Abstract: A fixed structure of solar panels and C-shaped steel includes a spacer disposed on a top surface of the C-shaped steel with two opposite sides each forming a positioning surface for solar panels abutting against so that solar panels are spaced apart and are positioned by the spacer. A fastening frame is disposed above the C-shaped steel while a pressing member is disposed under the C-shaped steel. The pressing member has a first end abutting against the C-shaped steel and a second end abutting against the solar panels. A bolt with a nut penetrates through the fastening frame and the pressing member. The pressing member, by locking the nut, abuts against the C-shaped steel and the solar panels so that the fastening frame and the C-shaped steel are in cooperation to clamp the solar panels for fastening.

Abstract: A plastic panel includes a middle portion. Two opposing sides of the middle portion are defined as a first engaging portion and a second engaging portion, respectively. Each engaging portion has a concave portion, a convex portion, a protruding portion and a recess portion. Two adjacent plastic panels can be firmly connected through their concave portions, convex portions, protruding portions and recess portions. Besides, two adjacent plastic panels facing up or facing down can be engaged and connected with each other.

Abstract: A waterproof and electricity-insulating support structure for solar panels includes a base frame having a top portion with two side portions disposed at two sides of the top portion. Each of the side portions connects with a bottom portion to be fixed on a steel frame forming a roof. A fastening member is fixed to the top portion of the base frame to form an assembling space for solar panels therebetween. A plurality of rubber strips for waterproofing and insulating from electricity are disposed between the side portions and the solar panels and between the fastening member and the solar panels.

Abstract: A waterproof assembly structure for solar panels arranged in rows and columns with a plurality of longitudinal intervals and lateral intervals therebetween includes a plurality of fastening frames disposed at the longitudinal intervals for fastening the solar panels and a plurality of waterproof frames disposed at the lateral intervals for waterproofing. Each of the waterproof frames includes a cover plate abutting against the solar panels for covering the lateral interval, an extending block provided on the cover plate passing through the lateral interval and a waterproof gasket disposed between the cover plate and the solar panels. A pulling member is connected to the extending block for forcing the cover plate to abut against the solar panels firmly by pulling the extending block.

Abstract: A waterproof and electricity-insulating support structure for solar panels includes a base frame having a top portion with two side portions disposed at two sides of the top portion. Each of the side portions connects with a bottom portion to be fixed on a steel frame forming a roof. A fastening member is fixed to the top portion of the base frame to form an assembling space for solar panels therebetween. A plurality of rubber strips for waterproofing and insulating from electricity are disposed between the side portions and the solar panels and between the fastening member and the solar panels.

Abstract: A combinatory board includes two boards disposed separately, a fixing element, and a mask cover. The outer surface of each board has a buffering material. Both sides of the fixing element have a fixing arm, respectively. The inner side of each fixing arm is formed with a joining section corresponding to the side of the boards, so that the fixing arms on both sides of the fixing element connect to the two boards. More than one vent hole is formed around the fixing element. Both sides of the mask cover are formed with a set of connecting arm, respectively. The inner side of the connecting arm has a connecting surface corresponding to the outer side of the fixing arm of the fixing element. The outer surface of the mask cover further has another buffering material.

Abstract: A ladder made by plastic material includes a first ladder unit which includes two side rails with a plurality of rungs integrally connected between the two side rails. A head step is integrally connected to two respective top ends of the two side rails. The first ladder unit includes an open first side and a closed second side. Each of the rungs includes a latitude rib and altitude ribs connected to an inner periphery of the open first side so as to define a plurality of chambers in the open first side of each rung, and each side rail includes two sidewalls and a plurality of latitude ribs connected between the two sidewalls so as to define chambers separated by the latitude ribs. Each rung has an anti-slip top surface. A second ladder unit can be pivotably connected to the first ladder unit at two respective head steps.

Abstract: A ski pole grip includes a stronger barrel engaged in a hand grip of cork material. A ski pole is engaged into the barrel. An engaging strap has a portion engaged into the barrel, and a shaft is engaged through the barrel and the portion of the engaging strap for securing the engaging strap to the barrel. The engaging strap may thus be secured to the barrel instead of being secured to the hand grip, such that the barrel may sustain the force from the engaging strap applied. The barrel may be engaged into the other hand grip when the cork hand grip has been damaged or worn out.