30results about How to "Automatically adjust the center of gravity" patented technology

The invention relates to a self-balancing stretcher. The stretcher comprises a first framework layer, wherein a second framework layer and a third framework layer are arranged on the inner side of the first framework layer in turn; two support rods in a length direction or a width direction of the second framework layer are rotatably connected with two support rods on the first framework layer respectively, and the other two support rods on the second framework layer are rotatably connected with two support rods on a third framework layer; the connection joints of the first framework layer, the second framework layer and the third framework layer are positioned in the center of the support rods to which the connection joints belong respectively; a sliding mechanism is arranged on two support rods in the length direction of the third framework layer respectively; the third framework layer is in sliding connection with a fourth framework layer by the sliding mechanism; two support rods on the fourth framework layer which are connected with the third framework layer are arc-shaped; fastening bolts are arranged on the sliding mechanism; and the inner side of the fourth framework layer is connected with a bed surface. The stretcher of the invention has the advantages of high vibration damping performance, capacity of automatically adjusting the balance, simple structure, convenient and flexible use and low cost.

The invention discloses improvement on S-shaped sofa chair for sitting and laying, which consists of a front leg pipe system, a rear leg pipe system, a footrest system, a chair seat, a chair back, a footrest plate, hinges, positioning pins, a hinge pipe, leg wheels and a connecting fabric, wherein the chair back consists of a chair back main body and a waist pad; the hinge pipe consists of a long sleeve, a short sleeve, an internal pipe, a spring, a positioning spring and a hinge seat; the long sleeve and the short sleeve are bodies with hollow cavities; the internal pipe is wrapped in the long sleeve and the short sleeve; the outer walls of the long sleeve and the short sleeve are connected with lugs; one end of the long sleeve is connected with a spring, the internal pipe is a body with a hollow cavity; one end of the internal pipe is closed, and the spring is wrapped and connected in the internal pipe; one end of the positioning spring is connected with the long sleeve, and the other end of the positioning sleeve is connected with a short sleeve; the main body of the chair back is connected with the chair back hinge of the rear leg pipe system and the long sleeve of the hinge pipe; and the waist pad is connected with the short sleeve of the hinge pipe through a bolt. The S-shaped sofa chair has the advantages of simple mechanism, two purposes of sitting and laying, automatic regulation of gravity center, small space occupation in idle state and enough support to the waist.

The invention relates to a medical sickbed. The medical sickbed comprises a bed frame; a group of gravity adjusting device and a turn-over device are arranged in the bed frame; the gravity adjusting device comprises a group of adjusting air cylinders; each adjusting air cylinder is fixedly connected with a fixing plate; a group of support rods are uniformly distributed on each fixing plate; the bed frame is connected with a camera and a display control screen respectively; the camera and the display control screen are connected with a control processor; the bed frame is also provided with a defecation groove; the defecation groove is provided with a sliding plate groove; the lower side of the defecation groove is connected with an excrement guide pipe; the turn-over device comprises a turn-over air cylinder; the turn-over cylinder is connected with turn-over plates through lifting rods. According to the sickbed, the stress gravity of patients with mobility difficulties can be automatically adjusted, the local stress of a human body is relieved, the stress burden of the human body is reduced, diseases such as bedsore are reduced, the medical sickbed can automatically help a patient to turn over, is favorable for medical staff to observing the condition of the patient in real time and provides convenience for defecation, and the workload of nurses is reduced.

The invention discloses ship draught and gravity center position adjusting equipment which comprises a ship bottom plate, a ship cavity is formed in the upper side of the ship bottom plate, a rotatingmechanism is arranged on the upper end face of the ship bottom plate, and the rotating mechanism comprises a large cavity communicating with the outside. Two outer walls are fixedly arranged on the upper end face of the ship bottom plate in a bilateral symmetry mode with the large cavity as the center, the ship cavity and the large cavity are isolated through the two outer walls, a rotating shaftis arranged in the large cavity, and the rotating shaft is rotationally connected to the outer walls. Therefore, the draft of the ship can be controlled without ballast water; The ballast water treatment cost is reduced, damage to an ecological system is reduced, the gravity center of the ship can be automatically adjusted, the ship is kept in a slight stern inclination state all the time, the stern thruster is completely immersed in water, and the operability and high speed of the ship are guaranteed.

The invention provides a seating and lying two-purpose seat system. The system consists of a front leg pipe system, a back leg pipe system, a slide rail, a seat, a backrest, a positioning pin, a hinge pipe and casters, wherein a joint face of the slide rail is connected with an upper horizontal pipe of the front leg pipe system, and the other joint face of the slide rail is connected with an upper horizontal pipe of the back le pipe system; the front leg pipe system is connected with the back leg pipe system in a sliding way; a backrest hinge on the back part of the backrest is hinged with through holes of two backrest pipes of the back leg pipe system; the positioning pin is connected to the upper horizontal pipe of the front leg pipe system; a pin column of the positioning pin passes through a hole on the upper horizontal pipe of the front leg pipe system and is inserted into a hole of the upper horizontal pipe of the back leg pipe system; the outer wall of a casing of the hinge pipe is connected with the backrest; and a hinge seat is connected with the upper horizontal pipe of the front leg pipe system. The seat system has the advantages that: the seat can be used for seating and lying; the gravity center of the seat system can be adjusted automatically; and the inclination angle of the backrest is fixed and adjustable.

Disclosed is a bicycle. A handlebar (1), a steering bar (7), a braking system, a bicycle frame, a front steering wheel (14), pedal plate driving devices, speed changing boxes (44) and rear driving wheels (45) are arranged on a bicycle body respectively, the front steering wheel (14) is mounted below the steering bar, the pedal plate driving devices and the speed changing boxes (44) are mounted on the bicycle frame, and the rear driving wheels (45) are disposed on output shafts of the speed changing boxes. The bicycle has the advantages that pedal plate driving parts (17) are added between pedal plates (22) and driving connecting rods (32), speed changing box driving parts (37) are added between the driving connecting rods (32) and driving shafts (42) of the speed changing boxes, two sets of independent pedal plate driving device driving systems are disposed under two pedal plates, and thereby, defects of a bicycle of Chinese patent number 201210084957.X can be overcome, for example, two speed-up boxes are arranged on left and right and output motive power to one shaft, twisting of output shafts can occur and one wheel can not contact with the ground during driving on uneven roads, the center of gravity of a user moves from side to side when the user treadles, instability is severe, pedaling self-moving is quite dangerous, personal safety is endangered, twisting of the output shafts can occur, the speed-up boxes can not work and the pedaling self-moving function can not be achieved.

The invention relates to a chopstick, which comprises a first end and a second end, wherein the first end can be used for clamping food and comprises a closed cavity; a flowing substance is containedin the closed cavity, when the first end is lower than the second end, the flowing substance flows to the first end, and the gravity center of the whole chopstick is located at the first end; when thesecond end is lower than the first end, the flowing substance flows to the second end, and the gravity center of the whole chopstick is located at the second end. The chopstick (1-1) comprises a clamping part (1-13) and a handheld part (1-14) and is characterized by comprising a closed cavity, wherein a flowing substance (1-2) is arranged in the closed cavity; when the height of the clamping partis equal to that of the handheld part, the flowing substance flows to the handheld part, and the gravity center (G) of the whole chopstick is located at the handheld part of the chopstick; when the clamping part is lower than the handheld part, the flowing substance flows to the clamping part, and the gravity center of the whole chopstick is located at the clamping part of the chopstick. The chopstick has the beneficial effects that the gravity center can be automatically adjusted, the operation difficulty is lowered, the learning difficulty is lowered, clamping tilting can be reduced, the safety and sanitation are achieved, and a brand-new technical thought is provided.

The invention discloses a spherical bogie. The spherical bogie is located on the lower portion of a car body (1) of a rail wheel type shuttle mine car. The spherical bogie comprises a wheel set (4), side beams (10), a spring assembly (3) and a bottom bolster (8), wherein the side beams are symmetrically arranged and used for connecting the wheel set, the bottom bolster is arranged between the side beams, the car body is provided with a beam (2), a spherical groove (9) is formed in the beam, a spherical convex block (5) which is matched with the spherical groove (9) is arranged on the corresponding position of the bottom bolster, a lubricating oil passage is arranged between the spherical groove and the spherical convex block, support plates (6) are arranged on the spherical groove and the spherical convex block, and limit chains (7) are clamped between the support plates. By means of the spherical bogie, the center of gravity of the car body can be adjusted automatically, the lubricating oil passage is arranged, the problem o friction is effectively solved, the spherical groove is prevented from exceeding a limiting position by the limit chains arranged around the spherical bogie during 360-degree rotating of deflection, the spherical groove can controlled in a certain range, it is guaranteed that the shuttle car conducts normal transport work, and the phenomenon that the shuttle car falls from an uneven or irregular rail is prevented.

The invention discloses a park comprehensive service intelligent robot and a control method, and belongs to the technical field of robots, the park comprehensive service intelligent robot comprises a box body, first threaded rods which can move up and down in the box body and downwards extend out of the box body, and the first threaded rods are divided into a left group and a right group; a driving source is arranged at the bottom of each group of first threaded rods; a third threaded rod capable of horizontally moving and vertically moving is further arranged in the box body, and the third threaded rod downwards extends out of the box body and is connected to an auxiliary wheel at the bottom of the third threaded rod; the adjusting cylinder is arranged in the rotating box body; the adjusting ball is positioned in the adjusting cylinder; through mutual cooperation of the first threaded rod capable of moving up and down and the third threaded rod capable of moving horizontally and up and down, the robot can quickly cross over steps and walk along with pedestrians, and in the process of climbing over the steps, the gravity center of the whole robot can be automatically adjusted, rollover of the robot is prevented, and the stability is greatly improved.