Hao-factory sales _D40 bridge expansion joints _ bridge expansion joints supplied by Hao-engineering rubber. We are Hengshui HaoTong Engineering Rubber Co., Ltd. (www.htgcxj.com) located at: Hebei Hengshui specializes in: grid bearings, bridge expansion joints, water stop, bridge bearings, rubber bearings, spherical steel bearing drive mechanism multi-slit type transmission mechanism J-75-type bridge expansion is determined by the control arm, joysticks and other ancillary pieces of composition. Joystick from the beams in through the web, and a cylindrical bearing where co shown in Figure 5-4. The mechanical motion transmission mechanism as follows: embedded in the body of the box beam driven control arm D160 bridge expansion joints, control arm forcing the lever rotates, joystick push slide axially along the bridge beam bridge expansion joints, beams, while promoting the lateral stringers parallel movement. By Yan-shaped rubber seals rubber and stainless steel clamp bar and clip blocks. Side of the block is about to rubber toothed pattern pressed into the inner recesses of the clip, clip a certain distance of the outer edge of the vertical sleeve with clip every block, with a stainless steel bolt through the clamp block, the rubber grip on the stringer flange below, shown in Figure 5-5 American Watson (Wotson) device a bridge expansion joints, support systems: support beam supporting the bridge expansion joint device in the elastic support may buffer the impact of braking, so that the whole structure skew move easy adjustment. Beams located on each respective group support beam, and the use of a rigid connection (Figure 5-22). Thus, the support beam is fixed to the beam does not tilt when subjected to the brake force level, since the entire assembly of the support beam as a basis, the formation of very stable grid structures. 2, the displacement control system: This telescopic device between the root of the support beam of the bearing boxes are mounted a control spring of polyurethane foam, they may slip from one application to the other side, when the device is opened to the maximum extent, the control generated by the spring The greatest pressure. Conversely D80 bridge expansion joints, compressed to the minimum gap D40 bridge expansion joints, control spring that is fully relaxed, reach, such as the span adjustment purposes, as shown in Figure 5-26.