69results about How to "Uniform water pressure" patented technology

The invention discloses a true triaxial loading and unloading test device for large-size bedded pressure-bearing rock and a testing method. The device comprises a confining pressure loading module, a sample storage and water outlet module, a confined water loading module, a load loading module and a signal collecting and processing system, wherein the confining pressure loading module comprises two horizontal loading and unloading systems which are independent and perpendicular to each other and is used for performing horizontal load loading and unloading on the wrapped sample storage and water outlet module; the confined water loading module is located at the bottom of the sample storage and water outlet module and is used for performing confined water loading and unloading on the bottom of the bedded rock; the load loading module is located at the top of the sample storage and water outlet module and is used for performing vertical load loading and unloading on the top of the bedded rock; the signal collecting and processing system is used for collecting and analyzing signals in a test process. The test device realizes the true triaxial test of the bedded rock through four independent loading and unloading systems, truly simulates three-way anisobaric stress state of the coal-series bedded pressure-bearing rock and is more true and more reliable than a conventional triaxial test.

The invention discloses a permeameter for realizing multi-field coupling and in-situ dry-wet cycle, belonging to the technical field of rock and soil permeation equipment. The permeameter comprises anair compressor and a rack, wherein a movable cross beam is arranged on the rack; the permeameter is characterized by further comprising a pneumatic control cabinet, an axial pressure loading device,a pore pressure loading device, a confining pressure loading device, an in-situ drying device, a metering device and a pressure chamber; a programmable logic controller (PLC) is arranged in the pneumatic control cabinet; the in-situ drying device comprises a resistor heating wire and a temperature control instrument, wherein the resistor heating wire is electrically connected with the temperaturecontrol instrument; the metering device comprises a water collector, a weighing sensor and a mass display meter, and the weighing sensor is separately and electrically connected with the mass displaymeter and the PLC. The permeameter can realize multi-field coupling as well as in-situ drying and measurement of dryness and humidity of the sample, and guarantees the integrity of the sample structure during the test, thereby being capable of effectively reflecting the actual reaction situation and guaranteeing the accuracy of the sample permeation.

The invention relates to a servo controlled rock fracture shear seepage test sealing device, which includes a shear apparatus for shearing rock fracture test pieces and a seepage apparatus for controlling fluid flow. The shear apparatus consists of a normal compression plate, an upper shear box, a lower shear box, a pedestal, upper pressing blocks and lower pressing blocks, a rock fracture test piece is fixed at a test station between the upper shear box and the lower shear box, the upper part of the upper shear box is connected to the normal compression plate, the lower shear box is connected to the pedestal, the upper pressing blocks are respectively located on both sides at the lower part of the upper shear box, the lower pressing blocks are respectively located on both sides at the upper part of the lower shear box, and the lower pressing blocks are located right above the lower pressing blocks. The sealing device also includes a vertical seal apparatus for sealing a fracture end perpendicular to the shear direction, a horizontal seal apparatus for sealing a fracture end parallel to the shear direction, and a servo control system for controlling oil pressure. The servo controlled sealing device for rock fracture shear seepage test provided by the invention has the characteristics of stable sealing and continuous shear process.

The invention belongs to the technical field of devices for fruit planting, and discloses a spraying device for grape planting. The spraying device comprises a water storage tank, a spray pipe and a water guide pipe, wherein the water storage tank and the spray pipe are connected with the water guide pipe; the water storage tank is connected with a pressure plate in a sliding manner; the pressure plate is provided with a push rod; the push rod is provided with a first magnet; the side wall of the water storage tank is provided with a support; the support is provided with a first electromagnet, a support plate and a first conductive frame; the magnetic field produced by the first electromagnet is the same as the magnetic pole at the top end of the first magnet in polarity; an electrolyte solution is contained in the first conductive frame; the support plate is hinged with the support; the lower end of the support plate penetrates through the upper side wall of the water guide pipe; the upper side wall of the water guide pipe is corrugated; one side of the top end of the support plate close to the first conductive frame is provided with a conductive rod; the conductive rod is connected with a power supply of the first electromagnet; the spray pipe is provided with a controllable water outlet mechanism; and the top end of the spray pipe is provided with an atomization mechanism. The spraying device disclosed by the invention solves the problems of nonuniform spraying and high hand cramp possibility of a user in the prior art.

The invention belongs to the technical field of washing machines, and particularly relates to an outer cylinder cover and a washing machine. The outer cylinder cover includes an upper cover body and a lower cover body, the upper cover body and the lower cover body are connected to form a water cavity, multiple water outlets are formed in the inner circumferential wall of the water cavity, the portion, communicated with the water cavity, of a water inlet is provided with a water dividing bar of which the length extends in the circumferential direction of the outer cylinder cover, and inflow water is blocked by the water dividing bar to be divided towards the portions, at the two sides of the water inlet, of the water cavity and evenly sprayed into an inner cylinder through the water outlets. The hydraulic pressure in the water cavity of the outer cylinder cover is balanced, the effect of 360-degree all-around uniform water discharge can be achieved, the spraying effect of the washing machine is improved, and the effect of clothes cleaning is better.

The invention discloses a shut-off valve convenient for hydraulic transition and control for a tubular water turbine. The shut-off valve includes a central shaft and a signal circuit board used for transmitting signals to a controller to control a drive motor, a tubular elastic body pipe and a connecting section used for connecting with a chainring and transmitting torque separately sleeve the central shaft, one end of the elastic body is connected with the central shaft in a transmission mode, and the other end of the elastic body is connected with the connecting section. A sensing circuit board is arranged the outer side wall of the elastic body, and the sensing circuit board includes a deformation sensor arranged on the outer side wall of the elastic body for inducing the torque, a wireless signal transmitting module for outputting torque signals of the deformation sensor, and a power receiving coil. The signal circuit board includes a wireless signal receiving module for receivingthe torque signals, a power coil which interacts with the power receiving coil to form a power supply current on the power receiving coil, and input and output terminals connected to the controller. The shut-off valve convenient for the hydraulic transition and control for the tubular water turbine can ensure the stable transmission of a detection signal, and improving the detection accuracy is further facilitated.

The invention discloses a button water-stopping shower head. The button water-stopping shower head comprises a body, a water passing assembly, a switching assembly and a water outlet assembly. The water passing assembly and the switching assembly are arranged in the body, the water pressure areas of the water passing assembly are set to be equal, and therefore the water pressure in the water passing assembly is balanced; and a connecting rod mechanism in the switching assembly is used for controlling water passing or water stopping of the water passing assembly. The shower head is reasonable and stable in structure and easy to operate.

The invention provides a steady flow device for trickle irrigation, and relates to a trickle irrigation device for agriculture, particularly a steady flow device for eliminating differential pressure, and adjusting water flow in water conservation trickle irrigation, which comprises a water inlet and a water outlet. The steady flow device is arranged on the water inlet, and comprises a cap arranged on the water inlet and a soft washer and a hard washer superposed in the water inlet, wherein the a taper hole is formed on the hard washer, a convex conical plug matched with the taper hole is arranged on the corresponding position on the soft washer, holes are formed around the conical plug, and a gap is formed between the taper hole on the hard washer and the convex conical plug on the soft washer. Compared with the prior art, the steady flow device for trickle irrigation remedies the deficiency in adjusting water flow and controlling irrigation pressure, has the advantages of better steady flow effect, simple structure, simple manufacture, and is particularly suitable for large area irrigation for lands with terrain variation.

The invention belongs to the technical field of washing machines and relates to an outer barrel lid with an overflow protection structure. According to the outer barrel lid with the overflow protection structure, the outer barrel lid comprises an upper cover body and a lower cover body, and the upper cover body and the lower cover body are connected to form a water chamber; the outer barrel lid has a water inlet, and the upper portion of the outer barrel lid is provided with an overflow protection structure, and the overflow protection structure directs the overflowing water in the water chamber to the outside of the outer barrel. The outer barrel lid can avoid the problem that water overflows over the outer barrel lid and goes to the outside of the outer barrel and splashes on electric devices, thereby causing safety hazard, and also saves space and increases the capacity of the washing machine.

The invention relates to an electric low pressure test device and method for testing watertightness of a waterproof roll. The device comprises a base, a water storage cavity, a water supply mechanismand a locating mechanism, wherein an electromagnetic valve is arranged between the inlet of a water inlet pipe and a static water pressure supply pipe, the water supply mechanism comprises the water inlet pipe, the static water pressure supply pipe, a monitoring unit and a processing unit; during water supply, the electromagnetic valve is automatically opened, and the electromagnetic valve is automatically closed and the water supply is stopped until water level in the static water pressure supply pipe rises to a preset position; a washer is arranged on the water storage cavity, a to-be-detected sample is paved on the washer; the locating mechanism comprises a pressure plate, multiple locating units, a locating rod, a limiting rod and a limiting plate; when the to-be-detected sample is located, the limiting rod is horizontally arranged, and the limiting plate is against the bottom of the limiting rod, so that the periphery and the middle part of the pressure plate are in a stress staterespectively. The electric low pressure test device provided by the invention has the advantages that on one hand, the water supply can be automatically completed; and on the other hand, the periphery of the pressure plate is located, the middle part of the pressure plate is limited, and the washer is used for sealing, so that location is realized.

The invention discloses a glass product transfer mechanism with a self-adjusting function. The glass product transfer mechanism comprises a suspending plate, a connecting rod is fixedly connected to the top of the suspending plate, two placing platforms are fixed to the bottom of the suspending plate, and the two placing platforms are symmetrical about the suspending plate; two bottom guiding rodsand a top guiding rod which are fixed to the side face of the suspending plate are arranged above the placing platforms, and the bottom guiding rods are sleeved with bottom fixing parts; the top guiding rod is sleeved with a top fixing part, the top fixing part and the two bottom fixing parts on the different bottom guiding rods together form a limiting mechanism, and the limiting mechanism is used for fixing a glass plate; and the glass product transfer mechanism further comprises limiting pins, the limiting pins are matched with limiting pin holes formed in the placing platforms, the glassproduct transfer mechanism further includes a disturbed flow mechanism and first springs, wherein one ends of the first springs are detachably mounted on the bottom fixing parts, and a base of the disturbed flow mechanism is in contact with the other ends of the first springs. The glass product transfer mechanism can greatly improve transportation efficiency and safety.

The invention discloses a cloth wetting and spraying device. An infrared sensor used for sensing a cloth width is arranged on one side of cloth; a plurality of sprayer mounting pipes are arranged above the cloth; a plurality of sprayers are arranged on the sprayer mounting pipes; the plurality of sprayer mounting pipes are distributed in a width direction of the cloth; the sprayer mounting pipes are connected with a first solenoid valve; the first solenoid valve is connected with a water pump; the water pump is connected with a water tank; the infrared sensor is connected with the first solenoid valve. The invention provides an energy-saving and emission-reducing cloth wetting and spraying device.

The invention discloses a perineum washing and sterilizing device for gynecological nursing. The perineum washing and sterilizing device comprises a medicine dispensing box and a drying box, wherein the medicine dispensing box is fixedly connected with the drying box. The perineum washing and sterilizing device is fixed to a comfortable position by arranging a hook firstly, and then liquid medicine can be stirred by arranging a motor and a stirring shaft, so that the liquid medicine is uniformly mixed, during stirring, the liquid medicine can be heated through a heating rod and heating resistance wires according to needs and the use condition of the liquid medicine, the liquid medicine is heated to a proper temperature, and the use discomfort is reduced; by means of arrangement of an upperrack, a return spring and a communicating pipe, the flow speed and the water flow pressure of a cleaning solution can be stabilized, and incomplete cleaning caused by too low water pressure, damage of a user caused by too high water pressure and waste of the liquid medicine are avoided; and by means of arrangement of a drying head, the cleaned part can be dried, and the situation that bacteria breed due to too long natural drying time and hurts the user is prevented.

The invention relates to the technical field of fire-fighting systems, and discloses a fire-fighting pipeline system. The fire-fighting system applied to buildings includes a fire-fighting pipeline, outdoor fire hydrant groups corresponding to the number of the buildings and a first frame for elevating the loop pipe network sections, wherein the fire-fighting pipeline includes the loop pipe network sections corresponding to the number of the buildings one to one and at least two water inlet pipes for supplying water for the fire-fighting pipeline, each fire hydrant group includes at least oneoutdoor fire hydrant, and in the loop pipe network sections and the outdoor fire hydrant groups which correspond to the same buildings, each outdoor fire hydrant in the outdoor fire hydrant groups andthe loop pipe network sections communicate through fire hydrant branch pipes buried in the ground. According to the fire-fighting pipeline system, the loop pipe network sections are arranged on the inner walls or the outer walls of the buildings in an elevated mode, the connecting pipe sections are arranged in an elevating pipe gallery, and the length of the fire-fighting pipeline buried in a trench excavated in the past can be decreased.

The invention provides a drying system for washing equipment and a dish-washing machine. The drying system comprises a water collecting tank, wherein the water collecting tank is internally provided with a hot water cavity, the hot water cavity is internally provided with an air inlet channel, and the air inlet channel is provided with an air inlet; an air outlet which is formed in the air inlet channel; a water inlet pump, wherein a water inlet pipe is connected to the water inlet pump, and one end of the water inlet pipe is arranged at a water inlet of the water collecting tank; and a wateroutlet pump, wherein a water outlet pipe is connected to the water outlet pump, and one end of the water outlet pipe is arranged at a water outlet of the water collecting tank. According to the invention, the water inlet pump can guide hot water into the hot water cavity of the water collecting tank, a fan introduces external cold air into the hot water cavity, and a hot air channel in the hot water cavity makes the hot water stably act on the cold air to heat the cold air; and then the heated cold air is exhausted to the outside from the hot air channel through the air outlet in the form of hot air, so that tableware on the outer side of the water collecting tank is dried.

The invention provides a self-correction adjustable fire monitor head. The self-correction adjustable fire monitor head comprises a water separation head module and a water separator connected in sequence, wherein the water separation head module is used for adjusting the water quantity of a water outlet, and can perform the coaxiality adjustment according to the water pressure to prevent instablewater type caused by deflection; and the water separator is used for counteracting centrifugal force generated during rotary movement of water currents to improve the agglomeration effect of water columns during injection and to reduce the friction coefficient between the water columns and air. Through arrangement of the water separation head module and twelve blades, a water separation head mainpiece moves up and down relative to a cap to adjust the water quantity and the balanced water pressure and to automatically calibrate the coaxiality of the water separation head main piece and a firemonitor so as to guarantee unified water types; and in addition, foreign matters can be prevented from entering an inner cavity of a fire monitor body to block the monitor body.