25results about How to "Prevent gnawing" patented technology

The utility model belongs to the technical field of medical instruments, and provides a trachea cannula tooth protective sleeve for anesthesia, which comprises an upper tooth socket and a lower tooth socket, the upper tooth socket is provided with an upper tooth socket matched with maxillary teeth, and the lower tooth socket is provided with a lower tooth socket matched with mandibular teeth; the occlusal surface of the upper tooth socket is provided with a front-back through first concave cambered surface, the occlusal surface of the lower tooth socket is provided with a front-back through second concave cambered surface, the first concave cambered surface and the second concave cambered surface are correspondingly arranged, and a cavity formed by the first concave cambered surface and the second concave cambered surface is matched with a trachea cannula. According to the trachea cannula tooth protection sleeve for anesthesia, damage to teeth can be reduced in the general anesthesia process, extrusion to the trachea cannula is avoided, the smoothness of the oropharyngeal airway is guaranteed, and meanwhile the opening degree of the protection sleeve can be adjusted, so that the gap between the upper tooth sleeve and the lower tooth sleeve is adjusted, shielding to the visual field in the trachea cannula process is reduced, and the safety of a patient is improved. And tracheal intubation operation is facilitated.

The utility model belongs to fan box field provides a fan box and inverter, including a plurality of fans, protective cover and fan mounting panel, wherein: fan mounting panel is equipped with a plurality of air vents, and the fan is one -to -one correspondence with air vent and is equipped on fan mounting panel, protective cover is located one side of fan mounting panel, and the protective cover includes main part and closed part, and the main part is integrally formed with fan mounting panel, and a half sealed chamber is formed in the main part, and the closed part is movably connected at the opening of half sealed chamber. Compared with prior art, the utility model has the advantages that the protective cover is used for protecting the wiring terminal of the inverter and the wire connected with the wiring terminal, which can effectively prevent the wiring terminal and the wire connected with the wiring terminal from being bitten by animals, thereby improving the stability of the inverter operation.

The utility model discloses a kind of without external installation's air conditioning hole waterproof, prevent insect and ant, beautifying device, belong to air conditioning hole protection technical field, including the outer sleeve installed in air conditioning pipe hole inside, the inner tube of the outer sleeve is slidably installed with inner sleeve, the limiting frame that the inner sleeve after adjustment is positioned is provided on the outer sleeve, the end side surface of the outer sleeve away from outer sleeve is distributed with the opening for passing through pull rope, inner soft rubber baffle pipe for closing opening is clamped in the inner tube of inner sleeve, the outer sleeve includes the outer tube for being installed in air conditioning pipe hole, outer tube soft rubber sleeve is installed at the position of inner wall surface, by optimizing structure design, inner sleeve includes the inner tube of sleeve connection in the inner tube of outer sleeve, realize whole indoor operation installation, effectively solve the water seepage, insect and ant invasion problem existing in existing air conditioning hole, and improve hole overall appearance degree, with adjustable simultaneously, adapt to the installation demand of different thickness wall.

The utility model provides an anti-rat and anti-termite cable for a photovoltaic system, and aims to solve the problem that after being laid, a traditional cable is bitten by rats and termites in the environment, so that the structure is damaged, and hidden dangers are caused to an electric power system. The cable mainly comprises a plurality of stranded tin-plated soft copper conductors located in the center, an insulating layer is wrapped on the periphery of each tin-plated soft copper conductor, a composite layer is wrapped on the periphery of each insulating layer, a sheath is wrapped on the periphery of each composite layer, and material master batches used for repelling rats and ants are added in the sheath and the composite layers. After the cable is laid, the sheath and the composite layer are both provided with material master batches, chemical odor for repelling rats and ants can be dissipated, the dissipation period is longer, and the service life is longer; even if the chemical rat repelling effect is weakened and the sheath on the outer layer is gnawed and broken, the composite layer can still play a good role in physical protection.

The utility model provides a visible temperature change safety cable, which relates to the technical field of cables and comprises a protective sleeve, a cable main body is fixed in the protective sleeve, a battery cell is arranged in the cable main body, an insulating layer is fixed on the outer wall of the battery cell, a flame-retardant layer is fixed on the outer wall of the insulating layer, a heat-insulating layer is arranged in the protective sleeve, and a heat-insulating layer is arranged in the heat-insulating layer. A wear-resistant layer is fixed to the outer wall of the heat insulation layer, a protection box is fixed to the outer wall of the protection sleeve, and a temperature sensor is installed in the protection box. Through the arrangement of the protection box, the temperature sensor, the temperature measurement probe, the display screen and the controller are all arranged in the protection box, the protection box can comprehensively protect the side face of the device, through the arrangement of the protection plate, the protection box can reach a sealed state, the device is prevented from being bitten by animals such as mice or being corroded by rainwater, the protection performance is better, and the service life of the device is prolonged. And through the arrangement of bolts, the protection plate can be taken out at any time, so that the temperature sensor, the temperature measurement probe, the display screen and the controller can be conveniently maintained.

A plant growth bin relates to the technical field of plant cultivation and comprises a growth bin body and a growth bin upper cover. The growth bin body comprises an outer cover shell and an inner cover shell, the size of the outer cover shell is larger than that of the inner cover shell, the bottom of the outer cover shell and the bottom of the inner cover shell are connected through an annular connecting block, an annular groove is formed between the outer cover shell and the inner cover shell, a lower partition plate is arranged at the lower end of the inner wall of the inner cover shell, and a certain number of lower through holes are formed in the lower partition plate. And the outline of the inner wall of the lower end of the growth bin upper cover is matched with the outline of the outer wall of the upper end of the outer housing. The product is used for whole-cycle growth of plants from seedling culture to maturity, protects seedlings from being influenced by severe weather such as hail and rainstorm, can be suitable for seedling culture growth of different types of plants, and is flexible in investment, and the planting scale is related to the product quantity.

The invention provides a lifting and rotating vehicle suitable for LNG cylinders, and belongs to the technical field of gas cylinder conveying. Comprising a bottom frame, a gear motor is fixed to the inner wall of the bottom frame, a top frame is rotationally connected to the top of the bottom frame, the bottom of the top frame is fixedly connected with the output end of the gear motor, the conveying mechanism comprises two rows of circular shafts rotationally connected into the top frame, the circular shafts are inclined, the two rows of circular shafts form a V shape, and conveying rollers fixedly sleeve the circular shafts. A jacking assembly is arranged in the top frame. Through the arrangement of the jacking assembly, after a workpiece is placed on the two rows of conveying rollers, the conveying rollers operate to convey the workpiece, in the conveying process, when the end of the workpiece is close to the conveying rollers, the jacking assembly jacks up the end of the workpiece to prevent the end of the workpiece from gnawing the surfaces of the conveying rollers, and after the end of the workpiece passes through the conveying rollers, the workpiece is conveyed to the conveying rollers. And the jacking assembly moves downwards to enable the workpiece to fall onto the conveying roller again.

The present invention belongs to the field of aviation precision manufacturing and processing technology, and in particular, it relates to a CNC milling method for deep through grooves of annular hollow thin-walled parts, including horizontally clamping the parts on a CNC machine tool workbench; selecting a U drill with a radius equal to the corner R of the deep through groove and installing it on the CNC machine, and using the U drill to process all the corners R in place; using an indexable milling cutter to rough mill the part groove, and reserving the side wall support margin and the groove bottom support margin; using an end mill I to perform layered processing on the part groove to mill the side wall support margin of the part groove; and an end mill II to mill the groove bottom support margin from the outside of the groove bottom of the part groove until the deep through groove is formed. This technical solution uses a layered processing method to ensure sufficient margin support during the processing of the side wall of the deep through groove, effectively overcomes the influence of stress changes and cutting forces in the part, improves the surface quality of the part, and plays an important role in reducing the subsequent benchwork and grinding workload.

The utility model discloses a new energy special cable for rail transit, which comprises a conductor, an inner shielding layer, an insulating layer, an outer shielding layer, a semiconductor shielding layer, an aluminum-plastic composite belt, a plastic anti-corrosion protective layer, an outer protective sleeve and a rat-proof steel wire, the inner shielding layer is wrapped on the outer side of the conductor, the insulating layer is wrapped on the outer side of the inner shielding layer, and the outer shielding layer is wrapped on the outer side of the semiconductor shielding layer. The outer shielding layer wraps the outer side of the insulating layer, the semiconductor shielding layer wraps the outer side of the outer shielding layer, the aluminum-plastic composite belt wraps the outer side of the semiconductor shielding layer, the plastic anti-corrosion protection layer wraps the outer side of the aluminum-plastic composite belt, and the outer protection sleeve wraps the outer side of the plastic anti-corrosion protection layer. Rat-proof steel wires are installed on the periphery of the interior of the outer protective sleeve at equal intervals, and mouse biting is prevented. The cable is reasonable in design, good in insulativity, capable of shielding current and preventing interference on nearby signal sources, good in durability due to the built-in anti-corrosion layer, and capable of preventing mouse biting due to the built-in steel wire of the outer protective sleeve.

The present application relates to a kind of narrow let-in knife slot blind hole precision reaming honing tool and honing method, belong to honing equipment technical field, to solve the technical problem of lack of special precision reaming honing process for 2-3mm narrow let-in knife slot blind hole, especially 10-40mm aperture blind hole in current industry.The present application includes tool body, tool body is the cylindrical structure of the cross section is round type, tool body includes connecting portion and honing portion along the body;Connecting portion is located at one side of tool body, for tool body clamping, honing portion is located at the end of the other side of tool body;Honing portion is annular honing section;The outside of tool body of honing section is provided with honing layer.The present application can realize narrow let-in knife slot blind hole high precision, high consistency, high surface quality stable processing, and is suitable for precision inner hole machining of hydraulic valve body, engineering machinery, precision mould and other parts.

The utility model relates to the field of valve installation, in particular to a connecting base suitable for a cylindrical valve of a wet-type alarm valve group, which comprises a connecting column, an integrally formed arc-shaped base is arranged on the lower portion of the connecting column, the arc-shaped base is used for being connected to the cylindrical valve, and a threading hole penetrates through the connecting column and the arc-shaped base. The utility model has the advantages that the matched base is specially designed and manufactured, so that the cylindrical valve is fixedly connected with the restraint pipeline, the guide restraint of a control wire is realized, the oxidation corrosion in a high-humidity environment, rat gnawing and short circuit phenomena can be prevented, the service life can be prolonged, the later maintenance can be simplified, and the appearance is attractive and neat.

The invention belongs to the technical field of transformer equipment, and specifically is a variable frequency power supply for a transformer testing system, comprising a touch panel, a PID control module, a voltage detection and regulation control module, a transformer group, a filter module, a protection module, an accidental power failure protection module, a communication module, and an exhaust module; the output voltage of the circuit is adjusted by utilizing the SPWM hardware adjustment technology, and the output voltage of the circuit is stabilized by adopting the PID control by utilizing the detection of the feedback amount; the high-frequency SPWM hardware adjustment technology has fast response speed and stable output; the hardware waveform synthesis and PID control are adopted to realize the stable output waveform and high response speed; the touch panel is used as a control panel, and has a parameter memory function, which simplifies the operation; the software and hardware combined power supply device protection mode is adopted, and overheating, overcurrent, short circuit and other protections can be performed, and the safety is extremely high; the high-power IGBT / IPM driver is adopted, and the driver has a large overload capacity.

The invention discloses a rice soft-shelled turtle ecological breeding system which comprises a rice planting area, a soft-shelled turtle breeding area is arranged on one side of the rice planting area, the horizontal height of the soft-shelled turtle breeding area is larger than that of the rice planting area, and a peripheral dam is arranged on the outer side of the rice planting area. The peripheral dam is provided with a plurality of first water inlets and outlets which are communicated with the rice planting area and the water channel, the first water inlets and outlets are provided with first gates, the top of the inner dam is provided with an inner escape-proof net, the soft-shelled turtle breeding area comprises a first soft-shelled turtle breeding area and a second soft-shelled turtle breeding area which are communicated, the first soft-shelled turtle breeding area is provided with a liftable feeding table, and the second soft-shelled turtle breeding area is provided with a liftable feeding table. A separation net is arranged at the junction of the first soft-shelled turtle breeding area and the second soft-shelled turtle breeding area, and a passageway communicated with the rice planting area is arranged on the inner box dam on the outer side of the second soft-shelled turtle breeding area. The organic fertilizer is easy to obtain, the planting cost is reduced, the turtles are prevented from biting the roots of the rice, the survival rate of the rice is increased, feeding of the turtles is facilitated, and the breeding quality and the breeding efficiency are improved.

The utility model provides a sliding sleeve mechanism of a tea strip tidying machine, which comprises a sliding rod and a sliding sleeve, the sliding rod is sleeved and connected with the sliding sleeve in a sliding manner, the side part of the sliding sleeve is fixedly provided with a mounting plate, and the two sides of the mounting plate are fixedly provided with limiting rods; a buffer plate is arranged outside the mounting plate, and a gap is formed between the mounting plate and the buffer plate; limiting holes are formed in the two sides of the buffer plate, the limiting rods penetrate through the limiting holes, and the buffer plate and the limiting rods are rotationally and slidably connected; soldering lugs are welded to the ends, away from the mounting plate, of the limiting rods and used for limiting sliding of the buffer plate. A connecting plate is fixed to the top of the buffer plate. When the sliding sleeve slides under the action of external force, the external force acts on the connecting plate to drive the buffer plate to rotate, so that the sliding sleeve is prevented from being deformed and biting the sliding rod due to stress, and the sliding of the sliding sleeve is prevented from being blocked; and the damage to the sliding sleeve and the sliding rod caused by the stress of the sliding sleeve due to expansion can be effectively avoided.

The invention discloses a shielding data cable, and relates to the field of cables, the shielding data cable comprises a shielding assembly and an anti-biting assembly, and the outer surface of the anti-biting assembly is provided with a protection assembly used for preventing the cable from being damaged by external factors; according to the shielding data cable, in order to improve the strength of the shielding data cable, the low-smoke layer can effectively prevent the data cable from releasing a large amount of smoke when a fire disaster is caused by short circuit, the armor layer can further improve the strength of the data cable, and the reinforcing layer improves the physical strength of the data cable; the buffer layer can effectively prevent the data cable from being damaged in the complete process, the aluminum strip can effectively prevent external water vapor from entering the data cable, and the mechanical protection layer on the outermost layer of the data cable can well adapt to the change of the shape of the data cable, so that the strength of the data cable is further improved, and the service life of the data cable is prolonged. The problem that in the prior art, a traditional shielding data cable is low in self-protection strength, prone to being physically damaged and incapable of being normally used is solved.

The invention relates to a layer-stranded optical cable and a cabling method thereof, the layer-stranded optical cable comprises a cable core, an inner sheath wrapped outside the cable core, and a metal protective layer, a mouse glue layer and an outer sheath which are sequentially arranged outside the inner sheath, and the metal protective layer is a metal mesh belt which is provided with spines and is wound and wrapped outside the inner sheath. The mouse sticking adhesive layer is a mouse sticking adhesive tape wound and wrapped outside the metal protective layer, and a glass fiber mesh is arranged in the outer sheath. First-time rat prevention can be achieved through the glass fiber net in the outer sheath, after the outer sheath is damaged, rat sticking glue in the rat sticking glue layer can stick and kill rats, secondary rat prevention is achieved, after the rat sticking glue layer is damaged, third-time rat prevention can be achieved through the metal protection layer, the rat prevention performance of the optical cable can be improved, optical fibers in the optical cable can be effectively protected, and the service life of the optical cable is prolonged. And communication stability is ensured.

The utility model discloses a rat-proof and termite-proof power cable, which relates to the technical field of power cables and comprises a wire core, a base and a shunting assembly. An insulating layer is installed outside the wire core, a protective layer is installed outside the insulating layer, an upper cover is arranged at the top end of the base, the base and the upper cover are connected with each other through a fastening bolt, and a clamping ring is fixedly installed at one end of the base and one end of the upper cover. Through the arrangement of the base and the upper cover, one-time protection against rats and ants can be formed on a cable, in addition, the shunting assemblies used for guiding drugs to evenly enter soil are fixedly installed on the two sides of the base, so that the drugs are evenly in contact with the soil, an even isolation belt is formed outside the device, rats and ants are better repelled, and the safety of the device is improved. In addition, the protection layer arranged outside the cable core can prevent the cable from being bitten by rats and ants, the multiple protection modes enable the device to perform multiple protection on the cable, and the cable is prevented from being damaged by rats and ants.

A camera with a protection function comprises a camera body, a protection layer is arranged on the surface of the camera body, and a plurality of spines are distributed on the protection layer. According to the utility model, the protective layer is arranged on the surface of the camera, the spines are distributed on the protective layer, and the spines can effectively prevent animals from biting and attacking the camera, so that the camera is well protected, the protective layer is thin in thickness, light in weight, small in size and convenient for hunters to carry, and in addition, the protective layer can be detached from the camera, so that the camera is convenient to carry. And then the camera is stored in a small box, so that the camera is further convenient to carry, and the experience of hunters is greatly improved.

The application discloses a kind of convenient Chinese language literature query reading device and its use method, including bookshelf, the bottom of the bookshelf is provided with sliding cavity, the inside both sides of the sliding cavity are provided with positioning slide, the inside of the sliding cavity is provided with sliding connection desk, and the bottom of the desk one side is provided with dynamic pulley at both ends, the inside of the bookshelf is located above the desk and is provided with a plurality of supporting plates, the inside of the bookshelf is located at the position above supporting plate and is provided with positioning block, the upper end of the supporting plate is provided with book clamp corresponding with the positioning block one by one. Advantageous effect: by connecting the two sides of the book with the adsorption suction cup on the surface of the rotating plate and the adsorption suction cup on the straight plate respectively, the book is fixed with the book clamp, and then the book is taken from the bookshelf, the purpose of protecting the surface of the book from being damaged by preventing new wrinkles is achieved.

The utility model provides a medium-voltage waterproof cable, which relates to the technical field of cables and comprises a cable main body, three conductors are arranged in the cable main body, shielding layers are fixed on the outer walls of the three conductors, and wrapping tape layers are arranged on the outer sides of the three shielding layers. The anti-corrosion layer is arranged, the anti-corrosion layer adopts the stainless steel sheath, and the stainless steel sheath can enhance the corrosion resistance and durability of the cable main body, can prevent biting of animals such as rats, and enhances the overall strength of the cable main body; polyurethane has excellent wear resistance and oil resistance, so that the overall wear resistance of the cable main body is improved, through the arrangement of the insect prevention strip, the interior of the insect prevention strip is made of the same material as that of the external sleeve, and an insect repelling additive is added into the insect prevention strip, so that odor or smell with a repelling effect on insects, rats and the like can be emitted, and the service life of the cable main body is prolonged. And the cable main body is prevented from being bitten by mice or insects.

This utility model discloses a power cable with an easy-to-peel sheath, comprising: a sheath, a supporting skeleton provided inside the sheath, and a groove formed on the inner wall of the sheath; triangular holes formed on the inner wall of the supporting skeleton, and a filler sleeve adhered to the inner wall of the supporting skeleton. This utility model relates to the field of cable technology. The sheath and supporting skeleton, through the design of pre-cut grooves and embedded tear strips on the inner wall of the sheath, allow construction personnel to evenly tear the sheath along the groove direction simply by pulling the tear strips. Simultaneously, the weak adhesion design between the waterproof sleeve and the adhesive strip enables simultaneous peeling of the sheath and the waterproof sleeve. The triangular hole array structure on the inner wall reduces the overall weight of the cable while enhancing its tensile strength through the mechanical stability of the triangle. Combined with the outer galvanized steel strip armor layer, it can withstand greater external mechanical pressure.

The utility model discloses a pipeline protection mechanism for electronic engineering computer information management, which relates to the technical field of pipeline protection and comprises a support beam and a trunking, a baffle plate is connected below the inner wall of the trunking through a torsion spring shaft, a limiting strip is fixed below the inside of the trunking, and a bin body is connected to the bottom of the trunking. A first glass plate is fixed to the middle of the outer surface of the bin body, a collecting box penetrates through the lower portion of one side of the bin body, and activated carbon is arranged in the collecting box. According to the utility model, the cabin body, the first glass plate, the limiting strip, the baffle plate and the torsion spring shaft are arranged; due to the fact that the vision of the mouse is poor, the mouse usually loves to walk along the corner, the mouse can easily walk to the position above the baffle, at the moment, the weight of the mouse enables the baffle to rotate downwards and compress the torsion spring shaft, the mouse falls into the bin body, after the mouse falls into the bin body, the phenomenon that the mouse bites the electric wire is reduced, and then the torsion spring shaft drives the baffle to reset. And the phenomenon that the cable is bitten by rats is effectively reduced, so that the pipeline is conveniently protected.

The invention relates to the technical field of high-voltage cables, and particularly discloses a rat-proof and termite-proof high-voltage cable, which comprises a cable, the outer surface of the cable is sleeved with a wrapping sleeve, the outer surface of the wrapping sleeve is sleeved with a spiral protective sleeve, and the outer surface of the spiral protective sleeve is provided with a medicine filling hole; the invention further discloses a production process of the rat-proof and ant-proof high-voltage cable, the outer surface of the spiral protective sleeve is drilled, the repellent is poured into the inner cavity of the drug filling hole, then the cable penetrates through the roller, the extrusion cylinder and the driving cylinder and is clamped, the motor is started, the cable is driven to rotate and move forwards, and then the cable is driven to rotate and move forwards. The spiral protective sleeve is arranged on the outer surface of the wrapping sleeve, the end of the spiral protective sleeve is connected with the outer surface of the wrapping sleeve, when the cable rotates and moves, the spiral protective sleeve is wound around the cable, meanwhile, the motor drives the screw pump to work, and the gap surface of the spiral protective sleeve is coated with glue. According to the invention, multiple processes of cable rotation, movement, spiral protective sleeve winding, glue coating and the like are carried out synchronously, and the production efficiency of the cable is improved.