62 results about "Pinch valve" patented technology

The application discloses a kind of body cavity effusion pressure self-adaptive control drainage device, it is related to body cavity effusion technical field, including drainage tube, the top of drainage tube is fixedly connected with three-way joint;Liquid storage bag is connected to the export end of drainage tube;Pinch valve is set on drainage tube;Pressure sensor is set on three-way joint;Driving assembly is drivingly connected with pinch valve;Control box is electrically connected with pressure sensor and driving motor respectively, and control box is internally provided with microprocessor;And valve handle is set on pinch valve;By setting pressure sensor, control box, microprocessor and driving assembly, and control box is electrically connected with pressure sensor and driving motor respectively, while setting the setting panel electrically connected with microprocessor, so that medical staff can preset pressure safety range according to patient type, and pressure sensor monitors body cavity pressure in real time and feeds back to microprocessor.

The utility model discloses a pinch valve with an adjustable clamping gap, which comprises a valve body, an infrared sensor and a clamping part, the upper end of the valve body is provided with a containing groove for containing a hose, the inner wall of the containing groove is provided with a containing cavity, the containing cavity is internally provided with the infrared sensor for detecting the outer diameter of the hose in the containing groove, and the infrared sensor is connected with the clamping part. The transmitting end and the receiving end of the infrared sensor are oppositely arranged on the outer wall of the hose, the clamping part is located in the valve body, and one end of the clamping part penetrates through the valve body and then is located in the containing groove. According to the pipe clamping valve capable of adjusting the clamping gap, the infrared sensor used for detecting the outer diameter of the hose in the containing groove is arranged in the valve body, the thickness of a pipeline can be automatically detected, and therefore the reserved gap after the hose is clamped can be adjusted according to the size of the hose, and reliable clamping and softness are achieved, and the hose is not damaged.

Powder jet device for cleaning tooth surfaces by applying a powder-gas mixture, comprising a stationary unit (20) with a connection area for a mixing chamber (32) for producing the powder-gas mixture, a handpiece (100) with a nozzle device (102) for blasting the powder-gas mixture onto a tooth surface and a connecting unit (40) for connecting the handpiece (100) to the stationary unit (20), wherein the connecting unit (40) has at least one connecting guide (42) between the stationary unit (20) and the handpiece (100), and wherein a hose section (92) which can be shut off by elastic deformation is arranged in a powder-gas line (44) between the mixing chamber (32) and the nozzle device (102), characterized by that the connecting unit (40) is detachably connected to the stationary unit (20) and that the lockable hose section (92) is arranged in the detachable connection unit (40), wherein the connecting unit (40) has a housing (52) connected to the connecting guide (42), in which the lockable hose section (92) and a pinch element (94) are arranged as a pinch valve and that the connecting unit (40) has a first coupling area (64) for coupling to a corresponding second coupling area (34) of the stationary unit (20).

The invention discloses a time pressure filling method which comprises the following steps: setting a target weight G1 which is 75%-85% of a target filling weight; setting a target weight G2; a first pinch valve opening degree and a second pinch valve opening degree are set, and the second pinch valve opening degree is smaller than the first pinch valve opening degree; the container is located at a filling weighing station, and the filling steps comprise the steps that S1, the pinch valve is opened to a first opening degree and is kept until the detected weight of the filling device reaches G1; s2, opening the pinch valve to a second opening degree, keeping the second opening degree until the detected weight of the filling device reaches G2, and closing the pinch valve; and S3, waiting for a set time length, and ending filling. According to the time pressure filling method, the process of filling while weighing and the low-pressure filling mode are integrated, the functions of filling without bottles and supplementing liquid are achieved through filling while weighing, and the filling precision and the liquid medicine utilization rate of the emptying, calibration, production and tail liquid stages are improved through the low-pressure filling mode.

The invention discloses a double-spring self-locking normally-closed pneumatic pinch valve, which belongs to the field of pneumatic pinch valves, and comprises a valve body, a cover plate, a screw, a rubber neck bush, a spring sheath, an air cylinder piston connecting rod, a movable plate base, an air cylinder, an air tap, a spring, a lower pressing rod connecting rod, an upper pressing rod guide sleeve, an upper pressing rod, a lower pressing rod and a fixing frame. By designing the double-spring structure, the two ends of the pressing rod are evenly stressed, and pressure is evenly applied. Springs are designed to be dispersed on the two sides of the air cylinder, the overall size of the valve body is not increased, and standard performance is improved. The designed rectangular (cross-section) spring is longer in service life than a round (cross-section) spring, and is more durable. The clamping device is installed in a floating mode, centering bidirectional symmetrical extrusion of the neck bush is guaranteed, rubber stress is symmetrically distributed, and the service life is prolonged to the maximum extent.

This utility model relates to the field of clamp valve technology and discloses a dual-channel clamp valve, including a valve body mechanism. The valve body mechanism includes a drive unit, a valve head, and a clamping component that is driven by the drive unit to squeeze the clamping slot of the valve head. It also includes an installation mechanism, which includes a screw seat connected to the tail of the drive unit and a bracket seat with a screw hole screwed onto the screw seat. The bracket seat has several mounting holes for bolts to pass through. The valve head has two clamping slots symmetrical along the clamping component for inserting different hoses. The screw seat is placed at the tail of the drive unit and can be screwed onto the screw seat. This allows the device to be fixed by either the screw seat or the bracket seat. Compared with the prior art, the device has more diverse fixing methods, stronger applicability, and simple replacement operation, making it convenient for operators to use.

1. Name of the product in this design: Three-way pinch valve (micro-residue). 2. Application of this design: This design is intended for the rapid on / off control of fluid flow in pipelines. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

A waste disposal system for agricultural slurry includes a sump, a check valve assembly, and a settling volume. The sump receives an agricultural slurry that is pumped through a check valve assembly to a settling volume. The check valve assembly may include a pinch valve. Optionally, a storage volume that is vented to the atmosphere may be used to further prevent flow from the settling volume to the sump. The settling volume is provided with a discharging device, and the discharging device can discharge redundant water in the slurry to the environment.

The utility model relates to the technical field of biological fermentation equipment, in particular to an automatic sampling device of a fermentation tank, which comprises a sampling pipe, an electric diaphragm valve, a peristaltic pump, a connecting pipe, a controller, an air inlet component and a plurality of groups of sampling components, the electric diaphragm valve is arranged on the sampling pipe, the air inlet assembly and the sampling assemblies are connected with the connecting pipe, the controller is connected with the electric diaphragm valve, the peristaltic pump, the air inlet assembly and the sampling assemblies, the air inlet assembly comprises an air inlet pipe and an air pinch valve, the air inlet pipe is communicated with the connecting pipe, and the air pinch valve is arranged on the air inlet pipe. In this way, the technical problems that manual sampling is adopted in the sampling mode in the prior art, the fermentation process needs to be frequently interrupted, and the contamination risk is increased are solved.

This invention discloses a microbial detection device for deep-processed chestnut products, belonging to the technical field of microbial detection devices for deep-processed products. It includes a frame, a crushing mechanism at the top of the frame, a mixing mechanism below the crushing mechanism, a three-way valve below the mixing mechanism, an overflow pipe and a clamp valve at the other two ports of the three-way valve, a sampling needle below the clamp valve, and a double-layer rotating sampling mechanism below the sampling needle, with a sample tube mounted on the double-layer rotating sampling mechanism. This invention utilizes tangential jetting at the throat of the Venturi tube to create a high-speed vortex, ensuring that starch particles remain suspended and guaranteeing sample representativeness. The integrated crushing and filtration, continuous homogenization, and the three-way overflow clamp valve work together to achieve precise matching of continuous flow and intermittent sampling for dispensing. The inner rotating drum is self-cleaning, the Venturi tube has no moving parts, and the clamp valve has a flexible hose contact design, combined with circulating cleaning, reducing cleaning difficulty and preventing cross-contamination.

This invention discloses an inner liner for a pinch valve with an inflatable sealing ring, belonging to the field of pinch valves. It includes an outer cylinder, an outer support ring, an inner liner, an inner support ring, an upper cover plate, an inner cover plate, a screw and nut assembly, and an inflation / deflation port. The outer cylinder has outer support rings fixedly connected to its upper and lower ends. The inner liner is placed inside the outer cylinder, with its upper and lower ends sandwiched between the outer and inner support rings. An upper cover plate is fixedly connected above the outer support ring, and an inner cover plate is fixedly connected above the inner support ring. Multiple screw and nut assemblies are fixedly connected in a circular arrangement on the outer sides of the upper and lower inner cover plates. An inflation / deflation port is provided on one side of the upper screw and nut assembly. This invention utilizes an annular interlayer to achieve zero-leakage full closure with a lower shut-off air pressure, reducing the rubber expansion and contraction of the inner liner, improving safety, and increasing its service life.

The pinch valve comprises a shell, an opening is formed in one side of the shell, and a channel is formed in one side of the shell; the at least one compressible pipeline is arranged on the shell, and at least part of the compressible pipeline is arranged in the channel; the driving mechanism is mounted on the shell; the moving part is in transmission connection with the driving mechanism, at least one extrusion element is arranged on the moving part, and the extrusion element and the channel are arranged correspondingly; the driving mechanism is configured to drive the moving part to move and drive the moving part to enter the shell from the opening, so that the extrusion element extrudes the pipeline located in the channel to achieve pipeline on-off control, and the pinch valve can improve the fluid control reliability and efficiency and prevent the pipeline from being damaged due to long-term extrusion.

This application provides a pinch valve, including a valve body, a piston, and a clamping structure. The valve body is used to fix a hose extending along a first direction. The piston is located inside the valve body and, under the action of an external force, can reciprocate along a second direction intersecting the first direction. The clamping structure is fixedly connected to the valve body and / or the piston. Under the action of an external force, the piston moves from an initial position to a cut-off position. At the cut-off position, the clamping structure squeezes the hose, cutting off the internal flow channel of the hose. When the internal flow channel of the hose is cut off, the clamping structure and the internal flow channel of the hose are positioned opposite each other. The maximum dimension of the contact portion between the top of the clamping structure and the hose in the third direction is D1, and the diameter of the hose is D2. D1 and D2 satisfy: D1 / D2 < 1. This effectively reduces the force required for hose wall deformation and significantly reduces the total clamping force required to cut off the hose. The pinch valve provided by this application directly solves the problem of high driving pressure in existing pinch valves.

The utility model discloses a self-gravity infrared system octane number standard fuel automatic sample matching device, which relates to the technical field of sample matching and comprises a sample matching frame, a supporting plate is arranged on one side of the inner top of the sample matching frame, a plurality of gallon barrels are arranged on the top of the supporting plate, and weight detection components are arranged at the bottoms of the gallon barrels. A plurality of measuring tubes are arranged on the other side of the top of the sample distribution frame, a mixing assembly matched with the measuring tubes is arranged on one side of the inner bottom of the sample distribution frame, and infrared detection devices matched with the mixing assembly are arranged at the two ends of the outer portion of the sample distribution frame. According to the utility model, the weight of materials in the gallon barrel can be monitored in real time, the accuracy of each-time sample preparation is ensured, according to weight data fed back by the weighing sensor, when the materials in the gallon barrel reach a fixed value of blanking, the pinch valve is opened through the controller, the materials are conveyed into the hose, and the materials naturally flow into the hose under the action of self-gravity, so that the sampling accuracy is ensured. And no additional pump or pressurization equipment is needed.

The invention discloses a heat-resistant long-life high-resilience clip tube valve rubber tube which sequentially comprises an inner rubber layer, a middle rubber layer and an outer rubber layer from inside to outside, reinforcing layers are arranged at the two ends of the middle rubber layer respectively, each reinforcing layer sequentially comprises a first reinforcing layer and a second reinforcing layer from inside to outside, the outer end of each first reinforcing layer is flush with the outer end of the corresponding second reinforcing layer, and the outer end of each first reinforcing layer is flush with the outer end of the corresponding second reinforcing layer. The first reinforcing layer is shorter than the second reinforcing layer, so that the inner end of the reinforcing layer is step-shaped; the reinforcing layer is made of gum dipping cord fabric formed by gum dipping and calendering of PA cord fabric. According to the invention, the ethylene propylene diene monomer and an effective vulcanization system are adopted, so that the rubber material has more excellent heat resistance, and the product has better heat resistance. According to the pinch valve, the rubber pipe is easier to bend, the problem of poor product resilience caused by internal stress concentration is reduced, and the service life is longer.

This invention provides a flexible hose clamp valve structure driven by a through-type stepper motor, belonging to the field of clamp valve technology. It includes a through-type stepper motor, a clamp head, a cylinder, a top tube nut, and a drive control board. The through-type stepper motor drives the clamp head to reciprocate within the cylinder. The drive control board adjusts the input pulse count to change the stroke of the clamp head, thereby changing the gap between the clamp head and the top tube nut. The top tube nut is used to manually adjust its position to readjust the gap. Using a low-power through-type stepper motor, compared to an electromagnetic spring-driven method, it avoids the problem of electromagnet overheating leading to clamping failure. Extensive testing has shown that the clamp valve of this invention can still operate stably, effectively ensuring the reliability of the clamp valve during long-term operation.

A valve assembly may include a valve body including a plurality of conduits extending through the valve body. A valve assembly may include a plurality of pinch bits configured to translate parallel to a first axis to selectively engage the conduits. A valve assembly may include a plunger comprising: a plunger shaft, a first bit guide configured to actuate a first pinch bit of the plurality of pinch bits in a direction parallel to the first axis in response to translating the plunger shaft along a first direction substantially perpendicular to the first axis; and a second bit guide configured to actuate a second pinch bit of the plurality of pinch bits in a direction parallel to the first axis in response to translating the plunger shaft along the first direction, wherein the plunger is configured to translate the first pinch bit and the second pinch bit in opposite directions.

The pinch valve subassembly includes a cage and a diaphragm disposed within the cage. The diaphragm is configured to seal-engage with the cage. Additionally, the cage includes an opening configured to receive a fluid flow and direct the fluid flow through the opening toward the diaphragm, thereby compressing the diaphragm and transitioning the pinch valve subassembly to a closed configuration. The pinch valve subassembly is configured to be disposed within a cavity of a housing in the installation configuration, and the pinch valve subassembly includes a seal that surrounds the cage and is configured to seal-engage with the housing in the installation configuration.

The utility model relates to the field of biological medicine, concretely is a flow cytometer preposition module test system, its simple structure is easy to assemble, and the versatility and flexibility are high, can directly remove and install the module to the whole machine after testing, reduce the difficulty of whole machine debugging later period, reduce the manual cost, it includes bottom frame, install main frame on the bottom frame, install liquid path system in the main frame through screw nut and connecting plate, the front end of main frame is installed through screw nut and has front mounting plate, the front of front mounting plate is provided with sample loader mounting plate and pinch valve mounting plate, install the sample loader on sample loader mounting plate, install pinch valve on pinch valve mounting plate, install lower mounting plate through screw nut on the bottom frame below sample loader, install test tube rack on lower mounting plate.

The utility model discloses an electromagnetic pinch valve which aims at overcoming the defect that an existing electromagnetic pinch valve can only pinch off a single hose. The electromagnetic valve comprises a valve body, a piston and an electromagnetic driving structure for driving the piston to move, a plurality of through holes are formed in the valve body in the direction perpendicular to the axis of the valve body, open grooves for avoiding the through holes are formed in the piston, a long round hole is formed in the piston in the axial direction, the direction of the long round hole is formed in the radial direction of the piston, and a pin hole is formed in the valve body. A connecting pin is inserted into the valve body through the pin hole, the connecting pin is inserted into the long round hole and limits rotation of the piston relative to the valve body, and when the electromagnetic driving structure drives the piston to move, the piston shields the through hole along with displacement of the piston. One pinch valve is used for simultaneously controlling the on-off of a plurality of hoses, so that the market requirements are met.

The utility model relates to a water-saving excrement collecting device for dry latrine transformation in a water-deficient area, which belongs to the technical field of dry latrine transformation and comprises a special toilet stool, and a dirt collecting component and a negative pressure component are arranged at the bottom of the special toilet stool. The dirt collecting assembly comprises a dirt collecting tank. According to the water-saving excrement collecting device for improving the latrine in the water-deficient area, the air pump is controlled by the control system to pressurize the pressurizing tank for standby application, and the negative pressure generating device forms negative pressure for standby application; the water spraying valve pipe is controlled by the pressurizing tank to spray water to the surface of the toilet stool, so that a lubricating effect is achieved, and excrement is convenient to clean; the first pinch valve and the second pinch valve are opened, air in the bedpan is pumped out, a low-pressure area is formed, and excrement is sucked into the dirt collecting tank from the bedpan through external atmospheric pressure; and then the pinch valve I and the pinch valve II are closed, the booster tank controls the water spray valve pipe to spray water to the surface of the toilet, and the drain outlet I and the drain outlet II are closed, so that the effects of saving water and preventing back flushing of excrement smell during water-saving and excrement-collecting are achieved.

The utility model belongs to the technical field of pipe clamp device and provides a kind of pipe clamp valve integrated module of combined control flow path, comprising: cabinet, it includes upper end cover, lower end cover and damping hinge;Damping hinge is equipped between upper end cover and lower end cover, and several installation grooves are opened in upper end cover upper surface, and pipe groove is opened in lower end cover upper surface, silicon tube is arranged in pipe groove inside, and silicon tube forms several flow paths by branch, and cylindrical pin is fixed in flow path inner wall, and drive part is installed in installation groove top surface;Chuck subassembly, it includes screw rod, piston and chuck;The utility model is set to cabinet and chuck subassembly, uses silicon tube as the component of contact with medium, and the accurate extrusion positioning of cooperation chuck and flow path inner wall cylindrical pin is adopted, liquid enters valve body cavity is avoided, and the risk of dead volume residual and cross contamination is fundamentally eliminated, diaphragm is not easy to damage, make hose replacement need not to disassemble pipeline, and only need to overturn upper end cover to complete.

The invention relates to a pump head module (2) for a dense phase powder pump (1), wherein the pump head module (2) comprises at least one powder conveying chamber (40) which is fluidically connected or connectable to a first powder reservoir via a powder inlet (3) and fluidically connected or connectable to a second powder reservoir or a powder spray device via a powder outlet (4). According to the invention, the pump head module (2) is of modular construction and comprises the following individually replaceable or interchangeable components: a powder inlet module block (20); a first pinch valve module block (21) which is detachably connected to the powder inlet module block (20); a first filter module block (22) which is detachably connected to the first pinch valve module block (21); a second pinch valve module block (21) which is detachably connected to the first filter module block (22); a second filter module block (22) which is detachably connected to the second pinch valve module block (21); and a powder outlet module block (23) which is detachably connected to the second filter module block (22).

The invention relates to the technical field of water quality detection equipment maintenance, and discloses a flow path cleaning system and method for traceability instrument equipment. The flow path cleaning system comprises a clear water tank, a booster pump, a ball valve assembly, a grit chamber, a water intake, a three-way ball valve, a diaphragm pump, a pressure sensor, a filter module, a first sample cup, a peristaltic pump assembly, a second sample cup, a flow cell, a pinch valve, a first electromagnetic three-way valve, a pure water tank, a waste liquid pipe, an air compressor, a second electromagnetic three-way valve and a washing liquid barrel. The water quality fingerprint traceability instrument can effectively remove silt, suspended solids and water sample impurities remaining in the flow path, meanwhile, through air purging, residual moisture is eliminated, bacterial colonies and algae breeding is inhibited, the accuracy of the detection result of the traceability instrument is guaranteed, the manual maintenance cost is reduced, and the water quality fingerprint traceability instrument is suitable for daily cleaning and maintenance of water quality fingerprint traceability instrument equipment.

The invention relates to the technical field of cell culture, and discloses a cell culture method based on a car-t therapy, which comprises a channel conversion valve, a peristaltic pump, a dynamic culture unit, a static culture unit, a centrifugal transduction mechanism, an electric pinch valve, a material bag, a flow meter, a magnetic controller, a magnetic bead cleaning unit and a waste liquid collection unit. According to the cell culture method based on the car-t therapy, the cell culture efficiency is improved, the clinical transformation period is shortened, the time loss is reduced through automatic material transmission, the culture environment is accurately controlled, the cell activity is optimized, the gene transduction efficiency is improved through a centrifugal transduction mechanism, exogenous pollution is avoided through a totally-closed process, the process safety is enhanced, and the pollution risk is reduced; the whole process is automatic, personal errors are reduced, the process management and control capability is improved in traceability, automation and intelligence are achieved, labor dependence is reduced, cultivation cost is reduced, technology popularization is promoted, materials are efficiently utilized, waste is reduced, and labor cost is reduced through automation.

The utility model relates to the technical field of pinch valves, in particular to a flexible pipe sleeve for a pneumatic pinch valve, an axial lead is limited, the flexible pipe sleeve is provided with a deformable pipe sleeve main body, the pipe sleeve main body is provided with a plurality of guide grooves extending in the circumferential direction, the center of each guide groove is located on the same radial section of the flexible pipe sleeve, and the center of each guide groove is located on the same radial section of the flexible pipe sleeve. And therefore, the flexible pipe sleeve generates an easy-to-deform area with smaller wall thickness in the axial direction. Compared with the prior art, when the flexible pipe sleeve is extruded by compressed air, compared with other axial positions, the area prone to deformation tends to be extruded inwards so as to guide the flexible pipe sleeve to be closed at the specific position in the axial direction.

The utility model discloses a disposable membrane exosome purification device which comprises a sample bottle, a PBS (Phosphate Buffer Solution) bottle and a purification chip, a first infusion pipeline connected with the sample bottle is provided with a first pinch valve for controlling the connection and disconnection of the first infusion pipeline, and a second infusion pipeline connected with the PBS bottle is provided with a second pinch valve for controlling the connection and disconnection of the second infusion pipeline; a third infusion pipeline connected with the outlet end of the purification chip is provided with a third pinch valve for controlling the connection and disconnection of the third infusion pipeline; a peristaltic pump for providing infusion power is arranged on a fourth infusion pipeline connected with the inlet end of the purification chip; and the sample bottle, the PBS bottle, the purification chip and the matched infusion pipeline form a disposable membrane bag. The exosome purification device solves the problems of complicated operation, high cost, limited treatment capacity, easiness in pollution and the like in the existing exosome purification technology.

The invention relates to a pinch valve (1) for a filling device (2) for filling a container (3) with a pharmaceutical material, comprising at least: a valve housing (4); a hose (5) for conveying the pharmaceutical material, which hose is arranged at least partially in or on the valve housing (4); a driver (24); a pressing element (7) for pressing the hose (5), which pressing element can be rotated about an axis of rotation (8) by means of a drive (24) into a closed position (9), in which the pressing element (7) closes the hose (5), and into an open position (10), in which the pressing element (7) at least partially opens the hose (5). The invention also relates to a filling device (2) equipped with such a pinch valve (1), and to a method for filling a container (3) with a pharmaceutical material.

A device that may be a valve or a pinch valve is disclosed. The device includes at least the following components: (1) a flexible sleeve and (2) two end connection ports that are located on opposite ends of the flexible sleeve. The device may also include one or more of the following: an actuator, a body or housing, and a heating element. The flexible sleeve is capable of having the high-temperature material flowed therein and being in direct contact with the flexible sleeve. The high-temperature material is a material at a temperature above 200° C. For example, the high-temperature material may be a molten material in a casting process. A method of using the device is also disclosed. The method involves, at least, the following steps: (1) providing a flexible sleeve, and (2) flowing a high-temperature material into the flexible sleeve. The steps may be part of a casting process involving molten material, such as molten metal or molten metal alloy. The flexible sleeve may be provided as part of a device, such as a valve or pinch valve.