2results about How to "Not fall off" patented technology

The utility model provides a veneering type nasal pillow, including nasal pillow support part, fitting part and nasal plug part, wherein the nasal pillow support part includes support body and be provided on the support body and correspond to the air outlet end of nostril, the front side of fitting part is fixed on the support body, and the nasal plug part is fixed on the front side of fitting part. The back face of the attaching part is attached to the outer edges of the nostrils and located on cheeks on the two sides of the nose, the nose plug part is arranged on the back face of the attaching part and extends into the nostrils, the nose plug part is provided with an air conveying hole penetrating through the nose plug part, and the air conveying hole is communicated with the air outlet end. According to the veneering type nose pillow, the nose plug parts extend into the nostrils to be tightly attached to the nostrils, meanwhile, the attaching parts are attached to the outer edges of the nostrils and fixed to the cheeks located on the two sides of the nose, the nose pillow supporting parts are firmly attached to the nose of a user and cannot fall off, and therefore the pressurized air supply effect of the nose pillow is improved.

This invention discloses a large-hole blasting charging device, belonging to the technical field of charging devices. It includes a nylon rope, which hooks a bomb via a hooking mechanism. The hooking mechanism includes a first arc-shaped block and a second arc-shaped block; a connecting mechanism; and a replacement mechanism. By setting up the hooking mechanism, the second arc-shaped block hooks the explosive. During charging, after the explosive cartridge is placed at the bottom of the hole, the nylon rope is quickly pulled up. Due to inertia, the force on the spring is much greater than the weight of the explosive, causing the spring to deform. Rotation occurs between the first and second arc-shaped blocks, and the second arc-shaped block separates from the explosive, thus unhooking the explosive. The spring force is selected to be greater than the weight of a single emulsion explosive. During the charging process, the explosive is prevented from falling off, avoiding affecting the blasting effect. This method avoids the problem of the rope becoming entangled after detaching from the explosive, improving operational safety and construction efficiency. This method is applicable to all large-hole blasting charging operations, both on the surface and underground.