30results about How to "Maintain air pressure" patented technology

A laser alignment device is disclosed according to the present invention, which may emit a laser beam and form one or more reference lines on an object surface. The laser alignment device, comprising a body in which a laser emitter is provided, the body is connected with a base that includes a fixing means. The laser alignment device is sucked onto the surface of the object by a suction cup. The suction cup is connected to a cylinder further comprising a piston which may slide therein due to a spring means so that the suction force of the suction cup can be adjusted. This laser alignment device does not cause any damage when fixed onto a wall surface. The fixing means has a strong suction force and may fix the laser alignment device onto the wall surface for a long time, and thus the trouble due to unsteady position or disengagement in operation is reduced.

The invention provides a combined-type distributing valve group which is particularly suitable for an air bag type inflation and deflation system applied in an automobile chair for improving the comfort performance. The distributing valve group comprises a control air valve and at least two inflation and deflation valves capable of inflating or deflating different air bags. A control air valve is provided with a normally-closed first distribution flow channel which is communicated with one inflation and deflation valve and is provided with a normally-opened second distribution flow channel which is communicated with the other inflation and deflation valve. The two inflation and deflation valves are each provided with a check valve, a normally-opened inflation pipe and a normally-closed deflation opening. Thus, when air enters an air pump, one air bag set can be directly inflated or the other air bag set is inflated through switching of the control air valve and the air pressure in air bags is maintained through the check valves when air is prevented from entering the air pump. When any inflation and deflation valve acts, the air bag corresponding to the inflation and deflation valve is deflated, and therefore the amount of valve bodies and control procedures can be greatly reduced.

A patient support system for a wheelchair is provided. At least a portion of the patient support system components form a no-air-loss patient support surface. At least one fluid pump can supply air pressure to a plurality of no-air-loss air cells, and at least one pressure release valve can release air pressure from the no-air-loss air cells. A computer can compare air pressure within the air cells to a desired air pressure set point and can modulate the air pressure by actuating the at least one fluid pump and/or the at least one pressure release valve to bring the air pressure within the air cells to a desired air pressure. After the initial air pressure adjustments are made and the desired air pressure is achieved, no further adjustments during the operation are able to be made by the computer so that the patient positioned thereon the patient support system will not be moved by the patient support system during an operation.

An electroplating apparatus including a first insulated plate which has an opening, a second insulated plate which holds an object to be electroplated between the first insulated plate and the second insulated plate in such a way that the object to be electroplated is exposed through the opening, an inner seal which is provided around a periphery of the opening between the first insulated plate and the object to be electroplated, a conductor which is provided between the first insulated plate and the second insulated plate surrounding the object to be electroplated so as to conduct electricity to the object to be electroplated, and an outer seal which is provided between the first insulated plate and the second insulated plate surrounding the conductor, in which a vacuum passage is formed inside the first insulated plate and/or the second insulated plate in order to make and keep air pressure in a space surrounded by the first insulated plate, the second insulated plate, the inner seal, and the outer seal, negative.

The present invention is directed to an applicator having an agricultural product pneumatic conveying system which meters particulate material from one or more source containers at the application equipment and transports the particulate material to evenly distribute the particulate material from the applicator. The pneumatic conveying system employs large diameter supply lines connected between the metering devices at the source containers and delivery nozzles, where the supply lines operate to move and mix the particulate material from the source containers to the nozzles. The particulate material is metered from the source containers into the supply lines via a number of airlocks that can be operated without allowing airflow from the large diameter supply lines to enter the source containers through the airlocks. In addition, the metering devices can b e operated in collective or independent variable manners to allow for sectional control and turning compensation.

The invention discloses a temperature adjusting type substitutional tea brewing machine and a working method thereof, and belongs to the technical field of substitutional tea brewing equipment. The substitutional tea brewing machine comprises a control unit, a hot water unit, a temperature adjusting unit and a brewing unit; wherein the hot water unit is used for preparing hot water and comprises a hot water container; the temperature adjusting unit is used for preparing water at different temperatures and comprises a temperature adjusting container and a cold water circulating system arranged around the temperature adjusting container. The brewing unit is used for brewing tea water and comprises a brewing container, and a net-shaped tea bowl used for containing substitute tea to be brewed is arranged in the brewing container. The control unit comprises a main control system which comprises a flow control module and a temperature control module. The flow control module guarantees water supply; and the temperature control module is used for ensuring that the temperature of water entering the brewing container meets the brewing temperature of the substitute tea. The brewing temperature, the brewing time, the liquid-to-solid ratio and other parameters can be accurately adjusted, the brewing quality of the substitute tea can be improved, and the device has the advantages of being automatic, intelligent, safe, convenient to use and the like and is suitable for brewing and drinking of the substitute tea.

The invention discloses a foldable mixed hemostatic structure and a hemostatic device, wherein the hemostatic structure consists of an externally film of a hemostatic material and a mixed self-adaptive structure; the mixed adaptive structure consists of an air bag, an inflation device and adaptive scissor hinge deployment structures; the external film of the hemostatic material is pasted and fixedon the outer side of the air bag; the inflation device is connected to the upper end of the air bag and can charge or withdraw air into the air bag; the adaptive scissor hinge deployment structures consist of scissor hinge structural units and supporting rods; the scissor hinge structure units consist of scissor hinge units and elastic components; the supporting rods consist of supporting rod scissor hinge units and supporting rod elastic components. When in use, the hemostatic structure is injected into the wound, the supporting rods expand along the axial direction, the inflation device isopened to inflate the air bag to inflate the air bag to drive the external film of the hemostatic material to contact with the wound surface, the scissor hinge structure units expand along the radialdirection to provide support for the air bag, and inflation is stopped when the pressure meets the hemostatic condition of the wound pressing, so that the hemostatic function is realized.

The present invention relates to a tire with self-inflation device wherein: (1) the tube is inserted inside the side portion wherein the extension and contraction movements of the tire are mostly occurring in order to further enhance the efficiency of the air supply to the tire cavity during driving; (2) the air compressed towards the driving direction is injected to the tire cavity, and the air from the outside is charged to the tube due to the negative pressure formed in the tube located in the opposite side of driving; and (3) the durability is enhanced by reducing the exposed portion of the regulator.

The invention relates to the technical field of kitchen furniture, and discloses a dish-washing machine drying device which comprises a rack, a cleaning box in the rack, a power assembly at the bottom end of the cleaning box, a support in the cleaning box, rotary nozzles at the bottom end and the top end of an inner cavity of the cleaning box, and a drainage pipe and a water inlet pipe at the bottom of the cleaning box. Through the designed suction pipe, the driving rod, the ejector rod and the elastic rubber layer I, when rotating nozzles conduct rotating impact cleaning on bowls and chopsticks, the upper rotating nozzle and the lower rotating nozzle can intermittently impact the driving rod, so that the driving rod moves up and down, the ejector rod is driven to extrude and pull the elastic rubber layer I, the space in the suction pipe is intermittently changed, and the cleaning effect is improved. According to the cleaning device, the suction pipe is arranged, so that the suction pipe sucks away high-temperature and high-pressure water vapor in the cleaning box, the air pressure in the cleaning box is reduced, the spraying resistance borne by a spray head is reduced, meanwhile, the condensation pipe and the hollow cavity are designed, the high-temperature and high-pressure water vapor circulates in the condensation pipe and releases heat, air in the hollow cavity is heated, and high-pressure expansion gas is formed.

The invention discloses a mixed hemostatic structure. The structure consists of an external application film of hemostatic materials and a mixed self-adaptive structure. The self-adaptive structure consists of an air bag, an air inflation device and a horizontal self-adaptive scissor-like hinge deployable structure. The self-adaptive horizontal scissor-like hinge deployable structure consists of ascissor-like hinge structural unit and a perforation line, and the scissor-like hinge structural unit is connected into a whole by the perforation line. The scissor-like hinge structural unit consists of a scissor-like hinge unit and an elastic element, wherein the scissor-like hinge unit is formed by hinging four rods end to end in sequence. When in use, the mixed hemostatic structure istis injected into the wound, the inflation device is opened and the air bag is inflated to expand so that the external application film of hemostatic materials is driven to contact with the wound surface, theelastic element releases elastic potential energy to drive the scissor-like hinge structural unit to expand along the radial direction to provide support for the air bag. When the pressure meets thehemostatic condition of the wound compression hemostasis, the air inflation is stopped, so that the hemostasis function is achieved.

The invention relates to the technical field of equipment for preparing wine by a direct fermentation process, in particular to a fermented grain discharge device for wine making. The fermented graindischarge device comprises a bottom plate, a support ring and a skeleton, wherein the skeleton comprises an inner side plate, an outer side plate and two connecting plates; the inner side plate, the outer side plate and the two connecting plates define a rectangular cavity; the rectangular cavity is internally provided with a movable plate, and a flexible air guiding tube is arranged between the movable plate and the inner side plate; the air guiding tube extends along the length direction of the skeleton, the lower end of the air guiding tube penetrates the bottom plate, and a rack is fixedlyarranged on the movable plate; the outer side plate is provided with a through hole, and a double-separating O-shaped zipper is fixed at the through hole; the zipper comprises two sliders, and a baffle is connected between the two sliders; a gear matched with the rack is rotationally connected onto the baffle, a connecting tube is connected onto the gear, an elastic airbag is fixedly arranged between the connecting tubes on the adjacent skeletons, and air inlet tubes are communicated with the connecting tubes. The solution solves the problem in the prior art that the fermented grains are easily adhered to the side wall of a ground jar during fermented grain discharge, so that the fermented grains cannot be completely discharged.

The invention discloses a horizontal sheering hinge mixed hemostatic structure and an injection mixed hemostatic device. The horizontal sheering hinge mixed hemostatic structure comprises hemostatic material external applying film and a mixed adaptive structure, wherein the mixed adaptive structure is composed of an airbag, an inflation device and an adaptive horizontal sheering hinge unfolding structure, the inflation device is connected to the upper end of the airbag and can inflate or deflate the airbag, and the adaptive horizontal sheering hinge unfolding structure is located in the airbag. When the horizontal sheering hinge mixed hemostatic structure and the injection mixed hemostatic device are used, the mixed hemostatic structure is injected into a wound, the inflation device is turned on to inflate the airbag so that the airbag dilates, thereby driving the hemostatic material external applying film to contact the wound surface of the wound, an elastic element releases elastic potential energy to drive a sheering hinge structure unit to expand radially so as to provide the airbag with support, and after the pressure meets an wound pressing hemostatic condition, inflation isstopped, thereby achieving a hemostatic function.