53results about How to "Quick detachment" patented technology

The invention relates to devices for attaching or detaching a sound suppressor or an auxiliary device to a firearm. The device has a mount body that is attached by threads to a muzzle attachment device that is attached to the muzzle of a firearm. The muzzle attachment device has external mounting threads, a gas seal, an engagement surface, and a locking surface on the rear of the muzzle attachment device. The engagement surface simultaneously provides an alignment function and a forward locking function. A rotating collar is attached by threads to the mount body, and a locking spring with locking surfaces is attached to the mount body by threads, with the locking spring fitting inside the rotating collar. The rotating collar, when rotated, forces the locking spring and its locking surfaces downwards against the rear locking surface on the muzzle attachment device, providing force against the rear locking surface and securing the sound suppressor or auxiliary device to the muzzle attachment device through the combination of the forward engagement surface and the rear locking surface.

The invention relates to a multi-stage sand blocking device for water and soil conservation. The multi-stage sand blocking device comprises a sand blocking fence, a winding device, a positioning sand-proof net and a load-bearing bottom frame, the winding device is arranged at the lower end of the sand blocking fence, the positioning sand-proof net is wound around the winding device, and the load-bearing bottom frame is arranged at the rear end of the sand blocking fence. The difficult problems that an existing sand blocking fence is usually a reinforced concrete hard wall, the wall partitionsand intercepts silt on the two sides, in the long run, a large amount of the silt located on the upper side of the wall is prone to being accumulated at the edge of the wall, the effect of water and soil conservation is difficult to achieve, the silt accumulated at the wall corner has a certain weight, the wall structure is prone to being damaged to a certain extent due to long-time accumulation,and the existing sand blocking fence is usually poured on a river slope, is cumbersome in installation, and cannot be dismantled can be solved.

The present invention is to provide a mechanism for rapidly installing and detaching a hard disk, comprising a U-shaped handle pivotally mounted at both sides of the hard disk and having a latch in a forward side, and a frame for receiving the hard disk having an elastic member in a forward end and a projection on a side of the elastic member for engaging with the latch while the handle being pivoted down into a gap between the hard disk and the frame, enabling the sides of the hard disk to urge against the frame and the handle and be firmly installed in the frame. While detaching the hard disk from the frame, it only needs to push the projection outward until being disengaged from the latch and then pull the handle upward to remove the hard disk from the frame.

The invention belongs to the technical field of washing machinery, relates to a washing machine with a replaceable inner tub for use at home or public laundry sites, and solves the problems that, forinstance, the sharing of a laundry tub leads to cross infections and secondary pollution. The washing machine is characterized in that an inner tub positioning shaft sleeve is fixed to the bottom of an inner tub, an inner tub positioning shaft is fixed to an engaging-disengaging device and is in clearance fit with the same so that accurate guidance and positioning are ensured for the butt joint ofthe inner tub and the engaging-disengaging device, the engaging-disengaging device is provided with a washing shaft and a dewatering shaft, the top of the washing shaft is provided with a washing shaft quick adapter lower part, the bottom of a pulsator shaft is provided with a washing shaft quick adapter upper part that is suitable for quick engaging or disengaging, a dewatering transmission plate upper part and a dewatering transmission plate lower part are rotationally connected in fastened manner and are mutually clamped and locked through upper and lower concave-convex grooves, and separation of the dewatering transmission plate upper part and the dewatering transmission plate lower part during rotating is avoided. The washing machine is simple in structure, has the reliable principle, is well applicable and has good economic benefit and a promising market prospect.

A removable ground coffee filler assembly for espresso machine porta-filters, for attachment to commercially available porta-filters as an add-on item, having a filler with a conical and straight sections, and one adapter to attach the filler to the porta-filter. The adapter is secured to the filler by means of a press fit and to the porta-filter by means of multiple spring clip prongs.

The invention provides a waterproof lift shaft safety door. The waterproof lift shaft safety door is suitable for a lift shaft of a steel structure and is in an outdoor state, the normal closed state between the lift shaft safety door and the shaft of the steel structure can be guaranteed, external water cannot enter the lift shaft through the shaft safety door, components in the lift shaft and functions of lift electric components are guaranteed to be normal, the normal service life of a lift is guaranteed, and the lift maintenance cost is lowered. The waterproof lift shaft safety door comprises a lift shaft wall, and a shaft safety door opening is formed in the corresponding portion of the lift shaft wall. The waterproof lift shaft safety door is characterized in that a door frame is fastened onto the lift shaft wall through expansion bolts, one side of a door plate is installed on the corresponding side of the door frame through pin hinge structures, a waterproof strip is arranged at the position, facing the end face of the door frame, of the inner end of the door plate, and the waterproof strip is tightly attached to the door frame in the state that the door plate and the door frame are closed.

This invention provides a quick detaching device for handgun tactical light which includes a tactical light base, two locking members correspondingly disposed on two sides of a top end of the tactical light base, sliding members and a pressing mechanism; a sliding slot is correspondingly mounted in a middle part of each of the sliding members; the sliding members are respectively mounted in the sliding slots; a through slot which passes through the tactical light base is provided in the tactical light base; a stopping plate is provided in a middle part of the through slot; the pressing mechanism is mounted in the through slot and corresponds to the stopping plate. This invention can quickly mount and detach the tactical light without the help of tools and great effort, and is convenient to use.

The invention relates to the field of indoor decoration, in particular to a housing suspended ceiling structure, comprising suspending rods, main keels, triangular keels and square plates. Each triangular keel comprises a main sheet and partitions, the main sheet is bent into a main structure with triangular section, the bent sides of the main sheet are close to each other and form a clamping opening, the partitions are positioned in the main sheet and are perpendicular to a bottom plate facing the clamping opening, the end of each partition close to the clamping opening is positioned in the clamping opening, and the partitions divide the clamping opening into a first clamping opening and a second clamping opening. Upon mounting of the square plates, clamp plates clamped to the two squareplates inside each triangular keel are clamped in respectively from the first and second clamping openings, so that the clamp plates of the two square plates can be separated by the partitions and dotnot interfere each other. Therefore, during mounting and adjusting of one square plate, the position of the other square plate is never affected.

The invention relates to a method for realizing fast disassembling and assembling of threaded connection, which comprises an internal thread and an external thread that are matched with each other, wherein thread through grooves are arranged on the matched surface of the threads axially; and the thread through grooves are peripherally and uniformly arranged at intervals with the remaining thread parts. The thread through groove is formed by removing part of threads due to axial processing on a basis of the matched surface of the original threads. The thread through grooves are preferably arranged in the opposite angle, and each thread through groove is 1/4 of the periphery of the matched surface of the threads. Each thread through groove can be made into other sizes, so long as the thread through grooves can be arranged peripherally and uniformly at intervals with the remaining thread parts. With the arrangement of the thread through grooves, the fast disassembling and assembling of the internal thread and the external thread can be realized, so as to realize fast connection and detachment of two parts or components.

The invention discloses a building board with fireproof and waterproof functions. The building board comprises a board body, wherein convex plates are arranged on the two sides of the board body; a groove is formed in one side of each convex plate; a clamping plate is slidably connected in each groove; a first spring set is connected between each clamping plate and the inner wall of the corresponding groove; a first vertical plate and a second vertical plate are arranged on one side of the board body. The first vertical plate and the second vertical plate are arranged in parallel and are bothperpendicular to the board body. A first rotating groove and a second rotating groove are formed in the sides, close to each other, of the first vertical plate and the second vertical plate correspondingly. An adaptive rod and a bidirectional threaded rod are rotationally connected into the first rotating groove and the second rotating groove correspondingly, a first sliding groove is formed in the side, close to the adaptive rod, of the bidirectional threaded rod, the end, away from the first vertical plate, of the adaptive rod is slidably connected in the first sliding groove, and a second spring set is connected between one end of the adaptive rod and the inner wall of the first sliding groove. The board body can be installed more flexibly, the fixing effect is good, and splicing between the board bodies is more convenient.

The invention discloses silencing equipment with loudness monitoring and grading treatment functions. The silencing equipment with loudness monitoring and grading treatment functions comprises a first half shell and a second half shell, fixing rods are fixedly connected to the inner wall of the first half shell and the inner wall of the second half shell correspondingly, and a silencing barrel is fixedly connected between the two fixing rods. The inner wall of the silencing barrel is fixedly connected with a first sound absorption partition plate, a second sound absorption partition plate, a silencing hole plate and a sponge sound absorption plate from top to bottom. According to the silencing equipment, the first sound absorption partition plate and the second sound absorption partition plate are arranged, and the three partition plates are arranged in a crossed mode, so that a sound circulation path is longer, and a better silencing effect is achieved. Secondary silencing treatment is conducted when sound passes by arranging the silencing hole plate, the sponge sound absorption plate and sound absorption cotton balls, so that the silencing effect of the equipment is further improved. A sound detector and a display screen are arranged, so that the sound can be correspondingly monitored, and the noise pollution degree in the surrounding environment can be known.

A blind cord guide seat includes a connection seat fixed under a blind rail and a cord restriction seat connected under the connection seat. The cord restriction seat includes a fixing section and a latch section. An outer face of each of the fixing section and the latch section is formed with a belt guide channel. The top end of the fixing section is formed with threaded holes for connecting with the connection seat by screws. When assembled with a cord winding device, an external force is applied to the latch section to outward bias the latch section to provide an opening for placing the cord winding device through the opening into the cord restriction seat. An iron-made hook bracket and a latch body are securely disposed at the upper end of the latch section for securely latching the latch section with the connection seat.

A food cooker includes a heater; an outer container, which is removably placed on the heater and for accommodating a liquid, wherein the heater heats the outer container; an inner container, which is removably accommodated within the outer container and has multiple through holes allowing the liquid to flow between the outer container and the inner container, wherein the inner container is for accommodating a food; a cover disposed on the outer container; a power source, which is disposed on the cover and has a driving shaft; and a stirrer, which is detachably and rotatably placed in the inner container, is detachably coupled to the driving shaft, and is rotated by the driving shaft to stir the food and the liquid.

A detachable rod-like decorative lighting, comprises a rod and a fancy lamp detachably connected to the top of the rod, wherein the rod comprises an outer pipe and an inner shell adapted to be inside the outer pipe; the outer pipe is a single body or consists of at least two pipes integrally formed with one another by axial connection; the inner shell is provided at the top thereof with a coaxial hole; the fancy lamp is provided at the bottom thereof with a plug connected to the top of the outer pipe by insertion and the plug is provided with a coaxial column corresponding to the coaxial hole for electric connection; and the outer pipe is provided at the top and the bottom thereof with connecting structures, respectively, for quickly matching and being fixed to the fancy lamp and the inner shell.

The invention belongs to the technical field of hardware, and particularly relates to bathroom anti-corrosion hardware which comprises a hardware plate, a first through hole rod and a solid rod, the first through hole rod and the solid rod are fixedly connected to the hardware plate, the upper end and the lower end of the solid rod are fixedly connected with a second through hole rod and a first spring, and the first spring is designed to be located in the second through hole rod. A limiting inserting rod is inserted into the inner wall of the second through hole rod, a mounting frame is fixedly connected to the periphery of the solid rod, a through groove is formed in the surface of the mounting frame, an I-shaped sliding block is slidably connected to the inner wall of the through groove, a connecting rod is fixedly connected to the surface of the I-shaped sliding block, and a vertical rod is fixedly connected to one end of the connecting rod. And round holes are formed in the surfaces of the upper and lower ends of the mounting frame. Through the arrangement of the first through hole rod, the limiting insertion rod and the first spring, the solid rod can drive the mounting frame and the hardware plate to be quickly disassembled and assembled, so that the hardware plate can be quickly disassembled and assembled when a corresponding fault occurs in the later period.

The invention provides a concrete bridge supporting column construction operation method. The concrete bridge supporting column construction operation method adopts the following equipment for construction, the equipment comprises a lower mold, an upper mold, a connecting piece and a demolding device, the lower end of the lower mold is installed on the existing ground, the upper mold is arranged above the lower mold, the connecting piece is mounted between the upper end of the lower mold and the lower end of the upper mold, and the demolding device is arranged at the left side of the upper mold. Through mutual cooperation of a first motor, a rotating shaft, a rotating rod and a rolling wheel, the rolling wheel can synchronously rotate on the edge of a disc, the rolling wheel, an L-shaped column, smf a hinge rod and a lug base are matched with one another, so the lug base pulls the arc-shaped block to disassemble the upper mold, the function of rapidly disassembling the upper mold can be achieved without manual work, and then the efficiency of construction operation of the concrete bridge supporting rod and the safety degree of the construction process can be improved.