195results about How to "Guaranteed contact area" patented technology

The invention relates to the technical field of waste biological treatment, in particular to an automatic running membrane type composting device which comprises a composting tank, a pushing frame, a stirring mechanism, a discharging mechanism, an aeration system and a composting membrane, a feeding mechanism is arranged on the left side of the composting tank, the pushing frame is arranged in the composting tank, and a plurality of bottom transverse frames in the front-back direction are arranged on the inner side of the lower portion of the pushing frame at intervals in the left-right direction; the front portion and the rear portion of the material pushing frame are each provided with a plurality of side stand frames in the vertical direction at intervals in the left-right direction. The structure is reasonable and compact, the bottom transverse frame, the side vertical frames, the middle connecting cross beam and the section are all triangular, the rightward pushing force generated to materials is large, the friction force between the materials and the bottom of the composting groove and the side wall of the composting groove and the resistance of the right side groove wall of the composting groove and a stirring mechanism to the materials are effectively overcome, and the materials are integrally pushed; the retention time of the material in the composting tank is convenient to control, the composting quality is ensured, and the effective volume of the material in the composting tank is ensured.

The invention discloses a steam recovery device for a cooling tower, and relates to the technical field of steam recovery, a spherical bottom cover and a spherical top cover are fixedly connected to the ends, away from a supporting frame, of a steam inlet pipe and a sewer pipe correspondingly, and rolling grooves are formed in the opposite faces of the spherical bottom cover and the spherical top cover correspondingly; an upper annular piece and a lower annular piece are rotationally connected into the rolling grooves of the spherical bottom cover and the spherical top cover correspondingly, the upper annular piece and the lower annular piece can rotate relatively, and condensation pipes are fixedly connected into the upper annular piece and the lower annular piece correspondingly. And a driving mechanism capable of driving the upper annular piece and the lower annular piece to rotate in the horizontal direction and swing in the vertical direction is arranged on the steam inlet pipe. Through the arrangement of the driving mechanism, the inclination angle of the two rows of condensation pipes can be adjusted in real time, so that small water drops condensed on the condensation pipes are gathered into large water drops, the dripping speed is increased, meanwhile, the contact area of the condensation pipes and steam can be guaranteed, and the condensation and collection efficiency of the steam is higher.

The utility model discloses a waste gas treatment purification device for coal chemical industry, which comprises an acid liquor purification seat and an alkali liquor purification seat, the acid liquor purification seat is communicated with the alkali liquor purification seat through a gas guide pipe, and the inner side of the acid liquor purification seat and the inner side of the alkali liquor purification seat are respectively provided with a gas distribution seat. A gas inlet pipe is fixedly connected to the input end of the top side of the gas distribution seat on the inner side of the acid liquid purification seat, and the gas distribution seat is a hollow frame seat; according to the waste gas treatment and purification device for the coal chemical industry, through the arrangement of an acid liquid purification seat and an alkali liquid purification seat, waste gas can be sequentially conveyed into gas distribution seats on the inner sides of the acid liquid purification seat and the alkali liquid purification seat through a gas inlet pipe, the contact area of the waste gas and acid and alkali liquid can be guaranteed through cooperation of a top plate and a gas distribution pipe, and the purification and adsorption effect is guaranteed; meanwhile, due to the arrangement of the two activated carbon adsorption net groups, liquid molecules in gas in contact with acid and alkali liquid can be absorbed, the purification effect is ensured, and the problem that an existing device is difficult to continuously perform acid and alkali liquid purification treatment on waste gas is solved.

The invention belongs to the technical field of electrochemical engineering, and relates to a three-dimensional electrochemical reactor which comprises a reactor shell assembly, three-dimensional electrode modules, counter electrode modules, diaphragms or polymer partition plates and an external power supply, the counter electrode modules are arranged in pairs, and the three-dimensional electrode modules are clamped between the counter electrode modules arranged in pairs; the diaphragm or the polymer partition plate is clamped between the electrode surface of the counter electrode module and the electrode surface of the three-dimensional electrode module, and the three-dimensional electrode module, the counter electrode module and the diaphragm or the polymer partition plate are arranged in an inner cavity of the reactor shell assembly; according to the invention, the fluid can flow through the interior and surface of the three-dimensional electrode, and a main electrochemical reaction field is transferred to the interior and surface of the three-dimensional electrode, so that the sufficient flow and mixing of the fluid between the electrodes are ensured while the electrode spacing is shortened as far as possible, the solution resistance is reduced, the cell voltage is reduced, and the current efficiency is improved; and energy consumption increase and equipment damage caused by overhigh voltage are avoided.

The invention relates to the technical field of automobile part structures, in particular to a front suspension hub motor wheel edge integrated structure, an assembling method and an automobile. Comprising a rim, a hub motor, a front suspension and a brake, and the rim is of a hollow annular structure; the hub motor is located on the inner side of the rim and comprises an outer rotor shell fixed to the end, away from the vehicle body, of the rim and a stator shell arranged on the outer rotor shell. One end, close to a vehicle body, of the stator shell is positioned on the axial inner side of a rim; the front suspension comprises a steering knuckle fixedly connected with the end, close to a vehicle body, of the stator shell. The brake comprises brake calipers fixedly connected with the steering knuckle and a brake disc connected with the end, close to a vehicle body, of the outer rotor shell. According to the front suspension hub motor wheel edge integration structure, the hub motor is completely integrated in the rim, enough assembly space is reserved for the wheel edge, arrangement of a front suspension and a pipeline is facilitated, meanwhile, a plurality of connectors are reserved, and assembly of the front suspension and the pipeline is greatly facilitated.

The present invention relates to the technical field of unmanned aerial vehicles for power grid line inspection, and discloses an unmanned aerial vehicle for power grid line inspection, including an unmanned aerial vehicle body, support rods are arranged on the left and right side walls of the bottom of the unmanned aerial vehicle body, support mechanisms are arranged at the bottoms of the two support rods, the two support rods can be adaptively swung to perform landing buffering, and the two support mechanisms can perform buffering landing with the ground. The unmanned aerial vehicle for power grid line inspection, the present invention provides a balancing mechanism between the two support rods and the bottom walls on both sides of the unmanned aerial vehicle body, so that when the unmanned aerial vehicle body lands, the support rods can adaptively squeeze with the hard objects on the bottom surface, so that the support rods can be flipped and offset at a certain slight angle, thereby ensuring the stability and stability of the unmanned aerial vehicle body when landing, and solving the problem of tilting and tilting of the unmanned aerial vehicle body when landing.

The utility model discloses a cooling mechanism of temperature-resistant plastic sheet extrusion equipment, relates to the field of plastic sheet cooling, solves the problem that an existing device is difficult to perform efficient air cooling and water cooling heat dissipation on plastic sheets according to requirements, and adopts the following scheme that the cooling mechanism comprises a water cooling frame and an air cooling frame on the rear side of the water cooling frame; a pressing shaft is fixedly installed in the water cooling frame, and liquid bags located on the upper side and the lower side of the plastic sheet are installed in the water cooling frame in a pressed mode. A through groove located in the plastic sheet is formed in the inner side of the air cooling frame, installation grooves are formed in the top side and the bottom side of the air cooling frame, and a fan base is fixedly installed in the air cooling frame. According to the cooling mechanism of the temperature-resistant plastic sheet extrusion equipment, through arrangement of all assemblies on the water cooling frame and the air cooling frame, the liquid bag in the water cooling frame can be directly contacted with a plastic sheet between the liquid bag and the water cooling frame, heat in the plastic sheet contacted with the outer side of the liquid bag is adsorbed by cooling liquid filled in the liquid bag, and the contact area and the heat conduction effect are guaranteed.

The utility model relates to the technical field of battery cooling, in particular to an immersed battery cooling structure and a new energy automobile. The immersed battery cooling structure comprises a box body assembly, a battery cell row and a sealing bracket, the box body assembly is provided with a containing cavity and a containing opening, the box body assembly is provided with a flow dividing channel and a flow converging channel, and the flow converging channel is arranged on the side, away from the containing opening, of the containing cavity. The battery cell rows are mounted in the accommodating cavity, the plurality of battery cell rows are arranged at intervals in a first preset direction to form a battery cell group, a gap flow channel is formed between the adjacent battery cell rows in a clamping manner, and each gap flow channel is respectively communicated with the shunting channel and the confluence channel. The sealing bracket is arranged on one side, close to the accommodating opening, of the battery cell group, and is in sealing connection with the battery cell group and the box body assembly respectively so as to block one side, close to the accommodating opening, of the gap runner. According to the immersed battery cooling structure and the new energy automobile provided by the invention, the problem that an existing immersed cooling structure has a relatively large liquid leakage risk is solved.

The utility model provides a crusher, which belongs to the technical field of garbage disposal and comprises a crushing box, a box door, a feed hopper, a case, a transmission motor, a crushing roller, a crushing box, a motor, a hydraulic elevator, a bearing plate, an extrusion plate, a fixing seat, a damping rod and a supporting column, the box door is mounted at the lower end of the front side of the crushing box, and the feed hopper is mounted at the upper end of the left side of the crushing box; according to the building waste crushing device, the upper end of the crushing roller can be covered with the extrusion plate, the fixing base, the damping rod and the supporting column can provide support for the extrusion plate, the extrusion plate can apply downward pressure to building waste, the crushing effect is good, and the crushing effect is good. And the extrusion plate applies downward pressure to the construction waste stirred and rolled at the upper end of the crushing roller from the upper end, so that the friction force between the construction waste and the crushing roller is increased, the construction waste can be continuously guided in, and the crushing efficiency and the treatment speed of the construction waste are improved.

The invention discloses wear-resistant anti-aging organic silicon modified asphalt for a fog sealing layer and a preparation method of the wear-resistant anti-aging organic silicon modified asphalt, and relates to the technical field of road engineering. The wear-resistant anti-aging organic silicon modified asphalt comprises the following raw materials in parts by weight: 100 parts of petroleum asphalt, 20-25 parts of FCC oil slurry, 40-50 parts of an organic silicon polymer resin composition, 6-12 parts of modified graphene oxide, 3-6 parts of an initiator, 10-15 parts of an organic stabilizer, 4-6 parts of a suspending agent and 1-2 parts of an ultraviolet light absorber, the prepared organic silicon modified asphalt can improve the regeneration reduction and infiltration capacity of a fog sealing layer material, increase the adhesive force and wear resistance of a protective film and prolong the service life of the fog sealing layer material.

The utility model discloses a gluing device, which comprises a glue tank, a glue spraying device, a glue spraying device, a glue spraying device and a glue spraying device, and is characterized in that the glue tank is horizontally arranged and has an upward notch; the rubber roller extends in the length direction of the rubber groove and is rotationally arranged around the axis of the rubber roller, and the rubber roller is a floating roller intersecting with a groove opening of the rubber groove; the roller seats are arranged at the two ends of the rubber roller and are rotationally connected with the rubber roller, and the roller seats are in sliding connection with the rubber groove in the vertical direction. According to the gluing device, the glue roller is designed to be the floating roller floating on the glue solution, the floating roller and the roller seat are supported by the borne buoyancy, and the fixed contact area of the glue roller and the glue solution is ensured, so that the consistent glue solution smearing amount is ensured, the production quality of a composite film is favorably improved, and the situation that the smearing amount of the glue solution is reduced along with the increase of the use time is avoided.

The utility model relates to a planetary dispersion machine which comprises a rack, a planet carrier, a connecting shaft, a transmission shaft and a dispersion disc, and a wall scraper is mounted on the outer circumferential surface of the connecting shaft in a matched manner; a vacuum cover is mounted at the top of the container in a matched manner; the inner diameter of the vacuum cover is smaller than that of the container, so that a limiting ring is formed between the vacuum cover and the container and prevents materials in the container from entering the vacuum cover; the planet carrier drives the transmission shaft to rotate, so that the dispersion disc is driven by the transmission shaft to rotate, and materials in the container are sheared and dispersed; and the planet carrier rotates, so that the wall scraper and the dispersion disc are correspondingly driven to revolve through the connecting shaft and the transmission shaft. By arranging the vacuum cover, the limiting circular ring and the wall scraper, materials attached to the wall face of the container are effectively cleaned, material waste is avoided, and the material quality is guaranteed; meanwhile, materials can be effectively prevented from being attached to the surface of the observation mirror, and personnel can conveniently observe the working process of the planetary dispersion machine.

The invention discloses a sand blocking and mist catching protection system and method for a desert area. The sand blocking and mist catching protection system comprises mist catching towers, shed-shaped sand blocking and mist catching barriers, sand fixing and afforestation covering plates and evaporated water collecting devices which are arranged in a first strip-shaped area, a second strip-shaped area, a third strip-shaped area and a fourth strip-shaped area correspondingly. The first strip-shaped area, the second strip-shaped area, the third strip-shaped area and the fourth strip-shaped area are sequentially arranged in the upwind direction or the peripheral area of a protected object in the prevailing wind direction, are parallel to one another and are perpendicular to the prevailing wind direction. The mist catching tower collects water vapor in airflow at a high position, meanwhile, the shed-shaped sand-blocking mist catching barrier collects water vapor in airflow at the middle-lower layer, the water vapor at different heights is caught, and the mist catching efficiency is improved. The mist catching tower and the shed-shaped sand-blocking mist catching barrier block a part of sand storm, and the sand-fixing afforestation covering plate fixes a part of quicksand, so that an evaporated water collecting device and a protection object in the downwind direction can be effectively protected, and sand storm erosion is avoided.

The utility model discloses a nut positioning and supporting structure, which comprises three cylindrical needles, a plurality of cylindrical pins, a plurality of cylindrical pins, a plurality of cylindrical pins, a plurality of cylindrical pins, a plurality of cylindrical pins and a plurality of cylindrical pins, the outer walls of the cylindrical pins are cylindrical, and the three cylindrical pins are arranged in parallel to define a space for accommodating a nut; the outer wall of the square needle is prism-shaped, and the length direction of the square needle is perpendicular to the length direction of the cylindrical needle; the cylindrical needle and the square needle have linear telescopic degrees of freedom in respective length directions; the side face of the cylindrical needle and the end of the square needle can make contact with the side face of the nut and are limited. The three cylinders are used for clamping a nut and limiting the freedom degree of the nut in the XY plane, the square needle further abuts against the nut, the clamping force is greatly improved, the lifting freedom degree of the nut in the Z direction is limited, the rotation freedom degree of the nut in the XY plane can also be limited, and finally the nut is positioned and supported. The mechanism is suitable for the field of positioning of small workpieces in dies.

The utility model relates to the field of slippers, in particular to a pair of anti-skidding slippers, which solves the problem that a foot sole slides relative to a sole, further improves the use effect of the slippers, increases the air permeability in the slippers, helps to remove moisture and keep the foot dry and comfortable, and can reduce the slipping phenomenon caused by excessive sweating. The utility model discloses a pair of anti-skidding shoes, which aims at solving the problems of improving the safety of walking, increasing the contact area between a sole and the ground, reducing the risk of slipping and better playing a role in protecting. The anti-skidding shoes comprise soles and vamps fixed on the upper surfaces of the soles, and anti-skidding components are arranged on the soles; the anti-skid assembly comprises an arch foot block, first air holes and anti-skid strips, the arch foot block is fixed to the upper surface of the shoe sole, multiple sets of first air holes arranged at equal intervals are formed in the upper surface of the shoe sole, and multiple sets of anti-skid strips arranged at equal intervals are fixed to the lower surface of the shoe sole.

This invention provides a connection structure for air conditioning pipes, relating to the field of air conditioning pipe connections. It includes: a connecting pipe, a fixing plate, sealing washers, a connecting nut, a connecting platform, a connecting plate, an audible and visual alarm, and a fixing rod. The fixing plate is fixedly connected to the middle of the connecting pipe. The connecting nut is threadedly connected to the left and right sides of the connecting pipe. The sealing washers are located on the left and right sides of the connecting pipe. The connecting platform is fixedly connected to the outside of the connecting nut. The connecting plate is threadedly connected to the outside of the connecting platform. The audible and visual alarm is fixedly connected to the outside of the connecting plate. The fixing rod is fixedly connected to the middle of the connecting pipe. This invention avoids situations where the connection lengths of the copper pipes on both sides differ excessively, ensuring the tightness of the air conditioning pipe connection, improving the connection effect of the air conditioning pipe, and enhancing the usability of the connection structure. It solves the problem that existing connection structures easily affect the connection effect of air conditioning copper pipes and the usability of the connection structure itself.

The invention discloses an organic matter-based wave-absorbing composite material filled with a two-dimensional ferrite film and a preparation method of the organic matter-based wave-absorbing composite material, and the method comprises the following steps: preparing a ferrite / Sr3Al2O6 / SrTiO3 heterostructure filled with the two-dimensional ferrite film on an SrTiO3 single crystal substrate with the crystal orientation of (100) by using a ferrite target material and an Sr3Al2O6 target material and adopting a pulse laser deposition technology; stripping a ferrite film in the heterostructure by adopting a water dissolving method to prepare a ferrite / PDMS heterostructure; the preparation method comprises the following steps: spin-coating a mixed solution of an organic film on a monocrystalline silicon (Si) substrate by adopting a spin-coating method to prepare an organic film / Si heterostructure; the ferrite / PDMS heterostructure and the organic matter film / Si heterostructure are subjected to hot pressing through a hot pressing method, and the organic matter-based wave-absorbing composite material filled with the two-dimensional ferrite film is prepared. The preparation process of the organic matter-based wave-absorbing composite material is simple, and the prepared organic matter-based wave-absorbing composite material avoids the phenomena that ferrite powder particles are agglomerated and electromagnetic waves bypass the ferrite particles.

The invention provides a cross-flow fan blade and a cross-flow fan with the cross-flow fan blade, the cross-flow fan blade comprises a plurality of middle-section fan blades which are connected in sequence, and each middle-section fan blade comprises a disc, a connecting structure and a plurality of blades; each blade is provided with a first end and a second end, the first ends are connected with the disc, the second ends extend in the axial direction of the disc, the second ends of the adjacent blades are connected through a connecting structure, the end face, away from the disc, of the connecting structure is a first end face, and the first end face is connected with the disc of the adjacent middle-section fan blade. The first end face of the first middle-section fan blade is connected with the annular groove of the second middle-section fan blade, and the blade of the first middle-section fan blade is connected with the blade groove of the second middle-section fan blade. The connecting structures are arranged at the second ends of the blades, so that the connecting strength between the blades can be enhanced, the whole fan blade is more stable in the operation process, and the phenomenon that the whole fan blade is prone to deformation in the placement process is avoided.

The roots vacuum pump convenient to dissipate heat comprises a pump body shell, a cavity is formed in the pump body shell, a rotor is arranged in the cavity in an attached mode, and a first heat dissipation pipeline and a second heat dissipation pipeline are arranged in the pump body shell and located on the upper side and the lower side of the cavity respectively. One end of the first heat dissipation pipeline is provided with an injection port and a first connecting port in a through mode, the other end of the first heat dissipation pipeline is provided with a second connecting port in a through mode, and one end of the second heat dissipation pipeline is provided with a backflow port and a third connecting port in a through mode. And a fourth connecting port is formed in the other end of the second heat dissipation pipeline in a penetrating manner. The heat dissipation pump is simple in structure and convenient to use, the heat dissipation cavity holes which are connected in the through mode are formed in the pump body shell, the heat dissipation pipes and the heat dissipation fins are connected to the outer portions of the heat dissipation cavity holes in the through mode, and therefore the heat dissipation efficiency of the interior of the cavity can be further improved.

The invention relates to the technical field of metallurgical engineering, and provides a metal smelting waste gas treatment device which is characterized in that a motor is arranged on the outer surface of a water tank, a treatment chamber with the bottom end extending into the water tank is fixed to the top of the water tank, and a third guide plate, two second guide plates and a first guide plate with the bottom being an arc are fixedly connected to the inner top of the treatment chamber; two guide plates are fixedly connected to the inner wall of the water tank, and two hollow rotating shafts concentric with circular arcs at the bottoms of the first guide plates penetrate through one side of the water tank, so that stable vortexes are formed, water spray and waste gas are effectively guided, the water spray and the waste gas are uniformly distributed, the contact area and the contact time of the water spray and the waste gas are ensured, and the waste gas purification efficiency is improved; and meanwhile, industrial water enters the flared pipe immediately after being sprayed out of the spraying holes, no extra straight pipe section is used for transition, the length of the flared pipe is shorter, and occupied space is reduced.

The utility model discloses a double-cone rotary vacuum dryer with a molecular sieve dryer, which comprises a mounting base, a left supporting seat and a right supporting seat which are arranged on the mounting base, an industrial personal computer embedded on the left supporting seat or the right supporting seat, and a rotary drum rotationally arranged on the left supporting seat and the right supporting seat, the first bearing seat is arranged on the left supporting seat, the second bearing seat is arranged on the right supporting seat, the air inlet pipe penetrates through the first bearing seat, one end of the air inlet pipe is arranged in the rotary drum, the second bearing seat is rotationally sleeved with the connecting pipe, one end of the connecting pipe is connected with the rotary drum, the steam inlet pipe penetrates through the connecting pipe, and one end of the steam inlet pipe is arranged in the rotary drum. The dryer is connected with the air inlet pipe, the motor and the speed reducer are arranged on the right supporting seat, the belt is arranged between the motor and the speed reducer, the first gear is arranged on the speed reducer, and the second gear is arranged on the connecting pipe in a sleeving mode and connected with the first gear in an engaged mode.

The utility model discloses a convection reciprocating type flat wire motor stator oil cooling structure which comprises a stator iron core, a stator groove is arranged on the inner side of the stator iron core, copper wires are fully inserted in the stator groove, oil through holes are arranged at the bottom of the stator groove, oil through holes are arranged on the stator iron core close to the outer circle side, and the oil through holes are arranged in multiple groups. The oil through holes are alternately arranged in the transverse direction and the longitudinal direction, every two adjacent transverse oil through holes and longitudinal oil through holes form a group, insulating end rings are installed on the two sides of the stator iron core, each group of oil through holes in the outer circle side of the stator iron core and the corresponding oil through holes in the bottoms of the stator grooves are communicated and sealed to form a closed ring, and the insulating end rings on the same side form a sealed closed ring every other group of oil through holes. According to the utility model, the double-layer oil through holes are arranged on the stator iron core close to the outer circle and the bottom of the stator groove, so that the cooling area of the stator iron core is increased, oil enters the stator iron core from the left side and the right side for convective heat exchange, and the oil is sprayed on a copper wire after circulating once in the stator iron core, so that the heat dissipation efficiency is greatly improved.

The utility model discloses a combined interconnection integrated device, including support frame, data collector and gateway, data collector and gateway are connected through the wire, the support frame top inner surface wall fixedly connected with connecting frame, the connecting frame vertical end sleeve has the sliding sleeve, and a plurality of groups sliding sleeve between fixedly connected with the baffle, and one group in a plurality of groups sliding sleeve is integrated with the fixed component for sliding sleeve and connecting frame fixed connection. In this application, after sliding sleeve is combined to connecting frame, rotates push rod and makes it with sliding sleeve outer surface wall screwing, and push rod and positioning plate rotation cooperation provide the pushing force for positioning plate, and positioning plate slides along the clamping groove, until to positioning plate close to connecting frame vertical end outer surface wall, realizes the fixed baffle through the contact friction of positioning plate and connecting frame, and the positioning plate of translation mode movement guarantees the contact area with connecting frame, avoids the damage to connecting frame outer surface wall simultaneously.

The utility model discloses an anti-deformation device for welding an anti-explosion valve of a battery cover plate, and belongs to the field of welding of battery cover plates. Comprising a supporting seat, a base, a pressing plate, a pressing block and a power assembly. By arranging the base and the pressing plate with the pressing block, during welding, the pressing plate drives the pressing block to move downwards, so that the pressing block is matched with the base to firmly press and fix the substrate, controllable downward pressure is applied in real time in the welding process, deformation caused by thermal stress is actively counteracted, and therefore the situation that the substrate deforms in the welding process can be effectively prevented; and correction treatment after deformation is not needed. Therefore, the flatness deviation of the substrate after the explosion-proof valve is welded can be ensured to be less than or equal to 0.1 mm, and the explosion pressure stability (deviation lt; 5%). And the contact area of the substrate, the base and the pressing block is guaranteed, the heat dissipation efficiency can be guaranteed, stress residues caused by cold and hot changes in the welding process are greatly reduced, and deformation in the subsequent use process is avoided.

This utility model discloses a horizontal slide table for an electric vibration test bench, applied in the field of electric vibration test bench technology. The key technical features are: it includes a lower vibration table and an upper vibration table fixedly connected to the lower vibration table; horizontal grooves are formed along the horizontal direction on both the upper and lower vibration tables; a horizontal slide table is slidably connected within the horizontal grooves; a first abutment plate and a second abutment plate are fixedly connected to the bottom of the horizontal slide table on both sides along the sliding direction; a plurality of abutment support shafts for abutting and supporting the first and second abutment plates are evenly and alternately rotatably connected to both sides of the horizontal groove along the sliding direction; and lubrication components for lubricating both ends of the abutment support shafts are provided within the horizontal grooves. The technical advantages are: simple structure and reduced friction.

The utility model provides a domestic sewage self-flowing interlayer high-efficiency oil removal device which comprises a tank body, a plurality of stages of self-flowing interlayer oil removers are arranged on the tank body, each stage of self-flowing interlayer oil remover is of an interlayer type and is formed by welding two steel plates, and the two steel plates of the self-flowing interlayer oil remover form an opening with one long and the other short. Due to the fact that the self-flowing interlayer degreaser is designed to be in an interlayer type, the contact area of sewage and the interlayer is guaranteed to the maximum extent, the flow speed of the sewage is reduced, the retention time of the sewage passing through the interlayer device is prolonged, precipitation of oil stains in the sewage is effectively improved, three levels are designed, and the problems that the oil stains in the sewage are difficult to precipitate, the precipitation rate is low and the like can be thoroughly solved.

The pickling device for removing the alpha layer of the titanium alloy comprises a main shaft, a vertical panel, a connecting block and a rotating part which are sequentially connected in the horizontal direction, the main shaft is coaxially connected with the vertical panel, the connecting block is eccentrically connected between the vertical panel and the rotating part, the whole rotating part is in an inclined state, and the rotating part is arranged on the vertical panel. The center of the rotating part is located on the axis of the main shaft. According to the pickling device for removing the alpha layer of the titanium alloy, the rotating part is arranged to be in the inclined state, forgings in the rotating part can be forced to do uninterrupted reciprocating motion in the roller in the axial direction in the process of rotating around the main shaft, the forgings are flatly distributed in the roller in the axial direction, point-state distribution is changed into surface-state distribution, the dispersity of the forgings is improved, and the service life of the forgings is prolonged. The contact effect of the forge piece and acid liquor is improved.

The utility model provides a novel fishing rod winding device which comprises a wheel disc, a first rotating shaft, a second rotating shaft, a sleeve and an operation disc, a first gear and a second gear are connected to the end of the first rotating shaft and the end of the second rotating shaft respectively, and rotation transmission of the first rotating shaft is achieved through meshing of the first gear and the second gear. The rope winding action is achieved through rotation of the first rotating shaft, the end of the first rotating shaft is connected with the sleeve, the sleeve is connected with the end of the first rotating shaft in a threaded connection mode, then the distance between the end face of the sleeve and the surface of the boss can be adjusted, and then the contact area between the outer wall face of the sleeve and the outer surface of the boss is guaranteed; therefore, the connection stability of the first rotating shaft and the second rotating shaft at the end parts can be improved, and the first rotating shaft and the second rotating shaft are prevented from deviating or jumping under the meshing of the first gear and the second gear.

The utility model discloses a pressure-limiting drainage structure suitable for preventing instability of a steel lining of an ultra-deep vertical shaft pressure steel pipe, and belongs to the field of water conservancy and hydropower engineering. The drainage system comprises a concrete lining, a connecting pipe, transverse rectangular drainage boxes, a longitudinal drainage main pipe, a steel lining and a pressure steel pipe, the concrete lining is arranged on the outer side of the steel lining of the pressure steel pipe, the transverse rectangular drainage boxes are arranged on the side wall of the steel lining, and the transverse rectangular drainage boxes are communicated through pipelines. The transverse rectangular drainage box is provided with a plurality of drainage holes communicated with an inner cavity of the transverse rectangular drainage box, and the longitudinal drainage main pipe is communicated with the interior of the transverse rectangular drainage box through a connecting pipe. The problems that an existing pressure steel pipe outer drainage structure is mainly used for drainage of transverse tunnels and tunnels, is difficult to adapt to an ultra-deep vertical shaft structure which is built vertically or longitudinally and is large in burial depth, and is difficult to conveniently and accurately enable external water pressure to reach a certain limit value through drainage are solved. The manufacturing cost is low, raw materials are easy to obtain, construction is convenient, the construction cost is low, and comprehensive performance is excellent.