9results about How to "Increase guide" patented technology

The invention relates to the technical field of low-voltage electric appliances, in particular to a magnetic drive arc structure and a direct-current arc extinguishing system.The magnetic drive arc structure comprises an arc extinguishing chamber, one side of the arc extinguishing chamber is provided with a static arc angle, the static arc angle is connected with a static conducting rod, and the static conducting rod is provided with a static contact; the other side of the arc extinguish chamber is provided with a movable arc angle and is sequentially connected with a movable contact and a movable conducting rod; a first magnetizer and a first permanent magnet are sequentially arranged on the static conducting rod; a second permanent magnet and a second magnetizer are sequentially arranged on the movable arc angle; the polarities of the opposite polar surfaces of the first permanent magnet and the second permanent magnet are opposite. Through cooperation of the two magnetizers, the two permanent magnets, the moving arc angle and the static arc angle, special three-dimensional magnetic field distribution is generated in the arc motion chamber, direct current arcs in two directions can rapidly move towards the arc extinguish chamber, breaking of high-voltage non-polarity direct current is achieved, the structure is simple, and cost is low. The problems that in the prior art, a high-voltage electrodeless direct current breaking structure is complex in design and high in cost are solved.

The utility model relates to building decoration technical field especially, it is a kind of building curtain wall waterproof structure, its technical scheme includes: frame, first flow guide groove and second flow guide groove are fixedly installed from top to bottom in the frame inside, first reserved hole is equidistantly opened in the frame top, second reserved hole is opened in the frame bottom, the top of first flow guide groove adopts open structure design, both sides of the bottom of first flow guide groove are equipped with opening, the top length of first flow guide groove matches with the top length of frame inside, the bottom of second flow guide groove adopts open structure design, both sides of the top of second flow guide groove are equipped with opening, the bottom length of second flow guide groove matches with the bottom length of frame inside, second flow guide groove upper end face is sleeved in the outside of first flow guide groove lower end face.The utility model has the advantages of having waterproof function and still keeping the advantages of ventilation and ventilation in rainy day.

The utility model discloses a Beidou SSAS control box heat dissipation device, which comprises a control box body and a heat dissipation mechanism, and is characterized in that the heat dissipation mechanism comprises a side concave seat, an inner air guide fan, an outer support frame, a heat dissipation fan, a grating plate, a matching frame and a gradually-lowered air guide cover, the side concave seat is arranged on the side box wall of the control box body in an inward concave manner, and the inner air guide fan is arranged on the outer support frame. According to the Beidou SSAS control box, a heat dissipation mechanism is arranged at the position of the control box body of an existing Beidou SSAS control box, wind power supply and guide structures are arranged on the side faces and the back face of the control box body of the heat dissipation mechanism, and the heat dissipation mechanism adopts a multi-direction airflow guide mode; an inner air guide fan supplies air inwards from a side concave seat sieve hole window and is matched with an L-shaped lifting and guiding plate and a grating groove to accelerate discharge of hot air outwards, and a cooling fan exhausts air outwards through a gradually-lowered air guide cover to form penetrating airflow, so that the heat guiding and discharging efficiency at the position of the control box body is greatly improved, and internal accumulated heat is reduced.

The utility model relates to the technical field of total stations, and discloses a land planning survey positioning device which comprises a main body shell and a merging part arranged at the top of the main body shell. Side shells are fixedly mounted on the left side and the right side of the main body shell, a screen is arranged on the lower side face of the front face of the main body shell, and an objective lens probe is movably mounted at the center of the front face of the main body shell; the combination part comprises two protection plates, the two protection plates are movably installed on the opposite sides of the two side position shells respectively, and the tops of the protection plates are provided with movable rotating shafts. According to the land planning survey positioning device, through the design of the water guide groove and the convergence groove in the top of the protection plate, rainwater or other liquid falling on the protection plate can be rapidly guided to the convergence groove and discharged, erosion of the liquid to electronic elements in the device is effectively prevented, and the waterproof performance of the device is enhanced.

The utility model belongs to the technical field of circuit breaker arc extinguishing, and discloses an arc extinguishing device of a circuit breaker, which comprises a shell, a fixed block fixedly arranged in the left side of the shell, an interface end fixedly arranged in the fixed block, a guide pipe fixedly arranged on the right side of the interface end, and an arc extinguishing assembly arranged in the guide pipe. The arc extinguishing assembly comprises a pipe body arranged in the guide pipe in a sliding mode, fixing plates are fixedly arranged on the upper side and the lower side of the right side of the pipe body, sealing blocks are arranged on the outer sides of the fixing plates in a sliding mode, and the sealing blocks and the pipe body are arranged in a sliding mode. And after being separated from the sealing blocks, the sealing blocks at the other end can be directly pushed to be close to each other and closed together through the pushing of the spring on the outer side of the telescopic shaft to form a closed state, so that the electric arc is effectively blocked and sealed, and the size of the circuit breaker can be effectively reduced.

An electromagnetic heating coil includes a support frame, on which a first coil assembly and a second coil assembly are wound. The first coil assembly has multiple first coils, and the second coil assembly has multiple second coils. The support frame has multiple winding sections, each including a first winding section and a second winding section. The first coils are configured to be wound by a single wire group around the first and second winding sections. In adjacent first and second coils, the second coils are configured to be wound by a single wire group around the first and / or second winding sections, such that at least a portion of the projection area formed by the second coil projecting onto the first coil in the vertical direction overlaps with the first coil. This solution solves the problem of poor uniform heating due to concentrated heating in existing electromagnetic heating coils and further addresses the problem of heating blind spots in existing electromagnetic heating coils.

The utility model discloses an air bag stamping device. The air bag stamping device comprises a base, a stamping driving mechanism, a lower punch mechanism and an upper punch mechanism. The punching driving mechanism is used for driving the upper punch mechanism to be inserted into or pulled out of the lower punch mechanism. The upper punch mechanism comprises a connecting jacking column, a workpiece end punching assembly and a punching assembly. An air bag workpiece is inserted into the lower punch mechanism in the horizontal direction, the workpiece end punching assembly and the lower punch mechanism are matched in a jacking mode to punch and cut the end of the air bag workpiece, the punching assembly and the lower punch mechanism are matched in a jacking mode to cut and punch the air bag workpiece, and one-time forming is achieved; the automatic punching process of the air bag workpiece is achieved, the upper punch mechanism can be automatically inserted into or pulled out of the lower punch mechanism through the driving effect of the punching driving mechanism, the accuracy and consistency of the punching process are ensured, the problems of size errors and air leakage occurring in manual operation are effectively avoided, and the production efficiency is improved. And the quality and the production efficiency of air bag products are improved.

The invention discloses an HAC calcium-based desulfurization Venturi injection device, relates to the technical field of flue gas treatment, and aims to improve the dispersion effect and desulfurization efficiency of desulfurization reactants and flue gas. The device comprises a smoke inlet pipe, a smoke outlet pipe and a venturi mixer, a diffusion assembly and a reaction assembly are arranged in the venturi mixer, and desulfurization reactants are dispersed to the maximum extent in an acceleration narrow opening through a through hole in a negative pressure bin and rotary jet airflow of a rotary drum. According to the device, the flow control valve is used for adjusting the backflow flue gas amount, secondary mixing of flue gas and reactants is achieved through the main flow channel and the auxiliary flow channel, and the uniformity and efficiency of the desulfurization reaction are effectively improved. According to the scheme, accurate feeding of reactants is guaranteed, efficient and stable operation can be kept under different working conditions, and good energy-saving and environment-friendly effects are achieved.