162results about How to "Guaranteed clearance" patented technology

The invention discloses a battery, a battery pack and a power utilization device, the battery has a first direction and a second direction which are intersected, the battery comprises a shell, an electrode assembly and a top cover assembly, the shell is provided with a containing cavity, the electrode assembly is arranged in the containing cavity, the top cover assembly comprises a top cover piece and a lower insulating part, the top cover piece is connected with the shell and covers the containing cavity, and the lower insulating part is arranged in the containing cavity. The lower insulating part is connected to one side, facing the electrode assembly, of the top cover plate; the lower insulating part comprises a body and a first bulge, and the body is provided with at least two first through holes which are arranged at intervals along a first direction; the first protrusions are connected to the side, away from the top cover piece, of the body and arranged between every two adjacent first through holes. In the second direction, the size of the first protrusion is d, the distance between the body and the electrode assembly is n, and d / n is larger than or equal to 0.3 and smaller than 1; the sealing performance of the battery can be ensured, the deformation of the lower insulating part is effectively inhibited, and the safety performance of the battery is effectively improved.

The invention discloses a ducted fan structure and aims to provide a ducted fan structure beneficial to noise reduction, the ducted fan structure comprises a motor base and an annular outer cover, the motor base is located in the outer cover and located in the center of the bottom of the outer cover, a motor and a plurality of guide vanes are arranged on the motor base, one end of the motor is detachably connected with the motor base, and the other end of the motor is detachably connected with the guide vanes. The other end of the motor is an output end and is provided with a fan, the fan is located in the top of the outer cover and detachably connected with the output end of the motor, the multiple guide blades are evenly distributed in the circumferential direction of the motor base, the motor base is detachably connected with the inner side wall of the outer cover through the guide blades, the outer cover is provided with multiple hanging lugs, and the hanging lugs are fixedly connected with the outer side wall of the outer cover. The plurality of hanging lugs form a rectangular force unloading area corresponding to the motor, the left-right width of the force unloading area is larger than the diameter of the motor, and the up-down height of the force unloading area is larger than the height of the motor. The beneficial effects of the invention are that the motor vibration is reduced, and the purpose of reducing noise is achieved.

The utility model discloses a thin-wall container vertical girth welding device which comprises a base and a welding support, the welding support is fixedly installed on one side of the upper end of the base, a rotating motor is arranged on the other side of the upper end of the base, a rotating installation disc is arranged at the upper end of the rotating motor, and an adjusting welding structure is arranged in the welding support. The utility model relates to the technical field of welding equipment, in particular to an adjustable welding structure, which is characterized in that firstly, two annular containers can be stably mounted through a rotary mounting disc and a hoisting fixing component, a gap of an annular seam position is ensured, and the annular containers are rotated at a constant speed through a motor, so that the annular seam welding operation can be conveniently carried out on the annular containers; and the screw rod is matched with the electric push rod, so that the height and the transverse position of the welding gun can be adjusted, and welding operation of annular containers of different specifications can be met.

The invention relates to the technical field of gas path pipe fittings, in particular to a gas path pipe fitting structure and a batch gallium nitride production system. The gas path pipe fitting structure comprises a main pipe body, a branch pipe, a partition plate, a first sliding piece, a second sliding piece and a driving rod. The branch pipes are communicated with the main pipe body. The branch pipe is divided into a first pipe cavity and a second pipe cavity by the partition plate. The driving rod is in sliding fit with the branch pipe. The first sliding piece is in sliding fit with the second pipe cavity and is in sliding sealing, the driving rod penetrates through the first sliding piece and is in sliding fit with the first sliding piece, and the second sliding piece is fixedly connected to the end of the driving rod. An air outlet is formed in the side wall of the second pipe cavity, and when the first sliding part is attached to the partition plate, the edge of the side, away from the main pipe body, of the air outlet is flush with the surface of the side, close to the main pipe body, of the first sliding part. The driving rod is driven by the first driver and can drive the second sliding piece into the main pipe body. The method can help to determine the health degree of the whole gas path, and is beneficial to improving the feed gas conveying accuracy.

The invention discloses a flour mill for coating additive production, and belongs to the field of raw material roller milling production, the flour mill comprises a shell, a plate body fixedly connected to one side of the shell, a feed inlet formed in the upper end of the shell, two milling rollers rotationally connected to the interior of the shell, and two driving parts fixedly connected to one side of the plate body, and output shafts of the two driving parts are connected with the two milling rollers correspondingly; two scraping units are symmetrically connected to the interior of the shell; accumulations adhered to the outer surface of the grinding roller can be removed through the scraper, when the movable seat and the scraper move in a reciprocating mode, the position of the scraper can be adjusted, long-time scraping of the fixed position is avoided, abrasion of the scraper is balanced, and therefore the service life of the scraper is prolonged; the scraper can clean non-uniform attachments, especially material accumulation, coating residues or other irregular dirt, formed on the surface of the roller body due to process reasons, and the uniformity of cleaning the surface of the roller body is remarkably improved.

The utility model provides a container welding tool which is characterized in that a container is an 8-shaped sleeve body formed by two cylinder bodies, a plurality of 8-shaped profiling circular rings are arranged between two sides of the inner wall surfaces of the two cylinder bodies from bottom to top, a guide pillar is arranged between the inner wall surfaces of the cylinder bodies of the 8-shaped sleeve body, the guide pillars are connected with the adjacent 8-shaped profiling circular rings, and the guide pillars are connected with the 8-shaped profiling circular rings. At least one Y-shaped profiling supporting piece is arranged between every two adjacent 8-shaped profiling circular rings, and the Y-shaped profiling supporting pieces are arranged on the central axis of the 8-shaped sleeve body. According to the container welding tool, the two barrel bodies, the upper flange and the lower flange are accurately positioned and welded, deformation of a container in the welding process is controlled, the manufacturing precision of the container is guaranteed, a final gap between the container and a paddle is guaranteed, and the stirring effect is improved; the tool is convenient to mount and dismount and accurate in positioning, and the working efficiency of assembling and welding the container is improved.

The utility model relates to the technical field of oil tank lock covers, and discloses an oil tank lock cover, an oil tank and an operation machine. The oil tank lock cover comprises a lock cover body, the mounting base is connected with the interior of the lock cover body in a matched mode, and a mounting through hole is formed in the mounting base; the valve nail is movably mounted in the mounting through hole and has an opening state and a sealing state, and in the opening state, a gap is reserved between the valve nail and the mounting through hole, and an air inlet channel is formed between the mounting seat and the lock cover body; in a sealing state, the valve nail blocks the mounting through hole, and an exhaust channel is formed between the mounting base and the lock cover body. The air inlet channel and the exhaust channel are arranged between the mounting seat and the lock cover body, so that the air pressure in the oil tank can be effectively adjusted, and the conditions that the oil tank is shrunken and deformed due to suction and fuel oil leaks are avoided.

The utility model discloses an orthosis for preventing underarm scar contracture of a burn patient, which comprises a neck fixing strip, a shoulder lapping piece is fixedly arranged on the side of the bottom end of the neck fixing strip, one side of each first tensioning strip is rotatably connected with a first movable column, an underarm orthosis mechanism comprises an arc-shaped supporting piece, and the arc-shaped supporting piece is fixedly connected with the shoulder lapping piece. Adjusting long holes are formed in the two sides of the inner wall of the arc-shaped supporting piece correspondingly, and two limiting sliding blocks are slidably connected into each adjusting long hole. The armpit orthopedic mechanism is arranged between the first movable columns connected through the first tensioning strip, the limiting sliding block is connected with the arc-shaped filler strip, and the rubber stud is rotationally connected with the arc-shaped contact net piece, so that the orthopedic device is better in ventilation effect, dryness and ventilation of a burn position are guaranteed, recovery of an affected part is promoted, and it is guaranteed that a gap is formed between the arc-shaped supporting piece and the affected part; meanwhile, the arc-shaped supporting piece and the arc-shaped contact net piece generate pressure on the scar, so that the problem of scar contracture is solved while the ventilation effect is guaranteed.

The utility model discloses a kind of metal composite material walkway plates, comprising: footpath cantilever support, footpath cantilever support is spacedly arranged multiple along the length direction of prefabricated beam, the fixed end of multiple footpath cantilever support is fixedly connected with prefabricated beam;Steel grating frame, steel grating frame is multiple, the length direction of each steel grating frame Two ends are respectively overlapped and fixed on adjacent two footpath cantilever supports;Continuous no-alkali glass fiber felt reinforced polyurethane rigid foam plate, polyurethane rigid foam plate is multiple, and it is flatly fixed on multiple steel grating frames;Guardrail, guardrail is fixed on the cantilever end of footpath cantilever support.The footpath step plate is combined use by steel grating frame and polyurethane rigid foam plate, can greatly improve the durability of footpath step plate, and has the advantages of light weight, high strength.

The present invention relates to the technical field of micro-passage plate assembly processing, and discloses a micro-passage plate bending machine, the technical scheme of which mainly includes a frame body, a placing platform and a flat plate are arranged in the frame body, the flat plate is located above the platform, a power mechanism is arranged on the frame body to drive the flat plate to move up and down, a clamping mechanism for clamping the micro-passage plate assembly on the placing platform is arranged on the placing platform, when the micro-passage plate assembly is bent, the micro-passage plate assembly is first placed on two horizontal plates, and then the micro-passage plate assembly is clamped by the clamping mechanism, and the pre-bending mechanism pre-bends the flat tube by a roller, so that an angle exists between the flat tube and the plumb plane, ensuring that the flat tube can be bent smoothly without breaking, and canceling the setting of the core rod, and through the cooperation between the power mechanism and the rotating mechanism, the two horizontal plates are rotated to complete the bending of the micro-passage plate assembly, ensuring that there is a gap between each two adjacent flat tubes after bending.

The utility model relates to the technical field of drilling machines, and one embodiment of the utility model provides a drilling machine for rigging production, which comprises a drilling machine body, a cross-shaped sliding table, a support frame, a support block, a clamping plate, a clamping mechanism and a relative movement mechanism, the drilling machine body is provided with a working table, and the cross-shaped sliding table is arranged on the working table; a U-shaped supporting frame is fixedly arranged at the output end of the cross-shaped sliding table, supporting through grooves are formed in the two opposite inner walls of the supporting frame, the supporting blocks are arranged in the supporting through grooves in a sliding mode, clamping through grooves are formed in the close side walls of the supporting blocks, clamping grooves are formed in the bottoms of the clamping through grooves, and the clamping plates are arranged in the clamping grooves in a sliding mode. The clamping mechanism is arranged on the supporting block and used for driving the clamping plate to adjust the position, and through the technical scheme, the technical problem that in the prior art, abrasion is likely to happen between a drill bit and a workbench in the rigging drilling process of a drilling machine is solved.

The utility model belongs to the technical field of furniture, and relates to telescopic hardware which comprises a base, a guide rail and a sliding rail, a hinge seat is arranged at one end of the guide rail, and the hinge seat is hinged to the base through a hinge shaft. A torsion spring for driving the guide rail to rotate towards the base and a limiting structure for limiting the rotating angle of the hinge seat are arranged between the hinge seat and the base, the sliding rail slides in the guide rail and extends out of the other end of the guide rail, a tension spring for driving the sliding rail to retract inwards is arranged between the sliding rail and the guide rail, and a connecting plate is fixed to the outer end of the sliding rail. The utility model further relates to an expansion type round table comprising the telescopic hardware, the expansion type round table comprises a round main table plate and a plurality of fan-shaped expansion plates, the base of the telescopic hardware is fixed at the bottom of the round main table plate, the connecting plates are fixed at the bottoms of the fan-shaped expansion plates, and the sliding rail and the guide rail are obliquely arranged upwards from inside to outside. The telescopic hardware and the expansion type round table have the advantages of being simple in structure, low in manufacturing cost and convenient to use.

The invention provides a preparation method of a solid electrolyte membrane. The preparation method of the solid electrolyte membrane comprises the following steps: crushing and screening electrolyte raw materials to obtain electrolyte particles; dissolving the electrolyte particles into a solvent, and uniformly mixing to obtain electrolyte slurry; carrying out refining treatment on the electrolyte slurry to obtain refined powder; and carrying out rolling treatment on the refined powder to obtain the solid electrolyte membrane. According to the preparation method of the solid electrolyte membrane, the preparation process is simplified, the production cost is reduced, and the production efficiency is improved. The electrolyte slurry is refined by optimizing the process conditions for preparing the electrolyte powder, so that the ionic conduction performance and the stability of the electrolyte membrane are ensured; and meanwhile, the preparation process is green and environment-friendly and has huge industrial application potential.

The utility model discloses a motor structure capable of increasing magnetic attraction, relates to the technical field of motor structures, and aims to solve the problems that abrasion is generated, foreign matters are generated by abrasion, abnormal sound is increased by the foreign matters, and the service life of a motor is shortened. A magnetic strip is arranged in the outer rotor; an iron ring is arranged on the inner side of the bottom of the bracket; a front O-shaped oil ring is arranged at one end of the oil-retaining bearing, the front O-shaped oil ring sleeves the peripheral side of the shaft core; a rear O-shaped oil ring is arranged at the other end of the oil-retaining bearing; according to the utility model, the arranged iron ring can attract the magnetic strip, so that a certain gap can be ensured to exist between the snap spring and the rear O-shaped oil ring, the structural state of the motor during working can be optimal, and the effects of reducing noise and prolonging the service life can be achieved.

The present invention discloses a rear shell assembly of a floor-standing air conditioner, a floor-standing air conditioner indoor unit and an air conditioner, wherein the rear shell assembly of the floor-standing air conditioner includes a shell, an air inlet grille and a filter assembly, and an air inlet is provided on the shell; the air inlet grille is installed at the air inlet of the shell, and a socket is formed between the periphery of the air inlet grille and the shell; the filter assembly includes a filter handle and a filter connected to the filter handle, and the filter assembly is plugged into the shell through the socket so that the filter corresponds to the air inlet grille. The filter handle is installed in the socket, and one side is fixed to the periphery of the air inlet grille, and the other side is fixed to the shell. The rear shell assembly of the floor-standing air conditioner of the present invention reduces the deformation of the air inlet grille through the correction of the filter handle, thereby reducing the gap between the air inlet grille and the filter handle, and greatly reduces the cost and improves the installation efficiency.

The utility model belongs to the technical field of PCBs, and particularly relates to an integrated energy storage heat dissipation PCB which comprises a first substrate, a second substrate is adhered to the bottom of the first substrate, a plurality of mounting grooves are formed in the sides, close to each other, of the first substrate and the second substrate, mounting holes are formed in the inner walls of the mounting grooves in the top of the second substrate, and the mounting holes are communicated with the mounting grooves. Second heat dissipation plates are fixedly connected to the inner walls of the multiple mounting holes, third heat dissipation plates are fixedly connected to the bottoms of the multiple second heat dissipation plates, heat conduction pipes are fixedly connected to the tops of the multiple second heat dissipation plates, and the heat conduction pipes are fixedly connected with the inner walls of the mounting grooves in the first substrate and the second substrate. The plurality of heat conduction pipes are mounted between the first substrate and the second substrate, and the second heat dissipation plate and the third heat dissipation plate are mounted on the outer walls of the plurality of heat conduction pipes, so that heat in the PCB can be conveyed to the third heat dissipation plate through the heat conduction pipes and the second heat dissipation plate, and the heat dissipation effect of the PCB is improved through rapid heat dissipation of the third heat dissipation plate.

The present invention relates to the technical field of tooling for electric power equipment, and discloses a tooling for fixing connectors in an electric energy meter box, comprising an electric energy meter box, wherein the front side of the electric energy meter box is rotatably connected to a box door via a hinge, and the inner wall of the electric energy meter box is provided with a supporting mechanism, wherein the supporting mechanism comprises a first connecting frame fixedly connected to the electric energy meter box, the inner wall of the first connecting frame is fixedly connected to a first mounting rod, the outer wall of the first mounting rod is provided with a first sliding groove, and the inner wall of the first mounting rod is provided with a first through hole. When the electric energy meter needs to be installed inside the electric energy meter box, the mounting hole behind the electric energy meter is positioned by an adjusting device, and after the electric energy meter is positioned and installed, the fixed shaft is pushed by a force plate, so that the fixed shaft is inserted into the corresponding first through hole, thereby preventing the sliding frame from sliding, thereby avoiding abnormal movement of the electric energy meter, thereby affecting the normal operation of the electric energy meter.

The invention discloses a heating mold and application of a hot forming process thereof.The mold comprises a workbench, a water cooling plate, a lower mold assembly and an upper mold assembly, the workbench is arranged on a machining equipment platform, the lower mold assembly is arranged on the machining equipment platform, and the upper mold assembly is arranged on the lower mold assembly; the water cooling plate is arranged on the upper die assembly, and the top of the water cooling plate is connected with a machining equipment sliding block. The die is suitable for common press equipment, complex transformation and addition of a water cooling system are not needed, the common press equipment and the hot forming die are isolated, and the equipment is prevented from being damaged by high temperature. The mold adopts the mica plate for heat preservation and heat insulation, rapid loss of temperature is avoided, the temperature stability of the mold can be guaranteed, and then the machining effect is guaranteed. Temperature field finite element analysis can be carried out according to ANSYS, repeated iteration adjustment is carried out, the temperature of a temperature control area is determined, and it is guaranteed that the temperature of all molded surfaces meets the process requirement.

A supporting shaft thread is arranged on the circumferential face of the left end of a supporting shaft, a supporting shaft locking notch is formed in the upper portion of the left end face of the supporting shaft, and an inner hole thread of a gear ring supporting disc and the supporting shaft thread are installed at the left end of the supporting shaft in a thread fit mode. The right end face of the gear ring supporting disc is attached to the left bearing. The locking gasket is fixed to the gear ring supporting disc through the upper screw and the lower screw, it is ensured that the locking gasket is clamped into the supporting shaft locking notch so that the effect of preventing the threads from loosening can be achieved, and a wheel edge bearing pre-tightening structure matched with the threads is formed. The hub reduction gear assembly is simple and compact in structure, convenient and efficient to assemble, low in manufacturing and maintenance cost and reliable in operation, and solves the problem that the manufacturing and maintenance cost of a drive axle is increased due to tedious assembly and material management when an adjusting gasket is adopted to control the bearing clearance of the hub reduction gear assembly in the prior art.

The utility model discloses a screw compressor rotor seat and female and male rotor assembly tool which comprises an installation frame, a rotor seat fixing plate is fixedly installed at the position, close to the top end of the installation frame, of the installation frame, a plurality of installation holes used for installing a rotor seat are formed in the rotor seat fixing plate, and a cushion block is placed on the top of the bottom end of the installation frame. And a hydraulic rod for jacking the female rotor and the male rotor into the rotor seat is arranged at the top of the cushion block. According to the utility model, the installation rack is arranged to facilitate stable placement, so that the installation of the rotor seat is separated from the ground, and the rotor seat is installed on the installation hole of the rotor seat fixing plate, so that the displacement of the rotor seat in the installation process can be avoided, and the female rotor and the male rotor are respectively ejected into the rotor seat by adopting the hydraulic rod; therefore, the gap between the female rotor and the male rotor can be ensured, and the working effect of the compressor is ensured.

The present invention discloses a pot cover assembly and a floating pressure cooker. The pot cover assembly includes a pot cover body and an elastic beam. The elastic beam is arranged on the back of the pot cover body. The elastic beam includes a fixing portion connected to the pot cover body and a deforming portion extending toward the edge of the pot cover body. The end of the deforming portion away from the fixing portion forms a supporting end, and the supporting end is used to be fixed on the pot body through a locking component. The deforming portion can be elastically deformed when subjected to a set external force, and a spacing is provided between the deforming portion and the pot cover body. The floating pressure cooker includes a pot body and a pot cover assembly, and also includes a locking mechanism for locking the pot body and the pot cover assembly. The present invention can make the pot cover float more smoothly under the action of the air pressure in the pot body, and ensure sufficient floating space, so that the high pressure in the pot body is released more smoothly.

The utility model relates to a double-hearth lime kiln with a combined loading area kiln hearth structure, which comprises a lower hearth, a loading area furnace shell is fixed at the top end of the lower hearth, a plurality of groups of fixed steel sheets are arranged on the inner surface of the loading area furnace shell, and the inner surface of the loading area furnace shell is filled with refractory materials. A wear-resisting steel plate is fixed to the end, away from the furnace shell, of the fixed steel sheet, a feeding port area is fixed to the top end of the furnace shell, a feeding port is formed in the top end of the feeding port area, and an anchoring part is welded to the inner wall of the furnace shell in the feeding port area and smeared with smearing materials. According to the double-hearth lime kiln with the combined loading area kiln hearth structure, the temperature of the loading area is not very high, so that the wear-resistant steel plate can bear impact and friction of limestone and can also bear the temperature of the loading area; the refractory material filled in the gap plays a role in heat insulation and can ensure that the furnace shell is not deformed due to heat, the fixed steel sheet plays a role in fixing the wear-resistant steel plate, and meanwhile, the gap between the wear-resistant steel plate and the furnace shell is ensured.

The invention belongs to the technical field of rear tail door installation, and discloses a rear tail door installation adjusting method and tool. The method comprises the following steps that S1, a rear tail door hinge is installed on a rear tail door; s2, the rear tail door adjusting assistive device is installed on the vehicle body, and a Z-direction adjusting piece on the rear tail door adjusting assistive device is adjusted to the specified height; s3, the rear tail door is connected with the automobile body through a rear tail door hinge, and the gap and the segment difference between the rear tail door and the side wall of the automobile body are adjusted under supporting of the Z-direction adjusting piece; and S4, locking the rear tail door hinge. The tool comprises a rear tail door hinge mounting clamp and a rear tail door adjusting auxiliary tool, wherein the rear tail door hinge mounting clamp can break the form and location tolerance of a rear tail door hinge and the form and location tolerance of the outer contour of the rear tail door; the rear tail door adjusting assistive device can support the rear tail door and is used for adjusting the position of the rear tail door in the X direction, the Y direction and the Z direction under the whole vehicle coordinate system. The quality of the whole vehicle can be improved, the adjusting difficulty can be effectively reduced, the working time is shortened, and the cost is reduced.

The utility model provides a headlamp mounting assembly and a vehicle, and relates to the technical field of vehicle parts, the headlamp mounting assembly comprises a headlamp, a front end module, an upper longitudinal beam and a fender; in the vertical direction of the automobile body, the front end module and the upper longitudinal beam support a first connecting part and a second connecting part of the headlamp respectively, and the fender and the front end module support a third connecting part and a fourth connecting part of the headlamp respectively. The orthographic projection of the gravity center of the headlamp on the plane perpendicular to the vertical direction is located in an area defined by the orthographic projection of the first connecting part, the orthographic projection of the second connecting part, the orthographic projection of the third connecting part and the orthographic projection of the fourth connecting part on the plane perpendicular to the vertical direction. In this way, the headlamp can be prevented from inclining forwards and sinking under the action of gravity, it is guaranteed that the gap between the headlamp and the peripheral part meets the DTS matching requirement, and then the assembly precision of the headlamp is improved.

The present application provides a dual dielectric barrier discharge pollutant degradation device, comprising: a first dielectric plate, the first dielectric plate is tilted, the first dielectric plate is provided with a first water-facing surface; a first groove, the first groove is arranged at intervals on the first water-facing surface; a second dielectric plate, the second dielectric plate is provided with a second water-facing surface, the second water-facing surface and the first water-facing surface are enclosed to form a closed processing space; a second groove, the second groove is arranged at intervals on the second water-facing surface, the first groove on the first water-facing surface and the second groove on the second water-facing surface are staggered; a first electrode, the first electrode is grounded, the first electrode is arranged on the side of the first dielectric plate away from the first water-facing surface; a second electrode, the second electrode is electrically connected to a power supply, and the second electrode is arranged on the side of the second dielectric plate away from the second water-facing surface. The present invention helps to treat wastewater and waste gas more efficiently and environmentally friendly, reduce environmental pollution, and promote sustainable development.

The invention relates to fertilizer processing, in particular to a microbial fertilizer processing technology which comprises the following steps: step 1, putting a fertilizer needing to be fermented into a fermentation cavity; 2, the fertilizer is fluctuated through a stirring mechanism; 3, gaps are formed among the fertilizers; the fermentation cavity is fixedly connected to the device support, a breathable bottom plate is fixedly connected in the device support, and a plurality of conical holes are formed in the breathable bottom plate; the number of the shifting mechanisms is two, and the two shifting mechanisms can be inserted into the fermentation cavity from the two sides of the fermentation cavity; the microbial fertilizer needing to be fermented can be subjected to fluffy treatment, gaps between the fertilizers are guaranteed, and the fermentation process is better completed.

The invention belongs to the technical field of automobile fenders, and relates to an auxiliary device for installing an automobile fender. An upper positioning block (1) and an upper flat absorbing block (9) are arranged on the upper portion of a device body (8), a lower flat absorbing block (10) is arranged on the lower portion of the device body (8), a lower positioning block (5) is arranged on the inner side of the device body (8), and a protruding lower positioning section (11) is arranged on the lower positioning block (5). According to the auxiliary device for installing the automobile fender, the structure is simple, gaps can be accurately controlled when the fender is installed, meanwhile, damage to the surface and the structure of a whole automobile and accessories of the whole automobile is avoided, the requirement can be met through one-time installation and adjustment, the installation efficiency is improved, and the auxiliary device adapts to the rhythm of a production line.

The utility model relates to the technical field of rolling mill equipment, in particular to a hydraulic balancing device for a working roll, which is characterized in that the top of a lower bearing box is provided with cylindrical grooves positioned on two sides of a lower working roll, the upper parts of the cylindrical grooves are provided with steps, and the top of the lower bearing box is provided with a clamping key groove I communicated with the cylindrical grooves; a balance hydraulic cylinder is inserted in the cylindrical groove and comprises a cylinder barrel, a piston rod and a first guide sleeve, the piston rod is arranged in the cylinder barrel in a sleeved mode, the upper end of the piston rod abuts against the bottom of the upper bearing box, and the first guide sleeve is fixedly arranged on the inner side wall of the cylinder barrel. A fixing block is fixedly arranged on the outer side wall of the upper end of the cylinder barrel, a second clamping key groove corresponding to the first clamping key groove is formed in the fixing block, and a clamping key is inserted into the first clamping key groove and the second clamping key groove. The gap between the upper working roll and the lower working roll can be kept, and the cylinder barrel of the hydraulic cylinder can be effectively prevented from rotating, so that a hydraulic pipeline is prevented from being twisted and bent.

The invention relates to the technical field of waste gas purification, in particular to an industrial waste gas washing spray tower which comprises a tower body, a circulating water tank, a water spray pipe, a gas pipe, a fan and a discharge pipe, a gas inlet is formed in the left side of the tower body, the industrial waste gas washing spray tower further comprises a base frame, a shaft rod, fan blades, a stripping assembly, a baffle, a filter membrane, an adjusting assembly and a scraper, and the base frame is connected to the inner wall of the tower body; the shaft rod is installed on the base frame, the fan blade array is connected to the outer surface of the shaft rod, the stripping assembly is connected to the outer side of the base frame, the baffle is connected to the lower end of the stripping assembly, the lower end of the filter membrane is connected with the periphery of the upper inclined face of the baffle, the adjusting assembly is connected to the lower side of the shaft rod, and the scraper is connected with the adjusting assembly. The sediment is generated on an elastic plane, and the sediment is separated from the plane by tightening the plane, so that the accumulation of the sediment is reduced, and the purpose of good sediment separation effect is achieved.