526results about How to "Improve replacement efficiency" patented technology

The invention provides a heat preservation box capable of rapidly replacing a cold source. The heat preservation box comprises a box body and cold storage plates; the box body is provided with a box door, a cold storage area, a control area and a cold source area are arranged in the box body, the cold storage area is separated from the control area and the cold source area through a middle partition board, and the control area and the cold source area are separated through a side partition board; a backflow partition board is arranged in the cold source area, the cold source area is divided into a cold source cavity and a backflow cavity through the backflow partition plate, the cold source cavity communicates with the lower portion of the backflow cavity, a plurality layers of cold sourceframes used for containing the cold storage plates are arranged in the cold source cavity, and the cold source cavity communicates with the cold storage area through an air inlet channel; an exhaustfan is arranged on the air inlet channel, the cold storage area communicates with the backflow cavity through a backflow channel, and an air blower is arranged on the backflow channel; a control module is arranged in the control area, a first temperature sensor is arranged in the cold storage area, the exhaust fan, the air blower, and the first temperature sensor are electrically connected with the control module; and box body, the middle partition plate and the side partition plate are all made of vacuum composite plates. According to the heat preservation box, the replacement efficiency of the cold source is improved.

The utility model discloses a static mixer, which relates to the field of mixing pipelines and comprises an outer pipe, connecting flanges are integrally formed at two ends of the periphery of the outer pipe, mounting mechanisms are arranged in the outer pipe, a plurality of spiral blades are arranged between the mounting mechanisms, the spiral blades are connected with the mounting mechanisms through butt joint mechanisms, and the butt joint mechanisms are connected with the outer pipe. The ends, making contact with each other, of the two spiral blades make contact in a crossed mode, and one connecting flange is connected with one part of the mounting mechanism through a positioning mechanism. By arranging the mounting mechanism, the positioning mechanism and the butt joint mechanism, the screw blade can be fixed without bolts, and the screw blade is more convenient to mount and dismount, so that the replacement efficiency of the screw blade is improved, and the stability of the mounted screw blade is ensured.

The utility model provides a nested type grinding roller structure which comprises an assembling layer, a connecting layer and a grinding layer which are sequentially arranged in an annular nested mode from inside to outside, and concave-convex structures in the horizontal direction and the vertical direction are arranged on the outer surfaces of the assembling layer and the connecting layer respectively. The minimum inner diameter of the inner surface of the grinding layer is larger than the maximum inner diameter of the outer surface of the assembly layer. Cheap carbon steel is used in the inner layer, high-chromium alloy with high cost is used in the outer layer, and the problems of high cost, waste of raw materials and the like in the abrasion replacement process due to the fact that the whole body is cast by using the high-chromium alloy are solved; after the fixing of the assembly layer and the grinding layer is removed, the assembly layer can be taken out from the axial direction and replaced with a new grinding layer, so that a new assembly layer does not need to be cast again, the processing time of a new product is saved, the replacement efficiency is improved, and meanwhile, the cost is reduced to a certain extent by repeatedly using the assembly layer.

The utility model belongs to the technical field of plasma rotating electrode powder manufacturing equipment, and relates to a vacuum dynamic sealing structure of a plasma gun for powder manufacturing, which comprises an external powder blocking module and a dynamic sealing module, the external powder blocking module consists of a first powder blocking plate, a powder blocking ring and an insulating powder blocking plate, the first powder blocking plate is fixed at the top of a plasma gun body to form an arc-shaped shielding surface, and the dynamic sealing module is fixed at the top of the plasma gun body. The powder retaining ring coaxially sleeves the positive electrode of the plasma gun body and forms an annular gap type powder blocking structure with the insulating powder retaining plate; the dynamic sealing module is sequentially provided with a dynamic sealing installation metal cylinder, an insulating cylinder and a sealing assembly from outside to inside in the radial direction of the plasma gun body, the insulating cylinder and the dynamic sealing installation metal cylinder form a step-shaped sealing structure, and vacuum sealing and electrical isolation are achieved between the dynamic sealing module and the external powder blocking module through bakelite and an O-shaped sealing ring. The vacuum dynamic sealing structure provided by the utility model has the advantages of powder isolation, reliable sealing, no burning loss short circuit and no need of vacuum grease auxiliary sealing lubrication.

This invention relates to the field of rapid pressing technology for improving fabric in CAF furnaces, and discloses a rapid pressing device for improving fabric in CAF furnaces, including a rotating mechanism, a base mechanism, and an auxiliary fixing mechanism. The lower end of the rotating mechanism is fixedly connected to the base mechanism, and the outer side of the rotating mechanism is fixedly connected to the auxiliary fixing mechanism. Through the cooperation of two symmetrically arranged rotating arm assemblies and an L-shaped rotating rod, the rapid lifting and lowering operation of the pressure plate is realized. The fixing and releasing of the improving fabric can be completed without the aid of tools, which greatly improves the operating efficiency. Through the magnetic attraction cooperation of the tension spring, strong magnet, and strong magnetic column, the spring tension automatically maintains the pressing state after the pressure plate is pressed down, without the need for an additional locking mechanism. At the same time, the magnetic separation design makes the release operation convenient and quick, realizing the unity of automatic maintenance and rapid release of the pressing state. The structure is simple and easy to operate.

The utility model relates to air purification and filter technical field discloses a kind of high-efficiency filter with U-shaped groove sealing frame, including U-shaped frame one, the right side of U-shaped frame one is provided with U-shaped frame two, the inside of U-shaped frame one and U-shaped frame two is all provided with U-shaped groove, the inside of U-shaped frame one and U-shaped frame two is provided with mounting assembly, the inside of U-shaped frame one and U-shaped frame two is provided with mounting frame, the inside of mounting frame is provided with filter assembly. In the utility model, by the cooperation of limiting groove, limiting block, fixed bolt, mounting groove and jack, two U-shaped grooves can be sealed connection, and under the action of buffer pad and sealant, the problem of insufficient sealing effect and significant decline in filtration efficiency is solved, so that the sealing effect of mounting frame and filter material and U-shaped groove is realized, the wear during work is reduced, and the service life is increased.

The utility model discloses an intelligent bracelet for community service supervision of community correction objects, which comprises a bracelet body, two ends of the bracelet body are both fixedly connected with connecting blocks, positioning blocks are hinged in the connecting blocks, one side of each positioning block is provided with a slot, two ends of the bracelet body are both provided with watchbands, and the watchbands are connected with the connecting blocks. One end of the watchband is fixedly connected with an insertion block, the insertion block is inserted into the insertion groove in a sliding mode, clamping plates are inserted into the two sides of the positioning block in a sliding mode, clamping grooves corresponding to the clamping plates are formed in the outer side wall of the insertion block, the clamping plates are fixedly sleeved with stop blocks, and first springs are fixedly connected between the stop blocks and the outer wall of the positioning block; according to the clamping and fixing assembly, the watchband can be conveniently connected with the bracelet body of the intelligent bracelet, the watchband can be conveniently replaced, and the replacement efficiency is further improved.

The utility model provides a full -color adjustable light LED lamp drive control device relates to LED lamp drive control technical field, including the shell, the outside of shell is provided with convenient dismounting mechanism, and convenient dismounting mechanism includes quick -mounting shell, and the inside sliding joint of quick -mounting shell has quick -mounting block, and the front fixedly connected with the central controller of quick -mounting block, and the inner wall of quick -mounting shell is fixedly connected with first magnetic plate, first signal contact, first power contact and signal socket respectively, and the inner wall of quick -mounting block is fixedly connected with second magnetic plate, second signal contact and second power contact respectively. This full -color adjustable light LED lamp drive control device cooperates with each other through shell, quick -mounting shell, quick -mounting block, central controller, first magnetic plate, second magnetic plate, first signal contact, first power contact, signal socket, second signal contact, second power contact, battery and charging head, and the charging head can connect the external power cord and charge the battery, and the quick -mounting block can be inserted into quick -mounting shell.

A nitrogen replacement and filling device for a carbon steel tank-type container includes a connecting flange and one end of a connecting pipe D. The other end of connecting pipe D is connected to connecting pipes A, B, and C via a four-way fitting. The free ends of connecting pipes A, B, and C are connected to ball valves A, B, and C, respectively. A pressure gauge is connected to ball valve A. A nitrogen cylinder and a vaporizer are mounted on a traveling mechanism. The nitrogen cylinder, vaporizer, and ball valve B are connected by pipelines. This invention improves the efficiency of nitrogen replacement and ensures accurate nitrogen filling pressure inside the tank.

The utility model discloses a convenient to replace's car brake pad, including fixed frame, the both sides of fixed frame are all fixedly connected with the link block, is equipped with the slot on the link block, and the link strip is inserted in the slot, and the through -hole is uniformly equipped with the link strip on, and the spring rod is inserted in the through -hole, and the spring rod swing plug link block, the both sides of fixed frame are all fixedly connected with electric push rod, and the electric push rod output is fixedly connected with the moving plate, and the moving plate one side is fixedly connected with the extension block, and the extension block one side is connected with the adjusting lever of screw thread, and the adjusting lever one end is fixedly connected with the adjusting disc, the utility model discloses through link strip and spring rod makes fixed frame and car calliper link, and the card plate is inserted simultaneously from the calliper observation hole and links car brake pad or brake calliper pump piston to the rotation adjusting lever, then utilizes electric push rod to drive the moving mode of moving plate and carries out extrusion to brake pad and brake calliper pump piston, thereby convenient for the follow -up replacement of brake pad, and the replacement efficiency is promoted.

The utility model provides a kind of solid raw material dewatering equipment for three-proofing glue production, belong to the technical field of glue production, including bearing mechanism, including adsorption tower, fixed installation in the top of adsorption tower pipe body and the sealing cover of movable installation in the top of pipe body;Mounting mechanism, including ring sleeve.The utility model is by box body and support disc to realize molecular sieve granule board whole quick replacement, greatly shorten downtime, avoid production interruption;Sealing cover and mechanical interlock's positioning assembly ensure that adsorption tower is airtight when disassembling, prevent air moisture absorption or dust leakage;Spring support and limiting structure of jacking assembly auxiliary one-key type release locking mechanism, reduce artificial intervention, avoid the risk of forcible disassembly when high temperature is not pressure relief;Prepackaged filling type molecular sieve granule board is directly replaced, and particle crushing and pipeline pollution are eliminated.These designs comprehensively improve replacement efficiency, safety and sealing, solve the production bottleneck and hidden danger of traditional replacement mode.

This utility model relates to a quick-change installation structure for a grinding head assembly, including a grinding head assembly and a pneumatic grinding fixing device. The grinding head assembly consists of a grinding head support arm, a buffer block fixing block, an elastic buffer pad, and a sandpaper sheet. One end of the grinding head support arm is a straight arm, and the other end is a bent arm. Guide keys are provided opposite each other at the straight arm end, and radial positioning pin holes (hemispherical holes) are provided at a 90° angle to the two guide keys. One end of the pneumatic grinding fixing device is fixedly connected to the cantilever support rod of the grinding actuator, and the other end has an insertion hole with two guide keyways opposite each other on the hole wall. The two guide keyways are inserted into the two guide keys on the grinding head support arm. Two mounting cavities are provided opposite each other at a 90° angle to the two guide keyways at the other end of the pneumatic grinding fixing device. Each mounting cavity contains a set of elastic locking and unlocking components, and the two sets of elastic locking and unlocking components are respectively inserted into the two radial positioning pin holes on the grinding head support arm through a locking and unlocking pin. This structure has the advantages of convenient operation and stable reliability.

The utility model relates to the technical field of filter supports, and discloses a quadruple filter support which comprises a carrier and a filtering device, the top of the filtering device is detachably connected with a pressing table, the top of the pressing table is rotatably connected with a knob, the bottom of the knob is fixedly connected with a driven table, and the driven table is fixedly connected with a motor. A plurality of driven grooves are formed in the bottom of the driven table, driven columns are slidably connected to the interiors of the driven grooves, driven plates are rotatably connected to the exteriors of the driven columns, a plurality of driven blocks are slidably connected to the interior of the pressing table, and a first spring is fixedly connected to the inner wall of the left side of one of the driven blocks; the right side of the first spring is fixedly connected with a wedge-shaped block. According to the filter device, the pressing table is quickly disassembled and assembled, complex operation is not needed when the filter element is replaced, the filter element replacement efficiency is remarkably improved, manpower and time cost is saved, it is ensured that the pressing table stably fixes the filter element, the filter element is prevented from being separated in the using process, and stable operation of the filter device is guaranteed.

The application discloses an industrial steel cutter with adjustable cutting depth and an implementation method thereof, and relates to the technical field of industrial cutting tools, aiming to solve the problem that most of the existing industrial steel cutters adopt fixed structures or simple bolt adjustment structures, the cutting depth of the fixed steel cutter cannot be adjusted, and the steel cutter can only adapt to a single machining condition, the bolt adjustment structure only relies on a single bolt locking, and cannot realize micron-level precision fine adjustment, and the technical scheme is as follows: the industrial steel cutter comprises a cutter body shell, a connecting seat with holes, a telescopic blade assembly, a fine adjustment driving assembly and a connecting assembly, a mounting cavity is arranged at the bottom of the cutter body shell, the connecting assembly is slidingly assembled in the mounting cavity, a driving cavity is arranged at the top of the cutter body shell, the telescopic blade assembly and the fine adjustment driving assembly are connected through the connecting assembly, the industrial steel cutter adopts a worm gear and differential variable pitch screw composite transmission structure, the worm gear has a speed reduction transmission effect, and micron-level cutting depth fine adjustment can be realized.

The utility model provides a kind of quick positioning locking mechanism of battery protection shell injection mold, belong to mould technical field;Including positioning seat and lower mould, positioning seat is equipped with positioning assembly, positioning assembly is used to position lower mould quickly on positioning seat;Positioning assembly includes positioning groove, positioning groove is opened in the inner wall of positioning seat, the bottom of lower mould is fixedly provided with positioning block, positioning block and the inner wall of positioning groove slide, the both sides of positioning seat are equipped with sliding slot, limit rod is slidably arranged in sliding slot, the outer side wall of positioning seat is fixedly provided with support frame, the outer side wall of limit rod is fixedly provided with sliding plate, spring is fixedly provided on sliding plate, one end of spring is fixed with support frame, by the setting of positioning assembly, by the embedding cooperation of positioning block and positioning groove, the installation position of lower mould is quickly determined to form preliminary positioning, when positioning block and positioning groove are completely contacted, the plug-in of limit rod and limit hole completes the further positioning of lower mould.

The utility model relates to photoresist production auxiliary equipment technical field, concretely relates to an insulating carbon black storage device for photoresist, including storage box, the top of storage box is connected with feed inlet, the first solenoid valve is installed in the communication of feed inlet and storage box, the output port department of storage box bottom is provided with the second solenoid valve, still including fixed mounting on the turbine molecular pump of storage box outer side wall, the output end of turbine molecular pump is connected with the air cylinder of fixed mounting in the outer side wall of storage box, the top lift sliding of air cylinder is inserted with nitrogen tube, the output end of nitrogen tube is inserted to storage box, and is equipped with one -way exhaust valve, the utility model discloses nitrogen tube height is adjusted dynamically through lift cylinder, makes it always close carbon black material surface, and nitrogen fills the space not being occupied by material directly, and replacement efficiency improves 30% or more, and nitrogen consumption reduces 20%-40%, and turbine molecular pump provides high -purity nitrogen delivery, prevents the back flow in combination one -way exhaust valve, ensures the inert environment of fast establishment.

This application belongs to the field of aero-engine technology, and specifically relates to a method and apparatus for simulating aircraft bleed air during sustained test of a turbofan engine, wherein the inlet temperature T1 and inlet pressure P1 of the engine are preset to a range; Step S2: Calculate the aircraft bleed air volume W fy The range, the total bleed air temperature T of the aircraft fy The range and total bleed air pressure P fy Range; Step S3: Calculate the cold diameter D of the bleed air nozzle. fy Range; Step S4: Select the cold-state diameter D of the bleed air nozzle fy An aircraft bleed air volume verification test was conducted to obtain the bleed air volume W for the test. fyr When the induced draft volume W in the experiment fyr The requirements are met, and the cold-state diameter D of the expiratory air nozzle is adopted. fy When the induced draft volume W in the experiment fyr If the requirements are not met, return to step S4; ensure that the calculation error of the aircraft bleed air volume is within the required range, and obtain the actual bleed air volume of the engine in various states to the maximum extent through test program design. This test method has the advantages of simple test method, low test cost and high replacement efficiency.

This utility model discloses a plastic film winding device, applied in the field of plastic film production. It includes a base plate, a support plate bolted to the top of the base plate, and a fixing plate bolted to the surface of a fixing plate. A tension roller is rotatably sleeved between the inner walls of the fixing plates. This utility model achieves good winding quality and ease of use by using friction between a friction block and a friction disc to generate resistance in the tension roller and tighten the plastic film for winding. The rotating head changes the friction between the friction block and the friction disc, adjusting the winding resistance and improving practicality and applicability. Furthermore, the device facilitates replacement by moving a sliding cylinder to disengage it from the fixing groove, and a locking connector, under the action of a third spring, engages with the locking hole to fix the sliding cylinder. The winding roller is then removed from the fixing groove for replacement, reducing workload and improving replacement efficiency.

The utility model relates to the technical field of sweet potato peeling, and discloses a sweet potato selecting and peeling device which comprises a peeling box, the top of the peeling box is connected with a box cover through a hinge, a motor is installed at the bottom of the peeling box, and the output end of the motor is fixedly connected with a rotating shaft. The other end of the rotating shaft extends into the peeling box and is fixedly connected with a centrifugal disc, the top of the centrifugal disc is fixedly connected with a frosted plate through a mortise lock mechanism, a spraying box is installed at the position, located above the frosted plate, in the peeling box, and water tanks are fixedly connected to the outer surfaces of the two sides of the peeling box correspondingly; according to the device, spraying water can be continuously added into the spraying box through the pumping and pressing mechanism while the motor drives the centrifugal disc and the frosted plate to rotate and peel, so that the surfaces of sweet potatoes can be isolated from air by utilizing the spraying water, and the surfaces of the peeled sweet potatoes can be prevented from generating browning and breeding bacteria; therefore, the peeling quality of the device is greatly improved.

The utility model discloses a rocking chair with high -strength arc pipe, including rocking chair body, the symmetry of rocking chair body bottom welds two groups arc base, is equipped with counterweight in every arc base, and the arc base on the arc piece of bottom mounting with own camber matching also includes the locking assembly for synchronous fixed counterweight and arc piece on arc base, rocking chair body and arc base welding connection of the utility model, has guaranteed the stability of both connection, has promoted rocking chair overall structural strength, and arc base adopts high -strength arc pipe, compared with ordinary metal pipe, can bear greater pressure and swing stress, reduces the possibility of deformation and fracture, prolongs the life, and the setting of counterweight has strengthened the stability of rocking chair, makes the user use more safely, and locking assembly realizes the synchronous fixing of counterweight and arc piece, has simplified the installation step, has improved the dismounting efficiency.

The utility model discloses a kitchen faucet with quick detachable filter structure belongs to faucet technical field, and its technical scheme main points are: including faucet main part, outlet tube, bubbler and filter core, and the outlet tube rotatory connection is in the faucet main part, and the outlet end of outlet tube is equipped with the limiting step for limiting the bubbler, and the bubbler detachable setting is in the outlet end of outlet tube, is provided with the containing groove on the bubbler, and the filter core is placed in the containing groove, and the water flow in the outlet tube passes through the filter core and bubbler in proper order, and the outlet end of outlet tube is provided with two clamping grooves, and the lateral wall of bubbler is equipped with two connecting blocks, and the clamping groove is'L'shape, when rotating and moving downward again bubbler, two connecting blocks can respectively from the corresponding clamping groove separate, when moving upward and rotating again bubbler, two connecting blocks can respectively lock in the corresponding clamping groove, and this faucet can quickly complete the replacement maintenance of filter core, and the replacement efficiency of filter core is improved significantly, and the maintenance difficulty is reduced.

The utility model discloses a solid-state composite multi-ion detection device, which is applied to the field of ion detection and comprises a shell, a fixed cylinder is bolted on the surface of the shell, a net pipe is bolted between the inner walls of the shell, and an indicator electrode is sleeved on the inner wall of the fixed cylinder in a sliding manner; according to the utility model, the rotating cylinder is rotated to enable the connecting rod to drive the clamping head to move, so that the clamping head is separated from the clamping groove, the indicating electrode is taken out and a new indicating electrode is installed, and the clamping head is clamped with the clamping groove under the action of the first spring to fix the indicating electrode, thereby achieving the purpose of conveniently replacing the indicating electrode, reducing the workload and improving the working efficiency. By means of the mode that the rotating ring is rotated to enable the triangular block to drive the sliding rod to move, the sliding rod moves to enable the clamping rod to be disengaged from the fixing groove in a clamping mode, and the bottom cover is taken down for maintenance, the purpose of facilitating maintenance can be achieved, the workload is reduced, and the maintenance efficiency is improved.

The application discloses an automatic replacement system of color photovoltaic adhesive film, and particularly relates to the photovoltaic power station operation and maintenance technical field, comprising a sensing and detecting module, a decision control module, an execution operation module, a material processing and supply module and a safety auxiliary module; the sensing and detecting module is used for acquiring the position, contour and surface state data of the photovoltaic module; the application constructs a three-dimensional grid model of the module through the decision control module, realizes intelligent scoring and global path optimization of the work unit based on a rule base, and generates an optimal work sequence; through adaptive process parameter adjustment in the execution operation module, the hot air power and the winding tension are dynamically adjusted according to the surface color, temperature and defect characteristics of the module, so that the old adhesive film peeling quality and the new adhesive film laying precision are significantly improved; the whole-process automation from detection, decision, execution to quality review is realized, the replacement efficiency and quality consistency are effectively improved, and the work safety is ensured.

This application relates to a quick-release stamping die, comprising a fixed die and a controllable movable die. The movable die is connected to a stamping seat, and a first slot is provided on one side of the stamping seat. A pressure bearing seat is provided on the side of the fixed die, and a second slot is provided on one side of the pressure bearing seat. The punch includes a stamping part and a first insertion part inserted into the first slot, and the die includes a cavity and a second insertion part inserted into the second slot. This quick-release stamping die achieves detachable connection between the punch and the stamping seat, and between the die and the pressure bearing seat through the above structure, avoiding the operation of disassembling the entire die. It solves the problems of cumbersome replacement, low efficiency, and inaccurate positioning, and realizes rapid disassembly and assembly and precise positioning of die components, significantly improving the flexibility and efficiency of stamping operations.

The utility model relates to the technical field of column, concretely is a kind of adjustable column of large -scale injection molding machine, it includes: adjustable column, adjustable column is inserted in first through-hole, second through-hole and third through-hole, and fixed on fixed mould limit rod installation plug-in seat, and limit rod installation plug-in seat is opened in limit rod plug-in hole;Beneficial effect is: the end of the end of the one end of adjustable column originally inserted in first through-hole is moved to second through-hole, i.e. adjustable column can be adjusted and opened from the space between movable mould and fixed mould, so that injection mould can be directly moved from the side of injection molding machine body by hoisting equipment, so that when replacing injection mould, the hoisting time of injection mould is greatly shortened, the replacement efficiency of injection mould is accelerated, the height requirement of hoisting equipment is also reduced, and then the construction height demand of workshop is reduced, greatly save the construction cost of workshop.

The application relates to a conveying roller and a filter rod receiving device, the conveying roller comprising a roller body and end covers, the roller body extending along a first direction, the roller body being provided with a cavity penetrating through the roller body along the first direction; the two end covers being respectively located at two ends of the roller body in the first direction and being detachably connected with the roller body, the end cover comprising a cover body and a rotating shaft, the cover body being connected with the roller body, the rotating shaft being located at a side of the cover body away from the roller body, and at least one of the rotating shafts of the two end covers being used for bearing a bearing. The conveying roller provided by the application is provided with the cavity penetrating through the roller body, so that the overall weight of the conveying roller is reduced, the torque impact on the rotating shaft is reduced, the probability of the rotating shaft being broken is reduced, and the service life of the conveying roller is prolonged. The roller body and the end cover are detachably connected, so that even if the rotating shaft on the end cover is broken, the roller body can still be used by replacing the end cover, the replacement efficiency is improved, and the maintenance cost is reduced.

The utility model relates to cement detection technical field especially relates to a cement detection electric bending testing machine, including operation platform, the operation platform top fixedly connected with mounting seat, the operation platform top mounting seat both sides position fixedly connected with mounting bracket, the mounting bracket top is equipped with hydraulic pressure rod, the hydraulic pressure rod bottom fixedly connected with the pressing block, the mounting seat top installation place in the pressing block bottom position is developed and provided with the upper clamp, the upper clamp bottom is developed and provided with the loading roller, the loading roller with upper clamp junction is developed and provided with mounting assembly, the lower clamp is provided with below the upper clamp, be provided with lifting assembly between the lower clamp and mounting bracket. The utility model not only can make loading roller can carry out quick installation and disassembly to improve the replacement efficiency when loading roller appears damage, and can make test piece can be adjusted to be closely combined with loading roller after being placed well to make test data more accurate.

The utility model discloses a device for on-line replacement of a spraying system in a biological filter, which comprises a sewage pipe, a spraying pipe and a spraying head, a water pipe bayonet is arranged on the sewage pipe, a clamping component matched with the water pipe bayonet is arranged at the joint of the sewage pipe and the spraying pipe, and the spraying head is arranged on the spraying pipe. A water retaining cap matched with the clamping assembly is installed at the bottom of the water pipe bayonet, a filtering box is installed at the joint of the spraying pipe and the spraying head, and a filtering assembly is installed in the filtering box. Compared with the prior art, the spraying device has the beneficial effects that the clamping assembly which is convenient to disassemble is arranged between the spraying pipe and the sewage pipe and is matched with the filtering assembly which is convenient to replace and is arranged above the spraying head, so that the replacing and cleaning efficiency of the spraying assembly is improved, the operation procedures are reduced, and the spraying assembly is convenient to disassemble and replace quickly.

The utility model relates to circulating water aquaculture filtration technical field discloses a kind of three-dimensional filter devices of circulating water aquaculture, including coarse filter box, the coarse filter box inside is provided with coarse filter screen, the coarse filter box side wall is provided with fine filter box, the fine filter box inside is provided with fine filter screen, the fine filter box side wall is provided with biological filter box, the biological filter box inside is provided with filler plate, the biological filter box side wall is provided with clean water tank, the coarse filter box side wall is provided with cleaning assembly, the biological filter box inside is provided with mounting assembly;The cleaning assembly includes cleaning plate, and the cleaning plate side wall is attached to the coarse filter screen side wall.In the utility model, the chain sprocket and chain transmission driven by motor are used to move the cleaning plate up and down along the coarse filter screen to scrape off impurities, so as to achieve the effect of automatic cleaning of filter screen and prevention of blockage. The above structure improves the automation maintenance efficiency of the filter device and reduces the labor operation cost.

The utility model discloses an animal laboratory waste gas filtering device relates to the field of waste gas filtration for animal laboratory, including filter box, the air inlet end fixed mounting of filter box has the air inlet pipe, the exhaust end fixed mounting of filter box has the exhaust pipe, the inside upper and lower slide mounting of one end of filter box close exhaust pipe has the sliding frame, the inside top end board of filter box is equipped with the insertion slot that supplies sliding frame inserts, the inside installation of sliding frame has sterilization mechanism, the top of filter box is installed to the limiting mechanism that sliding frame and sterilization mechanism carry out the location, the inside wall of sliding frame and insertion slot, the inside wall of filter box contact position department installs the sealing ring. The utility model discloses through setting up sterilization mechanism and limiting mechanism, can conveniently distribute or integral replacement to no.