87results about How to "Easy assembly and maintenance" patented technology

The invention discloses an automatic replacement platform for probes. The automatic replacement platform comprises a platform body, a base, a probe storage mechanism, a probe transfer mechanism, a probe docking mechanism and a control part, a probe connector is arranged on the platform body, the base is fixedly installed in a working area of the platform body, and the base and the platform body are connected through a supporting body. The probe storage mechanism comprises a probe frame, a connecting plate and a rotating shaft. The probe frame is provided with a plurality of probe storage positions distributed along the circumference, and the adjacent included angle is smaller than 90 degrees. A horizontal moving assembly of the probe transfer mechanism drives a fixed plate to reciprocate in the horizontal direction, and a rotating assembly drives a probe frame to rotate around a vertical shaft; the probe butt joint mechanism drives a probe joint to move in the vertical direction through a lifting mechanism, and accurate butt joint and separation of probes are achieved. And the control part coordinates the actions of all the parts to realize automatic replacement of the probe. According to the invention, automatic operation of probe replacement is realized, the replacement efficiency and the measurement precision are improved, and the device is suitable for high-frequency measurement scenes and applications of various probe specifications.

The invention discloses an aero-engine flexible spline coupling with an elastic clamping tongue, and belongs to the technical field of aero-engines. The coupler comprises a fan shaft, a low-pressure turbine shaft, a centering compensation part, a locking part and an elastic clamping tongue, the fan shaft is a hollow shaft, an annular boss is integrally formed in the fan shaft, one end of the low-pressure turbine shaft is inserted into the fan shaft, is in sliding connection with the annular boss and is in transmission connection with the fan shaft, and the other end of the low-pressure turbine shaft is in transmission connection with the locking part. The centering compensation part is located in a radial gap between the fan shaft and the low-pressure turbine shaft, the locking part is arranged on the low-pressure turbine shaft in a sleeving mode, the centering compensation part and the annular boss jointly conduct axial limiting on the centering compensation part, and the elastic clamping tongue is located in a radial gap between the locking part and the low-pressure turbine shaft and conducts rotation stopping on the locking part and the low-pressure turbine shaft. The elastic clamping tongue can bear larger shearing force, and locking of the locking piece is more reliable and effective. And the centering compensation piece is not easy to wear and long in service life. The whole assembling process of the coupler is simple.

The invention discloses a planting and soil covering device for a plant seedling planting groove. The planting and soil covering device mainly comprises a lifting module, a seedling planting module and a soil covering module. The lifting module comprises a lead screw module, a planting and soil covering mechanism mounting plate, a servo motor, a synchronous belt, a synchronous wheel and the like; the seedling planting module comprises a duckbilled planting device, a plurality of groups of duckbilled opening and closing long rods, an opening and closing long rod mounting plate, a planting mechanism L mounting plate, a mounting plate, a duckbilled mounting plate fixing block, a telescopic cylinder, a linear guide rail mounting block, a linear guide rail, a duckbilled opening and closing pull rod, a duckbilled opening and closing special-shaped connecting block, a duckbilled planting device mounting frame, a single-side duckbilled planting device and the like; the soil covering module comprises a soil covering plate opening and closing mechanism, a soil covering plate, a telescopic cylinder, a polished shaft, an upper mounting plate, a vertical mounting plate, a linear bearing, a polished shaft seat mounting block, a lower mounting plate, a soil covering plate mounting block, a connecting rod, a linear guide rail, a middle mounting plate, a polished shaft seat, a cylinder mounting block and the like. The invention designs the planting and soil covering device suitable for the planting mode of the plant seedling planting groove, the action is simple and reliable, and the two actions of planting and soil covering can be completed through one-time lifting action. In addition, according to the seedling planting and soil covering method adopted by the invention, all actions are clear in movement rule, and the operation reliability of the device is further improved.

The utility model discloses a radar antenna heating device, which relates to the technical field of radar antennas and comprises a hollow hemispherical protective cover and a hollow bearing circular ring fixed on the plane of the protective cover, and further comprises a driving unit and a heating unit which are arranged on the bearing circular ring, the driving unit comprises a positioning circular ring, an annular gear, a rotating shaft, a gear disc and a driving motor, an annular groove is formed in the inner bottom surface of the bearing circular ring, and the positioning circular ring is movably arranged on the annular groove; each heating unit comprises a supporting frame, a positioning bolt, an arc-shaped heating strip and a semi-annular heating block. According to the utility model, the positioning ring fixedly arranged on the bottom surface of the annular gear can rotate on the annular groove in a manner of being matched with the annular gear for reciprocating rotation, the heating unit can be in reciprocating contact with all curved surface areas of the hollow hemispherical protective cover along with rotation of the annular gear, and accumulated snow covering the protective cover can be fully heated and melted; and the equipment heating effect is sufficient and wide in range.

The utility model provides an auxiliary frame body for silicon nitride combined silicon carbide brick siliconizing sol. The auxiliary frame body is provided with an upper cover plate and a lower cover plate, the upper cover plate and the lower cover plate are connected through balance columns at four corners; the upper end and the lower end of each balance column penetrate through the upper cover plate and the lower cover plate respectively. A space for placing brick products is formed between the upper cover plate and the lower cover plate; a plurality of rows of infiltration slotted holes are formed in the lower cover plate; the brick products placed on the lower cover plate and the infiltration groove holes are arranged in a crossed manner; the upper cover plate is provided with a hoisting hole for conveniently transferring the auxiliary frame body into the vacuum pit foundation equipment; a plurality of supporting ribs for supporting the auxiliary frame body are arranged on the bottom surface of the lower cover plate; the height of the supporting rib is larger than the length of the balance column penetrating out of the lower cover plate. After the device is used, the efficiency of siliconizing sol is effectively improved, the problem that products are collided and damaged in the carrying process is solved, assembly and maintenance are convenient and fast, and remarkable economic benefits are achieved.

This utility model relates to the field of building decoration materials technology, specifically to a crack-resistant splicing structure for lightweight partition boards. The crack-resistant splicing structure for lightweight partition boards provided by this utility model includes a first wall panel and a second wall panel. The upper end of the splicing end face of the first wall panel is provided with a protruding male tenon, and the upper end of the splicing end face of the second wall panel is provided with a grooved female tenon matching the male tenon. Simultaneously, the lower end of the splicing end face of the first wall panel is provided with the same female tenon as the second wall panel, and the lower end of the splicing end face of the second wall panel is provided with the same male tenon as the first wall panel. The front end of the male tenon is slidably connected to an insert tenon via a guide groove, and the lower inner side of the female tenon is provided with a positioning groove matching the shape of the insert tenon. An elastic crack-resistant layer is embedded on both sides of the male tenon, protruding 0.5-2mm from the surface of the male tenon. The female tenon is located above the positioning groove and has a limiting insertion hole matching the positioning groove, through which a positioning pin is inserted.

The utility model discloses a heat exchanger in an air pressure brake circuit, and aims to provide a heat exchanger in an air pressure brake circuit, which is convenient to install, reduces the temperature of compressed air in a dryer, improves the ventilation and exhaust air volume, and saves energy consumption. The vehicle-mounted air conditioning system comprises an in-vehicle air guide cavity, an out-vehicle air guide cavity and an air compressor, a heat exchanger is arranged between the in-vehicle air guide cavity and the out-vehicle air guide cavity, and the heat exchanger comprises a plurality of air pipes which are transversely arranged and a plurality of heat dissipation plates which are longitudinally arranged. The heat exchanger further comprises cooling fans corresponding to the multiple cooling plates, an air inlet and an air outlet, the air inlet and the air outlet are connected with the two ends of the multiple air pipes, airflow among the multiple cooling plates communicates with the in-vehicle air guide cavity and the out-vehicle air guide cavity, and the output end of the air compressor is connected with the air inlet through a copper pipe A; the air outlet is connected with the input end of an external dryer through a copper pipe B; the utility model is applied to the technical field of vehicle air braking.

The utility model discloses a cup falling device. The utility model discloses the technical scheme: including the cabin that is used for placing cup and the base of cabin plug -in connection, the dial wheel includes low -lying sector blade and high -lying sector blade of different height, still is provided with reset dial rod subassembly, and dial rod is along dial rod groove sliding, and two dial wheels are driven along fixed axle center rotation respectively through sliding axle, and high -lying sector blade will the flanging of upper layer cup be lifted up along with the rotation of dial wheel, and low -lying sector blade is separated from the flanging of lower layer cup, and lower layer cup falls into the cup falling hole below, and when reset spring resets dial rod, two dial wheels are driven along fixed axle center reverse rotation respectively through sliding axle, and high -lying sector blade on dial wheel follows rotation and releases the upper layer paper cup, and low -lying sector blade drags the flanging of paper cup closely. The scheme provided by the utility model can take the cup smoothly on the basis that cup does not deform and the cup body is complete, and the cost is low.

The utility model relates to reaction equipment technical field discloses an organic matter sealed reaction device, including support, the support front side is provided with the reaction tank, the reaction tank outside fixedly connected with the outer sheath, the outer sheath fixedly connected in the support front side, two ports of the outer sheath outside are connected with outside temperature control circulating equipment through pipeline respectively, the motor is fixedly connected with the stirring paddle that the reaction tank top extends to the reaction tank and is fixedly connected, and the motor passes through the cable and is electrically connected with outside main control ware. After sampling is completed, the sealing block closes the liquid inlet hole, cooperates the inert gas that exhaust valve and trachea are passed in, can discharge the residual medium, can avoid raw material waste, at the same time, reduce the impurity that residual medium secondary reaction generates, guarantee next sampling analysis accurate, benefit accurate control reaction, and the fixing frame and fixed block are fixed in the sampling tube through screw, convenient assembly maintenance, can integrally promote device reliability and practicality.

The present invention discloses a laparoscope structure, including a lens, a handle for holding and operation, and a sheath tube for illuminating optical fiber and cable therebetween, the illuminating optical fiber passes through the handle and extends to the sheath tube, the handle includes a core bracket and a shell that cooperates with it to achieve sealed installation, the core bracket includes two arc rods that are installed with the length direction as the axis and cooperate with the shell shape, and mounting parts located at the front and rear ends of the core bracket and cooperate with the shell for sealed installation, and the circuit board in the handle is installed in the space surrounded by the two arc rods. The present invention adopts a structure in which the core structural parts and the shell structural parts are installed separately, and the structural parts are easy to assemble and maintain. The core structural parts are integrated to increase strength and rigidity, and can ensure that the front and rear ends are coaxially installed to ensure the sealing effect.

The present invention provides a solid-state battery multi-chip stacking machine, including a frame, a frame, a single cell pressurization test position, a CCD detection position, a stacking table, a rotating clamp and a stacking cell test position are sequentially arranged along the conveying direction of the single cell, the single cell pressurization test position is provided with a single cell pressurization test mechanism, a defective product unloading manipulator is arranged on one side of the single cell pressurization test mechanism, the CCD detection position is provided with a CCD detection mechanism, a stacking manipulator for transferring the detected single cell to the CCD detection position and for transferring the single cell from the CCD detection position to the stacking table is arranged on one side of the CCD detection mechanism, a gluing mechanism is arranged on one side of the rotating clamp, and a stacking cell test position is provided with a stacking cell test mechanism. The present invention can improve stacking efficiency, realize mass production, reduce production costs, adopt automated production with good consistency, and avoid the quality problem of unstable voltage and electricity.

The utility model discloses a kind of multi-grade adjustment rotary switches, including base, shell cover, rotating handle and contact assembly, rotating handle rotationally arranged between base and shell cover, and drive rod extending along its radial direction is provided;Contact assembly includes the multiple elastic structure's moving contact bridge of the shaft center of rotating handle as center annularly arranged in installation cavity, and multiple static contact pieces are arranged in base and respectively opposite multiple moving contact bridges, multiple moving contact bridges are connected and respectively located on the movement path of drive rod, drive rod respectively drives multiple moving contact bridges and multiple static contact pieces contact in rotating handle rotating process, by the mechanism of the wheel contact formed by drive rod and multiple moving contact bridges, operation pressure is significantly dispersed, avoid single moving contact bridge sustained stress, greatly reduce the mechanical load and fatigue degree of moving contact bridge, reduce the probability of heating, reduce wear and risk of fusion welding, extend mechanical service life.

The utility model discloses a loudspeaker diaphragm supporting structure, which comprises a sound basin, magnetic steel arranged at the bottom of the sound basin, a voice coil and a framework arranged in the cavity of the sound basin, a diaphragm sleeved on the framework, a bracket arranged on the sound basin and used for supporting the diaphragm, a gasket arranged above the diaphragm, and a compression ring arranged above the gasket. The pressing ring is connected with the sound cone through a plurality of bolts, a pressing sheet is arranged at the center above the vibrating diaphragm, the pressing sheet is in threaded connection with the framework, the vibrating diaphragm comprises a vibrating diaphragm main body, a connecting part matched with the framework is arranged below the vibrating diaphragm main body, and a first folding lug is arranged at the edge of the main body; according to the utility model, through multiple mechanical fixation of cooperation of the sound cone bracket and the first folding lug of the vibrating diaphragm, threaded connection of the pressing sheet and the skeleton, and fastening of the pressing ring and the bolt, the risk of easy degumming and sound leakage at part of the sealing edge during long-term use when the sealing edge of the vibrating diaphragm is bonded through a gasket to realize supporting traditionally is avoided, the stability of the vibrating diaphragm and the high efficiency of sound wave conduction are ensured, and the service life of the vibrating diaphragm is prolonged. And the tone quality performance and the service life under high volume are obviously improved.

The utility model relates to the technical field of smelting chemical engineering, in particular to a green silicon carbide smelting furnace bottom isolating device which comprises a smelting furnace, supporting legs, furnace core conductive graphite, an isolating plate, a moving mechanism and a discharging plate. Furnace core conductive graphite is arranged in the top end of the smelting furnace, isolation plates are arranged on the inner walls of the two sides of the top end of the smelting furnace, a moving mechanism is arranged at the bottom end of the interior of the smelting furnace, and the upper side of the top end of the moving mechanism is connected and engaged with the lower side of the bottom end of a discharging plate. Through the device, a plurality of groups of isolation plates can be embedded and fixed with square grooves in the top end of the smelting furnace through protruding blocks at the top ends, subsequent opening and cleaning are facilitated, time is saved, efficiency is improved, a moving mechanism is used for operating the discharging plate so that falling chippings can be integrally moved out through the discharging plate, workers can conveniently and rapidly clean the chippings, assembling and maintaining are convenient, and the practicability is high. The production efficiency is improved, and the product quality of the next furnace is prevented from being influenced.

This utility model relates to the field of mechanical power transmission and control technology, and in particular to a manually switchable power device, including a drive housing device. The drive housing device is characterized by: a transmission rod extending in a left-right direction with a left linkage housing and a right drive housing respectively passing through its two ends; the right drive housing including a right mounting bracket; the right mounting bracket including a motor mounting plate; a geared motor mounted on the motor mounting plate; a motor shaft connected to one end of the geared motor; a right bearing seat connected to one end of the motor shaft; and the other end of the right bearing seat connected to the transmission rod. A handwheel is provided on the transmission rod near the right bearing seat, and a shift fork is provided on one side of the sliding coupling. This utility model's manually switchable power device uses the transmission rod as its core, achieves efficient electric drive through a stable drive housing layout, provides manual backup through the handwheel, and allows for flexible switching modes via the sliding coupling and shift fork, making operation simple.

The application discloses a turnover blowing needle device of a three-dimensional blow molding machine, which comprises a supporting seat, a turnover mechanism and a blowing needle mechanism, the turnover mechanism comprises a turnover seat and a turnover cylinder, the turnover seat is rotatably installed on the supporting seat around a center line extending in the left-right direction, and the turnover cylinder is in transmission connection with the turnover seat to drive the turnover seat to turn around the center line; the blowing needle mechanism comprises a blowing needle for blowing air outward, a pushing assembly and a clamping assembly installed on the turnover seat, the blowing needle has an axis line perpendicular to the center line, the pushing assembly is used for driving the blowing needle to move back and forth along the axis line of the blowing needle relative to the turnover seat, and the clamping assembly comprises a pair of clamping arms oppositely arranged on the left and right sides and configured to be capable of moving towards or away from the turnover seat; the application integrates edge sealing, turnover and air blowing in the same device, improves space utilization, strengthens the linkage between various processes, the device has a simple structure, is convenient to assemble and maintain, shortens the production time of finished products and accelerates the production efficiency.

The utility model provides a transformer substation with a noise reduction function, which comprises two base supports, a plurality of supporting connecting plates arranged between the two base supports in a matched manner, first nylon plates arranged on the supporting connecting plates in a matched manner, second nylon plates arranged at the tops of the two base supports in a matched manner, and a hoisting top cover arranged at the top of the second nylon plates in a matched manner, the box-type transformer substation has the advantages that the box-type transformer substation is suitable for the box-type transformer substation, the good assembling performance of the box-type transformer substation is beneficial to assembling and maintaining, the physical performance generated by matching of the nylon block and the first nylon plate is good, and the box-type transformer substation is not prone to being damaged. The bottom plate is used for improving the supporting stability and has the noise reduction effect, the second nylon plates on the two sides are matched with the polyester fiber sound absorption plate to improve the vibration absorption capacity, the sound transmission rate can be reduced, the noise reduction effect is improved, and the second nylon plates on the two sides are matched with the nylon back plate and the box door to achieve protection of internal components through surrounding.

The utility model relates to a wireless data acquisition terminal, which comprises a data input line assembly, an antenna assembly, a shell and an upper cover assembly arranged at the top of the shell, a battery box assembly and a junction box are arranged in the shell, a wiring circuit board assembly is arranged in the junction box, a communication module is arranged in the upper cover assembly, and a wireless communication module is arranged in the communication module. The wiring circuit board assembly is electrically connected with the communication module; a data input line of the data input line assembly is electrically connected with the wiring circuit board assembly, and an antenna output line of the antenna assembly is electrically connected with the communication module; a mounting seat is fixedly arranged on the shell, and the shell is fixed on one of a wellhead wall and an intelligent water meter through the mounting seat; an antenna fixing plate is arranged on the antenna assembly, and the antenna assembly is fixed to the well mouth wall through the antenna fixing plate. The wireless data acquisition terminal is good in sealing performance, simple in structure and easy to assemble and maintain.

The utility model discloses a 4G communication outdoor standby power lithium battery which is used for providing power support for outdoor communication equipment, the whole lithium battery comprises a box body, a lithium battery module and a BHC module, the box body comprises a heat dissipation front cover, a cylinder body and a rear cover, the lithium battery module is arranged in the cylinder body, and the BHC module is fixed on the heat dissipation front cover through a connecting piece; the lithium battery module realizes charging and discharging management, temperature monitoring and safety protection through the BHC module; a 4G module is arranged on the heat dissipation front cover and used for supporting remote monitoring and remote upgrading, and a user can check information such as the battery state, the electric quantity and the temperature in real time through a mobile terminal and receive an abnormal alarm. The system has the characteristics of compact structure, convenience in installation, remote intelligent management and the like, is suitable for outdoor scenes such as communication base stations and monitoring equipment, and effectively improves the reliability and maintenance efficiency of equipment power supply.

The invention discloses an electrolysis device for ship ballast water treatment, including an electrolysis power source, an electrode group module group composed of a plurality of electrode group modules, and non-concentric variable-diameter water inlets and non-concentric variable-diameter water outlets respectively located at both ends of the electrode group module group; the electrode group modules, the electrode group modules and the non-concentric variable-diameter water inlets, and the electrode group modules and the non-concentric variable-diameter water outlets are all sealed and connected by flanges. The invention adopts a modular design, and the number of electrode group modules can be determined according to the water treatment volume requirements, so that the equipment is easy to standardize, and a fiberglass shell is adopted, which is light in weight and easy to assemble and maintain.

The ship docking auxiliary device comprises a mooring rope seat and a clamping component, the mooring rope seat comprises a bottom plate, a left side plate, a right side plate and a top plate, a mounting cavity with internal threads is formed in the middle of the bottom plate, a mooring rope column is screwed in the mounting cavity, a clamping block is screwed on the mooring rope column, and guide rails are formed in the positions, located on the left side and the right side of the mounting cavity, of the bottom plate; the left side plate and the right side plate are installed on the left side and the right side of the bottom plate respectively, and clamping parts are installed on the left side plate and the right side plate. The mooring rope seat is convenient to assemble and maintain, the mooring rope column is assembled in the mooring rope seat, the mooring rope can be sleeved on the mooring rope column to be fixed and locked in a left-right and up-down mode through the clamping component and the clamping block, the mooring rope is not prone to falling off or sliding, and the mooring rope fixing effect is improved.

The utility model belongs to the technical field of refractory materials, and provides a connecting structure for mounting refractory bricks on an annular metal shell, the connecting structure is provided with screw rods which are distributed on the metal shell in a welding manner, and the screw rods are uniformly distributed in multiple rows up and down along the circumference; a screw cap matched with each screw rod is fixed at a part which is 6mm away from the outer wall surface of the metal shell; a refractory brick is hung on each screw and nut assembly; a self-flowing castable layer is poured between the refractory bricks and the metal shell; the upper and lower adjacent refractory bricks and the left and right adjacent refractory bricks are buckled in a convex-concave manner, and a gap between the upper and lower adjacent refractory bricks and a gap between the left and right adjacent refractory bricks are filled with refractory fiber felts for sealing the gap between the two refractory bricks; and the refractory brick is provided with a circular positioning bulge which is in point contact with the cambered surface of the metal shell. The service life of the refractory bricks installed on the annular metal shell is effectively prolonged.

This utility model discloses an extended inner sleeve for connecting the inner shaft of a printing press, belonging to the field of printing machinery equipment. The technical solution adopted by this utility model is an extended inner sleeve for connecting the inner shaft of a printing press, including a shaft support and a transmission shaft rotatably connected to the shaft support. An installation seam is provided between the shaft support and the outer wall of the transmission shaft to prevent contact and friction between the outer wall of the transmission shaft and the shaft support. A guide sliding support assembly is provided within the installation seam to support the transmission shaft while reducing frictional resistance during its rotation. This utility model isolates the shaft support from direct contact with the transmission shaft through the installation seam and reduces frictional resistance using the guide sliding support assembly, effectively solving the problems of wear, vibration, and high maintenance costs caused by friction in traditional structures. It has the advantages of reducing frictional resistance, reducing component wear, extending service life, reducing maintenance costs, and improving transmission stability.

The utility model relates to the field of electrical elements, and particularly discloses a wiring structure and a switch. The wiring structure and the switch comprise a base, a circuit board installed in the base, a conducting strip installed on the circuit board and a wiring terminal connected with the conducting strip, the conducting strip comprises a plug-in end and a connecting part, the plug-in end is fixedly connected with the lower end of the connecting part, and one end, away from the plug-in end, of the connecting part is fixedly connected with two pins. The circuit board is provided with positioning holes for insertion of the pins. The wiring terminal comprises a wiring cylinder and a fastener, the inner wall of the wiring cylinder is connected with the outer wall of the plugging end, the fastener is in threaded connection with the inner wall of one side of the wiring cylinder, and the fastener is used for fixing an electric wire. Precise connection between the conducting strip and the circuit board can be achieved, the structure installation efficiency is improved, the insertion depth and the contact area of the wire can be increased through the connecting cylinder and the insertion end, and the situations of loosening and poor electrical contact can be effectively prevented.

The invention relates to the technical field of sewage treatment, in particular to sewage treatment equipment convenient to assemble and maintain, the sewage treatment equipment comprises a settling tank, a sludge collecting hopper and an integrated assembly, the settling tank is provided with a settling cavity, the sludge collecting hopper is arranged at the lower part of the settling cavity, and the sludge collecting hopper is provided with a sludge collecting groove; the integrated assembly comprises a skimming pipe group, a sludge return pipe group, a sludge discharge pipe group and a mounting frame; the skimming pipe group, the sludge return pipe group and the sludge discharge pipe group are all connected to the mounting frame; the integrated assembly can be placed into the precipitation cavity, so that the lower end of the mounting frame abuts against the upper end of the sludge collecting hopper, the integrated assembly is used for pressing and fixing the sludge collecting hopper, and after the lower end of the mounting frame abuts against the upper end of the sludge collecting hopper, the sludge inlet end of the sludge return pipe group and the sludge inlet end of the sludge discharge pipe group are inserted into the sludge collecting tank; according to the sewage treatment equipment convenient to assemble and maintain, a skimming pipe group, a sludge return pipe group, a sludge discharge pipe group and a sludge collection hopper do not need to be connected to the cavity wall of the precipitation cavity, and assembly and subsequent maintenance of the sewage treatment equipment are facilitated.

According to the universal adjustable nozzle structure fixed to the shell, the shell comprises a lubricating oil connector, the structure comprises a base, a mounting base and a nozzle, the base comprises a base body and a connecting part, the connecting part is used for being connected with the shell, the base body comprises a hollow cavity, and the hollow cavity is communicated with the lubricating oil connector; the mounting seat is arranged in the hollow cavity in a replaceable manner and comprises an oil guide hole and a plurality of mounting holes, and the oil guide hole is communicated with the hollow cavity; and the nozzles are connected with the mounting holes in a replaceable manner. The universal adjustable nozzle structure can adapt to different cooling scenes and has good universality.

The utility model provides a closestool heater which is characterized in that a converging cavity is arranged between heating pipes in a mounting shell, the converging cavity is provided with a water inlet hole, a water outlet hole, a pressure stabilizing hole and a pressure stabilizing groove, the pressure stabilizing groove and a water diversion groove hole are provided with a water inlet pipe and a water outlet pipe, and a temperature control groove hole and a temperature sensing hole are formed in the mounting shell; a pressure stabilizing valve, a heating wire, a temperature controller and a temperature sensor are respectively arranged in the pressure stabilizing groove, the heating pipe, the temperature control groove hole and the temperature sensing hole, and the upper cover covers the mounting shell and is provided with a water inlet and a water outlet; the end cover is arranged on the end face of the mounting shell. By optimizing the layout of the components, the components are integrated on the mounting shell, rapid sealing mounting is achieved through the upper cover, the end cover and the pressure stabilizing cover, an independent heater is formed, the functional modules do not need to be connected through hoses, a water path is simplified, and the cost is reduced. And the device has the advantages of comprehensive functions, high integration level, compact structure, small size, difficulty in water leakage, convenience in assembly and maintenance, low cost and the like.

The present invention discloses a folding screen with automatic tray lifting, comprising: a support frame, a folding screen assembly with the top suspended on the support frame, a tray located below the folding screen assembly, and a power mechanism driving the tray to lift and move; the folding screen assembly comprises a plurality of screen units arranged from top to bottom, the edges of two adjacent screen units are flexibly connected, the folding screen assembly is gradually stacked on the tray when the tray rises, and the folding screen assembly is gradually unfolded when the tray descends. The present invention arranges a tray below the folding screen assembly, and uses the lifting and lowering movement of the tray to control the distance between the tray and the support frame. When the distance increases, the folding screen assembly automatically unfolds under the action of gravity, and when the distance decreases, the folding screen assembly is stacked on the tray. The power mechanism only needs to drive the tray to move to realize the unfolding or folding of the folding screen assembly, and the structure is simple and reliable, and easy to assemble and maintain.

The lateral-force-resistant tensioning hydraulic cylinder comprises a cylinder barrel, a piston rod and a sealing piece, a cylindrical hole used for installing the piston rod is formed in the center of the cylinder barrel, an oil inlet and outlet hole used for being communicated with the cylindrical hole is formed in the side wall of the cylinder barrel, a groove used for installing the sealing piece is formed in the inner wall of the cylindrical hole, and the width of the groove is larger than that of the sealing piece. The sealing piece is installed in the groove, copper rings are arranged in gaps between the two sides of the sealing piece and the groove in a surfacing mode, the piston rod is installed in the cylindrical hole with the sealing piece and the copper rings in a sliding mode, the copper rings make contact with the piston rod and serve as sliding supports, the cylinder barrel is of a square structure, and the cylinder barrel can bear larger bending moment and lateral force in appearance. In the installation process, the cylinder barrel can be directly pushed into a main engine structural part, an anti-rotation limiting plate does not need to be designed for a main engine, the cylinder barrel is suitable for being used in a narrow installation space, lateral force in the movement process of the rod body can be counteracted through the arrangement of the copper ring, and installation and maintenance are easy.