53 results about "Circular face" patented technology

The invention relates to the technical field of oil and gas exploitation downhole tools, in particular to a multi-stage speed reduction gas anchor capable of being horizontally separated. The problems that an existing gas anchor is low in separation efficiency under the working conditions of a horizontal well and a high gas-liquid ratio, and gas locking of a liquid discharging pump is easily caused are solved. An annular separation cavity is formed between the outer pipe body and the inner insertion pipe. The outer pipe body is provided with an exhaust hole used for exhausting separated gas and a reverse flow guide hole used for guiding in a gas-liquid mixture to be separated. At least one set of speed reduction separation device is arranged in the annular separation cavity and comprises a plurality of half cone bodies which are sequentially arranged in the fluid direction, the large circular face end of each half cone body is fixed to the inner wall of the outer pipe body, and the small circular face end of each half cone body is cut to form a first semicircular arc and a second semicircular arc which are different in axial distance so as to form an asymmetric fluid channel. Efficient gas-liquid separation is achieved through forced fluid deceleration and disturbance, dependence on gravity is avoided, pump gas locking can be effectively prevented, and the pump efficiency is improved.

The utility model discloses an ultra-thin S-waveband isolator assembly, which comprises a cavity, a circular groove is arranged in the cavity, ports communicated with the groove are arranged on three side edges of the cavity, the circular surface of the circular groove is divided into three arc-shaped end surfaces by the three ports, and the arc-shaped end surfaces are communicated with the circular groove. Three crescent samarium-cobalt magnetic fields are arranged in the circular groove, and the outer arc-shaped end face of each crescent samarium-cobalt magnetic field is correspondingly attached to the three arc-shaped end faces in the circular groove. A first triangular gyromagnetic ferrite is installed among the three crescent samarium-cobalt magnetic fields, and a gold-plated inner conductor, a second triangular gyromagnetic ferrite, a nickel sheet and a cover plate are sequentially installed on the first triangular gyromagnetic ferrite from bottom to top. The utility model has the advantages of simple structure, small volume, wide bandwidth, low loss, good heat dissipation performance, high power, high normal temperature and high and low temperature reliability, easy assembly and the like.

A cathode roller two-end winding double-layer copper wire reinforced conductive structure comprises a cathode roller core, a roller, an inner side copper wire layer and an outer side copper wire layer. The roller is sleeved outside the cathode roller core; the roller comprises an outer roller body, an inner side plate and an outer side plate, and two annular grooves are formed in the outer sides of the two ends of the outer roller body in the width direction. The inner side plate is fixedly packaged on the inner side of the end part of the outer cylinder body, the outer side plate is arranged on the outer side of the inner side plate in an attached manner and is fixedly connected with the end part of the outer cylinder body, and meanwhile, the outer circular surface of the outer side plate extends to the outer side of the outer circular surface of the outer cylinder body; the inner side copper wire layer is connected in the annular groove in an attached mode, and the end of the inner side copper wire layer is electrically connected with the outer side plate. The outer side copper wire layer is connected to the outer circular face of the outer cylinder in an attached mode, and the end of the outer side copper wire layer is electrically connected with the inner side copper wire layer and the outer side plate at the same time. According to the conductive structure, the two layers of copper wires are wound at the two ends of the cathode roller, so that the conductivity can be remarkably improved, the stability of the structure can be effectively enhanced, the copper foil quality can be effectively ensured, and the production efficiency can be improved.

The invention relates to a valve closing member (12) for cooperation with a valve seat (14), comprising a body (16) with a front circular face (16.5) forming a central protrusion (16.2) along a longitudinal axis of the body, a seal (18) forming a ring fitted on the front circular face (16.5) and surrounding the central protrusion (16.2), and a retainer (20) forming a ring surrounding the seal (18) and attached to the body (16) for retaining the seal (18) on the body (16), wherein the seal (18) shows a radially inner surface (18.2) contacting a radially outer surface (16.4) of the central protrusion (16.2), both the radially inner surface (18.2) and the radially outer surface (16.4) being cylindrical, the radially outer surface (16.4) showing at least one circular groove (16.3) into which the seal is radially pressed by the retainer (20).

The invention discloses a feeding and conveying device for tea ingredient, and relates to the technical field of tea processing equipment.The feeding and conveying device is technically characterized by comprising a vacuum feeding machine body and a material suction pipe fixedly installed on the vacuum feeding machine body, and a petal damage prevention structure is arranged on the material suction pipe and comprises a plurality of air inlet arc grooves formed in the inner circular face of the material suction pipe; by arranging the petal damage prevention structure, a uniform and stable annular air curtain is formed on the inner wall of the suction pipe, petals are suspended in the center of the pipe, collision friction between the petals and the pipe wall is reduced, and the shape integrity of the petals is effectively protected; flexible switching of the airflow direction is achieved through a micro electric telescopic rod, a linkage rod and an air direction guiding assembly, and the conveying requirements of petals with different humidity are met; meanwhile, the ion fan generates airflow with electrons to neutralize petal static electricity; and in combination with the barrel-shaped filter screen and the wind direction guiding assembly, the filter screen can be automatically blown up and down in two directions after operation, efficient self-cleaning is achieved, and the service life of equipment is prolonged.

The invention relates to the technical field of horizontal machine tools, in particular to a horizontal machine tool knife rest multi-axis positioning device and method. The horizontal machine tool knife rest multi-axis positioning method comprises the steps that a rotary seat is horizontally placed, a first positioning assembly is assembled on the rotary seat, and a first mandrel is in a vertical state; the tool rest spindle is placed on a rotary seat, and a connecting screw is screwed to a first locking degree; a second positioning assembly is assembled on the tool rest spindle, and a second mandrel is in a horizontal state; the first mandrel is lifted, the position of the tool rest spindle is adjusted, a notch in the upper end of the first mandrel is matched with the second mandrel in an inserted mode, and the first mandrel is orthogonal to the second mandrel; screwing the connecting screw to a second locking degree; the position of the tool rest spindle is adjusted, the end face of the second receiving disc abuts against the outer circle face of the notch, and the actual distance between the rotation center axis of the rotation base and the tool center of the tool rest spindle meets the designed distance; and screwing the connecting screw to a third locking degree, wherein the third locking degree is complete screwing. And precise positioning of the tool rest assembly is achieved.

The utility model relates to a composite sealing valve seat with an elastic automatic compensation function. The composite sealing valve seat comprises a base, a sealing seat and a sealing ring, the sealing device is characterized in that the sealing ring has an inverted trapezoidal section structure and is mounted on a cylindrical surface between a first step and a second step on the outer circular surface of the base; an elastic compensation device composed of a cylindrical spring and a pressing ring is arranged in a second spring cavity on the left side of the sealing ring, when the sealing ring is abraded in the frequent moving process, the cylindrical spring pushes the pressing ring, the inclined face of the pressing ring is made to tightly wedge the sealing ring, the sealing ring is expanded in the radial direction, and abrasion of the outer circle face of the sealing ring is automatically compensated. Reliable sealing between the valve seat and the valve body channel is achieved, and the sealing performance between the valve seat and the valve body is improved.

The utility model relates to the technical field of communication optical cables, in particular to a skeleton type optical fiber cable, which comprises a skeleton with a reinforcing core in the center, and open accommodating grooves are uniformly distributed on the circumference of the skeleton. The plurality of optical fiber core bodies are arranged in the accommodating grooves in a one-to-one correspondence manner; wherein a first protrusion or a second protrusion is formed between every two adjacent containing grooves, the first protrusions and the second protrusions are distributed in a staggered mode, the peripheral faces of the first protrusions and the peripheral faces of the second protrusions are located on the same circular face, and a plurality of thin-wall bodies extending outwards are fixed to the first protrusions at intervals in the axial direction. A limiting clamping groove is formed in the second protrusion, and the outer end of the thin-wall body is movably clamped in the limiting clamping groove after the thin-wall body is bent. According to the utility model, the problems of signal attenuation and even communication interruption caused by the fact that the optical fiber ribbon is separated, bent or fractured after the outer protective layer of the skeleton groove structure of the existing optical cable is damaged can be effectively solved.

The utility model discloses a shaft structure of a wind driven generator, which comprises a motor shaft and discs, the discs comprise a first disc and a second disc, the first disc and the second disc are respectively sleeved at one end of the motor shaft in parallel, the first disc is positioned at a position far away from the end part of the motor shaft, and the second disc is positioned at a position close to the end part of the motor shaft. A common reinforcing rib is arranged between the first disc and the second disc, and the reinforcing rib penetrates through the space between the two discs; a second flange connected with a hub is arranged on the inner circle face of the first disc, and a first flange connected with a generator rotor is arranged on the outer circle face of the first disc. And bearing mounting surfaces are respectively arranged on the inner circular surfaces at two ends of the motor shaft. By means of the double-disc single-reinforcing-rib structure, the two discs share the same set of reinforcing ribs, the whole structure is compact, rigidity is high, the weight is light, and economical efficiency is high.

A sliding structure of a vehicle steering intermediate shaft and a preparation method therefor, which belong to the technical field of vehicle steering systems. The sliding structure is characterized by comprising an outer tube and a sliding shaft arranged in the outer tube, wherein the outer tube is formed by integrally molding or fixedly connecting a connecting tube and a sliding tube; an outer circular face of the sliding shaft is provided with an outer sliding structure, an inner wall of the sliding tube is provided with an inner sliding structure, and the sliding shaft and the outer tube are in meshing transmission connection by means of the outer sliding structure and the inner sliding structure; and a friction coating is provided on the surface of the outer sliding structure, a shaft sleeve is provided on part or all of the surface of the inner sliding structure, and the shaft sleeve and the friction coating form a sliding friction pair. The present invention can significantly reduce frictional force, has a small sliding force, small angular backlash, high motion precision and high wear resistance, meets the requirements of long service life, and can be widely applied in various vehicle steering systems, thereby improving the steering flexibility and stability.

The utility model provides a radioactive sampling manipulator for a nuclear waste barrel, and belongs to the technical field of radioactive detection sampling. The radioactive sampling manipulator for the nuclear waste barrel comprises a mechanical arm, a connecting base installed at the front end of the mechanical arm and a sampling head arranged on the connecting base and used for fixing sampling paper, and the sampling head comprises a base plate, a paper supporting part fixedly arranged on the front side face of the base plate and clamping plates arranged on the two sides of the paper supporting part. The two clamping plates are matched with the two sides of the paper support part through relative movement to clamp the two ends of the sampling paper, and the paper support part is provided with a round face located at the front end and first planes arranged at the two ends of the round face. The sampling device has the advantages of high sampling automation degree, high efficiency and high sampling paper utilization rate in radioactive detection of the nuclear waste barrel.

The application belongs to the technical field of additive manufacturing, and particularly relates to an aircraft cylinder segment and an additive manufacturing method thereof, which comprises a cylinder body, the cylinder body is formed by the cooperation of one or both of an end face and an outer circular face, the end face or the outer circular face comprises a framework and a sandwich layer, the sandwich layer wraps the framework, and the framework and the sandwich layer are integrally manufactured by an additive manufacturing device. The aircraft cylinder segment and the additive manufacturing method thereof can fully maintain the overall strength and integral forming of the cylinder segment by arranging the framework, the sandwich layer can not only realize the light weight of the cylinder segment, but also can inject inert gas in the space of the sandwich layer, on the one hand, the inert characteristics of the inert gas can realize the heat insulation effect, and on the other hand, the inert gas can also realize the effect of shock absorption and noise reduction, so that the problem of the influence of vibration or noise on the internal electronic components of the aircraft can be prevented.

Systems, methods, and devices include a bone repair system with a modular configuration of components. A bone repair device includes a head which tapers from a circular face to a first connector stem. The bone repair device also includes a plurality of interchangeable middle portions. A middle portion includes a first receiving area at a first end and a second connector stem at a second end. The first receiving area is operable to engage the first connector stem of the head portion. The bone repair device further includes a stem portion including a second receiving area at a first end and a tapered implantation stem at a second end. The second receiving area is operable to engage the second connector stem of the middle portion. Furthermore, the stem portion, the middle portion, and the head portion are selectively coupled to form a modular arrangement.

The invention discloses an endoscope which comprises a handle, a side mirror mechanism and a driving mechanism. A penetrating channel is formed in the handle, the side mirror mechanism is partially installed in the penetrating channel in a sliding mode, the cross section of the side mirror mechanism is a circular face, the side mirror mechanism comprises at least two side mirror assemblies, the cross section of each side mirror assembly is a fan-shaped face, and the adjacent side mirror assemblies are connected in a sliding mode through a sliding structure. The fan-shaped faces of the side mirror assemblies are spliced to form the circular face of the side mirror mechanism, the diameter of the side mirror mechanism composed of the side mirror assemblies is the same as that of a traditional endoscope, discomfort of a patient cannot be increased, and the smoothness of endoscope insertion operation cannot be affected. The driving mechanism is connected with the side mirror assemblies, the driving mechanism drives at least one side mirror assembly to move relative to the other side mirror assemblies along the sliding structure, so that different side mirror assemblies move to different observation planes, the different side mirror assemblies carry out imaging synchronously, and medical staff can know the collapse and blocking conditions of the different observation planes at the same time.

The utility model relates to the field of hanging baskets, in particular to a special hanging basket for a crane, which comprises a first body, a second body is arranged in the first body, limiting plates are symmetrically and fixedly connected to the opening side of the first body, limiting grooves are formed in the limiting plates, a first baffle is arranged between the limiting plates, and two groups of adjusting grooves are symmetrically formed below the first baffle. An adjusting mechanism is arranged in the adjusting groove and comprises a limiting frame rotationally connected to the side wall of the adjusting groove, one end of the limiting frame is fixedly connected with a limiting column, a J-shaped groove and a tooth-shaped groove are formed in the circular face of the limiting frame, and a J-shaped rod is further rotationally connected to the side wall of the adjusting groove. The first baffle is pulled upwards to a proper position, the first baffle achieves self-locking under the gravity of the first baffle, the opening side of the first body is not shielded by the first baffle any more, a hoisted object can be filled into the hanging basket from the opening side of the first body, operation is convenient, the process of lifting the hoisted object is omitted, labor force is effectively reduced, and the hoisting efficiency is improved. And the working efficiency is improved.

The utility model discloses an I-shaped pile which comprises a pile body, V-shaped empty grooves are formed in the two sides of the pile body, a protruding block and a groove are arranged at the ends of the V-shaped empty grooves in the two sides respectively, the side face, away from the V-shaped empty grooves, of the protruding block is a first arc face, and the side face, connected with the V-shaped empty grooves, of the groove is a second arc face. The first arc surface and the second arc surface are matched with each other, contact surfaces are arranged on one side of the protruding block and one side of the groove, a deviation rectifying chamfer is arranged on one side of the bottom end of the pile body, and when the pile body is inserted into soil, the deviation rectifying chamfer on one side of the bottom end of the pile body and the soil are extruded to prevent the bottom end of the pile body from inclining. And the convex blocks and the grooves are always kept to be attached, so that a gap is reduced, soil in a cavity formed by the two V-shaped empty grooves between the two pile bodies is prevented from being eroded by water flow to be lost, and the overall protection effect of the bank protection wall is improved.

The utility model relates to the technical field of automatic sorting, in particular to an automatic conveying, sorting and conveying system for medicine logistics storage, which comprises a gravity sensing device, a sorting and conveying device, a sorting and conveying device and a control device, the baffle plate is a cuboid of which the bottom is provided with a cylindrical roller; the baffle support is of a fixing structure with a hollow cylinder in the middle and trapezoid bodies arranged on the circular faces of the two sides, and the hollow cylinder is arranged on the outer wall of the cylindrical roller of the baffle in a sleeving mode; wherein a cuboid sliding block is mounted on the lower surface of the baffle, and a spherical groove is formed in the top surface of the sliding block; the outer surface of the hydraulic device is a cylindrical shell with the top provided with a spherical structure, and the hydraulic device is connected with the sliding block through the spherical groove. The gravity sensing device senses passing of the medicine, the baffle is controlled to ascend and descend, so that other medicine is prevented from entering the sorting channel, safety guarantee is provided for medicine sorting operation, and the probability of sorting errors is reduced.

The utility model relates to the technical field of spoon bending, in particular to a stainless steel spoon machining and bending treatment device which comprises a rectangular bottom plate and a machining device, the machining device is arranged on the upper surface of the rectangular bottom plate, a rectangular mounting groove is formed in the upper surface of the machining device, and a rectangular positioning block is arranged on the bottom surface in the rectangular mounting groove in a penetrating mode. An arc-shaped machining groove is further formed in the upper surface of the rectangular positioning block, trapezoidal blocks are slidably connected to the arc faces in the rectangular mounting groove, guide frames are arranged on the two sides of each trapezoidal block, guide rods are fixedly connected to the vertical faces of the two sides of each trapezoidal block, and the circular faces, away from the trapezoidal blocks, of the guide rods are located at the inner rings of the guide frames; and the vertical surface of the guide frame is fixedly connected with the mounting plate, so that the phenomenon that the corners are often unqualified or damaged during manual bending can be avoided, and the qualification rate is increased.

The utility model discloses a feed granulation slag recovery device which comprises an outer shell and a screen, the screen is located in the outer shell, a vibration device is fixedly arranged in the outer shell, a vibration part of the vibration device is connected with the screen, two lower material guide plates are further obliquely arranged in the outer shell, and the lower material guide plates are connected with the lower material guide plates. The lower guide plates are located below the screen, the lower edges of the two lower guide plates are connected with a feeding groove, two crushing rollers are rotationally arranged above the feeding groove and rotate oppositely, crushing teeth are arranged on the crushing rollers, the bottom face of the feeding groove is a semi-circular face, one end of the semi-circular face is communicated with a slag discharging chute on the outer side of the outer shell, and the other end of the semi-circular face is communicated with a slag discharging chute on the outer side of the outer shell. A feeding auger is arranged in the semicircular face of the feeding groove and extends into the slag discharging chute. The utility model aims to provide the disintegrating slag recovery device after feed granulation, so that screened disintegrating slag can be treated, the disintegrating slag can be put into a granulator to be granulated again, and the limitation of an existing recovery device is overcome.

The utility model belongs to the technical field of fans, and discloses an upper air gathering barrel structure of a fan, which comprises a barrel body mounted on a fan frame, a barrel door is rotatably mounted on the inner wall of the barrel body close to the fan frame, and a first sealing strip and a second sealing strip are further fixedly mounted on the inner wall of the barrel body. The first sealing strip and the second sealing strip are located on the two sides of the cylinder door respectively and are arranged in a central symmetry mode with a rotating shaft of the cylinder door as the center, and a first sealing ring and a second sealing ring are fixedly installed on the outer circular face of the cylinder door. The air gathering cylinder is simple in overall structure, the opening degree of the cylinder door of the air gathering cylinder can be flexibly adjusted, the good sealing effect is achieved when the cylinder door is closed, the maintenance cost is reduced, and the using effect is improved.

The utility model discloses a spline shaft and spline housing connecting structure, a transmission system and an engineering vehicle. The spline shaft and spline housing connecting structure comprises a spline shaft, a spline housing and at least one set screw. The spline shaft is mainly composed of a circular shaft and a tooth structure I located on the radial peripheral face of the circular shaft. A groove structure is arranged on the tooth top circular face of the tooth structure I. The spline housing is mainly composed of an annular shaft and a tooth structure II located on the radial inner circumferential face of the annular shaft, a hole structure composed of an unthreaded hole and a threaded hole is arranged on the spline housing, the spline shaft is sleeved with the spline housing, and the hole structure and the groove structure are coaxially arranged; the set screw is screwed in the threaded hole after penetrating through the unthreaded hole in the spline sleeve, a part of the set screw is located in the groove structure, and then axial fixation between the spline shaft and the spline sleeve is achieved. Structural improvement and fastening connection are performed inside the engaged connection of the spline shaft and the spline housing, so that the connection of the spline shaft and the spline housing is ensured on the basis of the existing radial and circumferential spline engagement, and the axial fixation is enhanced.

The utility model discloses a self-rotating type high-pressure abrasive jet drill bit, and belongs to the technical field of drilling tools. The drill bit comprises a cutterhead, a middle connector and a base, the cutterhead is detachably connected with the middle connector, and the middle connector is detachably connected with the base. At least two high-pressure driving nozzles, at least one high-pressure jet nozzle and cutting picks are arranged on the cutter head, the cutting picks are annularly arranged on the cutter head, the high-pressure driving nozzles are mounted at the edge of the cutter head, and the water jet direction is the tangential direction of the circular edge and is clockwise or anticlockwise. The water jet direction of the high-pressure jet nozzle is the front, and the high-pressure jet nozzle is located on different cutter disc circular faces and can conduct full-section cutting on the front rock mass so as to be matched with cutting teeth to cut the rock mass. A bearing mounting seat, a high-pressure water driving inlet and a high-pressure water jet inlet are arranged on the base; and corresponding water flow channels are arranged in the middle connecting body and the base. The drill bit can achieve self-rotation, rock mass can be rapidly broken, and the drilling efficiency is improved.

The utility model discloses an LED down lamp capable of dissipating heat and removing dust, and relates to the technical field of LED down lamps, the LED down lamp comprises a shell, the inner wall of the shell is provided with a cavity, the upper end of the inner surface of the cavity is fixedly provided with a silent fan, and the inner surface of the shell is fixedly provided with a dust collecting net; and the same dust removal mechanism is arranged in the cavity and in the inner wall of the inner circular surface of the shell. Compared with an existing common LED down lamp, the LED down lamp capable of dissipating heat and removing dust can effectively conduct cooling and heat dissipation on the whole down lamp, when hot air is blown out, dust on the surface of a dust collecting net and the surface of an LED lamp can be blown off, a certain dust removing effect is achieved, when a silent fan works, fresh air can blow downwards to enable a turbofan to rotate, and the heat dissipation effect is achieved. The whole movable barrel is driven to rotate through the transverse frame, at the moment, the brush can be attached to the surface of the dust collecting net to brush, a large amount of attached dust is wiped away, the dust is blown off along with exhausted air, the effective dust removal effect is achieved, and the dust can be fully removed.

A horizontal reactor equipped with a front cover and including a circular cylindrical rotating cage having multiple openings and rotated about a horizontal axis by a motor, a single horizontal rotary shaft mechanically connecting the rotating cage to the motor and extending towards the outside from the distal face of the housing, at least one bearing provided around the rotary shaft to hold it and guide it, and to support the weight of the rotating cage in cantilever, at least one removable basket having multiple openings and intended to be able to be introduced inside the rotating cage and to be removed through an open circular face of the rotating cage provided opposite the cover.

The utility model belongs to air purification equipment technical field, concretely is a kind of air purification with air blast drying oven, including cabinet, the first air inlet is arranged in cabinet one side, the first air outlet is arranged in cabinet other side, inside fixed setting of cabinet has inner shell, inner shell is close to the side of the first air inlet and is provided with the air induction curved surface of triangle shape, two arc surface outer side of air induction curved surface is rotatably provided with pivot in cabinet, pivot outer circular face is fixedly provided with multiple air baffle, the both sides of inner shell are provided with adsorption groove on the inner wall of cabinet, detachable adsorption rod is provided in adsorption groove, the side of adsorption rod is fixedly provided with multiple wind deflector between inner shell and cabinet, the structure of the application is set through air induction curved surface, adsorption rod and air induction rotating plate etc., solve the problem that air cannot effectively and adsorption rod fully contact and adsorption structure adherend accumulation influence adsorption effect in prior art, to strengthen the effect of purifying gas.

The utility model belongs to the technical field of construction dust fall, and provides a centrifugal spraying device for a construction site, the centrifugal spraying device comprises a barrel and an axial fan arranged in the barrel, a shaft pipe penetrates through the barrel from back to front along the central axis, the rear end of the shaft pipe is connected with a high-pressure water pipe, and the front end of the shaft pipe is rotatably connected with a spraying pipe communicated with the shaft pipe; the spray pipe divides the front end face of the barrel into two semi-circular faces all the time, and nozzles are arranged at the two ends of the spray pipe and face the different semi-circular faces respectively. The problem that a spraying device blocks a nozzle is solved, the spraying area can be enlarged, and the spraying effect is improved.

The utility model discloses a clutch plate in a gearbox of a 3-ton loader. The clutch plate comprises a driving plate and a driven plate, tooth-shaped protrusion structures are arranged on the circular faces of the driving piece and the driven piece, the contact faces transmit torque through circular face tooth-shaped meshing, the tooth-shaped protrusions and the friction pieces are integrated, the outer ring of the driving piece is meshed with a clutch input gear, the inner ring of the driving piece is not meshed with the clutch input gear, and the inner ring of the driven piece is meshed with a clutch output end gear, and the outer ring of the driven piece is not meshed with the clutch output end gear. The clutch disc is simple and compact in structure, low in maintenance cost, long in service life and efficient in operation, and solves the problems that in the prior art, a clutch disc in a gearbox needs to be replaced after being used for a certain period, so that the maintenance cost is increased, and the operation efficiency is affected.

Systems, methods, and devices include a bone repair system with a modular configuration of components. A bone repair device includes a head which tapers from a circular face to a first connector stem. The bone repair device also includes a plurality of interchangeable middle portions. A middle portion includes a first receiving area at a first end and a second connector stem at a second end. The first receiving area is operable to engage the first connector stem of the head portion. The bone repair device further includes a stem portion including a second receiving area at a first end and a tapered implantation stem at a second end. The second receiving area is operable to engage the second connector stem of the middle portion. Furthermore, the stem portion, the middle portion, and the head portion are selectively coupled to form a modular arrangement.

The invention relates to the field of road edge stone production, and discloses an energy-saving type compression molding device for road edge stone production, which comprises a mold assembly and a compression molding component, the mold assembly comprises a fixed barrel shell, a rotating seat is sleeved in the fixed barrel shell, the end face of the rotating seat is provided with a mounting hole, and a steel mold is arranged in the mounting hole; four mounting holes are formed in the circumferential direction of the rotating seat in an array mode, at the beginning, the positions of the four mounting holes are named as a first position, a second position, a third position and a fourth position correspondingly, inner holes are coaxially formed in the lower closed end of the fixed barrel shell and the end face of the rotating seat in a penetrating mode correspondingly, and the pressing forming component comprises a main shaft column coaxially located in the inner holes; the bottom of the main shaft column is located below the fixed barrel shell and provided with a convex lug base, the convex lug base is driven by a hydraulic cylinder arranged at the lower closed end of the fixed barrel shell to move, and a vibration assembly and a pressing assembly are arranged on the outer circle face of the main shaft column.

The invention provides a skirting line film coating heating device and method, and belongs to the technical field of skirting line production. The skirting line film coating heating device comprises a swing mechanism, a bearing frame, a heating roller press and a constant pressure device; the swing mechanism is provided with a through hole and a mounting cavity, the bearing frame is fixedly connected with the swing mechanism, the bearing frame is provided with a lifting assembly and a shell, and the heating roller press comprises a rotating body, a fixed heating part, an external expansion heating part, a push-pull assembly and a driving assembly; the rotating body is rotationally connected with the shell and provided with a mounting groove, the fixed heating part is fixedly mounted on the outer side face of the rotating body, the push-pull assembly is mounted in the mounting groove, the external expansion heating part is connected with the free end of the push-pull assembly, and the outer side face of the fixed heating part and the outer side face of the external expansion heating part are spliced to form a circular face; the pressure stabilizer comprises a driving piece and a heating roller. According to the skirting line film coating heating device, the connecting firmness and tightness of a texture film on a skirting line are improved, the texture film is effectively prevented from falling off, and a protective layer is made to be easily torn off from the texture film.