14 results about "Rib surface" patented technology

The utility model provides a front lingual plate forming machine. A feeding leveling device, a convex rib pressing and punching device, a notch punching device, a rolling forming device, a shearing device and a front and back folding head device are sequentially arranged in the conveying direction of plate rib pieces. The convex rib pressing and punching device comprises a first pressing die piece and a second pressing die piece which are arranged up and down; the first mold pressing piece moves close to or far away from the second mold pressing piece through the mold pressing driving piece; the first mold pressing piece comprises a first pressing cavity; the second mold pressing piece comprises a second pressing cavity, a pressing piece is movably arranged in the second pressing cavity, and the pressing piece moves from the second pressing cavity to the first pressing cavity through a pressing piece driving piece; the first pressing cavity comprises an inwards-concave cavity with the depth changing in a gradient mode, the height of the pressing piece changes in a gradient mode, a reinforcing rib of the front tongue plate is formed by pressing the pressing piece into the first cavity, and the rib face of the reinforcing rib inclines from the left side to the right side of the front tongue plate from high to low.

Disclosed herein are parts of an electrical connector that are suitable for direct earth burial, submergence in water, and capable of withstanding limited exposure to chemicals typically present on an airfield, including but not limited to, oil, de-icing fluids, and / or gasoline. In one embodiment, there is disclosed a plug that has one or more ribbed surfaces where the plug interfaces with a receptacle that may or may not have ribbed surfaces. In another embodiment, there is disclosed a receptacle that has one or more ribbed surfaces where the receptacle interfaces with a plug that may or may not have ribbed surfaces. In yet another embodiment, there is disclosed a cable shield boot housing that can be employed with either the plug or receptacle.

The invention relates to a multi-size micro rib surface drag reduction effect prediction method based on a modified turbulence model, and belongs to the technical field of fluid mechanics drag reduction. In order to solve the problem that only the size of a single micro rib can be set in the prior art, on the basis of keeping the calculation efficiency, the invention provides a drag reduction effect prediction method which meets the actual engineering requirements and considers the multi-size characteristics of the surface of the micro rib, and the method comprises the following steps: carrying out numerical simulation on a smooth surface target configuration, calculating a flow field in a specified state, and calculating the flow field in the specified state; extracting wall surface friction stress and wall surface friction speed; giving a micro-rib surface area range parameter and a sub-area division parameter, and determining a micro-rib surface range and a sub-area division condition on a target configuration surface; setting the geometric dimensions of the micro-ribs in the multi-dimension sub-regions; a modeling method based on a modified turbulence model is adopted, the local turbulence dissipation rate is calculated to serve as a new boundary condition of the surface of the micro-rib, flow field calculation is conducted again, and the resistance reduction effect is evaluated.

The invention provides a multifunctional wind tunnel test device for the surface of a turbulence drag reduction micro-rib, and belongs to the technical field of aviation engineering. The objective of the invention is to solve the problem that an existing test device is unfolded around a low-speed wind tunnel and is difficult to adapt to research requirements of small high-speed wind tunnel size and high flow speed in the aviation field. Optical windows are arranged on four walls of a test area of a wind tunnel test section hole body, a first flat plate is mounted on the wind tunnel test section hole body and connected with a third flat plate, and a second flat plate is mounted at the bottom of the first flat plate; the test area bottom plate is mounted in the first flat plate groove through the test area flexible interlayer, and the micro rib surface test sample piece is paved on the test area bottom plate; a PIV test particle release groove is formed in the first flat plate and is connected with a PIV test particle release pressurizing cabin box arranged at the corresponding position of the bottom of the second flat plate; and a turbulent flow array is arranged on the third flat plate. The problem that an existing test device is unfolded around a low-speed wind tunnel and is difficult to adapt to research requirements of small size and high flow speed of a high-speed wind tunnel in the aviation field is solved.

The present application relates to the technical field of machining, in particular to a through cover inner rib 90 degree bending combined tool and machining method, the tool includes a top post matched with the internal groove of the through cover, a positioning boss matched with the bottom groove of the through cover, the top post includes a bending post matched with the rib of the through cover, the positioning boss includes a positioning boss column matched with the rib of the through cover, and a groove matched with the rib is arranged between the positioning boss columns. According to the overall structure characteristics of the through cover, the top post and the positioning boss are designed, the bending post with the L-shaped bending groove after the round corner treatment is arranged on the top post, the positioning boss column, the first groove and the second groove cross-distributed in the cross shape are arranged on the positioning boss, the L-shaped bending groove after the round corner treatment makes the inner rib uniformly stressed as a whole, the inner rib surface will not appear indentation, the cross grooves in the horizontal and vertical directions ensure that the through cover can be arbitrarily selected during processing, and the processing efficiency is indirectly improved.

The invention relates to a shoulder joint surgery and rehabilitation device which solves the problems that an existing shoulder arthroscopy surgery traction device is prone to causing displacement of a humerus head, operation is affected, and a postoperative fixing brace is prone to causing ankylosis of joints. Comprising an inflatable air bag, a first U-shaped arc and a second U-shaped arc are arranged on the two sides, opposite in direction, of the inflatable air bag respectively, an armpit supporting part is arranged between the first U-shaped arc and the second U-shaped arc, and the inflatable air bag is further provided with a wearing fixing piece, an inflation inlet and a pressure release valve. During use, the air bag is inflated through the inflation inlet, the first U-shaped arc is attached to the surface of a rib beside the armpit, the wearable fixing piece is used for wearing and fixing, the second U-shaped arc is used for containing the inner side of the upper arm, the armpit supporting part is used for supporting the armpit, the air bag forms a lever fulcrum at the armpit, the humeral head is pried to be away from the shoulder glenoid fossa, and the joint gap is increased; in addition, when the shoulder arthroscope is used after an operation, the joint capsule is relaxed, fixation is relatively relaxed, the range of activity after the operation is obviously enlarged, and early rehabilitation of a patient is facilitated.

The utility model discloses a reinforced anti-sloughing plastic septic tank, which belongs to the technical field of septic tanks, and comprises a plastic septic tank, the surface of the plastic septic tank is movably connected with an end cover, the bottom end of the plastic septic tank is internally provided with a drain pipe, and the surface of the plastic septic tank is fixedly connected with reinforcing ribs; connecting blocks are fixedly connected to the surfaces of the reinforcing ribs, connecting grooves are formed in the connecting blocks, the connecting blocks are symmetrically distributed relative to the centers of the reinforcing ribs, and meanwhile moving grooves are formed in the reinforcing ribs. The surface of the end cover is fixedly connected with a fixing block, and the interior of the fixing block is fixedly connected with a fixing column. The inner wall of the plastic septic tank is fixedly connected with a protective lining. According to the reinforced anti-sloughing plastic septic tank provided by the invention, by arranging the baffle plate and the damper, the stress of the septic tank is more uniform, meanwhile, the protection on the device is improved, the device can stably operate, the service life of the septic tank is prolonged, and the frequency and the cost of replacing equipment are reduced.

The application provides a high-load diffuser cascade structure with a local non-smooth drag-reducing rib surface and a design method thereof. The diffuser cascade structure is a planar cascade structure or a ring cascade structure, and the planar cascade structure and the ring cascade structure are provided with a non-smooth drag-reducing rib surface. The application can control various resistances in the cascade channel, thereby reducing separation and vortex loss caused by increased resistance, mixing loss of the main flow and the backflow, and friction loss of the airflow and the blade wall, and further improving the performance of the compressor.

The application discloses an aircraft fuselage micro-rib surface paving mode and a drag reduction performance calculation method thereof, and belongs to the technical field of aeronautical engineering. The application realizes efficient formulation of the aircraft fuselage micro-rib surface paving mode by only associating the micro-rib surface paving division with the fuselage surface and only selecting the small-rib parameters of the single-piece micro-rib surface in association with the fuselage surface flow field, and appropriately considering the influence of the fuselage surface flow field on the position and size of the single-piece micro-rib surface division. Meanwhile, in combination with the characteristics of continuous change of the fuselage surface flow field and the micro-rib surface drag reduction performance modeling calculation method, the small-rib parameters of the center point of the single-piece micro-rib surface are taken as the small-rib parameters of the whole micro-rib surface, the micro-rib surface area characteristics are calculated simply, and efficient evaluation of the drag reduction performance of different micro-rib surface paving modes is realized.

The utility model discloses a clothes care device inner cylinder and a clothes care device, comprising: a lifting rib installed on the inner wall of the inner cylinder, the surface of the lifting rib being provided with an opening; the at least one clothes clamping device is mounted in the lifting rib; the clothes clamping device comprises a clamping jaw assembly; the movement mechanism is installed in the lifting rib and used for driving the clamping jaw assembly to move in the direction of the inner cylinder rotating shaft so as to change the position of the clamping jaw assembly in the lifting rib; the retracting and releasing mechanism is mounted between the movement mechanism and the clamping jaw assembly and is used for releasing or retracting the clamping jaw assembly so as to realize the ascending or descending action of the clamping jaw assembly; when the clamping jaw assembly moves downwards to the clamping position, clothes at the bottom of the inner barrel are grabbed. According to the utility model, hanging and airing in the cylinder can be realized, and the arrangement of the movement mechanism and the retraction mechanism is beneficial to accurately positioning the grabbing position, so that the grabbing accuracy of the clamping jaw assembly is improved, and the clothes grabbing and hanging efficiency is improved.

The implant assembly can be secured to a human rib and can include an implant, an anchor, and a bracket. The implant can include an elongated body engageable with a surface of the rib. The elongated body can define a first bore and a second bore, each extending at least partially through the body. The anchor can be at least partially insertable into a hole formed in the rib and at least partially insertable into the first bore. The bracket can be engaged with the implant and configured to pass at least a portion of the anchor, which can secure the bracket and suture anchor to the implant and the rib.

The invention discloses live pig carcass multi-part synchronous flexible humanoid cutting equipment in the technical field of meat processing equipment. The live pig carcass multi-part synchronous flexible humanoid cutting equipment comprises a processing table, a mounting plate arranged on the surface of the processing table through a driving part, and a cutting knife arranged below the mounting plate; a moving frame is arranged on the side, close to the machining table, of the mounting plate through a cut-in mechanism, the cut-in mechanism is used for guiding the moving frame to move in an arc-shaped track, and the slitting knife is arranged below the moving frame through a flexible guide structure; in the rib row processing process, the follow-up mechanism and the flexible guide structure are utilized, and the follow-up mechanism can drive the flexible guide structure to generate corresponding deformation through the linkage assembly according to the radian change of the surface of the rib row, so that the motion trail of the slitting knife can automatically fit the unique radian of the rib row; therefore, the cutting state of the slitting knife can be regulated and controlled in real time, and it is guaranteed that the slitting knife can be kept consistent with the radian change of the rib row when cutting the rib row.

This invention discloses a parametric layered formwork design method for ribbed cooling towers in thermal power plants based on Dynamo, belonging to the field of building construction technology. This invention aims to solve the technical problems of low efficiency and difficulty in guaranteeing accuracy in existing formwork design for ribbed cooling towers. The method includes: acquiring the geometric, rib, and layer parameters of the cooling tower; automatically generating an accurate 3D solid model of the ribbed cooling tower in a BIM software environment; horizontally cutting the model according to the construction layer height to obtain multiple layered entities; for any layered entity, generating an integrated outer formwork and rib formwork that perfectly fits its outer surface and rib surface; finally, dividing the entire ring formwork into standardized formwork units along the circumference, and assigning position, size, and other attribute information to each unit to generate formwork data that can directly guide construction. This achieves full-process automation and high precision in formwork design for complex curved surface structures, significantly improving the collaborative efficiency of design and construction.