49results about How to "Raise the level" patented technology

Disclosed is a method for guaranteeing high separation precision of a coal slime heavy medium hydrocyclone. A shunt is cancelled in a device which is utilized in the method; a minus sieve chute of a clean coal medium discharge curved screen and a first section of a minus sieve chute of a clean coal medium drainage screen are respectively connected with a pipeline; one ends of the pipelines are inserted into a slime qualified medium barrel which is provided with an overflow pipe; all or partial minus sieve qualified heavy suspension liquid of the clean coal medium discharge curved screen and the first section of the minus sieve chute of the clean coal medium drainage screen enters into the slime qualified medium barrel; and heavy suspension liquid inside the slime qualified medium barrel flows into a raw coal qualified medium barrel after a liquid level of the slime qualified medium barrel is increased to a certain height. The method for guaranteeing the high separation precision of the coal slime heavy medium hydrocyclone has the advantages of enabling the shunt to be cancelled, saving equipment investment, simplifying the operation process, avoiding unstable liquid level even emptying of the slime qualified medium barrel due to improper manual operation, being capable of providing stable working conditions for the coal slime heavy medium hydrocyclone and guaranteeing the high separation precision of the coal slime heavy medium hydrocyclone.

The invention discloses a metal thin-wall composite tube impacting and hydraulic bulging device and method, and relates to the technical field of hydraulic bulging of metal tubes. For solving the technical problems that in the prior art, the structure of lead screws is complicated, threads, a bearing supporting step and the like need to be arranged, the left screw and the right screw further need threads with opposite directions of turning and are connected by a threaded sleeve, the processing cost is increased, and the assembling cost is also increased; a dovetail groove needs to be formed in a sliding seat, a horizontal sliding block needs to be mounted, and the processing cost and the maintenance cost are further increased; and operation is complicated and the like, a lead screw lifter which is mature in markets is used as a feeding unit, a large number of design, manufacturing and assembling costs are reduced, the pressure in a composite tube is adjusted automatically by a liquid injector, the step of manual liquid replenishment is omitted, the design, production, manufacturing and use costs are greatly reduced, and the metal thin-wall composite tube impacting and hydraulic bulging method has simple steps, and is high in efficiency and convenient to operate and control.

The invention discloses portable electronic equipment and a connecting device thereof. The electronic equipment and the connecting device can unfold a display part and an input part, are convenient to operate, effectively increase the height of a display screen of the display part, effectively meet the visual requirement for looking at the front horizontally of eyes, effectively avoid or relieve the problem that a user lowers the head and bends down for a long time, protect body health of users, and realize the full use of a panel of the input part. The electronic equipment comprises the display part and the input part, and is characterized by comprising a connecting device and a closing device, wherein each of the two ends of the connecting device is provided with an unfolded connecting piece connected with the display part / the input part; the closing device is used for maintaining / removing the closing state of the display part and the input part; a supporting point of the connecting device and the display part is positioned under a horizontal central line of the display part (under the unfolded state); the connecting device is provided with a lifting structure; and a certain rotary damper is arranged between the connecting device and the display part / the input part to enable the portable electronic equipment to keep stable form under the unfolded state.

The invention discloses a Feiteng processor-based all-in-one machine comprising a machine case. A main board, a hard disk, a liquid crystal display screen and a biological recognition module, whereinthe Feiteng processor, an EC control chip, an internal memory and a display card are arranged on the main board; the liquid crystal display screen is embedded on a front panel of the machine case andin a connection with the display card to display a user interface; and the biological recognition module recognizes a user in a biological way to determine whether an operation system is logged in. Compared with an x86 platform computer, the all-in-one machine employs the domestic Feiteng processor being automatic and controllable; with cooperation with domestic systems and domestic UEFI firmware,a potential danger of back door of an office computer can be solved; more confidentiality ways and higher levels are provided; besides, with the biological recognition module, more accurate limit isprovided for user authority through user identity biological verification; and meanwhile, an existing confidential scheme can be compatible.

The invention discloses a construction spreading foundation adaptive to a filled ground settlement and a construction method. The construction spreading foundation comprises an overhanging structure on the upper portion of a pillar foundation, the pillar foundation, a construction spreading foundation body, a cushion block layer and a basement cushion layer. The method for heightening the settled construction spreading foundation includes the following steps: 1) excavating filling until to the basement cushion layer; 2) horizontally arranging an ejecting beam under the overhanging structure on the upper portion of the pillar foundation; 3) placing jacks under the portions close to two ends of the ejecting beam; 4) ejecting the ejecting beam through the jacks; 5) filling cushion blocks between the construction spreading foundation body and the basement cushion layer under the construction spreading foundation body; and 6) finally, demounting the jacks and the ejecting beam, and placing the filling back. The construction spreading foundation is reasonable in structure, convenient to construct, safe and reliable, can effectively avoid bad influence to foundation construction and normal use of architectural structures caused by foundation settlement, and has good economic benefit and time benefit in engineering construction, and the height of the foundation can be adjusted at any time according to requirements.

The invention provides a display substrate and a manufacturing method thereof and a display device, and belongs to the technical field of display. The display substrate comprises an underlayment substrate, a driving circuit layer located on the underlayment substrate, a flat layer covering the driving circuit layer, and a display electrode positioned on the flat layer. The display electrode is inlap joint with an output electrode of the driving circuit layer through a via hole penetrating through the flat layer. The output electrode comprises a first part in contact with the display electrodeand a second part except the first part. The display substrate further comprises a spacer structure located between the underlayment substrate and the first part, and the orthographic projection of the first part on the underlayment substrate is located in the orthographic projection of the spacer structure on the underlayment substrate. According to the technical scheme, the lap joint conditionof the display electrode and the output electrode can be improved, and the yield of the display substrate can be increased.

The invention relates to the technical field of cordyceps sinensis cultivation, in particular to a method cultivating cordyceps sinensis in suspension mode. The method specifically comprises first using relative containers to generally cultivate colored sinensis growing cultivation media with hypha growing a base material; arranging a cultivation room of 60-80m<3> to be favorable for controlling environment temperature and humidity, and simultaneously arranging a ventilation window for air convection to achieve ventilation or sealing of the cultivation room at any time; then additionally hanging cultivation frames, and fixing a plurality of ropes for hanging the sinensis growing cultivation media on the cultivation frames; hanging the sinensis growing cultivation media the cultivation room in cultivation all the around; and avoiding cultivation frames and cultivation containers in cultivation processes, and fully utilizing space of the cultivation room. The method has excellent advantages and is suitable for factorization, intensification and large-scale high-efficiency production of manual cultivation of the cordyceps sinensis.

The invention discloses a small barbecue range which comprises a support frame and an oven, wherein the oven is arranged on the support frame and comprises an upper cover, a lower shell, a barbecue wire mesh and a charcoal tray; the upper cover is articulated with the lower shell; a barbecue wire mesh placement plate is arranged on the lower shell; the barbecue wire mesh is arranged on the barbecue wire mesh placement plate; an opening is formed in the side surface of the lower shell; the charcoal tray penetrates through the opening and is arranged in the lower shell; the charcoal tray is composed of a charcoal mesh and an ash collecting tray; one side wall of the ash collecting tray is arranged into a side cover structure; the side cover is matched with the opening; a charcoal tray handle is arranged at the outer side of the side cover; the charcoal mesh is arranged in the ash collecting tray, and is in a structure of transversely and vertically welding a plurality of metal strips alternately; two metal strips are provided with protruding ends; the ash collecting tray is connected with the side cover; through holes matched with the protruding ends are formed in the side wall, opposite to the side cover, of the ash collecting tray; a charcoal mesh clamping groove is formed in the inner side of the side cover; the charcoal mesh is clamped in the charcoal mesh clamping groove. The small barbecue range has the advantages of small size and simple structure; due to the design of the charcoal mesh clamping groove, the charcoal tray is relatively convenient and fast to use.

The invention discloses a method for purifying an industrial aqueous hydrogen peroxide solution. Organic matters in an industrial hydrogen peroxide solution are removed by using solid waste coal ash through modified coal ash adsorption, coupling and reduced-pressure distillation processes, so that total organic carbon in the industrial aqueous hydrogen peroxide solution produced by using an anthraquinone process can be removed at the removal rate of more than 40%, not only is the grade of the hydrogen peroxide solution increased, but also the additional value of hydrogen peroxide is increased, and the application range of industrial hydrogen peroxide is widened. The method has the advantages of simple process, low cost and environment friendliness, and is used for further recycling solid wastes so as to be very suitable for industrial production.

The invention discloses a reaction device capable of emulsifying and regulating the temperature. The reaction device comprises a water bath tank and an emulsifying tank, wherein the water bath tank comprises a hot water pot and a water bath tank body; the horizontal height of the hot water pot is greater than the height of the water bath tank, and a first connecting pipe which is used for communicating the hot water pot and the water bath tank is arranged between the upper parts of the hot water pot and the water bath tank; a second connecting pipe which is used for communicating the hot water pot and the water bath tank is arranged between the lower parts of the hot water pot and the water bath tank; the second connecting pipe is internally provided with a water pump which is used for pumping a fluid from the water bath tank to the hot water pot. According to the reaction device, the defects that an existing water bath emulsifying tank can only be used for automatically controlling the water temperature, and when an automatic temperature control system is damaged, the temperature cannot be regulated are overcome, and the invention provides the reaction device capable of emulsifying and regulating the temperature, which can be used for regulating the temperature of water bath in the water bath tank.

The invention discloses a strawberry picking machine which comprises a base plate, a hand-held push rod arranged at the longitudinal rear end of the base plate, walking rolling wheels arranged at thebottom of the base plate and picking mechanisms arranged on two transverse sides of the base plate. Each picking mechanism comprises an upper oblique plate obliquely fixed to the base plate, a strawberry assembly installed on the upper oblique plate and a strawberry picking assembly for determining strawberry picking or not according to strawberry colors. The strawberry picking machine is small and exquisite in structure and good in portable capability and can meet the use demand in a narrow muddy environment on the edge of a field. In addition, a traditional mechanism strawberry picking thinking way is changed, a mechanical arm is replaced by a ratchet wheel and a conveying belt, the complexity of a control algorithm is greatly reduced, and the stability of a system is improved.

The invention relates to a circuit board edging system. The circuit board edging system comprises a rack, a conveying device, a first edging device, a first rotating device, a second edging device, a second rotating device, a third edging device, a third rotating device and a fourth edging device which are arranged on an upper-layer rack and a lower-layer rack in sequence according to production processes, wherein the conveying device is arranged on the rack; the rack comprises the upper-layer rack and the lower-layer rack; a moving device is arranged at the connecting part of the upper-layer rack and the lower-layer rack; the moving device comprises a moving platform, a sliding block and a guide rod; the moving platform is arranged on the sliding block; the sliding block slides on the guide rod; and the two ends of the guide rod are arranged on the upper-layer rack and the lower-layer rack separately. The circuit board edging system has the advantages as follows: the degree of automation is high, and space resources are saved.

The invention discloses an ambient air quality indicating landscape tree. The ambient air quality indicating landscape tree comprises sensors, a signal amplifier, a landscape tree and an air collecting device, wherein the sensors are used for detecting at least one type of index data of ambient air; the signal amplifier is in signal connection with the sensors and amplifies signals transmitted by the sensors; the landscape tree displays corresponding index states of ambient air quality through one or more of digits, graphs, symbols, colors, lamplight and darkness degrees under the drive of the signals amplified by the signal amplifier; the air collecting device comprises air collecting pipes, air inlets, exhaust ports and fan devices, the air inlets and the exhaust ports are communicated with the air collecting pipes, and the fan devices drive air to enter the air collecting pipes from the air inlets and to be discharged from the exhaust ports; the sensors are mounted in the air collecting pipes. Outside air is accelerated by the air collecting device and is guided to pass through the sensors, so that data detected by the sensors are more accurate, the efficiency is higher, the air quality index states are directly and clearly shown to the public through the landscape tree, and the air quality states are conveniently and rapidly transmitted.

The invention relates to a tilting charge and discharge type reducing furnace and a reducing method thereof. The reducing furnace comprises a furnace body, a furnace tank and a furnace body tilting mechanism, wherein a combustion system is arranged in the furnace body for providing high temperature required for a reducing process; the reducing tank is arranged in the furnace body in a penetrating manner, and two ends thereof extend out of the furnace body, a charging hole is formed at one end of the reducing tank, and a dreg outlet is formed at the other end of the reducing tank; the furnace body tilting mechanism comprises a rotating shaft as a furnace body rotating and moving fulcrum and a lifting mechanism for driving the furnace body to rotate around the rotating shaft; and the rotating shaft is horizontally arranged; and the reducing tank at least can rotate between a horizontal position and an inclined position back and forth. The reducing tank of the tilting charge and discharge type reducing furnace is positioned in the horizontal position during the heating and reducing process and also positioned in the inclined position in a charging and dreg discharging process; and dregs can be automatically discharged by utilizing gravity, so that the production speed is improved, and the labor amount is reduced, thereby facilitating mechanical production.

The invention provides a preparation and production process of a modified polypropylene flat-wall reinforced corrugated pipe. The preparation and production process comprises the following steps of preparing an outer layer material in proportion; adding a flame retardant, a coloring agent and high-temperature-resistant fuel after preliminary mixing is finished, and performing stirring at a high speed for 10-15 minutes to obtain an outer layer mixture; preparing an inner layer material in proportion, putting the inner layer material into a stirrer, and performing high-temperature melting and stirring to obtain an inner layer mixture; stacking the inner layer mixture and the outer layer mixture in proportion, performing heating and plasticizing after stacking, and conveying to a high-pressure extruder to extrude, so as to obtain a corrugated pipe prefabricated product; rapidly placing the corrugated pipe prefabricated product in a shaping mold, and performing rapid shaping and flaring; after shaping and flaring of the corrugated pipe prefabricated product, performing demolding, and spraying and cooling the surface after demolding; and after a cooled corrugated pipe is subjected to fixed-ratio cutting in proportion, mounting a connecting piece, and making the modified polypropylene flat-wall reinforced corrugated pipe. According to the process, the limitation of an existing corrugated pipe functional additive on the corrugated pipe transportation range is effectively avoided, the application range of the corrugated pipe is widened, and the structural strength of the corrugatedpipe is improved.

The invention relates to the field of electric equipment, in particular to a heat-dissipating power distribution cabinet for the electric equipment and aims at solving the technical problem of providing the heat-dissipating power distribution cabinet for the electric equipment, which can be convenient to move and full in heat dissipation. The heat-dissipating power distribution cabinet for the electric equipment comprises an electric box, mounting racks, first hinged frames, an open and close frame, first bearing blocks, first gears and the like, wherein a wire inlet communicating with a powersupply line is formed in the top in the electric box; the mounting racks are fixedly connected with an inner wall of the electric box in sequence; mounting holes connected with the electric equipmentare uniformly formed in each mounting rack; heat dissipation holes for heat dissipation of the electric equipment are uniformly formed in the inner wall of the electric box; the first hinged frames are fixedly connected with an outer wall of the electric box; the open and close frame is hinged with the first hinged frames; a first mounting groove is formed in an inner side wall of the open and close frame; and a second mounting groove is formed in the other inner side wall. The heat-dissipating power distribution cabinet for the electric equipment has the effects of being convenient to move and full in heat dissipation.

The invention provides a voltage-stabilizing anti-creeping silicon carbide diode. The voltage-stabilizing anti-creeping silicon carbide diode comprises cathode metal, a silicon carbide substrate, a silicon carbide epitaxial layer, anode metal and a SiO2 layer. A first lug boss and a second lug boss are formed on the silicon carbide substrate, a first groove is formed in the first lug boss, and a second groove is formed in the second lug boss; a first Schottky barrier is formed between the lower end of the first contact part and the silicon carbide epitaxial layer, a second Schottky barrier is formed at the junction of the second contact part and the first groove, and a third Schottky barrier is formed at the junction of the third contact part and the second groove; the distance between the first Schottky barrier and the silicon carbide epitaxial layer is a, the distance between the bottom of the second Schottky barrier and the silicon carbide epitaxial layer is b, the distance between the bottom of the third Schottky barrier and the silicon carbide epitaxial layer is c, and a > b = c. The silicon carbide diode provided by the invention has excellent voltage-stabilizing and anti-creeping characteristics.

The invention discloses a bagged material unstacker which comprises a movable frame, the movable frame comprises an operation platform and supporting legs which are arranged at the two ends of the operation platform and extend downwards, and the operation platform is provided with an XYZ-axis moving mechanism and an unstacking clamping jaw installed on the XYZ-axis moving mechanism; and the discharging mechanism is in butt joint with the movable frame, and the discharging mechanism is provided with a discharging chute. According to the unstacking device, single-bag materials can be taken out through three-dimensional movement of the unstacking clamping jaw, after being taken out, the single-bag materials can be conveyed to the discharging chute to automatically slide down, workers do not need to climb to a high position for carrying, the unstacking clamping jaw does not need to downwards run for a long distance to put down bagged materials, and the unstacking efficiency can be improved.

The invention discloses an automatic film removing method. A plastic film of a packaging bottle is removed through conveying of a whole box of materials, positioning of the materials, film cutting, upper film removing, bottle moving and lower film removing, and the problem that the materials adhere to the corner of a packaging material is solved by cutting the plastic film along the edge; a whole column of bottles are sequentially moved onto a conveying belt through the bottle moving procedure, so that the technical problem that the bottles are overturned or damaged due to the fact that the bottles are pushed in a whole disk is solved; and the upper and lower films are taken away through sucking disks arranged on positioning pieces, so that automatic production is achieved.

The invention relates to a hanging type sliding rail sliding door which comprises door posts and a door beam arranged on the door posts. A linear rail is arranged on the door beam in the extending direction of the door beam. The direction of an opening of a rail groove of the linear rail is horizontal. The side walls of the rail groove incline towards the exterior of the rail groove. The hanging type sliding rail sliding door further comprises a door leaf. A sliding assembly is arranged on the door leaf and comprises a pull rod of an L-shaped structure. The horizontal end of the pull rod is fixedly arranged at the top of the door leaf. A first supporting shaft is vertically arranged at the horizontal end. The first supporting shaft is sleeved with a first idler wheel which is rotatably matched with the first supporting shaft. A second supporting shaft is horizontally arranged at the vertical end of the pull rod. The second supporting shaft is sleeved with a second idler wheel which is rotatably matched with the second supporting shaft. According to the hanging type sliding rail sliding door, a rail does not need to be pre-buried in the ground, time is saved, the cost is reduced, the situation that the door leaf deviates leftwards or rightwards in the moving process is avoided, and the door leaf is moved more easily.

The invention discloses a multifunctional bottle taking manipulator. The multifunctional bottle taking manipulator comprises a sizing rod, an air tube and a cylinder, wherein a rod body of the sizingrod is inserted in and seals the bottle opening of a bottle blank in a sealing mold; a sizing rod cavity is formed in the rod body; a sizing rod cavity mounting opening is formed in the bottom of thesizing rod cavity; a sizing rod cavity air inlet and a sizing rod cavity air outlet are formed in the upper portion of the sizing rod cavity; the air tube is inserted in the sizing rod cavity throughthe sizing rod cavity mounting opening, and communicates with the sizing rod cavity air inlet; compressed air is guided into the mold to blow up and shape the bottle blank; an air outlet gap is formedbetween the inner wall of the sizing rod cavity and the outer wall of the air tube; the air outlet gap communicates with the sizing rod cavity air outlet; the sizing rod cavity air outlet is connected with an air pressure detector; and the cylinder drives the sizing rod and the air tube to integrally and synchronously move in the axial direction in a reciprocating manner. During bottle blowing bythe air tube, the sizing rod is inserted in the bottle opening, and by cooperation of air circulation formed by the air tube and the air outlet gap and the air pressure detector, functions of bottleblowing, sizing, cooling and product leakage measurement are integrated.

The invention discloses an anti-theft prepayment type low-voltage distribution box, and the box comprises a distribution box assembly; a safety assembly is arranged on the side portion of the distribution box assembly, an anti-theft assembly is arranged in the distribution box assembly, the safety assembly is used for carrying out safety protection on the distribution box assembly, wherein the anti-theft assembly is used for carrying out anti-theft protection on the distribution box assembly. According to the scheme, through the arrangement of the first door lock and the second door lock, the box door is protected twice, the first door lock is common, the second door lock is used for locking rotation of the box door, the second door lock is used as a second safety lock for hiding the distribution box when being arranged, the lead screw serves as a rotating shaft of the box door, and by means of the characteristic of the rotation principle of the lead screw, the rotation of the box door is limited through cooperation of the brake block and the separation blade, abnormal conditions are judged and warned through cooperation of the pull groove, the pressure sensor and the alarm, and the anti-theft performance of the power distribution box is improved.

The invention discloses a clothes air-drying device comprising a fixed frame. A hopper used for air inlet is arranged on the fixed frame. The output end of the hopper is connected with a hollow clothes hanging pipe. The clothes hanging pipe is provided with a plurality of air outlet holes used for air drying of clothes. The clothes air-drying device is simple in structure and easy to operate, wind energy is collected as the hopper is arranged on the fixed frame, the clothes on the clothes hanging pipe are dried as the air outlet holes are formed in the clothes hanging pipe communicated with the hopper, and the clothes air-drying device is convenient to use and obvious in effect.

The invention discloses an outdoor breeding support for gourd bees. The outdoor breeding support comprises a flashing board and connecting pins. A supporting rod is fixed below the flashing board, a fixing frame is connected to the lower portion of the supporting rod, a breeding auxiliary plate is installed on the inner side of the upper end of the fixing frame, a protective cover is fixed to the lower side of the breeding auxiliary plate, a protective net is arranged on the outer side of the protective cover, the outer end of the protective net is connected with the fixing frame through a fixing piece, a breeding main plate is installed in the middle of the breeding auxiliary plate, a handle is fixed to the upper side of the breeding main plate, a bee inlet is formed in the lower end of the protective cover, and a sliding plate is installed on the lower side of the bee inlet. The protective cover is arranged on the lower side of the breeding main plate and can protect new formed honeycombs, and then the success rate when the gourd bees are bred is increased. The protective net is further installed on the device, in this way, the protective performance of the device can be improved when the gourd bees are bred, and then the breeding safety of the gourd bees is guaranteed.

The invention discloses a construction spreading foundation adaptive to a filled ground settlement and a construction method. The construction spreading foundation comprises an overhanging structure on the upper portion of a pillar foundation, the pillar foundation, a construction spreading foundation body, a cushion block layer and a basement cushion layer. The method for heightening the settled construction spreading foundation includes the following steps: 1) excavating filling until to the basement cushion layer; 2) horizontally arranging an ejecting beam under the overhanging structure on the upper portion of the pillar foundation; 3) placing jacks under the portions close to two ends of the ejecting beam; 4) ejecting the ejecting beam through the jacks; 5) filling cushion blocks between the construction spreading foundation body and the basement cushion layer under the construction spreading foundation body; and 6) finally, demounting the jacks and the ejecting beam, and placing the filling back. The construction spreading foundation is reasonable in structure, convenient to construct, safe and reliable, can effectively avoid bad influence to foundation construction and normal use of architectural structures caused by foundation settlement, and has good economic benefit and time benefit in engineering construction, and the height of the foundation can be adjusted at any time according to requirements.

The invention provides a kiln accessing system and technology coprocessing RDF for a cement kiln. Opening diameters of a blanking hopper opening, a rotation discharge valve and a non-shaft reamer conveyor are enlarged by the kiln accessing system; horizontal height of the non-shaft reamer conveyor is blocked up; accumulation and blocking of the RDF are avoided; input quantity of the RDF is increased; wind pressure is improved by a Roots blower; the input speed of the RDF is increased. According to the invention, blocking during the discharging and kiln accessing of the RDF is reduced; operation rate and working efficiency of equipment are improved; producing operating cost is reduced; energy consumption is reduced.

The invention belongs to the technical field of computers, and particularly relates to a computer mounting support which comprises a base. Two fixing rods are symmetrically and fixedly mounted on the upper surface of the base, the outer surfaces of the fixing rods are slidably sleeved with a mounting table, an adjusting device is arranged in the mounting table, and the adjusting device comprises a threaded groove formed in the mounting table; a clamping plate is fixedly mounted on the upper surface, close to the middle, of the base, a supporting device is arranged in the clamping plate and comprises an empty groove formed in the clamping plate, and a fixing shaft is inserted into the inner wall of the empty groove. According to the computer mounting support, when the height of the mounting table is adjusted, only the threaded rod needs to be rotated, the distance between the sliding plates is reduced, the dip angle of the supporting rod is changed, the height of the mounting table is changed, the two fixing rods on the base are inserted into the two sides of the mounting table, and the mounting table can move in the vertical direction.

The invention discloses a height-adjustable folded portable brush pen rack, and relates to the field of stationery and sporting goods. The height-adjustable folded portable brush pen rack comprises afirst plate and a second plate; a hinge piece is movably mounted on one side of the top of the first plate; the first plate is movably connected with one side of the bottom of the second plate throughthe hinge piece; an adjusting channel is formed in the middle part of the first plate; an adjusting plate is fixedly mounted in the adjusting channel, and is provided with multiple first through holes; a first thread hole is formed in the bottom of the adjusting channel; a first screw rod is fixedly mounted in the first thread hole; and a connecting rod is fixedly connected to the side, far fromthe hinge piece, of the top of the second plate. Through arrangement of the hinge piece, the first plate and the second plate can be folded to achieve more carrying convenience; and after the first plate and the second plate are in butt joint, through butt joint of a limiting plate and a limiting groove, the first plate and the second plate are connected more stably, so that the use is more stable.

A clothes drying rack includes first poles that slide together along horizontal tracks but not vertical tracks, and second poles that slide individually along the horizontal and vertical tracks. The clothes drying rack is well-suited for residential use.

The invention provides a preparation and production process of a nano-modified high-density polyethylene alloy pipe. The preparation and production process comprises the following steps of preparing astructural layer to obtain a structural layer base material; taking out the high-temperature structural layer, and atomizing, spraying and cooling the surface of the structural layer; preparing a filling layer, specifically, taking 30-50 parts of high-density polyethylene, 20-30 parts of polylactic acid and 5-10 parts of glycidyl methacrylate and drying for 10-15 min at the temperature of 60-80 DEG C, after surface moisture is dried, heating the mixture is to be molten and then putting into a stirrer to be stirred and mixed at the high temperature, and preparing a mixture b; filling gaps in the structural layer with the mixture b, placing the filled structural layer in a sealed container, filling enough carbon dioxide, and conducting filling to form foam; and after foaming is completed, rapidly taking out the structural layer, conducting low-temperature air drying and shaping, and preparing the nano-modified high-density polyethylene alloy pipe. According to the preparation and production process of the nano-modified high-density polyethylene alloy pipe, the production efficiency of a product is improved, the structural performance of the alloy pipe is optimized, and the dead weight of the product is reduced.