63results about How to "Achieve pressurization" patented technology

The invention discloses a plate-type sludge dewatering machine and a dewatering method therefore. The plate-type sludge dewatering machine adopts elastomers positioned among pressing filter plates, adjacent anti-thrust filter plates, air-inlet filter plates, feeding filter plates and thrust filter plates to form at least three hermetic pressing filter chambers variable in volume, utilizes the compression deformation and resilience of the elastomers to deep squeeze and dewater a filter cake, and adopts sealing plugs which are arranged in front of air-inlet holes of the air-inlet filter plates and the thrust filter plates and are on positions opposite to feeding holes on the feeding filter plates and the anti-thrust filter plates, wherein the feeding filter plates are adjacent and involutory to the air-inlet filter plates. After low-pressure filter dewatering is over and feeding is stopped, the sealing plugs block and seal the feeding holes so as to prevent sludge from flowing back and entering pipelines during pressing filtration. The dewatering method adopts the variable hermetic pressing filter chambers formed by the elastomers to perform pressing filtration and dewatering, and adds the operation of adopting the sealing plugs to block the feeding holes before high-pressure squeezing-dewatering operation. The invention has the advantages of high dewatering efficiency, strong adaptability, low energy consumption, low use cost and the like.

A testing system capable of dynamically testing features of water content of soil in the dehumidification/freezing process comprises a pressurization dehumidification system, a temperature control system and an automatic data collecting system. According to the testing system, through the combination of the pressurization dehumidification system and the temperature control system, the constant-temperature dehumidification drying process and the constant-pressure cooling freezing process of a soil sample are achieved. By means of the testing system, the whole dehumidification process is conducted in a temperature-adjustable constant-temperature control box, testing of soil water content features is completed, error influences caused by potential factors such as temperature change, water evaporation, soil volume change and manual operation in the dehumidification process of soil are fundamentally reduced, and on the other hand, the cooling freezing process of soil under different pressure conditions is achieved through a pressurization device and effective methods and means are provided for soil freezing experimental investigation under the high pressure condition. The system can be used for the dewatering drying process of the soil sample under the set temperature condition and can also be used for the cooling freezing process of the soil sample under the set pressure condition, and the automatic real-time monitoring and collecting in the soil sample dynamic changing process are achieved.

The invention relates to the technical field of medical appliances, and particularly relates to an auxiliary device for spinal joint load position medical imaging examination. The auxiliary device comprises a should stress device, a body supporting plate, a thigh supporting plate, a shank supporting plate and a foot stress device which are connected sequentially, wherein the shoulder stress device is fixedly connected to one end of the body supporting plate; one end of the thigh supporting plate is hinged at the other end of the body supporting plate, and the other end of the thigh supporting plate is hinged at one end of the shank supporting plate; the other end of the shank supporting plate is hinged on the foot stress device; a stretch connecting rod is arranged between the body supporting plate and the foot stress device; and one end of the stretch connecting rod is fixedly connected with the body supporting plate, and the other end of the stretch connecting rod is connected with the foot stress device in a sliding manner. The shoulder stress device and the foot stress device are used as supporting, when feet constantly pedal downwards at full tilt, the shoulder stress device and the foot stress device form counter-acting forces, and the load state of the spine and lower limb joints of a body is simulated.

The invention discloses a bender, including a rack, a slide block and a workbench; the two ends and middle part of the slide block are connected with an independent lead screw transmission mechanism, the lead screw nut in each lead screw transmission mechanism is arranged on the rack via a bearing, the lead screw transmission mechanism is driven by a motor on the rack to rotate, the lead screw is screwed on the lead screw nut, and the bottom end is connected with the slide block; a deflection compensation device is arranged on the workbench, the workbench panel is arranged on the deflection compensation device, when in use, the deflection compensation device compensates the deformation amount of the workbench; the lead screw transmission mechanisms at the two ends stop working after driving the slide block to reach a preset position, the lead screw transmission mechanism in the middle part continues to drive the slide block some distance to compensate the elastic deformation caused when the slide block and the rack are loaded, in order to achieve bidirectional deflection compensation for the bender; the deflection compensation value of the workbench and the slide block depends on the rigidity of both the rack and the slide block and the workpiece, and digital control and automatic bidirectional deflection compensation for the bender can be achieved.

The invention discloses mute type secondary water supply equipment and relates to the technical field of water supply equipment. The equipment comprises a water tank; a water outlet pipe is installedon the lower side wall of the water tank; a horizontally-arranged floating plate is installed in the water tank in a sealed and sliding mode; an extending mechanism used for abutting against and pushing the floating plate is arranged in the water tank above the floating plate; a waterproof motor is installed in the floating plate; and a cleaning mechanism used for cleaning the inner wall of the water tank is in driving connection with the waterproof motor. According to the equipment, the water tank can be elastically supported through the arrangement of a damping mechanism, a buffering and damping effect on the working process of the water tank is achieved, and stable secondary water supply is guaranteed; extension can be achieved through the extending mechanism driven by the driving mechanism, an abutting and pushing effect on the floating plate is achieved, a pressurizing effect on water in the water tank is achieved, sufficient water pressure is guaranteed, and normal secondary water supply in a low-water-level state is achieved; and the arranged cleaning mechanism can be used for periodically cleaning the inner wall of the water tank, scale accumulation is avoided, and clean secondary water supply is achieved.

The invention discloses a diffusion bonding tool and method special for copper steel, and belongs to the technical field of diffusion welding of dissimilar materials. The diffusion bonding tool and method special for copper steel solve the problems of internal stress existing in welding seams and low joint strength in existing copper-steel diffusion bonding of a copper-steel composite heat exchanger. An expansion core is of a cylindrical structure, and the outer circular surface of the expansion core is of a conical surface; a plurality of expansion petals are arranged in a copper ring aroundthe central axis of the copper ring; each expansion petal is in contact with the inner wall of the copper ring without gap; one side surface, away from the copper ring, of each expansion petal is an inclined surface; the expansion core is matched and inserted into an annular structure formed by the plurality of expansion petals; the inner diameter of a small end of the annular structure is smallerthan the outer diameter of a small end of the expansion core; and the inner diameter of a large end of the annular structure is smaller than the outer diameter of a large end of the expansion core. The expansion core is pressed downwards by a diffusion welding press, the outer conical surface of the expansion core transmits lateral force to the copper ring through the expansion petals, and the pressure between the copper ring and a steel ring enables materials on the two sides to generate interatomic diffusion, so that the internal stress in the welding seams is effectively reduced, and the joint strength is guaranteed.

The invention discloses a culture dish device and a using method thereof. The culture dish device comprises a dish box and a dish cover which are in seal connection, and an air pressure regulating assembly is arranged on the dish cover. The device can directly apply static or dynamic mechanical stimulation to cells in the culture dish, the influence of compressive stress on the cells can be studied better and conveniently, the cells in the culture dish can be conveniently compressed by a mechanical device, cell pollution brought by the operation process is reduced, and the device has simple structure and low cost. The using method comprises the step of culturing the cells under pressure higher than 101 KPa, or culturing the cells under pressure lower than 101 KPa, or culturing the cells indynamic pressure. Great convenience is provided for studying biomechanical effects of the cells under different kinds of pressure.

The invention relates to a high-efficiency box-type furnace with uniform atmosphere filling. The high-efficiency box-type furnace comprises a main body, a preheating mechanism and a gas injection mechanism, wherein the gas injection mechanism comprises a supporting assembly, a sealing sleeve, a rotating sleeve, a fixing rod, a fan blade, a supporting net, two gas transmission pipes and at least two gas inlet pipes; the preheating mechanism comprises a compression cylinder, a first pipeline, a second pipeline, a first one-way valve, a second one-way valve, a pressure relief valve, a piston block, a cylinder and a supporting rod; and the supporting assembly comprises a supporting ring, two connecting blocks, two open grooves and at least two fixing blocks. In the high-efficiency box-type furnace with uniform atmosphere filling, gas can be preheated through the preheating mechanism, so that the influence of the gas on the internal temperature of the box-type furnace is reduced, and the heat treatment effect of the box-type furnace on a metal workpiece is improved; and the gas can be uniformly injected into the main body through the gas injection mechanism to make uniform contact withthe metal workpiece, and therefore the heat treatment effect of the box-type furnace on the metal workpiece is further improved.

The invention relates to the technical field of machinery, in particular to a natural light guiding-in system for a shopping mall based on a sunlight converging system. The natural light guiding-in system comprises a reflecting pot used for converging sunlight and fixed to an outdoor roof. The reflective direction of the reflecting pot faces upwards and faces a concave mirror. The concave mirror is fixed to the upper portion of the reflecting pot. The reflective direction of the concave mirror faces downwards and faces a light incident opening of at least one optical fiber cable, and light-emitting openings of the optical fiber cables are located in the indoor space of the shopping mall. The concave mirror and the ends, close to the light incident openings, of the optical fiber cables areboth fixed to a support, and the support is connected with the outer edge of the reflecting pot. The sunlight is reflected to the concave mirror through the reflecting pot and then reflected to the optical fiber cables through the concave mirror; through combining of the reflecting pot and the concave mirror, the sunlight is reflected and converged for the two times so that the sunlight can be transmitted into the optical fiber cables conveniently; and the optical fiber cables are fixed to the lower portion of the concave mirror so that the concave mirror can achieve rain shielding protectionof the optical fiber cables conveniently.

The invention relates to an intelligent high-voltage cable heating and straightening all-in-one machine and a straightening method thereof. The intelligent high-voltage cable heating and straightening all-in-one machine comprises a bottom plate frame, an outer sleeve body, a right seal cover, a left end cover, a heating tube, a lower fixed V-shaped clamping block and a clamping device, wherein the outer sleeve body is arranged at the upper end of the bottom plate frame; the right end cover is arranged at the right end of the outer sleeve body; the left end cover is arranged at the left end of the outer sleeve body; the heating tube is arranged at the lower part of the left end or the lower part of the right end in the outer sleeve body; the lower fixed V-shaped clamping block is arranged at the upper end of the bottom plate frame along an X direction; and the clamping device is arranged in the outer sleeve body. The intelligent high-voltage cable heating and straightening all-in-one machine is compact in structure, reasonable in design, simple and convenient to operate and low in cost; the force application constancy is ensured; and the consistency of clamping force is always kept.

The invention discloses an intelligent enuresis alarm based on a capacitive sensor. Theintelligent enuresis alarm comprises a reel frame, a reel, a motor, a fixed frame, a guide roller, a protective net, an alarm structure, a connecting belt, an air bag, an air box, an exhaust pump, an air inlet pump and a power-off structure;bearing seats are mounted on two side walls of the reel frame; the two ends of the reel are installed in the bearing seats in a matched mode through bearings, a capacitor is connected into a capacitor oscillation circuit composed of a 555 electronic chip, when the capacitance value of the capacitor changes, oscillation frequency generated by a 555 oscillator changes, the rear side of the 555 oscillator is connected with a frequency detection circuit, the frequency change is converted into voltage change, the frequency detection circuit is connected with the voltage detection alarm circuit, and when the voltage exceeds a certain set value, an alarm prompt is given, disabled people or infants with incontinence can be better protected, an alarm structure can be better replaced, the disabled people or infants do not need to get up to replace a bedroll, continuous use can be achieved, and the use comfort is greatly improved.

The invention relates to the technical field of temperature transmitters, and discloses a temperature type transmitter convenient for heat dissipation, which comprises an instrument assembly and a circular hollow heat dissipation box fixed at the back of the instrument assembly and without a front panel, and is characterized in that the instrument assembly comprises a transmitter body; a heat conduction plate within the covering range of the heat dissipation box is arranged on the back of the transmitter body, a small servo motor is fixed to the top of the heat dissipation box, a heat dissipation disc with a plurality of through holes is arranged on the back of the heat dissipation box for heat dissipation, and a rectangular partition plate is arranged in the heat dissipation box. And a rotating rod and a rotating rod which are parallel up and down are rotationally mounted on a rear panel of the partition plate, and a curved bar extending into the heat dissipation box is mounted at the output end of the servo motor in a butt joint manner. The problems that in the prior art, most structures are single, dust is prone to being accumulated on a heat dissipation window under long-time work, the heat dissipation effect is greatly reduced, and use of the heat dissipation window is affected are solved.

The invention discloses large-cavity segmentation ball type ultra-high pressure equipment, belongs to the field of superhard material synthesizing equipment and aims at solving the problems of segmentation ball type ultra-high pressure equipment of small volume of high-pressure cavity, complex assembly, low limit cavity pressure and the like. The large-cavity segmentation ball type ultra-high pressure equipment mainly comprises a top anvil, high-pressure tanks, protective sleeves and a rack, wherein the top anvil is formed by six primary top anvils with a quadrilateral anvil surface or eight primary top anvils with a triangular anvil surface, the bottom of the top anvil is a spheroid curved surface, the top anvil is arranged in the upper and lower hemispheric high-pressure tanks which are additionally provided with elastic sealing package sleeves respectively, the high-pressure tanks are arranged in the left and right protective sleeves respectively, and the large-cavity segmentation ball type ultra-high pressure equipment is formed. According to the large-cavity segmentation ball type ultra-high pressure equipment disclosed by the invention, in order to further increase the limit cavity pressure, a secondary top anvil can be additionally arranged in a cavity enclosed by the primary top anvils, and the amount of the secondary top anvils is six or eight; the cavity pressure of the large-cavity segmentation ball type ultra-high pressure equipment is 25-80 GPa and can be increased by 5-16 times compared with that of the traditional segmentation ball type high-pressure equipment, and the volume of the high-pressure cavity can be increased by 3-5 times.

The invention belongs to the technical field of coil shaping of shell type electric reactors and relates to an intelligent control method and system for an oil press. According to the technical scheme, the system comprises an oil press pressing table (1), a touch screen (2), a control console (3), a PLC (4) and a pressure sensor (5). The touch screen is arranged on the control console, the PLC is arranged in the control console, the oil press pressing table is provided with the pressure sensor, the pressure sensor is connected with the PLC, and the PLC is connected with the touch screen and the control console. The intelligent control system for the oil press improves accuracy and safety of pressure control of the oil press, stage type pressurizing, pressure maintaining and decompressing functions can be achieved in the pressurizing process of the oil press, and the pressing and shaping process of a shell type transformer coil is optimized. The intelligent control system for the oil press has the advantages that pressure control errors are less, the control safety factor is high, the automatic pressurizing, pressure maintaining and decompressing functions can be achieved, various protection functions are complete, and the operation process is safe, convenient, fast and humanized.

The invention provides a low-temperature cooling and pressing device, comprising an upper cooling rod (7), a sample chamber (6) and a lower cooling rod (13) connected in sequence, and the sample chamber (6) is sleeved on the upper cooling rod (7) Outside the lower end and the upper end of the lower cooling rod (13), the upper cooling rod (7) is connected with an upper cooling chamber (10) that can cool the upper cooling rod (7), and the lower cooling rod (13) is connected with a cooling chamber that can cool the lower rod (13). The lower cooling chamber (15) in which the rod (13) cools down, and the low-temperature cooling pressure applying device also includes a pressurizing assembly, which can drive the lower cooling rod (13) to move toward the upper cooling rod (7) and squeeze the upper cooling rod (7). Cooling specimen (30) between cooling rod (7) and lower cooling rod (13). The low-temperature cooling and pressing device can not only realize fast cooling and applying pressure to the sample at the same time, but also can adjust the temperature and pressure in a wide range.

The invention relates to the technical field of applying of lubricating grease to parts, in particular to a handheld lubricating grease applying device for installation of parts. The device is simpleand convenient to operate, synchronous control over a valve and pressurization can be achieved, smooth discharging of lubricating grease can be guaranteed and accelerated, and the using effect is good; a force applying assembly acts on a lifting assembly, then a piston plate is driven to move downwards in a piston barrel, and in cooperation with two one-way valves, the piston barrel inflates a grease storage tank through an exhaust pipe to achieve pressurization; meanwhile, the force applying assembly further acts on an applying assembly through a control assembly, and the valve is opened; incooperation with pressurization of a pressurization assembly, the lubricating grease in the grease storage tank is accelerated to flow into an applying pipe and flow out of an applying head; and the force applying assembly is provided with a reset spring, spring deformation recovery is utilized, when a second grip loses the external force effect, the second grip can reversely act on all components, and pressurization stopping and grease discharging stopping are achieved.

The invention relates to a test device for measuring the axial compression performance of a composite material pipe for structural engineering. The test device is characterized by comprising an upper end plate, a lower end plate, a semicircular steel bar, an axial strain gauge and an annular strain gauge, the upper end plate and the lower end plate are the same in structure, each of the upper end plate and the lower end plate comprises a circular end plate and a cylindrical bulge positioned in the center of the end plate, the two semicircular steel bars are fixed on the end plates through glue, an annular groove is formed between the two semicircular steel bars and the cylindrical bulge, and the groove is used for accommodating the end part of a tubular compression sample; the groove is filled with high-strength gypsum to fix the end part of the sample with the end plate; the axial strain gauge and the annular strain gauge are uniformly distributed on the outer surface of the sample around the circumference of the sample and are positioned in the middle of the sample. The invention further relates to a test method for measuring the axial compression performance of the composite material pipe for structural engineering. The device is simple in structure, flexible and convenient in test method operation, wide in applicability and high in detection precision, and belongs to the technical field of structural material performance detection in civil engineering.

The invention belongs to the technical field of equipment for plate production, and discloses a plate burr removing device which comprises a mounting frame, a driving part, a grinding part and a supporting part are sequentially arranged on the mounting frame from top to bottom, the driving part comprises a driving motor, and the grinding part comprises a rotating shaft coaxially fixed to an output shaft of the driving motor and a grinding disc arranged at the bottom of the rotating shaft; the supporting part comprises a supporting plate and a moving rod fixed to the bottom of the supporting plate, rolling wheels are fixed to the bottom of the moving rod, sliding grooves for the rolling wheels to slide are formed in the mounting frame, and a plurality of suction cups are arranged at the top of the supporting plate; an air cylinder is further fixed to the installation frame. The problem that the labor intensity of workers is large due to the fact that abrasive paper is manually used for polishing is solved.