568 results about "EXTENSION TUBES" patented technology

The invention discloses a noise reduction method of a bionic fish scale blade centrifugal pump, which comprises the following steps that a long and short blade centrifugal pump is selected for research, and the main design parameters of the long and short blade centrifugal pump are as follows: the specific speed ns is equal to 40.79, the rated flow Qd is equal to 10.6 m < 3 > / h, the lift H is equal to 34m, and the rotating speed n is equal to 2900r / min; a computational domain three-dimensional model of the long and short vane centrifugal pump is established through Creo8.0; in order to prevent backflow of inlet and outlet sections, ensure that fluid stably flows into an impeller and ensure the accuracy of a simulation result, extension pipelines are additionally arranged at an impeller inlet and a volute outlet of the centrifugal pump, the pipe diameter of the inlet extension section is 4 times that of the outlet extension section, and the pipe diameter of the outlet extension section is 8 times that of the inlet extension section; in order to verify the accuracy of a calculation result, a centrifugal pump experiment platform is built for external characteristic experiments; the bionic fish scale pit has the advantages that the dynamic and static interference between the impeller and the volute is reduced, the pressure fluctuation in the pump is stabilized, the amplitude fluctuation of a wave number-frequency spectrum and the energy region of a low wave number region are reduced, the migration of a wave number-frequency spectrum peak ridge is reduced, the curve change is gentle, and then the noise reduction effect is achieved.

A vascular access instrument advancement device may include a housing and an extension tube extending through the housing. The extension tube may extend through the housing. The extension tube may include a first lumen and a second lumen. A blood collection pathway may extend through the first lumen. A wedge may be disposed within the housing and the second lumen of the extension tube. A pair of opposing pinch members may be configured to pinch the extension tube. The pair of opposing pinch members may be disposed within the housing proximal to the wedge and configured to move along the extension tube with the housing. An instrument may extend distally from the wedge. The instrument may be disposed within the second lumen. In response to moving the housing distally along the extension tube, the pair of opposing pinch members push the wedge distally and the instrument is advanced distally.

The utility model is suitable for the technical field related to medical instruments, and provides a valve auxiliary system sheath which comprises a shell assembly and a catheter sheath tube arranged on the shell assembly. The bending adjusting handle is used for adjusting the angle of the tail end of the catheter sheathing canal, and the bending adjusting handle is connected with the shell assembly; the catheter sheath is used for being matched with the catheter sheath tube to achieve introduction of an interventional instrument or conveying of an auxiliary instrument; the flushing valve is used for conveying medicaments, and the flushing valve is communicated with the catheter sheath through an extension tube body; the catheter sheath tube, the catheter sheath, the flushing valve and other components are arranged in a matched mode, so that the dilator can be always kept in the catheter sheath tube in the original position in the process that the catheter sheath tube enters the access blood vessel of a patient, blood cannot permeate out of a product, use is convenient, and the valve positioning accuracy and the operation safety are effectively improved.

The invention belongs to the technical field of geothermal energy development and utilization, and particularly relates to efficient extraction equipment for a deep geothermal exploitation well, which comprises a plurality of water pumping devices, the plurality of water pumping devices are sequentially communicated in series through a plurality of extension pipe fittings, and the water pumping device close to a wellhead is fixedly connected with a steel wire rope on hoisting equipment; the water pumping device comprises a water pumping mechanism, a well cementation assembly and a guide mechanism, the outer wall of the water pumping mechanism is sleeved with the well cementation assembly, the well cementation assembly is used for making friction contact with the well wall so as to keep the working position of the water pumping mechanism in a well, and the guide mechanism is arranged at the bottom end of the water pumping mechanism and used for guiding the water pumping mechanism to work. And the guide mechanism is used for smoothly lowering the water pumping mechanism into the well and keeping the water pumping mechanism coaxial with the well body. It is guaranteed that the water pumping mechanism is stably fixed in a well, smoothly lowered to the bottom of the well and always coaxially positioned with the well body, and the stability of extraction operation is improved.

The invention discloses a seabed sludge sampling device for marine geological survey, the seabed sludge sampling device comprises an extension arm, the bottom of the extension arm is provided with a collection member, the collection member comprises: a connection frame installed at the bottom of the extension arm; and the sampling piece is installed on the connecting frame and used for sludge sampling treatment, and the sampling piece comprises a protective shell fixedly connected with the connecting frame. According to the seabed sludge sampling device for the marine geological survey, the extension arm, the connecting frame and the sampling piece are transferred to a sea land sludge accumulation position by an external submersible, the shell, the driving piece, the recovery piece, the multiple groups of extension pipes and the auger are driven by the hydraulic cylinder assembly to move towards the sludge accumulation end, and the multiple groups of extension pipes are inserted into sludge by a proper depth; the motor drives the multiple sets of augers to rotate through the belt wheel assembly, the two sets of driving shafts and the multiple sets of bevel gear assemblies, and the augers are rotated to guide sludge guided into the extension pipe into the recycling box through the extension pipe and the blocking piece.

The invention discloses an intermittent occlusion balloon catheter system for treating heart failure. The system comprises a five-cavity double-balloon catheter, the five-cavity double-balloon catheter comprises a cavity tube body, a first balloon arranged in a pulmonary artery and a second balloon arranged in a superior vena cava, and the first balloon and the second balloon are both fixed to the surface of the cavity tube body; a round head is arranged at the far end of the cavity tube body, and the diameter of the round head is not larger than the outer diameter of the catheter. The near end is connected with the extension tube assembly through an injection molding head; the cavity tube body is provided with five cavity channels which are respectively communicated with the first balloon extension tube, the second balloon extension tube, the thermistor extension tube, the far-end extension tube and the near-end extension tube; the injection pump is driven by the stepping motor, and the controller adjusts the advancing and retreating motion period of the stepping motor, so that the injection pump is controlled to charge and discharge liquid to the second balloon. By intermittently blocking the superior vena cava, the heart filling pressure is reduced, and therefore heart hyperemia and volume overload are prevented.

The dust collector comprises a dust collector body, an extension pipe and a locking assembly, and the dust collector body is provided with a matching surface; the extension pipe extends in the first direction, and the extension pipe is provided with a locking seat; the locking assembly is arranged on the locking seat, the locking assembly locks the matching surface in a releasable mode, and the locking assembly comprises a locking button seat; when the locking button base is under the upward acting force in the first direction, the locking assembly and the matching face are unlocked, and the extension pipe moves upwards along the first direction along with the locking base. According to the dust collector, the matching face of the dust collector body, the locking base on the extension pipe and the locking button base in the locking assembly are matched together, the direction in which a user triggers the locking button base is kept consistent with the extension pipe dismounting direction, operation of the user is facilitated, and then the use experience of the user is improved.

The utility model discloses a hoisting clamp for long pipe transportation, and belongs to the technical field of pipeline transportation. The clamp comprises a pair of clamping arms, and each clamping arm comprises an adjusting groove and a supporting pipe bracket; the connecting rod comprises a fixing rod, the two ends of the fixing rod are hinged to the clamping arms through bolts, the connecting rod further comprises an adjusting rod, and the adjusting rod is hinged to the adjusting grooves in the two sides in a sliding mode; the adjusting screw rod is arranged between the fixed rod and the adjusting rod, and a fastener is arranged outside the adjusting screw rod in a surrounding manner; and a long pipeline. According to the hoisting clamp for long pipe transportation, the clamping arms on the two sides are connected through the connecting rods, the arm unfolding angles of the clamping arms are controlled through the adjusting screw rods, the supporting pipe bracket and the jacking bracket jointly wrap a pipeline and are locked through the fastener, the truss lifting hook penetrates through the lifting hole to conduct hoisting, the clamping arms can be accurately adjusted according to the diameter of the pipeline, it is ensured that the pipeline is attached to the supporting component, and therefore the hoisting efficiency is improved. And the supporting pipe bracket and the jacking bracket adopt cambered surface design, so that the pipeline is uniformly supported, and the service life of the pipeline is prolonged.

The invention discloses an efficient freezing radiofrequency ablation catheter and ablation system, and belongs to the technical field of freezing ablation, the efficient freezing radiofrequency ablation catheter comprises a needle head part, a catheter part, a handle part, a water injection connector part, a catheter extension tube part and a plug assembly; the needle head part is of a metal head structure, and the near end of the needle head part is connected with the inner and outer multilayer structures of the catheter part; the catheter part is of a multi-layer flexible tube structure and is used for connecting the handle part and the needle head part; the handle part is held by a user, the near end of the handle part is connected with the catheter extension tube part and the water injection joint part, and the far end of the handle part is connected with the catheter part; the water injection joint part is used as a water quantity control water inlet; the catheter extension tube part expands the use range; the plug assembly realizes plugging and fixation of a product. The flexible ablation catheter can be widely applied to natural orifice ablation operations and has the advantages of integration of cold and hot ablation design, diversity of ablation application range, high ablation efficiency and the like.

The utility model discloses a detection device for wading trousers, which comprises a water tank and a lifting plate arranged on the water tank, an air cylinder arranged outside the water tank is connected with the lifting plate, a clamping assembly used for clamping the upper end of the wading trousers is arranged on one side of the lifting plate, an air inlet pipe with one end extending into the water tank is arranged on the lifting plate, and an extension pipe is arranged in the air inlet pipe. One end of the extension pipe extends out of the air inlet pipe and is located in the water tank, an air bag is arranged in the water tank, the air bag is consistent with the wading trousers in shape, and the overall size of the air bag is smaller than the size of the wading trousers; the outer wall of the clamping plate is provided with a guide groove connected with the triangular plate in a sliding mode, the extension pipe is provided with a ventilation valve, the ventilation valve is located above the clamping plate, in the prior art, detection is conducted after the inside of wading trousers is inflated, each piece needs to be clamped and used after being filled with air, the overall detection efficiency is low, and the efficiency of filling the inside of the wading trousers can be improved through the wading trousers detection device.

The utility model relates to the technical field of injection molding equipment, in particular to a feeding device of a plastic bottle injection molding machine. According to the technical scheme, the device comprises a tank body, a hopper, an extension pipe and a machine body, an extension plate is arranged on the machine body, the tank body is arranged on the extension plate, a pump body is arranged on the upper surface of the tank body, the tank body is communicated with the hopper through a connecting pipe, the hopper is arranged on the machine body, and the extension pipe is arranged at the lower end of the hopper. And an electric heating wire is arranged in the extension tube. Under the action of negative pressure, redundant materials in the hopper can be conveniently removed, follow-up production is facilitated, the humidity in the hopper can be effectively reduced in cooperation with the electric heating structure, and mutual bonding of plastic particles caused by the fact that the humidity in the hopper is too large is avoided.

The utility model discloses an anti-loosening device for an electromechanical installation pipeline, and relates to the technical field of pipelines. Comprising three bottom plates and mounting rods mounted on the bottom plates, each mounting rod is provided with an anti-falling assembly, each anti-falling assembly comprises a positioning mechanism and an adjusting mechanism, each positioning mechanism comprises a mounting sleeve, sliding grooves, an adjusting threaded rod and a clamping plate, the mounting sleeves are mounted on the mounting rods, and the sliding grooves are formed in the mounting sleeves and symmetrically distributed; through the cooperation of the adjusting threaded rod and the sliding block, the position of the clamping plate can be conveniently adjusted, the device can adapt to electromechanical pipelines with different pipe diameters, the universality of the device is improved, a first spring provides continuous elastic clamping force, the friction force is increased through cooperation of a rubber pad and a friction groove, the electromechanical pipelines can be effectively prevented from loosening under various working conditions, and the practicability is high. Safe and stable operation of the electromechanical system is guaranteed, the first spring can buffer vibration while playing a clamping role, damage to the pipeline caused by vibration is reduced, the service life of the pipeline is prolonged, and the maintenance cost is reduced.

The invention discloses multi-angle anti-corrosion paint spraying equipment for spiral steel pipe machining, and belongs to the field of paint spraying equipment. The multi-angle anti-corrosion paint spraying equipment for spiral steel pipe machining comprises a circular ring, block bodies are arranged on the two sides, close to a fixing frame, of the circular ring, the circular ring is slidably connected with the fixing frame through the block bodies, an inner cavity is formed in the circular ring, a necking pipe is fixedly connected into the inner cavity, a fixing block is fixedly connected to the inner wall of the circular ring, and a through hole is formed in the fixing block. A motor is fixedly connected to the outer side of the fixing block, a ball is rotationally connected into the through hole, the output end of the motor is fixedly connected with the ball, a middle pipe is fixedly connected to the outer side of the ball, a circular hole is formed in the outer side of the end, away from the middle pipe, of the ball, and a feeding pipe is fixedly connected to the middle of the bottom of the circular ring. By starting the motor on the outer side of the fixing block, the motor drives the ball to rotate in the through hole, and the middle pipe, the extension pipe and the spray head are driven to rotate to a preset spraying angle.

The utility model relates to the technical field of shockproof fixing devices, and discloses a hydrogen conveying pipeline shockproof fixing device for a hydrogen energy automobile, which comprises a hydrogen pipe and a hydraulic damping rod, the outer side of the hydrogen pipe is fixedly sleeved with an I-shaped sleeve, and the left end and the right end of the hydraulic damping rod are fixedly sleeved with bearings. The hydraulic damping rods are rotationally installed in the I-shaped sleeve through bearings, a fixing piece is fixedly connected between the left end and the right end of the hydraulic damping rod on the lower side, a shock absorber is fixedly installed at the lower end of the fixing piece, and supporting arms are fixedly connected to the left ends and the right ends of the hydraulic damping rods on the front side and the rear side correspondingly. And connecting shafts are fixedly connected between the lower ends of the supporting arms. Shockproof protection is provided for the hydrogen pipe in all directions, the risks of pipeline deformation and fatigue cracks caused by vibration are greatly reduced, the service life of the pipeline is effectively prolonged, the running safety coefficient of a hydrogen energy automobile is improved, meanwhile, installation is convenient, and tedious operation of traditional bolt connection is abandoned.

The utility model relates to a valve sealing property testing arrangement, including detection case and support platform, its technical key point is: support platform is hollow round table and is equipped with with its intercommunication lower positioning ring on the upper surface, the lower surface of support platform is equipped with the extension pipe of inserting detection case bottom liquid layer, the outer circumferential surface of support platform is equipped with lower horizontal air inlet pipeline, the side of detection case is equipped with cantilever frame, and the longitudinal cylinder is fixed in cantilever frame top plate end, and the lower end of the cylinder rod of longitudinal cylinder is fixed with upper pressure seat, and upper pressure seat is hollow seat and is equipped with with its intercommunication upper positioning ring on the lower surface, and the center line of upper positioning ring and lower positioning ring coincides, and the outer circumferential surface of upper pressure seat is equipped with upper horizontal air inlet pipeline, and upper horizontal air inlet pipeline is equipped with the longitudinal air escape pipeline that end extends to the below of detection case bottom liquid layer. The device solves the problem that the accuracy of one-way detection needs to be improved, and the sealing property detection accuracy of valve body is significantly improved through bidirectional detection structure.

This application provides a tea tray drainage accessory, including: an air vent valve, a lid, or a water bucket. The air vent valve controls the air release from the water bucket. When the water level reaches a control point, it reduces the air release from the water bucket or shuts off the air vent, creating positive pressure inside the bucket to prevent water from the hose from flowing into the bucket. It automatically shuts off when the water is full. A pressure relief button releases the pressure inside the bucket and indicates whether the bucket is full. An extension tube prevents air from being ejected from the tea tray. The water inlet is located on the lid or top of the water bucket to avoid air resistance, automatically draining water from the tea tray into the water bucket. An inner connector has a switch to prevent water from the tea tray from flowing out of the hose. The air vent valve has a through hole with a movable pin inside. A float is located below the movable pin, and a pressure relief button is located above the movable pin. When the water level in the bucket pushes the float upward, the movable pin moves upward in the through hole, reducing the air release from the water bucket or shutting off the air vent. The pressure inside the bucket increases, preventing water from the hose from flowing into the bucket.

The application discloses a pneumatic nail gun with adjustable barrel length and relates to the field of pneumatic nail guns, which comprises a gun body, a barrel fixed at the front end of the gun body, a gun head arranged at the front end of the barrel, an extension pipe arranged between the barrel and the gun body, and butt joint assemblies arranged at both ends of the extension pipe. The butt joint assemblies are used for butt joining the extension pipe with the gun head and the barrel. An insurance assembly is arranged at the trigger position of the gun body and is used for locking the trigger of the gun body in a non-working state. A trigger assembly is arranged on the gun head and is used for driving the insurance assembly to unlock the trigger when the gun head after each extension pipe is butted against the surface of a workpiece in butt joining. The extension pipe can be conveniently butt joined with the barrel and the gun head, so that the user can flexibly assemble different numbers of extension pipes according to the actual working space depth requirement, so as to realize the adjustment of the barrel length.

The utility model discloses an anti-splashing breathing machine extension tube which comprises a sealing device. One end of the elastic element is connected with the sealing device; the sleeve is connected to the outer part of the elastic element in a sleeving manner; one end of the sleeve is connected with the sealing device; the air inlet assembly is communicated with the outer side of the sleeve; the ventilation pipeline is located in the sleeve, and the ventilation pipeline is connected with the other end of the elastic element; the one-way valve structure is arranged on the inner side wall of the end, close to the elastic element, of the ventilation pipeline and used for communicating the sealing device, the elastic element and the ventilation pipeline to form a first channel; the connector is of a cylinder structure with one end opened, a containing groove is formed in the cylinder structure, the connector is connected to the outer portion of the ventilation pipeline in a sleeving mode through the containing groove, and the end face of an opening of the connector is connected with the sleeve. By arranging the sealing device and the one-way valve structure, the situation that pollutants are splashed in the trachea intubation process can be avoided; in addition, through mutual cooperation of the air inlet assembly, the elastic element, the ventilation pipeline and the sleeve, functional adaptation and full-automatic switching in all modes can be achieved.

The utility model provides an anti-coagulation tube auxiliary bending connecting device which comprises a sticking piece, the back face of the sticking piece is provided with mucilage glue, and the front face of the sticking piece is provided with a rotating disc. A joint is arranged on the turntable, an auxiliary bending sleeve is arranged at one end of the joint, an extension tube is arranged at the other end of the joint, and more than one transverse buckle and more than one longitudinal buckle are arranged around the center of the sticking sheet; the transverse buckle and the longitudinal buckle can be clamped with the outer diameter of the auxiliary bending sleeve or the extension pipe in a matched manner; one end of the anti-coagulation tube is connected with a human body, and the other end of the anti-coagulation tube penetrates into the auxiliary bending sleeve and then is connected with one end of the connector in an inserted mode. The utility model solves the technical problems in the prior art that the anti-coagulation tube is easy to separate from the joint due to elastic force generated by bending the anti-coagulation tube, and the joint is easy to press the skin to cause pressure sores.

This utility model discloses a color-coded multi-functional tee and extension tube connection device, including a straight-through multi-way valve and a first extension tube. The straight-through multi-way valve has a first port, a second port, and multiple bypass ports. The first port and the second port are located at opposite ends of the straight-through multi-way valve. The multiple bypass ports are spaced apart axially along the straight-through multi-way valve. The first extension tube is fixedly connected to the first port. The straight-through multi-way valve is equipped with multiple switch knobs, each corresponding to one of the multiple bypass ports, used to control the opening and closing of the corresponding bypass port. Each switch knob is marked with a different color. This color-coded multi-functional tee and extension tube connection device enables intuitive differentiation of multiple bypass ports, improves identification, and enhances medical safety and emergency response efficiency.

The utility model relates to a novel horizontal flow distribution pipe of a shallow slot sorting machine, which comprises main pipes connected to two ends of a four-way pipe, the main pipes are obliquely arranged, the two main pipes are symmetrically arranged, a plurality of wear-resistant branch pipes are arranged on the main pipes, and the wear-resistant branch pipes are in one-to-one correspondence with interfaces of the shallow slot sorting machine. The distance between the abrasion-resistant branch pipes is equal to the distance between connectors of the shallow groove sorting machine, a first flange is arranged at the end, away from the four-way pipe, of the main pipe, and a first flange plate is installed on the first flange. The wear-resistant branch pipes are connected with the connector of the shallow slot sorting machine, the main pipe with the gradient is arranged, media can be prevented from being deposited in the pipeline, the service life of the pipeline is prolonged, the wear-resistant branch pipes can enable materials to be evenly distributed, the density of suspension liquid is stable, and the sorting precision of the shallow slot is improved. And the first flange plate is mounted on the first flange, so that the first flange plate can be conveniently detached, the interior of the main pipe can be conveniently cleaned, and pipeline blockage is avoided.

The application relates to the technical field of medicine injection, and particularly discloses a protective injection device for radioactive medicine, which comprises an extension pipe and a cylinder made of radiation shielding material, one end of the cylinder is provided with a cylindrical slot, a through hole is arranged at the middle position of the bottom of the cylindrical slot, a ring-shaped cover is arranged on the middle part of the outer side of the extension pipe, the two sides of the cover are respectively fixedly connected with the outer side of the extension pipe, an opening is arranged in the inner wall of the extension pipe and communicates with the inner cavity of the cover, a sliding hole is arranged on the outer side of the cylinder and close to the bottom of the cylindrical slot, and a moving block which can seal sliding is arranged on the sliding hole, the technical scheme of the example of the application can accurately control the injection amount of the radioactive medicine, reduces the waste of the radioactive medicine, when the hand of a medical staff approaches the needle, there is no radioactive medicine in the needle, and the radiation dose received by the hand of the medical staff is reduced.

The utility model discloses a pore type viscous damper which comprises a cylinder barrel, sealing end covers, pistons and a piston rod, the sealing end covers and the pistons are arranged at the two ends of the cylinder barrel, the piston rod is installed in the cylinder barrel and penetrates through the two sealing end covers and the pistons, and the pistons comprise three sub-pistons which are the first piston, the second piston and the third piston. The piston divides the cylinder barrel filled with the damping liquid into a first cavity and a second cavity, a damping hole extension pipe is arranged between the first piston and the second piston, the third piston is arranged between the first piston and the second piston, the damping hole extension pipe penetrates through the third piston, and the third piston is fixedly connected with the damping hole extension pipe. The length of the damping hole can be effectively increased, the length of the damping hole can be self-adaptively adjusted, and the damper is prevented from being damaged.

The present application relates to the technical fields of anti-choking drinking water control, and provides an anti-choking drinking water control method and device, which comprises a cup body, a cup cover connected to the top side of the inner wall of the cup body through a sealing ring, an adjusting cavity fixedly connected to the bottom end of the cup cover, an extension pipe connected to the bottom end of the adjusting cavity through a splicing assembly, a gravity ball fixedly connected to the bottom end of the extension pipe, a through hole for ensuring water flow on the outer wall of the gravity ball, a suction nozzle fixedly connected to the top end of the cup cover, a rubber pad slidingly connected to the inner wall of the adjusting cavity, and a connecting pipe fixedly connected to the top end of the rubber pad. Through the threaded transmission cooperation of the spiral sleeve and the spiral rod, the rubber pad is vertically slid in the adjusting cavity, and then the blocking ball is opened under the negative pressure generated by the appropriate suction force, the waterway is opened under the negative pressure generated by the appropriate suction force, and the blocking ball quickly falls to block the bottom end of the adjusting cavity when there is no negative pressure, so as to avoid the free flow of residual water and realize the flexible adjustment of the suction force.

The invention discloses a flushing device for a pickling test and a transformation method thereof, belongs to the technical field of shipbuilding, and aims to solve the problems of low pickling efficiency and the like of an existing pickling device. The invention discloses a flushing device for a pickling test. The flushing device comprises a liquid outlet elbow; the liquid inlet is communicated to the acid solution storage device, the liquid outlet can be located above or below the base by adjusting the mounting direction of the base, and the liquid outlet elbow can be detachably connected to the liquid outlet; and the extension pipe can be detachably communicated between the liquid outlet bent pipe and the liquid outlet so as to enlarge the liquid outlet coverage range of the liquid outlet bent pipe. According to the flushing device for the pickling test and the transformation method of the flushing device, the liquid outlet coverage range of the liquid outlet bent pipe can be enlarged by additionally arranging the extension pipe, when the number of samples needing to be pickled is large, a user can hold the liquid outlet bent pipe to move within a certain range, an acid solution is sequentially sprayed to the samples needing to be pickled, and the pickling time is greatly shortened. Samples originally needing batch pickling can be completed at a time, and the pickling efficiency is high.

The utility model relates to the technical field of mechanical equipment lubrication, and discloses a lubricating grease filling sealing structure which comprises a filling mechanism, and a cleaning mechanism is arranged on the outer side of the filling mechanism. The filling mechanism comprises an oil storage barrel, a push block is movably connected into the oil storage barrel, a conical block is fixedly connected to the left side of the bottom of the push block, a connecting rod is fixedly connected to the right side of the push block, a handle is fixedly connected to the end, away from the push block, of the connecting rod, a barrel nozzle is arranged on the left side of the oil storage barrel, and a connecting ring is fixedly connected to the left side of the barrel nozzle. A connecting frame is arranged on the left side of the connecting ring, a hollow through hole is formed in the left side of the connecting frame, an extension pipe is movably connected into the through hole, and a sealing gasket is fixedly connected to the right side of the extension pipe. According to the lubricating grease filling sealing structure, through threaded connection and the use of the sealing gasket, the sealing ring and the gasket, the sealing performance in the filling process is ensured, leakage of lubricating grease is avoided, and the filling efficiency is improved.

The present invention relates to the technical field of anastomosis devices, and in particular to a swinging mechanism for anastomosis devices and an anastomosis device thereof, the swinging mechanism comprising an actuator seat, an extension tube, a push rod and a swinging seat; the rear end of the swinging seat has a left groove and a right groove, the front end end of the left push rod has a left hook, and the front end end of the right push rod has a right hook; the present invention utilizes the left hook and the right hook to cooperate with the left groove and the right groove respectively, on the one hand, so that during the swinging of the actuator seat from the center position to the left extreme position or the right extreme position, only a single push rod applies force to the actuator seat, so as to prevent the extension tube from being bent and deformed due to excessive force on the actuator seat at the left extreme position and the right extreme position, thereby improving the operation accuracy during surgery; on the other hand, the two push rods always keep in contact with the swinging seat, so that the actuator seat will be constrained by the two push rods during the swinging process between the left extreme position and the right extreme position, thereby ensuring the stability of the actuator seat during the rotation process.

An endobronchial blocker includes an operation box, an extension tube, a ballon, an inflation module, and an elbow module. The extension tube is connected to the operation box. The extension tube has a first passageway and at least one second passageway therein. The ballon is disposed on one end of the extension tube and is in communication with the first passageway. The ballon is in a deflated state during movement. The inflation module is connected to the first passage for supplying a gas to the ballon. The elbow module is assembled to the operation box and includes a pulling means and a control handle. When in use, the control handle is operated to move the pulling means, enabling the extension tube to bend or straighten, thereby reducing the risk of surgical interruption due to poor quality of the left / right lung respiration.

This utility model discloses a practical adjustable wrench with a vertical handle, comprising a wrench body and an extension sleeve. The wrench body includes a wrench head, a fixed jaw integrally connected to the top of the wrench head, a movable jaw slidably connected to the other side of the top of the wrench head, and a handle integrally connected to the bottom of the wrench head. The extension sleeve is fitted onto the outside of the handle and is threadedly connected to the handle. A detachable handle is installed at the bottom of the extension sleeve. A connecting rod is rotatably connected inside the handle. The bottom of the connecting rod passes through the bottom of the handle and has a knob fixed at its end. The top of the connecting rod is placed inside the wrench head. A transmission mechanism is provided between the connecting rod and the movable jaw. The operation logic of installing the extension sleeve after adjusting the opening avoids the inconvenience of carrying the entire long handle into a narrow space, which is a traditional tool, and significantly improves the flexibility of initial positioning. The threaded connection structure between the extension sleeve and the handle forms a rigid whole.

The utility model provides a pouring device for steam pressurized concrete block production, which comprises a grouting tank, a discharging hopper is arranged at the discharging end of the grouting tank, the pouring device comprises a pouring pipe, the feeding end of the pouring pipe is communicated with the discharging hopper, and an extension pipe is inserted in the periphery of the pouring pipe; the utility model relates to the technical field of pouring devices, an output end of a telescopic piece drives a connecting rod to move downwards, the connecting rod is connected with a discharging end of an extension pipe, the extension pipe drives the flow dividing shell to extend into a cavity of an external mold so as to shorten the falling distance of slurry, and slurry outlets are formed in the two ends of the flow dividing shell. The connecting rod drives the flow dividing shell to move downwards into the inner cavity of the forming mold, slurry splashing is prevented by changing the discharging height of the slurry injection tank, the situation that splashed slurry is solidified around the mold and inconvenient to clean is prevented, and waste of the slurry is reduced.