4results about How to "Large charge" patented technology

The utility model discloses a kind of 48 millimeter detonation bomb of deterrent type hand-throwing type riot, including firing mechanism and medicine box mechanism, firing mechanism includes fuse body, grip piece and needle prick delay detonator, still movably connected with pin shaft and split pin on fuse body, still connected with spring and firing pin block assembly on pin shaft, firing pin block assembly includes firing pin and turnover block, firing pin block assembly has first position and second position, when first position, spring is in compression state under the action of turnover block, and spring reset can drive firing pin block assembly to rotate from first position to second position;Split pin is connected with pull ring;Medicine box mechanism includes shell, inner medicine box and end cover, inner medicine box is filled with detonating agent, needle prick delay detonator extends into detonating agent, filling chamber is opened in shell, filling chamber is filled with paraffin wax.This scheme can emit greater sound and strong light, suitable for use in vast space, and can carry out more accurate strike.

This utility model discloses an auxiliary charging structure for open-pit water-bearing blast holes, including a water-bearing blast hole and an auxiliary charging mechanism. The auxiliary charging mechanism further includes a longitudinal guide cable, a counterweight, emulsion explosive rolls, a detonating cord, a transverse fixing cable, and a plugging section. The bottom end of the longitudinal guide cable is connected to the counterweight, which is located at the bottom of the water-bearing blast hole. The top end of the longitudinal guide cable extends to the outside of the water-bearing blast hole. Several rolls of emulsion explosive are wrapped from bottom to top on the longitudinal guide cable above the counterweight via the transverse fixing cable. Each roll of explosive also contains the same detonating cord, the top end of which extends to the outside of the water-bearing blast hole along with the longitudinal guide cable. The plugging section is located at the top of the water-bearing blast hole. The function of this utility model is to provide an auxiliary charging structure for open-pit water-bearing blast holes, thereby optimizing the charging structure, improving blasting effects, and reducing the residual explosive rate.

The utility model discloses an anti-jamming discharging structure for foam discharging gas production, belongs to the technical field of foam discharging ball throwing, and aims to solve the technical problem that in the prior art, foam discharging balls are prone to jamming due to the fact that the throwing number of the foam discharging balls is large. The rotary throttling device comprises a rotary throttling assembly, a funnel disc arranged below the rotary throttling assembly, a discharging pipeline connected with a discharging port of the funnel disc and a pressure container bottom sealing head used for fixing the funnel disc. A stirring wedge is arranged on the lower end face of the rotary throttling assembly and comprises a connecting rod and a tooth-shaped piece, and the tooth-shaped piece is used for stirring foam discharging balls clamped at the discharging port of the funnel disc or the upper portion of the discharging pipeline. The anti-jamming emptying structure for foam drainage gas production can be better used for drainage gas production work of natural gas production, and is wide in application range, large in chemical dosage, short in operation time and controllable in cost.

The invention discloses a solid charge for realizing high-thrust constant-surface combustion and a manufacturing process thereof, and belongs to the field of solid rocket engines, the solid charge comprises a grain, coating layers are arranged at the axial rear end and the rear end face of the grain, at least one groove distributed in the axial direction is formed in each coating layer, and the grain is arranged in the groove. The axial front end of the groove is communicated with the axial front end of the grain, the surface, without the coating layer, of the grain is a burning surface, different thrust requirements can be met by changing the area of the coating layer and the area of the groove, so that the constant pushing rule of the burning surface is achieved, and the missile keeps working with constant large thrust. And the large explosive loading amount is achieved, the missile range is increased, and the technical problem that constant large thrust cannot be achieved while the explosive loading amount is guaranteed in the prior art is solved.