127 results about "Bakelite" patented technology

The invention relates to a surge protector withstand voltage test system and method, and belongs to the technical field of surge protectors, the system comprises a test tool, the test tool comprises a tool body, a pneumatic execution component and a PCB function board, the tool body is made of bakelite, metal handles are arranged on the two sides of the tool body, and a detachable cover plate is fixed to the bottom of the tool body through hinges and lock catches; a wiring groove is formed in the inner side of the cover plate; the pneumatic execution component comprises a double-piston cylinder, a slide rail, a clamp assembly and an elastic conductive elastic needle; the double-piston cylinder drives the clamp assembly to linearly move along the X direction through the slide rail so as to clamp the surge protector to be tested; the elastic conductive elastic needle is fixed on the clamp assembly, the head of the elastic conductive elastic needle is in elastic contact with an exposed contact of the tested surge protector, and the tail of the elastic conductive elastic needle is connected to the PCB function board through a wire; the PCB function board comprises a high voltage constant current source circuit, a multipath relay switching circuit and an MCU control module.

The invention provides a bakelite guide rail fault monitoring method and system, and relates to the technical field of fault detection, and the method comprises the steps: building a digital connection between a monitoring platform and a distributed sensor network; collecting multi-dimensional physical quantities during operation of the guide rail, and constructing a state information base; generating an abnormal state information base; calling the visual sensor group to collect a bakelite guide rail fault section image according to the abnormal sequence value, and obtaining a guide rail part image set; analyzing the guide rail part image set to obtain a guide rail fault cause library; performing correlation analysis according to the abnormal state information base and the guide rail fault cause base to obtain a guide rail fault model; and generating a fault maintenance scheme according to the guide rail fault model, and feeding back the fault maintenance scheme to the monitoring platform. The technical problems that in the prior art, a monitoring mode is not accurate and comprehensive enough, data processing capacity is lacked, judgment is slow and errors are prone to being generated due to the fact that a system mature fault model is lacked are solved.

The invention discloses an anti-loose connector, belongs to the technical field of connectors, and is used for solving the problems that the number of adaptive input lines of an existing large-current connector is single, and the sealing reliability is insufficient. The anti-loose connector comprises a shell, an input wire, an output copper needle and a plurality of conversion conductors, the input wire penetrates through a wire sleeve and then is inserted into the shell, and the output copper needle is arranged in the shell and is conductively connected with the conversion conductors. Each conversion conductor is provided with an output end and an input end with an elastic deformation part, a single conversion conductor can be independently connected with an input wire and an output copper needle, and a single input wire can be inserted into a duplex gap between every two adjacent conversion conductors and is simultaneously connected with two output copper needles. And a black bakelite plug bush and a rubber ring are also arranged in the shell, so that double-gap sealing is formed. The connector can flexibly realize two-wire input and four-wire output or four-wire input and four-wire output, is reliable in sealing, can prevent input wires from loosening and external water vapor and dust from invading, and meets the large-current transmission requirements in the fields of new energy storage industrial automation and the like.

The utility model belongs to the technical field of plasma rotating electrode powder manufacturing equipment, and relates to a vacuum dynamic sealing structure of a plasma gun for powder manufacturing, which comprises an external powder blocking module and a dynamic sealing module, the external powder blocking module consists of a first powder blocking plate, a powder blocking ring and an insulating powder blocking plate, the first powder blocking plate is fixed at the top of a plasma gun body to form an arc-shaped shielding surface, and the dynamic sealing module is fixed at the top of the plasma gun body. The powder retaining ring coaxially sleeves the positive electrode of the plasma gun body and forms an annular gap type powder blocking structure with the insulating powder retaining plate; the dynamic sealing module is sequentially provided with a dynamic sealing installation metal cylinder, an insulating cylinder and a sealing assembly from outside to inside in the radial direction of the plasma gun body, the insulating cylinder and the dynamic sealing installation metal cylinder form a step-shaped sealing structure, and vacuum sealing and electrical isolation are achieved between the dynamic sealing module and the external powder blocking module through bakelite and an O-shaped sealing ring. The vacuum dynamic sealing structure provided by the utility model has the advantages of powder isolation, reliable sealing, no burning loss short circuit and no need of vacuum grease auxiliary sealing lubrication.

The invention provides a mold for manufacturing a carbon fiber medical bed board. The mold is used for solving the problems that a metal mold is high in manufacturing cost, long in production period, heavy in weight and slow in mold temperature heat dissipation. The main body structure is formed by processing non-metal bakelite; the movable block comprises a bakelite movable block or a metal movable block; the upper surface of the main body structure is concave inwards to form a molded surface, a bakelite baffle is arranged at one end of the molded surface in the length direction, a bakelite movable end block is arranged at the other end of the molded surface in the length direction, and the bakelite movable end block, the bakelite baffle and the upper surface of the main body structure are combined to form a cavity. The lower surface of the cavity is arranged in a shape of a lower surface of a carbon fiber medical bed board to be manufactured, and the upper surface of the cavity is arranged in a shape of a cambered surface of a corresponding product.

The utility model provides an isolating switch protective cover, which relates to the technical field of isolating switches, and comprises a ceramic protective resistance cover, the interior of the ceramic protective resistance cover is hollow, a bakelite ring is fixed in the middle between the inner walls of the ceramic protective resistance cover, a bakelite sleeve is fixed between the inner walls of the bakelite ring, and the inner walls of the bakelite sleeve are provided with a protective cover. The top of the bakelite ring is provided with a plurality of penetrating bayonets which penetrate through the bakelite ring to the bottom, bimetallic strips are clamped in the penetrating bayonets, the bimetallic strips are bent and deformed to push the baffle ring and the movable ring in opposite directions, and then the copper guide rod and the copper column are separated from each other, so that the purpose of cutting off a circuit is achieved, the service life of the circuit is prolonged, and the service life of the circuit is prolonged. And the connection between the copper guide rod and the copper column is located in the ceramic protective resistance cover, and electric arc generated during opening and closing cannot be leaked to the outside under the insulation effect of the ceramic protective resistance cover, so that the safety of external electric appliances and facilities is protected.

The utility model discloses a multifunctional miniature portable gas stove electric ceramic stove bottom support, a bottom support main body is installed on a supporting object, the bottom support main body comprises a bearing part, a transition part and a bearing part from top to bottom, the bearing part and the transition part are fixedly installed, the transition part and the bearing part are fixedly installed, the bearing part and the transition part are annular, and the bearing part and the transition part are annular. The annular middle part is used for installing a miniature portable gas stove or a miniature electric ceramic stove, a heating source installing hole used for connecting the miniature portable gas stove or the miniature electric ceramic stove with a heating source is formed in the bottom of the bearing part, and a main body switch adjusting hole used for adjusting a heating source switch is formed in the side face of the bearing part. The utility model has the advantages that the sunken structure is adopted, the high-temperature-resistant and non-conductive bakelite material is selected as the material, and the portable gas stove and the electric ceramic stove are ingeniously integrated into one container or gas or electricity according to the characteristics of the portable gas stove and the electric ceramic stove, so that the safety and the convenience are realized.

The utility model discloses a safe bakelite short-circuit-preventing starter, which comprises a shell, a clamping cover is arranged on the shell, an inner cavity in the shell is sealed through the clamping cover, and the shell is a bakelite shell. The chip further comprises a chip and electrode assemblies, the electrode assemblies comprise the first electrode assembly and the second electrode assembly, and the opening distance L between the first electrode assembly and the second electrode assembly ranges from 10 mm to 12 mm. According to the utility model, through the support table and the insert, the chip is more stable and stronger in bearing capacity after being installed, the open space L is within the range of 10mm to 12mm, the short-circuit fault caused by large current impact can be effectively resisted, the occurrence of electrode arc ignition and shell combustion fire accidents can be effectively blocked, the electrode adopts a column-type chamfered convex groove surface (or convex point), and the chip is more stable and more stable after being installed, so that the service life of the chip is prolonged. Therefore, the chip can be effectively prevented from being scratched, and the production of automatically assembling the chip can be conveniently realized.

The utility model discloses a glass lens binding jig, which relates to the technical field of glass lens cold working, and comprises a left base and a right base, a left bushing is fixedly arranged at the side end part of the left base, a right bushing is fixedly arranged at the side end part of the right base, at least two guide plugs are fixedly arranged at the side end part of the right base, and the guide plugs are inserted into the left bushing and the right bushing. The shape of one end of the left lining and the shape of one end of the right lining are matched with the shape of the lens, the lens can be better fixed in the machining process, it is guaranteed that the position of the lens is stable in the machining process, the base made of the copper material can guarantee connection firmness and stability, the lining made of the bakelite material is relatively soft, and the service life of the lens is prolonged. The optical surface of the lens can be prevented from being scratched in the machining process, the left base and the right base are connected and fixed to machining equipment through the positioning seam allowances and the fine threads in the left base and the right base, and when the left lining and the right lining need to be folded, the guide plug can be inserted into the positioning hole, and it is ensured that the left lining and the right lining can be tightly attached.

The utility model relates to the technical field of blister packaging, in particular to a mold mounting disc of a blister packaging machine, which comprises a mounting disc body, a power supply hole is arranged in the center of the mounting disc body, and limiting square plates are fixedly connected to the upper, lower, left and right positions of the mounting disc body respectively. According to the mold mounting disc of the blister packaging machine, through the arrangement of the fixed winding column, the movable winding column, the wedge block, the sliding block, the guide rod, the spring, the traction support and the short column, a bakelite mold can be conveniently and additionally mounted on the mold mounting disc of the blister packaging machine, and the mold mounting disc is convenient to use and high in practicability. And in the process of connecting the connecting wire to the power supply circuit, under the connection limitation of the wire arrangement square frame and the sliding groove, the overlong connecting wire connected with the bakelite mold can be connected to the wire arrangement structure, so that the overlong connecting wire can be orderly arranged and connected, and the problems that the connecting wire is connected in a disordered mode, a protruding part makes contact with a hot pressing plate, and the connecting wire is scalded and damaged are solved.

The utility model discloses an adjustable rotor supporting device, which comprises a bearing box, a rotor, rollers, bolts, roller supporting frames, a fixed steel plate, a rolling bearing, a steel plate and a tie bar, the rotor is connected with the bearing box, the two roller supporting frames are respectively arranged at two ends below the rotor, the bottoms of the roller supporting frames are connected with the steel plate welded on the bearing box, and the roller supporting frames are H-shaped. Grooves are formed in the middles of the tops of the two ends, two bolt holes are formed in each of the two sides of each groove and used for fixing a rolling bearing, four bolt holes are formed in the middle of each groove and used for being connected with tie bars, and eight bolt holes are formed in the bottom of each groove and used for being connected with steel plates welded to a bearing box. The four fixed steel plates are provided with convex surfaces in the middle and bolt holes in the planes at the two ends, and are connected with the roller support frame through bolts; and the two rollers are bakelite rollers, are connected with the roller support frame through rolling bearings, and are arranged at the two ends below the rotor.

The utility model relates to the technical field of jigs, and discloses a frame welding type bakelite jig which comprises a fixing plate, the top end of the fixing plate is fixedly connected with a limiting supporting frame, the top of the limiting supporting frame is movably connected with a rotating frame, sliding grooves are formed in the left side and the right side of the rotating frame, inner cavities of the sliding grooves are connected with sliding blocks in a sliding mode, and the sliding blocks are connected with the limiting supporting frame in a sliding mode. An inner cavity of the sliding block is in threaded connection with a first threaded rod, the surface of the first threaded rod is movably sleeved with a clamping frame, and the sliding block can move in the axis direction of the sliding groove. A plurality of PCBs are arranged in inner cavities of a first groove and a second groove in parallel, then a first threaded rod is screwed down, the first threaded rod slightly descends, a clamping frame is pressed, the clamping frame and an anti-slip strip are tightly attached, the clamping frame cannot move, gaps can be adjusted according to the PCBs of different specifications, and the clamping efficiency is improved. And therefore, the PCBs with different specifications can be fixed.

The application relates to the field of electronic components, in particular to a large-power inductance transformer structure which comprises a bakelite framework, a middle shaft hole is formed through a top wall of the bakelite framework, first and second magnetic cores are arranged at two ends of the bakelite framework, a magnetic middle column of the first magnetic core and a magnetic middle column of the second magnetic core penetrate into the middle shaft hole and are butted; an inductive coil assembly is wound on the bakelite framework, a plurality of mounting holes are formed in the bottom of the bakelite framework, and the first end and the tail end of the inductive coil assembly are respectively welded on a PCB through insertion into the mounting holes. The application has the effects of improving the working efficiency of the transformer and reducing the loss.

A glue-coating tray and a glue-coating method for bonding aluminum sheets to phenolic bakelite retainers, and it relates to the field of bearing processing technology. The present invention is to solve the problem that the existing phenolic bakelite retainers are unevenly coated with glue during the bonding process with aluminum sheets, which affects product quality, and that manual glue squeezing easily causes the glue to solidify. The present invention includes a base plate and a plurality of positioning mechanisms, and the plurality of positioning mechanisms are evenly distributed in a matrix and fixed on the upper end face of the base plate. The positioning mechanism includes a fastening bolt, a positioning seat and a pressure plate. The positioning seat is fixed on the upper end face of the base plate, and the upper end face of the positioning seat is provided with a positioning boss, and the middle part of the upper end face of the positioning seat is provided with a threaded through hole. The pressure plate is arranged directly above the positioning seat, and the middle part of the upper end face of the pressure plate is provided with a light hole, and a fastening bolt is inserted in the light hole, and the end of the fastening bolt is threadedly connected to the threaded through hole. The present invention is used for bonding phenolic bakelite retainers to aluminum sheets.

The invention discloses a self-heating device applied to pretreatment of clenbuterol detection and an implementation method thereof, and the self-heating device comprises a bottom groove and an upper groove and is made of high-temperature-resistant bakelite. The bottom groove is used for containing a self-heating bag and water and used for heating, the upper groove is used for containing a centrifugal tube containing an animal tissue sample, and the bottom groove and the upper groove are connected through a clamping groove. The outer diameter of the bottom groove is 100 * 35 * 100mm, the inner diameter of the bottom groove is 90 * 30 * 90mm, the outer diameter of the upper groove is 110 * 5 * 110mm, the inner diameter of the upper groove is 90 * 30 * 90mm, nine round test tube holes and a small exhaust hole are formed in the top of the upper groove, the diameter of the round hole of the upper groove is 12mm, the diameter of the exhaust hole is 2mm, a clamping groove is formed in the joint of the lower part of the upper groove and the bottom groove, the width of the clamping groove is 6mm, and the depth of the clamping groove is 5mm. According to the invention, the problem that the sample needs to be heated and extracted when the colloidal gold immunochromatography technology is used for detecting clenbuterol in animal tissues in a non-experimental environment is well solved, and the simplicity and the timeliness of operation are greatly improved.

The invention relates to a gas meter comprising a sensor and a numerator with LCD display connected to the sensor, which is used to reduce the cost by eliminating the rotary joint gear, axle gear assembly, magnetic coupling assembly and mechanical numerator gears and calibration gears and to allow measurement during the rotation of the bakelite (rotating disk).

The utility model discloses a tung oil modified resin hot-pressed bakelite plate, which relates to the field of bakelite plates and comprises a bakelite plate body, a clamping component is arranged at the top of the bakelite plate body, and the clamping component comprises four slots arranged at the top of the bakelite plate body. By arranging the clamping assembly, when the cutting pad needs to be installed, four inserting blocks at the bottom of the cutting pad can be inserted into inserting grooves at the same time, when the inserting blocks are inserted, clamping blocks can be pushed to move so that the clamping blocks can extrude spring rods, after the inserting blocks are completely inserted into the inserting grooves, the clamping blocks can tightly clamp the inserting blocks under the counter-acting force of the spring rods, and therefore the cutting pad can be installed. During disassembly, the cutting pad can be disassembled and replaced only by pulling the cutting pad upwards and moving the inserting block out of the inserting groove, the disassembly and assembly process is simple and convenient, and the situation that the cutting pad is difficult to take out due to the fact that the attraction force of a magnet is large when the magnet is used for attraction is avoided; and therefore, the taking-out efficiency of the cutting pad is improved.

The utility model relates to the technical field of plywood automatic punching drilling and milling integrated machine, disclose plywood automatic punching drilling and milling integrated machine, the utility model discloses a follow -up dust extractor, the follow -up dust extractor is configured at the lower end surface of drilling and milling motor and is sleeved in the outside of drill bit or milling head, the follow -up dust extractor is equipped with a cavity that is open downward, the cavity is connected with suction fan through suction hose, the cavity forms the negative pressure suction force in and carries out the cleaning to the wood chip generated by punching or milling. The utility model adopts the unique structure design, its outside is sleeved in the drill bit when working, when the wood chip splashes, the annular surrounding structure of suction guide sleeve can block the big particle wood chip, and the design of suction guide sleeve makes the wind more concentrated near the cutting position, compared with prior art effectively improve the probability of absorbing wood chip, so the selection requirement of matched dust collection fan can be low.

The bakelite packaging box comprises a bakelite packaging box body and a supporting plate base arranged at the bottom of the bakelite packaging box body, welding plates are arranged on the two sides of the bottom of the supporting plate base respectively, sliding ways are arranged on the inner sides of the welding plates respectively, and sliding ways are arranged on the two sides of the inner side of a bottom frame respectively. Sliding threaded blocks are arranged on the connecting rods, pulleys are arranged on the outer sides of the upper ends of the inner supporting frames, connecting rods are arranged at the upper ends and the lower ends of the outer supporting frames, pulleys are arranged on the outer sides of the lower ends of the outer supporting frames, lead screws are arranged between the sliding threaded blocks and the fixing blocks, and a rocking handle is arranged at one end of each lead screw. According to the bakelite packaging box, the lead screw can be driven to rotate through the grab handle, the sliding threaded block is driven to axially move, then the inner supporting frame and the outer supporting frame are pulled through the connecting rod to achieve synchronous lifting, the supporting plate base is stably lifted, the bakelite packaging box is far away from the humid environment of the ground, and the service life is effectively prolonged.

The utility model relates to a clamping device for mounting bracket type workpieces, which belongs to the technical field of bakelite processing and comprises an adsorption base, a sucker is bolted at the top of the adsorption base, an adsorption groove is arranged at the top of the sucker, and a scrap collecting net is embedded in the adsorption groove. According to the clamping device for the mounting bracket type workpieces, a chipping collecting net is embedded in an adsorption groove in the top of a suction cup, wood chips are isolated outside a vacuum channel through the chipping collecting net in the machining process, the chipping collecting net is mounted in the adsorption groove through mounting screws, and when the chipping collecting net needs to be cleaned, the chipping collecting net is prevented from being damaged; according to a common clamping device for the mounting support type workpiece with the vacuum suction cup, when the workpiece is placed on the adsorption face of the vacuum suction cup and machined, once through hole machining needs to be carried out on the workpiece, chippings generated during machining can fall into the suction cup through a through hole, and the machining efficiency is improved. And the problem that a vacuum channel is blocked is solved.

The utility model discloses a profiled positioning bottom suspension clamp relates to positioning fixture field. The profiled positioning bottom suspension clamp, the middle part of bakelite clamp is equipped with profiled positioning groove, and the bottom of profiled positioning groove is integrally formed with the back -shaped convex, makes the bottom of profiled positioning groove form the empty slot for overhead workpiece, makes workpiece top surface and bakelite clamp top surface flush when workpiece is placed on the back -shaped convex top simultaneously. The profiled positioning bottom suspension clamp, the bottom shell is opposite profiled positioning groove and inserts, makes the frame part of bottom shell and the top of back -shaped convex contact, the bottom shell lower surface non -pure flat part is in the empty slot at this time, and the bottom shell top and bakelite clamp top flush, when carrying out air tightness detection, will not appear bottom shell and clamp inner bottom complete contact and block vacuum detection station to lead to the error situation of vacuum detection, can guarantee even point glue simultaneously when the bottom shell and frame assembly glue.

The utility model discloses a pushing piston and a low-temperature refrigerator, and the pushing piston is arranged in an air cylinder and comprises a first-stage pushing piston and a second-stage pushing piston; the first-stage pushing piston is installed in the first-stage cylinder body, and the second-stage pushing piston is installed in the second-stage cylinder body. A first cylindrical piston shell of the first-stage pushing piston and a second cylindrical piston shell of the second-stage pushing piston are shells made of one or more of polyethers, fluoroplastics, polyimides, polysulfides and polyamides as a whole. Or the first cylindrical piston shell and the second cylindrical piston shell are each of a composite structure with two or more layers, one layer is a bakelite material shell, and the other layers are shells made of one or more of polyether, fluoroplastic, polyimide, polysulfide and polyamide. According to the scheme, the water absorption amount of the pushing piston can be reduced, the production efficiency is improved, and meanwhile the reliability of long-term operation is improved.

The utility model relates to the technical field of bakelite plates, in particular to an insulation type bakelite plate for a circuit board, which comprises a bakelite plate, a first through groove and a second through groove are respectively arranged on the left side and the right side of the bakelite plate, a fixing frame is connected inside the first through groove in a plugging manner, and a plugging frame is fixedly connected inside the fixing frame. Baffles are fixedly connected to the top end and the bottom end of the inner side of the inserting frame, a fixing plate is connected to the inserting frame in an inserting and pulling mode, a clamping block is fixedly connected to the outer portion of the fixing plate, a supporting plate is fixedly connected to the outer portion of the clamping block, and a first clamping hook is fixedly connected to the end, away from the clamping block, of the supporting plate. One end, far away from the clamping block, of the fixing plate is fixedly connected with an extension rod, one end of the extension rod is fixedly connected with a second clamping hook, compared with an existing insulation type bakelite plate for the circuit board, the insulation type bakelite plate for the circuit board has the advantages that through the design of the clamping hooks and the stabilizing blocks, two groups of bakelite plates can be quickly spliced, and the overall practicability is greatly improved.

The application discloses a riveting machine for riveting a metal panel and a bakelite cover of a grill, which comprises the riveting machine and a die installed on the riveting machine, the die comprises an upper die plate and a lower die plate, a punch capable of moving up and down is installed on the lower die plate, the punch is sleeved with the bakelite cover, the metal panel is placed on the upper end of the bakelite cover, the metal panel is located below the upper die plate, the upper end of the bakelite cover is provided with a plurality of insertion holes penetrating up and down, the outer edge of the metal panel is provided with a plurality of insertion pins equal to the number of the insertion holes, the insertion pins are inserted into the bakelite cover after penetrating through the insertion holes, a plurality of wedges are installed in the punch, the wedges are located on the inner side of the insertion pins, when the upper die plate drives the punch to move downwards, the wedges are in contact with the insertion pins and extrude the insertion pins outward, so that the insertion pins are twisted and abut against the inner wall of the bakelite cover.

The application belongs to the technical field of high polymer materials, and discloses a rubber pen tongue, a preparation method thereof and a pen with the rubber pen tongue. Through step (1), mixing and dense mixing, dense mixing particles are obtained; through step (2), a pen tongue blank is prepared; through step (3), a hydrophilic polymer filter membrane is cut into a strip-shaped polymer filter strip and wound on the pen tongue blank to obtain a semi-finished product; and through step (4), the semi-finished product is heated to 100 DEG C to 250 DEG C under vacuum condition, and kept warm for 3 min to 5 min, and then the rubber pen tongue is obtained after trimming after cooling. The scheme omits a complicated surface hydrophilic modification process, and has the advantages of simple process flow, easy realization, stable product quality, low requirement on equipment, and environmental protection of the process method and material selection.

This utility model discloses a high-strength, low-deformation slotted commutator, relating to the field of commutator technology. Specifically, it includes an integrally injection-molded bakelite powder matrix and slotted commutator segments arranged circumferentially on the outer circumference of the bakelite powder matrix. Interval slots with an insulating layer attached to the inner surface are provided between adjacent slotted commutator segments. A deformable elliptical box is installed on the inner side of each slotted commutator segment, and the elliptical box is inserted into the outer circumference of the bakelite powder matrix. A suspended cooling box is provided inside the elliptical box, which stores non-conductive coolant. The cooling box can melt and rupture when overheated, allowing the non-conductive coolant to flow out, thus accelerating heat exchange efficiency. Multiple spiral-shaped hot-melt wires are installed between the outer side of the cooling box and the inner wall of the elliptical box. A ventilation slot penetrating the bakelite powder matrix is ​​provided on the outer side of the elliptical box away from the slotted commutator segments, and a heat sink is provided within the ventilation slot to cool the elliptical box.

The utility model relates to the technical field of bakelite plate processing, in particular to a bakelite plate drilling machine which comprises a working table, supports are symmetrically and fixedly connected to the outer portion of the working table, lead screws are connected to the interiors of the supports in a threaded mode, driving ends are connected to the exteriors of the lead screws in a threaded mode, and sliding rods are connected to the interiors of the driving ends in a sliding mode. A telescopic rod is fixedly connected to the interior of the driving end, a drilling table is fixedly connected to the bottom of the telescopic rod, a drilling strip is rotatably connected to the interior of the drilling table, a limiting rod is slidably connected to the bottom of the drilling table, a spring is arranged outside the limiting rod in a sleeving mode, and a connecting plate is fixedly connected to the bottom of the limiting rod; compared with an existing bakelite plate drilling machine, through the design of the connecting plate and the lantern ring, chippings generated by a bakelite plate can be quickly blocked, and the overall practicability is greatly improved.

The utility model discloses a fireproof and spill-proof pot, and relates to the technical field of kitchen ware. Comprising a cooker assembly, the cooker assembly comprises a cooker body, a circle of protruding edge is arranged at a cooker opening of the cooker body, at least three steps are arranged on the protruding edge at equal intervals, the bottom of a cooker cover sinks into the cooker opening and is lapped on the three steps, exhaust holes are formed in the cooker cover, and cooker lugs are arranged on the cooker body. Due to the arrangement of the fire guide holes, when the gas stove cooks, gas flames are discharged from the fire guide holes along the pot wall, the extended pot lugs cannot be burnt out, the extended pot lugs made of bakelite are protected from being burnt out, the pot cover is erected on the three steps of the pot body during cooking, a circle of the bottom of the pot cover is communicated with the outer portion of the pot cover, and the pot cover is lower than a pot opening. When overflowing reaches a certain amount, pressure can be formed to press the overflowing water back into the pot, meanwhile, the exhaust holes are higher than the plane of the pot opening, the exhaust holes can conduct normal exhaust, the structural design is ingenious, economic benefits are met, and the application prospect is wide.

The utility model relates to the technical field of tobacco cutter equipment, and discloses a blowing dust removal and heating moisture removal device in a knife roll of tobacco cutter equipment, an air inlet through hole and an air outlet through hole are respectively arranged at two ends of a cutting drum, the air inlet through hole is used for being communicated with a compressed air source, and the air outlet through hole is used for being communicated with a main dust removal pipeline of a workshop; an air filtering pressure reducing valve, a heat exchange tank and an electromagnetic valve are sequentially communicated between the compressed air source and the air inlet through hole; the top of the heat exchange tank is provided with a compressed air outlet, the bottom of the heat exchange tank is provided with a compressed air inlet, a spiral heat exchange tube is arranged in the heat exchange tank, and two ports of the heat exchange tube penetrate through the top and the bottom of the heat exchange tank respectively to form a steam inlet and a steam outlet. The problem that in the prior art, the frequency of faults such as bakelite gear abrasion and tooth breakage is high is solved, the interior of a knife roller is kept clean and dry, the operation environment of a feed mechanism is good, continuous operation of shredding equipment is guaranteed, and the requirement for a shredding machine in the process is met.

The utility model relates to the technical field of electronic elements, and discloses a high-precision positioning spring bakelite ejector pin assembly which comprises an electric wood block, an annular groove is formed in the electric wood block, an ejector pin cylinder is connected to the inner side of the electric wood block in a sliding mode, and a rubber ring is fixedly connected to the outer side of the ejector pin cylinder. A base is fixedly connected to the bottom of the ejector pin cylinder, a connecting column is fixedly connected to the bottom of the base, a sliding disc is slidably connected to the interior of the ejector pin cylinder, an ejector pin head is fixedly connected to the top of the sliding disc, a lubricating assembly is arranged on the inner side of the ejector pin cylinder, and the lubricating assembly is used for adding lubricating oil to the outer side of the ejector pin head. According to the utility model, the ejector pin cylinder is assembled on the inner side of the electric wood block, so that the rubber ring is clamped into the inner side of the annular groove, the ejector pin cylinder has better stability after being assembled, and the top of the base is attached to the bottom of the electric wood block, so that the whole structure has a better positioning effect.