58results about How to "Increase working length" patented technology

A socket includes a main body including a first cylinder having an outer periphery formed with a plurality of outer teeth, and a second cylinder having an inner periphery formed with a plurality of inner teeth. The inner teeth of the main body and the outer teeth of the main body have the same tooth number and have the corresponding tooth shape. Thus, the sockets can co-operate with each other to increase the working length, and the sockets co-operating with the ratchet wrench can be used in an elongated shallower space.

An extension structure includes a track, an extension table, and a sliding interface unit. Thus, the extension table can be moved on the track rapidly, easily and conveniently by the sliding guide motion of the sliding interface unit so as to extend the working length of the table of the table saw. In addition, the sliding interface unit has a cheaper price than that of the bearings, thereby decreasing the costs of fabrication of the extension structure. Further, the extension structure is assembled easily and conveniently, thereby facilitating a user mounting the extension structure.

A drive control system for conveyor utilizes a dynamic chain pull calculation program that is integrated with a PLC, which communicates to a plurality of controllers. The controllers in turn automatically adjust their associated drive motors so as to maximize efficiency at moving material on a conveyor system. Sensing devices provide continuous load parameters to a PLC that in turn, processes the data and adjusts the system's operation based upon desired conditions.

An extension structure includes a track, an extension table, and a sliding interface unit. Thus, the extension table can be moved on the track rapidly, easily and conveniently by the sliding guide motion of the sliding interface unit so as to extend the working length of the table of the table saw. In addition, the sliding interface unit has a cheaper price than that of the bearings, thereby decreasing the costs of fabrication of the extension structure. Further, the extension structure is assembled easily and conveniently, thereby facilitating a user mounting the extension structure.

The invention relates to the technical filed of detection on structural members, in particular to a strength detection device of a structural member, wherein the strength detection device of the structural member is used for improving accuracy of strength detection of the structural member. The strength detection device of the structural member comprises a barrel-shaped shell body, a front cover, a rear cover, an elastic driving bar, a guide bar, an elastic driving hammer, an elastic driving tension spring, a guide flange, a reset pressure spring, a hanging hook component, a locking button, an unhook component and a scale component. The front cover is fixed at one end of the barrel-shaped shell body. The rear cover is fixed at the other end of the barrel-shaped shell body. The elastic driving bar is arranged in the barrel-shaped shell body, and one end of the elastic driving bar extends out of the front cover. The guide bar is fixedly connected with the other end of the elastic driving bar. The elastic driving hammer is sleeved on the guide bar. The elastic driving tension spring is fixedly connected with the elastic driving hammer and the front cover. The guide flange is fixedly connected with the guide bar. The reset pressure spring is fixedly connected with the rear cover and the guide flange respectively. The hanging hook component is fixed on the guide flange. The locking button is arranged on the barrel-shaped shell body. The unhook component is arranged inside the barrel-shaped shell body. The scale component is arranged in the barrel-shaped shell body and is used for measuring a rebound value of the elastic driving hammer.

The invention discloses an expansion and contraction joint for a bridge. The expansion and contraction joint comprises a force transfer device, a hydraulic cylinder and a connecting device, wherein the connecting device is positioned on the hydraulic cylinder, the force transfer device is positioned on the connecting device and adopts a force transfer block body (1), the cross section shape of the force transfer block body (1) is a reverse right-angle trapezoidal shape, the force transfer block body (1) is of a hexahedron structure, and comprises a located plane of a right-angle waist, a located plane of an inclined edge, an upper bottom surface, a lower bottom surface, a front surface and a back surface, the located plane of the inclined edge is a work surface, the connecting device adopts a pad block (2), the hydraulic cylinder comprises a hydraulic container (3) and a piston (4), the hydraulic container (3) is a container with an opening at the upper part, the piston (4) is arranged at the opening part of the hydraulic container (3), and the inside of a cavity defined by the hydraulic container (3) and the piston (4) is filled with pressure bearing liquid. The expansion and contraction joint has the advantages that the manufacturing is simple and convenient, the structure is firm and reliable, and the safety is high.