60results about How to "Eliminate tightness" patented technology

The invention provides a side pressing and riveting device of refrigerator bottom steel. The side pressing and riveting device comprises a supporting device, a hold-down device and pressing and riveting devices. The invention further provides an assembling method of the refrigerator bottom steel. The assembling method of the refrigerator bottom steel comprises the following steps that a bottom steel plate is arranged on the supporting device; the hold-down device moves downwards until the hold-down device tightly presses against the bottom steel plate; a left side plate and a right side plate are sequentially inserted into V-shaped grooves in the two side edges of the bottom steel plate; the pressing and riveting devices move towards each other, so that the V-shaped grooves in the bottom steel plate are tightly wrapped on the edge of the left side plate and the edge of the right side plate under the action of the pressing and riveting devices; punching pins in the pressing and riveting devices enable laminated pits to be formed in the edge of the bottom steel plate, the edge of the left side plate and the edge of the right side plate; When the assembly process is finished, the refrigerator bottom steel is taken down after the pressing and riveting devices and the hold-down device are removed. According to the side pressing and riveting device of the refrigerator bottom steel and the assembling method of the refrigerator bottom steel, it is guaranteed that the left side plate and the right side are connected with the bottom steel plate solidly without falling off, welding spots and sealing auxiliary materials are eliminated, production efficiency is improved, and the percent of pass of products is guaranteed.

The invention relates to a machine fish, wherein it is characterized in that: it comprises a fish head module sealed, left and right chest fin modules, at least two driving modules, and caudal fin; said fish head module has controller and main motor for floating the left and right chest fin modules whose main axles via movable sealing device are connected to the main motor; the left and right chest fin modules both have assist motors to drive the chest fins up and down; the axle of chest fin via the movable sealing device is connected to the assist motors; the driving module via the swing rod is connected; the first driving module via the head-tail connector is fixed on the back of fish head module; the caudal fin via the connector is connected to the back of driving module. The invention can be used in underwater detection, etc.

The invention discloses a Chinese medicinal shinyleaf prickly ash root nourishing and itch-relieving shower gel, and relates to the technical field of daily chemical products. The shower gel is prepared from a cationic surfactant, an anionic surfactant, a conditioner, a nonionic surfactant, an ampholytic surfactant, a polyol moistening agent, a pearling agent, shinyleaf prickly ash root extract, natural tea extract, high-efficiency nourishing components, citric acid, sodium citrate, sodium chloride, essence, Kathon and proper water. The shower gel has basic cleaning effect, mild performance, low irritation to skin, and can be used for effectively nourishing skin, eliminating skin tension after shower and effectively relieving itch.

The properly tightening safety belt comprises belt, winder, inserting board, fastener and limiter. The limiter comprises casing with side belt port and upper and lower rotating shafts; the lower rotating shaft is fitted movably to two lower shaft seats with electromagnet and has fixing and closing sleeve and ratchet mechanism; the upper rotating shaft is provided with fixing and closing sleeve, two movably fitted shaft seats in slide rail and with spring, ratchet mechanism and electromagnet; and there may be motor for driving the lower rotating shaft. With automatic or hand limiter, the properly tightening safety belt has properly adjustable tightness, and may be used widely in automobile, airplane, high speed train, etc.

A coil spring for a bed mattress, At least one of contact wiring portions 16-5 and 16-5' of the upper and lower exposed wiring portions 16 and 16' which abut to the end wiring portions 14 while the upper and lower exposed wiring portion 16, 16' are being compressed has a contact surface A which is in contact with one corresponding end wiring portion of the end wiring portions 14, whereby frictional noise between the exposed wiring portion 16, 16' and the end wiring portion 14 is prevented. It is possible to consequently remove friction that is created due to contact between the exposed wiring portion and the end wiring portion while the exposed portion is being compressed, thereby preventing noise. The exposed wiring portion and the body wiring portion move only upward and downward without being displaced or deformed in the lateral direction, thereby increasing longevity.