Abstract: The present invention discloses a ventilator mounting bracket, belonging to device installation brackets. Existing ventilator mounting brackets are smaller in adjustable distance range, difficult in installation and fixation and low in efficiency. The ventilator mounting bracket of the present invention is provided with two telescoping rod components which can extend and shorten and two folding rod components which are connected between the two telescoping rod components and can be folded and unfolded; the two folding rod components are unfolded to stretch the two telescoping rod components such that the two telescoping rod components and the two folding rod components form a mounting hole for mounting a ventilator; the two folding components are folded to withdraw the two telescoping rod components for packaging and transportation; moreover, the two ends of each one of the two telescoping rod components can be fixed at corresponding fixed parts by adjusting the length of the telescoping rod components.

Abstract: The present invention discloses a ventilator mounting bracket, belonging to device installation brackets. Existing ventilator mounting brackets are smaller in adjustable distance range, difficult in installation and fixation and low in efficiency. The ventilator mounting bracket of the present invention is provided with two telescoping rod components which can extend and shorten and two folding rod components which are connected between the two telescoping rod components and can be folded and unfolded; the two folding rod components are unfolded to stretch the two telescoping rod components such that the two telescoping rod components and the two folding rod components form a mounting hole for mounting a ventilator; the two folding components are folded to withdraw the two telescoping rod components for packaging and transportation; moreover, the two ends of each one of the two telescoping rod components can be fixed at corresponding fixed parts by adjusting the length of the telescoping rod components.

Abstract: The utility model relates to a ventilator with a functional module, belonging to the technical field of ventilator equipment. Customers cannot add or reduce functions in existing ventilator products, which lowers the flexibility of use, generates waste or fails to meet demands, and also increases production cost. In the utility model, a functional component is of an independent modular design: the functional component is independently placed in the module case to become a functional module such that the function can be customized according to demands. The utility model adopts the common micro-USB as a connecting terminal, and the ventilator body is provided with a plurality of micro-USB receptacles as connecting ports, realizing modular plug-and-pull and ensuring random plug-and-pull. Thus, the utility model is simple in connection operation, ensures plug-and-pull, is easy to identify, avoids mis-connection, and increases safety.

Abstract: A crank-type non-beam pumping unit, including a belt, a foundation, a crown sheave, a frame, a support rod, a belt pulley, a pin shaft, a crank, a transmission shaft, and a bracket. The bottom of the frame is disposed on the foundation, and the top of the frame is supported by the support rod. The top of the support rod is hinge connected to the frame, and the bottom of the support rod is hinge connected to the foundation. The bracket is disposed on the foundation, the transmission shaft is disposed on the bracket, and the crank is disposed on the transmission shaft. The crank rotates synchronously with the transmission shaft, and the belt pulley is disposed on one end of the crank via the pin shaft. One end of the belt bypasses the crown sheave, and is connected to a smooth sucker rod.

Abstract: An alternate grill has an upper pan and a lower pan, an upper heating member and a lower heating member for heating the two pans respectively. The lower heating member comprises at least a first heating unit and a second heating unit. In the position that the two pans are folded as a grill, the upper heating member and the first heating unit are electrified, while the second heating unit is power-off; in the position that the two pans are unfolded as two grilling pans, the second heating unit and the first heating unit are electrified, while the upper heating member is power-off. In unfolded status, the power in two heating surface can be switched to one heating surface, thus the heating time can be shorten, and the food can be cooked more delicious by high power. The alternation can be switched using a switch.

Abstract: A crank-type non-beam pumping unit, including a belt, a foundation, a crown sheave, a frame, a support rod, a belt pulley, a pin shaft, a crank, a transmission shaft, and a bracket. The bottom of the frame is disposed on the foundation, and the top of the frame is supported by the support rod. The top of the support rod is hinge connected to the frame, and the bottom of the support rod is hinge connected to the foundation. The bracket is disposed on the foundation, the transmission shaft is disposed on the bracket, and the crank is disposed on the transmission shaft. The crank rotates synchronously with the transmission shaft, and the belt pulley is disposed on one end of the crank via the pin shaft. One end of the belt bypasses the crown sheave, and is connected to a smooth sucker rod.

Abstract: A method for making large-size hollow ceramic plate (1, 2, 4) adopts raw materials of ordinary ceramics, mixing with industrial wastes or crude minerals abundant in period IV transition metal elements, squeezing a molded body by vacuum squeezing machine then producing at low cost a large-size hollow ceramic plate (1, 2, 4) with black or fuscous surface or whole body, with an area more than 0.5m2 of a single plate. A large-size hollow ceramic plate array (23) is composed of porous ceramic plates (1), through-hole ceramic plates (2) and accessories by gluing or thread-connecting or is composed of seal ceramic plates (4) by series connecting, which can be used in a solar water heater, a solar roof and wall, a generator with large-scale solar wind duct, a large-area solar collector, a far infrared radiation plate and a radiator for construction.