32results about How to "Avoid turmoil" patented technology

The embodiment of the invention provides a TCP congestion control method and device, and the method comprises the steps: determining a congestion window of a first RTT period as a half of a theoretical congestion window when the TCP congestion control is started; Determining a theoretical congestion window as a congestion window of a second RTT period when the first RTT period performs normal transmission; Determining the current historical maximum congestion window as the congestion window of the third RTT period when the transmission port is normal in the second RTT period; And for each RTTperiod after the second RTT period, determining the current historical maximum congestion window as the congestion window of the next RTT period during normal transmission from the third RTT period tothe current RTT period. By applying the scheme provided by the embodiment of the invention, the congestion control of the video service can be realized, and the service throughput is improved by quickly improving the congestion window, so that the service experience of a user is improved.

The invention relates to an inspecting device for an ophthalmology department, in particular to an adjustable inspecting device for the ophthalmology department. The adjustable inspecting device for the ophthalmology department achieves the technical purposes that the structure is flexible, regulation can be performed, the using requirement of different workers can be met, and burdens of medical workers and patients can be relieved. According to the technical scheme, the adjustable inspecting device for the ophthalmology department comprises a base, a large fixing plate, a first lifting plate,a second lifting plate, a bed plate, a rotating shaft, a worm gear, a worm, a long connecting shaft, a first bearing pedestal, a second bearing pedestal and the like; the large fixing plate is connected to the top of the base. The adjustable inspecting device for the ophthalmology department is flexible in structure, can be adjusted, can meet the using requirements of different workers, can relieve burdens of medical workers and patients, and is capable of performing examination and treatment on patients conveniently, safe and reliable in performance, convenient to use, easy to maintain and low in maintenance cost.

The invention discloses a method for building and repairing a dam of a flooded paddy field, and relates to the field of agricultural production and water conservancy construction. By using the method, a water storage function of the flooded paddy field is fulfilled, the natural wetland of the Dazhou can be recovered, the water level of the flood peak of a river is reduced, flood damage of the river of the Dazhou is reduced, and functions of flood storage and drought control are fulfilled. The dam of the flooded paddy field consists of Z-shaped plates (1), field dam flood storage plates (2), a planting stepped water gate (3), a flood storage inclined plate trumpet-shaped water gate (4) and connecting plates (5). Before raining, the water gates are opened, and clear water in the flooded paddy field is drained; during raining, the water gates are closed, flood is stored, the water level of the flood peak of the river is reduced, and the quantity of muddy sand in the flood is reduced; and the rainwater can be stored by the flooded paddy field at all seasons, by using the rainwater, planting, cultivation and drought control can be carried out, and functions of the natural wetland of the flooded paddy field of the Dazhou can be recovered.

The invention relates to an intelligent oil-water separator, in particular to an intelligent oil-water separator for foodservice industry. The intelligent oil-water separator comprises a main box body, wherein a liquid inlet, a drain outlet and an oil outlet are formed in the main box body; an oil-water separating cavity is formed in the main box body, and the liquid inlet is communicated with the inside of the oil-water separating cavity; an oil-separating funnel is arranged in the oil-water separating cavity, and the oil-separating funnel is located at the upper end of the oil-water separating cavity; the upper end of the oil-separating funnel is an oil inlet of the funnel and the lower end is an oil outlet of the funnel; the oil inlet of the funnel is communicated with the inside of the oil-water separating cavity, and the oil outlet of the funnel is communicated with the oil outlet through an oil outlet pipe; and a driving device is also arranged on the oil-water separator to drive the oil-separating funnel to move up and down. The oil-water separating device provided by the invention is simple in structure, small in spatial volume and low in cost, and can be directly arranged in a kitchen of a restaurant or a dinning hall.

The invention discloses a chip cleaning and drying device which comprises a main body mechanism, a support mechanism, a cleaning mechanism, a brushing mechanism, a drying mechanism and a waste liquidcollecting mechanism, and is characterized in that a box body is connected with a bottom plate through a connecting piece, a base is fixedly arranged above the bottom plate, and the output end of a motor is connected with a support plate; and a cleaning box is arranged above the support plate, and electric telescopic rods are symmetrically arranged in the cleaning box. According to the chip cleaning and drying device, the electric telescopic rods are arranged, the electric telescopic rods on the two sides can stretch and contract in a staggered mode, and therefore a storage plate can be drivento swing left and right, and then chips on the storage plate can be conveniently collided with cleaning liquid to be cleaned; and meanwhile, clamping grooves are formed, and telescopic springs in theclamping grooves can extrude and fix the chips. According to the chip cleaning device, the chips on the storage plate can be prevented from accidentally falling off in the cleaning process, and the multiple clamping grooves are formed, so that the chips are conveniently cleaned in batches, and the cleaning efficiency of the device is conveniently improved.

The invention relates to the technical field of an ASON (Automatically Switched Optical Network) and provides a method and a system for carrying out service maintenance in the automatically switched optical network. When a certain section of optical fiber link needs to be maintained in the network, a network manager transmits a link maintenance command to nodes at both ends of the link; after the nodes receive the link maintenance command, a service on the link is inquired firstly; a first node of the service is positioned by a service label; the link maintenance command is transmitted to the first node; and the first node launches service maintenance. All the services on the link are maintained by transmitting the link maintenance command to different first nodes and automatically launching the maintenance command sequentially by each first node so as to avoid the complexity of the current link maintenance. When the network manager transmits the link maintenance command, all the service maintenance can be automatically completed. Therefore, the method and the system solve the bottleneck of the current batch service maintenance and improve the working efficiency.

The present invention discloses a method for a fast switching forwarded by an Ethernet ring network tri-level routing, a behavior identifier used to identify a tri-level routing service forward is increased at the ring network port of an Ethernet ring network node, and the survival time is set for the behavior identifier, when the Ethernet ring network works normally, the behavior identifier only is existent, but, any action is not done; once the Ethernet ring network fails or the ring network recoveries, the behavior identifier is activated to finish the work: the tri-level routing service forwarded by the ring network port of the node replicates and forwards a copy from the other ring network port of the node. The behavior identifier is aged after the information is established newly under the tri-level routing service, after the behavior identifier is aged, the behavior is withdrawn and only the identifier is reserved; when the behavior identifier is within the survival time, if the ring network shocks, the survival time is re-configured, to avoid the shock caused by the behavior identifier and the tri-level service forward, thereby to ensure that the tri-level routing service in the Ethernet ring network can meet the requirement of the fast switching within 50 ms.

The invention relates to a medical blood-drawing assisting chair, in particular to a medical pediatric blood-drawing assisting chair and aims to provide a medical pediatric blood-drawing assisting chair capable of blocking the sight of pediatric patients and beneficial for the pediatric patients to be cooperative in blood drawing. The technical scheme includes that the medical pediatric blood-drawing assisting chair comprises a base, a large bearing, a large supporting rod, a seat board, a side plate, a large guide rod, a first spring, a pressure plate, a small screw rod and the like. The large bearing is embedded in the middle of the base and is in interference fit connection with the lower end of the large supporting rod, and the seat board is connected to the upper end of the large supporting rod. The medical pediatric blood-drawing assisting chair has a sight blocking function and is capable of blocking the sight of the pediatric patients to prevent fear emotion of the pediatric patients seeing blood drawing, beneficial for the pediatric patients to be cooperative in blood drawing and capable of fixing the pediatric patients to prevent the pediatric patients from moving.

The invention discloses a jaundice treatment device capable of uniformly irradiating and used by a pediatrician and a use method thereof. The jaundice treatment device comprises a machine body, a treatment room, a motor, a blue light lamp and a sleep box, the treatment room is formed in the upper end of the machine body, a fixing frame is fixed to the inner wall of the left side of the treatment room, and the output end of the motor is in key connection with a driving gear; the cylinder is located in the groove, one side of the disc penetrates through the interior of the right side of the fixing frame to be connected with a rotating block, an adjusting rod is arranged in the through groove, one end and the middle of the rotating rod are in shaft connection with a first movable block and a second movable block correspondingly, and a lamp holder is installed at the other end of the rotating rod. According to the jaundice treatment device capable of uniformly irradiating and used by the pediatrician and the use method thereof, in the use process, the whole body of an infant can be uniformly irradiated according to the human body shape of the infant, meanwhile, the function of assisting sleep of the infant can be achieved, and the situation that the blue light irradiation treatment effect is affected due to disordered movement of the infant is avoided.

The invention relates to the technical field of injection assistance, and discloses pediatric medical injection equipment. The pediatric medical injection equipment comprises a base, a sponge mat adheres to the top of the base, a backrest is welded to the rear part of the base, an injection assisting mechanism is arranged in the backrest, a fixing seat is arranged on the surface of the injection assisting mechanism, a backrest plate is slidably connected with the front part of the backrest, sound openings are formed in the two sides of the backrest, and arm placing seats are fixedly connected to the two sides of the base through bolts. By means of the injection assisting mechanism, the effects of roughly fixing the body of a child and diverting the attention of the child are achieved, medical workers are assisted in injection in an entertainment mode, on the one hand, the effect of preventing the child from moving disorderly to affect injection is achieved, on the other hand, the effect of improving the injection interest of the child is achieved, the fear of the child caused by a needle head is reduced, furthermore, the medical staff can conveniently inject, and the injection effect is improved.

The invention provides a Fenton reactor, belonging to the technical field of multi-stage treatment of water, wastewater, sewage or sludge. The Fenton reactor comprises a reaction tube and an output tube, wherein one end of the reaction tube is provided with an inlet, and the other end of the reaction tube is communicated with the output tube; the side wall of the output tube is provided with an output pump; a to-be-treated medium flows anticlockwise from the inlet to the output pump; a first adding opening and a second adding opening are sequentially formed in the inlet end of the reaction tube in a water inflow direction, and are used for adding ferrous sulfate and hydrogen peroxide respectively; the reaction tube is of a well type structure formed by connecting multiple sections of tubepieces, and at least one mixer is arranged on the well type structure; a liquid caustic soda adding port is formed in the end, connected with the output tube, of the reaction tube; liquid caustic sodapasses through the liquid caustic soda adding port; and a treated medium is discharged into a next procedure through the output pump. The Fenton reactor is applied to sewage treatment and has the advantages of small occupied space, high reaction speed and the like.

The invention relates to a medical blood-drawing assisting chair, in particular to a medical pediatric blood-drawing assisting chair and aims to provide a medical pediatric blood-drawing assisting chair capable of blocking the sight of pediatric patients and beneficial for the pediatric patients to be cooperative in blood drawing. The technical scheme includes that the medical pediatric blood-drawing assisting chair comprises a base, a large bearing, a large supporting rod, a seat board, a side plate, a large guide rod, a first spring, a pressure plate, a small screw rod and the like. The large bearing is embedded in the middle of the base and is in interference fit connection with the lower end of the large supporting rod, and the seat board is connected to the upper end of the large supporting rod. The medical pediatric blood-drawing assisting chair has a sight blocking function and is capable of blocking the sight of the pediatric patients to prevent fear emotion of the pediatric patients seeing blood drawing, beneficial for the pediatric patients to be cooperative in blood drawing and capable of fixing the pediatric patients to prevent the pediatric patients from moving.

The invention relates to the technical field of ships, and specifically discloses an anti-swing system for deployment and recovery of underwater devices, which includes a deck platform, a winch mechanism and an A-type gantry, the winch mechanism is arranged at one end of the deck platform, and the A-type gantry Set at the other end of the deck platform, the inclination angle between the A-type gantry and the deck platform can be adjusted. The A-type gantry is suspended with a first bracket. There is a first guide wheel, and the middle part is equipped with a follow-up anti-off-rope device. In the anti-swing system of the present invention, the clamping mechanism clamps the underwater device, and the buffer limit seat of the underwater device has a limit effect on the underwater device, so that the underwater device can obtain a good anti-swing effect ;The collet is designed with a round shape and flexible material, which prevents the damage to the underwater device caused by the collet; the operation of the follow-up anti-rope device avoids the large fluctuation caused by the underwater device during the ascent process .

The medical orthopedic surgery positioning and punching device comprises a mounting plate and a bottom plate fixed to the lower end of the mounting plate, the mounting plate is in a knife shape, the front face of the mounting plate is rotationally connected with a first rotating shaft, and the first rotating shaft is coaxially and fixedly sleeved with a gear; a first rotating plate is fixedly connected to the position, on the front side of the gear, of the first rotating shaft in a sleeving mode, a second rotating plate is connected to the lower end of the first rotating plate through a pushing mechanism, a puncher is fixedly installed at the lower end of the second rotating plate, and an electric telescopic rod is fixedly installed on the front face of the mounting plate; the telescopic end of the electric telescopic rod is fixedly connected with a toothed plate meshed with the gear, the outer wall of the first rotating plate is fixedly connected with a pointer, and the front face of the mounting plate is fixedly connected with an angle arc plate used in cooperation with the pointer. According to the device, the punching angle and the punching depth can be freely set, the situations of punching deflection and too deep or too shallow punching are avoided, and meanwhile the situation that a patient moves randomly and influences an operation can be avoided.

The present invention pertains to the technical field of Automatically Switched Optical Network (ASON), and provides a service maintenance method and system in an intelligent optical network. When a certain section of fiber link is necessary to be maintained in the network, a network management platform issues a link maintenance command to the both end nodes of the link. After receiving the link maintenance command, the nodes query the services on the link first, locate the head node of the service according to a service label, and transmit the link maintenance command to the head node, and then the head node initiates the service maintenance. By transmitting the link maintenance command to different head nodes, each head node initiates the maintenance command automatically one by one, and thereby all the services on the link are maintained, the complexity of the present link maintenance is avoided, the network management platform is only needed to issue the link maintenance command, all the service maintenance can be accomplished automatically, one bottleneck of the present batch service maintenance is solved, and the work efficiency is improved.

The invention relates to a tool shovel for a garden and in particular relates to a conveniently-used tool shovel for a garden. The technical problem to be solved is to provide the conveniently-used tool shovel for the garden, which is adjustable and wide in application range. The technical scheme is that the conveniently-used tool shovel for the garden comprises a large connecting rod, a guard plate, a large rotating shaft, a large shovel blade, a small shovel blade, a holding rod, a left inversed T-shaped slide block, a left wedged block, a left insertion block, a right inversed T-shaped slide block and the like; the upper part of the large connecting rod is embedded in the middle of the guard plate; a long groove which is penetrated left and right is formed in the lower middle part of the large connecting rod; and a large guard groove which is penetrated left and right is formed in the lower part of the guard plate. The conveniently-used tool shovel for the garden, disclosed by the invention, can be flexibly regulated due to the provision of the shovel blades with different specifications, so that it is convenient to dig large and small pits, and the tool shovel is wide in application range, beneficial to the increment of pit digging efficiency, simple in structure, convenient to use and easy to produce.

The invention relates to a blood drawing auxiliary chair, in particular to a blood drawing auxiliary chair for medical pediatrics. The technical problem of the invention is to provide the blood drawing auxiliary chair for the medical pediatric department, which can automatically wipe povidone iodine on the hand of a child. According to the technical scheme, the blood drawing auxiliary chair for the medical pediatric department comprises a seat, rotary tables, guide plates, first sliding plates, armrests, a first fixing plate and the like, the rotary tables are rotationally arranged on the left side and the right side of the rear portion of the seat, the guide plates are arranged on the tops of the rotary tables, the first sliding plates are slidably arranged in the guide plates, and the armrests are arranged on the front sides of the first sliding plates; first fixing plates are arranged on the upper portions of the armrests. The position of the handrail can be adjusted according to the placing position of the hand of a child, the handrail can be rotated to enable the first fixing plate to rotate, and therefore the hand of the child can be conveniently placed.

The invention discloses a braking mechanism, a braking device and anchoring equipment. The braking mechanism comprises a force application part, an adjusting part, a transmission part and a base, and the force application part is used for applying force during braking; the adjusting part is used for adjusting a hydraulic pump to provide different braking forces; one end of the transmission part is connected with the force application part, and the other end of the transmission part is connected with the adjusting part; the base is provided with a locking part, the force application part, the adjusting part and the transmission part are all connected with the base, and the locking part is used for locking the force application part to be located at different positions. The force application part drives the transmission part to rotate around a rotating part, so that the adjusting part drives the hydraulic pump to provide different braking forces, the braking force requirements of different environments are met, and the situation that single braking force causes the fluctuation of anchoring equipment and damages a captive balloon is avoided.

The invention discloses an acousto-optic alarm structure for a riverway water level exceeding a warning line, and relates to the technical field of water conservancy monitoring. The acousto-optic alarm structure comprises a floating plate, a fixed bottom plate, a metal drill bit, a lubricating assembly and a fixed sliding rod, a through hole is formed in the rectangular face of the floating plate, the fixed sliding rod is inserted into the through hole, the top end of the fixed sliding rod is fixedly connected with a top plate, and the bottom end of the fixed sliding rod is fixedly connected with the fixed bottom plate; the lubricating assembly is fixedly connected to the position, corresponding to the through hole, of the floating plate, a connecting rod is fixedly connected to the bottom of the rectangular center of the fixed bottom plate, and a metal drill bit is fixedly connected to the bottom of the connecting rod. According to the invention, a lubricating agent containing box convenient for automatically filling a lubricating agent is fixedly connected to the corresponding position of the fixed sliding rod, a rotating rubber roller drives the lubricating agent to reciprocate on the rotating plate at the bottom of the containing box through the connecting rod in the rotating process, and the lubricating agent is smeared to a rod body of a lubricating column; and the problem that the lubricating column is rusted is effectively solved.

The invention provides a drinking water storage purifier and a storage purifier combination, relates to the technical field of water purification equipment, and solves the technical problems that inlet tap water is stored in a non-pressure manner, no backup water is prepared after water is cut off, and water is easily turbid as water is injected into a container from top to bottom in the prior art. The drinking water storage purifier comprises a container body for storing water and a purified water outlet pipe, wherein the container body comprises a water inlet formed in the lower part of theside surface of the container body, an upper water outlet in the upper part, a water cut-off standby water outlet in the lower part of the side surface and a sewage outlet in the bottom; a first valve, a second valve and a third valve are arranged at the openings respectively; the purified water outlet pipe comprises a purified water outlet end, a first water inlet end and a second water inlet end; the water inlet, the upper water outlet, the first water inlet end and the purified water outlet end form a normal water passage, and a water cut-off standby passage is formed by the water cut-off standby water outlet, the second water inlet end and the purified water outlet end. The drinking water storage purifier and the storage purifier combination are used for storing and purifying water flowing out of a tap water pipe.

The invention provides a signaling load equalization method and apparatus between RNCs. The method comprises the following steps: according to the signaling of each RNC in an RNC cluster pre-constructed in a certain area, determining a load scheduling-out RNC, and according to an edge weight value of an RNC connected with the load scheduling-out RNC, determining a load scheduling-in RNC; according to a pre-constructed linear relation model of the load scheduling-out RNC about signaling loads and RRC connection establishment request frequency and a pre-constructed linear relation model of the load scheduling-in RNC about the signaling loads and the RRC connection establishment request frequency, calculating a load scheduling-out amount and a load scheduling-in amount which satisfy a load equalization principle; according to the load scheduling-out amount and the signaling load of the RNC, caused by each base station where the load scheduling-out RNC is installed, determining M base stations needing to be moved into the load scheduling-in RNC; and moving the M base stations to the load scheduling-in RNC so as to realize load equalization between the RNCs in the RNC cluster.

The invention relates to a transfusion stand for medical pediatrics, in particular to an easy-to-use mobile transfusion stand for medical pediatrics. The technical problem is: to provide an easy-to-use mobile infusion stand for medical pediatrics that does not need an accompanying person to hold the infusion bag and infusion bottle by hand and is easy to move. The technical solution of the present invention is: an easy-to-use mobile infusion stand for medical pediatrics, including a base, a universal wheel, a friction plate, a first large connecting rod, a second large connecting rod, an inverted trapezoidal plate, a large set tube, the first big spring, the second big spring, lifting rod, etc.; there is a large groove in the middle of the bottom of the base, and several universal wheels are connected to the bottom of the base, and the universal wheels are arranged on the outside of the large groove. An easy-to-use mobile infusion stand for medical pediatrics provided by the present invention can not only move flexibly, but also adjust the height conveniently, without the need for the accompanying personnel to hold the infusion bag and the infusion bottle, and can avoid sore.

The invention discloses a system for delivering network services and a method for controlling the delivered services. In the system, an overload message reporting module and an overload recovery message reporting module are set on a client server, and an overload message processing module is set on a main server. module and overload recovery message processing module. The method includes: the client server reports an overload alarm message to the main server, and the main server stops or reduces the service volume sent to the client server according to the message; the client server reports an overload recovery message to the main server, and the main server recovers according to the message. The traffic delivered to the client server. The master server receives processor occupancy rates reported by multiple client servers, selects the client server with the lowest processor occupancy rate, and delivers services to the client server.

The invention discloses an electrocatalytic oxidation biological promotion effect-improving device, relates to the technical field of electrocatalytic oxidation, and aims to solve the problems of poorwater purification effect and low resource recycling rate when some existing electrocatalytic oxidation devices are used. A protection structure is installed on one side of a main body structure, a supporting rod is arranged on one side of the protection structure, a limiting structure is installed above the main body structure, a protection door is arranged on the front end face of the main bodystructure, a pressure gauge is installed on the surface of the protection door, and an air pressure sensor is arranged on one side of the pressure gauge. A handle is installed on one side of the airpressure sensor, a motor is arranged in the main body structure, a micro-electrolysis reactor is installed on one side of the motor, a pipe body is arranged on one side of the micro-electrolysis reactor, a sealing layer is installed on the inner wall of the pipe body, and an oscillator is arranged on one side of the sealing layer, a water filtering film is installed on one side of the oscillator,and a pressure valve pipe is arranged on one side of the water filtering film.

The invention discloses a method for building and repairing a dam of a flooded paddy field, and relates to the field of agricultural production and water conservancy construction. By using the method, a water storage function of the flooded paddy field is fulfilled, the natural wetland of the Dazhou can be recovered, the water level of the flood peak of a river is reduced, flood damage of the river of the Dazhou is reduced, and functions of flood storage and drought control are fulfilled. The dam of the flooded paddy field consists of Z-shaped plates (1), field dam flood storage plates (2), a planting stepped water gate (3), a flood storage inclined plate trumpet-shaped water gate (4) and connecting plates (5). Before raining, the water gates are opened, and clear water in the flooded paddy field is drained; during raining, the water gates are closed, flood is stored, the water level of the flood peak of the river is reduced, and the quantity of muddy sand in the flood is reduced; and the rainwater can be stored by the flooded paddy field at all seasons, by using the rainwater, planting, cultivation and drought control can be carried out, and functions of the natural wetland of the flooded paddy field of the Dazhou can be recovered.

The invention relates to a heating medium temperature regulation and control method of a heating station. The heating medium temperature regulation and control method comprises the following steps of S1, periodically evaluating whether heating medium regulation and control are needed or not, wherein an evaluating method is that whether an adjustment condition is met or not is evaluated based on the difference value of outdoor temperature average values of two adjacent evaluation periods and the difference value of the target room temperature and the actual room temperature, and if the adjustment condition is met, heat medium regulation and control are needed; S2, if the adjustment condition is met, the heating station starts to adjust the temperature of a heating medium, and first adjustment is carried out according to a certain adjustment amplitude; S3, after a certain time interval T', whether second adjustment is needed or not is judged; and S4, when the second adjustment is needed, the second adjustment is carried out according to a certain amplitude, and the amplitude of the second adjustment is smaller than that of the first adjustment. According to the heating medium temperature regulation and control method, on-demand heat supply and accurate heat supply are realized.

The invention discloses a high-safety intelligent finished alcohol storage device which comprises a shell, a cover and a temperature controller. Evenly-distributed storage grooves are arranged on theinner side of the shell, and a sponge pad is arranged in each storage groove. A temperature measuring instrument is mounted at the position, on one side of the storage grooves, in the shell. A liftinggroove is formed in the position, on one side of each storage groove, in the shell, an adjusting pull rod is mounted on the inner side of each lifting groove, and an adjusting knob is mounted on thesurfaces of the adjusting pull rods. The cover is mounted on one side of the shell through hinges, the temperature controller is mounted on the inner side of the cover, the input end of the temperature controller is electrically connected with the output end of the temperature measuring instrument through a wire, and a refrigerator is mounted at the position, on one side of the temperature controller, of the inner side of the cover. According to the high-safety intelligent finished alcohol storage device, through a series of structures, the device has the advantages of being convenient to moveand carry, high in intelligent degree, high in safety and the like in the finished alcohol storage process.

A noiseless automobile headrest capable of stretching and retracting up and down comprises a headrest rod capable of being arranged at the top of an automobile seat and a headrest frame shell capableof moving up and down along the headrest rod. The top of the headrest rod extends into the headrest frame shell. The noiseless automobile headrest is characterized in that a locking sheet capable of being buckled in grooves in the sides of the headrest rod and an unlocking block capable of pushing the locking sheet to be separated from the grooves are arranged in an inner cavity of the headrest frame shell, one end of the unlocking block is in linkage with a button transversely extending into the inner cavity of the headrest frame shell, one end of the locking sheet abuts against the unlockingblock, the other end of the locking sheet is connected with the inner wall of the headrest frame shell through a reset device, and a noise elimination structure capable of eliminating noise when thelocking sheet is clamped in the corresponding grooves is further arranged between the locking sheet and the corresponding grooves. The noiseless automobile headrest has the beneficial effects that thestructure is simple, unlocking efficiency is high, labor is saved in the unlocking process, a locating effect is good, and use is quite convenient; unlocking and locating synchronism is good, the headrest ascends and descends smoothly, and the situation that the headrest is stuck is avoided; and the noise elimination structure can eliminate the noise generated when the locking sheet is clamped inthe corresponding grooves.

The invention relates to the technical field of spiral conveyors, in particular to a spiral conveyor convenient to transport. The spiral conveyor comprises a conveying pipe and a base, the conveying pipe comprises a motor base, a front pipe, a middle pipe and a tail pipe, the front pipe is fixed to the outer wall of one side of the motor base through bolts, connecting grooves are formed in one end of the front pipe and one end of the middle pipe, connecting blocks connected in the connecting grooves in an inserted manner are welded to the other end, away from the corresponding connecting groove, of the middle pipe and one end of the tail pipe, and flange plates are welded to the outer wall of one end of the front pipe, the outer walls of the two ends of the middle pipe and the outer wall of one end of the tail pipe. The spiral conveyor has the beneficial effects that the conveyor can be assembled and spliced, the conveyor is convenient to disassemble and assemble, then the conveyor is convenient to transport, the angle of the conveying pipe can be adjusted, then the height of a discharging port can be adjusted, so that the conveyor is suitable for material receiving tables with different heights, the application range is wider, and water can be sprayed into the conveying pipe through a water outlet groove.