47results about How to "No prolapse" patented technology

The invention relates to a handcart type fire hose recovery device, belonging to the technical field of fire-fighting equipment and comprising a base, a water hose joint fork, a travelling mechanism, a manual traction mechanism and a transmission mechanism, wherein the water hose joint fork is provided with a joint fork shaft, is rotatably arranged on the base by the joint fork shaft and is positioned on one side of the upper end of the base; the travelling mechanism is fixedly connected with the bottom of the base; the manual traction mechanism is equipped on the base; the transmission mechanism consists of a first transmission wheel, a second transmission wheel and a transmission belt and is used for driving the water hose joint fork to rotate; the first transmission wheel is fixed on the joint fork shaft; the second transmission wheel is fixedly arranged on the travelling mechanism; and one end of the transmission belt is sheathed on the first transmission wheel, and the other end of the transmission belt is sheathed on the second transmission wheel. The handcart type fire hose recovery device has the advantages of being capable of reducing the working intensity of fire fighters, avoiding the loosing or spinning phenomenon, and having simple whole structure, labor-saving movement and no condition that the water hose generates resistance to water in the hose reeling process.

The invention provides a testing apparatus for a service life of a load of a valve execution mechanism and a using method thereof. The testing apparatus comprises a rack, a rotating mechanism and a loading mechanism. The rack is supported between a top plate and a bottom plate by support posts. A testing plate covers the top plate. Rotating shafts are installed in bearings between the top plate and the bottom plate and the upper ends of the rotating shafts pass out of the top plate and a mounting plate. More than one rotating plate is installed on the rotating shafts horizontally and rotates with the rotating shafts. The loading mechanism includes friction plates and hydraulic systems; through holes are formed in the friction plates and the friction plates sleeve the support posts through the through holes. One friction plate is arranged below each rotating plate; and the friction plates are separated by sleeving rings arranged on the support posts. The hydraulic systems are installed on the bottom plate and mandrils of the hydraulic systems support the bottom friction plates; under pushing of the mandrils, upward contact with the rotating plates is realized and the last friction plate is pushed upwardly by the sleeving ring and is in contact with the rotating plate arranged on the friction plate; and the rotating plates and the friction plates in close contact with the rotating plates respectively generate friction and the friction forces are transformed into torques by the rotating shafts, thereby realizing testing of the service life of the load of the valve execution mechanism.

The invention relates to the field of architectural decoration, and provides a simple structure, convenient and fast wiring installation, time-saving and labor-saving, neat and consistent pavement, good quality integrated quick-installation wire slot and a method for wiring by using the quick-install wire slot to solve the problem of The cable laying process in the prior art is cumbersome, time-consuming and labor-intensive, and the cables are easy to come out and affect the normal construction. It includes the wall and the U-shaped slot base fixed on the wall surface. The U-shaped The opening of the U-shaped card slot base faces outward, and the elastic cable management ring is elastically clamped in the opening of the U-shaped card slot base. The cable is pressed into the notch, and the edge of the elastic cable management ring corresponding to one side of the cable press-in notch extends inward and elastically abuts against the corresponding elastic cable management ring on the other side of the cable press-in notch.

The invention discloses a spherical washer and a fixture for grinding spherical washers. An outer spherical surface of the spherical washer is provided with a narrow groove along the diameter direction; the fixture comprises a fixture body with an outer spherical surface, and a plurality of positioning pins are circumferentially and evenly distributed on the top of the outer spherical surface of the fixture body. The fixture is characterized in that the top of each positioning pin is provided with a transverse groove, and the transverse grooves are arranged in the top circumferential direction of the outer spherical surface. During grinding operation, the spherical washers arranged on the outer spherical surface of the fixture body are bound by a rope, the rope surrounds the outer spherical surface of the fixture body for a circle, the rope passes through the narrow grooves and the transverse grooves, one end of the rope is fixed on the fixture body, the other end of the rope is connected with the outer circle of a rotating ring, the rotating ring is screwed on a screw, a locknut is arranged on the outer end surface of the rotating ring, and the locknut is also screwed on the screw. The spherical washer provided by the invention can be rapidly clamped and reliably fixed on the fixture disclosed by the invention, consequently, the spherical washers can be conveniently ground by machining equipment, and working efficiency is increased.

The invention provides an artificial vertebral body fixing system, which comprises an artificial vertebral body main body arranged between adjacent human physiology vertebral bodies; two longitudinal connecting rods respectively arranged on two sides of spines of the human physiology vertebral bodies; cross connection nails connected between the artificial vertebral body main body and the longitudinal connecting rods; a connecting part connected onto the artificial vertebral body main body, and is provided with self-tapping through holes or threaded holes. When the connecting part is provided with the self-tapping through holes, the cross connection nails are screwed in the self-tapping through holes so as to be self-taped to form thread structures; when the connecting part is provided with the threaded holes, the cross connection nails are matched with the threaded holes. The technical scheme provided by the invention effectively solves the problem of poor artificial vertebral body stability in the prior art.

The invention discloses an anti-loosening structure of an M12 connector. With the anti-loosening structure, a problem of connector loosening or even shedding in a continuous vibration state because of lack of an anti-loosening structure of the existing M12 connector can be solved. The anti-loosening structure comprises a connecting nut and a shell with a straight tube and a screwed tube; and the straight tube and the screwed tube are connected. A connecting front end of the shell is a threaded end; connecting threads are formed at one end of the inner side wall of the connecting nut; and the connecting nut sleeves the threaded tube by the connecting threads. Besides, a mounting groove is formed in the other end of the inner side wall of the connecting nut and an elastic component is installed in the mounting groove. On the basis of the structure, a loosening or even shedding phenomenon of a connector can be avoided; and thus the continuity and reliability of the M12 connector function are guaranteed.

The invention discloses a fixture for a grinding spherical surface gasket. The outer spherical surface of a grinded spherical surface gasket is provided with a narrow groove along a diameter direction. The fixture is characterized in that the fixture comprises a fixture body, wherein the top circumstance of the outer spherical surface of the fixture body is evenly provided with a plurality of locating pins; the top of each locating pin is provided with a lateral groove; during grinding work, the spherical surface gaskets arranged on the outer spherical surface of the fixture body are tightened by a belt rope; the belt rope passes through the narrow groove and the lateral grooves; one end of the belt rope is fixedly arranged on the fixture body, and the other end of the belt rope is connected with the outer circle of a rotation ring; the rotation ring is rotatably arranged on a shaft lever; the shaft lever is fixedly connected with a flange plate; the outer side of the rotation ring is provided with a fixed ring; the fixed ring is fixedly arranged on the shaft lever; a torsion spring is arranged between the rotation ring and the fixed ring; one end of the torsion spring is inserted into the rotation ring, and the other end of the torsion spring is inserted into the fixed ring. The fixture is used for the grinding processing of the outer spherical surface of the spherical surface gasket, the quick clamping and the reliable fixing of the spherical surface gasket can be realized, and working efficiency is improved.

The invention discloses an outer spherical clamp for grinding spherical gaskets. A narrow groove is formed in an outer spherical surface of each ground spherical gasket along the diameter direction; the clamp is characterized by comprising a clamp body, wherein a plurality of positioning pins are uniformly arranged on the circumference of the outer spherical surface of the clamp body; transverse grooves are formed in the tops of the positioning pins; in a grinding work process, the spherical gaskets arrayed on the outer spherical surface of the clamp body are tightened by a belt rope; the belt rope passes through the narrow grooves and the transverse grooves; the outer side end face of the clamp body is fixedly connected with an end cover; a movable plate and an adjusting screw rod are arranged on the outer side end face of the end cover; the adjusting screw rod is in threaded connection with the end cover; a rod end of the adjusting screw rod is provided with a hand wheel; the movable plate is rotationally arranged on the adjusting screw rod to do axial movement along with the adjusting screw rod; the two ends of the belt rope penetrate through the outer spherical surface of the clamp body to enter an inner hole of the clam body, and then penetrate through the end cover to be connected with the two centrally symmetric ends of the movable plate. The outer spherical clamp for grinding the spherical gaskets is used for grinding and machining the outer spherical surfaces of the spherical gaskets so that the rapid clamping and reliable fixation of the spherical gaskets can be realized and the working efficiency is improved.

The invention relates to a yarn bobbin package which comprises a plurality of lining plates. The upper surface of each lining plate is provided with a plurality of first grooves, and the lower surface of each lining plate is provided with second grooves which are identical with the first grooves in number and in one-to-one correspondence with the first grooves. The first grooves are communicated with the second grooves in a one-to-one vertical alignment mode. Each lining plate is provided with through holes identical with the first grooves in number. The lining plates are overlapped in sequence, yarn bobbins to be packaged are fixed between every two adjacent lining plates, the upper ends of the yarn bobbins to be packaged are embedded into the second grooves of the upper lining plates, and the lower ends of the yarn bobbins to be packaged are embedded into the first grooves of the lower lining plates, so that the whole package is formed. According to the yarn bobbin package, the defect that in a traditional mode, yarn bobbins collide with one another and consequently the yarn quality is affected due to the fact that the yarn bobbins deviate from positions in the transporting process is overcome; it is ensured that the yarn bobbins are firmly stored in the whole package, the packaging efficiency and the yarn bobbin transporting efficiency are improved, transportation losses are lowered, and the transportation cost is reduced; the yarn bobbin package is simple in structure and low in cost.

The invention relates to the technical field of driving motors, in particular to a motor capable of preventing a gear from falling off. The motor comprises a bearing plate, wherein a mounting structure is arranged on the bearing plate; the side surface of the mounting structure is connected with a connecting structure; a placing structure is arranged between the connecting structure and the bearing plate; a locking structure is arranged on the side surface of the connecting structure; moving structures are arranged on the two sides of the bearing plate; and a lubricating structure is arranged on the top side of the mounting structure; According to the invention, the gear is prevented from falling off through the mounting structure, and meanwhile, the gear is conveniently detached and replaced; through the connecting structure, the gear is driven, and the motor can be rapidly connected and detached; through the placing structure, the stability of the motor in a normal working state is guaranteed and the motor is allowed to be conveniently disassembled and assembled; the position of the motor is further fixed through the locking structure; the bearing plate is integrally moved or positioned through the moving structure; and the internal structure of the connecting block is conveniently lubricated through the lubricating structure.

The invention discloses a fixture for grinding the outer spherical surface of a spherical surface gasket. The spherical surface of a spherical surface gasket is provided with a narrow groove along a diameter direction. The fixture is characterized in that the fixture comprises a fixture body, wherein the top circumstance of the outer spherical surface of the fixture body is evenly provided with a plurality of locating pins; the top of each locating pin is provided with a lateral groove; during grinding work, the spherical surface gaskets arranged on the outer spherical surface of the fixture body are tightened by a belt rope; the belt rope passes through the narrow groove and the lateral grooves; the outer side end surface of the fixture body is fixedly connected with an end cover; the outer side end surface of the end cover is provided with a movable plate; the movable plate and the end cover are connected by a hinge pin; the hinge pin movably passes through the center hole of the movable plate to be fixedly connected to the end cover; compression springs are arranged between the movable plate and the end cover; two ends of the belt rope pass through the outer spherical surface of the fixture body to enter the inner hole of the fixture body and then pass through the end cover to be connected to two central symmetry ends of the movable plate. The fixture for the outer spherical surface is used for the grinding processing of the outer spherical surface of the spherical surface gasket, the quick clamping and the reliable fixing of the spherical surface gasket can be realized, and working efficiency is improved.

In a permanent magnet ring (1) formed by arranging a plurality of unit permanent magnets (21a, 21b, 21c . . . ), each of a plurality of the unit permanent magnets (21a, 21b, 21c . . . ) is formed in a circular cylindrical shape having a circular cross section, and a predetermined number of the unit permanent magnets are magnetically attracted each other so as to form a ring shape having a predetermined size, so that it is possible for the user to easily structure the permanent magnet ring (1) having a desired size, and it is possible to attach as many the unit permanent magnets as possible so as to be able to apply proper magnetic force lines to each part of the body.

The invention discloses a method for manufacturing a charging coil. The method comprises the following steps of: carrying out stamping operation on a copper foil, punching an arc-shaped copper wire with a spiral shape on the copper foil, and reserving a connecting material point between the arc-shaped copper wires, and connecting the arc-shaped copper wire and the copper foil body together; fixingthe arc-shaped copper wire on the copper foil, and fixing the arc-shaped copper wire and the copper foil body together; and cutting the connecting material points so that the arc-shaped copper wiresare connected to form a continuous spiral coil. The beneficial effect is that after the punching operation, the connecting point is left between the curved copper wires, and the connecting point is used to connect the arc-shaped copper wire with the copper foil body, thereby preventing the arc-shaped copper wire from prolapsed in a state in which the copper foil is suspended. Before the connectingpoint is cut off, the arc-shaped copper wire on the copper foil is fixed without prolapse. After the connecting point is cut off, the arc-shaped copper wire can be completely connected to form a continuous spiral coil, thereby manufacturing the charging coil.

The invention discloses an outer spherical surface grinding fixture for a spherical gasket. The outer spherical surface of the spherical surface gasket is provided with a narrow groove. The outer spherical surface grinding fixture is characterized by comprising a fixture body, wherein a plurality of positioning pins are uniformly distributed on the top circumference of the outer spherical surface of the fixture body; the tops of the positioning pins are provided with transverse grooves. During grinding work, the spherical gasket distributed on the outer spherical surface of the fixture body is tied with a rope, and the rope passes through the narrow groove and the transverse grooves; the outer side end face of the fixture body is fixedly connected with an end cover; the outer side end face of the end cover is provided with a rotary plate and a check block; the rotary plate and the end cover are connected with each other through a pin shaft; the pin shaft movably passes through a center hole of the rotary plate, and is fixedly connected to the end cover; the outer side end face of the rotary plate is provided with a spring; the check block is fixed on the end cover; the two ends of the rope pass through the outer spherical surface of the fixture body to enter the inner hole of the fixture body, and pass through the end cover to be connected to the rotary plate. The outer spherical surface grinding fixture is applied to grinding of the outer spherical surface of the spherical gasket, rapid clamping and reliable fixing of the spherical gasket can be realized, and the working efficiency is increased.

The invention discloses an auxiliary installation device of a high-rise fire life saving machine for fire life saving. The auxiliary installation device comprises an installation seat, a supporting structure, an installation sleeve, a supporting rod, a connecting sleeve, a guide wheel, a limiting rod, a fixing structure and clamping and fixing plates. The auxiliary installation device of the high-rise fire life saving machine for fire life saving has the beneficial effects that the clamping and fixing plates are arranged on the bottom side of the installation seat in parallel, fixing can be quickly carried out on a wall body in a use area through a descent control device, and meanwhile, the supporting rod located in the interior of the installation sleeve can slide relative to the installation sleeve so that a user can carry out adjustment on the extension length of the supporting rod according to the form of a building, and and the situation that a rope is directly contacted with thewall surface to cause rope jamming is avoided; the guide wheel located at the end of the supporting rod can greatly reduce frictional resistance generated in the sliding process of the rope, the sideface of the guide wheel is of an arc-shaped structure, and therefore the phenomenon that the rope can disengage when sliding on the side face of the guide wheel does not occur, and the safety of the lifesaving descent control device in the using process is improved.

The invention relates to a tooth-shaped paper strip carding frame. The tooth-shaped paper strip carding frame comprises a main frame body, wherein a supporting plate is arranged on each of the left side and the right side of the main frame body; a baffle plate is fixed on each of the front side and the rear side of the main frame body; a rectangular through hole is formed in the middle of each baffle plate; a screw is transversely arranged in each supporting plate in a matched manner; a rotary disc is fixed at the outer end of each screw; a plurality of limiting plates are uniformly and vertically arranged in the main frame body; a spring is fixedly mounted between upper parts of every two adjacent limiting plates; the lower parts of the limiting plates extend to the positions below the rectangular through holes; the left end surface of the limiting plate on the left-most side is movably connected with the right end of the screw on the left side, and the right end surface of the limiting plate on the right-most side is movably connected with the left end of the screw on the right side. According to the tooth-shaped paper strip carding frame, the multiple springs with the same elastic coefficient are taken as distance control parts for the limiting plates, so that the distance between any two adjacent limiting plates can keep identical effectively, and compared with a conventional tooth-shaped paper strip carding mode adopting metal columns, the tooth-shaped paper strip carding frame has the advantage that the adjustment flexibility can be greatly improved.

The invention discloses an artificial corneal endothelium in corneal stroma and a preparation method thereof. The preparation method comprises the following steps: preparing a dry-state silicon hydrogel mold blank: polymerizing a silicon hydrogel monomer into the dry-state silicon hydrogel mold blank; turning processing: fixing the dry silicone hydrogel mold base to a numerical control lathe, and turning artificial corneal endothelium, wherein the curvature radius of the front surface of the artificial corneal endothelium is consistent with that of the front surface of the cornea, and the curvature radius of the rear surface of the artificial corneal endothelium is close to that of the rear surface of the cornea; and polishing and hydration: polishing and trimming the front and rear surfaces of the artificial corneal endothelium, and fully hydrating in normal saline to form the colloidal corneal endothelium. The bottleneck that corneal endothelium transplantation must depend on the cornea of a high-quality donor is broken through, and the artificial corneal endothelium is implanted between corneal stroma layers of a patient, so that the artificial cornea does not take off, the intraocular interference is avoided, and the product is very safe.

An environmentally friendly and safe firecracker, comprising a shell and a lead wire, the shell is a U-shaped plastic molded part with an open end and a closed end, the inner cavity of the closed end is provided with a gunpowder part, and it is characterized in that: the shell It is a thin-walled shell, and also includes an end cover, the end cover is a plastic molded part, and the end cover is provided with lead through holes. One improvement is that the end cap is provided with a downwardly extending limiting foot. The invention has a simple structure, the shell and the end cover can be molded at one time, which is convenient for industrial production, has high safety factor in the production process, low cost of raw materials and processing, and the overall cost is reduced by more than 30%; the shell is closed, the moisture resistance is good, and the product reliability is high; Crisp, with echo effect, good burst loudness; burst rate of more than 95%, good safety performance; no paper scraps in discharge, discharge waste can be recycled, and the environmental protection benefits are remarkable.

The invention discloses a fixture for grinding outer spherical surfaces of spherical washers. The outer spherical surface of each ground spherical washer is provided with a narrow groove along the diameter direction. The fixture is characterized in that the fixture comprises a fixture body, a plurality of positioning pins are circumferentially and evenly distributed on the top of an outer spherical surface of the fixture body, and the top of each positioning pin is provided with a transverse groove. During grinding operation, the spherical washers arranged on the outer spherical surface of the fixture body are bound by a rope, the rope passes through the narrow grooves and the transverse grooves, the outer end surface of the fixture body is fixedly connected with an end cover, a rotating plate is arranged on the outer end surface of the end cover, the rotating plate is connected with the end cover through a locking screw, the locking screw movably passes through the central hole of the rotating plate and is then screwed in the end cover, and both ends of the rope pass through the outer spherical surface of the fixture to enter the hole of the fixture body, and then pass through the end cover to connect with the rotating plate. The fixture which is used for the grinding of the outer spherical surfaces of the spherical washers can rapidly clamp and reliably fix the spherical washers, and increases working efficiency.