40results about How to "Comfort adjustment" patented technology

The invention relates to an intelligent electric control system for a nursing bed. The intelligent electric control system is characterize by comprising a main engine module, a hand-holding device module, a display module, a bedstead movement driving module, a pillow adjustment drive module, a back adjustment drive module, a hip adjustment drive module, a leg adjustment drive module, a portioning door drive module, a sprinkler control module, and a body posture adjustment module for bathing. Through the intelligent electric control system, a patient can be subjected to adjustment in aspects of movement, turning over, sitting, sleeping, reading, relieving the bowels and showering, so that the somatic function of the patient can be protected, the life quality of the patient is improved, and the personal hygiene is facilitated; through the intelligent electric control system, the modules are matched for use, so that the comfortable adjustment effect is achieved; an intelligent motor is adopted for driving, so that the degree of automation is high, the use is convenient, and the popularization and application in the market are facilitated.

The invention discloses a cooling caravan utilizing combination of evaporative cooling and wind-solar hybrid power generation technologies. The cooling caravan comprises a rest zone and an indirect-direct evaporative cooling unit. A secondary vent is arranged on the top wall of the indirect-direct evaporative cooling unit, and a wind power generator unit and a solar panel are respectively arranged on two sides of the secondary vent. A sunshade plate is arranged on the top of the rest zone of the cooling caravan horizontally, and one end of the sunshade plate is connected with the top wall of the indirect-direct evaporative cooling unit. Multiple rows of seats for rest are arranged in the rest zone of the cooling caravan, each row of the seats for rest is connected with the indirect-direct evaporative cooling unit through a cool water pipe. A primary-air duct connected with the indirect-direct evaporative cooling unit is arranged above the seats for rest horizontally, and provided with radiator air supply outlets. Outdoor regenerative solar energy and wind energy are combined with the evaporative cooling technology, so that temperature can be reduced effectively while energy consumption can be saved.

The invention provides a power generation door hinge, and belongs to the field of house decoration hardware. The power generation door hinge is characterized in that during an opening and closing process of a door, part of mechanical energy of the torque of the door is converted into electric energy through a piezoelectric effect to supply charging power to batteries of intelligent locks and the like; besides, the amount of generated power is in direct proportion to the using frequency, so that the cruising ability of the batteries of the intelligent locks and the like is greatly improved; andchanging and maintenance of the batteries are reduced or even omitted. Meanwhile, according to the power generation door hinge provided by the invention, vibration energy caused by building shaking,people walking and the like in an ambient environment can be converted when the door is opened or closed, so that additional battery charging power is provided. Meanwhile, the damping torque of the door during opening and closing can be effectively adjusted by the power generation hinge, so that the operation comfort of door opening and closing is adjusted. The power generation door hinge is especially applicable to hotels, intelligent houses and other application places.

The invention discloses an automobile seat comfort level adjusting device. A seat cushion is arranged on an automobile seat and comprises an outer surface layer and a sponge layer located below the outer surface layer, an inflation and deflation layer is arranged below the sponge layer, an air inlet of the inflation and deflation layer is connected with an air pump, an air outlet of the inflationand deflation layer is connected with a valve, the device is provided with a control module, and the control module outputs drive signals to the air pump and the valve. Through the originally-createdinflation seat cushion and a backrest, the comfort level of the seat is adjusted though inflation and deflation, the requirement of a user for the comfort level is met, the device can be produced in aunified mode, feelings are different, meanwhile, different users are memorized through a memorization function, and the comfort level of the seat is automatically adjusted.

This invention is about a repeated pedaling assistant bicycle. It includes the frame, the braking mechanism, the back driving wheel, the back wheel bearing, the tyres, the pedals which is fastened to the pedaling handles, the fan-like forward meshing wheel which meshes the gearing one-way flywheels. On each side of the frame, there a pedaling handle and pedals, the fan-like forward meshing wheel and the one-way flywheel among which the pedal is fixed on the front of the handle and the fan-like forward meshing wheel on the back, in the part between them are some pinning holes, in the frame are some handle pins. Through the pinning holes and the pins, the handles can be knuckled on the frame. The fan-like forward meshing wheel is structured with inward gearing hoops or roller chain section of intrados, the outside circle of the one-way flywheel are gear wheel or chain wheel, the pedaling handles are jointed with the top surface or the outside circle surface of the fan-like forward meshing wheel, and on the edge of the pedals are some edge hooks. This invention is simple and feasible with a light structure, and it works efficiently and rides comfortably with a character of anti-shocking and anti-tire-bursting.

The invention relates to a bicycle of the ambulation style. It contains the frame of the bicycle, the braking mechanism, the back annulus for driving, the back-annulus axes, the tyre, the footplate is fixed on the stepping handle, the fan-shaped main gear wheel and the unilateralism flywheel with the gear wheel. The left and right sides of the frame of the bicycle sets up a stepping handle and its footplate, the gear wheel and the unilateralism flywheel. The footplate is fixed in the front of the stepping handle and the gear wheel is fixed in the back of the stepping handle. The handle body between two ends of the stepping handle has the pinhole and the handle pin connects on the frame of the bicycle and hinge-joints on the frame of the bicycle by the pinhole and the handle pin. The outer circle of the unilateralism flywheel is the gear or the chain wheel. The footplate connects on the gear wheel. On the one side of the footplate are set up with the side-hamulus. The invention is easy and applied. It has the deft organization, the high efficiency transmission, the comfortable riding, the quakeproof and the defending bursting-tyre.

The invention relates to a mechanically-reciprocating eye healthcare instrument and a control method thereof. The mechanically-reciprocating eye healthcare instrument comprises a shell and is characterized in that a sighting target and a drive used for driving the sighting target to reciprocate back and forth are arranged in the shell. By the aid of the eye healthcare instrument, a user can watch the sighting target reciprocating back and forth to induce eye muscles to contract and relax to enable the eye muscles to get complete physical exercises, and the eye muscles can be healthy and strong after long-term use of the eye healthcare instrument. The control method of the mechanically-reciprocating eye healthcare instrument includes that the sighting target is controlled by the drive to reciprocate back and forth along the direction of optical axis, and accordingly adaption requirements of the user to different speeds of reciprocation of the sighting target can be met by using the drive to adjust the speed of the sighting target, and a mechanically reciprocating type focusing function is realized.

The invention relates to a knee joint massager, in particular to a knee joint pressing massager for a patient with rheumatism. The knee joint pressing massager for the patient with rheumatism has theadvantages of being capable of preventing body fatigue and enabling the massage force to be consistent. According to the technical scheme, the knee joint pressing massager for the patient with rheumatism comprises a base, first supports, rotating rods, wheels, an arc-shaped hollow frame, an arc-shaped sliding rod, an arc-shaped sliding sleeve, a first hollow pipe and the like, wherein the first supports are fixedly connected to the left side and the right side of the bottom of the base, the rotating rods are connected to the first supports in a rotating mode, and the wheels for moving the baseare arranged at the rear parts of the rotating rods. According to the knee joint pressing massager, a motor is started to rotate clockwise or anticlockwise, so that legs of the patient with rheumatism can swing up and down, so that the legs of the patient with rheumatism can be stretched by means of the continuous repeated operation, and therefore the purpose of exercising knee joints of the patient can be achieved; and a third spring, a fourth spring and a fifth spring play a role in buffering, so that the comfort degree of swing the legs can be adjusted.

The invention provides a recovered afterheat and compressed steam driven absorption heat pump device. The device comprises three parts of an afterheat recovery system, a steam compression system and an absorption heat pump system; industrial afterheat is recycled; the afterheat is used for low-pressure flash evaporation of working medium water; and a steam compressor recompresses steam to drive the absorption heat pump device to achieve dual effects of afterheat recovery and building air conditioning. The absorption heat pump system driven by recovery of the industrial afterheat is used for conditioning of building air to realize winter heating and summer refrigeration, so that the people comfort requirements can be met, the comprehensive utilization of the industrial afterheat can be realized, the environmental pollution in heating seasons is reduced, the industrial afterheat is effectively recovered, the energy utilization efficiency is improved, and the environmental pollution problem caused by traditional fire coal heating is prevented.

The invention discloses a traditional Chinese medicine cupping jar being convenient to use. The traditional Chinese medicine cupping jar comprises a cupping jar body. The cupping jar body is in a hollow interlayer structure composed of an outer wall and an inner wall. The interior of the cupping jar is equipped with an inner cavity formed by the inner wall. The bottom of the cupping jar is provided with a circular opening. A cupping jar edge is formed by an outer edge of the circular opening. The bottom of the cupping jar edge is provided with a sealing compact lip made of rubber. The traditional Chinese medicine cupping jar also comprises an air exhaust device communicating with the inner cavity of the cupping jar body and a medicine injection device. The air exhaust device enables the inner cavity of the cupping jar body to form negative pressure so that cupping treatment is realized. The medicine injection device is used for injecting medicine into the inner cavity of the cupping jar body in order to realize treatment through a medicine jar. When the traditional Chinese medicine cupping jar is used for cupping treatment, medicine jar treatment through medicine is achieved so that treatment effect is further improved. Safety is reliable and stable. Through an air-pressure regulation valve, degree of vacuum of the inner cavity of the cupping jar is regulated. The cupping jar is used more flexibly and conveniently. Different treatment needs are met. The traditional Chinese medicine cupping jar is simple in operation, convenient in application and suitable in popularizationand application.

The invention discloses a multifunctional medical rehabilitation nursing bed convenient to store. The multifunctional medical rehabilitation nursing bed convenient to store comprises a supporting mechanism, a bed body mechanism and a storage mechanism, a bed tail fixing plate is fixedly installed on the left side of the top surface of the storage mechanism, a rotary bed plate is movably installedon the right side of the bed tail fixing plate, and a movable bed plate is movably installed on the right side of the rotary bed plate. According to the multifunctional medical rehabilitation nursingbed convenient to store, the top of a rotating block rotationally connected with the top of a bearing is fixedly connected with a rotating bed plate movably installed on the right side of the bed tailfixing plate, and under the rolling action of balls arranged on the periphery of the inner surface of the bearing, the rotary bed plate can conveniently rotate leftwards and rightwards; and the top of a pulley rotationally connected to the center of the surface of an installation block is slidably connected with a drawing plate movably installed in a groove, the drawing plate can be drawn out, one end of the drawing plate makes contact with the ground through a folding device movably connected to one end of the outer side of the drawing plate, when a patient needs to get out of bed, manual assistance is not needed, labor intensity is reduced, and time is shortened.

The invention discloses a hydraulic excavator capable of adjusting composite movement compatibility. The hydraulic excavator is characterized in that a first pilot oil circuit is used as a two-position three-way valve switch to control pilot, so that a second pilot oil circuit partially returns to an oil tank while the generated maximal pressure is reduced; a shift motion of a valve core of a controlled master control valve is shortened; the flow of the valve core of the master control valve is reduced; the speed of a corresponding actuating element, such as an oil cylinder, is slowed down, and an effect that an actuating element of the first pilot control is prior to an actuating element of the second pilot control is generated. A combined logic priority valve is added to the hydraulic excavator; when the master control valve is not provided with the logic priority valve and the compatibility of the two actuating elements needs to be adjusted, an external combined logic priority valve module can be adopted to improve the pilot oil circuit of the master control valve; the hydraulic excavator is convenient to debug and improve, and short in period; the combined logic priority valve is installed, and different specifications of orifice discs are matched to adjust the comfort of the loading operation.

The invention discloses an infusion set. A lower base is arranged at the position, close to a plug, of an infusion pipe, a supporting frame is arranged on the lower base, an upper support is arranged on the supporting frame, three fixing screws are arranged on the upper support in the radial direction, and an infusion bag or an infusion bottle is hung on the upper support. A dropper is arranged on the infusion pipe, an air inflow pipe is arranged on the dropper, a temperature adjuster is arranged on the portion, at the lower end of the dropper, of the infusion pipe, a speed adjusting valve is arranged on the portion, below the temperature adjuster, of the infusion pipe, a needle base is arranged at the tail end of the infusion pipe, and a needle is arranged on the needle base. The flow speed of liquid medicine can be conveniently adjusted through opening and closing of a flow hole in a valve element; by means of a pressure stabilizing valve, the dripping speed of the liquid medicine can be adjusted during rescue according to requirements, and then rapid infusion can be achieved. The infusion bottle or the infusion bag is conveniently fixed, and use convenience is greatly improved; by means of the temperature adjuster, the temperature of the liquid medicine can be well adjusted in a water bath mode, and infusion comfort of the infusion set is improved.

The invention discloses a sand painting art design and creation table. The sand painting art design and creation table comprises a base, a sand painting platform, a telescopic supporting column, an automatic sand painting brush and a mechanical arm, wherein the bottom of the base is provided with universal wheels, the sand painting platform is provided with a sand painting drawing board and a storage lattice used for containing sand, the telescopic supporting column is fixed between the base and the sand painting platform and can adjust the supporting height of the sand painting platform, theautomatic sand painting brush comprises a pen holder, an inlet, an outlet and a control valve, wherein the inlet and the outlet are formed in the pen holder, and the control valve is arranged in the pen holder and used for controlling the flow of sand discharging, and the mechanical arm is used for driving the automatic sand painting brush to move above the sand painting platform. The sand painting art design and creation table has the advantages that the sand painting platform is supported by the telescopic supporting column, the height of the sand painting platform can be adjusted by adjusting the expansion and retraction of the supporting column, so that the sand painting art design and creation table can be suitable for creators with different heights, the creation table is provided with the mechanical arm, the mechanical arm can automatically draw sand painting, and the interestingness is stronger.

The invention discloses a corner folding device for hardware. The corner folding device comprises a base, the upper end of the base is fixedly connected with a telescopic rod, the upper end of the telescopic rod is fixedly connected with a telescopic block, the surface of the telescopic block is connected with a telescopic sleeve in sliding and sleeved manners, the outer side of the telescopic sleeve is fixedly connected with a first handle, an anti-falling block is fixedly connected to the position of an opening in the lower end of the inner side of the telescopic sleeve, and the inner side of the anti-falling block is closely attached to the surface of the telescopic rod; and the inside of the telescopic block is provided with a groove, the inner side of the groove is fixedly connected with a spring, the other end of the spring is fixedly connected with a bayonet, the inside of the telescopic sleeve is provided with a through hole, and the surface of the bayonet is connected to the inner side of the through hole in sliding and sleeved manners. The corner folding device for the hardware can position a cylindrical rod piece and then clamp the rod piece through a squeezing plate, the height of a clamping base can be positioned, and adjustment of the comfort level is facilitated according to the body height of a worker.

The invention provides a cupping, which belongs to the technical field of medical equipment. It solves the troublesome problem of the existing cupping operation. The cupping pot includes a tank body with an open lower end, a piston is slidably connected in the tank body, and the outer edge of the piston is against the inner wall of the tank body, a guide hole is opened at the center of the end surface of the tank body, and a pull rod is slidingly inserted into the guide hole , the inner end of the pull rod is connected to the upper end surface of the piston, and the pull rod is provided with a positioning block that can fix the pull rod when the piston moves upwards, and the pull rod is also equipped with a positioning block that can adjust the vacuum degree in the tank when the pull rod is fixed. Regulator for adjustment. The cupping cup is easy to operate, and can adjust the degree of vacuum inside, so it is more flexible to use.

The invention discloses a cooling caravan utilizing combination of evaporative cooling and wind-solar hybrid power generation technologies. The cooling caravan comprises a rest zone and an indirect-direct evaporative cooling unit. A secondary vent is arranged on the top wall of the indirect-direct evaporative cooling unit, and a wind power generator unit and a solar panel are respectively arranged on two sides of the secondary vent. A sunshade plate is arranged on the top of the rest zone of the cooling caravan horizontally, and one end of the sunshade plate is connected with the top wall of the indirect-direct evaporative cooling unit. Multiple rows of seats for rest are arranged in the rest zone of the cooling caravan, each row of the seats for rest is connected with the indirect-direct evaporative cooling unit through a cool water pipe. A primary-air duct connected with the indirect-direct evaporative cooling unit is arranged above the seats for rest horizontally, and provided with radiator air supply outlets. Outdoor regenerative solar energy and wind energy are combined with the evaporative cooling technology, so that temperature can be reduced effectively while energy consumption can be saved.

The supporting frame comprises a supporting plate, a supporting frame is fixedly installed in the middle of the upper end of the supporting plate, an adjusting assembly is slidably installed in the supporting frame, and the displayer is fixedly installed at the left end of the adjusting assembly. Two shading assemblies are fixedly installed at the right end of the displayer in a front-back symmetry mode, and a plurality of clamping grooves distributed in an annular array mode are formed in the outer surface of the supporting plate. Through the arranged adjusting assembly and the shading assembly, a user can rotate the displayer to debug the angle of the displayer according to needs, the displayer drives a rotating block to rotate on the outer surface of a rectangular block, and then the displayer drives a second folding plate to rotate on the outer surface of a fixing bolt; and the fixing bolt drives the first folding plate to rotate in the connecting block, so that the angle of the display can swing up and down, and the comfort of the display can be adjusted.

The invention discloses a sand painting art design and creation table. The sand painting art design and creation table comprises a base, a sand painting platform, a telescopic supporting column, an automatic sand painting brush and a mechanical arm, wherein the bottom of the base is provided with universal wheels, the sand painting platform is provided with a sand painting drawing board and a storage lattice used for containing sand, the telescopic supporting column is fixed between the base and the sand painting platform and can adjust the supporting height of the sand painting platform, theautomatic sand painting brush comprises a pen holder, an inlet, an outlet and a control valve, wherein the inlet and the outlet are formed in the pen holder, and the control valve is arranged in the pen holder and used for controlling the flow of sand discharging, and the mechanical arm is used for driving the automatic sand painting brush to move above the sand painting platform. The sand painting art design and creation table has the advantages that the sand painting platform is supported by the telescopic supporting column, the height of the sand painting platform can be adjusted by adjusting the expansion and retraction of the supporting column, so that the sand painting art design and creation table can be suitable for creators with different heights, the creation table is provided with the mechanical arm, the mechanical arm can automatically draw sand painting, and the interestingness is stronger.

The invention relates to the technical field of furniture industry and discloses a sunken mechanical stretching device bracket for a functional sofa. The bracket comprises a chassis, the top of the chassis is movably connected with two transverse rods, the two transverse rods are located on the two sides of the circle center of the cross section of the bottom of each transverse rod respectively, the distances between the two transverse rods and the circle center are equal, and the left sides of the upper surfaces of the transverse rods are movably connected with oblique plates. According to the invention, the backrest assembly, the fixing pin, the telescopic assembly, the transverse rod and the supporting frame are matched; when the telescopic assembly and the backrest assembly extend; themoving positions are always positioned on the circumference of the same circle; the telescopic assembly and the backrest assembly are arranged on the left side and the right side of the circumferencerespectively, the balance of the functional sofa is guaranteed, the probability that the sofa touches objects around the sofa in the stretching process is reduced, the heavy object is installed in the chassis, the fourth gravity center is located in the middle of the chassis, and the stability of the functional sofa is improved.

The invention relates to the technical field of the furniture industry, and discloses a support for a functional sofa sinking mechanical stretching device, including a chassis. The top of the chassis is movably connected with a transverse bar. The number of the transverse bars is two, and two transverse bars are The rods are respectively located on both sides of the center of the cross-section of the bottom of the transverse rod and are equally spaced from the center of the circle, and the left side of the upper surface of the transverse rod is movably connected with a diagonal plate. This functional sofa sinking mechanical stretching device bracket, through the cooperation between the backrest assembly, fixed pin, telescopic assembly, transverse rod and support frame, when the telescopic assembly and the backrest assembly are stretched, their movement positions are always located in the same circle. On the circumference, and located on the left and right sides of the circumference, the balance of the functional sofa is guaranteed, and at the same time, the probability of touching the objects around the sofa during the stretching process of the sofa is reduced, and heavy objects are installed through the inside of the chassis, and its center of gravity is four Located in the middle of the chassis, it improves the stability of this functional sofa.

The invention discloses a medical tool for the department of stomatology. The medical tool comprises a top device; the lower portion of the top device is fixedly connected with a bottom device; the top device comprises a movable structure and a limiting structure; the movable structure is arranged in the center of the inner end of the top device; the limiting structure is fixedly connected to the side end of the movable structure; the movable structure comprises a hydraulic machine, a mounting chuck, a matching frame and a transverse frame; the hydraulic machine is mounted at the top of the inner end of the movable structure; the lower end of the hydraulic machine is telescopically connected with the mounting chuck; the hydraulic machine and the mounting chuck are in limiting connection with the transverse frame; the side end of the transverse frame is fixedly connected with the matching frame; the limiting structure comprises a rotating shaft frame, a lead screw, a sleeve frame, a motor and a transverse block plate; and the rotating shaft frame is arranged at the bottom of the inner end of the limiting structure. The invention provides the medical tool for the department of stomatology, and the purpose of inner end connection is achieved through the arrangement of the top device.

The invention discloses a cabinet type air conditioning unit for a locomotive and belongs to the technical field of a railway vehicle air conditioner. The air conditioning unit comprises a cabinet body with a condensation cavity and an evaporation cavity, and is characterized in that a control panel is arranged on one side of the cabinet body, and a fresh air channel communicated with the evaporation cavity is arranged in the control panel. The air conditioning unit is advantaged in that 1, the control panel employs an external structure, and arrangement of all parts in the condensation cavityand the evaporation cavity in the cabinet body is facilitated; 2, the control panel is integrated with the fresh air channel so that fresh air can be introduced into the evaporation cavity conveniently, and heat of a control element in the control panel can be taken away while the integration degree is improved; 3, the control panel serves as a part of the cabinet body and is used for sealing oneside of the condensation cavity in the cabinet body, so cost of the cabinet body is reduced; and 4, the air conditioning unit is compact and reasonable in structure and convenient to manufacture andoverhaul, and the indoor environment comfort can be adjusted.

The invention discloses an intelligent mouse product, which comprises a mouse inner component, a first mouse outer frame and a second mouse outer frame, the mouse inner component is assembled in the first mouse outer frame, and the feature is that the first There is a slide plate at the bottom of the outer frame of the mouse, and a pair of chutes are arranged at the bottom of the slide plate and are respectively located at the left and right ends of the slide plate. A sliding body is installed in the pair of the chute, and the rack is fixed on the end surface of the sliding body. The first mouse The outer frame is fixed with a micro-driver on the opposite wall, the drive end of the micro-driver is fixed with a gear, the gear is engaged with the rack, the slider is fixed with the second mouse frame, and the bottom of the slide plate has four A sliding table, the bottom end of the sliding table is equipped with a sliding piece matching its size, and a supporting mechanism is arranged on the rear end surface of the first mouse outer frame. The invention is an automatic adjustment, through simple mechanical cooperation, the comfort can be adjusted, and the mouse is more intelligent.

The invention discloses a multifunctional worktable for agricultural machining. The multifunctional worktable for the agricultural machining comprises a worktable body; the bottom of the worktable body is fixedly connected with a protective shell; a positive-negative motor is arranged in the inner cavity of the protective shell; an output end of the positive-negative motor penetrates to the innercavity of the worktable body and is connected with a cam in a sleeving manner; first sliding rails are symmetrically and fixedly connected to the front side and the rear side of the inner cavity of the worktable body. According to the multifunctional worktable for the agricultural machining, through mutual cooperation of the protective shell, the positive-negative motor, the cam, a first sliding rail, a fixed rod, a first sliding block, a fixed block, a movable block, a placement plate, a limiting plate, an outer shell, a first pulley, a first electric telescopic rod, a second sliding rail, asupporting plate, a second sliding block, a supporting rod, a bearing rod, a second pulley, a fixed plate and a second electric telescopic rod, the problem that the existing worktable is single in function is solved; when the worktable body is used, the height of the worktable body can be adjusted according to the height of a user.

The invention discloses a medical device for the department of stomatology. The medical device comprises a top device; the lower portion of the top device is fixedly connected with a bottom device; the top device comprises a movable structure and a limiting structure; the movable structure is arranged in the center of the inner end of the top device; the limiting structure is fixedly connected to the side end of the movable structure; the movable structure comprises a hydraulic machine, a mounting chuck, a matching frame and a transverse frame; the hydraulic machine is mounted at the top of the inner end of the movable structure; the lower end of the hydraulic machine is telescopically connected with the mounting chuck; the hydraulic machine and the mounting chuck are in limiting connection with the transverse frame; the front end of a headrest (27) at the inner end of a head structure (17) is hinged to the center of a rotating shaft (19) through a hinge frame. According to the medical device for the department of stomatology, the purpose of inner end connection is achieved through the arrangement of the top device.

The invention discloses a liner structure of a bulletproof helmet and a manufacturing process thereof. The liner structure comprises a buffer layer and a comfortable layer; the buffer layer comprisesa front structure, a top structure and a rear structure, wherein the front structure adopts three elliptical structures with the same size and shape, which are unfolded backwards in a circular arc shape at equal intervals; the rear structure also adopts three elliptical structures with the same size and shape, which are unfolded forwards in a circular arc shape at equal intervals; the top structure is in an elliptical shape with a cross-shaped groove in the center; the buffer layer is connected by hook and loop fasteners to the inside of the helmet; and the comfort layer comprises seven groupsof single liner structures which are connected by hook and loop fasteners to the buffer layer. The liner structure is manufactured by adopting a special process, the structural design is simple and scientific, the impact buffering effect is excellent, the weight is light, the comfort degree of helmet fitting by a wearer is greatly improved, and the discomfort of the wearer is reduced; air flow inthe helmet is improved, and the temperature difference between the inside of the helmet and the outside world after the helmet is worn in different seasons and different environments is improved, sothat discomfort caused after the helmet is taken off is avoided, and the sweating frequency of a wearer is reduced.

A rapid transfer device for intensive care in the neurology department comprises a moving frame, a supporting frame is installed in the moving frame in a sliding fit mode, a driving device capable of driving the supporting frame to move front and back is arranged on the moving frame, first supporting shafts are rotationally installed on the two sides of the moving frame respectively, and second supporting shafts are arranged on one sides of the first supporting shafts respectively. The second supporting shafts are fixedly connected with the corresponding first supporting shafts through supporting rods, the elastic rollers are used for adjusting the tightness of the synchronous belts, a driving motor capable of driving the gear columns to rotate is arranged on the movable frame, and an adjusting device capable of adjusting the rotating angles of the first supporting shafts is arranged on the movable frame. The device is simple in structure and ingenious in conception, the gradient of the shovel plate can be adjusted, a patient can be conveniently transferred up and down when the gradient is small, a guardrail is formed when the gradient is large, the patient is prevented from sliding off the shovel plate, meanwhile, the tightness of the synchronous belt and the comfort of the bearing surface can be adjusted, market requirements can be met, and the device is suitable for popularization.

The invention discloses a backrest capable of promoting blood circulation for office workers. The backrest comprises a cushion cover. A polyester fiber layer is arranged in the cushion cover. Via holes are arranged in the polyester fiber layer. Tourmaline is arranged in each via hole. The middle of tourmaline is provided with a through hole. A stop block is arranged on the lateral part of each through hole. A rubber band is arranged in each through hole. One end of each rubber band is connected to a button. The lateral part of each button is provided with a sleeve ring. A high resiliency sponge layer is arranged on the inner side of the polyester fiber layer. The inner side of the high resiliency sponge layer is provided with a down feather layer. The sleeve rings are arranged on the external side of the cushion cover. Through the polyester fiber layer, the high resiliency sponge layer, and the down feather layer, the breathability, supporting performance, and pressure reducing performance of whole backrest are strong, the blood circulation is promoted by the negative ions generated by tourmaline and infrared rays released by tourmaline; and through the rubber bands, stop blocks, buttons, and sleeve rings, tourmaline can be conveniently assembled and disassembled.