112results about How to "Improve suction effect" patented technology

The thrombus aspiration catheter with the high stability comprises a hollow catheter body, one end of the catheter body is provided with a negative pressure end connected to an external negative pressure component and a sealing end connected with a hollow guide wire tube, and the guide wire tube penetrates through the sealing end and extends to an aspiration end arranged at the other end of the catheter body. A negative pressure hole is formed in the side, close to the negative pressure end, of the guide wire tube, the end, close to the suction end, of the guide wire tube is connected with a thrombus breaking component, an adsorption part is arranged at the joint of the thrombus breaking component and the guide wire tube, a plurality of adsorption holes are formed in the circumferential direction of the adsorption part, and the negative pressure hole is connected with the adsorption holes through a connecting channel arranged in an inner cavity of the guide wire tube. Therefore, thrombus broken by the thrombus breaking component can be adsorbed conveniently. After the thrombus breaking component rotates, a large thrombus can be broken into a small thrombus, the large thrombus is prevented from blocking a catheter and a blood vessel, the thrombus suction effect is improved, the thrombus suction stability of the catheter is improved, and the suction operation efficiency is improved.

The invention relates to the technical field of colla corii asini decocting, and discloses an automatic colla corii asini decocting device which comprises a decocting pot body, a mounting frame is fixed to the decocting pot body, a first servo motor is fixed to the mounting frame, the output end of the first servo motor is connected with a rotating shaft, the rotating shaft is connected with a stirring rod, and the stirring rod is connected with a motor. A rotating shaft is fixed on the mounting frame, a material collecting box is arranged on the circumference of the rotating shaft, an air extracting pump communicated with the material collecting box is fixed on the mounting frame, a defoaming mechanism is fixed at the bottom of the material collecting box, and the defoaming mechanism removes floating foam above the liquid level through air suction; according to the technical scheme, when the rotating shaft drives the stirring rods to stir liquid, the defoaming mechanism can be driven to rotate together, so that the defoaming mechanism can firstly collect scum on the surface of the liquid, and after collection, air suction is performed through the air suction pump, so that the defoaming mechanism generates negative pressure to suck out the scum in the material receiving groove, and the scum removal work is facilitated.

The utility model discloses a novel cutter suction head of a dredger. The cutter suction head comprises a mounting main body, a driving shaft, a winch head structure and a plurality of mud suction pipes, wherein the driving shaft penetrates through the mounting main body and is rotationally mounted; the winch head structure is arranged at the front end of the driving shaft; auxiliary crushing mechanisms are further arranged on the two sides of the mounting main body; the twisting head structure comprises a conical frame installed at the front end of the driving shaft, and a plurality of separated cutter pieces and integrated cutter pieces which are arranged on the conical frame in a staggered mode. According to the utility model, through the structure of the plurality of separated cutter pieces and the integrated cutter pieces which are arranged in a staggered manner, the twisting force can be dispersed during crushing, so that the crushing effect of the twisting faucet is enhanced, and the efficiency of dredging and sucking mud is improved.

The utility model discloses a cylinder body and cylinder barrel oil duct cleaning device which comprises a base plate, a handle is installed on the upper side face of the base plate, a main rod is installed on the lower side face of the base plate, a brush head is fixedly connected to the lower end of the main rod, bristles are fixedly connected to the brush head, a plurality of water spraying openings are formed in the brush head, and the bristles and the water spraying openings are distributed alternately. The brush head is provided with a plurality of water spraying openings, the water spraying openings are mutually connected with an external water pump, a plurality of suction pipes used for sucking sewage and impurities after cleaning are fixedly connected below the brush bristles and located on the brush head, and the suction pipes are mutually connected with an external negative pressure pump. A cleaning agent can be sprayed out through the water spraying opening while the brush is used, operation can be facilitated, the sprayed cleaning agent and impurities can be sucked out by the suction pipe in the downward flowing process, and the situation that the cleaning agent and the impurities flow into the cylinder body and the cylinder barrel, and consequently the follow-up cleaning difficulty is increased is avoided.

The utility model relates to a welding smoke purification device which comprises a workbench, an air draft assembly used for conducting air draft on the upper end face of the workbench is arranged on the workbench, the air draft assembly comprises an air draft part, an adjusting assembly used for adjusting the position of the air draft part, an air pump and an air draft pipe, and the adjusting assembly is arranged on the workbench; the adjusting assembly comprises a supporting frame, a rotating part and a sliding part, the lower end of the supporting frame is fixedly installed on the workbench, the upper end of the rotating part is rotationally connected to the lower end face of the supporting frame along the horizontal plane, and the sliding part is slidably arranged on the rotating part in the length direction of the rotating part; the side, close to the workbench, of the air draft part is provided with an air draft opening used for allowing smoke to enter the air draft part, one end of the air draft pipe communicates with the air draft part, and the air pump is arranged at the end, away from the air draft part, of the air draft pipe.

The invention discloses a double-balloon in-aorta balloon counterpulsation device, and relates to the technical field of medical equipment. The balloon catheter comprises a control host, a catheter shaft, a main balloon and an auxiliary balloon, the catheter shaft is arranged on the control host, and the main balloon and the auxiliary balloon are arranged at the other end of the catheter shaft; the main balloon is a long-strip-shaped hollow air bag, the auxiliary balloon is any one of a cylindrical hollow air bag, a conical hollow air bag and a hemispherical hollow air bag, and an inner cavity of the main balloon is larger than an inner cavity of the auxiliary balloon. A guide wire channel is arranged in the catheter shaft and penetrates through the auxiliary balloon and the main balloon; by arranging the main balloon and the auxiliary balloon, when the left ventricle begins to contract and the aortic valve is opened, the main balloon begins to contract, and meanwhile, the auxiliary balloon delays to start to contract, so that the suction resistance to the telecentric end when the main balloon contracts is increased, the reverse blood flow extracted from the telecentric end is reduced, the suction effect on the proximal end is improved, and the cardiac output is increased.

The invention provides an adjustable bending suction catheter, a suction device and an operating handle, and relates to the field of medical instruments, the adjustable bending suction catheter comprises a catheter body structure, a traction piece and an embedded support; the far end of the traction piece is fixed to the far end of the tube body structure, and the far end of the tube body structure can be pulled to bend towards one side of the pulled traction piece by pulling the traction piece towards the near end; the embedded stent is connected to the far end of the tube body structure in an embedded mode and comprises a plurality of wavy stent rings arranged at intervals in the axial direction, a plurality of connecting ribs are connected between the adjacent wavy stent rings in the circumferential direction at intervals, and all the connecting ribs are spirally arranged around the central axis of the wavy stent rings in the same rotating direction. The suction device comprises the adjustable bent suction catheter. The technical problem that in the prior art, a suction catheter cannot be designed into an automatic bending adjusting structure due to the fact that flexibility and radial supporting force cannot be considered at the same time is solved.

The utility model discloses a smoke exhaust ventilator and an oil smoke exhaust system, which belong to the technical field of smoke exhaust ventilators, and comprise a main machine provided with an air inlet, the main machine is used for absorbing oil smoke through the air inlet, the air inlet is provided with two groups of movable door plates which are opened and closed oppositely, and the two groups of movable door plates are used for changing the opening area of the air inlet through opening and closing. According to the range hood disclosed by the utility model, the area of the air inlet is set to be adjustable, so that the pressure of the air inlet is changed, the suction effect of the range hood is further improved, the application range of the range hood is effectively expanded, and the range hood has relatively high applicability.

The utility model discloses a water quality sampling equipment for water environment pollution prevention and treatment belongs to water quality sampling technical field, aims at solving the problem that sampling part of prior art is directly exposed to outside environment, is vulnerable to collision, scratch and other damage. Including fixed frame, suction assembly and handle, fixed frame is U shape structure, and the inside rotation of fixed frame is installed with the rotation axis of horizontal arrangement, and suction assembly sets up on the rotation axis and rotates synchronously, and multiple groups are arranged at suction assembly interval. Suction assembly includes liquid storage pipe, mounting block and pull block, and the bottom end surface of liquid storage pipe is fixedly connected with mounting block, and mounting block is L shape structure, and pull block sets up between liquid storage pipe and mounting block, and the vertical inner sliding slot is seted up on the lateral wall of mounting block. The water quality sampling equipment for water environment pollution prevention and treatment, under the non - sampling state, suction assembly can be stably received in the inside of fixed frame, and the risk of equipment damage caused by collision, scratch and the like in the complex field environment is reduced.

The present invention provides a range hood, which relates to the technical field of kitchen appliances. The range hood includes a smoke collecting hood and a smoke guide plate. The smoke collecting panel of the smoke collecting hood is provided with a smoke inlet. The smoke guide plate is located outside the smoke inlet and corresponds to the smoke inlet. The left area of ​​the inner wall of the smoke guide plate is rotatably connected to a left supporting arm, and the right area is rotatably connected to a right supporting arm. The smoke collecting hood is equipped with a driving device. The driving end of the driving device is connected to the left supporting arm and the right supporting arm, and is used to drive the left supporting arm and the right supporting arm to perform telescopic movement. The smoke guide plate rotates relative to the smoke collecting panel under the telescopic action of the left supporting arm and the right supporting arm, and forms a left smoke collecting chamber and / or a right smoke collecting chamber with the smoke collecting panel. The range hood can adjust the form of the smoke collecting chamber formed by the smoke guide plate according to the user's use of the burner, so that the suction intensity when cooking with a single burner is greatly enhanced, and the suction effect of the range hood on cooking with a single burner is correspondingly improved.

The utility model discloses an auxiliary device for winding a metal coil of an atomizer, relates to the technical field of auxiliary devices for winding metal coils, and aims to solve the problems that static electricity is easily generated due to friction during winding of wires, and the accumulation of electrostatic charges possibly causes increase of attraction force between the wires or between the wires and a winding machine, so that the winding efficiency is improved. The utility model relates to a coil winding device, in particular to a coil winding device which solves the problems that a wire rod is adhered, wound or jumped in the winding process, the winding precision and stability of a coil are affected, and negative influences are possibly generated on the electrical performance of the coil. A linear sliding rail is installed on one side of the upper portion of the winding device, and a supporting plate is arranged on one side of the winding device; the device comprises a supporting plate, limiting sliding rods are symmetrically installed above the supporting plate, a winding auxiliary structure fixing plate is arranged above the limiting sliding rods in a sliding mode, a wire processing mechanism is arranged in the middle of the upper portion of the winding auxiliary structure fixing plate, and a cleaning mechanism and a static electricity removing mechanism are arranged in the wire processing mechanism.

The utility model relates to the technical field of engine connecting rod cracking, in particular to a connecting rod slag suction device. The device comprises a large-head positioning block, the large-head positioning block comprises a fixed base and a positioning column, and the positioning column is fixedly arranged on the top face of the fixed base; two opposite sides of the fixed base are provided with slag suction channels, and each slag suction channel is provided with a slag inlet and a slag outlet which are communicated with the wall surface of the fixed base; the pipeline connecting seat comprises a mounting plate and a connecting pipe fixedly connected to one side of the mounting plate; the mounting plate is fixedly connected to the fixed base in a matched mode, and a first receding hole communicated with the slag outlet is formed in the mounting plate in a penetrating mode. The connecting pipe is communicated with the first avoiding hole; and the suction device is connected with the connecting pipe through a pipeline and is used for sucking and sweeping the dregs. According to the device, the double slag suction channels are arranged corresponding to two connecting rod separation surfaces, so that the suction caliber is reduced, and the suction force at the connecting rod separation surfaces is enhanced.

The invention provides a fan and electric equipment, and belongs to the field of fans. The fan comprises a centrifugal impeller, an air inlet cover, an axial flow impeller and a fluid director. The air inlet cover is arranged on the outer side of the centrifugal impeller in a covering mode and provided with an air inlet located in the upstream of the centrifugal impeller and an air channel communicated with the air inlet and used for guiding airflow to be exhausted in the axial direction of the draught fan. The axial flow impeller is arranged at the downstream of the air duct and is used for doing work on air flow exhausted by the air duct; the fluid director is arranged on the downstream portion of the axial flow impeller and used for guiding airflow exhausted from the axial flow impeller to flow in the axial direction of the draught fan. Compared with a single-stage acting structure, the fan and the electric equipment provided by the invention are more beneficial to improving the overall pressure rise and suction capacity and reducing noise, so that airflow is stably output in the axial direction, and the quality of an airflow outlet flow field and the energy utilization efficiency are improved.

The present invention discloses a split-type high-efficiency fume capture device for annular cooler unloading, comprising a split-type unloading hood and T-shaped sealing grooves arranged on both sides of the lower end of the split-type unloading hood; wherein the split-type unloading hood is connected to the annular cooler platform through the T-shaped sealing groove, and the split-type unloading hood is sleeved on the top of the annular cooler trolley; a plurality of air suction ports are arranged in the middle of the upper part of the split-type unloading hood; guide plates are arranged on both sides of the bottom of the split-type unloading hood, and the guide plates are located below the air suction ports, wherein the plurality of air suction ports are connected to dust removal pipelines for capturing smoke at the annular cooler unloading place of the sintering machine; the present invention changes the structure of the split-type unloading hood and arranges T-shaped sealing grooves to prevent smoke from escaping, thereby effectively improving the dust capture efficiency.

The invention provides a hyperbaric oxygen chamber oxygen inhalation mask for a patient with an indwelling stomach tube, and belongs to the technical field of medical instruments. Comprising an oxygen inhalation mask, a sputum suction mechanism is arranged on the inner side of the oxygen inhalation mask and used for sucking and removing sputum on the inner side of the nasal cavity of a stomach tube patient, the sputum suction mechanism comprises a second rubber hose fixedly connected to the inner side of the oxygen inhalation mask, and one end of the second rubber hose is fixedly connected with a corrugated hose; one end of the corrugated hose is fixedly connected with a first rubber hose; the stomach tube is arranged on the inner side of the second rubber hose and penetrates through the inner side of the first rubber hose, and sealing rubber used for sealing the first rubber hose and the stomach tube is arranged at the contact position of the inner side of the first rubber hose and the stomach tube. Through mutual cooperation of the sputum suction mechanism and the sputum removal mechanism, sputum in the nasal cavity can be sucked into the inner side of the corrugated hose through the Z-shaped through hole, and the effect of cleaning the nasal cavity of a patient is achieved.

A switch belongs to the technical field of low-voltage apparatus parts. Comprising a shell in which a first accommodating space is formed; the contact system comprises a static contact assembly and a moving contact assembly, the static contact assembly is arranged in the first accommodating space, and the moving contact assembly is arranged in the first accommodating space; the electromagnetic operating mechanism comprises a fixed iron core and a movable iron core; the pair of mounting side plates are fixedly arranged on the shell in a face-to-face manner; the main shaft is arranged on the mounting side plate and is provided with a transmission part; the fixed iron core is arranged on the pair of installation side plates, the movable iron core and the main shaft are fixedly arranged, the fixed iron core and the movable iron core are attracted through excitation of an electromagnetic coil arranged in the fixed iron core, the movable iron core drives the main shaft to rotate in the rotating process, and the transmission component drives the movable contact assembly to make contact with the static contact assembly to achieve closing. The device has the advantages that the structural stability is improved; the pull-in effect of the fixed iron core and the movable iron core is improved, and the closing reliability of the movable contact assembly and the static contact assembly is guaranteed.

The utility model discloses a kind of air-insulated ring network switch devices of temperature rise control, the air-insulated ring network switch devices of temperature rise control include box, ring network switch device body, multiple first partitions are equipped in the box, and the equipment area of accommodating single ring network switch device body is formed, the both sides of the ring network switch device body are equipped with side plate, the side plate is equipped with several equidistance first radiating fins, the bottom of the equipment area is equipped with several equidistance ventilation holes. Hot air inside box is sucked to outside by heat dissipation fan, cold air enters by ventilation hole, and heat exchange is carried out with first radiating fin, and the suction efficiency of flow guide groove is improved, hot air is conducted to second radiating fin by radiating portion on the top of box, and hot air is discharged by top cover, and the heat dissipation effect is enhanced, by optimizing hot air flow path and the mutual cooperation of multiple radiating structures, reduce local overheating risk, improve equipment operation stability and security.

According to the high-suction-stroke impeller type self-priming pump of the two-way self-priming structure, an inner pump shell is arranged on the outer side of an impeller in an outer wrapping mode, water inlets are formed in the upper end and the lower end of the impeller, a water outlet is formed in the outer side of the impeller in an annular mode, and the water inlet in the upper end of the impeller communicates with the interior of a lower support through an impeller ring; a water inlet in the lower end of the impeller is communicated with a water inlet cavity in the bottom of the outer pump shell, an original single-face water inlet mode is improved into a mode that a water inlet pipe is divided into two, water inlets are formed in the upper end and the lower end of the impeller, a layer of inner pump shell is additionally arranged on the outer side of the impeller, and water flowing in from the two ends is pressurized and integrated; therefore, small net positive suction head can be effectively realized, the suction lift is greatly improved, and the suction lift can reach 8 meters under normal pressure.

The present invention discloses an air guide ring, a centrifugal fan and a range hood, wherein the air guide ring is used for the centrifugal fan, and the air guide ring is used to be installed at the air inlet of the centrifugal fan, and the air guide ring comprises: an annular air guide portion, the annular air guide portion is at least partially configured to be constricted in the air inlet direction, the inner edge of the annular air guide portion is used to extend into the volute of the centrifugal fan, the inner edge of the annular air guide portion comprises a shallowest point and a deepest point, and the deepest point protrudes from the shallowest point in the air inlet direction; and a mounting portion, which is arranged at the outer edge of the annular air guide portion. In this way, the adaptability of the centrifugal fan to the air supply environment with unstable wind pressure can be improved.

The utility model discloses a safety testing device for an intelligent terminal of a gas meter, which comprises a safety testing device, and the top of the safety testing device is communicated with a detection joint. According to the utility model, the detection joint is moved to the periphery of the safety test device, then a user starts the control assembly, rotates the sealing plate, enables the opening and the rectangular groove to be ventilated, then the user starts the fan, the fan blows air to the top, the air force extrudes the convex block, the convex block moves upwards, and the ventilation opening is opened. Meanwhile, the bottom of the fan conducts air draft, air around the safety testing device is absorbed into the sealing pipe, meanwhile, the control assembly is closed, the bottom of the sealing pipe is sealed, meanwhile, the fan is closed, wind power at the bottom of the protruding block disappears, the spring rebounds to reset the protruding block, and then the air in the sealing pipe is detected through the safety testing device; and the safety test device achieves the effect of facilitating accurate detection.

The present application relates to the technical fields of chemical filling, in particular to a clean automatic filling gun and gun seat for barrel-packed wet electronic chemicals, which comprises a filling gun and a gun seat used for clamping and fixing the filling gun, a movable arm with telescopic function is arranged on the side wall of the gun seat, a driving mechanism used for driving the whole movable arm to move is arranged on the gun seat, a female clamping seat is arranged at the end of the movable arm away from the gun seat, the filling gun is clamped and fixed with the female clamping seat, a gas baffle used for blocking the diffusion of corrosive tail gas is arranged on the female clamping seat, the movable arm is hollow and communicates with the gas baffle, and a communication structure used for communicating the movable arm with an external air extraction and exhaust system is arranged on the gun seat. The present application has the effect of improving the air extraction effect of corrosive tail gas generated in the process of filling wet electronic chemicals, thereby improving the safety in the process of filling wet electronic chemicals.

The stable tobacco powder and rubber powder removing device for the ZJ17 cigarette making and plug assembling machine comprises a body arranged between a paper cutter and a converging drum wheel, the lower end face of the body is a step face with the left side higher than the right side, and an inverted-L-shaped step opening in the lower end face of the body and a tangent line at the corresponding position of the converging drum wheel form a triangular buffer area used for preventing equipment from being damaged after tobacco clamping. A connecting hole located below the negative pressure connecting pipe is formed in the outer side wall of the body in a penetrating mode, a tongue plate on a ZJ17 cigarette making and plug assembling machine wallboard is inserted into a square hole in the side wall of the body, and a long shaft of the ZJ17 cigarette making and plug assembling machine is sleeved and locked with the connecting hole. By optimizing the tobacco powder and rubber powder removing structure, reliable positioning of the body in the axial direction and the circumferential direction is achieved, vibration or movement of the body in the axial direction and the circumferential direction in the using process is avoided, the defect that a traditional installation structure is poor in stability and prone to failures is overcome, popularization and application of the tobacco powder and rubber powder removing structure on the ZJ118 type are achieved, and the tobacco powder and rubber powder removing structure is suitable for the ZJ118 type. The failure rate in the using process is reduced, and stability and reliability are high.

The invention relates to the technical field of medical instruments, and discloses a double-balloon coronary artery thrombus aspiration catheter, according to the scheme, an aspiration cannula is movably arranged in the aspiration catheter in a penetrating mode, and a connecting piece and a guiding piece which are arranged in an umbrella shape are arranged at the front end of the aspiration cannula. Meanwhile, the aspiration cannula is conveyed forwards and rotated, thrombus blocks with large sizes are mashed, the thrombus aspiration efficiency can be improved, a certain guiding effect is achieved through the guiding piece in the process that the aspiration catheter moves along the blood vessel, the end of the aspiration cannula is prevented from making direct contact with the inner wall of the blood vessel, and the thrombus aspiration efficiency is improved. Damage to the blood vessel wall in the suction catheter moving process is avoided; meanwhile, the space where the thrombus is located is blocked through the first balloon and the second balloon which are arranged in a front-back spaced mode, overflowing of the thrombus in the aspiration process is avoided, flushing fluid or medicine can be injected along the aspiration catheter, the aspiration efficiency and the aspiration effect of the thrombus are effectively improved, and operation safety and effectiveness are guaranteed.

The utility model discloses a kind of range hood, including shell, exhaust device and oil cup;Shell has suction panel and the smoke collection cavity located in the inboard of suction panel, and suction panel has smoke collection cavity, first air inlet is equipped in smoke collection cavity, and first air inlet is communicated with smoke collection cavity;Exhaust device suction oil fume through first air inlet, and exhaust oil fume from smoke collection cavity;Oil cup is connected on shell, for receiving the oil liquid discharged by smoke collection cavity.This utility model's range hood, open smoke collection cavity on suction panel, first air inlet is arranged in smoke collection cavity, and oil fume towards suction panel will first enter smoke collection cavity, then flow into first air inlet, smoke collection cavity can play the effect of flow collection to oil fume, prevent oil fume from easily escaping from the area near first air inlet, to increase the residence time of oil fume near first air inlet, so that oil fume can be more fully sucked into first air inlet, to improve the suction effect of range hood to oil fume.

The present invention relates to the technical field of sewage pumps, and specifically to a split sewage pump, comprising a mounting base, an upper end face of the mounting base being fixedly connected with a connecting base and a pump body, an upper end face of the connecting base being fixedly connected with a driving motor, supporting frames being fixedly connected with the connecting base and opposite side walls of the pump body, a plurality of circumferentially arranged retaining frames being fixedly connected between two of the supporting frames, a mounting end cover being fixedly connected with a side wall at the right end of the pump body by a plurality of bolts, a conveying chamber being provided in the pump body, a fan blade being rotatably connected in the conveying chamber, an intercepting mechanism being provided in conjunction with structures such as a transmission shaft, a retaining frame and a driving motor, so that when the pump body is pumping sewage, large-volume impurities in the sewage are blocked on the left side of the fan blade, so as to avoid direct contact between the impurities and the fan blade, which affects the rotation of the fan blade, and at the same time, the cleaning mechanism is cooperated to clean the blocking net, so as to prevent the impurities from clogging the blocking net and affecting the normal suction process of the water pump.

This invention provides a thrombus aspiration catheter, belonging to the field of medical devices. It includes a catheter base and a catheter body. The catheter base contains a winding device. The catheter body, from the inside out, consists of an inner polymer tube, a middle support tube, and an outer polymer tube. 0-4 core wires are evenly distributed circumferentially inside the catheter body. One end of each core wire is fixedly connected to the winding device, and the other end is fixed to the distal end of the catheter body. The distal end of the outer polymer tube has a circumferentially expandable and contractible protrusion. This protrusion consists of a proximal protrusion, a middle protrusion, and a distal protrusion, connected sequentially from proximal to distal. Elastic spiral winding wires are disposed inside the proximal and distal protrusions. This invention allows for free and flexible adjustment of the catheter's advance angle by using core wires, and the protrusion reduces backflow, allowing the catheter body to still move even when the proximal end is blocked, thus reducing operational difficulty and improving aspiration efficiency.

The utility model relates to the technical field of kitchen appliances, in particular to an integrated cooker head and an integrated cooker. The integrated cooker head in the integrated cooker comprises a head main body and a smoke guide structure, the head main body is arranged on the integrated cooker main body, a smoke collecting cavity is formed in the head main body, a smoke guide opening communicated with the smoke collecting cavity is formed in the head main body, and the smoke guide structure and the head main body are detachably installed in the vertical direction. The smoke guiding structure comprises a smoke guiding main plate and an inner covering plate which are fixed, the smoke guiding main plate is configured to guide oil smoke into the smoke guiding opening, the inner covering plate is provided with a first bending structure, a second bending structure and a third bending structure, the machine head body is provided with a hanging fixing piece and a butt-joint plate base, the first bending structure is fixed to the hanging fixing piece in a hanging mode, and the second bending structure is fixed to the butt-joint plate base in a hanging mode. The second bending structure is fixed to the butt-joint plate seat in a hanging mode, the third bending structure extends out of the smoke guiding main plate and is fixed to the integrated cooker body in an abutting mode, stable and accurate detachable fixing of the smoke guiding structure, the machine head body and the integrated cooker body can be achieved, and disassembly and assembly are convenient.

The invention belongs to the technical field of household appliances, and discloses a middle island type range hood. The island type range hood comprises a main box mechanism, an exhaust fume collecting hood and a lifting mechanism, the exhaust fume collecting hood is located below the main box mechanism and communicated with the main box mechanism, the lifting mechanism is connected with the main box mechanism and the exhaust fume collecting hood, and the lifting mechanism is used for driving the exhaust fume collecting hood to ascend and descend; the exhaust fume collecting hood comprises a hood body, a turning plate driving assembly and two turning plates, and a fume inlet is formed in the bottom surface of the hood body; the two opposite sides, in the first horizontal direction, of the cover body are rotationally connected with the turning plates. The turning plate driving assembly is connected with the turning plate, and the turning plate driving assembly is used for driving the turning plate to rotate, so that the turning plate can be switched between a first position for shielding the smoke inlet and a second position for turning towards the outer side of the cover body to open the smoke inlet. According to the island type range hood, a smoke gathering area can be defined by arranging the turning plates, oil smoke escape is reduced, and the smoke exhaust effect is improved.

The utility model discloses a surface cleaning device capable of lying flat for cleaning, which belongs to the technical field of cleaning equipment and comprises a machine body, a ground brush and a liquid supply component, the machine body is provided with a fan and a sewage bucket, the ground brush is provided with a sewage suction port, the sewage bucket is provided with a sewage inlet pipe, the sewage bucket has an inclined state and a lying flat state along with the machine body, and the machine body is flat and comprises a front shell and a rear shell. A first mounting cavity with an opening in the front side is formed in the lower portion of the front shell, the sewage bucket is arranged at the first mounting cavity, the sewage inlet pipe is arranged close to the front wall of the sewage bucket, the front wall of the sewage bucket is flush with the front surface of the front shell and forms part of the front surface of the machine body, and the front surface of the machine body is not higher than the upper surface of the floor brush when the machine body is in a flat state. The matching relation between the sewage pail and the machine body is reasonably set, so that the front surface of the machine body is kept flat when the sewage pail is installed, the front surface of the sewage pail is prevented from protruding out of the front surface of the machine body, and the flat machine body can drive the floor brush to smoothly enter a low space for effective cleaning when being in a flat state.