48results about How to "Not easy to gap" patented technology

This waterproof slide fastener (1, 2, 3, 4) is configured so that first and second through-holes (14a, 14b) are formed at specific intervals in tape side edges of waterproof tapes (11), and so that first and second halves (15, 16) of fastener elements (12) are connected and integrated together through the first through-holes (14a). A stopper (20, 30, 40, 50, 60) has a body section (21, 31, 41, 51, 61) and an extension section (22, 32, 42, 52, 62) which extends from the body section (21, 31, 41, 51, 61). First and second halves (23, 24) of the stopper (20, 30, 40, 50, 60) are disposed so as to straddle the pair of waterproof tapes (11) and are connected and integrated together through the second through-holes (14b). As a result of this configuration, the manufacturing step of the waterproof slide fastener (1, 2, 3, 4) is simplified, and water is prevented from entering even if the slide fastener (1, 2, 3, 4) is subjected to a lateral pulling force.

An image forming device, which is configured to form an image on a sheet, includes a main body casing, a catch tray provided on the main body casing to be loaded with the sheet discharged in a first direction with the image formed thereon, and a cover configured to cover a downstream-side face of the main body casing in the first direction in an openable and closable manner. The catch tray is disposed such that a downstream-side end thereof in the first direction faces an upstream-side end of the cover in the first direction. The downstream-side end of the catch tray and the upstream-side end of the cover are configured to mutually overlap when viewed in a second direction perpendicular to the first direction and a vertical direction.

The invention provides a flat coil flat insulated electric wire and a manufacturing method for the same. The flat insulated electric wire is characterized in that the wall thickness of a conductive wire rod on the bend external peripheral part is greater than the wall thickness of the conductive wire rod on the bend internal peripheral part; the insulated coating thickness of the bend external peripheral part is greater than the insulated coating thickness of the bend internal peripheral part; preferentially, the insulated coating thickness of the external peripheral part is more than 1.5 times of the insulated coating thickness of the internal peripheral part; and the wall thickness of the conductive wire rod and the insulated coating part of the external peripheral part is 1.2 to 1.7 times of the wall thickness of the conductive wire rod and the insulated coating part of the internal peripheral part.

The invention discloses a winglet device which comprises a wingtip connecting part (1), ratchet wheel sleeves (2), ratchet wheel rods (3) and pressing bolts (4), wherein the wingtip connecting part (1) is connected to a wingtip of a wing; one side of the wingtip connecting part (1) is provided with two or more U-shaped grooves; two inner end surfaces of each U-shaped groove are respectively provided with a ratchet wheel groove in the shape of a non-revolving body and a threaded hole; the ratchet wheel sleeve (2) is arranged in the ratchet wheel groove, the shape of each ratchet wheel sleeve is consistent with that of the corresponding ratchet wheel groove, and a ratchet-wheel-shaped through hole is formed in each ratchet wheel sleeve; each ratchet wheel rod (3) comprises a ratchet wheel part and a connecting part, wherein the connecting part is connected to the winglet, the periphery of the ratchet wheel part is consistent with the through hole in shape, and the ratchet wheel part is arranged in the through hole of the ratchet wheel sleeve (2) in a sleeved mode; a threaded end of each pressing bolt (4) is screwed in the corresponding threaded hole, and the other end of each pressing bolt (4) axially presses one end surface of the corresponding ratchet wheel rod (3) connecting part to limit axial movement of the corresponding ratchet wheel rod (3). According to the winglet device, the ratchet wheel structure is relatively small in space occupancy, lighter in weight and highly adjustable in angle.

In one embodiment, a predetermined period different from a fixing process period in which fixing of toner to recording paper is carried out is set as a toner removal period, and during the toner removal period a hot roller and a pressure roller are intermittently rotated, and separation claws in contact with the rollers are caused to vibrate by the intermittent rotation of the rollers such that toner adhered to the separation claws is caused to drop due to this and is removed. Also, faces of the separation claws that oppose the surfaces of the hot roller and the pressure roller are set in a convex shape.

The purpose of the present invention is to improve, in a grommet to be fitted into a track-shaped through hole, a water-stopping property between an inner circumferential edge of the through hole and a bottom surface of a ring-shaped groove of the grommet. A grommet of the present invention comprises: a cylindrical part; and a fitting part that is formed so as to protrude to an outer circumferential part of the cylindrical part and that has formed, in an outer circumferential part thereof, a ring-shaped groove into which the inner circumferential edge of the through hole can be inserted. A bottom surface of the ring-shaped groove is formed in a track shape that has a pair of straight-line portions and a pair of arc-shaped portions that are each formed in an outwardly convex arc shape and that connect the two ends on one side of the pair of straight-line portions and the two ends on the other side of the pair of straight-line portions. An inner circumferential part of each arc-shaped portion includes a part having a thickness that gradually increases from the center thereof toward connecting parts between the arc-shaped portions and the straight-line portions.

The invention relates to the manufacturing field of explosive materials and providing a plastic reinforcing cap for a detonating cap. The plastic reinforcing cap is used for solving the problems that the existing plastic reinforcing cap is deformed and cracked under high pressure, easy to chap under an extreme environment and melt and block a flash hole when the eruption of the first fire composition of the detonating cap is delayed, and easy to tear and smash during explosion. The plastic reinforcing cap can be suitable for detonating cap shells made from various materials, is convenient for static electricity guiding and further reducing the frictional force between the reinforcing cap and the inner wall of the tube, and easy to popularize and use.

A method for making concave-convex surface of water sports skateboard is provided. The concave and convex surface design of water sports skateboard is realized by designing the bottom surface of the foaming mould, the concave and convex surface of the bottom surface of the foaming mold is designed as a front concave surface, a central concave surface and a rear concave surface, the front concave surface and the middle concave surface are separated from each other by a first arcuate convex portion. The middle concave surface and the rear concave surface are separated from each other by a secondarc-shaped convex part (13), and the drainage groove is composed of a front drainage notch (14) designed on the front concave surface, a middle drainage notch (15) designed on the middle concave surface and a rear drainage groove (16) designed on the rear concave surface. The invention has the advantages of less waste of materials, excellent overall waterproofing performance, long service life, convenient carrying, no water accumulation on the surface of the skateboard, and good use effect.

The invention discloses a winglet device which comprises a wingtip connecting part (1), ratchet wheel sleeves (2), ratchet wheel rods (3) and pressing bolts (4), wherein the wingtip connecting part (1) is connected to a wingtip of a wing; one side of the wingtip connecting part (1) is provided with two or more U-shaped grooves; two inner end surfaces of each U-shaped groove are respectively provided with a ratchet wheel groove in the shape of a non-revolving body and a threaded hole; the ratchet wheel sleeve (2) is arranged in the ratchet wheel groove, the shape of each ratchet wheel sleeve is consistent with that of the corresponding ratchet wheel groove, and a ratchet-wheel-shaped through hole is formed in each ratchet wheel sleeve; each ratchet wheel rod (3) comprises a ratchet wheel part and a connecting part, wherein the connecting part is connected to the winglet, the periphery of the ratchet wheel part is consistent with the through hole in shape, and the ratchet wheel part is arranged in the through hole of the ratchet wheel sleeve (2) in a sleeved mode; a threaded end of each pressing bolt (4) is screwed in the corresponding threaded hole, and the other end of each pressing bolt (4) axially presses one end surface of the corresponding ratchet wheel rod (3) connecting part to limit axial movement of the corresponding ratchet wheel rod (3). According to the winglet device, the ratchet wheel structure is relatively small in space occupancy, lighter in weight and highly adjustable in angle.

The invention relates to a method for preparation of sickle. It contains the following steps: cutting the metallic sheet, folding the back, welding the seam, coating one face of the knife plate with a masking paste and then with chemical treatment, welding the trouser- part material with the knife plate, punching the trouser-part material to mould, whole grinding, quenching, tempering, aligning, coarse grinding, and correct grinding to prepare the product. The sickle is intense and not easy to be out of shape or to break; and the sickle can be produced by industrialization.

The invention relates to a method for forming a shallow-trench isolation structure. The method comprises the following steps: providing a semiconductor substrate, and forming a trench in the semiconductor substrate; forming a liner layer in the trench, wherein the liner layer covers the side wall and the bottom of the trench; filling the whole trench, in which f the liner layer is formed, with oxides; sequentially conducting water vapor annealing, low-pressure annealing and dry annealing on the oxides; conducting planarization processing on the oxides. According to the method for forming the shallow-trench isolation structure, the line width loss of an active region is small.

The invention relates to a glass ceramic and a preparation method thereof, comprising the following raw materials by weight parts: 75-100 weight parts of quartz sands, 10-30 weight parts of lithium feldspar, 30-60 weight parts of feldspar, 25-45 weight parts of sodium carbonate, 2-8 weight parts of sodium nitrate, 2-6 weight parts of barium carbonate, 5-15 weight parts of fluorite powders, 5-10 weight parts of borax, 10-30 weight parts of sodium fluosilicate and 10-20 weight parts of calcite; the method comprises the following steps of: mixing the raw materials and sending the mixture in a glass furnace; melting the mixture as glass melt at the temperature of 1400-1600 DEG C; sending the glass melt into a material supply machine by a material supply passage; sending the glass melt into a forming machine for forming by the material supply machine; sending the formed product into an annealing furnace for annealing; subsequently inspecting the quality of the annealed product; returning the unqualified product to the raw material; and conducting the operations of applique, enamel firing and steeling to the qualified product so as to prepare the finished products. Compared with the prior art, the method has the advantages of low expansion heat-resistance performance, high hardness, being not easy to be scraped or cracked, environmental protection and the like.

An electromagnetic induction heating boiler heat conductor comprises a heat conductor shell, separation plates, a water delivery pipe, a positioning flange, a fastening flange, a limiting ring, a limiting flange and a positioning sleeve. The interior of the heat conductor shell is connected with the separation plates, the separation plates are arranged on the two sides of the heat conductor shell,an oil storage chamber is formed between the separation plates, water storage chambers are formed between the outer sides of the separation plates and the heat conductor shell, the two sides of the water delivery pipe are connected with the separation plates, the middle of the water delivery pipe is arranged in the oil storage chamber, the water delivery pipe is wavy, water delivery openings arearranged in the two ends of the water delivery pipe and penetrate through the separation plates, the outer sides of the water delivery openings are sequentially connected with the positioning flange and the fastening flange through threads, the positioning flange is connected with the inner sides of the separation plates, the fastening flange is connected with the outer sides of the separation plates, and the positioning flange and the fastening flange are clamped on the separation plates.

The invention discloses a winglet connecting device for an aviation aircraft. The device comprises a wingtip support and wingtip connecting units, wherein each wingtip connecting unit comprises an embedded block, a connecting rod and a holddown spring; the wingtip support adopts a half-cylinder body; the wingtip support is fixed on a wing end through a plane of a side part on one side of the half-cylinder body; a plurality of grooves used for mounting the wingtip connecting units are formed in a cylindrical surface on the other side of the half-cylinder body; a non-circular embedded block groove is formed in one side wall surface in a groove; a blind hole is formed in the other side wall surface in the groove; the embedded block can be clamped in the embedded block groove in a matching manner; a plurality of dividing plug sockets uniformly distributed along a circumference are formed in the outer end surface of the embedded block; one end of the connecting rod is used for being connected with a winglet; one side surface of the other end part of the connecting rod forms a plane; a plug is arranged on the other side surface of the other end part of the connecting rod; one end of thehold-down spring is positioned in the blind hole; the other end of the hold-down spring is propped against the plane on one side of the connecting rod. The device is small in occupied space and low inweight and has more adjustable angles.

The invention discloses an air conditioner indoor unit capable of inhibiting a gap between a baffle plate and a housing under the closed state of the baffle plate. An exhaust opening of the air conditioner indoor unit is provided with a first baffle plate (13). The first baffle plate (13) is connected with a shaft (80) disposed on a rear side by arms (61,62,63). The right side of the shaft (80) is provided with a motor, and can rotate under the driving of the motor along with the first baffle plate (13). The arms (61,62,63) are respectively disposed on the right end part, the central part, and the left end part of the first baffle plate (13).The arms (61,62,63) are disposed on the shaft (80) in a staggered manner along the rotating direction of the closing motion of the first baffle plate (13).

A novel back door hinge assembly comprises a back door hinge press-fitting bolt, wherein the back door hinge press-fitting bolt penetrates in the upper surface of a back door hinge fixing seat, and is pressed in the back door hinge fixing seat; the head of the back door hinge press-fitting bolt is fixed with the upper surface of the back door hinge fixing seat in a spot welding manner; the back door hinge press-fitting bolt penetrates in a back door hinge gasket; the back door hinge gasket is adhered to the lower surface of the back door hinge fixing seat; an inclined surface of a back door hinge swinging arm is arranged on the upper surface of the back door hinge fixing seat; back door hinge anti-attrition bushes are respectively arranged on two sides of the back door hinge fixing seat; a back door hinge connecting shaft sequentially penetrates in the back door hinge anti-attrition bushes with the symmetric structures, the back door hinge fixing seat and the back door hinge swinging arm and then is fixed in a riveted manner; the back door hinge anti-attrition bushes are made of powder metallurgy anti-attrition materials; the wall thickness of the back door hinge anti-attrition bushes is 2mm; and the back door hinge gasket is made of an asbestos-free material. The novel back door hinge assembly is reasonable in structure, and is beneficial to adjustment on gaps of a door of a vehicle and water leakage prevention. Moreover, the novel back door hinge assembly is applicable to a minibus.

The invention discloses a flaky inorganic filler heavy-duty anti-corrosion epoxy composite coating with a multi-layer structure, and relates to the technical field of anti-corrosion coatings. The heavy-duty anti-corrosion epoxy composite coating is prepared from a component A and a component B according to a mass ratio of 3:(1.0-1.4). The component A is prepared from the following raw materials in parts by weight: 55 to 68 parts of bisphenol A type epoxy resin E44, 23 to 29 parts of butyl glycidyl ether, 0.5 to 0.8 part of graphene, 6 to 15 parts of flaky inorganic filler, 2 to 6 parts of aerogel nano powder and 0.35 to 0.55 part of a de-foaming agent. The component B is a T31 curing agent. According to the invention, the sheet-shaped inorganic filler and the aerogel nanopowder are added into the epoxy resin, and the flaky inorganic filler and the aerogel nanopowder can coexist in the epoxy resin and can be laid layer by layer in the epoxy resin to form a compact elastic barrier, thus the external stress resistance of the epoxy composite coating is improved, and the coating does not easily generate gaps or cracks, so that the structural integrity of the coating can be maintained, and the epoxy resin has excellent corrosion resistance.