6results about How to "Smooth outer surface" patented technology

This invention provides a pre-rotating air inlet ring, a centrifugal fan, and a range hood, belonging to the field of kitchen appliance technology. The pre-rotating air inlet ring includes an outer fixed ring, an inner fixed ring, and multiple blades; the outer and inner fixed rings are concentric and coaxially arranged; multiple blades are distributed between the outer and inner fixed rings, with the inner end of each blade fixedly connected to the inner fixed ring and the outer end fixedly connected to the outer fixed ring; the extension direction of the blades forms an acute angle with the perpendicular line to the axis of the outer fixed ring, i.e., the pre-rotation angle; the annular area is divided into three fan-shaped areas with successively increasing pre-rotation angles (α1<α2<α3) and successively decreasing blade spacing angles (β1>β2>β3). This achieves differentiated and gradient guidance of the inlet airflow in the circumferential direction.

The utility model discloses a novel automobile door decoration strip which comprises a strip body, one end of the strip body is provided with a side edge fixedly connected with the strip body, the end, away from the side edge, of the strip body is fixedly connected with two connecting blocks, each connecting block is provided with a through hole in a penetrating mode, each through hole is provided with a locking screw, and the locking screws are fixedly connected with the strip body. The strip body and the side edge are fixedly connected with an L-shaped deformation piece together, the strip body and the side edge are fixedly connected with a fixing plate together, and the strip body and the side edge are made of the same material and are sequentially provided with an attractive layer, a protective layer, a buffer layer and a base layer from outside to inside. The L-shaped deformation piece, the fixing plate and the two connecting blocks are matched, so that the decoration strip and the automobile door can be fixed, and the connecting stability of the decoration strip and the automobile door is guaranteed; the decorative strip is provided with the attractive layer, the protective layer, the buffer layer and the base layer, so that the functions of wear resistance, attractiveness and protection can be considered, and the practicability is high.

The utility model provides a door and window structure and an assembly type steel structure transformer substation, and relates to the technical field of steel structure transformer substations, the door and window structure comprises a wall body assembly and a decoration edge assembly, the wall body assembly is provided with a through hole for installing a door and window; the decoration edge assembly comprises a decoration frame and a pressing frame, the decoration frame is matched with the hole, the decoration frame is arranged on the hole wall of the hole in a wrapping mode, a pressing part is arranged in the decoration frame, the pressing frame is located in the decoration frame, and the pressing frame is connected with the wall assembly so that the pressing part can be pressed on the wall assembly; the assembly type steel structure transformer substation comprises the door and window structure. According to the utility model, rainwater is effectively prevented from permeating from a crack of the wall body assembly at the position of the hole through the decoration edge assembly in a mode of covering the wall of the hole, the decoration edge assembly is pressed on the wall body assembly from the interior of the decoration frame through the pressing frame, and on the basis of ensuring firm installation, the outer surface of the decoration edge assembly is smooth and flat, water is convenient to drain, and the waterproof effect is remarkable.

This application relates to the field of mold manufacturing technology, and specifically discloses a demolding mold and demolding device, including a first movable block with a mounting cavity extending through it; a second movable block disposed in the mounting cavity, movable relative to the first movable block along a first direction, and at least partially extending along the penetrating direction of the mounting cavity, with an arc-shaped surface at one end of the second movable block facing away from the first movable block; a closing module disposed on the second movable block, movable relative to the closing module, with a closing arc-shaped groove on the side of the closing module facing away from the second movable block; and a driving component connected to the first movable block, capable of driving the first movable block to move along the first direction. Through the above method, this application embodiment can improve the smoothness of the demolded product.

The utility model discloses a suspension arm of a shifting machine and the shifting machine, belongs to the field of shifting machines, solves the problem that the manufacturing cost of the suspension arm is high due to the fact that the bending processing technology of the suspension arm is complex, and adopts the technical scheme that the suspension arm mainly comprises a rod-shaped main body and two suspension cable connecting parts, the rod-shaped main body is provided with two receiving ends which are far away from each other, and the suspension cable connecting parts are arranged on the rod-shaped main body; the two sling connecting parts are connected to the two receiving ends respectively, the sling connecting parts are of bent structures or form included angles with the rod-shaped main body, and the rod-shaped main body and the two sling connecting parts form a suspension arm of a split structure. According to the utility model, the suspension arm is of a split structure and is bent by the sling connecting part, so that the manufacturing process of the suspension arm can be simplified, and the manufacturing cost of the suspension arm is reduced.

The utility model discloses a cracking-resistant foundation which comprises a concrete foundation body, underground piling and reserved steel bars, a steel bar external member is arranged in the concrete foundation body, and the steel bar external member is formed by combining a steel bar main bone, a plurality of steel bar outer hoops arranged on the outer side of the steel bar main bone in a sleeving mode and reinforcing ribs used for reinforcing and supporting. And an anti-cracking steel wire mesh is sleeved on the outer side of the steel bar external member. According to the anti-cracking foundation, through the arrangement of the steel bar suite, the steel bar suite is formed by combining the steel bar main ribs, the steel bar outer hoops and the reinforcing ribs, compared with a traditional steel bar cage which is arranged in an empty mode, the strength of the steel bar cage can be improved, and therefore the overall stability of the foundation is improved; in addition, the anti-cracking steel wire mesh is arranged on the outer layer of the foundation, further extension of cracks can be hindered through the grid structure of the anti-cracking steel wire mesh, and the foundation can be effectively prevented from cracking to a certain degree.