56results about How to "Won't loosen and fall off" patented technology

The invention discloses a rolling brush work lifting and swinging connecting frame device used on a roadside stone cleaning machine. A side vertical plate assembly is vertically welded with a main connecting plate; a main sliding vertical plate assembly is in sliding connection with the inner side wall of the side vertical plate assembly through a side telescopic oil cylinder; one end of a lifting and swinging oil cylinder is connected with the upper plane of a horizontal swinging arm assembly, and the other end of the lifting and swinging oil cylinder is connected with a limit sliding mechanism; one end of an auxiliary pull rod is hinged to a limit groove plate, and the other end of the auxiliary pull rod is hinged to the main sliding vertical plate assembly; one end of an auxiliary tension spring is hinged to the limit sliding mechanism, and the other end of the auxiliary tension spring is connected with the front end of a pre-tightening tension spring through a steel wire rope; the tail end of the pre-tightening tension spring is connected with the side vertical plate assembly; a cleaning working device connecting plate is hinged to the main sliding vertical plate assembly through a lifting and swinging connecting rod. The device is mounted on the roadside stone cleaning machine, so that a working device of the roadside stone cleaning machine can realize the extension and the lifting from the side surface of a main vehicle frame; meanwhile, the steel wire rope for swinging the tension spring is always in a stretched state to achieve the purposes that the working device efficiently works, and the cleaning effect is good.

The invention discloses a mechanical anti-loose compacting device, which mainly consists of a pressing block (1), an anti-loose plate (2), a compacting screw (3), a compacting nut (4) and the like, and is characterized in that the middle part of the pressing block (1) is provided with a threaded hole, the outer edge of the pressing block (1) is fixedly provided with the anti-loose plate (2), and the compacting screw (3) is used for compacting a compacted object (5) and the pressing block (1) through the anti-loose plate (2) via the compacting nut (4). Due to the adoption of the structure, an anti-loose goal is achieved due to the fact that the part, contacted with the threaded hole in the anti-loose plate, of the compacting nut and the compacting screw is processed into a thread-free cylindrical surface, and the compacting screw is prevented from loosening and falling off through two anti-loose insurance measures, so that the technical goals of convenience, safety and reliability are realized.

The invention provides lifting hooks for a plate type catalyst unit block, belonging to the mechanical field and relating to a lifting tool. The aim of the invention is that hook tongues are inserted in spaces among catalyst plates arranged in a unit frame and are used for clamping the folding edges at the end part of the unit frame for lifting. A lifting beam is fixedly arranged on a lifting frame; the lifting hooks are connected onto the lifting frame by shafts; the outer sides of the lifting hooks are provided with lifting hook body protection grooves fixedly arranged on the lifting frame; the bottom ends of the lifting hooks are provided with the hook tongues; a rope wheel is connected on a protection frame by a shaft; the protection frame is fixedly arranged on the lifting beam; the lifting hooks are provided with lock sleeve clamping grooves; a return spring is hung on a hook seat on the lifting hooks by hangers; and the lifting hooks and the lifting hook body protection grooves are sleeved with hook tongue locking sleeves. According to the lifting hooks for the plate type catalyst unit block provided by the invention, the lifting process is stable, firm and safe; as a reserved space is omitted, the detention vortex of smoke in the reserved space is reduced, and the blockage caused by dust accumulation is avoided; the lifting hooks for the plate type catalyst unit block also can be applied to lifting of special articles with limited overall sizes; in the past, when being lifted in a workshop, barrel-shaped articles with smooth outlines are frequently bound by ropes for horizontal lifting or oblique lifting, so that the traditional operation is time-consuming and unsafe; however, the lifting hooks of such a structure are safe and fast to apply.

The invention discloses an automatic-liquid-supplementing fruit fly trap which comprises a trapping agent container comprising a main container and a supplemented liquid container. A window for fruitflies to fly in is arranged on the upper portion of the main container, an automatic liquid supplementing device is arranged at the bottom of the main container and comprises a shell fixed at the bottom of the main container, the shell comprises an upper cavity and a lower cavity, a liquid incoming joint is arranged on the side face of the lower cavity, the upper cavity and the lower cavity are communicated through a vertical tube hole, a liquid discharging hole is formed in the upper cavity, a buoyancy block capable of moving up and down is arranged in the upper cavity, a pull rod matched with the vertical tube hole is connected on the buoyancy block, and an end cap is arranged at the lower end of the pull rod; a liquid discharging tube connected with the liquid incoming joint is arrangedon the lower portion of the supplemented liquid container. Through a combined structure of the main container, the supplemented liquid container and the automatic liquid supplementing device, a function of the fruit fly trap in automatically supplementing a trapping agent is realized, and the technical problem that existing fruit fly traps need manual supplementing of the trapping agent is solved.

The invention discloses a blood slice bracket carrying seat. The blood slice bracket carrying seat comprises a carrying seat body and a plurality of flat-bottom main grooves which are formed in the front faces of the carrying seat body in parallel, wherein one ends of the main grooves depart from the bottom faces of the grooves to be provided with front reversed buckles in a suspension manner; and the other ends of the main grooves depart from the bottom faces of the grooves to be provided with tail convex buckles in the suspension manner. The blood slice bracket carrying seat can be provided with a plurality of blood slice brackets in a clamping manner to realize experimental tests of filter paper dry blood slices in batches, so as to realize the effect of automatically and rapidly detecting. The invention further discloses a blood slice bracket assembly for automatically and rapidly detecting the filter paper dry blood slices.

The invention provides an anti-disengaging detachable material returning air cap for a circulating fluidized bed boiler. The situations of loosening and disengaging of an air cap head caused by the impact of high-pressure head fluidized air are avoided, the air cap head can be conveniently loosened and tightened after being firmly clamped through a wrench, and circulating materials of the whole boiler can normally return. The anti-disengaging detachable material returning air cap comprises the air cap head and an air cap connecting pipe, wherein the lower end of the air cap head is in threaded connection with an upper joint of the air cap connecting pipe, and is arranged on the upper joint of the air cap connecting pipe in a sleeving manner; an air outlet is formed in the middle annular surface of the air cap head; a central hole of the air cap connecting pipe is communicated with a cavity formed by combining the air cap head and the air cap connecting pipe; the cavity is communicated with the air outlet. The anti-disengaging detachable material returning air cap is characterized in that an outer boss structure is arranged in the middle of the air cap connecting pipe; the upper end surface of the outer boss structure is of a planar structure; a spring washer is pressed between the bottom end surface of the air cap head and the upper end surface of the outer boss structure; two sides of an outer ring surface, corresponding to a threaded part, of the air cap head are machined to form the planar structures.

The invention discloses a panel chamfering machine, which comprises a frame, a driving mechanism and a sliding positioning device. A beam 1 is arranged at the lower end of the frame, and a beam 2 is arranged in the middle. Bearings are respectively arranged on the beam 2 at a certain distance. Seat assembly 1 and bearing seat assembly 2, the upper end of the frame is provided with an upper frame, and the upper frame is provided with two parallel "V"-shaped guide rails, the driving mechanism is connected with the beam one on the one hand, and It is connected with the bearing seat assembly 1 and the bearing seat assembly 2, the sliding positioning device is connected with the "V" guide rail, the driving mechanism is composed of a motor and a pulley shaft, and the output shaft of the motor is provided with a large pulley. The pulley shaft is provided with a small pulley, and the end of the pulley shaft is provided with a thread, and a disc saw is set on the pulley shaft, and a sawdust baffle is provided on the side of the upper frame, so that multiple wooden panels can be reversed at one time. Corner operation improves the processing efficiency of wooden panels with accurate positioning and high chamfering precision.

The invention relates to a novel pressure enclosing nut device which comprises a pressure enclosing nut and screws, wherein the pressure enclosing nut is provided with grooves in the circumference direction; and the end surface of the pressure enclosing nut is provided with two screw holes. Compared with the prior art, the pressure enclosing nut device has the advantages of bearing certain pressure in a long time and maintaining not to be loose and the like.

The invention discloses a detachable glass window frame, which has a window frame. Limiting baffles are arranged around the inside of the window frame near the front, and a limiting frame is arranged inside the window frame. The limiting frame Located on the back of the limit baffle, there is a space between the top and bottom of the window frame, and there is a space between the front and the limit baffle; the left and right sides of the limit frame near the top are fixed with outward convex The pin shafts are raised, the position corresponding to the pin shafts on the window frame is provided with guide chute, the pin shafts on the left and right sides of the limit frame are located in the corresponding guide chute respectively, and the front of the limit frame is provided with The pressing plate corresponding to the limit baffle. This kind of detachable glass window frame can realize the installation and disassembly of the glass through the limit frame. The replacement cost of glass is reduced, and the replacement efficiency is improved.

The invention discloses an improved RF coaxial connector housing, the structure of which includes a base, a screw sleeve, a supporting plate, a slider, clamping blocks, a housing cover, a rubber ring,a collision preventing column, clamps and a connecting groove. Each clamp is composed of a positioning recessed hole, a connecting rod, a clamping plate, a rivet, a spring leaf and a clamp groove. The improved RF coaxial connector housing of the present invention is provided with the clamps. The clamp and the connecting groove are fixed together by the positioning recessed hole, then the clamp groove is abutted against the clamping block, and the spring leaf is pressed to firmly fasten the housing cover and the connecting groove. The firmness of the equipment is improved, the improved RF coaxial connector housing cannot loose or dislocate during vibration, the RF coaxial connector is enabled to be easily disassembled, the time is saved, and the sealing effect is good.

The invention relates to a self-tight-sealing high voltage introduction bar, belonging to the technical field of electric desalting and electric dewatering facilities in crude oil pretreatment. The self-tight-sealing high voltage introduction bar comprises a bar cap and a bar body, wherein a screw plug, a cable, a high-voltage-resistant heat-shrinkable pipe, a liner and a liner sleeve are arranged in the bar cap and bar body. The structure also comprises a self-tight seat, a connecting flange, a sealing element, a connecting bolt and a nut, wherein the connecting flange, sealing element and connecting bolt are matched with the seat. The high-voltage-resistant heat-shrinkable pipe is wrapped outside the cable to effectively prevent the surface climbing arc ablation on the cable surface due to dielectric pollution. The lower end of the bar body is provided with an umbrella-shaped structure to increase the insulation distance on the lower part, thereby avoiding the ablation of the electrode introduction bar cap in the long-term electrical discharge arc process, and further prolonging the service life. The self-tight seat, connecting flange and sealing element are combined to form the self-tight sealing structure of which the sealing effect is suitable for high-voltage vessels, thereby preventing the high-voltage vessels from losing effects due to sealing leakage in the operation process.