714results about How to "Increase activity space" patented technology

The invention provides an intelligent human body sign mobile phone monitoring system, which comprises a human body sign acquisition module, a monitoring mobile phone and a cloud server, wherein the human body sign acquisition module is used for monitoring the body sign signal of a monitored object; the monitoring mobile phone is used for receiving body sign signals of the human body sign acquisition module, preprocessing the body sign signals so as to eliminate baseline drift to obtain preprocessed body sign data, storing the preprocessed body sign data and analyzing the body sign data; and the cloud server is used for receiving an equipment recognition code of the monitoring mobile phone as well as preprocessed sign signals and alarm signals, storing the body sign data and the alarm signals in corresponding items, in a database, of the monitored object, analyzing the body sign data and the alarm signals so as to generate medical advice information and transmitting the medical advice information to the corresponding monitoring mobile phone and preset associated terminal equipment. The monitoring system disclosed by the invention has the characteristics of mobile operation, simple and convenient use, long-term continuous work supporting, diagnosis result intelligent display, abnormal physiological status alarm, wireless data transmission and the like.

The invention provides a method of redirection walking in virtual reality. The method of redirection walking in virtual reality includes the steps: by means of a position sensor, acquiring the practical position coordinates of the user in the practical activity space; acquiring the current position information and the predicted position information of the user in a virtual scene; according to the pre-stored size information of the practical activity space, the practical position coordinates and the current position information and the predicted position information in the virtual scene activity space, and using the redirection walking algorithm to calculate the position coordinates of the next step of the user in the practical activity space; and according to the position coordinates of the next step, guiding the user to perform redirection walking in the practical activity space. The method of redirection walking in virtual reality can acquire the walking path information of the user in the practical activity space according to the virtual scene, and can guide the user to walk freely in the virtual world without exceeding the boundary of the real world, thus enlarging the activity space of the virtual world, and realizing the mapping from the limited practical space to the virtual infinite space.

The invention discloses a lifting platform for electric power overhaul. The lifting platform comprises a device base. Support arms are hinged to the two sides of the device base. A lifting rack is arranged in the middle of the device base and matched with a set of lifting oil cylinders arranged on the device base. A lifting platform body is arranged on the lifting rack. Side guard bars are arranged at the two sides of the lifting platform body correspondingly. A controller is arranged on one of the side guard bars. The other end of the lifting platform body is hinged to a step plate guard bar through a pin shaft. The lifting platform body is connected with an extension rack through an extending-and-contracting rod and an extending-and-contracting oil cylinder. The lower portion of the extension rack is connected with a movable vehicle through a support pillar. The lifting platform for electric power overhaul can ascend and descend flexibly; the lifting platform body can be extended, the working area of the lifting platform body is expanded, and overhaul personnel can obtain a larger activity space; much convenience is provided for electric power overhaul; and meanwhile, the device base can be in stable contact with the ground without sliding, so that safety is high.

The invention discloses a fixture for tensile bonding strength test of solid propellant and coating, belonging to the field of test of explosive performance. The fixture comprises two sets of fixtures which are used symmetrically and have the same structure. Before test, the two ends of a propellant test sample are bonded on the small-diameter end faces of two coating test sample joints through a test adhesive respectively; two connecting rods are correspondingly and fixedly connected to pull rods on both sides of a tensile testing machine; two fixing seats are in threaded connection with the connecting rods; and the large-diameter ends of the two test sample joints and a limiting groove are fixed in corresponding fixing seats through two compression nuts in cooperation with two pairs of semicircular wristlets. According to the fixture, the problems of easy damage to the surface of the test sample and easy slippage and looseness of the test sample during low-temperature test, existing in the conventional tensile test fixture, are solved. Meanwhile, the test fixture has the advantages of simple structure, light weight, small size, convenience for clamping, high centering accuracy and the like.

The invention discloses an interaction control device and an interaction control system oriented to an intelligent indoor assisting system, which are used for controlling postural transform of an intelligent wheel chair body among sitting, laying and standing, the motions of the intelligent wheel chair and automatic jointing between the wheel chair body and a bed body. The device comprises an embedded upper computer, a motion control unit, a postural transform control unit, a non-visual sensing unit, a visual sensing and processing unit and a human-computer interaction unit. Under the cooperative control of each unit, the intelligent wheel chair body can work in the three operating modes of wheel chair assistance, postural transform and bed body automatic-entry jointing, and simultaneously can visually display and monitor the working condition information of the wheel chair, the physiological parameter information of a human body and ambient environment information. The invention also discloses a visual servo-based method for the intelligent wheel chair to automatically enter the bed body for jointing by using the interaction control device.

The invention belongs to natural enemy insect predacious stink bug raising technology field, more specifically a method for raising natural enemy insect southern minute pirate bug indoor in great deal and a raising box. The raising method comprises the steps of southern minute pirate bug adult and nymph raising; the existing southern minute pirate bug raising method is improved based on the biological characteristics of the southern minute pirate bug; and a method for raising the predacious natural enemy minute pirate bug in different states indoor is provided. According to the raising method, a suitable oviposition environment for the minute pirate bug is provided and the male and female pairing number can be increased; the cannibalism among the nymph and non-natural death are effectively reduced; the nymph survival rate and the imago obtaining rate are raised; and the tedious procedure of individual test tube raising, replacing and cleaning is simplified. According to the invention, the survival rate in each state is high; the procedure is simplified; the demand for raising the southern minute pirate bug indoor in great deal is satisfied; the enough insect source for deep indoor research is provided; at the same time, the key technology support for predacious stink bug propagation and raising and application in agricultural biological control are provided.

The invention provides an intelligent electrocardiographic monitoring system. The intelligent electrocardiographic monitoring system comprises an intelligent electrocardiographic remote monitoring terminal, a cloud server and a mobile terminal. The intelligent electrocardiographic remote monitoring terminal collects an electrocardiographic signal of a user and conducting filtering processing and amplifying processing on the electrocardiographic signal, and sends the processed electrocardiographic signal to the cloud server; after receiving the processed electrocardiographic signal, the cloud server analyzes the electrocardiographic signal to calculate a heart rate of the user, and sends alarm information to the intelligent electrocardiographic remote terminal and the mobile terminal which is bound with the user when it is judged that the heart rate of the user is abnormal; the intelligent electrocardiographic remote monitoring terminal sends alarm prompt to the user to inform the user of timely taking processing measures; the mobile terminal is used for receiving electrocardiographic data of the user to monitor an electrocardiographic state of the user in real time, and taking a processing measure timely after receiving alarm information. According to the intelligent electrocardiographic monitoring system, an wireless Internet transmission technology and embedded type system design are integrally applied, and a patient can obtain a dynamic electrocardiographic signal in normal movement conditions with big freedom of movement.

The invention relates to portable marine vehicle. It includes hull unit, interlock unit, and power unit. The hull unit has many distant hulls each of which has hollow bow and stern. The interlock unit has at least one foot stool and fished beam set. The power unit is respectively set in the stern to drive the hull and control the direction. The invention uses many hulls design to supply prefer incline righting capacity, more activity space through the interlock and hull units.

The invention provides an automatically controlled wearable chair. The automatically controlled wearable chair comprises a human body support module and an amplitude variable module, and further comprises an intention sensing control module and a rotation support module. The rotation support module comprises a rotation support plate connected with a foot sole support component, a motor and a driving gear. The intention sensing control module comprises a foot sole pressure sensor installed on the contact surface of the foot sole support component and the foot sole of the human body, a thigh pressure sensor installed on the contact surface of a thigh support component and thighs of the human body, and a microprocessor for judging the human body intention according to the data of the foot sole pressure sensor and the thigh pressure sensor and controlling the amplitude variable module and the rotation support plate to operate. The automatically controlled wearable chair is capable of, through the added intention sensing control module, executing the corresponding control measures according to the intention of a user. The gravity center moving range of the human body is enlarged by the rotation support module, so the upper body activity space of the human body is increased. After the intention sensing control module and the rotation support module are combined, the adaptability between the user and the chair is improved.

The invention belongs to the technical field of stockbreeding machines, relating to small stepped type natural mating breeding equipment for breeding poultry. The small stepped type natural mating breeding equipment comprises a small stepped type natural mating cage and a manure removing device, wherein the small stepped type natural mating cage is formed by combining small stepped type natural mating cage units comprising six chicken cages and two three-layer trapezoid cage frames; every two adjacent stepped type natural mating cage units form a feeding unit; a top-layer chicken cage rear net is opened up and side nets of each layer of two adjacent chicken cages are opened up; and all cage tools of the whole cage groups respectively form a two-in-one large cage. The manure removing device comprises a manure removing machine driving mechanism and two manure removing machines which are respectively arranged below a bottom net of the top-layer chicken cage and bottom nets of two layers of chicken cages; and the manure removing machine driving mechanism can be used for simultaneously driving the two manure removing machines to alternatively carry out manure removing progress and manure removing return, so that the manure removing operation at the top of the cage is implemented. According to the small stepped type natural mating breeding equipment disclosed by the invention, the requirements of welfare breeding of the poultry and natural mating of the breeding poultry can be met; and the small stepped type natural mating breeding equipment is matched with feeding, drinking, trench manure removing and egg collecting systems and is suitable for large-scale intensive breeding poultry farms having high requirement on environmental standard.

The invention discloses a paper diaper. The front end of an absorption core layer of the paper diaper is provided with at least one branch, and the branches can be combined and folded to form a three-dimensional structure. A coating and the front end of base cloth can also be folded into a three-dimensional structure. The three-dimensional structure at the front end of the paper diaper can provide a space for the scrotum of a baby boy and is favorable for heat dissipation of the testis. The rear end of the paper diaper can be folded to form a three-dimensional structure to accommodate the excrement of the infant. The paper diaper, only the rear end of which is provided with the three-dimensional structure, can be used for a baby girl. The paper diaper can be used as an adult paper diaper.

The invention discloses a spray painting robot arm component which comprises a supporting arm, a wrist, a tail end arm, a first driving mechanism and a second driving mechanism. The first driving mechanism comprises a first transmission shaft, a first bevel gear connected with the first driving mechanism through splines, and a second bevel gear meshed with the first bevel gear. The second driving mechanism comprises a second transmission shaft, a third bevel gear connected with the second driving mechanism through splines, a fourth bevel gear meshed with the third bevel gear, a fifth bevel gear coaxially and back to back arranged with the fourth bevel gear, and a sixth bevel gear meshed with the fifth bevel gear to drive the tail end arm. The first bevel gear and the third bevel gear are coaxially arranged, and the second bevel gear and the fourth bevel gear are coaxially arranged. The spray painting robot arm component is completely sealed, and a channel for a pipeline connected to a spraying mechanism to penetrate through is formed inside the spray painting robot arm component. The spray painting robot arm component can prevent the pipeline from being exposed to spraying environment and from being polluted. The invention also provides a spray painting robot using the arm component.

The invention discloses an earthquake life-saving bed belonging to the technical field of life preservers. The earthquake life-saving bed comprises a dishing bed board, wherein the dishing bed board is rotationally connected with a metal bed body, the bottom of the dishing bed board is cooperatively provided with a bed board strut bar, the other end of the bed board strut bar is sheathed and connected with a bottom guide bar, and the bottom guide bar axially passes through the bottom of the metal bed body; one end of an expansion link is hinged and connected with the bottom guide bar, and the other end is connected with the tip of a circular arc protective cover which is cooperatively arranged on two sides of the metal bed body; and a triggering system is cooperatively arranged on the metal bed body. The earthquake life-saving bed can automatically close the circular arc protective cover during earthquake to seal the bed body, particularly in the middle of the night, which not only adds moving space but also prevents external impact. The earthquake life-saving bed has good practicability, can purely mechanically and fully-automatically finish earthquake life saving function, does not need to be driven by electric power and has high safe performance. Good pressure-resisting structure can bear great pressure and has good protective space.

The invention discloses a coordinate system calibration and positioning method, system and equipment of a robot and a medium. The coordinate system calibration method comprises the steps that first conversion matrixes of flange coordinate systems of a flange under multiple poses and a base coordinate system of a base are acquired respectively; a second conversion matrix of a first target sphere coordinate system of a first target sphere and a second target sphere coordinate system of a second target sphere is obtained; first position data of a tail end point of a tail end tool in the flange coordinate systems and second position data of the end point in the first target sphere coordinate system are obtained; and a third conversion matrix of the base coordinate system and the second targetsphere coordinate system is calculated according to the first position data, the second position data, the first conversion matrix and the second conversion matrix. Through setting of the target spheres, the calibration process is simple and easy to operate, after calibration is completed, robot space positioning is achieved through the second target sphere on a mechanical arm base, the positioning precision is improved, and the moving space of a mechanical arm is enlarged.

The invention relates to a robot, in particular to a multi-degree-of-freedom amphibious spherical robot. The multi-degree-of-freedom amphibious spherical robot comprises a spherical shell, four mechanical legs and a control driving system. According to the technical scheme, the spherical shell comprises a semispherical upper cover, two quarter spherical shell bodies and a round partition plate; the four mechanical legs are symmetrically installed on the bottom face of the round partition plate at 90-degree intervals; the control driving system is installed in the semispherical upper cover and is sealed through a waterproof inner shell. According to the multi-degree-of-freedom amphibious spherical robot, land propelling, underwater propelling and the spherical appearance structure are effectively combined, and the underwater robot is made to have the high maneuvering capability in the land, water and transition environments.

The invention provides a lithium ion solid conductor. The lithium ion solid conductor has a chemical formula (1) as follows: Li6PS5ClzM1-z, wherein M is Br or I, and z is more than or equal to 0.1 butless than 1. In order to solve the problems of widespread chemical instability between an inorganic lithium ion solid conductor material and metal lithium and lower conductivity of lithium ions, thelithium ion solid conductor provided by the invention is characterized in that the chlorine element in a sulfide electrolyte Li6PS5Cl is replaced by the doped halogen elements (Br, I) with larger atomic radiuses so as to acquire a novel sulfide electrolyte Li6PS5ClzM1-z, wherein M is Br or I and z is more than or equal to 0.1 and less than or equal to 1. A lithium ion transmission channel is widened, a multi-dimensional lithium ion transmission channel is formed, an activity space is increased and the conductivity of the lithium ions is promoted. The invention also provides a preparation method for the lithium ion solid conductor and an all-solid lithium battery.

The invention relates to the technical field of interior decoration of transport vehicles, in particular to a novel vehicle interior arrangement form used in a taxi. The invention solves the problems that the taxi has insufficient luggage putting space and crowded and narrow passenger compartment space, is not convenient for disabled people to take and has personal potential safety hazards of a driver. The vehicle interior arrangement structure of the invention comprises a position space and a cab, wherein the position space is used for containing two rows of seats in the vehicle; the cab is arranged at the front side of the position space; clapboards are arranged at the back side of the seat of the cab and at one side facing a vice cab; the vice cab is designed to be a luggage putting region; a folding seat is arranged in the position of the clapboard at one side of the vice cab close to the cab; host and guest seats are arranged at the back seats in the vehicle; a double door is arranged at one side of the cab; and a single door is arranged at one side of the vice cab. The invention effectively ensures the safety of the driver, enables a wheelchair for disabled people to get on or get off the vehicle conveniently, and prevents the luggage from falling to passengers at the back seats to ensure the safety of the passengers.

The invention discloses a harmonia axyridia larva indoor industrialized culturing method. The method comprises the steps that eggs which are stored in 1-4 days from a cold storage, the eggs are gathered and placed in a hatching box to be hatched, initially hatched larvae are placed in culturing boxes to be cultured; a layer of filter paper is laid at the bottom of each of the culturing boxes, andthe culturing boxes are internally provided with silk-shaped filler to expand the moving range of the larvae; sufficient acyrthosiphon pisum is regularly placed in each culturing box, and horsebean seedlings with cut roots are fixedly placed until the larvae become chrysalides; the feeding of the acyrthosiphon pisum to the harmonia axyridia which becomes a chrysalis is stopped, and the emergence harmonia axyridia is cultured in an insect culturing cage for production. According to the method, industrialized culturing of the harmonia axyridia in the whole developing period is achieved to ensurethe uniformity of the hatching time, the pupation time and the emergence time, convenience is provided for manual concentration management culturing, the killing rate among the harmonia axyridia in the harmonia axyridia larva period is reduced, the duration of egg production of the harmonia axyridia is improved to obtain the adult harmonia axyridia with uniform developing duration and high-yieldeggs, and time and space of industrialized harmonia axyridia propagation are saved.

The invention discloses a multifunctional automatic rain erosion resisting tester with a movable workbench. The tester comprises a box body, a transmission system, an automatic lifting device, the workbench, a spraying device, a water supplying device and a control device, wherein the transmission system is mounted at the bottom of the box body; the automatic lifting device is connected with the transmission system through a V-shaped belt; the workbench is connected with a main shaft of the automatic lifting device through a flat key; the spraying device is fixedly mounted at the top of the box body and is connected with the water supplying system; the water supplying system and the control device are mounted at one side of the box body; the spraying device is used for simulating the influence to a materials under various rainfall environments when a test specimen is in high-speed running; the high-speed running of the workbench is realized through the transmission system; and the height of the workbench can be adjusted through the automatic lifting device. The tester disclosed by the invention is used for overcoming the defects of the existing tester that the rotating speed is low, the testing function is single and the workbench cannot be adjusted, and has the obvious advantages of being simple to operate, accurate in measurement, high in reliability, safe, stable, convenient to maintain and the like.

The invention belongs to the field of chemical equipment and particularly discloses a chemical reaction device for stirring. The chemical reaction device for stirring comprises a kettle body, wherein the inner wall of the kettle body is made of a nonferromagnetic material; a partition cavity is formed in the inner wall of the kettle body, a plurality of elastic assemblies are arranged in the partition cavity, each elastic assemblies comprises a spring and an elastic block which can be absorbed by a magnetic substance, and one end of the spring is connected to the elastic block while the other end of the spring is fixed to the inner wall of the partition cavity; and a driver which is fixed on a frame is arranged at the top end of a kettle cover, the driver is rotatably connected to a stirring unit located in the kettle body, the stirring unit comprises a stirring shaft, the stirring shaft is hinged to a plurality of stirring rods, and stirring magnetic blocks are fixed to the working ends of the stirring rods. According to the scheme, the device has the technical effects of being simple in structure and uniform to stir and enhancing the unsticking effect as the elastic blocks can vibrate repeatedly.

The invention provides an artificial aortic valve support implanted through a guide tube. The artificial aortic valve support comprises a support and an artificial valve. The support is weaved from an elastic-fiber-shaped material, is in a dumbbell structure, and comprises a head, a waist and a tail, and a layer of biocompatible film is covered on an outer surface of the head of the support, and a mounting anchor is mounted at the tail of the support. A conveying system for conveying the support is further provided and comprises an epitheca, an inner core, a loader, a push bar and a fixed head. The mounting anchor at the tail of the support is mounted on the fixed head, and the artificial aortic valve support is conveyed to an inner body through puncturing. The support is close to physiological anatomical structure and is capable of self-expanding separation, and an artificial bio-valve is adopted and is close to the functions of the artificial valve. And the conveying system can be slightly transformed from the conveying system of a heart disease stopper, so that apparatuses used for treating structural heart disease become standard and normal gradually, and meanwhile, resources are also saved and consumption is lowered.

Provided is an imitation snake search and rescue robot joint mechanism. The imitation snake search and rescue robot joint mechanism comprises two omnidirectional wheels and a parallel joint group, wherein the parallel joint group comprises a fixed platform, a moving platform, two UPS linear drivers and a PU linear driver. A joint has four degrees of freedom, and the four degrees of freedom are telescoping, pitching, yawing and rotating of omnidirectional wheels around the central axis of the imitation snake search and rescue robot joint. The imitation snake search and rescue robot joint mechanism can effectively combine the advantages of an imitation snake robot with the advantages of a wheel type robot, and the imitation snake search and rescue robot is made to not only have the advantages of having multiple degrees of freedom and being small in size, flexible in movement and high in environmental adaptability of the imitation snake search and rescue robot but also have the advantages of being high in movement speed and easy to control of the wheel type robot, the movement capacity of the imitation snake search and rescue robot is greatly improved, a foundation is laid for expansion of a movement gait of the imitation snake search and rescue robot, and the flexibility and adaptability of the imitation snake search and rescue robot in different environments can be effectively improved.

The invention relates to a voice coil motor, and in particular relates to a voice coil motor flat spring plate for communication tools and an assembly process thereof. The voice coil motor flat spring plate comprises upper and lower flat spring plates with the same whole shape and structure, wherein the upper flat spring plate is of a monolithic structure; the lower flat spring plate is of a separated structure; both the upper and lower flat spring plates comprise inner frames, outer frames and elastic parts; and the elastic parts are equichordal wavy elastic chords. The flat spring plate can prevent deformation of the upper and lower spring plates caused by rotation of the lens mobile carrier when the lens is screwed in and has the advantages of small occupied space, convenience in assembly, labor hour conservation, use stability and the like.

The invention discloses a selenium-rich beef breeding method. The selenium-rich beef breeding method comprises the following steps: planting and processing selenium-rich forage: applying selenium-containing farmyard manure to a grassland, sowing ryegrass and Chinese trumpet creeper in a mixed manner, and spraying a selenium-containing leaf fertilizer to obtain a selenium-rich feed; providing an oxtall for selenium-rich beefs: stacking the feed on an upper-layer oxtall, and breeding the beefs on a lower-layer oxtall; fattening the selenium-rich beefs: feeding the beefs with the selenium-rich feed; and slaughtering the selenium-rich beefs. As the selenium-rich forage is planted on the grassland and then prepared into the selenium-rich feed to feed the beefs, direct ingestion of sodium selenite is avoided, and an accident of selenosis cannot occur; and meanwhile, as the forage converts selenium absorption into the existence form easily absorbed by the beefs, selenium absorbed by the beefs is safe and reliable, the selenium content of the beefs reaches high indexes, and accordingly, the nutrition value of the beefs is effectively improved.

The invention provides a breeding method for rejected laying hens. As the rejected laying hens are stocked in a woodland, the activity space of the rejected laying hens is large, the rejected laying hens are lively and bold, the feather is glossy, and the meat is fresh and tender in flavor and chewy; the rejected laying hens are strong in physique and low in morbidity probability, and the chicken is further healthier; as the environment in the woodland is relatively close to an original ecological environment, insects and weeds in the woodland are relatively more in species so as to provide the rejected laying hens with abundant pure natural foods, so that the chicken is rich in various animal proteins, the consumption of feeds is further reduced, and the feeding cost can be lowered. The breeding method provided by the invention has the advantages that the rejected laying hens bred by the method are strong in immunity, healthy in body, low in fat content of chicken and rich in various animal proteins and vitamins, and digestive absorption of the chicken is facilitated; the chicken is good in color and luster, fresh and tender in flavor, free of fishy smell, high in nutritional ingredient, rich in fragrance, good in taste and chewy in meat.

The invention discloses a multi-probe and single-probe integrated test system and a multi-probe and single-probe integrated test method, which aim at solving the disadvantage of the existing antenna measurement system that measurement from a meter wave level frequency band to a millimeter wave level frequency band cannot be realized. The multi-probe and single-probe integrated test system is characterized by comprising a rotatable bearing platform, a multi-probe array device and a single-probe detecting device, wherein the multi-probe array device is positioned on one side of the bearing platform, and comprises a plurality of first probes which are distributed in a ring array and used for realizing frequency band detection between meter wave and millimeter wave levels; and the single-probedetecting device is positioned on one side opposite to the multi-probe array device, and comprises a second probe which can rotate around a tested object to form a detection arc surface and is used for detecting up-down extension of the meter wave level frequency band and the millimeter wave level frequency band. The multi-probe and single-probe integrated test system and the multi-probe and single-probe integrated test method realize the measurement of radiation feature data of the tested object from the meter wave level frequency band to the millimeter wave level frequency band, and are more convenient in measurement process.

The invention discloses a field snail processing and cleaning device, comprising a cleaning box, a water storage tank and a rack, wherein the rack is positioned at the side of the water storage tank;a top plate is installed at the top end of the rack; a drive motor is installed at the right end of the upper plane of the top plate; the left end of the drive motor is connected with a transmission shaft; a driving cam and a drive bevel wheel are installed on the transmission shaft; a sliding rail is arranged at the side of the driving cam; a sliding block is installed in the sliding rail, and amovable rod is connected with the bottom end of the sliding block; a fixing sleeve is installed in the middle of the cleaning box and extends into an inner cavity of the cleaning box; the movable rodis arranged in the fixing sleeve in a penetrating way, and a filter screen plate is installed at the bottom end of the movable rod. The field snail processing and cleaning device has the beneficial effects that the field snail processing and cleaning device can be used for effectively treating deposited dirt and floating stains and enables the deposited dirt and the floating stains to be taken away from the cleaning box by means of flowing of water flow, so that the residual stains are reduced during every flushing.

The invention relates to a light chair for an aviation passengers, which comprises chair legs, chair tubes, chair buckets and backrests, wherein the chair buckets and the backrests are integral to form a chair body; the chair legs and the chair body are fixedly connected with the chair tubes by hose clamps; and magazine boxes and dining tables are arranged on the backrests. According to the chair, component parts are decreased greatly and the weight of the chair is reduced; the integrated chair body is connected with the chair tubes by the detachable hose clamps, so that the structure is simplified and the structural strength and overall performance of the chair cannot be reduced; and the magazine boxes are arranged at the upper parts of the backrests, the lower parts of the backrests are arc, and the leg space of back row of passengers can be increased.

The invention relates to the field of concrete structure demolition, in particular to a large concrete structural body pre-supporting-free demolition method and aims at providing a large concrete structural body pre-supporting-free demolition method which is adopted to cut, break down and demolish concrete buildings without pre-installation of a large concrete demolition supporting frame. In the large concrete structural body pre-supporting-free demolition method, a large concrete structural body comprises a cover plate, a cross beam for supporting the cover plate and a supporting column for supporting the cross beam. The large concrete structural body pre-supporting-free demolition method comprises the following steps of (a) selecting the cover plate required to be demolished, performing oblique cutting on the cover plate in the cover plate thickness direction and hoisting the cover plate through a hoisting device; (b) selecting the cross beam required to be demolished and performing oblique cutting on the cross beam in the cross beam thickness direction and hoisting the cross beam through the hoisting device; (c) demolishing the supporting column. The large concrete structural body pre-supporting-free demolition method is easy to implement, practical and effective and especially suitable for the large concrete structure demolition construction.