49results about How to "Avoid pressure deformation" patented technology

The invention relates to the field of scaffold fasteners and particularly relates to a scaffold steel tube spatial assembling fastener and a sliding sleeve thereof. The fastener comprises the sliding sleeve, two sets of pressing assemblies are arranged on the outer sides of the sliding sleeve, each pressing assembly comprises hinge bases oppositely distributed on the sliding sleeve along the axial direction of the sliding sleeve, the hinge axes of the two hinge bases are parallel and spatially and perpendicularly crossed with a central line of the sliding sleeve, a containing opening for containing scaffold steel tubes is enclosed between the upper portions of the two hinge bases, an expansion block installation groove is enclosed between the lower portions of the two hinge bases, an opening is arranged between the two hinge bases on the wall of the sliding sleeve, a pressing slider is assembled in the opening, an expansion slider for being firmly wedged between the scaffold steel tubes and the pressing slider in the containing opening is assembled in the expansion block installation groove, and the hinge bases of the two sets of pressing assemblies are spatially and perpendicularly crossed. The scaffold steel tube spatial assembling fastener has the advantages of being convenient to operate, reliable to fix and not apt to lose and can simultaneously fix three spatially crossed scaffold steel tubes.

The invention discloses an efficient rim rotation type automatic positioning device. The efficient rim rotation type automatic positioning device comprises a rack, a positioning mechanism and an adjusting mechanism. The positioning mechanism and the adjusting mechanism are arranged on the rack, and the adjusting mechanism is further provided with a laser range finder. The efficient rim rotation type automatic positioning device is reasonable in structure, reliable in performance, capable of being used for detecting various rims in different specifications, preventing materials from being mixed and detecting whether materials exist, and high in automation degree, and efficiency is greatly improved.

The invention relates to the field of scaffolds for buildings, and particularly to a scaffold cross-bar used for supporting a girder formwork. The scaffold cross-bar comprises a transverse steel pipe which is provided with at least a pair of tightly supported fasteners; each tightly supported fastener comprises a top sleeve sleeved on the transverse steel pipe in a sliding manner; each top sleeve is provided with a tight support part used for tightly supporting a side vertical surface formwork of a girder; in addition, a wedge block which is fixed on the transverse steel pipe in the expansion manner is also inserted in each top sleeve. When the scaffold cross-bar is used, the transverse steel pipe can be arranged below the girder, so that the two corresponding tightly supported fasteners are respectively located at two sides of the girder, and the positions of the top sleeves are adjusted by enabling the top sleeves to slide on the transverse steel pipe; and when the tight support part of each top sleeve tightly presses the side vertical surface formwork of the girder, each top sleeve is fixed in the expansion manner by knocking each wedge block, so that the tight support of the side vertical surface formwork of the girder is realized. After the scaffold cross-bar is adopted, step-to-step fasteners adopted in the prior art can be abandoned completely, and efficiency of building construction can be improved greatly.

The invention discloses an air conditioner, comprising a panel and a panel body. The connection side of the panel is hinged on the panel body. The middle position, which is close to the connection side, of the panel is also provided with at least a third loose blade. The two sides of the third loose blade are at least provided with a blocking leg. The middle position, which is close to the connection side, of the panel body is provided with a limit groove. The opening of the limit groove inclines upwards and faces the connection side. When the panel is buckled on the panel body, the blocking leg is sleeved in the opening of the limit groove. The blocking leg arranged on the third loose blade plays a role in supporting and pulling down the limit groove, can prevent the panel from being pressed and deformed and prevent arch from emerging in the middle of the panel, and also dismounts the panel easily.

The invention relates to the field of scaffolds for buildings, and particularly relates to a scaffold diagonal bar. The scaffold diagonal bar comprises a diagonal steel pipe and a fastener assembled on the diagonal steel pipe, wherein the fastener comprises a sliding sleeve which is sleeved on the diagonal steel pipe in a sliding manner; two hinged supports are oppositely arranged on the outer side of the sliding sleeve; the hinged axles of the hinged supports are parallel to each other and in spatial crossing with the center line of the sliding sleeve; a set included angle of 30-60 degrees is formed between the center line of the sliding sleeve and the hinged axis of each hinged support; the upper parts of the two hinged supports define a containing opening for containing a basic steel pipe of a scaffold, and the lower parts of the hinged supports define an expanding block mounting groove; the wall of the sliding sleeve is provided with an opening through inside and outside between the two hinged supports; the expanding block mounting groove is internally provided with an expanding slider wedged between the diagonal steel pipe and the basic steel pipe in the containing opening; and the diagonal steel pipe is provided with corresponding limit structures at both ends of the sliding sleeve. The scaffold diagonal bar is convenient to use and high in safety.

The invention provides an assembling method for an aluminum frame door leaf. The assembling method includes the following steps that according to door sheet gluing, a front door sheet and a rear door sheet are glued together to form a door leaf semi-finished product, and closure sheets are installed on the front door sheet and the rear door sheet; according to aluminum frame assembling, an aluminum frame adheres to the closure sheets of the door leaf semi-finished product through adhesive, and therefore the aluminum frame door leaf is formed. The assembling method further includes the step of spraying treatment on the door leaf semi-finished product and the aluminum frame, wherein the step is executed between the step of door sheet gluing and the step of aluminum frame assembling. The assembling method has the advantages of being simple, easy to implement by one person and high in firmness, lowering the labor intensity, improving the production efficiency, saving labor, lowering the rejection rate of the product, improving the appearance attractiveness of the product and the like.

The invention relates to the field of scaffold fasteners, in particular to a scaffold diagonal-bracing fastener and a sliding sleeve thereof. The fastener comprises the sliding sleeve which can be sleeved on a scaffold steel tube in a sliding manner, wherein two hinged supports, which are assembled with pressure covers and hasps in a hinged way respectively, are oppositely arranged at the outer side of the sliding sleeve; the hinged axes of the hinged supports are parallel to each other and spatially crossed with the central line of the sliding sleeve; a set included angle of 30 degrees to 60 degrees is formed between the central line of the sliding sleeve and each of the hinged axes of the two hinged supports; a containing port for containing the scaffold steel tube is enclosed by the upper parts of the two hinged supports; an expansion block installation slot is enclosed by the lower parts of the two hinged supports; an opening is formed in the sleeve wall of the sliding sleeve at a position between the two hinged supports; a pressing slide block for pressing the scaffold steel tube in the sliding sleeve is assembled in the opening; and an expanding slide block which is wedged between the scaffold steel tube in the containing port and the pressing slide block is assembled in the expansion block installation slot. The scaffold diagonal-bracing fastener simultaneously has the characteristics of being convenient to operate, reliable in fixation and unlikely to lose.

The invention discloses a belt wheel type pipe conveying structure. The belt wheel type pipe conveying structure comprises a lower installation block, an upper installation block, an installation column, a first transmission wheel assembly, a motor driving wheel, a second transmission wheel assembly, a pipe pressing driving wheel, a casing pipe input guide pin, a casing pipe output guide pin, a first transmission wheel, a second transmission wheel and transmission belts. By means of the overall structural design, enough frictional force still can be provided for smoothly conveying and pushingout casing pipes on the premise of keeping the shape of the casing pipes and preventing the casing pipes from extrusion deformation, and besides, the belt wheel type pipe conveying structure is suitable for conveying various casing pipes with different diameters and different specifications while achieving automatic pipe conveying; the whole pipe conveying process does not require workers to participate in operation, and the belt wheel type pipe conveying structure has the advantages that the pipe conveying efficiency is high, the pipe conveying effect is good, the pipe conveying process is smooth, and it can be ensured that the casing pipes are prevented from extrusion deformation; and moreover, the belt wheel type pipe conveying structure solves the problems of low pipe conveying efficiency and high labor intensity of workers of a traditional manual pipe conveying mode, and also solves the problem that the casing pipes are often flattened in a present pipe conveying mechanism.

The invention provides a manufacturing method for integrally forming a carbon fiber composite material pump body and an impeller for a pump. The manufacturing method comprises the following steps that1, the carbon fiber material with a proper specification is prepared; 2, MgO, a curing agent, a low-shrinkage agent and a wetting dispersant are added into an epoxy vinyl resin raw material, and themixture is stirred for 2-4 h at the normal temperature and fully mixed; 3, the carbon fiber material is mixed with the mixture; 4, the temperature of a molding press is raised to a preset temperature,and a mold is preheated; 5, a mixing material is put into a preheated pump body mould pressing mold or ab impeller mould pressing mold, and mold closing is performed; and 6, the mixing material is pressurized and heated to a preset temperature, the temperature is kept, and after cooling, demolding is performed. According to the method, the complexity of the forming process of the carbon fiber composite material pump body and the impeller for the pump is greatly reduced, integral forming is achieved, the problems of gluing and bolt fastening connection are solved, the structural strength of the pump body and the impeller is enhanced, the problems of low structural strength, pressure-bearing deformation, cracking, leakage and the like are solved, the manufacturing process is simple, the cost is low, and the application prospect is wide.

The invention discloses a glaze polishing grinding tool for processing ceramic tiles. The glaze polishing grinding tool comprises a first support, a transmission shaft, a transmission belt and a polishing portion. The polishing portion comprises a round support plate. A motor is connected to the center of the top of the support plate. A rotating disc is connected to a shaft of the motor. A round first grinding head is fixedly connected to the middle of the lower portion of the rotating disc. A ringlike second grinding head is fixedly connected to the outer side of the lower portion of the rotating disc. A ringlike annular tooth portion is connected to the outer side of the rotating disc. Multiple bearing seats are connected to the support plate, wherein the bearing seats are arranged in the annular form. A rotating shaft is movably arranged on each bearing seat in an inserted manner. A first gear is connected to each rotating shaft. The first gears are engaged with the annular tooth portion. A round third grinding head is fixedly connected to the bottom of each rotating shaft. A chain is arranged at the outer sides of the multiple first gears in a sleeving manner. Multiple connecting blocks are connected to the outer side of the chain, wherein the connecting blocks are uniformly arranged. A brush is connected to the lower portion of each connecting block. By means of the glazepolishing grinding tool, defects of the prior art can be overcome, and the problem that surface defects of the ceramic tiles are caused due to the singular grinding action is avoided.