15results about How to "Smooth outer surface" patented technology

The present invention provides an expandable catheter and an expandable catheter sheath, wherein the expandable catheter includes a body, a connecting portion and a reinforcing portion; the expandable catheter switches between a contracted state and an expanded state along the circumferential direction; the body has an opening along the circumferential direction, the opening is continuously arranged along the axial direction, and the opening and closing of the opening corresponds to the state conversion of the expandable catheter; the connecting portion is connected to both sides of the opening; the reinforcing portion is continuously arranged in the body along at least a part of the circumference of the body, and the reinforcing portion does not overlap in the circumferential direction of the body. With such a configuration, the radial reinforcement of the body by the circumferentially non-closed reinforcing portion can effectively enhance the anti-bending and anti-compression capabilities of the expandable catheter without affecting the expansion performance of the body, achieving compliant bending in all directions, reducing the risk of bending due to excessive blood vessel curvature, and improving surgical safety.

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 provides a projector top shell injection molding mould which comprises a fixed mould assembly and a movable mould assembly, the movable mould assembly is installed on the right side of the fixed mould assembly, the fixed mould assembly comprises a bottom plate, square iron, a movable mould plate, a core plate, a driving part, a top plate, an ejector pin and a hot runner part, and the movable mould plate is installed on the left side of the movable mould assembly. The square iron and the bottom plate are sequentially fixed to the left side of the movable mold plate, the core plate is fixed to the movable mold plate and corresponds to the position between the movable mold plate and the movable mold assembly, the driving components are fixed to the upper end and the lower end of the bottom plate, and the upper side and the lower side of the top plate are fixed to the power output ends of the two driving components respectively. The left end of the ejector pin is fixed to the top plate, the right end of the ejector pin sequentially penetrates through the movable mold plate and the core plate, the left end of the hot runner component is fixed to the bottom plate, the right end of the hot runner sequentially penetrates through the top plate, the movable mold plate and the core plate, and the projector top shell mold has the advantages that the outer surface of a projector top shell can be smooth and flat, and the attractiveness of the projector top shell is greatly improved.

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 invention belongs to the technical field of airplane structural strength tests, and relates to a bearing wall supporting box section. The device comprises a bottom plate (1), a vertical rib plate (2), a horizontal rib plate (3), a horizontal welding plate (4), a vertical welding plate (5) and a cover plate (6), wherein the vertical rib plates (2) and the horizontal rib plates (3) are welded in a staggered mode to form a multi-grid structure, in each grid, the horizontal welding plates (4) are welded to the horizontal rib plates (3), the vertical welding plates (5) are welded to the vertical rib plates (2), the multi-grid structure is welded to the bottom plate (1), and double grooves (7) are formed in one sides of the horizontal welding plates (4) and the vertical welding plates (5). The double grooves (7) protrude out of the end face of the multi-grid structure on the side, away from the bottom plate (1), of the multi-grid structure so as to be inserted into strip-shaped holes (61) reserved in the cover plate (6) in a matched mode to be welded to the cover plate (6). The bearing wall supporting box section is firm and reliable in welding, smooth in outer surface and convenient to manufacture.

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 relates to a steam generator which comprises an electric heating pipe and a water pipe arranged on the outer side of the electric heating pipe in a sleeved mode, a flow guide groove is formed in the outer side of the electric heating pipe, the flow guide groove is spirally distributed on the outer side wall of the electric heating pipe, and a water heating channel for water flow to pass through is formed between the flow guide groove and the water pipe. Comprising an electric heating pipe and a water pipe arranged on the outer side of the electric heating pipe in a sleeving mode, flow guide grooves are formed in the outer side of the electric heating pipe and spirally distributed in the outer side wall of the electric heating pipe, and a water heating channel for water flow to pass through is formed between the flow guide grooves and the water pipe.

The utility model relates to a berthing structure of an offshore wind turbine generator and the offshore wind turbine generator. The berthing structure comprises two columnar samson posts, two hollow energy absorption structures and a connecting piece. The two energy absorption structures are detachably connected to one side of the foundation platform, the two energy absorption structures are oppositely arranged at intervals in the horizontal direction, the two samson posts are arranged in the height direction of the foundation platform and detachably connected to the sides, away from the foundation platform, of the two energy absorption structures correspondingly, and the two ends of the connecting piece are connected with the two samson posts correspondingly; the opposite faces of the two samson posts are arc-shaped faces, the two arc-shaped faces are arranged in a protruding mode in the direction away from each other, and the face, away from the foundation platform, of each samson post is an abutting plane used for abutting against a fender on the side of a ship, so that the contact area between the samson posts and the ship to be moored is increased, more berthing impact force can be absorbed, and the ship berthing effect is improved. The bearing capacity is high, the energy absorption and shock absorption effects and the buffering effect on the ship are good, and the berthing stability of the ship is improved.

The utility model relates to a myopic lens suitable for assembling large-frame glasses. The technical problem that an existing lens is too heavy is solved. Comprising a lens body, the lens body is provided with a central area, the circumferential outer side of the lens body is provided with an annular thinning area located on the circumferential periphery of the central area, the circumferential inner side of the thinning area and the circumferential outer side of the central area are in smooth transition connection through a transition area, and the circumferential outer side of the thinning area extends to the circumferential outer edge of the lens body. The outer surfaces of the central area and the thinned area adopt spherical or aspheric convex surface structures, the inner surface of the central area adopts a spherical concave surface structure, and the inner surface of the thinned area adopts a spherical convex surface structure with progressive curvature. The lens has the advantages that the thickness of the periphery of the lens can be effectively reduced through the lens body with partition design, so that the weight of the lens is reduced, and the user experience is improved. The inner surfaces of the transition area and the thinning area are respectively processed by adopting parabola fitting ring cutting and progressive curvature forms, so that the thicknesses of the transition area and the thinning area of the lens can be effectively reduced.

The present invention discloses a ring-shaped bone drill comprising: a cylindrical drill rod and a ring drill rod, wherein one end of the ring drill rod is welded on a ring surface near one end of the cylindrical drill rod, the center line of the cylindrical drill rod and the center line of the ring drill rod are on the same straight line, a plurality of second cutting knives are arranged on the end surface of one end of the cylindrical drill rod, a slag removal groove is arranged on the outer circumference of the ring drill rod, the slag removal groove is a through groove leading to the inner diameter of the ring drill rod and the other end of the ring drill rod, one end of the slag removal groove in the length direction starts from the outer circumference of the ring drill rod between one end of the ring drill rod and one end of the cylindrical drill rod, and the other end passes through the ring end surface of the other end of the ring drill rod, the circumference of the slag removal groove occupies 1 / 5 to 1 / 4 of the entire circumference of the ring drill rod, a plurality of first cutting knives are arranged on the end surface of the other end of the ring drill rod, the wall thickness d of the ring drill rod is 1 / 7 to 1 / 6 of the diameter of the ring drill rod, and the present invention can drill out a required cylinder on the removed bone at one time.

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 an inner container and a cooking utensil, belongs to the field of cooking utensils, solves the problems that the inner container is easy to corrode and rust after an edge folding process, and simultaneously reduces the aesthetic property of the inner container, and adopts the technical scheme that the inner container comprises an inner container body, the inner container body is provided with a side wall and a turnup which is arranged at the top end of the side wall and is bent outwards, a neck part for transition is arranged between the side wall and the turnup, the turnup comprises a first turnup, the outer end of the first turnup is bent inwards from the lower side to form a second turnup, an edge sealing ring is arranged on the outer side of the neck part, and the edge sealing ring is provided with a groove for the end part of the second turnup to extend into. The inner container is mainly used for preventing the ends of the flanges from being directly exposed to the outside, the possibility that the ends of the flanges are corroded and rusted is reduced, and meanwhile the attractiveness of the inner container can be improved.

The utility model discloses a wine bottle high temperature decoration firing cooling device which comprises an operation table, a placing plate is fixedly connected to the inner wall of the operation table, a cooling liquid spraying mechanism is arranged above the placing plate, a positioning groove is formed in the top of the upper portion of the operation table, a long positioning rod is movably connected into the positioning groove in a clamped mode, and a fixing frame is fixedly connected to the upper portion of the long positioning rod. A movable cavity is formed in the fixing frame in the longitudinal direction in a penetrating mode, a lead screw is rotationally connected into the fixing frame, a movable fixing plate is slidably connected into the movable cavity, a toothed plate is slidably connected into the outer wall of the operation table, gears are engaged with one side, provided with a toothed block, above the toothed plate, and the gears are fixedly connected to the two ends of a long positioning rod. According to the cooling device for the high-temperature decoration firing of the wine bottle, the outer wall of the wine bottle can make full contact with cooling liquid, so that the outer surface of the wine bottle is harder, the wine bottle is prevented from being scratched due to friction in the transportation process, the surface of the wine bottle is smoother during decoration firing, and the decoration firing and a bottle body are connected more firmly.

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.