7results about How to "Improve crashworthiness" patented technology

The invention discloses a bidirectional sloping bench staggered combined sandwich structure which comprises an upper panel, a lower panel and a combined core arranged between the upper panel and the lower panel. The combined core body is formed by assembling an upper core body and a lower core body; the upper core body comprises an upper core plate, a plurality of inclined tables and a plurality of transverse clamping grooves, the inclined tables and the transverse clamping grooves are arranged on the upper core plate, and the inclined tables and the transverse clamping grooves are arranged on the upper core plate, inclined in the transverse direction and arranged in a staggered mode in the inclined direction. The lower core body comprises a lower core plate, a plurality of inclined tables and a plurality of longitudinal clamping grooves, the free end of the inclined table, inclining in the transverse direction, of the upper core body is connected with the longitudinal clamping groove in the corresponding position of the lower core body in an inserted mode, the inclined table, inclining in the longitudinal direction, of the lower core body is connected with the transverse clamping groove of the upper core body in an inserted mode, and a two-way staggered interlocking structure is formed. According to the invention, multidirectional balanced bearing can be realized while light weight is maintained, the modular plug-in combination design is adopted, so that assembly is facilitated, and the modular plug-in combination design can be flexibly adapted to complex curved surface configurations such as planes and cylinders.

The present invention relates to a front vehicle body structure comprising an upper longitudinal beam and an upper wing rail (14) designed to support a vehicle wing, said upper wing rail (14) extending in a longitudinal direction substantially parallel to the upper longitudinal beam and having a front end (14a) and a rear end (14b) spaced along the longitudinal direction. The resistance to plastic deformation of the upper wing rail (14) increases from the front end (14a) of the upper wing rail (14) to the rear end (14b) of the upper wing rail (14). The yield strength of the material in the rear section (62) is greater than the yield strength of the material in the front section (60) and / or the rear section (62) has a greater wall thickness than the wall thickness of the front section (60).

The application provides a vehicle body and battery pack structure assembly and a vehicle. The vehicle body and battery pack structure assembly comprises a first rocker beam, a second rocker beam, a front floor assembly and a battery pack housing. The front floor assembly comprises a front floor. Two sides of the front floor along the vehicle width direction are connected with the first rocker beam and the second rocker beam respectively. The battery pack housing is located between the first rocker beam and the second rocker beam and on one side of the front floor along the vehicle height direction. The battery pack housing comprises a first side sill, a second side sill and a mounting side sill extending along the vehicle length direction. The first side sill is connected with the first rocker beam. The mounting side sill comprises a connecting portion and a mounting portion, and the mounting portion is connected with the second rocker beam. The second side sill is connected with the mounting portion through the connecting portion. The mounting portion, the connecting portion and the second side sill form an accommodation space. A front floor lower longitudinal beam is arranged between the connecting portion and the front floor and extends along the vehicle length direction, and is used for connecting the mounting side sill with the front floor.

The utility model relates to a shower room technical field discloses a shower room's pull rod cover structure, including the pull rod cover body for pull rod cover set, the pull rod cover body has one installation groove through its upper and lower ends, and has the counterbore mounting hole of being located on the groove bottom of installation groove, one is hidden anti -collision fastener for hiding counterbore mounting hole and is connected with the compatible buckle on the installation groove, the door body limiting groove for shower room door embedding limit is passed through the upper and lower ends of hidden anti -collision fastener and has, the utility model provides shower room's pull rod cover structure not only plays good anti -collision effect to shower room door, prevents the shower room door from happening and wall body collision situation when moving close to wall body, and high structural stability has promoted the use experience of shower room, and moreover has promoted the overall aesthetic degree of shower room, makes shower space more neat, harmonious, and can hide bolt, and dismouting is convenient, is favorable to the assembly of structure and the damage maintenance of structure.

This utility model relates to the field of traffic facility technology and discloses a prefabricated crash barrier and a prefabricated crash barrier system, including: a base, connecting ribs, crash barrier pipes, and column kits; the base has an upward-facing connecting groove, the crash barrier pipe has a pre-embedded section and a sleeve section connected in the vertical direction, the pre-embedded section is disposed in the connecting groove, and the outer peripheral wall of the pre-embedded section and the groove wall of the connecting groove form a first receiving cavity for filling cement mortar, the connecting ribs pass through the groove wall of the connecting groove to connect the base and the pre-embedded section, the sleeve section passes through the groove opening of the connecting groove and protrudes upward relative to the base, and the column kits are sleeved on the sleeve section. This utility model occupies less space, has a simple and beautiful appearance, and is suitable for urban safety protection.

This invention provides a damping-type energy-dissipating bridge collision protection structure and device. The damping-type energy-dissipating bridge collision protection structure includes a collision protection chamber filled with a damping medium. An energy dissipator is located on the side of the collision protection chamber facing the bridge pier, and the energy dissipator is connected to the collision protection chamber via a valve. The energy dissipator has at least one axially arranged baffle plate with multiple damping flow channels. This structure utilizes the collision protection chamber to achieve flexible buffering against ship collision impacts. Simultaneously, by combining the viscous properties of the damping medium, the impact kinetic energy is dissipated as internal energy, resulting in good overall collision resistance and simple maintenance after a collision.

The application discloses a controllable energy-absorbing CH-type corrugated stand column and an aircraft fuselage structure, and belongs to the technical field of aircraft structures. A H-type corrugated section is arranged in the middle section of the CH-type corrugated stand column, and upper and lower ends are C-type connecting sections, which are connected with a floor beam and a fuselage frame through corner pieces, respectively. The aircraft fuselage structure comprises the CH-type corrugated stand column and the fuselage frame, and a plurality of induction openings are arranged at the upper edge strips of the fuselage frame. Through the combined action of the CH-type corrugated stand column and the fuselage frame, a plurality of plastic hinges are generated at the induction openings, so that stable progressive failure of the CH-type corrugated stand column under pressure is ensured, controllable failure and energy absorption stability of the aircraft fuselage frame section are realized, the energy absorption efficiency of the structure and the landing performance are greatly improved, and the problems of uncontrollable deformation of the thin-walled structure of the aircraft fuselage lower opening section and low energy absorption efficiency are solved.