283 results about "Barrel Shape" patented technology

The invention relates to the technical field of batteries, in particular to a battery explosion-proof valve and a battery. The battery explosion-proof valve comprises a protective shell, an ejector pin and a diaphragm, the protective shell comprises a shell body and a protective cover which are integrally connected in an injection molding mode, the shell body is in a barrel shape with two open ends, radial exhaust holes are formed in the peripheral wall of the shell body, the protective cover is connected to the opening in one end of the shell body in a plugging mode, and the opening in the other end of the shell body is a pressure relief hole. The pressure relief hole is communicated with the radial exhaust hole and the interior of the battery, the ejector pin is arranged on the top wall of the protective cover and located in the inner cavity of the shell body, the diaphragm covers the pressure relief hole, and gas exhausted from the interior of the battery can drive the diaphragm to deform towards the ejector pin so that the diaphragm can be punctured by the ejector pin. According to the battery explosion-proof valve, the processing technology of the battery explosion-proof valve can be simplified, the processing cost is low, and the failure of the diaphragm can be avoided.

A portable stirrer comprises a base with a power mechanism and a container with a stirring knife, a cover is arranged at an outlet in the top end of the container, the base and the container which is connected with the base in a clamped mode and the container in a clamped mode are in a barrel shape easy to hold by hand, and the cover is connected to the outlet in the top end of the container in a clamped mode. The container comprises an inner container with a stirring knife at the bottom and a container shell wrapping the inner container, a base control signal input contact is arranged on the upper end face of the base, and a bottom end control signal input contact matched with the base control signal input contact is arranged at the bottom end, making contact with the upper end face of the base, of the container. A magnetic touch switch is arranged between the inner container at a top outlet of the container and the container shell, a magnet matched with the magnetic touch switch is arranged on a cover covering the top outlet of the container, and the magnetic touch switch is connected with a bottom control signal input contact through a wire. Compared with the prior art, the device has the advantages that a moving space for specially arranging a power mechanism is not needed, the structure is simple, the manufacturing cost is low, and the rotating shaft does not shake when rotating.

The invention discloses a large thermoplastic composite machine body assembling device and a using method thereof.The assembling device comprises two sets of elevated sliding rail assemblies, two sets of movable crown blocks, an AGV, four sets of barrel shape-preserving frames, a photogrammetry system and two sets of numerical control positioning systems, and the two sets of elevated sliding rail assemblies are symmetrically arranged at a certain interval between the two sets of elevated sliding rail assemblies; an AGV can pass through the middle, the two sets of movable crown blocks stretch across the tops of the two sets of elevated sliding rail assemblies side by side, the two sets of numerical control positioning systems are correspondingly arranged below the two sets of movable crown blocks, the barrel shape-preserving frame can fix one half of a thermoplastic composite machine body barrel, and a set of zero point positioning system is arranged on the upper end face of the barrel shape-preserving frame. The lower surface of the lower end of the machine body is provided with a set of ball head assembly, the machine body cylinder capable of being provided with the half thermoplastic composite material is fixed to the movable crown block, the lower surface of the lower end of the machine body is provided with a set of ball head assembly, the machine body cylinder capable of being provided with the half thermoplastic composite material is fixed to the AGV, the upper surface of the lower end of the machine body is provided with a set of ball head assembly, and the machine body cylinder capable of being provided with the half thermoplastic composite material is fixed to the numerical control positioning system. The technical scheme provided by the invention can be directly popularized to the technical field of mounting and lifting of aircraft floors of different sizes and types in the aeronautical manufacturing industry.

The utility model relates to the field of water softening, and provides a resin tank assembly and a water softening device.The resin tank assembly comprises a first tank body, a second tank body and a water distribution mechanism, the first tank body is arranged in a barrel shape, one end of the first tank body is provided with a first installation opening, and the peripheral side of the first installation opening is provided with a first connecting part; the second tank body is provided with a first end and a second end which are oppositely arranged, the first end is connected with the first mounting opening so as to form a containing cavity between the first tank body and the second tank body, the containing cavity is communicated with the first mounting opening, a second connecting part correspondingly connected with the first connecting part is arranged on the peripheral wall of the first end, and a necking opening is formed in the end face of the second end; the necking is used for communicating the accommodating cavity with the waterway component; the water distribution mechanism is installed in the containing cavity. The water distributor is not limited by the size of the necking opening, the water distribution area can cover the cross sectional area of the whole resin tank, the water distribution effect of the water distributor is improved, and the resin regeneration rate and the water production amount are improved.

The utility model discloses a flowmeter with an anti-blocking mechanism, and relates to the technical field of flowmeters. The flow meter with the anti-blocking mechanism comprises a flow meter body, mounting flange plates are fixedly welded to the two ends of the flow meter body respectively, a supporting circular ring is fixedly connected to the interior of the flow meter body, and a permeable filter element is rotationally connected to the interior of the supporting circular ring; the liquid outflow cavity is formed in one end of the permeable filter element, and the permeable filter element is in a barrel shape through the arranged liquid outflow cavity, so that liquid can only permeate into the permeable filter element and then flows out through the liquid outflow cavity. According to the flowmeter with the anti-blocking mechanism, the scrubbing brush continuously scrubs the surface of the permeable filter element, so that the blocking phenomenon of the permeable filter element can be effectively avoided, normal flowing of liquid is ensured, normal monitoring of the flowmeter body on the liquid flow is ensured, normal use of the flowmeter is ensured, and the flowmeter is convenient to use. And the cost expenditure caused by maintenance and replacement is reduced.

The utility model provides a milk tea cup filter, which solves the problem of inconvenience in using the existing filter. The milk tea cup filter includes a handle and a filter cartridge that is vertically arranged and in the shape of a long barrel; the handle includes a connecting sleeve and a holding frame that is arranged outside the connecting sleeve and in the shape of an inverted L; the connecting sleeve is sleeved and fixed outside the upper end of the filter cartridge; the holding frame is composed of a horizontally arranged connecting part and a vertically arranged holding part, the holding part is arranged on one side of the filter cartridge and there is a gap between the two, and the two ends of the connecting part are respectively connected to the upper end of the holding part and the connecting sleeve; a convex block is formed on the top of the connecting part, and a hanging hole is horizontally penetrated on the convex block, the axis of the hanging hole extends along the arrangement direction of the holding part and the filter cartridge, and the hanging hole is located higher than the connecting sleeve. The milk tea cup filter is easy to use.

The application discloses a kind of broken wall ganoderma spore powder uncoating equipment and uncoating method, including shell, the shell is transverse barrel shape, the lower side of two end surfaces of the shell is fixedly installed with fixed plate, the bottom of two ends of two described fixed plate is fixedly installed with inclined support leg, the top of one of described fixed plate is fixedly installed with control module, the middle part of one end surface of the shell is installed with dry feeding mechanism that is connected with shell interior, breakage mechanism is installed in the shell, the broken wall ganoderma spore powder uncoating equipment and uncoating method can make ganoderma spore powder can quickly complete breakage, improve the efficiency of breakage, breakage rate can reach 98% or more, improve the edible taste of ganoderma spore powder, reduce difficult to digest and absorb component, nutritional value is higher, and the inner wall of first grinding barrel and second grinding barrel can be cleaned, so that ganoderma spore powder after breakage can be discharged to outside in whole, avoid the waste of ganoderma spore powder.

The soil sampler is applied to the field of soil sampling equipment and comprises a sampling barrel and a core tube, the sampling barrel is arranged to be in a circular barrel shape and is of a hollow structure, the upper end of the sampling barrel is provided with a communicating opening, the lower end of the sampling barrel is arranged in a penetrating mode, and the core tube is arranged to be in a circular barrel shape and is of a hollow structure; the upper end and the lower end of the core pipe are arranged in a penetrating mode, the core pipe and the sampling barrel are coaxially connected and communicated through a communication opening, a first handle is arranged at the upper end of the core pipe, a push rod is arranged in the core pipe, the upper end of the push rod extends out of the core pipe and is provided with a second handle, and the lower end of the push rod extends into the sampling barrel and is provided with a bulldozing plate. The bulldozing plate is matched with the inner wall of the sampling barrel, and the lower end of the sampling barrel is provided with soil fixing steel bars on the inner wall of the sampling barrel in the circumferential direction. According to the soil sampler, in the process of pulling out the sampling barrel, due to the fact that a soil sample is fixed by the soil fixing reinforcing steel bars and the soil fixing grooves, the soil sample can be pulled out along with the sampling barrel more easily.

The invention relates to a centrifugal sewage separation device which comprises an outer shell, the outer shell is transversely placed and comprises an oblique cone, a rear body and a connecting pipe body, the oblique cone is in a cone barrel shape, the rear body is in a volute shape, the large-area end of the oblique cone is communicated with the end of the rear body, and the small-area end of the oblique cone is communicated with the connecting pipe body; the sewage input pipe is communicated with the side wall of the connecting pipe body; the mud pipe is located below the rear body and communicated with the side face of the end, away from the oblique cone, of the rear body through a buffer pipe. The driving motor is mounted at one end of the rear body away from the oblique cone, an output shaft of the driving motor is coaxially and fixedly connected with a rotating shaft, a rotating disc is arranged at the end of the rotating shaft, and a plurality of impellers are circumferentially arranged at equal intervals at one end of the rotating disc close to the oblique cone; the clear liquid outlet pipe is inserted into the outer shell from the end, away from the inclined cone, of the connecting pipe body, and the clear liquid outlet pipe penetrating into the outer shell is located in the middle of the impellers. Impurities in the sewage can be conveniently separated from water.

The utility model relates to the field of medical equipment, in particular to an elastic supporting woven sleeve for preventing penis infection, which comprises an integrated elastic sleeve body, two ends of the elastic sleeve body are open, the elastic sleeve body comprises a glans penis wrapping portion in a pot body shape and a penis wrapping portion in a barrel shape, and the penis wrapping portion is provided with a plurality of openings. The elastic sleeve body is made of an elastic composite cotton material. The utility model has the advantages of reasonable structure, good wearing stability and high comfort, greatly reduces the stimulation to a patient, and effectively eliminates the bag-shaped lacuna caused by overlong prepuce, thereby preventing the prepuce dirt from remaining, dermatitis and penis cancer related to the prepuce dirt, and being beneficial to reducing the incidence rate of sexual dysfunction caused by overlong prepuce.

The invention relates to a manufacturing method of a light-weight heat-alloy-free automobile hub, which comprises the following steps of: firstly, preparing an alloy raw material, then smelting and casting, and casting a light alloy into a barrel shape by a gravity inclined casting method; then spinning the drum into the required wheel rim by using a spinning machine; machining is conducted after heat treatment is conducted, and a rim semi-finished product needed before wheel welding is formed; meanwhile, spokes in various shapes are cast through a vibration pressurizing casting method, and machining is carried out; the rim and the spoke are welded to form a hub blank through friction stir welding or inertia friction welding; and finally, through machining and surface treatment, the finished hub meeting the technical requirements is obtained, and the finished hub is packaged and warehoused. According to the light-weight heat-free alloy automobile hub, the fine grain casting spoke, the casting and spinning rim and the friction welding technology are adopted for producing the light-weight heat-free alloy automobile hub, the comprehensive performance of the hub is remarkably improved, light weight of the automobile hub is achieved, and the requirements of modern automobiles for light weight, strength and performance are met.

The integrated barrel cover structure comprises two limiting covers and a reinforcing connecting structure, the two limiting covers are combined into a whole, the two limiting covers are in a hollow barrel shape, the front end faces of the limiting covers are folded inwards to form door seal installation protruding faces, the edges of the rear end faces of the limiting covers are provided with convex edges protruding outwards, and the convex edges are connected with the reinforcing connecting structure. A connecting hole and an upper shock absorber mounting seat are arranged on the convex edge, the reinforced connecting structure is arranged between the two limiting covers, balance block mounting seats are arranged on the upper surface and the lower surface of the reinforced connecting structure, and lower shock absorber mounting seats are arranged on the outer sides of the two limiting covers. The two washing machine barrels are integrally connected together, the connecting strength is high, the area is reduced, the space is saved, the arrangement of a whole machine circuit waterway is facilitated, and the integrality is good.

The embodiment of the invention provides a foundation pit protection device with a mold, and relates to the technical field of engineering machinery. The foundation pit protection device with the formwork comprises a frame, a protection cover plate and a plurality of formworks. The multiple templates are arranged on the outer periphery of the frame in the circumferential direction of the frame, and the multiple templates can move relative to the frame so as to be switched between an unfolded state and a folded state; in the unfolding state, all the templates are spliced to form a barrel shape; and in the retracting state, the two adjacent templates partially coincide in the circumferential direction. And the protective cover plate is arranged at the top of the frame. The efficiency and safety of the manual hole digging pile construction technology can be improved.

The utility model discloses a mushroom sample primary aluminum sampling and fixing device which comprises a bearing groove, the bearing groove is distributed in a round barrel shape with the upper end open and the lower end closed, three puller bolts are evenly arranged on the outer wall of the bearing groove, and the puller bolts penetrate through the bearing groove and are fixedly connected with the bearing groove through threads. And a handle is arranged outside the object bearing groove. According to the utility model, a sample is fixed in the object bearing groove, so that the aluminum skimmings can be conveniently drilled, free translation can be carried out according to the drilling condition, meanwhile, the aluminum skimmings can be prevented from falling out of the object bearing groove, the aluminum skimmings can be conveniently and uniformly collected, the use is convenient, the operation is simple, and the popularization is easy.

The invention discloses a liquid damping shock absorber which comprises an outer shell (6) and a middle shaft (2) and is characterized in that the outer shell (6) is in a barrel shape, the middle shaft (2) is installed at the bottom of the barrel through an axial supporting mechanism (14), a damping barrel is arranged in the outer shell (6) and installed on the middle shaft (2), and the damping barrel is of a cavity structure with an elastic gap in the lower bottom face. The upper end of the middle shaft (2) penetrates out of the center of an upper end cover (3) of the outer shell (6), damping liquid is contained in the outer shell (6), and the liquid level of the damping liquid is higher than the lower bottom face of the damping cylinder. According to the shock absorber, the damping liquid and the damping cylinder are organically combined, the damping cylinder extrudes the damping liquid when the shock absorber is subjected to an external load, vibration energy is counteracted through viscous dissipation and dynamic pressure generated by liquid shaking, gaps can be changed when pressure is received by the porous structure characteristics of the bottom of the damping cylinder, and the flow of the damping liquid penetrating through the gaps is influenced; therefore, the damping of the shock absorber is variable.

The invention discloses a rotating motor, and belongs to the technical field of motor production. Comprising a rotor, a stator, a stator winding, a rotor shaft and a fixing device, the rotor is in a barrel shape with a hole in the center, the hole in the center of the rotor is a rotor center hole, the stator is cylindrical, a stator center hole is formed in the center of the stator, an outer center hole is formed in the center of the fixing device, the stator is embedded into an inner cavity of the rotor, and the fixing device is arranged on the other side of the stator. The rotor shaft penetrates through the rotor center hole, the stator center hole and the outer center hole, the stator winding is wound on the stator, and the stator and the fixing device are fixed through a fixing rod in a threaded connection mode. The rotor of the motor is integrally formed and cast by the steel material with strong magnetic conductivity, the integral forming process is relatively simple, the motor has the advantages of low cost and high finished product quality, the magnetic conductivity is good, no permanent magnet is needed, and the production cost is reduced.

The utility model discloses a splicing type crane hanging beam structure and a crane, the splicing type crane hanging beam structure comprises a first longitudinal beam, and the first longitudinal beam is in a square barrel shape; the second longitudinal beam is in a square barrel shape, the two end faces of the second longitudinal beam are different in size, and the large end face of the second longitudinal beam is matched with the first longitudinal beam; the two second longitudinal beams are arranged at the two ends of the first longitudinal beam respectively, the two second longitudinal beams are symmetrically arranged, the large end faces of the second longitudinal beams are spliced with the first longitudinal beam, and the two second longitudinal beams and the first longitudinal beam form a hanging beam body; and two connecting parts. According to the embodiment of the utility model, the first longitudinal beam and the two second longitudinal beams are spliced and connected through the connecting parts, so that the hanging beam structure can be spliced, the transportation requirement of the hanging beam structure is met, and meanwhile, the transportation cost of the hanging beam structure is also reduced. Therefore, the defect that the lifting beam of the crane is inconvenient to transport in the prior art is effectively overcome.

The invention relates to the technical field of scum cleaning, in particular to a QPQ salt bath scum cleaning device and method. The device comprises an extraction pipe, an extraction pipe head, a locking cover, an extraction rod and an extraction rod head matched with the inner diameter of the extraction pipe head, the drawing pipe is in a thin cylinder shape and is opened at two ends; the drawing pipe head is in a conical barrel shape, openings are formed in the two ends of the drawing pipe head, and the large end of the drawing pipe head is connected with the first end of the drawing pipe. A through hole is formed in the center of the locking cover, and the locking cover is connected with the second end of the drawing pipe; the drawing rod is in a long rod shape, the diameter of the drawing rod is smaller than the inner diameter of the drawing pipe, the diameter of the drawing rod is in clearance fit with the inner diameter of the through hole, and the first end of the drawing rod penetrates through the through hole and is arranged in the drawing pipe in the axial direction of the drawing pipe; the drawing rod head is arranged in the drawing pipe, and the drawing pipe head is connected with the first end of the drawing pipe. According to the device, fine particle scum precipitated in salt bath liquid is effectively sucked into the suction pipe, and the cleaning efficiency is remarkably improved.

The utility model discloses a portable storage cylinder, which belongs to the technical field of storage devices and particularly comprises a plurality of binding units, the binding units are arranged side by side, the adjacent binding units are hinged, and all the binding units are folded and rolled up to form a cylindrical structure; the binding unit comprises a fixed groove plate; end covers are mounted at the two ends of the fixed groove plate; a fixing assembly used for fixing articles and a cushion block used for lifting the articles are arranged on the inner side of the fixing groove plate. The binding device is formed by hinging the binding units side by side, the tiled binding units can be rolled into a barrel shape in an overturning and folding mode, each binding unit is an independent rod body fixing mechanism, a plurality of rod-shaped objects can be stored and fixed at the same time, the fixed objects are independent from one another, no collision or friction is generated, and the binding device is convenient to use. And the device can be used for simultaneously fixing rod-shaped articles with different lengths, and is more convenient to use.

The invention belongs to the technical field of casting production, and discloses movable heat preservation pouring equipment which comprises a pouring ladle used for containing a metal solution, the pouring ladle is installed in an overturning frame, the overturning frame is rotatably installed on a sliding frame, the sliding frame is installed on a fixing frame in a sliding mode, and the sliding frame is driven by a power device to slide on the fixing frame. The pouring ladle comprises a furnace frame installed in the overturning frame, a ladle body arranged in a barrel shape is fixedly installed in the furnace frame, a furnace mouth frame is fixed to the pouring front side wall of the furnace frame, a barrel-shaped furnace mouth is arranged in the furnace mouth frame, and the interior of the barrel-shaped furnace mouth is communicated with the interior of the ladle body. The barrel wall of the ladle body and the barrel wall of the barrel-shaped furnace mouth are internally and jointly provided with an electromagnetic induction coil which is spirally wound; according to the invention, the mobile pouring equipment is adopted, the problem of poor casting quality caused by movement of a sand mold is solved, and meanwhile, the turnover pouring ladle with stable pouring is adopted, so that the situation that molten metal is wasted due to deviation of pouring is avoided.

The utility model provides a grinding head quick-changing structure of an internal grinding machine, and belongs to the technical field of grinding machines. One end of the main shaft is connected with the chuck rod with the clamping end, the clamping end is arranged in a barrel shape, the outer side wall of the clamping end is provided with the clamping thread, the outer side wall of the clamping end is of the conical structure with the deformation grooves, the clamping thread is provided with the quick-release nut in a matched mode, and the quick-release nut is arranged on the outer side wall of the clamping end. Due to the fact that the nut is arranged on the clamping end, when one end of a clamping rod of the grinding head is inserted into the clamping end, the clamping rod can be clamped or loosened by screwing the nut, a polygonal inserting hole is formed in the barrel bottom of the clamping end, a polygonal inserting head is arranged at the end of the clamping rod, and circumferential limiting can be achieved by inserting the polygonal inserting head into the polygonal inserting hole. By means of the structure, the grinding head installation requirement can be met, synchronous rotation of the grinding head and the chuck rod can be achieved, only the quick-release nut needs to be screwed during disassembly and replacement, operation is easy, the replacement efficiency is higher, and the grinding head quick-release requirement is met.

The utility model discloses a medical oncology catheter fixator in the technical field of fixators, which comprises a bottom plate and a catheter fixing barrel, a plurality of fitting plates are integrally formed at the edge of the bottom plate, and a spherical block is welded at the upper end of the bottom plate. Rotation limiting installation of the clamping ball body is conducted through the spherical block at the upper end of the bottom plate, the pipe containing groove formed in one side of the spherical block and one side of the clamping ball body facilitates placement of a guide pipe, the upper end of the clamping ball body is connected with the pipe fixing barrel, the pipe fixing barrel and the movably-connected pipe clamping barrel form a circular barrel shape, and the pipe clamping barrel is connected with the clamping block in a matched and clamped mode through the clamping jaw. The pipe fixing barrel and the pipe clamping barrel can rotate in multiple directions in the spherical block through the ball clamping body, the device is suitable for deflection of the guide pipe placement direction at multiple angles, one side of the spherical block is eccentrically connected with the eccentric wheel through the mounting groove, the ball clamping body is stably clamped, and therefore the device can stably fix the guide pipe, and the guide pipe is prevented from shaking and deflecting; the fixing operation is convenient.

The utility model discloses an aluminum ash harmless treatment device, and belongs to the technical field of aluminum ash treatment. The innocent treatment device is in a sealed barrel shape, a feeding port and an exhaust port are formed in the upper portion of the outer portion of the innocent treatment device, and the exhaust port is communicated with a gas treatment system. A heating device, a stirring device, an ultrasonic device and an aeration device are arranged in the sealed cylinder. Meanwhile, a liquid inlet and an aeration air inlet are formed in the side face of the sealed cylinder, and a discharging opening is formed in the lower portion of the sealed cylinder. According to the utility model, the ultrasonic device is coupled with the aeration device, so that the removal efficiency of harmful substances in the aluminum ash is effectively improved, the defect of the traditional aluminum ash treatment equipment in the removal efficiency aspect is overcome, and a more efficient and reliable device is provided for harmless treatment of the aluminum ash.

The utility model discloses a purifying and filtering device for processing ginger oil of compound seasoning, which relates to the technical field of ginger oil processing and comprises a device body, and the device body comprises a purifying tank, a sealing cover and a filtering frame; the sealing cover is arranged on the purification tank, the filtering frame is arranged in the purification tank, and a feeding hole is formed in the sealing cover; the filter frame comprises a barrel and a plurality of filter hoppers, the barrel is in a hollow barrel shape, the plurality of filter hoppers are longitudinally arranged in the barrel, and the number of meshes of the plurality of filter hoppers is sequentially decreased from top to bottom; a connecting seat is arranged above the uppermost filter hopper, a plurality of connecting rods fixedly connected with the inner wall of the barrel are arranged on the connecting seat in a circular array mode, a rotating shaft is arranged on the connecting seat, and a motor fixedly connected with the rotating shaft is arranged at the top of the sealing cover; an oil discharge pipe and a slag discharge pipe are respectively arranged at the bottoms of the two sides of the purification tank, so that a function of filtering for multiple times is realized, filtering and purification are easy and rapid, waste of oil products is avoided, and a filter screen is convenient to clean.

The igniter for the cupping glass comprises a base, a storage tank is fixedly arranged at the top end of the base 1, a connecting pipe is arranged at the top end of the storage tank in a penetrating mode, the bottom of the connecting pipe extends into the inner bottom of the storage tank, and a fixing base is fixedly arranged on the outer surface of the top of the connecting pipe in a sleeved mode. The top of the connecting pipe is further sleeved with alcohol cotton arranged in a barrel shape, the outer surface of the alcohol cotton is further sleeved with a barrel-shaped steel mesh, an ignition assembly is arranged on the storage tank, and leakage holes are formed in the outer surface of the top of the connecting pipe. Compared with the prior art, the ignition device has the advantages that alcohol cotton can be soaked with alcohol for ignition operation through the designed ignition assembly, the ignition assembly and combustible materials are integrally used, the ignition assembly can be directly used for ignition in the using process, a lighter does not need to be prepared or found for ignition, operation is more convenient due to automatic ignition, and the ignition device is more energy-saving and environment-friendly. And the object searching time is saved, so that the working efficiency is improved.

The invention relates to the technical field of glass fiber winding devices, in particular to a non-stop glass fiber winding device and a multi-spinning-cake winding method. Comprising a plurality of fiber guiding parts and a winding roller, each fiber guiding part corresponds to a plurality of winding areas of the winding roller, glass fibers are guided through the fiber guiding parts, a plurality of yarn balls are formed on the winding roller at the same time, and when the winding roller is replaced, the glass fibers are temporarily stored through limiting and guiding parts; a tensioning assembly is arranged between the fiber guiding part and the winding roller, the fiber guiding part comprises a guiding rod and a guiding roller, the guiding roller is in a prism barrel shape, a guiding belt is arranged on the side face of the guiding roller, glass fibers are wound on the guiding roller after being guided by the guiding rod, and the guiding belt drives the glass fibers to move in the length direction of the guiding roller. When the winding roller is replaced, the glass fiber and the winding roller are squeezed and limited through the limiting assembly, the winding position of the glass fiber is adjusted through the guide belt, and the glass fiber is prevented from loosening.

The invention provides a waste-free filter screen production process which comprises the following steps: rolling a stainless steel sheet into a cylindrical stainless steel cylinder, and welding and fixing two butted ends; the two ends of the stainless steel cylinder are subjected to edge curling treatment to form outer turned edges; the middle position of the stainless steel cylinder is cut, and two cup opening components with the same size are cut out; uniformly punching a plurality of filter holes in the stainless steel sheet; rolling the stainless steel sheet punched with the filter holes into a barrel shape, and welding and fixing the two butted ends to form a filter screen barrel; the cup opening component is assembled at the upper end of the filter screen cylinder, and the joint of the cup opening component and the filter screen cylinder is welded and fixed; stretching the stainless steel wafer to form a bottom cover with an upper opening; the upper opening position of the bottom cover is subjected to edge curling treatment to form an inner turned edge; the bottom of the bottom cover is punched, so that a plurality of filter holes are punched in the bottom of the bottom cover; rolling the side surface of the bottom cover to form a convex clamping rib on the side surface; and the bottom cover is clamped at the lower end of the filter screen cylinder through the clamping ribs.

The invention provides a novel suspension packer which comprises a mandrel in a barrel shape. The upper joint sleeves the outer side of the upper end of the mandrel and is fixed with the mandrel; the connecting sleeve sleeves the outer side of the upper joint and is fixed with the upper joint; the lower end of the setting push cylinder is connected with the connecting sleeve through threads; the locking device comprises a locking ring seat and a locking ring; the upper slip device comprises an upper slip seat, an upper pressing plate and an upper slip; the upper cone sleeves the mandrel and is fixed with the mandrel through a shear pin, the outer diameter of the upper end of the upper cone is smaller than that of the lower end of the upper cone, and the lower end of the upper slip is positioned on the outer side of the upper end of the upper cone and is fixed with the upper end of the upper cone through the shear pin; a rubber sleeve assembly; the lower cone is located below the rubber sleeve assembly, and the lower cone is arranged outside the core shaft in a sleeving mode and fixed to the core shaft through a shear pin; and the lower slip device is positioned below the lower cone and comprises a lower guide ring and a lower slip. According to the novel suspension packer, the technical problem that the packing effect of an existing packer is not reliable enough can be solved.

A milling tool includes a main body and a plurality of cutting inserts with respective cutting edges. The main body has an end face and a barrel-shaped curved lateral face. A first group of the plurality of cutting inserts are fastened on the end face, a second group of the plurality of cutting inserts are fastened on the barrel-shaped curved lateral face, and the respective cutting edges describe a barrel shape. Each one of the plurality of cutting inserts may be designed as an indexable insert.

The utility model relates to pipeline anticorrosion technical field, especially a kind of cathodic protection test pile structure, including support pipe;Support pipe inside upper end is equipped with terminal block;The four terminal ends of terminal block back surface are respectively used to be connected with the four detection lines that go up into from the lower end of support pipe, and the two terminal posts of terminal block surface are respectively used to be connected with the terminal pen of multimeter;Support pipe upper end is equipped with the protection cover of barrel shape;The position of support pipe opposite terminal block surface is equipped with let position opening, and the position of protection cover opposite let position opening is equipped with operation opening and is hingedly installed with cover plate;It is equipped with mounting pipe in support pipe, and the inner peripheral wall of mounting pipe has two protruding blocks, and the mounting protruding block formed by protruding on the upper end both sides of terminal block is respectively hung and installed on protruding block;The utility model has the characteristics that terminal block can be more conveniently installed and disassembled, and better sealing effect can be achieved.