32results about How to "Avoid backflip" patented technology

The invention relates to the field of electrically-powered wheelchairs, and particularly discloses a balance stair-climbing wheelchair and a stair-climbing method thereof. The technical problems thatin the prior art, stair-climbing wheelchairs move unstably, have large impact and are expensive are mainly solved. The balance stair-climbing wheelchair is characterized by comprising a mechanical system, a track transmission module, an auxiliary wheel, a control sensor system and a whole machine skeleton mechanism, wherein the mechanical system comprises a chassis arranged on two sides of the balance stair-climbing wheelchair; the track transmission module is symmetrically installed on two sides of the chassis; the auxiliary wheel is arranged at the rear end of the balance stair-climbing wheelchair; the control sensor system is arranged in the mechanical system, and controls movement of the mechanical system in cooperation; and the whole machine skeleton mechanism is arranged above the mechanical system. A wheel-track compound scheme is adopted, the advantages of a wheel mechanism and a track mechanism are fully combined, when the balance stair-climbing wheelchair is used on a flat surface, the track transmission module is put away, the balance stair-climbing wheelchair can run like an ordinary electrically-powered wheelchair, and when the balance stair-climbing wheelchair encounters stairs or barriers, the track transmission module can be put down, so that the balance stair-climbing wheelchair conducts stair-climbing motion or passes over the barriers.

The invention relates to a pneumatic pole climbing robot. The pneumatic pole climbing robot comprises a hand clamping air cylinder and a leg clamping air cylinder which are connected through a waist air cylinder. The hand clamping air cylinder comprises an upper hand clamping air cylinder body and a lower hand clamping air cylinder which are connected through a steel plate. A small left holding air cylinder is arranged on a movable gripper on the left side of the upper hand clamping air cylinder body. A small right holding air cylinder is arranged on a movable gripper on the right side of the lower hand clamping air cylinder body. A foot clamping air cylinder comprises an upper foot clamping air cylinder body and a lower foot clamping air cylinder body which are connected through a connecting steel plate. A small left holding air cylinder is arranged on a movable gripper on the left side of the upper foot clamping air cylinder body. A small right holding air cylinder is arranged on a movable gripper on the right side of the lower foot clamping air cylinder body. The pneumatic pole climbing robot has the advantages that firstly, an obstacle crossing method is simple and easy to use; secondly, pneumatic transmission is adopted by the robot, and the pneumatic pole climbing robot is environmentally friendly and free of pollution; and thirdly, the robot surrounds a vertical pole when climbs the vertical pole, does not fall backwards, and is safe and reliable.

The invention discloses an end enclosure spinning backward-overturning preventing device. An adjusting frame comprises a horizontal adjusting plate, a vertical adjusting plate and two adjusting screws, wherein the vertical adjusting plate is positioned at one end of the upper surface of the horizontal adjusting plate and is perpendicular to the horizontal adjusting plate; and a pair of arc-shaped adjusting grooves of which concave arc surfaces are opposite are formed in the vertical adjusting plate. The horizontal adjusting plate is also provided with a pair of arc-shaped adjusting grooves of which concave arc surfaces are opposite. The arc-shaped adjusting grooves in the vertical adjusting plate correspond to the arc-shaped adjusting grooves in the horizontal adjusting plate. The two adjusting screws are respectively arranged in the arc-shaped adjusting grooves in the horizontal adjusting plate 1. By adjusting the position of a pressing wheel, the pressing wheel is in contact with a plate in spinning, presses the plate and is fed together with a rotating wheel; and the plate is forwards pushed by means of rolling friction, so that the aim of preventing the plate from backwards overturning is fulfilled, sliding friction between a copper block and the rotating plate is avoided, and the quality of a product is improved. The device has the characteristics of simplicity in installation, flexibility in angle adjustment and running stability and reliability, and can be reused in multiple products.

The invention discloses an adjustable wheelbase type electric transport vehicle, comprising a load frame, a front end of the load frame is provided with a head, a rear bridge frame is arranged below the load frame, a traveling wheel is installed on the rear bridge frame, and the travel wheel is connected with a Walking drive device, two rear axle slideways are symmetrically arranged on the carrier, and rear axle sliders are arranged in the two rear axle slideways. A rear axle support beam is fixedly connected between the two rear axle sliders, and the rear axle support beam is The rear bridge frame is fixedly connected; the rear bridge frame is provided with a distance-adjusting worm along the front and rear directions of the carrier, and a distance-adjusting worm wheel corresponding to the distance-adjusting worm is fixed on the rear axle support beam, and the distance-adjusting worm is connected with a distance-adjusting drive device; In the present invention, the rear bridge frame and the load frame are set to be slidingly connected, and the front and rear positions of the rear bridge frame are adjusted through the worm gear transmission, so as to achieve the purpose of adjusting the wheelbase, so that the center of gravity of the present invention is always kept between the traveling wheel and the steering wheel when carrying goods. It can effectively prevent the occurrence of back flipping.

The invention provides a child car anti-rear-turnover device, in particular to a safety protection device which prevents the child car from being turned over backwards due to the rear shift of the gravity center of the child in the usage process. The child car anti-rear-turnover device is characterized in that the child car anti-rear-turnover device is provided with a rear wheel frame; the rear part of the rear wheel frame is provided with an anti-turnover supporting column which is arranged into a whole with the rear wheel frame; alternatively, the anti-turnover supporting column is arranged at the lower part of the rear wheel frame by an installation plate. As two rear wheel frames of the child car are provided with the anti-turnover supporting columns, when the gravity center of the child moves backwards after the child is seated on the saddle or the ground surface is uneven or has a slope, the child car anti-rear-turnover device has supporting effect, prevents the child car from being completely turned over backwards, protects the physical body of the child against damage, and has safety and protection effect; meanwhile, the child car anti-rear-turnover device can prevent the child car from driving on the uneven ground with excessively large slope.

The invention relates to the technical field of sofa seats, in particular to a recliner with an anti-tipping function. The recliner comprises a telescoping mechanism, a base and an anti-tipping structure, wherein the telescoping mechanism is arranged on the base; the anti-tipping structure is connected with the base; the telescoping mechanism comprises a backrest assembly; the anti-tipping structure comprises an extension assembly, one end of the extension assembly is connected with the base, and the other end of the extension assembly extends out of the end, close to the backrest assembly, ofthe base. The problem of easy backward tipping of the recliner in the prior art is solved by arranging the anti-tipping structure, further, the anti-tipping structure can be controlled automatically,and user experience is improved.

The invention discloses a car seat heating structure good in heating effect. The car seat heating structure comprises a car body, a seat cushion, a seat backrest, a cooling circulating water tank and an engine, wherein the seat cushion and the seat backrest are arranged at the upper end of the car body, the cooling circulating water tank is arranged at the lower end of the car body, and the engine is arranged at the lower end of the cooling circulating water tank. A water outlet pipe and a backflow pipe are arranged at the two ends of the cooling circulating water tank correspondingly, the water outlet pipe is provided with a water suction pump and connected with the engine through a first connecting pipe, and the backflow pipe is connected with the engine through a second connecting pipe. A plurality of heating water pipes are evenly arranged in the seat cushion, one ends of the heating water pipes communicate with an inlet water distributing pipe, and the other ends of the heating water pipes communicate with an outlet water collecting pipe; the inlet water distributing pipe communicates with the first connecting pipe through a third connecting pipe, and the outlet water collecting pipe communicates with the second connecting pipe through a fourth connecting pipe.

The present invention discloses a hanging inverted chair. The inverted chair comprises a chair frame and a chair body, the chair body is arranged on the chair frame, and besides, the chair body can conduct a pitching rotation on the chair frame and assist getting upside down. A vibrator is arranged on the chair body for vibrating to remove urinary calculus for human body. An anti-back-tip supportis arranged at a bottom part of the chair frame to prevent the chair frame from tipping back. The chair body is provided with a waist and / or a leg fastening device. The hanging inverted chair has advantages of being simple in structure, convenient to use, little in space occupation, large in pitch angles, good in urinary calculus removing effects and low in cost, can effectively controlling incidence of calculus and at the same time can strengthen body in a long-term use.

The invention relates to an automatically walking cleaning system, belonging to the technical field of intelligent cleaning equipment. The automatically walking cleaning system comprises a cleaning robot and a base station for providing supply to the cleaning robot, wherein the base station is provided with an inclined guide plate; universal wheels, driving wheels and a mopping and wiping assembly are arranged at the bottom of a robot body of the cleaning robot; the universal wheels and the mopping and wiping assembly are oppositely arranged at the two ends of the bottom of the robot body; the driving wheels are arranged on the two sides of the robot body; the cleaning robot is provided with a balance weight part which is arranged at one end deviated to the universal wheel relative to center of robot body; and when the mopping and wiping assembly enters the base station through the inclined guide plate in a direction facing the base station, a distance between the gravity center of the cleaning robot and the center of the robot body in a horizontal direction is within a preset range. According to the invention, the distance between the gravity center of the cleaning robot and the center of the robot body in the horizontal direction is within the preset range, the gravity center of the cleaning robot is close to the driving wheels as much as possible, the driving wheels abut against the inclined guide plate with enough abutting force, and thus, the phenomena of slipping, slope sliding and the like of the driving wheels are reduced.

An antiskid apparatus for an electric power overhead aluminium stranded wire insulating ladder is disclosed. The insulating ladder mainly comprises two ladder rods and multiple ladder pedals made from insulating materials, wherein the insulating ladder is provided with the antiskid apparatus; the antiskid apparatus comprises two channel steel strips that are fixed on the ladder rods through supporting frames on the back surfaces of the channel steel strips respectively, and slot openings are formed in the front surfaces of the channel steel strips respectively; an anti-skid fixed mechanism is mounted in a channel steel internal slot cavity through a spring; the anti-skid fixed mechanism comprises a fixed grasping hook plate with a fixed grasping hook and a movable grasping hook plate with a movable grasping hook, and the fixed grasping hook plate and the movable grasping hook plate are arranged in opposite up and down, wherein the fixed grasping hook plate and the movable grasping hook plate are semicircular bodies respectively, and a fixing ring capable of annularly fixing the electric power overhead aluminium stranded wire in the fixing ring is formed after the fixed grasping hook plate and the movable grasping hook plate are arranged in opposite. The antiskid apparatus has the characteristics of simple structure, convenience in use, low investment, and capabilities of effectively preventing the insulating ladder erected on the electric power overhead line from side sliding, downward sliding, and backward turning, and preventing the electric power overhead line from being damaged due to friction in the use process of the insulating ladder, and the like.

The invention relates to a patient rehabilitation wheelchair with an adjustable wheel inclination angle, and belongs to the field of medical instruments. The patient rehabilitation wheelchair with the adjustable wheel inclination angle comprises two longitudinal beams which are fixedly connected through a cross beam, a seat is fixed on the cross beam, front fork frames are hinged below the front portions of the two longitudinal beams respectively, rear fork frames are hinged below the rear portions of the two longitudinal beams respectively, front wheels are installed at the lower ends of the front fork frames, and rear wheels are installed at the lower ends of the rear fork frames. The whole gravity center can be lowered during climbing and stair climbing, the attachment area of tires and steps can be increased in a deformation mode, it can be guaranteed that enough friction force exists between the tires and the steps during stair climbing, slipping is not likely to happen, meanwhile, the axle distance can be adjusted, the span is increased, stability is improved, backward turning is not likely to happen, safety is high, and the wheelchair is suitable for application and popularization.

The invention provides profile stretch bending equipment. The profile stretch bending equipment comprises: a working platform, a left swing arm assembly and a right swing arm assembly, used for clamping and stretching the two ends of a profile; and swing arm oil cylinder assemblies. The left swing arm assembly and the right swing arm assembly are located on the two sides of the working platform correspondingly. The swing arm oil cylinder assemblies are connected with the left swing arm assembly and the right swing arm assembly. The working platform comprises a platform base, a base, a pressingmechanism used for longitudinally positioning the profile, a horizontal positioning mechanism used for positioning the profile in the horizontal direction, and a tangent point positioning mechanism used for positioning a tangent point when the profile is subjected to stretch bending. Each of the left swing arm assembly and the right swing arm assembly comprises a swing arm base body and a material pulling arm mechanism arranged on the swing arm base body. The swing arm oil cylinder assemblies are connected with the swing arm base body so as to drive the swing arm base body to swing. The profile stretch bending equipment can achieve high-precision and high-efficiency stretch bending of the profile and has the advantages of being easy and convenient to operate and high in practicability, and therefore the stretch bending quality of the profile is guaranteed.

The invention relates to a backward-leaning self-adaptive high-performance office chair which comprises a base, a chair back support, a bottom plate, armrest supporting rods, a headrest, a cushion, a backrest, a roller device and armrests. The bottom plate is slidably mounted on the base, the armrests are mounted on the armrest supporting rods, the cushion is mounted on the bottom plate and moves along with movement of the bottom plate, and the roller device is fixedly connected to the base; the linkage mechanism is connected among the base, the chair back support, the bottom plate and the armrest supporting rods and comprises a connecting transmission part, a first transmission connecting rod, a second transmission connecting rod and a linkage assembly, and the connecting transmission part is connected with the chair back support, connected with the armrest supporting rods through the first transmission connecting rod and connected with the bottom plate through the second transmission connecting rod; and the bottom plate is slidably installed on the base through the linkage assembly. According to the chair, when the chair back leans backwards, the bottom plate is pushed forwards, the angle between the chair back and the bottom plate can be adjusted, the gravity center of a body can move forwards along with the bottom plate, the chair is prevented from turning backwards, safety is guaranteed, and the use experience of a user can be effectively enhanced.

The invention discloses a safety bracket of a computer host. The safety bracket comprises a base, a pair of side baffle fences, a pull handle and a shockproof wheel assembly, wherein the pair of side baffle fences is arranged on the two sides of the base respectively and adopts n-shaped structures; a rectangular groove is formed in the center of the base, the bottom of a computer host case is embedded into the rectangular groove, and a plurality of convex points are uniformly arranged in the rectangular groove; the pull handle is arranged at the rear end of the base and adopts an n-shaped structure; the shockproof wheel assembly comprises roller wheels, connecting pieces and shock absorption springs; one end of each shock absorption spring is connected to the bottom of the base, and each connecting piece is connected with the other end of the shock absorption spring and each roller wheel respectively. According to the safety bracket, the computer host case can be randomly and stably moved through the shockproof wheel assembly, the shock in the moving process can be removed, and the computer host case can be prevented from tilting laterally or rearwards.

The invention belongs to the technical field of cattle raising, and particularly relates to a quantitative water drinking device for cattle breeding. The quantitative water drinking device comprises a driving seat, wherein a connecting rod I is fixedly connected to the surface of the driving seat, a water drinking basin is fixedly connected to the upper surface of the connecting rod I, a supporting plate is fixedly connected to the upper surface of the water drinking basin, a water storage barrel is fixedly connected to the upper surface of the supporting plate, a water guide pipe is rotationally installed in the water storage barrel, a leakage hole is formed in the surface of the water guide pipe, and a quantification barrel is fixedly connected to the end, located outside the water storage barrel, of the water guide pipe. The water storage barrel is matched with the water guide pipe, the leakage hole, the quantification barrel and a water discharge pipe, the water guide pipe is rotationally installed, the rotation improves the flexibility, the leakage hole is conveniently aligned with the water discharge pipe, when the water guide pipe rotates, the leakage hole is aligned with the water discharge pipe and coincides with the water discharge pipe, the quantification barrel is inverted, and water in the quantification barrel can flow back and be discharged from the leakage hole and the quantification pipe till being completely discharged, so that quantitative water is provided for the calves to drink.

The invention discloses a control method and a control system for preventing backward tipping of a dump truck bed. The control method for preventing backward tipping of the dump truck bed comprises the steps of calculating a front axle loading rate of a dump truck and difference between a lifting moment of a hydraulic cylinder and a rotating moment of the truck bed; when the front axle loading rate does not exceed a first threshold and the difference between the lifting moment of the hydraulic cylinder and the rotating moment of the truck bed does not exceed a second threshold, enabling an alarm to give an alarm and enabling a display device to prompt a danger character; and when the front axle loading rate does not exceed the first threshold and the difference between the lifting moment of the hydraulic cylinder and the rotating moment of the truck bed exceeds the second threshold, forbidding the dump truck to lift. According to the control method and the control system for preventingbackward tipping of the dump truck bed, a risk that the hydraulic cylinder is drawn out during the lifting operation of the dump truck and a risk that the truck bed is excessively tilted backwards can be reduced, the service life of the hydraulic cylinder can be prolonged, and the safeties of the truck and a driver can be guaranteed.

The invention discloses a safe and comfortable automobile seat capable of saving space. The automobile seat comprises a seat main body with a backrest and a seat backrest, wherein the seat main body is fixed on an automobile body; a plurality of heating casing pipes are horizontally arranged in the seat main body; heating cores are arranged inside the heating heating casing pipes; a circular placement frame is arranged at the back of the backrest; a sundry storage barrel is embedded in the placement frame. According to the invention, as the circular placement frame is arranged at the back of the backrest, and the sundry storage barrel is embedded in the placement frame, the storage space at the back of the seat is enlarged, furthermore sundries can be placed separately; in winter, the automobile seat can be heated by the hot air from the automobile air conditioner or by the heating cores; in summer, the automobile seat can be quickly cooled as the cool air from the automobile air conditioner can be introduced into intake pipes; meanwhile, a triangular anti-collision fixed rack can prevent the automobile seat from turning backwards in case of a heavy accident, so as to ensure the driving safety for people.

The invention provides a control method and device of an intelligent mobile device, equipment and a medium. The method comprises the following steps: detecting the inclination angle of the intelligent mobile equipment in real time in the climbing process of the intelligent mobile equipment, and if the inclination angle exceeds a preset auxiliary gravity center adjustment angle, controlling the gravity center of the intelligent mobile equipment to move forwards. According to the technical scheme, the inclination angle of the intelligent mobile equipment is detected in real time in the climbing process of the intelligent mobile equipment, and when the inclination angle exceeds the preset auxiliary gravity center adjusting angle, the gravity center of the intelligent mobile equipment can be controlled to move forwards, so that the intelligent mobile equipment is prevented from turning backwards in the climbing process, and the safety of the intelligent mobile equipment in the climbing process is improved.

The invention discloses a safe and comfortable automobile seat. The automobile seat comprises a seat main body and a seat backrest, wherein the seat main body is fixed on an automobile body; a plurality of heating sleeves are transversely arranged in the seat main body; heating cores are arranged in the heating sleeves; electrode joints electrically connected with an automobile battery are arranged at the two ends of the heating cores; a plurality of air inlet pipes are longitudinally arranged in the seat main body; air inlets of the air inlet pipes are communicated with an outlet of an automobile air conditioner; air outlets of the air inlet pipes are communicated with an automobile carriage; a triangular anti-collision fixed bracket is arranged at the back end of the seat backrest; a lower fixed sheet is welded at the lower end of the triangular anti-collision fixed bracket; a lower fixed hole is formed in the lower fixed sheet; an upper fixed sheet is welded at the upper end of the triangular anti-collision fixed bracket; and a lower fixed hole is formed in the upper fixed sheet.

The present disclosure provides a control method for an intelligently driven truck, the method comprising: collecting angle information of a vehicle frame, angle information of a cargo box, position of the cargo box and movement direction of the cargo box, and collecting the angle information of the vehicle frame according to the collected angle information and the angle information of the cargo box to judge the state of the cargo box, and control the cargo box according to the state of the cargo box and the angle information of the collected frame, the angle information of the cargo box, the movement direction of the cargo box, and the position of the cargo box. In the present disclosure, the angle information of the vehicle is collected from time to time, and combined with the position information of the cargo box, it can not only avoid the inaccuracy of the position feedback of the cargo box due to the chattering / error of the angle of the cargo box, but also can accurately identify the position of the cargo box; it can also monitor the frame in real time. When the pitch angle or roll angle exceeds the limit threshold, the lifting or lowering of the bucket is stopped, which greatly improves the performance of the cargo box control of the intelligent driving vehicle.

The foldable wheelchair comprises a chassis, a seat assembly provided with a seat rod and a backrest rod, and a supporting assembly provided with an upper front supporting rod, a lower front supporting rod and a rear supporting rod, the backrest rod is rotationally connected with the seat rod and extends downwards from the joint to form an extending part, and the two ends of the upper front supporting rod are rotationally connected with the middle of the seat rod and the middle of the lower front supporting rod respectively. The two ends of the lower front supporting rod are rotationally connected with the middle of the extending part and the front portion of the chassis respectively, and the two ends of the rear supporting rod are rotationally connected with the lower end of the extending part and the rear end of the chassis respectively, so that the two four-bar mechanisms between the seat rod and the chassis can be in linkage, operation is convenient, and comfort is good; the height of the seat rod during unfolding is changed, the adaptability is good, the chassis does not participate in folding, the safety is good, the lower front supporting rod, the rear supporting rod, the upper front supporting rod and the extending part are sequentially arranged in the left-right direction, the lower front supporting rod can abut against the rear supporting rod and / or the seat rod to form supporting during unfolding, one-way self-locking is achieved, and the structure is simple.

The invention discloses a control method and a control system for preventing a dump truck from tipping back. When the axle load rate does not exceed the first threshold, and the difference between the lifting torque of the hydraulic cylinder and the turning torque of the vehicle does not exceed the second threshold, the alarm will give an alarm, and the display device will prompt the word "dangerous"; When the load ratio of the front axle does not exceed the first threshold, and the difference between the lifting torque of the hydraulic cylinder and the turning torque of the vehicle box exceeds a second threshold, the dump truck is prohibited from being lifted. The control method and control system can reduce the risk of cylinder pulling out of the hydraulic cylinder during the lifting operation of the dump truck and the risk of overturning of the car box, improve the service life of the hydraulic cylinder, and ensure the safety of the vehicle and the driver.

The invention discloses a health-care auxiliary standing frame. The health-care auxiliary standing frame comprises bottom rods; supporting rods are fixed to the tops of the two ends of each bottom rod, and mounting rods are fixed to the centers of the opposite sides of the supporting rods; handrail rods are fixed to the tops of the opposite sides of the supporting rods, connecting rods are fixed to the opposite sides of the front ends of the bottom rods, and fixing rods are fixed to the centers of the connecting rods; and universal wheels are arranged at the bottoms of the fixing rods, mounting grooves are formed in the rear ends of the bottom rods, and the connecting rods are slidably connected to the interiors of the mounting grooves. The standing frame is composed of the bottom rods, the supporting rods, the mounting rods, the handrail rods, the fixing rods, the connecting rods, metal rods and L-shaped rods, and the universal wheels are arranged at the bottom; and the waist of a patient can be restrained by using hand pumps, air bags, clamping rings, baffle rings, rubber pipes, rubber pads and elastic bandages, and meanwhile the back of the patient is supported by using the rubber pads, so that side turning, back turning and front turning of the standing frame is prevented, and the safety of people during use of the standing frame is guaranteed.

The invention discloses a car back row seat anti-collision frame structure high in safety factor. The car back row seat anti-collision frame structure comprises anti-collision hollow pipe bodies, upper fixing pieces and lower fixing pieces. The upper fixing pieces and the lower fixing pieces are arranged at the two ends of the anti-collision hollow pipe bodies respectively. Upper fixing holes are formed in the upper fixing pieces. Lower fixing holes are formed in the lower fixing pieces. Springs are arranged in the anti-collision hollow pipe bodies. The car back row seat anti-collision frame structure has the advantages that a car seat can be effectively prevented from being turned backwards into a boot, the life safety of people is guaranteed, when a large accident happens, even if the anti-collision hollow pipes are broken due to large collision force, the springs arranged in the anti-collision hollow pipes have buffering and secondary-protection functions, and the safety coefficient is high.

The invention discloses an electric wheelchair capable of conveniently crossing obstacles and preventing toppling. The electric wheelchair comprises a main body; a power cavity is formed in the main body; a motor is fixedly arranged in the power cavity; and motor shafts in bilateral symmetry are rotatably arranged on the motor. According to the invention, the height of front wheels can be controlled through a front wheel control mechanism, so that the wheelchair can cross the obstacles, and the practicality of the wheelchair is improved; through balancing devices on the two sides, the wheelchair is prevented from turning backwards or toppling forwards due to the fact that the inclination of the wheelchair is increased when the wheelchair crosses the obstacles, so that the safety of the wheelchair is improved; and through a gravity center fine adjustment device, when the wheelchair runs on a bumpy road surface, the gravity center is always kept at a relatively horizontal position, so that the comfort level of taking the wheelchair is improved.

The invention discloses a vertical type electric baking oven, which comprises a heating device, a lifting device (24) and an oven seat device, wherein the oven seat device comprises a baking tray (15), a baking tray support (17), a rotary table (18), an inner gear plate (19), a rolling ball (20), a transmission gear (26), a motor (27) and a base (21), wherein a rolling ball rotating track (29) is arranged on the base (21); the rotary table (18) and the inner gear plate (19) are rotatably arranged on the base (21); the rolling ball (20) is arranged on the inner gear plate (19); the rotary table (18) is arranged on the top part of the rolling ball (20) and can be relatively rotated; the motor (27) drives the inner gear plate (19) to rotate through the transmission gear (26); the baking tray (15) is placed on the baking tray support (17) fixed with the rotary table (18); a lower connecting part (28) connected with the lifting device (24) is arranged on the base (21); the heating device is connected onto the lifting device (24). After adopting the structure, the vertical type electric baking oven has the advantage of simple and reasonable structure, good heat insulation effect, convenience in hygiene, capability of adjusting height at will, capability of being automatically rotated and shifted to rotate, and the like.

The invention discloses a wheelchair which comprises driving wheels, a driving motor, a seat frame and a backrest, wherein the driving wheels and the driving motor are arranged below the seat frame; the driving wheels are in transmission connection with the driving motor; the driving motor is fixedly connected with the seat frame; a pedal plate is arranged at the front end of the seat frame and fixedly connected with the seat frame; wheelchair armrests are arranged on the seat frame and fixedly connected with the seat frame; a handle controller is arranged on one of the wheelchair armrests and in electric connection with the driving motor; handles are arranged on the backrest and fixedly connected with the backrest; an anti-overturn support is arranged at the rear part of the seat frame; anti-overturn wheels are arranged below the anti-overturn support. The electrically propelled wheelchair is convenient to operate, and stable and reliable in operation, adopts motor driving, and effectively saves the manpower.