2688results about How to "Guaranteed structural strength" patented technology

The invention provides an inner pot and an electric pressure cooker. The inner pot comprises a body (1) and a lifting handle (2) arranged on the periphery of the body (1). An installation groove (3) is formed between the lifting handle (2) and the periphery of the body (1). The inner pot helps solve the problem in the prior art that that poor strength of the structure of an outer pot is caused due to a gap in the outer pot for the lifting handle.

The invention relates to a light-gas gun pneumatic separation sabot, and aims at solving the problems that for an existing sabot, an additional device is needed to conduct separation on the sabot, the effect is not ideal and the cost is increased. The light-gas gun pneumatic separation sabot is composed of an upper supporting disc, a lower supporting disc and a base plate; the upper supporting disc and the lower supporting disc are two corresponding semi-cylinders. An upper half bullet hole is formed in the center of the upper supporting disc, and the middle of the upper half bullet hole is hollowed out to be of a hollow structure; the lower supporting disc and the base plate are formed to be a whole, a lower half bullet hole is formed in the center of the lower supporting disc, and the middle of the lower half bullet hole is hollowed out to be of the hollow structure; two seal grooves are carved on the base plate. The upper half bullet hole of the upper supporting disc corresponds to the lower half bullet hole of the lower supporting disc, a semicircle notch of the upper supporting disc is engaged with a boss of the lower supporting disc, under the condition of not adding a separating device, automatic separation of the sabot and a bullet is achieved through air resistance in a target chamber, and the light-gas gun pneumatic separation sabot has the advantages of improving the external ballistic property of the bullet and reducing the firing cost.

The invention discloses a high-precision vertical type machining center comprising a pedestal, an upright column, a worktable, a spindle case, a PLC controller, a machining spindle component, a Y-axis movement mechanism, an X-axis movement mechanism and a Z-axis movement mechanism. The worktable comprises a saddle, a worktable plate, a telescopic protecting cover, and a sliding rail extension bracket. The saddle is installed on the Y-axis movement mechanism. The X-axis movement mechanism comprises a linear sliding rail and a sliding block. One end of the telescopic protecting cover is connected with the worktable plate; the other end is connected with the sliding rail extension bracket. The high-precision vertical type machining center is reasonable in structural design. An automatic control is conducted by the PLC controller, and the purpose of the automatic machining can be achieved by clamping once, with fast machining speed, high precision and good working stability. Moreover, by reasonably designing the worktable, the rigidity and the stability of the entire structure are increased, thereby effectively reducing the vibration. With the high machining precision, the stable running, and the good protecting effect, the cutting chips or other foreign materials are effectively prevented from dropping onto the guide rail, thus the service life is long.

The invention discloses a road drainage system comprising a road surface drainage part and a road side drainage part, wherein the road surface drainage part is orderly provided with a base layer, a waterproof layer and a non-watertight layer from bottom to top; the upper part of the waterproof layer is provided with a road surface drainage groove; the road side drainage part comprises non-watertight curbstones and road side drainage grooves; the non-watertight curbstones are arranged on both sides of a road and adjacent to the road surface drainage part; the road side drainage grooves are arranged under the non-watertight curbstones; the non-watertight curbstone comprises a non-watertight surface layer and a non-watertight strengthening layer; the non-watertight surface layer contains non-watertight material; the non-watertight strengthening layer is adjacent to the inner surface of the non-watertight surface layer and a cavity is arranged in the non-watertight strengthening layer. The road drainage system is provided with the road surface drainage part and the road side drainage part; the road side drainage part is provided with a guide cavity; and the rain water is drained in time after quickly penetrating through the thinner non-watertight surface layer, thereby ensuring the normal traffic of vehicles and the passerby traffic.

The invention provides an airplane with a combined-wing layout of a flying wing and forward-swept wings. The airplane is characterized in that thin-wing type vertical columns A and B are additionally arranged at the 70% wingspan positions of the outer sides of two side wings of a flying-wing airplane with backward-swept wings, a thin-wing type vertical column C is additionally arranged at the tail part of the flying-wing airplane, and horizontal forward-swept wings are additionally arranged at the top ends of the three thin-wing type vertical columns A, B and C so as to form the combined-wing layout of the flying wing and the forward-swept wings; elevators are arranged on the horizontal forward-swept wings and a rudder is arranged on the vertical column C; a duct type air inlet channel is adopted on the upper wing surface of the flying wing, and cracking type drag rudders are distributed at the thin-wing type vertical columns A and B. The airplane provided by the invention has the advantages that under the condition that the structure strength is effectively guaranteed, the effective aspect ratio of the wings is increased, the induced drag is reduced, the lift-drag characteristics of the airplane are improved, the stealth performance of the airplane is improved, direct-force control of the airplane in the vertical direction is realized and the detecting accuracy under the maneuvering condition is improved.

The invention provides a backlight module with a narrow frame of a liquid crystal display device. The backlight module comprises the frame, a back plate, a connection piece and a rubber frame which is arranged on the back plate; the frame comprises a bottom plate opposite to a front panel; the front panel of the frame concaves inwards to form a first tapping hole with an inner thread; the bottom plate of the back plate is provided with a hole part corresponding to the tapping hole; the rubber frame is provided with a through hole corresponding to the hole part; the connection part passes through the through hole; and both ends are respectively in a fit connection with the first tapping hole on the front panel of the frame and the hole part on the bottom plate of the back plate so that the frame is locked with the back plate. According to the backlight module provided by the invention, space positions of the rubber frame and the back plate are saved; meanwhile, material is avoided be cut by the rubber frame in a large area to avoid convex hulls on the frame and the back plate, therefore, the structure intensity of the rubber frame is ensured, and the frame of the backlight module is easy to narrow.

The invention is suitable for the technical field of display screen structures, and discloses a frame for an LED display screen. The frame comprises a hollow body formed by combining a plurality of lateral plates connected end to end, connecting parts are arranged at the portions where the lateral plates are connected end to end, reinforcing ribs connected with the lateral plates are arranged in a hollow part of the body, each lateral plate is connected with the adjacent lateral plate of the frame through a connecting assembly, a handle part and a foot stepping part are arranged on each lateral plate, each handle part is used for hand holding and climbing force exertion during maintenance, and each foot stepping part is used for foot stepping force exertion during maintenance. The frame for the LED display screen is light in quality, various and attractive in appearance, high in production efficiency, low in manufacturing cost and high in structure intensity, direct climbing can be achieved during maintenance, and the maintenance convenience is improved.

The invention discloses a floating fan base with flare type tension legs, a marine wind-driven generator and a construction method. The floating fan base comprises a top supporting platform, a bottom supporting structure, at least three hollow stand columns and a ballast regulating system, wherein the top supporting platform is used for supporting a pylon, blades and a wind-driven generator set; the bottom supporting structure is connected with multiple tension legs; the top supporting platform is connected with the bottom supporting structure via the hollow stand columns, the hollow stand columns are arranged around the vertical center line of the floating fan base, and each stand column inclines outwards from a lower end to an upper end relative to the vertical center line of the floating fan base; the ballast regulating system is arranged in the stand columns and/or the bottom supporting structure. The marine wind-driven generator of the base with the structure has excellent movement performance, integral wet towing can be performed, and the floating fan base and the marine wind-driven generator are convenient to manufacture, assemble and mount.

The invention relates to an ultra high speed test CRH train bogie and belongs to the field of railway vehicle bogie devices with elastic deformation buffering capacity, the problem of welding stress centralization is solved by a horizontal and longitudinal beam integrated type tray frame, and a wing-shaped elastic support arm of an elastic frame can have a damping effect by own elastic deformation. According to the novel bogie, by the aid of matching usage of the elastic frame and motor suspension devices with vibration absorption functions, high cut-down and inhibition effects can be realized on motor vibration, and accordingly, the vibration frequency control difficulty of a power system is reduced greatly and surplus vibration damping buffering components can be effectively cut down, so that redundant components can be simplified greatly, the structure dimension is shortened, and the weight is reduced. Master pin backward titling structures of traction wheel sets can swing consistently in S shapes. The ultra high speed test CRH train bogie can overcome inherent mutual contradiction of dual requirements on two aspects of lightweight design and speed lifting of a 500km/h ultra high speed train and is a novel breakthrough in the field of localization ultra high speed bogies.

The invention discloses a terminal, a terminal shell and a method for manufacturing the shell. The shell comprises a first metal layer and a second metal layer, wherein the material of the second metal layer is different from that of the first metal layer, and the second metal layer is stacked with the first metal layer. According to the terminal shell provided by the embodiment of the invention, the terminal shell is constructed by stacking the first metal layer and the second metal layer of the different materials, and the overall performance of the terminal shell can be improved by using the characteristics of different metal materials, so that the shell has higher structural strength and aesthetic appearance, and besides, the weight of the shell can be effectively lightened, and the light and thin design of the terminal can be realized conveniently. Moreover, the terminal shell has the advantages of being simple in structure, convenient in processing, low in production cost, and the market competitiveness of terminal products is improved.

The invention discloses a battery pack shell for a new energy vehicle and a manufacturing method of the battery pack shell for the technical field of battery packs. The battery pack shell comprises abottom plate, a side frame and an upper cover, wherein a stamped and formed metal plate is adopted by the bottom plate; an extruded metal section is adopted by the side frame; the metal section is bent and then the end part is docked to form the side frame with a closed loop structure; a bottom plate connection end is formed at the bottom of the side frame; an upper cover connection end is formedat the top of the side frame; the bottom plate connection end of the side frame is connected with the bottom plate in a welding manner and a battery pack accommodating cavity is formed in the side frame; and the upper cover is matched with the upper cover connection end to cover the battery pack accommodating cavity. A whole plate stamping form is adopted by the bottom plate of the battery pack shell, so that the connection reliability of the bottom plate and a vehicle body floor is ensured while the stiffness is improved; and the section is short in mold making period and low in price and thestructure is large in design space, so that the side frame is formed by bending the section and carrying out tailor-welding, the side frame is connected with the bottom plate in a welding manner andthe welding strength and the strength reliability of the battery pack can be effectively ensured.

The invention relates to a split mounting type battery box module fixing frame. The split mounting type battery box module fixing frame comprises a longitudinal beam keel, multiple cross beam keels and multiple boundary beams, wherein the multiple cross beam keels are arranged at intervals in parallel, and the longitudinal beam keel is perpendicularly arranged in the middle of the multiple cross beam keels and clamped on the multiple cross beam keels; the ends of every two adjacent cross beam keels are connected through the boundary beams, first side plates are horizontally arranged on the two sides of the bottom of each cross beam keel respectively, second side plates are horizontally arranged on the two sides of the bottom of the longitudinal beam keel respectively, and a third side plate is horizontally arranged on the bottom of each boundary beam; limiting notches are formed in the first side plates corresponding to the second side plates and the third side plates, and the two ends of each second side plate and the two ends of each third side plate stretch into the corresponding limiting notches respectively and abut against the corresponding first side plates; the first side plates, the second side plates and the third side plates are all fixed to the bottom wall of an electric box, and fold fins used for being connected with the side wall of the electric box are arranged at the two ends of each cross beam keel respectively. The split mounting type battery box module fixing frame has the advantages that the whole module fixing frame is convenient to assemble and disassemble, high in structural strength and high in stability.

The invention discloses a medical device case machining process. According to the technical scheme, the medical device case machining process comprises the following steps of selecting materials according to preset conditions; performing model analysis, including decomposing an input equipment model in characteristics, curved surfaces and planar surfaces; performing case blocked machining including dividing a case into a plurality of independent small pieces according to the external dimensions of equipment, engraving and milling precise parts and curved parts through a modern science and technology CNC (computerized numerical control) machining center, and engraving flat parts into required sizes through a flat engraving machine; performing profiled bonding, including punching bone inserting holes in neighboring independent small pieces, forming glue injecting holes in the bone inserting holes, inserting a bone rod into the bone inserting holes of two independent small pieces to be jointed, and assembling the jointed two independent small pieces through chemical glue; performing surface treatment, including grinding and then polishing the surface of a bonded case. The structural strength of every two independent small pieces is enhanced through the bone rod; the bone rod is inserted inside the independent small pieces, so that space occupation of the outside space of the independent small pieces by the bond rod can be reduced, and the case assembling difficulty can be lowered.

The invention discloses a continuous carbon fiber sucker rod with a wear-resistant protective layer and a preparation method thereof. The continuous carbon fiber sucker rod comprises a sucker rod body, a glass fiber layer coated on the surface of the sucker rod body, and a wear-resistant layer coated at the outer side of the glass fiber layer, wherein the wear-resistant layer comprises a fiber-reinforced fabric and a thermoplastic resin layer coated on the surface of the fiber-reinforced fabric, and hard wear-resistant particles are uniformly mixed in the thermoplastic resin layer, so that the hard wear-resistant particles are uniformly distributed on the surface of the wear-resistant layer. The hard wear-resistant particles are uniformly distributed on the surface of the sucker rod, and by virtue of the high hardness and high wear resistance of inorganic hard particles and the ball form formed with the mesh fabric structure, the eccentric wear resistance of the wear-resistant layer on the surface of the composite sucker rod is strengthened. Meanwhile, the part where the hard wear-resistant particles are in contact with the interface of the sucker rod body plays a role of interface mechanical meshing, thereby preventing the wear-resistant protective layer from slipping and layering from the surface of the sucker rod.

The embodiment of the invention discloses a mobile phone metal frame structure and a manufacturing method thereof. Through the adoption of the mobile phone metal frame structure and the manufacturing method, plenty of CNC processing time of a mobile phone metal frame can be reduced, and the batch production of the product is facilitated. The mobile phone metal frame structure comprises a metal frame body and a metal component, wherein a connecting part is arranged on the metal frame body; the metal component is embedded into the metal frame body through the connecting part. Therefore, on the basis of guaranteeing the structural strength, plenty of CNC processing time is greatly reduced.

The invention relates to an electric vehicle, a battery box body thereof, and a battery box. A cooling structure is arranged on a bottom plate assembly of the battery box and comprises two or more layers of hollow channels which are formed at intervals in vertical direction, the upper hollow channel forms a cooling channel used for allowing cooling liquid to circulate, and the lower hollow channelis filled with a thermal insulation material; and in the operating process of the battery box, the cooling liquid in the cooling channel can cool a battery module in the battery box. Meanwhile, the lower hollow channel is filled with the thermal insulation material, thus a thermal insulation layer is formed, heat in the external environment is prevented from being transmitted into the battery box, through the thermal insulation material, the heat in the external environment is prevented from influencing the cooling liquid, and the problem that properties of the battery box are influenced accordingly is solved; and after the bottom plate assembly is filled with the thermal insulation material, the weight of the bottom plate assembly can also be lowered obviously, hollow structures are arranged, and thus the structural strength of the bottom plate assembly can further be ensured.

The invention relates to a light-weight suspension system of an automobile, in particular to a carbon fiber composite McPherson suspension control arm. The carbon fiber composite McPherson suspension control arm comprises a control arm body, a first bushing connected with an automobile body, a second bushing connected with a steering knuckle and a ball pin, wherein the control arm body is made of a carbon fiber composite and is hollow in the middle part; a first bushing end on which the first bushing is mounted, a second bushing end on which the second bushing is mounted, and a ball pin end to which the ball pin is connected are respectively arranged on the control arm body. The control arm disclosed by the invention has the advantages of being light in mass, high in intensity, high in impact resistance and the like, and the thickness can be designed, realization of the light weight of automobile parts is facilitated, and the development requirements of a conventional automotive technology for the respects of being energy-saving, environmentally-friendly, safe and the like are met; in addition, the invention further provides a preparation method of the control arm.

The invention discloses a construction method of a low-clearance swing bridge across an operational line. The construction method comprises the steps of preparing for swing, installing and constructing a swing structure by virtue of the techniques of step-by-step installation and multiple pouring, performing beam body construction, performing a balance weighing test and trial swing construction, allowing formal swing to be in place, and using a steel shell method to perform the construction of an ultra-low-clearance closure segment. The construction method of the low-clearance swing bridge across the operational line adopts a spherical hinge multistep installation precise control technique, a balance weighing test pre-weighting technique, a swing parameter correction and precise positioning technique and a closure segment ultra-low-clearance steel shell construction technique to meet specifications, precision of design drawings and quality requirements, and leads the way in swing spherical hinge installation precision, swing balance stability and precision control. The construction method solves the difficult problem of insufficient clearance under the bottom of the bridge, and ensures the safety of the operational line.