10results about How to "Extended impact time" patented technology

The invention discloses a PDC drill bit with damping teeth. The drill bit comprises a drill bit body, a plurality of blades extending to the drill bit body and water holes formed in the drill bit body, and damping PDC modules are arranged on the blades; the damping PDC module is composed of damping PDC teeth, bushings, elastic elements and limiters, each damping PDC tooth comprises a polycrystalline diamond layer, a first supporting base body and a second supporting base body, and the axis of the first supporting base body and the axis of the second supporting base body are in an L shape; when the damping PDC teeth bear an overlarge axial load, the elastic element is compressed, and the scraping depth of the PDC teeth is reduced, and when the axial load is reduced, the elastic element is extended, and the scraping depth of the PDC teeth is increased. According to the drill bit, the scraping depth of the PDC teeth can be controlled, the characteristic that the PDC teeth are high in rock breaking efficiency in soft stratums is reserved, the phenomenon that the PDC teeth are clamped and slipped due to the fact that the PDC teeth drill too deep in stratums difficult to drill can be prevented, the rock breaking efficiency of the drill bit is improved, and the service life of the drill bit is prolonged.

The invention belongs to the technical field of agricultural equipment, and discloses an intelligent agricultural machine which comprises a rack, a placement box is fixedly mounted at the top end of the rack, seed sowing devices are fixedly mounted at the bottom end of the placement box at equal intervals, and a hopper is fixedly mounted at one end of each seed sowing device. According to the invention, more uniform covering and sowing are facilitated, the overall growth quality and yield of crops are improved, sowing work is completed by means of gas power instead of mechanical power, more efficient sowing efficiency can be achieved, dependence on machinery is reduced, energy consumption is reduced, and environmental protection is facilitated; meanwhile, the device is beneficial to centralizing the seeds and burying the seeds into more stable positions, and the contact area between the seeds and soil is increased, so that better rooting and germination conditions are provided for the seeds, the seeds can be sown more effectively in various soil textures, and the universality and adaptability of the device are improved.

The utility model relates to the technical field of batteries, and discloses a battery pack and electric equipment, and the battery pack comprises a box body, a battery pack and a protection structure, the battery pack is arranged in the box body; the liquid cooling structure is arranged in the box body and is connected with the battery pack; the protection structure is arranged in the box body, the protection structure comprises an energy absorption piece and a reinforcing piece, the energy absorption piece comprises a main body part, a first mounting cavity is formed in the main body part, the first mounting cavity is located between the liquid cooling structure and the inner wall of the box body, and the reinforcing piece is arranged in the first mounting cavity; according to the battery pack provided by the utility model, the liquid cooling structure can be protected through the energy absorption piece and the reinforcing piece, so that the liquid cooling structure is prevented from being damaged, and the safety performance of the battery pack is improved.

This utility model discloses a running shoe with an elastic spherical sole, belonging to the field of footwear technology. The shoe includes an upper and a sole. The sole includes a midsole and an outsole. The outsole is disposed at the bottom of the midsole, and the upper is connected to the top of the midsole. The midsole includes a base and an elastic mechanism. The elastic mechanism is disposed at the heel of the base and includes a base and an elastic support. The base has a V-shaped opening at the heel, and the elastic support is disposed within the V-shaped opening. This utility model provides deformation space at the heel of the midsole by providing a V-shaped opening at the high point of the heel. By filling the V-shaped opening with an elastic support, the midsole can provide better elasticity at the high point of the heel, giving the sole excellent rebound and shock absorption performance.

The utility model discloses a deformation-recoverable suspension bridge main cable anti-collision device which is embraced on a main cable in a pile casing form within a collapse stone collision range, and is specifically characterized in that a hoop is embraced on the main cable and is fixed through an M12 bolt, the hoop is welded with an inner connecting plate of a plurality of composite hyperelastic buffer bodies, and the composite hyperelastic buffer bodies are connected with the pile casing. The outer connecting plate of the composite hyperelastic buffer body is fixed with the casing shell through an M12 bolt, and the casing shell is secondarily connected through a flange; the composite hyperelastic buffer body is made into an arc-shaped inner connecting plate and an arc-shaped outer connecting plate by two square steel plates, and a cylindrical composite elastic buffer column is poured between the inner connecting plate and the outer connecting plate. The device has the advantages of being high in energy absorption rate, recoverable in deformation, reusable in low energy, recoverable in local deformation, low in maintenance cost and the like.

The utility model discloses a comfortable shoe with both buffering and boosting functions, which comprises a sole, a half sole buffering part is arranged in the sole, a half sole of the sole further comprises a springback part, and the springback part is lower than the half sole buffering part. And the foot sole is firstly buffered by the half sole buffering part and then is in contact with the springback part. The deformation quantity of the half sole buffering part under the same stress is larger than that of the springback part, the height of the buffering part is larger than that of the springback part, when the front sole touches the ground, the half sole buffering part prolongs the impact time of the foot sole touches the ground through deformation, the impact force of the foot sole is reduced, and when the gravity center of the foot is transferred to the half sole, the half sole acts on the springback part. The springback part exerts large reverse acting force on the foot sole, and therefore the good springback assisting effect is kept while the half sole buffering effect is improved.

The invention discloses an agricultural feed rapid drying device, and relates to the technical field of feed drying, a dispersing assembly comprises a dispersing cylinder, an iron sheet, an impact ball, a first magnet and a second magnet, and the dispersing cylinder comprises a connecting plate, a rubber plate and a blocking plate; in the rotating process of the dispersing barrel, a first magnet and a second iron sheet of the dispersing barrel can attract a second iron sheet, a rubber plate deforms, and in the magnetic force disappearance process, an impact ball can be bounced up to impact feed located outside the rubber plate or a connecting plate; meanwhile, when the two first magnets attract each other and the two second magnets attract each other, an impact space can be formed, part of the feed can be intercepted, the impact time of the impact balls is prolonged, and meanwhile the vibration dispersion effect of the feed in the impact space is improved; and when the magnetic force between the two magnets I and the two magnets II is gradually weakened, the rubber plate is reset through elastic force, and the vibration effect of the whole device can be improved.

The invention discloses an electronic device which comprises a frame body, an elastic supporting piece, a panel, a cover plate and a colloid, the elastic supporting piece is arranged on the frame body, a part of the elastic supporting piece is located between the panel and the frame body, and the cover plate is located on the side, away from the elastic supporting piece, of the panel. The colloid is arranged on the elastic supporting piece, and a part of the colloid is located between the edge of the cover plate and the elastic supporting piece.

This invention belongs to the field of civil defense engineering and explosion-proof protection technology, and relates to a polyurea-coated, panelless civil defense device, including a load-bearing outer panel, a reinforcing frame, elastic damping connectors, an internal cast-in-place body, an arc-shaped elastic support rod, and a support plate. The support plate's inner side contacts the arc-shaped protruding surface of the arc-shaped elastic support rod, forcing the rod to undergo elastic compression deformation. The arc-shaped structure of the support rod produces a progressive stiffness response under pressure: initially, the arc-shaped structure is easily deformable, providing a large displacement stroke to absorb energy; as the compression increases, the stiffness of the support rod gradually increases, effectively suppressing excessive deformation. During deformation, the arc-shaped elastic support rod generates a reaction force on the reinforcing frame, which is evenly distributed to the internal cast-in-place body through the three-dimensional mesh structure of the reinforcing frame. Its structural design is scientifically sound, easy to use, provides excellent protection, and is environmentally friendly.

The utility model discloses a tunnel middle partition wall vehicle collision prevention device which comprises a plurality of unit type protection devices, each unit type protection device is composed of a rigid anti-collision plate and eight deformation recoverable anti-collision buffering supports, and each buffering support is composed of two steel plates and cylindrical buffering materials poured between the steel plates. A steel plate on one side of the buffering support is welded to the back face of the rigid anti-collision plate, and a steel plate on the other side of the buffering support is installed on the tunnel middle partition wall through embedded bolts / expansion bolts. According to the utility model, long impact displacement can be provided, and the impact action time is prolonged; the device can be repeatedly used without being damaged within designed impact energy; the overall cost is low, installation is easy, and maintenance is convenient.