66results about How to "Suitable for placement" patented technology

The invention provides a noise reduction structure for a washing type air purifier. The noise reduction structure for the washing type air purifier comprises a water tank, a water pump and a water spraying device, wherein a dummy plate is arranged in the water tank, the water pump is located below the dummy plate, the water spraying device is located above the dummy plate, an interval is arranged between the dummy plate and the inner wall on at least one side of the water tank, and a water feed pipe passes through the dummy plate. According to the noise reduction structure for the washing type air purifier, the dummy plate is arranged in the water tank, the water spraying device is arranged above the dummy plate, and then water sprayed out of the water spraying device can firstly drip on the dummy plate, the dummy plate is not completely contacted with the inner wall on the at least one side of the water tank, the slight interval is left between the dummy plate and the inner wall on the at least one side of the water tank, and then water on the dummy plate can flow to the inner wall of the water tank from the interval, and finally flows to the bottom of the water tank along the inner wall of the water tank, and furthermore a water impaction sound can hardly occur in the water tank, and then noise in the washing type air purifier can be effectively reduced, and influences are hardly caused to indoor environment, and therefore the washing type air purifier is suitably placed in a room.

The invention discloses a combined portable solar power supply which comprises a flexible solar cell group, a main shell in which a cavity structure is formed, and a rolling shaft which is arranged inside the main shell and can rotate around the shaft, wherein the flexible solar cell group is wound on the rolling shaft; the cavity structure is formed inside the rolling shaft; a battery box is detachably inserted into the cavity structure; and the battery box is provided with a charging input interface connected with the flexible solar cell group. The battery box of the power supply can be detached, is small in size, occupies a small space, is suitable for being put in a bag and is convenient to carry. In addition, according to the power supply, the solar cell group is rolled by use of the rolling shaft, is freely shrunk and conveniently positioned and is flexible to use; the solar cell group is manufactured by a lamination process, the positive and negative poles are led out by using an ultrathin wire, the bending capacity is high, and the product is compact in structural design; and moreover, a circuit board and a rechargeable battery are arranged in the battery box inside the rolling shaft with large space, the battery capacity is high, and the product is more reasonable in structure.

The invention discloses a visual sensor based remote drosophila monitoring system. The monitoring system comprises a solar power supply device, a drosophila trapping device and a control monitoring device; the solar power supply device is composed of a solar panel, a support frame and a solar battery; the drosophila trapping device comprises a top cap, a transparent communicating piece, a trapping bottle, a protective shell and a camera, and the top cap is connected with the trapping bottle through the communicating piece; the communicating piece is mounted in the protective shell, the camera is mounted on the inner wall of the protective shell, and a camera head of the camera faces the communicating piece; the control monitoring device comprises a Fit-pc microcomputer, a 3G (third-generation) communication module and a remote server, the remote server is connected with the Fit-pc microcomputer through the 3G communication module, and self-developed drosophila monitoring and counting software for realizing automatic monitoring and counting is mounted and runs in the Fit-pc microcomputer. The invention further discloses a monitoring method of the monitoring system and a drosophila monitoring and counting method. The monitoring system is simple and reasonable in structure, data are processed and analyzed in real time remotely, and intelligentization of drosophila monitoring is improved.

The invention relates to an air conditioner with wind outlet automatic gate. The air conditioner contains a heat exchanger and cabinet of fan. The cabinet is arranged with an inlet and an outlet, the outlet is arranged with an automatic gate. The automatic gate includes a frame bracket and boards' component, the frame bracket is embedded at the wind outlet of the cabinet, and it is arranged with driving motor, the two sides have sliding track. The board's component has gearing mechanism connected to the driving motor. When the air conditioner starts, the driving motor drives the board to slide along the frame bracket, opens the aperture; when the air conditioner is stopped, the driving motor drives the board to slide along the track reversely.

The invention relates to articles for daily use, in particular to a bactericidal toothbrush cup which can hold toothbrushes and can disinfect, sterilize and dry the toothbrushes. The bactericidal toothbrush cup comprises a cup body and a cup cover, wherein the cup body is internally provided with a bactericidal lamp, the middle part of the inside of the cup body is provided with a positioning device which is provided with a toothbrush holder, the toothbrush holder is provided with a plurality of toothbrush holes, and the cup body is provided with a circuit board and an access power supply. When the cup cover is opened, the power supply is automatically switch off, and when the cup cover is closed, the power supply is automatically switch on for sterilization, and the power can be automatically off when a set sterilization time is up.

The invention relates to a special prenatal diagnosis bed for a pregnant woman. The special prenatal diagnosis bed includes a counterweight base, a rotating motor and pregnant belly holding devices; the counterweight base is arranged on the body of the special bed; the rotating motor is fixed to the upper end of the counterweight base by bolts; a supporting lifting column is arranged at the upperend of the rotating motor in a transmission mode; a connecting supporting rod is movably installed on the side wall of the supporting lifting column; a bottom supporting platform is fixedly arranged at the end of the connecting supporting rod; the pregnant belly holding devices are symmetrically arranged on the side walls of the two ends of a backrest; display screen lifting hydraulic cylinders are symmetrically arranged on and rotatably connected to the side wall of the backrest; a leisure display screen is movably fixed to the upper ends of the display screen lifting hydraulic cylinders. Thespecial prenatal diagnosis bed for the pregnant woman is provided with leg support plates which are of arc-shaped groove structures, and the length of each leg support plate is 50 centimeters. The leg support plates fit the curved structures of the human legs, are in line with ergonomics and make the legs more comfortable during placement, and the length fits the majority's placement.

The invention provides an intelligent rubbish classifying and recycling cabinet. The intelligent rubbish classifying and recycling cabinet is of an integrated type structure. The inner portion of a cabinet body is partitioned by partitions into multiple layers. Each layer is provided with multiple open rubbish classifying and recycling spaces, wherein cover-free rubbish collection boxes with bottoms are placed in the open rubbish classifying and recycling spaces. Cabinet doors shelter all the cuboid spaces. Touch displayers, bar code devices, cameras, motors and infrared sensors are electrically connected a master controller. A user clicks the corresponding touch displayer to select the rubbish class, the master controller controls a corresponding rubbish throwing opening cover to be automatically opened and closed, the corresponding camera records the person throwing the rubbish, the corresponding bar code device automatically prints a tracing bar code sticker with the rubbish class and throwing time information, and the bar code sticker is stuck to a rubbish bag or rubbish. The intelligent rubbish classifying and recycling cabinet avoids the situations that multiple dustbins arescattered, and people throw the rubbish here and there at will. The intelligent rubbish classifying and recycling cabinet effectively and reasonably utilizes spaces in the cabinet body, can achieve rubbish throwing, recycling and classifying and is neat and attractive in appearance and suitable for being used in various different environments.

The invention discloses an automatic biomass particle heating stove. According to the automatic biomass particle heating stove, a combustion chamber and a feeding auger are arranged in a spaced mode, a feeding cylinder corresponding to the combustion chamber is arranged at the tail conveying end of the feeding auger, and thus the problem of carbonization of participating fuel in the feeding auger is solved; through the additional arrangement of a control panel, a driving device, a temperature measurement device, a deslagging auger and the like, automatic control over feeding, ignition, deslagging and the air volume is achieved, and automation is achieved; a vertical and tangential bidirectional air inlet mode is adopted, in this way, oxygen-enriched and suspension combustion is achieved, and sufficient fuel is guaranteed; a two-stage dedusting channel is arranged for smoke, in this way, the degree of pollution of exhausted smoke can be lowered, and the environmental friendless effect is achieved; both the deslagging portion and the dedusting portion are arranged in a stove body and are sealed relative to the indoor space when the heating stove operates, and thus indoor cleanliness can be guaranteed when the heating stove is in use; a time-control ignition mode and a temperature-control ignition mode are adopted, and the ignition mode can be selected according to different times; meanwhile, in the temperature-control ignition mode, the success rate of ignition can be greatly increased, the flameout situation can be found in time and ignition can be started immediately.

The invention provides an electromagnet structure. The electromagnet structure comprises a magnetic pole, a mounting member used for mounting the magnetic pole and guiding the movement of the magnetic pole, and a first coil and a second coil arranged around the mounting member, a first blocking structure is arranged on the mounting member, and a first elastic member is arranged between the magnetic pole and the first blocking structure; when being energized, the first coil generates a magnetic field to attract the magnetic pole to a position close to the first blocking structure, and at this time, the first elastic member is compressed to store energy; when the first coil de-energized, the second coil is energized, the second coil generates a magnetic force to attract the magnetic pole to move towards one side away from the first blocking structure, at this time, the first elastic member releases the energy to propel the magnetic pole to accelerate, so that when the magnetic pole arrives at the position of the second coil, the magnetic pole can obtain a larger speed, and thus being capable of driving the action of a mandril in a larger force. Compared with the prior art, the magnetic pole drives the movement of the mandril in the larger force without increasing the current or the coil, and demands under specific occasions can be satisfied.

The invention discloses a spiral factory building which is provided with a plurality of floors; the planes of all the floors are inclined and mutually communicated to form a spiral structure; the inclination angles of the planes of all the floors are smaller than 5 degrees; and each floor has more than three inclined planes. A foundation is arranged on the side of a factory, and a slope surface is arranged on the foundation. Each floor of the factory is respectively provided with inlets which are connected with the slope surface, and platforms are arranged between the inlets and the slope surface. The spiral-type connection enables production lines in the factory to be continuously lined, thereby reducing the operation time and cost, and improving the communication and production efficiency.

The invention discloses an efficient energy-saving environment-friendly bamboo salt baking furnace comprising a hearth and a furnace body consisting of the hearth. The baking furnace is characterized in that the furnace body is rectangular and is built on a 30-degree slope mountain, 4 / 5 of the furnace body is buried in the mountain, and 1 / 5 of the furnace body is exposed out of the mountain; a baking hearth and an oven chamber are arranged in the furnace body, and the oven chamber is 1 meter lower than the baking hearth; a dust purification device is arranged above the bamboo salt baking furnace; and a three-stage sewage sedimentation tank is arranged below the bamboo salt baking furnace. The bamboo salt baking furnace built at a hillside is less in construction investment, cannot be completely built by using firebricks, and can save a chimney; the hearth is good in heat preservation, the temperature rise from 1000 to 1200 DEG C only needs 6 hours, and the furnace body is used by matching with the dust purification device and the sewage sedimentation device, so that the bamboo salt baking furnace is environment-friendly and pollution-free; and furnace bars are obliquely arranged in a fish-bone shape and are suitable for placing terrines for burning bamboo salts.

The invention discloses a cooling fan and an ice crystal box thereof. The cooling fan is provided with a water tank. The ice crystal box is suitable for being put in the water tank. According to the embodiment of the first aspect of the invention, the ice crystal box for the cooling fan comprises a box body and a handle, wherein an accommodating cavity is defined in the box body, the handle is arranged on the box body so as to be held by a user, and at least part of the handle is exposed out of the liquid surface of the water tank. The ice crystal box of the embodiment of the invention is more convenient to use.

The invention discloses an energy storage battery module and an echelon utilization system. The energy storage battery module comprises: a plurality of energy storage battery modules which are formedby series-parallel connection of a plurality of energy storage battery monomers; a positive electrode busbar connected with the positive electrode output ends of the plurality of energy storage battery modules; and a negative electrode busbar connected with the negative electrode output ends of the plurality of energy storage battery modules. According to the arrangement, the positive electrode output ends of the energy storage battery modules are connected with the positive electrode busbar, and the negative electrode output ends of the energy storage battery modules are connected with the negative electrode busbar, so that multiple energy storage battery modules are connected without flexible wires; and after a plurality of energy storage battery modules are connected through the positive electrode busbar and the negative electrode busbar, a short circuit condition cannot occur due to a certain distance between the positive electrode busbar and the negative electrode busbar, so thata short circuit fault between the positive electrode and the negative electrode of each energy storage battery module is solved.

The invention discloses an educational toy. A head block, a front foot block, a middle part block, a rear foot block and a tail block are spliced to form a dinosaur-shaped body, wherein a transverse clamping groove I and a longitudinal clamping groove II are formed in the front of the tail block; a transverse buckle I is arranged at the rear part of the rear foot block; a longitudinal clamping buckle II, transverse clamping grooves V and longitudinal clamping grooves VI are formed on a rear foot connection block of the middle part block; a transverse clamping buckle III, transverse clamping grooves VII and longitudinal clamping grooves VIII are formed in a middle connection block; a longitudinal clamping buckle IV, transverse clamping grooves IX and longitudinal clamping grooves X are formed in a front foot connection block I; a transverse clamping buckle V, transverse clamping grooves XI and longitudinal clamping groove XII are formed in the front foot block; a longitudinal clamping buckle VI, transverse clamping grooves XIII and longitudinal clamping grooves XIV are formed in a front foot connection block II of the head block; a transverse clamping buckle VII, longitudinal clamping grooves XV and front recessed holes I are formed in a neck block; a longitudinal clamping buckle VIII is arranged on a mouth block; recessed holes II are formed corresponding to the recessed holes I; a bolt penetrates through the recessed holes I and the recessed holes II.

The invention provides a vehicle-mounted air purifier with nano-silver tea-residue biomedical carbon as the main filter material. The air purifier comprises a shell unit body, air inlets, air outlets, a detachable shell unit body, a fan and a multistage purifying filter net system. The multistage purifying filter net system comprises a primary filter net, a I-level tea-residue biomedical carbon filter net, an HEPA filter net, a II-level nano-silver tea-residue biomedical carbon filter net and a III-level nano-silver tea-residue biomedical carbon filter net; and the detachable shell unit body is arranged on the shell unit body, the air outlets are formed in the upper bottom surface of the shell unit body, and the air inlets are formed in the lower bottom surface of the shell unit body. The vehicle-mounted air purifier with the nano-silver tea-residue biomedical carbon as the main filter material is easy to assemble and operate, capable of reducing cost, convenient to disassemble and carry, capable of being assembled in use, and applicable to various environments; and the tea-residue biomedical carbon and the nano-silver tea-residue biomedical carbon are used as the main filter material, the vehicle-mounted air purifier has the advantages of low cost, high purification and filter speed, and can be used in vehicles or used for domestic air purification.

The invention relates to a rolled toilet paper frame which comprises a paper cavity, a baffle and a fixing device, wherein the paper cavity is G-shaped, the baffle is located at one end of the paper cavity and the end of the paper cavity folds inwards, the baffle is connected with the paper cavity through a shaft in a rotating mode, teeth are formed at the tail end of the baffle, a horizontal convex edge is formed in the inner wall of the paper cavity and the inner wall of the paper cavity is opposite to the end which folds inwards, and the distance between the bottom of the convex edge and the shaft is equal to the distance between the shaft and the teeth of the baffle. The rolled toilet paper frame can place various kinds of rolled toilet paper, and the rolled toilet paper is easy to tear. The rolled toilet paper frame is attractive in appearance, easy to fix, and convenient to move and dismantle.

The invention relates to a through-hole solder pad structure. The through-hole solder pad structure comprises a through hole perpendicular to a surface of a circuit board, and a distance between a center axis of the through hole to a side edge closest to the circuit board is 1 to 1.5 times of the diameter of the through hole; the circuit board on the periphery of the through hole comprises a solder mask layer on the outermost side and a solder layer on the inner side of the solder mask layer along the thickness direction; on the surface of the circuit board, the solder layer in an area betweenthe end part of the through hole and the side edge closest to the circuit board is exposed, and the exposed surface of the solder layer is a solder area; and the direction to which the through hole points the side edge closest to the circuit board is the length direction of the solder area, and a width of the solder area is not smaller than the diameter of the through hole. Based on the originalstructural design of the circuit board, the overall structure and shape of the circuit board are not changed, and the through-hole solder pad structure is used for flexibly connecting different circuit boards. The through-hole solder pad structure is diversified in use way, and suitable for installing the circuit board in a narrow space and a specially-shaped space.

The invention discloses a spliced educational toy. A head block and a trunk block are spliced to form a cat-type whole body; the trunk block comprises a front side block, a middle block and a rear side block and is provided with a groove which penetrates through the front side block, the middle block and the rear side block; a clamping groove part is arranged on one side of the groove; the trunk block also comprises a clamping block matched with the groove; the clamping block is provided with a buckle part matched with the clamping groove part; a plug pin is arranged at the bottom of the head block; an insertion hole matched with the plug pin is formed in the corresponding position of the middle block and the clamping block; a plurality of longitudinal clamping groove parts and longitudinal buckle parts are arranged on the rear side of the front side block; a plurality of longitudinal clamping groove parts and longitudinal buckle parts are arranged on the front side of the rear side block; a plurality of longitudinal buckle parts and longitudinal clamping groove parts matched with the front side block are arranged on the front side of the middle block; a plurality of longitudinal buckle parts and longitudinal clamping groove parts matched with the rear side block are arranged on the rear side of the middle block. The splicing difficulty is medium and more attractive in shape.

The invention discloses an equipment operation sign board, and belongs to the technical field of electrical equipment maintenance. The sign board comprises a board body. The board body comprises a board body pedestal and a board body shield. The four corners of the board body pedestal are provided with installation holes. The back surface of the board body pedestal is provided with paste zones used for being connected to the equipment, and the paste zones are provided with magnets or super glue. A bulged portion used for holding signs is arranged at the center of the front surface of the board body pedestal. The side edges of the board body pedestal are provided with buckle buttons. The tail ends of the buckle buttons are provided with clamping hooks. The board body shield is internally provided with buckles matching the clamping hooks. The portion, corresponding to the bulged portion, of the board body shield is provided with glass. The side edges of the board body pedestal are provided with grooves, and the buckle buttons are mounted in the grooves. According to the invention, the sign board is simple is structure and is convenient to install, the signs can be flexibly and rapidly replaced, the replacing efficiency is greatly improved, manpower and material resources are saved, and the production cost is saved.

The invention provides a low-noise water washing type air purifier. The low-noise water washing type air purifier comprises a purifier shell, wherein the purifier shell is internally provided with a water spraying device, a water tank, a water pump and an exhausting fan; the water tank is internally provided with a separation plate; the water pump is located under the separation plate and the water spraying device is located above the separation plate; a gap is formed between the separation plate and the inner wall of at least one side of the water tank; a water inlet pipe penetrates through the separation plate. According to the water washing type air purifier, the water tank is internally provided with the separation plate and the water spraying device is located above the separation plate, so that water sprayed by the water spraying device is firstly dripped onto the separation plate; the separation plate is not in complete contact with the inner wall of the water tank and a gap is slightly formed between the separation plate and the water tank, so that water on the separation plate flows to the inner wall of the water tank from the gap, and finally flows to the bottom of the water tank along the inner wall of the water tank; mutual knocking sounds of the water are nearly not produced in the water tank so that the noise in the air purifier can be effectively reduced; and the noise of the air purifier is very low, and influences on the indoor environment are nearly not caused, so that the low-noise water washing type air purifier is more suitable for being placed indoors.

The invention discloses a novel environment-friendly tissue box and relates to the technical field of articles for daily use. A barrel cover (1) is in screw connection with one end of a cylindrical box body (2), a tissue winding shaft (4) is horizontally fixed at the center of the other end of the interior of the cylindrical box body (2), an animal-shaped decorative body (3) and a leaf-shaped decorative body (5) are respectively arranged on the upper portion of the cylindrical box body (2) in a slideable mode, a tissue outlet (6) is horizontally disposed on the front side of the cylindrical box body (2), and a plurality of support foot pads (7) are uniformly arranged at the bottom of the cylindrical box body (2). The novel environment-friendly tissue box has the advantages that the appearance is attractive, the design is novel, the environment-protecting awareness of people can be enhanced, the environment protection education for children can be achieved by means of the novel environment-friendly tissue box, the box is multi-purpose, and the application range is wide.

The invention discloses a composite sled type seabed mine car traveling device, which comprises a main body of the mine car, a propulsion steering device, a traveling device and a buoyancy control device. The propulsion steering device includes a propeller propeller, a fairing, and a deflector. Skid board, flexible skid board, rigid skid board is fixedly connected to the lower part of the main body of the mine car, flexible skid board is fixedly connected under the rigid skid board, flexible skid board includes an outer protective layer, water bag, air bag; the outer protective layer is provided with multiple An independent water bag, the upper part of the water bag is closely connected with the skid board, and an air bag is installed inside the water bag; the buoyancy control device includes a high-pressure water pump, a water pipeline, a water distribution tank, a water filling valve, a drain valve, a high-pressure air tank, an air pipeline, an inflation valve, As for the exhaust valve, each water bag is provided with a water filling valve and a drain valve, and the air bag is provided with an inflation valve and an exhaust valve. The invention can make the seabed mine car suitable for different working modes such as placement, walking, self-rescue from trap, recovery and the like.

Tabulate display screen is in front side, and drive set is installed in vertically. Bracket is in low part of body case. Rotatable bracket is supplied to change angle of body case. Damping fin is setup between pivot and shaft hole of pivot so that support is stable and suitable to bumpy situation such as in car or train. Handle for easy to be carried is installed on sidewall of the body case. Cable is arranged inside case to prevent break.

The invention relates to the technical field of skincare products and provides a skincare product composition aiming at solving the problem that skincare products are easy to degrade in a high-temperature moist environment. The skincare product composition contains the following components in parts by mass: 10-15 parts of aluminum-magnesium silicate, 60-70 parts of hydrogenated coconut oil, 1-4 parts of salvia sclarea oil and 10-15 parts of leuconostoc / radish root fermented product filtrate. The invention further provides a preparation method of the skincare product composition. The skincare product composition is prepared by uniformly mixing the components, and carrying out emulsification and homogenization. The skincare product composition has the effects that the quality of the skincareproduct in which the skincare product composition is added is not easily influenced by the high-temperature moist environment, and the service life of the skincare product is prolonged.

The invention discloses a shelf which is used to be as a go-cart and ascend, it includes the base, there is a right-angled triangle ladder shelf which is set several footboard on one side of the base. On the other side, there are multilaminar shelf which are parallel each other, the right-angled triangle ladderhas up armrest, down armrest and 'F' guardrail on the outside of its top, the shelf has guardrail and on the top, there are several support pulley groupware under the base, and pulleys under the support pulley groupware; the excellence of the invention is not only be used as a normal ascending ladder but also can be used as a go-cart, so one machine has several functions and good appearance, it is suitable to take, put, store and convey the high objects in security, and has good stability and security when ascend or take objects on high altitude and convey long distance.

The invention relates to the technical field of skincare products and provides a skincare product composition aiming at solving the problem that skincare products are easy to degrade in a high-temperature moist environment. The skincare product composition contains the following components in parts by mass: 10-15 parts of aluminum-magnesium silicate, 60-70 parts of hydrogenated coconut oil, 1-4 parts of salvia sclarea oil and 10-15 parts of leuconostoc / radish root fermented product filtrate. The invention further provides a preparation method of the skincare product composition. The skincare product composition is prepared by uniformly mixing the components, and carrying out emulsification and homogenization. The skincare product composition has the effects that the quality of the skincareproduct in which the skincare product composition is added is not easily influenced by the high-temperature moist environment, and the service life of the skincare product is prolonged.

The invention relates to a general surgery ward object size identification platform. The platform includes: a parameter measurement device, used to obtain the real-time depth of field of the bed object corresponding to the bed area in the targeted processed image, and is also used to obtain the The maximum length and maximum width of the bed area; a signal conversion device for estimating the maximum estimated area occupied by the bed object based on the instant depth of field, the maximum length and the maximum width; and a content analysis device for estimating the maximum estimated area occupied by the bed object based on the instant depth of field, the maximum length and the maximum width; The relationship between the ratio of the maximum estimated area to the usable area of ​​the ward where the bed is located and the preset proportion range determines whether the bed object is suitable for placement in the ward. The general surgery ward object size identification platform of the present invention is easy to operate and has a compact structure.

The invention discloses a multifunctional fitness office chair. A connecting rod mechanism assembly rod 19 is sleeved with an attitude conversion chuck 11, and assembly rods 16, 17, 18 are sleeved with the chair back and can rotate; the degree of freedom of an integral connecting rod mechanism of 15 is calculated to be 1; when the 19 is clamped on a sitting posture groove in the chuck, a supporting accessory 15 is matched, so that the whole chair is in a sitting posture; when the 19 is clamped in a lying posture groove, a semi-lying posture groove and a semi-standing posture groove, the positions of the assembly rods 16, 19, 20 and 21 are moved, and the posture of the chair is changed at the same time to be matched with the corresponding posture of the supporting accessory. A pedal part isrealized as follows: a pedal joint 14 is connected with the chair seat 2 by a torsion spring, so that the weight aid requirement of the leg exercise is met. The weight of the chest and the arms in exercise is held by a holding pull ring 7 hidden by a back dark box 6 and a holding pull ring hidden by a bottom dark box 10 of the chair seat. The half-lying posture and the half-standing posture can be matched with a rotatable handrail 3 for exercise. In this way, the exercise requirements of different postures can be easily met, and the chair is suitable for office exercise.