14results about How to "Reduce local deformation" patented technology

The utility model relates to a clamping type paper tray. It includes the support plate and a plurality of bearing legs, the support plate is constituted by the board core and the board core surface paper, the bottom surface of support plate is equipped with the positioning clamping slot, the leg core is the cuboid structure, the upper surface is pasted with the support plate bottom surface, still be connected with the rib plate between arbitrary two adjacent bearing legs, the rib plate is constituted by the rib plate core and the rib plate surface paper, the upside of rib plate core both ends still is provided with the positioning block, the positioning block is inserted with the positioning clamping slot and is fixed, the upper surface of leg core still is provided with the insertion slot with the end of rib plate and forms the insertion cooperation, the rib plate with the support plate bottom surface also is pasted with setting. The utility model connects the rib plate between the adjacent bearing legs, strengthens the compression strength of support plate through the rib plate, reduces the probability of local deformation of support plate, simplifies the assembly difficulty of component, improves the firmness after assembly.

This utility model discloses a prefabricated, non-removable floor slab, comprising a floor slab body, several steel bars integrally cast and fixed on the right outer wall of the floor slab body, and a column cavity provided on the left outer wall of the floor slab body. The column cavity and steel bars are used to allow the end-to-end connection of two adjacent floor slab bodies. This utility model, through the interlocking structure of column cavities, steel bars, ribs, and C-shaped inward grooves, and the column cavities and integrally cast steel bars on the left and right outer walls of the floor slab body, allows the end-to-end connection of two adjacent floor slab bodies to form a large-span rigid support and connection within the adjacent floor slab bodies.

The application belongs to the technical field of connectors, and particularly relates to a wire-to-board connector. The wire-to-board connector comprises a shell, a terminal assembly and a terminal locking assembly. The terminal assembly comprises a first terminal arranged in an upper accommodating cavity and a second terminal arranged in a lower accommodating cavity. The terminal locking assembly comprises a first terminal locking piece and a second terminal locking piece. The first terminal locking piece is used for limiting the movement of the first terminal in the front-rear direction. The second terminal locking piece is used for limiting the movement of the second terminal in the front-rear direction. The first terminal locking piece and / or the second terminal locking piece has first outer side faces and second outer side faces alternately arranged in the length direction on the side opposite to the shell. The first outer side faces and the second outer side faces are at different height positions. The application effectively improves the deformation problem after injection molding by alternately arranging the first outer side faces and the second outer side faces at different height positions on the first terminal locking piece and / or the second terminal locking piece, and reduces the assembly difficulty.

The invention belongs to the technical field of connectors, and particularly relates to a wire-to-board connector which comprises a shell, a terminal assembly and a terminal locking assembly. The terminal assembly comprises a first terminal arranged in the upper containing cavity and a second terminal arranged in the lower containing cavity, the terminal locking assembly comprises a first terminal locking piece and a second terminal locking piece, the first terminal locking piece is used for limiting the first terminal to move in the front-back direction, and the second terminal locking piece is used for limiting the second terminal to move in the front-back direction. One side of the first terminal locking piece and / or the second terminal locking piece back to the shell is provided with a first outer side surface and a second outer side surface which are alternately arranged along the length direction, and the first outer side surface and the second outer side surface are positioned at different height positions. According to the invention, the first outer side surfaces and the second outer side surfaces at different height positions are alternately arranged on the first terminal locking member and / or the second terminal locking member, so that the problem of deformation after injection molding is effectively improved, and the assembly difficulty is reduced.

The application discloses a compressor shell hot-joint machine and relates to the technical field of compressor manufacturing. The compressor shell hot-joint machine comprises a rack, a work station group and a grabbing group arranged on the rack, the grabbing group is arranged above the work station group, the work station group comprises, in sequence along a material conveying direction, a feeding station, an alignment station, a first heating station, a second heating station and a pressing station, the feeding station is connected with a shell conveying line, the pressing station is connected with a stator conveying line, the grabbing group comprises, in sequence along the material conveying direction, a feeding mechanical arm, a first transplanting mechanical arm, a second transplanting mechanical arm and a pressing special machine arm. The application can guarantee that the shell is uniformly heated, avoid local deformation of the shell, make the inner diameter of the shell fully expand, be favorable for smooth assembly of the shell and the stator, and avoid occurrence of situations such as collision of the shell and the stator, severe deformation of the shell, damage of the stator and the like.

The utility model discloses a pot mouth sealing structure and a pot cover, the pot mouth sealing structure is detachably connected to the pot cover, and the pot mouth sealing structure comprises a cover plate which is detachably connected to the pot cover; the sealing ring is arranged on the outer edge of the cover plate in a sleeving manner; the fixed knob can penetrate through the cover plate to be connected to the pot cover, and the fixed knob can rotate relative to the cover plate. The pot cover is provided with a pressure bearing plate, and a fixing column matched with the fixing rotary knob is arranged on the pressure bearing plate. Through the detachable structure (the cover plate, the sealing ring and the fixed knob), parts are convenient to clean or replace, and the user experience is improved; the rotation function of the fixed knob allows adjustment of sealing pressure to adapt to different pot opening states (such as thermal expansion and cold contraction), and excessive compression or failure of the sealing ring is avoided.

This invention discloses an optical imaging lens, comprising an outer cover, a lens barrel, and a plurality of lenses disposed within the lens barrel. The front end of the lens barrel includes an object-side opening, and the rear end includes an image-side opening. The inner diameter of the object-side opening is smaller than the inner diameter of the image-side opening. The outer cover is conical and disposed on the outer surface of the front end of the lens barrel. The outer cover includes an object-side opening and an image-side opening, the maximum outer diameter of which is smaller than the maximum outer diameter of the image-side opening. The length of the outer cover along the optical axis is greater than 40% of the length of the lens barrel along the optical axis.

The utility model relates to bionic butterfly device technical field especially, more particularly to a kind of bionic butterfly mechanical structure, including torso power structure and the left wing structure and right wing structure being set in its both sides, torso power structure and left wing structure, right wing structure form bionic butterfly, the utility model is formed by the setting position between two groups of swing arm angle, can reduce air resistance in flight process, wing forms the inclination angle swing process can more efficiently cut air, when swinging downward, inclination angle can increase the acting area of wing and air, similar to more strong lift generated by rowing, when swinging upward, adjusting inclination angle can reduce air resistance, compared with up and down horizontal swing more close to natural butterfly flight mode, overall improve bionic butterfly energy utilization rate, and adopt modularization installation, avoid the whole bionic body scrapping due to local problem, improve the overall service life of equipment, structure is small and exquisite, to reach bionic butterfly efficient flight purpose.

This utility model discloses a bending-resistant sound barrier column, including a base, a bending-resistant structure installed at the top of the base, and a protective structure installed at the top of the bending-resistant structure. The bending-resistant structure includes a pre-embedded steel plate set at the top of the base, with screw holes on the surface of the pre-embedded steel plate. Screws are installed inside the screw holes, with a main nut installed at the top of the screw and a secondary nut installed at the top of the main nut. A straight side plate is installed at the top of the pre-embedded steel plate, and a column is installed on one side of the straight side plate. Longitudinal reinforcing plates are installed on both sides inside the column. This utility model allows for precise adjustment of the preload by tightening the main nut and secondary nut using a torque method. The contact surfaces of the main nut and secondary nut generate additional frictional resistance, effectively resisting loosening between the internal and external threads. The straight side plate and the arc-shaped side plate are welded to both sides of the column to form a streamlined surface, reducing wind resistance or fluid resistance.

This application discloses an explosion-proof and noise-reducing valve shell structure for nuclear power plants, belonging to the field of valve technology. It mainly includes: a valve shell with water pipes connected to both ends, an installation pipe connected to the upper end of the valve shell, an explosion-proof assembly mounted on the valve shell, the explosion-proof assembly including two explosion-proof covers fitted onto the valve shell, each explosion-proof cover having a limiting hole at both ends, a main reinforcement assembly mounted on the explosion-proof covers, the main reinforcement assembly including reinforcing semi-rings mounted at both ends of the explosion-proof covers, the lower ends of the reinforcing semi-rings embedded in the limiting holes, and an auxiliary reinforcement assembly mounted on the installation pipe. This explosion-proof and noise-reducing valve shell structure for nuclear power plants, by using the two explosion-proof covers of the explosion-proof assembly to wrap around the outer wall of the valve shell and cover the lower part of the water pipes, can resist external impacts, reduce the occurrence of local deformation or cracking of the valve shell, and improve the explosion-proof threshold of the valve.

The utility model relates to the technical field of water conservancy facilities, and discloses a steel corrugated plate structure canal which comprises canal assemblies, a plurality of canal assemblies are sequentially connected in the length direction of the canal, each canal assembly comprises a corrugated steel plate, a longitudinal corrugated plate and an upper transverse edge, and the longitudinal corrugated plate is fixedly installed on the inner bottom wall of the corrugated steel plate. The outer side of the upper transverse edge is fixedly connected with a lower folding edge used for limiting downwards, the bottom wall, the side edges, the upper transverse edge and the lower folding edge of the water channel of the steel corrugated plate structure are integrally formed by forging and pressing the corrugated steel plates in the transverse corrugation direction, and no connecting piece is arranged. The integrally forged and formed structure avoids the problem that the structure is unstable due to looseness of the connecting piece, and the integrally formed structure can better maintain the overall integrity and stability when facing water flow impact, foundation settlement, temperature change and other complex external factors.

The utility model relates to the technical field of printing, papermaking and packaging machinery, in particular to an automatic sectional core-pulling paper tube rolling machine which comprises a rolling mechanism and a pulling mechanism. The rolling mechanism comprises a rolling base and a rolling mechanism, the mandrel is composed of a first drawing pipe and a second drawing pipe, the first drawing pipe and the second drawing pipe are mutually inserted together to form the outer surface of the mandrel, and the mandrel is rotationally arranged on the rolling base; the rolling power piece is arranged on one side of the core shaft and used for driving the core shaft to rotate so as to roll the paper into a barrel shape; the positioning head is arranged on the other side of the core shaft and is used for positioning and correcting the core shaft; the pulling mechanism comprises a pulling base and a pulling rod, one end of the sliding block is connected with the mandrel; the drawing power piece is arranged on one side of the drawing base, and the drawing power piece drives the sliding block to slide on the drawing base through linkage with the rotating lead screw; and the core shaft is pulled from the rolling base to the pulling base.

The utility model relates to the technical field of aluminum profiles, and discloses a bending-resistant aluminum profile. Comprising an aluminum profile body, the section of the aluminum profile body is rectangular, a rectangular hole is formed in the inner wall of the middle of the aluminum profile body, auxiliary bending-resistant assemblies are symmetrically arranged in the rectangular hole in the vertical direction, and each auxiliary bending-resistant assembly comprises horizontal reinforcing rib plates symmetrically and fixedly connected to the inner side wall of the rectangular hole; the width of the two horizontal reinforcing rib plates is the same as the width of the inner diameter of the rectangular hole, vertical reinforcing rib plates are fixedly connected between the surfaces of the two horizontal reinforcing rib plates and the inner side wall of the rectangular hole, and the multiple vertical reinforcing rib plates are arranged at intervals. The wall thickness of the aluminum profile body is small, so that the overall weight of the aluminum profile body is reduced, the horizontal reinforcing rib plates and the vertical reinforcing rib plates are matched, stress is even, and balance of light weight and high rigidity is achieved.

The utility model relates to the technical field of vehicles, in particular to a forklift driving wheel assembly and a forklift. The forklift driving wheel assembly comprises an installation support and a driving wheel, the installation support comprises an installation part and a supporting part arranged on one side of the installation part in a protruding mode, a transition slope surface structure is arranged between the installation part and the supporting part, and the thickness of the transition slope surface structure is gradually increased from top to bottom; the driving wheel is rotationally arranged on the side, connected with the transition slope surface structure, of the supporting part, the transition slope surface structure comprises a first slope surface and at least one second slope surface, and the first slope surface is connected with the second slope surface; circle centers corresponding to projections of an outer edge arc line of the first slope surface, an outer edge arc line of the second slope surface and a butt joint arc line of the first slope surface and the second slope surface in a plane perpendicular to the axis of the driving wheel are respectively arranged in a staggered manner. The arrangement of the transition slope surface structure can ensure that the mounting bracket is still stable after being used for a long time; the driving wheels are of a single-side supporting structure, and the requirements for light weight and compactness of the forklift can be met.