30results about How to "Maintain tightness" patented technology

[Objective] To provide a spark plug which is configured such that an insulation member, from which a center electrode projects, is pressed frontward and held in a metallic shell, and is fixed by means of crimping the rear end of the metallic shell, and which can prevent a drop in gas tightness between the metallic shell and the insulation member due to a difference in thermal expansion therebetween.

[Means for Solution] In a spark plug in which a mating shaft portion (10) of an insulation member (1) is loose-fitted into a mating hole portion (30) of a metallic shell (21), a filler (41) for maintaining gas tightness is charged between the outer circumferential surface of the mating shaft portion (10) and the inner circumferential surface of the mating hole portion (30). Despite the thermal expansion difference, the gas tightness is maintained, because the filler (41) for maintaining gas tightness is charged between the inner and outer circumferential surfaces.

Provided is a production method for a polyimide with a black resin cured film, the method comprising a step for obtaining a black resin cured film by curing a black resin composition on a polyimide, wherein: the step for obtaining a black resin cured film includes a step for processing the black resin composition with a predetermined spray impact; and the distance to an end of a top portion of theblack resin from a point where a line that is perpendicular with respect to the surface of the polyimide and that passes through a substrate-adhered end part between the black resin cured film and the polyimide intersects the top portion of the black resin cured film, is not more than 25 mu m.

A metal wire strand device comprises a pay-off unit, a strand unit and a take-up unit. That pay-off unit is provided with a first frame body, a cross bar is installed at the lower end of the first frame body, a discharge wire roller is rotatably connected on the cross bar, and a tensioning part matched with the number of pay-off rollers is arranged at the upper end of the first frame body. The stranding unit is provided with a body, and a pair of first axle seats distributed at left and right intervals are arranged in the body. A stranding frame is rotatably connected between the two axle seats, and the metal wire on the stranding frame extends into the taking-up unit through the stranding wire. A take-up unit comprises a second frame body, wherein that second frame body is externally mounted with a second motor, and a take-up part driven by the second motor is mount in the second frame body; a control cabinet with an operation interface is installed on the machine body. The wire stranding device of the invention is divided into three parts, namely, a pay-off unit, a stranded unit and a take-up unit, and three steps of automatic pay-off, stranding and take-up are realized, which isconvenient and quick, and is worth popularizing.

An electronic apparatus includes the following: a heat dissipation chamber that is formed by liquid tightly separating the inside of s main unit case with a partition, has an inlet air vent and an outlet air vent in the partition, and includes a heat dissipation portion; a cooling fan that is located in the heat dissipation chamber; an inlet that is provided in the main unit case to introduce outside air into the heat dissipation chamber through the inlet air vent; and an outlet that is provided in the main unit case to exhaust an air flow sent from the cooling fan to the outside through the outlet air vent. An air channel that extends from the inlet air vent through a side wall of the main unit case to communicate the heat dissipation chamber with the inlet is liquid tightly sealed from the internal space of the main unit case with a sealing wall. A plurality of plate-shaped ribs are provided in the air channel so as to extend in a flow path direction and arranged in a lateral direction of the inlet air vent. The rigidity of the main unit case can be ensured sufficiently while maintaining the liquid tightness between the inside of the main unit case and the heat dissipation chamber.

The invention discloses a foldable and retractable sunshade with a camera function, and relates to the technical field of sunshades. The foldable and retractable sunshade with the camera function specifically comprises a base bracket, a bearing base and a positioning ring, wherein the base bracket and the bearing base are welded, and the central axes of the base bracket, the bearing base and the positioning ring are coincident, pressing blocks are disposed on the left side and the right side of the base bracket, an edge strip is arranged at the upper end of the bearing base, fixing screws areinstalled inside the left end and the right end of the edge strip, and the positioning ring is internally provided with a limiting sleeve. According to the foldable and retractable sunshade with the camera function, performance of the whole device is greatly improved while the structure is increased, the whole device is made more flexible during use, and the foldable and retractable sunshade withthe camera function can be folded and contracted to keep the device as small as possible. Storage, movement, and transportation is facilitated. At the same time, camera equipment is installed at the top end of the sunshade, and usage requirements of people are effectively met.

The techniques introduced here include a system and method for efficiently connecting two or more pipes through the combination of a pushing plate, a gasket and a sealing plate. Such techniques exploit the presence of concentric protuberances, or rings, on the sealing plate that help, also thanks to the space between them, in keeping the cleanness, tightness and flexibility of the conjunction, especially when sticky substances, like a sludge, are dealt with.

An easy-pasting exercise patch includes a patch body having an under surface to which a release paper is attached. The patch body is in the form of a thin sheet having a bottom having a center serving as a reference to define a plurality of turns of non-adhesive-coated circumferential slots in the form of concentric circles. The patch allows ready application by a user to his or her waist or abdomen. After the patch has been pasted, due to the arrangement of the circumferential slots, a radiating stretching force is induced toward the center to force the muscles of the pasted site to do autonomous wriggles for realizing the effect of exercise and removing excessive fat from the pasted site of the human body.

A secondary battery includes a resin film, reference electrodes, temperature sensors, reference electrode wiring lines and temperature sensor wiring lines that are insulating from one another, and an insulating resin cover layer. In the resin film, a connector part connecting a detector part and a terminal part extends from the inside to the outside of the container through a seal member. Each of the reference electrode wiring lines and the temperature sensor wiring lines extend through the connector part to the terminal part. A resin cover layer is provided for the detector part and the connector part, covers the temperature sensors, the reference electrode wiring lines, and the temperature sensor wiring lines, and exposes the reference electrodes.

The invention discloses a pickling formula of Maoshan old goose. The pickling raw materials used in the formula disclosed by the invention comprise a wet material group and a dry material group in parts by weight, wherein the wet material group comprises 13-18 parts of guar gum, 8-12 parts of a dark soy sauce, 1-2 parts of cold pressed lemon oil, 8-13 parts of a glucose water solution of 30%, 7-9 parts of calcium chloride of which the concentration is 0.05%, 6-8 parts of yellow wine, 2-4 parts of scallions, 2-4 parts of ginger and 5-8 parts of citric acid; the dry material group comprises 10-15 parts of tea leaves, 10-15 parts of medicated leaven, 10-15 parts of malt, 10-15 parts of endothelium corneum gigeriae galli, 10-15 parts of mint leaves, 0.5-2 parts of sodium citrate, 0.5-2 parts of sodium benzoate, 6-9 parts of konjaku flour, 0.3-0.5 part of pepper powder, 4-6 parts of nonfat dry milk powder, 0.2-0.5 part of allspice, 2-3 parts of dry red peppers, and 5-8 parts of orange skin. The old goose pickled with the formula provided by the invention is unique in mouth feel, is durable, flexible and non-greasy in meat quality, and particularly does not have the greasy taste of the skin of a conventional pickled old goose.

An optical component includes a base material and an antireflection film containing silica particles, wherein the silica particles have a first local maximum in the range of 1.5 nm or more and 2.5 nm or less (a first range), a second local maximum in the range of 3.5 nm or more and 4.5 nm or less (a second range), and a third local maximum in the range of 7.5 nm or more and 8.5 nm or less (a third range) in a number-based particle size distribution. It is preferred that the silica particles have a fourth local maximum in the range of 5.5 nm or more and 6.5 nm or less in the number-based particle size distribution.

The invention provides a sealing structure for a container and a cover body. The sealing structure involves the container and the cover body; the container comprises a bottom wall and a side wall which are connected, the bottom wall and the side wall jointly define a space, the other end, connected with the bottom wall, of the side wall is defined as an open end part, the side wall is provided with an inner side surface and an outer side surface which are opposite, and the inner side surface is provided with a first hook part; and the cover body is arranged at the open end part of the container, the cover body is provided with a covering part and a second hook part, the covering part covers the open end part in a close fit mode, and the second hook part hooks the first hook part. Therefore, the combination relation between the cover body and the container is more stable through covering the open end part with the covering part in a close fit mode and enabling the second hook part to hook the first hook part.

The polyester coating film is polyester film formed on at least one surface of polyester film of opacity over 0.3 optical density. The present invention features that the mirror brightness G1 in 60 deg of the coating surface and the mirror brightness G2 in 75 deg of the coating surface meet the requirements that G1 is not greater than 20 and that G2/G1 is 1-4.

Provided is a resin composition for forming a cured film, said resin composition comprising: (A) a (meth)acrylate polymer having a weight average molecular weight of 5,000 to 200,000 (excluding a (meth)acrylate polymer having a silane structure in a side chain thereof); (B) an agent capable of preventing migration and also capable of trapping ions, which comprises a benzotriazole compound; and (C) a solvent.

An operator cab (8) for work vehicles comprises: an operator cab body (11) in which an access opening (21) and a vent opening (22) are formed; a door (12) that opens and closes the access opening (21); a cover (13) that opens and closes the vent opening (22); a link mechanism (14) that links the door (12) and the cover (13) so that that cover (13) opens when the door (12) opens and the cover (13)closes when the door (12) closes; and a closing timing regulator (15) that stops a closing operation of the cover (13) during a first stage of an operation to close the door (12) and allows the closing operation of the cover (13) during a second stage of the operation to close the door (12), which is after the first stage.