90results about How to "With anti-shock function" patented technology

The invention discloses an LED lamp. The LED lamp comprises a lamp base and a lamp holder arranged on the bottom of the lamp base. A containing cavity is formed in the bottom in the lamp base. Sliding grooves are formed in the left side and the right side of the containing cavity. Spiral rods are arranged in the sliding grooves, and the tops of the spiral rods are connected with a driver. A sliding plate is arranged in the containing cavity. The two side ends of the sliding plate extend into the sliding grooves and are in cooperation connection with threads of the spiral rods. The bottom of the sliding plate is provided with a connecting block. The bottom of the connecting block penetrates the bottom wall of the lamp base and is in sliding cooperation connection with the bottom wall of the lamp base. First grooves are symmetrically formed in the left and right in the connecting block. Counter bores are formed in the tops of the first grooves. A connecting groove is formed in a bottom end face of the connecting block. Parts, between the connecting groove and the first grooves, of the connecting block are internally provided with through grooves. The outer side wall of each through groove is symmetrically provided with second grooves. First sliding blocks are arranged in the first grooves. First tension springs are arranged between the tops of the first sliding blocks and the corresponding counter bores. The bottom of each first sliding block is provided with a sliding rod extending into the through groove. The LED lamp is simple in structure, convenient to operate, stable in insertion connection and high in safety.

The invention discloses an information device, which comprises a base body and a connection part arranged at the left side of the base body. The base body is provided therein with an empty groove. The upper side and the lower side of the empty groove are both provided with a first sliding groove. Each sliding groove is provided with a stud bolt. The left side end of the stud bolt is connected with a motor. The right side inner wall of the empty groove is provided with a first groove part; the left side inner wall of the empty groove is provided with an electrical connection rod. The empty groove is provided therein with a push-and-pull block whose upper side and the lower side probe into the first sliding grooves at the upper side and the lower side of the empty groove and which cooperates and is flexibly connected with the empty groove. The push-and-pull block inside the first sliding grooves is in threaded connection and cooperation with the stud bolt. The left side end face of the push-and-pull block is provided with a first electrical connection hole arranged corresponding to the first electrical rod; and between the left side end face of the push-and-pull block and the first sliding grooves are provided with electrical connection wires. The wall body at the left side of the base body is provided therein with an insertion and combination groove. The right side inner wall of the insertion and combination groove is provided with a second electrical connection rod. The information device of the invention has a simple structure, is convenient to operate, and achieves high security and connection fastening performance.

The invention discloses a socket and plug assembly with an anti-electric-shock function. The socket and a plug assembly comprises a socket body and a plug body. The socket body comprises a cover shelland a bottom plate, a slide plate is arranged inside the cover shell, a square pillar is vertically arranged in a middle portion of an upper end surface of the bottom plate, a square hole is arrangedin the sliding plate, the square column and the square hole are in a sliding fit, and the outer side of the square column between the sliding plate and the bottom plate is sleeved with a first spring. The upper end surface of the sliding plate is provided with a pair of conductive seats, a conductive column at the bottom of each conductive seat movably passes through the sliding plate and then isthreadingly connected to a conductive block, and a copper row is embedded to the bottom plate under each conductive block. The inner walls of two sides of the cover shell are horizontally and slidingly connected to two sliders, the lower end of each slider is provided with a first bending section, the upper end of each slider is provided with a second bending section, a jack is arranged in the cover shell above each second bending section, and a lock mechanism is arranged between the plug body and the socket body. According to the socket and plug assembly, electric shock accidents can be effectively avoided, and the safety hazards are eliminated.

The invention provide a novel insulated cable which is high in fire-resistant performance, high in overload protecting capacity, high in working temperature, high in anti-radiation capacity and excellent in shielding performance. The novel insulated cable comprises at least one cable core conductor, fire-resistant layers, insulating layers, oxygen-barrier layers, wrapping layers and filling layers, wherein each cable core conductor is formed by winding at least two aluminum alloy cable cores, each fire-resistant layer is a double-sided flourophlogopite belt, each insulating layer is a ceramic fire-resistant composite belt, each oxygen-barrier layer is a ceramic fire-resistant composite belt, each wrapping layer is a vitreous fiber belt, each filling layer is made of vitreous fibers, at least one fire-resistant layer and at least one insulating layer are sequentially wound outside each cable core conductor, the cable core conductors form an overall cable core, at least one oxygen-barrier layer and at least one wrapping layer are sequentially wound outside the overall cable core, and the space between the cable core conductors and the space between the overall cable core and the oxygen-barrier layers are filled with the filling layers.

The invention discloses an air purification device which comprises an air purifier, a joint part connected with an electrical connection seat purifier by an electrical connection wire, and an electrical connection seat arranged on the front end face of a machine body. A control region is arranged at the center of the front end face of the purifier; an atomization opening is formed on the front end face of the purifier above the control region; an external screwing part is arranged on the front end face of the electrical connection seat; a through hole is formed in the external screwing part; an insertion slot is formed in the electrical connection seat at the rear side of the through hole; a second insertion needle is arranged on the inner wall of the rear side of the insertion slot; a first empty slot is formed in the electrical connection seat behind the insertion slot; a hole slot is formed on the inner wall of the rear side of the first empty slot; a pushing block is arranged in the first empty slot at the front side of the hole slot; a pushing spring plate is arranged between the end face of the rear side of the pushing block and the hole slot; guide feeding rods are correspondingly arranged in the first empty slot at both sides of the pushing spring plate; the guide feeding rods are movably matched and connected with the pushing block; a pressed-against rod which passes through an inner wall body of the electrical connection seat and extends into the insertion slot is arranged at the front end side of the pushing block; concave parts are formed in the left and right side end walls of the pushing block; a spline rotating shaft is correspondingly arranged in the first empty slot outside the pushing block; the rear side end of the spline rotating shaft is connected with a motor. The air purification device disclosed by the invention is simple in structure, convenient to operate, high in purification capacity and stable in power supply connection, and has an electric shock protection function; an electric shock accident is prevented; safety and stability of power supply are improved.

The invention discloses a garden illuminating LED street lamp which comprises an upper lamp body and a lower lamp body, wherein an accommodating cavity is formed inside the upper lamp body; a power supply seat is arranged on the inner top wall of the accommodating cavity; lifting motors are symmetrically arranged on the inner top wall of the accommodating cavity on two sides of the power supply seat; heat-removal assemblies are arranged outside the lifting motors, and comprise metal heat-drop sheets and heat-removal fans; the metal heat-drop sheets are fixedly connected with the exteriors of the lifting motors; the heat-removal fans are arranged on the metal heat-drop sheets; lifting screw is in power connection with the bottom of each lifting motor; a moving block is connected with each lifting screw in a screw-thread fit manner; a lap-joint groove is formed between the moving blocks; limiting blocks are arranged at the top of the lap-joint groove; a through groove is formed between the limiting blocks; a communicating groove is formed in the bottom wall, opposite to the bottom of the lap-joint groove, of the upper lamp body; and first sliding cavities are symmetrically formed in the moving blocks on two sides of the lap-joint groove.

The invention relates to a microprocessor-based embedded intelligent power socket implemented in an infrared remote control signal decoding mode, which comprises an external power interface, a motherboard and an output socket, wherein the motherboard comprises an anti-thunder and anti-surge module, a microprocessor, an infrared receiving module, a direct-current voltage-stabilized power module, a two-path relay driving module, a current detecting and debugging module, a voltage detecting and debugging module, a USB power module, an external storage module, and a wireless module. By acquiring and recording loaded current and voltage signals in real time, the intelligent power socket provided by the invention can achieve automatic power off when a loaded current is too big or the load is in a stand-by state; the intelligent power socket disclosed by the invention can be controlled through a mobile phone APP or infrared remote control signals; the infrared remote control signal decoding mode provided by the invention can achieve decoding on any keys of any infrared remote controls under the condition that no infrared signal matching learning is performed, thereby realizing the on-off control of an output power supply; and the intelligent power socket disclosed by the invention also has the functions of thunder prevention, surge prevention, and electric shock prevention.

The invention discloses a high-safety and anti-loosening electric power supply device. The device comprises a socket part, a connecting part and a plug part; an inner spiral thread cavity is formed in the portion, close to the left side, of the interior of the socket part, sliding grooves are correspondingly formed in the portions, close to the right side, of the upper inner wall and the lower inner wall of the inner spiral thread cavity, the sides, deviated from the inner spiral thread cavity, of the sliding grooves are each provided with an oblique-angle groove, a sliding guiding rod is arranged in each sliding groove, a sliding block is slidably connected to each sliding guiding rod in a matched mode and slidably matched with the corresponding sliding groove, a first tension spring is wound on the portion, on the right side of the corresponding sliding block, of the outer side of each sliding guiding rod, the sides, close to the inner spiral thread cavity, of the sliding blocks stretch into the inner spiral thread cavity, a first through groove is formed in each sliding block in a vertically penetrating mode, a first containing groove is formed in the center inside each first through groove, first convex blocks are slidably arranged in the first containing grooves, and partition plates are slidably connected in the first through grooves. The device is simple in structure and high in power supply connection stability and has the anti-loosening and anti-electric shock functions, and the safety is improved.

The invention relates to an external plug-in type intelligent power socket based on a microprocessor and under an infrared remote control signal decoding mode. The external plug-in type intelligent power socket comprises an external power plug, a main board and an output socket; the main board comprises an anti-thunder and anti-surge model, the microprocessor, an infrared receiving module, a DC voltage-stabilized power module, a double-way relay driving module, a current detecting conditioning module, a voltage detecting conditioning module, a USB power supply module, an external storing module and a wireless module. According to the intelligent power socket, the load current and voltage signals are acquired and recorded on real time; the power supply can be automatically cut off in case of excessively large load current or that the load is in a standby state; the intelligent power socket can be controlled through phone APP or infrared remote control signals; the infrared remote control signal decoding mode can be used for decoding any key of any infrared remote controller without infrared signal matching learning, and thus the output power supply can be controlled to be switched on and off. The intelligent power socket also has the anti-thunder and anti-surge functions and electric shock preventing function.

The invention discloses a novel air purifying device. The air purifying device comprises a purifier, a bolt part and a socket; a control area is arranged in the center of the front end surface of the purifier; an atomization port is formed in the front end surface of the purifier above the control area; a cavity is formed in the socket; first slide grooves are respectively formed in the upper and lower two sides of the cavity; screw rods are respectively arranged in each of the first slide grooves; the left side ends of the screw rods are connected with an electric rotating machine; first hole grooves are formed in the right side inner wall of the cavity; first electric connecting rods are arranged on the left side inner wall of the cavity; slide blocks respectively inserted in the first slide grooves on the upper and lower two sides by the upper and lower two sides and slidably connected and matched with the first slide grooves are arranged in the cavity; the slide blocks in the first slide grooves are in threaded matching and connection with the screw rods; first electric connecting holes corresponding to the first electric connecting rods are formed in the left side end surfaces of the slide blocks; leads are arranged between the left side end surfaces of the slide blocks and the first hole grooves; insertion grooves are formed in a wall body on the left side of the socket; and second electric connecting rods are arranged on the right side inner walls of the insertion grooves. The air purifying device is simple in structure, convenient to operate, excellent in purifying effect and high in safety and connecting tightness.

The invention relates to the technical field of sockets and particularly relates to a spring-type safety socket with an anti-electric shock function, which comprises a shell. A fixing mechanism is fixedly mounted in the middle of one side of the shell; a plurality of grooves are uniformly formed in the upper surface of the shell; a plurality of power connection slots are formed in the upper surface of a power connection box; a partition plate is fixedly installed on the upper portion in the power connection box; an anti-electric shock mechanism is fixedly mounted below each power connection slot; a power connection contact block is fixedly mounted in the middle of the bottom in the power connection box; a connecting block is fixedly installed on the lower portion in the power connection box through two reset mechanisms; the two reset mechanisms are located on the two sides of the connecting block respectively; a second clamping groove is formed in the middle of the lower surface of theconnecting block; a conductive column is communicated between the first clamping groove and the second clamping groove; and the second clamping groove is located over the power connection contact block. The spring type safety socket with the anti-electric shock function has waterproof, dustproof and anti-falling functions, also has the anti-electric shock function, and is stable in power connection during use.

The invention discloses a hand drying device. The device comprises a base, a spinning part and an assembly part, wherein an inner spiral grained empty groove is formed inside the base close to the left side, and sliding grooves are correspondingly formed in upper and lower inner walls of the inner spiral grained empty groove, close to the right side; a beveling groove is formed in one side, away from the inner spiral grained empty groove, of each sliding groove; a sliding rod is arranged in each sliding groove and is connected with a sliding block in a sliding fit manner, each sliding block and the corresponding sliding groove are in sliding fit, a first elastic part is wound outside each sliding rod on the right side of the corresponding sliding block, one side, close to the inner spiral grained empty groove, of the sliding block runs into the inner spiral grained empty groove; a first hole slot is formed in each sliding block in a penetrating manner, and a first square groove is formed in the middle end inside each first hole slot; and a first flange part is arranged in each first square groove in a sliding manner, and a stop dog is connected in each first hole slot in a sliding manner. The hand drying device has the advantages of simple structure, convenience in assembly and high stability, has an electric shock protection function, and can be used for improving the safety during maintenance.

The invention discloses a practical LED lamp, which comprises a lamp holder and a lamp holder arranged at the bottom of the lamp holder. The inner bottom of the lamp holder is provided with a cavity; The top of the screw rod is connected with the driver, and there is a sliding plate in the cavity. The two sides of the sliding plate extend into the sliding groove and are connected with the spiral pattern of the screw rod. The bottom of the sliding plate is provided with a connecting block, and the bottom of the connecting block runs through the bottom of the lamp holder. The walls are slidingly matched and connected. The interior of the connecting block is provided with a first groove body symmetrically on the left and right sides. The top of the first groove body is provided with a countersunk hole. There are through grooves in the blocks, the outer side wall of each through groove is matched with a second groove body, a first sliding block is arranged in the first groove body, and a first tension spring is arranged between the top of the first sliding block and the counterbore, The bottom of the first sliding block is provided with a sliding rod extending into the through groove; the invention has simple structure, convenient operation, stable insertion and high safety.

The invention discloses a safe indication plate device which comprises a base, a connecting rod piece and an indication plate part, wherein an internal thread groove is formed in the left side of the base; sliding grooves are symmetrically formed in the upper inner wall and the lower inner wall of the right side of the internal thread groove; an inclined hole is arranged on one side of each of the sliding grooves, which is far away from the internal thread groove; a guide rod is arranged in each of the sliding grooves; a sliding block is connected onto each of the guide rods in a sliding and matching manner; the sliding blocks are matched with the sliding grooves in a sliding manner; a first compression spring is arranged on the outer side of the guide rod on the right side of each of the sliding blocks in an encircling manner; one side of each of the sliding blocks, which is near the internal thread groove, penetrates into the internal thread groove; a first penetrating hole is formed in each of the sliding blocks from top to bottom in a penetrating manner; a first placement groove is formed in the center in each of the first penetrating holes; a first pressing block is arranged in each of the first placement grooves in a sliding manner; and a spacing block is connected in each of the first penetrating holes in a sliding manner. The safe indication plate device is simple in structure, convenient in assembly and high in stability and has an anti-electric shock function, and the safety is improved.

The invention discloses a novel LED lamp. The novel LED lamp comprises a lamp holder and a lamp head in matched connection with the lamp holder, wherein an external spiral thread piece is arranged on the front end surface of the lamp holder; a through groove is formed in the external spiral thread piece; an insertion hole is formed at the position, on the rear side of the through groove, in the lamp holder; a second insertion column is arranged on the inner wall of the rear side of the insertion hole; a first accommodating cavity is formed at the position, behind the insertion hole, in the lamp holder; a counter bore is formed in the inner wall of the rear side of the first accommodating cavity; a push block is arranged at the position, in the front side of the counter bore, in the first accommodating cavity; a tension spring is arranged between the end surface of the rear side of the push block and the counter bore; guide rods are symmetrically arranged at the positions, on the two sides of the tension spring, in the first accommodating cavity and are in sliding matched connection with the push block; an ejection rod penetrating the inner wall body of the lamp holder and extending into the insertion hole is arranged on the front end side of the push block; concave holes are formed in the end walls of the left side and the right side of the push block; spline revolving shafts are symmetrically arranged at the positions, in the outer side of the push block, in the first accommodating cavity; the rear side ends of the spline revolving shafts are connected with driving machines. The novel LED lamp is simple in structure, simple and convenient to mount and firm in connection and has an anti-electric shock function, so that electric shock accidents are prevented, and mounting efficiency and power supply safety are improved.

The invention discloses an adsorption type safety socket. The adsorption type safety socket comprises an inserting column, a plurality of monomer sockets and an adsorption base; each monomer socket is provided with two phase conductive grooves, two phase jacks and a safety mechanism; each monomer socket is further provided with a heat-radiation fan, an internal temperature detector, an external temperature detector and a power supply controller; when a difference value between a detection temperature value and an environment temperature value is greater than a preset threshold, the power supply controllers enables the heat-radiation fan to be turned on; and, when the difference value between the detection temperature value and the environment temperature value is less than or equal to the preset threshold, the power supply controllers enables the heat-radiation fan to be turned off According to the adsorption type safety socket, the sockets can be rapidly fixed at any position, and heat-radiation and electric shock protection functions are integrated into one body.

The invention provides an anti-electric shock connector with a built-in magnet. A first magnet and a second magnet are arranged in the anti-electric shock connector, and conduction and disconnection of the anti-electric shock front-end electrode and the anti-electric shock rear-end electrode are ingeniously realized by utilizing the characteristic that like magnetic poles of the magnets repel eachother so that the occurrence of an electric shock accident of a human body is avoided. A fuse is arranged in the other conductive part of the anti-electric shock connector, so the connector has anti-short circuit and anti-electric shock functions. According to the anti-electric shock connector, the signal transmission electrode is added to the anti-electric shock connector, so signal communication can be performed to monitor the state of the battery in real time, and the connector has a signal transmission function and an anti-electric shock function or has a signal transmission function, ananti-short-circuit function and an anti-electric shock function.

The invention discloses a stable sign board device which comprises a base, a combining rod and a sign board part. The left side of the base is internally provided with an inner spiral pattern trough. The upper inner wall and the lower inner wall at the right side of the inner spiral pattern trough are symmetrically provided with sliding troughs. One side, which is far from the inner spiral pattern trough, of the sliding trough is provided with an oblique hole. Each sliding trough is internally provided with a guiding rod. The guiding rod is connected with a sliding block in a slidable matching manner. The sliding block slidably matches the sliding trough. A first tension spring surrounds the guiding rod at the right side of the sliding block. One side, which is next to the inner spiral pattern trough, of the sliding block penetrates through the inner spiral pattern trough. A first through hole vertically penetrates through the sliding block. The first through hole is internally provided with a first accommodating trough at the central part. A first pressing block is slidably arranged in the first accommodating trough. A block is slidably connected in the first through hole. The stable sign board device has advantages of simple structure, high convenience in mounting, high stability, effective electric shock preventing function and effective safety improvement.

The invention discloses a stand column with energy absorption, scour prevention and receding functions. The problems that a hydraulic stand column cannot resist strong impact load, the phenomena of bending, fracture, cylinder explosion and the like of the hydraulic stand column are often caused when rock burst occurs, and normal support of a roadway is influenced in the prior art are solved. The stand column with the energy absorption, scour prevention and receding functions comprises a stand column cylinder body provided with a liquid inlet and a pressure relief safety valve at the lower end, and is characterized in that a liquid return opening is formed in the upper end of the stand column cylinder body, and a telescopic plunger is inserted into an opening in the upper end of the stand column cylinder body; an energy-absorbing and scour-preventing receding piston is arranged at the lower end of the inner part of the stand column cylinder body on the telescopic plunger; a plunger rod sealing piece is arranged between the inner wall of the opening in the upper end of the stand column cylinder body and the outer wall of the telescopic plunger. The stand column with energy absorption, scour prevention and receding functions is reasonable in design, compact in structure and capable of rapidly absorbing impact energy, effectively protecting the hydraulic stand column structure from being affected by impact damage, guaranteeing the personal safety of underground operating personnel and shortening the production recovery time after the rock burst occurs.

The invention relates to the technical field of water surface warning devices, in particular to a water surface warning device with an anti-impact function, which comprises a solar panel, a support, astorage battery, a warning lamp, a bottom plate and a sliding cover plate, and the top end of the support is connected with the bottom end of the solar panel, the solar panel is electrically connected with the storage battery, and the storage battery is electrically connected with the warning lamp; sliding grooves are formed in the front portion and the rear portion of the top end of the bottom plate, the sliding cover plate is in a semi-cylinder shape, the front portion and the rear portion of the bottom end of the sliding cover plate are located in the corresponding sliding grooves respectively, and the front portion and the rear portion of the bottom end of the sliding cover plate are connected with the inner walls of the corresponding sliding grooves in a sliding and sealing mode respectively. A protective box is fixedly connected to the right portion of the top end of the bottom plate and is a transparent glass plate, the right portion of the top end of the bottom plate is connected with the bottom end of a warning lamp, and a first electric push rod is installed in the middle of the top end of the bottom plate. And the damage condition is reduced, and the use reliability ishigh.

The invention discloses a novel power supply plug and socket device including a socket part and a plug part in associated connection with the socket part. A first accommodation cavity is arranged in the socket part. A sleeve pipe is in rotary connection with the inner side of the first accommodation cavity. A female thread cavity is arranged in the right side of the sleeve pipe. A slide table is arranged in the female thread cavity in a threaded manner. A connection rod arranged extending rightwards is fixed on the right end face of the slide table. First slide grooves are arranged symmetrically in the upper side and the lower side of the connection rod. A driver is arranged in the left inner wall of the first accommodation cavity and the right side of the driver is connected with a swivelpin roll. The right end face of the swivel pin roll is fixedly connected with the sleeve pipe. Accommodation grooves are symmetrically arranged in inner walls on the upper side and the lower side ofthe first accommodation cavity. Each accommodation cavity is therein provided with tooth wheel and a second accommodation cavity is arranged on the left side in the socket part. Second slide grooves are arranged in the upper side and the lower side of the second accommodation cavity. Slide blocks extending into the second slide grooves are arranged in the second accommodation cavity.

The invention discloses a heat dissipation structure of a light-emitting diode (LED) recessed lamp. The heat dissipation structure is good in heat dissipation, the joint is convenient, and the safety is high. The heat dissipation structure comprises a protection cover, an LED driver, a radiator, a lamp cup and an LED module, wherein a driver bottom plate and a driver lower cover are arranged on the outer side of the LED driver; the lamp cup is arranged under the radiator which is located at the top of the lamp cup; a containing cavity is formed in the lamp cup; the cavity in the lamp cup is provided with the LED module; a power source is arranged on the lower portion of the LED driver; wiring terminals are arranged on the upper portion of the LED driver; the wiring terminals are EE, LN and LN terminals. A driver arrangement mode different from traditional modes is adopted, the temperature of electronic parts is decreased, and the service life is prolonged.

The invention discloses a multifunctional disaster prevention cap belonging to the technical field of safety helmets. A cap body and a protective pad are connected through double threads in a sewing mode. A protective film is assembled on the obverse side of the cap body. The left side and the right side of the cap body are respectively sewed to a diamond through four sewing threads in a quilting seam mode, a copper ring is embedded in each diamond, and lower ends of quilting seam diamonds on the left side and the right side are respectively provided with a button in a sewing mode. The cap body and the lower end of the front of the protective pad are connected through elastic cords, an attached bag is arranged on the right front of the inner side of the protective pad, and an absorbent gauze mask is assembled in the attached bag. The disaster prevention cap is strong in practicality, meanwhile has functions of impact prevention, inflaming retardance, watertightness and heat preservation of a head and shoulders, and can be used as a cushion and a backrest with diversity functions.

The invention discloses a power supply device. The power supply device includes a socket part and a plug part in fitted connection with the socket part. The socket part is therein provided with a first accommodation cavity. A sleeve is connected in the first accommodation cavity in a manner of rotary fitting. A female thread cavity is arranged in the right side of the sleeve. A slide table in threaded fitting with the female thread cavity is arranged in the female thread cavity. A connection rod arranged to prolong in the right side is fixed on the right side end face of the slide table. Firstslide grooves are arranged in the upper side and the lower side of the connection rod symmetrically. A driver is arranged on the inner wall of the left side of the first accommodation cavity. A rotary pin is connected to the right side of the driver. The right side end face of the rotary pin is fixedly connected with the sleeve. Accommodation grooves are arranged in the inner walls on the upper side and the lower side of the first accommodation cavity symmetrically. Each accommodation groove is provided with a tooth wheel and a second accommodation cavity is arranged in the socket part on theleft side. Second slide grooves are arranged in the upper side and the lower side of the second accommodation cavity. Slide block protruding into the second slide grooves are arranged in the second accommodation cavity.

The invention discloses a safe socket with a good heat dissipation effect. The safe socket comprises a socket body, wherein the socket body is provided with a plurality of two-phase electric conduction grooves, a plurality of two-phase jacks, a plurality of safety mechanisms, a single heat dissipation fan, a plurality of internal temperature detectors, a single external temperature detector and a single power supply controller; the power supply controller receives a plurality of detection temperature values from the plurality of internal temperature detectors, receives an environment temperature value from the external temperature detector and compares the plurality of detection temperature values with the environment temperature value; and when a difference value between any one detection temperature value and the environment temperature value is greater than a preset threshold value, the power supply controller starts the heat dissipation fan, and causes the air outlet of the heat dissipation fan to face the two-phase electric conduction groove corresponding to the detection temperature value so as to cause the socket to have a better heat dissipation effect. The safe socket with the good heat dissipation effect has an excellent heat dissipation effect, can effectively avoid electric shock and greatly prolongs the service life of the socket.

The invention discloses a hand drying device. The device comprises a base, a spinning part and an assembly part, wherein an inner spiral grained empty groove is formed inside the base close to the left side, and sliding grooves are correspondingly formed in upper and lower inner walls of the inner spiral grained empty groove, close to the right side; a beveling groove is formed in one side, away from the inner spiral grained empty groove, of each sliding groove; a sliding rod is arranged in each sliding groove and is connected with a sliding block in a sliding fit manner, each sliding block and the corresponding sliding groove are in sliding fit, a first elastic part is wound outside each sliding rod on the right side of the corresponding sliding block, one side, close to the inner spiral grained empty groove, of the sliding block runs into the inner spiral grained empty groove; a first hole slot is formed in each sliding block in a penetrating manner, and a first square groove is formed in the middle end inside each first hole slot; and a first flange part is arranged in each first square groove in a sliding manner, and a stop dog is connected in each first hole slot in a sliding manner. The hand drying device has the advantages of simple structure, convenience in assembly and high stability, has an electric shock protection function, and can be used for improving the safety during maintenance.

The invention discloses a buried optical cable, which comprises a protecting bush. A base is arranged on the lower end of the protecting bush; an inserting block is arranged on the lower end of the base; a protecting plate is arranged on the upper end of the protecting bush; a reinforcing rib is arranged in the middle part of the upper end of the protecting plate; reinforcers are respectively arranged on two ends inside the protecting bush; two connecting strips are arranged between the two reinforcers; a cylindrical core is arranged in the middle in the protecting bush; an optical fiber placement layer is covered outside the cylindrical core; optical fiber is placed in the optical fiber placement layer. According to the buried optical cable provided by the invention, through the matching of a limiting slot and a limiting lug, the protecting bush can be well fixed on the base; through the reinforcers on two ends of the protecting bush, the overall strength can be effectively improved; the reinforcers can be made of conductive materials, and the two connecting strips are made of non-conductive materials, so that an electroshock proof function is realized in the protecting bush. The buried optical cable provided by the invention does not need to arrange lightning-protection wires additionally, is time saving, high in strength, good in tensile resistance effect, and suitable to be popularized.