35results about How to "Cases to prevent backflow" patented technology

The invention discloses a multifunctional transfusion chair and relates to a medical instrument. The multifunctional transfusion chair comprises a chair body, the chair body is constituted by a seat plate, baffles, a backup plate and supporting legs, the backup plate is arranged at the right side of the top face of the seat plate, the baffles are arranged at the front side and the rear side of the top face of the seat plate respectively, the support legs provided with omni-directional wheels are arranged at the four corners of the bottom end of the seat plate, a clamping part is arranged at the middle end of the inner side of each supporting leg, and a drawing-and-pulling type article storage plate is arranged on the clamping parts; a grab handle is arranged at the upper end of the right side face of the backup plate, a containing box is arranged at the lower end of the grab handle, a battery box is arranged at the rear end of the containing box, an extending-and-contracting transfusion rack is arranged at the rear end of the battery box, and the top end of the battery box is connected with a remote controller through a wire; the baffles are provided with grooves and fixed plates, the left sides of the top ends of the baffles are connected with a small article storage plate through a rotating assembly, and each fixed plate is connected with the corresponding groove through a bottom end support frame and can be retracted for being placed in the corresponding groove. The multifunctional transfusion chair is suitable for both an adult and a child, abundant in function, easy and convenient to operate and great in practicability.

The invention discloses a sewage treatment device with sterilization and indoor heating functions. The device consists of: a second filter screen, an air cylinder, electric heating blocks, heat dissipating fins and a placement plate. The second filter screen is disposed for further filtering of the sewage entering a filter box, thereby improving the sewage filtration effect, the air cylinder is utilized to drive a piston to move downward in the filter box to extrude the sewage in the filter box, thus accelerating the speed of the sewage passing through the second filter screen, thus improvingthe sewage filtration efficiency, the electric heating blocks are employed to heat the sewage entering a sterilization box, thus realizing the purpose of high temperature sterilization of the sewage and improving the equipment practicability, the heat dissipating fins are disposed for increasing the heat dissipating area of a heating box, thus realizing the purpose of heating the indoor with the heat of the sewage in the heating box, realizing full utilization of heat, saving resources and improving the equipment practicability.

The invention relates to the technical field of medical instruments, and discloses a peritoneal dialysis monitoring device which comprises a telescopic rod, a flow stopper is arranged on the outer wall of the bottom end of the telescopic rod and comprises a supporting lantern ring, the supporting lantern ring is fixedly arranged on the outer wall of the bottom end of the telescopic rod in a sleeving mode, and a temperature control box body is fixedly connected to the top face of the telescopic rod. A temperature guide device is arranged in the temperature control box body and comprises a temperature guide plate, the left face and the right face of the temperature guide plate are fixedly connected to the left inner wall and the right inner wall of the bottom end of the temperature control box body respectively, sliding grooves are formed in the top ends of the left inner wall and the right inner wall of the temperature control box body, an infusion support is arranged between the two sliding grooves, and a temperature monitor is arranged below the temperature control box body. The temperature monitor comprises a fixing frame A, the right face of the fixing frame A is fixedly connected with a fixing seat, a clamping plate is attached to the front portion of the fixing seat, the top side wall of the right end of the rear-end metal lantern ring is fixedly connected with a thermometer, the temperature of peritoneal dialysis liquid can be monitored more accurately, and the safety of peritoneal dialysis is effectively improved.

The invention discloses a resistance-free check valve with an energy-saving effect for a power station. The resistance-free check valve comprises a valve body, wherein a reinforced anti-corrosion anti-sticking mechanism is fixedly connected to the inner wall of the valve body, a first mounting valve seat is fixedly connected to one side of the valve body, a second mounting valve seat is fixedly connected to the other side of the valve body, a circulation port is formed in the inner wall of the first mounting valve seat, and a positioning flange is arranged on the outer side surface of the first mounting valve seat. According to the resistance-free check valve with the energy-saving effect for the power station, a lubricating type adjustable check mechanism, the reinforced anti-corrosion anti-sticking mechanism and a multifunctional monitoring mechanism are arranged, so that fluid check operation can be conveniently and better carried out in a channel, a good lubricating effect is achieved, the resistance is almost zero, the use strength of the device can be improved, the service life of the device can be prolonged, the anti-corrosion effect is excellent, the internal use condition can be conveniently monitored, the use function of the device is increased, and a better use prospect is brought.

The invention discloses a municipal sewage pipeline, which comprises a main flow pipe, a connecting flange and a branch flow pipe, the connecting flange is arranged at the end of the main flow pipe, the branch flow pipe is fixed and communicated to the surface of the main flow pipe and is close to the end, and a flow inlet, a flow outlet, a horn-shaped flow guider and a backflow prevention device are arranged in the main flow pipe. The flow inlet is formed in the end of the main flow pipe and close to the branch flow pipe, the flow outlet is formed in the end, away from the flow inlet, of the main flow pipe, and the horn-shaped flow guider is fixed in the main flow pipe and located at the flow inlet. And the backflow prevention device is arranged in the main flow pipe, is close to the horn-shaped fluid director and is connected with the branch flow pipe in a matched manner. The invention relates to the technical field of municipal sewage disposal equipment. According to the municipal sewage pipeline, the purpose of backflow prevention is achieved, sewage backflow can be effectively prevented, the influence caused by sewage backflow is reduced, the service life of equipment is prolonged, the sewage discharge efficiency is high, and the use performance is improved.

The invention discloses a water conservation-used pipeline. The pipeline comprises a water inlet, a water conservation pipeline body, a first fixing and connecting disc, a water outlet pipe, a water outlet and a connecting pipeline, wherein the water inlet is formed in one side of the water conservation pipeline body, a water inlet pipe is arranged on one side of the water inlet, a silt filteringaway device is arranged at a joint between the water inlet pipe and the water inlet through a connecting seat, the top of the water inlet pipe is provided with a water suction pump through a screw rod, the bottom of the water inlet pipe is provided with an industrial water purifier through a connecting seat, the working end of the industrial water purifier is located in the water inlet pipe, one side of the water inlet pipe is provided with the first fixing and connecting disc through a high-strength bolt, one side of the first fixing and connecting disc is provided with the connecting pipeline, one end of the connecting pipeline is provided with a check valve through a placing frame, and the top of the connecting pipeline is provided with a hydraulic pressure gauge through a connecting seat. The water conservation-used pipeline is powerful in function, scientific in design, convenient to operate, good in stability, high in reliability and suitable for wide popularization.

The invention provides a compressor and an air conditioner. The compressor comprises a rotor (1), wherein a rotor circulation hole (11) penetrating through two axial end surfaces is formed in the rotor (1); a non-return device (2) is arranged on one axial end surface of the rotor (1), and comprises a conical valve (21); the conical valve (21) is inserted into the rotor circulation hole (11) and can be shocked by an air flow in the rotor circulation hole (11), so that the conical valve (21) opens the rotor circulation hole (11); and the conical valve (21) can be further shocked by an air flow on one side, reversed to the rotor, of the conical valve (21) so as to close the rotor circulation hole (11). Through the compressor and the air conditioner provided by the invention, the occurrence ofthe phenomenon that a refrigerant reflows from the rotor circulation hole in the working process of the compressor is effectively prevented, the refrigerating capacity of the compressor is effectively improved, and the power consumption of the compressor is reduced.

The invention discloses real-time monitoring equipment for ecological flow discharged by water conservancy and hydropower engineering, which structurally comprises a main body, data conversion equipment and a fixing block, the data conversion equipment is arranged in the middle of the top of the main body, and the fixing block is located at the side end of the top of the main body; the main body comprises a flow collecting block, a turbine device and a back flow block, the back flow block comprises a conversion block, a rotating shaft, blades and a flow rectifying device; the flow rectifying device comprises a flow rectifying block, a water through hole, a flow guiding device and a flow smoothing block; the water through hole comprises a water through groove, a flow guiding port, a partition plate and a flow smoothing plate; and the partition plate comprises a plate body, a sand filtering hole and a sand guiding block. According to the invention, the sediment mixed in water flow is guided backwards through the water passing grooves in the rectification blocks, the situation that the sediment flows backwards along with the water flow from the water passing grooves is prevented, the situation that the rotating speed of the rotating shaft is increased due to the fact that the sediment is mixed in the water flow is avoided, and the equipment can accurately monitor the water flow.

The invention discloses a liquid return prevention sampling gun, which relates to the technical field of sampling guns. The liquid return prevention sampling gun comprises a sampling gun main body, a non-return assembly and a gun head assembly, wherein the outside of one side of the sampling gun main body is provided with antiskid lines, a piston pressing head is installed above the sampling gun main body, the non-return assembly is fixed below the sampling gun main body, the non-return assembly comprises a liquid inlet pipe, a non-return cavity, a flow channel, a mounting frame, a high-pressure air bag, a corrugated pipe and a jacking spoiler, the liquid inlet pipe is connected to the lower end of the middle part of the sampling gun main body, and the non-return cavity is formed in the outer part of the lower part of the sampling gun main body. According to the liquid return prevention sampling gun, the high-pressure air bag and the corrugated pipe drive the jacking spoiler at the upper end to be tightly attached to the outer side of the lower portion of the liquid inlet pipe through the non-return assembly, the liquid inlet pipe can be blocked, the situation of liquid return is prevented, and the micro suction cup of an inclined structure can be tightly attached to the inner wall of a container during sample adding; and the condition that bubbles appear during pipetting due to hand shaking can be avoided.

The invention relates to the field of sewage treatment devices, in particular to a sewage pipe treatment device, which includes a sewage pipe, a sewage intercepting structure, a floating matter collection structure, an anti-clogging structure, a decontamination structure and a sealing structure; When on the board, under the gravity of the rainwater, the impact plate can be pressed down, because the impact plate is fixedly connected with the fixed ring through the connecting rod, and because the end of the fixed ring near the inner side wall of the sewage pipe is provided with a brush, Therefore, in the process of pressing down on the impact plate, the brush can be driven to clean the inner side wall of the sewage pipe, thereby preventing oil from adhering to the inner side wall of the sewage pipe. Under the action of the elastic force, the impact plate can be reset, so that the brush can continuously clean the sewage pipe.

The invention discloses a multifunctional basin adopting an air bag for massage. The multifunctional basin comprises a first lifting device, a second lifting device, an anti-skid sleeve, a protectivecover, an anti-skid pad and a basin body, the first lifting device and the second lifting device are arranged so that a user can lift the basin body conveniently, and therefore the portability of thebasin is improved; by arranging an anti-skid sleeve, the friction force between the hand of a user and a third connecting rod is increased when the user holds the third connecting rod with the hand, so that the situation that when the user holds the third connecting rod with the hand, slipping occurs is avoided, and the practicability of the equipment is improved; by arranging the protective cover, when a user pours water into the using bin, the motor is prevented from being soaked in the water, so the function of protecting the motor is achieved; and by arranging an anti-skid pad, the friction force between the inner wall of a rotating groove and a rotating ball is increased, the rotating ball is prevented from rotating in the rotating groove under the condition that no external force isexerted on the rotating ball, and therefore the situation that the air outlet box shakes at will is further avoided.