corresponding forecasted watt value, and obtains a resistance level of different fitness apparatuses according to the forecasted watt value.

Abstract: An external metering valve disposed on a gas fuel tank including an outlet rod is provided. The outlet rod includes an outlet orifice at a front end thereof. The external metering valve includes a metering valve and a gas guiding member. The metering valve includes a metering chamber. The gas guiding member includes a communication pipe, a blocking portion on the communication pipe, a discharging channel and an inlet orifice. The gas guiding member has a sealing outlet position and a metering outlet position. At the sealing outlet position, the outlet orifice outputs a gas and stores the gas in the metering chamber. At the metering outlet position, the blocking portion seals the outlet orifice through an airtight ring, and outputs the gas stored in the metering chamber through the inlet orifice and the discharging channel.

Abstract: An external metering valve disposed on a gas fuel tank including an outlet rod is provided. The outlet rod includes an outlet orifice at a front end thereof. The external metering valve includes a metering valve and a gas guiding member. The metering valve includes a metering chamber. The gas guiding member includes a communication pipe, a blocking portion on the communication pipe, a discharging channel and an inlet orifice. The gas guiding member has a sealing outlet position and a metering outlet position. At the sealing outlet position, the outlet orifice outputs a gas and stores the gas in the metering chamber. At the metering outlet position, the blocking portion seals the outlet orifice through an airtight ring, and outputs the gas stored in the metering chamber through the inlet orifice and the discharging channel.

Abstract: An adapter structure for a gas fuel bottle cooperates with a bottle and is connected with a power tool. The adapter structure contains a body connecting with the bottle, a gas sealing assembly fixed inside the body, a fixing member cooperating with a spherical connecting portion of the power tool, and a plurality of elastic retaining members secured on the fixing member. Each elastic retaining member forms an elastic spreading mouth, and a diameter of the elastic spreading mouth is normally smaller than that of the spherical connecting portion, the elastic spreading mouth is pressed to expand so that the spherical connecting portion slides into or disengages from the opening. Each of the elastic retaining members is separated from the fixing member, whereby the adapter structure benefits easy die sinking and assembly.

Abstract: An adapter structure for a gas fuel bottle cooperates with a bottle and is connected with a power tool. The adapter structure contains a body connecting with the bottle, a gas sealing assembly fixed inside the body, a fixing member cooperating with a spherical connecting portion of the power tool, and a plurality of elastic retaining members secured on the fixing member. Each elastic retaining member forms an elastic spreading mouth, and a diameter of the elastic spreading mouth is normally smaller than that of the spherical connecting portion, the elastic spreading mouth is pressed to expand so that the spherical connecting portion slides into or disengages from the opening. Each of the elastic retaining members is separated from the fixing member, whereby the adapter structure benefits easy die sinking and assembly.

Abstract: A shooting mode switch control mechanism used in a nail gun is disclosed to include a trigger, a lever function stop member pivotally mounted in the trigger, a spring member stopped against the stop member and a switch pivotally mounted in the trigger. The spring member and the switch are arranged at two sides relative to the pivoted area of the stop member so that when the switch is in the single-shooting position and the trigger is released, the second end portion of the stop member is forced by the spring member into the moving path of the safety bar and pushable by the safety bar for enabling the stop member to activate the air-valve switch once each time the trigger is pressed. When the switch is in the continuous-shooting position, the first end portion of the stop member is stopped against the switch for enabling the second end portion of the stop member to be continuously pushed by the safety bar to activate the air-valve switch continuously.

Abstract: A shooting mode switch control mechanism used in a nail gun is disclosed to include a trigger, a lever function stop member pivotally mounted in the trigger, a spring member stopped against the stop member and a switch pivotally mounted in the trigger. The spring member and the switch are arranged at two sides relative to the pivoted area of the stop member so that when the switch is in the single-shooting position and the trigger is released, the second end portion of the stop member is forced by the spring member into the moving path of the safety bar and pushable by the safety bar for enabling the stop member to activate the air-valve switch once each time the trigger is pressed. When the switch is in the continuous-shooting position, the first end portion of the stop member is stopped against the switch for enabling the second end portion of the stop member to be continuously pushed by the safety bar to activate the air-valve switch continuously.

Abstract: A gas can mounting structure installed in a gas nail gun having a vertically movable safety rod is disclosed to include a gas can holder for accommodating a gas can, a positioning mechanism mounted in the gas can holder and having two side plate members for guiding insertion of a gas can into the inside of the gas can holder into position, and a spring-supported roller rotatably and slidably coupled between the two side plate members for stopping against the gas can being loaded in the gas can holder to prevent gas leakage during installation of the gas can.

Abstract: A gas can mounting structure includes a holder frame formed of a part of a gas-operated nail gun and defining an accommodation chamber for accommodating a gas can, a cover pivoted to the holder frame and turnable relative to the holder frame to close/open the accommodation chamber, and a control switch mounted in the holder frame and movable between a first position where a stop block of the button of the control switch is stopped at a stop block at the cover to lock the cover in the close position and a second position where the stop block of the button is released from the stop block of the cover for allowing the cover to be biased from the close position to the open position for easy loading/unloading of a gas can.

Abstract: A gas nail gun includes a trigger, a pivoted baffle plate, and a liftable safety rod. When the safety rod is kept in the non-triggering position and not stopped against the workpiece, the baffle plate stops the trigger from operation. When the safety rod is stopped against the workpiece and lifted to the triggering position, the baffle plate is biased, allowing the trigger to be pressed. When the trigger is pressed and stopped against the baffle plate, the trigger is hooked up with a hook of the baffle plate so that the baffle plate is prohibited from biasing upon stoppage of the safety rod against the workpiece, avoiding accidental triggering of the trigger.

Abstract: A gas can for gas nail gun includes a can body having a top opening, a gas-filled inner bag mounted inside the can body, an inner bag connector, which has a tube holder joined to the inner bag and defining an axial through hole and a tube member that defines an air passage and is inserted through the axial through hole of the tube holder and rotatable between an unpositioned position where the tube member is removable from the tube holder and a positioned position where the tube member is locked to the tube holders, a cap fixedly fastened to the tube member and joined to the can body to block the top opening of the can body, and an air valve installed in the cap for guiding the gas out of the inner bag to the outside of the gas can.

Abstract: A gas can mounting structure includes a holder frame formed of a part of a gas-operated nail gun and defining an accommodation chamber for accommodating a gas can, a cover pivoted to the holder frame and turnable relative to the holder frame to close/open the accommodation chamber, and a control switch mounted in the holder frame and movable between a first position where a stop block of the button of the control switch is stopped at a stop block at the cover to lock the cover in the close position and a second position where the stop block of the button is released from the stop block of the cover for allowing the cover to be biased from the close position to the open position for easy loading/unloading of a gas can

Abstract: A gas can mounting structure installed in a gas nail gun having a vertically movable safety rod is disclosed to include a gas can holder for accommodating a gas can, a positioning mechanism mounted in the gas can holder and having two side plate members for guiding insertion of a gas can into the inside of the gas can holder into position, and a spring-supported roller rotatably and slidably coupled between the two side plate members for stopping against the gas can being loaded in the gas can holder to prevent gas leakage during installation of the gas can.

Abstract: A protection device of a nail driver for preventing from triggering in a state of ineffective actuation comprises a trigger device including a trigger, a trigger sheet, and an ejecting rod; the trigger being installed at an inner side of the body of the nail driver; a lower end of the trigger sheet being elastically pivoted to an inner side of the trigger; thus, the trigger sheet elastically resisting against the ejecting rod; therefore, when the trigger is pressed, the trigger sheet will drive the ejecting rod to pivotally rotate; a safety device including a sliding unit, and a driving rod; the sliding unit being slideably installed at a lower side of the body; one end of the sliding unit extending to a shooting head of the nail driver; the driving rod being elastically pivoted at another end of the sliding unit; the driving rod is a unidirectional confinement structure.

Abstract: A protection device of a nail driver for preventing from triggering in a state of ineffective actuation comprises a trigger device including a trigger, a trigger sheet, and an ejecting rod; the trigger being installed at an inner side of the body of the nail driver; a lower end of the trigger sheet being elastically pivoted to an inner side of the trigger; thus, the trigger sheet elastically resisting against the ejecting rod; therefore, when the trigger is pressed, the trigger sheet will drive the ejecting rod to pivotally rotate; a safety device including a sliding unit, and a driving rod; the sliding unit being slideably installed at a lower side of the body; one end of the sliding unit extending to a shooting head of the nail driver; the driving rod being elastically pivoted at another end of the sliding unit; the driving rod is a unidirectional confinement structure.

Abstract: The present invention refers to a pushing device of a drawer type magazine apparatus, especially for use with nail guns, in which the magazine apparatus is coupled to a barrel and includes a magazine unit. The magazine unit is equipped with a fixed magazine and a removable nail loading assembly, which cooperates with a pushing device and a nail pusher. The pushing device is equipped with an accommodating member and a spiral spring, by means of the cooperation of the accommodating member and the spiral spring of the pushing device and the nail pusher, the nails can be pushed precisely and stably with an average thrust, so that the situation of nails slanting or getting nails stuck will not happen. The objectives of promoting the convenience for operators and providing durable nail guns are achieved.

Abstract: The present invention refers to a dry firing prevention device, especially for use in a nail gun with a drawer type magazine, in which the main body of the nail gun is equipped with a safety apparatus and a dry firing prevention device near a trigger. The dry firing prevention device is disposed on the magazine. When a nail pusher pushes nails until where last few nails are left, the nail pusher will contact with one end of the dry firing prevention device and the other end of the dry firing prevention device blocks the safety apparatus, so that the safety apparatus retains in a safety status to prevent the nail gun from dry firing, so as to prolong the lifetime of the nail gun.

Abstract: A magazine with a positioning device for a nail gun includes a magazine that has a nail loading port on one end thereof, and a gliding part that has a protruding part and a locking part. The magazine has fixing parts, penetrating parts and a stopping part. The gliding device has a nail storing part and is inserted into the receiving chamber. The gliding device is fixed by a positioning device, so that the gliding device will not depart from the magazine due to the bounce motion while nailing, and the protruding part and the locking part of the gliding device are not easy to get abrasion. The objectives of providing the operator a safe and secured working environment, prolonging the lifetime of the gliding device and securing the gliding device in position will be attained.

Abstract: A magazine with a positioning device for a nail gun includes a magazine that has a nail loading port on one end thereof, and a gliding part that has a protruding part and a locking part. The magazine has fixing parts, penetrating parts and a stopping part. The gliding device has a nail storing part and is inserted into the receiving chamber. The gliding device is fixed by a positioning device, so that the gliding device will not depart from the magazine due to the bounce motion while nailing, and the protruding part and the locking part of the gliding device are not easy to get abrasion. The objectives of providing the operator a safe and secured working environment, prolonging the lifetime of the gliding device and securing the gliding device in position will be attained.