82results about How to "Replacement saves time and effort" patented technology

The invention discloses a system for replacing the bogie of a magnetic levitation vehicle, which comprises a platform car arranged below the magnetic levitation vehicle, wherein a replacement track section butted with the fixed track section of the magnetic levitation vehicle is mounted on the platform truck; when the bogie is dismounted or mounted, the platform truck drives the replacement track section to separate from or move to a position, where the replacement track section is butted with the fixed track section. By adopting the replacement system for dismounting or mounting the bogie, the process of lifting the truck body by a lifting machine is eliminated, the dismounting and mounting cost and time are reduced, and the dismounting and mounting efficiency of the bogie is improved; the bogie is moved to a position beyond the running line, a new bogie can be mounted for recovering vehicle running, so that the influence on normal running of the vehicles is reduced. The invention further discloses a method for replacing the bogie of the magnetic levitation vehicle.

The invention provides a processing and grinding device for a flange plate of a water heater. The device comprises a base, wherein a housing is welded to one side of the top part of the base through asupport; a driving motor is fixedly mounted on the top part of the housing, and a through pipe is arranged at the bottom part of the housing; a grinding plate is arranged at one end of the through pipe, and a fixing rod is welded to the top part of the grinding plate; one end of the fixing rod extends into the through pipe, and clamping grooves are formed in two sides of the fixing rod; torsionalsprings are fixedly connected to two sides of the inner wall of the through pipe, and a sliding plate is fixedly connected between every two adjacent torsional springs; a slide rail is in sliding connection with the top part of the sliding plate; one end of a clamping rod is clamped to an inner circle of each clamping groove; a moving rod is hinged with the other side of each sliding plate through a rotating shaft; a hinging part is hinged between two moving rods; a trapezoidal chute is in sliding connection with the top part of the hinging part; and a pushing rod is welded to the top part ofthe trapezoidal chute. According to the device, the grinding plate is conveniently dismounted; and the replacing efficiency is improved.

The invention discloses a protective cover plate at the input and output ends of a battery disconnecting unit, comprising a protective cover, wherein one end of the protective cover is rotatably connected with the upper case of a distribution box, and the other end is connected with the lower case of the distribution box through a locking mechanism. The invention also provides a high-voltage distribution box adopting the protective cover plate, comprising a protective cover, an upper case, a lower case and a battery disconnecting unit. The input and output ends of the battery disconnecting unit are arranged at the surface recess of the lower case, and the protective cover covers the input and output ends of the battery disconnecting unit. The invention can enable the user to disassemble and assemble conveniently when installing the input and output point copper bar, and the operation is convenient and saves man-hour.

The invention relates to an ultrahigh pressure triple plunger pump, comprising a machine body, a crank shaft connecting rod type power transmission device and a fluid end generating high pressure. The fluid end comprises a pump body, a pump cylinder, a plunger and a sealing box body. A guide valve, a drainage spring, a discharge valve, a valve seat, an inlet valve and an intake spring are arranged in series between the pump cylinder and the pump body. The pump body is provided with a low-pressure water inlet flow channel and a high-pressure water outlet flow channel. The pump cylinder is provided with a condensed water flow channel. A plunger sleeve is arranged between the pump cylinder and the plunger. A sealing component is arranged between the pump cylinder and the sealing box body. A bearing and a first sealing ring are arranged in the sealing box body. A second sealing ring is arranged between the pump cylinder and the sealing component. Two ends of the valve seat are provided with a third sealing ring and a fourth sealing ring. The pump body is of integral type structure. A group of guide holes with the function of buffering are uniformly distributed at the circumference of the guide valve. The condensed water flow channel is communicated with the low-pressure water inlet flow channel on the pump body. A bracket and sliding block type resetting structure is arranged outside the pump body. As a multi-sealing and resetting structure is adopted, the problems that the sealing of the pump is not good and the assembly and the resetting are difficult are solved.

The invention discloses a rodent pad layer and a preparation method of the rodent pad layer. The pad layer is respectively formed by three layers of materials including a flow guide layer, an absorption core layer and a bottom film from top to bottom through hot gluing, wherein the flow guide layer is polypropylene resin, the absorption core layer is formed by non-woven fabric and fluff pulp mixed absorption powder through laminating pressing, and the bottom film is a degradable polyethylene film. The rodent pad layer is formed by adopting the flow guide layer, the absorption core layer and the bottom film through hot gluing, has the water absorption, ammonia absorption and bacteriostatic effects, and can become a pad layer replacing the existing experiment animal pad materials through simple work procedures of shearing, press forming, sterilization and encapsulation, and in addition, the rodent pad layer has the advantages that the preparation process is simple, and the cost is low.

The invention belongs to a vehicle air purifier, which is composed of a blower fan; and a first structural member component is formed by a pedestal, a base plate, a ring cover loop and the blower fan. A second structural member component is formed by a composite filter component, and a third structural member component is formed by a top cover and a primary filter. An upper transverse plane of the first structural member component and the upper transverse plane of the second structural member component are flattened, a top sealed cover at the lower transverse plane of the periphery of the top cover is capable of capping the upper transverse plane of the first structural member component and the second structural member component through magnetic actuation. The upper transverse plane of the ring cover loop and the upper transverse plane of the blower fan are positioned at same plane; a filter material is folded to a sawtooth annular body by connecting end to end, and the front transverse plane and the rear transverse plane of the filter material are a front ventilation supporting piece and a rear ventilation supporting piece, and an intermediate filter material between the front ventilation supporting piece and the rear ventilation supporting piece is an active carbon mixing adsorption layer. The vehicle air purifier has the advantages of small volume, reasonable filter design, high purifying efficiency, mute performance, and convenient connection, the replacing of the filter material saves labor and saves the time, ventilation is smooth, purifying efficiency is high, security is good, and usage effect is good.

The invention discloses a large-span strut-free energy-saving sunlight greenhouse which comprises a roof frame formed by connecting a plurality of arc-shaped arched beams through a plurality of transverse pull rods, wherein a heat preservation film-coated felt with an upward rough surface is arranged at the upper part of the roof frame; a wrapping film-coated felt is arranged on the heat preservation film-coated felt in a manner that the rough surface of the wrapping film-coated felt is downward; a forwards unfolded front slope heat preservation quilt and a backwards unfolded rear slope heat preservation quilt are arranged on the wrapping film-coated felt; greenhouse films are mounted on two sides of the heat preservation film-coated felt at the upper part of the roof frame through transverse clamping slots and longitudinal film clamping slots; and insect-proof nets and air discharging films are arranged at the front and rear lower parts of the roof frame. The large-span strut-free energy-saving sunlight greenhouse is reasonable in structure, high in heat preservation property and high in ventilating speed, and the heat preservation quilt is difficult to weather and long in service life.

The invention belongs to a household air purifier. The household air purifier consists of a machine body, a weak current plate and a strong current plate, wherein an upper centrifugal wind wheel and alower centrifugal wind wheel are separately driven by an upper motor and a lower motor; an Archimedean spiral upper partition board is arranged at the upper part in the rear space of the machine bodyaround the upper centrifugal wind wheel; space between the Archimedean spiral upper partition board and the periphery of the upper centrifugal wind wheel forms an Archimedean spiral upper air duct; an upper air outlet of the Archimedean spiral upper air duct is located at the upper end of the machine body; an Archimedean spiral lower partition board is arranged at the lower part in the rear spaceof the machine body around the lower centrifugal wind wheel; space between the Archimedean spiral lower partition board and the periphery of the lower centrifugal wind wheel forms an Archimedean spiral lower air duct; and a lower air outlet of the Archimedean spiral lower air duct is located at the side end of the machine body. The household air purifier has the advantages of small size, small air losses, large air output, reasonable filter design, high purifying efficiency, no noise, convenient and rapid filter material change, smooth air supply, high purifying efficiency and great use effect.

The invention relates to the field of fire emergency, and particularly relates to a fire alarm device based on a fire emergency system. The fire alarm device comprises a main body device, a fixing device, a replacing device and a cleaning device, the main body device comprises a fixing plate, an alarm, a temperature sensor and a smoke sensor, and the left side of the top end surface of the fixing plate is fixedly connected with a battery. In the invention, by arranging a first handle, a first threaded shaft, a sliding plate and a suction cup, during use, the first handle is rotated to drive the first threaded shaft to rotate, the first threaded shaft rotates to drive the sliding plate to slide, the sliding plate slides to drive a first hole to move, the first hole, a second hole and the suction cup are staggered, an air inlet channel of the suction cup is closed, and then a fixing plate is pressed on a wall; and the fixing plate can be firmly adsorbed and fixed on a wall under the action of the suction cup, and the fire alarm device is installed so that the installation process of the fire alarm device is simple and convenient, and time and labor are saved.

The invention relates to an eighteen-high mill, and belongs to cold-rolling mills for rolling metal strips. The eighteen-high mill comprises a pair of working rollers and a middle roller, and the middle roller is in contact with the working rollers and used for driving the working roller. The eighteen-high mill is characterized in that, a pair of horizontal supporting rollers, which are in contact with the upper and lower working rollers correspondingly in the side directions, and supported and loaded by the rolling reactive force of the corresponding working rollers, is arranged at each of the inlet side and the outlet side of the mill in the conveying direction of the metal strips, so that each working roller is squeezed in the middle by the middle roller, and the corresponding pair of horizontal supporting rollers to be fixed relatively; each horizontal supporting roller is provided with a side pushing device which supports the corresponding horizontal supporting roller from the operating side to the transmission side in an overall roller body mode in the axial direction; and when the horizontal supporting rollers are in the working positions, the horizontal supporting rollers are in line contact with the working rollers in the axial direction of the working rollers all the time. The eighteen-high mill is more reasonable in relative layout, more purposeful in roller replacement, and more sufficient in lubricating and cooling, and borne force of backing shafts is more uniform.

The invention discloses a supporting device for tyre assembly. The supporting device for tyre assembly comprises a supporting base, a connecting part and a pedestal part, wherein the supporting base comprises a supporting shaft, a reinforcing ring and a clamping jaw support, and the reinforcing ring and the supporting shaft are connected through the clamping jaw support; the connecting part comprises an adjustment bolt, a rotary connecting shaft and a supporting arm, the rotary connecting shaft is matched with the supporting shaft, and the adjustment bolt is connected with the rotary connecting shaft and the first end of the supporting arm; the pedestal part comprises a base, a sliding pedestal and a lead screw, the second end of the supporting arm is fixedly connected with the sliding pedestal, and the sliding pedestal is slidably connected with the base; and the lead screw is connected with the sliding pedestal and the base, the lead screw is fixedly connected with the base, and the lead screw is connected with the sliding pedestal in a threaded mode. By the adoption of the structure, more time and labor can be saved in the tyre replacement process, and tyre replacement can be completed by a driver without the assistance of other people.

The invention discloses a special cold and hot temperature difference assembled and disassembled gear device for replacing a pinion of a large-size ore treatment plant automatic mill. The special cold and hot temperature difference assembled and disassembled gear device comprises a gear cover, heating pipes, adjustment screw rods, supporting rollers, iron stools, a jack, a liquid nitrogen tank, a liquefied gas tank and a hose, wherein the gear cover is divided into two halves; a plurality of heating pipes are uniformly arranged in the cover; the heating pipes and the adjustment screw rods are movably connected; the adjustment screw rods are screwed on the gear cover and are fixed in nuts; the jack for supporting a gear is arranged at the bottom of the gear cover; shaft penetrating holes are formed in the centers of two side plates of the gear cover; hollow cooling shaft sleeves are arranged beside the holes; the cooling shaft sleeves and the supporting rollers are arranged on the two iron stools; nozzles are arranged on the heating pipes and the cooling shaft sleeves; the heating pipes and the cooling shaft sleeves are respectively connected with the liquefied gas tank and the liquid nitrogen tank. The cold and hot temperature difference assembled and disassembled gear device can be used for simultaneously heating the gear and cooling a shaft; when the temperature difference between the gear and the shaft is 200 DEG C, the shaft and the gear are convenient to assemble and disassemble; the cold and hot temperature difference assembled and disassembled gear device has the advantages of saving labor, saving time and lowering the cost along with high maintenance speed.

The invention relates to an automatic cleaning mechanism. The following scheme is provided: the automatic cleaning mechanism comprises a casing, a dust removing cover, an infusion plate, atomizing heads and the photovoltaic panel, wherein a sliding groove and a clamping groove are formed in the left side of the casing, the sliding groove is located at the upper end of the clamping groove, the dustremoving cover is arranged in the sliding groove, a cleaning groove is formed in the bottom end of the dust removing cover, a first motor is arranged at the right end in the cleaning groove, a rotating rod is arranged at the tail end of a motor shaft of the first motor, brushes are wrapped on the outer wall of the rotating rod, the infusion plate is fixed at the top in the cleaning groove, and the atomizing heads are arranged at the bottom end of the infusion plate. The outer wall of the rotating rod is wrapped and connected with the brushes, the brushes are attached to the surface of the photovoltaic panel, the top end inside the cleaning groove is provided with the plurality of groups of atomizing heads, the brushes are driven by a rotating mechanism to rotate so that the brushes can brush the photovoltaic panel, and the cleaning effect is achieved. Meanwhile, a moving mechanism drives the dust removing cover to move based on the photovoltaic panel, and a comprehensive automatic cleaning effect is achieved.

The invention discloses a detachable hobbing device for a roller screen. The detachable hobbing device for the roller screen comprises rollers 2 which are arranged at the two ends of a roller screen support through bearing pedestals 1, split type hobbing teeth 3 which are sequentially connected to the rollers 2, and distance sleeves 4 which are arranged between the adjacent split type hobbing teeth 3. Detachable devices are arranged between the split type hobbing teeth 3 and the rollers 2. When the hobbing teeth need to be replaced, the interconnection of the hobbing teeth, the rollers and the distance sleeves is relieved through the detachable devices. Due to the fact that the split type hobbing teeth 3 are designed, the hobbing teeth needing to be replaced are separated directly so that novel hobbing teeth can be mounted, other distance sleeves and hobbing teeth do not need to be removed from the rollers one by one any more, time and labor are saved in the replacing process, meanwhile, recovery assembly of the hobbing teeth or the distance sleeves and the rollers is avoided, and the problem that the service life is shortened due to assembly errors can be solved.

The invention discloses an unmanned aerial vehicle transporting device capable of being mounted and dismounted conveniently. The unmanned aerial vehicle transporting device capable of being mounted and dismounted conveniently comprises a supporting outer frame and a heat dissipation port, wherein the middle end of the left outer wall of the supporting outer frame is fixedly connected with a lead screw; a rotating bearing is arranged at the lower end of the right outer wall of the supporting outer frame; the lower end of the rotating bearing is fixedly connected with a first telescopic rod; a second telescopic rod is arranged at the lower left end of the first telescopic rod; a box door is arranged on the front wall of a transporting box; the right end of the box door is fixedly connected with a hinge; a clamping block is arranged at the lower end of the box door; a groove is formed in the outer wall of the clamping block; an external thread tooth block is arranged on the outer wall ofthe lower end of a stretching push rod; and an internal thread groove is formed in the inner wall of a buffer plate. According to the unmanned aerial vehicle transporting device capable of being mounted and dismounted conveniently, a fixing block is arranged, the height of the fixing block is made to be consistent with the height of a bottom plate by adjusting the angle between the first telescopic rod and the second telescopic rod, the adhesive force of the fixing block to the ground is improved, and the stability of the device is improved.

The invention discloses an integrally-formed shredder blade and a production method thereof, and belongs to the technical field of blades. The integrally-formed shredder blade comprises a blade body;a cutting edge is arranged on the blade body; and a connection hole is formed in the center of the blade body and is in a n-regular polygon shape, the n is greater than or equal to 5 but smaller thanor equal to 12, and the corners of the n-regular polygon shape are connected in an arc protrusion mode. The connection hole of the integrally-formed shredder blade is in the n-regular polygon shape, nis greater than or equal to 5 but smaller than or equal to 12, the corners of the n-regular polygon shape are connected in the arc protrusion mode, preferably, n is six and the connection hole is inan integral shape, the arc protrusions disperse circumferential extrusion force and torque force towards the sector by optimal design of the connection hole of the blade, abrasion of the corners of the connection hole of the blade is reduced, blade stress uniformity is ensured, and time and labor are saved during replacement.

The invention provides an automobile glass curing liquid PE container blow molding die, and belongs to the technical field of blow molding dies. The automobile glass curing liquid PE container blow molding die aims at solving the problems that in an existing blow molding die, after the inner wall of guide sleeves are seriously abraded, the abrasion cannot be found in time by people, the alignmentprecision of two dies is affected, and the dies are further abraded. The automobile glass curing liquid PE container blow molding die comprises a shell, a first die and a second die are installed inside the shell, and two T-shaped sliding blocks are symmetrically arranged on the left end face and the right end face of each of the first die and the second die up and down. The guide sleeves are filled with white powder, when the first die and the second die are closed, four guide columns can be inserted into the four guide sleeves, when the inner walls of the guide sleeves are seriously abraded,the white powder filled in the guide sleeves can leak out of abraded seals so that the white powder can be found by people in time, therefore, the alignment precision of the first die and the seconddie is effectively guaranteed, and the blow molding die cannot be abraded.

The invention provides a refrigerator door with a replaceable door panel. The refrigerator door with the replaceable door panel comprises a foaming door body and a door panel body which is matched with the foaming door body and detachably connected with the foaming door body. The foaming door body comprises a foaming main body and a hooking part embedded from the front surface of the foaming main body; the door panel body comprises a door surface and a hook which is arranged on the rear surface of the door surface and is matched with the hooking part; the hooking part comprises a first groove which is formed by sinking from the front surface of the foaming main body to the interior of the foaming main body, and a first sliding groove which is obliquely formed and a second sliding groove which is connected with the first sliding groove are formed in the first groove; and the hook comprises a first sliding rod and a second sliding rod which are matched with the first sliding groove and the second sliding groove respectively. According to the refrigerator door with the replaceable door panel provided by the invention, through cooperation of the sliding grooves and the sliding rods, replacement of the door panel becomes simple and reliable, and the replacement cost is saved.

The invention relates to a novel high-precision U-shaped bending die. The bending die comprises an upper die base (1), a lower die base (2), a die shank (3), a plurality of guide pillars (4), a male die (5), a female die (6) and a discharge mechanism, wherein the lower ends of the guide pillars (4) are fixed to the lower die base (2) and perpendicular to the end face of the lower die base (2), the upper portions of the guide pillars (4) are matched with the upper die base (1), the male die (5) is fixedly installed in the middle of the lower side of a male die fixing plate (7), the die shank (3) penetrates through the upper die base (1) to be fixed to the male die (5) and is coaxial with the male die (5), the female die (6) is fixed above the lower die base (2) and aligns with the male die (5), and the discharge mechanism comprises a fixed discharge plate (9), a discharge bolt (13) and a discharge block (14). The bending die has the advantages that the bending die is long in service life, low in maintenance cost and high in bending and forming precision, and workpieces can be taken out easily.

The invention discloses a skylight for a data center machine room. Bearing mechanisms are installed on the upper surfaces of two machine cabinet front wall plates; installation holes are symmetricallyformed in the middle parts of the inner sides of the bearing mechanisms; corresponding locking devices are arranged at one ends of the bearing mechanisms and glass brackets; the glass brackets are connected with the installation holes through connecting columns so as to realize the rotation of the glass brackets; a glass plate is fixed between the two glass brackets; and rotation limiting devicesare arranged on the bearing mechanisms in the rotation direction of the glass plate. The skylight for the data center machine room is simple in structure, light in overall weight, and more convenientto assemble and disassemble; the left glass bracket, the right glass bracket, a left bracket and a right bracket are positioned on the same horizontal plane, and the upper part of the skylight is thewhole glass plate, so that the visible area is maximized; and when a certain skylight is overhauled, the single skylight can be opened and closed only by carrying out power-off processing on one electromagnetic lock body through a button.

The invention discloses a pillow type brake pad and an application method thereof. The pillow type brake pad comprises a base, a brake pad body, anti-skid grooves, heat dissipating holes, a mounting groove, a limit groove and movable blocks. The mounting groove is formed in the upper portion of the base. The brake pad body is mounted in the mounting groove and fixed to the mounting groove throughthe limit groove. The limit groove is formed in a groove opening in the upper portion of the mounting groove. The anti-skid grooves are formed in the upper surface of the brake pad body. The heat dissipating holes are formed in the brake pad body. Mounting cavities are formed in the lower portion of the base. According to the pillow type brake pad and the application method thereof, through the arranged base, the brake pad body, the anti-skid grooves, the heat dissipating holes, the mounting groove, the limit groove and the movable block, the problems that a brake pad needs to be replaced on the whole after being abraded, materials are greatly wasted, replacing consumes time and labor, in addition, the brake pad makes direct rigid contact with a friction plate, the brake pad is abraded largely, and the service life is short are solved.

The invention relates to the technical field of cutters, and discloses an inner reamer and a machining method of a water pump circulating pipe. The inner reamer comprises a reamer bar, wherein a circular deep groove is formed in the upper surface of the reamer bar, a plurality of T-shaped grooves uniformly distributed are formed in the outer wall of the reamer bar, arc-shaped plates are movably connected to the groove walls of the T-shaped grooves, the outer walls of the arc-shaped plates are fixedly connected with blades, the outer wall of the reamer bar is fixedly sleeved with a limiting ring, threads are formed in the outer wall of the reamer bar, the outer wall of the reamer bar is in threaded connection with a fixing nut, the top end of the outer wall of the reamer bar is movably connected with a connecting mechanism, and the top end of the connecting mechanism is fixedly connected with a cooling mechanism. According to the inner reamer and the machining method of the water pump circulating pipe, only the damaged parts need to be replaced when the blades are damaged, the whole inner reamer does not need to be replaced, so that the unnecessary waste is avoided, and meanwhile, the unnecessary loss is avoided; and the replacement efficiency of the inner reamer can be effectively improved, the replacement process is time-saving and labor-saving, and the service life of the inner reamer can be effectively guaranteed.

A limiting device for a hammer mill and facilitating hammer replacement comprises hammer frames, hammer shafts, hammers and a limiting body. The limiting body is provided with a plurality of limitingrod members, each limiting rod member is formed by a plurality of limiting rod member units, and each limiting rod member unit is provided with a plurality of non-tail end limiting shafts, a tail endlimiting shaft and a plurality of pairs of limiting discs. The outer surface of each non-tail end limiting shaft and the outer surface of the tail end limiting shaft are respectively provided with theplurality of pair of limiting discs. One end of each non-tail end limiting shaft is provided with a shaft head, and the other end is provided with a shaft hole. Both ends of the tail end limiting shaft are provided with a shaft head. Each hammer frame is provided with a plurality of positioning holes. A combined connection structure of the limiting rod member units is provided, and the inner protruding end of each hammer is located in a compartment between the corresponding pair of limiting discs. The positions of the hammers can be limited without the need of a hammer spacer. When the hammers are replaced, the limiting device does not need to be removed. The replacement of the hammers is more convenient, the hammer replacement time is reduced, and the workload is reduced.

The invention belongs to the technical field of copper pipe production, particularly relates to a clamping assembly for producing a copper pipe, and aims at solving the problems that the clamping of the copper pipe is not stable enough and a clamp cannot be fixed. According to the scheme, the clamping assembly comprises a bottom plate, a box body and sliding plates, wherein the box body is horizontally welded on one side of the bottom plate. the two sliding plates are both horizontally connected to the top of the bottom plate in a sliding mode, a synchronous moving mechanism used for synchronously moving the two sliding plates is arranged at the top of the bottom plate, the tops of the two sliding plates are completely the same in structure and are symmetrically arranged, a top plate is horizontally connected at the tops of the sliding plates through bolts, a hollow plate is vertically welded to the center of the top of the top plate, a clamp is slidably connected to one side of the hollow plate, and T-shaped blocks are vertically welded to the two ends of the side, close to the hollow plate, of the clamp. According to the clamping assembly, the copper pipe is prevented from rotating, so that the quality of the copper pipe during production is improved.

The invention discloses an air-conditioning convenient for elder or children to use; the air-conditioning comprises an air-conditioning indoor set, a main remote controller and an auxiliary remote controller; a storage module, a control module, an identification module, a loudspeaker module and a display module are arranged in the air-conditioning indoor set; the storage module, the identification module, the loudspeaker module and the display module are respectively connected with the control module; the main remote controller is used for remotely controlling air-conditioning operation parameters; the air-conditioning present regulated parameters are stored in the storage module; the control module can respectively control the air-conditioning indoor set operation, the loudspeaker module operation and display module display; the identification module is used for identifying an auxiliary remote controller signal and a main remote controller signal; the auxiliary remote controller is provided with a power button, a temperature rise button, and a cool down button; the power button is used for controlling the air-conditioning indoor set to open and close; the temperature rise button and the cool down button are respectively used for controlling the indoor set temperature set value to be up and down; the display module is used for displaying running state and partial operation parameters.

The invention discloses a stacked twisting mold. The stacked twisting mold comprises a basic mold which is provided with a barrel-shaped basic mold body, a basic mold twisting channel is formed in the basic mold body, one side of the basic mold twisting channel is provided with a basic mold twisting inlet, the other side of the basic mold twisting channel is provided with a basic mold twisting outlet, and the portion, located on one side of the basic mold twisting outlet, of the basic mold body is provided with a basic mold circumferential outer edge perpendicularly stretching towards the outer side of the basic mold body; the stacked twisting mold further comprises a sub-mold which is provided with a barrel-shaped sub-mold body, a sub-mold twisting channel is formed in the sub-mold body, one side of the sub-mold twisting channel is provided with a sub-mold twisting inlet, the other side of the sub-mold twisting channel is provided with a sub-mold twisting outlet, and the portion, located on one side of the sub-mold twisting outlet, of the sub-mold body is provided with a sub-mold circumferential outer edge perpendicularly stretching towards the outer side of the sub-mold body; when the sub-mold is placed in the basic mold, the outer diameter of the sub-mold body is matched with the inner diameter of the basic mold body, the sub-mold circumferential outer edge is exactly located on the basic mold circumferential outer edge, and the basic mold circumferential outer edge is provided with a locking mechanism capable of locking the sub-mold circumferential outer edge. The stacked twisting mold is convenient to replace and capable of saving time and labor.

The invention belongs to the technical field of aluminum alloy machining and aims to solve the problems that existing grinding equipment is difficult to fix and grind a cylinder aluminum alloy, inconvenient to use, low in grinding efficiency, high in labor cost, difficult to ensure that the surface of the cylinder aluminum alloy is ground flatly and poor in grinding effect. The grinding equipment comprises a mounting plate, four sets of driving rollers are mounted on the mounting plate and connected through detachable grinding belts, and four sets of rotary positioning assemblies are arranged on the mounting plate; cylinder aluminum alloy in four directions is fixed through the rotary positioning assembly, the detachable grinding belt and the peripheral faces of the four sets of cylinder aluminum alloy generate relative movement, synchronous grinding of the four sets of cylinder aluminum alloy is achieved, the grinding efficiency and the grinding effect are improved, and the practicability is high. And the direction adjusting motor enables the cylinder aluminum alloy to rotate so as to achieve conversion of the grinding portion, and the whole peripheral face of the cylinder aluminum alloy can be leveled conveniently.

The invention belongs to the technical field of industrial wastewater treatment, aims at solving the problems that existing environment-friendly purification equipment only filters wastewater through a filter screen and cannot effectively disinfect the wastewater, and the impact force generated when the wastewater falls easily causes damage to the filter screen, and particularly relates to environment-friendly water purification equipment for industrial production. The equipment comprises an equipment shell, a first filtering inclined table and a second filtering inclined table are mounted on the two sides of the interior of the first cavity, and drainage cavities are formed in the first filtering inclined table and the second filtering inclined table; and the horizontal part of the L-shaped pipe is communicated with the water collecting cavity, the vertical part of the L-shaped pipe is provided with a connecting pipe, the connecting pipe is communicated with the drainage cavity, a limiting protrusion is fixedly installed on the activated carbon adsorption plate, the locking mechanism fixes the limiting protrusion, and the top of the automatic telescopic mechanism is connected with the water carrying plate. According to the invention, not only is the damage to the filter screen caused by the impact force of wastewater reduced, but also the wastewater can be effectively filtered, disinfected and purified, the disinfected and purified wastewater can be automatically discharged step by step, and the functions are diversified.

The invention belongs to the technical field of solar water heaters, and discloses a pipeline emptying anti-freezing type solar water heater. The pipeline emptying anti-freezing type solar water heater comprises a support, wherein a water tank is arranged at the top end of the support; one side of the lower surface wall of the water tank is connected with water outlet pipes at equal intervals through heat collecting pipes; fixing plates are symmetrically fixed to the two ends of the outer surface wall of the water tank; third inserting grooves are formed in the outer surface walls of the fixing plates at equal intervals; a protection assembly is arranged outside the water tank, and comprises a first arc-shaped plate and a second arc-shaped plate; and inserting blocks matched with the thirdinserting grooves are connected to the inner walls of the first arc-shaped plate and the second arc-shaped plate at equal intervals. The protection assembly composed of the first arc-shaped plate, the second arc-shaped plate, a first protection rod and a second protection rod is additionally arranged outside the water tank, when the water tank is collided, the first protection rod and the secondprotection rod blocking the outer portion of the water tank are in contact and impact, the water tank can be effectively prevented from being sunken and damaged, and the service life of the water tankis prolonged.

Provided is a grass mowing head which is composed of a thread clamping seat, a spiral cover and grass mowing ropes. The thread clamping seat is composed of multiple concentric arc columns of which the bottoms are connected, a gap exists between every two adjacent arc columns to form a clamping groove, the grass mowing ropes are put in the clamping groove, the spiral cover covers the thread clamping seat to be downwards screwed to tightly wrap the arc columns, the distance between every two gaps of the corresponding arc columns is reduced, the grass mowing ropes are fixed in an extruded mode, and the top of the spiral cover is provided with a screw hole connected with a grass mower. The grass mowing head is made of plastic and is small in mass, high in hardness and low in cost; by means of reasonable design, an outdated double-thread grass mowing head is changed into a multi-thread grass mowing head, long-time continuous grass mowing can be achieved, operation is easy and convenient, time and labor are saved during the replacing process, and the grass mowing head is worthy of vigorous popularization.