Abstract: A telescoping rod structure, for a linear actuator, arranged at a connecting position of a telescoping rod of a linear actuator, mainly includes a telescoping rod, a sleeve, and a connecting cap, wherein the telescoping rod is connected to a linear transmitting mechanism, and an accommodating groove passing through the telescoping rod is arranged at top of the telescoping rod; furthermore, the sleeve, arranged in the accommodating groove, is a hollow pipe piece for accommodating a connecting element to pass through; finally, the cap is a hollow lid body, the peripheral of which is arranged a plurality of corresponding projecting seats, at each of which a thorough hole is arranged such that, when the cap is fitted onto the top of the telescoping rod, it may fix the position of the sleeve arranged at the accommodating groove, in the meantime, by making the thorough holes just correspond to the hollow position of the sleeve, it being able to facilitate the connecting element to be fitted and connected securely t

Abstract: A transmission mechanism having a deceleration function includes a guide screw, a worm wheel set, an intermediary ring, an isolator and a passive sleeve. The worm wheel set is fitted onto the guide screw and includes worm wheel and plural claw arms. A spacing slot is formed between any two adjacent claw arms. The intermediary ring is fitted onto a peripheral edge of each claw arm. The isolator surrounds a peripheral edge of the intermediary ring with one side fixed to an actuator. With plural grooves arranged on a peripheral edge thereof, the passive sleeve is fitted onto the guide screw. An accommodation space is formed among the groove, spacing slot and intermediary ring. Each needle roller is accommodated in the accommodation space and inter-contacted with the claw arm, the intermediary ring and the passive sleeve.

Abstract: A connecting assembly for an electric cylinder and a control box includes an electric cylinder, an electric control box and a sheathing ring. The electric cylinder includes an actuator and a contractible pipe module perpendicularly connected to an end of the actuator. The electric control box is disposed on an internal side at a right-angled position with respect to the actuator and the contractible pipe module and slidably connected to a side of the actuator. The sheathing ring is sheathed onto a contractible pipe module and slidably connected to a side of the electric control box. The connecting assembly of the invention not only achieves a screwless application, but also provides a quick, simple, convenient and stable assembling process.

Abstract: A linear actuator includes a base having a positioning post and a motor fixed on one side of the base. A spindle positioning means includes a spindle, a seat and a fixing element. The spindle protrudes from the motor and penetrates the base. One side of the spindle away from the motor is formed with a free end. The seat includes a cylinder and an extension plate protruding outwards from the periphery of the cylinder. The extension plate is provided with a trough. The cylinder is connected to the free end of the spindle. The trough of the extension plate is located to correspond to the positioning post. The fixing element passes through the trough to fix the seat on the positioning post. Via this arrangement, the breakage of the spindle caused by a lateral force can be prevented efficiently.

Abstract: A slide mechanism of a linear transmission apparatus includes an actuating mechanism, a guide screw and a slide mechanism. The slide mechanism includes a fixing base, a primary guide rail, left and right secondary guide rails and a slide element. The fixing base has a through hole for passing the guide screw. The primary guide rail and each secondary guide rail are engaged to the guide screw and connected to the fixing base. The primary guide rail has a top panel and two side panels. Each secondary guide rail has an extended panel protruded from a side proximate to the primary guide rail. The top of each extended panel is not lower than the bottom of the side panel, and the slide element is sheathed onto the exterior of the guide rail, and a nut secured to the guide screw is formed in each guide rail.

Abstract: A lifting device having parallel double screw rods includes a motor, a first transmission and a second transmission. The first transmission includes a screw rod driven by the motor and a telescopic tube assembly threadedly connected to the screw rod and linearly movable relative to the screw rod. The distal end of the telescopic tube assembly is fixedly connected on a connecting piece. The second transmission is provided at one side of the first transmission and parallel thereto. Further, the second transmission includes a sleeve driven by the motor to rotate, a telescopic tube assembly accommodated within the sleeve and axially movable relative to the sleeve, and a screw rod threadedly connected to the telescopic tube assembly and linearly movable relative to the telescopic tube assembly. The distal end of the telescopic tube assembly is connected to the connecting piece. With the above arrangement, each screw rod is interchangeable and the cost can be reduced.

Abstract: A fast-releasing controlling device of an actuator includes a clutching means, a turning means and a pulling means. The clutching means is accommodated within a base of the actuator, and includes a fixing base and a clutch. The turning means is accommodated within the casing of the actuator and includes a swinging arm pivoted to the base. One end of the swinging arm is arranged to correspond to the clutch so as to control clutching action of the clutch relative to the fixing base. The pulling means includes a pulling rod assembly. One end of the pulling rod assembly is accommodated within the casing and connected to the swinging arm, and the other end thereof penetrates out of the casing and is joined with a connecting block.