115results about How to "Protective structure" patented technology

The piston type liquid damper comprises a cylinder body, a piston piece, a first connecting ring and a pressure relief piece, the piston piece is movably installed in the cylinder body, the first connecting ring is fixedly installed at the right end of the cylinder body, and the pressure relief piece is installed in the cylinder body and connected and matched with the piston piece. The piston piece comprises a piston rod, a movable piston block and a fixed piston block, and one end of the piston rod penetrates through and slides into the cylinder body in a sealed mode. The powerful balance spring is arranged to support the pressure relief piston, when the protruding block is subjected to overrun pressure, the pressure relief piston is pushed to displace to extrude the powerful balance spring to unload internal pressure, the device structure is protected, meanwhile, the corrugated design of the inner side of the cylinder body is matched with the cooling fins to enhance the heat dissipation capacity, and the service life of the device is prolonged. Therefore, the device has the advantages that pressure generated by instant excessive impact is relieved, the structure of the device is protected, meanwhile, heat dissipation is enhanced, and the service life of the device is prolonged.

The utility model relates to the technical field of cleaning, and provides a powder chamber gun barrel and gun body powder cleaning device which comprises a powder chamber, a sliding groove is formed in the side face of the powder chamber, a bottom moving seat is arranged on the side face of the powder chamber, a sliding plate is connected to the top of the bottom moving seat in a sliding mode, and an adjusting device is arranged on the sliding plate. According to the utility model, when the motor is started, the output shaft of the motor drives the threaded rod to rotate, and the threaded rod is in threaded connection with the threaded sleeve, so that the rotation of the threaded rod is converted into the linear movement of the threaded sleeve. And movement of the threaded sleeve further drives the moving plate, the connecting plate, the connecting column, the fixing block and the powder spraying gun to integrally conduct lifting motion, the powder spraying gun moves up and down and left and right, the powder spraying gun can be moved out of the powder room to be cleaned, and through the technical scheme, the technical problem that the powder spraying gun cannot be cleaned in the related technology is solved.

The utility model relates to the technical field of radish irrigation devices, in particular to an energy-saving irrigation device for radish planting, which comprises a storage box, a water inlet pipe is fixedly mounted at the top of a front side plate of the storage box, a threaded pipe is mounted at the water outlet end of the water inlet pipe, and a threaded sleeve is in threaded connection with the threaded pipe. A filter mesh bag is fixedly mounted at the bottom end of the threaded sleeve; a conveying pump is arranged outside the storage box, a conveying pipe is fixedly installed at the water outlet end of the conveying pump, a plurality of evenly-distributed pipes are detachably connected to the conveying pipe, a plurality of water dripping holes are formed in the evenly-distributed pipes, a hard pipe is fixedly installed at the water inlet end of the conveying pump, and the tail end of the hard pipe penetrates into the storage box and is fixedly provided with a hose. A threaded connector is fixedly installed at the tail end of the hose, a mesh cylinder is detachably connected to the end of the threaded connector, a filter screen is arranged on the outer surface of the mesh cylinder, and a hollow floating plate is fixedly installed on the top face of the mesh cylinder. The drip irrigation device is convenient for drip irrigation operation and has a better impurity filtering effect.

The present application relates to the technical field of artificial board, and discloses a kind of mould-proof composite board for wardrobe and a preparation method thereof.The composite board for wardrobe prepared by the present application is prepared by using rubberwood sheet as main raw material, impregnating treatment with mould-proof and antibacterial agent, and then adhesive treatment with adhesive containing mould-proof and antibacterial agent.The composite board realizes long-term inhibition of mould through multi-mechanism sterilization of components, synergistic effect and material level protection, and is suitable for wardrobe application in high-humidity environment.In addition, the use of mould-proof and antibacterial adhesive also endows the composite board with excellent bonding strength.

The invention relates to the technical field of circulating carriers, and discloses a rollover self-unloading type goods standardized circulating logistics carrier which comprises a logistics carrier body used for goods transportation, the logistics carrier body is a rectangular box body composed of a bottom frame and a frame installed on the periphery of the bottom frame, and the upper end face of the box body is open and used for bearing and transporting goods; a side frame door is arranged between two adjacent side frames of the box body, the upper end of the side frame door is rotatably connected with the upper ends of the two side frames through a rotating shaft, the lower end of the side frame door and the box body are detachably connected with a bottom frame through two sets of self-locking mechanisms, each self-locking mechanism comprises a connecting rod, and the connecting rods are rotatably connected with the bottom frame of the box body through a first support. And a lock catch is vertically and fixedly mounted at one end of the connecting rod. During unloading, the box body is inclined towards one side of the side frame door around the second bracket; the first chain is loosened, so that the connecting rod rotates under the action of gravity, and the lock catch is automatically separated from the side frame door; and the side frame door is automatically opened under the action of gravity.

The utility model discloses a tensile cable which comprises an insulating layer and an outer sheath, the outer sheath is arranged on the outer side of the insulating layer, and a conductor is wrapped in the insulating layer; the cable further comprises a reinforcing layer, and the reinforcing layer is attached to the outer side of the insulating layer and is formed by weaving multiple layers of high-strength fibers. The cable further comprises an elastic buffer layer used for buffering the tensile force of the outside to the cable, the elastic buffer layer is composed of an inner sleeve and an outer sleeve which are respectively attached between the reinforcing layer and the outer sheath, and an anti-tensile structure located between the inner sleeve and the outer sleeve interlayer, and the anti-tensile structure is formed by X-shaped anti-tensile belts which are distributed around the circumference of the outer wall of the inner sleeve in an array mode. The two ends of the tensile belt are fixedly connected with the outer wall of the inner sleeve and the inner wall of the outer sleeve respectively, and the outer side of the outer sheath is also provided with a corrugated pipe. The utility model belongs to the technical field of cables, and particularly provides a cable for solving the problems of poor electrical performance and potential safety hazards caused by deformation and damage due to poor tensile property in the prior art.

The invention belongs to the technical field of photovoltaic panels, and particularly relates to an energy-saving elevator photovoltaic panel mounting structure which comprises a base station, a side wall is fixedly connected to one side of the base station, two outer stand columns are fixedly connected to the corners of the base station, and two symmetrical vertical shafts are arranged between the two outer stand columns. A vertical shaft is arranged between each outer stand column and the side wall and close to the outer stand column, multiple sets of second shaft seats are fixedly connected to the two outer stand columns, a photovoltaic panel frame is rotationally connected between each set of second shaft seats, and multiple first shaft seats are fixedly connected to the two inner stand columns close to the outer stand columns. Each first shaft seat is rotationally connected with a frame seat rotationally connected with the vertical shaft, each frame seat is rotationally connected with a photovoltaic panel frame, and the outer side of each photovoltaic panel frame is fixedly connected with a photovoltaic panel. The horizontal angle and the vertical angle of the photovoltaic panel frame and the photovoltaic panel are adjustable, so that the photovoltaic panel can be located at the optimal sunlight incident angle, the electric energy conversion efficiency of the photovoltaic panel is improved, the generating capacity is improved, and then the energy-saving effect is improved.

The invention discloses an astaxanthin liposome-coating probiotic compound system based on an interface free radical quenching and bidirectional coupling mechanism and application of the astaxanthin liposome-coating probiotic compound system in oxidative stress protection, and belongs to the technical field of biological medicines and probiotic preparations. According to the preparation method, probiotics with an iron ion mediated sodium alginate-guar gum coating are constructed, and the probiotics and astaxanthin nano-liposomes form an interface protection layer in a hydrogen peroxide stress microenvironment. Wherein astaxanthin protects the key enzyme activity of a thallus energy metabolism pathway, and the thallus continuously consumes a hydrogen peroxide substrate in the environment through an enzyme system of the thallus. According to the composite system disclosed by the invention, under the condition of no chemical coupling, synergistic enhancement of antioxidant defense and thallus activity can be realized through physical blending, the survival rate and colonization ability of probiotics in gastrointestinal stress are remarkably improved, and an innovative solution is provided for targeted intervention of inflammatory bowel diseases and development of functional probiotic preparations.

The utility model discloses a spacing-adjustable semiconductor chip test fixture, which belongs to the field of semiconductor chips, and comprises a placing plate, four corners above the placing plate are fixedly connected with stand columns, the interiors of the four stand columns are rotatably connected with mounting rods, the top ends of the four mounting rods are fixedly connected with connecting rods, and the connecting rods are fixedly connected with the connecting rods. According to the scheme, through sliding of the sliding sleeve on the connecting rod and clamping connection of the eight circular holes in an equidistant linear array and the clamping blocks, multi-gear adjustment of the installation position of a test component can be achieved, and the test component can be conveniently and rapidly installed on a chip with the size exceeding a traditional fixing range. According to the utility model, accurate adaptation can be realized by adjusting the position of the sliding sleeve for chips with irregular shapes, irregular shapes and special pin distribution, so that the application range of the clamp is greatly widened, the situation that the clamp is frequently replaced due to the difference of chip specifications is reduced, and the equipment purchasing and using cost of enterprises is reduced.

The utility model provides a kind of for specimen manipulator device, belong to automation control technical field.It solves the problem that conveying line, gear and rack type manipulator structure is complex, occupies large space, service life is low, maintenance cost is big.A kind of for specimen manipulator device, including driving device, micro lead screw guide rail module and jaw linkage block, driving device is assembled in the top of micro lead screw guide rail module, the lower portion of micro lead screw guide rail module is equipped with jaw linkage block, jaw linkage block's lower portion middle part is oppositely rotated and is installed with clamping arm, driving device is used to drive micro lead screw guide rail module to move up and down to drive jaw linkage block to move up and down, when jaw linkage block moves up and down, clamping arm rotates around its inflection point to realize specimen action of clamping and loosening.It has the advantages of simple structure, small space occupation, long service life, low maintenance cost.

The application discloses a resistive switching memory structure and a manufacturing method thereof. The resistive switching memory structure comprises, from bottom to top, a bottom electrode, a resistive switching layer and a top electrode. The upper surface of the bottom electrode and the lower surface of the resistive switching layer are in Schottky contact, and the lower surface of the top electrode and the upper surface of the resistive switching layer are in Ohmic contact. The resistive switching layer is a single oxide film layer. The materials of the bottom electrode and the top electrode are the same metal nitride, and the atomic number ratio of metal elements to nitrogen elements in the top electrode is greater than that in the bottom electrode. The application can simplify the structure of the memory, reduce the process complexity and manufacturing cost.

The invention relates to the technical field of defibrating equipment, and discloses a modular detachable cage type defibrating machine roller tooth, which comprises a roller frame, the roller frame comprises supporting strips, radial plates and a main shaft, the supporting strips are distributed in a circumferential array, and the radial plates are respectively connected with the end parts of the supporting strips; mounting grooves are formed in the supporting strips in the length direction; two ends of the main shaft are respectively connected with the radial plates to form a frame body; each modular tooth row unit comprises a tooth row base plate and roller teeth; the tooth row base plate axially slides into the mounting groove from the side surface of the mounting groove and is locked in the mounting groove through a fastener; the roller teeth are arranged at intervals in the length direction of the tooth row base plate. According to the roller, the innovative design of the roller frame and the detachable modular tooth row unit is adopted, rapid and independent replacement of the roller teeth is achieved, and the problems that a traditional integral roller is difficult to maintain and high in cost are solved.

The invention discloses an efficient cleaning assembly and method for the inner wall of a deepwater metal deposition device. The efficient cleaning assembly comprises a guiding moving unit, a circumferential rotating unit, an auxiliary moving unit and a cleaning unit. The guide moving unit is arranged on the outer side of the metal deposition device to provide circumferential movement guide; the circumferential rotating unit drives the cleaning unit to rotate around the axis of the device through gear transmission; the auxiliary movement unit is used for driving the cleaning unit to move in the radial direction and the axial direction and providing power and control. The cleaning unit comprises a cleaning polishing head capable of making contact with the inner wall and a telescopic adjusting mechanism of the cleaning polishing head. Through cooperation of circumferential rotation and axial movement, comprehensive covering type automatic cleaning of the inner wall of the metal deposition device is achieved, pollutants such as metal splashes can be effectively removed, the smoothness of an air channel and the uniformity of an air curtain are guaranteed, the device does not need to be disassembled, operation can be automatically completed in an operation gap, and the beneficial effects of being efficient, free of damage and high in integration degree are achieved.

The utility model discloses an under-forest multifunctional movable poultry breeding device, including the henhouse, and the henhouse includes the egg production area, the habitat area, the feeding area and the movable cage, and the henhouse bottom is provided with the bottom plate, and the bottom plate lower surface is provided with a plurality of moving wheels, and the bottom plate top is provided with the mesh, and the mesh and the bottom plate between sliding insertion have the excrement receiving tray, and the habitat area is provided with a plurality of habitat racks, and the habitat area top is provided with the supporting plate, and the supporting plate upper surface is provided with a plurality of egg production nests, and the mesh upper surface of feeding area is provided with the trough and the water tank respectively, and the feeding area one end surface is provided with the sliding door. The utility model discloses through setting up the pull rod and the moving wheel, can realize flexible movement, avoid poultry long -term concentration in the same area activity, can replace the site in time, protect under-forest vegetation and soil structure, maintain the ecological balance, set up the excrement receiving tray, and the excrement receiving tray lets the staff can daily unified collection excrement, avoid excrement pollution breeding environment, and the cleaning process need not frequently enter the henhouse, and the time and energy are saved.

The present application discloses a kind of purification equipment with anti-blocking structure for sewage treatment, and it relates to the technical field of sewage treatment, comprising purification mechanism, conveying mechanism is installed on one side of the purification mechanism, the end of the conveying mechanism is provided with floating mechanism, the surface of the floating mechanism is installed with outer support mechanism, the inside of the floating mechanism is provided with pulse impurity removal mechanism.The purification equipment with anti-blocking structure for sewage treatment blocks large easily clogged impurities from entering the equipment, protecting the purification equipment from being clogged.The counterweight prevents the water suction cylinder from deviating and reduces the purification efficiency.The float can ensure that the water suction cylinder works within a certain depth.Large impurities and flocculent impurities are intercepted outside the equipment.The sand cone plate prevents sand particles from entering the equipment.The spiral groove and auxiliary rotating part accelerate the water suction speed.When impurities accumulate too much, the accumulated impurities are flushed out of the sieve groove by pulse flow.The sand cone plate vibrates to make sand particles fall off.

This utility model relates to an integrated miniaturized air-cooled electronic chassis, including a chassis with a cubic structure open at both the front and rear ends. A front cover assembly and a rear cover assembly are respectively installed on the front and rear open surfaces, and electromagnetic shielding strips are provided in the installation gaps between the chassis and the front and rear cover assemblies. A circuit module is installed inside the chassis, and curved heat dissipation fins are installed on the top and bottom. An air inlet is provided at the rear corresponding to the heat dissipation fins. Air outlets are provided on the top and bottom of the front cover assembly. A fan assembly is installed on the rear cover assembly. This application utilizes the fan assembly, rear cover assembly, chassis, heat dissipation fins, and front cover assembly to form an effective air-cooled heat dissipation channel, which can quickly dissipate the heat generated by the circuit modules inside the chassis, greatly improving the chassis's heat dissipation efficiency. Simultaneously, the electromagnetic shielding strips effectively reduce electromagnetic interference, improve the stability of the electronic equipment inside the chassis, and ensure that the chassis can operate normally in complex electromagnetic environments.

The invention provides a flame-retardant antistatic nylon fiber with a skin-core structure and a preparation method of the flame-retardant antistatic nylon fiber, and belongs to the technical field of nylon fibers. The flame-retardant antistatic nylon fiber comprises an antistatic nylon skin layer and a flame-retardant nylon core layer, the outer surface of the flame-retardant nylon core layer is coated with the antistatic nylon skin layer, the antistatic nylon skin layer comprises a nylon 6 matrix and an antistatic agent, and the antistatic agent is aniline modified zirconium phosphate; wherein the aniline modified zirconium phosphate is obtained by carrying out in-situ polymerization on aniline monomers between stripped zirconium phosphate layers. The flame-retardant antistatic nylon fiber is obtained through sheath-core composite melt spinning. According to the invention, the antistatic agent and the flame retardant are efficiently and stably introduced into the nylon matrix, and the synergistic effect of the antistatic agent and the flame retardant is realized, so that the fiber has better spinnability and mechanical property, and meanwhile, the long-term effect and durability of the function are ensured.

The utility model relates to the technical field of wafer substrate packaging, in particular to a substrate structure and a suction nozzle assembly used for transferring, and mainly relates to a substrate structure which comprises a bottom plate, the bottom plate is provided with a connecting area used for placing a wafer, a connecting column is arranged on the bottom plate and located on the outer side of the connecting area, and the connecting column is used for being connected with a heat dissipation cover. The vertical distance between the connecting columns and the surface of the bottom plate is larger than the height of a wafer. The wafer transfer device has the following effects that the connecting column is arranged at the part where the wafer needs to be placed, the connecting column is subsequently used for connecting the additionally arranged heat dissipation cover body and is used for abutting against the suction nozzle structure in the transfer process so as to limit the downward movement path of the suction nozzle, and the suction nozzle can abut against the end part of the connecting column firstly, so that the suction nozzle is prevented from further moving downwards; therefore, the lower side of the wafer is not extruded, and the wafer structure is protected.

The two-section damping automatic adjusting shock absorber comprises a cross beam plate and a bottom plate, a T-shaped limiting groove is formed in the bottom of the cross beam plate, an adjusting block is connected to the inner side wall of a groove opening of the T-shaped limiting groove in a sliding mode, and two limiting plates sliding on the inner wall of the groove opening of the T-shaped limiting groove are fixedly installed on the outer side wall of the adjusting block. The adjusting block and the bottom plate are connected through two sets of limiting damping shock-absorbing assemblies, and the cross beam plate and the bottom plate are connected through two sets of limiting damping shock-absorbing assemblies. The self-adjusting mechanism can change damping in real time according to vibration, it is ensured that appropriate buffering is provided all the time, on the basis of the two-section type limiting damping shock-proof assembly, the self-adjusting mechanism can automatically adjust damping force according to different vibration intensities and working conditions, vibration energy can be effectively absorbed and dispersed, the self-adjusting mechanism adapts to complex and changeable use scenes, and the self-adjusting mechanism is suitable for being used in various occasions. The limiting mechanism can prevent the adjusting block from sliding excessively, the equipment structure is protected, the shock absorption effect is improved on the whole, stable operation of the equipment is guaranteed, and the service life is prolonged.

The invention discloses a glass fiber composite material metro cleaning type ventilation double-leaf protective air-tight door which comprises a door frame and door leaves. The door frame is fixed to a first civil air defense door frame wall of a cleaning air duct, the door frame serves as a basic support, the door leaves made of double SMC materials in a mold pressing mode are connected through the split hinges, and rotary opening and closing of the door leaves are achieved. A small electric protective air-tight door is arranged on the inner side of the door leaf, a rubber pipe valve is arranged on the outer side of the door leaf, and an oil screen dust filter is arranged between the small electric protective air-tight door and the rubber pipe valve; a lock is further fixed to the inner side surface of the door leaf, a lock hole is formed in the corresponding position of the door frame, and a lock head of the lock is inserted into the lock hole of the door frame. And a positioning jack is arranged at the end part of the outer side of the door leaf. According to the door body, glass fiber composite materials are adopted as door leaf materials, wave absorption is achieved through a rubber pipe valve, protection and sealing are enhanced through a small electric protection sealing door, and clean type light ventilation and protection in wartime are achieved.

The invention discloses a soil conservation device applied to an agricultural photoelectric station and a conservation method, and relates to the technical field of water and soil conservation. The soil conservation device comprises a water collection mechanism and a buffer unit, and the detachable water collection mechanism is arranged at the lower end of a photovoltaic panel and the buffer unit is arranged on the soil surface; rainwater originally dripping along the lower edge of the photovoltaic panel in a concentrated mode can be effectively collected and dispersed, scouring and erosion to soil are remarkably reduced, and the surface structure of cultivated land is protected. According to the device, part of rainwater is guided into the soil below the photovoltaic panel through the recharge channel, the problem of drought under the panel caused by shielding is relieved, and the uniformity of soil moisture distribution is improved. The device is simple in structure and convenient to install and maintain, and the agricultural photoelectric station does not need to be transformed. The conservation method comprises the steps of parameter setting, installation and operation, external energy is not needed, maintenance is easy and convenient, the soil structure is effectively conserved, the cultivated land quality is improved, and meanwhile engineering feasibility and economical efficiency are achieved.

The utility model relates to the technical field of bicycles, in particular to a bicycle front fork with a lock, which comprises a wheel, an axle coaxial with the wheel is arranged at the center of the wheel, a plurality of spokes distributed in a circular array are connected between the axle and the wheel, a rotatable shaft lever coaxial with the axle is inserted between the axle, and a front fork main body is erected at the top end of the wheel. The bottom of the front fork body is in an inverted U shape, the two ends of the bottom of the front fork body are connected with a shaft rod, a lock body arranged on the top of a wheel in a sleeving mode is fixedly installed on one side of the front fork body, the upper half portion of the lock body is in a block shape, the lower half portion of the lock body is in a circular ring shape, and a notch is formed in the bottom end of the circular ring portion of the lock body. According to the bicycle front fork, locking of the front fork body and a wheel can be achieved, when the spokes make contact with the lock rod, the spokes can be prevented from being damaged due to hard collision through the protection assembly, and the problem that the spokes of a traditional lock are prone to being damaged is solved.

A hole filling device for a road coring hole comprises an annular cylinder, an outer cylinder and an inner cylinder, a circular truncated cone is arranged at the bottom of the inner cylinder, and a ball is arranged at the top of the circular truncated cone; the rotary adjusting assembly comprises a plurality of sawtooth rods and a gear column, and the bottom of the gear column makes contact with the ball; the tooth sections of all the sawtooth rods sequentially penetrate through the outer cylinder and the inner cylinder and then are directly meshed with the gear column penetrating through the inner cylinder. The gear column is controlled to rotate so that all the sawtooth rods can be driven to rotate in the forward direction or the reverse direction, all the sawtooth rods are synchronously driven to extend outwards or contract inwards, and therefore the outer ends of all the sawtooth rods abut against the inner wall of the hole to be fixed or not make contact with the hole. The hole protection device is simple in structure and easy to operate, the hole can be rapidly and accurately closed and protected, the hole protection device can be firmly fixed into the hole, meanwhile, the hole structure can be effectively protected, and normal walking is not affected; the operation is safe, the efficiency is high, and the device can be taken out reversely and reused.

This invention relates to the field of vehicle-mounted refrigeration equipment technology, specifically to a double-door locking vehicle-mounted refrigerator and vehicle. It includes a refrigerator shell, a locking transmission structure, a drawer, and an upper flip-top. The locking transmission structure is installed inside the refrigerator shell, with its two ends connected to the drawer and the upper flip-top, respectively. The drawer is slidably connected inside the refrigerator shell, with one end connected to the locking transmission structure and the other end fitted into the side of the refrigerator shell. The upper flip-top is rotatably connected to the top of the refrigerator shell, with one end being a pivot fixed to the top of the refrigerator shell, and the other end being a free end that engages with the locking transmission structure. This invention solves the technical problem in existing double-door refrigerators where the upper flip-top and drawer may open simultaneously, leading to cold air loss or structural damage, and has significant promotional value.

The invention relates to the technical field of transformers, in particular to a dry-type transformer iron core fixing structure. The dry-type transformer iron core fixing structure comprises a fixing assembly, a base assembly and a sliding rail frame. The fixing assembly comprises two fixing sleeve plates located on the front face of the iron core and symmetrically distributed relative to the iron core, and side cover plates are arranged on the left side and the right side of the iron core correspondingly. Base assemblies are arranged at the bottoms of the fixing assemblies; the sliding rail frame comprises an upper rail and a lower rail which are parallel to each other, and the upper rail and the lower rail are connected through a frame. A heat transfer kit is arranged at the top of the iron core and is in sliding connection with the upper track; the base assembly is slidably connected with the lower rail. Stable restraint and vibration isolation of the iron core are achieved through cooperation of multi-point wrapping type fixing and a buffering vibration reduction mechanism, efficient heat dissipation and surface self-cleaning are achieved in combination with directional air cooling and micro-displacement disturbance, and therefore the operation stability of the transformer is comprehensively improved, and the service life of the transformer is comprehensively prolonged.

This invention relates to an anti-cavitation device and method for fluid pipelines. The invention includes a fluid pipeline with a bend; a guide vane assembly disposed within the bend to guide the fluid flow at the bend; wherein the guide vane assembly includes a guide vane body, the guide vane body including guide vanes extending towards the outlet of the bend, the guide vanes being circumferentially arranged around the axis of the guide vane body, so that the fluid forms a controlled pre-swirling flow field before entering the bend outlet. This invention, by installing a guide vane-type device at the bend of the fluid system pipeline, changes the flow direction of the liquid, avoids abrupt changes in liquid velocity at the bend, eliminates boundary layer diversion, increases the absolute pressure inside the bend, and thus improves the cavitation resistance of the entire pipeline system.

The utility model discloses a wheat seed and fertilizer integrated moisture-resistant seeding machine which comprises a box body, supports are fixedly arranged on the two sides of the box body respectively, a bottom plate is installed below the supports, a plurality of fertilizer applying mechanisms are fixedly arranged on the front side of the bottom of the box body, each fertilizer applying mechanism comprises a fertilizer discharging device, and a fertilizer conveying pipe is fixedly arranged at the bottom of each fertilizer discharging device. A plurality of seeding mechanisms are fixedly arranged on the rear side of the bottom of the box body, each seeding mechanism comprises a seed metering device, a seed metering pipe is fixedly arranged at the bottom of each seed metering device, the bottom end of each seed metering pipe penetrates through the bottom plate, and mounting plates are fixedly arranged on the two sides of the bottom of the bottom plate respectively; according to the utility model, multiple functions of fertilization, seeding, shallow rotary tillage, soil covering and the like are integrated, so that the tedious operation of the links of ploughing, fertilization, seeding and the like in the traditional seeding process is reduced, the labor intensity and the operation cost are reduced, the operation efficiency is improved, and the time, manpower and material resources are saved.

The utility model discloses a multistage purification washing device for low-impurity iron phosphate production belongs to iron phosphate production technical field, including washing box, a plurality of baffle are fixed in the washing box, and the washing box lower extreme both sides are provided with the supporting leg, and the supporting leg lower extreme is provided with the damping assembly, and the washing box is provided with the washing assembly inside, the utility model discloses through setting up the washing assembly, the iron phosphate that needs to wash is added in the washing cylinder through the feed hopper, and the washing cylinder is pushed into the washing box inside one side cleaning chamber and is washed by opening electric push rod, after washing, electric push rod contracts, drives the washing cylinder to go up, and then opens motor no.

The utility model provides a kind of anti-freezing type dairy cow drinking trough, belong to dairy cattle breeding technical field, including base, the top of base is equipped with mounting groove, further include: annular water tank, annular water tank is installed in the top of base;Rotary unit, rotary unit is installed in mounting groove;Partition, partition is symmetrically installed in the working end of rotary unit, the bottom outer wall of partition is attached with the groove wall of annular water tank, the inner cavity of partition is divided into drinking water area and cleaning area;Discharge pipe, drainage groove is equipped in the inner side wall of the cleaning section of annular water tank, discharge pipe is installed in drainage groove groove wall;Protective half shell, protective half shell is installed in the top of annular water tank, protective half shell is set around the cleaning area of annular water tank.The utility model is through electric heating, heat preservation, automatic cleaning and automation control etc. design, guarantee winter drinking water not to freeze, water quality is clean, improve breeding efficiency and dairy cow health, structure is reasonable durable.

The utility model discloses a forming air bubble film separating device which comprises a machine frame, the machine frame is provided with a feeding port and a discharging port, a first transmission assembly and a second transmission assembly are arranged in the middle of the machine frame, and the second transmission assembly is arranged on the downstream portion of the first transmission assembly. The bearing frame is arranged outside the position, where the feeding port is formed, of the rack, the bearing frame comprises a bearing part, and an adjusting structure used for adjusting the width of the bearing part and the relative position between the bearing part and the feeding port is further arranged on the bearing frame; during normal operation, the first transmission assembly and the second transmission assembly perform transmission in the same direction, and during bubble film separation, the first transmission assembly and the second transmission assembly are set to perform transmission in opposite directions to separate bubble films. According to the air bubble film separating device, the supporting frame is arranged, so that the width of the machine frame does not need to be larger than that of an air bubble film, meanwhile, the air bubble film is separated in a reverse tearing mode, it can be guaranteed that the air bubble film is completely separated when being torn, and the situation that the air bubble film is not completely separated due to the fact that the width of the air bubble film is too large is avoided.