296 results about "Plastic pipework" patented technology

The utility model relates to the technical field of pipeline processing, in particular to a pipeline fixer for plastic pipeline processing, which comprises a support frame, the surface of the support frame is provided with a first fixing frame and a second fixing frame which are used for clamping a pipeline, the side wall of the support frame is connected with a sliding block in a sliding mode, and the surface of the sliding block is fixedly provided with an annular frame. The side wall of the annular frame is rotationally connected with a rotating ring. The rotating ring and the connecting ring are arranged on the sliding block, the rotating ring and the connecting ring can rotate, when the rotating ring rotates, the polishing mechanism on the surface can be used for polishing the surface of a pipeline, and the phenomenon that the coating effect is affected by dirt on the surface of the pipeline is reduced; and therefore, the pipeline surface coating device is more convenient, and the processing time is saved.

The invention relates to the technical field of pipeline solid waste material treatment, in particular to a pipeline solid waste grading crusher and a material recycling method thereof.The pipeline solid waste grading crusher comprises an outer shell with the bottom face provided with a supporting base, a first feeding frame and a second feeding frame, and the first feeding frame and the second feeding frame are sequentially installed above the outer shell from front to back; and a first-stage crushing assembly and a second-stage crushing assembly are sequentially installed in the outer shell from top to bottom, a moving ring is connected to the interior of the left side of a second feeding frame through a connecting control mechanism, a cross frame body is installed in the moving ring, and cutter assemblies used for preliminary slitting are symmetrically fixed to the right side face of the cross frame body. According to the pipeline solid waste grading crusher and the material recycling method thereof, aged or damaged hard plastic pipelines can be conveniently and preliminarily cleaned, and the situation that the crushing efficiency and quality are affected by impurities such as sludge is avoided, so that the crushing and recycling efficiency and quality of the plastic pipelines can be improved, and plastic particles obtained after crushing are conveniently recycled and reused in the later period.

The invention discloses an on-line laser cutting device for a plastic pipeline. The on-line laser cutting device comprises a base, a feeding mechanism, a rotating mechanism, a laser cutting mechanism and a guide mechanism, the feeding mechanism adopts a spiral driving roller set and a lifting type driven roller set which are symmetrical up and down, so that stable conveying and pipe diameter self-adaption of the pipeline are realized; the rotating mechanism drives a limiting ring to rotate through a gear ring and is matched with an elastic guide roller and a pressure sensor to dynamically adjust clamping force; the laser cutting mechanism is integrated with a visual positioning unit and an XY sliding rail, the path of a laser cutting head is accurately controlled, and smoke dust is removed in combination with a negative pressure suction system; and the guide mechanism is adaptive to pipelines with different lengths through a spacing-adjustable bracket. The device solves the problems that a traditional cutting process is low in precision, poor in efficiency and serious in pollution, has the advantages of being high in notch flatness, stable in continuous production and high in environmental protection performance, and is suitable for an automatic production line of PVC pipelines.

The invention discloses an automatic plastic pipeline winding machine, and relates to the field of plastic pipeline production, the automatic plastic pipeline winding machine comprises a mold driving mechanism, a winding mold pipe and a formed plastic pipe conveying mechanism, the mold driving mechanism comprises a base, a sliding bottom plate and roller carriers, the sliding bottom plate is slidably mounted on the base, and multiple groups of roller carriers are mounted on the sliding bottom plate at intervals; the winding mold pipe is arranged on the roller frame, a cooling pipe is fixedly installed in the winding mold pipe, a plurality of independent cooling cavities are formed between the inner wall and the outer wall of the winding mold pipe in the axial direction of the winding mold pipe, each cooling cavity is provided with an air inlet hose, and the two ends of each air inlet hose are connected with the corresponding cooling pipe and the inner wall of the winding mold pipe correspondingly; the heating mechanism comprises a flame gun installed towards the winding die pipe, the formed plastic pipe conveying mechanism is used for conveying a material belt to the winding die pipe and conveying a plastic pipe to the wound material belt, on one hand, the shrinkage pulling force generated by later cooling is reduced, and on the other hand, the winding coverage area of the front and rear material belts is reduced.

The invention relates to the technical field of plastic pipelines, and discloses a high-precision hot melting welding device for plastic pipeline connection, the device comprises a bottom plate, a hot melting device and a plastic pipe body, the periphery of the top of the bottom plate is fixedly connected with stand columns, and the tops of the stand columns are fixedly connected with the same top plate; the hot melting device is installed below the top plate, a positioning assembly is arranged on the top of the bottom plate, and auxiliary assemblies are symmetrically arranged on the two sides of the bottom plate. The positioning assembly comprises a double-end lead screw, the double-end lead screw is rotationally connected with the bottom plate, top grooves are symmetrically formed in the top of the bottom plate, the outer side of the double-end lead screw is symmetrically sleeved with sliding bases, arc-shaped clamping plates are symmetrically and rotationally connected to the tops of the sliding bases, and first lead screws are in threaded connection with the interiors of the arc-shaped clamping plates; the problems that impurities on the surface of a plastic pipeline are melted together with a pipe during hot melting, hot melting is possibly not closed, and the welding quality and the welding efficiency are affected are solved.

The invention relates to the field of butt joint processing of plastic pipelines, and discloses a plastic pipeline hot melting butt joint processing device which comprises a workbench, two guide rails are fixedly mounted on the upper surface of the workbench, pipeline clamping mechanisms are arranged on the upper surfaces of movable seats, and a shell is fixedly connected to the bottom end of the workbench; a plurality of L-shaped sliding grooves are formed in the outer side ends of the workbenches, L-shaped sliding blocks are movably arranged in the L-shaped sliding grooves, and the inner side ends of the L-shaped sliding blocks extend into the through holes in the corresponding sides and are fixedly connected with clamping plates. The gear motor drives the worm to rotate and is in meshing transmission with the worm wheel to drive the rotating shaft and the long gears to rotate, so that the inner gear ring drives all the long gears to rotate and is in meshing transmission with the rack plate, and all the clamping plates move inwards at the same time to clamp a plastic pipe. By means of the movable clamping mode of the multiple clamping plates, the device can adapt to various plastic pipelines with different diameters, and the application range is widened.

The utility model provides a positioning and clamping device for plug-in type scraping equipment, which belongs to the technical field of plastic pipeline oxide skin scraping equipment and is arranged on a box body of the plug-in type scraping equipment, one side of the box body is provided with an accommodating cavity for inserting a plastic pipeline, and the top of the accommodating cavity is provided with a cutter. The positioning and clamping device comprises a positioning frame, two groups of positioning rollers and a driving mechanism; the two groups of positioning rollers are rotationally arranged on the positioning frame; the two groups of positioning rollers are symmetrically arranged relative to the cutter; the driving mechanism is arranged on the box body; the driving mechanism comprises a lifting end connected with the positioning frame, and under the driving of the lifting end, the positioning roller can be matched with the cutter to clamp the plastic pipeline; through the arrangement, the cushion block does not need to be replaced when plastic pipelines with different diameters are clamped, and the driving mechanism can play a role in compensating abrasion of the positioning roller, so that the plastic pipelines can be clamped through cooperation of the positioning roller and the hobbing cutter, and the situation that the plastic pipelines shake in the scraping process is reduced.

The invention relates to the technical field of die heads for extrusion molding of plastic pipelines, in particular to a multi-layer co-extrusion pipe die head with a pre-diverter. In order to solve the problems that a traditional co-extrusion pipe die head shunting structure is integrated on a spiral body, melt retention and uneven distribution are easily caused due to limited runners and steep steering, and then deviation of the wall thickness of a pipe is caused, the scheme is provided with a die body, the spiral body containing three layers of spiral distribution runners, and a first pre-shunting device and a second pre-shunting device which are sequentially arranged in the axial direction; the first pre-diverter diverts an outer-layer melt to an outer-layer spiral distribution runner through a first annular gap runner, and the second pre-diverter diverts an inner-layer melt to an inner-layer spiral distribution runner through a second annular gap runner, and is matched with a plurality of groups of feeding channels, a diversion cone, a closed-loop heating temperature control system and a layered and integrally combined wall thickness adjusting structure; and precise shunting and stable conveying of the melt are achieved. According to the scheme, the melt retention risk is eliminated, the distribution uniformity is improved, the pipe forming quality is guaranteed, and the device is suitable for multi-specification production and convenient to maintain.

The invention provides a preparation method of a flame-retardant PE (polyethylene) plastic pipe, and solves the technical problems that generally prepared magnesium hydroxide has relatively strong polarity and hydrophilicity, crystal grains tend to secondary agglomeration, the compatibility between the magnesium hydroxide and a non-polar PE material is poor, the dispersion between the magnesium hydroxide and the non-polar PE material is non-uniform, and good combination and adhesion are difficult to form between interfaces of the magnesium hydroxide and the non-polar PE material. The method can be widely applied to the plastic pipe manufacturing field; the preparation method specifically comprises the following steps: adding magnesium hydroxide modified powder and PE granules into a mixer, adding an antioxidant, an antioxidant aid, a flame retardant accelerator and a synergist, uniformly mixing for 5-60 minutes, and drying at 50-90 DEG C to obtain a mixture; the mixture is granulated at the temperature of 25-85 DEG C, the rotating speed of a main machine is 100-450 r / min, and a modified raw material is obtained; the modified raw materials are added into an extruder for extrusion molding of the plastic pipeline, the extrusion temperature of the extruder is 150-220 DEG C, and the extrusion speed is 2-6 m / min; and cooling, shaping, cutting and drawing to form the PE plastic pipe.

The invention discloses plastic pipeline particles prepared from waste incineration fly ash and a preparation method of the plastic pipeline particles. The particles are prepared from the following raw materials in parts by weight: 5-25 parts of PE, 20-100 parts of superfine calcium carbonate, 1-5 parts of needle-like wollastonite, 1-5 parts of chopped carbon fibers, 1-15 parts of rutile type titanium dioxide, 10-75 parts of waste incineration fly ash, 1-20 parts of paraffin, 0.2-5 parts of a coupling agent and 0.5-10 parts of a dispersing agent. The preparation method comprises the following steps: 1, cleaning and airing the fly ash, and crushing and grinding the fly ash into 600-1250-mesh powder P; 2, mixing the powder P with inorganic fillers such as superfine calcium carbonate at a high speed of 100-130 DEG C to obtain a composite filler M; 3, mixing and modifying the filler M with a dispersing agent and a coupling agent at a high speed to obtain modified powder MP; 4, MP, PE and paraffin are mixed and plasticized at a high speed, and single-screw extrusion granulation is performed. The particles achieve fly ash recycling and are excellent in processability, the prepared PE pipeline is high in strength, resistant to corrosion and long in service life and can be used as an industrial or municipal sewage pipeline, and the preparation method is convenient, fast and efficient.

The utility model relates to the technical field of plastic pipeline pressure testing, and discloses a plastic pipeline pressure testing device which comprises a test board, a pressure pump is fixedly connected to the top of the test board, a connecting pipe is fixedly connected to one side of the pressure pump, and a pressure gauge is fixedly connected to the outer surface of the connecting pipe and can clamp and seal the joint of the connecting pipe and a plastic pipeline. The situations that the detection result is inaccurate and the pressure resistance and the sealing performance of the pipeline cannot be truly reflected due to gas leakage of the plastic pipeline in the process that the pressure test device conveys gas for detection are avoided, so that the detection time is shortened, the detection cost is reduced, and different from a bayonet and bolt fixing mode in the prior art, the detection efficiency is improved. Manual intervention can be reduced, and the situation that the detection effect is affected by gas leakage due to looseness caused by the fact that a pipeline detection joint is impacted by conveyed gas due to immature operation technology or errors of workers is avoided.

The invention discloses a self-adaptive clamping tool for a plastic pipeline. The self-adaptive clamping tool comprises a clamping base, double motors and a fixing flange. The first rotatable finger and the second rotatable finger are symmetrically installed on the two sides of the base, the tail ends of the first finger and the second finger are connected with the third finger and the fourth finger through detachable structures, and the triangular structures can be replaced to adapt to different pipe types. The driving gear is driven by a first motor and meshed with the driven gear to be in linkage with the supporting arm to control clamping opening and closing, and the elastic buffering structure is matched with multi-pipe-diameter clamping force. The second motor drives the base to rotate by 360 degrees, and the pressure sensor is embedded into the finger to feed back clamping force in real time and control the torque of the motor in a closed-loop mode. The non-slip mat can be heated to enhance the low-temperature friction performance. Self-adaptive lossless clamping, multi-angle precise positioning and intelligent force control of the pipeline are achieved, and the intelligent force control device is suitable for the automatic production scene of the PVC pipeline.

The utility model provides a pipeline extruding and winding device, belongs to the technical field of plastic pipeline production equipment, and aims to solve the problems that in the process of winding a high-toughness pipeline by a winding machine, manual tightening is needed during binding, so that a pipeline head can be bound after being attached to a pipeline roll, two persons are needed for simultaneous operation, the manual labor intensity is high, and time and labor are wasted. Comprising a vertical plate, a motor is arranged on the back of the vertical plate to drive a rolling ring in front of the vertical plate, a plurality of U-shaped storage frames are distributed on the circumference of the front side of the rolling ring, a top frame is arranged at the top of the vertical plate, a guide structure is arranged on the top frame, a side frame is arranged on one side of the vertical plate, and an air cylinder is arranged on the side frame. An output shaft of the air cylinder penetrates through the side frame to be connected with a pressing plate, and the extrusion face of the pressing plate is parallel to the circumferential tangent plane of the rolling ring.

The invention discloses a multi-layer composite pipe as well as a preparation method and application thereof, and relates to the technical field of plastic pipelines. The multi-layer composite pipe sequentially comprises an anti-freezing outer layer, a bonding layer and a pressure-bearing inner layer from outside to inside, and the anti-freezing outer layer comprises PPR; nanoparticles; an elastic body; the bonding layer comprises a gradient copolymer, and preparation raw materials of the gradient copolymer comprise PP, PE and a silane coupling agent; the gradient copolymer sequentially comprises a first gradient layer, a second gradient layer and a third gradient layer in the thickness direction of the bonding layer, the mass ratio of PP to PE in the first gradient layer is 7: 3-8: 2, the mass ratio of PP to PE in the second gradient layer is 4: 6-5: 5, and the mass ratio of PP to PE in the third gradient layer is 2: 8-3: 7; and the pressure-bearing inner layer comprises PERT and peroxide. The multi-layer composite pipe provided by the invention has excellent frost crack resistance and long-term hydrostatic stability.

The invention provides a high-strength anti-impact ABS pipe production technology and device, and the technology comprises the following steps: S1, raw material preparation and pretreatment: drying an ABS resin raw material at 80-90 DEG C for 2-4 h, adding color master batch, a stabilizer and other assistants according to a certain ratio, and uniformly mixing; s2, extrusion molding: pouring the mixed raw materials into a hopper of a plastic pipeline manufacturing device, melting the mixed raw materials in the plastic pipeline manufacturing device, and continuously extruding the mixed raw materials through a mouth mold; s3, sizing and cooling: enabling the extruded tubular parison to enter a sizing device for sizing and forming the outer diameter of the tubular product, and spraying cooling water to the surface of the tubular product through a cooling device for cooling; and S4, traction and cutting are conducted, specifically, the pipe is clamped and pulled out at a constant speed through a traction device, the traction speed is synchronous with the extrusion speed, and after the continuously-produced pipe reaches the preset length, the pipe is automatically or semi-automatically cut through a cutting device. The ABS pipe is cooled in a gradient mode after cooling water is subjected to segmented temperature control, equipment connected when the device is used is reduced, the installation efficiency is improved, and daily maintenance is facilitated.

A manual or hand-held plastic pipe scraper and inspection tool comprising a pipe scraper body 1 having an angled pipe-scraper blade (6, fig 3) and a mirror 2 to view difficult to see preparation areas

The utility model discloses a kind of anti-static fluoroplastic pipeline connecting pieces, it is related to pipeline connecting piece technical field.The utility model includes two pairs of butt joint limiting components of symmetrical arrangement, butt joint limiting component includes trapezoidal transmission ring and trapezoidal transmission block, trapezoidal transmission ring and trapezoidal transmission block between sliding fit, trapezoidal transmission block one side is fixedly connected with arc limiting plate by transmission horizontal column, coaxial heart rotationally connected with butt joint adjusting component between butt joint limiting component, the adjusting support pipe of butt joint adjusting component rotationally arranged, telescopic adjusting pipe is slidably arranged in adjusting support pipe.The utility model is slid along adjusting support pipe inner wall by telescopic adjusting pipe, adjust the spacing between two butt joint limiting components, control trapezoidal transmission ring sliding, between trapezoidal transmission ring and trapezoidal transmission block sliding fit, arc limiting plate radial movement carries out position limitation to plastic pipeline, the connection limitation between different distance to be butt joint pipe is realized.

The utility model discloses a forming device for processing a plastic-lined steel pipe, which belongs to the field of plastic-lined steel pipe processing and comprises a plastic-lined steel pipe processing base, a heating mechanism is arranged at the top of the plastic-lined steel pipe processing base, and a plastic-lined steel pipe forming part is arranged in the heating mechanism. The plastic pipeline can be automatically filled with high-pressure gas when the steel pipe layer and the plastic layer of the plastic-lined steel pipe forming part are heated, the plastic layer can be better attached to the inner wall of the steel pipe through the high-pressure gas, meanwhile, sufficient diffusion and permeation of a binding agent between the plastic layer and the steel pipe are promoted, and therefore the binding force between the plastic layer and the steel pipe is enhanced; the gas pressure and the gas flow are adjusted, so that the phenomenon of layering or stripping between the plastic layer and the steel pipe in the subsequent cooling and using process can be avoided, and the distribution and the thickness of the plastic layer on the inner wall of the steel pipe can be controlled by adjusting the gas pressure and the gas flow, so that the uniformity and the flatness of the plastic layer are ensured.

The utility model relates to the technical field of plastic pipeline production, especially a kind of plastic pipeline processing double-screw extruder, including frame;Still including machine barrel, several machine barrels are fixedly connected on rack, adjacent machine barrel is connected by bolt, machine barrel end bolt connection has blanking barrel, fast connecting support is fixedly connected on machine barrel top, sealing assembly is connected on fast connecting support, selection control component is fixedly connected on rack, and selection control component's output end is connected with fast connecting component;The utility model is connected by multiple machine barrels, meanwhile, multiple fast connecting supports are equipped on multiple machine barrels, then the rapid switching of real-time channel using multiple components, the modularization of device is realized, it is very convenient for subsequent local cleaning and maintenance, greatly improve work efficiency, while can be more maintenance and cleaning condition, flexible adjustment is carried out to blanking passage, can adapt to multiple process flows, and the quality of product produced is better.

The utility model discloses an automatic polyethylene cylinder film heating and sealing device which comprises a workbench, and a plastic pipeline is placed above the workbench. Driving modules are arranged on the two sides of the top of the workbench, transmission mechanisms are arranged on the two sides of the top of the workbench, and the driving modules are at least used for driving the transmission mechanisms to operate. A telescopic assembly is arranged on the transmission mechanism, a heater is arranged at the end of the telescopic assembly, the telescopic assembly is at least used for front-back movement of the heater, and the heater is at least used for heating and shaping polyethylene barrel films at the two ends of the plastic pipeline. The driving module drives the transmission mechanism to move, the position of the heater is changed, the plastic pipeline sealing device can be suitable for sealing operation of plastic pipelines with different lengths, the plastic pipelines are sealed through the heater, and the sealing efficiency is improved. The problems that in the automatic packaging process of a production line of a plastic pipeline, when a polyethylene (PE) barrel film is used for packaging and sealing, the pre-length needs to be used, and the polyethylene (PE) barrel film is wasted are solved.

The invention discloses a multi-layer weft steel skeleton and a pipeline thereof, and relates to the technical field of steel skeleton pipelines, the multi-layer weft steel skeleton comprises internal supporting warps, external spiral wefts are spirally welded outside the internal supporting warps, the internal supporting warps are formed by arranging a plurality of independent warps in the circumferential direction, and the external spiral wefts are spirally welded outside the internal supporting warps. According to the steel skeleton composite plastic pipeline, by means of the unique triangular arrangement structure design of the external spiral wefts, the stress condition of the steel skeleton composite plastic pipeline in the using process is improved, radial deformation of the pipe wall is effectively restrained, and the service life of the steel skeleton composite plastic pipeline is prolonged. And meanwhile, the internal supporting longitude lines cooperatively provide axial rigid support, the overall pressure bearing capacity and impact resistance of the pipeline are remarkably improved through the combined action of the internal supporting longitude lines and the external supporting longitude lines, the phenomenon that the pipeline is exploded in the using process of the steel skeleton composite plastic pipeline is effectively prevented, and then the overall service life of the steel skeleton composite plastic pipeline is effectively prolonged.

The utility model discloses a mounting tool for an oil feed pump, which comprises a movable base, universal wheels are arranged at four corners of the bottom of the movable base, a positioning port is arranged on the movable base, a heating mechanism is fixedly mounted in the middle of the movable base, and the heating mechanism comprises a positioning base fixed on the movable base. A heat preservation oil tank is fixedly installed on the positioning base, a volume reduction protrusion is arranged in the middle of the heat preservation oil tank, an electric heating pipe is fixedly installed in the heat preservation oil tank, an isolation disc is fixedly installed at the position, above the electric heating pipe, in the heat preservation oil tank, a communicating hole is formed in the surface of the isolation disc, and a positioning mechanism is arranged above the heating mechanism. According to the installation tool for the oil supply pump, after one end of the pipeline is soaked in heat conduction oil liquid, a power source of the electric heating pipe can be switched on, so that one end of the plastic pipeline is heated and softened, and a user can install the pipeline on a connector of the oil supply pump conveniently.

The utility model discloses a non-damage plastic pipeline sealing connection device which comprises a first pipeline and a second pipeline, and a first flange and a second flange are arranged at the ends, close to each other, of the first pipeline and the second pipeline respectively. According to the utility model, one end of the first pipeline and one end of the second pipeline are respectively fixed between the outer supporting ring and the inner supporting ring which are respectively arranged at one end of the first flange and one end of the second flange, and are sealed and fixed through the sealing ring; the outer supporting ring can be gradually extruded, so that the outer supporting ring and the inner supporting ring are firmly attached to the pipeline, the contact area with the plastic pipeline is increased, the first flange and the second flange are connected with the plastic pipeline more tightly, and the leakage problem is avoided; and finally, the first flange and the second flange are connected through the flange connecting bolt, so that non-damage sealing connection of the plastic pipeline can be completed, the structure is simple, and operation is convenient and labor-saving.

The utility model relates to pipeline cutting technical field discloses a cutting device of plastic pipeline extruder, including pipeline main part, the pipeline main part inner wall is pasted with the pasting board, the pipeline main part top surface pastes with cutting knife, the cutting knife top surface pastes with the frame, the frame front side fixedly connected with the base, the base top surface pastes with the moving seat, the moving seat top fixedly connected with first motor and support plate, first motor output fixedly provided with screw rod, the screw rod surface is equipped with the connecting ring, the screw rod end threadedly connected with the screw ring, the screw ring surface rotatably connected with first connecting rod, the connecting ring surface rotatably connected with second connecting rod, in the utility model, through the displacement of screw ring drive pasting board to screw rod as center and draw in or expand outward, can realize through pasting board and pipeline main part inner wall pasting to fix pipeline main part, avoid pipeline main part and take place deformation.

The application discloses a plastic pipeline with spiral strip structure on the outer surface and a preparation method thereof, and comprises the following steps: mixing, hot stirring and cooling and stirring plastic pipeline raw materials to obtain a mixture; feeding the mixture into an extruder and extruding through a die to form a pipe blank with spiral strip structure; making the pipe blank pass through a rotating sizing sleeve assembly and being cooled and shaped in a water tank to obtain the plastic pipeline with spiral strip structure on the outer surface; synchronously rotating and dragging the plastic pipeline by using a rotating pipe dragging mechanism, and then performing length cutting; after cutting, the pipeline is corrected by a correction pipe supporting frame, is dragged by a two-jaw belt dragging machine, and is marked by code spraying, and then is packed into a warehouse to obtain the plastic pipeline with spiral strip structure on the outer surface. The application is a new type of dragging and rotating extrusion technology instead of a traditional die rotating extrusion technology, and the technology can realize long-term stable production and has a high production speed.

This invention discloses a drip irrigation device for potato cultivation in sandy soil. The invention relates to the field of sandy soil potato cultivation technology and includes a storage tank for holding and storing drip irrigation solution. A liquid guide pipe is fixedly installed on the top of the storage tank, an inlet is fixedly installed on one side of the outer surface of the storage tank, and a support frame is fixedly installed on the bottom of the storage tank. A mixing guide is used to discharge and mix nutrients within the storage tank. A filter assembly is used to filter impurities in the drip irrigation solution. In this drip irrigation device for sandy soil potato cultivation, liquid is injected into a layered hood through the guide pipe. The filter pipe inside the layered hood further filters the liquid, allowing the filtered liquid to flow from the outlet into the delivery pipe. This facilitates the removal of impurities from the liquid during delivery, reducing the impurity content and preventing scaling in the pipes over long-term operation, which could lead to blockages in the plastic pipes during drip irrigation.

The utility model relates to the technical field of side slope drainage, in particular to a water seepage blind pipe suitable for an existing side slope, and when underground water seeps into the water seepage blind pipe, water firstly enters the pipe through drainage holes in the side wall of a supporting pipe. The supporting pipe is made of a hard material and plays a role in supporting and protecting an internal filtering system. Compared with a plastic pipeline which is directly arranged in the supporting pipe and provided with holes, the woven filtering pipe has the advantages that the gap structure is more complex and fine, impurities such as fine soil particles in underground water can be more effectively intercepted, the filtering precision and the drainage quality are improved, and the woven structure has certain elasticity and flexibility, so that the filtering effect is better. And the pressure change and tiny deformation in the slope body can be better adapted, breakage or damage is avoided, and a certain water passing capacity can be kept even if part of the slope body is blocked. The method can be widely applied to the technical field of slope drainage.

The utility model provides a plastic pipeline connector. The plastic pipeline connector comprises a connector body and a locking sleeve. The connector body is provided with a butt joint part and a first connecting part in the axial direction, the butt joint part is of a tubular structure, the outer diameter of the butt joint part is gradually decreased in the direction away from the first connecting part, and the outer wall of the butt joint part is sleeved with the plastic pipeline. A locking part and a second connecting part are arranged on the locking sleeve side by side in the axial direction, the locking part is of a tubular structure, the inner diameter of the locking part is gradually reduced in the direction away from the second connecting part, the locking part is arranged on the plastic pipeline in a sleeving mode and can move along the central axis of the plastic pipeline, and when the locking part moves towards the butt joint part, the plastic pipeline can be clamped; the second connecting part is connected with the first connecting part, the clamping state of the plastic pipeline is kept, sealing butt joint of the pipeline is achieved, and reliability and convenience are achieved.

This invention provides a flattening device for the ends of heating plastic pipes, applicable to the field of plastic pipe flattening processing equipment. The device includes: a support mechanism, divided into a main frame and a secondary frame; a pipe clamping mechanism for clamping and fixing the bent portion of the plastic pipe; a tail-end positioning mechanism for providing auxiliary support and positioning for the end of the plastic pipe furthest from the flattening end; an inner mold for extending into the flattening end and applying a compressive force to its inner wall; an outer mold, corresponding to the inner mold, for applying a compressive force to the outer wall of the flattening end; and a flattening drive mechanism, connected to both the inner and outer molds, for driving the inner and outer molds to achieve either mating compression or separation and resetting. This invention, through the corresponding mating of the outer and inner molds, applies a compressive force to the outer wall of the flattening end, ensuring that the flattening process meets design requirements, achieving high flattening accuracy, and facilitating convenient and efficient demolding from the narrow-mouth flattening end.